aug 30, 2020 oil lease name index listing page 747 ......2020/08/29 · alexander robbie spraberry...

AUG 30, 2020 OIL LEASE NAME INDEX LISTING PAGE 747 (OLM003)

DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WOODS 212-217 ALLOC 09 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20836 "GATEWAY" SPRABERRY (TREND AREA) OSBORN HEIRS COMPANY 17695 A. A. SUGG 3 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 19678 A.M. MURPHY CODY BELL, SW. (WOLFCAMP) SER E&P, INC. 17481 A.T. CHEANEY "A" FORTUNE (4260 SAND) FORTUNE ENERGY, INC. 17810 A.V. MCMASTER SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 09514 A-BEAR JACK HERBERT (FUSSELMAN) EOG RESOURCES, INC. 12849 ABBY SPRABERRY (TREND AREA) COG OPERATING LLC 16774 ADAM "34" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15996 ADAMC /BEND/ UNIT ADAMC (BEND) CHEVRON U. S. A. INC. 05419 ADAMC/DEVONIAN/UNIT ADAMC (DEVONIAN) CHEVRON U. S. A. INC. 10567 ADAMI NORA (GARDNER SAND) SATANTA OIL COMPANY 13004 ADAMI, WALTER NORA, EAST (MIDDLE CAPPS) TKP PETROLEUM, INC. 11646 ADAMS EAST H 23-26 SPRABERRY (TREND AREA) DE3 OPERATING LLC 21038 ADAMS, ANNA SPRABERRY (TREND AREA) DE3 OPERATING LLC 11134 ADAMS, J. E. "C" FORT TERRETT RANCH (STRAWN 3000) ROCKING R INVESTMENTS, INC. 08755 ADAMS, P. E. & J. E. FORT TERRETT RANCH (CANYON 2800) ROCKING R INVESTMENTS, INC. 05146 ADAMS, P. E. & J. E. FORT TERRETT RANCH (STRAWN 3000) ROCKING R INVESTMENTS, INC. 07211 ADDISON SPRABERRY (TREND AREA) COG OPERATING LLC 15729 ADDISON 4 CAMAR (STRAWN-OIL) HANNATHON PETROLEUM, LLC 17897 ADDISON 4 FORT MCKAVITT (LIME 4150) HANNATHON PETROLEUM, LLC 19520 ADDY FENNELL (KING SAND) 3-D OIL & GAS 17856 ADELLE 45 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18265 ADELY 10 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 21021 ADELY 11 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 21022 ADELY 12 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 21023 ADELY 17 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 20452 AEC UNIVERSITY WEGER (SAN ANDRES) ATROPOS EXPLORATION COMPANY 20155 AEC UNIVERSITY '13' WEGER (SAN ANDRES) ATROPOS EXPLORATION COMPANY 20316 AEGIS 1918-01 SPRABERRY (TREND AREA) XTO ENERGY INC. 20398 AEGIS 1918-02 SPRABERRY (TREND AREA) XTO ENERGY INC. 20447 AEGIS 1918-13 SPRABERRY (TREND AREA) XTO ENERGY INC. 20510 AGARITTA UNIT AGARITTA (KING SAND) KING-GOEN OIL, LLC 13780 AIKEN CHRISTI (CANYON 6800) RAMTEX ENERGY LLC 12805 AKATOR LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18653 AKATOR SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20542 AKATOR "A" LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18222 AKATOR "A" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20541 AKIN, LILLA SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 14040 AKP 6 TAYLOR DRAW (BEND) PBEX OPERATIONS, LLC 19491 ALAMO FREIGHT LINES INC. WILDCAT GASPER RICE RESOURCES, LTD. 13105 ALDA DAVIS JOHN P (ELLENBURGER) GEOSURVEYS, INC. 17985 ALDRIDGE BURNEY (GRAY) WAGMAN PETROLEUM, INC. 12886 ALDWELL SPRABERRY (TREND AREA) APACHE CORPORATION 07722 ALDWELL SPRABERRY (TREND AREA) DE3 OPERATING LLC 09857 ALDWELL -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01772 ALDWELL "A" SPRABERRY (TREND AREA) APACHE CORPORATION 07743 ALDWELL "B" SPRABERRY (TREND AREA) APACHE CORPORATION 07783 ALDWELL "B" SPRABERRY (TREND AREA) DE3 OPERATING LLC 09950 ALDWELL "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12363 ALDWELL "C" SPRABERRY (TREND AREA) APACHE CORPORATION 07813


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ALDWELL "C" SPRABERRY (TREND AREA) HUNT OIL COMPANY 13545 ALDWELL "C" SPRABERRY (TREND AREA) DE3 OPERATING LLC 10071 ALDWELL "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12758 ALDWELL "E" SPRABERRY (TREND AREA) DE3 OPERATING LLC 10073 ALDWELL "E" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12776 ALDWELL "F" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12899 ALDWELL "K" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 01300 ALDWELL "L" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13664 ALDWELL "M" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15650 ALDWELL K R 40 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18929 ALDWELL M R40 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19586 ALDWELL 0544 SPRABERRY (TREND AREA) APACHE CORPORATION 20128 ALDWELL 0611 E SPRABERRY (TREND AREA) APACHE CORPORATION 20496 ALDWELL, G. L. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01742 ALDWELL, G. L. -37- SPRABERRY (TREND AREA) MCCLURE OIL COMPANY, INC. 02452 ALEXANDER SPECK, SE. (KING) BOWERMAN OIL & GAS, INC. 13511 ALEXANDER SPRABERRY (TREND AREA) APACHE CORPORATION 06874 ALEXANDER "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12059 ALEXANDER "43" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14188 ALEXANDER BIRD 43-6 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 19884 ALEXANDER ROBBIE SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 06383 ALEXANDER SWD SPRABERRY (TREND AREA) ENVIRONMENTAL DSPL SYSTEMS, LLC 19816 ALEXANDER, S. CREE-SYKES (CROSSCUT) ATLAS OPERATING LLC 16203 ALEXIA BUCK TRAP, NORTH (WOLFCAMP) COG OPERATING LLC 14954 ALEXIA SPRABERRY (TREND AREA) COG OPERATING LLC 16670 ALFORD, D. L. BENEDUM (ELLENBURGER) APACHE CORPORATION 07662 ALICE SPRABERRY (TREND AREA) DE3 OPERATING LLC 08040 ALLAR WINTERS (CAPPS) HORIZON WELL SERVICES, INC. 13568 ALLCORN, C. R. ALLCORN (JENNINGS, UP.) P.B. BLUE DOT PROPERTIES 09686 ALLEN "44" WILDCAT EOG RESOURCES, INC. 15180 ALLEN 44 WILDCAT EOG RESOURCES, INC. 19397 ALLEN, RUFUS WINTERS, SW. (GARDNER LIME) J & J SERVICES COMPANY 07146 ALLEN, RUFUS WINTERS, SW. (PALO PINTO) J & J SERVICES COMPANY 11888 ALLEN, RUFUS -B- WINTERS, SW. (PALO PINTO) J & J SERVICES COMPANY 08183 ALLEN, RUFUS -D- WINTERS, SW. (CAPPS) J & J SERVICES COMPANY 08184 ALLEN, RUFUS "B" WINTERS, SW. (GARDNER LIME) J & J SERVICES COMPANY 07274 ALLEN, RUFUS "B" WINTERS, SW (GOEN) J & J SERVICES COMPANY 07352 ALLEN, RUFUS "C" WINTERS, SW. (GARDNER LIME) J & J SERVICES COMPANY 07275 ALLEN, RUFUS "C" WINTERS, SW. (JENNINGS SAND) J & J SERVICES COMPANY 07732 ALLEN, RUFUS "C" WINTERS, SW. (PALO PINTO) J & J SERVICES COMPANY 10077 ALLEN, RUFUS "D" WINTERS, SW. (GARDNER LIME) J & J SERVICES COMPANY 09094 ALLEN, RUFUS "E" WINTERS, SW. (GARDNER LIME) J & J SERVICES COMPANY 09216 ALLISON SPRABERRY (TREND AREA) COG OPERATING LLC 16006 ALLISON SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18587 ALLISON "9" SHEFFIELD, S.E. (STRAWN) URBAN OIL & GAS GROUP, LLC 15284 ALTO DISPOSAL SYSTEM SERIGHT (ELLENBURGER) APPROACH OPERATING LLC 18095 AMACHER, V. T. 76 AMACKER-TIPPETT, SW (WOLFCAMP) HUNT OIL COMPANY 07516 AMACKER AMACKER-TIPPETT, SW (WOLFCAMP) OILFIELD MANAGEMENT, INC. (A) 09581 AMACKER SPRABERRY (TREND AREA) COG OPERATING LLC 15525 AMACKER TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05281 AMACKER TIPPETT, WEST (HUECO) WTG EXPLORATION 05382


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ AMACKER -A- TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05955 AMACKER -B- TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05483 AMACKER -C- TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05731 AMACKER "B" TIPPETT, W. (WOLFCAMP 5050) WTG EXPLORATION 14915 AMACKER "15" SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 11216 AMACKER "46" SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 09845 AMACKER STATE SOUTHWEST MESA (WOLFCAMP) CUSTER & WRIGHT OPERATING, INC. 12924 AMACKER TRUST 18 TIPPETT (LEONARD, LOWER) LEGACY RESERVES OPERATING LP 05894 AMACKER TRUST 37 TIPPETT (CLEAR FORK LO.) APV MCCAMEY LLC 17952 AMACKER 66A SPRABERRY (TREND AREA) COG OPERATING LLC 20833 AMACKER 66B SPRABERRY (TREND AREA) COG OPERATING LLC 20817 AMACKER 66E SPRABERRY (TREND AREA) COG OPERATING LLC 20851 AMACKER 66F SPRABERRY (TREND AREA) COG OPERATING LLC 20848 AMACKER 67A SPRABERRY (TREND AREA) COG OPERATING LLC 21030 AMACKER 67B SPRABERRY (TREND AREA) COG OPERATING LLC 21032 AMACKER 67C SPRABERRY (TREND AREA) COG OPERATING LLC 20882 AMACKER 67D SPRABERRY (TREND AREA) COG OPERATING LLC 20865 AMACKER-HALFF "48" SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 10524 AMACKER-HALFF 81 AMACKER-TIPPETT, SW (WOLFCAMP) HUNT OIL COMPANY 07203 AMACKER-HALFF 81 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18273 AMACKER-TIPPETT "A" POOL UNIT AMACKER-TIPPETT, SW.(WOLFCAMP A) HUNT OIL COMPANY 12591 AMACKER-TRUST 37 TIPPETT (LEONARD, LOWER) APV MCCAMEY LLC 05728 AMACKER, BARNET BARNET-AMACKER (FUSSELMAN) SOUTHWEST ROYALTIES, INC. 04914 AMACKER, BARNETT SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 16582 AMACKER, V. T. CORVETTE (WOLFCAMP) HUNT OIL COMPANY 13086 AMACKER, V. T. 62 AMACKER-TIPPETT (WOLFCAMP) HUNT OIL COMPANY 15810 AMACKER, V. T. "E" -82- AMACKER-TIPPET, SW (9100) HUNT OIL COMPANY 12271 AMACKER, V. T. "62" AMACKER-TIPPETT (DEVONIAN) HUNT OIL COMPANY 13198 AMACKER, V. T. 105 AMACKER-TIPPETT (ELLENBURGER) HUNT OIL COMPANY 00014 AMACKER, V. T. 105 AMACKER-TIPPETT (STRAWN) HUNT OIL COMPANY 05853 AMACKER, V. T. 106 AMACKER-TIPPETT (ELLENBURGER) HUNT OIL COMPANY 00015 AMACKER, V. T. 62 AMACKER-TIPPETT (STRAWN) HUNT OIL COMPANY 00022 AMACKER, V. T. 76 AMACKER-TIPPETT (WOLFCAMP LOWER) HUNT OIL COMPANY 11918 AMACKER, V. T. 77 AMACKER-TIPPET, SW (9100) HUNT OIL COMPANY 08676 AMACKER, V. T., 62 AMACKER-TIPPETT, N. (WOLFCAMP) HUNT OIL COMPANY 05561 AMACKER, V.T. 105 AMACKER-TIPPETT (FUSSELMAN) HUNT OIL COMPANY 15623 AMACKERADAM SPRABERRY (TREND AREA) COG OPERATING LLC 15693 AMACKERALPHA SPRABERRY (TREND AREA) COG OPERATING LLC 15691 AMACKER1NE SPRABERRY (TREND AREA) COG OPERATING LLC 16402 AMACKER1NW SPRABERRY (TREND AREA) COG OPERATING LLC 16466 AMACKER1SW SPRABERRY (TREND AREA) COG OPERATING LLC 16369 AMACKER19NW SPRABERRY (TREND AREA) COG OPERATING LLC 15659 AMACKER19SW SPRABERRY (TREND AREA) COG OPERATING LLC 16150 AMACKER22NE SPRABERRY (TREND AREA) COG OPERATING LLC 16460 AMACKER22SE SPRABERRY (TREND AREA) COG OPERATING LLC 16368 AMACKER23NW SPRABERRY (TREND AREA) COG OPERATING LLC 16633 AMACKER23SE SPRABERRY (TREND AREA) COG OPERATING LLC 16347 AMACKER23SW SPRABERRY (TREND AREA) COG OPERATING LLC 16465 AMACKER24NW SPRABERRY (TREND AREA) COG OPERATING LLC 15661 AMACKER46 SPRABERRY (TREND AREA) COG OPERATING LLC 17877 AMACKER46 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19039


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ AMACKER47 SPRABERRY (TREND AREA) COG OPERATING LLC 16217 AMACKER47 "A" SPRABERRY (TREND AREA) COG OPERATING LLC 16505 AMACKER47 "B" SPRABERRY (TREND AREA) COG OPERATING LLC 17245 AMACKER48 SPRABERRY (TREND AREA) COG OPERATING LLC 16025 AMACKER48 "A" SPRABERRY (TREND AREA) COG OPERATING LLC 16184 AMACKER48 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18852 AMACKER48B UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19070 AMACKER60NW SPRABERRY (TREND AREA) COG OPERATING LLC 15694 AMACKER60SE SPRABERRY (TREND AREA) COG OPERATING LLC 16339 AMACKER60SW SPRABERRY (TREND AREA) COG OPERATING LLC 16420 AMACKER65 SPRABERRY (TREND AREA) COG OPERATING LLC 15603 AMACKER66 SPRABERRY (TREND AREA) COG OPERATING LLC 15604 AMACKER67 SPRABERRY (TREND AREA) COG OPERATING LLC 15542 AMACKER68 SPRABERRY (TREND AREA) COG OPERATING LLC 15586 AMACKER85 SPRABERRY (TREND AREA) COG OPERATING LLC 15684 AMACKER86 SPRABERRY (TREND AREA) COG OPERATING LLC 15710 AMACKER87 SPRABERRY (TREND AREA) COG OPERATING LLC 15548 AMACKER88 SPRABERRY (TREND AREA) COG OPERATING LLC 16004 AMACKER88 "A" SPRABERRY (TREND AREA) COG OPERATING LLC 16473 AMACKER89 SPRABERRY (TREND AREA) COG OPERATING LLC 15727 AMANDA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18476 AMERADA-NEAL "B" BENEDUM (FUSSELMAN) DE3 OPERATING LLC 09844 AMERADA-NEAL "C" BENEDUM (FUSSELMAN) DE3 OPERATING LLC 10164 AMERADA-NEAL "D" BENEDUM (FUSSELMAN) DE3 OPERATING LLC 10165 AMERICAN LEGION SPRABERRY (TREND AREA) XTO ENERGY INC. 04681 AMERICAN REPUBLICS "A" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17161 AMERIGO 901A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19571 AMERIGO 901BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19574 AMERIGO 902A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19733 AMERIGO 902B SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19732 AMERIGO 903A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19796 AMERIGO 903BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19766 ANALISA OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 18437 ANDERGRAM "A" ANDERGRAM (PALO PINTO) MISSION ENERGY INC. 20280 ANDERGRAM UNIT ANDERGRAM (PALO PINTO) TKP PETROLEUM, INC. 09496 ANDERSEN BRADY CREEK (KING SAND) KING-GOEN OIL, LLC 12707 ANDY SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 17644 ANGEL SPIKE, NORTH (PALO PINTO) WINDOW OPERATING CO., THE 17857 ANGELIA SPRABERRY (TREND AREA) COG OPERATING LLC 15657 ANGIE SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16086 ANGUISH SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 03014 ANGUISH -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 03303 ANNE SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16684 ANN29 SPRABERRY (TREND AREA) COG OPERATING LLC 15583 ANSON, LOUISE "A" H-J (STRAWN) GRIZZLY OP OF DELAWARE, LLC 07260 ANSON, LOUISE "B" H-J (STRAWN) GRIZZLY OP OF DELAWARE, LLC 11991 ANSON, LOUISE "B" H-J (STRAWN) SMC OIL & GAS, INC. 13564 ANTELOPE DRAW SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17011 ANTELOPE DRAW D SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17451 ANTELOPE DRAW E SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17446 APPLETON EXOC (980) FLINT ROCK RESOURCES MGMNT, INC. 18885


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ AQUAMARINE BLOCK 4 (DEVONIAN) OGX OPERATING, LLC 18801 AR-7 M. P. I. (ELLENBURGER) THOMPSON, J. CLEO 10672 AR-7 SWD WORLD THOMPSON, J. CLEO 11514 ARA MCCAMEY CARDWELL OIL CORPORATION 09409 ARCO C-M-R (GRAYBURG) BUSTOS, MARTIN OIL 05662 ARCO "AB" 3 WEBB RAY SABINE OIL & GAS CORPORATION 14919 ARCO "85" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 11685 ARCO "9" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 13338 ARCO AB "3" WILDCAT SABINE OIL & GAS CORPORATION 15348 ARCO FEE "19" TIPPETT, W. (WOLFCAMP 5050) OLSEN ENERGY INC. 13741 ARCO FEE "21" TIPPETT, WEST (HUECO) OLSEN ENERGY INC. 15062 ARCO FEE "21" TIPPETT, W. (WOLFCAMP LO.) OLSEN ENERGY INC. 12047 ARCO FEE "21" TIPPETT, W. (WOLFCAMP 5050) OLSEN ENERGY INC. 13228 ARCO FEE "23" TIPPETT (LEONARD, LOWER) OLSEN ENERGY INC. 15891 ARCO HOLT "A" HOLT RANCH (CONSOLIDATED) PRIME OPERATING COMPANY 17455 ARCO-CHILDRESS OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 14287 ARCO-COLEMAN "11" TRIUMPH (WOLFCAMP) HIBERNIA RESOURCES III, LLC 13437 ARCO-CORDOVA-UNION HURDLE KENNEDY, R. R. PRODUCTION, INC. 08228 ARCO-COX "46" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 11198 ARCO-DAVIS SPRABERRY (TREND AREA) DE3 OPERATING LLC 12147 ARCO-MAYER SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 11438 ARCO-RICHARDSON 5 SPRABERRY (TREND AREA) PETROPLEX ENERGY INC. 17606 ARCO-RICHARDSON 5 TRIUMPH (WOLFCAMP) PETROPLEX ENERGY INC. 13310 ARCO-THOMERSON "5" TOE NAIL (STRAWN) CARAWAY OPERATING CO. 11317 ARCO-UNIVERSITY BENEDUM (FUSSELMAN) HIBERNIA RESOURCES III, LLC 10420 ARCO-UPTON SPRABERRY (TREND AREA) KAISER-FRANCIS OIL COMPANY 15896 ARCO-WILSON "29" CAMAR, SW. (STRAWN) ARIES OPERATING, LP 10951 ARCO-17- DOUBLE -R- (CRINOIDAL) ENDEAVOR ENERGY RESOURCES L.P. 06361 ARDOIN VOGELSANG (PALO PINTO) PRENSORUS ENERGY, LLC 18461 AREBALO HUNCH (CANYON) BUSTAMANTE OIL COMPANY 17794 ARLEDGE BLOODWORTH, NE. (6120 CANYON) J V A OPERATING COMPANY, INC. 18145 ARLEDGE -B- ARLEDGE BREITBURN OPERATING L.P. 07793 ARLEDGE, J. W. SANCO, NW. (CANYON SAND) ARGENT PETROLEUM CORPORATION 12203 ARMBRECHT, FRED ZELLER (PALO PINTO 3740) ASE OPERATIONS LLC 04871 ARNETT 44 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19922 ARNETT 44 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17402 ARNETT 44A SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17396 ARNETT 44B ROBLE GRANDE (STRAWN\WOODFORD) HIBERNIA RESOURCES III, LLC 18223 ARNETT 44B SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 18289 ARRO FEE 21 TIPPETT (CLEAR FORK LO.) OLSEN ENERGY INC. 05640 ARROTT BROTHERS "A" BUD JOHNSON (ELLENBURGER) DELRAY OIL, INC. 14328 ASHE, EDWARD J. SUGG (CLEAR FORK) OVINTIV USA INC. 02284 ASHLEY OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 18399 ASHLEY PAUL THOMAS (GOEN) CEDAR OIL COMPANY 16886 ASHTON LINDEMANN (JENNINGS) LANDMASTER PARTNERS, INC. 14910 ASHTON #4 LINDEMANN (JENNINGS) LANDMASTER PARTNERS, INC. 15023 ASHTON, W. A. BENOIT (HOME CREEK) EDMONDSON OIL & GAS 06522 ASHTON, W. A. -A- BENOIT (JENNINGS) BARON ENERGY INC. 06523 ASHTON, W.A. "A" LOCO RICO (DOG BEND) BARON ENERGY INC. 07488 ATKINS #14-11 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19487 ATKINS '14-11' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19245


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ATKINS 10-10B-B SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20938 ATKINS 10-10B-D SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20942 ATKINS 10A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19297 ATKINS 10A-10D-G SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20939 ATKINS 10A-10D-H SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20941 ATKINS 14 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18834 ATKINS 14 AND 11 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19301 ATKINS 14 SWD SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20277 ATKINS 14-11 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19294 ATKINS 15-10A-E SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20591 ATKINS 15-10A-F SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20471 ATKINS 15-10A-H SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20472 ATKINS 23 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20210 ATKINS 23-14-A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20195 ATKINS 23-14-B SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20211 ATKINS 23-23A-G SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20233 ATKINS 23-23A-H SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20231 ATKINSON ATKINSON, NE. (SAN ANGELO) PATNO OIL & GAS COMPANY 03750 ATKINSON IRION, W. (CANYON) BREITBURN OPERATING L.P. 11075 ATKINSON, VERNA BUTTES (STRAWN) FRONT STREET OPERATING, LLC 05563 ATKINSON, VERNA BUTTES NORTH (UPPER CANYON A) FRONT STREET OPERATING, LLC 11377 ATKINSON, W. B. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14210 ATKINSON, W. B. -C- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14077 ATKINSON, W. B. "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14074 ATKINSON, W. B. "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14073 ATKINSON, WEST /SAN ANGELO/ UNIT ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 06080 ATLANTIC MCCAMEY S & B ENTERPRISES, INC. 00922 ATLANTIC REFINING CO. FEE #2 RODMAN-NOEL (GRAYBURG) APV MCCAMEY LLC 06891 ATLANTIC 25 TIPPETT, S. (WOLFCAMP, UP.) OLSEN ENERGY INC. 05581 ATLANTIC 25 TIPPETT, WEST (HUECO) OLSEN ENERGY INC. 05549 ATLANTIC-TIPPETT TIPPETT (TUBB, LOWER) MCDANIEL OIL CO. 04131 ATLAS SWD SPRABERRY (TREND AREA) PERMIAN SOLUTIONS LLC 18792 ATM SPRABERRY (TREND AREA) DE3 OPERATING LLC 13331 AUGUSTUS MCCRAE 22 IRION 163 (CLEAR FORK) FORELAND OPERATING, LLC 18683 AUGUSTUS MCCRAE 22 LIN (WOLFCAMP) FORELAND OPERATING, LLC 18665 AUSTIN 7-6 SPRABERRY (TREND AREA) R 40 EXC HIBERNIA RESOURCES III, LLC 19511 AXXIS EXOC (980) ROCKWOOD RESOURCES INC 17022 B. & O. FARMS BRILEY (PALO PINTO) A - Z OPERATING LLC 09442 BACON 179 MARCHAWN (CLEAR FORK) BRP ENERGY, LLC 15167 BAETHGE MONEY PIT (CAMAR) DE LARIOS, R. V., LTD. 14912 BAGGETT OZONA (CANYON SAND, OIL) EPIC PERMIAN OPERATING, LLC 14083 BAGGETT -20- OZONA, NW. (CANYON) EPIC PERMIAN OPERATING, LLC 04236 BAGGETT "C" OZONA, NW. (CANYON) EPIC PERMIAN OPERATING, LLC 10412 BAGGETT "2" BAGGETT (CLEAR FORK) BEDROCK PRODUCTION, LLC 15257 BAGGETT "29" OZONA, NW. (CANYON) EPIC PERMIAN OPERATING, LLC 06582 BAGGETT OP 1 HOLT RANCH (CONSOLIDATED) LARIAT RESOURCES, LLC 18425 BAGGETT OP 3 SPRABERRY (TREND AREA) LARIAT RESOURCES, LLC 18097 BAGGETT OP 5 HOLT RANCH (CONSOLIDATED) LARIAT RESOURCES, LLC 18315 BAGGETT OP 5 SPRABERRY (TREND AREA) LARIAT RESOURCES, LLC 17808 BAGGETT 29 LIN (WOLFCAMP) EPIC PERMIAN OPERATING, LLC 19324 BAGGETT 42 BAGGETT (GLORIETA) THOMPSON, J. CLEO 15176


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BAILEY COCKATOO (GARDNER) DEL MAR ENERGY, INC. 17934 BAILEY COCKATOO (GARDNER) 3-D OIL & GAS 18142 BAILEY GWYN (CANYON) DISCOVERY OPERATING, INC. 07865 BAILEY 'A' COCKATOO (GARDNER) DEL MAR ENERGY, INC. 18883 BAILEY A SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20969 BAILEY B SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20970 BAILEY C SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20989 BAILEY, JAMES E. COCKATOO (GARDNER) HORIZON WELL SERVICES, INC. 07902 BAKER BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 10741 BAKER HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17909 BAKER WINTERS (HOME CREEK) QUAIL WELL SERVICE, INC. 08867 BAKER -A- MCCAMEY XOG OPERATING LLC 00948 BAKER -B- MCCAMEY XOG OPERATING LLC 00949 BAKER -C- MCCAMEY XOG OPERATING LLC 00950 BAKER -D- MCCAMEY XOG OPERATING LLC 00951 BAKER -1148- BAKER RANCH (CANYON) OXY USA INC. 11697 BAKER "A" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11305 BAKER "A" HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17260 BAKER "B" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11306 BAKER "C" HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17437 BAKER "L", M.L. MCCAMEY XOG OPERATING LLC 00868 BAKER "5" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 10776 BAKER "8" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 16782 BAKER B HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17263 BAKER-ELDER UNIT MCCAMEY XOG OPERATING LLC 03594 BAKER, M. L. MCCAMEY XOG OPERATING LLC 00914 BAKER, M. L. (00952) MCCAMEY XOG OPERATING LLC 00952 BAKER, MARIE BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 07502 BAKER, MARIE "1217" BAKER RANCH (CANYON) UNIT PETROLEUM COMPANY 08005 BAKER, MARIE NOELKE BAKER RANCH (CANYON) IRION CORPORATION, THE 11384 BAKER,R. BALLINGER, WEST (PALO PINTO) CONCHO OILFIELD SERV & OPER CO. 09760 BALES, W. D. BALLINGER (PALO PINTO) PIONEER ENERGY CORPORATION 08439 BALINESE HONDO RAINBOW (FUSSELMAN) LEGACY RESERVES OPERATING LP 14388 BALKE-STOKES BALLINGER, WEST (CAPPS) C & A ENTERPRISES 10478 BALL PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 10317 BALL SPRABERRY (TREND AREA) ARES ENERGY, LTD. 19053 BALL -A- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05208 BALL -B- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05220 BALL -C- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05263 BALL -D- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05266 BALL AL01 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20536 BALL AL02 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20539 BALL AL03 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20538 BALL AL04 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20537 BALL 678 WRIGHT-FEATHERS, W. (SAN ANGELO) HANNATHON PETROLEUM, LLC 17556 BALL, FRED PRICE (GRAYBURG) ATLAS OPERATING LLC 10529 BALL, FRED SPRABERRY (TREND AREA) ATLAS OPERATING LLC 08819 BALL, FRED, -A- SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 05071 BALLENGER SHIRK (GRAYBURG) BUSTOS, MARTIN OIL 09501 BALLEW 106 SENECA (WOLFCAMP) TOC ENERGY RESOURCES, LLC 15105 BANDIT SPRABERRY (TREND AREA) R 40 EXC HEADINGTON ENERGY PARTNERS, LLC 20921


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BANKHEAD BENEDUM (SPRABERRY) NORDSTRAND ENGINEERING, INC. 10148 BANKHEAD "A" BENEDUM (SPRABERRY) NORDSTRAND ENGINEERING, INC. 10913 BANKHEAD "B" BENEDUM (SPRABERRY) NORDSTRAND ENGINEERING, INC. 11193 BAR A GWYN (CANYON) DISCOVERY OPERATING, INC. 14442 BARBARA SPRABERRY (TREND AREA) COG OPERATING LLC 15750 BARBARA "A" SPRABERRY (TREND AREA) COG OPERATING LLC 15975 BARBARA147 SPRABERRY (TREND AREA) COG OPERATING LLC 18521 BARBARA147 "A" SPRABERRY (TREND AREA) COG OPERATING LLC 16316 BARBEE SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17283 BARBEE-D- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17422 BARBEE-F- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18071 BARKLEY SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 16655 BARNET-AMACKER AMACKER-TIPPETT (DEVONIAN) SOUTHWEST ROYALTIES, INC. 04843 BARNET-AMACKER AMACKER-TIPPETT (STRAWN) SOUTHWEST ROYALTIES, INC. 15706 BARNET, ROSA -A- KING MOUNTAIN, S. (8200) GRIZZLY OP OF DELAWARE, LLC 04082 BARNET, ROSA -B- KING MOUNTAIN, S. (8200) XOG OPERATING LLC 04119 BARNET, ROSA "A" KING MT. (STRAWN) GRIZZLY OP OF DELAWARE, LLC 07474 BARNET, ROSA H. -B- BENEDUM (SPRABERRY) LINDENMUTH & ASSOCIATES, INC. 00172 BARNET, ROSA H. -D- KING MOUNTAIN (DEVONIAN) OSBORN HEIRS COMPANY 14953 BARNET, ROSA H. -D- KING MOUNTAIN (ELLENBURGER) OSBORN HEIRS COMPANY 00797 BARNET, ROSA H. -D- KING MT. (STRAWN) OSBORN HEIRS COMPANY 14832 BARNETT ELKSON (CROSS CUT SAND) VIATHON HYDROCARBONS, INC. 12039 BARNETT "21" AMACKER-TIPPETT (WOLFCAMP) SUMMIT PETROLEUM LLC 14995 BARNETT "21" AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 14871 BARNETT-AMACKER AMACKER-TIPPETT (WOLFCAMP) SOUTHWEST ROYALTIES, INC. 05929 BARNHART SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 19784 BARNHART (ELLENBURGER)UNIT BARNHART GOLDRUS/PERMIAN AIR, LLC 15018 BARNHART N98 SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 20400 BARNHART SWD LIN (WOLFCAMP) ON POINT OILFIELD OPERATIONS LLC 18132 BARNHART 103S101 SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 20529 BARNHART 60N62 SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 19887 BARNHART 60N65 SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 20790 BARNHART 61S59 SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 19949 BARNHART 687 SWD LAVAN (WOLFCAMP) NGL WATER SOLUTIONS PERMIAN, LLC 18661 BARNHART 76N78 SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 19619 BARNHART 77S75 SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 19661 BARNHART 8N117 SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 20834 BARRETT "19" SPRABERRY (TREND AREA) HUNT OIL COMPANY 11776 BARRETT SWD SPRABERRY (TREND AREA) APACHE CORPORATION 09802 BARROW CODY BELL (CANYON) OXY USA INC. 13448 BARROW CODY BELL (CANYON D-OIL) TXP, INCORPORATED 05620 BARWEST SPRABERRY (TREND AREA) ARCH OIL & GAS, LLC 12696 BASHAM LETCHER (LOWER COOK SAND) ELCO OIL & GAS, INC. 12815 BASIC SWD -15- PEGASUS, S. (BEND) BASIC ENERGY SERVICES, L.P. 18184 BAST '32 AND 41' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20014 BAST '33-40' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19818 BAST '34-39' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19789 BAST 32 AND 41 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20018 BAST 33 AND 40 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19462 BAST 33-40 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19118 BAST 34 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18907


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BAST 34 AND 39 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19871 BAST 34-39 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19195 BATES #43-42 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19600 BATES '31-30' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19334 BATES '43-42' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19575 BATES 31-30 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19314 BATES 31-43 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19570 BATES 43 AND 42 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19614 BATES 43-42 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19783 BATES 43B-31-B SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20535 BATES 43B-31-D SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20531 BATES 6 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19582 BAUER DICK RICHARDSON (PALO PINTO,LI.) DAKOTA RESOURCES, INC. (I) 11247 BAUGH BAUGH (STRAWN) CHISHOLM OPERATING, INC. 19163 BAUGH 9 BAUGH (STRAWN) CHISHOLM OPERATING, INC. 19250 BEALL-FRANKE UNIT MILLERSVIEW, SW. (CAMAR SD.) CAZAR ENERGY INC 18335 BEAM, THELMA SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08999 BEAN PIKES PEAK DRAW (CANYON) REMUDA OPERATING COMPANY 11867 BEAN PURE-BEAN, SOUTH KSABE ENERGY PARTNERS, LLC 04385 BEAN CONSOLIDATED WILDCAT REMUDA OPERATING COMPANY 16937 BEAN CONSOLIDATED PURE-BEAN KSABE ENERGY PARTNERS, LLC 01212 BEAN CONSOLIDATED PURE-BEAN, SOUTH KSABE ENERGY PARTNERS, LLC 18540 BEAN RANCH LIN (WOLFCAMP) HENRY RESOURCES LLC 19089 BEAN RANCH UV-34 LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 17937 BEAN 12 JOE BEAN (GLORIETA) THOMPSON, J. CLEO 15336 BEAN, GEORGE WYATT KDM PRODUCTION CO 02256 BEAN, JOE PURE-BEAN, SOUTH LEWIS, T. K. 07462 BEAN, JOE F,NORTH PIKES PEAK DRAW (CANYON) MCGUIRE, JOE 09602 BEAN, JOE F,SOUTH PIKES PEAK DRAW (CANYON) MCGUIRE, JOE 11703 BEAN, JOE 47-1 PIKES PEAK DRAW (ELLENBURGER) WEST TEXAS OIL AND GAS OPER.,INC 11131 BEARCAT 4 BALLINGER (PALO PINTO) EASTERN SHELF OPERATING, LLC 19068 BEARCE GWYN, WEST (CANYON) DISCOVERY OPERATING, INC. 08872 BECTON SPRABERRY (TREND AREA) CLEAR WATER INC. 06951 BECTON, CLAUDE SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 06868 BECTON, CLAUDE SUGG (CLEAR FORK) TRACKER RESOURCE DEV III, LLC 01961 BEE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16090 BELK CHAETETES (GOEN) WINDOW OPERATING CO., THE 13739 BELK NORTON, E. (GARDNER SAND) WINDOW OPERATING CO., THE 18552 BELK 'A' UNIT DORMAN, WEST (GOEN) GOLDEN OIL AND RANCH, LLC 20403 BELK, H. A. VOGELSANG (PALO PINTO) WINDOW OPERATING CO., THE 13177 BELL, C. M. AMACKER-TIPPETT (LEONARD, LOWER) BELL, CODY, JR. 04068 BELL, C. M. CODY BELL (CANYON) DIAMOND S ENERGY COMPANY 15546 BELL, CODY "54" TRIUMPH (WOLFCAMP) PETROPLEX ENERGY INC. 13666 BELLOWS "57" PROBANDT (CANYON) PIONEER NATURAL RES. USA, INC. 16194 BENEDUM /SPRABERRY/ UNIT BENEDUM (SPRABERRY) DE3 OPERATING LLC 05204 BENEDUM PUMP STATION NGL STORAGE BENEDUM (SPRABERRY) PHILLIPS 66 PIPELINE LLC 06965 BENEDUM 3-6 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19947 BENGE JANOR (RANGER) MGM OIL & GAS INC. 10214 BENNETT SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01486 BENNETT BB2-6 (AW) LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19006 BENNETT BB2-6(AW) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20543


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BENNIE 4342 LIN (WOLFCAMP) APACHE CORPORATION 18019 BERDA SPRABERRY (TREND AREA) COG OPERATING LLC 15961 BERGER NEVA, WEST (CANYON) MARTIN, JIMMY INC 16030 BERGER NEVA, WEST (CANYON) PARAGON OIL & GAS, LLC 11480 BEST SWD SPRABERRY (TREND AREA) RAINS ENERGY, LLC 18743 BEST UNIVERSITY "5" BEST (ELLENBURGER) SAHARA OPERATING COMPANY 13533 BETTY RUTH SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16220 BETTYLOU SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16325 BEVERLY SPRABERRY (TREND AREA) COG OPERATING LLC 15442 BEVERLY "A" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16877 BIDDIX WINTERS, NORTH (CISCO 3020) LONE STAR PRODUCTION 16101 BIG LAKE SWD JOHN SCOTT (GRAYBURG) PINNERGY, LTD. 17973 BIG LAKE UNIT JOHN SCOTT (GRAYBURG) FLOYD, TIMBER INC. 04745 BIG LAKE 225 SWD PRICE (GRAYBURG) SELECT ENERGY SERVICES, LLC 18169 BIG STATE -10- SIMPSON HOOVER PETROLEUM COMPANY, LLC 07809 BIG STATE "A" PONLAW (SOMA) HOOVER PETROLEUM COMPANY, LLC 14524 BIG STATE "10-10" HOOVER HOOVER PETROLEUM COMPANY, LLC 11431 BIG STATE "2A" SIMPSON HOOVER PETROLEUM COMPANY, LLC 09225 BIG STATE RANCH SHANNON (SAN ANDRES) HOOVER PETROLEUM COMPANY, LLC 12842 BIG STATE RANCH SHANNON (SAN ANDRES) SUNMARK SERVICES CORPORATION 09140 BIG STATE RANCH -B- SHANNON (SAN ANDRES) SUNMARK SERVICES CORPORATION 12843 BIG STATE RANCH -2- SIMPSON HOOVER PETROLEUM COMPANY, LLC 12276 BIG STATE RANCH "10" SHANNON (SAN ANDRES) HOOVER PETROLEUM COMPANY, LLC 11388 BIG STATE RANCH "2" SHANNON (SAN ANDRES) HOOVER PETROLEUM COMPANY, LLC 07649 BIG STATE RANCH "2A" SIMPSON HOOVER PETROLEUM COMPANY, LLC 12296 BIG STATE RANCH "2B" SIMPSON HOOVER PETROLEUM COMPANY, LLC 12655 BIG STATE RANCH "4" SHANNON (SAN ANDRES) HOOVER PETROLEUM COMPANY, LLC 08835 BIG STATE RANCH INC. SHANNON (SAN ANDRES) HOOVER PETROLEUM COMPANY, LLC 07464 BIG STATE RANCH 10-7R SIMPSON HOOVER PETROLEUM COMPANY, LLC 12818 BIG STATE RANCH 10C SIMPSON HOOVER PETROLEUM COMPANY, LLC 09544 BIG STATE RANCH 2 "EF" SIMPSON HOOVER PETROLEUM COMPANY, LLC 09435 BIG STATE 10A SIMPSON HOOVER PETROLEUM COMPANY, LLC 07883 BIG STATE 10B SIMPSON HOOVER PETROLEUM COMPANY, LLC 08019 BIG STATE 10C SIMPSON HOOVER PETROLEUM COMPANY, LLC 08219 BIG STATE 11 SIMPSON HOOVER PETROLEUM COMPANY, LLC 08020 BIG STATE 18-2 SIMPSON HOOVER PETROLEUM COMPANY, LLC 12315 BIG STATE 2 MCMILLAN SIMPSON HOOVER PETROLEUM COMPANY, LLC 08309 BIG STATE 2D SIMPSON HOOVER PETROLEUM COMPANY, LLC 09449 BIG STATE 2M SIMPSON HOOVER PETROLEUM COMPANY, LLC 08865 BIG STATE 7-10 SIMPSON HOOVER PETROLEUM COMPANY, LLC 10773 BIG TREE A SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 20831 BIG TREE B SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 20532 BIGBY-NEELY SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13960 BIGBY, W. A. "B" SPRABERRY (TREND AREA CL. FK.) PIONEER NATURAL RES. USA, INC. 08044 BILL SIMS PAINT ROCK (STRAWN LIME) ANTLE OPERATING, INC. 18436 BILLIMEIR HATCHELL (CAPPS) SHOCO PRODUCTION, L.P. 19979 BILLIMEIR WINTERS, SW. (GARDNER SD., LO.) SHOCO PRODUCTION LLC 18910 BILLUPS "509" SYKES,WEST(GOEN) S.B. STREET OPERATING, INC. 16069 BINGHAM SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13234 BINGHAM "22" H.W. CLARK (CANYON SD) TXP, INCORPORATED 16688 BINGHAM "22" LUCKY MAG (CONSOLIDATED) TXP, INCORPORATED 17030


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BINGHAM SWD SPRABERRY (TREND AREA) ENVIRONMENTAL DSPL SYSTEMS, LLC 14267 BIRD SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06849 BIRD SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09936 BIRD "13" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15291 BIRD "34" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 03534 BIRD 1-34A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11940 BIRD 13-14 G SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20120 BIRD 13-14 H SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20121 BIRD, -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01774 BIRD, CHARLES "B" SPRABERRY (TREND AREA) DE3 OPERATING LLC 13760 BIRD, CHARLES "C" SPRABERRY (TREND AREA) DE3 OPERATING LLC 13764 BIRD, CHARLES "D" SPRABERRY (TREND AREA) DE3 OPERATING LLC 13774 BIRD, CHARLES "6" SPRABERRY (TREND AREA) DE3 OPERATING LLC 13763 BIRD, F. A. SPRABERRY (TREND AREA) CRONE OIL COMPANY 02687 BIRD, F. A. SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 01464 BIRD, F. A. -39- SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 01574 BIRD, F. A. "A" SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 11121 BIRD, F. A. EST. -A- SPRABERRY (TREND AREA) BIRD E&P LLC 02835 BIRD, F. A. ESTATE SPRABERRY (TREND AREA) BIRD E&P LLC 02547 BIRD, F. A. ESTATE -B- SPRABERRY (TREND AREA) BIRD E&P LLC 03526 BIRD, F. A. ESTATE "E" SPRABERRY (TREND AREA) BIRD E&P LLC 13948 BIRD, F. A. ESTATE "F" SPRABERRY (TREND AREA) BIRD E&P LLC 09691 BIRD, I. A. "D" MEADOW CREEK (CANYON) COLO EXPLORATION COMPANY, INC. 08375 BIRD"C" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 03515 BISHOP - BIEMER EXOC (980) OTEX LLC 06956 BISHOP, A. J. SPIKE, NORTH (PALO PINTO) RAYCO OPERATING, INC. 08434 BISHOP, CHARLES H. SHANNON (SAN ANDRES) HOOVER PETROLEUM COMPANY, LLC 02672 BITTER END SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17834 BLACK DOG 4231 A SPRABERRY (TREND AREA) APACHE CORPORATION 20248 BLACK DOG 4231 B SPRABERRY (TREND AREA) APACHE CORPORATION 20269 BLACK DOG 4231 C SPRABERRY (TREND AREA) APACHE CORPORATION 20268 BLACK DOG 4231 D SPRABERRY (TREND AREA) APACHE CORPORATION 20270 BLACK DOG 4231 E SPRABERRY (TREND AREA) APACHE CORPORATION 20249 BLACK DOG 4231 F SPRABERRY (TREND AREA) APACHE CORPORATION 20254 BLACK MOUNTAIN 227 SWD JOHN SCOTT (GRAYBURG) NGL WATER SOLUTIONS PERMIAN, LLC 17828 BLACKWELL PEGASUS (CONSOLIDATED) COG OPERATING LLC 17165 BLACKWOOD & NICHOLS SPRABERRY (TREND AREA) RELIANCE ENERGY, INC. 01702 BLAIR FUZZY CREEK (GOEN) CONCHO OILFIELD SERV & OPER CO. 09842 BLANKS, W. C. JAMESON (STRAWN) MORIAH OPERATING,LLC 03535 BLAYLOCK, ARLEY LONESOME DOVE II (KING SAND) BOWERMAN OIL & GAS, INC. 12740 BLAZE SIMPSON BRODY OIL & GAS SERVICES, INC. 09054 BLAZE "G" SIMPSON HOOVER PETROLEUM COMPANY, LLC 09180 BLOODWORTH NE CANYON UNIT BLOODWORTH, NE. (5750 CANYON) J V A OPERATING COMPANY, INC. 05688 BLOODWORTH 139 FAWCETT (WOLFCAMP) UPP OPERATING, LLC 18336 BLOODWORTH 139 SAWYER (LEONARD) UPP OPERATING, LLC 17225 BLOODWORTH, H. L. BLOODWORTH (5700) FDL OPERATING, LLC 00262 BLOSSOM VALLIANT (STRAWN) HENNICO 07646 BLOSSOM-A- VALLIANT (ELLEN.) HENNICO 06346 BLOXOM W. RICHARDSON, E. (WLFC.) THOMPSON, J. CLEO 13795 BLOXOM "18" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17922 BLOXOM "20" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17497


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BLOXOM A RE 1 193 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19231 BLOXOM B RE 1 193 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19232 BLOXOM RE 1 193 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19284 BLOXOM SOUTH 210-219 ALLOC 02 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20468 BLOXOM SOUTH 210-219 ALLOC 13 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20467 BLOXOM SOUTH 210-219 ALLOC 23 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20774 BLOXOM SOUTH 210-219 ALLOC 33 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20821 BLOXOM 47 AMACKER-TIPPETT (DEVONIAN) EOG RESOURCES, INC. 17717 BLOXOM-MAITINO "3" SPRABERRY (TREND AREA) PETROPLEX ENERGY INC. 17579 BLOXOM-MAITINO "3" TRIUMPH (WOLFCAMP) PETROPLEX ENERGY INC. 13283 BOBBIE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16794 BOBBY MEYERS COCKATOO (GARDNER) DEL MAR ENERGY, INC. 18469 BODEGA LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18333 BODEGA SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20544 BODINE "128" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15235 BODINE "88" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15364 BODINE A 174-15 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19497 BODINE A 174-15 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19498 BODINE A 174-15 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19500 BODINE A 174-173 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20455 BODINE A 174-173 (ALLOC-B) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 19098 BODINE A 174-173 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19040 BODINE-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17043 BODINE-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17577 BOLD FLINT HILL '69' SPRABERRY (TREND AREA) TRIPLE CROWN RESOURCES, LLC 18780 BOLD FLINT HILL "69" ANDREW A. (CANYON) TRIPLE CROWN RESOURCES, LLC 17353 BOMBER SPRABERRY (TREND AREA) OVINTIV USA INC. 16810 BONFIRE-PEARSON PURE-BEAN, SOUTH BONFIRE OPERATING LLC 18734 BONNETT, NORMAN N. LENA CLAYTON (SERRATT) TEXAS INTERNATIONAL RESOURCE LLC 06883 BOOK SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14228 BOOK SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17289 BOOK A 190-28 (ALLOC-B) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 19155 BOOK A 190-28 (ALLOC-D) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 19726 BOOK 190-28 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18690 BOOK 190-28 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18691 BOOK, BEN "8" FWB (CANYON SAND-UPPER) ATLAS OPERATING LLC 13804 BOOK, BEN SOUTH FWB (CANYON SAND) ATLAS OPERATING LLC 12010 BOOTHE BARNHART, NE. (GRAYBURG) REMUDA OPERATING COMPANY 10624 BOOTHE BARNHART, NE. (GRAYBURG) TEJAS JACK SALES, INC. 08051 BOOTHE 236-5 ALLOC 23 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20845 BOOTHE 236-5 ALLOC 27 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20846 BOOTHE 236-6 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19802 BOOTHE 236-6 ALLOC 03 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20310 BOOTHE 236-6 ALLOC 04 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20332 BOOTHE 236-6 ALLOC 05 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20313 BOOTHE 236-6 ALLOC 06 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20315 BOOTHE 236-6 ALLOC 07 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20319 BOOTHE, T. B. BARNHART (GRAYBURG) RUSSELL OPERATING COMPANY, LLC 08408 BOREN PAN AM HUGHES "C" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11816 BOREN, PAN-AM HUGHES SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04823 BOREN, PAN-AM HUGHES -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04862


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BOTT AMACKER-TIPPETT, SW (WOLFCAMP) HUNT OIL COMPANY 10287 BOTT-WARREN AMACKER-TIPPETT (WOLFCAMP) HUNT OIL COMPANY 13479 BOULWARE H-J (CROSSCUT) BYRD OPERATING COMPANY 17042 BOULWARE H-J (STRAWN) SMC OIL & GAS, INC. 13563 BOUSCAREN NOELKE BUSTOS, MARTIN OIL 01061 BOUSCAREN -A- NOELKE SCHNEIDER OIL AND GAS 01062 BOUSCAREN UNIT 0257 FREEDOM (RUBY LIMESTONE) MLC OPERATING, LP 16401 BOUSCAREN UNIT 0457 FREEDOM (RUBY LIMESTONE) MLC OPERATING, LP 16455 BOUSCAREN 25 SPRABERRY (TREND AREA) PAGE OIL & GAS, LLC 18080 BOUSCAREN 43 SPRABERRY (TREND AREA) PAGE OIL & GAS, LLC 17816 BOUSCAREN, P. ET AL "J" BOUSCAREN (ELLEN) MLC OPERATING, LP 06542 BOUSCAREN, P. ET AL "J" BOUSCAREN (WOLFCAMP) MLC OPERATING, LP 12599 BOWEN NIPPLE PEAK, SOUTH (ELLENBURGER) GUNGOLL, CARL E. EXPLORATION LLC 19860 BOWNDS, WALLACE URBAN (MILES) UPSTREAM PROPERTIES, LLC 07790 BOY SCOUTS OF AMERICA BSA (CANYON) J & J WELL SERVICE, INC. 11147 BOY SCOUTS OF AMERICA BSA (STRAWN SAND) MAGNUM OILFIELD SERVICES LLC 10895 BOYD KIRKHAM (CADDO) MAGNET OIL LP 17786 BOYD SPRABERRY (TREND AREA) APACHE CORPORATION 20835 BOYD SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14178 BOYD SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 01692 BOYD -32- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14179 BOYD "A" SPRABERRY (TREND AREA) BRP ENERGY, LLC 14034 BOYD, O. F. -A- SPRABERRY (TREND AREA) APACHE CORPORATION 13912 BOYD, O. F. "16" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 10677 BOYD, O. F. "16B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14264 BOYD, O. F. "42" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14248 BOYD, O. F. 31 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14249 BOYER CURRY & SEALS "D" R. L. G. (CANYON,LOWER) WRAGE ENERGY SERVICES LLC 08838 BOYER, CURRY,& SEALS "A" S.S.R. (CANYON, UPPER) WRAGE ENERGY SERVICES LLC 09275 BOYLES SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 13952 BRADEN SPRABERRY (TREND AREA) DE3 OPERATING LLC 09579 BRADEN "C" SPRABERRY (TREND AREA) DE3 OPERATING LLC 10058 BRADEN, HARVEY SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 13997 BRANCH SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10856 BRANCH SPRABERRY (TREND AREA) TUCKER, GEORGE C. 05342 BRANCH -A- SPRABERRY (TREND AREA) TUCKER, GEORGE C. 05352 BRANCH -B- TUCKER (CANYON) ARKLAND PRODUCING CO., INC. 07450 BRANCH A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10849 BRANCH, ED SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 09387 BRANDENBERGER MENARD, W. (CADDO) WILLOWBEND INVESTMENTS, INC. 09280 BRANDENBERGER MENARD, W. (HARKEY) WILLOWBEND INVESTMENTS, INC. 09996 BRANDENBERGER "A" MENARD, W. (HARKEY) WILLOWBEND INVESTMENTS, INC. 11354 BRANDENBERGER ESTATE MENARD, W. (PALO PINTO) WILLOWBEND INVESTMENTS, INC. 09590 BRANNAN, J. JAMESON, SE. (STRAWN) FDL OPERATING, LLC 06513 BREDEMEYER "A" H F B (KING SAND) LONE STAR PRODUCTION 12407 BREDEMEYER, H. F. H F B (KING SAND) LONE STAR PRODUCTION 06262 BRENDA SPRABERRY (TREND AREA) SM ENERGY COMPANY 15815 BRENDA DORCUS (SA) A SPRABERRY (TREND AREA) SM ENERGY COMPANY 19505 BRENDA DORCUS (SA) B SPRABERRY (TREND AREA) SM ENERGY COMPANY 19507 BRENDA DORCUS (SA) C SPRABERRY (TREND AREA) SM ENERGY COMPANY 19506 BRENDA KATHRYN (SA) AI SPRABERRY (TREND AREA) SM ENERGY COMPANY 19666


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BRENDA KATHRYN (SA) AU SPRABERRY (TREND AREA) SM ENERGY COMPANY 19665 BRENDA KATHRYN (SA) K SPRABERRY (TREND AREA) SM ENERGY COMPANY 19667 BRENDA KATHRYN (SA) R SPRABERRY (TREND AREA) SM ENERGY COMPANY 19751 BREVARD OAKES (GOEN LIME) J2 PETROLEUM LLC 14980 BREVARD-TYREE OAKES (GOEN LIME) J2 PETROLEUM LLC 15164 BREVARD, FLAY BEDDO DELTEX MINERALS INC. 09885 BRIDGES, L. A. BRANCH, SOUTH (TANNEHILL) P,B&B OPERATING INC. 12908 BRIDGES, L. A. EAST 1/2 BRANCH, SOUTH (TANNEHILL) P,B&B OPERATING INC. 14490 BRIGHT SIMPSON BRIGHT OIL COMPANY 10201 BRIGHT #2 SIMPSON BRIGHT OIL COMPANY 10614 BRIGHT #3 SIMPSON BRIGHT OIL COMPANY 11409 BRIGHT, H.S. MRS. "AA" CREE-SYKES (GARDNER, UPPER) MILLICAN OIL LLC 10190 BRILEY DICK RICHARDSON (PALO PINTO,LI.) 3-D OIL & GAS 16370 BRILEY-BREDEMEYER WINTERS (CAPPS) HORIZON WELL SERVICES, INC. 13405 BRITAIN SPRABERRY (TREND AREA) SM ENERGY COMPANY 15481 BRONTE CAMBRIAN UNIT BRONTE (CAMBRIAN) BOAZ ENERGY II OPERATING, LLC 02473 BRONTE CAPPS UNIT BRONTE (CAPPS LIME) BOAZ ENERGY II OPERATING, LLC 02474 BRONTE PALO PINTO UNIT BRONTE BOAZ ENERGY II OPERATING, LLC 02472 BROOK A-10 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20297 BROOK A-2 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19935 BROOK A-2E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19466 BROOK A-4 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18868 BROOK A-5B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19689 BROOK A-5C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19683 BROOK A-5D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19736 BROOK A-5E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19739 BROOK A-5F SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19781 BROOK A-5G SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19767 BROOK A-9 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19176 BROOK B-11S SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20173 BROOK B-11T SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20160 BROOK B-12S SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20379 BROOK B-12T SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20480 BROOK B-12U SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20396 BROOK B-13A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19303 BROOK B-13B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19342 BROOK B-13C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19355 BROOK B-17A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19302 BROOK B-17B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19350 BROOK B-17C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19373 BROOK B-17P SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20142 BROOK B-17Q SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20124 BROOK D 25 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19659 BROOK D-E3A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20553 BROOK D-E3B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20527 BROOK D-E3C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20488 BROOK D-E4A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20174 BROOK D-E4B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20162 BROOK D-E4C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20163 BROOK D-E5A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20242 BROOK D-E5B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20225


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BROOK D-E5C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20232 BROOK D-NW4D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20958 BROOK D-NW4E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20966 BROOK D-NW4F SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 21033 BROOK D-W17A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20470 BROOK D-W17B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20508 BROOK D-W17C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20502 BROOK D-15B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19653 BROOK D-15C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19822 BROOK D-15D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19755 BROOK D-15E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19815 BROOK D-15F SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19834 BROOK D-15G SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19861 BROOK D-15I SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20100 BROOK D-15J SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20123 BROOK D-23N SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19206 BROOK D-23S SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19175 BROOK D-31G SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20281 BROOK D-31H SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20272 BROOK D-31I SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20282 BROOK K-2C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19330 BROOK K-2D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19353 BROOK K-2E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19375 BROOK M-1A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19253 BROOK M-1B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19247 BROOK M-1C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19248 BROOK M-1D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20066 BROOK N-11B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19207 BROOK N-13D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20273 BROOK N-13E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20082 BROOK N-13F SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20985 BROOK N-13P SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20045 BROOK N-13Q SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20074 BROOK N-13R SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20046 BROOK N-20A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19249 BROOK N-20B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19259 BROOK N-20C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19260 BROOK N-20E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20088 BROOK N-4 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20019 BROOK N-5 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19177 BROOK N-7C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19624 BROOK N-7D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19628 BROOK N-7E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19583 BROOK N-7F SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19599 BROOK N-7G SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19630 BROOK N-7H SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19615 BROOK N-7I SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19629 BROOK N-7J SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19587 BROOK N-7K SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19620 BROOK O-2 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18903 BROOK O-2A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19237


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BROOK O-2B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19238 BROOK O-2M SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20071 BROOK O-2N SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20059 BROOK O-2P SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 21012 BROOK O-2Q SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 21005 BROOK O-3 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18967 BROOK Y-1A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19131 BROOK Y-1B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19132 BROOK Y-6C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19295 BROOK Y-6D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19286 BROOK Y-6E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19318 BROOK Y-6F SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19287 BROOK-FUNKHOUSER 19A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20501 BROOK-FUNKHOUSER 19B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20479 BROOK-FUNKHOUSER 19C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20503 BROOKLYN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18459 BROOKS '11 ' ZAN-ZAN (MID. CANYON) COMSTOCK ENERGY, LLC 13052 BROOKS "A" BROOKS (CANYON K) ARCH OIL & GAS, LLC 11219 BROOKS "A" JOE BROOKS (WOLFCAMP 4600) ARCH OIL & GAS, LLC 14733 BROOKS "C" MERTZON (CLEAR FORK) COMSTOCK ENERGY, LLC 14687 BROOKS "10" ZAN-ZAN (MID. CANYON) COMSTOCK ENERGY, LLC 12929 BROOKS "11" BROOKS (CANYON K) COMSTOCK ENERGY, LLC 14940 BROOKS "11" BUTLER (CANYON) OXY USA INC. 15086 BROOKS "17" ZAN-ZAN (MID. CANYON) COMSTOCK ENERGY, LLC 13225 BROOKS UNIT BROOKS (SAN ANGELO) FRATELLI EXPLORATION, L.P. 04280 BROOKS UNIT BYLER (SAN ANGELO) FRATELLI EXPLORATION, L.P. 11420 BROOKS 3 BROOKS (CANYON K) IRION CORPORATION, THE 14961 BROOKS, ANNIE MAY HULLDALE (PENNSYLVANIAN REEF) MAYJAC I, LLC 00595 BROOKS, LILLIAN BROOKS, ET AL MIM. NW (SAN ANGELO) BOMAR OPERATING CO., LC 07895 BROSEH SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06298 BROSEH -B- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06701 BROSEH-A- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06349 BROWN COCKATOO (GARDNER) WINDOW OPERATING CO., THE 18539 BROWN SPRABERRY (TREND AREA) CAMBRIAN MANAGEMENT, LTD. 15856 BROWN SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 17341 BROWN TRITON (CANYON SAND) GOLDEN OIL AND RANCH, LLC 14801 BROWN -E- K. W. B. (STRAWN) BARROW-SHAVER RESOURCES CO. 10354 BROWN 'A' COCKATOO (GARDNER) WINDOW OPERATING CO., THE 18721 BROWN "A" SHEEP MOUNTAIN (CONSOLIDATED) CAMBRIAN MANAGEMENT, LTD. 16135 BROWN "1203" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08075 BROWN "169" JAMESON (STRAWN) COPPER RIDGE RESOURCES LLC 12213 BROWN-MURPHEY SPRABERRY (TREND AREA) APACHE CORPORATION 11813 BROWN, PHILLIP JAMESON PIMA ENERGY, LLC 07164 BRUCHMILLER, R. J. PAINT ROCK, W. (GOEN D) VIATHON HYDROCARBONS, INC. 12125 BRUNSON 'C' NDUGU (CROSS-CUT) BOAZ ENERGY II OPERATING, LLC 18102 BRUNSON, J. L., -C- BRONTE (CAMBRIAN) BOAZ ENERGY II OPERATING, LLC 04763 BRUSENHAN SPRABERRY (TREND AREA) OVINTIV USA INC. 09262 BRUSENHAN "A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09251 BRUSHY DRAW E SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17664 BRUSHY EAST SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19468 BRUSHY WEST SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19432


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BRYAN DAVIS VIRDEN (CAPPS LIMESTONE) 3-D OIL & GAS 18008 BRYAN ESTATE #5 WINGATE, NW (GRAY) REO OPERATING LLC 08370 BRYAN, WAYNE NORTON, N. (CAPPS) HOPEWELL OPERATING, INC. 14731 BRYANS, J. C. "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14111 BRYANT KENKER (REEF) PERIMETER RESOURCE COMPANY 15475 BRYANT TRUST AL REID PHD (CANYON) OVINTIV USA INC. 14914 BRYANT, M. D. KNICKERBOCKER (STRAWN) PERIMETER RESOURCE COMPANY 04303 BRYNLEE SHEFFIELD, SE (CLEAR FORK) HENRY RESOURCES LLC 19193 BRYNLEE SHEFFIELD, SE (DEVONIAN) HENRY RESOURCES LLC 18774 BRYNLEE '9-8' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19222 BRYNLEE 9 AND 8 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19847 BRYNLEE 9-8 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19512 BSA SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 15645 BSA STRAWN 12 BSA (STRAWN SAND) J & J WELL SERVICE, INC. 12528 BUCHANAN UNIT STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 16703 BUDDY-JACK LUCKY MAG (CONSOLIDATED) SAFEMARK OIL & GAS, LLC 17413 BULL FIELD UNIT MCMILLAN JERICHO ENERGY OPERATIONS, LLC 16932 BULLHEAD SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20070 BULLOCK FLAT IRON (STRAWN) TUMBLEWEED ENERGY LIMITED 10659 BUNGER ARENA (KING SAND) DAMRON ENERGY, LLC 15735 BUNGER HALLORAN (CROSS CUT) SMITH PIPE OF ABILENE 12636 BUNGER "2" ARENA (KING SAND) DAMRON ENERGY, LLC 18149 BUNGER/SORRELL UNIT SPECK, SE. (KING) PRODUCTION OPERATORS OF TX, LLC 16453 BURELSMITH ANDERGRAM (FRY) 3-D OIL & GAS 16696 BURKITT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18345 BURLESON MCCAMEY (DEVONIAN) APV MCCAMEY LLC 11459 BURLESON-JOHNS MCCAMEY KENNEDY, R. R. PRODUCTION, INC. 06897 BURLESON, A. S. MCCAMEY O & O OPERATORS, LLC. 11555 BURLESON, A.S. MCCAMEY XOG OPERATING LLC 00881 BURNES, EARL GERLACH (ELLENBURGER) SOLI DEO GLORIA PETROLEUM, LLC 11975 BURNES, EARL SAND TECH (JENNINGS) SOLI DEO GLORIA PETROLEUM, LLC 11978 BURNEY 3086 ANDREW A (WOLFCAMP) MEADCO PROPERTIES 17325 BURNS-MIKESKA BAYS (GOEN LIME) BETTIS, BOYLE & STOVALL 15400 BURNS-WATKINS UNIT DORMAN (GOEN) BETTIS, BOYLE & STOVALL 14936 BUSBY 10 KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 14668 BUSH NEEDLE CREEK (STRAWN) FELDERHOFF PRODUCTION COMPANY 13423 BUSH-THOMPSON 140 RAMON (LEONARD) SILVER OIL & GAS INC. 13248 BUSH, JERRY GLENN NEEDLE CREEK (STRAWN) FELDERHOFF PRODUCTION COMPANY 13600 BUSH, JERRY GLENN "C" NEEDLE CREEK (STRAWN) FELDERHOFF PRODUCTION COMPANY 13801 BUSHER, H.F. ET AL A BUSHER (MORRIS) SPH DEVELOPMENT, LLC 05703 BUTNER, R. F. RAWLINGS (JENNINGS, UPPER) IVORY ENERGY, LLC 05782 BUTNER, R. F. RAWLINGS (5100) IVORY ENERGY, LLC 01227 BYARS, M. D. SMC (CANYON REEF) SMC OIL & GAS, INC. 13308 BYERS "C" LOCO RICO (GARDNER-A) LIME CREEK ENTERPRISES, L.L.C. 07066 BYERS, CORA GHG (DOGBEND LIMESTONE) LARIAT LAND & EXPLORATION, INC. 11524 BYLER BALLINGER (GARDNER) R & R WELL SERVICE, INC. 14709 BYLER BALLINGER (PALO PINTO, N.) OIL, GAS, ETC. LLC 07673 BYLER BROOKS (SAN ANGELO) FRATELLI EXPLORATION, L.P. 06539 BYLER ELM CREEK (PALO PINTO) RING ENERGY, INC. 18789 BYLER HATCHELL, WEST (PALO PINTO) VIATHON HYDROCARBONS, INC. 09912 BYLER -A- BROOKS, SOUTHEAST (SAN ANGELO) FRATELLI EXPLORATION, L.P. 03472


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ BYLER -A- 1-T BROOKS (CANYON LOWER) OXY USA INC. 03287 BYLER -B- BYLER (SAN ANGELO) FRATELLI EXPLORATION, L.P. 02777 BYLER "B" BROOKS (SAN ANGELO) FRATELLI EXPLORATION, L.P. 11024 BYLER A-1 BALLINGER (PALO PINTO) S.B. STREET OPERATING, INC. 08697 BYMAN NEEDLE CREEK (CANYON) FELDERHOFF PRODUCTION COMPANY 13715 BYNUM WILDCAT NORTH AMERICAN DRILLING CORP 17004 BYNUM HARRIETT (PALO PINTO) NORTH AMERICAN DRILLING CORP 17007 BYNUM 2 AMACKER-TIPPETT, SE(BEND 10600) MIDLAND ENERGY, INC. 19557 BYNUM 2 SPRABERRY (TREND AREA) MIDLAND ENERGY, INC. 20412 BYNUM, R. C. JAMESON, SW. (STRAWN) VISION EXPLORATION LLC 07080 BYNUM, R.C. 198 JAMESON (STRAWN) JATAM INC. 08559 BYNUM, R.C., EAST A JAMESON, SW. (STRAWN) AXIS ENERGY CORPORATION 07155 C. H. SUGG SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17194 C. R. SPROUL VELREX, SW. (CANYON) SHOCO PRODUCTION LLC 18805 C. T. HARRIS LIN (WOLFCAMP) QEP ENERGY COMPANY 17900 CABOT SPRABERRY (TREND AREA) HOLLIDAY DRILLING, INC. 13999 CADEN SPRABERRY (TREND AREA) COG OPERATING LLC 16569 CAFFEY, ARMOR SPECK, SO. (KING SD.) ARMOR PETROLEUM, INC. 04611 CAITLIN SPRABERRY (TREND AREA) SM ENERGY COMPANY 15425 CALCOTE UNIT WINTERS, NORTH (GARDNER SAND) HARDROCK RESOURCES INC. 14867 CALLA MAE ARLEDGE (PENN SAND) BREITBURN OPERATING L.P. 13062 CALLA MAE A ARLEDGE (PENN SAND) BREITBURN OPERATING L.P. 06394 CALVIN SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14227 CAMAR(STRAWN) FIELD UNIT CAMAR (STRAWN-OIL) WOODSTONE ENTERPRISES, INC. 08616 CAMAR, SW (STRAWN) UNIT CAMAR, SW. (STRAWN) CREST OPERATING COMPANY 15590 CAMMY BEDDO (DANKWORTH LIME) DBO OIL INCORPORATED 13526 CAMMY DEANIE B. (JENNINGS SD.) DBO OIL INCORPORATED 13643 CAMMY DEANIE B. (PALO PINTO) EDMONDSON OIL & GAS 13522 CAMMY "A" DEANIE B. (JENNINGS SD.) DBO OIL INCORPORATED 13743 CAMMY "B" DEANIE B. (JENNINGS SD.) DBO OIL INCORPORATED 14318 CAMMY A DEANIE B. (PALO PINTO) DBO OIL INCORPORATED 15401 CAMPBELL SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18249 CAMPBELL, HUGH BALLINGER (PALO PINTO) OIL, GAS, ETC. LLC 02454 CAMPBELL, MARK & HUGH "A" BALLINGER (PALO PINTO) DRENNAN OIL L.L.C. 08742 CANNING HALL (SAN ANDRES) ELCO OIL & GAS, INC. 18068 CAPITAN BOWLING CNTR., INC -B- FOUR CORNERS (CROSSCUT, LO) GRIFFIN PETROLEUM COMPANY 06120 CAPTAIN COLL 15 LIN (WOLFCAMP) FORELAND OPERATING, LLC 18252 CARA SPRABERRY (TREND AREA) ROBERTS & HAMMACK INC. 14240 CARADHRAS 18 SPRABERRY (TREND AREA) R 40 EXC CROWNQUEST OPERATING, LLC 19083 CARGILE ARLEDGE (PENN SAND) BREITBURN OPERATING L.P. 13172 CARLA SPRABERRY (TREND AREA) COG OPERATING LLC 15930 CARLA CAMPBELL BALLINGER, SOUTH (CAPPS LIME) LANGSTON OIL, LLC 18511 CARLA EAST A SPRABERRY (TREND AREA) COG OPERATING LLC 20197 CARLA EAST B SPRABERRY (TREND AREA) COG OPERATING LLC 20236 CARLA WEST C SPRABERRY (TREND AREA) COG OPERATING LLC 20219 CARLA WEST D SPRABERRY (TREND AREA) COG OPERATING LLC 20235 CARLETON "A" SPRABERRY (TREND AREA) DE3 OPERATING LLC 12585 CARLOS "1" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17112 CARLOS "14" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17311 CARLSON NEEDLE CREEK (STRAWN) FELDERHOFF PRODUCTION COMPANY 13535 CARLTON -B- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 07812


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ CAROE 8 SPRABERRY (TREND AREA) TXP, INCORPORATED 18018 CAROL GASSIOT EXOC (980) STRAWN PARTNERS OPERATING, LLC 19598 CAROLINE SPRABERRY (TREND AREA) XTO ENERGY INC. 17142 CAROLINE WINTERS, NW. (JENNINGS) ENRICH OIL CORPORATION 18875 CAROLYN SPRABERRY (TREND AREA) COG OPERATING LLC 18034 CARPENTER-BARTLEY HANSON (GRAYBURG) J RICO OIL, LLC 09958 CARPENTER, HELEN S. HANSON (GRAYBURG) J RICO OIL, LLC 03646 CARR JOHN SCOTT (GRAYBURG) DLB OIL & GAS INC. 10206 CARR JOHN SCOTT (GRAYBURG) RANDA OPERATING, INC. 09998 CARR -1A- JOHN SCOTT (GRAYBURG) RANDA OPERATING, INC. 12452 CARR "A" JOHN SCOTT (GRAYBURG) DLB OIL & GAS INC. 10818 CARR ESTATE SPRABERRY (TREND AREA) V-F PETROLEUM INC. 05795 CARR ESTATE "4" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 08451 CARR ESTATE ET AL JAMESON (STRAWN) EDWARDS ENERGY CORPORATION 09438 CARR, JOHN JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 04734 CARR, JOHN (H) SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04627 CARR, JOHN O. SPRABERRY (TREND AREA) V-F PETROLEUM INC. 04334 CARR, JOHN O. -A- SPRABERRY (TREND AREA) V-F PETROLEUM INC. 04424 CARR, JOHN RANCH -B- JOHN SCOTT (GRAYBURG) DLB OIL & GAS INC. 02977 CARR, JOHN, -B- JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 04735 CARR, JOHN, -C- JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 04736 CARR, JOHN, -D- JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 04737 CARSON "100" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17069 CARSON "92" SPRABERRY (TREND AREA) COG OPERATING LLC 17081 CARSON 99A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17386 CARSON 99B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16870 CARSON, H. TRUSTEE CHRISTI (CANYON 6800) OXY USA INC. 05982 CARSON, IRA V. I. P. (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 18251 CARTER DRAW THE LINE (CANYON) GEOSURVEYS, INC. 18499 CARTER LUCKY MAG (CONSOLIDATED) FORTUNE ENERGY, INC. 16993 CARTER MWJ (CANYON) CLEAR WATER INC. 07461 CARTER ROCK PEN (CLEARFORK) FORTUNE ENERGY, INC. 17759 CARTER SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18460 CARTER "1909" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20712 CARTER "1909" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15776 CARTER "1909A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17560 CARTER A SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18634 CARTER SWD VAN KEUREN (SAN ANGELO) TANKERSLEY SWD LLC 17593 CARTER 1909A LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18861 CARTER, B. B. COPE ENDEAVOR ENERGY RESOURCES L.P. 00349 CARTER, J. C. ELM CREEK (GARDNER UPPER) S.B. STREET OPERATING, INC. 10191 CARTER, R L MILLERSVIEW, W. (TANNEHILL) O'DELL, MITCHELL 16581 CARTER, R. L. MILLERSVIEW, SW. (CAMAR SD.) O'DELL, MITCHELL 15578 CARTER, R. L. SPECK, NORTH (CANYON) FRONT STREET OPERATING, LLC 06487 CARTER, R. L. SPECK, NORTH (STRAWN) J & J SERVICES COMPANY 03573 CARTER, R. L. -B- SPECK, NORTH (STRAWN) FRONT STREET OPERATING, LLC 06493 CARTER, R. L."A" SPECK, NORTH (CANYON) FRONT STREET OPERATING, LLC 03602 CASE VELREX (HENDERSON UPPER) TOC ENERGY RESOURCES, LLC 07978 CASE VELREX (HENDERSON UPPER) VERDAD OIL & GAS CORPORATION 07409 CASE A CODY BELL (CANYON) DISCOVERY OPERATING, INC. 14634 CASE, A. J. GWYN (CANYON) DISCOVERY OPERATING, INC. 07476


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ CASE, FRED VELREX, SW. (CANYON) TOC ENERGY RESOURCES, LLC 11668 CASE, H. J. "B" CODY BELL (CANYON) O'NEILL PROPERTIES, LTD. 15558 CASE, J. I. VELREX, SW. (ELLENBURGER) HENDERSON NATURAL RES, L.L.C. 04749 CASE, R. I. VELREX (HENDERSON UPPER) TOC ENERGY RESOURCES, LLC 04470 CASE, R. I. "57" VELREX (CANYON, UP.) DISCOVERY OPERATING, INC. 12110 CAT CLAW SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17776 CAT CLAW A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17727 CAT CLAW B SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17995 CAT CLAW C SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18291 CATHY SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16676 CAUBLE -31- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04906 CAUBLE 21-30 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20368 CAUBLE 32 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04619 CAUBLE, E. G. SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 14120 CAUBLE, E. G., -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14156 CAUBLE, E. G., -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14157 CAUBLE, E. G., -C- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14158 CAUBLE, E. G., -D- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14159 CAZA 158 SPRABERRY (TREND AREA) FIREBIRD ENERGY LLC 17377 CAZA 162 SPRABERRY (TREND AREA) FIREBIRD ENERGY LLC 17621 CBS SHANNON ESTATE VAUGHN CONSOLIDATED VANCO OIL & GAS CORP. 19124 CC SPRABERRY (TREND AREA) APACHE CORPORATION 17037 CC SABATHIA 37-36-E SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20862 CC SABATHIA 37-36-F SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20883 CC SABATHIA 37-36-G SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20903 CC 33 SPRABERRY (TREND AREA) APACHE CORPORATION 20218 CC 4045 EAST E SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19694 CC 4045 EAST F SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19974 CC 4045 EAST G SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19965 CC 4045 EAST H SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19960 CC 4045 WEST A SPRABERRY (TREND AREA) R 40 EXC PRIME OPERATING COMPANY 19458 CC 4045 WEST B SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19797 CC 4045 WEST C SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19752 CC 4045 WEST D SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19671 CC 4132A SPRABERRY (TREND AREA) R 40 EXC PRIME OPERATING COMPANY 19071 CC 4132B SPRABERRY (TREND AREA) R 40 EXC PRIME OPERATING COMPANY 19199 CC 4132C SPRABERRY (TREND AREA) R 40 EXC PRIME OPERATING COMPANY 19395 CC 4132D SPRABERRY (TREND AREA) R 40 EXC PRIME OPERATING COMPANY 19300 CC 4144 EAST SPRABERRY (TREND AREA) R 40 EXC PRIME OPERATING COMPANY 19352 CC 4144 EAST A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19637 CC 4144 EAST B SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19701 CC 4144 WEST C SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19700 CC 4144 WEST D SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19788 CC 4144 WEST E SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19837 CC 42 SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19069 CC 42 A SPRABERRY (TREND AREA) APACHE CORPORATION 19998 CC 42 B SPRABERRY (TREND AREA) APACHE CORPORATION 19996 CC 42 UNIT SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19180 CC 4243 X SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 20245 CC 43 EAST G SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19923 CC 43 EAST H SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19924


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ CC 43 WEST A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19668 CC 43 WEST B SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19643 CC 43 WEST C SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 20227 CC 45 SPRABERRY (TREND AREA) APACHE CORPORATION 19456 CC 48 WEST SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19304 CCP C53 SPRABERRY (TREND AREA) TRP OPERATING LLC 16246 CCP H53 SPRABERRY (TREND AREA) TRP OPERATING LLC 16113 CCP L53 SPRABERRY (TREND AREA) TRP OPERATING LLC 16260 CCP M53 SPRABERRY (TREND AREA) TRP OPERATING LLC 17244 CCP P1 SPRABERRY (TREND AREA) TRP OPERATING LLC 18087 CEDERHOLM BALLINGER, WEST (CAPPS) BRIGHTRIVER ENERGY CO 13755 CEDERHOLM BALLINGER, WEST (MORRIS SD) OTEX LLC 17141 CEDERHOLM BALLINGER, WEST (PALO PINTO) BRIGHTRIVER ENERGY CO 20237 CEMETERY '28' SPRABERRY (TREND AREA) CAMBRIAN MANAGEMENT, LTD. 18548 CENT. NATL. BANK LYGAY FDL OPERATING, LLC 00830 CENTRAL NATIONAL BANK -A- JAMESON (STRAWN) FDL OPERATING, LLC 00717 CENTRAL NATIONAL BANK "A" LYGAY FDL OPERATING, LLC 07918 CHADBOURNE "14" WINGATE, WEST (GRAY) TRIANGLE P DEVELOPMENT CORP. 12459 CHADBOURNE RANCH -288- WINGATE, WEST (GRAY) TRIANGLE P DEVELOPMENT CORP. 12206 CHADBOURNE RANCH 431 FORT CHADBOURNE, W. (GARDNER) GRIZZLY OP OF DELAWARE, LLC 11713 CHADBOURNE RANCH 431 -A- CONDA (FLIPPEN) P.O.&G. OPERATING, LLC 13773 CHADBOURNE RANCH 469 FORT CHADBOURNE (GARDNER) GRIZZLY OP OF DELAWARE, LLC 13618 CHAMBERS HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 18356 CHAMBERS B MIDWAY LANE (1300) VANCO OIL & GAS CORP. 17761 CHAMBERS CO. -B- SCHOOL LAND MIDWAY LANE (1300) KDM PRODUCTION CO 01019 CHAMBERS COUNTY WILDCAT MOMENTUM ENERGY CORPORATION 16038 CHAMBERS COUNTY MIDWAY LANE (850) MOMENTUM ENERGY CORPORATION 15771 CHAMBERS COUNTY MIDWAY LANE (1050 SD.) MOMENTUM ENERGY CORPORATION 04361 CHAMBERS COUNTY VAUGHN CONSOLIDATED KDM PRODUCTION CO 19037 CHAMBERS COUNTY -A- BATTERY 7 MIDWAY LANE (1300) KDM PRODUCTION CO 01018 CHAMBERS COUNTY -C- SCHOOL LAND MIDWAY LANE (1300) KDM PRODUCTION CO 01021 CHAMBERS CSL MIDWAY LANE (1300) VANCO OIL & GAS CORP. 16857 CHAMBERS CSL VAUGHN CONSOLIDATED VANCO OIL & GAS CORP. 19125 CHAMBERS CSL VAUGHN (ELLENBURGER) THOMPSON, J. CLEO 15090 CHAMBLISS WINTERS, NORTH (GARDNER SAND) WINDOW OPERATING CO., THE 19578 CHAN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 15660 CHANDLER OZONA, NE. (CANYON SAND) EPIC PERMIAN OPERATING, LLC 15598 CHANDLER, E. H. OZONA, NE. (CANYON SAND) BEDROCK PRODUCTION, LLC 15458 CHANDLER, E. H. OZONA, NW. (CANYON) BEDROCK PRODUCTION, LLC 04356 CHANDLER, E. H., UNIT "A" OZONA, NW. (CANYON) BEDROCK PRODUCTION, LLC 04591 CHANEY MCCAMEY XOG OPERATING LLC 00860 CHANEY 43 SPRABERRY (TREND AREA) APACHE CORPORATION 18143 CHAPMOND LUCKY PIERRE HARDROCK RESOURCES INC. 18464 CHAPPELL JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 07070 CHAPPELL, J. E. JAMESON (STRAWN) ATLAS OPERATING LLC 00713 CHAPPELL, J. E. "A" JAMESON (STRAWN) ATLAS OPERATING LLC 06562 CHAPPELL, J. ELLWOOD -C- JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 00627 CHAR HUGHES SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 18582 CHAR HUGHES SWD SPRABERRY (TREND AREA) GOODNIGHT MIDSTREAM PERMIAN, LLC 19179 CHAR HUGHES 28-2 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19955 CHAR 46-9 A SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20404


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ CHAR 46-9 B SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20405 CHARLIE LIVINGSTON, JR. 22P FUNK (SAN ANDRES) BANNER OPERATING, LLC 17048 CHARLOTTE SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16679 CHARLOTTE A UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18318 CHARLOTTE B UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18508 CHARLOTTE C UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18660 CHARLTON BROOKS (CANYON K) VERDAD OIL & GAS CORPORATION 12049 CHARLTON BROOKS, SOUTHEAST (SAN ANGELO) FRATELLI EXPLORATION, L.P. 10802 CHARLTON, JANE ELIZABETH BROOKS (CANYON K) TOC ENERGY RESOURCES, LLC 15158 CHASE, MARY H. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14217 CHEANEY CARAWAY & SMITH (1800 SD.) FORTUNE ENERGY, INC. 15674 CHEANEY CHEANEY (STRAWN) FORTUNE ENERGY, INC. 05682 CHERYL "S" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16713 CHEVRON "35" SPRABERRY (TREND AREA) COG OPERATING LLC 16975 CHEVRON "43" SPRABERRY (TREND AREA) COG OPERATING LLC 15912 CHICO CORDERO PERDIO (CAPPS LIME) HW OPERATING, LLC 20093 CHICO KICKAPOO BEND (STRAWN) HW OPERATING, LLC 20384 CHICO SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11809 CHICO AL01 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20478 CHICO AL02 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20477 CHICO COMPANY SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17384 CHICO COMPANY A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18090 CHICO COMPANY W LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18348 CHICO EAST ALLOCATION A SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19706 CHICO EAST 2-28 ALLOC 02 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19839 CHICO SWD SPRABERRY (TREND AREA) H & S SWD, LLC 17862 CHICO WEST 2-1 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19469 CHILDRESS BUCKHORN, S. (STRAWN) OSBORN HEIRS COMPANY 17200 CHILDRESS MANULIK (CLEARFORK) OSBORN HEIRS COMPANY 16529 CHILDRESS "140" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17024 CHILDRESS-RICHARDSON '13' TRIUMPH (WOLFCAMP) PETROPLEX ENERGY INC. 13527 CHILDRESS-RICHARDSON "4" TRIUMPH (WOLFCAMP) PETROPLEX ENERGY INC. 13377 CHILDRESS, OWEN D. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13927 CHLOE SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 16266 CHOAT PIPE DREAM (KING SAND) BOWERMAN OIL & GAS, INC. 13367 CHOATE SPECK, SE. (KING) BOWERMAN INVESTMENTS INC. 17068 CHRIESMAN SPRABERRY (TREND AREA) HUNT OIL COMPANY 04710 CHRISTINE SPRABERRY (TREND AREA) COG OPERATING LLC 17599 CHRISTY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16326 CHRISTY "D" SPRABERRY (TREND AREA CL. FK.) PIONEER NATURAL RES. USA, INC. 13800 CHRISTY B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19406 CHRISTY C SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19398 CHRISTY-HALFF 15A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19848 CHRISTY-HALFF 15B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19911 CHRISTY-HALFF 15C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19903 CHRISTY-HALFF 15K SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19904 CHRISTY-HALFF 15L SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19905 CHRISTY, J. D. BLUE DANUBE (STRAWN) XTO ENERGY INC. 05530 CHRISTY, J. D. SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 02727 CHRISTY, J. D. SPRABERRY (TREND AREA) XTO ENERGY INC. 16588 CHURCH SPRABERRY (TREND AREA) DE3 OPERATING LLC 07491


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ CIDER A 203-226 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 20499 CINCO TERRY 'H' HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17861 CINCO TERRY 'J' HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17905 CINCO TERRY 'K' HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17910 CINCO TERRY 'L' HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 18056 CINCO TERRY "A" HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17256 CINCO TERRY "F" HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17454 CINCO TERRY "G" HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17583 CINCO TERRY "M" HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17562 CINDY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 15643 CINDY "A" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16223 CINDY B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16539 CINDY C SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16540 CINDY KAY SPRABERRY (TREND AREA) COG OPERATING LLC 16454 CIRCLE C SWD BENEDUM (SPRABERRY) WICHITA WATER LLC 17766 CITIES STATE "20" FARMER (SAN ANDRES) LAST DOLLAR LLC 14841 CLAIRE SPRABERRY (TREND AREA) DE3 OPERATING LLC 18299 CLARA DEANIE B. (JENNINGS SD.) HIDALGO OIL & EXPLORATION CORP. 18380 CLARA ALLEN 12 LIN (WOLFCAMP) FORELAND OPERATING, LLC 18483 CLARISSA H SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19532 CLARK SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 05299 CLARK TAOS (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12769 CLARK TAOS (CANYON) SIANA OIL & GAS 14400 CLARK TOE NAIL (STRAWN) AEON OPERATING, INC. 18724 CLARK -A- TAOS (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12925 CLARK -15- SPRABERRY (TREND AREA) ATLAS OPERATING LLC 12165 CLARK -15- SPRABERRY (TREND AREA) CITATION OIL & GAS CORP. 04758 CLARK "10" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20744 CLARK "10" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17201 CLARK "10A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20746 CLARK "10A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17217 CLARK "10B" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20745 CLARK "10B" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17209 CLARK "11" TAOS (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12730 CLARK RANCH WILDCAT TRI-FORCE OPERATING, L.L.C. 14674 CLARK RANCH CELERY (CANYON) TRI-FORCE OPERATING, L.L.C. 14676 CLARK RANCH CELERY (GUNSIGHT) TRI-FORCE OPERATING, L.L.C. 13571 CLARK RANCH CELERY (STRAWN 2975) TRI-FORCE OPERATING, L.L.C. 15427 CLARK RANCH SOUTH CELERY (CANYON) TRI-FORCE OPERATING, L.L.C. 15156 CLARK RANCH SOUTH CELERY (COOK SAND) TRI-FORCE OPERATING, L.L.C. 14613 CLARK RANCH SOUTH CELERY (COOK SAND) TRI-FORCE OPERATING, L.L.C. 17540 CLARK RANCH SOUTH CELERY (STRAWN 2800) TRI-FORCE OPERATING, L.L.C. 14768 CLARK RANCH SOUTH CELERY (STRAWN 2975) TRI-FORCE OPERATING, L.L.C. 14909 CLARK RANCH SOUTH LELA (GUNSIGHT) TRI-FORCE OPERATING, L.L.C. 14753 CLARK RANCH SOUTH MENARD, N. (STRAWN 2775) TRI-FORCE OPERATING, L.L.C. 15087 CLARK, BONNIE A BALLINGER (PALO PINTO) PLACE OIL AND GAS CO. 00077 CLARK, GLADYS "A" SPRABERRY (TREND AREA) APACHE CORPORATION 07309 CLARK, H.W. H.W. CLARK (CANYON SD) BOB HUGHES OIL COMPANY, LLC 08679 CLARK, L. C. -B- WATER VALLEY (SAN ANDRES) SS OPERATING LLC 02097 CLARK, L. T. WATER VALLEY (SAN ANDRES) SS OPERATING LLC 06691 CLARK, L. T. (PLACID) WATER VALLEY (SAN ANDRES) SS OPERATING LLC 02089


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ CLARK, L. T. -A- WATER VALLEY (SAN ANDRES) GILSTRAP, JOEL 02090 CLARK, L. T. "F" WATER VALLEY (CLEAR FORK) VAQUERO OPERATING 16956 CLARK, L. T. "F" WATER VALLEY (SAN ANDRES) VAQUERO OPERATING 16708 CLARK, L.T. (A) WATER VALLEY (SAN ANGELO) GILSTRAP, JOEL 14610 CLARKSON SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14153 CLARKSON ESTATE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14155 CLARKSON RANCH SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13550 CLAYTON BALLINGER WEST (GARDNER) MILLICAN OIL LLC 19349 CLAYTON SPRABERRY (TREND AREA) COG OPERATING LLC 15797 CLAYTON -137- LOCO RICO (GARDNER-A) VIATHON HYDROCARBONS, INC. 10455 CLAYTON, CARRIE NORDIC (DOG BEND) CONQUISTADOR PETROLEUM,INC. 12480 CLAYTON, J M MIDSTATES (WINCHELL) 3-D OIL & GAS 11464 CLEGG OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 05937 CLEGG 83 OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 18863 CLEGG, ELOISE OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 05961 CLINCH 4238 LIN (WOLFCAMP) APACHE CORPORATION 18016 CLYDEAN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19765 CLYDEAN B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19684 CLYDEAN C SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19761 COATES SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 03989 COATES -B- SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 04060 COATES -B- - MARATHON UNIT 1 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 18684 COATES -B- MARATHON UNIT 3 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19528 COATES -B-MARATHON UNIT 2 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19004 COATES B - COATES A UNIT 1 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19002 COATES B - COATES A UNIT 2 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19003 COATES B - COATES A UNIT 3 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19005 COATES 738 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18598 COATES 738 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20545 COATES 738E LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19499 COATES 738E SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20546 COATS WALDRIP-NOVO (MORRIS SAND) SEVEN CROSS OPERATING, LLC 15047 CODY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18033 CODY -A- AMACKER-TIPPETT, S. (BEND) EOG RESOURCES, INC. 04218 CODY -B- AMACKER-TIPPETT, S. (BEND) EOG RESOURCES, INC. 04377 CODY B AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 15675 CODY B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18177 CODY BELL 53 TRIUMPH (WOLFCAMP) SWARTZ OIL COMPANY 20852 CODY BELL, JR HELUMA (DEVONIAN) BELL, CODY, JR. 11738 CODY BELL, JR. "D" HELUMA (DEVONIAN) BELL, CODY, JR. 12335 CODY M SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18125 COLBURN SPIKE, NORTH (PALO PINTO) WINDOW OPERATING CO., THE 19509 COLBURN WINTERS, NORTH (GARDNER SAND) HARDROCK RESOURCES INC. 17444 COLBURN WINTERS, NORTH (GARDNER SAND) WINDOW OPERATING CO., THE 19567 COLEMAN-LACEY UNIT URBAN (MILES) SOJOURNER DRILLING CORPORATION 12023 COLLIER, ET AL I.A.B., SOUTH (CANYON) PACE PRODUCTION CO. 06315 COLLOM CREWS, SOUTH (GARDNER, UP.) SCOUT ENERGY MANAGEMENT LLC 17453 COMANCHE RANCH BYERS (GARDNER) LP OPERATING, LLC 17492 COMANCHE RANCH BYERS, SOUTH (GARDNER) GREAT TEXAS CRUDE INC. 17748 COMANCHE RANCH A BYERS (GARDNER) GREAT TEXAS CRUDE INC. 17598 COMPTON "30" FISHER LAKE (STRAWN) REMUDA OPERATING COMPANY 13684


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ CONCHO SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 16753 CONCHO A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17374 CONCHO, WILLIE PIPE DREAM (KING SAND) MARSHALL & WINSTON, INC. 13362 CONDRA LOCO RICO (GARDNER-A) R & R WELL SERVICE, INC. 14424 CONNELL SPRABERRY (TREND AREA) ODESSA EXPLORATION, INC. 11582 CONNELL "A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 13220 CONNELL "B" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18568 CONNELL "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04414 CONNELL COWDEN 48 SPRABERRY (TREND AREA) APACHE CORPORATION 17398 CONNELL EST. "A" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 08402 CONNELL ESTATE SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08341 CONNELL ESTATE SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 08107 CONNELL ESTATE "A" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 10681 CONNELL ESTATE "B" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 10903 CONNELL 38A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19072 CONNELL 38B SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19296 CONNELL 38C SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19338 CONNELL 47 SPRABERRY (TREND AREA) APACHE CORPORATION 19453 CONNELL 47 SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19605 CONNELL 48 WEST SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19457 CONNIE "S" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16757 CONTENT RICHEY CREE-SYKES (GARDNER, UPPER) RHYNE, J.V. 16189 COOK, P. W. SPRABERRY (TREND AREA) BRP ENERGY, LLC 14030 COOK, T. E. SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 13986 COOK, THOMAS E. -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13925 COOL WATER NORTH I 13-7 SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 20827 COOL WATER NORTH J 13-7 SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 20771 COOPER WILDCAT OGL HOLDINGS, LLC 18078 COOPER, J.E. SPILL (CAPPS UPPER) LONE STAR PRODUCTION 10458 COPE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14587 COPE SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 14057 COPE "83" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14363 COPE "84" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14655 COPE UNIT COPE ROVER PETROLEUM OPERATING, LLC 03099 COPE 107-108 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18617 COPE 107-108 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20670 COPE 34 SPRABERRY (TREND AREA) ROVER PETROLEUM OPERATING, LLC 14675 COPE 77 "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14712 COPE 79-80 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19239 COPE 79-80 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20666 COPE 82-81 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19226 COPE 82-81 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20667 COPE 82-83 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19227 COPE 82-83 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20668 COPE 82-83 ALLOC 01 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20375 COPE 82-83 ALLOC 01 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20669 COPE 84 "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14811 COPE-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17250 COPE-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18088 COPELAND JAMESON PIMA ENERGY, LLC 07031 COPELAND JAMESON, SW. (STRAWN) PIMA ENERGY, LLC 07153


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ COPELAND "B" JAMESON PIMA ENERGY, LLC 07107 COPELAND "81" JAMESON (STRAWN) MINERAL TECHNOLOGIES, INC. 11169 COPELAND, JOHN JAMESON (STRAWN) PIMA ENERGY, LLC 10788 COPELAND, JOHN C. JR., ETAL JAMESON (STRAWN) PIMA ENERGY, LLC 09623 COPELAND, JOHN JR. "B" JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 11585 COPELAND, JOHN JR., "C" JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 11871 COPELAND, JOHN JR., "D" JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 11872 COPELAND, JOHN JR., "E" JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 11863 COPELAND,JOHN C. JAMESON (STRAWN) PIMA ENERGY, LLC 09988 CORDES SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15536 CORDOBA NORTH LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18536 CORDOBA NORTH SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20547 CORDOBA SOUTH (AW) LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18710 CORDOBA SOUTH (AW) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20548 CORDOVA CORDOVA (STRAWN) NICLANE ENERGY, INC. 16201 CORDOVA RODMAN-NOEL (GRAYBURG) BUSTOS, MARTIN OIL 07888 CORDOVA -D- RODMAN-NOEL (GRAYBURG) BUSTOS, MARTIN OIL 01236 CORDOVA-UNION MCCAMEY XOG OPERATING LLC 00849 CORDOVA-UNION MCCAMEY XOG OPERATING LLC 00896 CORDOVA-UNION -A- MCCAMEY TRIPP & SONS, LLC 00837 COREY "A" SPRABERRY (TREND AREA) XTO ENERGY INC. 12458 COREY "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 21019 COREY "B" SPRABERRY (TREND AREA) XTO ENERGY INC. 12835 CORKRAN, GRACE FUNK (SAN ANDRES) ELCO OIL & GAS, INC. 00535 CORMAC '17-20' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19804 CORMAC 17-20 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19305 CORMAC 8-17-A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20642 CORMAC 8-17-C SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20732 CORONADO LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17694 CORONADO SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20550 CORONADO (SA) LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18560 CORONADO (SA) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20551 CORONADO (SA) "A" LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18817 CORONADO (SA) "A" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20549 CORTES LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18117 CORTES SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20552 CORTES (AW) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20556 COT VERIBEST, S.E. (HARKEY) HUNT, PHIL 12595 COUCH -22- OZONA (CANYON SAND) EPIC PERMIAN OPERATING, LLC 12069 COUCH 22 OZONA, NE. (CANYON SAND) EPIC PERMIAN OPERATING, LLC 15813 COUCH 29 OZONA (CANYON SAND) EPIC PERMIAN OPERATING, LLC 12810 COUCH, CLARA CLARA COUCH CLARK OIL CO. 02420 COUCH, CLARA -B- CLARA COUCH STANOLIND PRODUCTION LLC 00325 COUCH, CLARA -H- CLARA COUCH STANOLIND PRODUCTION LLC 00326 COUEY, M. L. SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 13980 COUEY, M. L. -A- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13959 COUEY, M. L. -B- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13962 COUNCIL 27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19145 COUNCIL-MORGAN 27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19143 COUNCIL, FRANK SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06704 COWDEN TRIPOLI (ELLEN) PACE OIL AND GAS COMPANY 11404


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ COWDEN "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04382 COWDEN "D" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15626 COWDEN "26" SPRABERRY (TREND AREA) DE3 OPERATING LLC 10866 COWDEN "32" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 11815 COWDEN "42" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11892 COWDEN "43" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11932 COWDEN "44" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 11699 COWDEN "45" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 10904 COWDEN "48" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11958 COWDEN B SPRABERRY (TREND AREA) APACHE CORPORATION 17526 COWDEN C SPRABERRY (TREND AREA) APACHE CORPORATION 17223 COWDEN D SPRABERRY (TREND AREA) APACHE CORPORATION 17167 COWDEN E SPRABERRY (TREND AREA) APACHE CORPORATION 17058 COWDEN STATE UNIT "A" SOUTHWEST MESA (WOLFCAMP) CUSTER & WRIGHT OPERATING, INC. 12998 COWDEN 25 TIPPETT, W. (WOLFCAMP 5500) WTG EXPLORATION 13129 COWDEN 25 -B- TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05526 COWDEN 43 "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11987 COWDEN, ETAL SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 08093 COWDEN10 SPRABERRY (TREND AREA) TRP OPERATING LLC 16114 COWDEN11 SPRABERRY (TREND AREA) TRP OPERATING LLC 16294 COWDEN14 SPRABERRY (TREND AREA) TRP OPERATING LLC 16293 COWDEN15 SPRABERRY (TREND AREA) COG OPERATING LLC 15940 COWDEN16 SPRABERRY (TREND AREA) COG OPERATING LLC 15884 COWDEN17 SPRABERRY (TREND AREA) COG OPERATING LLC 15885 COWDEN17 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18853 COWDEN2 SPRABERRY (TREND AREA) COG OPERATING LLC 16258 COWDEN25 SPRABERRY (TREND AREA) COG OPERATING LLC 15904 COWDEN28 SPRABERRY (TREND AREA) COG OPERATING LLC 15873 COWDEN28 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19559 COWDEN29 SPRABERRY (TREND AREA) COG OPERATING LLC 15871 COWDEN30 SPRABERRY (TREND AREA) TRP OPERATING LLC 16088 COWDEN5 SPRABERRY (TREND AREA) COG OPERATING LLC 16272 COWDEN50 SPRABERRY (TREND AREA) TRP OPERATING LLC 16112 COWDEN51 SPRABERRY (TREND AREA) COG OPERATING LLC 16024 COWDEN52 SPRABERRY (TREND AREA) COG OPERATING LLC 16047 COWDEN53 SPRABERRY (TREND AREA) TRP OPERATING LLC 16180 COWDEN55 SPRABERRY (TREND AREA) COG OPERATING LLC 16247 COWDEN56 SPRABERRY (TREND AREA) TRP OPERATING LLC 16179 COWDEN57 SPRABERRY (TREND AREA) COG OPERATING LLC 16317 COWDEN59 SPRABERRY (TREND AREA) COG OPERATING LLC 16218 COWDEN6 SPRABERRY (TREND AREA) TRP OPERATING LLC 16239 COWDEN7 SPRABERRY (TREND AREA) TRP OPERATING LLC 16129 COX '60A' SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 17814 COX '60B' SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 18210 COX "19" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17517 COX 29 ROBLE GRANDE (STRAWN\WOODFORD) LAREDO PETROLEUM, INC. 18592 COX-STEWART BENEDUM (SPRABERRY) XTO ENERGY INC. 12964 COX, E. J. SPRABERRY (TREND AREA) MCCAMMON OIL & GAS, INC. 07027 COX, H. B. EST. B & H (QUEEN) PATNO OIL & GAS COMPANY 03103 COX, J. H. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11138 COX, J.H. "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13944


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ COX, L. B. 22 OZONA (CANYON SAND, OIL) EPIC PERMIAN OPERATING, LLC 07473 COX, W. W. "21" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15962 COX, X. B. "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14086 COX, X. B. "C" SPRABERRY (TREND AREA CL. FK.) PIONEER NATURAL RES. USA, INC. 12142 CRAVENS SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02914 CRAVENS -B- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14628 CRAVENS "31" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17477 CRAVENS 18 ANDREW A. (CANYON) THP OPERATING LLC 18537 CRAWFORD BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 07641 CRAWFORD "1230" BAKER RANCH (CANYON) FORTUNE ENERGY, INC. 08800 CRAWFORD "46" SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 17322 CRAWFORD, LETA D. MERTZON (SAN ANGELO) OXY USA INC. 15554 CRAWFORD, LETA D. SIXTY SEVEN (CLEAR FORK 3100) OXY USA INC. 11259 CREE SYKES UNIT CREE-SYKES (GARDNER, UPPER) ATLAS OPERATING LLC 00365 CREEK RANCH 11 DEER CANYON (UPPER STRAWN) WHITE ROCK OIL & GAS, LLC 14648 CREEK RANCH 60 K M, SW. (WOLFCAMP) WHITE ROCK OIL & GAS, LLC 13652 CREWS SPRABERRY (TREND AREA) BASA RESOURCES, INC. 04084 CREWS TRACT 1 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 03591 CREWS TRACT 2 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 03604 CRISTA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18790 CROCKETT 4951 SWD FARMER (SAN ANDRES) SALTY POT, LLC 18093 CROSBY, ELOISE WILLIAMS H-J (STRAWN) UNIT PETROLEUM COMPANY 12517 CROSSROADS SWD SPRABERRY (TREND AREA) PILOT WATER SOLUTIONS PERMIANLLC 19866 CROUCH-DIERSCHKE-SCHNIERS UNIT SCHNIERS FORTUNE ENERGY, INC. 11652 CROUCH-DIERSCHKE-WALL SCHOOL UNT SCHNIERS FORTUNE ENERGY, INC. 11912 CROWDER, B. R.-DAVIDSON REFOIL (CLEAR FORK UPPER) STIRRUP RANCH CO., LTD. 04142 CROWDER,B.R.-COUCH,CLARA EST #1 CLARA COUCH CLARK OIL CO. 03273 CRUTCHFIELD JUNE ANN (PENNSYLVANIAN) RISING STAR ENERGY PTR, L.L.C. 20540 CRUTCHFIELD SPRABERRY (TREND AREA) RISING STAR ENERGY PTR, L.L.C. 20465 CRYSTAL SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16130 CRYSTAL A UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18567 CRYSTAL B UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18595 CRYSTAL C UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18622 CT 35 SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 15820 CT 39 SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 15671 CUATRO WFM (GOEN LIME) ENRICH OIL CORPORATION 18204 CUATRO WINTERS, SW. (CANYON, UPPER) ENRICH OIL CORPORATION 19549 CURNUTTE "A" WINGATE, WEST (GARDNER) BRAZOS PETROLEUM, INC. 13013 CURRIE THE TRINITY (ODOM) LAVANCO ENERGY, LTD. 15079 CURRIE, LYLE J. THE TRINITY (ODOM) PURVIS OPERATING CO. 14605 CVX SPRABERRY (TREND AREA) SM ENERGY COMPANY 15761 CVX (SA) A SPRABERRY (TREND AREA) SM ENERGY COMPANY 19015 CVX (SA) B SPRABERRY (TREND AREA) SM ENERGY COMPANY 19101 CVX (SA) C SPRABERRY (TREND AREA) SM ENERGY COMPANY 19407 CVX (SA) D SPRABERRY (TREND AREA) SM ENERGY COMPANY 19434 CVX ALLOCATION SPRABERRY (TREND AREA) SM ENERGY COMPANY 18884 CVX KATIE (SA) A SPRABERRY (TREND AREA) SM ENERGY COMPANY 19650 CVX KATIE (SA) AB SPRABERRY (TREND AREA) SM ENERGY COMPANY 20877 CVX KATIE (SA) B SPRABERRY (TREND AREA) SM ENERGY COMPANY 19687 CVX KATIE (SA) C SPRABERRY (TREND AREA) SM ENERGY COMPANY 19758 CVX KATIE (SA) D SPRABERRY (TREND AREA) SM ENERGY COMPANY 19759


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ CVX KATIE (SA) E SPRABERRY (TREND AREA) SM ENERGY COMPANY 19680 CVX KATIE (SA) K SPRABERRY (TREND AREA) SM ENERGY COMPANY 20305 CVX KATIE (SA) Q SPRABERRY (TREND AREA) SM ENERGY COMPANY 20265 CVX KATIE (SA) R SPRABERRY (TREND AREA) SM ENERGY COMPANY 20260 CVX KATIE (SA) S SPRABERRY (TREND AREA) SM ENERGY COMPANY 20266 CVX KATIE (SA) T SPRABERRY (TREND AREA) SM ENERGY COMPANY 20876 CVX KATIE (SA) U SPRABERRY (TREND AREA) SM ENERGY COMPANY 20879 CVX KATIE (SA) V SPRABERRY (TREND AREA) SM ENERGY COMPANY 20871 CVX KATIE (SA) W SPRABERRY (TREND AREA) SM ENERGY COMPANY 20878 CYNTHIA SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06221 CYNTHIA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16008 CYNTHIA 'A' SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16364 D SCHAEFER OIL UNIT SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17791 D SCHAEFER OU 15-47 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19385 D. E. HUGHES "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16033 D. JOST OIL UNIT SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17378 DALLAS KEUCHEL '37-36' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19926 DALLAS KEUCHEL 36-37 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19415 DAMRON HELUMA, EAST (DEVONIAN) PETEX 06517 DAMRON HELUMA, SE (DEVONIAN) REIN PUSHER OPERATING LLC 09447 DAMRON "A" HELUMA (BASAL CONGLOMERATE) ENDEAVOR ENERGY RESOURCES L.P. 11606 DAMRON "A" HELUMA, SE (DEVONIAN) LEGACY RESERVES OPERATING LP 08002 DAMRON "B" HELUMA, EAST (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 07299 DAMRON "B" HELUMA, SE (DEVONIAN) LEGACY RESERVES OPERATING LP 08175 DAMRON "C" HELUMA, SE (DEVONIAN) LEGACY RESERVES OPERATING LP 08422 DAMRON "D" HELUMA, SE (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 08930 DAMRON "D" HELUMA, SE (DEVONIAN) LEGACY RESERVES OPERATING LP 08877 DAN MT. SUSAN, S. (STRN. LIME 5250) SOMMER OIL & GAS, LLC 11507 DANIEL WILDCAT J & J SERVICES COMPANY 15503 DANIEL 33 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14258 DANIELS -A- SPRABERRY (TREND AREA) APACHE CORPORATION 14273 DAPHNE UNIT MOTLEY, NORTH (CADDO LIME) HARDROCK RESOURCES INC. 19672 DARBY, B. S. KING MOUNTAIN, N. (BEND) XTO ENERGY INC. 08738 DARLING NORTH A JAR (PENNSYLVANIAN) FIREBIRD ENERGY LLC 18637 DARLING NORTH A SPRABERRY (TREND AREA) FIREBIRD ENERGY LLC 18455 DARLING NORTH B JAR (PENNSYLVANIAN) FIREBIRD ENERGY LLC 19000 DARLING NORTH B SPRABERRY (TREND AREA) FIREBIRD ENERGY LLC 18850 DAVENPORT FORT CHADBOURNE, W. (DEEP) PROLINE ENERGY RESOURCES INC 13737 DAVIDSON DORMAN, WEST (GOEN) HARDROCK RESOURCES INC. 14471 DAVIDSON '12' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19079 DAVIDSON '38D' SPRABERRY (TREND AREA) OVINTIV USA INC. 19181 DAVIDSON "A" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 12343 DAVIDSON "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15497 DAVIDSON "C" SPRABERRY (TREND AREA) OVINTIV USA INC. 16110 DAVIDSON "D" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15956 DAVIDSON "D" SPRABERRY (TREND AREA CL. FK.) ENDEAVOR ENERGY RESOURCES L.P. 16089 DAVIDSON "E" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16002 DAVIDSON "E" SPRABERRY (TREND AREA CL. FK.) ENDEAVOR ENERGY RESOURCES L.P. 15992 DAVIDSON "F" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16060 DAVIDSON "10" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13630 DAVIDSON "12" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13899


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ DAVIDSON "15" OZONA, SW. (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 08200 DAVIDSON "2" SPRABERRY (TREND AREA) OVINTIV USA INC. 14713 DAVIDSON "2A" SPRABERRY (TREND AREA) OVINTIV USA INC. 17125 DAVIDSON "2B" SPRABERRY (TREND AREA) OVINTIV USA INC. 17126 DAVIDSON "2C" SPRABERRY (TREND AREA) OVINTIV USA INC. 17127 DAVIDSON "37C" SPRABERRY (TREND AREA) OVINTIV USA INC. 19685 DAVIDSON "46" SPRABERRY (TREND AREA) OVINTIV USA INC. 14488 DAVIDSON "46A" SPRABERRY (TREND AREA) OVINTIV USA INC. 17119 DAVIDSON "46B" SPRABERRY (TREND AREA) OVINTIV USA INC. 17120 DAVIDSON "46C" SPRABERRY (TREND AREA) OVINTIV USA INC. 17121 DAVIDSON "48" SPRABERRY (TREND AREA) OVINTIV USA INC. 14672 DAVIDSON "48A" SPRABERRY (TREND AREA) OVINTIV USA INC. 17122 DAVIDSON "48B" SPRABERRY (TREND AREA) OVINTIV USA INC. 17123 DAVIDSON "48C" SPRABERRY (TREND AREA) OVINTIV USA INC. 17124 DAVIDSON "85" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 11710 DAVIDSON "86" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 12189 DAVIDSON UNIT 1 SPRABERRY (TREND AREA) XTO ENERGY INC. 19799 DAVIDSON 02A SPRABERRY (TREND AREA) OVINTIV USA INC. 19120 DAVIDSON 02B SPRABERRY (TREND AREA) OVINTIV USA INC. 19187 DAVIDSON 12 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20007 DAVIDSON 12A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18767 DAVIDSON 12A AND 12B SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19485 DAVIDSON 12A-12B SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18605 DAVIDSON 2G SPRABERRY (TREND AREA) OVINTIV USA INC. 19674 DAVIDSON 2X SPRABERRY (TREND AREA) OVINTIV USA INC. 19656 DAVIDSON 37B SPRABERRY (TREND AREA) OVINTIV USA INC. 19477 DAVIDSON 37G SPRABERRY (TREND AREA) OVINTIV USA INC. 20215 DAVIES PEGASUS (CONSOLIDATED) SM ENERGY COMPANY 18832 DAVIES PEGASUS (PENNSYLVANIAN) SM ENERGY COMPANY 12159 DAVIES ESTATE DAVIS (DEVONIAN) SM ENERGY COMPANY 12201 DAVIES ESTATE PEGASUS (CONSOLIDATED) SM ENERGY COMPANY 18831 DAVIS CREE-SYKES (GARDNER, UPPER) WILLOWBEND INVESTMENTS, INC. 17073 DAVIS NORA, SE. (PALO PINTO) 3-D OIL & GAS 15022 DAVIS SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 14426 DAVIS, G. R. "B" DAVIS (DEVONIAN) KAISER-FRANCIS OIL COMPANY 07814 DAVIS, G. R. "B" SPRABERRY (TREND AREA) KAISER-FRANCIS OIL COMPANY 18497 DAVIS, L. PEGASUS (CONSOLIDATED) DRIFTWOOD ENERGY OPERATING, LLC 18833 DAWN SPRABERRY (TREND AREA) COG OPERATING LLC 15526 DAWN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18081 DAWN A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18427 DDD BRINE PRICE (GRAYBURG) TALL CITY BRINE LLC 18546 DEAD MAN CANYON HALFF CLARK OIL CO. 18954 DEAN, ORA LEE BAYS (FRY SAND) SEQUOIA FOSSIL FUELS, INC. 14527 DEAN, ORA LEE WINGATE, WEST (GRAY) SEQUOIA FOSSIL FUELS, INC. 14770 DEBBIE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17480 DEBBIE LEE MCMASTER-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17193 DEBBIE LEE MCMASTER-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17661 DECK "A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19893 DECK "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11299 DEETS 33 LIN (WOLFCAMP) FORELAND OPERATING, LLC 18326 DEGUELLO HONDO PIPELINE (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 15431


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ DEIKE, T. HOWERTON (GOEN) E W D OIL 15476 DEL MAR CROCKETT WINTERS (PALO PINTO) DEL MAR ENERGY, INC. 18745 DELHI BRINE SPRABERRY (TREND AREA) TALL CITY BRINE LLC 18300 DELHI-JONES REGAL (WOLFCAMP) OXY USA INC. 14927 DELONG KA-ZE-SA (CANYON) DISCOVERY OPERATING, INC. 08473 DELONG LUCKY MAG (CONSOLIDATED) FORTUNE ENERGY, INC. 16992 DELONG, A. B. VELREX, SW. (ELLENBURGER) BOAZ ENERGY II OPERATING, LLC 04971 DEMERE WALNUT CREEK (LOWER CANYON) SCOUT ENERGY MANAGEMENT LLC 17977 DENILSON ELA SUGG (WOLFCAMP) TRILOGY OPERATING, INC. 15553 DENIS BO-JOHN (TILLERY) LILLIS, MICHAEL D. 15363 DESHON TRIUMPH (WOLFCAMP) THOMPSON, J. CLEO 13831 DEVACA LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18043 DEVACA SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20557 DEVACA "A" LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18391 DEVACA "A" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20558 DEVIN 25-24 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19896 DEVIN 25-24-H SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20098 DEVON FUNK (SAN ANDRES) PRESTONWOOD OPERATING LLC 17998 DEVON 21 FUNK (SAN ANDRES) PRESTONWOOD OPERATING LLC 19051 DEVON 31 FUNK (SAN ANDRES) BANNER OPERATING, LLC 19646 DEZAREY AMACKER-TIPPETT (WOLFCAMP) SUMMIT PETROLEUM LLC 02963 DEZAREY AMACKER-TIPPETT, SW (LEONARD, L) SUMMIT PETROLEUM LLC 14666 DHC SPRABERRY (TREND AREA) TRP OPERATING LLC 15981 DHC "13" SPRABERRY (TREND AREA) TRP OPERATING LLC 16687 DHC 13 UNIT SPRABERRY (TREND AREA) TRP OPERATING LLC 18533 DIANA SPRABERRY (TREND AREA) COG OPERATING LLC 15875 DIANA 149 "A" SPRABERRY (TREND AREA) COG OPERATING LLC 16345 DIANA149 "B" SPRABERRY (TREND AREA) COG OPERATING LLC 16964 DIANA152 SPRABERRY (TREND AREA) COG OPERATING LLC 16619 DIANA153 SPRABERRY (TREND AREA) COG OPERATING LLC 16448 DIERSCHKE LOW & BEHOLD (CROSSCUT 1) O'DELL, MITCHELL 15148 DIERSCHKE MILLERSVIEW, W. (CAMAR SD.) CAZAR ENERGY INC 15589 DIERSCHKE MILLERSVIEW, W. (CROSS CUT SD) CAZAR ENERGY INC 15757 DIERSCHKE UNIT ROWENA (CAPPS, LOWER) J V A OPERATING COMPANY, INC. 17913 DIERSCHKE-HOHENSEE SCHNIERS FORTUNE ENERGY, INC. 11488 DIETZ CREWS, SOUTH (GARDNER, UP.) SCOUT ENERGY MANAGEMENT LLC 17601 DIETZ, P. R. LINDEMANN (GARDNER SAND) VANCO OIL & GAS CORP. 00810 DIETZ, W. H.-HAZEL VANDERLAAN-FREEDMAN (GARDNER) LONE STAR PRODUCTION 11329 DIRK SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16462 DIRK "A" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16644 DIVIDE DRAW SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17878 DIVIDE DRAW A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17989 DIVIDE DRAW Y SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19972 DIVIDE DRAW Z SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19973 DIVIDE DRAW 98 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20049 DIVIDE-SCOTT A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19203 DIVIDE-SCOTT B SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19753 DIVIDE-SCOTT C SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19204 DIVIDE-SCOTT D SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19754 DIVIDE-SCOTT E SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19749 DIVIDE-SCOTT F SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20032


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ DIVIDE-SCOTT G SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20026 DIVIDE-SCOTT H SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20027 DIVIDE-SCOTT I SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20062 DIVIDE-SCOTT J SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20063 DIVIDE-SCOTT K SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20038 DIVIDE-SCOTT L SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20055 DIVIDE-SCOTT M SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20058 DIVIDE-SCOTT N SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20064 DIVIDE-SCOTT O SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20034 DIVIDE-SCOTT P SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20037 DIVIDE-SCOTT T SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19707 DIVIDE-SCOTT U SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19708 DIVIDE-SCOTT V SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19709 DIVIDE-SCOTT W SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19588 DIVIDE-SCOTT X SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19607 DIVIDE-SCOTT Y SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19632 DIVIDE-SCOTT Z SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19589 DIXON SPRABERRY (TREND AREA) APACHE CORPORATION 08069 DIXON "A" BENEDUM (ELLENBURGER) EARTHSTONE OPERATING, LLC 15325 DIXON "A" SPRABERRY (TREND AREA) APACHE CORPORATION 08276 DIXON TALLEY RE 1199 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19046 DODSON RANCH SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 16715 DOGWOOD SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 20150 DOLLIE BENEDUM (FUSSELMAN) PIONEER NATURAL RES. USA, INC. 08412 DOLLIE SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12392 DOLLIE "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10256 DOLLIE "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09090 DOLLIE "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09396 DOLLIE "D" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11489 DOLLIE "E" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12590 DOLLIE "F" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13005 DOLLIE RUTH "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11439 DOLORES SPRABERRY (TREND AREA) COG OPERATING LLC 17554 DON PFLUGER DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 20052 DON SHIMMON WILDCAT TEXAS INTERNATIONAL RESOURCE LLC 18005 DONLEY HALL (SAN ANDRES) ELCO OIL & GAS, INC. 18006 DONOHOE "Q" WADY (CANYON SAND) ANDERSON, JAMES K. INC. 15954 DORCUS SPRABERRY (TREND AREA) SM ENERGY COMPANY 15489 DORCUS SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17713 DORCUS JANEY (SA) A SPRABERRY (TREND AREA) SM ENERGY COMPANY 18893 DORCUS JANEY (SA) B SPRABERRY (TREND AREA) SM ENERGY COMPANY 18894 DORCUS JANEY (SA) C SPRABERRY (TREND AREA) SM ENERGY COMPANY 19361 DORCUS JANEY (SA) D SPRABERRY (TREND AREA) SM ENERGY COMPANY 19363 DORCUS JANEY (SA) E SPRABERRY (TREND AREA) SM ENERGY COMPANY 19396 DORCUS JANEY (SA) F SPRABERRY (TREND AREA) SM ENERGY COMPANY 19479 DORCUS JANEY (SA) G SPRABERRY (TREND AREA) SM ENERGY COMPANY 19447 DORCUS JANEY (SA) H SPRABERRY (TREND AREA) SM ENERGY COMPANY 19437 DORCUS JANEY (SA) M SPRABERRY (TREND AREA) SM ENERGY COMPANY 19472 DORCUS JANEY (SA) N SPRABERRY (TREND AREA) SM ENERGY COMPANY 19438 DORCUS JANEY (SA) O SPRABERRY (TREND AREA) SM ENERGY COMPANY 19471 DORCUS JANEY (SA) P SPRABERRY (TREND AREA) SM ENERGY COMPANY 19435


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ DORCUS JANEY (SA) Q SPRABERRY (TREND AREA) SM ENERGY COMPANY 19470 DORCUS JANEY (SA) W SPRABERRY (TREND AREA) SM ENERGY COMPANY 19613 DORCUS JANEY (SA) X SPRABERRY (TREND AREA) SM ENERGY COMPANY 19597 DORCUS JANEY (SA) Y SPRABERRY (TREND AREA) SM ENERGY COMPANY 19593 DORCUS JANEY ALLOCATION SPRABERRY (TREND AREA) SM ENERGY COMPANY 18828 DORIS SPRABERRY (TREND AREA) COG OPERATING LLC 15580 DOROTHY SPRABERRY (TREND AREA) COG OPERATING LLC 15683 DOROTHY SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14320 DOROTHY A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19626 DOROTHY B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19541 DOROTHY C SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19515 DOROTHY E SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19542 DOROTHY F SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19594 DOROTHY FIELD JUNE ANN (PENNSYLVANIAN) TXP, INCORPORATED 19717 DOROTHY G SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19742 DOROTHY H SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19648 DOROTHYP1 SPRABERRY (TREND AREA) COG OPERATING LLC 17409 DOROTHYP2 SPRABERRY (TREND AREA) COG OPERATING LLC 17716 DOSS GIEBEL SLACK (STRAWN LIME) BUSTAMANTE OIL COMPANY 12739 DOSS JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 15851 DOSS SWD GIEBEL SLACK (STRAWN LIME) TAG OPERATING COMPANY, INC. 16329 DOSS, WANDA C. "21" SPRABERRY (TREND AREA) DE3 OPERATING LLC 11011 DOSS, WANDA C. "21A" SPRABERRY (TREND AREA) DE3 OPERATING LLC 17214 DOUBLE T RANCH OP-69 LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 18242 DOUGLAS -22- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14031 DOUGLAS -27- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14017 DOUGLAS -27A- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14019 DOUGLAS -34- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14022 DOUGLAS, -28- SPRABERRY (TREND AREA) APACHE CORPORATION 13913 DOUGLAS, CARA SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 01515 DOUGLAS, CARA "10" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08318 DOUGLAS, CARA "10A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11946 DOUGLAS, CARA "29" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14241 DOUGLAS, N. L. -28- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14013 DRENNAN BALLINGER, WEST (CAPPS) DRENNAN OIL L.L.C. 16787 DRENNAN TRUST ELM CREEK (PALO PINTO) RING ENERGY, INC. 18440 DRIVER E28P SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20238 DRIVER E28Q SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20300 DRIVER E28R SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20247 DRIVER W28P SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20193 DRIVER W28Q SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20200 DRIVER W28R SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20196 DRIVER 27 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 21036 DRIVER 29 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20874 DUDLEY RANCH #408 THE TRINITY (ODOM) PURVIS OPERATING CO. 14678 DUFF SPRABERRY (TREND AREA) HENRY RESOURCES LLC 07417 DUFF, A. H. ESTATE DOVE CREEK (CANYON -D-) TREK RESOURCES, INC. 07973 DUFF, A. H. ESTATE "A" DOVE CREEK (CANYON -D-) TREK RESOURCES, INC. 08045 DUFF, WALTER JU-JAN-JAC (STRAWN) JOHN E. MEADOR ESTATE 07044 DUNCAN-STUMHOFFER SPRABERRY (TREND AREA CL. FK.) DIAMONDBACK E&P LLC 02736 DUNLAP 12 AMERICAN (SPRABERRY B) PRIMAL ENERGY CORPORATION 09163


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ DUNLAP,MRS. RAY-SEC. 91, BLK.1 AMERICAN (SPRABERRY B) DAMERON PETROLEUM CORP. 09156 DUSEK SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17067 DUSEK SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12542 DUSEK STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 16709 DUSEK "A" T.W.P. (CROSS CUT SAND) TKP PETROLEUM, INC. 13458 DUSEK A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17316 DUSEK SWD SPRABERRY (TREND AREA) MILESTONE ENVIRO SERVICES, LLC 19625 DUSEK 4 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17817 DUSEK 44 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17858 DUSEK 45 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17784 DUSEK 45 AND 4 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19419 DUSEK 45-4 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18959 DUWE CELERY (STRAWN 2975) OTEX LLC 14692 E C TRUST WILDCAT GRINGO OPERATING COMPANY, INC. 17234 E DAVIDSON 48A SPRABERRY (TREND AREA) OVINTIV USA INC. 19490 E DAVIDSON 48B SPRABERRY (TREND AREA) OVINTIV USA INC. 19489 E GLASS C 37-36 (ALLOC-B) SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 18725 E JOST OIL UNIT-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17795 E JOST OIL UNIT-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17920 E. J. JOHNSON "45" SPRABERRY (TREND AREA) DE3 OPERATING LLC 17762 E.C. RAWLINGS NDUGU (CROSS-CUT) BOAZ ENERGY II OPERATING, LLC 17901 E.M. CLANCY FORT MCKAVITT (LIME 4150) BOAZ ENERGY II OPERATING, LLC 18989 EAGLE DRAW "10" NOELKE (WOLFCAMP, LOWER) AVAD OPERATING, LLC 15168 EAGLE DRAW "11" NOELKE (WOLFCAMP, LOWER) AVAD OPERATING, LLC 15133 EAGLE DRAW A NOELKE (WOLFCAMP, LOWER) AVAD OPERATING, LLC 17510 EAGLE DRAW 15 HALFF AVAD OPERATING, LLC 15920 EAGLEHEAD 'A-A3' SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 20127 EAGLEHEAD 'C' A1 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19824 EAGLEHEAD 'C' A2 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19867 EAGLEHEAD 'C' A4 SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 20170 EAGLEHEAD A-A1 SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 20145 EAGLEHEAD A-A2 SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 20146 EAGLEHEAD B EAST LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 20964 EAGLEHEAD B WEST LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 20995 EAGLEHEAD C A3 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19864 EARL HANKAMER LIN (WOLFCAMP) HIBERNIA RESOURCES III, LLC 19029 EARLY ANDERGRAM (GARDNER, UPPER) CHIODO CORP. 10042 EAST MERCHANT SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 18843 EAST MERCHANT 25 SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19076 EAST RANKIN UNIT 3-27 SHEEP MOUNTAIN (CONSOLIDATED) HIBERNIA RESOURCES III, LLC 18044 EAST RANKIN UNIT 58-3 SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18039 ECKER WILDCAT ULTRA OIL & GAS, INC. 16535 ECKERT BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11310 ECKERT "A" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11311 ECKERT "36" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11303 ECKERT "444-A" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11309 ECKERT IR O1 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19045 ECKERT IR 01 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20559 ECKERT 1234 BAKER RANCH (CANYON) TOC ENERGY RESOURCES, LLC 13383 EDDLEMAN AMACKER-TIPPETT (WOLFCAMP) HUNT OIL COMPANY 13504 EDDLEMAN WILLRODE (BEND) HUNT OIL COMPANY 11914


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ EDDLEMAN WILLRODE (STRAWN) HUNT OIL COMPANY 05661 EDDLEMAN WILLRODE (WOLFCAMP) HUNT OIL COMPANY 11231 EDMISTON EDMISTON (LEONARD) SILVER OIL & GAS INC. 12361 EDMISTON PAGE, WEST (WOLFCAMP) OXY USA INC. 10612 EDMISTON "172" EDMISTON (LEONARD) SILVER OIL & GAS INC. 11724 EDMONDSON BYERS (GARDNER) EDMONDSON OIL & GAS 11654 EDMONDSON BYERS (GARDNER) EDMONDSON OIL & GAS 12346 EDMONDSON SHERATON (DOG BEND) HGN OPERATING I, LLC 17246 EDMONDSON "A" BYERS (GARDNER) ATF PETROLEUM INC. 11811 EDMONDSON, H. B. VANDERLAAN-FREEDMAN (GARDNER) EDMONDSON OIL & GAS 09877 EDNA JIM BURT, E. (GARDNER 4060) DBO OIL INCORPORATED 12056 EDWARDS SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16009 EDWARDS, HOPE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13928 EDWIN MT. SUSAN, S. (STRN. LIME 5250) SOMMER OIL & GAS, LLC 12067 EDWIN WINTERS, NW. (JENNINGS) HARDROCK RESOURCES INC. 18744 EGGEMEYER 30 SWD SPRABERRY (TREND AREA) ENVIRONMENTAL DSPL SYSTEMS, LLC 19282 EIGHTYNINE "A" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 11581 EIGHTYNINE "C" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11798 EISNER-CHRISTY "10" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16350 EISNER-CHRISTY "15" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16536 EL TEX VAUGHN PENERGY 02065 ELA, MISS -C- SPRABERRY (TREND AREA) APACHE CORPORATION 06848 ELA, MISS -D- SPRABERRY (TREND AREA) APACHE CORPORATION 06950 ELA, MISS -E- SPRABERRY (TREND AREA) APACHE CORPORATION 06977 ELAINE 1 PEGASUS (CONSOLIDATED) BAM PERMIAN OPERATING, LLC 18855 ELAINE 10 PEGASUS (CONSOLIDATED) PARSLEY ENERGY OPERATIONS, LLC 18896 ELAINE 12 PEGASUS (CONSOLIDATED) PARSLEY ENERGY OPERATIONS, LLC 19196 ELAINE 12 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18867 ELAINE 2 PEGASUS (CONSOLIDATED) PARSLEY ENERGY OPERATIONS, LLC 19205 ELAINE 42 PEGASUS (CONSOLIDATED) PARSLEY ENERGY OPERATIONS, LLC 18988 ELAINE 48 PEGASUS (CONSOLIDATED) BAM PERMIAN OPERATING, LLC 18993 ELAINE 48-1 PEGASUS (CONSOLIDATED) BAM PERMIAN OPERATING, LLC 19116 ELAINE 6 PEGASUS (CONSOLIDATED) PARSLEY ENERGY OPERATIONS, LLC 18829 ELDER, DAVE MCCAMEY XOG OPERATING LLC 00915 ELDER, DAVE (00853) MCCAMEY XOG OPERATING LLC 00853 ELDER, DAVE -A- MCCAMEY XOG OPERATING LLC 00857 ELDER, DAVE -A- (00906) MCCAMEY XOG OPERATING LLC 00906 ELDER, DAVE -C- MCCAMEY XOG OPERATING LLC 00907 ELDER, DAVE -D- MCCAMEY PLATFORM OPERATING, LLC 00908 ELDER, DAVE "B" MCCAMEY PLATFORM OPERATING, LLC 00854 ELDER, DAVE "E" MCCAMEY XOG OPERATING LLC 00931 ELDER, DAVE "F" MCCAMEY XOG OPERATING LLC 00937 ELDORADO VELREX (HENDERSON UPPER) VERDAD OIL & GAS CORPORATION 13401 ELEANOR 2 DAVIS (PENNSYLVANIAN) CHEVRON U. S. A. INC. 18606 ELEANOR 2 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19174 ELEANOR 2A DAVIS (PENNSYLVANIAN) CHEVRON U. S. A. INC. 18842 ELEANOR 2A KING MOUNTAIN, S. (ATOKA) CHEVRON U. S. A. INC. 18996 ELEANOR 2D DAVIS (PENNSYLVANIAN) CHEVRON U. S. A. INC. 18909 ELEANOR 2E DAVIS (PENNSYLVANIAN) CHEVRON U. S. A. INC. 18911 ELEANOR 35 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20194 ELEANOR 35A-26-A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20367


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ELIZABETH SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 15569 ELIZABETH A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16541 ELIZABETH B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16542 ELIZABETH C SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19343 ELIZABETH D SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19404 ELIZABETH H SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19192 ELKIN "19" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 14052 ELKIN "19" A SPRABERRY (TREND AREA) CROWNQUEST OPERATING, LLC 14848 ELKIN "29" "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14543 ELKIN 29 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13419 ELKINS BEDDO (GARDNER) 3-D OIL & GAS 18965 ELKINS MCLARTY (GOEN) CHEETAH INVESTMENTS, INC. 11166 ELKINS A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19411 ELKINS, W. E. BEDDO CDC SERVICES INC. 13468 ELKINS, W. E. MCLARTY (GOEN) DELTEX MINERALS INC. 11006 ELLA SPRABERRY (TREND AREA) OSBORN HEIRS COMPANY 18031 ELLA -114- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 14054 ELLA A SPRABERRY (TREND AREA) OSBORN HEIRS COMPANY 18955 ELLA HOUSTON "4" PAINT ROCK, W. (GOEN D) CONCHO OILFIELD SERV & OPER CO. 14643 ELLIE SPRABERRY (TREND AREA) COG OPERATING LLC 16859 ELLIE P1 SPRABERRY (TREND AREA) COG OPERATING LLC 18156 ELLIE 20-29-D SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20622 ELLIE 20C-29-G SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20919 ELLIOT SWD SPRABERRY (TREND AREA) DE3 OPERATING LLC 20453 ELLIOT, J. S. "48" BENEDUM (ELLENBURGER) DE3 OPERATING LLC 07640 ELLIOTT HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 18279 ELLIOTT "A" BENEDUM (DEVONIAN, GAS) APACHE CORPORATION 20136 ELLIOTT "C" BENEDUM (FUSSELMAN) APACHE CORPORATION 12218 ELLIOTT A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19664 ELLIS-KINOOK H & R (STRAWN 3490) VIATHON HYDROCARBONS, INC. 12783 ELLIS, C. M. FROG POND CREEK (COOK SAND) J & J SERVICES COMPANY 16049 ELLIS, C. M. H & R (GOEN LIME) J & J SERVICES COMPANY 11609 ELLWOOD JAMESON KATSCO ENERGY, INC. 09628 ELLWOOD ESTATE JAMESON REMUDA OPERATING COMPANY 06716 ELMIRA 34 DIAMOND A LIN (WOLFCAMP) FORELAND OPERATING, LLC 18945 ELMIRA 34-DIAMOND LIN (WOLFCAMP) FORELAND OPERATING, LLC 18824 ELTA MURPHEY '52' LIN (WOLFCAMP) TRACKER RESOURCE DEV III, LLC 18526 ELWOOD (16-21) SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19670 ELWOOD #16-21 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19418 ELWOOD '16-21' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19356 ELWOOD 16 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18578 ELWOOD 16 AND 21 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19358 ELWOOD 16-21 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18778 EMERALD A SHEEP MOUNTAIN (CONSOLIDATED) IRON ORCHARD OPERATING LLC 18255 EMERALD B SHEEP MOUNTAIN (CONSOLIDATED) IRON ORCHARD OPERATING LLC 20143 EMILY AMACKER-TIPPETT (WOLFCAMP) SUMMIT PETROLEUM LLC 16061 EMILY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19087 EMILY A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18410 EMMA A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 20164 EMMA LOU SPRABERRY (TREND AREA) COG OPERATING LLC 17553 EMMA LOU UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 20214


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ENDICOTT SPRABERRY (TREND AREA) TRP OPERATING LLC 16340 ENDICOTT "C" SPRABERRY (TREND AREA) TRP OPERATING LLC 17202 ENERGY EQUITY SWD SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15471 ENERGY VAUGHN "25" TEXON, S (QUEEN) ENERGY PRODUCTION CORPORATION 13482 ENGLAND WINTERS, NORTH (PALO PINTO) WINDOW OPERATING CO., THE 18280 ENOCHS OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18393 ENOS CHEANEY (HARKEY) GOLDEN SPECIALTIES OIL & GAS 07680 ER UNIT 3-3625 SPRABERRY (TREND AREA) HUNT OIL COMPANY 19516 ER UNIT 3-3625 50 SPRABERRY (TREND AREA) HUNT OIL COMPANY 20864 ER UNIT 58-3 SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18624 ERIC A. LEVINE WILDCAT TEXAS INTERNATIONAL RESOURCE LLC 18968 ERIN SPRABERRY (TREND AREA) TRP OPERATING LLC 17102 ERNST DORMAN, WEST (GOEN) CEDAR OIL COMPANY 17457 ERNST WINTERS, NORTH (GOEN LIME) LONE STAR PRODUCTION 20255 ERNST, A. C. H F B (KING SAND) JOHNSON, J. J. CO. 08344 ESN BSA BSA (STRAWN SAND) MAGNUM OILFIELD SERVICES LLC 16623 ESN KEYES MADORA (TILLERY) RHB EXPLORATION & PRODUCTION,LLC 16095 ESN KEYES MADORA, E. (HARKEY 4600) RHB EXPLORATION & PRODUCTION,LLC 18527 ESN PROBANDT HARRIETT LIPAN FLATS PRODUCTION, L.L.C. 16722 ESPINOZA 10 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20500 ESPY "A" DANNY MAE (LOWER CISCO "A") DELFIN OPERATING, LLC 17559 ESPY "A" SAMMIE JEANNE (CROSSCUT) DELFIN OPERATING, LLC 17573 ESPY-RUSSELL 'A' UNIT DANNY MAE (LOWER CISCO "A") DELFIN OPERATING, LLC 18026 ESPY-RUSSELL UNIT DANNY MAE (LOWER CISCO "A") DELFIN OPERATING, LLC 17951 ESTELLE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18126 ESTELLE COUNCIL -70- SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 18238 ESTEP MCCAMEY XOG OPERATING LLC 00941 ESTEP "A" MCCAMEY XOG OPERATING LLC 00862 ETHEL SPRABERRY (TREND AREA) COG OPERATING LLC 17276 EUBANKS ANDERGRAM (FRY) TKP PETROLEUM, INC. 18231 EUBANKS ANDERGRAM (GARDNER) TKP PETROLEUM, INC. 16954 EUBANKS WINTERS, SW. (GARDNER LIME) ENRICH OIL CORPORATION 19229 EUBANKS, E. L. WFM (GOEN LIME) ENRICH OIL CORPORATION 10107 EUBANKS, ELMA LEE WFM (GOEN LIME) HARTOIL CORPORATION 09719 EUHUS BALLINGER, SOUTH (CAPPS LIME) VIATHON HYDROCARBONS, INC. 14493 EV COOPER FORT CHADBOURNE GRIZZLY OP OF DELAWARE, LLC 16446 EVANS BALLINGER (CANYON SAND) WINDOW OPERATING CO., THE 19986 EVANS FISHER-GOEBEL (GRAY SAND) LARIAT LAND & EXPLORATION, INC. 12435 EVANS MOTLEY, NORTH (GOEN LIME) WINDOW OPERATING CO., THE 18938 EVANS ROCK PEN (CANYON) ARKLAND PRODUCING CO., INC. 10952 EVANS SPRABERRY (TREND AREA) APACHE CORPORATION 07708 EVANS "A" ROCK PEN (CANYON) ARKLAND PRODUCING CO., INC. 11185 EVANS "A" SUGG-IRION (WICHITA-ALBANY) ARKLAND PRODUCING CO., INC. 14975 EVANS "B" ROCK PEN (CANYON) CLEAR WATER INC. 11997 EVELYNE SPRABERRY (TREND AREA) COG OPERATING LLC 16767 EXXON COWDEN "B" SPRABERRY (TREND AREA) APACHE CORPORATION 08702 EXXON COWDEN "C" SPRABERRY (TREND AREA) APACHE CORPORATION 09070 EXXON COWDEN "E" SPRABERRY (TREND AREA) APACHE CORPORATION 11135 EXXON FEE "C" TODD, DEEP (ELLENBURGER) O'RYAN OIL AND GAS 02022 EXXON-COWDEN SPRABERRY (TREND AREA) APACHE CORPORATION 08304 EXXON-COWDEN "D" SPRABERRY (TREND AREA) APACHE CORPORATION 09033


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ EXXON-DOUGLAS SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10905 F. VENEGAS SPRABERRY (TREND AREA) VISION EXPLORATION LLC 18276 FANDANGO SLEDGEHAMMER (FUSSELMAN) LEGACY RESERVES OPERATING LP 13902 FARMAR - SUGG ROCK PEN (CLEARFORK) ARMOR PETROLEUM, INC. 15155 FARMAR -71- ANDREW A. (CANYON) J & J WELL SERVICE, INC. 11590 FARMAR "44-10" ROCK PEN (CANYON) FRONT STREET OPERATING, LLC 07779 FARMAR A LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 18322 FARMAR AA POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19645 FARMAR AB POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19647 FARMAR AC POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 20213 FARMAR AD POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 20259 FARMAR AF POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19540 FARMAR AG POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19539 FARMAR AH POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19786 FARMAR B LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 18447 FARMAR BB POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19383 FARMAR BC POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 20191 FARMAR BD POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19073 FARMAR BE POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 18922 FARMAR BF POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19853 FARMAR BG POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19269 FARMAR C LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 18840 FARMAR CA POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19744 FARMAR CB POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19745 FARMAR CC POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19703 FARMAR CD POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19663 FARMAR D LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 18448 FARMAR 2 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17237 FARMAR 2 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17507 FARMAR 44 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17624 FARMAR-SUGG ROCK PEN (CANYON) TRACKER RESOURCE DEV III, LLC 09439 FARMAR-SUGG VAN KEUREN (SAN ANGELO) ARMOR PETROLEUM, INC. 13109 FARMAR-SUGG "22" ROCK PEN (CLEARFORK) ARMOR PETROLEUM, INC. 15190 FARMAR-SUGG 21 ROCK PEN (CANYON) TRACKER RESOURCE DEV III, LLC 10419 FARMAR-SUGG 23 ROCK PEN (CANYON) TRACKER RESOURCE DEV III, LLC 10813 FARMAR-SUGG 23 VAN KEUREN (SAN ANGELO) ARMOR PETROLEUM, INC. 11235 FARMAR-SUGG 38 ROCK PEN (CANYON) TRACKER RESOURCE DEV III, LLC 11118 FARMER -56- ROCK PEN (CANYON) FRONT STREET OPERATING, LLC 06902 FARMER -57- ROCK PEN (CANYON) FRONT STREET OPERATING, LLC 07207 FARMER "43-10" ROCK PEN (CANYON) FRONT STREET OPERATING, LLC 08089 FARMER "44" ROCK PEN (CANYON) FRONT STREET OPERATING, LLC 07373 FARRINGTON CHRISTI (CANYON 6800) RASMUSSEN, TOM 06099 FARRINGTON, GERTRUDE CHRISTI (CANYON 6800) RAMTEX ENERGY LLC 08661 FAUDREE LAVAN (WOLFCAMP) SEM OPERATING COMPANY LLC 17118 FAUDREE LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17666 FAULKNER, H.M. -B- FORT TERRETT RANCH (CANYON 2400) ROCKING R INVESTMENTS, INC. 07172 FAWN SIXTY-SEVEN (CANYON) DLB OIL & GAS INC. 08382 FAYE SPRABERRY (TREND AREA) COG OPERATING LLC 15949 FENNEL UNIT FENNELL (CISCO REEF) RICE DRILLING COMPANY 15906 FENNELL 'A' FENNELL (KING SAND) CEDAR OIL COMPANY 18368 FENNELL 'B' FENNELL (CISCO REEF) CEDAR OIL COMPANY 18366


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ FENNELL 'C' FENNELL (STRAY SAND-CISCO) CEDAR OIL COMPANY 02884 FENNELL 'D' FENNELL (BRECKENRIDGE) CEDAR OIL COMPANY 05427 FENNELL UNIT FENNELL (BRECKENRIDGE) RICE DRILLING COMPANY 15907 FENNELL UNIT FENNELL (CISCO REEF) WTI OPERATING, LLC 05425 FENNELL UNIT FENNELL (KING SAND) RICE DRILLING COMPANY 15908 FENNELL UNIT FENNELL (KING SAND) WTI OPERATING, LLC 05426 FERGUSON, GARY LINDEMANN (JENNINGS) DBO OIL INCORPORATED 13838 FERREL BUSHER (MORRIS) SHOCO PRODUCTION LLC 19140 FERREL WINTERS, SW. (CAPPS) SHOCO PRODUCTION LLC 19081 FERREL WINTERS, SW. (GARDNER SD., LO.) SHOCO PRODUCTION LLC 18976 FIELD, J. W., ET AL ARDEN, S. (CANYON SD.) TXP, INCORPORATED 05573 FIELDS GRAY GOOSE (ADAMI GARDNER) 3 AMIGOS OIL CO. 17195 FIELDS, A. D. I.A.B., SOUTH (CANYON) SCHAARON INTERNATIONAL ENERGY 06316 FIFTY - ONE VELREX (HENDERSON UPPER) DISCOVERY OPERATING, INC. 14616 FINNIGAN '29' REGAL (WOLFCAMP) COPPERTOP 19699 FIREFLY SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 17788 FIREFLY A SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 16578 FIREFLY B DAI (WOLFCAMP) SUMMIT PETROLEUM LLC 16693 FIREFLY B SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20615 FIVEASH HATCHELL, WEST (SERRATT) WINDOW OPERATING CO., THE 19182 FIVEASH-GREEN UNIT A WFM (GOEN LIME) G & F OIL, INC. 18949 FLORENCE SPRABERRY (TREND AREA) COG OPERATING LLC 16311 FLORENCE HAMILL 26 PHYLLIS SONORA (CLEARFORK) TUG HILL OPERATING, LLC 18135 FLORENCE 16 AMACKER-TIPPETT, W. (BEND) SUMMIT PETROLEUM LLC 15238 FLORENCE 27 PHYLLIS SONORA (CLEARFORK) TUG HILL OPERATING, LLC 20092 FLYING -B- RANCH RIVES (SAN ANDRES) MAVERICK OPERATING, LLC 20304 FLYING B RANCH RIVES (SAN ANDRES) MAVERICK OPERATING, LLC 20112 FOREST WEGER (SAN ANDRES) OVERTON PARK OIL & GAS LP 11626 FORRISTAL B TIPPETT, WEST (HUECO) LEGACY RESERVES OPERATING LP 16285 FORRISTALL -A- TIPPETT RED TANK RESOURCES, LLC 02293 FORRISTALL -B- TIPPETT RED TANK RESOURCES, LLC 02500 FORRISTALL -B- TIPPETT (LEONARD, LOWER) LEGACY RESERVES OPERATING LP 04896 FOSTER OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18137 FOSTER PROBANDT (CANYON) STEPHENS & JOHNSON OPERATING CO. 14150 FOSTER TIPPETT, W. (WOLFCAMP 5050) OLSEN ENERGY INC. 06064 FOSTER -A- TIPPETT (LEONARD, LOWER) OLSEN ENERGY INC. 06155 FOUCH SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14226 FOUR CORNERS TXL FEE SPRABERRY (TREND AREA) CHEVRON U. S. A. INC. 17726 FOUR CORNERS TXL FEE 'A' SPRABERRY (TREND AREA) CHEVRON U. S. A. INC. 18378 FOUR CORNERS TXL FEE SWD AMACKER-TIPPETT (SAN ANDRES) CHEVRON U. S. A. INC. 17529 FOWLER-NEAL BENEDUM (DEVONIAN, GAS) SABLE PERMIAN RESOURCES, LLC 13697 FOXTROT PROBANDT (CANYON) SIANA OIL & GAS 15924 FRAN "S" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16752 FRANCES SPRABERRY (TREND AREA) SM ENERGY COMPANY 16849 FRANCISCA J.P.D. (GOEN LM.) CEDAR OIL COMPANY 15973 FRANCO DEVONIAN UNIT FRANCO (DEVONIAN) CHEVRON U. S. A. INC. 10890 FRANK POWELL SWD SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20226 FRANK POWELL 20-29 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20101 FRANK POWELL 30-31 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20849 FRANK-MORGAN E27A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20797 FRANK-MORGAN E27B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20796


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ FRANK-MORGAN E27C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20795 FRANK-MORGAN W27A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20794 FRANK-MORGAN W27B SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20773 FRANKE MILLERSVIEW, W. (CAMAR SD.) CAZAR ENERGY INC 18503 FRANKE UNIT MILLERSVIEW, W. (CAMAR SD.) CAZAR ENERGY INC 18121 FRANKE/HUFF UNIT MILLERSVIEW, W. (CAMAR SD.) CAZAR ENERGY INC 16040 FRANKLIN '22-22A' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19367 FRANKLIN 22 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18579 FRANKLIN 22-22A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19060 FRANKLIN 22A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18765 FRANKLIN 22B SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18757 FRANKLIN 22B AND 22 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19417 FRANKLIN 22B-22 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19022 FRASER SPRABERRY (TREND AREA) COG OPERATING LLC 17170 FREDRIC W. POE WILMETH, SE. (GARDNER LIME) ENRICH OIL CORPORATION 18197 FREEMAN, W. T. FREEMAN CDJ OIL CO. 09993 FREITAG SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18053 FREY, CLIFFORD BEDDO, EAST (SERRATT) B & M OIL FIELD SERVICES 08753 FRIEND FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 08101 FRIEND WEGER, NORTH ENDEAVOR ENERGY RESOURCES L.P. 04829 FRIEND -A- FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 08413 FRIEND "B" WEGER, NORTH ENDEAVOR ENERGY RESOURCES L.P. 09578 FRIEND "ST" A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11401 FRIEND "ST" 30A UNIT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11157 FRIEND, W. E. -A- WEGER, NORTH ENDEAVOR ENERGY RESOURCES L.P. 02111 FRIEND, W. E. -B- WEGER, NORTH ENDEAVOR ENERGY RESOURCES L.P. 02379 FRITZ MILLERSVIEW, W. (CAMAR SD.) CAZAR ENERGY INC 14606 FRITZ MILLERSVIEW, W. (CROSS CUT SD) CAZAR ENERGY INC 14776 FRIULANO SHEEP MOUNTAIN (CONSOLIDATED) CAMBRIAN MANAGEMENT, LTD. 17689 FROST, ADELE RAY (CISCO) CLEAR FORK, INCORPORATED 09914 FT. CHADBOURNE ODOM LIME UNIT FORT CHADBOURNE GRIZZLY OP OF DELAWARE, LLC 00506 FT. TERRETT RANCH /CANYON LM/ U. FORT TERRETT RANCH (CANYON 2425) ROCKING R INVESTMENTS, INC. 17967 FT. TERRETT RANCH /CANYON LM/ U. FORT TERRETT RANCH (CANYON 2800) ROCKING R INVESTMENTS, INC. 05803 FUCHS D 46-39 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20024 FUCHS D 46-39 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20025 FUCHS D 46-39 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18990 FUNK FUNK (SAN ANDRES) PRESTONWOOD OPERATING LLC 17419 FUNK, JOE H-J (STRAWN) BOAZ ENERGY II OPERATING, LLC 00546 FUNKHOUSER '20B' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17845 FUNKHOUSER "20" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17065 FUNKHOUSER "20" A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17692 FURMINT SPRABERRY (TREND AREA) CAMBRIAN MANAGEMENT, LTD. 18591 GAINER DARK HORSE (GOEN LIME) DAMRON ENERGY, LLC 13114 GAINER "A" DARK HORSE (GOEN LIME) HORIZON EXPLORATION SERVICES 16050 GAINER-SCHUMANN UNIT NEW YEAR '95 (GOEN "C") DAMRON ENERGY, LLC 13850 GAINER, N. DARK HORSE (GOEN LIME) DAMRON ENERGY, LLC 16381 GALATIAN CLARKE (GARDNER LIME) GRIGGS, VICTOR C. 12565 GALATIAN COCKATOO (GARDNER) DEL MAR ENERGY, INC. 18261 GALATIAN "B" CLARKE (GARDNER LIME) GRIGGS, VICTOR C. 08680 GALATIAN, R. H. CLARKE (GARDNER LIME) GRIGGS, VICTOR C. 13112 GANZE "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12081


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ GARDNER BRILEY (PALO PINTO) R & R WELL SERVICE, INC. 08301 GARDNER EXOC (980) B & B OIL, INC. 13711 GARDNER "49" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17580 GAREY RANCH HOLLOW CREEK (DOG BEND) FOSSIL PETROLEUM LLC 20318 GARNER "2" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04371 GARNER A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18414 GARNER, JACK SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15899 GARRETT WINTERS (CAPPS) PIONEER ENERGY CORPORATION 14448 GARVIN, RALPH I.A.B., SOUTH (CANYON) MULLOY OPERATING, INC. 06220 GARY BALLINGER, WEST (CAPPS) OTEX LLC 16118 GARY BALLINGER, WEST (JENNINGS) OTEX LLC 16027 GARY BALLINGER, WEST (MORRIS SD) OTEX LLC 16903 GARY-WALLER UNIT BALLINGER, WEST (JENNINGS) OTEX LLC 16324 GASSIOT EXOC (980) REBCO OIL, INC. 18463 GASSIOT -A- EXOC (980) REBCO OIL, INC. 19531 GBG FARMER (SAN ANDRES) L & M OPERATING, INC. 12282 GEASLIN NW "204" GEASLIN (WOLFCAMP) FASKEN OIL AND RANCH, LTD. 15065 GEASLIN SW "206" GEASLIN (WOLFCAMP) FASKEN OIL AND RANCH, LTD. 15594 GEISTMAN, L. E. OVERMAN (GARDNER) FLAMINGO GAS & OIL 11001 GENIE SPRABERRY (TREND AREA) COG OPERATING LLC 15744 GENTRY SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04659 GERHART J. A. D. (GOEN) LONE STAR PRODUCTION 15779 GERONIMO SWD SPRABERRY (TREND AREA) AQUA TERRA PERMIAN, LLC 17933 GERONIMO SWD 2 JOHN SCOTT (GRAYBURG) WILHA, JOHN 20473 GETTY UNIVERSITY BENEDUM (FUSSELMAN) DE3 OPERATING LLC 09987 GETTY-UNIVERSITY (M) 5 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 10519 GETTY-UNIVERSITY (M) 5 "A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 11610 GIDDINGS ESTATE FEE SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11402 GIDNEY, E. D. 37B SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15084 GIDNEY, E.B. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14058 GIDNEY, J. W. SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 14055 GLASS S.S.R. (CANYON, UPPER) WRAGE ENERGY SERVICES LLC 08927 GLASS SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06483 GLASS RANCH A SPRABERRY (TREND AREA) MOMENTUM ENERGY CORPORATION 16711 GLASS RANCH B SPRABERRY (TREND AREA) MOMENTUM ENERGY CORPORATION 16790 GLORIA SPRABERRY (TREND AREA) COG OPERATING LLC 15576 GOLDEN AMACKER-TIPPETT, SW (WOLFCAMP) ENDEAVOR ENERGY RESOURCES L.P. 14358 GOLDENROD 13 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 20051 GOODALL, ROSS MAYNARD CREEK (STRAWN) IRA TESTERS 11207 GOODWIN WFM (GOEN LIME) ENRICH OIL CORPORATION 19560 GORDON "A" BENEDUM (ELLENBURGER) APACHE CORPORATION 14522 GOTTSCHALK-BRYAN POE (GARDNER LIME UPPER) LECLAIR OPERATING, L.L.C. 10884 GOTTSCHALK, D. PIONEER-RATTLESNAKE (L. FRY SD.) PIONEER ENERGY CORPORATION 14342 GOTTSCHALK, D. 3 CREWS, SW. (FRY, LO.) UPSTREAM PROPERTIES, LLC 14497 GOTTSCHALK, E. H & R (CANYON) TRIANGLE P DEVELOPMENT CORP. 08957 GOTTSCHALK, E. LINDEMANN (JENNINGS) UPSTREAM PROPERTIES, LLC 13574 GOULD "A" SPRABERRY (TREND AREA) MOONTOWER RESOURCES OP, LLC 07053 GOULD "A" SRH (CLEAR FORK) MOONTOWER RESOURCES OP, LLC 14735 GOULD, LOU SPRABERRY (TREND AREA) CHARGER SHALE OIL OPERATING, LLC 06643 GOULD, LOU SRH (CLEAR FORK) CHARGER SHALE OIL OPERATING, LLC 14649 GPS SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16019


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ GPS ZZ TOP (FUSSELMAN) PRIME OPERATING COMPANY 15786 GRACE '45-1' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19915 GRACE A SPRABERRY (TREND AREA) R 40 EXC HIBERNIA RESOURCES III, LLC 21000 GRACE B SPRABERRY (TREND AREA) R 40 EXC HIBERNIA RESOURCES III, LLC 20965 GRACE C SPRABERRY (TREND AREA) R 40 EXC HIBERNIA RESOURCES III, LLC 20988 GRACE 45 AND 1 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19921 GRACE 45-1 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19461 GRACE 7 DEMERE KENNEMER, W. (ELLENBURGER) GRACE 7 PROPERTIES, LTD. 18387 GRACELYN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18607 GRAF, J. H. NCT-1 JACK HERBERT (FUSSELMAN) RAYDEN 08467 GRAF, J. H. NCT-4 HAZEL (SPRABERRY) RAYDEN 02390 GRAF, J. H., NCT-1 JACK HERBERT (DEVONIAN) RAYDEN 03601 GRAF, J.H. NCT-1 JACK HERBERT (STRAWN PENN.) SUMMIT PETROLEUM LLC 13603 GRAHAM SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14176 GRAHAM SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17027 GRAHAM -A- SHANNON (SAN ANDRES) REMUDA OPERATING COMPANY 04399 GRAHAM -B- SHANNON (SAN ANDRES) REMUDA OPERATING COMPANY 04448 GRAHAM -C- SHANNON (SAN ANDRES) REMUDA OPERATING COMPANY 04533 GRAHAM RANCH NOELKE (WOLFCAMP, LOWER) BUSTAMANTE OIL COMPANY 16573 GRAHAM 186-187 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18729 GRAHAM 186-187 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19581 GRAHAM 186-187 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19580 GRAHAM 186-187 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18730 GRANDSTAFF "B" HERCULES CLUB (CROSSCUT "A") ENCINO OPERATING COMPANY, INC. 13262 GRANDSTAFF, GEORGE LELA (GUNSIGHT) O'DELL, MITCHELL 12567 GRANDSTAFF, GEORGE LELA (KING) O'DELL, MITCHELL 12299 GRANDSTAFF, GEORGE "A" LELA (GUNSIGHT) O'DELL, MITCHELL 13101 GRASTON SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19316 GRAY, C. C. BEDDO (GARDNER) 3-D OIL & GAS 15037 GRAY, C. C. DEANIE B. (JENNINGS SD.) 3-D OIL & GAS 15049 GRAYSON, H. S. GRAYSON TROJAN OIL COMPANY, LLC 00542 GREATHOUSE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01606 GREATHOUSE -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01607 GREATHOUSE -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01608 GREATHOUSE "44" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11943 GREATHOUSE 13-12 A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20169 GREATHOUSE 13-12 D SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20131 GREATHOUSE 13-14 C SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20134 GREATHOUSE, B. R. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08058 GREEN, J. B. ARENA (KING SAND) CONCHO OILFIELD SERV & OPER CO. 13092 GREENLEE HEIRS SPRABERRY (TREND AREA) DE3 OPERATING LLC 01695 GREER -20- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14015 GREER "32" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14182 GREER "5" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04629 GREER ESTATE SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04589 GREER SIKES 42-41 A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20246 GREER SIKES 42-41 B SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20261 GREER SIKES 42-41 C SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20241 GREER SIKES 42-41 D SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20243 GREER, O. L. SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 13955 GREER, O. L., -C- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13930


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ GREER, O.L. -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13929 GREG MADDUX 31-32 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19801 GREG MADDUX 31-32-D SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20271 GRESSETT, L. WICO (JENNINGS 3730) SMITH PIPE OF ABILENE 07873 GRIFFIN 19-30-A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20992 GRIFFIS SPILLKIRK (GARDNER) PIONEER ENERGY CORPORATION 15083 GRIFFITH B 2-4 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19082 GRIFFITH-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18671 GRIMES A 19-18 SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 20401 GRIMES B 19-18 SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 20402 GRINDSTAFF BEDDO 3-D OIL & GAS 11148 GRINDSTAFF "A" DEANIE B. (JENNINGS SD.) 3-D OIL & GAS 14654 GRISSOM ENOCH JOHNSON (MORRIS SAND) THORNTON, T. A. OIL CO. 11271 GROHMAN CREE-SYKES (GARDNER, UPPER) ATLAS OPERATING LLC 16092 GUINN ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 10363 GUINN "A" ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 09223 GUNSLINGER 18 LIN (WOLFCAMP) FORELAND OPERATING, LLC 19027 GUNTER SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 01776 GUTHRIE - DUNBAR UNIT HELUMA, SE (DEVONIAN) LEGACY RESERVES OPERATING LP 10205 GUTHRIE-DUNBAR "A" UNIT HELUMA, SE (DEVONIAN) LEGACY RESERVES OPERATING LP 11183 G0TTSCHALK, D. 2 LINDEMANN (JENNINGS) ALARON ENERGY, INC. 14383 H & R ADAMI #2 SPILL (CAPPS UPPER) PIONEER ENERGY CORPORATION 09072 H-C FISHER-GOEBEL (GRAY SAND) RYHOLLAND FIELDER, INC 17545 HABY SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14187 HABY -C- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17696 HABY -D- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17740 HABY '13' SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17991 HABY "7" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 10469 HABY "7A" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17207 HABY, M. E. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14177 HACIENDA SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16233 HAGELSTEIN OZONA, NW. (CANYON) EPIC PERMIAN OPERATING, LLC 04354 HAGELSTEIN OZONA, NW. (CANYON) THOMPSON, J. CLEO 09812 HAGELSTEIN "A" OZONA, NW. (CANYON) THOMPSON, J. CLEO 04215 HAIL TAP ROCK SPRABERRY (TREND AREA) R 40 EXC HIBERNIA RESOURCES III, LLC 20956 HAILE -A- MCCAMEY TRIPP & SONS, LLC 03384 HAILEY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18010 HALCOMB LIN (WOLFCAMP) GANADOR OPERATING, LLC 18202 HALCOMB SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17549 HALCOMB A LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19428 HALE, M. S. BERNARD (GARDNER, LOWER) FURRY OIL & GAS, INC. 00226 HALFF OLD UPLAND, EAST (BEND) FULLER PRODUCTION, INC. 11866 HALFF -C- SPRABERRY (TREND AREA CL. FK.) APACHE CORPORATION 14810 HALFF -32- SPRABERRY (TREND AREA) APACHE CORPORATION 06945 HALFF -32- SPRABERRY (TREND AREA CL. FK.) APACHE CORPORATION 14362 HALFF -42- SPRABERRY (TREND AREA) APACHE CORPORATION 06967 HALFF 'A' HALFF HANK OIL & GAS, INC. 15344 HALFF '32' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17911 HALFF "18" KING MOUNTAIN, SE. (BEND) PITTS ENERGY CO. 12366 HALFF "47" SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 10523 HALFF "62" HAFLAW (QUEEN) VANCO OIL & GAS CORP. 07991


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HALFF ESTATE -D- OLD UPLAND (BEND) DE3 OPERATING LLC 07655 HALFF ESTATE "D" SPRABERRY (TREND AREA) DE3 OPERATING LLC 16222 HALFF ESTATE "20" AMACKER-TIPPETT, SW (WOLFCAMP) EOG RESOURCES, INC. 15250 HALFF ESTATE "26" SPRABERRY (TREND AREA) DE3 OPERATING LLC 16281 HALFF ESTATE "42" SPRABERRY (TREND AREA) DE3 OPERATING LLC 09297 HALFF ESTATE 26 OLD UPLAND (BEND) DE3 OPERATING LLC 07999 HALFF FIELD UNIT HALFF HANK OIL & GAS, INC. 04709 HALFF 1D SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20099 HALFF 1E SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20139 HALFF 1F SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20097 HALFF 1P SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20072 HALFF 1Q SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20075 HALFF 1R SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20086 HALFF 2 SPRABERRY (TREND AREA) THOMPSON, J. CLEO 17465 HALFF 2 SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 19130 HALFF 2A SPRABERRY (TREND AREA) DE3 OPERATING LLC 18347 HALFF 2B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18580 HALFF 2C SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 18839 HALFF 2C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19328 HALFF 3 SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 19119 HALFF 64 NOELKE (CLEAR FORK) RELIANCE ENERGY, INC. 19279 HALFF 65 NOELKE (CLEAR FORK) RELIANCE ENERGY, INC. 19159 HALFF 66 NOELKE (CLEAR FORK) RELIANCE ENERGY, INC. 18943 HALFF 84 AMACKER-TIPPETT, SW (WOLFCAMP) HUNT OIL COMPANY 14505 HALFF-AMACKER AMACKER-TIPPETT (WOLFCAMP) HUNT OIL COMPANY 13590 HALFF-AMACKER WILLRODE (STRAWN 9550) HUNT OIL COMPANY 04996 HALFF-AMACKER WILLRODE (WOLFCAMP) HUNT OIL COMPANY 11757 HALFF-AMACKER-BOTT AMACKER-TIPPETT (WOLFCAMP) HUNT OIL COMPANY 14641 HALFF-HALL 1AA SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20424 HALFF-HALL 1BB SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20534 HALFF-HALL 1CC SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20460 HALFF-HALL 1S SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20483 HALFF-HALL 1T SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20462 HALFF-HALL 1U SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20461 HALFF-HALL 1V SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20481 HALFFEAST 36 NE SPRABERRY (TREND AREA) TRP OPERATING LLC 18397 HALFFEAST12SW SPRABERRY (TREND AREA) TRP OPERATING LLC 16898 HALFFEAST36SW BLUE DANUBE (STRAWN) TRP OPERATING LLC 17061 HALFFYATES12 SPRABERRY (TREND AREA) TRP OPERATING LLC 15724 HALFF12 SPRABERRY (TREND AREA) TRP OPERATING LLC 15732 HALFF36 SPRABERRY (TREND AREA) TRP OPERATING LLC 15778 HALFMAN HALFMAN (STRAWN) LAVANCO ENERGY, LTD. 05720 HALFMAN NORTON, W. (PALO PINTO) SEQUOIA FOSSIL FUELS, INC. 14697 HALFMAN, E. A. HALFMAN (STRAWN) LAVANCO ENERGY, LTD. 10043 HALFMAN, E. A. "B" HALFMAN (STRAWN) LAVANCO ENERGY, LTD. 11150 HALFMAN, E.A. "A" HALFMAN (STRAWN) LAVANCO ENERGY, LTD. 10411 HALFMANN BUENA VENTURA (CISCO) STAR PRODUCTION, INC. 16671 HALFMANN SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 09552 HALFMANN 1214 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18597 HALFMANN 1214 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20560 HALFMANN 1214 E LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19235


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HALFMANN 1214 E SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20561 HALFMANN 1214 SE LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19251 HALFMANN 1214 SE SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20562 HALL COWDEN 42 SPRABERRY (TREND AREA) APACHE CORPORATION 17589 HALL RANCH BRADY MOUNTAIN (CANYON) O'DELL, MITCHELL 11436 HALL 11 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18673 HALL-POWELL PEGASUS (CONSOLIDATED) COG OPERATING LLC 17636 HALL-POWELL PEGASUS (ELLENBURGER) COG OPERATING LLC 19958 HALL, T. C. DEANIE B. (JENNINGS SD.) ENR OPERATING, LLC 15262 HALLE ANN AMACKER-TIPPETT, S (DEVONIAN) SUMMIT PETROLEUM LLC 11080 HAM LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18267 HAM SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02350 HAM SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20563 HAM -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02448 HAM -B- SPRABERRY (TREND AREA) DE3 OPERATING LLC 14010 HAM "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11755 HAM "B" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 07626 HAM A1 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19870 HAM B LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18319 HAM B SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20564 HAM BATTERY NO. 2 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 04822 HAM B1 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 21013 HAM C1 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 21031 HAM RANCH SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 17092 HAM UNIT RE M 2 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18886 HAM, ALICE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06569 HAM, C. E. SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 06157 HAM, C. E. "3A" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17247 HAM, C. E. "9" SPRABERRY (TREND AREA) DE3 OPERATING LLC 10577 HAM, C. E. "9" A SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 11376 HAMILTON LUCKY MAG (CONSOLIDATED) FOSSIL PETROLEUM LLC 16981 HAMILTON LUCKY-MAG (SAN ANGELO) FOSSIL PETROLEUM LLC 17498 HAMILTON 'B' LUCKY MAG (CONSOLIDATED) FOSSIL PETROLEUM LLC 18453 HAMILTON 'C' LUCKY MAG (CONSOLIDATED) FOSSIL PETROLEUM LLC 20317 HAMILTON "A" LUCKY MAG (CONSOLIDATED) FOSSIL PETROLEUM LLC 17035 HAMILTON RANCH LUCKY MAG (CONSOLIDATED) FOSSIL PETROLEUM LLC 19519 HAMMAN 30 SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 19257 HAMMAN 30A SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 19454 HAMMAN 30B SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20911 HAMMAN 30C SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20912 HAMMAN 30D SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20937 HAMMAN 30E SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20949 HAMPTON/HARDIN UNIT MILLERSVIEW, W. (CAMAR SD.) CAZAR ENERGY INC 15277 HANCOCK, KAREN DORMAN, WEST (GOEN) CEDAR OIL COMPANY 14335 HANEY ARDEN, S. (CANYON SD.) WESTERN CHIEF OPERATING, L.L.C. 16927 HANEY 3 ARDEN, S. (CANYON SD.) WESTERN CHIEF OPERATING, L.L.C. 17467 HANEY 4 ARDEN, S. (CANYON SD.) WESTERN CHIEF OPERATING, L.L.C. 17546 HANEY, A. J. ARDEN, S. (CANYON SD.) RAYCO OPERATING, INC. 06844 HANKAMER, EARL SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 06389 HANKS "B" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09577 HANKS FAMILY 7-7A-D SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20518


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HANKS FAMILY 7-7A-E SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20495 HANKS FAMILY 7-7A-EZ SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20517 HANKS FAMILY 7-7B-A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20505 HANKS FAMILY 7-7B-C SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20504 HANNAH DEIKE (GOEN) GOLDEN OIL AND RANCH, LLC 20383 HANNAH PAGE, WEST (WOLFCAMP) MCPHAUL, INC. 17947 HANNAH 12 SWD SPRABERRY (TREND AREA) COG OPERATING LLC 18257 HANS 'GRUBER' SPRABERRY (TREND AREA) TRP OPERATING LLC 20908 HANS GRUBER A SPRABERRY (TREND AREA) TRP OPERATING LLC 20890 HANS GRUBER B SPRABERRY (TREND AREA) TRP OPERATING LLC 20891 HANTSCHE, T. F. DEIKE (GOEN) HARDROCK RESOURCES INC. 07437 HANTSCHE, T. F. -273- DEIKE (GOEN) HARDROCK RESOURCES INC. 20187 HANTSCHE, T. F. -273- DEIKE (GOEN) KAISER-FRANCIS OIL COMPANY 06747 HAPPLE-THREE HIGHLINE ROOST (STRAWN) TANKERSLEY SWD LLC 19895 HARGRAVE ANDREW A (WOLFCAMP) COMSTOCK ENERGY, LLC 15728 HARGROVES NEEDLE CREEK (CANYON) FELDERHOFF PRODUCTION COMPANY 13696 HARLEY SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 15701 HARPER VELREX (HENDERSON UPPER) VERDAD OIL & GAS CORPORATION 07699 HARPER A LIN (WOLFCAMP) DISCOVERY NATURAL RESOURCES LLC 18201 HARPER-E- OIL UNIT SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18516 HARRELL HOLT RANCH (CONSOLIDATED) FOUNDATION ENERGY MANAGEMENT LLC 18014 HARRELL, T. B. SPRABERRY (TREND AREA) RASMUSSEN, TOM 14119 HARRIS CHASCO (CANYON) GOLDEN SPECIALTIES OIL & GAS 11344 HARRIS ESCONDIDO (FUSSELMAN) QEP ENERGY COMPANY 18111 HARRIS ZAN-ZAN (MID. CANYON) TXP, INCORPORATED 17960 HARRIS -C- TOE NAIL (STRAWN) WILLIAMS OIL COMPANY 02040 HARRIS "12" BLOODWORTH, SOUTH (5600, SOUTH) KATSCO ENERGY, INC. 12911 HARRIS "61" WAYNE-HARRIS (WOLFCAMP) PIONEER NATURAL RES. USA, INC. 15860 HARRIS RANCH BB 2-10 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20565 HARRIS RANCH BB 2-8 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20567 HARRIS RANCH BB2-10 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18822 HARRIS RANCH BB2-8 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18643 HARRIS RANCH 3-15 (AW) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20566 HARRIS, C. T. "12" ESCONDIDO (FUSSELMAN) QEP ENERGY COMPANY 12877 HARRIS, L. A. "10" RANCH (STRAWN) QEP ENERGY COMPANY 10914 HARRY JONAS WINTERS, NORTH HARDROCK RESOURCES INC. 17733 HARTER, FRANCES NOELKE CANTRELL CORP. 01056 HARTGROVE SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 18838 HARTGROVE SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20324 HARTGROVE SPRABERRY (TREND AREA) DE3 OPERATING LLC 07212 HARTGROVE SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10402 HARTGROVE SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 18984 HARTGROVE SPRABERRY (TREND AREA) R 40 EXC HIBERNIA RESOURCES III, LLC 19543 HARTGROVE - ROSE BUSSEY (1000) P,B&B OPERATING INC. 13195 HARTGROVE -E- SPRABERRY (TREND AREA) APACHE CORPORATION 06698 HARTGROVE "A" SPRABERRY (TREND AREA) APACHE CORPORATION 06559 HARTGROVE "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10492 HARTGROVE "B" SPRABERRY (TREND AREA) APACHE CORPORATION 06610 HARTGROVE "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11172 HARTGROVE "C" SPRABERRY (TREND AREA) APACHE CORPORATION 06628 HARTGROVE "F" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12179


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HARTGROVE "132-D" TEXAS CONCHO (3500) RUNNELS S.W.D.,INC. 12214 HARTGROVE "5" SPRABERRY (TREND AREA) APACHE CORPORATION 06447 HARTGROVE UNIT 22 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 18878 HARTGROVE 0401 SPRABERRY (TREND AREA) APACHE CORPORATION 20042 HARTGROVE 0401 A SPRABERRY (TREND AREA) APACHE CORPORATION 20056 HARTGROVE 4 SPRABERRY (TREND AREA) APACHE CORPORATION 20065 HARTGROVE-ROSE BUSSEY (1000) P,B&B OPERATING INC. 15352 HARTGROVE, H. L. SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 06250 HARTGROVE, H. L. -A- SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 06251 HARTGROVE, H. L. "B" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 14943 HASEL A UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18815 HASEL A UNIT SPRABERRY (TREND AREA) TRP OPERATING LLC 18707 HASEL10 SPRABERRY (TREND AREA) TRP OPERATING LLC 16238 HASEL11 SPRABERRY (TREND AREA) TRP OPERATING LLC 16403 HASEL14 SPRABERRY (TREND AREA) TRP OPERATING LLC 16120 HASEL15 SPRABERRY (TREND AREA) COG OPERATING LLC 17962 HASEL16 SPRABERRY (TREND AREA) COG OPERATING LLC 15943 HASEL17 SPRABERRY (TREND AREA) COG OPERATING LLC 15936 HASEL19 SPRABERRY (TREND AREA) COG OPERATING LLC 15711 HASEL19 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18975 HASEL2 SPRABERRY (TREND AREA) COG OPERATING LLC 16117 HASEL24 SPRABERRY (TREND AREA) COG OPERATING LLC 15914 HASEL25 SPRABERRY (TREND AREA) COG OPERATING LLC 15731 HASEL26 SPRABERRY (TREND AREA) COG OPERATING LLC 18107 HASEL28 SPRABERRY (TREND AREA) COG OPERATING LLC 15788 HASEL28 P1 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19681 HASEL28 P1 UNIT 1 SPRABERRY (TREND AREA) COG OPERATING LLC 19676 HASEL28 P2 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19679 HASEL28 P2 UNIT 1 SPRABERRY (TREND AREA) COG OPERATING LLC 19564 HASEL28 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19584 HASEL29 SPRABERRY (TREND AREA) TRP OPERATING LLC 16346 HASEL30 SPRABERRY (TREND AREA) TRP OPERATING LLC 16221 HASEL5 SPRABERRY (TREND AREA) COG OPERATING LLC 16122 HASEL50 SPRABERRY (TREND AREA) TRP OPERATING LLC 16062 HASEL51 SPRABERRY (TREND AREA) COG OPERATING LLC 16044 HASEL52 SPRABERRY (TREND AREA) COG OPERATING LLC 16121 HASEL53 SPRABERRY (TREND AREA) TRP OPERATING LLC 16078 HASEL53 UNIT SPRABERRY (TREND AREA) TRP OPERATING LLC 19616 HASEL53 UNIT A SPRABERRY (TREND AREA) TRP OPERATING LLC 19609 HASEL53 UNIT B SPRABERRY (TREND AREA) TRP OPERATING LLC 19677 HASEL55 SPRABERRY (TREND AREA) COG OPERATING LLC 16126 HASEL56 SPRABERRY (TREND AREA) TRP OPERATING LLC 16280 HASEL57 SPRABERRY (TREND AREA) COG OPERATING LLC 16212 HASEL59 SPRABERRY (TREND AREA) COG OPERATING LLC 16116 HASEL6 SPRABERRY (TREND AREA) TRP OPERATING LLC 16073 HASEL7 SPRABERRY (TREND AREA) TRP OPERATING LLC 16261 HATTIE FREEMAN HIDALGO OIL & EXPLORATION CORP. 09446 HAVOC VERIBEST, S. (ELLENBURGER) LANEXCO, INC. 19862 HAWKER WEST UNIT SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20126 HAWKER 1501A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20391 HAWKER 1501BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20392


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HAWKER 1502A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20393 HAWKER 1502B SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20394 HAWKER 1503A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20388 HAWKER 1503B SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20389 HAWKER 1503BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20395 HAWKER 1504A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20387 HAWKER 1504BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20390 HAWKER 1505A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20385 HAWKER 1505B SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20386 HAYDEN AMACKER-TIPPETT, SW (WOLFCAMP) COG OPERATING LLC 16622 HAYS, C. B. BALLINGER (PALO PINTO, N.) IMPERATOR OPERATING, LLC 07947 HEADLINERS 6 LIN (WOLFCAMP) HIBERNIA RESOURCES III, LLC 19058 HEINZE, RICHARD B. URBAN (MILES) ROCKWOOD RESOURCES INC 08498 HELBING OZONA, S. (SPRABERRY) STANOLIND PRODUCTION LLC 05249 HELBING "18" OZONA, NE. (CANYON SAND) EPIC PERMIAN OPERATING, LLC 15670 HELBING 18 OZONA, NE. (CANYON SAND) EPIC PERMIAN OPERATING, LLC 15552 HELUMA (CISCO) UNIT #2 HELUMA (CISCO) SABINAL ENERGY OPERATING, LLC 13501 HELWIG SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06199 HEMPHILL DOVE CREEK (CANYON -D-) DISCOVERY OPERATING, INC. 14949 HENDERSON HENDERSON (3325) CONCHO OILFIELD SERV & OPER CO. 12149 HENDERSON OZONA (CANYON SAND) STANOLIND PRODUCTION LLC 13249 HENDERSON "B" OZONA (CANYON SAND, OIL) PATNO OIL & GAS COMPANY 07965 HENDERSON TRUST "N" HOWARDS CREEK (CANYON) APACHE CORPORATION 16814 HENDERSON UNIT V. I. P. (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 13047 HENDERSON, J.A. WINTERS, SW. (CANYON, UPPER #2) LONE STAR PRODUCTION 13823 HENDERSON, JOHN W. 111 "K" OZONA (CANYON SAND) DJH OIL & GAS LLC 15147 HENDERSON, R. L. VELREX (CANYON, UP.) TXP, INCORPORATED 04907 HENDERSON,R.L. DOVE CREEK (CANYON -D-) DISCOVERY OPERATING, INC. 08714 HENDRY JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 07485 HENDRY DAVENPORT UNIT FORT CHADBOURNE (GARDNER) PROLINE ENERGY RESOURCES INC 15035 HENDRY POINT UNIT FORT CHADBOURNE, W. (ELLEN.) PROLINE ENERGY RESOURCES INC 13894 HENDRY, M C JAMESON (STRAWN) JATAM INC. 07852 HENDRY, M. C. JAMESON (STRAWN) KATSCO ENERGY, INC. 07303 HENNIGER, L. W. BALLINGER (PALO PINTO) EOR OPERATING COMPANY 02781 HENRY ROCK PEN (CANYON) J2 PETROLEUM LLC 10208 HENRY, B. B. DEIKE (GOEN) KAISER-FRANCIS OIL COMPANY 06715 HENSLEY -453- FORT CHADBOURNE (GRAY) PETROSOURCE ENERGY CORPORATION 13465 HENSLEY -453- SANROB, WEST (CAPPS) PETROSOURCE ENERGY CORPORATION 12817 HENSLEY 453 SANFORD (FRY) PETROSOURCE ENERGY CORPORATION 14314 HENSLEY/WEST FORT CHADBOURNE (GRAY) PETROSOURCE ENERGY CORPORATION 08475 HERCULES HERCULES (CANYON) COPPER RIDGE RESOURCES LLC 18492 HERMAN ROCK PEN (CANYON) TXP, INCORPORATED 11340 HERMAN SUGG-IRION (WICHITA-ALBANY) TXP, INCORPORATED 18781 HERRING/ALLEN-121 NORDIC (DOG BEND) VALLEY PETROLEUM COMPANY 10181 HERRINGTON, A. J. MCCAMEY PHARAOH OIL & GAS, INC. 00884 HERRINGTON, A. J. "A" MCCAMEY PHARAOH OIL & GAS, INC. 00953 HICKMAN PRICE (GRAYBURG) AQUA TERRA PERMIAN, LLC 17640 HICKMAN PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 09803 HICKMAN PRICE (GRAYBURG) OVERTON PARK OIL & GAS LP 08456 HICKMAN PRICE (GRAYBURG) RECOVERY OPERATING LP 04557 HICKMAN PRICE (GRAYBURG) TURNER PRODUCTION 10152


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HICKMAN SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18785 HICKMAN "A" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 02695 HICKMAN "B" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 10996 HICKMAN "C" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 11276 HICKMAN "D" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 11554 HICKMAN "E" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 11911 HICKMAN "P" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 10184 HICKMAN A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19337 HICKMAN ALLOCATION A LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19644 HICKMAN ALLOCATION A SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20572 HICKMAN ALLOCATION B LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19841 HICKMAN ALLOCATION B SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20573 HICKMAN ALLOCATION C LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19863 HICKMAN ALLOCATION C SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20574 HICKMAN AL01 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20176 HICKMAN AL02 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20171 HICKMAN AL03 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20175 HICKMAN AL04 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20149 HICKMAN AL05 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20151 HICKMAN D SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19634 HICKMAN E SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19617 HICKMAN N SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19814 HICKMAN O SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19820 HICKMAN P SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19806 HICKMAN RE 1 223 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19210 HICKMAN RE 1 223 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20568 HICKMAN 206-223 ALLOC A2 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19877 HICKMAN 206-223 ALLOC A2 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20571 HICKMAN 206-223 ALLOC A3 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19886 HICKMAN 206-223 ALLOC A3 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20569 HICKMAN 206-223 ALLOC A4 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19856 HICKMAN 206-223 ALLOC A4 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20570 HICKMAN 206-223 ALLOC B2 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19897 HICKMAN 206-223 ALLOC B2 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20575 HICKMAN 206-223 ALLOC B3 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19851 HICKMAN 206-223 ALLOC B3 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20576 HICKMAN 206-223 ALLOC C2 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19803 HICKMAN 206-223 ALLOC C2 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20577 HICKMAN 206-223 ALLOC C3 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19780 HICKMAN 206-223 ALLOC C3 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20578 HICKMAN 206-223 ALLOC C4 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19840 HICKMAN 206-223 ALLOC C4 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20579 HICKMAN 206-223 ALLOC D2 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19831 HICKMAN 206-223 ALLOC D2 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20582 HICKMAN 206-223 ALLOC D3 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19846 HICKMAN 206-223 ALLOC D3 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20581 HICKMAN 206-223 ALLOC D4 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20048 HICKMAN 206-223 ALLOC D4 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20580 HICKMAN, N. W. BARNHART WTG EXPLORATION 00091 HICKMAN, N. W. FARMER (SAN ANDRES) WTG EXPLORATION 16148 HICKMAN, N. W. PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 04019


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HICKMAN, N. W. PRICE (GRAYBURG) WTG EXPLORATION 10739 HICKMAN, N. W. -A- BARNHART TOMEL PRODUCTION, LLC 00092 HICKMAN, N. W. -A- PRICE (GRAYBURG) L & M OPERATING, INC. 02728 HICKMAN, N. W. -B- PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 02591 HICKMAN, N. W. "234" PRICE (GRAYBURG) WTG EXPLORATION 11341 HICKMAN, N. W., "B" PRICE (GRAYBURG) L & M OPERATING, INC. 01201 HICKMAN, N.W. -A- PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 02502 HICKS ETC KNIGHT "A" JAMESON (STRAWN) JATAM INC. 10254 HICKS, L. H. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01591 HICKS, L. H. "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02774 HIGGINS HIGGINS RANCH (CANYON) SCOUT ENERGY MANAGEMENT LLC 17286 HIGGINS JAMESON (STRAWN) J V A OPERATING COMPANY, INC. 10391 HIGGINS RANCH CBR HIGGINS RANCH (CANYON) CLEAR BROOKE RANCHES, LLC 19627 HIGHLAND SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 16673 HIGHLAND A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18048 HIGHLAND G SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18051 HIGHLANDS SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 13660 HILL BAKER RANCH (CANYON) FORTUNE ENERGY, INC. 18761 HILL & HARRIS -4- BLOODWORTH, SOUTH (5600, SOUTH) KATSCO ENERGY, INC. 06958 HILL-FAWCETT, RANDEE TRUST 'E' SAWYER (LEONARD) UPP OPERATING, LLC 18471 HILL, A. P. "14" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 09351 HILL, CLARA SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14436 HILLERT "A" MENARD, W. (HARKEY) CAZAR ENERGY INC 17054 HILLERT, A. W. "A" MENARD, W. (HARKEY) CAZAR ENERGY INC 16773 HINDE LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18239 HINDE SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20584 HINDE (SA) LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18768 HINDE (SA) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20583 HINDE (SA) A LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18776 HINDE (SA) A SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20585 HINDE (SA) B LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18770 HINDE (SA) B SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20586 HIRSCH 'E' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18798 HIRSCH "F" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04254 HIRSCH E '29-32' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19918 HIRSCH E 29-32 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19899 HIRSCH, REBECCA ET AL SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 15338 HIRSH "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12425 HIRSH "B" SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 12472 HIRSH "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12578 HIRSH "D" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12748 HIRT DICK RICHARDSON (GARDNER LIME) MULLOY OPERATING, INC. 15972 HITT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13116 HOBLIT-JACOBS RANCH CO. -A- H-J (STRAWN) GRIZZLY OP OF DELAWARE, LLC 00549 HOELSCHER BALLINGER, NW. (CAPPS) MULLOY OPERATING, INC. 15865 HOELSCHER DICK RICHARDSON (GARDNER LIME) MULLOY OPERATING, INC. 15654 HOELSCHER-SCHWERTNER BALLINGER, WEST (MORRIS SD) OTEX LLC 17307 HOELSCHER/SCHWERTNER BALLINGER, WEST (CAPPS) EDINBURGH ENERGY PARTNERS, LLC 14394 HOELSCHER/SCHWERTNER BALLINGER, WEST (JENNINGS) PIONEER ENERGY CORPORATION 13593 HOELSCHER/SCHWERTNER BALLINGER, WEST (PALO PINTO) EDINBURGH ENERGY PARTNERS, LLC 19413 HOELSCHER/SCHWERTNER 2A BALLINGER, WEST (PALO PINTO) OTEX LLC 18371


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HOELSCHER, DANIEL SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08594 HOFFMAN, RAYMOND LOCO RICO (DOG BEND) 3-D OIL & GAS 07190 HOGAN-SMITH WINTERS, NORTH LONE STAR PRODUCTION 13413 HOHENSEE "A" S.S.R. (CANYON, UPPER) ROCKWOOD RESOURCES INC 10294 HOLIK BIG D (HARKEY 4000) J & J SERVICES COMPANY 13288 HOLIK, STANLEY HALFMAN (STRAWN) LAVANCO ENERGY, LTD. 10029 HOLLE BUSHER (MORRIS) SHOCO PRODUCTION LLC 19524 HOLLE WINTERS, SW. (GARDNER SD., LO.) SHOCO PRODUCTION LLC 19217 HOLLE NORTH BUSHER (MORRIS) SHOCO PRODUCTION LLC 19724 HOLLENBECK SAWYER (LEONARD) UPP OPERATING, LLC 18106 HOLLEY SWD SPRABERRY (TREND AREA) PROBITY SWD, LLC 18168 HOLLEY 1208 SPRABERRY (TREND AREA) APACHE CORPORATION 17397 HOLLEY 1208 HZ UNIT SPRABERRY (TREND AREA) APACHE CORPORATION 18882 HOLT KIM (HARKEY) CAPITOL WELL SERVICING CO., INC. 15925 HOLT "112" SPRABERRY (TREND AREA) PRIDE ENERGY COMPANY 17371 HOLT "132" SPRABERRY (TREND AREA) TEXAS WATER DISPOSAL SVCS,L.L.C. 17474 HOLT A 136-25 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18919 HOLT A 136-25 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19654 HOLT B SWD SPRABERRY (TREND AREA) WASSER OPERATING, LLC 17892 HOLT C 132-130 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19306 HOLT C 132-130 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19307 HOLT C 132-133 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19308 HOLT C 132-133 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19309 HOLT E 130-132 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20023 HOLT E 130-132 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20001 HOLT E 130-132 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19968 HOLT E 130-132 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19945 HOLT R 136-25 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18920 HOLT RE 1222 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19252 HOLT RE 1222 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20381 HOLT SWD SPRABERRY (TREND AREA) WASSER OPERATING, LLC 18551 HOLT 1-14 & 2-14 HOLT RANCH (ELLENBURGER) SMITH PIPE OF ABILENE 13826 HOLT 112-110 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20299 HOLT 112-110 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20296 HOLT 112-110 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20240 HOLT 1222-1221 ALLOC 02 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20358 HOLT 1222-1221 ALLOC 02 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20704 HOLT 1223-1221 ALLOC 01 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20399 HOLT 1223-1221ALLOC 01 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20705 HOLT 132 SPRABERRY (TREND AREA) LEXRO, LLC 17475 HOLT-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17013 HOLT-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18515 HOLT-C- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17006 HOLT-D- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17850 HOLT-E- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17096 HOLT-R- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 14050 HOLUBEC WEST NEEDLE CREEK (STRAWN) COOPER OIL & GAS, LLC 14125 HOLZGRAF (SA) C SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 19106 HOLZGRAF (SA) D SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 19843 HOLZGRAF (SA) E SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 19825 HOLZGRAF (SA) F SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 19826


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HOLZGRAF (SA) G SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 19835 HOLZGRAF CT (SA) H SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20928 HOLZGRAF CT (SA) N SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20450 HOLZGRAF CT (SA) R SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20476 HOLZGRAF CT (SA) S SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20475 HOLZGRAF CT (SA) T SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20448 HOLZGRAF CT (SA) U SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20449 HOLZGRAF CT (SA) V SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20482 HOLZGRAF CT (SA) W SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20955 HOLZGRAF CT (SA) X SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 20947 HOLZGRAF 34 SPRABERRY (TREND AREA) DISCOVERY OPERATING, INC. 15429 HOLZGRAF, ORA "B" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17145 HOOTEN HENSON (JENNINGS) CAMEXCO, INC. 12362 HOOVER OZONA (CLEAR FORK) BONFIRE OPERATING LLC 07380 HOOVER PIPE DREAM (KING SAND) MARSHALL & WINSTON, INC. 13364 HOOVER -D- SIMPSON HOOVER PETROLEUM COMPANY, LLC 01289 HOOVER -E- SIMPSON HOOVER PETROLEUM COMPANY, LLC 01290 HOOVER -F- SIMPSON HOOVER PETROLEUM COMPANY, LLC 01291 HOOVER -K- HOOVER HOOVER PETROLEUM COMPANY, LLC 00576 HOOVER -3- SHANNON (SAN ANDRES) O & O OPERATORS, LLC. 08118 HOOVER -4- SHANNON (SAN ANDRES) O & O OPERATORS, LLC. 08119 HOOVER "A" SHANNON (SAN ANDRES) PHARAOH OIL & GAS, INC. 07447 HOOVER "13" OZONA, N. (CLEARFORK) EPIC PERMIAN OPERATING, LLC 07307 HOOVER G SIMPSON HOOVER PETROLEUM COMPANY, LLC 10440 HOOVER 13 AMERICAN (SPRABERRY A) PRIMAL ENERGY CORPORATION 14705 HOOVER 3 AMERICAN (SPRABERRY D) PRIMAL ENERGY CORPORATION 08072 HOOVER-SUN SIMPSON HOOVER PETROLEUM COMPANY, LLC 01287 HOOVER, -B- SIMPSON HOOVER PETROLEUM COMPANY, LLC 01288 HOOVER, A. C. CLARA COUCH CLARK OIL CO. 00334 HOOVER, A. C. CLARA COUCH SAHARA OPERATING COMPANY 00323 HOOVER, A. C. SHANNON (SAN ANDRES) CLARK OIL CO. 03564 HOOVER, A. C. (DENTLER) CLARA COUCH CLARK OIL CO. 00324 HOOVER, A. C. -A- SHANNON (SAN ANDRES) CLARK OIL CO. 01270 HOOVER, A. C. -A- SHANNON (SAN ANDRES) TROJAN OIL COMPANY, LLC 01276 HOOVER, A. C. -B- SHANNON (SAN ANDRES) RSK OIL COMPANY 01271 HOOVER, A. C. -K- SHANNON (SAN ANDRES) HOOVER PETROLEUM COMPANY, LLC 02758 HOOVER, A. C. -M- SHANNON (SAN ANDRES) HOOVER PETROLEUM COMPANY, LLC 02724 HOOVER, LAURA ESTATE "41B" OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 13817 HOOVER, W.P.-SEC. 14, BLK. NN AMERICAN (SPRABERRY B) DAMERON PETROLEUM CORP. 10263 HOOVER, W.P.-SEC. 14, BLK. 1 AMERICAN (SPRABERRY A) DAMERON PETROLEUM CORP. 10262 HOPE SPRABERRY (TREND AREA) COG OPERATING LLC 15515 HOPKINS ARENA (KING SAND) DAMRON ENERGY, LLC 16701 HOPPE WFM (GOEN LIME) ENRICH OIL CORPORATION 17769 HOPPE, W.-B NICK (3700) BO-VO OPERATING CO. 07515 HORD FENNELL (GOEN) WTI OPERATING, LLC 16587 HORD 'A' FENNELL (KING SAND) CEDAR OIL COMPANY 18369 HORD 'B' FENNELL (CISCO REEF) CEDAR OIL COMPANY 18367 HORWOOD, F. L. H. PROBANDT (CANYON) SIANA OIL & GAS 12571 HOUSER SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17840 HOUSTON-BROOKS, W. F. PAINT ROCK, W. (GOEN D) BJM OIL & GAS CORPORATION 12300 HOUSTON-DAVIDSON PAINT ROCK, W. (GOEN D) BJM OIL & GAS CORPORATION 10511


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HOUSTON, ELLA "1" PAINT ROCK, W. (GOEN D) CONCHO OILFIELD SERV & OPER CO. 10452 HOWARD INDIANA (GRAY) WINDHAM RESOURCES 12102 HOWARD "A" INDIANA (GRAY) WINDHAM RESOURCES 12301 HOWARD "23" MCCAMEY, NE. (ATOKA 8130) ENDEAVOR ENERGY RESOURCES L.P. 12672 HOWARD "30" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14255 HOWARD 32 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14257 HOWARD 32C SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11132 HOWARD, J. INDIANA (FRY) WINDHAM RESOURCES 11826 HOWARD, MABEL FRADEAN, S. E. (DEVONIAN) BARNETT ENERGY, INC. 12912 HOWARD, WILLIAM 42 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14283 HOWARD, WM. SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 14056 HOWARD,"42" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14059 HOWARD,HARRY FRADEAN, S. E. (DEVONIAN) BARNETT ENERGY, INC. 12084 HOYT, JOAN CREWS BROOKS (CANYON K) COMSTOCK ENERGY, LLC 12971 HOYT, JOAN CREWS BROOKS (CANYON 5750) COMSTOCK ENERGY, LLC 14905 HOYT, JOAN CREWS ROCK PEN (CLEARFORK) COMSTOCK ENERGY, LLC 20733 HOYT, JOAN CREWS ZAN-ZAN (MID. CANYON) COMSTOCK ENERGY, LLC 12553 HUBACH, H. O. HUBACH (GOEN) B & G ENERGY CORPORATION 12914 HUBER-UNIVERSITY "47-21" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 09594 HUCKABY FORT CHADBOURNE (GRAY) PETROSOURCE ENERGY CORPORATION 08476 HUCKABY "26" SHEEP MOUNTAIN (CONSOLIDATED) DRIFTWOOD ENERGY OPERATING, LLC 20980 HUCKABY "26" SHEEP MOUNTAIN (CONSOLIDATED) PIONEER NATURAL RES. USA, INC. 17679 HUCKABY "30" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17663 HUCKABY "34" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17930 HUDGENS, DON BENEDUM (FUSSELMAN) CONOCOPHILLIPS COMPANY 11110 HUDSON SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18344 HUGH '27-34' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19682 HUGH 27 DAI (WOLFCAMP) PARSLEY ENERGY OPERATIONS, LLC 18147 HUGH 27 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20555 HUGH 27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 21018 HUGH 27-34 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19460 HUGHES MCCAMEY XOG OPERATING LLC 04090 HUGHES P.W.C. (JENNINGS LIME) BOB HUGHES OIL COMPANY, LLC 19566 HUGHES SPRABERRY (TREND AREA) ARKLAND PRODUCING CO., INC. 13916 HUGHES SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04704 HUGHES SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12058 HUGHES SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 05711 HUGHES SPRABERRY (TREND AREA) VERDAD OIL & GAS CORPORATION 04766 HUGHES WILMETH, SE. (CANYON SD.) GOLDEN OIL AND RANCH, LLC 18502 HUGHES -A- MCCAMEY XOG OPERATING LLC 03997 HUGHES -B- MCCAMEY XOG OPERATING LLC 00855 HUGHES -B- (04133) MCCAMEY XOG OPERATING LLC 04133 HUGHES -D- MCCAMEY XOG OPERATING LLC 00856 HUGHES -E- SPRABERRY (TREND AREA) PITTS ENERGY CO. 04711 HUGHES "A" RED HOUSE (ELLENBURGER) SABLE PERMIAN RESOURCES, LLC 10916 HUGHES "A" RED HOUSE (FUSSELMAN) SABLE PERMIAN RESOURCES, LLC 11206 HUGHES "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12086 HUGHES "14" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 07693 HUGHES "168" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 16450 HUGHES "182" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16911 HUGHES "193" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 16910


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HUGHES "195" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16508 HUGHES "22AA" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12078 HUGHES "22B" SPRABERRY (TREND AREA) DE3 OPERATING LLC 17196 HUGHES "5" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 07337 HUGHES "7-2" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10471 HUGHES ALPINE WEST 18 SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 17111 HUGHES ALPINE WEST 19 SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 17078 HUGHES ALPINE WEST 22 SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16819 HUGHES ALPINE WEST 28 SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 17110 HUGHES CREWS SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 03800 HUGHES CREWS -A- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 03801 HUGHES EAST 7-22 ALLOC 01 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19878 HUGHES EAST 7-22 ALLOC 01 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20671 HUGHES SF SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 09762 HUGHES U SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20179 HUGHES V SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20178 HUGHES W SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20184 HUGHES WEST LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19467 HUGHES WEST SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20672 HUGHES X SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20185 HUGHES Y SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20180 HUGHES Z SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20181 HUGHES 13 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 03141 HUGHES 14A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11955 HUGHES 14B SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 07866 HUGHES 21E SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10665 HUGHES 22 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10516 HUGHES 28B SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10728 HUGHES-BRONSON "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10553 HUGHES-TRIGG SPRABERRY (TREND AREA) OVINTIV USA INC. 08489 HUGHES, -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 03325 HUGHES, CHARLES '21' SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16502 HUGHES, CHARLES H. SPRABERRY (TREND AREA) ENVIRONMENTAL DSPL SYSTEMS, LLC 11495 HUGHES, CHARLES 1210 "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10617 HUGHES, ED. S. -B- MCCAMEY XOG OPERATING LLC 00928 HUGHES, ED. S. -C- MCCAMEY FLUIDO ENERGY SERVICES, LLC 00839 HUGHES, JACKSN -8100- STILES (FUSSELMAN) PITTS ENERGY CO. 03341 HUGHES, JACKSON SPRABERRY (TREND AREA) PITTS ENERGY CO. 03745 HUGHES, JACKSON -24- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 03074 HUGHES, MARY SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05023 HUGHES, MARY 168 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 09229 HUGHES, MARY 169 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 09003 HUGHES, MARY 182 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 09159 HUGHES, MARY, -B- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05118 HUGHES, VESTER SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 05106 HUGHES, VESTER ESTATE A SPRABERRY (TREND AREA) ROBBY KOHUTEK, INC. 14379 HUGHES, ZULETTE RED HOUSE (FUSSELMAN) DE3 OPERATING LLC 10277 HUGHES, ZULETTE RED HOUSE (FUSSELMAN) PRIME OPERATING COMPANY 16225 HUGHES, ZULETTE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 03314 HUGHES, ZULETTE SPRABERRY (TREND AREA) DE3 OPERATING LLC 03356 HUGHES, ZULETTE "22D" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14260


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ HULET "138" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17665 HULET "164" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17628 HULET "166" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17609 HULLDALE /PENN REEF UNIT/ HULLDALE (PENNSYLVANIAN REEF) M5 STANDING ENERGY, LLC 04312 HUNT SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16551 HUNT -D- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14199 HUNT -F- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14202 HUNT -H- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14215 HUNT -I- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14207 HUNT -K- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14209 HUNT 13 SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16808 HUNT 33 PHYLISS SONORA (LEONARD) TUG HILL OPERATING, LLC 15848 HUNT, FANNIE M. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06234 HURDLE HURDLE PHARAOH OIL & GAS, INC. 00615 HURST A BILMIK (HARKEY) CONCHO OILFIELD SERV & OPER CO. 15921 HURST A COW KILLER (GOEN) CONCHO OILFIELD SERV & OPER CO. 15782 HURST C COW KILLER (GOEN) CONCHO OILFIELD SERV & OPER CO. 17205 HURST, C. H. SUMAC (KING SAND, LOWER) CONCHO OILFIELD SERV & OPER CO. 12979 HUSKY PRICE (GRAYBURG) ATLAS OPERATING LLC 10530 HUSKY SPRABERRY (TREND AREA) ATLAS OPERATING LLC 09246 HUTCHINSON DARK HORSE (GOEN C) CONCHO OILFIELD SERV & OPER CO. 14836 HWY 137 SWD SPRABERRY (TREND AREA) NGL WATER SOLUTIONS PERMIAN, LLC 18902 HWY 349 SWD SPRABERRY (TREND AREA) NGL WATER SOLUTIONS PERMIAN, LLC 18732 HYATT, JACIE C-M-R (GRAYBURG) BUSTOS, MARTIN OIL 05645 HYER "9" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17248 I. A. B. UNIT I. A. B. (MENIELLE PENN.) FDL OPERATING, LLC 03910 INCA-PARISH SPRABERRY (TREND AREA) V-F PETROLEUM INC. 11679 INDEPENDENCE 25 LITTLE MESA (WOLFCAMP) WHITE ROCK OIL & GAS, LLC 13867 INDIA 22 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18166 INGHAM "39" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11653 INGHAM, HOMER SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01750 IRMA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18632 IRMA A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18895 IRVIN SPIKE, NORTH (PALO PINTO) WINDOW OPERATING CO., THE 18737 ISABELLA AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 14956 J. P. LEASE FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08424 J.D. THORN RAY (CISCO) CLEAR FORK, INCORPORATED 19091 J.L. BRUNSON BRONTE (4800 SAND) BOAZ ENERGY II OPERATING, LLC 18452 J.L. BRUNSON 'B' BRONTE SODOR (ELLENBURGER) BOAZ ENERGY II OPERATING, LLC 17902 J.L. BRUNSON "B" BRONTE (CAMBRIAN) BOAZ ENERGY II OPERATING, LLC 17586 J.L. BRUNSON "B" NDUGU (CROSS-CUT) BOAZ ENERGY II OPERATING, LLC 18098 J.W. OWENS "D" OLSON STANOLIND PRODUCTION LLC 17321 J.W. OWENS Q CLARA COUCH STANOLIND PRODUCTION LLC 18309 J&M JIMMIE (CROSS CUT) G & F OIL, INC. 18379 JACEE SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16111 JACEE A UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18221 JACEE B UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18406 JACEE C UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18786 JACEE D UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18851 JACEE E UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18939 JACK "89" AMACKER-TIPPETT (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 10766


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ JACK 25B-24C-G SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 21020 JACK 25B-24C-H SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 21024 JACKSON SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20432 JACKSON SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 13223 JACKSON -A- SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 03889 JACKSON -B- SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 03934 JACKSON, MARY L. ELDORADO RECOVERY OPERATING LP 00433 JACOB-LUEDECKE RAMON (LEONARD) OXY USA INC. 12295 JACOBS LIVE "C" HELUMA (ELLENBURGER) ENDEAVOR ENERGY RESOURCES L.P. 06086 JACOBS LIVE "C" HELUMA, EAST (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 07345 JACOBS LIVESTOCK HELUMA (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 13681 JACOBS LIVESTOCK HELUMA, EAST (DEVONIAN) LEGACY RESERVES OPERATING LP 06331 JACOBS LIVESTOCK -A- HELUMA (PENN.) LEGACY RESERVES OPERATING LP 11628 JACOBS LIVESTOCK "B" HELUMA (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 10251 JACOBS LIVESTOCK "B" HELUMA, SE (DEVONIAN) LEGACY RESERVES OPERATING LP 10218 JACOBS LIVESTOCK "C" HELUMA (PENN.) LEGACY RESERVES OPERATING LP 11173 JACOBS LIVESTOCK "D" HELUMA, EAST (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 07478 JACOBS LIVESTOCK A/C 4 HELUMA, EAST (DEVONIAN) LEGACY RESERVES OPERATING LP 13723 JACOBS LIVESTOCK A/C-2 HELUMA, EAST (DEVONIAN) LEGACY RESERVES OPERATING LP 06658 JACOBS LIVESTOCK A/C-3 HELUMA, EAST (DEVONIAN) LEGACY RESERVES OPERATING LP 06833 JACOBS LIVESTOCK C HELUMA, SE (DEVONIAN) LEGACY RESERVES OPERATING LP 15720 JACOBS LIVESTOCK CO. (SUNILAND) HELUMA, EAST (DEVONIAN) SABINAL ENERGY OPERATING, LLC 12161 JACOBS LIVESTOCK CO. -A- HELUMA, EAST (DEVONIAN) SABINAL ENERGY OPERATING, LLC 06817 JACOBS LIVESTOCK CO. /SUNILAND/ HELUMA (PENN.) SABINAL ENERGY OPERATING, LLC 03861 JACOBS LIVESTOCK CO. "C" HELUMA, EAST (DEVONIAN) SABINAL ENERGY OPERATING, LLC 11847 JACOBS, O. B. BLOODWORTH, N. (CANYON 5650) ENRICH OIL CORPORATION 07713 JACOBY NEEDLE CREEK (STRAWN) FELDERHOFF PRODUCTION COMPANY 14122 JACOBY "B" BRADY CREEK (KING SAND) KING-GOEN OIL, LLC 14325 JACOBY "B" LONESOME DOVE II (GOEN) KING-GOEN OIL, LLC 13071 JACOBY A BRADY CREEK (KING SAND) KING-GOEN OIL, LLC 13485 JACOBY A LONESOME DOVE II (GOEN) KING-GOEN OIL, LLC 13186 JACQUELYN SPISER DARK HORSE (GOEN C) CONCHO OILFIELD SERV & OPER CO. 19001 JADE UNIT FREEDOM (WOLFCAMP) MLC OPERATING, LP 17534 JALONICK SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02673 JALONICK 40-45 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 19910 JALONICK, LOTTIE -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14198 JAMES B MCLARTY (GOEN) VANCO OIL & GAS CORP. 12931 JAMES N 45-50 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20422 JAMES O 45-50 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20423 JAMES 1 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18572 JAMES, C. L. "B" LINDEMANN (MORRIS SAND) VANCO OIL & GAS CORP. 10233 JAMESON RIO CONCHO CO ENERGY 11530 JAMESON "A" RIO CONCHO CO ENERGY 11831 JAMESON "A" THREE-M (JAMESON) CO ENERGY 13775 JAMESON "49" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17430 JAMESON "50" SPRABERRY (TREND AREA) DE3 OPERATING LLC 17426 JAMESON ETAL 1-A BLOODWORTH, N. (CANYON 5650) BUSTAMANTE OIL COMPANY 15127 JAMESON RANCH RIO CONCHO SANTA RITA HOLDINGS, LLC 14351 JAMESON REEF UNIT JAMESON FDL OPERATING, LLC 00621 JAMESON STRAWN SAND UNIT JAMESON (STRAWN) FDL OPERATING, LLC 04778 JAMESON STRAWN UNIT JAMESON (STRAWN) MORIAH OPERATING,LLC 04610


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ JAMESON, FRED JAMESON (STRAWN) FDL OPERATING, LLC 13161 JAMIE SPRABERRY (TREND AREA) SM ENERGY COMPANY 15459 JAMISON 40 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18194 JANEY SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16523 JANEY '14' SPRABERRY (TREND AREA) COG OPERATING LLC 17926 JANICE AMACKER-TIPPETT, SW (STRAWN) SUMMIT PETROLEUM LLC 09979 JANICE AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 09978 JANICE A AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 14673 JANIE "S" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16793 JANSA A DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 19346 JANSA B DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 20067 JASON "33" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15739 JATAM, INC. KNIGHT - 117 JAMESON (STRAWN) CARDONA, LLC 09418 JATAM, INC. KNIGHT-142 JAMESON (STRAWN) CARDONA, LLC 08692 JATAM, INC.-KNIGHT "E" JAMESON (STRAWN) JATAM INC. 10422 JAX SPRABERRY (TREND AREA) DE3 OPERATING LLC 10697 JD SUGG "23" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16614 JEFFREYS NORDIC (DOG BEND) R & R WELL SERVICE, INC. 09635 JEFFS SPRABERRY (TREND AREA) APACHE CORPORATION 16829 JEFFS 3A SPRABERRY (TREND AREA) APACHE CORPORATION 17783 JENA ROSE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17191 JENNIFER SPRABERRY (TREND AREA) COG OPERATING LLC 15587 JESCHKE URBAN (MILES) UPSTREAM PROPERTIES, LLC 08085 JESSE SPRABERRY (TREND AREA) COG OPERATING LLC 15568 JESSICA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16724 JESSICA13NE SPRABERRY (TREND AREA) TRP OPERATING LLC 16363 JESSICA13NW SPRABERRY (TREND AREA) TRP OPERATING LLC 16404 JESSICA13SE SPRABERRY (TREND AREA) TRP OPERATING LLC 16367 JESSICA13SW SPRABERRY (TREND AREA) TRP OPERATING LLC 16093 JIGGER-Y/PENN/CONS JIGGER-Y (PENNSYLVANIAN) RANGER 40 PETROLEUM, LLC 15559 JIMMIE, HERRING JIMMIE (CROSS CUT) ENRICH OIL CORPORATION 16188 JIMMY MARSHALL WILDCAT 3H CONSULTING, LLC 19450 JL MCMASTER A 13-16 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18727 JL MCMASTER C 13-13 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18731 JL MCMASTER 155-15 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19495 JL MCMASTER 155-156 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19492 JL MCMASTER 155-156 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18823 JL MCMASTER 155-156 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19475 JL MCMASTER 155-156 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18826 JL MCMASTER 155-23 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19480 JL MCMASTER 155-23 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19474 JL MCMASTER 155-4 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19473 JL MCMASTER 155-4 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19042 JO ANN SPRABERRY (TREND AREA CL. FK.) DIAMONDBACK E&P LLC 14894 JO ELLA ARLEDGE (PENN SAND) BREITBURN OPERATING L.P. 07926 JOANN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17267 JOEHANKS SPRABERRY (TREND AREA) COG OPERATING LLC 16359 JOHN CARR SPRABERRY (TREND AREA) BASA RESOURCES, INC. 08539 JOHN LEE MCMASTER SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17208 JOHN SMOLTZ (30-33) SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19985 JOHN SMOLTZ '30-33' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19983


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ JOHN SMOLTZ 30 AND 33 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19984 JOHN SMOLTZ 30-33 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19433 JOHNED SPRABERRY (TREND AREA) WTG EXPLORATION 19028 JOHNSON CHRISTOVAL, N. (SWASTIKA) DURANGO RESOURCES CORP. 08009 JOHNSON JAMESON (STRAWN) JATAM INC. 10912 JOHNSON REFOIL (3200 SAND) BEDROCK PRODUCTION, LLC 10283 JOHNSON REFOIL (3200 SAND) SUNSET LEASES LLC 04206 JOHNSON WATER VALLEY (CLEAR FORK) GILSTRAP, JOEL 02650 JOHNSON WATER VALLEY (SAN ANDRES) GILSTRAP, JOEL 02093 JOHNSON WATER VALLEY (SAN ANDRES) GILSTRAP, JOEL 07096 JOHNSON -B- JAMESON (STRAWN) GRIZZLY OP OF DELAWARE, LLC 03091 JOHNSON "A" JAMESON (STRAWN) SUPREME ENERGY COMPANY, INC. 03195 JOHNSON "B" JAMESON (STRAWN) JATAM INC. 10888 JOHNSON "C" JAMESON (STRAWN) VISION EXPLORATION LLC 10900 JOHNSON "D" JAMESON (STRAWN) VISION EXPLORATION LLC 13184 JOHNSON "E" JAMESON (STRAWN) GRIZZLY OP OF DELAWARE, LLC 13185 JOHNSON "J" MADORA (TILLERY) GOLDEN SPECIALTIES OIL & GAS 07115 JOHNSON ESTATE BEEKEEPER (PALO PINTO) PETRO-SMITH OPERATING LLC 14878 JOHNSON, E. J. -45- BENEDUM (SPRABERRY) DE3 OPERATING LLC 05985 JOHNSON, J. H. -B- WATER VALLEY (CLEAR FORK) WETWICK DRLG. & PROD. 04282 JOHNSON, J. H., -A- WATER VALLEY (SAN ANDRES) WETWICK DRLG. & PROD. 04193 JOHNSON, J. W. WILDCAT MAYO, EDDIE 15335 JOHNSON, J. W. MT. SUSAN, S. (STRN. LIME 5250) SOMMER OIL & GAS, LLC 12450 JOHNSON, J. WILLIS B-52 (STRAWN) ATLAS FUEL SUPPLY, LTD. 15809 JOHNSON, J. WILLIS JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 00634 JOHNSON, JOHN J. ENOCH JOHNSON (MORRIS SAND) BAKER OPERATING, INC. 17373 JOHNSON, LOU E. ESTATE -B- JAMESON (STRAWN) BREITBURN OPERATING L.P. 00664 JOHNSON, LOU E. ESTATE A/C 2 JAMESON (STRAWN) BREITBURN OPERATING L.P. 07940 JOHNSON, LOU E. ESTATE A/C 4 JAMESON (STRAWN) BREITBURN OPERATING L.P. 10998 JOHNSON, LOU E., ESTATE, A/C 1 JAMESON (STRAWN) BREITBURN OPERATING L.P. 00662 JOHNSON, M. C. BARNHART (QUEEN-H2S DISPOSAL) DAVIS GAS PROCESSING, INC. 15302 JOHNSON, M. C. PRICE (GRAYBURG) WTG EXPLORATION 11343 JOHNSON, R. D. ESTATE "N" NCT-1 DOODLEBUG (WOLFCAMP) MGR RESOURCES 12404 JOHNSON, R. D. ESTATE "N" NCT-2 DOODLEBUG (WOLFCAMP) XTO ENERGY INC. 12506 JOHNSTON WATER VALLEY (SAN ANDRES) GILSTRAP, JOEL 02099 JOHNSTON, J. H. WATER VALLEY (CLEAR FORK) GILSTRAP, JOEL 04633 JOHNSTON, J. H. WATER VALLEY (CLEAR FORK) WETWICK DRLG. & PROD. 04063 JOHNSTON, J. H. "B" WATER VALLEY (CLEAR FORK) GILSTRAP, JOEL 12244 JOHNSTON, J. T. -A- WATER VALLEY (SAN ANDRES) BLACK GOLD WELL SERVICE 02100 JOHNSTON, J. T. -B- WATER VALLEY (SAN ANDRES) BLACK GOLD WELL SERVICE 02842 JOHNSTON, J. T., EST. WATER VALLEY (SAN ANDRES) BLACK GOLD WELL SERVICE 02320 JOHNSTON, J.H. "A" WATER VALLEY (CLEAR FORK) GILSTRAP, JOEL 12074 JONES WILDCAT TKP PETROLEUM, INC. 14809 JONES DORMAN, WEST (GOEN) DELTEX MINERALS INC. 13097 JONES DOVE CREEK, E. (CLEAR FORK 1075) ARMOR PETROLEUM, INC. 09164 JONES HOUR (STRAWN) SOJOURNER DRILLING CORPORATION 08845 JONES JONES (PALO PINTO) TKP PETROLEUM, INC. 08954 JONES JONES RANCH (CADDO) BAGLEY, ROY 12220 JONES PANACEA (MIDDLE PALO PINTO) TKP PETROLEUM, INC. 14516 JONES PANACEA (UPPER PALO PINTO) TKP PETROLEUM, INC. 14698 JONES REGAL (WOLFCAMP) OXY USA INC. 15066


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ JONES "A" DOVE CREEK, E. (CLEAR FORK 1075) ARMOR PETROLEUM, INC. 09420 JONES "A" REGAL (WOLFCAMP) OXY USA INC. 15082 JONES "C" ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 09754 JONES "C" REGAL (WOLFCAMP) SILVER OIL & GAS INC. 12969 JONES RANCH 157 SAWYER (LEONARD) UPP OPERATING, LLC 17088 JONES-MILLER OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 15582 JONES, E. D. "A" ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 11012 JONES, J. G. ET AL JONES RANCH (CADDO) BAGLEY, ROY 11618 JONES, JOHN G. "818" HEART OF TEXAS (MARBLE FALLS) R & D OPERATING, INC. 10777 JONES, T. K. UNIT REGAL, SOUTH (WOLFCAMP) TXP, INCORPORATED 12870 JONES36W REGAL (WOLFCAMP) OXY USA INC. 15243 JORDAN N 23-24 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20370 JORDAN NN 23-24 SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 20377 JORDAN O 23-24 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20372 JORDAN OO 23-24 SPRABERRY (TREND AREA) R 40 EXC DE3 OPERATING LLC 20378 JORDYN BUCK TRAP (WOLFCAMP) COG OPERATING LLC 14962 JORDYN SPRABERRY (TREND AREA) COG OPERATING LLC 16834 JOSHUA 32-51 A SPRABERRY (TREND AREA) R 40 EXC HENRY RESOURCES LLC 20842 JOSHUA 32-51 B SPRABERRY (TREND AREA) R 40 EXC HENRY RESOURCES LLC 20843 JOSHUA 32-51 C SPRABERRY (TREND AREA) R 40 EXC HENRY RESOURCES LLC 20844 JOSIE FENNELL (GOEN) GAEDEKE OIL & GAS OPERATING, LLC 16267 JOY SPRABERRY (TREND AREA) COG OPERATING LLC 15615 JOYCE SPRABERRY (TREND AREA) COG OPERATING LLC 15789 JOYCE P2 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19621 JOYCE UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19262 JOYCE, MARY DOW-MAYER (SPRABERRY DEAN) TRACKER RESOURCE DEV III, LLC 06445 JRS FARMS '22-27' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19488 JRS FARMS 22 AND 27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19517 JRS FARMS 22-27 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19493 JRS FARMS (22-27) SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19691 JRS FARMS *22-27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19690 JRS FARMS #22-27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19618 JRS FARMS "24" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17136 JRS FARMS "24A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17969 JRS FARMS "30A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17723 JRS FARMS 18A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17956 JRS FARMS 22 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19090 JRS FARMS 22 SWD SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20274 JRS FARMS 22-27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20507 JRS FARMS 24BC SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18932 JRS FARMS 30 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17950 JRS FARMS 30A DAVIS (PENNSYLVANIAN) PARSLEY ENERGY OPERATIONS, LLC 19061 JUDY SPRABERRY (TREND AREA) SM ENERGY COMPANY 15881 JUDY WFM (GOEN LIME) ENRICH OIL CORPORATION 18272 JUDY JULIBETH (SA) A SPRABERRY (TREND AREA) SM ENERGY COMPANY 19513 JUDY JULIBETH (SA) B SPRABERRY (TREND AREA) SM ENERGY COMPANY 19514 JUDY JULIBETH (SA) C SPRABERRY (TREND AREA) SM ENERGY COMPANY 19533 JUDY JULIBETH (SA) D SPRABERRY (TREND AREA) SM ENERGY COMPANY 19534 JUDY JULIBETH (SA) E SPRABERRY (TREND AREA) SM ENERGY COMPANY 19535 JULIE LITTLE DOG (CAMAR) PAINT ROCK OPERATING, LLC 16590 JULIE SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16077


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ JULIE "S" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16741 JULIE "SA" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16766 JULIE HUGHES UNIT 8-3 SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20506 JUNE SPRABERRY (TREND AREA) COG OPERATING LLC 15622 JUNE UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19464 JUSTIN LEE MCMASTER-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17216 JUSTIN LEE MCMASTER-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17449 JUSTIN LEE MCMASTER-C- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17379 JWG C2 SPRABERRY (TREND AREA) COG OPERATING LLC 16192 JWG H2 SPRABERRY (TREND AREA) COG OPERATING LLC 16108 JWG L2 SPRABERRY (TREND AREA) COG OPERATING LLC 16313 JWG M2 SPRABERRY (TREND AREA) COG OPERATING LLC 17505 K BIRD 8 SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 18590 K-BIRD '12-13' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19293 K-BIRD 12 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19189 K-BIRD 12 AND 13 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19364 K-BIRD 12-13 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19201 K-BIRD 8 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 19065 KAITLYN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16488 KALEB W.J.S. (CANYON) DISCOVERY OPERATING, INC. 15692 KALEIGH DAWN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17411 KALEIGH DAWN "B" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17181 KALEIGH DAWN A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17440 KANEB-UNIVERSITY "5" FARMER (SAN ANDRES) OTB OPERATING, LLC 11792 KAREN SPRABERRY (TREND AREA) COG OPERATING LLC 16447 KAREN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16478 KAREN "A" SPRABERRY (TREND AREA) COG OPERATING LLC 16883 KAREN P1 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19882 KAREN UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19374 KARI OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 19288 KARISSA SPRABERRY (TREND AREA) COG OPERATING LLC 16659 KARISSA STATE LITTLE MESA (WOLFCAMP) WHITE ROCK OIL & GAS, LLC 18747 KASHMIR A SPRABERRY (TREND AREA) APACHE CORPORATION 20344 KASHMIR AX SPRABERRY (TREND AREA) APACHE CORPORATION 20374 KASSIDY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18630 KATE A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16971 KATHRYN SPRABERRY (TREND AREA) SM ENERGY COMPANY 15698 KATHRYN (44-5) SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19854 KATHRYN '41-32' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19292 KATHRYN '43-42' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19823 KATHRYN '44-5' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19289 KATHRYN SWD 42 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19997 KATHRYN 41-32 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19117 KATHRYN 43 AND 42 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20073 KATHRYN 43-42 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19414 KATHRYN 43-42-B-44 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19944 KATHRYN 44 AND 5 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19421 KATHRYN 44-5 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19144 KATHRYN 44-5-A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20904 KATHY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18534 KATIE SPRABERRY (TREND AREA) SM ENERGY COMPANY 15802


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ KAYLA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18629 KAYLA S SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18930 KC 51 VELREX (HENDERSON UPPER) DISCOVERY OPERATING, INC. 19394 KEELE SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 12841 KEHEW SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08025 KEHEW SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 13978 KEHEW A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11957 KELLERMEIER STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 16501 KELLERMEIER, W. L. S.S.R. (CANYON, UPPER) CONCHO OILFIELD SERV & OPER CO. 09175 KELLI SHEFFIELD, SE (DEVONIAN) ROMINE OIL & GAS, LLC 18779 KELLI SPRABERRY (TREND AREA) COG OPERATING LLC 18244 KELLY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16242 KELSEY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17714 KENDRA SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16626 KENDRA A UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18208 KENDRA B UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18313 KENDRA C UNIT SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18532 KENNEDY & SONS TIPPETT KENNEDY, R. R. PRODUCTION, INC. 14611 KENNETH SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10398 KENNETH -A- SPRABERRY (TREND AREA) DE3 OPERATING LLC 01614 KENNETH "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10915 KENNETH "E" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11904 KENNETT '29' SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 19017 KENNETT SHERROD 37-48 UNIT 2 SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 20519 KENNETT SHERROD 42-43 UNIT 2 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20188 KENNETT SHERROD 42-43 UNIT 2 SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 20451 KENNETT 29-41 UNIT 1 SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 19335 KENNETT 29-41 UNIT 2 SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 19636 KENT KENT (STRAWN) LAVANCO ENERGY, LTD. 15937 KENT 182 KENT (STRAWN) LAVANCO ENERGY, LTD. 16920 KERR -4- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14024 KERR-MCGEE-SUGGS LUCKY CANYON (ELLEN.) GANADOR OPERATING, LLC 17710 KESSLER "77" SPRABERRY (TREND AREA) APACHE CORPORATION 11076 KETCHUM MOUNTAIN EAST UNIT KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 14918 KETCHUM MT. (CLEAR FORK) UNIT KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 06725 KEUREN, VAN VAN KEUREN (SAN ANGELO) PERIMETER RESOURCE COMPANY 13127 KEY, WILMA SPRABERRY (TREND AREA) HUNT OIL COMPANY 12814 KEY, WILMA SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 11218 KIESLING VERIBEST, EAST (HARKEY) HMT PIPELINE COMPANY, INC. 12235 KILE KENT (STRAWN) LAVANCO ENERGY, LTD. 16936 KILE SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 03774 KILE 1 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 16531 KILE 1213 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 16532 KILE, M.G. -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06396 KILE,M.G. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06342 KIMBERLEA SPRABERRY (TREND AREA) COG OPERATING LLC 16638 KIMBROUGH-WHITFIELD DEIKE (GOEN) HARDROCK RESOURCES INC. 08190 KINCAID, A. R. TRUST HELBING (CLEARFORK) EPIC PERMIAN OPERATING, LLC 15773 KINCAID, A. R. TRUST 'C' OZONA (CANYON SAND, OIL) EPIC PERMIAN OPERATING, LLC 13725 KINCAID, A. R. TRUST "C" OZONA, NE. (CANYON SAND) EPIC PERMIAN OPERATING, LLC 15837 KINCAID, A.R. TRUST OZONA, NE. (CANYON SAND) EPIC PERMIAN OPERATING, LLC 15360


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ KING MCCAMEY TRIPP & SONS, LLC 00843 KING MCLARTY (GOEN) TKP PETROLEUM, INC. 13115 KING MOUNTAIN MCCAMEY (WICHITA ALBANY) NICLANE ENERGY, INC. 16291 KING RANCH FRADEAN (DEVONIAN) WALSH & WATTS, INC. 10038 KING RANCH FRADEAN (STRAWN) WALSH & WATTS, INC. 03698 KING RANCH OIL & LIGNITE CO. MCCAMEY PHARAOH OIL & GAS, INC. 09245 KING, COURTNEY WILDCAT RMB OPERATING LLC 16823 KING, J. H. MCCAMEY MOSAIC MIDLAND LLC 00871 KING, J.H. MCCAMEY, W. (JOINS) XOG OPERATING LLC 14817 KING, RICHARD MCCAMEY XOG OPERATING LLC 00946 KING, RICHARD NCT-1 MCCAMEY PHARAOH OIL & GAS, INC. 00955 KIRA SPRABERRY (TREND AREA) SM ENERGY COMPANY 15818 KIRBY FARMER (SAN ANDRES) REDDIRT OPERATING, LLC. 17000 KIRKHAM, D.J. KIRKHAM (GARDNER, UPPER) SMITH PIPE OF ABILENE 10094 KIRKHAM, ET AL CLARKE (GARDNER) GINCO OPERATING CO. 07393 KIRKHAM, ET AL "A" CLARKE (GARDNER) GINCO OPERATING CO. 07777 KMNV WILDCAT TRACKER RESOURCE DEV III, LLC 18772 KMSV SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 19859 KNEUPPER MCCAMEY MOSAIC MIDLAND LLC 17479 KNIGHT JAMESON (STRAWN) PIMA ENERGY, LLC 11797 KNIGHT -G- JAMESON (STRAWN) JATAM INC. 06839 KNIGHT "D" JAMESON (STRAWN) JATAM INC. 07244 KNIGHT BATTERY A JAMESON (STRAWN) JATAM INC. 04004 KNIGHT, HAL JAMESON (STRAWN) JATAM INC. 03298 KNIGHT, HICKS ETC. B JAMESON (STRAWN) JATAM INC. 13241 KNIGHT, W. T. JAMESON (STRAWN) JATAM INC. 08232 KNIGHT, W. T. "142" JAMESON (STRAWN) MINERAL TECHNOLOGIES, INC. 10496 KNOLLE, OLGA SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14133 KONG MCCAMEY XOG OPERATING LLC 16941 KOTHMANN FERRIS (CONSOLIDATED KING-HOPE) WALSH & WATTS, INC. 19440 KOY UNIT PAGE UNITEX OIL & GAS, L.L.C. 03485 KRIEG, N. WILDCAT MESA ENERGY OPERATING, LLC 13264 KRIS SPRABERRY (TREND AREA) HUNT OIL COMPANY 18316 KRISTINA LEIGH SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17003 KRUEGER UNIT URBAN (MILES) MERCEDES PETROLEUM, LTD 09424 KRUSE HALLORAN (CROSS CUT) SMITH PIPE OF ABILENE 14485 KURTZ DEIKE (FRY) MM CHINA STAR OIL CO., LLC 15923 KURTZ 'A' DEIKE (FRY) MM CHINA STAR OIL CO., LLC 16923 KWB UNIT K. W. B. (STRAWN) BARROW-SHAVER RESOURCES CO. 17755 KWB UNIT K. W. B. (STRAWN) SONORAN ENERGY INC. 13227 KYLIE A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 20253 KYLIE B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 20263 KYLIE D SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 20244 KYNDALL SPRABERRY (TREND AREA) TRP OPERATING LLC 16768 KYNDALL "A" SPRABERRY (TREND AREA) TRP OPERATING LLC 16765 KYNDALL "B" SPRABERRY (TREND AREA) TRP OPERATING LLC 17114 KYNDALL C SPRABERRY (TREND AREA) TRP OPERATING LLC 18443 L. SCHAEFER OIL UNIT SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17567 LACKEY-JACK LUCKY MAG (CONSOLIDATED) SBJ OIL & GAS, LLC 17240 LACKEY, MARK LUCKY-MAG (SAN ANGELO) J. COMPANY 07974 LADD-PIERCE "100" V. I. P. (CLEAR FORK MIDDLE) TIDWELL PRODUCTION COMPANY 11513


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ LANDA-VANCIL ANDERGRAM, S. (SERRATT) 3-D OIL & GAS 17376 LANDA-VANCIL BALLINGER (PALO PINTO, N.) 3-D OIL & GAS 03937 LANDREE 5 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18994 LANE HELUMA, W. (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 06246 LANE -B- AMACKER-TIPPETT, S. (BEND) EOG RESOURCES, INC. 04139 LANE -B- AMACKER-TIPPETT, S (DEVONIAN) EOG RESOURCES, INC. 06815 LANE "A" AMACKER-TIPPETT,S(DETRITAL 9270) GOLDEN SPECIALTIES OIL & GAS 08252 LANE "A" SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 13987 LANE "B" AMACKER-TIPPETT (STRAWN) EOG RESOURCES, INC. 10067 LANE "11" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17291 LANE "11A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17412 LANE "2" TRIUMPH (WOLFCAMP) PETROPLEX ENERGY INC. 13620 LANE TR E 43-42 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19813 LANE TR E 43-42 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19827 LANE TR E 43-42 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18992 LANE TR E 43-42 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19829 LANE TR E 43-42 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19828 LANE TR E 43-42 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18726 LANE TRUST-D- ROBLE GRANDE (STRAWN\WOODFORD) LAREDO PETROLEUM, INC. 18935 LANE TRUST-D- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17825 LANE TRUST-E- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18672 LANE 44 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14068 LANE, B. AMACKER-TIPPETT, S. (BEND, UP.) EOG RESOURCES, INC. 04217 LANE, J. F. MCCAMEY BUSTOS, MARTIN OIL 00932 LANE, J. F. -A- ACT. #2 MCCAMEY (DEVONIAN) APV MCCAMEY LLC 12762 LANE, J. F. -A- ACT.#2 MCCAMEY (ELLENBURGER) APV MCCAMEY LLC 05671 LANE, J. F. -E- MCCAMEY PHARAOH OIL & GAS, INC. 04538 LANE, J. F., -A- A/C2 MCCAMEY (SILURIAN) APV MCCAMEY LLC 05156 LANE, JOHN CORDOVA (ATOKA) APV MCCAMEY LLC 12598 LANE, JOHN CORDOVA (STRAWN) APV MCCAMEY LLC 12662 LANE, JOHN #2 BPO CORDOVA (STRAWN) APV MCCAMEY LLC 14528 LANE, JOHN "1" CORDOVA (STRAWN) APV MCCAMEY LLC 14508 LANE, JOHN F. MCCAMEY (ELLENBURGER) APV MCCAMEY LLC 14664 LANE, LEE CORDOVA (STRAWN) PHARAOH OIL & GAS, INC. 14609 LANE, O. N. "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14234 LANE, W. H. SPRABERRY (TREND AREA) CHEVRON MIDCONTINENT, L.P. 13985 LANEY A SPRABERRY (TREND AREA) COG OPERATING LLC 16763 LANEY B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18477 LANG DARE I (HOPE) CONCHO OILFIELD SERV & OPER CO. 17683 LANG A WILDCAT CONCHO OILFIELD SERV & OPER CO. 16559 LANGE LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17459 LANGE ROWENA (CAPPS LIME) J V A OPERATING COMPANY, INC. 01239 LANGE SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18254 LANGE A LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19213 LANGE AA POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19523 LANGE AB POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19530 LANGE AC POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 20257 LANGE FARM ROWENA (CAPPS, LOWER) J V A OPERATING COMPANY, INC. 17605 LANGE-MOELLER UNIT ROWENA (JENNINGS) J V A OPERATING COMPANY, INC. 18170 LANGE, A. K. MERTZON, WEST (CLEAR FORK) J & J SERVICES COMPANY 13269 LANGE, GEORGE ASHTON (DOG BEND) WALSH RESOURCES, INC. 08213


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ LANGE, W. F. -A- BEDDO 3-D OIL & GAS 04443 LANGE, W. F. "A" QUICK (GOEN, UPPER) DELTEX MINERALS INC. 11445 LANGFORD "44"-1 SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 11097 LANGFORD "44"-2 SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 11098 LAQUITA SPRABERRY (TREND AREA) COG OPERATING LLC 15502 LAQUITA ELIZABETH AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 14928 LAQUITA ELIZABETH SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16995 LARAH SPRABERRY (TREND AREA) FIREBIRD ENERGY LLC 16608 LARISSA SPRABERRY (TREND AREA) COG OPERATING LLC 15897 LARRIMORE LAS MORAS (CADDO) WILLOWBEND INVESTMENTS, INC. 11651 LAS MORAS RANCH #207 RUSS T (PENN. DETRITAL) CAZAR ENERGY INC 15449 LASSITER MEADOW CREEK (CANYON) COLO EXPLORATION COMPANY, INC. 07356 LATRICE SPRABERRY (TREND AREA) COG OPERATING LLC 15974 LATTNER SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 08207 LATZEL 34 SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19123 LATZEL 3946 A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19977 LATZEL 3946 B SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 20002 LATZEL 3946 C SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19994 LATZEL 3946 D SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19995 LATZEL 3946 E SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19971 LATZEL 3946 F SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19999 LAURA SPRABERRY (TREND AREA) COG OPERATING LLC 16775 LAURA D SPRABERRY (TREND AREA) COG OPERATING LLC 18403 LAURAJEAN SPRABERRY (TREND AREA) COG OPERATING LLC 15504 LAURAJEAN UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19261 LAUREN SHEFFIELD, SE (CLEAR FORK) ROMINE OIL & GAS, LLC 19084 LAUREN SPRABERRY (TREND AREA) COG OPERATING LLC 15835 LAURIE GWEN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19086 LEAH SPRABERRY (TREND AREA) COG OPERATING LLC 15480 LEE BLOCK 42 (WOLFCAMP) SUMMIT PETROLEUM LLC 15722 LEE COCKATOO (GARDNER) WINDOW OPERATING CO., THE 20497 LEE STAR LIGHT (HOPE) STAR PRODUCTION, INC. 16710 LEE STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 15948 LEE 'A' J. NICHOLS (KING SAND) JASPER ENERGY, INCORPORATED 16999 LEE "G" FWB (CANYON SAND) ATLAS OPERATING LLC 12004 LEE "N" GIEBEL (STRAWN) TANKERSLEY SWD LLC 12319 LEE SOUTH STAR LIGHT (HOPE) STAR PRODUCTION, INC. 16758 LEE SOUTH STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 16358 LEE UNIT STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 16276 LEEPER ARLEDGE BREITBURN OPERATING L.P. 08168 LEESON SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 10517 LEESON-NUNN SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 04884 LEESON, S. H. SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 15911 LEESON, S. R. ETAL SPRABERRY (TREND AREA) MCCLURE OIL COMPANY, INC. 02514 LEHMAN, H. F. "D" NORA (KING SAND) IMPERATOR OPERATING, LLC 11829 LEHMAN, H. G. NORA (KING SAND) IMPERATOR OPERATING, LLC 11603 LELON BRYAN LEASE MYRNA LYNN SHADYBROOK PETROLEUM COMPANY 16821 LENA LEE 41 SPRABERRY (TREND AREA) OVINTIV USA INC. 18225 LEO COX MILLS #11 OZONA (CLEAR FORK, UPPER) BONFIRE OPERATING LLC 18116 LEONA "KNK" MCLARTY (GOEN) 3-D OIL & GAS 12750 LEONA "166" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14053


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ LEONARD WILDCAT LANDMASTER PARTNERS, INC. 18114 LEONARD M.A.W. (SERRATT) LANDMASTER PARTNERS, INC. 20207 LEONARD SPRABERRY (TREND AREA CL. FK.) DIAMONDBACK E&P LLC 12063 LESLEY SPRABERRY (TREND AREA) TRP OPERATING LLC 17180 LESLIE TURNER FUNK (SAN ANDRES) REDBUD E & P, INC. 18028 LESLIE TURNER JUNE ANN (PENNSYLVANIAN) REDBUD E & P, INC. 19810 LETHA JACOBY TRUST WILHELM LANE (HOPE LIME) OTEX LLC 15321 LEWIS "31" PINK DRAW (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 15804 LEWIS, MODENA ET AL JAMESON, SW. (STRAWN) JATAM INC. 07787 LHS RANCH SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 18819 LHS RANCH 4-40 ALLOC 4004 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 19962 LHS RANCH 4-40 ALLOC 4014 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 19961 LIBBY SPRABERRY (TREND AREA) COG OPERATING LLC 15806 LIGHTSEY, EARL WILDCAT BIG RUN PRODUCTION COMPANY 14747 LILAJO SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 15991 LILLY SPRABERRY (TREND AREA) COG OPERATING LLC 16892 LILLY KATE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16469 LIN B W.O.D. (CANYON) DISCOVERY OPERATING, INC. 15677 LIN CY W.O.D. (CANYON) DISCOVERY OPERATING, INC. 13514 LIN CZ W.O.D. (CANYON) DISCOVERY OPERATING, INC. 15933 LIN E W.O.D. (CANYON) DISCOVERY OPERATING, INC. 15762 LIN H OZONA, NE (WOLFCAMP) DISCOVERY OPERATING, INC. 20028 LINDA FENNELL (KING SAND) 3-D OIL & GAS 17462 LINDA 1 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17846 LINDLEY ROCK PEN (CANYON) J2 PETROLEUM LLC 08496 LINDLEY SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02577 LINDLEY -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02812 LINDLEY -BD- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14139 LINDLEY "A" CHRISTI (CANYON 6800) MDM ENERGY, INC. 10975 LINDLEY "A" ROCK PEN (CANYON) J2 PETROLEUM LLC 08960 LINDLEY "C" CHRISTI (CANYON 6800) J & J SERVICES COMPANY 15254 LINDLEY "40" ROCK PEN (CANYON) J2 PETROLEUM LLC 09727 LINDLEY, FRANK CHRISTI (CANYON 6800) MDM ENERGY, INC. 15454 LINDLEY, FRANK -A- CHRISTI (CANYON 6800) J & J WELL SERVICE, INC. 06014 LINDLEY, HENRY MERTZON, WEST (CLEAR FORK) J & J SERVICES COMPANY 03504 LINDSEY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16988 LINDSEY, DEWAYNE CORBETT (BEND DETRITAL) ENDEAVOR ENERGY RESOURCES L.P. 10157 LINDSEY, DEWAYNE CORBETT (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 14930 LINDSEY, DEWAYNE CORBETT, N. (ELLENBURGER) ENDEAVOR ENERGY RESOURCES L.P. 10878 LINK SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04039 LINSEY ELIZABETH SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16959 LINTHICUM LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 16797 LINTHICUM LIN (WOLFCAMP) LINCO OIL COMPANY 11000 LINTHICUM LINTHICUM (LEONARD) HENRY PETROLEUM LLC 08416 LINTHICUM 'A' LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17972 LINTHICUM B LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19596 LINTHICUM C LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19849 LINTHICUM I LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17544 LINTHICUM M LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17613 LINTHICUM WASHINGTON LIN (WOLFCAMP) FORELAND OPERATING, LLC 18136 LINTHICUM, E. H. IRION 163 (CLEAR FORK) MUNSON, DAVID M. INC. 12972


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ LISA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19097 LITTLE SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06242 LIVE OAK COX CLARA COUCH,SOUTH (SAN ANDRES) V-F PETROLEUM INC. 13255 LIVELY-KNIGHT "74" JAMESON (STRAWN) VIRTEX OPERATING COMPANY, INC. 11113 LIVESTOCK, JACOBS A/C 1 HELUMA (PENN.) LEGACY RESERVES OPERATING LP 10699 LIVINGSTON FUNK (SAN ANDRES) BANNER OPERATING, LLC 17420 LIVINGSTON FUNK (SAN ANDRES) THP OPERATING LLC 16890 LIVINGSTON 22 WILDCAT BANNER OPERATING, LLC 16399 LIZZY "B" CELERY (GUNSIGHT) OTEX LLC 14965 LLOYD PAINT ROCK, S. (GOEN LIME) LILLIS, MICHAEL D. 17648 LLOYD, JOHN SPECK, NORTH (STRAWN) PURVIS OPERATING CO. 07913 LOFTIN SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 03918 LOFTIN SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 05585 LOFTIN -A- SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 05584 LOFTIN HUGHES 1211 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19336 LOFTIN HUGHES 1211 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20673 LOFTIN HUGHES 1211 A LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19339 LOFTIN HUGHES 1211 A SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20674 LOFTIN HUGHES 13-1212 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18602 LOFTIN HUGHES 13-1212 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20675 LOGAN OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 18404 LOIS SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 15939 LOIS A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19377 LOIS B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19405 LOIS H SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19186 LONE STAR AMETHYST (WOLFCAMP) ENDEAVOR ENERGY RESOURCES L.P. 15479 LONE STAR "73A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16416 LONE STAR "73B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16485 LONE STAR "73C" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16592 LONE STAR "73D" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16875 LONE STAR "73E" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16899 LONE STAR "73F" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17076 LONE STAR "73G" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17197 LONE STAR SCHLEICHER WILDCAT OASIS PETROLEUM, LLC 15963 LONE WOLF 12 SPRABERRY (TREND AREA) DE3 OPERATING LLC 19161 LONESTAR SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16443 LONG SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 11623 LOPEZ CREEK LUCKY MAG (CONSOLIDATED) BOYD & MCWILLIAMS ENERGY GROUP 17033 LOPEZ CREEK ROCK PEN (CANYON) BOYD & MCWILLIAMS ENERGY GROUP 09381 LORA LYNN SPRABERRY (TREND AREA) COG OPERATING LLC 17212 LORIE 26 LIN (WOLFCAMP) FORELAND OPERATING, LLC 18253 LOS NINOS HALL (SAN ANDRES) ELCO OIL & GAS, INC. 12229 LOTHLORIEN 20 SPRABERRY (TREND AREA) R 40 EXC CROWNQUEST OPERATING, LLC 19129 LOTTIE AMACKER-TIPPETT, SE(BEND 10600) THOMPSON, J. CLEO 15877 LOTTIE SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 15955 LOUANN HOLT RANCH (CONSOLIDATED) BARRON PETROLEUM LLC 19100 LOUANN OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 18633 LOUIS SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18705 LOUIS 31-30A-E SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20474 LOVELACE H & R (GOEN LIME) PAINT ROCK OPERATING, LLC 16001 LOZANO A UNIT WILDCAT MEXTEX OPERATING COMPANY 18874


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ LUBKE PIPE DREAM (KING SAND) MARSHALL & WINSTON, INC. 13363 LUCKY V A DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 19340 LUCKY V C DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 19323 LUCKY V UNIT B DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 19322 LUCKY-PFLUGER UNIT DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 21034 LUCY LINDSAY 1-36-H SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20202 LUCY LINDSEY SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 17109 LUCY SWD FENNELL (GOEN) GAEDEKE OIL & GAS OPERATING, LLC 15834 LUEDECKE "110" RAMON (LEONARD) OXY USA INC. 15101 LUNDEN SPRABERRY (TREND AREA) COG OPERATING LLC 18298 LV FRIEND FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 08419 LV FRIEND A FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 08662 LYLE -C MCCAMEY, W. (DEV.) XOG OPERATING LLC 15596 LYNCH TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05285 LYNCH TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05696 LYNCH TIPPETT, NORTH (ELLENBURGER) WTG EXPLORATION 05403 LYNCH TIPPETT, NORTH (MCKEE) WTG EXPLORATION 05847 LYNCH TIPPETT, W. (WOLFCAMP 5050) WTG EXPLORATION 13332 LYNCH TIPPETT, W. (WOLFCAMP 5500) WTG EXPLORATION 18915 LYNCH NORTH 30 SPRABERRY (TREND AREA) TRP OPERATING LLC 17820 LYNCH 20 TIPPETT (CLEAR FORK LO.) LEGACY RESERVES OPERATING LP 05686 LYNCH 25 TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05767 LYNCH 25 TIPPETT, N. (WOLFCAMP 5850) WTG EXPLORATION 05780 LYNCH10 SPRABERRY (TREND AREA) TRP OPERATING LLC 16549 LYNCH14 SPRABERRY (TREND AREA) TRP OPERATING LLC 17860 LYNCH15 SPRABERRY (TREND AREA) COG OPERATING LLC 15627 LYNCH15 P1 SPRABERRY (TREND AREA) COG OPERATING LLC 18228 LYNCH16 SPRABERRY (TREND AREA) COG OPERATING LLC 15619 LYNCH17 SPRABERRY (TREND AREA) COG OPERATING LLC 15653 LYNCH18 SPRABERRY (TREND AREA) COG OPERATING LLC 15628 LYNCH19 SPRABERRY (TREND AREA) COG OPERATING LLC 15637 LYNCH2 SPRABERRY (TREND AREA) COG OPERATING LLC 16259 LYNCH24 SPRABERRY (TREND AREA) COG OPERATING LLC 15702 LYNCH25 SPRABERRY (TREND AREA) COG OPERATING LLC 15699 LYNCH26 SPRABERRY (TREND AREA) COG OPERATING LLC 16690 LYNCH27 SPRABERRY (TREND AREA) COG OPERATING LLC 16845 LYNCH28 SPRABERRY (TREND AREA) COG OPERATING LLC 15799 LYNCH29 SPRABERRY (TREND AREA) TRP OPERATING LLC 16186 LYNCH30 SPRABERRY (TREND AREA) TRP OPERATING LLC 16723 LYNCH5 SPRABERRY (TREND AREA) COG OPERATING LLC 16343 LYNCH50 SPRABERRY (TREND AREA) TRP OPERATING LLC 16479 LYNCH51 SPRABERRY (TREND AREA) COG OPERATING LLC 16419 LYNCH52 SPRABERRY (TREND AREA) COG OPERATING LLC 16504 LYNCH53 SPRABERRY (TREND AREA) TRP OPERATING LLC 16583 LYNCH55 SPRABERRY (TREND AREA) COG OPERATING LLC 16315 LYNCH56 SPRABERRY (TREND AREA) TRP OPERATING LLC 16185 LYNCH59 SPRABERRY (TREND AREA) COG OPERATING LLC 16213 LYNCH6 SPRABERRY (TREND AREA) TRP OPERATING LLC 16269 LYNCH7 SPRABERRY (TREND AREA) TRP OPERATING LLC 16362 LYNN, HARRY EST. BALLINGER (PALO PINTO, N.) INSPIRE OIL AND GAS INC. 08033 LYNN, HARRY ESTATE BALLINGER (PALO PINTO, N.) INSPIRE OIL AND GAS INC. 07444


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ LYON, E. F. MCCAMEY TRIPP & SONS, LLC 03599 LYONS, E. E., JR. CASTLE GAP (SAN ANDRES) TRIPP & SONS, LLC 04779 M. TORRES COW KILLER (GOEN) CONCHO OILFIELD SERV & OPER CO. 17023 M.B. NOELKE "2" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15846 MACK SIEGENTHALER SWD WEGER (SAN ANDRES) COHORT PETROLEUM MANAGEMENT, LLC 18998 MADELINE KATE SPRABERRY (TREND AREA) COG OPERATING LLC 16631 MADISON SPRABERRY (TREND AREA) SM ENERGY COMPANY 15945 MADISON WEST 13 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20498 MADOLYN SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16087 MAGGARD MYRNA LYNN ANDERSON, JAMES K. INC. 12989 MAGGIE F & H (CISCO) DELFIN OPERATING, LLC 16537 MAGGIE F & H, EAST (COOK) DELFIN OPERATING, LLC 16385 MAGGIE F & H, N. (STRAWN) DELFIN OPERATING, LLC 16563 MAGGIE LITTLE DOG (CAMAR) DELFIN OPERATING, LLC 16274 MAGGIE SPRABERRY (TREND AREA) COG OPERATING LLC 15509 MAGGIE 12 LIN (WOLFCAMP) FORELAND OPERATING, LLC 18666 MAGRUDER LUCKY MAG (CONSOLIDATED) FOSSIL PETROLEUM LLC 17830 MAGRUDER ROCK PEN (CANYON) CARAWAY OPERATING CO. 10304 MAGRUDER ROCK PEN (CLEARFORK) CARAWAY OPERATING CO. 18152 MAGRUDER ROCK PERM (WOLFCAMP) THP OPERATING LLC 15091 MALEA AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 13857 MALLARD SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17362 MALLARD A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17796 MALLET "85" BARNHART, NE. (FUSSELMAN) TRIO CONSULTING & MANAGEMENT,LLC 15566 MALONE SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06179 MALONE SPRABERRY (TREND AREA) ROBERTS & HAMMACK INC. 01615 MALONE -B- SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 03841 MALONE -43- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14028 MALONE -44- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14016 MALONE -45- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06191 MALONE -9- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06288 MALONE #43 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14117 MALONE "1" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14116 MALONE "10" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14115 MALONE "48" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14118 MALONE D SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 16610 MALONE SWD SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09114 MALONE WEST 4-5 A SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20515 MALONE WEST 4-5 B SPRABERRY (TREND AREA) R 40 EXC EARTHSTONE OPERATING, LLC 20511 MALONE 1-3 A SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20119 MALONE-DANIEL SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14245 MALONE, CYNTHIA SPRABERRY (TREND AREA) BASA RESOURCES, INC. 03592 MALONE, CYNTHIA -B- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14134 MALONE, CYNTHIA ESTATE "A" ACR (CANYON) KATSCO ENERGY, INC. 11331 MALONE, CYNTHIA, -A- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04531 MALONE, CYNTHIA, -B- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04623 MANDI SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 16102 MANDI "A" SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 16103 MANDY OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 18420 MANN 20 TIPPETT (CLEAR FORK LO.) DARKENS OIL & GAS INC. 15166 MANN-LYNCH 22 UNIT 1 TIPPETT (LEONARD, LOWER) OLSEN ENERGY INC. 05621


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MANN-LYNCH 24 UNIT 1 TIPPETT (LEONARD, LOWER) OLSEN ENERGY INC. 05957 MANN, A. T. A T M (WOLFCAMP) XTO ENERGY INC. 12114 MANN, A. T. CROCKETT KLASSEN ENERGY, INC. 05196 MANN, A. T. TIPPETT, N. (WOLFCAMP 5850) WTG EXPLORATION 05852 MANN, A. T. "B" CROCKETT KLASSEN ENERGY, INC. 11084 MANN, A. T., -A- CROCKETT KLASSEN ENERGY, INC. 05253 MANN, ANN T./STATE SOUTHWEST MESA (WOLFCAMP) CUSTER & WRIGHT OPERATING, INC. 12526 MANN, ANN T., ETAL CROCKETT KLASSEN ENERGY, INC. 04483 MANN10 SPRABERRY (TREND AREA) TRP OPERATING LLC 16264 MANN14 SPRABERRY (TREND AREA) TRP OPERATING LLC 18041 MANN15 SPRABERRY (TREND AREA) COG OPERATING LLC 15600 MANN15 P1 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19536 MANN16 SPRABERRY (TREND AREA) COG OPERATING LLC 15740 MANN17 SPRABERRY (TREND AREA) COG OPERATING LLC 15754 MANN18 SPRABERRY (TREND AREA) COG OPERATING LLC 15634 MANN2 SPRABERRY (TREND AREA) COG OPERATING LLC 16338 MANN25 SPRABERRY (TREND AREA) COG OPERATING LLC 15682 MANN25 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18849 MANN28 SPRABERRY (TREND AREA) COG OPERATING LLC 16211 MANN30 SPRABERRY (TREND AREA) TRP OPERATING LLC 16307 MANN5 SPRABERRY (TREND AREA) COG OPERATING LLC 16342 MANN5 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18620 MANN50 SPRABERRY (TREND AREA) TRP OPERATING LLC 16308 MANN51 SPRABERRY (TREND AREA) COG OPERATING LLC 17400 MANN52 SPRABERRY (TREND AREA) COG OPERATING LLC 16851 MANN53 SPRABERRY (TREND AREA) TRP OPERATING LLC 16769 MANN55 SPRABERRY (TREND AREA) COG OPERATING LLC 16374 MANN56 SPRABERRY (TREND AREA) TRP OPERATING LLC 16348 MANN59 SPRABERRY (TREND AREA) COG OPERATING LLC 16373 MANN6 SPRABERRY (TREND AREA) TRP OPERATING LLC 16361 MANN7 SPRABERRY (TREND AREA) TRP OPERATING LLC 16405 MAPROCK SWD SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18099 MARADONNA MARADONNA (ELLENBURGER) TRILOGY OPERATING, INC. 15498 MARATHON SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 04243 MARATHON-GORDON BENEDUM (ELLENBURGER) DE3 OPERATING LLC 07658 MARCH RANCH HIGGINS RANCH (CANYON) SUNBURST, INC. 17652 MARCH RANCH HIGGINS RANCH (CANYON) SUNBURST, INC. 18931 MARCO 1601A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19266 MARCO 1601BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19369 MARCO 1601BU SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19267 MARCO 1602A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19550 MARCO 1602BU SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19537 MARCO 1603A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19545 MARCO 1603BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19538 MARGARET "36" ROCK PEN (CANYON) ARKLAND PRODUCING CO., INC. 11579 MARGARET "36" ROCK PERM (WOLFCAMP) ARKLAND PRODUCING CO., INC. 15000 MARGARET "36" SUGG-IRION (WICHITA-ALBANY) ARKLAND PRODUCING CO., INC. 15433 MARIE SPRABERRY (TREND AREA) COG OPERATING LLC 15836 MARIE UNIT LINDEMANN (JENNINGS) ATF PETROLEUM INC. 12799 MARIGLIANO FAWCETT (WOLFCAMP) UPP OPERATING, LLC 18396 MARJORIE SPRABERRY (TREND AREA) COG OPERATING LLC 15763


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MARLENA JOHNES (MIDDLE WLFC. DETRITAL) SUMMIT PETROLEUM LLC 14774 MARLIN-PENDULUM FENNELL (KING SAND) HORIZON EXPLORATION SERVICES 17249 MAROLYN PURE-BEAN, SOUTH WYNCO ENERGY, INC. 12230 MAROLYN "B" PURE-BEAN, SOUTH WYNCO ENERGY, INC. 13204 MARSHALL EXOC (980) MESA OPERATING, LLC 19812 MARTHA SPRABERRY (TREND AREA) COG OPERATING LLC 15636 MARTHANN CLEAR CREEK (CISCO) GOLDEN OIL AND RANCH, LLC 11117 MARTIN, CARLIS BUFFALO BLUFF (GOEN SD.) VIATHON HYDROCARBONS, INC. 10794 MARTIN, CHARLIE BUFFALO BLUFF 3-D OIL & GAS 11201 MARTIN, MARY LYNN ROYALTY TRUST SHANNON (SAN ANDRES) RSK OIL COMPANY 01266 MARY SPRABERRY (TREND AREA) COG OPERATING LLC 15535 MARY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17637 MARY "A" SPRABERRY (TREND AREA) COG OPERATING LLC 15822 MARY A UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19209 MARY ELLEN SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 16989 MARY K. SHIRK SHEEP MOUNTAIN (CONSOLIDATED) CAMBRIAN MANAGEMENT, LTD. 17939 MARY K. SHIRK SPRABERRY (TREND AREA) CAMBRIAN MANAGEMENT, LTD. 17651 MARY L. JACKSON S WILDCAT RECOVERY OPERATING LP 20166 MARY MENZIES WILHELM LANE (CANYON 3100) CONCHO OILFIELD SERV & OPER CO. 17908 MARY O AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 14935 MARY O SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18246 MARY ROSE A SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20971 MARY ROSE B SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20974 MARY ROSE C SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20975 MARY ROSE D SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20976 MARY 18 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19510 MARY 18 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18593 MARY 18-7-G SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19483 MARY 18-7-H SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19445 MARY 18-7A-A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19446 MARY 18-7A-AZ SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19484 MARY 18-7A-C SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20916 MARY 18-7A-D SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20918 MARY 18A-18 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18995 MARY 18A-18-E SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19291 MARY 18B SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18589 MASSIE -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01616 MASTERSON "A" SPRABERRY (TREND AREA) HUNT OIL COMPANY 14309 MASTERSON 48, T.R.B. SPRABERRY (TREND AREA) HUNT OIL COMPANY 04671 MASTERSON, T. R. B. SPRABERRY (TREND AREA) HUNT OIL COMPANY 02369 MATHEWS "S" JACK M. (SAN ANDRES) ARCH OIL & GAS, LLC 12163 MATHEWS STRAWN K. W. B. (STRAWN) ARCH OIL & GAS, LLC 16265 MATSCHEK UNIT STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 15655 MATT "31" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15709 MAYBERRY -39- TIPPETT (LEONARD, LOWER) LEGACY RESERVES OPERATING LP 05760 MAYBERRY, J.B. TIPPETT (WOLFCAMP UPPER) LEGACY RESERVES OPERATING LP 14564 MAYDEAN136 SPRABERRY (TREND AREA) COG OPERATING LLC 16564 MAYER ARDEN, S. (CANYON SD.) BURGUNDY OIL & GAS, INC. 11248 MAYER LAVAN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 16847 MAYER LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17681 MAYER SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20676


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MAYER 44-2 SPRABERRY (TREND AREA) MUNSON, DAVID M. INC. 14813 MAYER-215 ALLOC 06 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20457 MAYER-215 ALLOC 08 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20458 MAYER-215 ALLOC 08 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20760 MAYER-215 ALLOC 12 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20380 MAYER-215 ALLOC 12 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20805 MAYER-215 ALLOC 16 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20459 MAYER-215 ALLOC 23 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20456 MAYER, SS SAN ANGELO (CANYON SAND) BURGUNDY OIL & GAS, INC. 15882 MAYHEW C-M-R (GRAYBURG) BUSTOS, MARTIN OIL 05973 MAYHEW SUGARLOAF (GRAYBURG) EMERALD SYSTEMS, INC. 05772 MAYS TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05831 MAYSE SIXTY SEVEN (CLEAR FORK 3100) TOC ENERGY RESOURCES, LLC 11093 MAYSE 'B' CHRISTI (CANYON 6800) TOC ENERGY RESOURCES, LLC 11750 MAYSE "A" CHRISTI (CANYON 6800) OZARK EXPLORATION, INC. 11111 MAYSE "A" SIXTY SEVEN (CLEAR FORK 3100) TOC ENERGY RESOURCES, LLC 11631 MAYSE 26 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17824 MAYSE 26 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18308 MAYSE 3068 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16510 MAYSE 3068 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17826 MB NOELKE "2" MOELSON (CLEARFORK) COMPASS ENERGY OPERATING, LLC 16812 MC ELROY RANCH CO #130 WILDCAT XTO ENERGY INC. 14124 MC ELROY RANCH CO D SPRABERRY (TREND AREA) APACHE CORPORATION 18159 MC ELROY RANCH CO. 111 SPRABERRY (TREND AREA) APACHE CORPORATION 18055 MC ELROY RANCH 127 NE SPRABERRY (TREND AREA) APACHE CORPORATION 17879 MC ELROY RANCH 132 SPRABERRY (TREND AREA) APACHE CORPORATION 17876 MC ELROY 114 SE SPRABERRY (TREND AREA) APACHE CORPORATION 17757 MCADAMS BROWN SUGAR (GRAY) RICHEY, RAY MANAGEMENT CO., INC. 08871 MCALESTER-SUGG "70" ANDREW A. (CANYON) TRIPLE CROWN RESOURCES, LLC 09907 MCANGUS -107- RAMON (LEONARD) TOC ENERGY RESOURCES, LLC 08417 MCASHAN "B" SAGE (TILLERY SD.) J & J SERVICES COMPANY 09369 MCBETH CREE-SYKES (GARDNER, UPPER) WILLOWBEND INVESTMENTS, INC. 16558 MCBETH 'A' CREE-SYKES (GARDNER, UPPER) WILLOWBEND INVESTMENTS, INC. 19382 MCCAMEY UNIT MCCAMEY BJG OPERATING COMPANY 14495 MCCAMEY UNIT MCCAMEY KENNEDY, R. R. PRODUCTION, INC. 15745 MCCAMEY UNIT MCCAMEY PHARAOH OIL & GAS, INC. 16519 MCCAMMON BAKER RANCH (CANYON) FORTUNE ENERGY, INC. 18771 MCCAUGHAN JLE (ELLEN.) LAWRENCE ENERGY COMPANY 12872 MCCLATCHEY-GAUVEY VAUGHN CONSOLIDATED BONFIRE OPERATING LLC 19092 MCCLUNG, ANNA 1 DEER CANYON (PENN) WHITE ROCK OIL & GAS, LLC 15142 MCCLUNG, ANNA 1 SOUTH BRANCH (STRAWN) WHITE ROCK OIL & GAS, LLC 14402 MCCLURE NORDIC (DOG BEND) BIG D ENERGY COMPANY 10503 MCCLURE "B" NORDIC (DOG BEND) R & R WELL SERVICE, INC. 12374 MCCLURE, W. W. A/C 1 KING MOUNTAIN (DEVONIAN) COG OPERATING LLC 02511 MCCORD BERNARD (GARDNER, LOWER) BLACK GOLD EAGLE, LLC 09981 MCCORD, J. B., AGENT CREWS, SE. (CROSS CUT) CEDAR OIL COMPANY 04768 MCCORD, J.W. ELM CREEK (GARDNER UPPER) QUAIL WELL SERVICE, INC. 07811 MCCUISTION SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13072 MCCUNE, E. STATE SOUTHWEST MESA (WOLFCAMP) CUSTER & WRIGHT OPERATING, INC. 12606 MCDANIEL SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 14114 MCDANIELS "36" SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 11413


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MCDOWELL C 173-174 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19943 MCDOWELL, ELLEN SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04754 MCELROY "115" SPRABERRY (TREND AREA) APACHE CORPORATION 14718 MCELROY CO. "M" KING MOUNTAIN (DEVONIAN) XTO ENERGY INC. 16277 MCELROY RANCH SPRABERRY (TREND AREA) APACHE CORPORATION 18596 MCELROY RANCH SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 16427 MCELROY RANCH SPRABERRY (TREND AREA) XTO ENERGY INC. 18615 MCELROY RANCH WILSHIRE (ELLENBURGER) APACHE CORPORATION 02139 MCELROY RANCH WILSHIRE (PENNSYLVANIAN) APACHE CORPORATION 02146 MCELROY RANCH 'A' 135 SPRABERRY (TREND AREA) APACHE CORPORATION 18814 MCELROY RANCH "C" SPRABERRY (TREND AREA) APACHE CORPORATION 14452 MCELROY RANCH "133" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17089 MCELROY RANCH "134" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16915 MCELROY RANCH "135" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16726 MCELROY RANCH "136" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16805 MCELROY RANCH "137" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16803 MCELROY RANCH "138" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16796 MCELROY RANCH B SPRABERRY (TREND AREA) XTO ENERGY INC. 18402 MCELROY RANCH CO F SPRABERRY (TREND AREA) APACHE CORPORATION 18433 MCELROY RANCH CO 119 SPRABERRY (TREND AREA) APACHE CORPORATION 18412 MCELROY RANCH CO. SPRABERRY (TREND AREA) BREITBURN OPERATING L.P. 17175 MCELROY RANCH CO. -F- BLOCK 42 (PENN) FIREBIRD ENERGY LLC 02590 MCELROY RANCH CO. -F- BLOCK 42 (WOLFCAMP) FIREBIRD ENERGY LLC 04416 MCELROY RANCH CO. -M- KING MOUNTAIN, N. (BEND) XTO ENERGY INC. 05744 MCELROY RANCH CO. #119 WILSHIRE (ELLENBURGER) APACHE CORPORATION 02141 MCELROY RANCH CO. #129 WILSHIRE (ELLENBURGER) XTO ENERGY INC. 02136 MCELROY RANCH CO. #130 WILSHIRE (ELLENBURGER) XTO ENERGY INC. 02137 MCELROY RANCH CO. "F" SPRABERRY (TREND AREA) FIREBIRD ENERGY LLC 17293 MCELROY RANCH CO. "G" BLOCK 42 (PENN) FIREBIRD ENERGY LLC 14802 MCELROY RANCH CO. "G" MCELROY (STRAWN DETRITAL) FIREBIRD ENERGY LLC 10525 MCELROY RANCH CO. "H" SPRABERRY (TREND AREA) FIREBIRD ENERGY LLC 17236 MCELROY RANCH CO. "L" SPRABERRY (TREND AREA) CHEVRON U. S. A. INC. 17611 MCELROY RANCH CO. "M" AMACKER-TIPPETT, SW (WOLFCAMP) XTO ENERGY INC. 13191 MCELROY RANCH CO. "M" KING MOUNTAIN (STRAWN 9150) XTO ENERGY INC. 10743 MCELROY RANCH CO. "M" KING MOUNTAIN, N. (CISCO) XTO ENERGY INC. 06583 MCELROY RANCH CO. "M" KING MOUNTAIN, N.(STRAWN) XTO ENERGY INC. 07101 MCELROY RANCH CO. "M" KING MOUNTAIN, S. (8200) XTO ENERGY INC. 12085 MCELROY RANCH CO. STATE ADAMC (SILURIAN) CHEVRON U. S. A. INC. 00007 MCELROY RANCH CO. 119 WILSHIRE (CONSOLIDATED) APACHE CORPORATION 15225 MCELROY RANCH CO. 130 SPRABERRY (TREND AREA) APACHE CORPORATION 14509 MCELROY RANCH COMPANY CORVETTE (WOLFCAMP) CHEVRON U. S. A. INC. 13608 MCELROY RANCH COMPANY SPRABERRY (TREND AREA) CHEVRON U. S. A. INC. 19094 MCELROY RANCH COMPANY STATE ADAMC (BEND) CHEVRON U. S. A. INC. 03812 MCELROY RANCH COMPANY STATE "E" ADAMC (ELLENBURGER) CHEVRON U. S. A. INC. 13595 MCELROY RANCH COMPANY 121 SPRABERRY (TREND AREA) CHEVRON U. S. A. INC. 17957 MCELROY RANCH E SPRABERRY (TREND AREA) APACHE CORPORATION 18012 MCELROY RANCH G SPRABERRY (TREND AREA) XTO ENERGY INC. 19021 MCELROY RANCH 117 SPRABERRY (TREND AREA) APACHE CORPORATION 14550 MCELROY RANCH 117 WILSHIRE (CONSOLIDATED) XTO ENERGY INC. 15261 MCELROY RANCH 119-1 WILSHIRE (CONSOLIDATED) SABRE OPERATING, INC. 15499 MCELROY RANCH 129 SPRABERRY (TREND AREA) APACHE CORPORATION 14468


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MCELROY RANCH 134 SPRABERRY (TREND AREA) APACHE CORPORATION 17735 MCELROY 133 SPRABERRY (TREND AREA) APACHE CORPORATION 18435 MCELROY 137 SPRABERRY (TREND AREA) APACHE CORPORATION 18015 MCELROY 138 SPRABERRY (TREND AREA) APACHE CORPORATION 17999 MCELROY, J. T. CONS ADAMC (DEVONIAN) CHEVRON U. S. A. INC. 10801 MCELROY, J. T. CONS. ADAMC (WOLFCAMP) CHEVRON U. S. A. INC. 03676 MCGILL SPRABERRY (TREND AREA) COG OPERATING LLC 17137 MCGILL SUSAN PEAK (STRAWN, UPPER) MAYO, EDDIE 15114 MCGILL "A" SPRABERRY (TREND AREA) COG OPERATING LLC 17169 MCGILL "12" TAOS (CANYON) SIANA OIL & GAS 13716 MCGILL "44" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20716 MCGILL "44" SPRABERRY (TREND AREA) SOGGY D LLC 20431 MCGILL "44" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15931 MCGILL "44" SUGG RANCH (CANYON) SOGGY D LLC 16301 MCGILL "66" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20719 MCGILL "66" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16015 MCGILL UNIT TAOS (CANYON) REO OPERATING LLC 13727 MCGILL, A. B. TAOS (CANYON) SIANA OIL & GAS 13680 MCGILL, A. B. #1 TAOS (FUSSELMAN) SIANA OIL & GAS 08472 MCGLOTHLIN NIPPLE PEAK (ELLENBURGER) HIGHGROUND, INC. 13316 MCGLOTHLIN "A" NIPPLE PEAK (ELLENBURGER) HGN OPERATING I, LLC 14382 MCGLOTHLIN "B: NIPPLE PEAK (ELLENBURGER) HGN OPERATING I, LLC 17461 MCGOWAN - HENDERSON RANCH SPECK, SE. (KING) HORIZON EXPLORATION SERVICES 16354 MCGOWAN-HENDERSON RANCH 'A' WILDCAT HORIZON EXPLORATION SERVICES 17051 MCGOWAN-HENDERSON RANCH "A" WILDCAT HORIZON EXPLORATION SERVICES 16967 MCGREGOR "8" FORT MCKAVITT (LIME 4150) GOLDEN SPECIALTIES OIL & GAS 19502 MCGREGOR UNIT FORT MCKAVITT (LIME 4150) BOAZ ENERGY II OPERATING, LLC 19114 MCKAY CREEK "B" MCKAY CREEK (CABALLOS) WHITE ROCK OIL & GAS, LLC 08266 MCLARTY -A- BEDDO 3-D OIL & GAS 14835 MCLEAN "1207" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17345 MCMANUS SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18736 MCMASTER SPRABERRY (TREND AREA) CITATION OIL & GAS CORP. 04775 MCMASTER SPRABERRY (TREND AREA) DE3 OPERATING LLC 13967 MCMASTER SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 05148 MCMASTER -A- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 05487 MCMASTER #2 SPRABERRY (TREND AREA) CITATION OIL & GAS CORP. 12164 MCMASTER "C" SPRABERRY (TREND AREA) DE3 OPERATING LLC 11412 MCMASTER "D" SPRABERRY (TREND AREA) DE3 OPERATING LLC 11521 MCMASTER, E. L. SPRABERRY (TREND AREA) CITATION OIL & GAS CORP. 13958 MCMASTER, J. L. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14000 MCMASTER, MYRTLE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13926 MCMASTERS, MYRTLE SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 13982 MCMILLAN CREWS, SOUTH (FRY, LO.) WINDHAM RESOURCES 08744 MCMILLAN, REVA MIM. NW (SAN ANGELO) BOMAR OPERATING CO., LC 07530 MCMILLAN, REVA K. BROOKS (CANYON K) TEJAS JACK SALES, INC. 10730 MCMURTREY LONESOME DOVE II (GOEN) HELLIFINO OPERATING, LLC 13039 MCMURTREY LONESOME DOVE II (KING SAND) HELLIFINO OPERATING, LLC 12631 MCNEILL DORMAN, WEST (GOEN) GOLDEN OIL AND RANCH, LLC 14530 MCNEILL DORMAN, WEST (GOEN) GOLDEN OIL AND RANCH, LLC 14877 MCNEILL FENNELL (CAPPS) GOLDEN OIL AND RANCH, LLC 20330 MCNEILL TRITON (CANYON SAND) GOLDEN OIL AND RANCH, LLC 16980


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MEADOR BUCKHORN, N. (CANYON 6985) FRAC-SAND, INC. 05768 MEADOR CODY BELL, SW. (WOLFCAMP) SER E&P, INC. 18841 MEADOR -178- MARCHAWN (CLEAR FORK) MEADOR LAND COMPANY 08374 MEADOR -178- MARCHAWN (CLEAR FORK) UPP OPERATING, LLC 14736 MEADOR "A" VELREX (CISCO 6260) TXP, INCORPORATED 15599 MEADOR 178 SAWYER (LEONARD) UPP OPERATING, LLC 18030 MEADOR-HENGST ELDORADO (CANYON) SHOCO PRODUCTION LLC 18669 MEADOR-HENGST ET AL CODY BELL, SW. (WOLFCAMP) SHOCO PRODUCTION LLC 18887 MEADOR-HENGST, ET AL CODY BELL, SW. (WOLFCAMP) SHOCO PRODUCTION LLC 19024 MEADOR, T. C. CODY BELL, SW. (WOLFCAMP) MEADOR, T. C. 07432 MEADOR, T. C. VELREX (CANYON, UP.) MEADOR, T. C. 04246 MEADOR, T. C. VELREX (CANYON, UP.) THP OPERATING LLC 15565 MEADOR, T. C. VELREX (HENDERSON UPPER) MEADOR, T. C. 04482 MEADOWS RANCH CLARA COUCH,SOUTH (SAN ANDRES) SED ENERGY INC. 16882 MEADOWS RANCH CRESSON (SAN ANDRES) SED ENERGY INC. 16035 MEADOWS RANCH CRESSON (SAN ANDRES) TULAROSA OPERATING COMPANY 13858 MEADOWS 1 OZONA, NE. (CANYON SAND) EPIC PERMIAN OPERATING, LLC 15595 MEADOWS, C. W. OZONA, NW. (SPRABERRY) HENDERSON & ERICKSON, INC. 13885 MEADOWS, HENRY E. OZONA, NW. (SPRABERRY) MAYJAC I, LLC 04618 MEINER SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 11336 MEINER SPRABERRY (TREND AREA) XTO ENERGY INC. 08212 MEINER "A" SPRABERRY (TREND AREA) XTO ENERGY INC. 08890 MEINER "B' SPRABERRY (TREND AREA) XTO ENERGY INC. 16657 MEINERS SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 10153 MEINERS SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12426 MEINERS -F- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19319 MEINERS "B" SPRABERRY (TREND AREA) DE3 OPERATING LLC 12473 MEINERS "C" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12593 MEINERS "D" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12792 MEINERS "E" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13070 MEINERS F SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10745 MEINERS, E.W. 31 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10596 MELINDA SPRABERRY (TREND AREA) HENRY RESOURCES LLC 17295 MELISSA FENNELL (CAPPS) GAEDEKE OIL & GAS OPERATING, LLC 15059 MELISSA FENNELL (GOEN) GAEDEKE OIL & GAS OPERATING, LLC 14429 MENDOZA LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18810 MENDOZA SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20587 MENIELLE, L.B. I. A. B. (STRAWN) FDL OPERATING, LLC 13876 MENZIES WILHELM LANE (GOEN) CONCHO OILFIELD SERV & OPER CO. 17294 MENZIES 2 WILHELM LANE (CANYON 3100) CONCHO OILFIELD SERV & OPER CO. 17483 MENZIES, A. WILHELM LANE (GOEN) CONCHO OILFIELD SERV & OPER CO. 12983 MENZIES, ALEX WILHELM LANE (CANYON) CONCHO OILFIELD SERV & OPER CO. 15357 MENZIES, ALEX WILHELM LANE (HOPE LIME) CONCHO OILFIELD SERV & OPER CO. 13022 MERCHANT SPRABERRY (TREND AREA) LARIO OIL & GAS COMPANY 05745 MERCHANT SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 18787 MERCHANT -10- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14025 MERCHANT -11- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14018 MERCHANT -14- SPRABERRY (TREND AREA) BRP ENERGY, LLC 14020 MERCHANT ESTATE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14168 MERCHANT ESTATE -13- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04755 MERCHANT ESTATE -14- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04756


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MERCHANT ESTATE -14- SPRABERRY (TREND AREA) ENVIRONMENTAL DSPL SYSTEMS, LLC 20991 MERCHANT ESTATE -17- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04673 MERCHANT ESTATE 16 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04697 MERCHANT UNIT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04426 MERCHANT, C. W. SPRABERRY (TREND AREA) BRP ENERGY, LLC 14021 MERCHANT, C. W. -A- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14127 MERCHANT, C. W. -B- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14126 MERCHANT, C. W. -C- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14129 MERCHANT, C. W. -D- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14138 MEREDITH SPRABERRY (TREND AREA) COG OPERATING LLC 15602 MERFELD, VICTOR J. WINTERS (CAPPS) HORIZON WELL SERVICES, INC. 13182 MERTZ OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 17924 MERTZ T BONE (WOLFCAMP) PATTON, E. N. OIL COMPANY, INC. 15165 MERTZ (P) 2-12 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10052 MERTZ (P) 4-12 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10090 MESA CASTLE GAP (SAN ANDRES) BUSTAMANTE RESOURCES LLC 11149 MESA-UNIVERSITY FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 07771 MESA-UNIVERSITY "46-5" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 09556 MESA-UNIVERSITY "46-6" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 09557 METROPOLITAN ROYALTY CORPORATION SOUTHWEST MESA (WOLFCAMP) CUSTER & WRIGHT OPERATING, INC. 12732 MEYER SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08827 MEYER 11 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 11297 MIDDLE CONCHO '1904' SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 17968 MIDDLE CONCHO "1904" WILDCAT COMPASS ENERGY OPERATING, LLC 17915 MIDKIFF SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12385 MIDKIFF SPRABERRY (TREND AREA) RAINS ENERGY, LLC 16328 MIDKIFF "K" SPRABERRY (TREND AREA) XTO ENERGY INC. 12987 MIDKIFF BRINE SPRABERRY (TREND AREA) TALL CITY BRINE LLC 20132 MIDKIFF 11 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19640 MIDWAY LANE 1100 UNIT MIDWAY LANE (PERMIAN) MOMENTUM ENERGY CORPORATION 05579 MIDWAY SWD SPRABERRY (TREND AREA) PROBITY SWD, LLC 18701 MIGEL SPRABERRY (TREND AREA) APACHE CORPORATION 14277 MIKE SCOTT 19-30-H SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20229 MIKESKA BAYS (FRY SAND) CEDAR OIL COMPANY 09464 MIKESKA FRITZESS (GARDNER SAND) 3-D OIL & GAS 16355 MIKESKA SPECK, NORTH (STRAWN) MIKESKA STOCK FARM 19278 MIKESKA WINGATE N.W. (CAPPS) BRAZOS PETROLEUM, INC. 12251 MIKESKA WINGATE N.W. (CAPPS) 3-D OIL & GAS 20397 MIKESKA WINGATE, NW (GRAY) TEXXOL OPERATING COMPANY, INC. 08628 MIKESKA WINGATE, WEST (GRAY) TRIANGLE P DEVELOPMENT CORP. 12198 MIKESKA WINGATE, WEST (GRAY) 3-D OIL & GAS 12306 MIKESKA, B. BAYS (FRY SAND) CEDAR OIL COMPANY 09997 MIKESKA, B. WINGATE, WEST (GARDNER) CEDAR OIL COMPANY 11884 MIKESKA, B. J. SPECK, NORTH (STRAWN) J & J SERVICES COMPANY 08293 MILDRED 34 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19212 MILDRED 34 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18583 MILLAR COW KILLER (GOEN) CONCHO OILFIELD SERV & OPER CO. 15606 MILLER PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 10432 MILLER REFOIL (3200 SAND) SUNSET LEASES LLC 04125 MILLER SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 05323 MILLER -B- SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 05410


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MILLER -226- PRICE (GRAYBURG) RECOVERY OPERATING LP 08516 MILLER "7" REFOIL (3200 SAND) EPIC PERMIAN OPERATING, LLC 13123 MILLER REFOIL REFOIL (3200 SAND) EPIC PERMIAN OPERATING, LLC 12181 MILLER 1242 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18599 MILLER 1242 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20588 MILLER 1244 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18706 MILLER 1244 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20594 MILLER 36 SPRABERRY (TREND AREA) APACHE CORPORATION 18419 MILLER 37 WEST A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19969 MILLER 37 WEST B SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19970 MILLER 37 WEST C SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 20000 MILLER 3748 A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19869 MILLER 3748 B SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19880 MILLER 3748 C SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19888 MILLER 3748 D SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19885 MILLER-MILNER UNIT SPRABERRY (TREND AREA) WALSH & WATTS, INC. 12338 MILLER, ROY REFOIL (3200 SAND) HENRY PETROLEUM LLC 03621 MILLER, ROY -B- REFOIL (CLEAR FORK 2850) HENRY PETROLEUM LLC 03687 MILLER, ROY -C- REFOIL (3200 SAND) HENRY PETROLEUM LLC 03782 MILLER, ROY -D- REFOIL (3200 SAND) HENRY PETROLEUM LLC 04001 MILLER, ROY 3 REFOIL (3200 SAND) WILSON SYSTEMS, INC. 14755 MILLER, ROY, -BB- REFOIL (3200 SAND) HENRY PETROLEUM LLC 03781 MILLICAN REEF UNIT MILLICAN ABRAXAS PETROLEUM CORPORATION 10733 MILLICAN, D. M. JAMESON, SE. (STRAWN) FDL OPERATING, LLC 05155 MILLICAN,D.M.-A- JAMESON, SE. (STRAWN) FDL OPERATING, LLC 08810 MILLIFF BALLINGER (PALO PINTO) BRIGHTRIVER ENERGY CO 18329 MILLIFF BALLINGER, WEST (JENNINGS) BRIGHTRIVER ENERGY CO 18022 MILLS 11 KING MOUNTAIN, S. (ATOKA) PARSLEY ENERGY OPERATIONS, LLC 18215 MILLS 11 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18601 MILLSPAUGH, AUSTIN "12C" OZONA (SPRABERRY) EPIC PERMIAN OPERATING, LLC 13788 MILLSPAUGH, AUSTIN "32A" OZONA (SPRABERRY) EPIC PERMIAN OPERATING, LLC 15370 MIM NORTH MIM (SAN ANGELO) TEJAS JACK SALES, INC. 06544 MIM SOUTH MIM (SAN ANGELO) TEJAS JACK SALES, INC. 03292 MIMS HANEY (STRAWN) DOVE CREEK ENERGY, INC. 18407 MINZENMAYER WINTERS, NORTH (GARDNER SAND) HARDROCK RESOURCES INC. 15109 MINZENMAYER-ANDERSON UNIT DORMAN, WEST (JENNINGS) HARDROCK RESOURCES INC. 19062 MINZENMAYER, GILBERT DORMAN, WEST (GOEN) HARDROCK RESOURCES INC. 17358 MINZENMEYER, GILBERT "A" DORMAN, WEST (GOEN) KAISER-FRANCIS OIL COMPANY 07121 MISS ELA MISS ELA (CANYON) BASA RESOURCES, INC. 06584 MITCHELL LITTLE MESA (WOLFCAMP) WHITE ROCK OIL & GAS, LLC 18748 MITCHELL SPRABERRY (TREND AREA) APACHE CORPORATION 06888 MITCHELL SPRABERRY (TREND AREA) APACHE CORPORATION 09670 MITCHELL "K" SUEISE (FRY SAND) ANDERSON, JAMES K. INC. 15801 MITTEL HULLDALE, WEST (HARKEY) HULLDALE SWITCH DISPOSAL, LLC 09878 MITTEL 63 HOLT RANCH (CONSOLIDATED) BVX OPERATING, INC. 18616 MITTEL, CHRISTENA 3A NEVA, WEST (CANYON) ATLAS OPERATING LLC 03152 MIZE C 145-146 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20893 MIZE C 145-146 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20872 MIZE C 145-146 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20867 MIZE C 145-146 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20868 MIZE C 145-146 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20895


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MIZE C 145-146 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20896 MIZE C 145-146 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20897 MIZE-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17226 MIZE-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18926 MOBIL ROCK PEN (CANYON) J2 PETROLEUM LLC 08675 MOBIL-CARR SPRABERRY (TREND AREA) V-F PETROLEUM INC. 04893 MOBIL-COOK HELUMA (ELLENBURGER) LEGACY RESERVES OPERATING LP 06197 MOBIL-COOK HELUMA (WOLFCAMP) LEGACY RESERVES OPERATING LP 13411 MOBIL-COOK HELUMA, EAST (DEVONIAN) LEGACY RESERVES OPERATING LP 06330 MOBIL-NEAL "B" BENEDUM (FUSSELMAN) SABLE PERMIAN RESOURCES, LLC 10167 MOBIL-NEAL "D" BENEDUM (FUSSELMAN) SABLE PERMIAN RESOURCES, LLC 10479 MOBIL-NEAL "34" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 07467 MOBIL-NEAL 12 BENEDUM (FUSSELMAN) DE3 OPERATING LLC 08444 MOBIL-TXL SPRABERRY (TREND AREA) DE3 OPERATING LLC 11018 MOCHA UNIT MOTLEY, NORTH (PALO PINTO) WINDOW OPERATING CO., THE 18958 MODELL OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 18401 MOELLER ROWENA (CAPPS, LOWER) J V A OPERATING COMPANY, INC. 18327 MOELLER ROWENA (JENNINGS) J V A OPERATING COMPANY, INC. 18001 MOLLY 39 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18753 MOLONEY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16841 MONIQUE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18339 MONK BAKER RANCH (CANYON) FORTUNE ENERGY, INC. 18383 MONTE SPRABERRY (TREND AREA) COG OPERATING LLC 15969 MONTGOMERY "E" OZONA (CLEAR FORK, UPPER) BEDROCK PRODUCTION, LLC 17052 MONTGOMERY D OZONA (CLEAR FORK) BONFIRE OPERATING LLC 19393 MONTGOMERY, C.C. '6D' OZONA (CLEAR FORK) TOC ENERGY RESOURCES, LLC 15339 MONTGOMERY, C.C. ESTATE OZONA (CANYON SAND, OIL) BAKER RESOURCES 08790 MONTGOMERY, C.C. 12C OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 15406 MONTGOMERY, W. C. OZONA (CANYON SAND, OIL) EPIC PERMIAN OPERATING, LLC 13791 MONTGOMERY, W. C. OZONA, NW. (CANYON) EPIC PERMIAN OPERATING, LLC 07420 MONTGOMERY, W. C. REFOIL (3200 SAND) FAIR OPERATING, INC. 12258 MONTGOMERY, W.C. OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 15395 MOORE ET AL VENADO, SOUTH (WOLFCAMP) FISHER OIL CO. 07368 MOORE WEST SWD BUCKHORN (ELLENBURGER) BOB HUGHES OIL COMPANY, LLC 19285 MOORE 13 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18325 MOORE 29 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 17888 MOORE-BIG STATE HOOVER HOOVER PETROLEUM COMPANY, LLC 11411 MOORE, C. R. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14075 MOORE, ETAL, FEE NO. 1 SHANNON (SAN ANDRES) CLARK OIL CO. 01268 MOORE, KAY WILDCAT SMITH PIPE OF ABILENE 14494 MOORE, PAUL BYRD (STRAWN) LILLIS, MICHAEL D. 07566 MORDOR 31 SPRABERRY (TREND AREA) CROWNQUEST OPERATING, LLC 19933 MORGAN SPRABERRY (TREND AREA) COG OPERATING LLC 16283 MORGAN SPRABERRY (TREND AREA) DE3 OPERATING LLC 07412 MORGAN SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18550 MORGAN '25-26' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19573 MORGAN "A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 07801 MORGAN "28" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17332 MORGAN "28A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17445 MORGAN A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18545 MORGAN A 25-26A-A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20030


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MORGAN A 25-26A-C SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20914 MORGAN B SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18752 MORGAN C SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17868 MORGAN 24 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19639 MORGAN 25 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18916 MORGAN 25-26 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19108 MORGAN 25-26B-E SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20814 MORGAN 25-26B-F SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20298 MORGAN 26 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18962 MORGAN 26 A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18553 MORGAN 27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18866 MORGAN 33 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18908 MORGAN, W.R. ET AL SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06662 MOSLEY, EULA BALLINGER (PALO PINTO, N.) OIL, GAS, ETC. LLC 07501 MOTL HARRIETT C&J ENERGY SERVICES 10284 MOUNDS 95-2 CASTLE GAP (SAN ANDRES) CRI OPERATING LLC 20011 MOZELLE NUTT MOZELLE NUTT (STRAWN 3650) DAMRON ENERGY, LLC 07435 MULHOLLAND PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 10308 MUNN JAMESON PIMA ENERGY, LLC 06976 MUNN JAMESON (STRAWN) PIMA ENERGY, LLC 08431 MUNN JAMESON (STRAWN) PIMA ENERGY, LLC 15145 MUNN MUNN-WESTEX (CANYON) THP OPERATING LLC 13297 MUNN T. D. (6575) BOB HUGHES OIL COMPANY, LLC 11045 MUNN-A JAMESON (STRAWN) PIMA ENERGY, LLC 06742 MUNN-B "1125" T. D. (6575) TXP, INCORPORATED 10424 MUNRO "16" WAYNE-HARRIS (WOLFCAMP) PIONEER NATURAL RES. USA, INC. 16178 MUNSON LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17584 MUNSON SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 06875 MUNSON 'A' LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18386 MUNSON "GULF" SPRABERRY (TREND AREA) MUNSON OPERATING, INC. 10293 MUNSON "17" LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 16952 MUNSON B LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18398 MUNSON C LIN (WOLFCAMP) FORELAND OPERATING, LLC 19362 MUNSON RANCH SPRABERRY (TREND AREA) NUECES MINERALS COMPANY 09211 MUNSON RANCH 4007 SUGG (CLEAR FORK) MUNSON OPERATING, INC. 14732 MUNSON 14-3 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14413 MUNSON 14-4 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14477 MUNSON 15-4 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14372 MUNSON 15-6 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14406 MUNSON 1507 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14404 MUNSON 17-1 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14771 MUNSON 22-2 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14481 MUNSON 22-3 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14729 MUNSON 23-1 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14489 MUNSON 23-2 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14506 MUNSON 23-4 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14533 MUNSON 25-1 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14572 MUNSON 25-2 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14592 MUNSON 34-2 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14504 MUNSON 34-3 LAVAN (WOLFCAMP) MUNSON, DAVID M. INC. 14517 MURIEL PEGASUS (CONSOLIDATED) COG OPERATING LLC 17146


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ MURPHEY BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11312 MURPHEY BAKER RANCH (CANYON) J & J WELL SERVICE, INC. 11517 MURPHEY SPRABERRY (TREND AREA) BASA RESOURCES, INC. 07124 MURPHEY "1149" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11307 MURPHEY "1221" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11313 MURPHEY "3" BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 11308 MURPHEY "52" SPRABERRY (TREND AREA) QUATRO OIL AND GAS, INC. 11764 MURPHEY A SPRABERRY (TREND AREA) SMITH PIPE OF ABILENE 07003 MURPHEY B SPRABERRY (TREND AREA) SMITH PIPE OF ABILENE 07433 MURPHEY WEST SWD FARMER (SAN ANDRES) PILOT WATER SOLUTIONS SWD LLC 20043 MURPHEY, ELTA B BAKER RANCH (CANYON) ATROPOS EXPLORATION COMPANY 17270 MURPHEY, ELTA T. BARNHART (GRAYBURG) MCIVER, INC 10044 MURPHEY, ELTA T. SPRABERRY (TREND AREA) MCIVER, INC 05415 MURPHEY, ELTA T. SPRABERRY (TREND AREA) MCIVER, INC 06216 MURPHEY, ELTA T. "A" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 05508 MURPHEY, ELTA, MRS. PETERSON (SAN ANDRES) DLB OIL & GAS INC. 01194 MURPHY CODY BELL (CANYON) OXY USA INC. 15474 MURPHY DOW-MAYER (SPRABERRY DEAN) TRACKER RESOURCE DEV III, LLC 06164 MURPHY -A- DOW-MAYER (SPRABERRY DEAN) ZACHRY OIL AND GAS PROPERTIES 06268 MURPHY -B- DOW-MAYER (SPRABERRY DEAN) ZACHRY OIL AND GAS PROPERTIES 07915 MURPHY "7" MERTZON (CANYON) ATROPOS EXPLORATION COMPANY 07089 MURPHY, A. M. CODY BELL, SW. (WOLFCAMP) MEADOR, T. C. 09740 MURPHY, ELTA SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 06680 MURR WILHELM LANE, W. (STRAWN, UPPER) CFO RESOURCES, INC. 15426 MURRAY DARK HORSE (GOEN LIME) SMITH, JOE T., INC. 13388 MUSTANG DRAW SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 16520 MWJ ROCKER -B- SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 04666 MYERS BENEDUM (FUSSELMAN) FASKEN OIL AND RANCH, LTD. 10667 MYERS SPRABERRY (TREND AREA) HENRY RESOURCES LLC 19402 MYERS SPRABERRY (TREND AREA) MID-STATES OPERATING COMPANY 09427 N WILDE OIL UNIT SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17843 N. E., I. A. B. UNIT I. A. B., NE. (PENN. 5150) GTG OPERATING, LLC 04864 NACHLINGER, MARY SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13974 NADA SPRABERRY (TREND AREA) COG OPERATING LLC 16838 NALLEY SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14169 NALLEY, COY D. "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13931 NANCY PAUL THOMAS (GOEN) GOLDEN OIL AND RANCH, LLC 17085 NANCY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16756 NATALIE FENNELL (GOEN) 3-D OIL & GAS 18073 NATALIE 26 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19722 NEAL KIM (HARKEY) CAPITOL WELL SERVICING CO., INC. 16651 NEAL SPRABERRY (TREND AREA) COG OPERATING LLC 17478 NEAL SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 17203 NEAL SPRABERRY (TREND AREA) XTO ENERGY INC. 08859 NEAL WEGER (SAN ANDRES) RUSSELL OPERATING COMPANY, LLC 12359 NEAL WEGER, NORTH RUSSELL OPERATING COMPANY, LLC 05527 NEAL - FLUOR BENEDUM (SPRABERRY) ARENA PRODUCTION COMPANY 06230 NEAL -30A- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12265 NEAL -36- BENEDUM (FUSSELMAN) SABLE PERMIAN RESOURCES, LLC 08719 NEAL '39A' SPRABERRY (TREND AREA) OVINTIV USA INC. 16755 NEAL '39B' SPRABERRY (TREND AREA) OVINTIV USA INC. 17976


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ NEAL '40-38B' SPRABERRY (TREND AREA) OVINTIV USA INC. 18334 NEAL "A" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 11227 NEAL "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13459 NEAL "B" BENEDUM (FUSSELMAN) APACHE CORPORATION 07664 NEAL "B" BENEDUM (FUSSELMAN) ENDEAVOR ENERGY RESOURCES L.P. 09098 NEAL "C" NEAL RANCH PIONEER NATURAL RES. USA, INC. 08369 NEAL "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09220 NEAL "D" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12643 NEAL "E" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12644 NEAL "F" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12620 NEAL "G" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12773 NEAL "H" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12780 NEAL "14" A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 11155 NEAL "18-A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12830 NEAL "18B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12997 NEAL "20-B" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09563 NEAL "20-E" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12376 NEAL "20" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09092 NEAL "22" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 10726 NEAL "26" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04071 NEAL "28" SPRABERRY (TREND AREA) PETROPLEX SWD SYSTEM, LLC 09138 NEAL "30-B" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09793 NEAL "30-D" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 10257 NEAL "30-E" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12277 NEAL "30" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15630 NEAL "30" SPRABERRY (TREND AREA) OVINTIV USA INC. 09299 NEAL "39" SPRABERRY (TREND AREA) OVINTIV USA INC. 09325 NEAL "40-38" SPRABERRY (TREND AREA) OVINTIV USA INC. 09469 NEAL "8" SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 15800 NEAL "98-B" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17338 NEAL A UNIT 8 SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18146 NEAL B UNIT 8 SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18214 NEAL C UNIT 8 SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18317 NEAL D UNIT 8 SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18426 NEAL E UNIT 8 SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18509 NEAL ESTATE 14 "B" BENEDUM (FUSSELMAN) SABLE PERMIAN RESOURCES, LLC 08548 NEAL F UNIT 8 SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 18510 NEAL HEIRS SPRABERRY (TREND AREA) DE3 OPERATING LLC 06684 NEAL RANCH '38' B UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18977 NEAL RANCH '44' B UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18865 NEAL RANCH '47' UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19154 NEAL RANCH '56' UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19030 NEAL RANCH '57' UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18818 NEAL RANCH '77' A UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18854 NEAL RANCH '77' AB UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 18974 NEAL RANCH "SWD" SPRABERRY (TREND AREA) COG OPERATING LLC 16457 NEAL RANCH "37" SPRABERRY (TREND AREA) COG OPERATING LLC 16717 NEAL RANCH "37" A SPRABERRY (TREND AREA) COG OPERATING LLC 17410 NEAL RANCH "38" SPRABERRY (TREND AREA) COG OPERATING LLC 17182 NEAL RANCH "38" A SPRABERRY (TREND AREA) COG OPERATING LLC 17423 NEAL RANCH "38" B SPRABERRY (TREND AREA) COG OPERATING LLC 17369


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ NEAL RANCH "38" C SPRABERRY (TREND AREA) COG OPERATING LLC 17312 NEAL RANCH "41" SPRABERRY (TREND AREA) COG OPERATING LLC 17266 NEAL RANCH "42" SPRABERRY (TREND AREA) COG OPERATING LLC 17388 NEAL RANCH "42" A SPRABERRY (TREND AREA) COG OPERATING LLC 17227 NEAL RANCH "44" SPRABERRY (TREND AREA) APACHE CORPORATION 14703 NEAL RANCH "44" SPRABERRY (TREND AREA) COG OPERATING LLC 17623 NEAL RANCH "44" A SPRABERRY (TREND AREA) COG OPERATING LLC 17436 NEAL RANCH "44" B SPRABERRY (TREND AREA) COG OPERATING LLC 17243 NEAL RANCH "45" SPRABERRY (TREND AREA) COG OPERATING LLC 17515 NEAL RANCH "45" A SPRABERRY (TREND AREA) COG OPERATING LLC 17561 NEAL RANCH "46" B SPRABERRY (TREND AREA) COG OPERATING LLC 17519 NEAL RANCH "46" C SPRABERRY (TREND AREA) COG OPERATING LLC 17229 NEAL RANCH "47" SPRABERRY (TREND AREA) COG OPERATING LLC 17275 NEAL RANCH "56" SPRABERRY (TREND AREA) APACHE CORPORATION 14682 NEAL RANCH "56" SPRABERRY (TREND AREA) COG OPERATING LLC 16698 NEAL RANCH "56" A SPRABERRY (TREND AREA) COG OPERATING LLC 17282 NEAL RANCH "57" SPRABERRY (TREND AREA) COG OPERATING LLC 15838 NEAL RANCH "76" A SPRABERRY (TREND AREA) COG OPERATING LLC 17367 NEAL RANCH "77" SPRABERRY (TREND AREA) COG OPERATING LLC 16506 NEAL RANCH "77" A SPRABERRY (TREND AREA) COG OPERATING LLC 17274 NEAL RANCH "96" SPRABERRY (TREND AREA) COG OPERATING LLC 17337 NEAL RANCH "96" C SPRABERRY (TREND AREA) COG OPERATING LLC 17184 NEAL RANCH "97" SPRABERRY (TREND AREA) COG OPERATING LLC 17230 NEAL RANCH "97" A SPRABERRY (TREND AREA) COG OPERATING LLC 17368 NEAL RANCH 38 C UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19821 NEAL RANCH 42 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19366 NEAL RANCH 42B UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19696 NEAL RANCH 57 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19981 NEAL 14 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18645 NEAL 14 "B" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 11209 NEAL 14A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18588 NEAL 16 "A" SPRABERRY (TREND AREA) HUNT OIL COMPANY 13693 NEAL 18 "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13068 NEAL 18 "D" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13069 NEAL 20 "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09953 NEAL 24 "A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 11239 NEAL 24 "B" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 11251 NEAL 34 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 07802 NEAL 38 SPRABERRY (TREND AREA) APACHE CORPORATION 17543 NEAL 39A SPRABERRY (TREND AREA) OVINTIV USA INC. 20469 NEAL 39B SPRABERRY (TREND AREA) OVINTIV USA INC. 20915 NEAL 39C SPRABERRY (TREND AREA) OVINTIV USA INC. 20913 NEAL 45 SPRABERRY (TREND AREA) R 40 EXC OVINTIV USA INC. 19013 NEAL 46 A SPRABERRY (TREND AREA) R 40 EXC OVINTIV USA INC. 18796 NEAL 46 B SPRABERRY (TREND AREA) OVINTIV USA INC. 18495 NEAL 46B SPRABERRY (TREND AREA) R 40 EXC OVINTIV USA INC. 19043 NEAL 98A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16871 NEAL-FLUOR BENEDUM (FUSSELMAN) ARENA PRODUCTION COMPANY 15501 NEAL-ZENO SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19989 NEAL, AMERADA "E" BENEDUM (DEVONIAN, GAS) SABLE PERMIAN RESOURCES, LLC 14629 NEAL, H. F. SPRABERRY (TREND AREA) HENRY RESOURCES LLC 11682


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ NEAL, H. F. SPRABERRY (TREND AREA) HENRY RESOURCES LLC 16058 NEAL, H. F. SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 14952 NEAL, H. F. SPRABERRY (TREND AREA CL. FK.) WHITE'S INDUSTRIAL ENGINE'S 02993 NEAL, H. F. -15- SPRABERRY (TREND AREA) HUNT OIL COMPANY 04463 NEAL, H. F. -26- SPRABERRY (TREND AREA) HUNT OIL COMPANY 03977 NEAL, H. F. "A" SPRABERRY (TREND AREA) HENRY RESOURCES LLC 11921 NEAL, H. F. "C" BENEDUM (DEVONIAN, GAS) APACHE CORPORATION 15223 NEAL, H. F. "C" BENEDUM (FUSSELMAN) APACHE CORPORATION 12457 NEAL, H. F. "C" SPRABERRY (TREND AREA) APACHE CORPORATION 14659 NEAL, H. F. "16" SPRABERRY (TREND AREA) HUNT OIL COMPANY 12382 NEAL, H. F. "25" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12811 NEAL, H. F., -28- SPRABERRY (TREND AREA) HUNT OIL COMPANY 04456 NEAL, HF "B" SPRABERRY (TREND AREA) HENRY RESOURCES LLC 16496 NEAL, MAGGIE "A" WEGER, NORTH RUSSELL OPERATING COMPANY, LLC 10932 NEAL, MAGGIE "B" WEGER, NORTH RUSSELL OPERATING COMPANY, LLC 08159 NEAL, MAGGIE S. MAGGIE NEAL (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 00834 NEAL, MAGGIE, ETAL WEGER (SAN ANDRES) RUSSELL OPERATING COMPANY, LLC 02312 NEEL, WINNIE NEEL (DETRITAL) CHALLENGER OIL INC 10023 NEELY, VERA B. SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13963 NEFF SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08964 NELSON CREWS, SOUTH (GARDNER, UP.) SCOUT ENERGY MANAGEMENT LLC 17570 NEMO-PENDULUM FENNELL (KING SAND) WILLISTON EXPLORATION SERV, LLC 16809 NEVA WEST /STRAWN/ UNIT NEVA, WEST (STRAWN) ATLAS OPERATING LLC 05094 NEVINS GARDNER UNIT NEVINS (GARDNER) BRIDWELL OIL CO. 05820 NEWMONT -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01532 NEWMONT -35- SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 02553 NEWMONT -36- SPRABERRY (TREND AREA) CRONE OIL COMPANY 02524 NEWMONT AA SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11938 NEWMONT OIL CO. -C- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 01531 NICHOLS J. NICHOLS (COOK SAND) CONCHO OILFIELD SERV & OPER CO. 13380 NICHOLS/HURST UNIT J. NICHOLS (KING SAND) CONCHO OILFIELD SERV & OPER CO. 15113 NICHOLS, J. J. NICHOLS (KING SAND) CONCHO OILFIELD SERV & OPER CO. 14548 NICHOLS, JOHN JACOBY (FRY) CONCHO OILFIELD SERV & OPER CO. 15259 NIEHEUS UNIT STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 16273 NIEHUES STAR LIGHT (BRECKENRIDGE) STAR PRODUCTION, INC. 16372 NIEHUES UNIT "A" STAR LIGHT (BRECKENRIDGE) STAR PRODUCTION, INC. 16699 NIGHT FLIGHT 4738 A SPRABERRY (TREND AREA) APACHE CORPORATION 21025 NIGHT FLIGHT 4738 B SPRABERRY (TREND AREA) APACHE CORPORATION 21026 NIGHT FLIGHT 4738 D SPRABERRY (TREND AREA) APACHE CORPORATION 20978 NIGHT FLIGHT 4738 E SPRABERRY (TREND AREA) APACHE CORPORATION 20984 NIGHT FLIGHT 4738 F SPRABERRY (TREND AREA) APACHE CORPORATION 20986 NIKOLAUK SAWYER (LEONARD) UPP OPERATING, LLC 18250 NINI LUCKY MAG (CONSOLIDATED) SAFEMARK OIL & GAS, LLC 17010 NITRAM-POPE PAINT ROCK, W. (GOEN D) J & J SERVICES COMPANY 15353 NITSCH, C. ESTATE SPIKE (GARDNER) SELLERS LEASE SERVICE, INC. 12903 NITSCH, C. ESTATE SPIKE (GARDNER SAND, LOWER) SELLERS LEASE SERVICE, INC. 08433 NIXON 177 SAWYER (LEONARD) UPP OPERATING, LLC 18032 NOEL SPRABERRY (TREND AREA) DE3 OPERATING LLC 07494 NOELKE BRANCH, EAST (LEONARD, LOWER) IRION CORPORATION, THE 11800 NOELKE CARPENTER, NW (WOLFCAMP) CUSTER & WRIGHT OPERATING, INC. 13243 NOELKE CLARA COUCH (CISCO) BEACH EXPLORATION, INC. 12419


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ NOELKE LAVAN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 16846 NOELKE LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19075 NOELKE MILESTONE (ELLENBURGER) MUNSON, DAVID M. INC. 11645 NOELKE NOELKE SCHNEIDER OIL AND GAS 05859 NOELKE -A- CLARA COUCH (CISCO) BEACH EXPLORATION, INC. 07112 NOELKE -A- NOELKE BUSTOS, MARTIN OIL 01066 NOELKE -J- NOELKE BUSTOS, MARTIN OIL 01068 NOELKE "A" SHEFFIELD, SE (DEVONIAN) URBAN OIL & GAS GROUP, LLC 15269 NOELKE "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12118 NOELKE "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12162 NOELKE "D" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12279 NOELKE "11" BENEDUM (SPRABERRY) ENDEAVOR ENERGY RESOURCES L.P. 10959 NOELKE "14" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20728 NOELKE "14" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16406 NOELKE "2" SHEFFIELD, SE (DEVONIAN) URBAN OIL & GAS GROUP, LLC 15322 NOELKE "20" OLSON ASPEN OPERATING COMPANY, L.L.C. 14608 NOELKE "28" LUCKY MAG (CONSOLIDATED) TXP, INCORPORATED 17032 NOELKE "28W" LUCKY MAG (CONSOLIDATED) TXP, INCORPORATED 17031 NOELKE "3" SHEFFIELD, SE (DEVONIAN) URBAN OIL & GAS GROUP, LLC 15759 NOELKE "8" BENEDUM (SPRABERRY) ENDEAVOR ENERGY RESOURCES L.P. 10986 NOELKE A LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18130 NOELKE B LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19930 NOELKE 5 SHEFFIELD, S.E. (STRAWN) URBAN OIL & GAS GROUP, LLC 16249 NOELKE/SUGG UNIT NO.1 LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 16378 NOELKE, B CLARA COUCH (CISCO) BEACH EXPLORATION, INC. 11707 NOELKE, M. B. MERTZON (WOLFCAMP) HANKAMER, CURTIS CORPORATION,THE 05184 NOELKE, W. M. EST. MERTZON (CANYON) SCOUT ENERGY MANAGEMENT LLC 05544 NOELKE, W. M. EST. MERTZON (SAN ANGELO) SCOUT ENERGY MANAGEMENT LLC 02410 NOELKE, W. M. ESTATE BAKER RANCH (CANYON) IRION CORPORATION, THE 11380 NOELKE, W. M. ESTATE IRION, W. (CANYON) TOC ENERGY RESOURCES, LLC 14959 NOELKE, W. M., -C- SIXTY SEVEN (STRAWN REEF) SCOUT ENERGY MANAGEMENT LLC 01295 NOELKE, W. M., EST. SIXTY-SEVEN (CANYON) SCOUT ENERGY MANAGEMENT LLC 05064 NORDIC "A" SPRABERRY (TREND AREA) BUSTAMANTE OIL COMPANY 11338 NORDIC "B" SPRABERRY (TREND AREA) BUSTAMANTE OIL COMPANY 11562 NORDIC BK SPRABERRY (TREND AREA) BUSTAMANTE OIL COMPANY 11563 NORMA SPRABERRY (TREND AREA) COG OPERATING LLC 15601 NORMA P1 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19478 NORMA UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19263 NORMAN, LILLIE MAE MATTIE BELLE (PALO PINTO) MINGUS OIL & GAS 09279 NORMAN, TERRY NICK OF TIME (HOPE) OTEX LLC 15403 NORTH BIG LAKE BRINE PRICE (GRAYBURG) TALL CITY BRINE LLC 20203 NORTH BROOK NE34 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20122 NORTH BROOK NE45S SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20084 NORTH BROOK NE45T SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20089 NORTH BROOK NE45U SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20116 NORTH BROOK 38-26 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20010 NORTH BROOK 38-35 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20029 NORTH CREEK SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20625 NORTH CREEK A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18046 NORTH CREEK B SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17677 NORTH CREEK B AL01 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20954


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ NORTH CREEK B AL02 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 20953 NORTH MERTZON SAN ANGELO UNIT MERTZON (SAN ANGELO) FRONT STREET OPERATING, LLC 05109 NORTH PEMBROOK SPRABERRY UNIT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 03913 NORTH SEAN 29 PINK DRAW (FUSSELMAN) BYRD OPERATING COMPANY 17522 NORTH STILES SPRABERRY UNIT SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 06393 NORTH SUSAN PEAK UNIT SUSAN PEAK, NORTH (CANYON) BUSTAMANTE RESOURCES LLC 13648 NORTON SPRABERRY (TREND AREA) CAMBRIAN MANAGEMENT, LTD. 15889 NUECES SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 17130 NUNN SPRABERRY (TREND AREA) BRP ENERGY, LLC 14026 NUNN SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14206 NUNN SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12761 NUNN -C- SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 13976 NUNN -D- SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 06515 NUNN '5-44' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20020 NUNN "A" SPRABERRY (TREND AREA) BRP ENERGY, LLC 14035 NUNN "A" SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 11639 NUNN "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12930 NUNN "29" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14242 NUNN "3" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14252 NUNN "4" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14251 NUNN "5" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 07613 NUNN B SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 11133 NUNN 14 SWD SPRABERRY (TREND AREA) PARK HILL DISPOSAL LLC 20522 NUNN 5-44 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19191 NUNN 5A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11947 NUNN, ELIZABETH C. SPRABERRY (TREND AREA) 3N OILFIELD SERVICES LLC 01831 NUNN, ELIZABETH C. -C- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14131 NUNN, ELIZABETH C. -D- SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14132 NUNN, J. F. -A- SPRABERRY (TREND AREA) DE3 OPERATING LLC 13968 NUNN, J. F. -E- SPRABERRY (TREND AREA) WALSH & WATTS, INC. 09698 NUNN, J. F. "B" SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14135 NUNN, J. F."30" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14247 NUTT "B" LUCKY MAG (CONSOLIDATED) TRACKER RESOURCE DEV III, LLC 17199 NUTT, MOZELLE MOZELLE NUTT (STRAWN) DAMRON ENERGY, LLC 15378 O M KEENEY BRONTE (4800 SAND) BOAZ ENERGY II OPERATING, LLC 18530 O M KEENEY NDUGU (CROSS-CUT) BOAZ ENERGY II OPERATING, LLC 18035 O'HARROW-A KING MOUNTAIN, SE. (BEND) PITTS ENERGY CO. 12453 OAK HONDO PIPELINE (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 18284 OAK A HONDO PIPELINE (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 18870 OAK C HONDO PIPELINE (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 18937 OBERHOLTZER SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08220 ODIORNE 5 WILDCAT GLAHN RESOURCES, INC. 16682 ODOM, S. ALPAR BLK. 2 FORT CHADBOURNE (GARDNER) GRIZZLY OP OF DELAWARE, LLC 16566 ODOM, SALLIE FORT CHADBOURNE (GARDNER) GRIZZLY OP OF DELAWARE, LLC 15898 ODOM, SALLIE -E- FORT CHADBOURNE (GARDNER) GRIZZLY OP OF DELAWARE, LLC 00507 ODOM, SALLIE "B" FORT CHADBOURNE (GARDNER) GRIZZLY OP OF DELAWARE, LLC 14796 ODOM, SALLIE "F" FORT CHADBOURNE, W. (GDNR. S) GRIZZLY OP OF DELAWARE, LLC 00532 ODOM, SALLIE "300" FORT CHADBOURNE (GARDNER) GRIZZLY OP OF DELAWARE, LLC 13851 ODOM, SALLIE FLIPPEN CONDA (FLIPPEN) GRIZZLY OP OF DELAWARE, LLC 16480 OFFUTT, GEORGIA CARL CAHILL (STRAWN) ADCOCK, CAROL 07218 OGLESBY ROCK PEN (CANYON) MUNSON OPERATING, INC. 11051


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ OGLESBY 'C' LUCKY MAG (CONSOLIDATED) EXCEED PETROLEUM LLC 18157 OGLESBY "A" CHRISTI (CANYON 6800) MUNSON OPERATING, INC. 11594 OGLESBY "B" CHRISTI (CANYON 6800) THP OPERATING LLC 11721 OGLESBY "C" ROCK PEN (CANYON) EXCEED PETROLEUM LLC 17140 OHARROW KING MOUNTAIN (DEVONIAN) OSBORN HEIRS COMPANY 02929 OHARROW KING MOUNTAIN (ELLENBURGER) OSBORN HEIRS COMPANY 00800 OLA SPRABERRY (TREND AREA) COG OPERATING LLC 17339 OLD BLUE "25" JAR (PENNSYLVANIAN) XTO ENERGY INC. 14585 OLD BLUE 25 SPRABERRY (TREND AREA) XTO ENERGY INC. 19077 OLDHAM, D. M., JR., ETAL SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 01428 OLIVER SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06204 OLIVER (39-34) SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19920 OLIVER '39-34' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19576 OLIVER 39 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19311 OLIVER 39 AND 34 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19572 OLIVER 39-34 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19221 OLIVIA SPRABERRY (TREND AREA) COG OPERATING LLC 15876 OLSON UNIT OLSON ASPEN OPERATING COMPANY, L.L.C. 04689 OMEGA WFM (GOEN LIME) ENRICH OIL CORPORATION 16477 ONA WELLS SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 09026 ONEAL, B. J., ETAL TEXEL (DEVONIAN) FIREBIRD ENERGY LLC 04049 ONEAL, B.J. ETAL TEXEL (ELLENBURGER) FIREBIRD ENERGY LLC 11976 ONEAL, BILL JOHN NE/4 SEC 5 UNIT TEXEL (DEVONIAN) FIREBIRD ENERGY LLC 04347 ONEAL, BILL JOHN, NE/4 SEC. 5 UN TEXEL (PENNSYLVANIAN) FIREBIRD ENERGY LLC 04342 ONYX FREEDOM (RUBY LIMESTONE) MLC OPERATING, LP 16020 ONYX STATE UNIT "C" #5 FREEDOM (RUBY LIMESTONE) MLC OPERATING, LP 16018 ORELLANA LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17610 ORELLANA SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20589 ORELLANA (AW) LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18717 ORELLANA (AW) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20590 ORELLANA 'B' LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18020 ORELLANA 'B' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20597 ORELLANA 'C' LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18118 ORELLANA 'C' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20595 ORELLANA 'D' LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18408 ORELLANA 'D' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20598 ORELLANA 'E' LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18712 ORELLANA 'E' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20599 ORELLANA 'E' (AW) LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18713 ORELLANA 'E' (AW) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20600 ORELLANA 'E' (SA) LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18711 ORELLANA 'E' (SA) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20601 ORELLANA 'F' LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18353 ORELLANA 'F' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20602 ORELLANA 'G' LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18354 ORELLANA 'G' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20603 ORELLANA 'G' AW LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18709 ORELLANA 'G' AW SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20604 ORELLANA 'I' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20605 ORELLANA 'K' LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18807 ORELLANA 'K' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20607


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ORELLANA 'K' (AW) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20608 ORELLANA 'K' (AW) "A" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20606 ORELLANA "A" LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17787 ORELLANA A SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20596 ORGON BRILEY (PALO PINTO) BERRY, RICHARD B. 06731 ORTEGA LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18952 ORTEGA SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20609 OSBURN OSBURN (PALO PINTO) OTEX LLC 15383 OSR/KIRBY FARMER (SAN ANDRES) REDDIRT OPERATING, LLC. 16976 OSTRANDER JUNE ANN (PENNSYLVANIAN) TXP, INCORPORATED 19712 OSTRANDER '3' JUNE ANN (PENNSYLVANIAN) TXP, INCORPORATED 19713 OSTRANDER 1802 JUNE ANN (PENNSYLVANIAN) TXP, INCORPORATED 19912 OUTLAW SPRABERRY (TREND AREA) HEADINGTON ENERGY PARTNERS, LLC 20850 OWENS SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12438 OWENS -A- CLARA COUCH VANCO OIL & GAS CORP. 03043 OWENS -B- CLARA COUCH VANCO OIL & GAS CORP. 02950 OWENS -C- SPRABERRY (TREND AREA) DE3 OPERATING LLC 07254 OWENS -E- SPRABERRY (TREND AREA) DE3 OPERATING LLC 07371 OWENS -F- SPRABERRY (TREND AREA) DE3 OPERATING LLC 07370 OWENS -G- SPRABERRY (TREND AREA) DE3 OPERATING LLC 07369 OWENS -H- SPRABERRY (TREND AREA) DE3 OPERATING LLC 07413 OWENS -J- SPRABERRY (TREND AREA) DE3 OPERATING LLC 07541 OWENS -K- SPRABERRY (TREND AREA) DE3 OPERATING LLC 07563 OWENS 'A' SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 18025 OWENS '32' BENEDUM (SPRABERRY) HENRY RESOURCES LLC 18232 OWENS '9' SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 15805 OWENS "10" SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 15672 OWENS "220" BARNHART (GRAYBURG) RUSSELL OPERATING COMPANY, LLC 09704 OWENS "52" SPRABERRY (TREND AREA) DE3 OPERATING LLC 13698 OWENS A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17588 OWENS SWD SPRABERRY (TREND AREA) RAINS ENERGY, LLC 19044 OWENS 30 BENEDUM (SPRABERRY) HENRY RESOURCES LLC 18213 OWENS 32 SPRABERRY (TREND AREA) R 40 EXC HENRY RESOURCES LLC 20853 OWENS, D. SPRABERRY (TREND AREA) DE3 OPERATING LLC 07311 OWENS, ELLA BARNHART WTG EXPLORATION 00094 OWENS, ELLA BLUE DANUBE (BEND) XTO ENERGY INC. 12352 OWENS, ELLA BLUE DANUBE (STRAWN) XTO ENERGY INC. 14702 OWENS, ELLA -B- PRICE (GRAYBURG) WTG EXPLORATION 11342 OWENS, ET AL BARNHART (GRAYBURG) RUSSELL OPERATING COMPANY, LLC 08407 OWENS, FELMONT SPRABERRY (TREND AREA) DE3 OPERATING LLC 07803 OWENS, FELMONT "B" SPRABERRY (TREND AREA) HENRY RESOURCES LLC 07774 OWENS, J. W. CLARA COUCH STANOLIND PRODUCTION LLC 00329 OWENS, J. W. -D- CLARA COUCH STANOLIND PRODUCTION LLC 00330 OWENS, JEFF CLARA COUCH STANOLIND PRODUCTION LLC 00331 OWENS, L. SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16884 OWENS, T. SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 05315 OWENS, W. W. CLARA COUCH REIN PUSHER OPERATING LLC 08655 OZARK-LINDLEY "59" ROCK PEN (CANYON) J & J SERVICES COMPANY 11539 OZONA DEVELOPMENT "7" FARMER (SAN ANDRES) LAST DOLLAR LLC 10421 OZONA OIL UNIT -B- OZONA, SW. (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 05887 OZONA OIL UNIT -C- OZONA, SW. (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 06260


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ PADGETT UNIT KSUM (UPPER CAPS) SPH DEVELOPMENT, LLC 16750 PADGETT, W.T. BUSHER (MORRIS) SPH DEVELOPMENT, LLC 13381 PADGITT, JAMES T. CLARA COUCH STANOLIND PRODUCTION LLC 00332 PADGITT, JAMES T. PADGITT (STRAWN UPPER) SAFARI PRODUCTION CO 10495 PAGE HELEN (WOLFCAMP) DISCOVERY OPERATING, INC. 09568 PAGE PAGE, WEST (CANYON) DISCOVERY OPERATING, INC. 08959 PAGE UNIT PAGE UNITEX OIL & GAS, L.L.C. 03486 PAGE-SUGGS ROCK PEN (CANYON) THP OPERATING LLC 10795 PAIGE '13A-12A' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19787 PAIGE 13-12 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19476 PAIGE 13A AND 12A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19768 PAIGE 13A-12A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19711 PAIGE 13C-12-H '43' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20217 PAIGE 13C-12-H '44' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20267 PAIGE 13C-12-H '48-42' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20256 PALO-BOOTHE G BARNHART, NE. (GRAYBURG) H&H OPERATING 08854 PALO-TOMMYE BOOTHE S BARNHART, NE. (GRAYBURG) H&H OPERATING 08353 PAM WFM (GOEN LIME) ENRICH OIL CORPORATION 19055 PAN AM SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 13923 PAN-AMERICAN - JOHN W. DOSS BENEDUM (SPRABERRY) TARGA PIPELINE MID-CONTINENT LLC 06995 PANGEA WEST WILDCAT APPROACH OPERATING LLC 19953 PANGEA WEST HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17780 PANGEA WEST WEGER (SAN ANDRES) APPROACH OPERATING LLC 19280 PANGEA WEST 'D' AW HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 19371 PANGEA WEST AB AW HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 18716 PANGEA WEST AC AW HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 19370 PANGEA WEST 66-57 AW HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 18775 PAPE, G. EST BALLINGER (PALO PINTO, N.) OIL, GAS, ETC. LLC 07375 PAPE, WALTER H., JR. PAPE BROTHERS DOG BEND B & M OIL FIELD SERVICES 10796 PAPE, WALTER H., JR. SAVIOR (FRY, LOWER) B & M OIL FIELD SERVICES 12104 PARISH SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 04157 PARISH, NANNIE C. SRH (CLEAR FORK) V-F PETROLEUM INC. 14292 PARKER SPRABERRY (TREND AREA) COG OPERATING LLC 16802 PARKER RANCH 1026 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 16421 PARKER 30 SPRABERRY (TREND AREA) PAGE OIL & GAS, LLC 17815 PARKER, RUTH ELM CREEK (JENNINGS) BAKER OPERATING, INC. 11265 PARKS BUSHER (MORRIS) SPH DEVELOPMENT, LLC 15919 PARKS LUCKY MAG (CONSOLIDATED) SAFEMARK OIL & GAS, LLC 17009 PARKS, EMILY FREEMAN CDJ OIL CO. 10197 PARMER SWD GENEVA (ELLENBURGER) BARRON PETROLEUM LLC 18687 PARMER, DEWEY WESTERN EMPIRE (WOLFCAMP) GEOCROWN, INC. 15118 PARRAMORE WINTERS (CAPPS) HORIZON WELL SERVICES, INC. 13211 PATTERSON SANFORD (FRY) D.J. & T. ENERGY 12600 PATTERSON SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 15313 PATTERSON SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 06428 PATTERSON -E- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14189 PATTERSON -H- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14196 PATTERSON "B" SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 08384 PATTERSON, SUSAN SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14184 PATTON HONDO (FUSSELMAN) BRP ENERGY, LLC 13015 PATTON, MARY GRACE JAN_JERRYE, SE. (CANYON, LO.) BONFIRE OPERATING LLC 19310


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ PATTY SPRABERRY (TREND AREA) COG OPERATING LLC 16844 PAULA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18686 PAULA A SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18921 PAULA B SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19020 PAULA D SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 19277 PAULEY-PETTIT SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01599 PAULINE SPRABERRY (TREND AREA) COG OPERATING LLC 15500 PEA EYE PARKER LIN (WOLFCAMP) FORELAND OPERATING, LLC 19173 PEACH B 231-224 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 20909 PEARCE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13917 PEARL STATE UNIT FREEDOM (RUBY LIMESTONE) MLC OPERATING, LP 16054 PEARL STATE UNIT FREEDOM (WOLFCAMP) MLC OPERATING, LP 15842 PEARSON, FRANK REEF UNIT FRANK PEARSON (STRAWN REEF) ALARON ENERGY, INC. 07561 PEARSON, PAUL PURE-BEAN, SOUTH JETER DRILLING PRODUCTION 07123 PEARSON, PAUL PURE-BEAN, SOUTH LEWIS, T. K. 06159 PEARSON, PAUL PURE-BEAN, SOUTH RECOVERY OPERATING LP 19401 PEARSON, PAUL PURE-BEAN, SOUTH VINSON EXPLORATION 07400 PECAN A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17854 PECAN B SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18049 PECAN STATION SAN ANGELO, SE. (HARKEY SAND) MAYO, EDDIE 15104 PECK "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16097 PECK 20-29 SL SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 19365 PEGASUS "45" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 12373 PEGASUS ELLENBURGER UNIT WILDCAT XTO ENERGY INC. 12782 PEGASUS ELLENBURGER UNIT PEGASUS (ELLENBURGER) XTO ENERGY INC. 01175 PEGASUS FIELD UNIT #3 PEGASUS (DEVONIAN) XTO ENERGY INC. 13706 PEGASUS FIELD UNIT #3 PEGASUS (FUSSELMAN) XTO ENERGY INC. 03708 PEGASUS FIELD UNIT 3 PEGASUS (CONSOLIDATED) COG OPERATING LLC 17154 PEGASUS PENNSYLVANIAN UNIT PEGASUS (CONSOLIDATED) COG OPERATING LLC 17148 PEGASUS SAN ANDRES ROYALTY UNIT PEGASUS (SAN ANDRES) COG OPERATING LLC 05637 PEGASUS SPRABERRY UNIT PEGASUS (CONSOLIDATED) COG OPERATING LLC 17147 PEGASUS SPRABERRY UNIT PEGASUS (ELLENBURGER) COG OPERATING LLC 20239 PEGGY JOHN P (ELLENBURGER) GOLDEN OIL AND RANCH, LLC 18191 PELE SPRABERRY (TREND AREA) TRILOGY OPERATING, INC. 16467 PELZEL SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17094 PEMBROOK D-29 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19031 PEMBROOK FEE JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 03810 PEMBROOK RANCH SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 17530 PEMBROOK UNIT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04088 PEMBROOK X-1 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18627 PEMBROOK X-1F SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19354 PEMBROOK X-1G SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19351 PEMBROOK X-1H SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19313 PEMBROOK X-1J SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19399 PEMBROOK X-1K SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19400 PEMBROOK X-1L SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19376 PEMBROOK 1011 UNIT LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18362 PEMBROOK 15 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18667 PEMBROOK 20 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18262 PEMBROOK 28 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18997 PEMBROOK 4 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19059


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ PEMBROOK 7 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19208 PEMBROOK 9 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18603 PEMBROOK, RALPH -A- SPRABERRY (TREND AREA CL. FK.) ENDEAVOR ENERGY RESOURCES L.P. 05918 PENDULUM FALSE ARROWHEAD (KING SAND) CEDAR OIL COMPANY 13487 PENDULUM 'B' FENNELL (CISCO REEF) HORIZON EXPLORATION SERVICES 16747 PENDULUM "A" FALSE ARROWHEAD (KING SAND) HORIZON EXPLORATION SERVICES 13513 PENNY SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18479 PENTECOST HUNCH (CANYON) KATSCO ENERGY, INC. 13470 PENTECOST MEADOW CREEK (CANYON) KATSCO ENERGY, INC. 17603 PENTECOST MEADOW CREEK (CANYON) LP OPERATING, LLC 17448 PENTECOST "A" MEADOW CREEK (CANYON) PERIMETER RESOURCE COMPANY 08944 PETRO PLEX OIL CO INC. SCOTT AA JOHN SCOTT (GRAYBURG) PETRO PLEX OIL CO INC. 09651 PETTIT (14) SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17313 PETTIT -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02998 PETTIT '8A-8' SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 19392 PETTIT "C" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11701 PETTIT "14" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 11756 PETTIT "14A" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17233 PETTIT "8" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17323 PETTIT 8A SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17867 PETTIT 8A-8 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 19041 PETTIT, J. B. SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 06184 PETTIT, J. B."14" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01562 PETTIT, J.B. "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13906 PETTIT, JAP-B- SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 06347 PETTIT,JAP SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 06360 PFLUGER DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 13434 PFLUGER RAMON, NORTH (LEONARD) NAUMANN OIL & GAS, INC. 19032 PFLUGER (M) ET AL WEGER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08070 PFLUGER -66- MAGGIE NEAL (GRAYBURG) MULLOY OPERATING, INC. 08515 PFLUGER "B" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12341 PFLUGER "C" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20444 PFLUGER "C" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12424 PFLUGER "D" CELERY (STRAWN B) ALWAYS CONSULTING, INC. 09266 PFLUGER "D" DARE I (HOPE) DAMRON ENERGY, LLC 15160 PFLUGER "D" DARE I (HOPE) DAUBERT OPERATING, L.L.C. 14607 PFLUGER "D" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20433 PFLUGER "D" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12481 PFLUGER "E" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20436 PFLUGER "E" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12340 PFLUGER "F" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20446 PFLUGER "F" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 13341 PFLUGER "G" RIVES (SAN ANDRES) INDEPENDENCE RESOURCES MGMT, LLC 13233 PFLUGER "G" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20445 PFLUGER "G" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12594 PFLUGER "J" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20435 PFLUGER "N" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20443 PFLUGER "N" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12573 PFLUGER B SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 19720 PFLUGER B 1 SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20053 PFLUGER CONSOLIDATED LONE JOE DEEP (FUSSELMAN) GANADOR OPERATING, LLC 12874


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ PFLUGER D 4 SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20054 PFLUGER D 5 SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 19757 PFLUGER H SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20442 PFLUGER H SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 13497 PFLUGER M SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17833 PFLUGER RANCH SOUTH CELERY (STRAWN 2975) TRI-FORCE OPERATING, L.L.C. 13120 PFLUGER SOUTH CELERY (GUNSIGHT) TRI-FORCE OPERATING, L.L.C. 14410 PFLUGER UNIT A DON PFLUGER (DETRITAL) MERCURY OPERATING, LLC 19113 PFLUGER, "J" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 13707 PFLUGER, ET AL WEGER (SAN ANDRES) FOUR STARR PRODUCTION, LLC 06749 PFLUGER, MADLYN "A" LIVE OAK (STRAWN) OTEX LLC 09322 PFLUGER, MADLYN "1,2" CELERY (STRAWN 2975) OTEX LLC 08583 PFLUGER, R. DARE I (COOK) DAMRON ENERGY, LLC 15021 PFLUGER, W. DARE I (HOPE) DAMRON ENERGY, LLC 14434 PFLUGER, W. C. WEGER (SAN ANDRES) RECOVERY OPERATING LP 09694 PFLUGER, WALTER & RAYMOND PIPE DREAM (KING SAND) CANAN MOWREY OPERATING, LLC 13321 PFLUGER, WALTER & RAYMOND "C" PIPE DREAM (KING SAND) CANAN MOWREY OPERATING, LLC 13365 PHELPS WFM (GOEN LIME) D.K.D. 18138 PHILLIPS IRION, W. (CANYON) PACE PRODUCTION CO. 08198 PHILLIPS "1229" VELREX (HENDERSON UPPER) TOC ENERGY RESOURCES, LLC 13145 PHILLIPS "4" IRION, W. (CANYON) BREITBURN OPERATING L.P. 08776 PHILLIPS HIGHTOWER MCCAMEY XOG OPERATING LLC 03665 PHILLIPS STATE (H) FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 10149 PHILLIPS-ZULETTE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11791 PHILLIPS-ZULETTE "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11730 PIERCE GULF V. I. P. (CLEAR FORK MIDDLE) TOC ENERGY RESOURCES, LLC 05434 PIERCE UNIT KENDRICK (MORRIS) 3 AMIGOS OIL CO. 17135 PIERCE-SUNRAY V. I. P. (CLEAR FORK MIDDLE) TOC ENERGY RESOURCES, LLC 05393 PIERCE, J. S. PIERCE (CLEARFORK) DJH OIL & GAS LLC 12816 PIERCE, V. I. V. I. P. (CLEAR FORK MIDDLE) TOC ENERGY RESOURCES, LLC 05421 PIERCE, V. I. 10 V. I. P. (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 15411 PIERCE, V.I. 103 A OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 15384 PIERCE, VICTOR V. I. P. (CLEAR FORK, LO.) TOC ENERGY RESOURCES, LLC 05321 PINK DRAW NORTH JONED (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 14874 PIPELINE "57" HONDO (CANYON SAND) DISCOVERY NATURAL RESOURCES LLC 15349 PIPELINE "57" HONDO PIPELINE (ELLENBURGER) PRIME OPERATING COMPANY 12891 PIRTLE CREE-SYKES (GARDNER, UPPER) WILLOWBEND INVESTMENTS, INC. 16149 PITCHFORD KIRKHAM (JENNINGS SAND) SEQUOIA FOSSIL FUELS, INC. 12990 PIZARRO LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17616 PIZARRO SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20610 PLACID RIDGE WILDCAT MERCURY OPERATING, LLC 19426 PLAGENS SPRABERRY (TREND AREA) JMW RESOURCES, INC. 09428 PLAYA UNIVERSITY 9-15 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 17678 PLYMOUTH DUSTER SPRABERRY (TREND AREA) TRINITY ENVIRO SWD I, L.L.C. 17722 POAGE SWD SPRABERRY (TREND AREA) TRINITY ENVIRO SWD I, L.L.C. 18416 POE POE (GOEN SAND) GOLDEN OIL AND RANCH, LLC 20222 POE, CLIFFORD FENNELL (CISCO REEF) KAISER-FRANCIS OIL COMPANY 17863 POE, CLIFFORD NORTON, N. (CAPPS) KAISER-FRANCIS OIL COMPANY 16733 POE, CLIFFORD POE (GOEN SAND) KAISER-FRANCIS OIL COMPANY 15362 POE, G. W. J. P. D. (CISCO REEF) CEDAR OIL COMPANY 06759 POE, G. W. POE (REEF) ECT RESOURCES 01199


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ POE, W. J. POE (GOEN SAND) RUNNELS S.W.D.,INC. 06847 POE, W.J. POE (GOEN SAND) RUNNELS S.W.D.,INC. 14397 POEHLS DEIKE (GOEN) HARDROCK RESOURCES INC. 12479 POEHLS JIM ADAMS (FRY) POWERFLEX SERVICES INC. 16602 POEHLS JIM ADAMS (STRAWN) HARDROCK RESOURCES INC. 15726 POLO 1603B SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19546 POLO 1604A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19601 POLO 1604BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19592 POLO 1605A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 20464 POLO 1605BU SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19268 PONDEROSA PRICE (GRAYBURG) TX ENERGY SERVICES, LLC 17597 POOL "167" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 05307 POOL "170" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 05056 POWELL CAMAR, SW. (STRAWN) VX OPERATING, LLC 18941 POWELL CARAWAY & SMITH, SW. (CAMAR SD.) SALT CREEK PRODUCTION, INC. 15743 POWELL FORT MCKAVITT (LIME 4150) OSBORN HEIRS COMPANY 19133 POWELL PEGASUS (CONSOLIDATED) PILOT WATER SOLUTIONS PERMIANLLC 19138 POWELL SAN SABA (TILLERY) SALT CREEK PRODUCTION, INC. 16081 POWELL SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12825 POWELL SPRABERRY (TREND AREA) PILOT WATER SOLUTIONS PERMIANLLC 15097 POWELL STAR LIGHT (BRECKENRIDGE) STAR PRODUCTION, INC. 16958 POWELL STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 15901 POWELL TILLERY, NW. (STRAWN) OSBORN HEIRS COMPANY 16788 POWELL -B- WORLD TROJAN OIL COMPANY, LLC 02210 POWELL -C- WORLD TROJAN OIL COMPANY, LLC 02211 POWELL 'A' CAMAR, SW. (STRAWN) VX OPERATING, LLC 19741 POWELL '31' UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19164 POWELL '32' SPRABERRY (TREND AREA) OVINTIV USA INC. 18389 POWELL '32' A SPRABERRY (TREND AREA) OVINTIV USA INC. 18472 POWELL '32' PSA SPRABERRY (TREND AREA) OVINTIV USA INC. 18845 POWELL "A" BUENA VENTURA (CISCO) STAR PRODUCTION, INC. 16388 POWELL "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10527 POWELL "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10571 POWELL "H" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12614 POWELL "I" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12756 POWELL "J" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12809 POWELL "K" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12988 POWELL "L" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13029 POWELL "N" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 13011 POWELL "O" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13012 POWELL "P" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13064 POWELL "10A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 18451 POWELL "13" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09388 POWELL "16" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09133 POWELL "17" SPRABERRY (TREND AREA) OVINTIV USA INC. 13350 POWELL "19" SPRABERRY (TREND AREA) COG OPERATING LLC 10154 POWELL "19" A SPRABERRY (TREND AREA) OVINTIV USA INC. 20373 POWELL "20" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09207 POWELL "21" SPRABERRY (TREND AREA) COG OPERATING LLC 17335 POWELL "21" A SPRABERRY (TREND AREA) COG OPERATING LLC 17550 POWELL "23-B" SPRABERRY (TREND AREA) OVINTIV USA INC. 10889


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ POWELL "23" SAN SABA (CAMAR) SALT CREEK PRODUCTION, INC. 16323 POWELL "23" SPRABERRY (TREND AREA) OVINTIV USA INC. 09313 POWELL "26-B" SPRABERRY (TREND AREA) OVINTIV USA INC. 10762 POWELL "26" SPRABERRY (TREND AREA) OVINTIV USA INC. 09394 POWELL "28-B" SPRABERRY (TREND AREA) OVINTIV USA INC. 10935 POWELL "28" CARAWAY & SMITH (1600 SD.) CREST OPERATING COMPANY 12387 POWELL "28" SPRABERRY (TREND AREA) OVINTIV USA INC. 09324 POWELL "29-B" SPRABERRY (TREND AREA) OVINTIV USA INC. 10954 POWELL "29" SPRABERRY (TREND AREA) OVINTIV USA INC. 09395 POWELL "30-B SPRABERRY (TREND AREA) OVINTIV USA INC. 10875 POWELL "30" SPRABERRY (TREND AREA) OVINTIV USA INC. 09323 POWELL "31" SPRABERRY (TREND AREA) COG OPERATING LLC 17228 POWELL "33-B" SPRABERRY (TREND AREA) OVINTIV USA INC. 10789 POWELL "33" SPRABERRY (TREND AREA) OVINTIV USA INC. 09228 POWELL "34" SPRABERRY (TREND AREA) OVINTIV USA INC. 09298 POWELL "36" SPRABERRY (TREND AREA) COG OPERATING LLC 17113 POWELL "5" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13299 POWELL "85" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11803 POWELL E WORLD UNITEX OIL & GAS, L.L.C. 16647 POWELL F WORLD UNITEX OIL & GAS, L.L.C. 16681 POWELL Q SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15997 POWELL RANCH SPRABERRY (TREND AREA) OCCIDENTAL PERMIAN LTD. 18835 POWELL RANCH "24" SPRABERRY (TREND AREA) OVINTIV USA INC. 10652 POWELL RANCH "26" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 10710 POWELL TD WORLD UNITEX OIL & GAS, L.L.C. 02248 POWELL 13 SPRABERRY (TREND AREA) ATLAS OPERATING LLC 08933 POWELL 20 SPRABERRY (TREND AREA) OVINTIV USA INC. 11061 POWELL 20 "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13054 POWELL 20"B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13079 POWELL 23 SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 18873 POWELL 23P SPRABERRY (TREND AREA) OVINTIV USA INC. 20990 POWELL 24 A SPRABERRY (TREND AREA) ATLAS OPERATING LLC 08735 POWELL 26 SPRABERRY (TREND AREA) ATLAS OPERATING LLC 08681 POWELL 26A SPRABERRY (TREND AREA) OVINTIV USA INC. 19312 POWELL 26B SPRABERRY (TREND AREA) OVINTIV USA INC. 19387 POWELL 26E SPRABERRY (TREND AREA) OVINTIV USA INC. 19902 POWELL 28 SPRABERRY (TREND AREA) ATLAS OPERATING LLC 08604 POWELL 33A SPRABERRY (TREND AREA) OVINTIV USA INC. 20154 POWELL 33B SPRABERRY (TREND AREA) OVINTIV USA INC. 20153 POWELL 33C SPRABERRY (TREND AREA) OVINTIV USA INC. 20152 POWELL 33G SPRABERRY (TREND AREA) OVINTIV USA INC. 19463 POWELL 33X SPRABERRY (TREND AREA) OVINTIV USA INC. 19436 POWELL 34 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 15858 POWELL 35 SPRABERRY (TREND AREA) OVINTIV USA INC. 09091 POWELL 35X SPRABERRY (TREND AREA) OVINTIV USA INC. 19107 POWELL-PATTON SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19990 POWELL, A. H. WORLD UNITEX OIL & GAS, L.L.C. 02206 POWELL, CTR-A WORLD UNITEX OIL & GAS, L.L.C. 02234 POWELL, CTR-EP WORLD UNITEX OIL & GAS, L.L.C. 02232 POWELL, GMS-A WORLD UNITEX OIL & GAS, L.L.C. 02225 POWELL, GMS-B WORLD UNITEX OIL & GAS, L.L.C. 02226


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ POWELL, GMS-C WORLD UNITEX OIL & GAS, L.L.C. 02227 POWELL, GMS-D WORLD UNITEX OIL & GAS, L.L.C. 16197 POWELL, GMS-E WORLD UNITEX OIL & GAS, L.L.C. 02229 POWELL, GMS-G WORLD UNITEX OIL & GAS, L.L.C. 02230 POWELL, GMS-H WORLD UNITEX OIL & GAS, L.L.C. 02231 POWELL, JAMES TILLERY (STRAWN LIME) SMC OIL & GAS, INC. 15678 POWELL, JOHN A. JOHN P (ELLENBURGER) GEOSURVEYS, INC. 17754 POWELL, L. P. WORLD TROJAN OIL COMPANY, LLC 02237 POWELL, L. P. -A- WORLD TROJAN OIL COMPANY, LLC 02212 POWELL, L. P. -A- WORLD UNITEX OIL & GAS, L.L.C. 02239 POWELL, L. P. -B- WORLD UNITEX OIL & GAS, L.L.C. 02240 POWELL, L. P. -C- WORLD UNITEX OIL & GAS, L.L.C. 02241 POWELL, L. P. -D- WORLD UNITEX OIL & GAS, L.L.C. 02242 POWELL, L. P. -H- WORLD UNITEX OIL & GAS, L.L.C. 02246 POWELL, L. P. -54- WORLD SAHARA OPERATING COMPANY 04366 POWELL, L. P. GMS-CH WORLD UNITEX OIL & GAS, L.L.C. 06899 POWELL, LFT-A WORLD UNITEX OIL & GAS, L.L.C. 02220 POWELL, LFT-C WORLD UNITEX OIL & GAS, L.L.C. 02221 POWELL, LFT-D WORLD UNITEX OIL & GAS, L.L.C. 02222 POWELL, LFT-E WORLD UNITEX OIL & GAS, L.L.C. 02223 POWELL, LFT-X WORLD UNITEX OIL & GAS, L.L.C. 02224 POWELL, M. C. 840 MCCAMEY TRIPP & SONS, LLC 00840 POWELL, M. C. 852 MCCAMEY TRIPP & SONS, LLC 00852 POWELL, V. J. SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17063 POWELL, V. J. -A- SPRABERRY (TREND AREA CL. FK.) JATAM INC. 02891 POWELL, V. J. "17" PEGASUS (CONSOLIDATED) OVINTIV USA INC. 18859 POWELL, VIRGIL PEGASUS (CONSOLIDATED) COG OPERATING LLC 17164 POWELL, VIRGIL SPRABERRY (TREND AREA) ATLAS OPERATING LLC 10860 POWELL, VIRGIL "B" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17149 POWELL, VIRGIL J TILLERY (CANYON, UPPER) STEPHENS & JOHNSON OPERATING CO. 07860 POWELL, VIRGIL J. TILLERY (PENN.) STEPHENS & JOHNSON OPERATING CO. 01996 POWELL, VIRGIL J. "B" TILLERY (STRAWN LIME) CHOLLA PETROLEUM, INC. 09208 POWELL, VIRGIL J. TR. "A" TILLERY (STRAWN LIME) OSBORN HEIRS COMPANY 17053 POWELL, VIRGIL J., TR. -B- TILLERY (PENN.) OSBORN HEIRS COMPANY 02395 POWELL, VIRGIL J.TRACT "A" TILLERY (CANYON, UPPER) OSBORN HEIRS COMPANY 09069 POWERS SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17732 POWERS A POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 20220 POWERS B LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 20212 POWERS C POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 20434 PRESLEY WINTERS (GARDNER "A") POWERFLEX SERVICES INC. 16209 PRICE "C" FRANK PEARSON (STRAWN REEF) VANCO OIL & GAS CORP. 10006 PRICE "309" ARLEDGE (PENN SAND) KATSCO ENERGY, INC. 07776 PRICE EAST ACR (CANYON) KATSCO ENERGY, INC. 18889 PRICE G BLOODWORTH, NE. (6120 CANYON) J V A OPERATING COMPANY, INC. 19153 PRICE, F. ACR (CANYON) VANCO OIL & GAS CORP. 07477 PRICE, F. "A" ACR (CANYON) ALARON ENERGY, INC. 09474 PRIDDY, J. F. SPRABERRY (TREND AREA) SAHARA OPERATING COMPANY 14137 PRIDDY, J. F. WFM (GOEN LIME) ENRICH OIL CORPORATION 17221 PRIEST SPRABERRY (TREND AREA) DE3 OPERATING LLC 07564 PRIEST '12' SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18636 PRIESTLEY RAMON (LEONARD) FELDERHOFF PRODUCTION COMPANY 19168


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ PRIME KILE SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16650 PRIME KILE "A" SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 16639 PRIME KILE "B" SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 16649 PRITCHARD DORMAN, WEST (GOEN) CEDAR OIL COMPANY 17806 PRITCHARD WINTERS, NORTH CEDAR OIL COMPANY 17940 PRO OIL #3 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 12802 PROBANDT -58- PROBANDT (CANYON) PIONEER NATURAL RES. USA, INC. 08234 PROBANDT "55" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20749 PROBANDT "55" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17290 PROBANDT "56" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20748 PROBANDT "56" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17284 PROCTOR SPRABERRY (TREND AREA) TARGA PIPELINE MID-CONTINENT LLC 11433 PROCTOR -28- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14239 PROCTOR "21" SPRABERRY (TREND AREA) STEWART PRODUCERS, INC. 14263 PROCTOR, A LC SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 01479 PROCTOR, A LC SPRABERRY (TREND AREA CL. FK.) PARSLEY ENERGY OPERATIONS, LLC 18913 PROCTOR, B LC SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 01480 PROCTOR, C LC SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 01481 PROCTOR, LEONARD "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13921 PRUGEL - HENKE NICK OF TIME (HOPE) OTEX LLC 15337 PRUGEL-HENKE JACOBY (FRY) OTEX LLC 15219 PRUSER, GEORGE JR. ELM CREEK (GARDNER 4000) 3-D OIL & GAS 08914 PURE-VAUGHN PURE-BEAN OZTX OIL & GAS, L.L.C. 01211 QUAIL HOLLOW 174 SPRABERRY (TREND AREA) A & G PRODUCERS, INC. 18751 QUAIL RANCH SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16545 QUAIL RANCH 150 SWD SPRABERRY (TREND AREA) COG OPERATING LLC 18260 R.B. JOHN SCOTT (GRAYBURG) MICHAELSON PRODUCING COMPANY 09099 R.E. HICKMAN BRONTE (4800 SAND) BOAZ ENERGY II OPERATING, LLC 17941 R.F. BUTNER RAWLINGS (5300) IVORY ENERGY, LLC 18421 R.F. BUTNER RAWLINGS (5500) IVORY ENERGY, LLC 18538 R.S. WINDHAM 118 SPRABERRY (TREND AREA) APACHE CORPORATION 14549 RABON ARENA (KING SAND) DAMRON ENERGY, LLC 12394 RABON 'A' ARENA (KING SAND) JASPER ENERGY, INCORPORATED 16257 RACHEAL 1 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 21009 RACHEAL 3 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 20906 RACHEAL 4 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 21015 RACHEAL 5 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 20907 RACHEAL 6 SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 20963 RACHEL SPRABERRY (TREND AREA) COG OPERATING LLC 15570 RADFORD GROCERY RODMAN-NOEL (GRAYBURG) PHARAOH OIL & GAS, INC. 01237 RADIO TOWER RD SWD SPRABERRY (TREND AREA) ON POINT OILFIELD OPERATIONS LLC 18766 RADIO TOWER ROAD SPRABERRY (TREND AREA) PYOTE WELL SERVICE, LLC 17239 RAILWAY RANCH "18" SPRABERRY (TREND AREA) COG OPERATING LLC 16195 RAILWAY RANCH "30" SPRABERRY (TREND AREA) COG OPERATING LLC 16555 RAINMAKER WYATT O'RYAN OIL AND GAS 13860 RAINMAKER 2 WYATT O'RYAN OIL AND GAS 14191 RAINMAKER 3 WYATT O'RYAN OIL AND GAS 15072 RANCH JOHN SCOTT (GRAYBURG) MICHAELSON PRODUCING COMPANY 09289 RANCH HAND "55" WORLD, EAST (STRAWN) OXY USA INC. 14902 RANDY JOHNSON '19-19A' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19750 RANDY JOHNSON 19 AND 19A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19756


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ RANDY JOHNSON 19-19A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19845 RANKIN SWD BENEDUM (SPRABERRY) PINNERGY, LTD. 17884 RANKIN 9 SPRABERRY (TREND AREA) 3-T EXPLORATION, INC. 19604 RANKINBAKER 252 SWD BENEDUM (SPRABERRY) NGL WATER SOLUTIONS PERMIAN, LLC 18795 RAPE "1" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16284 RATLIFF BENEDUM (SPRABERRY) AQUA TERRA PERMIAN, LLC 17811 RATLIFF '30' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17771 RATLIFF "A" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 12460 RATLIFF "32" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17614 RATLIFF "6" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16031 RATLIFF 28 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19236 RATLIFF 28 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18577 RATLIFF 9-7 A SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20109 RATLIFF 9-7 B SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20111 RATLIFF 9-7 C SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 21028 RATLIFF 9-7 D SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 21029 RATLIFF 9-7 E SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 21037 RAUCH LUCKY MAG (CONSOLIDATED) THP OPERATING LLC 17005 RAWLINGS 390 NIPPLE PEAK, SOUTH (ELLENBURGER) SHAIDA, JOHN H. 15003 RAWLINGS 390A NIPPLE PEAK, SOUTH (ELLENBURGER) IVORY ENERGY, LLC 15116 RAWLINGS 397 NIPPLE PEAK, SOUTH (ELLENBURGER) SHAIDA, JOHN H. 15004 RAWLINGS 398 NIPPLE PEAK, SOUTH (ELLENBURGER) SHAIDA, JOHN H. 15005 RAWLINGS, M. A. RAWLINGS (5100) IVORY ENERGY, LLC 01228 RAY REED 32 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 20252 RCR RE 1 180 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20354 RCR 180 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19728 RCR 180 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20683 RCR 180-197 ALLOC 02 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19873 RCR 180-197 ALLOC 02 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20682 RCR 180-197 ALLOC 03 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19956 RCR 180-197 ALLOC 03 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20681 RCR 180-197 ALLOC 04 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19938 RCR 180-197 ALLOC 04 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20680 RCR 180-197 ALLOC 05 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19939 RCR 180-197 ALLOC 05 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20679 RCR 180-197 ALLOC 06 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19936 RCR 180-197 ALLOC 06 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20678 RCR 180-197 ALLOC 07 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19948 RCR 180-197 ALLOC 07 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20677 REAGAN SPRABERRY (TREND AREA) COG OPERATING LLC 16190 REAGAN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16557 REAGAN 333 SWD STILES (ELLENBURGER) NGL WATER SOLUTIONS PERMIAN, LLC 19085 REAGAN 375 SWD SPRABERRY (TREND AREA) GOODNIGHT MIDSTREAM PERMIAN, LLC 18470 REAGAN-HICKMAN "A" BARNHART, NE. (GRAYBURG) TOMEL PRODUCTION, LLC 11081 REBECCA JEAN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17066 RECYCLER HONDO RAINBOW (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 14941 RED RIVER SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 17277 RED STATE SPRABERRY (TREND AREA) GRIFFIN PETROLEUM COMPANY 18983 REESE 15-10-A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20533 REESE 15-10-B SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20421 REESE 15C-10-H SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20776


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ REESE 15E-10-E SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 21006 REESE 15E-10-F SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20943 REESE 15F-10-D SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20940 REESE, A.A. MCCAMEY (QUEEN) XOG OPERATING LLC 10416 REINHARDT 6 SAWYER (LEONARD) UPP OPERATING, LLC 17071 RENEGADE SPRABERRY (TREND AREA) R 40 EXC HEADINGTON ENERGY PARTNERS, LLC 20369 RENFRO "11" LONE EAGLE (CLEARFORK) COMPASS ENERGY OPERATING, LLC 15887 RENFRO "11" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17414 RENFRO "11A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20752 RENFRO "11A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17638 RENFRO "20" SPRABERRY (TREND AREA) TXP, INCORPORATED 20419 RENFRO "20" SUGG RANCH (CANYON) TXP, INCORPORATED 17720 RENFRO"11" LONESOME REEF II (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 15814 REX SPRABERRY (TREND AREA) KILLER RABBIT FIELDS LLC 11008 REXENE SPRABERRY (TREND AREA) SM ENERGY COMPANY 16107 REYNOLDS "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12080 REYNOLDS "41" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 07985 REYNOLDS, C. C. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14212 REYNOLDS, DAVID SPRABERRY (TREND AREA) REGIONS OPERATING, LLC 06550 REYNOLDS, J.A. SPRABERRY (TREND AREA) DE3 OPERATING LLC 07408 RHONDA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16743 RIC GWYN, WEST (CANYON) DISCOVERY OPERATING, INC. 08211 RICHARDSON W. RICHARDSON (WOLFCAMP) THOMPSON, J. CLEO 13669 RICHEY "53" PROBANDT (CANYON) PIONEER NATURAL RES. USA, INC. 16023 RICHEY "54A" PROBANDT (CANYON) PIONEER NATURAL RES. USA, INC. 08486 RICHEY SEC. 42 "A" PROBANDT (CANYON) PIONEER NATURAL RES. USA, INC. 08491 RICKER MCCAMEY XOG OPERATING LLC 00841 RICKER SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02404 RICKER -A- MCCAMEY XOG OPERATING LLC 00901 RICKER -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04580 RICKER -C- MCCAMEY XOG OPERATING LLC 00911 RICKER -D- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04726 RICKER -E- MCCAMEY XOG OPERATING LLC 00913 RICKER -E- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04773 RICKER -F- 1 ENRON SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17653 RICKER -F-2-ENRON SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14173 RICKER -G- ENRON SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14165 RICKER -24 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 05422 RICKER -24-"3" SPRABERRY (TREND AREA) ATLAS OPERATING LLC 12168 RICKER -24-"4" SPRABERRY (TREND AREA) ATLAS OPERATING LLC 12169 RICKER -25-"3" SPRABERRY (TREND AREA) ATLAS OPERATING LLC 12172 RICKER -25-"4" SPRABERRY (TREND AREA) ATLAS OPERATING LLC 12173 RICKER -27- SPRABERRY (TREND AREA) ATLAS OPERATING LLC 12171 RICKER -27- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04885 RICKER -27- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 05317 RICKER -28B- SPRABERRY (TREND AREA) ATLAS OPERATING LLC 12166 RICKER -35- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04851 RICKER "E"-ENRON SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14164 RICKER "H" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12947 RICKER "24" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17251 RICKER "24A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17305


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ RICKER "25" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16895 RICKER "25A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16950 RICKER RANCH -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14041 RICKER 25 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 05202 RICKER 28 -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04831 RICKER 28A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04723 RICKER 36 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14560 RICKER 37-46 D SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20979 RICKER 37-5 E SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20967 RICKER 37-5 F SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20968 RICKER 38 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14558 RICKER 45 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14559 RICKER-HUGHES 2-1 D SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20015 RICKER-HUGHES 2-1 E SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20016 RICKER, R. SPRABERRY (TREND AREA) CITATION OIL & GAS CORP. 04718 RICKER, R. P. MCCAMEY XOG OPERATING LLC 00902 RICKER, R. P. (00978) MCCAMEY XOG OPERATING LLC 00978 RICKER, R. P. -B- MCCAMEY XOG OPERATING LLC 00903 RICKER, R. P. B-1 MCCAMEY XOG OPERATING LLC 13443 RICKER, R. P. B-2 MCCAMEY XOG OPERATING LLC 13444 RICKER, RUPERT P. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04558 RICKER, RUPERT P. -AB- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13932 RICKER, RUPERT P. -CB- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13934 RICKER, RUPERT P. -DB- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13935 RICKER, RUPERT P. "P" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13941 RICKER, RUPERT P., -BB- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13933 RICKER, RUPERT P., -FB- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13936 RICKER, RUPERT P., -J- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13940 RICKER, RUPERT P., -KO- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13942 RICKER, RUPERT P., -Q- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13938 RICKER, RUPERT P., "HB" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13939 RICKS WILDCAT CAZAR ENERGY INC 15045 RICKS BRADY MOUNTAIN (CANYON) CAZAR ENERGY INC 15253 RILEY SPRABERRY (TREND AREA) COG OPERATING LLC 16801 RINGO SPRABERRY (TREND AREA) APACHE CORPORATION 13996 RINGO SPRABERRY (TREND AREA) DE3 OPERATING LLC 03193 RINGO (8 -9) SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19808 RINGO -B- SPRABERRY (TREND AREA) DE3 OPERATING LLC 03194 RINGO -C- SPRABERRY (TREND AREA) DE3 OPERATING LLC 03312 RINGO -D- SPRABERRY (TREND AREA) DE3 OPERATING LLC 04000 RINGO #8-9 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19486 RINGO '10-7' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19223 RINGO '8-9' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19525 RINGO "A" SPRABERRY (TREND AREA) APACHE CORPORATION 07930 RINGO "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12022 RINGO "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12204 RINGO "D" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12353 RINGO "E" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12421 RINGO "G" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12535 RINGO "H" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12611 RINGO "J" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13045


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ RINGO "10" SPRABERRY (TREND AREA) BUSTAMANTE OIL COMPANY 12633 RINGO "14" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16383 RINGO "7" SPRABERRY (TREND AREA) DE3 OPERATING LLC 13083 RINGO "7" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16438 RINGO "9" SPRABERRY (TREND AREA) BUSTAMANTE OIL COMPANY 12635 RINGO A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 01799 RINGO B SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 01800 RINGO 10 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18928 RINGO 10 AND 7 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19420 RINGO 14 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18635 RINGO 14 SWD SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20275 RINGO 7-14 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19315 RINGO 8 AND 9 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19611 RINGO 8-9 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19166 RINGO 8-9-DX SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 21035 RINGO 8-9-DZ SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20997 RINGO 8-9-F SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 21014 RINGO 9 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18970 RINGO-BIRD 7A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19655 RINGO-BIRD 7B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19658 RINGO-BIRD 7C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19623 RINGO, R. E. SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 06183 RINGO, RENNA T. ET AL SPRABERRY (TREND AREA) DE3 OPERATING LLC 07312 RINN SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09045 RIO BRAVO WATER VALLEY (SAN ANDRES) GILSTRAP, JOEL 02096 RIO BRAVO OIL COMPANY WATER VALLEY (SAN ANDRES) GILSTRAP, JOEL 02094 RIO GRANDE -118- SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 17527 RLR ODOM MOTLEY, NORTH (ODOM LIME) ENRICH OIL CORPORATION 19764 ROACH SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14229 ROACH '166' SPRABERRY (TREND AREA) MCPHAUL, INC. 17670 ROACH "50" VELREX (HENDERSON UPPER) CAPITOL WELL SERVICING CO., INC. 12622 ROACH 20 CODY BELL (CANYON) TOC ENERGY RESOURCES, LLC 13505 ROBBIE '17-8' SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19152 ROBBIE JANE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16885 ROBBIE 17 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08685 ROBBIE 17 AND 8 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19200 ROBBIE 17-8 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19246 ROBBIE 17A-8 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20044 ROBBIE 17A-8-F SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20172 ROBBIE 17A-8-G SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20138 ROBBINS WILDCAT TEXAS INTERNATIONAL RESOURCE LLC 17669 ROBBINS LOCO RICO (GARDNER-A) TEXAS INTERNATIONAL RESOURCE LLC 18498 ROBBINS '19' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18297 ROBBINS '23' SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 18647 ROBBINS '25' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18513 ROBBINS '27' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18332 ROBBINS '5' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18604 ROBBINS "1" SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 21002 ROBBINS "1" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17739 ROBBINS "3" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17719 ROBBINS "397" NIPPLE PEAK, SOUTH (ELLENBURGER) SHAIDA, JOHN H. 15020


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ROBBINS 21 SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 18648 ROBBINS, F. CROCKETT POLARIS PRODUCTION CORP. 05865 ROBERTSON ALLEN HILL (STRAWN) CHARTER PETROLEUM COMPANY 08813 ROBERTSON CONCHO (CANYON) LIPAN FLATS PRODUCTION, L.L.C. 18176 ROBERTSON-MULHOLLAND PRICE (GRAYBURG) ATLAS OPERATING LLC 10413 ROBERTSON-MULHOLLAND SPRABERRY (TREND AREA) ATLAS OPERATING LLC 08376 ROBINSON MOTLEY, NORTH (PALO PINTO) BERRY ENERGY COMPANIES 14350 ROBINSON-E OTTO (CANYON) WILLIAMS OIL COMPANY 02682 ROBINSON, JR. MOTLEY, NORTH (CADDO LIME) BERRY ENERGY COMPANIES 08945 ROCK HOLLOW SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17647 ROCK HOLLOW D SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18628 ROCK PEN CLEARFORK UNIT ROCK PEN (CLEARFORK) ARMOR PETROLEUM, INC. 13010 ROCK PEN NORTH ROCK PEN (CLEARFORK) SYMOC, LLC 15577 ROCKER (H) -71- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04445 ROCKER (M) -150- JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 02595 ROCKER (M) -151- JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 04396 ROCKER -B- SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 04440 ROCKER -B- SECTION 11 SPRABERRY (TREND AREA) APACHE CORPORATION 04759 ROCKER "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12976 ROCKER "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14573 ROCKER "B" SPRABERRY (TREND AREA) SMITH PIPE OF ABILENE 09916 ROCKER "B" SUGG (ELLENBURGER) PIONEER NATURAL RES. USA, INC. 16270 ROCKER "B" -Z 7- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16392 ROCKER "B" -Z10- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16394 ROCKER "B" -Z10A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16395 ROCKER "B" -Z11-12- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16396 ROCKER "B" -Z16- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16397 ROCKER "B" MALLOW 5 SPRABERRY (TREND AREA) WTG EXPLORATION 16759 ROCKER "B" 10 PINK DRAW (ELLENBURGER) WTG EXPLORATION 16282 ROCKER "B" 14 PINK DRAW (FUSSELMAN) WTG EXPLORATION 16621 ROCKER "B" 22 ROCKER -B-, EAST (WOLFCAMP) WTG EXPLORATION 17104 ROCKER "B" 25 ROCKER -B-, EAST (WOLFCAMP) WTG EXPLORATION 17077 ROCKER "B" 32 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09679 ROCKER "B" 40 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 10013 ROCKER "B" 41 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 09725 ROCKER "B" 41-A SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 10125 ROCKER "B" 5 PINK DRAW (FUSSELMAN) WTG EXPLORATION 16637 ROCKER "B" 52 SLEDGEHAMMER (FUSSELMAN) WTG EXPLORATION 16241 ROCKER B -A- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 04475 ROCKER B -D- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 04537 ROCKER B -D- SPRABERRY (TREND AREA) PETRO-RAIDER LLC 06929 ROCKER B -E- SPRABERRY (TREND AREA) PETRO-RAIDER LLC 06940 ROCKER B -G- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 04559 ROCKER B -H- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 04586 ROCKER B -K- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 06422 ROCKER B -L- SPRABERRY (TREND AREA) PETRO-RAIDER LLC 07198 ROCKER B -M- SPRABERRY (TREND AREA) BILLS, L. T. 06484 ROCKER B -Q- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05289 ROCKER B -S- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 05396 ROCKER B -W- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 05464 ROCKER B -62- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 06400


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ROCKER B -64- B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16706 ROCKER B -82- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 06371 ROCKER B -83- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 06372 ROCKER B -84- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 06386 ROCKER B 'AE' UNIT LIN (WOLFCAMP) DISCOVERY NATURAL RESOURCES LLC 18128 ROCKER B 'AF' UNIT LIN (WOLFCAMP) DISCOVERY NATURAL RESOURCES LLC 18544 ROCKER B '12' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14638 ROCKER B '13' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14679 ROCKER B '14' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14636 ROCKER B '15' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14639 ROCKER B '17' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14665 ROCKER B '19' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14716 ROCKER B '20' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14706 ROCKER B '21' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14711 ROCKER B '22' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14765 ROCKER B "A" LIN (WOLFCAMP) DISCOVERY NATURAL RESOURCES LLC 17595 ROCKER B "A" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 06728 ROCKER B "B" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 06729 ROCKER B "BC" UNIT LIN (WOLFCAMP) DISCOVERY NATURAL RESOURCES LLC 17750 ROCKER B "C" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 06745 ROCKER B "F" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 06974 ROCKER B "G" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 06985 ROCKER B "I" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 07042 ROCKER B "J" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 06992 ROCKER B "K" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 07077 ROCKER B "O" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 07250 ROCKER B "R" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09023 ROCKER B "10" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17778 ROCKER B "117" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10265 ROCKER B "120" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10252 ROCKER B "14-105" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17697 ROCKER B "153" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10119 ROCKER B "18" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 14671 ROCKER B "2" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15026 ROCKER B "3048" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10785 ROCKER B "3048" A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 11375 ROCKER B "4" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15028 ROCKER B "5" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15029 ROCKER B "6" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15030 ROCKER B "67" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 15161 ROCKER B "7" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15031 ROCKER B "79" SRH (CLEAR FORK) PIONEER NATURAL RES. USA, INC. 13881 ROCKER B "8" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15032 ROCKER B AD UNIT LIN (WOLFCAMP) DISCOVERY NATURAL RESOURCES LLC 17711 ROCKER B JK SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04646 ROCKER B SRH SRH (CLEAR FORK) DISCOVERY NATURAL RESOURCES LLC 13819 ROCKER B ZACHRY A SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19050 ROCKER B ZACHRY C SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19011 ROCKER B ZACHRY R SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18933 ROCKER B ZACHRY S SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18924 ROCKER B 126 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11666


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ROCKER B 1949 ROCKER -B- (CANYON) DISCOVERY NATURAL RESOURCES LLC 17105 ROCKER B 20-21 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18677 ROCKER B 20-21 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19214 ROCKER B 20-21 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20706 ROCKER B 3034 LIN (WOLFCAMP) DISCOVERY NATURAL RESOURCES LLC 18264 ROCKER B 42 "A" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 11327 ROCKER B 80 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18292 ROCKER B 86 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17741 ROCKER B 87 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18352 ROCKER B--B- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 04449 ROCKER B-40 SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 09545 ROCKER-B "104" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10880 ROCKER-B "12" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 11105 ROCKER-B "17" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 11106 ROCKER-B "21" SPRABERRY (TREND AREA) DOMINION NATURAL RESOURCES LLC 11502 ROCKER-B "22" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10842 ROCKER-B "27" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10793 ROCKER-B "30A" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10839 ROCKER-B "43" SPRABERRY (TREND AREA) MINERAL TECHNOLOGIES, INC. 10403 ROCKER-B-31 SPRABERRY (TREND AREA) MINERAL TECHNOLOGIES, INC. 10327 ROCKER-B"25" SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 10841 ROCKER, B -A- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 06123 ROCKER, B -R- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05377 ROCKER, B "H" SPRABERRY (TREND AREA) PETRO-RAIDER LLC 07076 ROCKER, B. -D- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 06156 ROCKER, B. -N- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 05142 ROCKER, B.-U- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 05441 ROCKER, B., -O- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05172 ROCKER, B., -P- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05173 ROCKER, B., -T- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05416 ROCKY MILLSPAUGH RANCH (SAN ANDRES) XOG OPERATING LLC 15398 RODA SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14183 RODE SECO (STRAWN) HENNICO 07296 RODGERS WILDCAT OGL HOLDINGS, LLC 18186 RODGERS WINTERS (CAPPS) UPLAND RESOURCES LLC 17688 ROGERS NORA, EAST (GARDNER SAND) PLACE OIL AND GAS CO. 16526 ROGERS NORA, EAST (KING SAND) PLACE OIL AND GAS CO. 15088 ROGERS "35" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17659 ROGERS 3-40 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19290 ROGERS 35 SPRABERRY (TREND AREA) APACHE CORPORATION 17528 ROGERS, I. W. NORA (GARDNER SAND) DOROCO PETROLEUM 12178 ROGERS, U. E. TUCKMAR, SOUTH (3700 SAND) GRIFFIN PETROLEUM COMPANY 03548 RONALDINHO SPRABERRY (TREND AREA) KEY ENERGY SERVICES, LLC 17179 ROSA H. BARNETT "F" SPRABERRY (TREND AREA) HUNT OIL COMPANY 18144 ROSCOE BROWN 15 LIN (WOLFCAMP) FORELAND OPERATING, LLC 18668 ROSS SPRABERRY (TREND AREA) COG OPERATING LLC 16067 ROSS SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13210 ROSS "12" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17738 ROSS "48A" SPRABERRY (TREND AREA) COG OPERATING LLC 17471 ROSS 40 SPRABERRY (TREND AREA) APACHE CORPORATION 16760 ROSS, R.L. 116 SPRABERRY (TREND AREA) APACHE CORPORATION 17802


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ ROY OZONA (CLEAR FORK, UPPER) BEDROCK PRODUCTION, LLC 15333 ROY "A" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 12317 ROY "86" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 12177 ROY RAUCH GOEN LIME CONCHO OILFIELD SERV & OPER CO. 19088 ROY RAUCH PIPE DREAM (KING SAND) CONCHO OILFIELD SERV & OPER CO. 18519 ROYALE BALLINGER BALLINGER (PALO PINTO) IMPERATOR OPERATING, LLC 19169 ROYALE MOSELY WILDCAT OIL, GAS, ETC. LLC 19170 ROYE SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 07056 RS WINDHAM 128A SPRABERRY (TREND AREA) APACHE CORPORATION 19063 RUBY SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17134 RUHMAN, E. P. MIETHER (GRAYBURG) GOLDEN SPECIALTIES OIL & GAS 02422 RUHMANN, E. P. -A- MIETHER (GRAYBURG) GOLDEN SPECIALTIES OIL & GAS 03059 RUHMANN, E. P. "B" MIETHER (GRAYBURG) GOLDEN SPECIALTIES OIL & GAS 03970 RUNGE "B" P-C (STRAWN) DELFIN OPERATING, LLC 17582 RUSH, RAYMOND LEONARD (HOME CREEK) DELRAY OIL, INC. 13464 RUSH, RAYMOND LEONARD (2400) DELRAY OIL, INC. 08170 RUSH, RAYMOND LEONARD, NORTH (3460 SAND) DELRAY OIL, INC. 07600 RUSH, RAYMOND TALPA, SW. (DOG BEND) DELRAY OIL, INC. 08772 RUSH, RAYMOND "A" LEONARD, NORTH (3460 SAND) DELRAY OIL, INC. 11762 RUSSELL WILDCAT PAINT ROCK OPERATING, LLC 17272 RUSSELL DANNY MAE (LOWER CISCO "A") DELFIN OPERATING, LLC 17241 RUSSELL LITTLE DOG (CAMAR) DELFIN OPERATING, LLC 16977 RUSSELL P-C (STRAWN) DELFIN OPERATING, LLC 16986 RUSSELL HEIRS P-C, SW (STRAWN, LOWER) ALWAYS CONSULTING, INC. 16066 RUSSELL HEIRS SHAHEEN (HARKEY 3500) RUSSELL PRODUCING, LLC 14766 RUSSELL RANCH SHAHEEN (HARKEY 3500) RUSSELL PRODUCING, LLC 05372 RUSSELL-FRIEDRICK BSA (STRAWN SAND) MEXTEX OPERATING COMPANY 16697 RUSSELL-KAHLENBERG BALLINGER (PALO PINTO, N.) KAHLENBERG OIL AND GAS LLC 17893 RUSSELL, BARBARA ETAL SHAHEEN (HARKEY 3500) MEXTEX OPERATING COMPANY 15287 RUSSELL, LENA I. A. B. (PENN 5070) FDL OPERATING, LLC 03290 RUTH HARRIETT, S. (STRAWN LIME) GOLDEN OIL AND RANCH, LLC 14966 RUTH HARRIETT, S. (WOLFCAMP) LIPAN FLATS PRODUCTION, L.L.C. 15042 RUTH W.J.S. (CANYON) DISCOVERY OPERATING, INC. 12882 RUTH "A" W.J.S. (CANYON) DISCOVERY OPERATING, INC. 09582 RUTH C VELREX (HENDERSON UPPER) DISCOVERY OPERATING, INC. 15913 RYBURN, C.W. A/C 2 SPRABERRY (TREND AREA CL. FK.) ENDEAVOR ENERGY RESOURCES L.P. 07403 S & H LIVESTOCK PAINT ROCK, S. (GOEN LIME) CONCHO OILFIELD SERV & OPER CO. 15317 S & H LIVESTOCK PAINT ROCK, W. (GOEN D) CONCHO OILFIELD SERV & OPER CO. 15286 SAAM DORMAN, WEST (GOEN) CEDAR OIL COMPANY 20905 SAAM FENNELL (CAPPS) CEDAR OIL COMPANY 15747 SADLER SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17392 SALEWSKY, RAYMOND MILLERSVIEW, NORTH (SWASTIKA) CAPITAL EXPLORATION, INC. 15631 SALLIE ODOM "P" UNIT FORT CHADBOURNE, W. (GDNR. S) GRIZZLY OP OF DELAWARE, LLC 13731 SALLYE SPRABERRY (TREND AREA) COG OPERATING LLC 18237 SALMON WENDKIRK (CISCO) TCS PETROLEUM CO., LLC 06788 SALT HOUSE SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 16668 SALT HOUSE A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 16707 SAM '1' SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 18523 SAMANTHA SPRABERRY (TREND AREA) COG OPERATING LLC 16866 SAMMIE 47 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18749 SANDERS STATE SOUTHWEST MESA (WOLFCAMP) CUSTER & WRIGHT OPERATING, INC. 14514


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SANDY SPRABERRY (TREND AREA) SM ENERGY COMPANY 15651 SANDY KOUFAX 5 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19693 SANDY REXENE (SA) AA SPRABERRY (TREND AREA) SM ENERGY COMPANY 20209 SANDY REXENE (SA) R SPRABERRY (TREND AREA) SM ENERGY COMPANY 20262 SANGER -A- MCCAMEY XOG OPERATING LLC 00993 SANGER-BROTHERS MCCAMEY XOG OPERATING LLC 00874 SANGER-KATLACO SPRABERRY (TREND AREA) BARON ENERGY INC. 11501 SANGER-KATLACO (B) SPRABERRY (TREND AREA) BARON ENERGY INC. 11854 SANTA ANNA STATE SPRABERRY (TREND AREA) ARCH OIL & GAS, LLC 15247 SANTA FE BOULWARE UNIT H-J (STRAWN) GRIZZLY OP OF DELAWARE, LLC 03434 SANTA FE BOULWARE UNIT 2 H-J (STRAWN) GRIZZLY OP OF DELAWARE, LLC 03640 SANTA RITA "6" STATE SPRABERRY (TREND AREA) ARCH OIL & GAS, LLC 15054 SANTA RITA UNIVERSITY 9-35 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 17521 SAPP-DEAN H.T. MCCAMEY TRIPP & SONS, LLC 00985 SAPP, H. T. MCCAMEY TRIPP & SONS, LLC 00930 SAPP, H. T. -A- MCCAMEY XOG OPERATING LLC 00851 SAPPHIRE POE (GOEN SAND) GOLDEN OIL AND RANCH, LLC 17646 SAPPHIRE POE (REEF) GOLDEN OIL AND RANCH, LLC 18650 SAPPHIRE 'A' POE (GOEN SAND) GOLDEN OIL AND RANCH, LLC 18109 SARAH SPRABERRY (TREND AREA) COG OPERATING LLC 16533 SARAH 'A' SPRABERRY (TREND AREA) SM ENERGY COMPANY 16521 SARAH 27 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18759 SATTC WILDCAT C&J ENERGY SERVICES 18101 SAU MARINER 1-4C SPRABERRY (TREND AREA) APACHE CORPORATION 15833 SAU MARINER 15 SPRABERRY (TREND AREA) APACHE CORPORATION 16085 SAU MARINER 15-2 SPRABERRY (TREND AREA) APACHE CORPORATION 15666 SAU MARINER 15-2B SPRABERRY (TREND AREA) APACHE CORPORATION 15673 SAU MARINER 17-1B SPRABERRY (TREND AREA) APACHE CORPORATION 15760 SAU MARINER 20-1 SPRABERRY (TREND AREA) APACHE CORPORATION 14806 SAU MARINER 20-3A SPRABERRY (TREND AREA) APACHE CORPORATION 16032 SAU MARINER 20-4 SPRABERRY (TREND AREA) APACHE CORPORATION 16043 SAU MARINER 24-2 SPRABERRY (TREND AREA) APACHE CORPORATION 16029 SAU MARINER 28-3B SPRABERRY (TREND AREA) APACHE CORPORATION 15533 SAU MARINER 28-4B SPRABERRY (TREND AREA) APACHE CORPORATION 15979 SAU MARINER 29 SPRABERRY (TREND AREA) APACHE CORPORATION 13002 SAU MARINER 29-2 SPRABERRY (TREND AREA) APACHE CORPORATION 15821 SAU MARINER 29-2A SPRABERRY (TREND AREA) APACHE CORPORATION 16333 SAU MARINER 29-3 SPRABERRY (TREND AREA) APACHE CORPORATION 15751 SAU MARINER 29-3B SPRABERRY (TREND AREA) APACHE CORPORATION 15753 SAU MARINER 29-4A SPRABERRY (TREND AREA) APACHE CORPORATION 15690 SAU MARINER 29-4B SPRABERRY (TREND AREA) APACHE CORPORATION 15998 SAU MARINER 30-1 SPRABERRY (TREND AREA) APACHE CORPORATION 16322 SAU MARINER 30-2 SPRABERRY (TREND AREA) APACHE CORPORATION 15686 SAU MARINER 30-3 SPRABERRY (TREND AREA) APACHE CORPORATION 16321 SAU MARINER 30-4A SPRABERRY (TREND AREA) APACHE CORPORATION 15736 SAU MARINER 31-2 SPRABERRY (TREND AREA) APACHE CORPORATION 15697 SAU MARINER 31-4 SPRABERRY (TREND AREA) APACHE CORPORATION 16271 SAU MARINER 32-1B SPRABERRY (TREND AREA) APACHE CORPORATION 15640 SAU MARINER 36-1 SPRABERRY (TREND AREA) APACHE CORPORATION 16464 SAU MARINER 36-2 SPRABERRY (TREND AREA) APACHE CORPORATION 16463 SAU MARINER 4-4B SPRABERRY (TREND AREA) APACHE CORPORATION 15641


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SAU MARINER 4-5 SPRABERRY (TREND AREA) APACHE CORPORATION 15550 SAU MARINER 4-5A SPRABERRY (TREND AREA) APACHE CORPORATION 15769 SAU MARINER 4-6 SPRABERRY (TREND AREA) APACHE CORPORATION 15549 SAU MARINER 40-1B SPRABERRY (TREND AREA) APACHE CORPORATION 15532 SAU MARINER 40-2A SPRABERRY (TREND AREA) APACHE CORPORATION 15537 SAU MARINER 40-3 SPRABERRY (TREND AREA) APACHE CORPORATION 15540 SAU MARINER 40-3A SPRABERRY (TREND AREA) APACHE CORPORATION 15646 SAU MARINER 41-1A SPRABERRY (TREND AREA) APACHE CORPORATION 15649 SAU MARINER 41-2B SPRABERRY (TREND AREA) APACHE CORPORATION 15656 SAU MARINER 41-4 SPRABERRY (TREND AREA) APACHE CORPORATION 15531 SAU MARINER 42-2 SPRABERRY (TREND AREA) APACHE CORPORATION 15978 SAU MARINER 42-2A SPRABERRY (TREND AREA) APACHE CORPORATION 15967 SAU MARINER 42-2B SPRABERRY (TREND AREA) APACHE CORPORATION 16005 SAU MARINER 43 SPRABERRY (TREND AREA) APACHE CORPORATION 12828 SAU MARINER 43-4A SPRABERRY (TREND AREA) APACHE CORPORATION 15965 SAU MARINER 43-5 SPRABERRY (TREND AREA) APACHE CORPORATION 16854 SAU MARINER 45 SPRABERRY (TREND AREA) APACHE CORPORATION 12391 SAU MARINER 45-2 SPRABERRY (TREND AREA) APACHE CORPORATION 15638 SAU MARINER 45-3A SPRABERRY (TREND AREA) APACHE CORPORATION 15648 SAU MARINER 6H-2 SPRABERRY (TREND AREA) APACHE CORPORATION 16822 SAU MARINER 7-2C SPRABERRY (TREND AREA) APACHE CORPORATION 15635 SAU MARINER 7-4B SPRABERRY (TREND AREA) APACHE CORPORATION 15543 SAU 1-1 SPRABERRY (TREND AREA) APACHE CORPORATION 12853 SAU 1-2 SPRABERRY (TREND AREA) APACHE CORPORATION 13130 SAU 1-3 SPRABERRY (TREND AREA) APACHE CORPORATION 12970 SAU 11 SPRABERRY (TREND AREA) APACHE CORPORATION 12934 SAU 11-1 SPRABERRY (TREND AREA) APACHE CORPORATION 18154 SAU 11-2 SPRABERRY (TREND AREA) APACHE CORPORATION 13462 SAU 11-3 SPRABERRY (TREND AREA) APACHE CORPORATION 18153 SAU 12 SPRABERRY (TREND AREA) APACHE CORPORATION 12910 SAU 12-2 SPRABERRY (TREND AREA) APACHE CORPORATION 13471 SAU 12-3 SPRABERRY (TREND AREA) APACHE CORPORATION 13481 SAU 12-4 SPRABERRY (TREND AREA) APACHE CORPORATION 13474 SAU 17-1 SPRABERRY (TREND AREA) APACHE CORPORATION 12850 SAU 17-2 SPRABERRY (TREND AREA) APACHE CORPORATION 12982 SAU 17-3 SPRABERRY (TREND AREA) APACHE CORPORATION 13216 SAU 17-4 SPRABERRY (TREND AREA) APACHE CORPORATION 12996 SAU 18-1 SPRABERRY (TREND AREA) APACHE CORPORATION 14779 SAU 18-2 SPRABERRY (TREND AREA) APACHE CORPORATION 13167 SAU 18-2A SPRABERRY (TREND AREA) APACHE CORPORATION 15467 SAU 18-3 SPRABERRY (TREND AREA) APACHE CORPORATION 15443 SAU 18-4 SPRABERRY (TREND AREA) APACHE CORPORATION 15375 SAU 18-4A SPRABERRY (TREND AREA) APACHE CORPORATION 15451 SAU 19-1A SPRABERRY (TREND AREA) APACHE CORPORATION 15354 SAU 19-2 SPRABERRY (TREND AREA) APACHE CORPORATION 14562 SAU 19-3 SPRABERRY (TREND AREA) APACHE CORPORATION 14784 SAU 2 SPRABERRY (TREND AREA) APACHE CORPORATION 18312 SAU 2-1 SPRABERRY (TREND AREA) APACHE CORPORATION 13546 SAU 20-2 SPRABERRY (TREND AREA) APACHE CORPORATION 14807 SAU 20-3 SPRABERRY (TREND AREA) APACHE CORPORATION 16059 SAU 21-1A SPRABERRY (TREND AREA) APACHE CORPORATION 15351


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SAU 21-2 SPRABERRY (TREND AREA) APACHE CORPORATION 14805 SAU 21-3 SPRABERRY (TREND AREA) APACHE CORPORATION 13540 SAU 21-4 SPRABERRY (TREND AREA) APACHE CORPORATION 14546 SAU 25 SPRABERRY (TREND AREA) APACHE CORPORATION 12390 SAU 25-2 SPRABERRY (TREND AREA) APACHE CORPORATION 13392 SAU 28-1 SPRABERRY (TREND AREA) APACHE CORPORATION 13153 SAU 28-2 SPRABERRY (TREND AREA) APACHE CORPORATION 13146 SAU 28-3 SPRABERRY (TREND AREA) APACHE CORPORATION 14537 SAU 28-4 SPRABERRY (TREND AREA) APACHE CORPORATION 14552 SAU 31-1 SPRABERRY (TREND AREA) APACHE CORPORATION 16862 SAU 31-3 SPRABERRY (TREND AREA) APACHE CORPORATION 12944 SAU 32-1A SPRABERRY (TREND AREA) APACHE CORPORATION 15428 SAU 32-2A SPRABERRY (TREND AREA) APACHE CORPORATION 15407 SAU 32-3 SPRABERRY (TREND AREA) APACHE CORPORATION 16594 SAU 32-4 SPRABERRY (TREND AREA) APACHE CORPORATION 16585 SAU 33-1 SPRABERRY (TREND AREA) APACHE CORPORATION 13156 SAU 33-2 SPRABERRY (TREND AREA) APACHE CORPORATION 14754 SAU 33-3 SPRABERRY (TREND AREA) APACHE CORPORATION 14536 SAU 33-4 SPRABERRY (TREND AREA) APACHE CORPORATION 14762 SAU 4 SPRABERRY (TREND AREA) APACHE CORPORATION 15329 SAU 4-1 SPRABERRY (TREND AREA) APACHE CORPORATION 15371 SAU 4-5 SPRABERRY (TREND AREA) APACHE CORPORATION 18682 SAU 40-1A SPRABERRY (TREND AREA) APACHE CORPORATION 15404 SAU 40-2 SPRABERRY (TREND AREA) APACHE CORPORATION 13138 SAU 40-4 SPRABERRY (TREND AREA) APACHE CORPORATION 16632 SAU 41-1 SPRABERRY (TREND AREA) APACHE CORPORATION 12952 SAU 41-2 SPRABERRY (TREND AREA) APACHE CORPORATION 13510 SAU 41-3 SPRABERRY (TREND AREA) APACHE CORPORATION 15513 SAU 42 SPRABERRY (TREND AREA) APACHE CORPORATION 12895 SAU 42-4 SPRABERRY (TREND AREA) APACHE CORPORATION 13534 SAU 43 SPRABERRY (TREND AREA) APACHE CORPORATION 18676 SAU 44 SPRABERRY (TREND AREA) APACHE CORPORATION 12348 SAU 45 SPRABERRY (TREND AREA) APACHE CORPORATION 17782 SAU 45-2A SPRABERRY (TREND AREA) APACHE CORPORATION 15389 SAU 45-3 SPRABERRY (TREND AREA) APACHE CORPORATION 15529 SAU 5 SPRABERRY (TREND AREA) APACHE CORPORATION 12324 SAU 6 SPRABERRY (TREND AREA) APACHE CORPORATION 12402 SAU 6-2A SPRABERRY (TREND AREA) APACHE CORPORATION 15446 SAU 6-3A SPRABERRY (TREND AREA) APACHE CORPORATION 15514 SAU 6-4 SPRABERRY (TREND AREA) APACHE CORPORATION 16669 SAU 6H-1 SPRABERRY (TREND AREA) APACHE CORPORATION 13477 SAU 7 SPRABERRY (TREND AREA) APACHE CORPORATION 12367 SAU 7-1A SPRABERRY (TREND AREA) APACHE CORPORATION 15522 SAU 7-3 SPRABERRY (TREND AREA) APACHE CORPORATION 13507 SAU 7-4 SPRABERRY (TREND AREA) APACHE CORPORATION 15465 SAU 8 SPRABERRY (TREND AREA) APACHE CORPORATION 12378 SAU 9 SPRABERRY (TREND AREA) APACHE CORPORATION 12484 SAU 9-3 SPRABERRY (TREND AREA) APACHE CORPORATION 15468 SAUNDERS SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08770 SAWYER ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 09591 SB & TG #10-13 SIMPSON HOOVER PETROLEUM COMPANY, LLC 10017


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SB & TG #15-#22 SIMPSON HOOVER PETROLEUM COMPANY, LLC 12221 SB & TG "03" SIMPSON BRODY OIL & GAS SERVICES, INC. 10292 SB & TG "18" SIMPSON HOOVER PETROLEUM COMPANY, LLC 10139 SB & TG "21" SIMPSON RICH OIL AND GAS INC. 10312 SB & TG "24-25" SIMPSON HOOVER PETROLEUM COMPANY, LLC 10138 SCHAEFER NORTON, N. (CAPPS) HOPEWELL OPERATING, INC. 14844 SCHAEFER-A- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 15368 SCHAEFER, C. E. SR. SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06172 SCHAEFER, ROY BUSHER (MORRIS) SPH DEVELOPMENT, LLC 13384 SCHAEFER, ROY A BUSHER (MORRIS) SPH DEVELOPMENT, LLC 13572 SCHAFER PAGE, WEST (WOLFCAMP) BSP OPERATING, LLC 18305 SCHELLHORN "B" MIETHER (GRAYBURG) XOG OPERATING LLC 10721 SCHELLHORN "D" MIETHER (GRAYBURG) XOG OPERATING LLC 10502 SCHLINKE SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17851 SCHLINKE "18" PROBANDT (CANYON) PIONEER NATURAL RES. USA, INC. 16042 SCHLINKE A SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17841 SCHNIERS SCHNIERS FORTUNE ENERGY, INC. 11370 SCHREIBER, HAROLD SPECK, SO. (KING SD.) CONCHO OILFIELD SERV & OPER CO. 12819 SCHUCH SCHUCH (CADDO LIME) D&S OIL AND GAS PROPERTIES 08891 SCHUCH "B" SCHUCH (CADDO LIME) BYRD OPERATING COMPANY 14688 SCHUCH 5 ELIZA BAKER (STRAWN) BYRD OPERATING COMPANY 18482 SCHULTZ, ALBERT SPRABERRY (TREND AREA) BRP ENERGY, LLC 14029 SCHWARTZ SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06167 SCHWARTZ -A- SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06718 SCHWARTZ -TG- JOHN SCOTT (GRAYBURG) MICHAELSON PRODUCING COMPANY 03552 SCHWARTZ 91 POOLED UNIT LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18294 SCHWERTNER JIMMIE (CROSS CUT) ENRICH OIL CORPORATION 16597 SCHWERTNER, C. J. DICK RICHARDSON (GOEN) F & S PETROLEUM, L.L.C. 15857 SCHWERTNER, C.J. BALLINGER (PALO PINTO) UPSTREAM PROPERTIES, LLC 13815 SCHWINN 5280 SWD SPRABERRY (TREND AREA) SCHWINN 5280 ENERGY, LLC 19172 SCOTT COW KILLER (GOEN) CONCHO OILFIELD SERV & OPER CO. 17476 SCOTT JOHN SCOTT (GRAYBURG) MICHAELSON PRODUCING COMPANY 09377 SCOTT JOHN SCOTT (GRAYBURG) MILTEX OIL COMPANY 09966 SCOTT JOHN SCOTT (GRAYBURG) RANDA OPERATING, INC. 08381 SCOTT SPRABERRY (TREND AREA) PERMIAN SOLUTIONS LLC 10920 SCOTT -A- JOHN SCOTT (GRAYBURG) RANDA OPERATING, INC. 08779 SCOTT -A- SPRABERRY (TREND AREA) BNN SOUTH TEXAS, LLC 17403 SCOTT -B- JOHN SCOTT (GRAYBURG) RANDA OPERATING, INC. 08759 SCOTT -C- JOHN SCOTT (GRAYBURG) RANDA OPERATING, INC. 08767 SCOTT '32' HOWDA (SAN ANDRES) APACHE CORPORATION 14355 SCOTT "A-B" JOHN SCOTT (GRAYBURG) MICHAELSON PRODUCING COMPANY 10627 SCOTT "A" KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 13623 SCOTT "C" JOHN SCOTT (GRAYBURG) MICHAELSON PRODUCING COMPANY 12351 SCOTT "34" KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 13699 SCOTT RANCH SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17777 SCOTT RANCH A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17819 SCOTT SUGG NE UNIT LIN (WOLFCAMP) APACHE CORPORATION 18662 SCOTT SUGG SE UNIT LIN (WOLFCAMP) APACHE CORPORATION 18610 SCOTT SUGG WEST UNIT LIN (WOLFCAMP) APACHE CORPORATION 18614 SCOTT SUGG 0504 LIN (WOLFCAMP) APACHE CORPORATION 18518 SCOTT SUGG 1110 LIN (WOLFCAMP) APACHE CORPORATION 18187


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SCOTT SUGG 1213 LIN (WOLFCAMP) APACHE CORPORATION 18185 SCOTT SUGG 2726 LIN (WOLFCAMP) APACHE CORPORATION 18525 SCOTT SUGG 3332 LIN (WOLFCAMP) APACHE CORPORATION 18524 SCOTT SUGG 5051 EAST LIN (WOLFCAMP) APACHE CORPORATION 18431 SCOTT SUGG 5554 LIN (WOLFCAMP) APACHE CORPORATION 18517 SCOTT SUGG 5657 LIN (WOLFCAMP) APACHE CORPORATION 18531 SCOTT 178 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 16548 SCOTT 32 LIN (WOLFCAMP) APACHE CORPORATION 18382 SCOTT 54 LIN (WOLFCAMP) APACHE CORPORATION 18306 SCOTT-SUGG 5051 LIN (WOLFCAMP) APACHE CORPORATION 18127 SCOTT, J. R. -A- SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 07028 SCOTT, J. R. "58" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 07489 SCOTT, J. R. EST. SPRABERRY (TREND AREA) PRASAD, HARI PRODUCTION CO. 08192 SCOTT, J. R. ESTATE "A-56" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 08026 SCOTT, J. R. ESTATE "24" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 08158 SCOTT, J. R. ESTATE "72" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 07981 SCOTT, J. R. ESTATE "74" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 08057 SCOTT, J.R. "A" 36 SPRABERRY (TREND AREA) BASA RESOURCES, INC. 07036 SCOTT, J.R. "58-B" HOWDA (SAN ANDRES) BASA RESOURCES, INC. 13639 SCOTT, J.R. "70" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 07401 SCOTT, J.R. ESTATE "A-54" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 08235 SCOTT, J.R. ESTATE "54" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 08614 SCOTT, J.R. ESTATE "56" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 08613 SCOTT, JOHN JOHN SCOTT (GRAYBURG) DISCOVERY NATURAL RESOURCES LLC 04739 SCOTT, JOHN R. JOHN SCOTT (GRAYBURG) DARCO OPERATORS 00791 SCOTT, JOHN R. JOHN SCOTT (GRAYBURG) RANDA OPERATING, INC. 03826 SCOTT, JOHN R. SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06214 SCOTT, JOHN R. SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05542 SCOTT, JOHN R. -C- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06379 SCOTT,JOHN R.-B- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06337 SCOTTISH RITE PINK DRAW (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 12592 SCOTTISH RITE "31" PINK DRAW (ELLENBURGER) DISCOVERY NATURAL RESOURCES LLC 15318 SCOTTISH RITE "31" PINK DRAW (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 16702 SCOTTISH RITE "32" PINK DRAW (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 15312 SCULL -5-A- SIMPSON HOOVER PETROLEUM COMPANY, LLC 07863 SCULL -5-B- SIMPSON HOOVER PETROLEUM COMPANY, LLC 07864 SCULL 5-E SIMPSON HOOVER PETROLEUM COMPANY, LLC 08238 SCULL 5D SIMPSON HOOVER PETROLEUM COMPANY, LLC 07931 SCULL 5F SIMPSON HOOVER PETROLEUM COMPANY, LLC 07929 SCULL 5J SIMPSON HOOVER PETROLEUM COMPANY, LLC 07932 SCULL 5K SIMPSON HOOVER PETROLEUM COMPANY, LLC 08017 SCULL 5N SIMPSON HOOVER PETROLEUM COMPANY, LLC 11094 SCULL 7 SIMPSON HOOVER PETROLEUM COMPANY, LLC 08360 SEAN "29" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15767 SEBASTIAN (19-30A) SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19718 SEBASTIAN *19-30A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20008 SEBASTIAN '19-30A' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19721 SEBASTIAN 19 & 30A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19982 SEBASTIAN 19 AND 30A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19716 SEBASTIAN 19-18-A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20190 SEBASTIAN 19-18-H SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20079


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SEBASTIAN 19-30A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19714 SECTION 209 SWD LIN (WOLFCAMP) PILOT WATER SOLUTIONS PERMIANLLC 20643 SECTION 235-220 ALLOC 00 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20365 SECTION 235-220 ALLOC 01 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20355 SECTION 235-220 ALLOC 01 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20783 SECTION 235-220 ALLOC 02 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20922 SECTION 235-220 ALLOC 03 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20357 SECTION 235-220 ALLOC 03 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20769 SECTION 235-220 ALLOC 04 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20466 SECTION 235-220 ALLOC 04 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20857 SECTION 235-220 ALLOC 05 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20353 SECTION 235-220 ALLOC 05 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20770 SECTION 235-220 ALLOC 06 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20331 SECTION 235-220 ALLOC 07 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20346 SECTION 235-220 ALLOC 07 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20784 SECTION 235-220 ALLOC 08 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20785 SECTION 235-220 ALLOC 09 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20325 SECTION 235-220 ALLOC 09 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20829 SECTION 235-220 ALLOC 10 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20326 SECTION 235-220 ALLOC 11 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20328 SEQUOIA SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 20251 SH EAGLE 21 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08570 SH FRANKLIN 22A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08812 SHACKELFORD "7" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17329 SHACKELFORD 7-6A-A SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20279 SHANNAM SHANNON (SAN ANDRES) CLARK OIL CO. 10641 SHANNAM #3 SHANNON (SAN ANDRES) CLARK OIL CO. 14891 SHANNON ESCONDIDO (FUSSELMAN) INCLINE ENERGY 11787 SHANNON SHANNON (SAN ANDRES) ARTIFEX ENERGY INC 12312 SHANNON TODD (SAN ANDRES) O'RYAN OIL AND GAS 13816 SHANNON TODD, DEEP (ELLENBURGER) O'RYAN OIL AND GAS 02019 SHANNON - 18A VAUGHN (QUEEN) PENERGY 06807 SHANNON -A- VAUGHN CONSOLIDATED VANCO OIL & GAS CORP. 19126 SHANNON -B- ESCONDIDO (FUSSELMAN) MARM OIL COMPANY 10475 SHANNON -D- VAUGHN (QUEEN) PENERGY 07086 SHANNON -F- WORLD, WEST (STRAWN) PARALLEL PETROLEUM LLC 06498 SHANNON -T- VAUGHN SAGA PETROLEUM LLC OF COLORADO 02071 SHANNON -T- VAUGHN CONSOLIDATED VANCO OIL & GAS CORP. 19127 SHANNON -17- VAUGHN (QUEEN) LANDRICK O & G OPERATING, LLC 06055 SHANNON -18- VAUGHN (QUEEN) VANCO OIL & GAS CORP. 05990 SHANNON "A" FLAT IRON (STRAWN) DEWEY PETROLEUM 10608 SHANNON "B" WESLAW (QUEEN, LO.) VANCO OIL & GAS CORP. 08244 SHANNON "D" VAUGHN PENERGY 12937 SHANNON "12" TODD (SAN ANDRES) KINDRED PETROLEUM COMPANY 16377 SHANNON "4" VAUGHN VANCO OIL & GAS CORP. 12243 SHANNON "4" VAUGHN (QUEEN) PENERGY 05950 SHANNON DEE NOELKE, SOUTHEAST (QUEEN) CARDONA, LLC 10002 SHANNON EST. -3- NOELKE, SOUTHEAST (QUEEN) PETRO-SMITH OPERATING LLC 18182 SHANNON ESTATE NOELKE (WOLFCAMP, LOWER) SMITH ENERGY OPERATING COMPANY 20420 SHANNON ESTATE NOELKE (WOLFCAMP, LOWER) TREK RESOURCES, INC. 15812 SHANNON ESTATE OLSON ASPEN OPERATING COMPANY, L.L.C. 01138


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SHANNON ESTATE SHANNON (SAN ANDRES) CLARK OIL CO. 01275 SHANNON ESTATE -B- SHANNON (SAN ANDRES) CLARK OIL CO. 01277 SHANNON ESTATE "A" CONDO (ELLENBURGER) EPIC PERMIAN OPERATING, LLC 10736 SHANNON ESTATE "A" CONDO (PERMO PENN DETRITAL) EPIC PERMIAN OPERATING, LLC 13695 SHANNON ESTATE "A" DONHAM (GRAYBURG) TAURUS OPERATING, INC. 07161 SHANNON ESTATE "AC" VAUGHN VANCO OIL & GAS CORP. 12607 SHANNON ESTATE "B" CONDO (GRAYBURG) JADE PRODUCERS 12200 SHANNON ESTATE "B" SHANNON CLARK OIL CO. 13548 SHANNON ESTATE "1" ESCONDIDO (STRAWN UPPER) EPIC PERMIAN OPERATING, LLC 12466 SHANNON ESTATE "37" CONDO (LEONARD) UNIT PETROLEUM COMPANY 10579 SHANNON ESTATE A NOELKE (WOLFCAMP, LOWER) BOYD & MCWILLIAMS ENERGY GROUP 17508 SHANNON ESTATE B CONDO (ELLENBURGER) EPIC PERMIAN OPERATING, LLC 10945 SHANNON ESTATE BB SHANNON, NE (ELLENBURGER) APPROACH OPERATING LLC 19459 SHANNON ESTATE BB SPRABERRY (TREND AREA) APPROACH OPERATING LLC 19219 SHANNON ESTATE JC SHANNON, NE (ELLENBURGER) APPROACH OPERATING LLC 19695 SHANNON ESTATE NE WILDCAT APPROACH OPERATING LLC 20144 SHANNON ESTATE NE SPRABERRY (TREND AREA) APPROACH OPERATING LLC 19052 SHANNON ESTATE NOELKE SE NOELKE, SOUTHEAST (QUEEN) GREEN CENTURY EXP & PROD, LLC 18373 SHANNON ESTATE UV-17 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18680 SHANNON ESTATE UV-17 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20611 SHANNON ESTATE 01-21 WOLFPACK (WOLFCAMP) EPIC PERMIAN OPERATING, LLC 18320 SHANNON HOSPITAL PIKES PEAK DRAW (ELLENBURGER) REMUDA OPERATING COMPANY 11184 SHANNON HOSPITAL -F- TODD (SAN ANDRES) OVERTON PARK OIL & GAS LP 04553 SHANNON HOSPITAL "1" NOELKE (WOLFCAMP, LOWER) AVAD OPERATING, LLC 16026 SHANNON HOSPITAL "2" NOELKE (WOLFCAMP, LOWER) AVAD OPERATING, LLC 15792 SHANNON HOSPITAL A 4 NOELKE (WOLFCAMP, LOWER) AVAD OPERATING, LLC 16556 SHANNON HOSPITAL A 4 NCT1 NOELKE (WOLFCAMP, LOWER) AVAD OPERATING, LLC 16617 SHANNON HOSPITAL 1 NOELKE (WOLFCAMP, LOWER) STONE CREEK OPERATING, LLC 20753 SHANNON HOSPITAL 18 SHANNON HOSPITAL (STRAWN) SBJ OIL & GAS, LLC 15208 SHANNON HOSPITAL 4 #3 UNIT NOELKE (WOLFCAMP, LOWER) AVAD OPERATING, LLC 15783 SHANNON T VAUGHN (QUEEN) VANCO OIL & GAS CORP. 07139 SHANNON WATERFLOOD UNIT SHANNON (SAN ANDRES) CLARK OIL CO. 17487 SHANNON 10-19 TODD (STRAWN) SBJ OIL & GAS, LLC 15545 SHANNON 12-A TODD, NORTH (SAN ANDRES) KIDD JOHNSON OIL & GAS, LLC 12433 SHANNON 2 VAUGHN, N. (ELLENBURGER) THOMPSON, J. CLEO 15162 SHANNON 39 ELKHORN (ELLENBURGER, WEST) THOMPSON, J. CLEO 15466 SHANNON 40 ELKHORN (ELLENBURGER, WEST) THOMPSON, J. CLEO 15464 SHANNON-DYCO SHANNON (SAN ANDRES) CLARK OIL CO. 01274 SHANNON-PHILLIPS SHANNON (SAN ANDRES) CLARK OIL CO. 11913 SHANNON, J. M. -A- ELKHORN (ELLENBURGER) BOAZ ENERGY II OPERATING, LLC 00435 SHANNON, J. M. -A- VAUGHN KDM PRODUCTION CO 02062 SHANNON, J. M. -A- VAUGHN CONSOLIDATED KDM PRODUCTION CO 19136 SHANNON, J. M. -B- VAUGHN (QUEEN) VANCO OIL & GAS CORP. 07087 SHANNON, J. M. -D- ELKHORN (ELLENBURGER) PLATINUM EXPLORATION INC. 00436 SHANNON, J. M. -1- ESCONDIDO (PENN, LOWER) EPIC PERMIAN OPERATING, LLC 04226 SHANNON, J. M. -1- ESCONDIDO (STRAWN UPPER) EPIC PERMIAN OPERATING, LLC 05963 SHANNON, J. M. EST. -B- VAUGHN VANCO OIL & GAS CORP. 02052 SHANNON, J. M. EST. -C- VAUGHN PENERGY 02069 SHANNON, J. M. EST. "E" SHANNON (SAN ANDRES) ARTIFEX ENERGY INC 12284 SHANNON, J. M. ESTATE -A- VAUGHN SAGA PETROLEUM LLC OF COLORADO 02051 SHANNON, J. M. ESTATE -A- VAUGHN CONSOLIDATED VANCO OIL & GAS CORP. 19093


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SHANNON, J. M. ESTATE -C- SHANNON CLARK OIL CO. 16640 SHANNON, J. M. ESTATE -D- SHANNON (SAN ANDRES) CLARK OIL CO. 03607 SHANNON, J. M. 3 WORLD UNITEX OIL & GAS, L.L.C. 02238 SHANNON, J. M., ESTATE -D- SHANNON (SAN ANDRES) RSK OIL COMPANY 02964 SHANNON, J.M. A LIN (WOLFCAMP) BOAZ ENERGY II OPERATING, LLC 18236 SHANNON, M. A. EST. VAUGHN SAGA PETROLEUM LLC OF COLORADO 02066 SHANNON, M. A. EST. VAUGHN CONSOLIDATED VANCO OIL & GAS CORP. 19128 SHANNONESTATE ETAL -K- VAUGHN CONSOLIDATED KDM PRODUCTION CO 19135 SHAQ I 38-14 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20932 SHAQ K 38-14 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20929 SHAQ L 38-14 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20933 SHAQ M 38-14 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20930 SHAQ O 38-14 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20931 SHAUNA '9-16-16A' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19188 SHAUNA 9 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08639 SHAUNA 9-16-16A SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18966 SHAW SPRABERRY (TREND AREA) APACHE CORPORATION 08907 SHAW "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12638 SHAW "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12634 SHAW, VERDA SIXTY-SEVEN (CANYON) OXY USA INC. 05275 SHAYNE AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 15307 SHEAN "10A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20742 SHEEN FORT MCKAVITT (LIME 4270) BOAZ ENERGY II OPERATING, LLC 04433 SHEEN '8B' ANDREW A (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 17760 SHEEN "10" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20731 SHEEN "10" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16675 SHEEN "10A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17704 SHEEN "3061" ANDREW A. (CANYON) ARES ENERGY, LTD. 11270 SHEEN "8" ANDREW A. (CANYON) CARAWAY OPERATING CO. 14669 SHEEN "8" LONE EAGLE (CLEARFORK) CARAWAY OPERATING CO. 16309 SHEEN "8" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20725 SHEEN "8" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16305 SHEEN "8A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20743 SHEEN "8A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17691 SHEEN "8B" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17649 SHEEN BROS. -A- FORT MCKAVITT (CANYON) BOAZ ENERGY II OPERATING, LLC 13128 SHEEN 11 ANDREW A. (CANYON) MEADCO PROPERTIES 13785 SHEEP MOUNTAIN/VANDEVANTER SHEEP MOUNTAIN (CONSOLIDATED) MCDONNOLD OPERATING, INC. 16147 SHEEPSHEAD WILDCAT CHI OPERATING, INC. 16013 SHEEPSHEAD BENEDUM (SPRABERRY) HIBERNIA RESOURCES III, LLC 16730 SHELBIE S SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18219 SHELBYLYNN OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 18631 SHELL UNIVERSITY "B" BENEDUM (FUSSELMAN) HIBERNIA RESOURCES III, LLC 10831 SHELL-MCMASTERS SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04712 SHELTON FROG POND CREEK (COOK SAND) CONCHO OILFIELD SERV & OPER CO. 16048 SHELTON HALL RANCH (CANYON D) CONCHO OILFIELD SERV & OPER CO. 17318 SHELTON NEW YEAR '95 (GOEN "C") CONCHO OILFIELD SERV & OPER CO. 13792 SHEPARD, C. L. BALLINGER (PALO PINTO, N.) OIL, GAS, ETC. LLC 07376 SHERIFF JUSTICE A SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20898 SHERIFF JUSTICE B SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20923 SHERIFF JUSTICE C SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20899


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SHERROD UNIT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04947 SHERROD 16-0901 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20077 SHERROD 16-0902 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20078 SHERROD 16-0903 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 19980 SHERROD 16-0904 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20081 SHERROD 16-0912 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20104 SHERROD 16-0913 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20080 SHERROD 16-0914 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20085 SHERROD 16-0951 SPRABERRY (TREND AREA) R 40 EXC XTO ENERGY INC. 20033 SHIRK AMACKER-TIPPETT, SW (WOLFCAMP) PECOS OPERATING COMPANY, LLC 13230 SHIRK SHIRK (GRAYBURG) PHARAOH OIL & GAS, INC. 03267 SHIRK -A- SHIRK (GRAYBURG) PHARAOH OIL & GAS, INC. 02492 SHIRK "1" SPRABERRY (TREND AREA) PETROPLEX ENERGY INC. 17620 SHIRK "1" TRIUMPH (WOLFCAMP) PETROPLEX ENERGY INC. 13889 SHIRK ESTATE FRADEAN (DEVONIAN) APV MCCAMEY LLC 07205 SHIRK, ELLEN MCCAMEY PHARAOH OIL & GAS, INC. 00926 SHIRK, J. H. -A- FRADEAN (STRAWN) APV MCCAMEY LLC 06926 SHIRK, J. H. -F- MCCAMEY (DEVONIAN) XOG OPERATING LLC 17015 SHIRK, J. H. EST. KING MOUNTAIN, SE. (BEND) ENDEAVOR ENERGY RESOURCES L.P. 12093 SHIRK, J. H., -B- SHIRK (GRAYBURG) PHARAOH OIL & GAS, INC. 03453 SHIRK, J. H., EST. FRADEAN (STRAWN) BAYLOR OPERATING, LLC 03334 SHIRK, J.H. -F- MCCAMEY (ELLENBURGER) APV MCCAMEY LLC 14663 SHIRK, MARY K. AMACKER-TIPPETT, S. (BEND) HUNT OIL COMPANY 17424 SHIRK, MARY K. AMACKER-TIPPETT, S. (BEND) SANDIA PRODUCTION CO., INC. 05423 SHIRK, MARY K. AMACKER-TIPPETT, S. (BEND) SOUTHWEST ROYALTIES, INC. 04326 SHIRK, MARY K. AMACKER-TIPPETT, S. (BEND, UP.) SANDIA PRODUCTION CO., INC. 09595 SHIRK, MARY K. AMACKER-TIPPETT, SE(BEND 10600) SANDIA PRODUCTION CO., INC. 05448 SHIRK, OTTO MCCAMEY BUSTOS, MARTIN OIL 08240 SHIRLEY DORMAN, WEST (GOEN) CEDAR OIL COMPANY 20981 SHOFNER ESTATE JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 04405 SIERRA A SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 20523 SIGMA MEADOWS WILDCAT SED ENERGY INC. 16432 SIGMA MEADOWS CRESSON (SAN ANDRES) SED ENERGY INC. 15927 SIGMA MEADOWS (HACIENDA) CRESSON (SAN ANDRES) SED ENERGY INC. 15980 SIKES SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04970 SILER SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04684 SILER HOPE 4-43 A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20870 SILER HOPE 4-43 C SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20854 SILER HOPE 4-43 D SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20910 SILER HOPE 4-43 G SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20892 SILER HOPE 4-43 H SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 20894 SIMCIK, CLIFTON LIPAN CREEK (ELLENBURGER) BUSTAMANTE OIL COMPANY 10361 SIMCIK, CLIFTON LIPAN CREEK (HARKEY SD.) EDINBURGH ENERGY PARTNERS, LLC 18547 SIMPSON "H" MEADOW CREEK (CANYON) TOMAHAWK PETROLEUM 10521 SIMPSON CANYON T-4 RANCH (WOLFCAMP) MLC OPERATING, LP 15573 SIMPSON CANYON 1027 UNIT BLUEGRASS (CLEARFORK) MLC OPERATING, LP 16082 SIMPSON CANYON 1028 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15742 SIMPSON CANYON 103 UNIT WILDCAT MLC OPERATING, LP 17012 SIMPSON CANYON 103 UNIT BLUEGRASS (LEONARD) CATHS OIL & GAS 15861 SIMPSON CANYON 1044 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15790 SIMPSON CANYON 1045 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15613


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SIMPSON CANYON 1046 STATE BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15878 SIMPSON CANYON 2027 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15880 SIMPSON CANYON 2043 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15938 SIMPSON CANYON 2044 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15894 SIMPSON CANYON 2045 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15741 SIMPSON CANYON 3027 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15966 SIMPSON CANYON 3044 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15988 SIMPSON CANYON 3045 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15850 SIMPSON CANYON 4027 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15922 SIMPSON CANYON 4045 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15785 SIMPSON CANYON 5027 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15982 SIMPSON CANYON 5045 UNIT BLUEGRASS (WOLFCAMP) MLC OPERATING, LP 15867 SIMPSON-MANN "A" ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 12127 SIMPSON-MANN "B" ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 12350 SIMPSON-MANN "C" ATKINSON, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 12217 SIMS ASHTON (DOG BEND) CEDAR OIL COMPANY 06871 SIMS FENNELL (CISCO REEF) CEDAR OIL COMPANY 20327 SIMS MYRNA LYNN LONE STAR PRODUCTION 15592 SIMS PAINT ROCK (CAPS, LOWER) CONCHO OILFIELD SERV & OPER CO. 10587 SINCLAIR 8A SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19439 SINCLAIR 8B SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19638 SINCLAIR 8C SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20087 SINCLAIR 8D SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20096 SKAGGS SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11072 SKAGGS 8 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 08704 SKAGGS 8 SWD SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20276 SKELLY-SUGG "45" ROCK PEN (CANYON) FRONT STREET OPERATING, LLC 06991 SKELLY-UNIVERSITY PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 05095 SLACK GIEBEL SLACK (STRAWN LIME) TAG OPERATING COMPANY, INC. 10054 SLATER 23 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18594 SLAUGHTER SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06975 SLAUGHTER SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 18009 SLAUGHTER - 13 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 06924 SLAUGHTER "18" SHEFFIELD, SE (DEVONIAN) STALEY OPERATING CO. 15315 SLAUGHTER "27" SHEFFIELD, SE (DEVONIAN) URBAN OIL & GAS GROUP, LLC 15340 SLEDGE HAMMER 34 HONDO (CANYON SAND) MULLOY OPERATING, INC. 16776 SMITH SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 09089 SMITH SPRABERRY (TREND AREA) ENVIRONMENTAL DISPOSAL SYSTEMS 06904 SMITH "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14106 SMITH "59A" PROBANDT (LEONARD) PIONEER NATURAL RES. USA, INC. 16224 SMITH BROS LIN (WOLFCAMP) QEP ENERGY COMPANY 18000 SMITH 113 SE SPRABERRY (TREND AREA) APACHE CORPORATION 17870 SMITH 59 PROBANDT (CANYON) PIONEER NATURAL RES. USA, INC. 18122 SMITH, DAN R. NORDIC (DOG BEND) WAGMAN PETROLEUM, INC. 10725 SMITH, J. W. NORTON, N. (CAPPS) HOPEWELL OPERATING, INC. 14479 SMITH, J. W. NORTON, W. (FRY, LOWER) HOPEWELL OPERATING, INC. 03317 SMITH, J.W. NORTON, N. (PALO PINTO) HOPEWELL OPERATING, INC. 15824 SMITH, T. D. ESTATE SANFORD (FRY) CO ENERGY 12442 SMOKEY FENNELL (CAPPS) CEDAR OIL COMPANY 17503 SMOKEY FENNELL (GOEN) CEDAR OIL COMPANY 16075 SNELSON LEONARD (HOME CREEK) PLACE OIL AND GAS CO. 15854


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SNELSON #5 LEONARD, NORTH (3460 SAND) PLACE OIL AND GAS CO. 14925 SNELSON 2 SAXON (GARDNER SAND) EDINBURGH ENERGY PARTNERS, LLC 14800 SNELSON 3 LEONARD PIONEER ENERGY CORPORATION 14837 SNOW DRAW B SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18063 SNOWDEN SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 14275 SOHIO-KEELE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10906 SOHIO-SHANNON SHANNON (SAN ANDRES) CLARK OIL CO. 09999 SONNY BROWN SHEEP MOUNTAIN (CONSOLIDATED) ROMINE OIL & GAS, LLC 16816 SONYA SPRABERRY (TREND AREA) TRP OPERATING LLC 16599 SOPPE AMACKER-TIPPETT, SE(BEND 10600) OSBORN HEIRS COMPANY 13606 SOPPE AMACKER-TIPPETT,SE.(STRAWN) OSBORN HEIRS COMPANY 13455 SOPPE SPRABERRY (TREND AREA) OSBORN HEIRS COMPANY 13532 SORG "A" WORLD TROJAN OIL COMPANY, LLC 05948 SORG ESTATE WORLD TROJAN OIL COMPANY, LLC 03867 SORG, P. J. ESTATE WORLD UNITEX OIL & GAS, L.L.C. 02209 SORRELL SPECK, SE. (KING) MCCAMMON OIL & GAS, INC. 17394 SORRELL "A" ARENA (KING SAND) DAMRON ENERGY, LLC 16096 SORRELL "C" SPECK, SE. (KING) PRODUCTION OPERATORS OF TX, LLC 16295 SOUTH FULLER HENSON (MORRIS) WINDHAM RESOURCES 09673 SOUTH STILES SPRABERRY UNIT SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 06162 SOUTHLAND-SCOTT JOHN SCOTT (GRAYBURG) COPPERTOP 04103 SPECK NEEDLE CREEK (STRAWN) FELDERHOFF PRODUCTION COMPANY 13325 SPECK NEEDLE CREEK (STRAWN) FELDERHOFF PRODUCTION COMPANY 13649 SPECK,JOE NEEDLE CREEK (STRAWN) CONCHO OILFIELD SERV & OPER CO. 14999 SPENCE ESTATE JAN-JERRYE, SE. (STRAWN) RAMTEX ENERGY LLC 16731 SPENCER NEEDLE CREEK (CANYON) FELDERHOFF PRODUCTION COMPANY 13721 SPENCER "29" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15902 SPIKE S UNIT LIN (WOLFCAMP) APACHE CORPORATION 18212 SPILL WINTERS (GARDNER) DEL MAR ENERGY, INC. 17352 SPILL 1 WINTERS (PALO PINTO) DEL MAR ENERGY, INC. 16656 SPILL 1 WINTERS (PALO PINTO) PIONEER ENERGY CORPORATION 14595 SPILL, ALBERT MCMILLON (KING SAND) TRACKER MINERAL 09994 SPRABERRY ALDWELL UNIT SPRABERRY (TREND AREA) APACHE CORPORATION 03444 SPREEN, OTTO "A" TALPA, SW. (DOG BEND) BAKER OPERATING, INC. 11744 SPRINGHOLE SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18474 SPROUL CODY BELL, SW. (WOLFCAMP) DAESUNG ENERGY RESOURCES INC. 18456 SRH SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15043 SRH - CARLTON "10A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17395 SRH - CARLTON "10B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17390 SRH - JACKSON "9" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17383 SRH - TAYLOR "17" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17334 SRH "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14899 SRH "AA" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14911 SRH "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14937 SRH "BA" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14990 SRH "10" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17333 SRH "10A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17415 SRH "10B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17441 SRH "10C" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17417 SRH "10D" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17490 SRH "11" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17435


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SRH "12" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17496 SRH "12A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17520 SRH "150" JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 09360 SRH "151" JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 09361 SRH "152" JOHN SCOTT (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 09362 SRH "7" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17357 SRH "7A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17330 SRH "8" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17404 SRH "8A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17524 SRH "8B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17523 SRH "8C" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17511 SRH "9" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17347 SRH "9A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17421 SRH A 9-8 (PSA-M) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19184 SRH A 9-8 (PSA-N) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19202 SRH CARLTON "10" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17340 SRH E 7-8 (PSA-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19148 SRH E 7-8 (PSA-A) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 20382 SRH E 7-8 (PSA-D) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 20198 SRH E 7-8 (PSA-E) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 20199 SRH KINDEE A SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18444 SRH KINDEE B ACORN (WOLFCAMP, LOWER) LAREDO PETROLEUM, INC. 17763 SRH KINDEE C SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18445 SRH KINDEE D SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18446 SRH KINDEE UNIT 1 LIN (WOLFCAMP) LAREDO PETROLEUM, INC. 18328 SRH NORTH SPRABERRY (TREND AREA) APACHE CORPORATION 16968 SRH SOUTH SPRABERRY (TREND AREA) APACHE CORPORATION 16972 SRH 12 RED HOUSE (FUSSELMAN) APACHE CORPORATION 18190 SRH 12 SPRABERRY (TREND AREA) APACHE CORPORATION 16983 SRH 16 RED HOUSE (FUSSELMAN) APACHE CORPORATION 18180 SRH 16 ROBLE GRANDE (STRAWN\WOODFORD) APACHE CORPORATION 18189 SRH 16 SPRABERRY (TREND AREA) APACHE CORPORATION 16584 SRH 18 ROBLE GRANDE (STRAWN\WOODFORD) APACHE CORPORATION 18179 SRH-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 16791 SRH-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 16807 SRH-C- SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 19552 SRH-C- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17074 SRH-D- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17192 SSH UNIT LIN (WOLFCAMP) APACHE CORPORATION 18337 STABLE UNIVERSITY 22A FARMER (SAN ANDRES) OTB OPERATING, LLC 19109 STANLEY SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 17491 STANOLIND-BURLESON MCCAMEY XOG OPERATING LLC 00994 STANSBERRY OVERLOOK (ELLENBURGER) MARTIN MATRIX INC. 19917 STANSBERRY TOE NAIL (STRAWN) SUN RIVER OPERATING, INC. 17494 STANSBERRY, R.L. TRUST TOE NAIL, NORTH (HARKEY) REMUDA OPERATING COMPANY 13557 STAPP SPRABERRY (TREND AREA) MARIENFELD EXPLORATION, INC. 11765 STARNES & FOWLER "A" MCCAMEY CARDWELL OIL CORPORATION 10536 STASNEY, MALCORINE W. FUZZY CREEK (GOEN) J & J WELL SERVICE, INC. 07583 STASNEY, MALCORINE W. FUZZY CREEK (GOEN -C-) J & J WELL SERVICE, INC. 10007 STATE BLOCK 47 (SHALLOW) STERLYNN OIL & GAS, INC. 07301 STATE DICK RICHARDSON (GARDNER LIME) HANNATHON PETROLEUM, LLC 12318


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ STATE FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 13036 STATE -IT- FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 03598 STATE -IU- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 05594 STATE -IV- FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 03568 STATE -RQ- 53-3 BAKER RANCH (CANYON) REMUDA OPERATING COMPANY 11391 STATE -WP- FARMER (SAN ANDRES) L & M OPERATING, INC. 13033 STATE -WW- FARMER (SAN ANDRES) L & M OPERATING, INC. 13034 STATE -16- FARMER (SAN ANDRES) L & M OPERATING, INC. 11398 STATE "A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 13037 STATE "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10342 STATE "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10366 STATE "E" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10483 STATE "J" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12064 STATE "K" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12073 STATE "L" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12082 STATE "O" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12963 STATE "P" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12613 STATE "Q" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12618 STATE "S" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12747 STATE "V" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12967 STATE "VD" IRION 163 (ELLEN) WOODBINE PRODUCTION CORPORATION 07314 STATE "VE" IRION 163 (ELLEN) WOODBINE PRODUCTION CORPORATION 07415 STATE "VE" LIN (WOLFCAMP) WOODBINE PRODUCTION CORPORATION 12734 STATE "WX" FARMER (SAN ANDRES) L & M OPERATING, INC. 13245 STATE "WX" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 13041 STATE "YD" IRION 163 (CLEAR FORK) WOODBINE PRODUCTION CORPORATION 07539 STATE "YO" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 12543 STATE "YP-A" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 12991 STATE "YP" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 09481 STATE "YR" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 09482 STATE CARTER SPRABERRY (TREND AREA) R 40 EXC HIBERNIA RESOURCES III, LLC 19496 STATE GLASS PEGASUS (CONSOLIDATED) COG OPERATING LLC 17150 STATE IV BLOCK 47 (SHALLOW) OVERTON PARK OIL & GAS LP 13148 STATE OF TEXAS C-M-R (GRAYBURG) BUSTOS, MARTIN OIL 05608 STATE OF TEXAS -BG- BLOCK 49 (2450) EGI, INC. 02302 STATE OF TEXAS -CQ- WEGER, NORTH ENDEAVOR ENERGY RESOURCES L.P. 03053 STATE R SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18370 STATE SCHOOL BOARD -MF- TIPPETT (LEONARD, LOWER) BYRD OPERATING COMPANY 05593 STATE SD BEST (ELLENBURGER) SAHARA OPERATING COMPANY 16700 STATE-GLASS PEGASUS (DEVONIAN) XTO ENERGY INC. 13793 STATE-WOLTERS JOHN SCOTT (GRAYBURG) FLOYD, TIMBER INC. 04746 STATE-WOLTERS JOHN SCOTT (GRAYBURG) MARTIN, JIMMY INC 06095 STATE"WX-A" FARMER (SAN ANDRES) L & M OPERATING, INC. 13246 STEELE "48" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14254 STEPHANIE SPRABERRY (TREND AREA) COG OPERATING LLC 15607 STEPHANIE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17288 STEPHENS FUNK (SAN ANDRES) PRESTONWOOD OPERATING LLC 17418 STERLING MOORE WILDCAT 3H CONSULTING, LLC 19554 STEVENSON FRADEAN (DEVONIAN) APV MCCAMEY LLC 07206 STEVENSON "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12377 STEVENSON "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12639


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ STEVENSON "24" SPRABERRY (TREND AREA) APACHE CORPORATION 11777 STEVENSON "26" SPRABERRY (TREND AREA) DE3 OPERATING LLC 11827 STEVENSON "26A" SPRABERRY (TREND AREA) DE3 OPERATING LLC 12215 STEVENSON, J. ESTATE SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 14039 STEVESMITH113 SPRABERRY (TREND AREA) COG OPERATING LLC 17281 STEWARD GWYN (CANYON) DISCOVERY OPERATING, INC. 08129 STEWART DRAW THE LINE (CANYON) GEOSURVEYS, INC. 18365 STEWART SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14256 STEWART, J. R. BENEDUM (SPRABERRY) XTO ENERGY INC. 02832 STILES SWD SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 11337 STILES 9-26 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 19481 STINKY GOAT WILDCAT MERCURY OPERATING, LLC 19957 STOKES SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 06581 STOKES '14' SPRABERRY (TREND AREA) DE3 OPERATING LLC 19066 STOKES 14 4210H SPRABERRY (TREND AREA) DE3 OPERATING LLC 20335 STOKES 14 4413H SPRABERRY (TREND AREA) DE3 OPERATING LLC 20334 STONE DORMAN, WEST (GOEN) RIDGLEA ENERGY I, LLC 12752 STONE SPRABERRY (TREND AREA) APACHE CORPORATION 19019 STONE 5202 (ALLOC) SPRABERRY (TREND AREA) APACHE CORPORATION 19122 STONE 5202B (ALLOC) SPRABERRY (TREND AREA) APACHE CORPORATION 19526 STONE 5202C (ALLOC) SPRABERRY (TREND AREA) APACHE CORPORATION 19299 STONE 5202D (ALLOC) SPRABERRY (TREND AREA) APACHE CORPORATION 19555 STONE 5202E (ALLOC) SPRABERRY (TREND AREA) APACHE CORPORATION 19909 STONE 5202W (ALLOC) SPRABERRY (TREND AREA) APACHE CORPORATION 19409 STOUT SPRABERRY (TREND AREA) ENVIRONMENTAL DSPL SYSTEMS, LLC 08793 STOUT -A- SPRABERRY (TREND AREA) PITTS ENERGY CO. 01621 STOUT "C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12182 STOUT "F" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12288 STOUT, S. E. -A- SPRABERRY (TREND AREA) HUNT OIL COMPANY 01453 STOUT, S. E. -A- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 01568 STOUT, S. E. -B- SPRABERRY (TREND AREA) HUNT OIL COMPANY 04554 STOUT, S. E. "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 01567 STOUT, S.E. SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 15839 STOUT, S.E. -A- SPRABERRY (TREND AREA) CONOCOPHILLIPS COMPANY 19894 STRAUSS WEGER (SAN ANDRES) RECOVERY OPERATING LP 09603 STRAUSS WEGER, NORTH BASIC ENERGY SERVICES, L.P. 09525 STRAUSS (M) ET AL WEGER, SW. (GRAYBURG-SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07650 STRAUSS ET AL 2 WEGER (SAN ANDRES) 3N OILFIELD SERVICES LLC 08598 STRAUSS ETAL WEGER, SW. (GRAYBURG-SAN ANDRES) FOUR STARR PRODUCTION, LLC 07188 STRAUSS RANCH 1 WEGER (SAN ANDRES) ATROPOS EXPLORATION COMPANY 19800 STRAUSS-PFLUGER (M) ET AL WEGER, SW. (GRAYBURG-SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07857 STRAUSS-PFLUGER ET AL WEGER, SW. (GRAYBURG-SAN ANDRES) FOUR STARR PRODUCTION, LLC 07221 STRAUSS-PFLUGER 1 WEGER (SAN ANDRES) ATROPOS EXPLORATION COMPANY 19950 STRAUSS, ET AL WEGER (SAN ANDRES) ATROPOS EXPLORATION COMPANY 19522 STRAUSS, H. S., ETAL WEGER (SAN ANDRES) DLB OIL & GAS INC. 02370 STRAWBERRY FARMER (SAN ANDRES) WTX SWD, LLC 17942 STRIDER SPRABERRY (TREND AREA) R 40 EXC CROWNQUEST OPERATING, LLC 20083 STRIDER E SPRABERRY (TREND AREA) R 40 EXC CROWNQUEST OPERATING, LLC 20216 STRIDER F SPRABERRY (TREND AREA) R 40 EXC CROWNQUEST OPERATING, LLC 20264 STRIDER G SPRABERRY (TREND AREA) R 40 EXC CROWNQUEST OPERATING, LLC 20140 STRUBE SPRABERRY (TREND AREA) VELOCITY WATER SOLUTIONS, LP 20859


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ STUART "32" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15725 STUBBLEFIELD MOTLEY, NW. (PALO PINTO) HORIZON WELL SERVICES, INC. 10279 STUBBLEFIELD, J. S., -A- MOTLEY, NW. (PALO PINTO) GRIGGS, VICTOR C. 04099 STUMHOFFER SPRABERRY (TREND AREA) APACHE CORPORATION 08937 STUMHOFFER SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 12525 STUMHOFFER "A" SPRABERRY (TREND AREA) APACHE CORPORATION 12226 SUBURBAN PROPANE GAS CORP. REFOIL (CLEAR FORK 3056) SANDIA PRODUCTION CO., INC. 04649 SUDIE SPRABERRY (TREND AREA) COG OPERATING LLC 18429 SUE ELLEN-LUEDECKE RAMON (LEONARD) OXY USA INC. 12399 SUGG ANDREW A (WOLFCAMP) COMSTOCK ENERGY, LLC 15758 SUGG HOWDA (CLEAR FORK) REMUDA OPERATING COMPANY 05980 SUGG LUCKY-MAG, W. (SAN ANGELO) ARMOR PETROLEUM, INC. 04468 SUGG SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06418 SUGG SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 13971 SUGG -A- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 06281 SUGG -B- ELA SUGG (WOLFCAMP) SIANA OIL & GAS 11820 SUGG -B- HOWDA (CLEAR FORK) REMUDA OPERATING COMPANY 05750 SUGG -171- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 06509 SUGG 'B' KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 15297 SUGG '10' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18557 SUGG '1910' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18485 SUGG '3A' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18862 SUGG '5A' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18487 SUGG '54' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18739 SUGG '7A' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18541 SUGG '9A' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18542 SUGG "A" ROCK PEN (CANYON) TRACKER RESOURCE DEV III, LLC 10807 SUGG "A" SPRABERRY (TREND AREA) APACHE CORPORATION 12720 SUGG "A" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 13972 SUGG "B" ROCK PEN (CANYON) THP OPERATING LLC 10997 SUGG "E" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20441 SUGG "E" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12342 SUGG "F" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12380 SUGG "F" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20454 SUGG "F" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 12687 SUGG "G" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12381 SUGG "G" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20437 SUGG "G" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 13206 SUGG "H" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13515 SUGG "H" SPRABERRY (TREND AREA) INDEPENDENCE RESOURCES MGMT, LLC 20440 SUGG "H" SUGG RANCH (CANYON) INDEPENDENCE RESOURCES MGMT, LLC 13238 SUGG "1" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20755 SUGG "1" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15719 SUGG "1A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20724 SUGG "1A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16229 SUGG "10" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20721 SUGG "10" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16072 SUGG "11" ANDREW A. (CANYON) ARES ENERGY, LTD. 09957 SUGG "12" ANDREW A. (CANYON) ARES ENERGY, LTD. 09087 SUGG "13" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20747 SUGG "13" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17273


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SUGG "15" ANDREW A. (CANYON) ARES ENERGY, LTD. 09902 SUGG "19" ANDREW A. (CANYON) COMPASS ENERGY OPERATING, LLC 16431 SUGG "1907" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20737 SUGG "1907" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16735 SUGG "1910" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17072 SUGG "1911" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20736 SUGG "1911" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17039 SUGG "2" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20734 SUGG "2" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15874 SUGG "214" ANDREW A (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 16219 SUGG "214" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16104 SUGG "3" ANDREW A. (CANYON) ARES ENERGY, LTD. 09909 SUGG "3" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20763 SUGG "3" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15926 SUGG "3A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16318 SUGG "33" KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 13879 SUGG "35" KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 14727 SUGG "35" SPRABERRY (TREND AREA) APACHE CORPORATION 10823 SUGG "41" SUGG RANCH (CANYON) OXY USA INC. 16176 SUGG "43" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20714 SUGG "43" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15853 SUGG "5" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20735 SUGG "5" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15687 SUGG "5A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16288 SUGG "53" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20710 SUGG "53" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15696 SUGG "53A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20711 SUGG "53A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16458 SUGG "6" ANDREW A. (CANYON) ARES ENERGY, LTD. 10388 SUGG "6" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20762 SUGG "6" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16074 SUGG "68" ANDREW A (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 17564 SUGG "68" LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 15852 SUGG "68" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16003 SUGG "69" ANDREW A. (CANYON) COMPASS ENERGY OPERATING, LLC 17484 SUGG "7" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20739 SUGG "7" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15705 SUGG "7A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16306 SUGG "8" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20738 SUGG "8" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15832 SUGG "8A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20726 SUGG "8A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16310 SUGG "9" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20730 SUGG "9" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16643 SUGG "9A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17359 SUGG "9H" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20717 SUGG "9H" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16000 SUGG A 141-140 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20512 SUGG A 141-140 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20513 SUGG A 141-140 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20516 SUGG A 141-140 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20137


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SUGG A 141-140 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20107 SUGG A 141-140 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20114 SUGG A 141-140 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20105 SUGG A 141-140 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20115 SUGG A 171-172 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19381 SUGG A 171-172 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20407 SUGG A 171-172 (ALLOC-H) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 18934 SUGG A 171-173 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20408 SUGG A 171-173 (ALLOC-C) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 19380 SUGG A 171-173 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20409 SUGG A 171-173 (ALLOC-E) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 19390 SUGG A 171-173 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20410 SUGG A 171-173 (ALLOC-F) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 19389 SUGG A 171-173 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20411 SUGG A 171-173 (ALLOC-H) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 19388 SUGG A 185-187 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19585 SUGG A 185-187 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19577 SUGG A 185-187 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19590 SUGG A 197-195 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19240 SUGG A 197-195 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19241 SUGG A 197-195 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19095 SUGG A 208-209 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19372 SUGG A 208-209 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18050 SUGG A 208-209 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18918 SUGG A. A. 1894 A SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18077 SUGG B 111-110 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20884 SUGG B 111-110 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20885 SUGG B 111-110 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20886 SUGG B 111-112 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20887 SUGG B 111-112 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20888 SUGG B 111-112 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20889 SUGG B 137-25 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20934 SUGG B 137-25 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20935 SUGG B 137-25 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20936 SUGG B 163-162 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20406 SUGG B 163-162 (ALLOC-A) SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 20329 SUGG B 163-162 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20341 SUGG B 163-162 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20340 SUGG B 163-162 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20348 SUGG B 163-162 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20342 SUGG B 163-162 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20345 SUGG B 163-162 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20352 SUGG B113-114 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20487 SUGG B113-114 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20490 SUGG B113-114 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20489 SUGG B113-114 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20491 SUGG B113-114 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20492 SUGG B113-114 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20493 SUGG B113-114 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20494 SUGG B131-130 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18689 SUGG B131-132 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18703


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SUGG B131-133 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20182 SUGG B131-133 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20183 SUGG E 197-195 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19242 SUGG E 197-195 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19243 SUGG E 197-195 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19244 SUGG E 197-198 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19686 SUGG E 197-198 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18638 SUGG E 197-198 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19378 SUGG E 197-198 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19360 SUGG E 208-207 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19379 SUGG E 208-207 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19735 SUGG E 208-207 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18820 SUGG E 208-207 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18825 SUGG E 208-207 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18695 SUGG E 208-207 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19688 SUGG E 208-209 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18879 SUGG E 208-209 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18696 SUGG E 208-209 (ALLOC-H) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19190 SUGG FAMAR "5" SPRABERRY (TREND AREA) TXP, INCORPORATED 20418 SUGG FARMAR SPRABERRY (TREND AREA) TXP, INCORPORATED 20416 SUGG FARMAR SUGG RANCH (CANYON) TXP, INCORPORATED 16689 SUGG FARMAR '13' SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 18331 SUGG FARMAR '14' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18486 SUGG FARMAR '19' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18864 SUGG FARMAR '19' SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 19805 SUGG FARMAR '20' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18750 SUGG FARMAR '20' SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 18198 SUGG FARMAR '23A' SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 18013 SUGG FARMAR '27A' SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 18103 SUGG FARMAR '3069' SUGG RANCH (CANYON) TXP, INCORPORATED 18349 SUGG FARMAR '6' SUGG RANCH (CANYON) TXP, INCORPORATED 17882 SUGG FARMAR '7A' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18740 SUGG FARMAR "13" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20761 SUGG FARMAR "22" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20727 SUGG FARMAR "22" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16334 SUGG FARMAR "23" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20723 SUGG FARMAR "23" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16193 SUGG FARMAR "23A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20741 SUGG FARMAR "24A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20750 SUGG FARMAR "24A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17408 SUGG FARMAR "25" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20757 SUGG FARMAR "25" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15845 SUGG FARMAR "26" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20715 SUGG FARMAR "26" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15895 SUGG FARMAR "26A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20751 SUGG FARMAR "26A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 17472 SUGG FARMAR "27 A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20740 SUGG FARMAR "3069" SPRABERRY (TREND AREA) TXP, INCORPORATED 20415 SUGG FARMAR "38" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 21003 SUGG FARMAR "40" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20756 SUGG FARMAR "40" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20758


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SUGG FARMAR "40" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 15770 SUGG FARMAR "41A" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20722 SUGG FARMAR "41A" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16177 SUGG FARMAR "41B" SPRABERRY (TREND AREA) TXP, INCORPORATED 20414 SUGG FARMAR "41B" SUGG RANCH (CANYON) TXP, INCORPORATED 16663 SUGG FARMAR "5" SUGG RANCH (CANYON) TXP, INCORPORATED 17075 SUGG FARMAR "6" ANDREW A. (CANYON) TXP, INCORPORATED 17654 SUGG FARMAR "6" SPRABERRY (TREND AREA) TXP, INCORPORATED 20417 SUGG STRIP LIN (WOLFCAMP) APACHE CORPORATION 18259 SUGG 0607 LIN (WOLFCAMP) APACHE CORPORATION 18247 SUGG 0807 LIN (WOLFCAMP) APACHE CORPORATION 18432 SUGG 1 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17555 SUGG 11 SPRABERRY (TREND AREA) ARES ENERGY, LTD. 19151 SUGG 13 LIN (WOLFCAMP) APACHE CORPORATION 18385 SUGG 14 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16253 SUGG 14 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17627 SUGG 15 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17655 SUGG 15 SWD SPRABERRY (TREND AREA) TANKERSLEY SWD LLC 20430 SUGG 15 SWD SUGG RANCH (CANYON) TANKERSLEY SWD LLC 17725 SUGG 1895 ANDREW A. (CANYON) GANADOR OPERATING, LLC 13705 SUGG 1895 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 15365 SUGG 1895 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17657 SUGG 1896 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17300 SUGG 1896 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17966 SUGG 1897 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16425 SUGG 1897 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17883 SUGG 1900 ANDREW A. (CANYON) ARES ENERGY, LTD. 13650 SUGG 1903 "A" TOM KETCHUM (WOLFCAMP REEF) MEADCO PROPERTIES 14993 SUGG 2 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17186 SUGG 2 SPRABERRY (TREND AREA) ARES ENERGY, LTD. 19255 SUGG 2 NE SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 19603 SUGG 20 SPRABERRY (TREND AREA) ARES ENERGY, LTD. 19265 SUGG 25 MY WAY (CLEARFORK) PIONEER NATURAL RES. USA, INC. 15115 SUGG 26 ANDREW A. (CANYON) GANADOR OPERATING, LLC 11486 SUGG 26 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18649 SUGG 2829 LIN (WOLFCAMP) APACHE CORPORATION 18171 SUGG 29 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17615 SUGG 3 BROWNEVER (DEAN) GANADOR OPERATING, LLC 17296 SUGG 3 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16068 SUGG 3 NW LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16798 SUGG 3 NW SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17838 SUGG 30 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17618 SUGG 30 NE BROWNEVER (DEAN) GANADOR OPERATING, LLC 17287 SUGG 3057 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16778 SUGG 3057 SPRABERRY (TREND AREA) ARES ENERGY, LTD. 19256 SUGG 3057 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18283 SUGG 3058 ANDREW A. (CANYON) OXY USA INC. 15144 SUGG 3058 MOELSON (CLEARFORK) OXY USA INC. 15350 SUGG 3059 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17625 SUGG 3060 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16251 SUGG 3060 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17746


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SUGG 3063 SPRABERRY (TREND AREA) ARES ENERGY, LTD. 19276 SUGG 3067 ANDREW A. (CANYON) GANADOR OPERATING, LLC 11362 SUGG 3067 ANDREW A (WOLFCAMP) GANADOR OPERATING, LLC 15903 SUGG 3067 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16712 SUGG 3067 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18074 SUGG 3069 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17533 SUGG 3070 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16694 SUGG 3070 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17965 SUGG 3071 ANDREW A. (CANYON) GANADOR OPERATING, LLC 16226 SUGG 3071 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 16423 SUGG 3071 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17918 SUGG 3071 SE LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17080 SUGG 3071 SE SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18100 SUGG 3072 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17036 SUGG 3072 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17839 SUGG 3073 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17050 SUGG 3073 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17622 SUGG 31 LIN (WOLFCAMP) APACHE CORPORATION 18773 SUGG 36 MY WAY (CLEARFORK) GANADOR OPERATING, LLC 16424 SUGG 36 MY WAY (CLEARFORK) PIONEER NATURAL RES. USA, INC. 17842 SUGG 46 G B C (WOLFCAMP) GANADOR OPERATING, LLC 16127 SUGG 46 MY WAY (CLEARFORK) PIONEER NATURAL RES. USA, INC. 15141 SUGG 4948 LIN (WOLFCAMP) APACHE CORPORATION 18150 SUGG 5 ANDREW A. (CANYON) GANADOR OPERATING, LLC 11467 SUGG 5 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17086 SUGG 5E LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 17488 SUGG 5E SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17890 SUGG 55 G B C (WOLFCAMP) GANADOR OPERATING, LLC 16174 SUGG 55 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17964 SUGG 6 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17482 SUGG 6 VAN KEUREN (SAN ANGELO) GANADOR OPERATING, LLC 18075 SUGG 69 SUGG, NORTH (SAN ANDRES) EVERQUEST ENERGY CORPORATION 18409 SUGG 7 ANDREW A. (CANYON) GANADOR OPERATING, LLC 11477 SUGG-A- WILDCAT LAREDO PETROLEUM, INC. 19317 SUGG-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 16507 SUGG-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 16734 SUGG-B113- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17354 SUGG-B131- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17356 SUGG-B195- SPRABERRY (TREND AREA) LAREDO MIDSTREAM SERVICES, LLC 19057 SUGG-B195- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17355 SUGG-C- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17026 SUGG-C- SPRABERRY (TREND AREA) R 40 EXC LAREDO PETROLEUM, INC. 18847 SUGG-D- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 16843 SUGG-E- WILDCAT LAREDO PETROLEUM, INC. 20192 SUGG-E- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 13953 SUGG-F- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18188 SUGG-FARMAR LUCKY-MAG (DIVIDE SAND) FORTUNE ENERGY, INC. 07687 SUGG-FARMAR "A" LUCKY MAG (CONSOLIDATED) FORTUNE ENERGY, INC. 16990 SUGG-FARMAR "19" ROCK PEN (CLEARFORK) OXY USA INC. 15356 SUGG-FARMAR "23" ROCK PEN (CLEARFORK) OXY USA INC. 15461 SUGG-FARMAR "24" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20720


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SUGG-FARMAR "24" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16071 SUGG-FARMAR "7" LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 17706 SUGG-FARMAR "7" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16645 SUGG-FARMAR "9" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20729 SUGG-FARMAR "9" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16613 SUGG-FARMAR 2 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 17501 SUGG-JANE TAYLOR 'E' LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 18491 SUGG-JANE TAYLOR "E" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16076 SUGG-JANE TAYLOR "1" SPRABERRY (TREND AREA) COMPASS ENERGY OPERATING, LLC 20718 SUGG-JANE TAYLOR "1" SUGG RANCH (CANYON) COMPASS ENERGY OPERATING, LLC 16014 SUGG-SCOTT UNIT 1208-E SPRABERRY (TREND AREA) APACHE CORPORATION 14780 SUGG-V- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 14038 SUGG/FARMAR "11" KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 14738 SUGG, A A 2 ANDREW A. (CANYON) FOSSIL PETROLEUM LLC 08507 SUGG, A A 6 ANDREW A. (CANYON) FOSSIL PETROLEUM LLC 08497 SUGG, A. A. 1895 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 15306 SUGG, A. A. 3058 ANDREW A (WOLFCAMP) FOSSIL PETROLEUM LLC 13808 SUGG, A. 3065 ANDREW A. (CANYON) MEADCO PROPERTIES 15188 SUGG, A.A. 1894 ANDREW A. (CANYON) GANADOR OPERATING, LLC 11638 SUGG, A.A. 1894 LONESOME REEF (WOLFCAMP) GANADOR OPERATING, LLC 15900 SUGG, A.A. 1894 SPRABERRY (TREND AREA) GANADOR OPERATING, LLC 18079 SUGG, A.A. 1894 #3 ANDREW A. (CANYON) GANADOR OPERATING, LLC 15440 SUGG, A.A. 1894 "A" ANDREW A. (CANYON) GANADOR OPERATING, LLC 15358 SUGG, C. H. LONE JOE DEEP (FUSSELMAN) MUNSON OPERATING, INC. 12305 SUGG, C. H. -B- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13949 SUGG, C.H. "195" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13516 SUGG, E. 1905 ANDREW A. (CANYON) MEADCO PROPERTIES 10244 SUGG, ELA -A- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06146 SUGG, ELA -B- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06195 SUGG, ELA -D- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06249 SUGG, ELA -D- SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 06707 SUGG, ELA -E- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06273 SUGG, ELA -F- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06295 SUGG, ELA -H- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06324 SUGG, ELA -K- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06385 SUGG, ELA -M- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06454 SUGG, ELA -W- SPRABERRY (TREND AREA) APACHE CORPORATION 06841 SUGG, ELA "P" SPRABERRY (TREND AREA) APACHE CORPORATION 06612 SUGG, ELA "Q" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06619 SUGG, ELA C. HOWDA (CLEAR FORK) LINDENMUTH & ASSOCIATES, INC. 05669 SUGG, ELA C. HOWDA (SAN ANDRES) LINDENMUTH & ASSOCIATES, INC. 05692 SUGG, ELA C. NATHAN MILLER (CLEAR FORK 3825) GANTER DEVELOPMENT, INC. 04446 SUGG, ELA C. SPRABERRY (TREND AREA) MCCAMMON OIL & GAS, INC. 07026 SUGG, ELA C. -59A- SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 07191 SUGG, ELA C. -67- SPRABERRY (TREND AREA) TRACKER RESOURCE DEV III, LLC 06730 SUGG, ELA C. "69" SPRABERRY (TREND AREA) APACHE CORPORATION 06609 SUGG, ELA C. 53-1 KETCHUM MT. (CLEAR FORK) APACHE CORPORATION 09809 SUGG, ELA C. 57 HOWDA (CLEAR FORK) REMUDA OPERATING COMPANY 08010 SUGG, ELA C. 57 HOWDA (SAN ANDRES) REMUDA OPERATING COMPANY 08940 SUGG, ELA C. 69 HOWDA (CLEAR FORK) REMUDA OPERATING COMPANY 08022 SUGG, ELA C. 71 SPRABERRY (TREND AREA) APACHE CORPORATION 07168


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ SUGG, ELA C., -B- SUGG (CLEAR FORK) MCCAMMON OIL & GAS, INC. 02503 SUGG, ELA C., -C- SUGG (CLEAR FORK) TRACKER RESOURCE DEV III, LLC 01964 SUGG, ELA 53 SPRABERRY (TREND AREA) APACHE CORPORATION 10711 SUGG, ELA-I- SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06366 SUGG, J. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14174 SUGG, J. D. "23 LONESOME REEF (WOLFCAMP) COMPASS ENERGY OPERATING, LLC 16616 SUGG, SAMMIE -A- LUCKY MAG (CONSOLIDATED) TRACKER RESOURCE DEV III, LLC 17252 SUGG, SAMMIE H. A LUCKY-MAG (SAN ANGELO) TRACKER RESOURCE DEV III, LLC 14374 SUGG, SAMMIE H., ETAL -C- LUCKY MAG (CONSOLIDATED) TRACKER RESOURCE DEV III, LLC 17253 SUGG, SAMMIE H., ETAL -E- LUCKY MAG (CONSOLIDATED) TRACKER RESOURCE DEV III, LLC 17254 SUGG,A.A. "3058" ANDREW A. (CANYON) FOSSIL PETROLEUM LLC 08975 SUGGS 71 SPRABERRY (TREND AREA) ARKLAND PRODUCING CO., INC. 09955 SUGGS 73 SPRABERRY (TREND AREA) ARKLAND PRODUCING CO., INC. 09995 SUGGS, C. COPE (FUSSELMAN) ROVER PETROLEUM OPERATING, LLC 14576 SUGGS, J. D. 137 SEVEN D (WOLFCAMP) ENDEAVOR ENERGY RESOURCES L.P. 01262 SULLENGER FUNK (SAN ANDRES) PRESTONWOOD OPERATING LLC 17046 SULLENGER JUNE ANN (PENNSYLVANIAN) REDBUD E & P, INC. 19809 SULTEMEIER UNIT F & H, N. (3665) VANCO OIL & GAS CORP. 16028 SULTEMIER -A- F & H, N. (3665) F & S PETROLEUM, L.L.C. 16312 SUNDAY, VERNA M. SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13943 SUNVISON-BEARDEN WILDCAT SEVEN CROSS OPERATING, LLC 16022 SUPER CHICKEN CHRISTOVAL (STRAWN 5100, LOWER) LAVANCO ENERGY, LTD. 18925 SUPERIOR PEGASUS (SAN ANDRES) TRINITY ENVIRO SWD I, L.L.C. 02683 SUPERIOR STATE "14" FARMER (SAN ANDRES) LAST DOLLAR LLC 09923 SUPERIOR STATE "7" FARMER (SAN ANDRES) LAST DOLLAR LLC 09917 SUPERIOR-KNIGHT JAMESON (STRAWN) VIRTEX OPERATING COMPANY, INC. 07529 SUPRON-UNIVERSITY FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 07885 SUSAN SPRABERRY (TREND AREA) SM ENERGY COMPANY 15893 SUSAN PETR CELERY (STRAWN 2975) PENTERGY OPERATING, LLC 11466 SUTHERLAND SPRABERRY (TREND AREA) COG OPERATING LLC 17143 SUTHERLAND UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19038 SWAIM RANCH "C" CELERY (STRAWN 2975) OTEX LLC 08804 SWD YORK SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 11748 SWD 75 SPRABERRY (TREND AREA) BNN SOUTH TEXAS, LLC 19569 SWIFT RAMON (LEONARD) FELDERHOFF PRODUCTION COMPANY 18218 SWR SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 16442 SYKES CREE-SYKES (GARDNER, UPPER) RUTHSON ENERGY, INC. 19325 SYKES "A" HOLLOW CREEK (DOG BEND) SDB OIL & GAS, LLC 18651 SYKES "A" M.A.W. (SERRATT) LANDMASTER PARTNERS, INC. 12785 SYKES "B" M.A.W. (SERRATT) LANDMASTER PARTNERS, INC. 12688 SYKES "C" TOM BOMAR (HOME CREEK LM.) LANDMASTER PARTNERS, INC. 12735 SYKES, ALBERT, UNIT CREE-SYKES (GARDNER, UPPER) ATLAS OPERATING LLC 03264 SYKES, B.C. HOLLOW CREEK (DOG BEND) LANDMASTER PARTNERS, INC. 16985 SYLVIA SPRABERRY (TREND AREA) COG OPERATING LLC 18037 T. P. COAL & OIL CO. UNIVERSITY CROCKETT RED TANK RESOURCES, LLC 00398 T. X. L. PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 03145 T. X. L. -S- A/C #2 PEGASUS (SAN ANDRES) XTO ENERGY INC. 02464 T.W.P. (CROSS CUT SAND) UNIT T.W.P. (CROSS CUT SAND) TKP PETROLEUM, INC. 13637 T.X.L. 'T' SPRABERRY (TREND AREA) COG OPERATING LLC 18351 T.X.L. "W" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17162 TABASCO 13 ESCONDIDO (FUSSELMAN) THOMPSON, J. CLEO 15557


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ TABASCO 2 ESCONDIDO (FUSSELMAN) THOMPSON, J. CLEO 15983 TALLEY "A" SPRABERRY (TREND AREA) APACHE CORPORATION 08470 TALLEY "B" SPRABERRY (TREND AREA) APACHE CORPORATION 08715 TALLEY 1 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 19633 TALLEY 2 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17938 TAMMY SPRABERRY (TREND AREA) COG OPERATING LLC 16051 TANKERSLEY TANKERSLEY, W. (SAN ANGELO) BOLDING ENERGY, LLC 13089 TANKERSLEY "A" CRASH (SAN ANGELO) MCCAMMON OIL & GAS, INC. 10564 TANKERSLEY, MYRA BAKER RANCH (CANYON) THP OPERATING LLC 11316 TANKERSLEY, MYRA IRION, W. (CANYON) BOB HUGHES OIL COMPANY, LLC 08558 TARA-TURNER T. D. (6575) HENDERSON NATURAL RES, L.L.C. 09956 TAYLOR PAGE, WEST (WOLFCAMP) DPMP ENERGY LLC 09522 TAYLOR TAYLOR DRAW (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 12290 TAYLOR (45-33) SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19937 TAYLOR '45-33' SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19357 TAYLOR A 14-16 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19424 TAYLOR A 14-16 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19427 TAYLOR A 14-16 (ALLOC-D) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19429 TAYLOR A 14-16 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 19431 TAYLOR A 14-16 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 18728 TAYLOR 31 SPRABERRY (TREND AREA) DE3 OPERATING LLC 07908 TAYLOR 4 SWD RED HOUSE, EAST (ELLEN.) LAREDO MIDSTREAM SERVICES, LLC 21004 TAYLOR 45 AND 33 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20135 TAYLOR 45-33 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19121 TAYLOR-A- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17210 TAYLOR-B- SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17563 TAYTUM 6 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19743 TDP '14' SPRABERRY (TREND AREA) COG OPERATING LLC 17992 TEAGUE 6 FUNK (SAN ANDRES) PRESTONWOOD OPERATING LLC 18654 TEAGUE 6 JUNE ANN (PENNSYLVANIAN) RISING STAR ENERGY PTR, L.L.C. 20349 TEAGUE 9 FUNK (SAN ANDRES) REDBUD E & P, INC. 16944 TEAGUE 9 JUNE ANN (PENNSYLVANIAN) REDBUD E & P, INC. 19852 TEICHMAN 10 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 19518 TEJAS LEGS (FUSSELMAN) DISCOVERY NATURAL RESOURCES LLC 15510 TENNECO-UNIVERSITY "B" BENEDUM (FUSSELMAN) DE3 OPERATING LLC 11615 TEPEE DRAW SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 16833 TERESA DEIKE (FRY) GOLDEN OIL AND RANCH, LLC 19359 TERESA DEIKE (GOEN) GOLDEN OIL AND RANCH, LLC 19508 TERRI SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17108 TERRI "A" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17428 TERRY "118" JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 07587 TERRY, SHANNON NOELKE, SOUTHEAST (QUEEN) HUDMAN, GARY OIL & GAS 12137 TESSA LYNN AMACKER-TIPPETT, SW (WOLFCAMP) SUMMIT PETROLEUM LLC 15186 TESSA LYNN SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18341 TEXACO SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 04192 TEXACO "A" PEGASUS (DEVONIAN) XTO ENERGY INC. 13732 TEXACO "C" PEGASUS (DEVONIAN) XTO ENERGY INC. 13896 TEXACO "23A" SPRABERRY (TREND AREA) HUNT OIL COMPANY 12798 TEXACO "23A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19642 TEXACO SHANNON ESTATE TODD, NW. (SAN ANDRES) PERMIAN WEST CORP. 14376 TEXACO 13 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 19875


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ TEXACO 13 SPRABERRY (TREND AREA) HUNT OIL COMPANY 13333 TEXACO 213 SPRABERRY (TREND AREA) ZACHRY OIL AND GAS PROPERTIES 11119 TEXACO 215 SPRABERRY (TREND AREA) ZACHRY OIL AND GAS PROPERTIES 11059 TEXACO 217 SPRABERRY (TREND AREA) ZACHRY OIL AND GAS PROPERTIES 11065 TEXACO 23 SPRABERRY (TREND AREA) HUNT OIL COMPANY 12768 TEXACO 23 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19641 TEXACO-COATES A UNIT 1 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19007 TEXACO-COATES A UNIT 2 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19010 TEXACO-COATES A UNIT 3 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19631 TEXACO-COATES A UNIT 4 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19635 TEXACO-MARATHON UNIT 1 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19504 TEXACO-PARISH UNIT 1 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19907 TEXACO-PARISH UNIT 2 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19914 TEXACO-PARISH UNIT 3 SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 19448 TEXACO-PARISH UNIT 4 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19449 TEXACO-POWELL SPRABERRY (TREND AREA) DE3 OPERATING LLC 11179 TEXAS -Y- PRICE (GRAYBURG) L & M OPERATING, INC. 04156 TEXAS -Z- PRICE (GRAYBURG) L & M OPERATING, INC. 04205 TEXAS UNIVERSITY -Z- BLOCK 47 (SHALLOW) REIN PUSHER OPERATING LLC 00254 TEXON "28" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 10598 TEXON "8" SPRABERRY (TREND AREA) DE3 OPERATING LLC 09541 TEXON "83" SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 10623 TEXTRON-JOHNSON HARRIETT (PALO PINTO) LOW-END OIL LLC 16204 THACKERSON 35 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18454 THACKERSON 4 CODY BELL, SW. (WOLFCAMP) EAGLE PRODUCTION, INC. 18758 THOMAS SPRABERRY (TREND AREA) APACHE CORPORATION 16577 THOMAS "3" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16426 THOMAS 9 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18172 THOMASON "9" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16366 THOMASON, UNIVERSITY WEGER, NORTH L & M OPERATING, INC. 06738 THOMERSON, A. B. TOE NAIL (STRAWN) ARCH OIL & GAS, LLC 02041 THOMERSON, A. B. -65A- TOE NAIL (STRAWN) ARCH OIL & GAS, LLC 02043 THOMERSON, A.B. MRS. TOE NAIL (STRAWN) CARAWAY OPERATING CO. 08222 THOMERSON, A.B. MRS. "B" TOE NAIL (STRAWN) CARAWAY OPERATING CO. 09375 THOMPSON OZONA (CANYON SAND) THOMPSON, J. CLEO 10969 THOMPSON OZONA, NW. (CANYON) THOMPSON, J. CLEO 04472 THOMPSON -21- OZONA, NW. (CANYON) THOMPSON, J. CLEO 05580 THOMPSON -26- OZONA, NW. (CANYON) THOMPSON, J. CLEO 04180 THOMPSON -27- OZONA, NW. (CANYON) THOMPSON, J. CLEO 04147 THOMPSON -47- OZONA, NW. (SPRABERRY) THOMPSON, J. CLEO 04427 THOMPSON FEE OZONA (CANYON SAND) THOMPSON, J. CLEO 10992 THOMPSON FEE OZONA, NW. (CANYON) THOMPSON, J. CLEO 05660 THOMPSON 27 WILDCAT THOMPSON, J. CLEO 15334 THOMPSON 27 E OZONA, NW. (CANYON) THOMPSON, J. CLEO 04237 THOMPSON 3 FREEDOM (UPPER CLEAR FORK) 1984 OPERATING COMPANY L.L.C. 16695 THOMPSON 67 EXECUTIVE (ELLENBURGER) THOMPSON, J. CLEO 14920 THOMPSON 68 EXECUTIVE (ELLENBURGER) THOMPSON, J. CLEO 14958 THOMPSON/GREEN CREE-SYKES (GARDNER, UPPER) GBTFTA OPERATING, LLC 10045 THOMPSON, R. M. BRUSHY TOP (PERMIAN) ROBERTSON RESOURCES, INC. 00306 THOMSON "G" W. J. B. (WOLFCAMP) OXY USA INC. 15258 THOMSON, THAD "F" W. J. B. (WOLFCAMP) OXY USA INC. 09822


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ THORN, JOHN DOUGLAS RAY (CISCO) CLEAR FORK, INCORPORATED 09729 THORNBURG CAMAR, SW. (STRAWN) VX OPERATING, LLC 19652 THORNBURG CAMAR, SW. (STRAWN 4350) FORTUNE ENERGY, INC. 03362 THORNBURG CAMAR, SW. (STRAWN 4350) VX OPERATING, LLC 19556 THORNBURG FORT MCKAVITT (LIME 4270) BOAZ ENERGY II OPERATING, LLC 04960 THORNBURG "B" CAMAR, SW. (STRAWN) GILLEY, SAM D. 11602 THORNBURG 27 CARAWAY & SMITH (1800 SD.) HANNATHON PETROLEUM, LLC 17903 THORNBURG 27 FORT MCKAVITT (LIME 4150) BOAZ ENERGY II OPERATING, LLC 18021 THORNBURG, M. CAMAR, SW. (STRAWN) BOAZ ENERGY II OPERATING, LLC 20206 THORP "T" ATKINSON, W. (SAN ANGELO) VERDAD OIL & GAS CORPORATION 12461 THUNDERBIRD SLEDGEHAMMER (FUSSELMAN) LEGACY RESERVES OPERATING LP 17222 TIDWELL, T. E. WENDKIRK, WEST (CROSS CUT) WESTERN RESERVES OIL COMPANY INC 08066 TIFFANI SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16727 TIGER 67 WYATT RED OAK ENERGY CO 19451 TIMM VERIBEST, EAST (CROSSCUT) EAGLE TRANSPORTS 12647 TINA BYERS (GARDNER) ATF PETROLEUM INC. 11954 TINA MARIE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17361 TINA MARIE "A" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17324 TINA MARIE "B" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17100 TIPPETT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12420 TIPPETT SPRABERRY (TREND AREA CL. FK.) MCCLURE OIL COMPANY, INC. 07264 TIPPETT TIPPETT OLSEN ENERGY INC. 05008 TIPPETT TIPPETT, W. (ELLENBURGER) WTG EXPLORATION 16459 TIPPETT -A- SPRABERRY (TREND AREA) DIAMONDBACK E&P LLC 03284 TIPPETT -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02937 TIPPETT -34- TIPPETT (LEONARD, LOWER) LEGACY RESERVES OPERATING LP 05743 TIPPETT -36- TIPPETT (CLEAR FORK LO.) LEGACY RESERVES OPERATING LP 14411 TIPPETT "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13372 TIPPETT "33" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13969 TIPPETT SPRABERRY UNIT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 04523 TIPPETT 1-37 TIPPETT (LEONARD, LOWER) WTG EXPLORATION 05604 TIPPETT 37 TIPPETT (LEONARD, LOWER) LEGACY RESERVES OPERATING LP 05879 TIPPETT, J. H. -E- TIPPETT (LEONARD, LOWER) BYRD OPERATING COMPANY 05247 TIPPETT, J. H. -E- /NCT-B/ TIPPETT (LEONARD, LOWER) BYRD OPERATING COMPANY 05284 TIPPETT, J. H. -E-/NCT-C/ TIPPETT (LEONARD, LOWER) BYRD OPERATING COMPANY 05712 TIPPETT, J. H. -G- /NCT-B/ TIPPETT (LEONARD, LOWER) FENWAY ENERGY DEVELOPMENT CO. 04464 TIPPETT, J. H. 40 TIPPETT (LEONARD, LOWER) S.B. STREET OPERATING, INC. 05009 TIPPETT, J. H., -G-, NCT-B TIPPETT FENWAY ENERGY DEVELOPMENT CO. 04776 TIPPETT, J. H., -J- TIPPETT (LEONARD, LOWER) FENWAY ENERGY DEVELOPMENT CO. 04213 TIPPETT, J. H., -40- TIPPETT, WEST (HUECO) S.B. STREET OPERATING, INC. 05394 TIPPETT, J. H., 38 TIPPETT (LEONARD, LOWER) S.B. STREET OPERATING, INC. 04780 TIPPETT, J. H., 38 TIPPETT, WEST (HUECO) S.B. STREET OPERATING, INC. 05392 TIPPETT, JUNE PEGASUS (CONSOLIDATED) APACHE CORPORATION 18804 TIPPETT, JUNE PEGASUS (DEVONIAN) APACHE CORPORATION 14387 TIPPETT, JUNE PEGASUS (ELLENBURGER) APACHE CORPORATION 01177 TIPPETT, JUNE PEGASUS (SAN ANDRES) APACHE CORPORATION 01186 TIPPETT, JUNE "7" PEGASUS (CONSOLIDATED) APACHE CORPORATION 18860 TIPPETT, V. P. 39 SPRABERRY (TREND AREA CL. FK.) PIONEER NATURAL RES. USA, INC. 14756 TIPPS - UNIVERSITY CROCKETT POLARIS PRODUCTION CORP. 00400 TISDALE FORT MCKAVITT (CANYON) BOAZ ENERGY II OPERATING, LLC 10626 TISDALE TILLERY (STRAWN LIME) PRODUCTION WASTE SOLUTIONS, LLC 18719


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ TITA BENEDUM (FUSSELMAN) RP OPERATING, L.L.C. 09231 TODD TODD, DEEP (ELLENBURGER) O'RYAN OIL AND GAS 02020 TODD TODD, SW. (GRAYBURG) VANCO OIL & GAS CORP. 07671 TODD TODD, SW. (SAN ANDRES, UP.) KIDD JOHNSON OIL & GAS, LLC 04512 TODD -A- TODD (STRAWN) SBJ OIL & GAS, LLC 06114 TODD -A- WYATT KDM PRODUCTION CO 02257 TODD -A-16- TODD (SAN ANDRES) BKM PRODUCTION 04562 TODD -16- TODD (SAN ANDRES) BKM PRODUCTION 04352 TODD -17- TODD (GRAYBURG) BKM PRODUCTION 04479 TODD -17- TODD (SAN ANDRES) BKM PRODUCTION 04421 TODD '6' TODD (STRAWN) SBJ OIL & GAS, LLC 07767 TODD "M" TODD (STRAWN) O'RYAN OIL AND GAS 08894 TODD "N" TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 09155 TODD "O" TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 09209 TODD "P" TODD, W. (SAN ANDRES) VANCO OIL & GAS CORP. 09185 TODD "R" TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 09210 TODD "S" TODD (SAN ANDRES) VANCO OIL & GAS CORP. 09186 TODD "SIGMA" VIRLAW (SAN ANDRES, UPPER) VANCO OIL & GAS CORP. 11394 TODD "T" TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 09502 TODD "U" TODD, W. (SAN ANDRES) VANCO OIL & GAS CORP. 09548 TODD "V" HENLAW (GRAYBURG) VANCO OIL & GAS CORP. 10033 TODD "V" TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 10853 TODD "W" TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 10367 TODD "X" TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 10182 TODD "Y" TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 10423 TODD "12" SERIGHT (STRAWN) KATSCO ENERGY, INC. 10534 TODD "47" WYATT WTG EXPLORATION 08297 TODD "67" WYATT O'RYAN OIL AND GAS 07770 TODD BETA TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 11053 TODD CRINOIDAL UNIT TODD, DEEP (CRINOIDAL) O'RYAN OIL AND GAS 02014 TODD ESTATE -A- TODD, DEEP (ELLENBURGER) O'RYAN OIL AND GAS 02015 TODD ESTATE -B- TODD, DEEP (ELLENBURGER) O'RYAN OIL AND GAS 02016 TODD ESTATE -K- TODD (GRAYBURG) L & M OPERATING, INC. 04418 TODD ESTATE -K- TODD (SAN ANDRES) L & M OPERATING, INC. 02033 TODD R-A TODD, SW. (SAN ANDRES, LO.) VANCO OIL & GAS CORP. 10487 TODD RANCH SHANNON (SAN ANDRES) CLARK OIL CO. 10513 TODD RANCH "SA" TODD, NORTHWEST (GRAYBURG) SAFEMARK OIL & GAS, LLC 10775 TODD STATE SHANNON (SAN ANDRES) CLARK OIL CO. 11279 TODD WX-15 TODD (STRAWN) SBJ OIL & GAS, LLC 15530 TODD 10-14 TODD (STRAWN) SBJ OIL & GAS, LLC 15564 TODD 10-15 TODD (STRAWN) SBJ OIL & GAS, LLC 15488 TODD 10-17 TODD (STRAWN) SBJ OIL & GAS, LLC 15544 TODD 67-4 WYATT O'RYAN OIL AND GAS 15150 TODD 68 WYATT RED OAK ENERGY CO 15106 TODD, J. S. DOUBLE -R- (CRINOIDAL) L & M OPERATING, INC. 05809 TODD, J. S. TODD (GRAYBURG) L & M OPERATING, INC. 04584 TODD, J. S. TODD (GRAYBURG) OVERTON PARK OIL & GAS LP 12956 TODD, J. S. TODD (SAN ANDRES) L & M OPERATING, INC. 03036 TODD, J. S. TODD (SAN ANDRES) OVERTON PARK OIL & GAS LP 04348 TODD, J. S. TODD, SW. (SAN ANDRES, LO.) KIDD JOHNSON OIL & GAS, LLC 04491 TODD, J. S. -A- TODD (GRAYBURG) OVERTON PARK OIL & GAS LP 12949


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ TODD, J. S. -B- TODD (SAN ANDRES) OVERTON PARK OIL & GAS LP 02035 TODD, J. S. -C- TODD (GRAYBURG) OVERTON PARK OIL & GAS LP 02027 TODD, J. S. -C- TODD (SAN ANDRES) OVERTON PARK OIL & GAS LP 02036 TODD, J. S. UNIT BLOCK TODD, DEEP (ELLENBURGER) O'RYAN OIL AND GAS 02021 TODD, J. S., -A- TODD (GRAYBURG) OVERTON PARK OIL & GAS LP 04974 TODD, J. S., -A- TODD (SAN ANDRES) OVERTON PARK OIL & GAS LP 02034 TODD, J. S., -B- TODD (GRAYBURG) OVERTON PARK OIL & GAS LP 04527 TODD, J. S., -D- TODD (SAN ANDRES) OVERTON PARK OIL & GAS LP 05057 TODD, J. S., -E- TODD (SAN ANDRES) D AND B OIL 05025 TODD, J. S., A R/A A WYATT O'RYAN OIL AND GAS 02258 TODD, J. S., ET AL TODD (STRAWN) SBJ OIL & GAS, LLC 06706 TODD, J.S. "G" TODD (GRAYBURG) OVERTON PARK OIL & GAS LP 13524 TODD, WILLIAMS TODD (SAN ANDRES) OVERTON PARK OIL & GAS LP 04640 TOM GLAVINE 31-32 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 19416 TOMLINSON, W. R. ESTATE P-C (STRAWN) DAMRON ENERGY, LLC 05523 TONEY LITTLE BOOT (KING) MASA ENERGY LLC 12774 TONEY "M" WINTERS, NORTH (KING SD.) MASA ENERGY LLC 14472 TONNE FUNK (SAN ANDRES) ROCA PRODUCTION, INC. 18507 TONNE GRAPE CREEK (CANYON) CUMMING COMPANY, INC. THE 15493 TOPAZ SHEEP MOUNTAIN (CONSOLIDATED) HUNT OIL COMPANY 17789 TOPHER 2 SPRABERRY (TREND AREA) R 40 EXC CROWNQUEST OPERATING, LLC 20148 TORI SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16200 TORPEDO 1048 A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 20156 TORPEDO 1048 B SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 20177 TORPEDO 1048 C SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 20759 TORRES COW KILLER (GOEN) CONCHO OILFIELD SERV & OPER CO. 17955 TOUNGET EDMONDSON (L. GARDNER) TKP PETROLEUM, INC. 12715 TOUNGET, C. F. -A- LINDEMANN (JENNINGS) REVARD PETROLEUM, L.L.C. 00814 TOUNGET, C. F. -A- LINDEMANN (MORRIS SAND) REVARD PETROLEUM, L.L.C. 00822 TPC "25" SPRABERRY (TREND AREA) HUNT OIL COMPANY 16785 TPC "36" SPRABERRY (TREND AREA) HUNT OIL COMPANY 16738 TRACY OZONA, NE. (CANYON 7520) BARRON PETROLEUM LLC 18478 TRAMMELL, MINNIE -A- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01355 TRANSCONTINENTAL PHILLIPS IRION, W. (CANYON) FORTUNE ENERGY, INC. 07899 TREADWELL FORT MCKAVITT (CANYON) OZARK EXPLORATION, INC. 13409 TREADWELL FORT MCKAVITT, N. (CANYON LO.) BANKHEAD OPERATING CORP. 05928 TREADWELL TRUST -19- FORT MCKAVITT, N. (CANYON) BOAZ ENERGY II OPERATING, LLC 16979 TREADWELL TRUST -19-A FORT MCKAVITT, N. (CANYON) BOAZ ENERGY II OPERATING, LLC 17128 TREADWELL TRUST -19-B FORT MCKAVITT, N. (CANYON) BOAZ ENERGY II OPERATING, LLC 17617 TREADWELL, J. H. FORT MCKAVITT, N. (CANYON LO.) GOLDEN SPECIALTIES OIL & GAS 05949 TREADWELL, J. M. CAMAR, N. (CANYON SAND) BUD OIL, INC. 05553 TREADWELL, J. M. F & H (CISCO) DAMRON ENERGY, LLC 03468 TREADWELL, J. M. FORT MCKAVITT, N. (CANYON LO.) BUD OIL, INC. 05914 TREADWELL, J. M. FORT MCKAVITT, N. (PALO PINTO) BUD OIL, INC. 05935 TREADWELL, JOHN H. 70 FORT MCKAVITT, N. (CANYON LO.) RIDGELINE ENERGY INC. 08624 TRES HOMBRES HONDO PIPELINE (ELLENBURGER) LEGACY RESERVES OPERATING LP 14301 TRIGG SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04715 TRIGG "18" SPRABERRY (TREND AREA) DE3 OPERATING LLC 11287 TRIGG "18B" SPRABERRY (TREND AREA) DE3 OPERATING LLC 17176 TRIGG "18C" SPRABERRY (TREND AREA) DE3 OPERATING LLC 17219 TRIGG "19A" SPRABERRY (TREND AREA) DE3 OPERATING LLC 17218


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ TRIGG 18 A SPRABERRY (TREND AREA) DE3 OPERATING LLC 11474 TRIGG, KATHERINE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14161 TRIGG, MARY KATHERINE RED HOUSE (FUSSELMAN) ENDEAVOR ENERGY RESOURCES L.P. 13199 TRIGG, MARY KATHERINE TRIGG (STRAWN) ENDEAVOR ENERGY RESOURCES L.P. 14978 TRIPLE WATER VALLEY (SAN ANDRES) GREEN, ROY W. OIL & GAS 02095 TRIPLE WATER VALLEY (SAN ANGELO) GREEN, ROY W. OIL & GAS 07877 TSRH SPRABERRY (TREND AREA) BTA OIL PRODUCERS, LLC 17187 TSRH UNIT 28N LIN (WOLFCAMP) EARTHSTONE OPERATING, LLC 18693 TSRH UNIT 28S SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19430 TSRH WEST 19-20 A SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20484 TSRH WEST 19-20 B SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20485 TSRH WEST 19-20 C SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20486 TUCKER TOE NAIL (HARKEY) WILLIAMS OIL COMPANY 06364 TUCKER TOE NAIL (STRAWN) WILLIAMS OIL COMPANY 14496 TUCKER RE 1 194 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18985 TUCKER RE 1 194 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20612 TUCKER RE 1 194 ALLOC 00 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20614 TUCKER RE 1 194 ALLOC 03 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20530 TUCKER RE 1 194 ALLOC 03 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20613 TUCKER RE 1 194 ALLOC 04 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20616 TUCKER RE 1 194 ALLOC 05 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20278 TUCKER RE 1 194 ALLOC 05 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20617 TUCKER RE 1 194 ALLOC 06 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20618 TUCKER UNIT 1 RE 1 184 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19348 TUCKER UNIT 2 RE 1 184 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19344 TUCKER UNIT 3 RE 1 184 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19345 TUCKER 166 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 18802 TULLOS ARDEN, SE. (WOLFCAMP) OXY USA INC. 07007 TULLOS "A" ARDEN, SE. (WOLFCAMP) BUSTAMANTE OIL COMPANY 11741 TULLOS 859 JUNE ANN (PENNSYLVANIAN) TXP, INCORPORATED 19715 TURNER SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 06480 TURNER SPRABERRY (TREND AREA) TURNER PRODUCTION 07660 TURNER T. D. (6575) BOB HUGHES OIL COMPANY, LLC 10948 TURNER "A" SPRABERRY (TREND AREA CL. FK.) APACHE CORPORATION 16210 TURNER #1128 T. D. (6575) B-J OIL CO. 13873 TURNER '1201' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17591 TURNER "A" HALL (SAN ANDRES) FARMER, R. C. JR. 12763 TURNER "A" SPRABERRY (TREND AREA) APACHE CORPORATION 07891 TURNER "C" SPRABERRY (TREND AREA) APACHE CORPORATION 08035 TURNER "1206" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17642 TURNER "4" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17596 TURNER AR UNIT LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18912 TURNER AR UNIT A LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18678 TURNER AR UNIT B LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19225 TURNER AR UNIT C LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19216 TURNER PROPERTIES-COPELAND JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 08199 TURNER PROPERTIES-HICKS JAMESON, SW. (STRAWN) JATAM INC. 06846 TURNER PROPERTIES-TOMMY HENDRY JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 07879 TURNER PROPERTIES-TUBB JAMESON (STRAWN) BUSTAMANTE OIL COMPANY 08098 TURNER RANCH SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 18064 TURNER RANCH #44 T. D. (6575) THP OPERATING LLC 15064


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ TURNER RANCH T. D. 24 JUNE ANN (ELLENBURGER) REDBUD E & P, INC. 15795 TURNER RANCH T. D. 43 JUNE ANN (CISCO) BANNER OPERATING, LLC 18160 TURNER RANCH T. D. 43 JUNE ANN (STARKEY-CANYON SD) BANNER OPERATING, LLC 16332 TURNER RANCH T. D. 44 T. D. (6575) REDBUD E & P, INC. 15737 TURNER RANCH T.D. 1116 JUNE ANN (PENNSYLVANIAN) REDBUD E & P, INC. 19811 TURNER RANCH T.D. 1128 FUNK (SAN ANDRES) REDBUD E & P, INC. 16945 TURNER RANCH T.D. 1128 T. D. (6575) REDBUD E & P, INC. 15917 TURNER RANCH T.D. 1132 T. D. (6575) REDBUD E & P, INC. 15827 TURNER RANCH T.D. 25 JUNE ANN (STARKEY-CANYON SD) BANNER OPERATING, LLC 19139 TURNER RANCH T.D. 26 JUNE ANN (PENNSYLVANIAN) BANNER OPERATING, LLC 19772 TURNER RANCH T.D. 27 JUNE ANN (PENNSYLVANIAN) BANNER OPERATING, LLC 19771 TURNER RANCH T.D. 40 FUNK (SAN ANDRES) REDBUD E & P, INC. 17045 TURNER RANCH T.D. 45 JUNE ANN (PENNSYLVANIAN) BANNER OPERATING, LLC 19779 TURNER RANCH T.D. 8 JUNE ANN (PENNSYLVANIAN) BANNER OPERATING, LLC 19855 TURNER RANCH WEST JUNE ANN (PENNSYLVANIAN) REDBUD E & P, INC. 19874 TURNER RANCH 1127 FUNK (SAN ANDRES) REDBUD E & P, INC. 18158 TURNER 1208 SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 19025 TURNER, MAXWELL HALL (SAN ANDRES) BUSTAMANTE OIL COMPANY 09702 TWEEDY ATKINSON, W. (SAN ANGELO) CAMINAR OIL & GAS, LLC 09252 TWEEDY BROOKS (SAN ANGELO) FRATELLI EXPLORATION, L.P. 09625 TWEEDY "A" BROOKS (SAN ANGELO) FRATELLI EXPLORATION, L.P. 10832 TWEEDY "D" ATKINSON, W. (SAN ANGELO) CAMINAR OIL & GAS, LLC 12107 TWEEDY "S" ATKINSON, W. (SAN ANGELO) CAMINAR OIL & GAS, LLC 11715 TXL DAVIS (DEVONIAN) KAISER-FRANCIS OIL COMPANY 07815 TXL DAVIS (PENNSYLVANIAN) KAISER-FRANCIS OIL COMPANY 05735 TXL PEGASUS (CONSOLIDATED) COG OPERATING LLC 17151 TXL PRICE (GRAYBURG) BASIC ENERGY SERVICES, L.P. 16428 TXL PRICE (GRAYBURG) DLB OIL & GAS INC. 02676 TXL SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 12824 TXL -A- PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 03771 TXL -D- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13961 TXL -G- SPRABERRY (TREND AREA) HUNT OIL COMPANY 01501 TXL -P- DAVIS (PENNSYLVANIAN) ENDEAVOR ENERGY RESOURCES L.P. 08430 TXL -P- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 18496 TXL 'W' 33 SPRABERRY (TREND AREA) SM ENERGY COMPANY 15198 TXL '11' SPRABERRY (TREND AREA) COG OPERATING LLC 18195 TXL '15' SPRABERRY (TREND AREA) COG OPERATING LLC 17970 TXL '17' SPRABERRY (TREND AREA) COG OPERATING LLC 18076 TXL '21' SPRABERRY (TREND AREA) COG OPERATING LLC 17975 TXL '21' A SPRABERRY (TREND AREA) SM ENERGY COMPANY 21016 TXL "AE" TEXEL (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 03816 TXL "AE" TEXEL (ELLENBURGER) ENDEAVOR ENERGY RESOURCES L.P. 01987 TXL "AE" TEXEL (PENNSYLVANIAN) ENDEAVOR ENERGY RESOURCES L.P. 12717 TXL "CC" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17152 TXL "DD" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17153 TXL "F" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17155 TXL "G" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17156 TXL "I" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17157 TXL "JJ" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17158 TXL "M" PEGASUS, S. (BEND) COG OPERATING LLC 20860 TXL "R" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17183


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ TXL "S" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17159 TXL "S" 39-1 SPRABERRY (TREND AREA) OVINTIV USA INC. 14782 TXL "S" 47-2 SPRABERRY (TREND AREA) OVINTIV USA INC. 14794 TXL "S" 47-3 SPRABERRY (TREND AREA) OVINTIV USA INC. 14798 TXL "SS" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17469 TXL "U" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17144 TXL "U" PEGASUS (DEVONIAN) XTO ENERGY INC. 13670 TXL "VV" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17166 TXL "19" SPRABERRY (TREND AREA) COG OPERATING LLC 16304 TXL "23" SPRABERRY (TREND AREA) COG OPERATING LLC 17805 TXL "31" SPRABERRY (TREND AREA) COG OPERATING LLC 16786 TXL "35" SPRABERRY (TREND AREA) COG OPERATING LLC 17781 TXL "39" SPRABERRY (TREND AREA) COG OPERATING LLC 17715 TXL "9" SPRABERRY (TREND AREA) COG OPERATING LLC 17847 TXL "9" A SPRABERRY (TREND AREA) SM ENERGY COMPANY 21017 TXL CAITLIN (SA) F SPRABERRY (TREND AREA) SM ENERGY COMPANY 20047 TXL CAITLIN (SA) G SPRABERRY (TREND AREA) SM ENERGY COMPANY 20022 TXL CAITLIN (SA) H SPRABERRY (TREND AREA) SM ENERGY COMPANY 20021 TXL CAITLIN (SA) I SPRABERRY (TREND AREA) SM ENERGY COMPANY 20869 TXL JAMIE (SA) A SPRABERRY (TREND AREA) SM ENERGY COMPANY 19102 TXL JAMIE (SA) B SPRABERRY (TREND AREA) SM ENERGY COMPANY 19103 TXL M SPRABERRY (TREND AREA) COG OPERATING LLC 16873 TXL PEGASUS PEGASUS, S. (BEND) COG OPERATING LLC 13268 TXL STATE U A3 SPRABERRY (TREND AREA) COG OPERATING LLC 20777 TXL STATE U A5 SPRABERRY (TREND AREA) COG OPERATING LLC 20792 TXL STATE U A6 SPRABERRY (TREND AREA) COG OPERATING LLC 20800 TXL STATE U A7 SPRABERRY (TREND AREA) COG OPERATING LLC 20509 TXL STATE U A8 SPRABERRY (TREND AREA) COG OPERATING LLC 20806 TXL T "27" SPRABERRY (TREND AREA) COG OPERATING LLC 17775 TXL T1 SPRABERRY (TREND AREA) COG OPERATING LLC 19675 TXL T2 SPRABERRY (TREND AREA) COG OPERATING LLC 19698 TXL T3 SPRABERRY (TREND AREA) COG OPERATING LLC 19702 TXL W '33' "A" SPRABERRY (TREND AREA) SM ENERGY COMPANY 15849 TXL WEST "35" SPRABERRY (TREND AREA) COG OPERATING LLC 17566 TXL WEST "37" SPRABERRY (TREND AREA) COG OPERATING LLC 17685 TXL WEST "41" SPRABERRY (TREND AREA) COG OPERATING LLC 17600 TXL-POWELL PEGASUS (CONSOLIDATED) BEACH EXPLORATION, INC. 17174 TXL-POWELL A11 PEGASUS (CONSOLIDATED) COG OPERATING LLC 21041 TXL-POWELL A14 PEGASUS (CONSOLIDATED) COG OPERATING LLC 21040 TXL-POWELL A2 PEGASUS (CONSOLIDATED) COG OPERATING LLC 21043 TXL-POWELL A3 PEGASUS (CONSOLIDATED) COG OPERATING LLC 21044 TXL-POWELL A4 PEGASUS (CONSOLIDATED) COG OPERATING LLC 21045 TXL-POWELL A5 PEGASUS (CONSOLIDATED) COG OPERATING LLC 21042 TXL-POWELL A7 PEGASUS (CONSOLIDATED) COG OPERATING LLC 21046 TXL-POWELL A9 PEGASUS (CONSOLIDATED) COG OPERATING LLC 21039 TXL-27 SPRABERRY (TREND AREA) OVINTIV USA INC. 09242 TYLER SPRABERRY (TREND AREA) SM ENERGY COMPANY 16094 TYREE ELKSON (CROSS CUT SAND) J2 PETROLEUM LLC 15125 TYREE, ROY TYREE CREMSON OIL & GAS 10557 U.T. 3064 "A" ANDREW A. (CANYON) MEADCO PROPERTIES 13710 U.T. 3064 "A" LONESOME REEF II (WOLFCAMP) MEADCO PROPERTIES 14474


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UL BOSS HOGG A SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20959 UL BOSS HOGG C SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20948 UL BOSS HOGG G SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20950 UL BOSS HOGG H SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20951 UL BOSS HOGG I SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20957 UL REAGAN RE-WORK FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 15041 UL REAGAN 2000 FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 15039 UL REAGAN 2001 FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 15040 UL 49-3 FARMER (SAN ANDRES) RWA, LLC 18285 ULMER SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11850 ULMER "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13063 UMIVERSITY BLOCK 46 FARMER (SAN ANDRES) OTB OPERATING, LLC 14826 UNION PACIFIC OZONA (CANYON SAND) EPIC PERMIAN OPERATING, LLC 19110 UNION PACIFIC OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 15342 UNION PACIFIC "7" REFOIL (CLEAR FORK UPPER) EPIC PERMIAN OPERATING, LLC 13778 UNION STATE "A" FARMER (SAN ANDRES) LAST DOLLAR LLC 11078 UNION-STATE FARMER (SAN ANDRES) LAST DOLLAR LLC 10870 UNIV. "26-29" BACHELOR HILL (GRAYBURG) VINSON EXPLORATION 09922 UNIV. "26-29" A BACHELOR HILL (GRAYBURG) VINSON EXPLORATION 11381 UNIV. "29-D" BACHELOR HILL (GRAYBURG) VINSON EXPLORATION 10159 UNIV. "29-K" BACHELOR HILL (GRAYBURG) VINSON EXPLORATION 11916 UNIV. 35-29 BACHELOR HILL (GRAYBURG) VINSON EXPLORATION 13406 UNIVDANA SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 18978 UNIVERSITY WILDCAT TRISTAR EXPLORATION, INC 17002 UNIVERSITY BIG LAKE APACHE CORPORATION 00228 UNIVERSITY BIG LAKE (ELLENBURGER) APACHE CORPORATION 12586 UNIVERSITY BIG LAKE (FUSSELMAN) APACHE CORPORATION 13313 UNIVERSITY BIG LAKE (SPRABERRY) APACHE CORPORATION 04420 UNIVERSITY BIG LAKE (SPRABERRY) O'RYAN OIL AND GAS 04307 UNIVERSITY BLOCK 4 (DEVONIAN) CAMBRIAN MANAGEMENT, LTD. 02335 UNIVERSITY BLOCK 49 (2450) ENDEAVOR ENERGY RESOURCES L.P. 09888 UNIVERSITY CROCKETT UPLAND PRODUCTION COMPANY 00409 UNIVERSITY FARMER (SAN ANDRES) HALL, E.G., OIL CO., INC. 00451 UNIVERSITY FARMER (SAN ANDRES) L & M OPERATING, INC. 07954 UNIVERSITY FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 08046 UNIVERSITY FARMER (SAN ANDRES) WYNCO ENERGY, INC. 05675 UNIVERSITY HOWARD DRAW (SHALLOW) QUATRO OIL AND GAS, INC. 08991 UNIVERSITY SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 09766 UNIVERSITY (H) "12G" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08880 UNIVERSITY (H) "15-50" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 09457 UNIVERSITY (H) "16" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07556 UNIVERSITY (H) "18G" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 09558 UNIVERSITY (H) "23" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07569 UNIVERSITY (H) "23A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07704 UNIVERSITY (H) "23B" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07705 UNIVERSITY (H) "23C" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 09620 UNIVERSITY (H) "4GB" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 09018 UNIVERSITY (H) "48-14" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 10636 UNIVERSITY (H) "5G" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08875 UNIVERSITY (H) "7G" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08830 UNIVERSITY (H) "7GA" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08876


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY (H) "8C" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 09384 UNIVERSITY (H) "8E" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 10334 UNIVERSITY (H) "9GA" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08895 UNIVERSITY (M) -AA- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00474 UNIVERSITY (M) -BB- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00475 UNIVERSITY (M) -DD- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00477 UNIVERSITY (M) -JJ- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00478 UNIVERSITY (M) -10- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07497 UNIVERSITY (M) -11- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 05467 UNIVERSITY (M) -11C- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 06719 UNIVERSITY (M) -12- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 05237 UNIVERSITY (M) -12C- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 06979 UNIVERSITY (M) -13- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07520 UNIVERSITY (M) -9- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 06779 UNIVERSITY (M) "A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 12656 UNIVERSITY (M) "A" -1 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 13158 UNIVERSITY (M) "A" 4 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 13259 UNIVERSITY (M) "B" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 12744 UNIVERSITY (M) "B" 2 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 13219 UNIVERSITY (M) "11-A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 06825 UNIVERSITY (M) "12-B" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07367 UNIVERSITY (M) "51-7A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 09986 UNIVERSITY (M) "8" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07351 UNIVERSITY (M) 13 "B" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08640 UNIVERSITY (M) 13 "S" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07388 UNIVERSITY (M) 19 "A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 11890 UNIVERSITY (M) 5 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 11054 UNIVERSITY (M) 6 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 14454 UNIVERSITY (M) 6A FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 14455 UNIVERSITY (M) 7 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 14456 UNIVERSITY (M) 8 "A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08237 UNIVERSITY (M) 8 "B" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08726 UNIVERSITY (P) 11-12 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 09492 UNIVERSITY (P) 4-43 BARNHART, NE. (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 09107 UNIVERSITY (P) 4-47 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 10707 UNIVERSITY (P) 5-43 FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 11547 UNIVERSITY (P) 5-43 "B" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 11839 UNIVERSITY -A- BLOCK 44 (SHALLOW) LINDENMUTH & ASSOCIATES, INC. 00244 UNIVERSITY -A- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00479 UNIVERSITY -A- JOHN SCOTT (GRAYBURG) DARCO OPERATORS 04751 UNIVERSITY -A- 1-10 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 09767 UNIVERSITY -ACO- WEGER, WEST (GRAYBURG) L & M OPERATING, INC. 06097 UNIVERSITY -AL- CROCKETT UPLAND PRODUCTION COMPANY 00411 UNIVERSITY -AU- FLAT ROCK (SPRABERRY) ENDEAVOR ENERGY RESOURCES L.P. 00498 UNIVERSITY -B- FARMER (SAN ANDRES) NORDSTRAND ENGINEERING, INC. 00480 UNIVERSITY -B- JOHN SCOTT (GRAYBURG) DARCO OPERATORS 04752 UNIVERSITY -B- 110 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 09768 UNIVERSITY -BR- GUNNX BRIDWELL OIL CO. 07047 UNIVERSITY -B15- BLOCK 4 (DEVONIAN) MHM PIPELINE CO., INC. 03540 UNIVERSITY -C- BLOCK 49 (2450) FIELDS OIL & GAS COMPANY, LLC 02357 UNIVERSITY -C- CROCKETT PHARAOH OIL & GAS, INC. 00415


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY -C- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00481 UNIVERSITY -CN- FARMER (SAN ANDRES) EGI, INC. 00473 UNIVERSITY -D- CROCKETT UPLAND PRODUCTION COMPANY 00412 UNIVERSITY -DY- JOHN SCOTT (GRAYBURG) BASA RESOURCES, INC. 04750 UNIVERSITY -E- BLOCK 49 (2450) FIELDS OIL & GAS COMPANY, LLC 02405 UNIVERSITY -E- WEGER, WEST (GRAYBURG) L & M OPERATING, INC. 02548 UNIVERSITY -F- BLOCK 49 (2450) FIELDS OIL & GAS COMPANY, LLC 02406 UNIVERSITY -F- CROCKETT UPLAND PRODUCTION COMPANY 00414 UNIVERSITY -I- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 00459 UNIVERSITY -K- CROCKETT MAS OPERATING CO. 00401 UNIVERSITY -K- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 00461 UNIVERSITY -L- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 09750 UNIVERSITY -M- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 09749 UNIVERSITY -N- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 09748 UNIVERSITY -O- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 09747 UNIVERSITY -P- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 00462 UNIVERSITY -R- V-BAR (SAN ANDRES) L & M OPERATING, INC. 02082 UNIVERSITY -S- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 00463 UNIVERSITY -X- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 00464 UNIVERSITY -Y- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 00465 UNIVERSITY -Z- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 00466 UNIVERSITY -10- FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 07882 UNIVERSITY -11- FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 07799 UNIVERSITY -11- FARMER (SAN ANDRES) SMC OIL & GAS, INC. 08016 UNIVERSITY -11- FARMER (SAN ANDRES) WYNCO ENERGY, INC. 05821 UNIVERSITY -12- FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 08277 UNIVERSITY -12- FARMER (SAN ANDRES) WYNCO ENERGY, INC. 05880 UNIVERSITY -15- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 05646 UNIVERSITY -17- FARMER (SAN ANDRES) EGI, INC. 13031 UNIVERSITY -2- BAKER RANCH (CANYON) BREITBURN OPERATING L.P. 11319 UNIVERSITY -2- FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 08152 UNIVERSITY -22- BARNHART, SOUTH (ELLENBURGER) LEGACY RESERVES OPERATING LP 06887 UNIVERSITY -22- FARMER (SAN ANDRES) OTB OPERATING, LLC 06786 UNIVERSITY -22A- FARMER (SAN ANDRES) OTB OPERATING, LLC 06884 UNIVERSITY -23B- SPRABERRY (TREND AREA) APACHE CORPORATION 16158 UNIVERSITY -23C- SPRABERRY (TREND AREA) APACHE CORPORATION 16159 UNIVERSITY -23D- SPRABERRY (TREND AREA) APACHE CORPORATION 16160 UNIVERSITY -23W- FARMER (SAN ANDRES) OTB OPERATING, LLC 08690 UNIVERSITY -24- FARMER (SAN ANDRES) TEJAS JACK SALES, INC. 07898 UNIVERSITY -24- FARMER (SAN ANDRES) WYNCO ENERGY, INC. 07745 UNIVERSITY -24B- SPRABERRY (TREND AREA) APACHE CORPORATION 16161 UNIVERSITY -24C- SPRABERRY (TREND AREA) APACHE CORPORATION 16162 UNIVERSITY -24D- SPRABERRY (TREND AREA) APACHE CORPORATION 16163 UNIVERSITY -25B- SPRABERRY (TREND AREA) APACHE CORPORATION 16165 UNIVERSITY -25C- SPRABERRY (TREND AREA) APACHE CORPORATION 16164 UNIVERSITY -26- TEXON, S (GRAYBURG) ENERGY PRODUCTION CORPORATION 07169 UNIVERSITY -26B- SPRABERRY (TREND AREA) APACHE CORPORATION 16168 UNIVERSITY -26C- SPRABERRY (TREND AREA) APACHE CORPORATION 16169 UNIVERSITY -26D- SPRABERRY (TREND AREA) APACHE CORPORATION 16170 UNIVERSITY -3- BLOCK 47 (SHALLOW) WYNCO ENERGY, INC. 07366 UNIVERSITY -3B- SPRABERRY (TREND AREA) APACHE CORPORATION 16166


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY -3C- SPRABERRY (TREND AREA) APACHE CORPORATION 16167 UNIVERSITY -3N- FARMER (SAN ANDRES) OTB OPERATING, LLC 08922 UNIVERSITY -47- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07022 UNIVERSITY -5- SPRABERRY (TREND AREA) APACHE CORPORATION 18493 UNIVERSITY -5A- SPRABERRY (TREND AREA) APACHE CORPORATION 18494 UNIVERSITY -50- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07029 UNIVERSITY -6- BLOCK 49 (2450) GOOCH & ISOM 08920 UNIVERSITY -6C- SPRABERRY (TREND AREA) APACHE CORPORATION 16157 UNIVERSITY -6D- SPRABERRY (TREND AREA) APACHE CORPORATION 16156 UNIVERSITY -7- BLOCK 47 (SHALLOW) WYNCO ENERGY, INC. 08115 UNIVERSITY -8- BLOCK 47 (SHALLOW) WYNCO ENERGY, INC. 07001 UNIVERSITY -8- SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 03713 UNIVERSITY -9- BAKER RANCH (CANYON) OXY USA INC. 11321 UNIVERSITY -9- FARMER (SAN ANDRES) WYNCO ENERGY, INC. 07150 UNIVERSITY -9B- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07951 UNIVERSITY '1-22' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18163 UNIVERSITY '10-C' SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 18450 UNIVERSITY '10-16' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17997 UNIVERSITY '10-17' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17944 UNIVERSITY '12-12A' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18321 UNIVERSITY '12' WILDCAT TRISTAR EXPLORATION, INC 15280 UNIVERSITY '13' SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 17650 UNIVERSITY '15B' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18769 UNIVERSITY '2W' SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 18277 UNIVERSITY '3-4A' SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 20189 UNIVERSITY '4-20' SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18072 UNIVERSITY '50 A' HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 18488 UNIVERSITY "A" PRICE (GRAYBURG) GOOCH & ISOM 09892 UNIVERSITY "A" PRICE (GRAYBURG) SILVER OIL & GAS INC. 09041 UNIVERSITY "A" SPRABERRY (TREND AREA) MEWBOURNE OIL COMPANY 09326 UNIVERSITY "A" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10112 UNIVERSITY "A" SWD PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 13730 UNIVERSITY "AA" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09659 UNIVERSITY "AU" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17772 UNIVERSITY "B" PRICE (GRAYBURG) GOOCH & ISOM 10447 UNIVERSITY "B" SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 09764 UNIVERSITY "BB" SPRABERRY (TREND AREA) BRAZOS PETROLEUM, INC. 09657 UNIVERSITY "BL" BIG LAKE (DEAN SAND) ENDEAVOR ENERGY RESOURCES L.P. 05909 UNIVERSITY "D" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 09118 UNIVERSITY "FF" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00468 UNIVERSITY "G" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00469 UNIVERSITY "H" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00470 UNIVERSITY "I" FARMER (SAN ANDRES) VANCO OIL & GAS CORP. 14827 UNIVERSITY "1-10" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16742 UNIVERSITY "1-13" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16691 UNIVERSITY "1-21" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16744 UNIVERSITY "1-27" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16336 UNIVERSITY "1-32" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16296 UNIVERSITY "1-33" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16344 UNIVERSITY "1-34" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16375 UNIVERSITY "1-4" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16764


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY "1-9" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16751 UNIVERSITY "1" FARMER (SAN ANDRES) WARREN AMERICAN OIL COMPANY, LLC 09562 UNIVERSITY "10-A" BENEDUM (FUSSELMAN) RP OPERATING, L.L.C. 15681 UNIVERSITY "10-C" BENEDUM (FUSSELMAN) RP OPERATING, L.L.C. 10896 UNIVERSITY "10-D" BENEDUM (FUSSELMAN) RP OPERATING, L.L.C. 11261 UNIVERSITY "10-1" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16484 UNIVERSITY "10-10" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16290 UNIVERSITY "10-14" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16804 UNIVERSITY "10-19" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17531 UNIVERSITY "10-2" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16298 UNIVERSITY "10-3" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16648 UNIVERSITY "10-9" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16379 UNIVERSITY "10" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07701 UNIVERSITY "11-A" FARMER (SAN ANDRES) WYNCO ENERGY, INC. 06762 UNIVERSITY "11" BIG LAKE ENERGY PRODUCTION CORPORATION 15478 UNIVERSITY "11" BLOCK 44 (LOWER ELLENBURGER) EP ENERGY E&P COMPANY, L.P. 16198 UNIVERSITY "11" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07329 UNIVERSITY "12-A" FARMER (SAN ANDRES) WYNCO ENERGY, INC. 07151 UNIVERSITY "12-B" FARMER (SAN ANDRES) WYNCO ENERGY, INC. 07451 UNIVERSITY "12-12" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16384 UNIVERSITY "12-23" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10703 UNIVERSITY "12" BIG LAKE ENERGY PRODUCTION CORPORATION 15952 UNIVERSITY "12B" BIG LAKE ENERGY PRODUCTION CORPORATION 15944 UNIVERSITY "13-2-2" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13231 UNIVERSITY "13-2" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10800 UNIVERSITY "13" BENEDUM (FUSSELMAN) APACHE CORPORATION 14885 UNIVERSITY "13" CUESTA HILL (CANYON) WTG EXPLORATION 09411 UNIVERSITY "13" CUESTA HILL (STRAWN) WTG EXPLORATION 16083 UNIVERSITY "13" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 09876 UNIVERSITY "14" FARMER (SAN ANDRES) LAST DOLLAR LLC 07348 UNIVERSITY "15-18" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17432 UNIVERSITY "15-47" FARMER (SAN ANDRES) JMW RESOURCES, INC. 09484 UNIVERSITY "15" BLOCK 49 (2450) GOOCH & ISOM 08903 UNIVERSITY "15" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07330 UNIVERSITY "15" SHEEP MOUNTAIN (CONSOLIDATED) PIONEER NATURAL RES. USA, INC. 18229 UNIVERSITY "15" SPRABERRY (TREND AREA) FOSSIL PETROLEUM LLC 10509 UNIVERSITY "15" "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12144 UNIVERSITY "16" CHRIS BEARD (CLEARFORK) RED STAG ENERGY, LLC 16799 UNIVERSITY "17-D" SPRABERRY (TREND AREA) JAY MANAGEMENT COMPANY, LLC 09077 UNIVERSITY "17" FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 12334 UNIVERSITY "17" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 10876 UNIVERSITY "17" SPRABERRY (TREND AREA) APACHE CORPORATION 08701 UNIVERSITY "19-A" BENEDUM (SPRABERRY) HIBERNIA RESOURCES III, LLC 05606 UNIVERSITY "19-G" FARMER (SAN ANDRES) LAST DOLLAR LLC 15006 UNIVERSITY "19-G" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 09434 UNIVERSITY "19-GA" FARMER (SAN ANDRES) LAST DOLLAR LLC 09827 UNIVERSITY "2-10" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16593 UNIVERSITY "2-10A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16565 UNIVERSITY "2-14" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16445 UNIVERSITY "2-18" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17468 UNIVERSITY "2-20" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16589


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY "2-21" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16806 UNIVERSITY "2-22" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17303 UNIVERSITY "2-22A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17684 UNIVERSITY "2-28" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17315 UNIVERSITY "2-30" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17319 UNIVERSITY "2-33" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16872 UNIVERSITY "2-33A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16677 UNIVERSITY "2-34" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17712 UNIVERSITY "2-35C" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17859 UNIVERSITY "2-4" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16268 UNIVERSITY "2-7" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17818 UNIVERSITY "2" BIG LAKE ENERGY PRODUCTION CORPORATION 12554 UNIVERSITY "2" FARMER (SAN ANDRES) OTB OPERATING, LLC 09505 UNIVERSITY "2" SPRABERRY (TREND AREA) APACHE CORPORATION 11979 UNIVERSITY "2A" BIG LAKE ENERGY PRODUCTION CORPORATION 12612 UNIVERSITY "2M" BIG LAKE ENERGY PRODUCTION CORPORATION 15267 UNIVERSITY "20" SHEEP MOUNTAIN (CONSOLIDATED) HIBERNIA RESOURCES III, LLC 17936 UNIVERSITY "20" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08851 UNIVERSITY "23" SPRABERRY (TREND AREA) APACHE CORPORATION 15416 UNIVERSITY "24-A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08015 UNIVERSITY "24" SPRABERRY (TREND AREA) APACHE CORPORATION 15417 UNIVERSITY "24" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16574 UNIVERSITY "24" WEGER (SAN ANDRES) OVERTON PARK OIL & GAS LP 08952 UNIVERSITY "25-A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08023 UNIVERSITY "25" HOWARD DRAW (SHALLOW) QUATRO OIL AND GAS, INC. 08993 UNIVERSITY "25" SPRABERRY (TREND AREA) APACHE CORPORATION 15418 UNIVERSITY "26" HOWARD DRAW (SHALLOW) QUATRO OIL AND GAS, INC. 08992 UNIVERSITY "26" SPRABERRY (TREND AREA) APACHE CORPORATION 15419 UNIVERSITY "29-30E" OZONA (CANYON SAND, OIL) THOMPSON, J. CLEO 09859 UNIVERSITY "29-35" BACHELOR HILL (GRAYBURG) VINSON EXPLORATION 11233 UNIVERSITY "3-A" BLOCK 47 (SHALLOW) WYNCO ENERGY, INC. 08114 UNIVERSITY "3-B" BLOCK 47 (SHALLOW) WYNCO ENERGY, INC. 11689 UNIVERSITY "3-1" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17399 UNIVERSITY "3-13" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17516 UNIVERSITY "3-13A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16493 UNIVERSITY "3-14" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16524 UNIVERSITY "3-15" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16660 UNIVERSITY "3-16" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16382 UNIVERSITY "3-17" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16376 UNIVERSITY "3-19" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17382 UNIVERSITY "3-20" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16449 UNIVERSITY "3-21" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17729 UNIVERSITY "3-26" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16517 UNIVERSITY "3-28" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16468 UNIVERSITY "3-31" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16499 UNIVERSITY "3-32" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16718 UNIVERSITY "3-33" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16497 UNIVERSITY "3-35" SHEEP MOUNTAIN (CONSOLIDATED) PIONEER NATURAL RES. USA, INC. 17132 UNIVERSITY "3-4" BENEDUM (FUSSELMAN) HIBERNIA RESOURCES III, LLC 15271 UNIVERSITY "3-4B" BENEDUM (FUSSELMAN) HIBERNIA RESOURCES III, LLC 15486 UNIVERSITY "3-9" SPRABERRY (TREND AREA) PITTS ENERGY CO. 09459


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY "3" FARMER (SAN ANDRES) OTB OPERATING, LLC 09506 UNIVERSITY "3" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 09583 UNIVERSITY "30-B" SPRABERRY (TREND AREA) BASA RESOURCES, INC. 07986 UNIVERSITY "30-22" OZONA (CANYON SAND) THOMPSON, J. CLEO 10209 UNIVERSITY "31" SPRABERRY (TREND AREA) REATTA ENERGY, INC. 12993 UNIVERSITY "34-2" SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 08155 UNIVERSITY "35" BIG LAKE ENERGY PRODUCTION CORPORATION 12560 UNIVERSITY "35" HOWARD DRAW (SHALLOW) QUATRO OIL AND GAS, INC. 08994 UNIVERSITY "36" BIG LAKE ENERGY PRODUCTION CORPORATION 12619 UNIVERSITY "36B" BIG LAKE ENERGY PRODUCTION CORPORATION 14744 UNIVERSITY "38C" BLOCK 38 (ELLENBURGER) REATTA ENERGY, INC. 15331 UNIVERSITY "4-A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07703 UNIVERSITY "4-10" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 08061 UNIVERSITY "4-19" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17703 UNIVERSITY "4-29C" SHEEP MOUNTAIN (CONSOLIDATED) PIONEER NATURAL RES. USA, INC. 17539 UNIVERSITY "4-3" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16771 UNIVERSITY "4-8" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16925 UNIVERSITY "4" BENEDUM (FUSSELMAN) HIBERNIA RESOURCES III, LLC 14708 UNIVERSITY "4" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07706 UNIVERSITY "46-15" FARMER (SAN ANDRES) MCFARLAND & SCOBEY, INC. 14777 UNIVERSITY "47-10" FARMER (SAN ANDRES) RECOVERY OPERATING LP 13261 UNIVERSITY "47-4" FARMER (SAN ANDRES) ROBERTSON RESOURCES, INC. 08836 UNIVERSITY "47A-20" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 13614 UNIVERSITY "47C-11" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 13472 UNIVERSITY "47C-11A" FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 13542 UNIVERSITY "48-C" BARNHART, SOUTH (ELLENBURGER) LEGACY RESERVES OPERATING LP 00114 UNIVERSITY "48-1" FARMER (SAN ANDRES) RWA, LLC 16876 UNIVERSITY "48-11" BARNHART, SOUTH (ELLENBURGER) ROBERTSON RESOURCES, INC. 09597 UNIVERSITY "48-11" FARMER (SAN ANDRES) ROBERTSON RESOURCES, INC. 09752 UNIVERSITY "48-15 A" BLOCK 49 (2450) OVERTON PARK OIL & GAS LP 02355 UNIVERSITY "48-15" BLOCK 49 (2450) OVERTON PARK OIL & GAS LP 13281 UNIVERSITY "48-5" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 11368 UNIVERSITY "48-6" PRICE (GRAYBURG) EGI, INC. 10771 UNIVERSITY "49-1" PRICE (GRAYBURG) L & M OPERATING, INC. 07759 UNIVERSITY "49-12" FARMER (SAN ANDRES) RECOVERY OPERATING LP 13433 UNIVERSITY "49-2" PRICE (GRAYBURG) LAST DOLLAR LLC 10772 UNIVERSITY "49-5" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 11225 UNIVERSITY "49-6" PRICE (GRAYBURG) L & M OPERATING, INC. 11369 UNIVERSITY "49-7" BLOCK 49 (2450) LEGACY RESERVES OPERATING LP 07741 UNIVERSITY "49-9" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07841 UNIVERSITY "49-9A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07842 UNIVERSITY "5" FARMER (SAN ANDRES) RAD OIL COMPANY 12668 UNIVERSITY "5" FARMER (SAN ANDRES) WIND RIVER ENERGY, INC. 12270 UNIVERSITY "5W" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15734 UNIVERSITY "50-A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07302 UNIVERSITY "50-4" FARMER (SAN ANDRES) RECOVERY OPERATING LP 13374 UNIVERSITY "50-4" NCT FARMER (SAN ANDRES) RECOVERY OPERATING LP 13447 UNIVERSITY "50B" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08095 UNIVERSITY "51-2" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 10060 UNIVERSITY "51-7" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 09985 UNIVERSITY "51-7A" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 14618


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY "58-1" PURE (WOLFCAMP) HIBERNIA RESOURCES III, LLC 15756 UNIVERSITY "58-31" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16591 UNIVERSITY "58-32" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16481 UNIVERSITY "58-5" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16576 UNIVERSITY "58-5A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16604 UNIVERSITY "58-6B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16624 UNIVERSITY "58-8" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17705 UNIVERSITY "58-9" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16492 UNIVERSITY "58-9A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17608 UNIVERSITY "6" SPRABERRY (TREND AREA) APACHE CORPORATION 15415 UNIVERSITY "7-17" GRIERSON SPRING (DEVONIAN) MEXTEX OPERATING COMPANY 16514 UNIVERSITY "7" FARMER (SAN ANDRES) LAST DOLLAR LLC 07555 UNIVERSITY "8-A" SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 09076 UNIVERSITY "8" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07702 UNIVERSITY "8B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16575 UNIVERSITY "9-9" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 16901 UNIVERSITY "9" FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 07035 UNIVERSITY "9" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20830 UNIVERSITY "9A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07752 UNIVERSITY A BLOCK 38 (ELLENBURGER) OSBORN HEIRS COMPANY 13247 UNIVERSITY AH FLAT ROCK (FUSSELMAN) ENDEAVOR ENERGY RESOURCES L.P. 13807 UNIVERSITY AH SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 17891 UNIVERSITY AMBER SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15299 UNIVERSITY BENEDUM 13 BENEDUM, NE. (BEND LIME) THOMPSON, J. CLEO 16064 UNIVERSITY BLOCK 12 LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 17929 UNIVERSITY BLOCK 42 HOLT RANCH (CONSOLIDATED) EOG RESOURCES, INC. 17552 UNIVERSITY BLOCK 48 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18227 UNIVERSITY BLOCK 48 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20647 UNIVERSITY BLOCK 57 HOLT RANCH (CONSOLIDATED) BVX OPERATING, INC. 18314 UNIVERSITY C BLOCK 38 (CANYON SD.) OSBORN HEIRS COMPANY 15436 UNIVERSITY C-19 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 09771 UNIVERSITY CAROLINE SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15303 UNIVERSITY CASSANDRA SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15227 UNIVERSITY CENTRAL WILDCAT EP ENERGY E&P COMPANY, L.P. 17702 UNIVERSITY CENTRAL BLOCK 44 (LOWER ELLENBURGER) EP ENERGY E&P COMPANY, L.P. 19455 UNIVERSITY CENTRAL LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 17575 UNIVERSITY CENTRAL SPRABERRY (TREND AREA) EP ENERGY E&P COMPANY, L.P. 17690 UNIVERSITY CITIES SERVICE FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00454 UNIVERSITY CN "A" FARMER (SAN ANDRES) RECOVERY OPERATING LP 13111 UNIVERSITY COURTNEY SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15222 UNIVERSITY DEBORAH SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15374 UNIVERSITY DELBRA SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 13523 UNIVERSITY DENISE SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15392 UNIVERSITY DYCO "A" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 08180 UNIVERSITY EAST BLOCK 44 (LOWER ELLENBURGER) EP ENERGY E&P COMPANY, L.P. 18782 UNIVERSITY EAST FARMER (SAN ANDRES) EP ENERGY E&P COMPANY, L.P. 20041 UNIVERSITY EAST LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 17576 UNIVERSITY E2-34C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 21010 UNIVERSITY E2-34D SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 21007 UNIVERSITY E2-34F SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 21001 UNIVERSITY GOLD SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 19146


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY GREAT PLAINS -B- FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00453 UNIVERSITY HALEY SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15221 UNIVERSITY LAND HOOVER KIMBROUGH, D. E. 12336 UNIVERSITY LAND V-BAR (SAN ANDRES) REIN PUSHER OPERATING LLC 03153 UNIVERSITY LANDS BIG LAKE (SAN ANDRES) SABLE PERMIAN RESOURCES, LLC 18330 UNIVERSITY LANDS FARMER (SAN ANDRES) P & A OPERATING, INC. 11323 UNIVERSITY LANDS TODD, NORTH (SAN ANDRES) NIBLETT'S OILFIELD SERVICES, INC 13018 UNIVERSITY LANDS (M) 13-B FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08508 UNIVERSITY LANDS (M) 14-B FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 08579 UNIVERSITY LANDS (M) 14A FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 10106 UNIVERSITY LANDS -10- FARMER (SAN ANDRES) SMC OIL & GAS, INC. 08052 UNIVERSITY LANDS /2-49/ PRICE (GRAYBURG) L & M OPERATING, INC. 03981 UNIVERSITY LANDS "B" FARMER (SAN ANDRES) P & A OPERATING, INC. 11745 UNIVERSITY LANDS "E" FARMER (SAN ANDRES) P & A OPERATING, INC. 12285 UNIVERSITY LANDS C FARMER (SAN ANDRES) P & A OPERATING, INC. 11662 UNIVERSITY LANDS D FARMER (SAN ANDRES) P & A OPERATING, INC. 11663 UNIVERSITY LANDS 11-10 BIG LAKE, W. (ELLENBURGER) SABLE PERMIAN RESOURCES, LLC 17744 UNIVERSITY LANDS 11-10 SHEEP MOUNTAIN (CONSOLIDATED) SABLE PERMIAN RESOURCES, LLC 17799 UNIVERSITY LANDS 11-3 BIG LAKE, W. (ELLENBURGER) SABLE PERMIAN RESOURCES, LLC 17676 UNIVERSITY LANDS 11-4 SHEEP MOUNTAIN (CONSOLIDATED) SABLE PERMIAN RESOURCES, LLC 17927 UNIVERSITY LANDS 11-7 SHEEP MOUNTAIN (CONSOLIDATED) SABLE PERMIAN RESOURCES, LLC 17852 UNIVERSITY LANDS 11-9 BIG LAKE, W. (ELLENBURGER) SABLE PERMIAN RESOURCES, LLC 17541 UNIVERSITY LANDS 11-9 SHEEP MOUNTAIN (CONSOLIDATED) SABLE PERMIAN RESOURCES, LLC 17831 UNIVERSITY LANDS 12 WEGER (SAN ANDRES) FOUR STARR PRODUCTION, LLC 09638 UNIVERSITY LANDS 13 WEGER (SAN ANDRES) FOUR STARR PRODUCTION, LLC 09847 UNIVERSITY LANDS 13 WEGER, SW. (GRAYBURG-SAN ANDRES) FOUR STARR PRODUCTION, LLC 08435 UNIVERSITY LANDS 14-50 FARMER (SAN ANDRES) RMB OPERATING LLC 19147 UNIVERSITY LANDS 3716 LITTLE MESA (WOLFCAMP) MLC OPERATING, LP 19465 UNIVERSITY LANDS 51/52 WEGER, SW. (GRAYBURG-SAN ANDRES) FOUR STARR PRODUCTION, LLC 13008 UNIVERSITY LAURA SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15149 UNIVERSITY LEASE BIG LAKE O'RYAN OIL AND GAS 00229 UNIVERSITY LEIGH SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15345 UNIVERSITY LUCY LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18505 UNIVERSITY MAROON SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 19228 UNIVERSITY MICHELLE SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15146 UNIVERSITY MUSCADET SHEEP MOUNTAIN (CONSOLIDATED) CAMBRIAN MANAGEMENT, LTD. 18270 UNIVERSITY OBS 46 WILDCAT EP ENERGY E&P COMPANY, L.P. 18233 UNIVERSITY OF TEXAS FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00467 UNIVERSITY OF TEXAS - 233 FARMER (SAN ANDRES) WARREN AMERICAN OIL COMPANY, LLC 08782 UNIVERSITY OF TEXAS - 245 FARMER (SAN ANDRES) WARREN AMERICAN OIL COMPANY, LLC 09705 UNIVERSITY OF TEXAS -234 FARMER (SAN ANDRES) WARREN AMERICAN OIL COMPANY, LLC 14829 UNIVERSITY OF TEXAS 1 FARMER (SAN ANDRES) B.P. OIL COMPANY 07017 UNIVERSITY OF TEXAS-235 FARMER (SAN ANDRES) WARREN AMERICAN OIL COMPANY, LLC 08881 UNIVERSITY OF TEXAS-236 WEGER (SAN ANDRES) WARREN AMERICAN OIL COMPANY, LLC 09356 UNIVERSITY OHIO B FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00456 UNIVERSITY ORANGE SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 19444 UNIVERSITY OWENS 'A' 1-6 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20095 UNIVERSITY OWENS 1-6 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20094 UNIVERSITY OWENS 1-6 ALLOC 18 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20521 UNIVERSITY OWENS 1-6 ALLOC 18 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20786 UNIVERSITY OWENS 1-6 ALLOC 23 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20592


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY OWENS 1-6 ALLOC 23 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20788 UNIVERSITY OWENS 1-6 ALLOC 27 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20514 UNIVERSITY OWENS 1-6 ALLOC 27 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20787 UNIVERSITY OWENS 1-6 ALLOC 32 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20593 UNIVERSITY OWENS 1-6 ALLOC 32 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20801 UNIVERSITY OWENS 1-6 ALLOC 33 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20520 UNIVERSITY OWENS 1-6 ALLOC 33 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20789 UNIVERSITY PHILLIPS FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00457 UNIVERSITY REAGAN 27 SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 17742 UNIVERSITY REAGAN 4 SPRABERRY (TREND AREA) BAYLOR OPERATING, LLC 17880 UNIVERSITY RED SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 19165 UNIVERSITY S-U -A- FLAT ROCK (SPRABERRY) HIBERNIA RESOURCES III, LLC 00500 UNIVERSITY SALT DRAW LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 18942 UNIVERSITY SCHLEICHER 21 OZONA, NE. (CANYON 7520) BAYLOR OPERATING, LLC 17886 UNIVERSITY SEC. 13 CROCKETT POLARIS PRODUCTION CORP. 00404 UNIVERSITY SEC. 14 CROCKETT POLARIS PRODUCTION CORP. 00405 UNIVERSITY SEC. 15 CROCKETT POLARIS PRODUCTION CORP. 00406 UNIVERSITY SEC. 16 CROCKETT POLARIS PRODUCTION CORP. 00407 UNIVERSITY SEC. 18-A CROCKETT POLARIS PRODUCTION CORP. 00402 UNIVERSITY SEC. 19 CROCKETT POLARIS PRODUCTION CORP. 00408 UNIVERSITY SOUTH LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 18991 UNIVERSITY SOUTH OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18358 UNIVERSITY SR 23-26 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18681 UNIVERSITY STONEGATE WILDCAT EP ENERGY E&P COMPANY, L.P. 17055 UNIVERSITY STONEGATE LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 17668 UNIVERSITY STONEGATE SAWYER (LEONARD) EP ENERGY E&P COMPANY, L.P. 17574 UNIVERSITY STONEGATE SPRABERRY (TREND AREA) EP ENERGY E&P COMPANY, L.P. 18083 UNIVERSITY SWD FLAT ROCK (ELLENBURGER) HUNT OIL COMPANY 19657 UNIVERSITY SYLVIA SPRABERRY (TREND AREA) PBEX OPERATIONS, LLC 15294 UNIVERSITY TAYLOR DRAW 30 SHEEP MOUNTAIN (CONSOLIDATED) EP ENERGY E&P COMPANY, L.P. 19410 UNIVERSITY TAYLOR DRAW 31 SHEEP MOUNTAIN (CONSOLIDATED) EP ENERGY E&P COMPANY, L.P. 19391 UNIVERSITY TEMA LIN (WOLFCAMP) LEGACY RESERVES OPERATING LP 19959 UNIVERSITY UNIT OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 17743 UNIVERSITY UNIT '5-20-21' LIN (WOLFCAMP) ENDEAVOR ENERGY RESOURCES L.P. 18281 UNIVERSITY UNIT 1 RE 10 4 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19215 UNIVERSITY UNIT 1 RE 10 4 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20663 UNIVERSITY WARREN FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 00458 UNIVERSITY WEGER "51-3" WEGER (SAN ANDRES) QUATRO OIL AND GAS, INC. 08816 UNIVERSITY WEST BLUE DANUBE (STRAWN) EP ENERGY E&P COMPANY, L.P. 20040 UNIVERSITY WEST LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 19763 UNIVERSITY WHITE SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12918 UNIVERSITY WHITE 6 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 11089 UNIVERSITY W3-169A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20832 UNIVERSITY W3-169B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20920 UNIVERSITY W3-169D SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20858 UNIVERSITY W3-169E SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20861 UNIVERSITY Z "A" BLOCK 47 (SHALLOW) REIN PUSHER OPERATING LLC 07914 UNIVERSITY 09 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17946 UNIVERSITY 09 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 17721 UNIVERSITY 09 10-15 ALLOC 03 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20873 UNIVERSITY 09 10-15 ALLOC 12 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20847


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY 09 10-15 ALLOC 13 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20815 UNIVERSITY 09 10-15 ALLOC 17 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20782 UNIVERSITY 09A LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18688 UNIVERSITY 09A SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20620 UNIVERSITY 09B LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18816 UNIVERSITY 09B LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18131 UNIVERSITY 09B SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20621 UNIVERSITY 09C LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18623 UNIVERSITY 1 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18808 UNIVERSITY 1 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20619 UNIVERSITY 1-12 10 SPRABERRY (TREND AREA) HUNT OIL COMPANY 19919 UNIVERSITY 1-12 20 SPRABERRY (TREND AREA) HUNT OIL COMPANY 19932 UNIVERSITY 1-12 30 SPRABERRY (TREND AREA) HUNT OIL COMPANY 19931 UNIVERSITY 1-2 30 SPRABERRY (TREND AREA) HUNT OIL COMPANY 20946 UNIVERSITY 1-2 40 SPRABERRY (TREND AREA) HUNT OIL COMPANY 20945 UNIVERSITY 1-2 80 SPRABERRY (TREND AREA) HUNT OIL COMPANY 20944 UNIVERSITY 1-26 SPRABERRY (TREND AREA) HUNT OIL COMPANY 09775 UNIVERSITY 1-28 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18438 UNIVERSITY 1-4 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 09770 UNIVERSITY 1-4 SPRABERRY (TREND AREA) MEWBOURNE OIL COMPANY 15388 UNIVERSITY 1-9 SPRABERRY (TREND AREA) MEWBOURNE OIL COMPANY 15377 UNIVERSITY 1-9 SPRABERRY (TREND AREA) RP OPERATING, L.L.C. 09763 UNIVERSITY 10 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17844 UNIVERSITY 10 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20685 UNIVERSITY 10 "S" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07742 UNIVERSITY 10 RE LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18869 UNIVERSITY 10-B BENEDUM (DEVONIAN, GAS) RP OPERATING, L.L.C. 14407 UNIVERSITY 10-13 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16900 UNIVERSITY 10-21 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 17822 UNIVERSITY 10-26 BARNHART (ELLENBURGER) SABLE PERMIAN RESOURCES, LLC 18405 UNIVERSITY 10-3 SPRABERRY (TREND AREA) HUNT OIL COMPANY 20141 UNIVERSITY 11 RE LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18457 UNIVERSITY 12 BENEDUM (DEVONIAN, GAS) HIBERNIA RESOURCES III, LLC 18245 UNIVERSITY 12 RE LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18174 UNIVERSITY 12 RE SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20623 UNIVERSITY 12-12 SPRABERRY (TREND AREA) THOMPSON, J. CLEO 12941 UNIVERSITY 12-22 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16860 UNIVERSITY 12-3 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16811 UNIVERSITY 12-9 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16437 UNIVERSITY 12A BIG LAKE ENERGY PRODUCTION CORPORATION 19527 UNIVERSITY 13 FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 14339 UNIVERSITY 13-2W TRIUMPH (WOLFCAMP) ENDEAVOR ENERGY RESOURCES L.P. 14600 UNIVERSITY 13-24 10 SPRABERRY (TREND AREA) HUNT OIL COMPANY 20962 UNIVERSITY 13-24 20 SPRABERRY (TREND AREA) HUNT OIL COMPANY 20961 UNIVERSITY 14 BLOCK 38 (ELLENBURGER) OSBORN HEIRS COMPANY 12851 UNIVERSITY 14 FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 14341 UNIVERSITY 14 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 15024 UNIVERSITY 14 SPRABERRY (TREND AREA) PALO PETROLEUM, INC. 08935 UNIVERSITY 14-B FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 14340 UNIVERSITY 15 BLOCK 38 (ELLENBURGER) OSBORN HEIRS COMPANY 15434 UNIVERSITY 15 FARMER (SAN ANDRES) TEJAS JACK SALES, INC. 13708


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY 15 "A" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10313 UNIVERSITY 15 "B" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10387 UNIVERSITY 15 "C" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10177 UNIVERSITY 15 "D" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10188 UNIVERSITY 15-17 SPRABERRY (TREND AREA) EOG RESOURCES, INC. 17168 UNIVERSITY 15-58 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 07668 UNIVERSITY 16 "B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11280 UNIVERSITY 16 "D" SPRABERRY (TREND AREA) JAY MANAGEMENT COMPANY, LLC 09831 UNIVERSITY 16-58 SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 07669 UNIVERSITY 16A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 09327 UNIVERSITY 16C SPRABERRY (TREND AREA) JAY MANAGEMENT COMPANY, LLC 09247 UNIVERSITY 17 "C" SPRABERRY (TREND AREA) JAY MANAGEMENT COMPANY, LLC 09397 UNIVERSITY 178B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18872 UNIVERSITY 18 FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 13171 UNIVERSITY 18-58 SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 18381 UNIVERSITY 2 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18411 UNIVERSITY 2 "A" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 08780 UNIVERSITY 2 "B" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 08641 UNIVERSITY 2 "E" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 14970 UNIVERSITY 2 "F" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 14969 UNIVERSITY 2 "G" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 14971 UNIVERSITY 2 "H" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 09353 UNIVERSITY 2 "K" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 15015 UNIVERSITY 2 "L" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 15016 UNIVERSITY 2 "M" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 15014 UNIVERSITY 2-31 SPRABERRY (TREND AREA) PITTS ENERGY CO. 09126 UNIVERSITY 2-35A SPRABERRY (TREND AREA) HUNT OIL COMPANY 09010 UNIVERSITY 2-35B SPRABERRY (TREND AREA) HUNT OIL COMPANY 09040 UNIVERSITY 2-35D SPRABERRY (TREND AREA) HUNT OIL COMPANY 07280 UNIVERSITY 2-36B SPRABERRY (TREND AREA) HUNT OIL COMPANY 09202 UNIVERSITY 2-7 SPRABERRY (TREND AREA) CAMBRIAN MANAGEMENT, LTD. 09765 UNIVERSITY 2"I" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 15010 UNIVERSITY 2"J" FARMER (SAN ANDRES) LEGACY RESERVES OPERATING LP 15009 UNIVERSITY 2S SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 17301 UNIVERSITY 22 A BLOCK 4 (WOLFCAMP) BAYLOR OPERATING, LLC 18036 UNIVERSITY 22B FARMER (SAN ANDRES) OTB OPERATING, LLC 19565 UNIVERSITY 23-29 BACHELOR HILL (GRAYBURG) WTG EXPLORATION 13080 UNIVERSITY 23W BAKER RANCH (CANYON) CAPITOL WELL SERVICING CO., INC. 15095 UNIVERSITY 2303 E HZ UNIT SPRABERRY (TREND AREA) APACHE CORPORATION 18900 UNIVERSITY 2303 W HZ UNIT SPRABERRY (TREND AREA) APACHE CORPORATION 18898 UNIVERSITY 24 FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 13525 UNIVERSITY 24/BLK 1 "A" TEXON, S (GRAYBURG) ENERGY PRODUCTION CORPORATION 10779 UNIVERSITY 2404 HZ UNIT SPRABERRY (TREND AREA) APACHE CORPORATION 18899 UNIVERSITY 25 BIG LAKE ENERGY PRODUCTION CORPORATION 20900 UNIVERSITY 25 FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 13035 UNIVERSITY 25 SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 15803 UNIVERSITY 25 TEXON, S (GRAYBURG) ENERGY PRODUCTION CORPORATION 05599 UNIVERSITY 25W SPRABERRY (TREND AREA) APACHE CORPORATION 20205 UNIVERSITY 2505 HZ UNIT SPRABERRY (TREND AREA) APACHE CORPORATION 18877 UNIVERSITY 2536 SPRABERRY (TREND AREA) APACHE CORPORATION 18914 UNIVERSITY 27 "A" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10377


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY 27 "B" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10378 UNIVERSITY 27 "C" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10379 UNIVERSITY 27 "D" SPRABERRY (TREND AREA) REMUDA OPERATING COMPANY 10380 UNIVERSITY 27-34 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18756 UNIVERSITY 29 A SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 13717 UNIVERSITY 3-15 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20360 UNIVERSITY 3-310 PU SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19544 UNIVERSITY 3-35 SPRABERRY (TREND AREA) HUNT OIL COMPANY 19064 UNIVERSITY 3-36 SHEEP MOUNTAIN (CONSOLIDATED) HUNT OIL COMPANY 18042 UNIVERSITY 3-36 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18844 UNIVERSITY 3-6 SPRABERRY (TREND AREA) PITTS ENERGY CO. 09173 UNIVERSITY 3-67 PU SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 19258 UNIVERSITY 3/BLK 43 "A" SPRABERRY (TREND AREA) FABCO 11192 UNIVERSITY 30 SPRABERRY (TREND AREA) BASA RESOURCES, INC. 06993 UNIVERSITY 30-28A UNIVERSITY 30 (CANYON) EPIC PERMIAN OPERATING, LLC 11278 UNIVERSITY 30-34 LIN (WOLFCAMP) EPIC PERMIAN OPERATING, LLC 18422 UNIVERSITY 30-9 LIN (WOLFCAMP) EPIC PERMIAN OPERATING, LLC 18441 UNIVERSITY 30B SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 11088 UNIVERSITY 31 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 05629 UNIVERSITY 31 TAYLOR DRAW SPRABERRY (TREND AREA) APACHE CORPORATION 19048 UNIVERSITY 33 SPRABERRY (TREND AREA) ARCH OIL & GAS, LLC 10096 UNIVERSITY 35-19 40 SPRABERRY (TREND AREA) HUNT OIL COMPANY 19987 UNIVERSITY 36-5 PAGE-TAURUS (WOLFCAMP) ENDEAVOR ENERGY RESOURCES L.P. 12384 UNIVERSITY 38 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17667 UNIVERSITY 38 'O' LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18490 UNIVERSITY 38 BLOCK UNIT LIN (WOLFCAMP) EP ENERGY E&P COMPANY, L.P. 19776 UNIVERSITY 38 D LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18357 UNIVERSITY 38 OR LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18783 UNIVERSITY 38 R LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18243 UNIVERSITY 38-40 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 19775 UNIVERSITY 4 TAYLOR DRAW SPRABERRY (TREND AREA) APACHE CORPORATION 18512 UNIVERSITY 4-10 SPRABERRY (TREND AREA) HUNT OIL COMPANY 20125 UNIVERSITY 4-11 SHEEP MOUNTAIN (CONSOLIDATED) HUNT OIL COMPANY 17898 UNIVERSITY 4-12 SHEEP MOUNTAIN (CONSOLIDATED) HUNT OIL COMPANY 17914 UNIVERSITY 4-12 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18481 UNIVERSITY 4-13 SHEEP MOUNTAIN (CONSOLIDATED) HUNT OIL COMPANY 17916 UNIVERSITY 4-13 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18275 UNIVERSITY 4-14 SHEEP MOUNTAIN (CONSOLIDATED) HUNT OIL COMPANY 17790 UNIVERSITY 4-18 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18258 UNIVERSITY 4-19A SHEEP MOUNTAIN (CONSOLIDATED) PIONEER NATURAL RES. USA, INC. 16781 UNIVERSITY 4-20A SHEEP MOUNTAIN (CONSOLIDATED) PIONEER NATURAL RES. USA, INC. 16754 UNIVERSITY 4-21 SHEEP MOUNTAIN (CONSOLIDATED) CAMBRIAN MANAGEMENT, LTD. 18045 UNIVERSITY 4-22 SPRABERRY (TREND AREA) CAMBRIAN MANAGEMENT, LTD. 18234 UNIVERSITY 4-23 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18480 UNIVERSITY 4-24 SHEEP MOUNTAIN (CONSOLIDATED) HUNT OIL COMPANY 17767 UNIVERSITY 4-28 SHEEP MOUNTAIN (CONSOLIDATED) CAMBRIAN MANAGEMENT, LTD. 18067 UNIVERSITY 4-30 BLOCK 4 (DEVONIAN) APACHE CORPORATION 20917 UNIVERSITY 4-30 SHEEP MOUNTAIN (CONSOLIDATED) APACHE CORPORATION 18434 UNIVERSITY 4/BLK 43 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 10977 UNIVERSITY 40 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17171 UNIVERSITY 40 A LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17557


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY 40 C LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18124 UNIVERSITY 40 EP LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18290 UNIVERSITY 40-B LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17943 UNIVERSITY 40D LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18129 UNIVERSITY 42 HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17265 UNIVERSITY 42 A HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 18350 UNIVERSITY 43 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17569 UNIVERSITY 43 "A" LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17809 UNIVERSITY 43-13 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17745 UNIVERSITY 43-13 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20624 UNIVERSITY 43-14 BARNHART (ELLENBURGER) SABLE PERMIAN RESOURCES, LLC 18413 UNIVERSITY 43-14 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18377 UNIVERSITY 43-14 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20626 UNIVERSITY 43-15 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17793 UNIVERSITY 43-15 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20627 UNIVERSITY 43-25 LIN (WOLFCAMP) RIDGELINE RESOURCES, LLC 18846 UNIVERSITY 43-4 FARMER (SAN ANDRES) SIMATA ENERGY, LLC 12512 UNIVERSITY 43-4 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18809 UNIVERSITY 43-4 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20644 UNIVERSITY 43-5 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18905 UNIVERSITY 43-5 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20628 UNIVERSITY 43-6 FARMER (SAN ANDRES) KEM ENERGY, INC. 16840 UNIVERSITY 43-6XX FARMER (SAN ANDRES) RWA, LLC 17389 UNIVERSITY 45 HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17662 UNIVERSITY 47 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18207 UNIVERSITY 47 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20629 UNIVERSITY 47-11 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18561 UNIVERSITY 47-11 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20630 UNIVERSITY 47-2W LIN (WOLFCAMP) LEGACY RESERVES OPERATING LP 18946 UNIVERSITY 47-20 FARMER (SAN ANDRES) OVERTON PARK OIL & GAS LP 13212 UNIVERSITY 47-23 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18644 UNIVERSITY 47-23 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20633 UNIVERSITY 47-3 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18639 UNIVERSITY 47-3 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20631 UNIVERSITY 47-4W LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18640 UNIVERSITY 47-4W SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20632 UNIVERSITY 47-48 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18123 UNIVERSITY 47-48 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20635 UNIVERSITY 47-5 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18564 UNIVERSITY 47-5 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20634 UNIVERSITY 48 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18110 UNIVERSITY 48 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20636 UNIVERSITY 48 2-12 WEST ALLOC 02 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20793 UNIVERSITY 48 2-12 WEST ALLOC 03 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20780 UNIVERSITY 48 2-12 WEST ALLOC 08 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20781 UNIVERSITY 48-09 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18139 UNIVERSITY 48-09 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20637 UNIVERSITY 48-1 FARMER (SAN ANDRES) KEM ENERGY, INC. 16837 UNIVERSITY 48-1 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18646 UNIVERSITY 48-1 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20638 UNIVERSITY 48-1 B FARMER (SAN ANDRES) KEM ENERGY, INC. 16994


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY 48-1 WEST SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20639 UNIVERSITY 48-11 FARMER (SAN ANDRES) KEM ENERGY, INC. 17931 UNIVERSITY 48-11 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18535 UNIVERSITY 48-11 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20640 UNIVERSITY 48-12 FARMER (SAN ANDRES) KEM ENERGY, INC. 17923 UNIVERSITY 48-12 WEST LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18857 UNIVERSITY 48-12 WEST SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20641 UNIVERSITY 48-17 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18714 UNIVERSITY 48-17 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20645 UNIVERSITY 48-2 FARMER (SAN ANDRES) KEM ENERGY, INC. 17912 UNIVERSITY 48-2WX FARMER (SAN ANDRES) KEM ENERGY, INC. 17853 UNIVERSITY 48-25 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18813 UNIVERSITY 48-25 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20646 UNIVERSITY 48-3 FARMER (SAN ANDRES) RWA, LLC 18702 UNIVERSITY 48-5 PRICE (GRAYBURG) GOOCH & ISOM 13135 UNIVERSITY 48-9 FARMER (SAN ANDRES) RWA, LLC 16974 UNIVERSITY 48-9B FARMER (SAN ANDRES) KEM ENERGY, INC. 17351 UNIVERSITY 48-9C FARMER (SAN ANDRES) KEM ENERGY, INC. 17495 UNIVERSITY 48A LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18600 UNIVERSITY 49 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17919 UNIVERSITY 49 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20648 UNIVERSITY 49-1 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18586 UNIVERSITY 49-1 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20649 UNIVERSITY 49-1 WEST LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18663 UNIVERSITY 49-1 WEST SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20650 UNIVERSITY 49-13 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18287 UNIVERSITY 49-13 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20651 UNIVERSITY 49-2 "A" PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 11086 UNIVERSITY 49-6 "A" BLOCK 49 (2450) L & M OPERATING, INC. 07585 UNIVERSITY 50 CD HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 20110 UNIVERSITY 50 CE HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 20168 UNIVERSITY 50-1 EAST LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18742 UNIVERSITY 50-1 EAST SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20652 UNIVERSITY 50-12 EAST LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18642 UNIVERSITY 50-12 EAST SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20653 UNIVERSITY 50-12 WEST LIN (WOLFCAMP) ATROPOS EXPLORATION COMPANY 18973 UNIVERSITY 50-12 WEST WEGER (SAN ANDRES) ATROPOS EXPLORATION COMPANY 19832 UNIVERSITY 50-14 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18641 UNIVERSITY 50-14 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20654 UNIVERSITY 50-15 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18562 UNIVERSITY 50-15 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20655 UNIVERSITY 50-15 EAST LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18715 UNIVERSITY 50-15 EAST SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20656 UNIVERSITY 50-15 WEST SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20657 UNIVERSITY 52 LIN (WOLFCAMP) EOG RESOURCES, INC. 17932 UNIVERSITY 52 S LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18112 UNIVERSITY 52-10 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17634 UNIVERSITY 52-10 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20658 UNIVERSITY 52-23 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18140 UNIVERSITY 52-23 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20659 UNIVERSITY 52-24 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18155


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY 52-24 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20660 UNIVERSITY 52-7 LIN (WOLFCAMP) RIDGELINE RESOURCES, LLC 18836 UNIVERSITY 54 23 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 17736 UNIVERSITY 54 24 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18092 UNIVERSITY 54 5 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18394 UNIVERSITY 54 6 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18468 UNIVERSITY 54-13 HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17433 UNIVERSITY 54-2 HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17438 UNIVERSITY 55 1 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 17612 UNIVERSITY 55 10 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 17751 UNIVERSITY 55 10 SAWYER (LEONARD) UPP OPERATING, LLC 17443 UNIVERSITY 55 11 (PSA) OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 18784 UNIVERSITY 55-12 (SA) LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18559 UNIVERSITY 55-12 (SA) SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20661 UNIVERSITY 55-13 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18011 UNIVERSITY 55-13 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20662 UNIVERSITY 55-8 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18876 UNIVERSITY 57 2 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 17827 UNIVERSITY 57 3 OZONA, NE. (CANYON 7520) UPP OPERATING, LLC 17792 UNIVERSITY 57-6 UNIVERSITY 101 (LEONARD) HAMMAN OIL & REFINING COMPANY 15703 UNIVERSITY 58-18 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17875 UNIVERSITY 58-18D SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 08792 UNIVERSITY 58-19 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17342 UNIVERSITY 58-19A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16761 UNIVERSITY 58-2 SHEEP MOUNTAIN (CONSOLIDATED) HUNT OIL COMPANY 17680 UNIVERSITY 58-2 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18504 UNIVERSITY 6-1 SPRABERRY (TREND AREA) SAFEMARK OIL & GAS, LLC 13904 UNIVERSITY 6-17 GRIERSON SPRING (STRAWN) APACHE CORPORATION 16987 UNIVERSITY 6-19 AMIET (STRAWN) THOMPSON, J. CLEO 14699 UNIVERSITY 66, 67, 68 UNIT MIDWAY LANE (PERMIAN) THOMPSON, J. CLEO 01017 UNIVERSITY 66B, 67C, 68D MIDWAY LANE THOMPSON, J. CLEO 01013 UNIVERSITY 7 FARMER (SAN ANDRES) MICHAELSON PRODUCING COMPANY 14338 UNIVERSITY 7-18 GRIERSON SPRING (STRAWN) THOMPSON, J. CLEO 15173 UNIVERSITY 9 BIG LAKE SEM OPERATING COMPANY LLC 19725 UNIVERSITY 9 LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17639 UNIVERSITY 9 'A' LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 17978 UNIVERSITY 9 "A" FARMER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 07282 UNIVERSITY 9-11 LIN (WOLFCAMP) DE3 OPERATING LLC 18323 UNIVERSITY 9-15 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 17486 UNIVERSITY 9-18 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 16784 UNIVERSITY 9-2 SPRABERRY (TREND AREA) DE3 OPERATING LLC 17675 UNIVERSITY 9-26 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 17452 UNIVERSITY 9-30 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 17473 UNIVERSITY 9-31 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 17728 UNIVERSITY 9-31 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20684 UNIVERSITY 9A SPRABERRY (TREND AREA) DRIFTWOOD ENERGY OPERATING, LLC 18384 UNIVERSITY-CONOCO-25 TEXON, S (GRAYBURG) ENERGY PRODUCTION CORPORATION 08985 UNIVERSITY-DYCO "C" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 08505 UNIVERSITY-DYCO "D" FARMER (SAN ANDRES) QUATRO OIL AND GAS, INC. 08979 UNIVERSITY-MACARTHUR HOWARD DRAW (SHALLOW) QUATRO OIL AND GAS, INC. 09933 UNIVERSITY-TOPAZ 1-51 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18897


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ UNIVERSITY-UNION "17" FARMER (SAN ANDRES) LAST DOLLAR LLC 09900 UNIVERSITY"58-6" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16494 UNIVERSITY"58-6A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16625 UNIVERSITY"58-7" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16498 UNIVERSITYANDREA SHEEP MOUNTAIN (CONSOLIDATED) ROMINE OIL & GAS, LLC 16413 UNIVERSITYCHERI SHEEP MOUNTAIN (CONSOLIDATED) ROMINE OIL & GAS, LLC 16607 UNIVERSITYLINDSAY SHEEP MOUNTAIN (CONSOLIDATED) ROMINE OIL & GAS, LLC 16917 UNIVERSITYNATALIE SHEEP MOUNTAIN (CONSOLIDATED) ROMINE OIL & GAS, LLC 16818 UNIVERSITYRUBY SHEEP MOUNTAIN (CONSOLIDATED) ROMINE OIL & GAS, LLC 16491 UNIVERSITYSARAH SHEEP MOUNTAIN (CONSOLIDATED) ROMINE OIL & GAS, LLC 16143 UNIVERSITYSIX SHEEP MOUNTAIN (CONSOLIDATED) PBEX OPERATIONS, LLC 16137 UNIVERSITYTIFFANY SHEEP MOUNTAIN (CONSOLIDATED) ROMINE OIL & GAS, LLC 16146 UNIVERSITYVINCENT SHEEP MOUNTAIN (CONSOLIDATED) LEGACY RESERVES OPERATING LP 16739 UNIVKEISHA GRIERSON SPRING (STRAWN) ZARVONA ENERGY LLC 18674 UNIVKEISHA SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 17807 UNIVKEISHA WORLD ZARVONA ENERGY LLC 17707 UNIVMISTY SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 18981 UNIVNICHOLE SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 18980 UNIVTARA SPRABERRY (TREND AREA) ZARVONA ENERGY LLC 18979 UNIV3 VINCENT22 SHEEP MOUNTAIN (CONSOLIDATED) LEGACY RESERVES OPERATING LP 16620 UNIV3 VINCENT23 SHEEP MOUNTAIN (CONSOLIDATED) LEGACY RESERVES OPERATING LP 16534 UNIV3 VINCENT24 SHEEP MOUNTAIN (CONSOLIDATED) LEGACY RESERVES OPERATING LP 16320 UNIV4 BECKY32 SHEEP MOUNTAIN (CONSOLIDATED) EP ENERGY E&P COMPANY, L.P. 16600 UNIV4 DANNETTE33 SHEEP MOUNTAIN (CONSOLIDATED) EP ENERGY E&P COMPANY, L.P. 16287 UNIV5 HATTIE4 SHEEP MOUNTAIN (CONSOLIDATED) EP ENERGY E&P COMPANY, L.P. 16452 UNIV5 JOANNA5 SHEEP MOUNTAIN (CONSOLIDATED) EP ENERGY E&P COMPANY, L.P. 16199 UNIV5 BFU3 SHEEP MOUNTAIN (CONSOLIDATED) PBEX OPERATIONS, LLC 16142 UNIV5 BFU9 SHEEP MOUNTAIN (CONSOLIDATED) EP ENERGY E&P COMPANY, L.P. 16136 UNIV5 SABRINA24 SHEEP MOUNTAIN (CONSOLIDATED) PBEX OPERATIONS, LLC 16144 UNIV6 DURYN34 SHEEP MOUNTAIN (CONSOLIDATED) PBEX OPERATIONS, LLC 17019 UNIV6 HANNAH26 SHEEP MOUNTAIN (CONSOLIDATED) PBEX OPERATIONS, LLC 16138 UNIV6 PAIGE27 SHEEP MOUNTAIN (CONSOLIDATED) PBEX OPERATIONS, LLC 16139 UNIV6 TAWNI15 SHEEP MOUNTAIN (CONSOLIDATED) ARCH OIL & GAS, LLC 16191 UNIV6 TAYNA22 SHEEP MOUNTAIN (CONSOLIDATED) ARCH OIL & GAS, LLC 16145 UNRUH SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16234 UPTON WILDCAT RANCHERS RESOURCES INC. 19501 UPTON UPTON RANCH (CANYON) RANCHERS RESOURCES INC. 16181 UPTON -K- FEE TEXEL (DEVONIAN) BUSTAMANTE OIL COMPANY 04053 UPTON -N- FEE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14700 UPTON -Q- FEE SPRABERRY (TREND AREA) LEGACY RESERVES OPERATING LP 04121 UPTON 'X' FEE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 19008 UPTON "I" FEE "A" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12401 UPTON "I" FEE OIL UNIT SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 12400 UPTON, H. C. UPTON RANCH (CANYON) RANCHERS RESOURCES INC. 16943 UT-3064 ANDREW A. (CANYON) MEADCO PROPERTIES 10178 V. T. AMACKER 105 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18812 V. T. AMACKER 106 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18514 V. T. AMACKER 62 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18274 V. T. AMACKER 63 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18415 V. T. AMACKER 76 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18241 V. T. AMACKER 78 SPRABERRY (TREND AREA) HUNT OIL COMPANY 18359


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ VALENTINE PIPE DREAM (KING SAND) HELLIFINO OPERATING, LLC 13361 VANCE VINA SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16567 VANCIL DICK RICHARDSON (GARDNER LIME) MULLOY OPERATING, INC. 16152 VANESSA SPRABERRY (TREND AREA) COG OPERATING LLC 15765 VANESSA P1 UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19906 VANESSA 5232B UNIT SPRABERRY (TREND AREA) COG OPERATING LLC 19425 VAUGHAN SPRABERRY (TREND AREA) COG OPERATING LLC 17758 VAUGHAN -B- VAUGHN PENERGY 02053 VAUGHAN -B- T. VAUGHN PENERGY 02072 VAUGHAN -C- VAUGHN PENERGY 02054 VAUGHAN -D- T. VAUGHN PENERGY 02074 VAUGHAN '7' VAUGHN CONSOLIDATED BONFIRE OPERATING LLC 19036 VAUGHAN 61 VAUGHN, N. (ELLENBURGER) THOMPSON, J. CLEO 15102 VAUGHAN 85 VAUGHN, N. (ELLENBURGER) THOMPSON, J. CLEO 15050 VAUGHAN, -A- T. VAUGHN PENERGY 02073 VAUGHAN, I. /DEEP/ VAUGHN, N. (ELLENBURGER) MOORE, J.W. OIL CO 04380 VAUGHAN, ISABEL VAUGHN ATM ENERGY GROUP, LLC 02055 VAUGHAN, ISABEL -A- VAUGHN PENERGY 02056 VAUGHAN, ISABEL -D- VAUGHN ATM ENERGY GROUP, LLC 02654 VAUGHAN, R. L. PURE-BEAN KSABE ENERGY PARTNERS, LLC 01213 VAUGHAN, R. L. VAUGHN CONSOLIDATED KSABE ENERGY PARTNERS, LLC 19054 VAUGHAN, R. L. VAUGHN (ELLENBURGER) KSABE ENERGY PARTNERS, LLC 02077 VAUGHN PURE-BEAN, SOUTH RED STAG ENERGY, LLC 13551 VAUGHN -E- VAUGHN PENERGY 02075 VAUGHN "SC" VAUGHN (QUEEN) ATM ENERGY GROUP, LLC 07145 VAUGHN ACCOUNT 25 TEXON, S (GRAYBURG) ENERGY PRODUCTION CORPORATION 05473 VAUGHN, ISABEL PURE-BEAN BONFIRE OPERATING LLC 02712 VAUGHN, ISABEL VAUGHN CONSOLIDATED KDM PRODUCTION CO 19137 VAUGHN, ISABEL VAUGHN (QUEEN) ATM ENERGY GROUP, LLC 07134 VAUGHN, J. H. HAZEL (SPRABERRY) MIDENERGY OPERATING, LLC 04128 VAUGHN, JOHN TROY "D" F & H, N. (3665) ALARON ENERGY, INC. 06683 VAUGHN, S C VAUGHN ATM ENERGY GROUP, LLC 02653 VENABLE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08774 VENABLE -12- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14142 VENADO NORTH SWD FARMER (SAN ANDRES) PILOT WATER SOLUTIONS SWD LLC 19067 VERA MILLERSVIEW, W. (CROSS CUT SD) CAZAR ENERGY INC 15019 VERA "A" MILLERSVIEW, W. (TANNEHILL) CAZAR ENERGY INC 16011 VERIBEST VERIBEST, S.E. (HARKEY) NORTH AMERICAN DRILLING CORP 17425 VERLIS SPRABERRY (TREND AREA) CLEAR WATER INC. 08216 VERLIS "A" SPRABERRY (TREND AREA) CLEAR WATER INC. 08336 VERONICA LITTLE MESA (WOLFCAMP) WHITE ROCK OIL & GAS, LLC 18880 VESPUCCI 903B SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19740 VESPUCCI 904A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19747 VESPUCCI 904BL SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19748 VESPUCCI 905A SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19731 VESPUCCI 905B SPRABERRY (TREND AREA) R 40 EXC OXY USA WTP LP 19730 VICTOR V. I. P. (CLEAR FORK MIDDLE) PIERCE, V. I. 05605 VICTOR 1223 SPRABERRY (TREND AREA) R 40 EXC HIBERNIA RESOURCES III, LLC 18956 VINEY 131 SPRABERRY (TREND AREA) OVINTIV USA INC. 17607 VIOLA FINNIGAN WOLFCAMP UNIT REGAL (WOLFCAMP) COPPERTOP 09421 VIRDEN NORTON, N. (PALO PINTO) GBTFTA OPERATING, LLC 15124


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ VIRDEN, J. E. WILMETH, WEST (GARDNER) LARUE PRODUCTION 09965 VIRGIL J. POWELL FORT MCKAVITT (LIME 4150) OSBORN HEIRS COMPANY 19134 VIRGIL J. POWELL TR. B TILLERY, S. (CANYON) OSBORN HEIRS COMPANY 17014 VIRGIL POWELL "A" PEGASUS, S. (BEND) WTG EXPLORATION 17083 VIRGIL POWELL "A" SPRABERRY (TREND AREA) WTG EXPLORATION 17701 VIRGINIA SPRABERRY (TREND AREA) COG OPERATING LLC 15817 VIRGINIA SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17518 VOGELSANG BALLINGER (GARDNER) R & R WELL SERVICE, INC. 14593 VOGELSANG/CEDERHOLM UNIT BALLINGER, WEST (PALO PINTO) BRIGHTRIVER ENERGY CO 19320 VOGELSANG/CEDERHOLM UNIT 2 BALLINGER, WEST (PALO PINTO) BRIGHTRIVER ENERGY CO 18999 VOGELSANG/CEDERHOLM UNIT 3 BALLINGER WEST (GARDNER) BRIGHTRIVER ENERGY CO 14633 VOGELSANG, S. BALLINGER (PALO PINTO) EDINBURGH ENERGY PARTNERS, LLC 14149 VOGELSANG, S. BALLINGER, WEST (JENNINGS) PLACE OIL AND GAS CO. 13842 VOGELSANG, S.-2 BALLINGER (PALO PINTO) EDINBURGH ENERGY PARTNERS, LLC 19913 VON GONTEN SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17044 VON GONTEN SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17025 VON GONTEN 160-161 (ALLOC-A) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20808 VON GONTEN 160-161 (ALLOC-B) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20809 VON GONTEN 160-161 (ALLOC-C) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20810 VON GONTEN 160-161 (ALLOC-E) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20811 VON GONTEN 160-161 (ALLOC-F) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20812 VON GONTEN 160-161 (ALLOC-G) SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 20813 W. C. MONTGOMERY GAS UNIT B OZONA (CLEAR FORK) EPIC PERMIAN OPERATING, LLC 19034 WADE RAMON (LEONARD) ENDEAVOR ENERGY RESOURCES L.P. 12283 WADE RICHARDSON SWD 16 AMACKER-TIPPETT (SAN ANDRES) DIAMONDBACK E&P LLC 17460 WAHLENMAIER "42" SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 11096 WAKEFIELD TRUST SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16683 WALKER MEADOW CREEK (CANYON) KATSCO ENERGY, INC. 17499 WALKER B MEADOW CREEK (CANYON) KATSCO ENERGY, INC. 18395 WALKER STATE 100 WILDCAT OCCIDENTAL W TX OVERTHRUST, INC. 17344 WALKER, H. EST. BLUE BONNET (CANYON LIME) MCCAMMON OIL & GAS, INC. 00263 WALKER, J. B. JAMESON (STRAWN) KATSCO ENERGY, INC. 00666 WALKER, J. S. JAMESON, SE. (STRAWN) FDL OPERATING, LLC 06104 WALL SCHOOL-PRITZ UNIT SCHNIERS FORTUNE ENERGY, INC. 11491 WALLACE SPRABERRY (TREND AREA) THOMPSON, J. CLEO 17173 WALLEN-MILLER OZONA (CLEAR FORK) THOMPSON, J. CLEO 16997 WALLER BALLINGER, WEST (MORRIS SD) OTEX LLC 16627 WALSH-WALLER BALLINGER, WEST (MORRIS SD) BOAZ ENERGY II OPERATING, LLC 16951 WALTERS, R. E. "D" TUCKMAR S. (STRAWN) GOLDEN SPECIALTIES OIL & GAS 12577 WANDA SPRABERRY (TREND AREA) COG OPERATING LLC 16907 WANORECK A POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 21008 WANORECK B POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 21011 WANORECK C POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19602 WANORECK D POOLED UNIT LIN (WOLFCAMP) TRIPLE CROWN RESOURCES, LLC 19608 WANORECK SWD VAN KEUREN (SAN ANGELO) FRATELLI EXPLORATION, L.P. 18338 WARHEAD 0405 A SPRABERRY (TREND AREA) APACHE CORPORATION 21027 WARHEAD 0405 C SPRABERRY (TREND AREA) APACHE CORPORATION 20996 WARHEAD 0405 D SPRABERRY (TREND AREA) APACHE CORPORATION 20993 WASHINGTON WEST A 23-14 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20791 WASHINGTON WEST B 23-14 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20807 WATER DOG FARMER (SAN ANDRES) REMUDA OPERATING COMPANY 14825


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WATKINS SPRABERRY (TREND AREA) APACHE CORPORATION 07259 WATKINS SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 17427 WATKINS SPRABERRY (TREND AREA) YOCHAM OIL AND GAS COMPANY 06570 WATKINS "1204" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17631 WATKINS "1204B" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18206 WATKINS 1229 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 18549 WATKINS 1229 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20665 WATKINS-BURKITT 1204E SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20228 WATKINS-BURKITT 1204F SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20250 WATKINS-BURKITT 1204G SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20230 WATKINS-WAVLE 1204A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20994 WATKINS-WAVLE 1204B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20901 WATKINS-WAVLE 1204C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20960 WATKINS, J. L. SPRABERRY (TREND AREA) V-F PETROLEUM INC. 06723 WATKINS, JOHNNY PAT "1230" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14213 WATKINS, TRUDY B. SPECK, NORTH (STRAWN) WALL PRODUCTION CO., INC. 04102 WAVLE "1205" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17812 WC TANK UNIT LIN (WOLFCAMP) OPTIMUM DISPOSAL LLC 18424 WEATHERBY JOHN SCOTT (GRAYBURG) AGUA LIBRE MIDSTREAM LLC 17129 WEATHERBY JOHN SCOTT (GRAYBURG) PILOT WATER SOLUTIONS PERMIANLLC 11013 WEATHERBY LIN (WOLFCAMP) SEM OPERATING COMPANY LLC 18295 WEATHERBY SPRABERRY (TREND AREA) APACHE CORPORATION 06299 WEATHERBY SPRABERRY (TREND AREA) SEM OPERATING COMPANY LLC 17509 WEATHERBY -A- SPRABERRY (TREND AREA) PITTS ENERGY CO. 04921 WEATHERBY -B- SPRABERRY (TREND AREA) PITTS ENERGY CO. 06286 WEATHERBY -B- SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 06335 WEATHERBY -C- SPRABERRY (TREND AREA) APACHE CORPORATION 06391 WEATHERBY -E- SPRABERRY (TREND AREA) APACHE CORPORATION 06392 WEATHERBY "F" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 07061 WEATHERBY "1219" SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 15217 WEATHERBY 1216 SPRABERRY (TREND AREA) PRIME OPERATING COMPANY 16357 WEATHERBY 1225-1226 ALLOC 01 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 19954 WEATHERBY 1225-1226 ALLOC 01 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20709 WEATHERBY 1225-1226 ALLOC 02 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20293 WEATHERBY 1225-1226 ALLOC 03 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20765 WEATHERBY 1225-1226 ALLOC 05 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20108 WEATHERBY 1225-1226 ALLOC 05 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20707 WEATHERBY 1225-1226 ALLOC 06 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20295 WEATHERBY 1225-1226 ALLOC 06 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20708 WEATHERBY 1225-1226 ALLOC 07 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20799 WEATHERBY 1225-1226 ALLOC 08 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20766 WEATHERBY 1225-1226 ALLOC 12 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20816 WEATHERBY 1225-1226 ALLOC 13 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20106 WEATHERBY 1225-1226 ALLOC 17 SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 20359 WEATHERBY 1231 SPRABERRY (TREND AREA) APACHE CORPORATION 06374 WEATHERBY 1232 SPRABERRY (TREND AREA) APACHE CORPORATION 16063 WEATHERBY 2728 UNIT SPRABERRY (TREND AREA) APACHE CORPORATION 19403 WEATHERBY 3231 UNIT A SPRABERRY (TREND AREA) R 40 EXC APACHE CORPORATION 20234 WEATHERBY, H. SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 07252 WEATHERBY, THERON SPRABERRY (TREND AREA) CHARGER SHALE OIL OPERATING, LLC 06291 WEATHERBY, THERON "D" SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 06578


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WEATHERFORD, B. R. BRANCH, SOUTH (TANNEHILL) O'DELL, MITCHELL 13016 WEATHERLY-PRYOR WILDCAT MOMENTUM ENERGY CORPORATION 17018 WEATHERLY-PRYOR A 4 CLARA COUCH (CISCO) SAFEMARK OIL & GAS, LLC 16434 WEATHERLY-PRYOR C 5 NOELKE (WOLFCAMP, LOWER) BOYD & MCWILLIAMS ENERGY GROUP 16503 WEATHERLY-PRYOR 5 NOELKE (WOLFCAMP, LOWER) OSBORN,W.B. OIL & GAS OPERATIONS 17587 WEBB, VERNON BALLINGER (PALO PINTO, N.) OIL, GAS, ETC. LLC 08124 WEBB, VERNON "B" BIG ED, N. (GARDNER LIME) OIL, GAS, ETC. LLC 12048 WEBB, VERNON B BALLINGER (PALO PINTO, N.) OIL, GAS, ETC. LLC 09455 WEBER SPRABERRY (TREND AREA) APACHE CORPORATION 16748 WEBER SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 10041 WEBSTER SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 01779 WEBSTER, J. F. CAMAR (PALO PINTO) TELESIS OPERATING CO., INC. 15910 WEBSTER, J. F. CAMAR (STRAWN-OIL) BOAZ ENERGY II OPERATING, LLC 04891 WEBSTER, J. F. CAMAR (STRAWN-OIL) BOAZ ENERGY II OPERATING, LLC 11497 WEBSTER, J.F. -B- FORT MCKAVITT (LIME 4150) TELESIS OPERATING CO., INC. 06433 WEDDELL /BATTERY #1/ SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20223 WEDDELL /BATTERY #2/ SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20224 WEDDELL /BATTERY #2/ SPRABERRY (TREND AREA) REGIONS OPERATING, LLC 01781 WEDDELL "19" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14243 WEDDELL "20" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08358 WEDDELL "4" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 08359 WEDDELL 74 WATER VALLEY (SAN ANDRES) ARKLAND PRODUCING CO., INC. 10931 WEDDELL 77 "A" WATER VALLEY (SAN ANGELO) CLEAR WATER INC. 10967 WEDDELL-HABY -C- SPRABERRY (TREND AREA) DE3 OPERATING LLC 14008 WEDDELL-HABY -E- SPRABERRY (TREND AREA) BIG LAKE J J OIL & GAS, INC. 14007 WEDDELL-HABY "E" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 10537 WEDDELL-HABY "G" SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 10538 WEDDELL-PAULEY -A- SPRABERRY (TREND AREA) BIG LAKE J J OIL & GAS, INC. 14011 WEDDELL, GEO. WATER VALLEY (SAN ANDRES) GREEN, ROY W. OIL & GAS 02102 WEDDELL, GEO. -A- WATER VALLEY (SAN ANDRES) BLACK GOLD WELL SERVICE 02087 WEDDELL, GEO. -C- WATER VALLEY (SAN ANDRES) BLACK GOLD WELL SERVICE 02104 WEDDELL, GEO. -CT- WATER VALLEY (SAN ANDRES) BLACK GOLD WELL SERVICE 04997 WEDDELL, GEO. -D- WATER VALLEY (SAN ANDRES) BLACK GOLD WELL SERVICE 02105 WEDDELL, GEORGE WATER VALLEY (SAN ANDRES) LEE-WALKER MINERAL, LLC 02560 WEDDELL, GEORGE -B- WATER VALLEY (SAN ANDRES) GREEN, ROY W. OIL & GAS 02328 WEDDELL, HABY -A- SPRABERRY (TREND AREA) DE3 OPERATING LLC 14004 WEDDELL, S. J. -B- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02351 WEDDELL, SADIE SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 10470 WEDDELL, SADIE -B- SPRABERRY (TREND AREA) BIG LAKE J J OIL & GAS, INC. 14002 WEDDELL, SADIE "4" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11824 WEDDELL, SADIE, ETAL SPRABERRY (TREND AREA) HIBERNIA RESOURCES III, LLC 01693 WEDDELL, W. C. WATER VALLEY (SAN ANDRES) BLACK GOLD WELL SERVICE 02106 WEGER UNIT WEGER (SAN ANDRES) ENDEAVOR ENERGY RESOURCES L.P. 05562 WEIR SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 16561 WEIR, J. C. 12 SPRABERRY (TREND AREA) PETROPLEX ENERGY INC. 17658 WEIR, J. C. 12 TRIUMPH (WOLFCAMP) PETROPLEX ENERGY INC. 13277 WELCH JAMESON PIMA ENERGY, LLC 07431 WELCH SPRABERRY (TREND AREA) APACHE CORPORATION 07158 WELCH SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 09371 WELCH (UNION) A SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11944 WELCH -168- JAMESON (STRAWN) PIMA ENERGY, LLC 11983


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WELCH "12" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 15517 WELCH "44" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 01552 WELCH TRUST 12 SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 18906 WELCH TRUST 13 SPRABERRY (TREND AREA) R 40 EXC ENDEAVOR ENERGY RESOURCES L.P. 18963 WELCH TRUST 8 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18982 WELCH TRUST 8-7-E SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 20376 WELCH TRUST 8-7-E SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 20772 WELLS SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 05221 WELLS, ONA SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 13984 WELLS, ONA "B" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 13945 WENDLAND WENDLAND (CROSS CUT) TCS PETROLEUM CO., LLC 11448 WENDLAND "A" WENDKIRK (CISCO) TCS PETROLEUM CO., LLC 11669 WENDLAND "B" WENDKIRK (CISCO) TCS PETROLEUM CO., LLC 15621 WERNER, M. E. "WERNER" BYERS (GARDNER) ATF PETROLEUM INC. 11177 WEST HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17257 WEST INTERSTATE (STRAWN) PIONEER GAS PIPELINE, INC. 09116 WEST "A" HOLT RANCH (CONSOLIDATED) APPROACH OPERATING LLC 17532 WEST "B" POZO RICO (WOLFCAMP) DIAMOND S ENERGY COMPANY 15183 WEST "19" CODY BELL (CANYON) CAPITOL WELL SERVICING CO., INC. 13861 WEST CEDERHOLM 1 BALLINGER, WEST (CAPPS) BRIGHTRIVER ENERGY CO 14447 WEST HARTGROVE UNIT 1 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19978 WEST TEXON UNIVERSITY 17 SPRABERRY (TREND AREA) APACHE CORPORATION 16171 WEST, MASSIE ET AL TR. OZONA, N. (CANYON) PRIME OPERATING COMPANY 12405 WEST, MASSIE ET AL TR. "A" OZONA, N. (CANYON) PRIME OPERATING COMPANY 12274 WEST, MRS. C. C., ETAL MOZELLE (QUEEN SD.) OXY USA INC. 02559 WESTLAND SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 06272 WESTLAND 26 SPRABERRY (TREND AREA) TRINITY ENVIRO SWD I, L.L.C. 16341 WFM UNIT WFM (GOEN LIME) ENRICH OIL CORPORATION 17674 WHEELER SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04777 WHEELER SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12153 WHEELER "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12808 WHELESS MENARD, W. (HARKEY) CAZAR ENERGY INC 15310 WHITE ESTATE "B" NEEDLE CREEK (STRAWN) FELDERHOFF PRODUCTION COMPANY 13848 WHITE RANCH WILDCAT CALLAN OPERATING COMPANY, LLC 19669 WHITE RANCH 'A' WILDCAT DISCOVERY OPERATING, INC. 20413 WHITEHEAD BRANCH, S. (BUNGER) WILLOWBEND INVESTMENTS, INC. 13475 WHITEHEAD BRANCH, S. (CAPPS) WILLOWBEND INVESTMENTS, INC. 16248 WHITEHEAD BRANCH, SOUTH (COOK, LOWER) WILLOWBEND INVESTMENTS, INC. 12648 WHITEHEAD BRANCH, S. (IVAN) WILLOWBEND INVESTMENTS, INC. 15892 WHITEHEAD BRANCH, S. (IVAN, UPPER) WILLOWBEND INVESTMENTS, INC. 13001 WHITEHEAD BRANCH, S. (PALO PINTO) WILLOWBEND INVESTMENTS, INC. 16123 WHITEHEAD BRANCH, SOUTH (TANNEHILL) WILLOWBEND INVESTMENTS, INC. 12642 WHITEHEAD BRANCH, SOUTH (UPPER COOK) WILLOWBEND INVESTMENTS, INC. 15067 WHITEHEAD 'A' CEDAR KNOLL (CROSSCUT SAND) WHITEHEAD PROPERTIES, INC 16836 WHITEHEAD, G. BRANCH, S. (BUNGER) WILLOWBEND INVESTMENTS, INC. 09681 WHITEHOUSE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 14223 WHITT SIXTY SEVEN (CLEAR FORK 3100) TOC ENERGY RESOURCES, LLC 15883 WHITTEN "A" REGAL (WOLFCAMP) OXY USA INC. 15244 WIGGINS-KNIGHT 116 JAMESON (STRAWN) CARDONA, LLC 10198 WILDE FWB (CANYON SAND) JOHNSON, CHARLES 12001 WILDE JANOR (RANGER) MARTIN MATRIX INC. 19529


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WILDE LIGHTSEY (HARKEY) B & G ENERGY CORPORATION 16216 WILDE MEIXNER (3500) 3-D OIL & GAS 12044 WILDE NORTON, W. (PALO PINTO) SEQUOIA FOSSIL FUELS, INC. 14843 WILDE SPRABERRY (TREND AREA) LAREDO PETROLEUM, INC. 17285 WILDE SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11729 WILDE -48- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04895 WILDE "B" SPRABERRY (TREND AREA) DE3 OPERATING LLC 04806 WILDE WH SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16662 WILDE-GRAY UNIT STAR LIGHT (PALO PINTO) STAR PRODUCTION, INC. 17874 WILDE, F. A. SPRABERRY (TREND AREA CL. FK.) PIONEER NATURAL RES. USA, INC. 12999 WILDE, H.J. SWD SPRABERRY (TREND AREA) ENVIRONMENTAL DISPOSAL SYSTEMS 10303 WILEY, ARCHIE M. BALLINGER (GARDNER) 3-D OIL & GAS 02827 WILKINSON FERRIS (CONSOLIDATED KING-HOPE) WALSH & WATTS, INC. 19443 WILKINSON - MCCORD CREWS, SOUTH (DOG BEND LIME) CEDAR OIL COMPANY 09295 WILKINSON "B" FERRIS (CONSOLIDATED KING-HOPE) WALSH & WATTS, INC. 19442 WILKINSON, E. G. FERRIS (CONSOLIDATED KING-HOPE) WALSH & WATTS, INC. 19441 WILLCOCKSON I. A. B. (HARRIS SAND) VANCO OIL & GAS CORP. 10486 WILLCOCKSON WEAVER RANCH (STRAWN) BLACK RIVER OPERATING, INC. 07010 WILLCOCKSON "A" BUFFALO CREEK (CADDO 6230) PERIMETER RESOURCE COMPANY 09059 WILLIAMS BEDDO EDMONDSON OIL & GAS 00126 WILLIAMS SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04661 WILLIAMS TANKERSLEY (SAN ANGELO) THP OPERATING LLC 05502 WILLIAMS TANKERSLEY (SAN ANGELO) TXP, INCORPORATED 19865 WILLIAMS TANKERSLEY (WOLFCAMP) LADD OIL & GAS CORPORATION 13840 WILLIAMS TANKERSLEY (5200) LADD OIL & GAS CORPORATION 04930 WILLIAMS TANKERSLEY (5200) TXP, INCORPORATED 11877 WILLIAMS -13- BROOKS (CANYON K) IRION CORPORATION, THE 10437 WILLIAMS -16- BROOKS (CANYON K) IRION CORPORATION, THE 10518 WILLIAMS -33- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04933 WILLIAMS 'G' TANKERSLEY (5200) THP OPERATING LLC 17768 WILLIAMS "C" TANKERSLEY (WOLFCAMP) TANKERSLEY SWD LLC 15614 WILLIAMS "C" TANKERSLEY (WOLFCAMP) THP OPERATING LLC 15234 WILLIAMS "D" TANKERSLEY (WOLFCAMP) THP OPERATING LLC 15620 WILLIAMS "E" TANKERSLEY (WOLFCAMP) SWARTZ OIL COMPANY 16335 WILLIAMS "11" BUTTES (WICHITA ALBANY) CIMAREX ENERGY CO. OF COLORADO 09443 WILLIAMS LADD TANKERSLEY (SAN ANGELO) LADD OIL & GAS CORPORATION 20306 WILLIAMS PEARL -A- SPRABERRY (TREND AREA) HULEN OPERATING COMPANY 18040 WILLIAMS PEARL B SPRABERRY (TREND AREA) HULEN OPERATING COMPANY 18082 WILLIAMS RANCH SIE WILLIAMS (STRAWN) SHARP IMAGE ENERGY, INC. 15193 WILLIAMS RANCH "A" WILLIAMS RANCH (CANYON) PETRODATA RESOURCES, INC. 15210 WILLIAMS 39 HOLT RANCH (CONSOLIDATED) THOMPSON, J. CLEO 17450 WILLIAMS 42 TANKERSLEY (WOLFCAMP) ARCH OIL & GAS, LLC 18134 WILLIAMS, M.R. SPIKE, NORTH (PALO PINTO) A - Z OPERATING LLC 10376 WILLIAMS, PEARL DOVE CREEK (CANYON -B-) HULEN OPERATING COMPANY 13376 WILLIAMS, PEARL DOVE CREEK, SOUTH HULEN OPERATING COMPANY 00428 WILLIAMS, PEARL DOVE CREEK, SOUTH (6500) TOC ENERGY RESOURCES, LLC 14686 WILLIAMS, PEARL DOVE SPRING, W. (CANYON -B-) UNIT PETROLEUM COMPANY 05295 WILLIAMS, PEARL LAS PERLAS (CANYON SD.) FORTUNE ENERGY, INC. 05912 WILLIAMS, PEARL LAS PERLAS (CANYON SD.) TOC ENERGY RESOURCES, LLC 05804 WILLIAMS, PEARL VELREX, W. (CANYON) TOC ENERGY RESOURCES, LLC 04888 WILLIAMS, PEARL -A- DOVE CREEK, SOUTH (6500) HULEN OPERATING COMPANY 14760


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WILLIAMS, PEARL -B- DOVE CREEK, SOUTH (6500) HULEN OPERATING COMPANY 00430 WILLIAMS, PEARL "A" DOVE CREEK (CANYON -B-) HULEN OPERATING COMPANY 13391 WILLIAMS, PEARL B BUTTES (STRAWN) HULEN OPERATING COMPANY 19368 WILLIAMS, PEARL B DOVE SPRING, W. (CANYON -B-) HULEN OPERATING COMPANY 19790 WILLIAMS, R. S. 'A' VELREX (WOLFCAMP) BREITBURN OPERATING L.P. 15100 WILLIAMS, R. S. "B" VELREX (CISCO 6260) BREITBURN OPERATING L.P. 09991 WILLIAMS, S. E. SPRABERRY (TREND AREA) HUNT OIL COMPANY 04839 WILLIAMS, T. D. ET AL OZONA, N. (CLEARFORK) S2 ENERGY, LLC 16714 WILLIAMS, T. D., ET AL HOLT RANCH (CONSOLIDATED) S2 ENERGY, LLC 17456 WILLIAMS, TROY VAUGHN CONSOLIDATED ESTATE OF TROY DAVIS WILLIAMS 19096 WILMA SPRABERRY (TREND AREA) SM ENERGY COMPANY 15527 WILMA (SA) A SPRABERRY (TREND AREA) SM ENERGY COMPANY 18892 WILMA (SA) B SPRABERRY (TREND AREA) SM ENERGY COMPANY 19014 WILMA (SA) C SPRABERRY (TREND AREA) SM ENERGY COMPANY 18652 WILMA (SA) D SPRABERRY (TREND AREA) SM ENERGY COMPANY 19408 WILMA DORCUS (SA) E SPRABERRY (TREND AREA) SM ENERGY COMPANY 20031 WILMA DORCUS (SA) F SPRABERRY (TREND AREA) SM ENERGY COMPANY 20050 WILMA DORCUS (SA) G SPRABERRY (TREND AREA) SM ENERGY COMPANY 20039 WILMA DORCUS (SA) J SPRABERRY (TREND AREA) SM ENERGY COMPANY 19547 WILMA DORCUS (SA) K SPRABERRY (TREND AREA) SM ENERGY COMPANY 19551 WILMA DORCUS (SA) L SPRABERRY (TREND AREA) SM ENERGY COMPANY 19553 WILMA DORCUS (SA) N SPRABERRY (TREND AREA) SM ENERGY COMPANY 19946 WILMA DORCUS (SA) O SPRABERRY (TREND AREA) SM ENERGY COMPANY 19975 WILMA DORCUS (SA) V SPRABERRY (TREND AREA) SM ENERGY COMPANY 19951 WILMA DORCUS (SA) W SPRABERRY (TREND AREA) SM ENERGY COMPANY 19952 WILMA DORCUS (SA) X SPRABERRY (TREND AREA) SM ENERGY COMPANY 19927 WILSON CARLSBAD (STRAWN REEF) THP OPERATING LLC 07480 WILSON DICK RICHARDSON (PALO PINTO,LI.) VIATHON HYDROCARBONS, INC. 11107 WILSON PEGASUS (CONSOLIDATED) COG OPERATING LLC 17163 WILSON - POPE CARL CAHILL (STRAWN) ROBERTSON RESOURCES, INC. 13179 WILSON -O- PEGASUS, W. (BEND) SM ENERGY COMPANY 12372 WILSON -137- RAMON (LEONARD) ENDEAVOR ENERGY RESOURCES L.P. 11868 WILSON "A" BUFFALO BLUFF FLINT OAK ENERGY, LLC 11584 WILSON "A" ELIZA BAKER, NORTH (CADDO) BYRD OPERATING COMPANY 15957 WILSON "45" SPRABERRY (TREND AREA CL. FK.) ATLAS OPERATING LLC 11691 WILSON ESTATE CAMAR, SW. (STRAWN 4350) OSBORN HEIRS COMPANY 04240 WILSON O SPRABERRY (TREND AREA) SM ENERGY COMPANY 16560 WILSON RANCH 101 WILLIAMS RANCH (STRAWN) SHARP IMAGE ENERGY, INC. 17645 WILSON, BEAVELY BEAVELY WILSON (CANYON 3750) OZARK EXPLORATION, INC. 08961 WILSON, RALPH W. ELIZA BAKER, NORTH (CADDO) BYRD OPERATING COMPANY 11837 WILSON, W. D. NICK OF TIME (HOPE) DAUBERT OPERATING, L.L.C. 15275 WIMBERLEY, FLORA SILVER (CANYON) MISSION ENERGY INC. 13399 WIN-TER SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18799 WINDHAM AMACKER-TIPPETT, S. (WOLFCAMP) SUMMIT PETROLEUM LLC 14392 WINDHAM AMACKER-TIPPETT, SW (STRAWN) SUMMIT PETROLEUM LLC 13229 WINDHAM PEGASUS (CONSOLIDATED) COG OPERATING LLC 18392 WINDHAM SPRABERRY (TREND AREA) KRF PRODUCTION COMPANY LLC 10947 WINDHAM SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 18266 WINDHAM WILLRODE (STRAWN) PETEX 02132 WINDHAM -C- SPRABERRY (TREND AREA) HUNT OIL COMPANY 05003 WINDHAM "A" PEGASUS (CONSOLIDATED) COG OPERATING LLC 17547


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WINDHAM "D" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10653 WINDHAM "E" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11810 WINDHAM "F" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12096 WINDHAM "N" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 11469 WINDHAM "R" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13082 WINDHAM "S" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 13150 WINDHAM "T" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 03901 WINDHAM "120" SPRABERRY (TREND AREA) APACHE CORPORATION 14816 WINDHAM "128" SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 17060 WINDHAM "158" KING MOUNTAIN, N. (BEND) XTO ENERGY INC. 08648 WINDHAM "4H" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11389 WINDHAM "43" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17306 WINDHAM TXL B1 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20009 WINDHAM TXL B10 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20005 WINDHAM TXL B2 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20003 WINDHAM TXL B3 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20069 WINDHAM TXL B4 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20060 WINDHAM TXL B5 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20006 WINDHAM TXL B6 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20061 WINDHAM TXL B7 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20068 WINDHAM TXL B8 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20004 WINDHAM TXL B9 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20076 WINDHAM TXL C1 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20117 WINDHAM TXL C10 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20118 WINDHAM TXL C11 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20129 WINDHAM TXL C12 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20091 WINDHAM TXL C3 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20130 WINDHAM TXL C4 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20157 WINDHAM TXL C5 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20133 WINDHAM TXL C6 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20147 WINDHAM TXL C7 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20167 WINDHAM TXL C8 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20158 WINDHAM TXL C9 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20159 WINDHAM TXL R16 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20983 WINDHAM TXL R17 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20987 WINDHAM TXL R18 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20982 WINDHAM TXL R19 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20880 WINDHAM TXL R20 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20924 WINDHAM TXL R21 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20973 WINDHAM TXL R22 PEGASUS (CONSOLIDATED) COG OPERATING LLC 20977 WINDHAM 43 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 18848 WINDHAM 7 SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19326 WINDHAM, ELIZABETH AMACKER-TIPPETT (DEVONIAN) SOUTHWEST ROYALTIES, INC. 15794 WINDHAM, ELIZABETH BARNET-AMACKER (FUSSELMAN) SOUTHWEST ROYALTIES, INC. 14787 WINDHAM, ELIZABETH SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 16666 WINDHAM, KENNARD "A" PEGASUS (DEVONIAN) XTO ENERGY INC. 14354 WINDHAM, R. S. AMACKER-TIPPETT (WOLFCAMP) SOUTHWEST ROYALTIES, INC. 16547 WINDHAM, R. S. CORVETTE (WOLFCAMP) CHEVRON U. S. A. INC. 13152 WINDHAM, R. S. SPRABERRY (TREND AREA) APACHE CORPORATION 14534 WINDHAM, R. S. SPRABERRY (TREND AREA) CHEVRON U. S. A. INC. 18205 WINDHAM, R. S. SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 16652


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WINDHAM, R. S. WILSHIRE (CONSOLIDATED) SOUTHWEST ROYALTIES, INC. 15316 WINDHAM, R. S. "A" CORVETTE (WOLFCAMP) EOG RESOURCES, INC. 13517 WINDHAM, R. S. 101 SPRABERRY (TREND AREA) APACHE CORPORATION 14492 WINDHAM, R. S., ET AL 2A JACK HERBERT (DEVONIAN) KAISER-FRANCIS OIL COMPANY 03871 WINDHAM, R.S. SPRABERRY (TREND AREA) XTO ENERGY INC. 18917 WINDHAM, R.S. 'A' WILSHIRE (PENNSYLVANIAN) EOG RESOURCES, INC. 20336 WINDHAM, R.S. "B" A/C 2 SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 15807 WINDHAM, R.S. "C" SPRABERRY (TREND AREA) SOUTHWEST ROYALTIES, INC. 15808 WINDHAM, R.S. B SPRABERRY (TREND AREA) XTO ENERGY INC. 18738 WINDMILL - CVCBSA HARRY BUSH (STRAWN) SINCLAIR ENERGY CORPORATION 15154 WINDY POINT SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 17945 WINDY POINT A SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18047 WINDY POINT D SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 18417 WINGATE SANFORD (FRY) CO ENERGY 12521 WINTERBOTHAM DOVE CREEK (SAN ANGELO) SCHKADE EXPLORATION 03682 WINTERBOTHAM DOVE CREEK, E. (CLEAR FORK 1075) SCHKADE EXPLORATION 04865 WINTERBOTHAM LAS PERLAS (CANYON SD.) FORTUNE ENERGY, INC. 05952 WINTERBOTHAM LAS PERLAS (CANYON SD.) OXY USA INC. 06023 WINTERBOTHAM -D- DOVE CREEK (CANYON -D-) FORTUNE ENERGY, INC. 06942 WINTERBOTHAM -K- DOVE CREEK (CANYON -D-) OXY USA INC. 11716 WINTERBOTHAM -28- DOVE CREEK (CANYON -D-) REO OPERATING LLC 07023 WINTERBOTHAM 'A' BUTTES NORTH (UPPER CANYON A) FOSSIL PETROLEUM LLC 14398 WINTERBOTHAM '4A' DOVE CREEK (CISCO) FORTUNE ENERGY, INC. 15555 WINTERBOTHAM "B" BUTTES NORTH (UPPER CANYON A) FOSSIL PETROLEUM LLC 09945 WINTERBOTHAM "B" DOVE CREEK (CANYON -D-) ARCH OIL & GAS, LLC 07784 WINTERBOTHAM "C" DOVE CREEK (CANYON -D-) ARCH OIL & GAS, LLC 10130 WINTERBOTHAM "D" DOVE CREEK (CANYON -D-) ARCH OIL & GAS, LLC 07959 WINTERBOTHAM "E" DOVE CREEK (CANYON -C-) FORTUNE ENERGY, INC. 07327 WINTERBOTHAM "F" DOVE CREEK (CANYON -D-) ARCH OIL & GAS, LLC 08522 WINTERBOTHAM "H" DOVE CREEK (CANYON -D-) ARCH OIL & GAS, LLC 08257 WINTERBOTHAM "I" DOVE CREEK (CANYON -D-) ARCH OIL & GAS, LLC 10590 WINTERBOTHAM "K-1" DOVE CREEK (CANYON -D-) GGP EXPLORATION, LTD. 11037 WINTERBOTHAM "K" DOVE CREEK (CANYON -D-) ENERGY TWENTY OPERATING LLC 10988 WINTERBOTHAM "K" DOVE CREEK (CANYON -D-) TXP, INCORPORATED 15662 WINTERBOTHAM "29" BROOKS (CANYON K) IRION CORPORATION, THE 08622 WINTERBOTHAM "34" DOVE CREEK (CANYON -B-) DSR OIL & GAS, INC. 12485 WINTERBOTHAM "41" BROOKS (CANYON K) DSR OIL & GAS, INC. 13327 WINTERBOTHAM "41" VELREX (HENDERSON UPPER) DSR OIL & GAS, INC. 12670 WINTERBOTHAM 33-1 DOVE CREEK (CANYON -D-) OXY USA INC. 12902 WINTERBOTHAM 781 DOVE CREEK (CANYON -C-) TOC ENERGY RESOURCES, LLC 15008 WINTERBOTHAM, -A- LAS PERLAS (CANYON SD.) FORTUNE ENERGY, INC. 06027 WINTERBOTHAM, J. M. DOVE CREEK (CANYON -B-) OXY USA INC. 04509 WINTERS /STRAWN/ UNIT WINTERS (STRAWN) QUAIL WELL SERVICE, INC. 04526 WISE WILDCAT SIERRA BLANCA OPERATING 20881 WISHBONE-RICHARDS FORT CHADBOURNE, NW. RING ENERGY, INC. 19171 WLK-BROOKSHIER, GORDON SAXON (GRAY) D & S PETROLEUM 09963 WOLTERS JOHN SCOTT (GRAYBURG) MICHAELSON PRODUCING COMPANY 10150 WOLTERS SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 05642 WOLTERS -A- TG JOHN SCOTT (GRAYBURG) RED TANK RESOURCES, LLC 04742 WOLTERS -B- TG JOHN SCOTT (GRAYBURG) MARTIN, JIMMY INC 04743 WOLTERS -D- TG JOHN SCOTT (GRAYBURG) COPPERTOP 04744


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WOLTERS "A" JOHN SCOTT (GRAYBURG) MICHAELSON PRODUCING COMPANY 10481 WOLTERS ESTATE SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 08333 WOLTERS ESTATE B SPRABERRY (TREND AREA) DISCOVERY NATURAL RESOURCES LLC 08313 WOMACK SPRABERRY (TREND AREA) GLOSSOP OIL & GAS, LLC 13977 WOOD WOOD (GARDNER) EDMONDSON OIL & GAS 11253 WOOD, G. M. BEDDO TKP PETROLEUM, INC. 09886 WOOD, M. L. MC DONNELL (FRY, LO.) DELTEX MINERALS INC. 09675 WOOD, M. L. WOOD (MORRIS) DELTEX MINERALS INC. 09920 WOOD, M.L. CREWS, SOUTH (DOG BEND LIME) DELTEX MINERALS INC. 09105 WOODFIN SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16106 WOODFIN-DOLLIE E16B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20526 WOODFIN-DOLLIE E16C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20764 WOODFIN-DOLLIE W16B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20818 WOODFIN-DOLLIE W16C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20841 WOODS RE 210 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19194 WOODS 211-218 ALLOC 00 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20754 WOODS 211-218 ALLOC 01 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20427 WOODS 211-218 ALLOC 01 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20824 WOODS 211-218 ALLOC 02 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20366 WOODS 211-218 ALLOC 05 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20362 WOODS 211-218 ALLOC 06 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20426 WOODS 211-218 ALLOC 06 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20823 WOODS 211-218 ALLOC 07 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20363 WOODS 211-218 ALLOC 07 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20839 WOODS 211-218 ALLOC 08 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20804 WOODS 211-218 ALLOC 09 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20364 WOODS 211-218 ALLOC 09 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20838 WOODS 211-218 ALLOC 10 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20429 WOODS 211-218 ALLOC 10 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20802 WOODS 211-218 ALLOC 12 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20428 WOODS 211-218 ALLOC 12 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20803 WOODS 211-218 ALLOC 2 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20840 WOODS 212-217 ALLOC 00 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20284 WOODS 212-217 ALLOC 00 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20686 WOODS 212-217 ALLOC 01 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19940 WOODS 212-217 ALLOC 01 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20692 WOODS 212-217 ALLOC 02 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19819 WOODS 212-217 ALLOC 02 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20693 WOODS 212-217 ALLOC 03 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19858 WOODS 212-217 ALLOC 03 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20690 WOODS 212-217 ALLOC 04 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20339 WOODS 212-217 ALLOC 04 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20691 WOODS 212-217 ALLOC 05 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20292 WOODS 212-217 ALLOC 05 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20837 WOODS 212-217 ALLOC 06 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19830 WOODS 212-217 ALLOC 06 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20694 WOODS 212-217 ALLOC 07 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20343 WOODS 212-217 ALLOC 07 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20687 WOODS 212-217 ALLOC 08 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19879 WOODS 212-217 ALLOC 08 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20688 WOODS 212-217 ALLOC 09 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19881


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WOODS 212-217 ALLOC 10 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19857 WOODS 212-217 ALLOC 10 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20689 WOODS 212-217 ALLOC 11 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19891 WOODS 212-217 ALLOC 11 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20695 WOODS 212-217 ALLOC 12 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19889 WOODS 212-217 ALLOC 12 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20696 WOODS 212-217 ALLOC 13 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19892 WOODS 212-217 ALLOC 14 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19900 WOODS 212-217 ALLOC 14 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20855 WOODS 213-216 ALLOC 00 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20825 WOODS 213-216 ALLOC 01 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20323 WOODS 213-216 ALLOC 01 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20826 WOODS 213-216 ALLOC 02 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20286 WOODS 213-216 ALLOC 03 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20288 WOODS 213-216 ALLOC 03 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20702 WOODS 213-216 ALLOC 04 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20303 WOODS 213-216 ALLOC 05 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20320 WOODS 213-216 ALLOC 05 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20701 WOODS 213-216 ALLOC 06 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20302 WOODS 213-216 ALLOC 07 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20287 WOODS 213-216 ALLOC 07 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20700 WOODS 213-216 ALLOC 08 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20301 WOODS 213-216 ALLOC 09 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20283 WOODS 213-216 ALLOC 09 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20699 WOODS 213-216 ALLOC 10 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20321 WOODS 213-216 ALLOC 11 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20312 WOODS 213-216 ALLOC 11 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20698 WOODS 213-216 ALLOC 12 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20291 WOODS 213-216 ALLOC 13 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20311 WOODS 213-216 ALLOC 13 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20697 WOODS 213-216 ALLOC 14 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20285 WOODS 213-216 ALLOC 15 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20289 WOODS 213-216 ALLOC 15 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20856 WOODS 213-216 ALLOC 16 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 20290 WOODS 218 LIN (WOLFCAMP) SABLE PERMIAN RESOURCES, LLC 19321 WOODS 218 SPRABERRY (TREND AREA) R 40 EXC SABLE PERMIAN RESOURCES, LLC 20703 WOOLEY MCCAMEY MOSAIC MIDLAND LLC 00899 WOOLEY "7" BENEDUM (FUSSELMAN) HENRY RESOURCES LLC 11068 WOOLEY "7" SPRABERRY (TREND AREA) HENRY RESOURCES LLC 16553 WOOLEY 5 SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18462 WOOLRIDGE "11" BENEDUM (WOLFCAMP) HENRY RESOURCES LLC 16057 WOOLRIDGE "11" SPRABERRY (TREND AREA) HENRY RESOURCES LLC 16109 WOOTEN SPRABERRY (TREND AREA) PRIDE ENERGY COMPANY 14051 WORD, ELLEN A. MCKAY CREEK (CABALLOS) WHITE ROCK OIL & GAS, LLC 08607 WORLD WEST STRAWN UNIT WORLD, WEST (STRAWN) PARALLEL PETROLEUM LLC 03241 WRIGHT SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 12386 WRIGHT 'A' BYERS (GARDNER) WINDOW OPERATING CO., THE 18148 WRIGHT 'B' WILDCAT WINDOW OPERATING CO., THE 18969 WRIGHT 'N' BYERS (GARDNER) WINDOW OPERATING CO., THE 18655 WRIGHT "38" SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02671 WRIGHT C BYERS (HOME CREEK) WINDOW OPERATING CO., THE 18196


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ WRIGHT, H. J. "A" SPRABERRY (TREND AREA) BAM PERMIAN OPERATING, LLC 11056 WRIGHT, H. J. 1-46 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 02732 WRIGHT, RUBY SPRABERRY (TREND AREA) CONOCOPHILLIPS COMPANY 04542 WRIGHT, RUBY "A" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 10381 WRIGHT, RUBY, -46- SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04832 WTG UNIT LIN (WOLFCAMP) EARTHSTONE OPERATING, LLC 18692 WTG UNIT 1 LIN (WOLFCAMP) EARTHSTONE OPERATING, LLC 18722 WTG UNIT 4-232 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19660 WTG UNIT 4-232 A SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20017 WTG UNIT 5-234 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19452 WTG UNIT 5-234 B SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 19793 WTG 5-233 SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20035 WTG 5-233 A SPRABERRY (TREND AREA) EARTHSTONE OPERATING, LLC 20036 WWR RUSSELL BSA (STRAWN SAND) RUSSELL PRODUCING, LLC 16356 XB COX 20 "A" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17133 XB COX 20 "B" SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 17317 XBC "138" SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16418 XBC GIDDINGS ESTATE SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16349 XBC GIDDINGS ESTATE A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16409 XBC GIDDINGS ESTATE B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 17101 XBC GIDDINGS ESTATE C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16483 XBC GIDDINGS ESTATE D SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 16572 XBC GIDDINGS ESTATE F SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18699 XBC GIDDINGS ESTATE G SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18697 XBC GIDDINGS ESTATE H SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18700 XBC GIDDINGS ESTATE I SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18704 XBC GIDDINGS ESTATE J SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 18698 XBC GIDDINGS ESTATE K SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19149 XBC GIDDINGS ESTATE L SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19141 XBC GIDDINGS ESTATE M SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19167 XBC GIDDINGS ESTATE N SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19142 XBC GIDDINGS ESTATE R40 SPRABERRY (TREND AREA) R 40 EXC PIONEER NATURAL RES. USA, INC. 18718 XBC GIDDINGS ESTATE 434C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19872 XBC GIDDINGS ESTATE 434D SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19833 XBC GIDDINGS ESTATE 434E SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19704 XBC GIDDINGS ESTATE 434F SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19782 XBC GIDDINGS ESTATE 434G SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 19836 XBC-CAROLINE 3B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20775 XBC-CAROLINE 3C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20798 XBC-CAROLINE 3K SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20820 XBC-CAROLINE 3L SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20819 XBC-CAROLINE 3M SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20822 XBC-FRANK 427A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20866 XBC-FRANK 427C SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20863 XBC-UNRUH 3A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20524 XBC-UNRUH 3B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20525 XBC-XBC A 4B SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20875 XBC-XBC B 3A SPRABERRY (TREND AREA) PIONEER NATURAL RES. USA, INC. 20828 XRL VELREX (HENDERSON) DISCOVERY OPERATING, INC. 04265 YAN-KEE (CANYON SAND) FIELD MA YAN-KEE (CANYON SAND) TWIN OAKS CONSTRUCTION COMPANY 12308 YATES NORTH SWD NO. 1 YATES (DISPOSAL ONLY) KINDER MORGAN PRODUCTION CO LLC 14938


DISTRICT 07C

------------------------------------------------------------------------------------------------------------------------------------ ---LEASE NAME--- FIELD NAME ORGANIZATION LEASE NAME NUMBER------------------------------------------------------------------------------------------------------------------------------------ YATES NORTH SWD NO. 2 YATES (DISPOSAL ONLY) KINDER MORGAN PRODUCTION CO LLC 14939 YATES NORTH SWD NO. 3 YATES (DISPOSAL ONLY) KINDER MORGAN PRODUCTION CO LLC 14931 YATES NORTH SWD NO. 4 YATES (DISPOSAL ONLY) KINDER MORGAN PRODUCTION CO LLC 14950 YOCHAM & WHITLEY SPRABERRY (TREND AREA) FOUR SWD, INC. 13975 YOCHAM, J.W. MOZELLE (QUEEN SD.) TXP, INCORPORATED 08586 YOCHAM, J.W. RAMON (LEONARD) TXP, INCORPORATED 19220 YOUNG WINTERS (GARDNER) DBO OIL INCORPORATED 07728 YOUNG, CHICO PRISCILLA (GRAYBURG) MCCAMMON OIL & GAS, INC. 08931 YOUNG, CHICO "A" PRISCILLA (GRAYBURG) MCCAMMON OIL & GAS, INC. 13498 YOUNG, J. W. PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 03735 YOUNG, J. W. -A- PRICE (GRAYBURG) ENDEAVOR ENERGY RESOURCES L.P. 04070 YOUNG, J. W. "B" PRICE (GRAYBURG) POYNOR, D. D. 11208 YOUNG, WALTER PRISCILLA (GRAYBURG) MCCAMMON OIL & GAS, INC. 04455 YVONNE SPRABERRY (TREND AREA) SUMMIT PETROLEUM LLC 16636 ZAIN 26 SPRABERRY (TREND AREA) R 40 EXC PARSLEY ENERGY OPERATIONS, LLC 18467 ZAIN 26 SWD SPRABERRY (TREND AREA) PARSLEY ENERGY OPERATIONS, LLC 19503 ZEKE EAST I 22-21 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20998 ZEKE WEST A 22-21 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20438 ZEKE WEST B 22-21 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20439 ZEKE WEST C 22-21 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20927 ZEKE WEST D 22-21 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20926 ZEKE WEST F 22-21 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20972 ZEKE WEST G 22-21 SPRABERRY (TREND AREA) DE3 OPERATING LLC 20925 ZINN AMACKER-TIPPETT, E. (DEVONIAN) ENDEAVOR ENERGY RESOURCES L.P. 15177 ZINN SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 18556 ZPZ FEE WILDCAT APACHE CORPORATION 18611 ZPZ FEE SQUARE TOP (BARN-WOOD) APACHE CORPORATION 19275 ZPZ FEE 1055 SPRABERRY (TREND AREA) APACHE CORPORATION 18858 ZULETTE SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 03361 ZULETTE SPRABERRY (TREND AREA) PITTS ENERGY CO. 03593 ZULETTE 27-28 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11781 ZULETTE 8 SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 11736 1492 SWD SPRABERRY (TREND AREA) RETURN DISPOSAL, LLC 20952 20707 HARALSON SPRABERRY (TREND AREA) ENDEAVOR ENERGY RESOURCES L.P. 04850 3-S CATTLE CO. WILDCAT ASA OIL & GAS, INC. 14556 7 UNIVERSITY 54 UNIVERSITY 54 (ELLENBURGER) BOYD & MCWILLIAMS ENERGY GROUP 08633 7813 JV-P LAKE 'B' SPRABERRY (TREND AREA) SABLE PERMIAN RESOURCES, LLC 07836 8 MILE SWD FARMER (SAN ANDRES) RAINS ENERGY, LLC 18763 8ELBING 23 OZONA, NE. (CANYON SAND) EPIC PERMIAN OPERATING, LLC 14427 9ORRELL ARENA (KING SAND) DAMRON ENERGY, LLC 15959

aug 30, 2020 oil lease name index listing page 747 ......2020/08/29 · alexander robbie spraberry...

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