CASING HEAD PRESSURE FINE TUNING inDual String Gas Lift WellWith Injection Pressure Operated ValveBy: Gatut Widianoko ( Weatherford )Herry Subekti ( BP Indonesia )Wahyu Jatmiko ( BP Indonesia )ASME WORK SHOP - KUALA LUMPUR 2003

Abstract After two ( 2 ) years gas lift optimization performed with concentrated in gas lift change out, starting this year 2003, Bp -Indonesia begin to focus on Casing Head Pressure Tuning.

The first year, the gas lift optimization had made 3500 bopd oil gain, and the second year had made 4000 bopd oil gains. This year, up-to the second quarter 2003, BP had made 4500 bopd oil gains. This total gains is came from 40 % gas lift change out, and 60 % from Casing Head Pressure Tuning.

Today we are going to talk about the steps of casing head pressure tuning of the BP-Indonesia gas lift optimization on dual string gas lift well as follow :

1) Identify the gas lift well problems ;

2) Nodal analyzing to determine the well potential ;

3) Optimize point of injection of both string by gas lift change out ;

4) Perform Tuning Casing Head Pressure to optimize both string.

Offshore North West Java Oil Field

Old Oil Field with more than 30 years oldHigh FGOR with 1000 : 1 or moreLow PI with only about 1 3 blpd / psiLow Production with about 200 - 500 blpdLow Static Pressure with average ~ 600 psiLimited Casing Pressure with ~ 600 psi onlyFlowing Tubing Pressure is about 180 psiShallow well - reservoir depth ~ 3000 ft TVDLimited data (SBHP and PI is normally unknown)Old wells - may have leaking valve or tubingSome gas lift valves installed 5-10 years agoSome gas lift header choke stuck open/closeBP Wells General Conditions

CHP Fine Tuning Candidates Wells( Gas Lift Optimization )

Suddenly production rate dropSuddenly the well deadCasing Head Pressure unstableSuddenly gas injection rate increase/decreaseInaccurate gas rate measureRobbing, and cause one (1) string dead or dropThe well shutdown under maintenanceThe well shut-in while service status Gas lift Change out is being performSuddenly Casing Head Pressure IncreaseSuddenly Casing Head Pressure decreaseSuddenly Flowing Tubing Head Pressure increase

Casing Head Pressure TuningSteps in Dual Gas Lift well

Use graphical method to construct the well condition. Draw the static and flowing pressure gradient, etc.Select Kick Off and best Operating pressure available.Use 90% (max) off Kick Off as Operating pressure.Select best point of injection of both string ( close or same depth ) and operating port size (close or same size).Use same surface opening and closing pressure for both string valve.Perform gas lift well performance by software on each string to determine optimum condition .Perform CHP tuning by open the Gas Lift Header Choke and set at the kick off pressure selected.Adjusts the CHP slowly to reach the Best Surface Operating Pressure selected.Record the Rates. Select the best rate and keep best CHP.

Graphical Method0500100010001500200030004000DEPTH

Ft

TVDPRESSURE (p s i)FTPCHP1200 p s iCasing PressureEcho- WellsMid PerforationTubing Pressure #1#2#3#70.45 p s i / ft0.1 p s I / ftFLFBHPKick OffOperating Pres.(To determine best Point of Injection, KO and OP)

Gas Lift Well Performance Gas Injection Rate Vs Production RateQ lQ iQ I : Gas in Rate mscfdQ l : Prod. Rate blpdOptimum Point

Why Do

Casing Head Pressure tuning

instead of Gas Injection Rate Tuning ?

Gas Measurement Problems Not each platform has a good measurement facilities Some Gas Measuring inaccurate Gas Injection rate not recorded Gas in VS CHP does not make sense We Decided Using CHP as parameter to optimize gas injection Adjust CHP to find a best production rate of both String Measure Gas In, after best CHP reached / selected Record and keep best CHP of each Well

WHAT IS BEST CHPWhere is the existing CHP ?Is it too high ? Any un-loader valve reopen?Is the existing gas in too much ?Do We need to decrease it ? ORIs it too low ? Is the existing gas in too low ?Can the existing CHP pressure reach the operating valve ?Do we need to Increase it ? Any actions needs to be done ?Back to The Original Operating Pressure Design

Decreasing CHP0500100010001500200030004000DEPTH

Ft

TVDPRESSURE (p s i)FTPCHP1200 p s iCasing PressureEcho- WellsMid PerforationTubing Pressure #1#2#3#70.45 p s i / ft0.1 p s I / ftFLFBHPKick OffBest Operating Pres.(To determine Best Operating Pressure) Existing CHPToo High

Increasing CHP0500100010001500200030004000DEPTH

Ft

TVDPRESSURE (p s i)FTPCHP1200 p s iCasing PressureEcho- WellsMid PerforationTubing Pressure #1#2#3#70.45 p s i / ft0.1 p s I / ftFLFBHPKick OffOperating Pres.(To determine Best Operating Pressure) Existing CHPToo Low

Some Wells Sample of CHP tuning at BP-IndonesiaOil Gains : 250 b o p dSample : ABest CHPBest CHP : 520 p s i

Sheet1

Gas Lift Optimization at EC-2ST well

StatusCHKFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pretest64/64"140691.276810552.7719.66551.41580

Test 164/64"14086496010548.43571.28546.23560

Test 264/64"140777.686410543.6629.17540.3540

Test 364/64"140972108010542.31502.14532.7520

Post test64/64"140950.4105610545.87516.92528.59520

Gas Lift Optimization at EF-4L well

StatusCHKFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pretest32/64"19014.414490650

Test 132/64"19016.816890640

Test 232/64"19014.414490600

Test 332/64"1901212090580

Test 432/64"1907.27290540

Test 532/64"1907.27290520

Post test32/64"19016.8168902431446640CHP optimum

Gas Lift Optimization at EF-5 well

StatusCHKFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pretest64/64"1301101.612241016581355650

Test 164/64"1301110.51233.910864700624630Gas lift optimization

Test 264/64"140777.686410543.6629.17540.3540with GFC-200 running

Test 364/64"140972108010542.31502.14532.7520

Test 264/64"1301145127210816642552610with GFC-200 running

Test 364/64"1301209.6134410744615516590test to measure gas in

Test 464/64"1301166.4129610672576432570and gas out

Test 564/64"1301123.2124810624500360550

Post test64/64"1301188132010720546504590

Sheet2

Sheet3

Some Wells Sample of CHP tuning at BP-IndonesiaOil Gains : 70 b o p dSample : BBest CHP440

Sheet1

RESULT OF GAS LIFT TUNING AT FOXTROT AREA

Gas Lift Tuning at FFB-1

StatusCHK 1/64 inFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pre well test801007046885---610Prior tuning

Test 1801009764885---615

Test 28010010167285---620

Test 38010010167285---625

1000---

1000---

1000---

Test 48010011073285---630Test Over night

Post well test8010011073285---630Max CHP available

Gain40

00

00

00

Test 372000---640

Post well test6415013433460---600

Gas Lift Tuning at FFB-2L

StatusCHK 1/64 inFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pre well test5622019095280---360Prior tuning

Test 1562206231280---500Prod Drop

Test 256220220110180---340Optimum Rate

Test 35622016482080330

Post well test56220220110180---340After tuning

1000---

1000---

1000---

Test 48010011073285---630Test Over night

Post well test8010011073285---630Max CHP available

Gain30

Gas Lift Tuning at FFB-2S

StatusCHK 1/64 inFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pre well test641206868290---360Prior tuning

Test 164120---500

Test 2100---340

Test 3100330

Post well test100---340

100---

100---

100---

Test 264120---340Optimum rate

Test 364120330

Post well test641206868490---340After Tuning

Gain0

Gas Lift Tuning at FFB-3S

StatusCHK 1/64 inFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pre well test64120128128490---380Prior tuning

Test 164120125124890---400Max CHP achieved

Post well test64120128128490---380After Tuning

Gain0

Gas Lift Tuning at FFB-7

StatusCHK 1/64 inFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pre well test7212021686475---200Prior tuning

Test 17212022589875---300

Test 27212023192475---400

Test 372120288115275---440Optimum rate

Test 472120252100875---460

Post well test72120288115275---440After Tuning

Gain72

Gas Lift Tuning at FFB-6L

StatusCHK 1/64 inFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pre well test641007248085---600Prior tuning

Test 1641008355285---580Optimum rate

Test 2641005838485---560

Post well test641008355285---580After Tuning

Gain11

Sheet2

Sheet3

Some Wells Sample of CHP tuning at BP-Indonesia

Oil Gains : 80 b o p dSample : CBest CHPBest CHP : 590 p s i

Sheet1

Gas Lift Optimization at EC-2ST well

StatusCHKFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pretest64/64"140691.276810552.7719.66551.41580

Test 164/64"14086496010548.43571.28546.23560

Test 264/64"140777.686410543.6629.17540.3540

Test 364/64"140972108010542.31502.14532.7520

Post test64/64"140950.4105610545.87516.92528.59520

Gas Lift Optimization at EF-4L well

StatusCHKFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pretest32/64"19014.414490650

Test 132/64"19016.816890640

Test 232/64"19014.414490600

Test 332/64"1901212090580

Test 432/64"1907.27290540

Test 532/64"1907.27290520

Post test32/64"19016.8168902431446640CHP optimum

Gas Lift Optimization at EF-5 well

StatusCHKFTP (Psi)BOPDBFPDW/C (%)TOTAL GAS (Mscfd)GLR (SCF/STB)GL GAS (Mscfd)CHP (psi)Remark

Pretest64/64"1301101.612241016581355650

Test 164/64"1301110.51233.910864700624630Gas lift optimization

Test 264/64"140777.686410543.6629.17540.3540with GFC-200 running

Test 364/64"140972108010542.31502.14532.7520

Test 264/64"1301145127210816642552610with GFC-200 running

Test 364/64"1301209.6134410744615516590test to measure gas in

Test 464/64"1301166.4129610672576432570and gas out

Test 564/64"1301123.2124810624500360550

Post test64/64"1301188132010720546504590

Sheet2

Sheet3

Sample of One PlatformCHP Tuning Results* Total Gains for one platform by CHP tuning : 150 b o p d* Gas gains is not recorded* Working Days : 10 days.

Sheet1

SUMMARY OF GAS LIFT TUNING AT FOXTROT AREA

Comparison between pre-test and post test after tuning

WELLPre-testPOST WELL TEST AFTER TUNINGTOTAL GAIN (Bopd)REMARK

COMPLETE DATECHP (Psi)FTP (Psi)FLUID (Bfpd)OIL (Bopd)W/C (%)TOTAL GAS (Mscfd)GLR (scf/stb)GL GAS (Mscfd)COMPLETE DATECHP (Psi)FTP (Psi)FLUID (Bfpd)OIL (Bopd)W/C (%)TOTAL GAINS (Bopd)RemarkGL GAS (Mscfd)

FFB-115-Jul-036102204687085---16-Jul-036302207231108540--40

FFB-2L16-Jul-0336012095219080---17-Jul-0334012011012208030--30

FFB-2S17-Jul-033601206826890---18-Jul-0334012068468900--0

FFB-3S18-Jul-03380120128412890---18-Jul-033801201284128900--0

--0

--0

--0

FFB-6L20-Jul-036001004807285---20-Jul-0358010055283851011

FFB-719-Jul-0320012086421675---19-Jul-034401201152288757072

TOTAL:153

Sheet2

Sheet3

Total Oil Gains by CHP Tuning YTD up to 2nd Qtr

2nd quarter

GAS LIFT OPTIMIZATION YEAR TO DATE

PERIODE

JANUARY - JUNE, 2003

SUMMARY WELL REVIEWED

* Total well potential to be GLVC:87wells

* Already optimum/no potential:18wells

* New well/spacing mandrel:5wells

* Tunning:44wells

* Need FGS and SBHP survey:36wells

Total Well Reviewed:190wells

COMPLETED GLVC JOB

* Completed by Wireline31wells

* Completed by Seapup0wells

OIL GAIN PRODUCTION

NoWellCompleted DateWell Work TypeJob DescriptionStatus before Well WorkEst. Gain, bopdPre-test, bopdPost-test, bopdTest DateGain, bopd

1EQA-1S4-Jan-03W/LGLVCDead32017316-Jun-03173

2BB-1S15-Jan-03TuningGL80197212-Jun-0353

3EZA-4L21-Jan-03W/LGLVCDead100116-Mar-0311

4EZC-522-Jan-03TuningGL120412504-Mar-03209

5BB-1L25-Jan-03W/LGLVCGL50164821-Jun-0332

6LB-129-Jan-03TuningGL41282-Jun-03

7UB-3S29-Jan-03TuningGL31215-Jun-039

8BC-6L30-Jan-03W/LGLVCGL1013224-Jun-0360

9BM-22-Feb-03W/LGLVCGL401628620-Apr-03

10FG-3L2-Feb-03W/LGLVCDead80

11LLA-3S11-Feb-03W/LGLVCDead1001787-Jun-03178

12EB-4S13-Feb-03W/LGLVCDead301489-Jun-03148

13BF-4S21-Feb-03W/LGLVCGL934910-Jun-03

14BK-3S24-Feb-03W/LGLVCGL30155916-May-0344

15EC-2ST5-Mar-03TuningGL691118024-Jun-03489

16EF-4L8-Mar-03TuningGL144116-Jun-0327

17EF-59-Mar-03TuningGL110113536-Jun-03252

18EZA-3S10-Mar-03W/LGLVCDead11311311-Mar-03113

19EC-4L11-Mar-03TuningGL15970580617-Jun-03101

20EJ-3S13-Mar-03TuningGL6813417515-Jun-0341

21EQB-3L16-Mar-03TuningGL114731715-May-0398

22EQB-3S16-Mar-03TuningGL8416-Mar-03

23EZE-518-Mar-03TuningGL5113318-Mar-0382

24EQC-4L19-Mar-03W/LGLVCGL10051565-Apr-035

25BF-1L20-Mar-03W/LGLVCGL1001905411-Jun-03

260EF-5

27LB-4STL31-Mar-03TuningGL403962-Jun-03356

27EF-2L10-Apr-03TuningGL38246514-Jun-0341

28MBA-2S10-Apr-03TuningGL1301041036-Jun-03

29MBA-3S12-Apr-03TuningGL5946421-Jun-03

30MB-2S14-Apr-03TuningGL1099710115-Jun-034

31LLD-514-Apr-03W/LGLVCDead3003327-Jun-0333

32

33BG-8L16-Apr-03W/LGLVCGL6030Estimated30

34EZE-4S17-Apr-03W/LGLVCDead7035Estimated35

35LA-9L17-Apr-03W/LGLVCDead2001152-May-03115

36BG-8S17-Apr-03W/LGLVCGL279140Estimated140

37MBA-1S18-Apr-03TuningGL11379756-Jun-03

38BB-3S19-Apr-03TuningGL986313414-Jun-0371

39LLD-820-Apr-03TuningDead4510014-May-03100

40UB-4L23-Apr-03TuningGL656617121-Jun-03105

41EQB-2L24-Apr-03W/LGLVCDead10050Estimated50

42BE-5L4-May-03TuningGL333322120826-Jun-03886

43EB-6S11-May-03W/LGLVCDead20014029-Jun-03140

44EB-112-May-03W/LGLVCGL452551579-Jun-03

45KLB-315-May-03W/LGLVCDead1501717-Jun-0317

46EQA-918-May-03W/LGLVCGL2044966285-Jun-03132

47ED-4L18-May-03TuningGL93521465-Jun-0394

48BK-6S21-May-03W/LGLVCGL40284310-Jun-0312

49KLA-1431-May-03W/LGLVCGL130709529-Jun-0325

50FFB-2S6-Jun-03W/LGLVCDead40-20Estimated20

51KLB - 1011-Jun-03W/LGLVCGL14076427-Jun-0364

52EB-510-Jun-03W/LGLVCGL7514019016-Jun-0350

53FFB-2L6-Jun-03W/LGLVCDead200_17217-Jun-0330

54LB-5L29-Jun-03W/LGLVCDead250_125Estimated125

55EC-6ST29-Jun-03W/LGLVCGL3039615Estimated15

Note:5200570399424815

Tested well85.5%

Untested8 well

Potential gain5200

Oil gain tested4400

Oil gain potential415 Bopd (untested yet)

2nd quarter

Tuning Result

Oil Rate

GLVCO Result

53

262

262

271

760

787

1039

1140

1181

1279

1279

1361

1717

1758

1758

1758

1762

1762

1833

1933

2038

2038

2132

3018

3018

Tuning

Time

BOPD

Tuning Result As per June 30

GL Optimization

173

184

216

276

276

276

454

602

602

646

759

764

764

797

827

967

1002

1117

1167

1307

1307

1324

1456

1468

1493

1513

1543

1593

1657

1782

1797

1797

GLVCO

Time

BOPD

GLVCO Result as per June 30

GLVCO vs Tuning

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

GL Optimization Result

GLVCO vs Tuning2

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

Tuning vs GLVCO

Result 2003

1797

3018

Test Result After GLV Optimization

Year to Date July 01, 2003

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHPGLVCOTuning

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi

1EQA-1S4-Jan-03Dead-----50032035390150480320GLV c/ocompleted16-Jun-031731734-Jan-0317315-Jan-03531731734-Jan-030

0EZA-4L21-Jan-03------30010065250150580100GLV c/ono drawdown6-Mar-03111121-Jan-0318422-Jan-0326217315-Jan-035353

0BB-1L25-Jan-033351695.22388059748160500500808035015060050GLV c/ocompleted21-Jun-03483225-Jan-0321629-Jan-032621118421-Jan-0353

0BC-6L30-Jan-03221054.5454545455222120570-------GLV c/oTuning24-Jun-031326030-Jan-0327629-Jan-0327118422-Jan-03209262

0BM-22-Feb-0334916255722005604002005025020055040GLV c/owater cut increase20-Apr-038602-Feb-032765-Mar-037603221625-Jan-03262

0FG-3L2-Feb-03Dead-----500808040018055080GLV c/o100% WC02-Feb-032768-Mar-0378721629-Jan-039271

13LLA-3S11-Feb-03Dead-----30010065400200550100GLV c/ocompleted7-Jun-0317817811-Feb-034549-Mar-0310396027630-Jan-03271

14EB-4S13-Feb-03Dead-----2501504020016050030GLV c/ocompleted9-Jun-0314814813-Feb-0360211-Mar-03114017845411-Feb-03271

15BF-4S21-Feb-031899350310150590-------GLV c/oDROP10-Jun-0349021-Feb-0360213-Mar-03118114860213-Feb-03271

16BK-3S24-Feb-03231534.78260869574813542080503523012550030GLV c/ocompleted16-May-03594424-Feb-0364616-Mar-0312794464624-Feb-03271

0EZA-3S10-Mar-03Dead-----45911375376190610113GLV c/oGains frm LS 50 bopd11-Mar-0311311310-Mar-0375916-Mar-0312796465-Mar-03489760

0EQC-4L19-Mar-0370513011317065020015030150170650100GLV c/ocompleted5-Apr-0356519-Mar-0376418-Mar-0313616468-Mar-0327787

0BF-1L20-Mar-031951902303003803202902300200600100GLV c/oHigh W/C 98 %11-Jun-0354020-Mar-0376431-Mar-0317176469-Mar-032521039

0LLD-514-Apr-03Dead70030060350150600300GLV c/oCompleted27-Jun-03333314-Apr-0379710-Apr-03175811375910-Mar-031039

0BG - 8L16-Apr-0349295802241455109001508030015055060GLV c/oAwaiting on TestEstimated303016-Apr-0382710-Apr-03175875911-Mar-031011140

0BG - 8S17-Apr-0330512160211150510100040060400150550279GLV c/oAwaiting on TestEstimated14014017-Apr-0396712-Apr-03175875913-Mar-03411181

0EZE-4S17-Apr-03Dead_____300707525018060070GLV c/oAwaiting on TestEstimated353517-Apr-03100214-Apr-03176275916-Mar-03981279

0LA - 9L17-Apr-03Dead_____40020050100150650200GLV c/oCompleted2-May-0311511517-Apr-03111718-Apr-03176275918-Mar-03821361

0EQB-2L24-Apr-03Dead_____50010075200150600100GLV c/oAwaiting on TestEstimated505024-Apr-03116719-Apr-031833576419-Mar-031361

0EB-6S11-May-03Dead62020070210120550200GLV c/oDROP29-Jun-0314014011-May-03130720-Apr-03193376431-Mar-033561717

0EB-112-May-03486255485921506406003005030013058050GLV c/ocompleted9-Jun-03157012-May-03130723-Apr-03203876410-Apr-03411758

0KLB-315-May-03Dead30015050100180580150GLV c/ocompleted17-Jun-03171715-May-03132429-apr--03203876414-Apr-0341762

0EQA-918-May-035864961541514060080070015400140580100GLV c/ocompleted5-Jun-0362813218-May-03145618-May-0321323379714-Apr-031762

0BK-6S21-May-032872890384220600380689035018060040GLV c/ocompleted10-Jun-03431221-May-0314684-May-0330183082716-Apr-031762

0KLA-1431-May-03207706030018060065020060300180600130GLV c/ocompleted29-Jun-03952531-May-031493290111717-Apr-031762

0FFB-2S6-Jun-03Shut-in-----400401030013060040GLV c/oAwaiting on TestEstimated20206-Jun-031513111719-Apr-03711833

0FFB-2L6-Jun-03Shut-in_____100020080350160600200GLV c/oAwaiting on Test17-Jun-03172306-Jun-031543111720-Apr-031001933

0EB-510-Jun-03190140222571806206003504030018060075GLV c/ocompleted16-Jun-031905010-Jun-031593111723-Apr-031052038

0KLB - 1011-Jun-0348785309180500100015085400180600140GLV c/oAwaiting on Test27-Jun-03646411-Jun-03165750116724-Apr-032038

0LB-5L29-Jun-03Shut-in_____60025055300180610250GLV c/oAwaiting on TestEstimated12512529-Jun-03178211674-May-038862924

0EC-6ST29-Jun-03688396433691406007504304330014055030GLV c/oAwaiting on TestEstimated151529-Jun-031797140130711-May-032924

Total2742Total Oil Gain1,79730-Jun-03179730-Jun-03301817132415-May-032924

132145618-May-03943018

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd12146821-May-033018

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHP25149331-May-033018

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi5015436-Jun-033018

0BB-1S15-Jan-031921990.1041666667481805005001008030015055080TuningCHP tuning /monitoring12-Jun-03725315-Jan-035350159310-Jun-033018

0EZC-522-Jan-03694140014065040024040200140600120TuningCHP tuning /monitoring4-Mar-0325020922-Jan-0326264165711-Jun-033018

0LB-129-Jan-031674175.44910179640145560-------TuningDROP2-Jun-0328029-Jan-03262140179729-Jun-033018

0UB-3S29-Jan-032438580200600-------TuningCHP tuning / monitoring15-Jun-0312929-Jan-032710.0179730-Jun-030.03018

0EC-2ST5-Mar-0376869110551140580-----520-TuningCHP tuning24-Jun-0311804895-Mar-03760

0EF-4L8-Mar-031441490-190650-----640-TuningCHP tuning16-Jun-0341278-Mar-03787

0EF-59-Mar-031224110110-130650-----590-TuningCHP tuning6-Jun-0313532529-Mar-031039

0EC-4L11-Mar-037057050704160400108086420_130400159Tuningcompleted17-Jun-0380610111-Mar-031140

0EJ-3S13-Mar-034531347052214063067220220_14060068TuningCompleted15-Jun-031754113-Mar-031181

0EQB-3L16-Mar-03106733137318048028818735_160400114TuningCompleted5-May-031719816-Mar-031279

0EQB-3S16-Mar-031183038013045024580_120400_TuningUnder Evaluations16-Mar-034016-Mar-031279

0EZE-518-Mar-0399514871140350Tuningcompleted18-Mar-031338218-Mar-031361

0LB-4STL31-Mar-032644084.8484848485_240540-------TuningCompleted2-Jun-0339635631-Mar-031717

0EF - 2L10-Apr-033362492755240630622629010014559038TuningCompleted14-Jun-03654110-Apr-031758

0MBA-2S10-Apr-0327910463_150560____140480130TuningCompleted6-Jun-03103010-Apr-031758

0MBA-3S12-Apr-034704690_140600____14556059TuningCompleted1-Jun-0342012-Apr-031758

0MB-2S14-Apr-033989780_140580____130540109TuningCompleted15-Jun-03101414-Apr-031762

0MBA-1S18-Apr-032147963_110600____110550113TuningCompleted6-Jun-0375018-Apr-031762

0BB - 3S19-Apr-032576375241005108461338480314057098TuningCompleted14-Jun-031347119-Apr-031833

0LLD - 820-Apr-03Dead0____90455010018065045TuningCompleted14-May-0310010020-Apr-031933

0UB-4L23-Apr-0328166761411405204171316912013054065TuningCompleted21-Jun-0317110523-Apr-032038

0LB-4STS-------TuningShut in due to sand prob.029-apr--032038

0ED-4L18-May-031525265NR17058043014565-200470-Tuning5-Jun-031469418-May-032132

0BE - 54-May-03341322513991906007016655661160660340TuningTuning26-Jun-0312088864-May-033018

Total1538Total Oil Gain3,01830-Jun-033018

Total Oil Gains by Gas Lift Change Out YTD up to 2nd Qtr 03

2nd quarter

GAS LIFT OPTIMIZATION YEAR TO DATE

PERIODE

JANUARY - JUNE, 2003

SUMMARY WELL REVIEWED

* Total well potential to be GLVC:87wells

* Already optimum/no potential:18wells

* New well/spacing mandrel:5wells

* Tunning:44wells

* Need FGS and SBHP survey:36wells

Total Well Reviewed:190wells

COMPLETED GLVC JOB

* Completed by Wireline31wells

* Completed by Seapup0wells

OIL GAIN PRODUCTION

NoWellCompleted DateWell Work TypeJob DescriptionStatus before Well WorkEst. Gain, bopdPre-test, bopdPost-test, bopdTest DateGain, bopd

1EQA-1S4-Jan-03W/LGLVCDead32017316-Jun-03173

2BB-1S15-Jan-03TuningGL80197212-Jun-0353

3EZA-4L21-Jan-03W/LGLVCDead100116-Mar-0311

4EZC-522-Jan-03TuningGL120412504-Mar-03209

5BB-1L25-Jan-03W/LGLVCGL50164821-Jun-0332

6LB-129-Jan-03TuningGL41282-Jun-03

7UB-3S29-Jan-03TuningGL31215-Jun-039

8BC-6L30-Jan-03W/LGLVCGL1013224-Jun-0360

9BM-22-Feb-03W/LGLVCGL401628620-Apr-03

10FG-3L2-Feb-03W/LGLVCDead80

11LLA-3S11-Feb-03W/LGLVCDead1001787-Jun-03178

12EB-4S13-Feb-03W/LGLVCDead301489-Jun-03148

13BF-4S21-Feb-03W/LGLVCGL934910-Jun-03

14BK-3S24-Feb-03W/LGLVCGL30155916-May-0344

15EC-2ST5-Mar-03TuningGL691118024-Jun-03489

16EF-4L8-Mar-03TuningGL144116-Jun-0327

17EF-59-Mar-03TuningGL110113536-Jun-03252

18EZA-3S10-Mar-03W/LGLVCDead11311311-Mar-03113

19EC-4L11-Mar-03TuningGL15970580617-Jun-03101

20EJ-3S13-Mar-03TuningGL6813417515-Jun-0341

21EQB-3L16-Mar-03TuningGL114731715-May-0398

22EQB-3S16-Mar-03TuningGL8416-Mar-03

23EZE-518-Mar-03TuningGL5113318-Mar-0382

24EQC-4L19-Mar-03W/LGLVCGL10051565-Apr-035

25BF-1L20-Mar-03W/LGLVCGL1001905411-Jun-03

260EF-5

27LB-4STL31-Mar-03TuningGL403962-Jun-03356

27EF-2L10-Apr-03TuningGL38246514-Jun-0341

28MBA-2S10-Apr-03TuningGL1301041036-Jun-03

29MBA-3S12-Apr-03TuningGL5946421-Jun-03

30MB-2S14-Apr-03TuningGL1099710115-Jun-034

31LLD-514-Apr-03W/LGLVCDead3003327-Jun-0333

32

33BG-8L16-Apr-03W/LGLVCGL6030Estimated30

34EZE-4S17-Apr-03W/LGLVCDead7035Estimated35

35LA-9L17-Apr-03W/LGLVCDead2001152-May-03115

36BG-8S17-Apr-03W/LGLVCGL279140Estimated140

37MBA-1S18-Apr-03TuningGL11379756-Jun-03

38BB-3S19-Apr-03TuningGL986313414-Jun-0371

39LLD-820-Apr-03TuningDead4510014-May-03100

40UB-4L23-Apr-03TuningGL656617121-Jun-03105

41EQB-2L24-Apr-03W/LGLVCDead10050Estimated50

42BE-5L4-May-03TuningGL333322120826-Jun-03886

43EB-6S11-May-03W/LGLVCDead20014029-Jun-03140

44EB-112-May-03W/LGLVCGL452551579-Jun-03

45KLB-315-May-03W/LGLVCDead1501717-Jun-0317

46EQA-918-May-03W/LGLVCGL2044966285-Jun-03132

47ED-4L18-May-03TuningGL93521465-Jun-0394

48BK-6S21-May-03W/LGLVCGL40284310-Jun-0312

49KLA-1431-May-03W/LGLVCGL130709529-Jun-0325

50FFB-2S6-Jun-03W/LGLVCDead40-20Estimated20

51KLB - 1011-Jun-03W/LGLVCGL14076427-Jun-0364

52EB-510-Jun-03W/LGLVCGL7514019016-Jun-0350

53FFB-2L6-Jun-03W/LGLVCDead200_17217-Jun-0330

54LB-5L29-Jun-03W/LGLVCDead250_125Estimated125

55EC-6ST29-Jun-03W/LGLVCGL3039615Estimated15

Note:5200570399424815

Tested well85.5%

Untested8 well

Potential gain5200

Oil gain tested4400

Oil gain potential415 Bopd (untested yet)

2nd quarter

Tuning Result

Oil Rate

GLVCO Result

53

262

262

271

760

787

1039

1140

1181

1279

1279

1361

1717

1758

1758

1758

1762

1762

1833

1933

2038

2038

2132

3018

3018

Tuning

Time

BOPD

Tuning Result As per June 30

GL Optimization

173

184

216

276

276

276

454

602

602

646

759

764

764

797

827

967

1002

1117

1167

1307

1307

1324

1456

1468

1493

1513

1543

1593

1657

1782

1797

1797

GLVCO

Time

BOPD

GLVCO Result as per June 30

GLVCO vs Tuning

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

GL Optimization Result

GLVCO vs Tuning2

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

Tuning vs GLVCO

Result 2003

1797

3018

Test Result After GLV Optimization

Year to Date July 01, 2003

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHPGLVCOTuning

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi

1EQA-1S4-Jan-03Dead-----50032035390150480320GLV c/ocompleted16-Jun-031731734-Jan-0317315-Jan-03531731734-Jan-030

0EZA-4L21-Jan-03------30010065250150580100GLV c/ono drawdown6-Mar-03111121-Jan-0318422-Jan-0326217315-Jan-035353

0BB-1L25-Jan-033351695.22388059748160500500808035015060050GLV c/ocompleted21-Jun-03483225-Jan-0321629-Jan-032621118421-Jan-0353

0BC-6L30-Jan-03221054.5454545455222120570-------GLV c/oTuning24-Jun-031326030-Jan-0327629-Jan-0327118422-Jan-03209262

0BM-22-Feb-0334916255722005604002005025020055040GLV c/owater cut increase20-Apr-038602-Feb-032765-Mar-037603221625-Jan-03262

0FG-3L2-Feb-03Dead-----500808040018055080GLV c/o100% WC02-Feb-032768-Mar-0378721629-Jan-039271

13LLA-3S11-Feb-03Dead-----30010065400200550100GLV c/ocompleted7-Jun-0317817811-Feb-034549-Mar-0310396027630-Jan-03271

14EB-4S13-Feb-03Dead-----2501504020016050030GLV c/ocompleted9-Jun-0314814813-Feb-0360211-Mar-03114017845411-Feb-03271

15BF-4S21-Feb-031899350310150590-------GLV c/oDROP10-Jun-0349021-Feb-0360213-Mar-03118114860213-Feb-03271

16BK-3S24-Feb-03231534.78260869574813542080503523012550030GLV c/ocompleted16-May-03594424-Feb-0364616-Mar-0312794464624-Feb-03271

0EZA-3S10-Mar-03Dead-----45911375376190610113GLV c/oGains frm LS 50 bopd11-Mar-0311311310-Mar-0375916-Mar-0312796465-Mar-03489760

0EQC-4L19-Mar-0370513011317065020015030150170650100GLV c/ocompleted5-Apr-0356519-Mar-0376418-Mar-0313616468-Mar-0327787

0BF-1L20-Mar-031951902303003803202902300200600100GLV c/oHigh W/C 98 %11-Jun-0354020-Mar-0376431-Mar-0317176469-Mar-032521039

0LLD-514-Apr-03Dead70030060350150600300GLV c/oCompleted27-Jun-03333314-Apr-0379710-Apr-03175811375910-Mar-031039

0BG - 8L16-Apr-0349295802241455109001508030015055060GLV c/oAwaiting on TestEstimated303016-Apr-0382710-Apr-03175875911-Mar-031011140

0BG - 8S17-Apr-0330512160211150510100040060400150550279GLV c/oAwaiting on TestEstimated14014017-Apr-0396712-Apr-03175875913-Mar-03411181

0EZE-4S17-Apr-03Dead_____300707525018060070GLV c/oAwaiting on TestEstimated353517-Apr-03100214-Apr-03176275916-Mar-03981279

0LA - 9L17-Apr-03Dead_____40020050100150650200GLV c/oCompleted2-May-0311511517-Apr-03111718-Apr-03176275918-Mar-03821361

0EQB-2L24-Apr-03Dead_____50010075200150600100GLV c/oAwaiting on TestEstimated505024-Apr-03116719-Apr-031833576419-Mar-031361

0EB-6S11-May-03Dead62020070210120550200GLV c/oDROP29-Jun-0314014011-May-03130720-Apr-03193376431-Mar-033561717

0EB-112-May-03486255485921506406003005030013058050GLV c/ocompleted9-Jun-03157012-May-03130723-Apr-03203876410-Apr-03411758

0KLB-315-May-03Dead30015050100180580150GLV c/ocompleted17-Jun-03171715-May-03132429-apr--03203876414-Apr-0341762

0EQA-918-May-035864961541514060080070015400140580100GLV c/ocompleted5-Jun-0362813218-May-03145618-May-0321323379714-Apr-031762

0BK-6S21-May-032872890384220600380689035018060040GLV c/ocompleted10-Jun-03431221-May-0314684-May-0330183082716-Apr-031762

0KLA-1431-May-03207706030018060065020060300180600130GLV c/ocompleted29-Jun-03952531-May-031493290111717-Apr-031762

0FFB-2S6-Jun-03Shut-in-----400401030013060040GLV c/oAwaiting on TestEstimated20206-Jun-031513111719-Apr-03711833

0FFB-2L6-Jun-03Shut-in_____100020080350160600200GLV c/oAwaiting on Test17-Jun-03172306-Jun-031543111720-Apr-031001933

0EB-510-Jun-03190140222571806206003504030018060075GLV c/ocompleted16-Jun-031905010-Jun-031593111723-Apr-031052038

0KLB - 1011-Jun-0348785309180500100015085400180600140GLV c/oAwaiting on Test27-Jun-03646411-Jun-03165750116724-Apr-032038

0LB-5L29-Jun-03Shut-in_____60025055300180610250GLV c/oAwaiting on TestEstimated12512529-Jun-03178211674-May-038862924

0EC-6ST29-Jun-03688396433691406007504304330014055030GLV c/oAwaiting on TestEstimated151529-Jun-031797140130711-May-032924

Total2742Total Oil Gain1,79730-Jun-03179730-Jun-03301817132415-May-032924

132145618-May-03943018

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd12146821-May-033018

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHP25149331-May-033018

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi5015436-Jun-033018

0BB-1S15-Jan-031921990.1041666667481805005001008030015055080TuningCHP tuning /monitoring12-Jun-03725315-Jan-035350159310-Jun-033018

0EZC-522-Jan-03694140014065040024040200140600120TuningCHP tuning /monitoring4-Mar-0325020922-Jan-0326264165711-Jun-033018

0LB-129-Jan-031674175.44910179640145560-------TuningDROP2-Jun-0328029-Jan-03262140179729-Jun-033018

0UB-3S29-Jan-032438580200600-------TuningCHP tuning / monitoring15-Jun-0312929-Jan-032710.0179730-Jun-030.03018

0EC-2ST5-Mar-0376869110551140580-----520-TuningCHP tuning24-Jun-0311804895-Mar-03760

0EF-4L8-Mar-031441490-190650-----640-TuningCHP tuning16-Jun-0341278-Mar-03787

0EF-59-Mar-031224110110-130650-----590-TuningCHP tuning6-Jun-0313532529-Mar-031039

0EC-4L11-Mar-037057050704160400108086420_130400159Tuningcompleted17-Jun-0380610111-Mar-031140

0EJ-3S13-Mar-034531347052214063067220220_14060068TuningCompleted15-Jun-031754113-Mar-031181

0EQB-3L16-Mar-03106733137318048028818735_160400114TuningCompleted5-May-031719816-Mar-031279

0EQB-3S16-Mar-031183038013045024580_120400_TuningUnder Evaluations16-Mar-034016-Mar-031279

0EZE-518-Mar-0399514871140350Tuningcompleted18-Mar-031338218-Mar-031361

0LB-4STL31-Mar-032644084.8484848485_240540-------TuningCompleted2-Jun-0339635631-Mar-031717

0EF - 2L10-Apr-033362492755240630622629010014559038TuningCompleted14-Jun-03654110-Apr-031758

0MBA-2S10-Apr-0327910463_150560____140480130TuningCompleted6-Jun-03103010-Apr-031758

0MBA-3S12-Apr-034704690_140600____14556059TuningCompleted1-Jun-0342012-Apr-031758

0MB-2S14-Apr-033989780_140580____130540109TuningCompleted15-Jun-03101414-Apr-031762

0MBA-1S18-Apr-032147963_110600____110550113TuningCompleted6-Jun-0375018-Apr-031762

0BB - 3S19-Apr-032576375241005108461338480314057098TuningCompleted14-Jun-031347119-Apr-031833

0LLD - 820-Apr-03Dead0____90455010018065045TuningCompleted14-May-0310010020-Apr-031933

0UB-4L23-Apr-0328166761411405204171316912013054065TuningCompleted21-Jun-0317110523-Apr-032038

0LB-4STS-------TuningShut in due to sand prob.029-apr--032038

0ED-4L18-May-031525265NR17058043014565-200470-Tuning5-Jun-031469418-May-032132

0BE - 54-May-03341322513991906007016655661160660340TuningTuning26-Jun-0312088864-May-033018

Total1538Total Oil Gain3,01830-Jun-033018

Total Oil Gains After Gas Lift Optimization YTD up to 2nd Qtr 03

2nd quarter

GAS LIFT OPTIMIZATION YEAR TO DATE

PERIODE

JANUARY - JUNE, 2003

SUMMARY WELL REVIEWED

* Total well potential to be GLVC:87wells

* Already optimum/no potential:18wells

* New well/spacing mandrel:5wells

* Tunning:44wells

* Need FGS and SBHP survey:36wells

Total Well Reviewed:190wells

COMPLETED GLVC JOB

* Completed by Wireline31wells

* Completed by Seapup0wells

OIL GAIN PRODUCTION

NoWellCompleted DateWell Work TypeJob DescriptionStatus before Well WorkEst. Gain, bopdPre-test, bopdPost-test, bopdTest DateGain, bopd

1EQA-1S4-Jan-03W/LGLVCDead32017316-Jun-03173

2BB-1S15-Jan-03TuningGL80197212-Jun-0353

3EZA-4L21-Jan-03W/LGLVCDead100116-Mar-0311

4EZC-522-Jan-03TuningGL120412504-Mar-03209

5BB-1L25-Jan-03W/LGLVCGL50164821-Jun-0332

6LB-129-Jan-03TuningGL41282-Jun-03

7UB-3S29-Jan-03TuningGL31215-Jun-039

8BC-6L30-Jan-03W/LGLVCGL1013224-Jun-0360

9BM-22-Feb-03W/LGLVCGL401628620-Apr-03

10FG-3L2-Feb-03W/LGLVCDead80

11LLA-3S11-Feb-03W/LGLVCDead1001787-Jun-03178

12EB-4S13-Feb-03W/LGLVCDead301489-Jun-03148

13BF-4S21-Feb-03W/LGLVCGL934910-Jun-03

14BK-3S24-Feb-03W/LGLVCGL30155916-May-0344

15EC-2ST5-Mar-03TuningGL691118024-Jun-03489

16EF-4L8-Mar-03TuningGL144116-Jun-0327

17EF-59-Mar-03TuningGL110113536-Jun-03252

18EZA-3S10-Mar-03W/LGLVCDead11311311-Mar-03113

19EC-4L11-Mar-03TuningGL15970580617-Jun-03101

20EJ-3S13-Mar-03TuningGL6813417515-Jun-0341

21EQB-3L16-Mar-03TuningGL114731715-May-0398

22EQB-3S16-Mar-03TuningGL8416-Mar-03

23EZE-518-Mar-03TuningGL5113318-Mar-0382

24EQC-4L19-Mar-03W/LGLVCGL10051565-Apr-035

25BF-1L20-Mar-03W/LGLVCGL1001905411-Jun-03

260EF-5

27LB-4STL31-Mar-03TuningGL403962-Jun-03356

27EF-2L10-Apr-03TuningGL38246514-Jun-0341

28MBA-2S10-Apr-03TuningGL1301041036-Jun-03

29MBA-3S12-Apr-03TuningGL5946421-Jun-03

30MB-2S14-Apr-03TuningGL1099710115-Jun-034

31LLD-514-Apr-03W/LGLVCDead3003327-Jun-0333

32

33BG-8L16-Apr-03W/LGLVCGL6030Estimated30

34EZE-4S17-Apr-03W/LGLVCDead7035Estimated35

35LA-9L17-Apr-03W/LGLVCDead2001152-May-03115

36BG-8S17-Apr-03W/LGLVCGL279140Estimated140

37MBA-1S18-Apr-03TuningGL11379756-Jun-03

38BB-3S19-Apr-03TuningGL986313414-Jun-0371

39LLD-820-Apr-03TuningDead4510014-May-03100

40UB-4L23-Apr-03TuningGL656617121-Jun-03105

41EQB-2L24-Apr-03W/LGLVCDead10050Estimated50

42BE-5L4-May-03TuningGL333322120826-Jun-03886

43EB-6S11-May-03W/LGLVCDead20014029-Jun-03140

44EB-112-May-03W/LGLVCGL452551579-Jun-03

45KLB-315-May-03W/LGLVCDead1501717-Jun-0317

46EQA-918-May-03W/LGLVCGL2044966285-Jun-03132

47ED-4L18-May-03TuningGL93521465-Jun-0394

48BK-6S21-May-03W/LGLVCGL40284310-Jun-0312

49KLA-1431-May-03W/LGLVCGL130709529-Jun-0325

50FFB-2S6-Jun-03W/LGLVCDead40-20Estimated20

51KLB - 1011-Jun-03W/LGLVCGL14076427-Jun-0364

52EB-510-Jun-03W/LGLVCGL7514019016-Jun-0350

53FFB-2L6-Jun-03W/LGLVCDead200_17217-Jun-0330

54LB-5L29-Jun-03W/LGLVCDead250_125Estimated125

55EC-6ST29-Jun-03W/LGLVCGL3039615Estimated15

Note:5200570399424815

Tested well85.5%

Untested8 well

Potential gain5200

Oil gain tested4400

Oil gain potential415 Bopd (untested yet)

2nd quarter

Tuning Result

Oil Rate

GLVCO Result

53

262

262

271

760

787

1039

1140

1181

1279

1279

1361

1717

1758

1758

1758

1762

1762

1833

1933

2038

2038

2132

3018

3018

Tuning

Time

BOPD

Tuning Result As per June 30

GL Optimization

173

184

216

276

276

276

454

602

602

646

759

764

764

797

827

967

1002

1117

1167

1307

1307

1324

1456

1468

1493

1513

1543

1593

1657

1782

1797

1797

GLVCO

Time

BOPD

GLVCO Result as per June 30

GLVCO vs Tuning

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

GL Optimization Result

GLVCO vs Tuning2

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

Tuning vs GLVCO

Result 2003

1797

3018

Test Result After GLV Optimization

Year to Date July 01, 2003

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHPGLVCOTuning

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi

1EQA-1S4-Jan-03Dead-----50032035390150480320GLV c/ocompleted16-Jun-031731734-Jan-0317315-Jan-03531731734-Jan-030

0EZA-4L21-Jan-03------30010065250150580100GLV c/ono drawdown6-Mar-03111121-Jan-0318422-Jan-0326217315-Jan-035353

0BB-1L25-Jan-033351695.22388059748160500500808035015060050GLV c/ocompleted21-Jun-03483225-Jan-0321629-Jan-032621118421-Jan-0353

0BC-6L30-Jan-03221054.5454545455222120570-------GLV c/oTuning24-Jun-031326030-Jan-0327629-Jan-0327118422-Jan-03209262

0BM-22-Feb-0334916255722005604002005025020055040GLV c/owater cut increase20-Apr-038602-Feb-032765-Mar-037603221625-Jan-03262

0FG-3L2-Feb-03Dead-----500808040018055080GLV c/o100% WC02-Feb-032768-Mar-0378721629-Jan-039271

13LLA-3S11-Feb-03Dead-----30010065400200550100GLV c/ocompleted7-Jun-0317817811-Feb-034549-Mar-0310396027630-Jan-03271

14EB-4S13-Feb-03Dead-----2501504020016050030GLV c/ocompleted9-Jun-0314814813-Feb-0360211-Mar-03114017845411-Feb-03271

15BF-4S21-Feb-031899350310150590-------GLV c/oDROP10-Jun-0349021-Feb-0360213-Mar-03118114860213-Feb-03271

16BK-3S24-Feb-03231534.78260869574813542080503523012550030GLV c/ocompleted16-May-03594424-Feb-0364616-Mar-0312794464624-Feb-03271

0EZA-3S10-Mar-03Dead-----45911375376190610113GLV c/oGains frm LS 50 bopd11-Mar-0311311310-Mar-0375916-Mar-0312796465-Mar-03489760

0EQC-4L19-Mar-0370513011317065020015030150170650100GLV c/ocompleted5-Apr-0356519-Mar-0376418-Mar-0313616468-Mar-0327787

0BF-1L20-Mar-031951902303003803202902300200600100GLV c/oHigh W/C 98 %11-Jun-0354020-Mar-0376431-Mar-0317176469-Mar-032521039

0LLD-514-Apr-03Dead70030060350150600300GLV c/oCompleted27-Jun-03333314-Apr-0379710-Apr-03175811375910-Mar-031039

0BG - 8L16-Apr-0349295802241455109001508030015055060GLV c/oAwaiting on TestEstimated303016-Apr-0382710-Apr-03175875911-Mar-031011140

0BG - 8S17-Apr-0330512160211150510100040060400150550279GLV c/oAwaiting on TestEstimated14014017-Apr-0396712-Apr-03175875913-Mar-03411181

0EZE-4S17-Apr-03Dead_____300707525018060070GLV c/oAwaiting on TestEstimated353517-Apr-03100214-Apr-03176275916-Mar-03981279

0LA - 9L17-Apr-03Dead_____40020050100150650200GLV c/oCompleted2-May-0311511517-Apr-03111718-Apr-03176275918-Mar-03821361

0EQB-2L24-Apr-03Dead_____50010075200150600100GLV c/oAwaiting on TestEstimated505024-Apr-03116719-Apr-031833576419-Mar-031361

0EB-6S11-May-03Dead62020070210120550200GLV c/oDROP29-Jun-0314014011-May-03130720-Apr-03193376431-Mar-033561717

0EB-112-May-03486255485921506406003005030013058050GLV c/ocompleted9-Jun-03157012-May-03130723-Apr-03203876410-Apr-03411758

0KLB-315-May-03Dead30015050100180580150GLV c/ocompleted17-Jun-03171715-May-03132429-apr--03203876414-Apr-0341762

0EQA-918-May-035864961541514060080070015400140580100GLV c/ocompleted5-Jun-0362813218-May-03145618-May-0321323379714-Apr-031762

0BK-6S21-May-032872890384220600380689035018060040GLV c/ocompleted10-Jun-03431221-May-0314684-May-0330183082716-Apr-031762

0KLA-1431-May-03207706030018060065020060300180600130GLV c/ocompleted29-Jun-03952531-May-031493290111717-Apr-031762

0FFB-2S6-Jun-03Shut-in-----400401030013060040GLV c/oAwaiting on TestEstimated20206-Jun-031513111719-Apr-03711833

0FFB-2L6-Jun-03Shut-in_____100020080350160600200GLV c/oAwaiting on Test17-Jun-03172306-Jun-031543111720-Apr-031001933

0EB-510-Jun-03190140222571806206003504030018060075GLV c/ocompleted16-Jun-031905010-Jun-031593111723-Apr-031052038

0KLB - 1011-Jun-0348785309180500100015085400180600140GLV c/oAwaiting on Test27-Jun-03646411-Jun-03165750116724-Apr-032038

0LB-5L29-Jun-03Shut-in_____60025055300180610250GLV c/oAwaiting on TestEstimated12512529-Jun-03178211674-May-038862924

0EC-6ST29-Jun-03688396433691406007504304330014055030GLV c/oAwaiting on TestEstimated151529-Jun-031797140130711-May-032924

Total2742Total Oil Gain1,79730-Jun-03179730-Jun-03301817132415-May-032924

132145618-May-03943018

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd12146821-May-033018

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHP25149331-May-033018

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi5015436-Jun-033018

0BB-1S15-Jan-031921990.1041666667481805005001008030015055080TuningCHP tuning /monitoring12-Jun-03725315-Jan-035350159310-Jun-033018

0EZC-522-Jan-03694140014065040024040200140600120TuningCHP tuning /monitoring4-Mar-0325020922-Jan-0326264165711-Jun-033018

0LB-129-Jan-031674175.44910179640145560-------TuningDROP2-Jun-0328029-Jan-03262140179729-Jun-033018

0UB-3S29-Jan-032438580200600-------TuningCHP tuning / monitoring15-Jun-0312929-Jan-032710.0179730-Jun-030.03018

0EC-2ST5-Mar-0376869110551140580-----520-TuningCHP tuning24-Jun-0311804895-Mar-03760

0EF-4L8-Mar-031441490-190650-----640-TuningCHP tuning16-Jun-0341278-Mar-03787

0EF-59-Mar-031224110110-130650-----590-TuningCHP tuning6-Jun-0313532529-Mar-031039

0EC-4L11-Mar-037057050704160400108086420_130400159Tuningcompleted17-Jun-0380610111-Mar-031140

0EJ-3S13-Mar-034531347052214063067220220_14060068TuningCompleted15-Jun-031754113-Mar-031181

0EQB-3L16-Mar-03106733137318048028818735_160400114TuningCompleted5-May-031719816-Mar-031279

0EQB-3S16-Mar-031183038013045024580_120400_TuningUnder Evaluations16-Mar-034016-Mar-031279

0EZE-518-Mar-0399514871140350Tuningcompleted18-Mar-031338218-Mar-031361

0LB-4STL31-Mar-032644084.8484848485_240540-------TuningCompleted2-Jun-0339635631-Mar-031717

0EF - 2L10-Apr-033362492755240630622629010014559038TuningCompleted14-Jun-03654110-Apr-031758

0MBA-2S10-Apr-0327910463_150560____140480130TuningCompleted6-Jun-03103010-Apr-031758

0MBA-3S12-Apr-034704690_140600____14556059TuningCompleted1-Jun-0342012-Apr-031758

0MB-2S14-Apr-033989780_140580____130540109TuningCompleted15-Jun-03101414-Apr-031762

0MBA-1S18-Apr-032147963_110600____110550113TuningCompleted6-Jun-0375018-Apr-031762

0BB - 3S19-Apr-032576375241005108461338480314057098TuningCompleted14-Jun-031347119-Apr-031833

0LLD - 820-Apr-03Dead0____90455010018065045TuningCompleted14-May-0310010020-Apr-031933

0UB-4L23-Apr-0328166761411405204171316912013054065TuningCompleted21-Jun-0317110523-Apr-032038

0LB-4STS-------TuningShut in due to sand prob.029-apr--032038

0ED-4L18-May-031525265NR17058043014565-200470-Tuning5-Jun-031469418-May-032132

0BE - 54-May-03341322513991906007016655661160660340TuningTuning26-Jun-0312088864-May-033018

Total1538Total Oil Gain3,01830-Jun-033018

Tuning Results VS Gas Lift Change Out Results up to 2nd Qtr 03

2nd quarter

GAS LIFT OPTIMIZATION YEAR TO DATE

PERIODE

JANUARY - JUNE, 2003

SUMMARY WELL REVIEWED

* Total well potential to be GLVC:87wells

* Already optimum/no potential:18wells

* New well/spacing mandrel:5wells

* Tunning:44wells

* Need FGS and SBHP survey:36wells

Total Well Reviewed:190wells

COMPLETED GLVC JOB

* Completed by Wireline31wells

* Completed by Seapup0wells

OIL GAIN PRODUCTION

NoWellCompleted DateWell Work TypeJob DescriptionStatus before Well WorkEst. Gain, bopdPre-test, bopdPost-test, bopdTest DateGain, bopd

1EQA-1S4-Jan-03W/LGLVCDead32017316-Jun-03173

2BB-1S15-Jan-03TuningGL80197212-Jun-0353

3EZA-4L21-Jan-03W/LGLVCDead100116-Mar-0311

4EZC-522-Jan-03TuningGL120412504-Mar-03209

5BB-1L25-Jan-03W/LGLVCGL50164821-Jun-0332

6LB-129-Jan-03TuningGL41282-Jun-03

7UB-3S29-Jan-03TuningGL31215-Jun-039

8BC-6L30-Jan-03W/LGLVCGL1013224-Jun-0360

9BM-22-Feb-03W/LGLVCGL401628620-Apr-03

10FG-3L2-Feb-03W/LGLVCDead80

11LLA-3S11-Feb-03W/LGLVCDead1001787-Jun-03178

12EB-4S13-Feb-03W/LGLVCDead301489-Jun-03148

13BF-4S21-Feb-03W/LGLVCGL934910-Jun-03

14BK-3S24-Feb-03W/LGLVCGL30155916-May-0344

15EC-2ST5-Mar-03TuningGL691118024-Jun-03489

16EF-4L8-Mar-03TuningGL144116-Jun-0327

17EF-59-Mar-03TuningGL110113536-Jun-03252

18EZA-3S10-Mar-03W/LGLVCDead11311311-Mar-03113

19EC-4L11-Mar-03TuningGL15970580617-Jun-03101

20EJ-3S13-Mar-03TuningGL6813417515-Jun-0341

21EQB-3L16-Mar-03TuningGL114731715-May-0398

22EQB-3S16-Mar-03TuningGL8416-Mar-03

23EZE-518-Mar-03TuningGL5113318-Mar-0382

24EQC-4L19-Mar-03W/LGLVCGL10051565-Apr-035

25BF-1L20-Mar-03W/LGLVCGL1001905411-Jun-03

260EF-5

27LB-4STL31-Mar-03TuningGL403962-Jun-03356

27EF-2L10-Apr-03TuningGL38246514-Jun-0341

28MBA-2S10-Apr-03TuningGL1301041036-Jun-03

29MBA-3S12-Apr-03TuningGL5946421-Jun-03

30MB-2S14-Apr-03TuningGL1099710115-Jun-034

31LLD-514-Apr-03W/LGLVCDead3003327-Jun-0333

32

33BG-8L16-Apr-03W/LGLVCGL6030Estimated30

34EZE-4S17-Apr-03W/LGLVCDead7035Estimated35

35LA-9L17-Apr-03W/LGLVCDead2001152-May-03115

36BG-8S17-Apr-03W/LGLVCGL279140Estimated140

37MBA-1S18-Apr-03TuningGL11379756-Jun-03

38BB-3S19-Apr-03TuningGL986313414-Jun-0371

39LLD-820-Apr-03TuningDead4510014-May-03100

40UB-4L23-Apr-03TuningGL656617121-Jun-03105

41EQB-2L24-Apr-03W/LGLVCDead10050Estimated50

42BE-5L4-May-03TuningGL333322120826-Jun-03886

43EB-6S11-May-03W/LGLVCDead20014029-Jun-03140

44EB-112-May-03W/LGLVCGL452551579-Jun-03

45KLB-315-May-03W/LGLVCDead1501717-Jun-0317

46EQA-918-May-03W/LGLVCGL2044966285-Jun-03132

47ED-4L18-May-03TuningGL93521465-Jun-0394

48BK-6S21-May-03W/LGLVCGL40284310-Jun-0312

49KLA-1431-May-03W/LGLVCGL130709529-Jun-0325

50FFB-2S6-Jun-03W/LGLVCDead40-20Estimated20

51KLB - 1011-Jun-03W/LGLVCGL14076427-Jun-0364

52EB-510-Jun-03W/LGLVCGL7514019016-Jun-0350

53FFB-2L6-Jun-03W/LGLVCDead200_17217-Jun-0330

54LB-5L29-Jun-03W/LGLVCDead250_125Estimated125

55EC-6ST29-Jun-03W/LGLVCGL3039615Estimated15

Note:5200570399424815

Tested well85.5%

Untested8 well

Potential gain5200

Oil gain tested4400

Oil gain potential415 Bopd (untested yet)

2nd quarter

Tuning Result

Oil Rate

GLVCO Result

53

262

262

271

760

787

1039

1140

1181

1279

1279

1361

1717

1758

1758

1758

1762

1762

1833

1933

2038

2038

2132

3018

3018

Tuning

Time

BOPD

Tuning Result As per June 30

GL Optimization

173

184

216

276

276

276

454

602

602

646

759

764

764

797

827

967

1002

1117

1167

1307

1307

1324

1456

1468

1493

1513

1543

1593

1657

1782

1797

1797

GLVCO

Time

BOPD

GLVCO Result as per June 30

GLVCO vs Tuning

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

GL Optimization Result

GLVCO vs Tuning2

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

Tuning vs GLVCO

Result 2003

1797

3018

Test Result After GLV Optimization

Year to Date July 01, 2003

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHPGLVCOTuning

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi

1EQA-1S4-Jan-03Dead-----50032035390150480320GLV c/ocompleted16-Jun-031731734-Jan-0317315-Jan-03531731734-Jan-030

0EZA-4L21-Jan-03------30010065250150580100GLV c/ono drawdown6-Mar-03111121-Jan-0318422-Jan-0326217315-Jan-035353

0BB-1L25-Jan-033351695.22388059748160500500808035015060050GLV c/ocompleted21-Jun-03483225-Jan-0321629-Jan-032621118421-Jan-0353

0BC-6L30-Jan-03221054.5454545455222120570-------GLV c/oTuning24-Jun-031326030-Jan-0327629-Jan-0327118422-Jan-03209262

0BM-22-Feb-0334916255722005604002005025020055040GLV c/owater cut increase20-Apr-038602-Feb-032765-Mar-037603221625-Jan-03262

0FG-3L2-Feb-03Dead-----500808040018055080GLV c/o100% WC02-Feb-032768-Mar-0378721629-Jan-039271

13LLA-3S11-Feb-03Dead-----30010065400200550100GLV c/ocompleted7-Jun-0317817811-Feb-034549-Mar-0310396027630-Jan-03271

14EB-4S13-Feb-03Dead-----2501504020016050030GLV c/ocompleted9-Jun-0314814813-Feb-0360211-Mar-03114017845411-Feb-03271

15BF-4S21-Feb-031899350310150590-------GLV c/oDROP10-Jun-0349021-Feb-0360213-Mar-03118114860213-Feb-03271

16BK-3S24-Feb-03231534.78260869574813542080503523012550030GLV c/ocompleted16-May-03594424-Feb-0364616-Mar-0312794464624-Feb-03271

0EZA-3S10-Mar-03Dead-----45911375376190610113GLV c/oGains frm LS 50 bopd11-Mar-0311311310-Mar-0375916-Mar-0312796465-Mar-03489760

0EQC-4L19-Mar-0370513011317065020015030150170650100GLV c/ocompleted5-Apr-0356519-Mar-0376418-Mar-0313616468-Mar-0327787

0BF-1L20-Mar-031951902303003803202902300200600100GLV c/oHigh W/C 98 %11-Jun-0354020-Mar-0376431-Mar-0317176469-Mar-032521039

0LLD-514-Apr-03Dead70030060350150600300GLV c/oCompleted27-Jun-03333314-Apr-0379710-Apr-03175811375910-Mar-031039

0BG - 8L16-Apr-0349295802241455109001508030015055060GLV c/oAwaiting on TestEstimated303016-Apr-0382710-Apr-03175875911-Mar-031011140

0BG - 8S17-Apr-0330512160211150510100040060400150550279GLV c/oAwaiting on TestEstimated14014017-Apr-0396712-Apr-03175875913-Mar-03411181

0EZE-4S17-Apr-03Dead_____300707525018060070GLV c/oAwaiting on TestEstimated353517-Apr-03100214-Apr-03176275916-Mar-03981279

0LA - 9L17-Apr-03Dead_____40020050100150650200GLV c/oCompleted2-May-0311511517-Apr-03111718-Apr-03176275918-Mar-03821361

0EQB-2L24-Apr-03Dead_____50010075200150600100GLV c/oAwaiting on TestEstimated505024-Apr-03116719-Apr-031833576419-Mar-031361

0EB-6S11-May-03Dead62020070210120550200GLV c/oDROP29-Jun-0314014011-May-03130720-Apr-03193376431-Mar-033561717

0EB-112-May-03486255485921506406003005030013058050GLV c/ocompleted9-Jun-03157012-May-03130723-Apr-03203876410-Apr-03411758

0KLB-315-May-03Dead30015050100180580150GLV c/ocompleted17-Jun-03171715-May-03132429-apr--03203876414-Apr-0341762

0EQA-918-May-035864961541514060080070015400140580100GLV c/ocompleted5-Jun-0362813218-May-03145618-May-0321323379714-Apr-031762

0BK-6S21-May-032872890384220600380689035018060040GLV c/ocompleted10-Jun-03431221-May-0314684-May-0330183082716-Apr-031762

0KLA-1431-May-03207706030018060065020060300180600130GLV c/ocompleted29-Jun-03952531-May-031493290111717-Apr-031762

0FFB-2S6-Jun-03Shut-in-----400401030013060040GLV c/oAwaiting on TestEstimated20206-Jun-031513111719-Apr-03711833

0FFB-2L6-Jun-03Shut-in_____100020080350160600200GLV c/oAwaiting on Test17-Jun-03172306-Jun-031543111720-Apr-031001933

0EB-510-Jun-03190140222571806206003504030018060075GLV c/ocompleted16-Jun-031905010-Jun-031593111723-Apr-031052038

0KLB - 1011-Jun-0348785309180500100015085400180600140GLV c/oAwaiting on Test27-Jun-03646411-Jun-03165750116724-Apr-032038

0LB-5L29-Jun-03Shut-in_____60025055300180610250GLV c/oAwaiting on TestEstimated12512529-Jun-03178211674-May-038862924

0EC-6ST29-Jun-03688396433691406007504304330014055030GLV c/oAwaiting on TestEstimated151529-Jun-031797140130711-May-032924

Total2742Total Oil Gain1,79730-Jun-03179730-Jun-03301817132415-May-032924

132145618-May-03943018

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd12146821-May-033018

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHP25149331-May-033018

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi5015436-Jun-033018

0BB-1S15-Jan-031921990.1041666667481805005001008030015055080TuningCHP tuning /monitoring12-Jun-03725315-Jan-035350159310-Jun-033018

0EZC-522-Jan-03694140014065040024040200140600120TuningCHP tuning /monitoring4-Mar-0325020922-Jan-0326264165711-Jun-033018

0LB-129-Jan-031674175.44910179640145560-------TuningDROP2-Jun-0328029-Jan-03262140179729-Jun-033018

0UB-3S29-Jan-032438580200600-------TuningCHP tuning / monitoring15-Jun-0312929-Jan-032710.0179730-Jun-030.03018

0EC-2ST5-Mar-0376869110551140580-----520-TuningCHP tuning24-Jun-0311804895-Mar-03760

0EF-4L8-Mar-031441490-190650-----640-TuningCHP tuning16-Jun-0341278-Mar-03787

0EF-59-Mar-031224110110-130650-----590-TuningCHP tuning6-Jun-0313532529-Mar-031039

0EC-4L11-Mar-037057050704160400108086420_130400159Tuningcompleted17-Jun-0380610111-Mar-031140

0EJ-3S13-Mar-034531347052214063067220220_14060068TuningCompleted15-Jun-031754113-Mar-031181

0EQB-3L16-Mar-03106733137318048028818735_160400114TuningCompleted5-May-031719816-Mar-031279

0EQB-3S16-Mar-031183038013045024580_120400_TuningUnder Evaluations16-Mar-034016-Mar-031279

0EZE-518-Mar-0399514871140350Tuningcompleted18-Mar-031338218-Mar-031361

0LB-4STL31-Mar-032644084.8484848485_240540-------TuningCompleted2-Jun-0339635631-Mar-031717

0EF - 2L10-Apr-033362492755240630622629010014559038TuningCompleted14-Jun-03654110-Apr-031758

0MBA-2S10-Apr-0327910463_150560____140480130TuningCompleted6-Jun-03103010-Apr-031758

0MBA-3S12-Apr-034704690_140600____14556059TuningCompleted1-Jun-0342012-Apr-031758

0MB-2S14-Apr-033989780_140580____130540109TuningCompleted15-Jun-03101414-Apr-031762

0MBA-1S18-Apr-032147963_110600____110550113TuningCompleted6-Jun-0375018-Apr-031762

0BB - 3S19-Apr-032576375241005108461338480314057098TuningCompleted14-Jun-031347119-Apr-031833

0LLD - 820-Apr-03Dead0____90455010018065045TuningCompleted14-May-0310010020-Apr-031933

0UB-4L23-Apr-0328166761411405204171316912013054065TuningCompleted21-Jun-0317110523-Apr-032038

0LB-4STS-------TuningShut in due to sand prob.029-apr--032038

0ED-4L18-May-031525265NR17058043014565-200470-Tuning5-Jun-031469418-May-032132

0BE - 54-May-03341322513991906007016655661160660340TuningTuning26-Jun-0312088864-May-033018

Total1538Total Oil Gain3,01830-Jun-033018

Well Work PercentageTotal Wells analyzes : 190 wellsCompleted by Wire line : 31 wells: 87 Wells potential: 18 Wells had optimum: 5 New wells: 44 Wells CHP Tuning: 36 Wells Needs FGS & SBHP surveyTOTAL GAS LIFT JOB YTD UP TO 2nd Qtr 03

Chart3

87

18

5

44

36

2nd quarter

GAS LIFT OPTIMIZATION YEAR TO DATE

PERIODE

JANUARY - JUNE, 2003

SUMMARY WELL REVIEWED

* Total well potential to be GLVC:87wells

* Already optimum/no potential:18wells

* New well/spacing mandrel:5wells

* Tunning:44wells

* Need FGS and SBHP survey:36wells

Total Well Reviewed:190wells

COMPLETED GLVC JOB

* Completed by Wireline31wells

* Completed by Seapup0wells

OIL GAIN PRODUCTION

NoWellCompleted DateWell Work TypeJob DescriptionStatus before Well WorkEst. Gain, bopdPre-test, bopdPost-test, bopdTest DateGain, bopd

1EQA-1S4-Jan-03W/LGLVCDead32017316-Jun-03173

2BB-1S15-Jan-03TuningGL80197212-Jun-0353

3EZA-4L21-Jan-03W/LGLVCDead100116-Mar-0311

4EZC-522-Jan-03TuningGL120412504-Mar-03209

5BB-1L25-Jan-03W/LGLVCGL50164821-Jun-0332

6LB-129-Jan-03TuningGL41282-Jun-03

7UB-3S29-Jan-03TuningGL31215-Jun-039

8BC-6L30-Jan-03W/LGLVCGL1013224-Jun-0360

9BM-22-Feb-03W/LGLVCGL401628620-Apr-03

10FG-3L2-Feb-03W/LGLVCDead80

11LLA-3S11-Feb-03W/LGLVCDead1001787-Jun-03178

12EB-4S13-Feb-03W/LGLVCDead301489-Jun-03148

13BF-4S21-Feb-03W/LGLVCGL934910-Jun-03

14BK-3S24-Feb-03W/LGLVCGL30155916-May-0344

15EC-2ST5-Mar-03TuningGL691118024-Jun-03489

16EF-4L8-Mar-03TuningGL144116-Jun-0327

17EF-59-Mar-03TuningGL110113536-Jun-03252

18EZA-3S10-Mar-03W/LGLVCDead11311311-Mar-03113

19EC-4L11-Mar-03TuningGL15970580617-Jun-03101

20EJ-3S13-Mar-03TuningGL6813417515-Jun-0341

21EQB-3L16-Mar-03TuningGL114731715-May-0398

22EQB-3S16-Mar-03TuningGL8416-Mar-03

23EZE-518-Mar-03TuningGL5113318-Mar-0382

24EQC-4L19-Mar-03W/LGLVCGL10051565-Apr-035

25BF-1L20-Mar-03W/LGLVCGL1001905411-Jun-03

260EF-5

27LB-4STL31-Mar-03TuningGL403962-Jun-03356

27EF-2L10-Apr-03TuningGL38246514-Jun-0341

28MBA-2S10-Apr-03TuningGL1301041036-Jun-03

29MBA-3S12-Apr-03TuningGL5946421-Jun-03

30MB-2S14-Apr-03TuningGL1099710115-Jun-034

31LLD-514-Apr-03W/LGLVCDead3003327-Jun-0333

32

33BG-8L16-Apr-03W/LGLVCGL6030Estimated30

34EZE-4S17-Apr-03W/LGLVCDead7035Estimated35

35LA-9L17-Apr-03W/LGLVCDead2001152-May-03115

36BG-8S17-Apr-03W/LGLVCGL279140Estimated140

37MBA-1S18-Apr-03TuningGL11379756-Jun-03

38BB-3S19-Apr-03TuningGL986313414-Jun-0371

39LLD-820-Apr-03TuningDead4510014-May-03100

40UB-4L23-Apr-03TuningGL656617121-Jun-03105

41EQB-2L24-Apr-03W/LGLVCDead10050Estimated50

42BE-5L4-May-03TuningGL333322120826-Jun-03886

43EB-6S11-May-03W/LGLVCDead20014029-Jun-03140

44EB-112-May-03W/LGLVCGL452551579-Jun-03

45KLB-315-May-03W/LGLVCDead1501717-Jun-0317

46EQA-918-May-03W/LGLVCGL2044966285-Jun-03132

47ED-4L18-May-03TuningGL93521465-Jun-0394

48BK-6S21-May-03W/LGLVCGL40284310-Jun-0312

49KLA-1431-May-03W/LGLVCGL130709529-Jun-0325

50FFB-2S6-Jun-03W/LGLVCDead40-20Estimated20

51KLB - 1011-Jun-03W/LGLVCGL14076427-Jun-0364

52EB-510-Jun-03W/LGLVCGL7514019016-Jun-0350

53FFB-2L6-Jun-03W/LGLVCDead200_17217-Jun-0330

54LB-5L29-Jun-03W/LGLVCDead250_125Estimated125

55EC-6ST29-Jun-03W/LGLVCGL3039615Estimated15

Note:5200570399424815

Tested well85.5%

Untested8 well

Potential gain5200

Oil gain tested4400

Oil gain potential415 Bopd (untested yet)

2nd quarter

Tuning Result

Oil Rate

GLVCO Result

53

262

262

271

760

787

1039

1140

1181

1279

1279

1361

1717

1758

1758

1758

1762

1762

1833

1933

2038

2038

2132

3018

3018

Tuning

Time

BOPD

Tuning Result As per June 30

GL Optimization

173

184

216

276

276

276

454

602

602

646

759

764

764

797

827

967

1002

1117

1167

1307

1307

1324

1456

1468

1493

1513

1543

1593

1657

1782

1797

1797

GLVCO

Time

BOPD

GLVCO Result as per June 30

GLVCO vs Tuning

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

GL Optimization Result

GLVCO vs Tuning2

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

Tuning vs GLVCO

Result 2003

1797

3018

Test Result After GLV Optimization

Year to Date July 01, 2003

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHPGLVCOTuning

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi

1EQA-1S4-Jan-03Dead-----50032035390150480320GLV c/ocompleted16-Jun-031731734-Jan-0317315-Jan-03531731734-Jan-030

0EZA-4L21-Jan-03------30010065250150580100GLV c/ono drawdown6-Mar-03111121-Jan-0318422-Jan-0326217315-Jan-035353

0BB-1L25-Jan-033351695.22388059748160500500808035015060050GLV c/ocompleted21-Jun-03483225-Jan-0321629-Jan-032621118421-Jan-0353

0BC-6L30-Jan-03221054.5454545455222120570-------GLV c/oTuning24-Jun-031326030-Jan-0327629-Jan-0327118422-Jan-03209262

0BM-22-Feb-0334916255722005604002005025020055040GLV c/owater cut increase20-Apr-038602-Feb-032765-Mar-037603221625-Jan-03262

0FG-3L2-Feb-03Dead-----500808040018055080GLV c/o100% WC02-Feb-032768-Mar-0378721629-Jan-039271

13LLA-3S11-Feb-03Dead-----30010065400200550100GLV c/ocompleted7-Jun-0317817811-Feb-034549-Mar-0310396027630-Jan-03271

14EB-4S13-Feb-03Dead-----2501504020016050030GLV c/ocompleted9-Jun-0314814813-Feb-0360211-Mar-03114017845411-Feb-03271

15BF-4S21-Feb-031899350310150590-------GLV c/oDROP10-Jun-0349021-Feb-0360213-Mar-03118114860213-Feb-03271

16BK-3S24-Feb-03231534.78260869574813542080503523012550030GLV c/ocompleted16-May-03594424-Feb-0364616-Mar-0312794464624-Feb-03271

0EZA-3S10-Mar-03Dead-----45911375376190610113GLV c/oGains frm LS 50 bopd11-Mar-0311311310-Mar-0375916-Mar-0312796465-Mar-03489760

0EQC-4L19-Mar-0370513011317065020015030150170650100GLV c/ocompleted5-Apr-0356519-Mar-0376418-Mar-0313616468-Mar-0327787

0BF-1L20-Mar-031951902303003803202902300200600100GLV c/oHigh W/C 98 %11-Jun-0354020-Mar-0376431-Mar-0317176469-Mar-032521039

0LLD-514-Apr-03Dead70030060350150600300GLV c/oCompleted27-Jun-03333314-Apr-0379710-Apr-03175811375910-Mar-031039

0BG - 8L16-Apr-0349295802241455109001508030015055060GLV c/oAwaiting on TestEstimated303016-Apr-0382710-Apr-03175875911-Mar-031011140

0BG - 8S17-Apr-0330512160211150510100040060400150550279GLV c/oAwaiting on TestEstimated14014017-Apr-0396712-Apr-03175875913-Mar-03411181

0EZE-4S17-Apr-03Dead_____300707525018060070GLV c/oAwaiting on TestEstimated353517-Apr-03100214-Apr-03176275916-Mar-03981279

0LA - 9L17-Apr-03Dead_____40020050100150650200GLV c/oCompleted2-May-0311511517-Apr-03111718-Apr-03176275918-Mar-03821361

0EQB-2L24-Apr-03Dead_____50010075200150600100GLV c/oAwaiting on TestEstimated505024-Apr-03116719-Apr-031833576419-Mar-031361

0EB-6S11-May-03Dead62020070210120550200GLV c/oDROP29-Jun-0314014011-May-03130720-Apr-03193376431-Mar-033561717

0EB-112-May-03486255485921506406003005030013058050GLV c/ocompleted9-Jun-03157012-May-03130723-Apr-03203876410-Apr-03411758

0KLB-315-May-03Dead30015050100180580150GLV c/ocompleted17-Jun-03171715-May-03132429-apr--03203876414-Apr-0341762

0EQA-918-May-035864961541514060080070015400140580100GLV c/ocompleted5-Jun-0362813218-May-03145618-May-0321323379714-Apr-031762

0BK-6S21-May-032872890384220600380689035018060040GLV c/ocompleted10-Jun-03431221-May-0314684-May-0330183082716-Apr-031762

0KLA-1431-May-03207706030018060065020060300180600130GLV c/ocompleted29-Jun-03952531-May-031493290111717-Apr-031762

0FFB-2S6-Jun-03Shut-in-----400401030013060040GLV c/oAwaiting on TestEstimated20206-Jun-031513111719-Apr-03711833

0FFB-2L6-Jun-03Shut-in_____100020080350160600200GLV c/oAwaiting on Test17-Jun-03172306-Jun-031543111720-Apr-031001933

0EB-510-Jun-03190140222571806206003504030018060075GLV c/ocompleted16-Jun-031905010-Jun-031593111723-Apr-031052038

0KLB - 1011-Jun-0348785309180500100015085400180600140GLV c/oAwaiting on Test27-Jun-03646411-Jun-03165750116724-Apr-032038

0LB-5L29-Jun-03Shut-in_____60025055300180610250GLV c/oAwaiting on TestEstimated12512529-Jun-03178211674-May-038862924

0EC-6ST29-Jun-03688396433691406007504304330014055030GLV c/oAwaiting on TestEstimated151529-Jun-031797140130711-May-032924

Total2742Total Oil Gain1,79730-Jun-03179730-Jun-03301817132415-May-032924

132145618-May-03943018

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd12146821-May-033018

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHP25149331-May-033018

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi5015436-Jun-033018

0BB-1S15-Jan-031921990.1041666667481805005001008030015055080TuningCHP tuning /monitoring12-Jun-03725315-Jan-035350159310-Jun-033018

0EZC-522-Jan-03694140014065040024040200140600120TuningCHP tuning /monitoring4-Mar-0325020922-Jan-0326264165711-Jun-033018

0LB-129-Jan-031674175.44910179640145560-------TuningDROP2-Jun-0328029-Jan-03262140179729-Jun-033018

0UB-3S29-Jan-032438580200600-------TuningCHP tuning / monitoring15-Jun-0312929-Jan-032710.0179730-Jun-030.03018

0EC-2ST5-Mar-0376869110551140580-----520-TuningCHP tuning24-Jun-0311804895-Mar-03760

0EF-4L8-Mar-031441490-190650-----640-TuningCHP tuning16-Jun-0341278-Mar-03787

0EF-59-Mar-031224110110-130650-----590-TuningCHP tuning6-Jun-0313532529-Mar-031039

0EC-4L11-Mar-037057050704160400108086420_130400159Tuningcompleted17-Jun-0380610111-Mar-031140

0EJ-3S13-Mar-034531347052214063067220220_14060068TuningCompleted15-Jun-031754113-Mar-031181

0EQB-3L16-Mar-03106733137318048028818735_160400114TuningCompleted5-May-031719816-Mar-031279

0EQB-3S16-Mar-031183038013045024580_120400_TuningUnder Evaluations16-Mar-034016-Mar-031279

0EZE-518-Mar-0399514871140350Tuningcompleted18-Mar-031338218-Mar-031361

0LB-4STL31-Mar-032644084.8484848485_240540-------TuningCompleted2-Jun-0339635631-Mar-031717

0EF - 2L10-Apr-033362492755240630622629010014559038TuningCompleted14-Jun-03654110-Apr-031758

0MBA-2S10-Apr-0327910463_150560____140480130TuningCompleted6-Jun-03103010-Apr-031758

0MBA-3S12-Apr-034704690_140600____14556059TuningCompleted1-Jun-0342012-Apr-031758

0MB-2S14-Apr-033989780_140580____130540109TuningCompleted15-Jun-03101414-Apr-031762

0MBA-1S18-Apr-032147963_110600____110550113TuningCompleted6-Jun-0375018-Apr-031762

0BB - 3S19-Apr-032576375241005108461338480314057098TuningCompleted14-Jun-031347119-Apr-031833

0LLD - 820-Apr-03Dead0____90455010018065045TuningCompleted14-May-0310010020-Apr-031933

0UB-4L23-Apr-0328166761411405204171316912013054065TuningCompleted21-Jun-0317110523-Apr-032038

0LB-4STS-------TuningShut in due to sand prob.029-apr--032038

0ED-4L18-May-031525265NR17058043014565-200470-Tuning5-Jun-031469418-May-032132

0BE - 54-May-03341322513991906007016655661160660340TuningTuning26-Jun-0312088864-May-033018

Total1538Total Oil Gain3,01830-Jun-033018

2nd quarter

GAS LIFT OPTIMIZATION YEAR TO DATE

PERIODE

JANUARY - JUNE, 2003

SUMMARY WELL REVIEWED

* Total well potential to be GLVC:87wells

* Already optimum/no potential:18wells

* New well/spacing mandrel:5wells

* Tunning:44wells

* Need FGS and SBHP survey:36wells

Total Well Reviewed:190wells

COMPLETED GLVC JOB

* Completed by Wireline31wells

* Completed by Seapup0wells

OIL GAIN PRODUCTION

NoWellCompleted DateWell Work TypeJob DescriptionStatus before Well WorkEst. Gain, bopdPre-test, bopdPost-test, bopdTest DateGain, bopd

1EQA-1S4-Jan-03W/LGLVCDead32017316-Jun-03173

2BB-1S15-Jan-03TuningGL80197212-Jun-0353

3EZA-4L21-Jan-03W/LGLVCDead100116-Mar-0311

4EZC-522-Jan-03TuningGL120412504-Mar-03209

5BB-1L25-Jan-03W/LGLVCGL50164821-Jun-0332

6LB-129-Jan-03TuningGL41282-Jun-03

7UB-3S29-Jan-03TuningGL31215-Jun-039

8BC-6L30-Jan-03W/LGLVCGL1013224-Jun-0360

9BM-22-Feb-03W/LGLVCGL401628620-Apr-03

10FG-3L2-Feb-03W/LGLVCDead80

11LLA-3S11-Feb-03W/LGLVCDead1001787-Jun-03178

12EB-4S13-Feb-03W/LGLVCDead301489-Jun-03148

13BF-4S21-Feb-03W/LGLVCGL934910-Jun-03

14BK-3S24-Feb-03W/LGLVCGL30155916-May-0344

15EC-2ST5-Mar-03TuningGL691118024-Jun-03489

16EF-4L8-Mar-03TuningGL144116-Jun-0327

17EF-59-Mar-03TuningGL110113536-Jun-03252

18EZA-3S10-Mar-03W/LGLVCDead11311311-Mar-03113

19EC-4L11-Mar-03TuningGL15970580617-Jun-03101

20EJ-3S13-Mar-03TuningGL6813417515-Jun-0341

21EQB-3L16-Mar-03TuningGL114731715-May-0398

22EQB-3S16-Mar-03TuningGL8416-Mar-03

23EZE-518-Mar-03TuningGL5113318-Mar-0382

24EQC-4L19-Mar-03W/LGLVCGL10051565-Apr-035

25BF-1L20-Mar-03W/LGLVCGL1001905411-Jun-03

260EF-5

27LB-4STL31-Mar-03TuningGL403962-Jun-03356

27EF-2L10-Apr-03TuningGL38246514-Jun-0341

28MBA-2S10-Apr-03TuningGL1301041036-Jun-03

29MBA-3S12-Apr-03TuningGL5946421-Jun-03

30MB-2S14-Apr-03TuningGL1099710115-Jun-034

31LLD-514-Apr-03W/LGLVCDead3003327-Jun-0333

32

33BG-8L16-Apr-03W/LGLVCGL6030Estimated30

34EZE-4S17-Apr-03W/LGLVCDead7035Estimated35

35LA-9L17-Apr-03W/LGLVCDead2001152-May-03115

36BG-8S17-Apr-03W/LGLVCGL279140Estimated140

37MBA-1S18-Apr-03TuningGL11379756-Jun-03

38BB-3S19-Apr-03TuningGL986313414-Jun-0371

39LLD-820-Apr-03TuningDead4510014-May-03100

40UB-4L23-Apr-03TuningGL656617121-Jun-03105

41EQB-2L24-Apr-03W/LGLVCDead10050Estimated50

42BE-5L4-May-03TuningGL333322120826-Jun-03886

43EB-6S11-May-03W/LGLVCDead20014029-Jun-03140

44EB-112-May-03W/LGLVCGL452551579-Jun-03

45KLB-315-May-03W/LGLVCDead1501717-Jun-0317

46EQA-918-May-03W/LGLVCGL2044966285-Jun-03132

47ED-4L18-May-03TuningGL93521465-Jun-0394

48BK-6S21-May-03W/LGLVCGL40284310-Jun-0312

49KLA-1431-May-03W/LGLVCGL130709529-Jun-0325

50FFB-2S6-Jun-03W/LGLVCDead40-20Estimated20

51KLB - 1011-Jun-03W/LGLVCGL14076427-Jun-0364

52EB-510-Jun-03W/LGLVCGL7514019016-Jun-0350

53FFB-2L6-Jun-03W/LGLVCDead200_17217-Jun-0330

54LB-5L29-Jun-03W/LGLVCDead250_125Estimated125

55EC-6ST29-Jun-03W/LGLVCGL3039615Estimated15

Note:5200570399424815

Tested well85.5%

Untested8 well

Potential gain5200

Oil gain tested4400

Oil gain potential415 Bopd (untested yet)

2nd quarter

Tuning Result

Oil Rate

GLVCO Result

53

262

262

271

760

787

1039

1140

1181

1279

1279

1361

1717

1758

1758

1758

1762

1762

1833

1933

2038

2038

2132

3018

3018

Tuning

Time

BOPD

Tuning Result As per June 30

GL Optimization

173

184

216

276

276

276

454

602

602

646

759

764

764

797

827

967

1002

1117

1167

1307

1307

1324

1456

1468

1493

1513

1543

1593

1657

1782

1797

1797

GLVCO

Time

BOPD

GLVCO Result as per June 30

GLVCO vs Tuning

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

GL Optimization Result

GLVCO vs Tuning2

1730

17353

18453

184262

216262

216271

276271

454271

602271

646271

646760

646787

6461039

7591039

7591140

7591181

7591279

7591361

7641361

7641717

7641758

7641762

7971762

8271762

11171762

11171833

11171933

11172038

11672038

11672924

13072924

13242924

14563018

14683018

14933018

15433018

15933018

16573018

17973018

17973018

GLVCO

Tuning

Time

BOPD

Tuning vs GLVCO

Result 2003

1797

3018

Test Result After GLV Optimization

Year to Date July 01, 2003

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHPGLVCOTuning

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi

1EQA-1S4-Jan-03Dead-----50032035390150480320GLV c/ocompleted16-Jun-031731734-Jan-0317315-Jan-03531731734-Jan-030

0EZA-4L21-Jan-03------30010065250150580100GLV c/ono drawdown6-Mar-03111121-Jan-0318422-Jan-0326217315-Jan-035353

0BB-1L25-Jan-033351695.22388059748160500500808035015060050GLV c/ocompleted21-Jun-03483225-Jan-0321629-Jan-032621118421-Jan-0353

0BC-6L30-Jan-03221054.5454545455222120570-------GLV c/oTuning24-Jun-031326030-Jan-0327629-Jan-0327118422-Jan-03209262

0BM-22-Feb-0334916255722005604002005025020055040GLV c/owater cut increase20-Apr-038602-Feb-032765-Mar-037603221625-Jan-03262

0FG-3L2-Feb-03Dead-----500808040018055080GLV c/o100% WC02-Feb-032768-Mar-0378721629-Jan-039271

13LLA-3S11-Feb-03Dead-----30010065400200550100GLV c/ocompleted7-Jun-0317817811-Feb-034549-Mar-0310396027630-Jan-03271

14EB-4S13-Feb-03Dead-----2501504020016050030GLV c/ocompleted9-Jun-0314814813-Feb-0360211-Mar-03114017845411-Feb-03271

15BF-4S21-Feb-031899350310150590-------GLV c/oDROP10-Jun-0349021-Feb-0360213-Mar-03118114860213-Feb-03271

16BK-3S24-Feb-03231534.78260869574813542080503523012550030GLV c/ocompleted16-May-03594424-Feb-0364616-Mar-0312794464624-Feb-03271

0EZA-3S10-Mar-03Dead-----45911375376190610113GLV c/oGains frm LS 50 bopd11-Mar-0311311310-Mar-0375916-Mar-0312796465-Mar-03489760

0EQC-4L19-Mar-0370513011317065020015030150170650100GLV c/ocompleted5-Apr-0356519-Mar-0376418-Mar-0313616468-Mar-0327787

0BF-1L20-Mar-031951902303003803202902300200600100GLV c/oHigh W/C 98 %11-Jun-0354020-Mar-0376431-Mar-0317176469-Mar-032521039

0LLD-514-Apr-03Dead70030060350150600300GLV c/oCompleted27-Jun-03333314-Apr-0379710-Apr-03175811375910-Mar-031039

0BG - 8L16-Apr-0349295802241455109001508030015055060GLV c/oAwaiting on TestEstimated303016-Apr-0382710-Apr-03175875911-Mar-031011140

0BG - 8S17-Apr-0330512160211150510100040060400150550279GLV c/oAwaiting on TestEstimated14014017-Apr-0396712-Apr-03175875913-Mar-03411181

0EZE-4S17-Apr-03Dead_____300707525018060070GLV c/oAwaiting on TestEstimated353517-Apr-03100214-Apr-03176275916-Mar-03981279

0LA - 9L17-Apr-03Dead_____40020050100150650200GLV c/oCompleted2-May-0311511517-Apr-03111718-Apr-03176275918-Mar-03821361

0EQB-2L24-Apr-03Dead_____50010075200150600100GLV c/oAwaiting on TestEstimated505024-Apr-03116719-Apr-031833576419-Mar-031361

0EB-6S11-May-03Dead62020070210120550200GLV c/oDROP29-Jun-0314014011-May-03130720-Apr-03193376431-Mar-033561717

0EB-112-May-03486255485921506406003005030013058050GLV c/ocompleted9-Jun-03157012-May-03130723-Apr-03203876410-Apr-03411758

0KLB-315-May-03Dead30015050100180580150GLV c/ocompleted17-Jun-03171715-May-03132429-apr--03203876414-Apr-0341762

0EQA-918-May-035864961541514060080070015400140580100GLV c/ocompleted5-Jun-0362813218-May-03145618-May-0321323379714-Apr-031762

0BK-6S21-May-032872890384220600380689035018060040GLV c/ocompleted10-Jun-03431221-May-0314684-May-0330183082716-Apr-031762

0KLA-1431-May-03207706030018060065020060300180600130GLV c/ocompleted29-Jun-03952531-May-031493290111717-Apr-031762

0FFB-2S6-Jun-03Shut-in-----400401030013060040GLV c/oAwaiting on TestEstimated20206-Jun-031513111719-Apr-03711833

0FFB-2L6-Jun-03Shut-in_____100020080350160600200GLV c/oAwaiting on Test17-Jun-03172306-Jun-031543111720-Apr-031001933

0EB-510-Jun-03190140222571806206003504030018060075GLV c/ocompleted16-Jun-031905010-Jun-031593111723-Apr-031052038

0KLB - 1011-Jun-0348785309180500100015085400180600140GLV c/oAwaiting on Test27-Jun-03646411-Jun-03165750116724-Apr-032038

0LB-5L29-Jun-03Shut-in_____60025055300180610250GLV c/oAwaiting on TestEstimated12512529-Jun-03178211674-May-038862924

0EC-6ST29-Jun-03688396433691406007504304330014055030GLV c/oAwaiting on TestEstimated151529-Jun-031797140130711-May-032924

Total2742Total Oil Gain1,79730-Jun-03179730-Jun-03301817132415-May-032924

132145618-May-03943018

NoWellJob Completed DatePrevious ConditionPotentialGain, Oil Potential bopdJob TypeRemarksLast Test DateTest Result bopdOil Gains bopd12146821-May-033018

Fluid RateOil RateWCGas Inj.PwhCHPFluid RateOil RateWCGas Inj.PwhCHP25149331-May-033018

BlpdBopd%MscfdPsiPsiBlpdBopd%MscfdPsiPsi5015436-Jun-033018

0BB-1S15-Jan-031921990.1041666667481805005001008030015055080TuningCHP tuning /monitoring12-Jun-03725315-Jan-035350159310-Jun-033018

0EZC-522-Jan-03694140014065040024040200140600120TuningCHP tuning /monitoring4-Mar-0325020922-Jan-0326264165711-Jun-033018

0LB-129-Jan-031674175.44910179640145560-------TuningDROP2-Jun-0328029-Jan-03262140179729-Jun-033018

0UB-3S29-Jan-032438580200600-------TuningCHP tuning / monitoring15-Jun-0312929-Jan-032710.0179730-Jun-030.03018

0EC-2ST5-Mar-0376869110551140580-----520-TuningCHP tuning24-Jun-0311804895-Mar-03760

0EF-4L8-Mar-031441490-190650-----640-TuningCHP tuning16-Jun-0341278-Mar-03787

0EF-59-Mar-031224110110-130650-----590-TuningCHP tuning6-Jun-0313532529-Mar-031039

0EC-4L11-Mar-037057050704160400108086420_130400159Tuningcompleted17-Jun-0380610111-Mar-031140

0EJ-3S13-Mar-034531347052214063067220220_14060068TuningCompleted15-Jun-031754113-Mar-031181

0EQB-3L16-Mar-03106733137318048028818735_160400114TuningCompleted5-May-031719816-Mar-031279

0EQB-3S16-Mar-031183038013045024580_120400_TuningUnder Evaluations16-Mar-034016-Mar-031279

0EZE-518-Mar-0399514871140350Tuningcompleted18-Mar-031338218-Mar-031361

0LB-4STL31-Mar-032644084.8484848485_240540-------TuningCompleted2-Jun-0339635631-Mar-031717

0EF - 2L10-Apr-033362492755240630622629010014559038TuningCompleted14-Jun-03654110-Apr-031758

0MBA-2S10-Apr-0327910463_150560____140480130TuningCompleted6-Jun-03103010-Apr-031758

0MBA-3S12-Apr-034704690_140600____14556059TuningCompleted1-Jun-0342012-Apr-031758

0MB-2S14-Apr-033989780_140580____130540109TuningCompleted15-Jun-03101414-Apr-031762

0MBA-1S18-Apr-032147963_110600____110550113TuningCompleted6-Jun-0375018-Apr-031762

0BB - 3S19-Apr-032576375241005108461338480314057098TuningCompleted14-Jun-031347119-Apr-031833

0LLD - 820-Apr-03Dead0____90455010018065045TuningCompleted14-May-0310010020-Apr-031933

0UB-4L23-Apr-0328166761411405204171316912013054065TuningCompleted21-Jun-0317110523-Apr-032038

0LB-4STS-------TuningShut in due to sand prob.029-apr--032038

0ED-4L18-May-031525265NR17058043014565-200470-Tuning5-Jun-031469418-May-032132

0BE - 54-May-03341322513991906007016655661160660340TuningTuning26-Jun-0312088864-May-033018

Total1538Total Oil Gain3,01830-Jun-033018

Total Oil Gains After Gas Lift Optimization YTD Up to 2nd Qtr 03

Chart1

5703

9942

4815

Oil Rate

2nd quarter

GAS LIFT OPTIMIZATION YEAR TO DATE

PERIODE

JANUARY - JUNE, 2003

SUMMARY WELL REVIEWED

* Total well potential to be GLVC:87wells

* Already optimum/no potential:18wells

* New well/spacing mandrel:5wells

* Tunning:44wells

* Need FGS and SBHP survey:36wells

Total Well Reviewed:190wells