In K#ply He fer T<>! RH-?- \ M. I g BBS

Sun Exploration an* pr tturtion Omwany *t*.<ntkn: Mr. Mfr -.: »:«rw.rr, Prv&t Office 2n» 1501 .louston, Texa* F W l

&n*nt\mn\'.

;W*rvnct Is rnedt to your In i t i a l Man of Kxploration received 'u!y J , 1 r"'», » r l»au OCS-G *2Sr., block M<jh is Und A >a. TMs u**n 1nc1i>*i". BUfl ac t i v i t i e s prvpmted tor Wrlls A throu^ft E.

ln acccHance * i t h 30 CFf> tS< .34, r«yi„r» . cm,, r ! I , *rw >ur K l * - r aaud January 29, tlHfe plan Has bean determiner* to bf complete as nf J'tly i9, an/j 1, new otlmi r.onslov r*?<i for approval.

Your plan Ctf*t*o1 numbe* | | b*S£$Q enc! plNMfttf tec re/em*: <l 1n your commun ca t1 'i a»vi c r»- ':>>ncVnc«: concerning (M« plan.

S1ncer*?j ifcun,

J " » % Sgd.) A. OoO J ( d G i r o } f

i i . V. SoUnah Regional Sup'-rvis f

J . i «mt rV< dacM< n

»«:c: Uase f>w5>-o 625S (crs •.<-;-) (KILF am) /OPS-J-4 w/Publlc In«r>. Coy nf the plan (PUPUC &F.C0UDS ROOH) PO-1

:4JTt)lhort:gcw://H/A5 Disk 3B

rv,,

1 ,V - •

t u n Product ion Oporations Oi v is ion OPsnore Diiim••

r»

SUN tun I xploration and nroUuctioiv C#dim"'V 12121 WicKCho»t»» Cant PC Be* 1S01 Houston r x 7*23' '50 ' "'3531 :000

July 1985

Mr . 0. W. Solanas Regional Supervisor Rules and Production Minerals Management Service P. 0 . Box 7944 M e t a i r i e , Louisiana 70010

Dear Mr. Solanas:

Sun Exploration and Production Company hereby submits a Plan of Explora­t i o n for the subject lease 1n acordance wi th the provisions of 30 CFR 250.34 for your approval .

Ten cnpies of t h i s plan are enclosed, s ix proprietary and four for public Informat ion.

Re: Plan of Exploration High Island East Addit ion South Extension Block A-3S8 OCS G 62SS

Sincerely,

Conservation Manager

ABN:rpb

Enclosures

PUBLIC INFORMATION

1C6/774 - (1)

PLAN OF EXPLORATION

OCS G 6255

HIGH ISLAND EAST ADDITION SOUTH EXTENSION BLOCK A-358

SUN EXPLORATION AND PRODUCTION COMPANY

JULY 2, 1985

Contact:

A. B. Norwood Sun Exploration and Production Company

P. 0. Box 1501 Houston, Texas 77251-1501

(713) 531-2158

HIGH ISLAND EAST ADDITION SOUTH EXTENSION BLOCK A-358 OCS G 6255

TABLE OF CONTENTS

Descr ip t ion of Work

Shallow Hazards Statements

Area Locat ion Maps

Base Support Faci l i ty Data

V i c i n i t y Map

Environmental Safeguards

L is t o f Mud Additives

Descr ip t ion of Dr i l l ing Rig

Air Q u a l i t y Computations

Geological and Geophysical Data

Shallow azard Survey Report

SUN EXPLORATION AND PRODUCTION CCMPANY PLAN OF EXPLORATION

HIGH ISLAND EAST ADDITION SOUTH EXTENSION BLOCK A-358 OCS G 6255

This Exploration Plan f o r High Island East Addit ion South Extension Block A-358 has been prepared in accordance wi th 30 CFR 250.34-1, Gulf of Mexico OCS Orders and Notice to Lessees No. 83-3.

This Block was leased in 1983. Geophysical a c t i v i t i e s havo been con­ducted and the f i r s t exp loratory well should begin as early as January 1, 1986 subject to the a v a i l a b i ' i t ; of a d r i l l i n g r i g , approval of th is Explorat ion plan, approval of an EPA NPDES permit , and the required permit to d r i l l . The t e n t a t i v e d r i l l i n g schedule for the second well w i l l depend on the resul ts of Well No. 1.

Well Locat ion Coordinates TVD D r i l l i n g Days

A 1,200' FWL 5,750' FNL 6,500' 30

B 1,000' FWL 2.200' FNL 6,500' 30

C 3,900' FWL 5,300' FNL 7,500' 35

D 3,000' FWL 2,050' FNL 7,500' 35

E 7,100' FEL 950' FSL 12,000' 65

A Shallow Hazard Survey was completed in August, 1984. Three copies of this report are enclosed.

Since the wells to be drilled are within the four mile zone of the "Coffee Lump", Sun wil l not d r i l l in the no activity zone according to the lease stipulations. (Shunting and monitoring are not required.)

Subpct SHALLOW DRILLING HAZARDS ON EAST ADDITION, HIGH ISLAND AREA, SOUTH EXTENSION, BLOCK A-358 OCS-G 6255

Interoffice Correspondence

Date F e b r u a r y 12, 1985

Location G u l f o f Mexico and Eas t Coast D i s t r i c t

From P r e s t o n E. Chaney

To A l B . Norwood

A high r e s o l u t i o n multi-sensor survey was conducted by John Chance and Associates over the e n t i r e Block during J u l y , 1984. The r e s u l t s of the survey i n d i c a t e a smooth seafloor w i t h no i n d i c a t i o n of surface f a u l t i n g or shallow gas accu­mulation at any o f the f o l l o w i n g l o c a t i o n s :

Location Coordinates

A 1200' FWL & 5750' FNL, Eiock A-358 B 1000' FWL & 2200' FNL, Block A-358 C 3900' FWL & 5300* FNL, Block A-358 D 3000' FWL £ 2050' FNL, Block A-358

The f i n a l l o c a t i o n l i e s i n an area of the block discussed on page eight o f the report. The Pinger penetration was i n ­h i b i t e d i n the c e n t r a l and eastern p o r t i o n of the t r a c t and one explanation of t h i s phenomena i s the presence of biogenic gas i n the near surface sediments. Since no amplitude anomaly i s observed on the sparker records, the pressure state i s assumed to be low. The coordinates of t h i s f i n a l l o c a t i o n are as follows:

Location Coordinates

E 7100' FEL & 950' FSL, Block A-358

PRESTON E. CHANEY, JR. Manager of Geophysics East Coast and Gulf of Mexico D i s t r i c t

Subject LAMBERT COORDINATES OF PROPOSED WELLSITES ON EAST ADDITION, HIGH ISLAND AREA, SOUTH EXTENSION BLOCK A-358; OFFSHORE TEXAS

Interoffice

Correspondence

Date January 31, 1985

Location Gulf of Mexico and East Coast Distr ic t

From Preston E. Chaney, J r .

To Al B, Norwood

The Lambert coordinates of the various proposed welIsites on E.H.I.S.A. Block A-358, are as follows:

Location Coordinates

A 1200' FWL & 5750' FNL, Block A-358 X « 3,651,236 Y « 113,050

B 1000' FWL & 2200' FNL, Block A-358 X » 3,651,036 Y « 116,600

C 3900* FWL & 5300' FNL, Block A-358 X = 3,653,936 Y = 113,500

D 3000' FWL & 2050' FNL, Block A-358 X = 3,653,036 Y * 116,750

E 7100' FEL 4 950' FSL, Block A-358 X = 3,653,776 Y = 103,910

PRESTON E. CHANEY, JR. Manager of Geophysics East Coast and Gulf of Mexico D i s t r i c t

1 •» . v.

E S T C A M E R O N

H I G H I S L A N D

; G A L V E S T O N k A R E A / .

• . * .fir 1 .

A R E A .>•- . - • • -..Vi—r - r " h r T T . . ' U

> • • • •—»«! r:\--~ « 4 «T» • v« > i H I * » • • • ) • • « ' » • V % , # . ,

- •—• • t V̂W • • M M

— i

r i d •"I

^o4p-3-oo°"-

8 o

Sun OCS-G-6255

A-358

3 , 9 0 0

- 1 , 2 0 0 - 0

9 5 0

7,100

I N

S u n E x p l o r a t i o n 4 P r o d u c t i o n C o .

O C S - G - 6 2 5 5

High I s l a n d B lk . A - 3 5 8

P l a n Of E x p l o r a t i o n

S c i l e 1 ' : 2 0 0 0 '

U.S. COAST GUARD PROPERTY

SUH EXPLOSATIOH I PRQCUCf.QN C3.

SA3IME PASS BA:E SITE

SABiHE PA::

ICfr'ERSON COU"TTJUAS

ENVI RONMENTAL - SAF EGUAROS

Sun Expiration and Production Company (Sun) will adhere to all applicable environmental standards of the EpA, MMS and U.S. Coast Guard. Sun is a member of Clean Gulf Assoc'^tcs (CGA) and will utilize their equipment and the manpower and expertise of Peterson Maritime Services, Inc. as well as other specialists in pollution control and clean up as needed.

Existing oil spill cleanup equipment with beach rotection and bird cleaning station are all within a few hours call in the event of a s p i l l . This equipment is maintained on standby and In a ready state at CGA locations at Grand Isle, Louisiana; Houma, Louisiana; Intra Coastal City, Louisiana; Cameron, Louisiana; Galveston, Texas and Rockport, Texas.

The average response times (including 1 ,„ -cut and travel* for the major pieces of oil spill containment and clean-up equipment available (I.e Fast Response Skimmer Systems I and I I , Containment Boom, Radio System, Saucer Type Skimmers, Boat Spray System, etc.) are projected as follows:

Location Hours

Cameron, Louisiana 18 Intra-Coastal City, Louisiana 18 Galveston, Texas i8 Houma, Louisiana 2i Grand Isle, Louisiana 2S Venice, Louisiana 30 Rockport, Texas 30

The response times for larger equipment (High Volume, Open Sea Skimmer System - Hoss Barge) and/or .mailer equipment will vary considerably according to the point o' origin, type of transportation, weather condi­tions, etc.

A copy of Sun's Oil Spill Alert Procedure for the G-:lf of Mexico Is on fi l e with the U.S. MMS offices in the Gulf of Mexico area. Sun intends to utilize Peterson Maritime Services, Inc. for cleanup operations should an oil spill occur.

Sun will not dispose of wel1 fluids containing free oil into the Gulf of Mexico. Any fluid containing free o i 1 will be brought to ihore for proper dispell. All solid wastes will be disposed of as per OCS Order No. 7. Sun's personnel will be instructed in the techniques of equipment maintenance ard operation relative to pollution prevention, and pollution insp°ctions wi 1 be performed as per OCS Order No.7.

Sun's bsse of operations in case of an oil spill is the err.eraercy response center in our officer at Houston, Texas. Field personnel wi'l be dispatched frrr. our base support facility at Sabine Pass, Texas.

OTHER DATA AND INFORMATION

The onshore support base for these proposed development operations will be Sun's existing offshore embarkation terminal at Sabine Pass, Texas. This present (since 1973) offshore support terminal encompasses a total area of 4.25 acres and includes an office building with small inside storage area; pipe and equipment storage yard, boat dock, bulk mud storage, diesel fuel storage, and bulk cement storage and a large ware­house .

Travel routes for boats will be from Sabine Pass, Texas to the Sea Buoy (18 miles) then directly to High Island East Addition South Extension Block A-358 surface location.

Helicopters will use the most direct route feasible. Boat and heli­copter trips to High Island East Addition South Extension Block A-358 w1l probably occur on an average of three trips per week to transport personnel and/or supplies.

AIR QUALITY CALCULATIONS

An A1r Quality Calculations report is attached The results of this report show that the amount of emissions expected for this activity are below the exemption amount and that further review is not required 1n accordance with 30 CFR 250.57-l(d).

ENVIRONMENTAL SAFEGUARDS

Pursuant to 30 CFR 250.34-l(a) (2) (11), Sun submits the following environmental data.

DESCRIPTION

DRILLING MUO MATERIALS

TRADE NAMES

BAROID IMCO MAGCO BAR MILCHEM Bar i te Baroid Imco Bar Magco Bar Mil-Bar Hemati te Nu-Dense Densimix Mil-Dense 11 menite Bar-Gain Bentonite Aquagel Imco Gel Magcogel Mil-Gel A t tapu lg i te Zenogel Brinegel Salt Gel Salt Water Gel Organic Polymer XC Polymer XC Polymer XC Polymer XC Polymer Sodium Carboxymethyl Cellulose Cellex Imco CMC Magco CMC CMC Poly Anionic Cellulose PAC-R Drispac Poly-Pac Drispac Pre-GeUtinized Starch Impermex Imco Loid My-Lo-Jel Mil starch Non-Fermenting Oranic Polymer Dextr id Permaloid Permastarch Perma-Lose L ign i t e Carbonox Imco Lig . innathin Ligco Causticized Ligni te CC-16 Imco Thin Causti-Lig Ligcon Polymer/Res in Blend Durenex Poly-RX Resinex Chemtrol-X Potassium Lignite K-Lig XKB-LIG Chrome Lignosulfonate Q-Broxin VC-10 Spersene Uni-Cal Chrome-Free Lignosulfonate QB-II RD-2000 Magco CF: Uni-Cal S.E.A. Detergent Cor, Det Imco MD D-D Milchem DD Hydroxyethly Cellulose Barvis Saf-Vis X Cellosize WO-21 Ground Mica Micatex Imco Myca Magco Myca Milmica Walnut Shells Wall nut Imco Plug Nut Plug Mil Plug

SPECIALTY MUD PRODUCTS

DESCRIPTION TRADE NAME MANUFACTURER

M i n e r a l Oi l w /Su r fac tan t M ine ra l Oi l w / G i l s o n i t e & S u r f a c t a n t s Diatomaceous Earth M o d i f i e d Tannin P o l y v i n y l Aceta te-Mael ic Anhydr ide Co-Polymer Blended Lost C i r c u l a t i o n Mater ia l C e l l u l o s e Fiber Sodium Po lyacry la te

B i t w i s e r

D i e s p h a l t / S p o t t y D iace l M Desco

Ben-Ex Kwik-Seal Ven-Fyber 201 WL-100

Major Chemical Co.

Major Chemical Co. D r i l l i n g S p e c i a l t i e s Co. D r i l l i n g S p e c i a l t i e s Co.

Rotary D r i l l i n g Services Rotary D r i l l i n g Services Venture Chemical Co. Kelco Rotary

COMMERCIAL CHEMICALS

Sodium Chromate Sodium Hydroxide (Caust ic soda) Sodium Carbonate (Soda ash) Sodium Bicarbonate Calcium Hydroxide (Lime) Sodium Ch lo r ide ( S a l t ) Potassium Ch lo r ide Calcium Ch lo r ide Aluminum Stoara te Graphi te

1. Safety and Monitoring Systems:

A. Mud samples are taken daily to detect the presence of combus­t i b l e gas. Any abnormal reading would a le r t personnel to fol low appropriate safety procedures. The mud goes through a d r i l l i n g mud degasser before being returned to the system and the gas is burned at the f l a r e . Any gas "kick" w i l l automa­t i c a l l y act ivate the B.O.P. system described in the P.O.E.

B. The r ig used w i l l be equipped with Coast Guard approved f i r e f ight ing systems. These systems include f i r e hoses and nozzle appl icators, automatic spr inkler systems and portable and dry chemical f i r e ext inguishers throughout the vessel.

C. In case of evacuation there are l i f e boats, l i f e r a f t s , U.S. Coast Guard approved l i f e vests and work vests f o r a f u l l complement of personnel. A l l crew members are trained in evacuation procedures.

D. / l l personnel are instructed to immediately report any d i s ­charge of o i l to t h e i r supervisor. A l l reports w i l l fo l low the proper procedure, and i f a s p i l l occurs, the 011 Sp i l l and Emergency Contingency Plan w i l l go Into e f f ec t .

2. At t h i s time there are no plans for construction or expansion of any onshore f a c i l i t i e s .

3. Normal contract crews i l l be used fo r the proposed work. There w i l l be minimal add i t iona l personnel.

4. For s o l i d and l i q u i d wastes and po l lu tan ts , see attachment for composi t ion, rates and quant i t ies , (attachment 1)

N f ree o i l w i l l be discharged into the Gulf. I t w i l l be stored and t.ien t ranspor ted to shore f o r disposal at an appropriate dump s i t e .

Discharge

Dri 11 mud

D r i l l cu t t ings

Sewage

Domestic Waste

Rate/Quantity

14,233 Bbl

2,084 gpd

5,000 gpd

5,000 gpd

Composition Treatment

Water D i s t i l l a t i o n 80,000 gpd Units

B.O.P. Solution 125 gpd

Cooling Water 4,214,000 gpd

Deck Drainage 600 gpd

D r i l l mud & fresh water

Subsurface sediment

Treated waste

None

None

Aerobic digestion

Shower, wash & None galley water

Salt Water None

Non-pollut ing None soluble solut ion

Sea water

Fresh water

None

Disposal

Overboard

Overboard

Overboard

Overboard

Overboard

Overboard

Overboard

Oil/water Overboard sep.

Attachment #1

HIGH ISLAND A-358 Discharge Volumes (per we l l )

Csg. Setting Hole Erosion Cuttings ~ Dr lg. Mud Size Depth Size Factor Volume (FT ) Volume (BBL)

30" 750' Jet ted 0% 736 Seawater

20" 1,600' 26" 2 4,074 3,627

13-3 /8" 5,100' 17-1/2" 30% 7,172 6,386

9 -5 /8 " 7,600' 12-1/4" 40% 2,865 2,551

12,000' 8 -1 /2" 402 1,873 1,669

Totals 16,720 14,233

Assumptions:

1 . Straight Hole

2. 300' water depth

3. Above casing design adequate for ant ic ipated pressures and evaluation requirements (no geologic information avai lable at this time).

Note: Above calculat ions were calculated by a Sun D r i l l i n g Engineer.

Attachment *7

DRILLING MUD MATERIALS

DESCRIPTION TRADE NAMES

BAROID IMCO MAGCO BAR MILCHEM Barite Baroid Imco Bar Magco Bar Mil-Bar Hematite Nu-Dense Densimix Mil-Dense Ilmeni te Bar-Gain Bentonite Aquagel Imco Gel Magcogel Mil-Gel Attapulgi te Zenogel Brlnegel Salt Gel Salt Water Gel Oman 1c Polymer XC Polymer XC Polymer XC Polymer XC Polymer Sodium Carboxymethyl Cellulose Cellex Imco CMC Magco CMC CMC Poly Anionic Cellulose PAC-R Drispac Poly-Pac Drispac Pre-Gelatinized Starch Impermex Imco Lnid My-Lo-Jel Mil starch Non-Fermenting Oranic Polymer Dextrid Permaloid Permastarch Perma-Lose Lignite Carbonox Imco Lig Tannathln Ligco Causticized Ligni te CC-16 Imco Thin Caust1-L1g Llgcon Polymer/Resin Blend Durenex Poly-RX Resinex Chemtrol-X Potassium L i g n i t e K-L1g XKB-LIG Chrome Lignosulfonate Q-Broxin VC-10 Spersene Uni-Cal Chrome-Free Lignosulfonate QB-II RD-2000 Magco CF: Uni-Cal S.E.A. Detergent Con Det Imco MD D-D Milchem DD Hydroxyethly Cellulose Barvis Saf-V1s X Cellosize WO-21 Ground Mica Micatex Imco Myca Magco Myca M1lmlca Walnut She l ls Wallnut Imco Plug Nut Plug Mil Plug

SPECIALTY MUD PRODUCTS

DESCRIPTION TRADE NAME MANUFACTURER

w/Surfactant w/Gilsonite &

Mineral O i l Mineral O i l Surfactants Diatomaceous Earth Modified Tannin Polyvinyl Acetate-Maelic Anhydride Co-Polymer Blended Lost Circulat ion Material Cellulose F iber Sodiun Polyacrylate

Bitwiser

Diesphalt/Spotty Diacel M Desco

Ben-Ex Kwik-Seal Ven-Fyber 201 WL-100

Major Chemical Co.

Major Chemical Co. D r i l l i n g Specialt ies Co. D r i l l i n g Specialt ies Co.

Rotary D r i l l i n g Services Rotary D r i l l i n g Services Venture Chemical Co. Kelco Rotary

COMMtRCIAL CHEMICALS

Sodium Chromate Sodium Hydroxide (Caustic soda) Sodium Carbonate (Soda ash) Sodium Bicarbonate Calcium Hydroxide (Lime; Sodium Chloride (Sal t ) Potassium Chloride Calcium Chloride Aluminum Stearate Graphite

1C2/242 - (7)

EXPLORATION PLAN

EXPLORATORY DRILLING RIG with

SAFETY AND POLLUTION-PREVENTION EQUIPMENT

A jackup d r i l l i n g r i g , such as the Rowan-Ft. Worth w i l l be used to con­duct exploratory d r i l l i n g on our shallow water OCS leases. Attached 1s a schematic of this r i g wi th a drawing of the surface diver ter system fo r r i g sa fe t y in accordance wi th OCS Order No. 2. A l i s t fol lows of the r i g ' s blowout preventer system for safety and pol lut ion prevention as requi red Ly OCS Orders 2 and 7.

1 27-1/2" Regan type KFDJ-2000 Diverter System, 2000 psi WP

1 13-5/8" Shaffer annular, 500 psi WP

1 13-5/8" Cameron Type U, 10,000 psl WP; 2 pipe rams and one bl ind ram; BOP's actuated with one 280 ga l . 3000 psi accumu­lator with cont ro l console at d r i l l e r ' s stat ion and one remote located.

An2.-Ac.juA.Te_p VAL.VE-

$ J i . C B O A E . D

P l S C H A E - ^ E .

9 l V E f Z T E R FJICK.-OFI=

A l E.- A C T.J AT EL P

VALVE-

4 L I M B .

PlSCHAlL^E

AIE.- A C T U A T E D

VALVE.

T o S w j . L t .

i

i i

».•• 4 l"w i - , i ; H M I U c i u n e s

mpovbooiirL'

HULII 'OI . f; O l C u l . M I ' l i j l . l l l l . I . | U |

.la t i i i i M i M M l . i l i r , i L I . H I i i i i | i u : . C i l

by :..K.M:.ky U (,|N

HULL STORAGE CAPACITIFS:

llllll W.lla-1 I I /UO bUl

D.nMii KMHI ii inn....II HJUO ow

( I ' . - . d I i n : l ( l i . M I ' . a ' | . .'JUM'j L.CI

fttfUMM W . I I I . I I U / 3 DDI

I I I . I I I l l . l - a - 1 . ..UUO kMU

i n t A I VAI II AIM r

MiOU

St - I

I

Ji &

* Q

fill

a •

•-""I! MAIN DLCK

EDM p

MACHINE

AIR QUALITY INFORMATION

Informat ion required by 30 CFR 250.67-1 is included for the f a c i l i t y described in this Plan of Exploration.

The ca lcu la t ions made under the provisions of 30 CFR 250.57-l(d) i nd i ­cate t h a t the f a c i l i t y i s exempt from fu r the r qual i ty review. The in fonnat ion and calculat ions are attached.

AIR QUALITY CALCULATIONS FOR DRILLING OPERATIONS

HIGH ISLAND EAST ADDITION SOUTH EXTENSION BLOCK A-358

Part iculates (TSP) 8834 g a l x (365 days) x (»33.5 lbs (ton) day lOfO g«

Using Rowan #021 as a typical jack-up r i g . 4 Cat. D-399T engines rated a t 1440 BHP. Assume d r i l l i n g operations 365 days/yr.

Fuel Consumption: A. T r i l l i n g Operations:

0.39#/BHP/hr. 0.39 x 14t0 • 561.6#/hr. X ^ « 79 ga l /h r .

4 x 79 x 24 • 7584 gal/day

B. Transportat lr-

1250 g . .. ,ats and hel icopters

C. Total fue l jse - 8834 gal/day

Projected Emissions • P) 8834 qal x (365 days) x (*33.5

janOuTTTbs • 54 tons

y r .

Sulphur Oxides (SOx): 8834 x 365 x «31.2 x 1 - 5 0 . 3 tons

" T O T T&Tff y r .

N i t r ous Oxides (NOx): 8834 x 365 x *469 x 1 - 756 tons

TtTO 7 m yr.

Hydrocarbons (HC): 8834 x 365 x *37.5 x 1 - 60.46 tons

OTT yrT

Carbon Monoxide (CO): 8834 x 265 x «102 x 1 = 164.44 tons

TTjflrJ y r .

* A i r emission factors obtained from EPA AP-4i Appendix C, Supplement No. 9

B.ock HI A-2?3 is 1C5 miles from Pt. "Skeet" (nearest land) .

SUMMARY OF EXEMPTION CALCULATION INFORMATION

Projected Emissions Pollutant Formula O(miles) "E"(T/yr ) Emissions(T/yr) £ E

TSP E=33.3D 105 3,496 54.01 Yes

so2 E-33.3D 105 3,496 50.3 Yes

NOx E-33.3D 105 3,496 756 Yes

HC E-33.3D 105 3,496 60.46 Yes

Cw E*3400D 2/3 105 75,672 164.44 Yes

Sun Exploration and Production Company, as Operators, believes t h i s Information submitted separately from Exploration Plan for OCS G 6255 High Island East Add i t io r , South Extension Block A-358 to be exempt from disc losure. Sun requests that the data and information enclosed herewith be dispersed for use only by the United States Government.

Geological Information provided Includes:

1. Structural maps

2. Cross Section