I n Reply Refer To: FO-2-1 A p r i l 30, 1990

S h e l l Offshore I n c . A t t e n t i o n : Nr. R. C. Watson Post O f f i c e Box 60159 Kew Orleans, Lou is iana 70160 NOTED - KRAMER Gentleaen:

Rafe >ce I s aad. -o the f o l l o w i n g p l an r ece ived A p r i l 20. 1990:

Type Plan - suppleaenta l Plan o f E x p l o r a t i o n U i s e - OCS-C 7963 Block - 807 Area - M i s s i s s i p p i Canyon A c t i v i t i e s Proposed - V e i l D

I n accordance w i t h 30 CFR ° 5 0 . 3 3 , t h i s p l an i s hereby deeaed s u b a i t t e d and i s now being cons idered f o r approval .

Your c o n t r o l nuaber i s S '45? nd should be l ^ fe renced I n your communication and corresponded e concerning t h i s p l a n .

S i n c e r . l y ,

for. f"r! 7 . * ~ J j . . . . .

D. J . Bourgeois Regional Supervisor F l e l u Operat ions

W i 11 lanson: cck: 04 /23 /90 : POECOM

Shell Offshore Inc. On* Shell Cgu«>e P.O Box 60159 New Ortsan*. L oui»*». •« 70160

Deepwater D I V I S "

APR 20 iqop

Regional Supervisor Of f ice of Field Operations Minerals Management Service 1201 Elmwood Park Blvd. New Orleans, LA 70123-2394

Dear S i r :

SUBJECT SUPPLFMEMAL r- " OF EXPLORATION SOI OCS-G 7958, h!bSISSIPPI CANYON BLOCK 763 SOI OCS-G 7963, MISSISSIPPI CANYON BLOCK 807 OFFSHORE LOUISIANA

Shell Offshore Inc. (SOI) herewith submits for your approval a Supplemental Plan of Exploration (POE) for Location D in OCS-G 7963, Miss iss ipp i Canyon Block 807. Your prompt review and approval of th is Plan w i l l be greatlv appreciated, as d r i l l i n g may commence by Apr i l 30, 1990.

SOI's I n i t i a l POE and Shallow Hazards Report, a Supplemental POE, and a Revised POE were approved by your o f f i ce on June 3, 1988, December 22, 1988, Ju ly 5, 1989, and March I /90, respect ively. The Plans included Locations A, B, and C in each o the captioned blocks.

SOI has d r i l l e d four wel ls . JCS-G 7958 No. 1 , Location C, in Mississippi Canyon Block 763, OCS-G 7963 No. 1 and OCS-G 7963 No. 1 ST-1, Location A, and OCS-G 79S3 No. 2, Location B, in ¥ sslsslppl Canyon Block 807. SOI Is cu r ren t l y d r i l l i n g OCS-G 7963 No. 3, Location C, In Mississippi Canyon Block 807.

The captioned leases are not part of any Biological Sensitive Area, Shipping Fairway, or M i l i t a r y Waming Area. A search for cul tural resources pr ior to d r i l l i n g 1s not required. The d r i l l i n g r i g we propose to use, the d r i l l s h i p "Discoverer Seven Seas", has previously been approved for use in the Gulf of Mexico.

This Plan 1s submitted 1n accordance with 30 CFR 250.30, ef fect ive Nay 3 1 , 1988, and consists of a series of attachments describing deta i ls o f our Intended operations. The attachments we desire to be exempted f r o a disclosure under the Freedom c f Inf -nation Ac re marked "Con f iden t i a l " .

LH9010901 - 0001.0.0

2

Should you require additional In fonnat ion, please contact Al Pickett at (504) 588-0198 or 588-6312 1n our New Orleans o f f i c e .

Yours very t ru l y ,

R. C. Watson

D i v i s i o n Production Ac i s t r a t i o n Manager

ARP/ptc

Attachments cc : D i s t r i c t Supervisor (w/attachments)

New Orleans Dis t r ic t Minerals Management Service 1201 Elmwood Park Blvd. New Orleans, LA 70123-2394

LH9010901 - 0002.0.0

INDEX OF ATTACHMENTS SUPPLEMENTAL PLAN OF EXPLORATION

SOI 0C5^G~79gg, MISSISSIPPI CANVON BLOCK 763 SOI OCS-fi 7963, MlSoTsTIPPI CANVON BLOCK 807

OfFSHORE LOUISTATCT

ATTACHMENT NO. OF NO. DESCRIPTION COPIES

1 Index of Attachments 9

2 Description of A c t i v i t i e s and Hydrogen Sul f ide 5* Determination

3 General Information (Schedule of A c t i v i t i e s , Safety 9 Features, Hydrogen Su l f i de Precautions, Po l lu t ion -Prevention Features, D r i l l i n g Operations, Well Abandonment)

4 Plat, Surface Locat ion of Wells 9

5 Plat, Proposed Bottom-Hole Locations and Depths 5*

6 Geologic Structure Map 5*

7 Cross Section, A 5*

8-A L is t , D r i l l i ng Mud Components and Additives 9

8-B Hud and Cuttings Discharge Volumes 9

8-C Schematic - Mud and Cutt ings Discharge Volumes 9

9 Comnents, Sp i l l Prevent ion, Control and 9 Countermeasure Plan

10-A Comments, A1r Emissions Data 9

10-B Diagram, Ai r Emissions Source and Elevation 9

11 Description, Onshore Support Fac 4 Hty and Support 9 Vessels, Descr ip t ion , Travel Frequency

12 Shallow Hazards and Chemosynthetic Organisms 5* Comments

13 Plat, Transportation Routes and Shore Base 9 Description

•Conf ident ia l

Attachment 1

LH9010901 - 0004.0.0K

GENERAL INFORMATION SUPPLEMENTAL PLAN OFTxTCPRATION

SOI OCS-G 7958. MISSISSIPPI CANVON BLOCK 763 SOI OCS-fi 7963! MISSISSIPPI CANVON BLOCK 507

OFFSHORE LOUISIANA

SCHEDULE OF ACTIVITIES

Exploratory drilling may commence as early as April 30, 1990, provided the rig "Discoverer Seven Seas" Is available. Drilling the location 1s expected to require about l r1 days.

SAFETV FEATURES

The drillship "Discoverer Seven Seas" complies with all of the regulations of the American Bureau of Shipping (ABS), International Maritime Organization (IMO) and the United States Coast Guard (USCG).

HV0RC6EN SULFIDE PRECAUTIONS

The geological formations that will be encountered in the Plan wells are not expected to contain hydrogen sulfide (H^S).

POLUmON-PREVENTION FEATURES

All sewage, waste, and chemicals are collected and transported to shore for disposal.

DRILL IN6 OPERATIONS

All drilling operations will be conducted under the provisions of 30 CFR, Part 250, Subpart D, and other applicable regulations and notices. Including those regarding the avoidance of potential drilling hazards and safety and pollution prevention control.

WELL ABANDONMENT

The well(s) will be drilled, evaluated, and either temporarily or permanently abandoned In accordance with 30 CFR, Part 250, Subpart 6. If further exploration, development, or production activities are to be undertaken thereafter, appropriate plans will be submitted.

Attachment 3

LH9010901 - 0006.0.0

Y* 10,248,480.00

BLOCK 764 OPEN

SURFACE LOCATIQW

Y = K X 2 * H 0 0 O . 0 0 BLOCK 631

SOI

A 5743' FEL A t l t t ' FSL CF ILK. 769 • 324** FEL A 19*8' FSL OF BLK. W C Mtt' FEL A 1040' FSL OF BLK. TSS

MO' FWL A W FBL BF BLK. BBT 2462' FfL A 4173' FML BF BLK. BBT 24*2' FfL A 4253' FNL BF BLK. BBT

*EL A 2963' FKL OF BLK. BOT

WW

ATTACHM£NT 4 S W U 4FFSM0KC INC.

PROPOSED SURFACE LOCATIONS A BATHYMETRY SUPPLEMENTAL FLAN OF EXPLORATION

PROPOSED BOTTOM HOLE LOCATIONS SUPPLEMENTAL PROPOSED BOTTOM HOLE LOCATION (0 ) DRILLED

SOI OCS-6 TtfJ BLK. SOT MISSISSIPPI CANVON

BLOCKS TSS. BOT

4000* mmi

DRIUING MUD COMPONENTS AMD ADDITIVES SUPPLEMENTAL PLAH OF BmOBATIOA'

SOI OC3-C 7fS8. H188I88IFPI CANTON BLOCX 763 SOI OCS-C 7963. MISSISSIPPI CANYON BLOCK 807

orrsBOBi LooisiAm

I . aBBI BBBP OW A BOtJTTJC BASIS

X V BARIOD M-I MXLPARX DESCRIPTIOH

nr BAB BARITE/BARIOD M-I BAR BARITE/MILBAR BARITE (BARIUM SULFATE) Ult WTOKIMC BBUtTUMllE AqOACBL M-I GEL MXLOBL BKXTOBTTE

nr Luara CARBOXOX IARRAXilR LXOOO LIGNITE

XBT CLS Q-meoxii RD-U1 URT CAL BLENDED LIGNOSULFONATE CAOATIC SODA CAUSTIC SODA CAUSTIC SODA CAUSTIC SODA SODIUM HTDRCXTDE ILDMDBJM ALOMIROH STX-RATE ALUMINUM STEARATE ALUMI HUM STEARATE ALUMINUM STEARATE

LDB LDC LIME LDC CALCIUM HYDROXIDE

tB7 C'JSTICTZED OB-li CAOSTI LIGCON BLENDED LIGNITE/CAUSTIC

SOOA ASM SODA ASI SODA Aii. SOOA ASH SODIUM CARBONATE SODIQH BICARBORAIE BICARB BICARB BICARB BICARBOMATE OF SODA

XWIX-TJMP BARAKEX RESINEX I I CHEMTROL-X/FILTREX SELECTED POLYMER BLEND COB DAT. DD M.D. DETERGENT

IOTDDOAM BARA-DB70AM I DEPOAM-X W.O. DEPOAM/LD-8 DEFOAMER (USUALLY ALCOHOL BASED)

xor mn. AKZAFLOS DMS - NONIONIC MUD SURFACTANT

mr CMC CMC OR CELLEX CMC CMC SODIUM CARBOXY METHYL CELLULOSE

BAIT SALT SALT SALT SODIUM CHLORIDE

mr SXABCH MM EMM! MI-LC-JEL HILSTARCH PRSUELATDTIZED STARCH

mr AF-21 CTPAH, WL-100, POLYPAC SP-101 CYPAN OR WL-100 SODIUM POLYACRYLATE

mno DEXTRID POLY SAL PERM-LOSE ORGANIC POLYMER OBISTAC/IDF-FLR DRISPAC OR PAC POLT-PAC DRISPAC POLYANIONIC CELLULOSE

omoM ctr CTP CTP GYPSUM (PLASTER OF PARIS) POLTDRILL SULFONATED POLYMER MEW-VIS POLYSACCHARIDE POLYMER

BML/SUPEKDRIU 'T«/SUPERDRIL HME/SUPERDRIL GILSONITE (TREATED) - NATURAL

mm**" BLACK MACIC SUPFJOOX (SFT) PIPE-LAX W BLACK MACIC SUPERMIX (SFT) MOD CONCENTRATE FOR SPOTTING FUJI

TDUJU BMTXBO-SOBQ LUBE-106, LUBE-153 LUBRISAL ORGANIC LUBRICANT

Nta MICA TEX nu (c OR p) MIL-MICA MICA-FLAXES mr VALVOT HULLS Mill MBT RDT PLUC (C, M, OR P) MIL PLUC GROUND WALNUT OR OTHER RUT BULLS

At tint— nt 8-A

LH9C10901 - 0007.0.0

2

I B ? BARIOD M-I MILPARK DESCRIPTION

XBIUM CHROMA! B SODIUM CHROMATE SODIUM CHROMATE SODIUM CHROMATE SODIUM CHROMATE ippiaej f j B j a j IRONITE IRONITE IRONITE SYNTHETIC IRON OXIDE, H S SCAVENGER

rrJK GAJTJ0B43S RO-SOLT SULF-X MIL CARD H S SCAVENGER (ZINC CARBONATE)

rCFLOC l-X MOD POLY-PLUS SEPARAN POLYACRYIAMIDE POLYMER

8APP SAFF SAPP SAFF SODIUM ACID PYROPHOSPHATE

- - - SHALE TROL ORGANO/ALUMINUM COMPOUND BOB BOB KOH KOH POTASSIUM HYDROXIDE

wa. ECL KCL KCL POTASSIUM CHLORIDE (POTASSIUM) MF-1 MP-1, BORDTLOC MF-1 MF-1 SELECTIVE FLOCULANT

BER-EX BEN-EX GELEX BER-EX CLAY EXTENDER

SOLTEX SOLTEX SOLTEX SOLTEX WATER SOLUBLE SULFONATED ASPHALT

11- OIL BASE HDD ADDITIVES

H U M 1IX BHD L IRY5RHUL VERSAMUL CARBO-TEC L PRIMARY EMULSIFIER

f — — F L E-Z MUL - CARBO-MUL SECONDARY EMULSIFIER

t m t f m T , t t

l DD LOC DRILTRBAT VERSATflTN - DISPERSANT

THTTTIT1TTIJ BSX DURATONE VERSATROL - HIGH TEMP. STABILIZER, FILTRATE CONTROL TORE CBL TONE VERSAGEL CARBO-GEL VKRCOSIFTER WEIGHT SUSPENDING AGENT

XBT QOTCX LXM LDC LIKE/QUICKLIME LDC CALCIUM HYDROXIDE

VISTA ODC 71 STA ODC VISTA ODC VISTA ODC LOW TOXICITY HINERAL OIL (DIESEL SUBSTITUTE)

HZr BKHBBDTJTI J B ADDITIVES

TRADE M AMS SUPPLIER DESCRIPTION

BP-LOO HYDRA FLUIDS POLYALCOHOL/WATER BLEND - LUBRICANT A-25 CESCO CHEMICAL SURFACTANT /WATER BLEND POR STUCK PIPE BIOSFOZ MILPARK SURFACTANT/WATER BLEND FOR STUCK PIPE 3C POLYMER KELCO XANTHAM GUM (POLYSACCHARIDE) ACETIC ACID MILPARK GLACIAL ACETIC ACID SOLUTION

IV. METHOD OF DISPOSAL;

A l l —tar basa wd aad sud additive* wi l l be disposed of overboard into the Gulf of Mexico provided tbe aaterial to be discharged swats tha toxicity l ia i t specified ia tba USEPA NPDES Ganaral Perait No. GHG28XXXX. Any fluid containing free oil will be transported to a 29 B site for diapoaa 1. Dlaaai v i l l not ba used in auds to ba discharged, axcapt for spotting to free stuck plpa in accord with Part I.A.l(c) of tha perait. A l l B r i l l cuttings, sand, aad othar wall solids frca drilling with vater besed aaaa will ba discharged overboard. Cuttings froa drilling vith a i l B a U aaal aai diesel a i l la and buffers v i l l be hauled to 29 B site for disposal.

Rertacd 3/9/90 JKL Attachaent 8-A (Cont'd)

LH9010901 - 0008.0.0

MUD AND CUTTINGS DISCHARGE VOLUMES SUPPLEMENTAL PLAN OF EXPLORATION

SOI OCS-G 7958, MISSISSIPPI CANVON BLOCK 763 SOI 0C5-6 7963, MISSISSIPPI CANVON BLOCK~507

ONSHORE LOUISIANA"

Al l mud and cuttings wi l l be discharged In compliance with the NPDES General Permit GMG 280000 for Discharge of Effluents. No fluids containing free oi l w i l l be discharged. Dally discharge rates wi l l vary over the Hfe of the well. Assume that the discharge rate Is uniform over the Hfe of the well .

Assume that the cuttings volume discharged Is calculated hole vol i'me times 4.

Assume that the mud volume discharged Is calculated hole volume times 11 (accounts for dilution to maintain rheological properties}. These values are taken from Walk, Haydel and Associates Inc. (1988).

An example 1s attached (Attachment 8-C).

LH9010901 - 0009.0.0

Attachment 8-B

HUD AND CUTTINGS - W L . A VOLUMES "STTPTLEMENTAL PLAN OP EXPLORATION

SOI OCS G~7958, MISSISSIPPI CANVON BLOCK 763 SOI OCS-G 7963! MISSISSIPPI CANVON BLOCK 507

OFFSHORE LOUISIANA

DEPTH CASING HOLE DEPTH BML SIZE SIZE VOLUME ( f T . ) (FT.) J I N J . ( IN.) 1BBLJ

POO 36 36 250

4,900 1,900

6,500 3,500

8,000

11,000 8,000

15,000 12,000

20 26 1,116

15 i f l 1/2 532

13 3/8 17 1/2 446

11 3/4 14 3/4 634

9 6/8 12 1/4 583

20,000 17,000 (TD)

8 1/2 354

Total Hole Voltme: 3,915 bbl Total Cuttings Volume: 15,660 bbl

Total Mud Volume: 43,065 bbl

Attachment 8-C

LH9010901 - 0010.0.0

o i l i f ! LL Com IL. "• LA:1! PUN OF PxT""- ' v ^

SOI OCS-S 7£ > S8T^ I *n ' ^ ' . ,T CC i.iN B' K rC3 SOT o : ^ ~ 7 9 T O X l T : c . • SSlr T'».\JT7 i " yCTTd07

CTTWTETG^'"•<<• '

SOI's "Oil S^-ill ton ingc- y Plan" was approved by che MMS or, November 1987. The latest r . v l s l c ^ o the "Oil Sp i l l Contingency Pla " were submitted to t.ir Mru for ,»al on August 9, 1989. The d r i l l i n g piano proposed herewith w i l l re.y pr ;.?*»*i^y cn the s»pill equipment stored dt the Clean 6ulf Associates base in V-inice, Louisiana. Section I I I of the approved plan l i s t s avai lable e w ' r ^ r . t at th is base plus other bases from which addit ional equipm/v.. i drawn. Section I I l i s t s the preventive .reasures to be take*. l o mlrimize o i l s p i l l s and the reporting procedures to be followed 4 n tiie e«-?nt thst one occurs. Section VI provides a detailed discussion j f th.? clean-up procedures to be i n i t i a ted , W ' u d l n g a l i s t i n g of tht ,->ersonnel who make up the clean-up organlzati n. The t ra in ing of these personnel is summarized 1n Section X I .

OIL SPlL L RESr^SE TLnZ

A c t i v i t y Tv^t Reguired

Make c> ls (e .g . , agencies, CGA, resporss team. 1 vesS'j , e tc . )

Muster response team at Ver ce 7.)*

r^»e -quippiei t ( ? ) *

Boat run (*4 nautical mi les) from W>:st j e l t * 3C 3 to Venice (M/V "Masco * • w1*> i 2 k * c . M t t mua speed)

Load out of equipment (f-RU) 2

Channel run to open /ater (SW Pa.s) 3

Run time t s p i l l locat ion at 12-!.not marlmur 5 speed lo * 60 nautical miles (Including deployment)

RESPONSE TES (rk.v s) 14

I )* ifenAtes rut 1; c r i t i c a l path and not Included In Re:oos s*» Tine.

At'.achmenv 9

LH90:0901 - 0011.0.0

2

A rev.ew of Mr 5 S p i l l T *a . t o ' -natys's ior the subject lease blocks (lau.icn i1t> C-58) snow- tr;*. lo l lop ing probabi l i t ies of a majo.' sp ' " 1 s t r ik ing the 1 i 1 ^ j i r ' u segments w*i.nin 10 days of the s p i l l :

SOI would u t i l i z e the f u l l iesour'jis. of Clean Gul' Associates, a*, well as the other re^urces i den t i f i ed 1n the SOI "Oil Sp i l l Contingency Plan", to respond should th i s type of s p i l l occur. This includes «.">king approval for Corexit 9527 dispersant appHcat i jn 11* tho refourcss threatens j u s t i f y S'jr.li © ;*%»uest. Tie disp rs£ir>t use decision w i l l be guided by the 'iIRG rodel

The str cegies and r e ^ p c : ' ; modes to p. otecc resources in the e.'c.ic of a sp i l l threat are stater* in volu. - TI o' t h i i "ean Gulf Associates Operations Manual.

Refcre^e: (A) Draf t V~, fo r Sales 1^3 and 125 published Marc, 1989, Page* l\-A6 through 3f ' (B) Clean Gulf Associates Operations Manual, Volun. l f , Maps 6 and

Land S;qme. 1 Probability (%)

17. Lafourche, Louisiana 18. Je f fe rson , Lou1s1an. 19. Plaquewilnss, Louis'-<tr\o

2 1

16

Attachment 9 Cont'd.

LH9010901 - 0012.0.0

PROJECT:D AIR EMISSIONS PLAN OR EXPLORATION

SOI OCS-G 7*S8, MISSISSIPPI CANTON BLOCK 7fi3 SOI OCS-6 796.3, gfcsTSTTPI nraygg SLOciTgoT

OTFSHORT" LoUTs IT iA

'PILLING PHASE

A dynamically posit ioned r i l I s h l p w i l l be used for tMs e x p l o n t v r y d r i l l i n g . The sources or air emissions fo r a typical d r i l l - I i ? ; i n . main diesel set (17,000 hp), an au< i l ia ry die e"! set of abou* 7cC .ip, ard an emergency diesel ser f abo'it 120 hp. The m<>1n diesel set s as"wad to have a 50 percent : a l farcer, and the aux i l i a r y and emergency '.ets vie afsum-sd to have a 1 percent lo id fac to r . This totals a d a l l j ^orsepoKar usage of 2<M,000 hp-hr or a 30-day monthly to ta l hor.tpover jsage of 6,120,000 Iip-hr. Bas?d jn the emission rates for o i l - f i r e d rea l loca t ing engines (Taole 4.4 of E pA's Report ^50/3-77-026 e n t i t l e d "Atmospheric Emissions from Of ^no.-i Oi l and Gas OevclcrMnent ano1

Production"), the fol lowing ga-eous emissions w Id ->e qenerateo f rv each well during the 100 days/well d r i l l i n g operat io

DISCHARGE (METRIC T dS) —fEft WELL ANNUAL RATE

N0V 289.82 1057.9

?o 2 19.55 71.3

HC 9.66 .1) . %

-0 42.46 155.0

Part iculates Unknown Unkncwri

WATER TRANSPORTATION

The horsepower usage of the two vessels to be 'ser> ip conmc+ion wi th t.^.is operation 1s as fo l l ows :

190 Ft. Cargo Vessel

2400 hp x .80 (load fac tor ) x ^ p f j ^ X ^ — j ^ - x 3 . : months » 3,061,983 hp-hr.

dr-200 Ft. St /esse 1

165 hp .*. .iw? ,,uad fac tor ) x ^ j j ™ - x 100 days

in hp x .80 (load fac to r ) x x 100 days

TOTAL « 3,445,583 hp-hr.

Attdcnment lG

- 303,500 hp-hr.

80,000 !v -hr .

L :s0l09Pi - 0013.0.0

2

Based on Table 4-4 , the g?.seoui; emissions generated by water transportat ion are . s follows:

DISLHA. Z r

PTK WELI (METRIC i Site)

ANNOSTR^

N0X 48.95 178. '

S 0 2 3.30 12.1

»•*» • w 1.63 6.0

CO 7.17 ?5.2

Par <culates Unknown Unknown

TOTAI ANNUAL DISCHARGE (METHIJ . 'Ojs_2

CO 181.2

TSP, SO ? . NO x, VOC 13c l . l

Emission Exemptions

The proposed locat ion !s 47 miles from the nearest shoreline. Therefore, the * i iss icn exemptljn (E) for the various pol lutants 's as fol lows:

CO E • J400 ( « 7 ) 2 / 3 = 44,280 Tons/Yr.

TS°

SO,

K0X E • 33.3 (47) = I,at5 Tons/Yr.

The total annual discharge does not exceed the exemption to ta ls above; consequently, no fu r t he r a i r qual i ty review Is requ-.'red for the emissions froo the operations i r connection with th is plan.

EMISSIONS' LOCATION AND ELEVATION

The diesel exhaust stacks are located fore of ths helldccx. The elevat ion at the outlet 1s 80 f ee t above the keel (55.25 fe»<. c^ovc the wa r r level wh»>n the ship 1s f u l l y loaded).

Attachment 10 Cont 'd.

LH9010901 - 0014.0.0

SUPPLEMENTAL PLAN OF EXPLORATION SOI OCS-fi 7958, MISSISSIPPI C^RYOTTOCK 763 SuTT)cS.-bT"7g83! HISSIS5 f ' T CANYON BLOCK 807

^ F F T r M c T ^ 7'« iTTO

ONSHORE SUPPORT FACILITY

The onshore support base fo r th is ac t i v i t y >'11] oe SOI's l i s t i n g Venice Terminal. This f a o . ' t y 1s located on t v Mississippi Ri er nsar Venice, Louis iana, approximate'./ 35 miles upriver from the Gulf o Mexico. The physical plant covers 14 acres and Includes 1,000 line*', reet of \<aterfront,

100 square feet of o f f i c e space, 3,200 square feet of personnel quartering uee and 7,200 square feet of covered warehouse area. Onn 45-ton crane and

two fork trucks are used fo r materia? handling operations. No expansion of the Venice Terminal w i l l be required for th is a c t i v i t y . In addit ion to the above, tubu lar goods w i l l usual ly tv shipped by land to enice from one of the cont rac t warehouses locatsd in Morgan Ci ty , Louis an* , which w i l l also require no expansion. Also, whi le personnel transported / l e i icopter w i l l be picked up and returned to SOI's Venice Terminal, both Air Logist ics and PHI operate bases at Venice for re fue l ing and maintenance.

SUP K'f VESSELS

SIZE OR MODEL USE TRIPS PER WEEK

Boat 190'± Cargo 3 or 4

Boat 190'± Standi, i NA

Hel.copter Bell 2C6B, 212, 214, or 412

Cr~* Change and M1sc. 18 to 22

LH9O7.0901 » OCi5.0.OK

Attachment 11

A7 MILES FROM NEAREST SHORELINE

M I S S I S S I P P I C A N Y O N

-i

-ORi L LING AREA I — ' —

-

J

A T I A T I R

AIR WOUTE ^ — — .WATER ROUTE - -I l - l I ; i i i

ATTACHMENT 13

SHELL OfFSHORE INC

LEASE VICINITY 6 TRANSPORTATION ROUTES

SUPPLEMENTAL PLAN Of EXPLORATION SOI OCS-0 7950 BLK.763 SOI OCS-C7963 BLK.807

MISSISSIPPI XANYON BLOCKS 763,807 OFFSHORE LOUISIANA

0 10

MILES