In Rfepiy Refer To- 'RP-2-1 Au* 1983

Amoco oduction Company ('.'SA) Attention: Nr. J . P. Batchelor Post Office 8ox $f»7j New Orleans, Loui;. ia 70150

Gentlemen:

Reference 1s made to your I n l t f s l Plan of Explora'lon r> ved November 17, 1983, for Lease 0C3-G 6176, Block A-12, High Island Area. This plan Includes the d r i l l i ng of two wel ls .

In accordance wi th 30 CFR 250.34, revised December 13, 1979, and our le t te r I j ted January 29, 19/9, th is plan nets been determined to be complete as of November 28, 1983, and 1s now being considered for approval.

Your plan control number 1s N-1421 an ' should be referenced in your communica­t ion and correspondence concerning fit..* plan.

Sincerely yo'srs,

(OHfi.Sfld.p.W. Solanas

D* W. Solanas Regional Supervisor Rules and Production

the plan (Public Records)

HHekmatdoost:gtj:ll/18/83 Disk 3b

Office of Management Support

NOV no 1983

Records Management

Noted D. Arcana

PUBLIC INrOfiivi/VnGN COPY

Amoco Productior Conipany (USA)

J P Batchelor D i v i s i o n Oo*<m on| Suo« ' ' " tBnd« f> | ] • - \ O M Moore Division D'lllmg Sup«nnt tnd tn i

November 11, 1983

F i l e : RJS-256-LF

Minerals Management Service Offshore Operaticns Support P. 0. Box 7944 M e t a i r i e , LA 70010

A t t e n t i o n : Mr. D. tf. Solanas Deputy Minerals Manager

Subject : Plan o f Exp lora t ion

I n accordance w i t h JO CFR 25 34 -1 , Exp lora t ion Plan, revised September 14, 1979, and l e t t e r dated Jcmuary 29, 1979, attached please f i n d e ight copies of Amoco Product ion Company's Plan of Explora t ion f o r High I s iand Block A-12, Offshore Texas.

Amoco r e s p e c t f u l l y requests your favorab le a t t en t i on to t h i s matter. Should fur ther i n f o r m a t i o n be des i red , please contact Harty Van of t h i s o f f i c e at telephone 504/586-6567.

Yours s incere ly ,

High I s l and A-12 OCS-G-6176 Offshore Texas

Office of Management Support

HCV/mkp

Attachments

PLAN OF EXP'ORATION

HIGH ISLAND A-12

OCS-G-bl7t>

OFFSHORE, TEXAS

AMOCO PRODUCTION COMPANY NEW ORLEANS, LOUISIANA

NOVEMBER, 1983

flotej- IMdmatJoost

PUBLIC INFORMATION COPY

250.34-1 EXPLORATION PLAN November 11, 1933

A BRIEF DESCRIPTION OF THE PROPOSED TYPE AND SEQUEN-~ OF EXPLORATION ACTIVITIES TO BE UNDERTAKEN TOGETHER WITH A TENTATIVE TIMETABLE FOR THEIR PERFORMANCE INCLUDING PLAN COMMENCEMENT DATE, SEQUENCE EACH WELL IS TO BE DRILLED, TIME FRAME (DAYS) TO COMPLETE EACH WELL, AND TOTAL TIME TO COMPLETE THE PROPOSED PROJECT.

Amoco Production Company, 100%, acquired High Island A-12 i n Lease Sale 74, August 24, 1983 f o r $4.73 MM.

High Island A-12 i s loca ted in 60' f ee t of water 30 miles o f f s h o r e and south cf Sabine Pass at the coastal

border of Louisiana and Texas (See Attachment No. 1, Locat ion Map).

Amoco's exploratory p l an en ta i l s d r i l l i n g two wel ls u t i l i z i n g a jack-up r i g . The proposed l o c a t i o n s and depths of these wel l s are as f o l l o w s :

A. Sun e: 5000' FNL & 1000' FEL

B. Surface: 800' FNL & 300' FEL

D r i l l i n g of the f i r s t w e l l w i l l commence on December 15, 1983, w i t h d r i l l i n g of the remaining we l l to end on approximately June 15, 1984. T o t a l time co complete the p re j ec t w i l l be approximately 165 days. See Attachment No. 2 f o r the Timing Schedule on the d r i l l i n g c f the two w e l i b .

A DESCRIPTION OF THE DRILLING VESSEL(S), OR OTHER I NSTALLATION (S) OR DEVICE(S) TO BE PERMANENTLY OR TEMPORARILY ATTACHED TO THE SEABED INDI CATING THE IMPORTANT FEATURES THEREOF WITH SPECIAL ATTENTION TO SAFETY FEATURES AND POLLUTION PREVENTION AND CONTROL FEATURES INCLUDING OIL SPILL CONTAINMENT AND CLEANt" PLANS.

The actual r ir , to be used i s not f i r m at t h i s t ime, however, i t w i l l p robably be -.lie j ack-up r i g , Sam Noble. The r i g w i l l be equipped w i t h a l l safety and p o l l u t i o n - p r e v e n t i o n equipment required by the OCS Ord­e r s . See Attachment No. 3 f o r r i g d e t a i l s . See Attachment No. 4 f o r A i r Qual i ty Data.

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I

A l l operations are cov nd by Amoco's O i l S p i l l Contingency Plan r previously approved by the MMS. »

GEOLOGICAL AND GEOPHYSICAL SURVEY RESULTS IDENTIFYING GEOLOGICAL HAZARDS AND/OR SUSRECTED ARCHAEOLOGICAL ANOMALIES. RELATIVE TO PROPOSED WELL(S), A MAP IDENTIFYING ANY SUSPECTED ARCHAEOLOGICAL ANOMALIES RELATIVE TO PROPOSED WELL(S) WHERE AN ARCHAEOLOGICAL SURVEY IS REQUIRED, AND A DES­CRIPTION OF SURVEY EQUIPMENT UTILIZED.

The attached Shallow Hazard Report (Attachment No. 5) confirms that the proposed we l l l oca t ions are free of surface f a u l t s , seaf loor anomalies, and gas accumulations.

I n accordance w i t h the s t i p u l a t i o n o u t l i n e d in the lease agreement, an archaeological survey has been conducted to determine the p o t e n t i a l existence of any c u l t u r a l resource tha t may be a f f ec t ed by our proposed operations. See Attachment No. 6 f o r d e t a i l s on the resu l t s of the archaeological and Multi-Sensor Engineering Surveys.

I n accordance w i t h NTL 83-3, par. 11 . A. 5, a copy of the h igh - re so lu t ion survey data from the two l ines c loses t t o the f i r s t proposed w e l l w i l l be forwarded d i r e c t l y to the Lake Jackson, Texas Minerals Management Service D i s t r i c t .

A LOCATION MAP OF THE LEASE BLOCK(S) RELATIVE TO THE SHORELINE, INCLUD­ING A DESCRIPTION OF ONSHORE SUPPORT BASE FACILITIES, A LOCATION MAP SHOWING EACH PROPOSED WELL, INCLUDING SURFACE AND PROJECTED BOTTOM-HOLE LOCATION, WATER DEPTH (BATHYMETRY), PROPOSED TRUE VERTICAL AND MEASURED DEPTH OF EACH WELL.

Please reference Attachment No. 1, Locat ion Map. This map shows the re la t ionship of Block A-12 High I s l and area, to the shorel ine as w e l l as each of the proposed surface l oca t i ons , t rue v e r t i c a l depths, and mea­sured depths of the two w e l l s .

Operations w i l l be conducted out o f Amoco's base f a c i l i t y at Freeport, Texas. The base i s equipped w i t h both a h e l i p o r t and boat handling f a c i l i t i e s .

CURRENT STRUCTURE MAPS AND, AS APPROPRIATE, SCHEMATIC CROSS SECTIONS SHOWING EXPECTED DEPTH OR MARKER FORMATIONS.

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NOTE: Amoco Product ion Company bel ieves a l l geologic i n fo rma t ion submitted under chis section to be exempt from d i sc losure under the Freedom o f Informat ion Act and ' i t s implementing regula t ions .

-— • Attachment No. 7 is a Structure Map.

Attachment Nos. 8 & 9 are Sche matic Cross-Sections showing the geologic s e t t i n g of che prospects and depict ing s t r u c t u r a l re la t ionsh ips as dee rmined by i n t e r p r e t a t i o n of proprietary data.

A BRIEF DESCRIPTION OF PROCEDURES, PERSONNEL, AND EQUIPMENT USED IN YOUR OIL SPILL CONTINGENCY PLAN THA. ARE TO BE USED FOR PREVENTING, REPORT­ING, AND CLEANING UP A POLLUTION SPILL, INCLUDING EQUIPMENT LOCATION AND TRAVEL AND DEPLOYMENT TIME.

I n addition to those systems commonly u t i l i z e d by indus t ry to prevent p o l l u t i o n , Amoco is a member of Clean Gu l f Associates which i s a combine o f companies formed t o clean up o i l s p i l l s i f such occur. E x i s t i n g o i l s p i l l cleanup equipment w i t h beach p r o t e c t i o n and b i r d - c l e a n i n g s ta t ions can be on hand w i t h i n 10 hours i n the event of a s p i l l . This equipment i s maintained on standby and i n a ready s t a t e at locat ions such as Grand I s l e , Louisiana; Houma, Louisiana: I n t r a c o a s t a l C i t y , Louis iana; Cam­eron, Louisiana; Rockport , Texas; and Galveston, Texas.

A l l applicable s a f e c T and p o l l u t i o n standards of the MMS, USCG, OSHA, ."•nd the EPA w i l l be complied w i t h . A l l personnel - ' i l l be t r a i n e d i n the proper maintenance o f e x i s t i n g equipment and w i l l p a r t i c i p a t e i n d r i l l s and inspections designed to enhance t h e i r a b i l i t y to u t i l i z e the equip­ment to i t s f u l l e s t extent and ensure as safe an opera t ion as poss ib le .

A DETAILED LIST OF MUD COMPONENTS AND ADDITIVES, INCLUDING THE COMMON OR CHEMICAL TRADE NAME OF EACH.

Components of che d r i l l i n g mud may inc lude any or a l l of che f o l l o w i n g : bar ice , ge l , causc ic , soda, chrome 1ignosulfonace, l i g n i c e , sapp, a lumi­num scearace, soda ash, phosphace, g i l s o n i t e , surfaccanc (methanol), Quick Seal. Spotty and CMC. No bac t e r i ac ides w i l l be used i n the mud syscera. Any d r i l l i n g mud, d r i l l c u t t i n g s , sand, or other so l id s w i l l not be disposed o f i n t o the Gulf unless a l l o f the f r ee o i l has been removed.

1

A3 A172

B o

Ao

SCALE: 1" : 4000'

VICINITY

A12 A170

ATTACHMENT #1

Amoco Produciion Coinpany NEW ORLEANS REOION

D I r\r*kf. HIGH ISLAND A3. A12. A172.A179

OCS-G-6174, 6176, 6202, 6207 LOCATION Jt JP

> o I

3

HIGH ISLAND A-12

A :*4 B :81

TIMING SCHEDULE

DAYS DAYS

START DATE DECEMBER 15. 1983

B

i J — 19 > as

HuB Dimensions 200'U>rigxl86Widex2211"r>ep{Triangiito Leg Length i 414'6-K Heliport 62'x68'fbrSik0TskiS-€ SpudCans 48'Diameter x 14'Hig LightShip 7,650 Tons (Appro) Cantilever Distance 34'-30'with8T/SSkiddm

35'Max.w/lO'P/SSkxidm LoadLineDraft 14*6 Operating Depth 3t> Maximum Wind Speed 125mp Maximum Wave Height SO'mSOO'Wau. AirGap 3: Design Bottom Penetration 26t,Maximum rooting bearing pressure 5300 pi Jacking Capacity 7,920 Ton JackingSpeed 1 Pt/MinttJporDowr Certifications US. Coast Guard; ABS Class A-

Levingston's Jack-ups are designed to withstand hurricane conditions in the Gutf of Mexico. The maximum storm criterion can be increased in association with a lesser water depth.

Active Mud 1.124 Bb Fuel 4.495 Bt Potable Water ."£19 Bt DrillWater 5.670 Bi Sack Storage 1.800 Sq.F Bulk Mud and Cement 6300 Cu. F Variable Load 1.800 To:

• - \ •** Copy

vingston Shipbuilding Class r-C Jack-up Drilling Platform

ss These vessels will be classed ABS * Al , nonseM-propeUt , xb-.-r aiing iing unit) tw 30G foot m ri/mm water dtpth by the American Bureau of ppmg. The vessel is also certified by the U.S. Coast Guard

uipment

iliino; Equipment

Equipment Cranes 2-Link-Bdt ABS /API — 2I3A with 100 'Boom Main Engines 3-EMD16Cylmdera350HPeach)

Iw/GM AB-2i -6 Generators) EmergerjcyC neratars l-CaterpiQarL>^w/400KWGer<rator Sewage Treatment Red rox JackingSystem * National Jacks, Racks iPinxwv Electric 2 - SeK-PropeDed 58-Person Enclosed Life Boats

DrawworiB ODwcl,- 3000 AuxjfiryBrake rannac,toc.V-295 MudPunms 2-CHh^A-1700-PTa/TOKP: .ipkx Rotary ODwelL B-49& Derrick Lee C. Moore Standard (T-Leg) L25C.0O0Capacity with 12 Lines BkmoutPreventm 1-LVubkl3-Xxl0,(XX)TypeVXameron

1 - Smgie 13-Vx 10,000 Type V, Cameron 1 - Shaffer 13-H x 5,000 Spherical

1 — 20" x 2.000 MSP K/dril 1 — NL Cont ol System ISO x 72 Accumulator

B.O.?. Handling System 1 — Dual 30 Ton Wireline Houston Systems Drilling Motors 8—GE 752, DC Motors

arters Acrx)mmodations Quarters rbr 80 Persons TreatinentSpace 4-Man

PUBLIC INFORMATION COPY

Plan of .Exploration f o r h. 0n Island Block A-12 OCS-f-6176

Air Quality

This attachment includes the inforraation -p.quii*.d under 30 CFR P u + 250.57(a), to make the necessary finding.- under .hat section.

Exemption Formula

Tne distance of the proposed f a c i l i t y from tne closest onshore area of a state is 37 s t a t u t e miles:

Thc propyl H f a c i l i t y a t: l a t i t u d e 29° 6' 18.6*" north, and longitude 93° 53' 1.65" west.

The closest onshore area of a s.at*- is i n Jefferson county, Texas,

This pr. duces the exempt i m t mount of 1 ,232 tons,';ear f o r p a r t i c u l a t e s , s u l f u r dioxide, n\rrogen o x i v j s and v o l a t i l e oiganic compounds, .nd - exemption amount of 37,7.*.. tons/year for carbon tr--roxide.

Projected Emissions

.atiLude 29° 38' JW.16" north, and longitude 93° 49* 40.5*" west.

D r i l l i n g

The v . l i s proposed to be d r i l l e d cn t h i s pl/»n aie ^ follows:

t-d We 11 Proposed Measured Depth <Feet • Rig Type

OCS-J- i 76 A OCS----6176 B Total Feet D r i l l e d - 5 .300

Jar k-up i^-.k-up

ATTACHMENT NO. J t ,

As.s~.ning t u 9 t 'the rate of d l l i n g w i l l l e constant , the t o t a l fee t ' l i e d d u r i n g each year o f the pl^.n are as f o l l o w s :

1983 2,502 fee t 1984 23,298 fee t -

ssumirg 60'TTqr poi/er hoi * requ i red to d r i l l one " foo t 1 on an r fshoie o i l ana gds d r i l l ;g r i g , his plan w i l l requi re 150,120

s l o w e r hours to coroplt.to he 1383 po r t ion . Tbe du ra t ion of ti.*-operat i n a i s '16 days. Using tht f i s s i o n fac tors f o r dies* powered Indus i. r l a l equipment frooi u b l e 2.3.3-1 o f EPA publ ica :on AP-42, Gcmpilat icn of A i r P o l l u t a n t Emissi^i. Factors , the f o l i o ag t " t a l omii.siono lire expected from ""his p K n :

C«ii.b">n Nitrogon £# i l f u r M<-ao'' ic Oxide hy irocavbons Dioxide Part* a Lates

r > r i l l i n K 0. 50 2. ?. 1. L ) 0. 15 0 17 Rig

We est imate to have t«/J h e l i t c p t a i land n g - t d k t - f ' rye 1-it. c^ch lay at the d r i l l i n g Location f o r the 16 \ i j period r-f i v i i ng a c t i v i t y . Tue i r i i s i o n f a c t o r s per lan>i Lng-t: k^ .o i i cycle tor he l i cop te r s f ro r Table 3.2. -3 o f EPA Publ- iti.cn; AP--'v2 proJure the f o l l o w i n g he l i cop t e r emis. ^ * \ tons:

He icopters 0.09 0.01 0.01 0.00 0.00

We plan one 2,000 horsepo;-;r workboat landing w i t h s i x hours of i d l i n g three times each week at tho d r i l l i n g io'** i i c . j Th<» f u e l consumption whi l e i d l i n g at the d ^ i ^ i n g loca t ion i s seven gallons per hour. The emission f ac to r s (7 gfl.1 Ions/hour x 6 h ru r s / l and ing x 3 landing/week y 3 weeks o f l r - : l l i n g = 378 ga l lons ) t o r CO, VOC and NOx from d iese l vessel emission faciois* by i per*'.'.ng mode Table 3 . 2 . 3 - 3 , and the f ac to r s fo r Z0 n ana pa.t . '~ulate-, trom

Table 3 . 3 . 3 - 1 produce the fo l lo . . i n ,5 workboat -miss ions , i n t o r s , at the d r i l l i n g loca t ion :

Workboats 0.06 0.05 0.02 0 Dl 0.01

•,-hr.otul 0.65 2.38 0.22 o . l o 0.18

Theoj em'ssions are planned to occur i n 19c.

Atmospheric emissions from of f sho : c o i l and gas development and production 'EPA 45D/e-/ /-206, J n w 1.977).

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In 1984," we p l a r to d r i i * 23.'.":9b f e e t . The emissions from the 1984 d r i l l i n g opera t . , are as fc ' lows:

Emissions in tor i

Carbon •Mohoxide

trogei. Oxide Hydroc arbons

. S u l f u r • ' Dioxide Par t i cu la tes

. i 1 1 ing 4.67 21.57 1.73 1.43 1.54

! i opters 0.85 0.08 0.0ft 0.03 0.04

Workbc cs 0.41 0.34 0.13 0.0-. 0.05

Subtotal 5 93 21.99 1.94 1 .50 1.63

These emissions are planned to occur i n 1984.

The annual emission t o t a l s , i n tons , are as fo l lowc

1983 D r i l l i n g O.c i 2.38 o.: L 0. 16 0. 18

1984 D r i l l i n g o.93 21.99 1.94 1.50 1.63

t.erefore, since none -*f these amounts apy ..oach 1,232 tons (37,752 tons f o r f srbon monoxide), we inquest tbat you determine under Section 250.57(d)

n *t this pian be exempt f ror . f u r t h e r a i r q u a i i t v r»v iew.

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New Oflearia neo'Cii Amoco Building Post Of«.c^ Box 50879 New Orleans. Louisiana 70150

Amoco Product ion Company (USA)

• _ \

November 9, 1983

Minerals Management Servioe Deputy Minerals Manager Offshore Operations Support P. 0. Bc- 7944 Metairie, LA 70010

SUBJECT: SHALLOW UAZ*pn REPORT PLAN OF EXPLORA flOW HIGH ISLAND BLOCK A-12, 0CS-G-el76

A hi y h resoi . . t ion, multi-serso. , geophysical survey was conducted over the en wire block. The results indicate a smooth seafloor, no surface faults or shallow gas accumulations at the below l i s ted surface locat ions:

Convent' na) CCP seism'c ai.d "bright-SDOt" data, with associated velc.-" analyses, are free from anoma 'es at the above locations.

The nearest sub-surface geologic ccntrol is located approximately 6 miles tortheast a t High Island Block A-171 where two wells were safely d r i l l ed . A s.milar geologic column is expected at Block A-12.

W. A. Marshall Offshore Division Geophysicist

5000' FNL, .000' FEL of Block A-.2

800' FNL, JOO' FEL of Block A - l *

LD/gc

ATTACHMENT NO. JL