In Reply Refer To: RP-2-1 MAR 4 ;986

Norm Producing Attoo tion: Nt. Susan Hctoceck 675 Boring BrUt Houston. Toxas 77 «7

Sent lemon:

Reference is node to your Initial Plan of Exploration aod Environmental loport received February 18. 1986. for Lasses OCS-6 77 55 end 7755. Blocks 203 end 220. respectively. Ship Shoal Area. This plan Includes the act iv i t ies proposed for Hells A through E la Block 203 and Wells A and B 1a Block 220.

In accordance with 30 CFR 250.34. revised Decanter 13. 1979. and our letter dated January 29. 1979. this plan has been determined to be complete as ef March 4. 1985. and Is new being considered for approvsl.

Your plan control number I t N-2416 and should be referenced In your ceaasjolcatloa and correspondence concerning this plen.

Sincerely yours.

(Ong. Sgd.) A Donald Giroir

Acting Regional Supervisor Rules and Production

bcc: Lease OCS-G 7755 (OPS-3-2) (FILE ROOM) »Lease OCS-C 7756 (OPS-3-2) (FILE ROOM) lflPS-3-4, w/Puhl l r Info. Copy of the p i t DO-6

an sue ER (PUBL.REC.)

MJTo1bert:gcwt2/19/86 Disk ls

„ Offr* Of Pre-an ti • CM

MAR f G 1335

Information Services Section

rm mmm

SECTION

O

MARK PRODUCING, INC.

PLAN OP EXPLORATION

OCS-G 7755 and OCS-G 7756

Blocks 203 and 220, Respectively

Ship Shoal Area

Offshore, Louisiana

ITEM

introductory Letter

H t l 1986

* * • ws Nssvaaj

11

Proposed Type and Sequence of Exploration Activities and Timetable

Description of Drilling Vessel

Safety de Environmental Safeguards, Including Oil Spill Contingency Plan

Approximate Location of Proposed Wells and Plat

Structural Interpretation and Shallow Drilling Hazards Report

Onshore Support Base Facilities

Mud Components

Air Quality Review

Coastal Zone Management Statement

Environmental Report

a

February 13, 1986

U.S. Department of the Interior Minerals Management Service P. O. Box 7944 Metelrie, LA 70010

Attention: Mr. Don Solanas Regional Supervisor Offlce of Rules and Production

Res OCS-G 77SS and OCS-G 77S6 AR of Blocks 203 and 220, Respectively Snip Shoal Area Plan of Exploration

Gentlemen:

bi accordance with 30 CFR 250.34, as amended, Mark Producing, Inc., herein respectfully submits for approval a propoaed Plan of Exploration for the referenced block.

Leases OCS-G 7755 and OCS-G 7756, effective August 1, 1985, were purchased by Mark 100%. Previous activities on these leases consist only of preliminary activities that did not result in sny physical penetration of the seabed.

Mark Producing, Inc., submits eleven (11) copies of the proposed Plan of Exploration. Five (5) copies are considered "Proprietary Information" end are exempt from disclosure. Six (6) copies are "Public information". The information believed to be exempt is geological and/or geophysical. As operator rf this lease, Mark requests that this information and data considered exempt be dispersed for use only by the U. S. Government.

Three (3) copies of the High Resolution Geophysical Survey Report for this lease were submitted to your office on January 24, 1986.

We anticipate drilling on this lease to begin on or around June 1, 1986.

If there are any questions, please call.

Sincerely,

Susan Hath cock Supervisor, Regulatory Affairs

/Ish

o Enclosures

• j ft A

PROPOSED TYPE AND SEQUENCE OF EXPLORATION ACTIVITIES AND TIMETABLE

SECTION 2

Mark Producing, Inc. propose* to drill a total of seven (7) exploratory walls on Ship Shoal Blocks 203 and 220. Fivo (S) wells are propoeed for Ship Shoal Block 203 and two (2) wells in Block 220.

Drilling operations are expected to commence June 1, 1988. Each well will take approximately 60 days to drill. Drilling will not bo continuous. The total project should bo complete by the lease expiration date of August 1, 1990.

DESCRIPTION OP DRILLING VESSEL

Section S

A typical jack-up rig will bo utilised for exploratory drilling. 800 attached equipment list and diverter system drawing.

. . ,umm m II i m*m) mi

TYPICAL JACK-UP RIG

I . RIG SPECIFICATIONS

LENGTH, OVERALL: BEAM. OVERALL: OEPTH: DRILLING SLOT: LEG DIMENSIONS:

• • OPERATING SPECIFICATIONS

DRILLING OEPTH: OPERATING WATER OEPTH

NON-HURRICANE SEASON: HURRICANE SEASON:

VARIABLE LOAD: QUARTERS:

MOORING:

HELIPORT:

C. R16 CAPACITIES

BULK MATERIAL: SACK STORAGE: ACTIVE MUO: BLACK MAGIC PIT: SLUGGING PIT: MILL HATER: POTABLE WATER: FUa OIL:

O. CLASSIFICATION

230 FEET 200 FEET 26 FEET

60 I 41 FEET 3 SQUARE - 30 X 447 FEET

30,OOO* FEET

3S0 FEET 275 FEET 4.000.000 LBS USCG CERTIFIED SLEEPING ACCOMMODATIONS FOR 56 MEN UITH COMPLETE MESSING FACILITIES. AIR CONDITIONED 4 - LtTOURMEAU H-1500TS ELECTRIC ANCHOR HINCHES 71 FOOT DIAMETER RATED FOR SIKORSKY S-61 HELICOPTER

6 - 1050 CUBIC FOOT "P" TANKS 5000 SACKS 1430 BARRELS 142 BARRELS 34 BARRELS

6350 BARRELS 970 BARRELS

3020 BARRELS

CONSTRUCTED IN 1974 AT MARATHON LeTOURNEAU. VICKSBURG. MISSISSIPPI. IN ACCORDANCE UITH AMERICAN BUREAU OF SHIPPING RULES, MALTESE CLASS. A-1 DRILLING PLATFORM

UNITED STATES COAST GUARD CERTIFIED

EQUIPMENT SPECIFICATIONS

A. DERRICK:

B. ORAWWQRKS:

C. HOISTING EQUIPMENT:

CROHN BLOCK;

HOOK BLOCK:

SWIVEL:

ANCHOR:

0. ROTARY:

E. MOB'S CONSOLE:

§4 PRIME MOVERS

ENGINES. GENERATORS, ANO DISTRIBUTION:

EMERGENCY POWER:

6. MUD SYSTEM

MUO PUMPS;

CHARGING PUMPS:

MUO NIXING PUMPS:

PVRAM10 147 X 30 X 30 FOOT, 1.329.000 LB GROSS NOMINAL CAPACITY DESIGNED FOR 100 MPH WIND LOAO UITH 18,000 FEET OF 5" DRILL PIPE RACKED

NATIONAL 1625 DE POWERED BV 2 - EMO-079 800 HP MOTORS. GROOVED FOR 1-1/2" LINE. ANO EQUIPPED UITH CROWN-O-MATIC. AND BAYLOR 7838 ELMAGCO BRAKE. 9/16" X 15.000' SAND LINE

ALL 6*0* TON CAPACITY

NATIONAL 860J, 8 - 6 0 INCH SHEAVES, GROOVED FOR 1-1/2" LINE

NATIONAL 760-G-650, 7 - 60 INCH SHEAVES, GROOVCD FOR 1-1/2" LINE

NATIONAL P-6S0

NATIONAL TYPE E8

NATIONAL C-375 UITH 2-SPEED TRANSMISSION, POWERED BY 1 EMO-079 800 HP MOTOR

MARTIN DECKER PANEL UITH HEIGHT INDICATOR, PUMP PRESSURE, PUMP STROKES, ROTARY RPM, TONG TORQUE, PIT LEVEL. FLOW-SHOWS AND RECORDERS UITH REMOTE READOUT

3 - EMO SR-16 CYLINDER OIESEL ENGINES EACH DRIVING A ISOO KU ALTERNATOR. ALL OPERATING A ROSS-HILL SCR SYSTEM

1 - EMO SR-8 CYLINDER DIESEL ENGINE DRIVING A 700 KU AC GENERATOR

3 - NATIONAL 12-P-160 TRIPLEX PUMPS, EACH DRIVEN BY 2 EMO-079 800 HP MOTORS

2 - MISSION 6" X 8* CENTRIFUGAL PUMPS EACH DRIVEN BY A SO HP MOTOR

2 • MISSION 6" X 8" CENTRIFUGAL PUMPS EACH DRIVEN BY A 100 HP MOTOR

SHALE SHAKER:

OESAJIOCR:

OESILTEA:

DEGA5SEA;

GAS DETECTOR:

STAND PIPES:

HUD TESTING EQUIPMENT:

CIRCULATING HEAD:

MUO AGITATORS:

HWVT — |

RAMa:

ANNULAR:

DIVERTER:

CHOKE MANIFOLO:

CLOSING UNIT:

INSIDE OOP ANO SAFETY VALVES:

BRANDT DUAL-TANDEM SCREEN SEPARATOR

OEMCO 3 - 12" CONES

OEMCO 12 • 4" CONES

SUACO

BAROID SINGLE POINT INDUSTRIAL DETECTOR

2 - 5" UITH 2 - 10.0001 TEST ROTARY HOSES

MUO WEIGHT BALANCE, VISCOSITY FUNNEL. VISCOSITY CUP, ANO API FILTER PRESS

KING UITH 4-1/2" I.F. CONNECTION

3 - LIGHTNIN' MOOEL 8SQ20 20 HP MUO MUERS

1 - 13-5/8" CAMERON TYPE "U" SINGLE 10,0001 CAMLOCK CONNECTIONS. HgS SERVICE

1 • 13-5/8" CAMERON TYPE "U" DOUBLE 10.0001 CAMLOCK CONNECTIONS, HgS SERVICE

1 • 13-5/8* HYORIL 10.0001 CAMLOCK CONNECTIONS, H2S SERVICE

1 - 20" HYORIL MSP 200CI ANNULAR BORED TO 21-1/4"

5" LOU PRESSURE DIVERTER SYSTEM UITH FULLY OPENING HYORAULICALLY OPERATED 6" HCR VALVE ANO PNEUMATICALLY OPERATEO GATE VALVES FOR OVERBOARD DISCHARGE

10,0001 TEST CHOKE MANIFOLO, H2S SERVICE

KOOMEY PREVENTER CONTROL SYSTEM UITH 2 -80 GALLON ACCUMULATORS, MASTER ANO REMOTE PANELS

INSIDE BOP ANO TWO FULL OPENING SA/ETY VALVES ON DERRICK FLOOR TO FIT DRILL PIPE FURNISHED BY CONTRACTOR

KiUV VALVE: 6-5/8" OMSCO 10,0001 TEST KELLY VALVE

SPOOLS: 21-1/4" ?000# 600 SERIES KITH 1 • f ' I 1 • 4* 50001 OUTLETS

ORILL STRING ANO HANOI 1 KG TOOLS

DRILL PIPE:

DRILL COLLARS:

KELLY:

KELLY SPINNER:

IRON ROUGHNECK:

POWER SLIPS

am:

TONGS:

ELEVATORS:

•AILS:

SUBS;

PRILL PIPE PROTECTORS:

FISHING TOOLS:

J . CENENT|NG UNJT:

K. CRANES:

L. JOGGING UN|T:

12,000* OF 5" 19.SOI GRADE V UITH 4-1/2- I .F. TOOL JOINTS

3000' OF 5" 24.751 GRADE f UITH 4-1/2" I.F. TOOL JOINTS

18 - 7-1/2" 0.0. 1291/FT UITH 5-1/2" H-90 TOOL JOINTS

0R1LC0. 5-1/4" X 40' HEX

VARCO 6500 POWER SUB

VARCO IR 2000

VARCO FOR 5" DRILL PIPF

1 SET 5" VARCO

1 SET 5" BAASH ROSS

1 SIT 7-1/2" UOOLEY

1 SAFETY CLAMP

2 BJ TYPE OB 3" THROUGH 17-1/2" HINGEO JAM ASSEMBLY

2 SETS FOR 5" DRILL PIPE

1 SET FOR ORILL COLLARS

1 SET BJ 500 TON

2 BIT SUBS ANO CROSSOVER SUBS FOR CONTRACTOR'S DRILL PIPE AND DRILL COI LARS. 2 SPARE KELLY SAVER SUBS

CONTRACTOR UILL SUPPLY PROTECTORS FOR USE IN SURFACE CASING ONLY

1 OVERSHOT 8-5/8" 0.0.. UITH 4-1/2" I.F. BOX. • \ • - I /A" . 6-3/8-. 7-1/2" GRAPPLES

HALLIBURTON TU1N HT-400 UITH CLOSED HIGH-WEIGHT CIRCULAMNG UNIT

3 • MARATHON LtTOURNEAU PCM 120 UITH W BOOMS, RATEO FOR 90,0001 AT 25' RADIUS

PROVISIONS TO ACCOMMODATE ONE UNIT

WIRELINE UNJT:

MISCELLANEOUS EQUIPMENT

WATERMAKER:

SAFETY EQUIPMENT:

WELDING EQUIPMENT:

LUBRICATION:

COMMUNICATIONS:

SUPPLIES ANO SERVICES:

MATHEY ELECTRIC POWERED HYDRAULIC WIRELINE UNIT WITH 15,000' OF .092" WIRE

1 - 400 GPH CAPACITY

2 - WHIT TAKER 28 MAN SURVIVAL CAPSULES

APPLIANCES AS REQUIRED BY USCG TO INCLUDE ALL AIOr TO NAVIGATION FOR DRILLING UNITS

ELCCTRIC ANO OXYGEN-ACTVLENE

ALL L UN HI CAT ING OILS ANO GREASES FOR ALL CONTRACTOR'S EQUIPMENT

360 WATT BASE FM RADIO

VHF MARINE RADIO

RIG TELEPHONE INTERCOM SYSTEM

SUPPLIES ANO SERVICES AS REQUIRED TO PROPERLY OPERATE ANO MAINTAIN THE DRILLING UNIT ANO DRILL'NG EQUIPMENT

CATERING SERVICE ANO SUPPLIES TO PROVIDE FOR CONTRACTOR'S PERSONNEL ANO REASONABLE NUMBER OF OPERATOR'S EMPLOYEES

SHORE BASED DISPATCHER AND RADIO INSTALLATION AT OOCHSITt

TYPICAL JACK-UP RIG

• 13 wr • tfuoor.i .tsi ui.crcuui m vuin i: ASSLUILY

O v c l U - i.e-A (IJ • i X J.u I .

r

• l i

VJ.

1 S i

r i

4 13 M P llrwil "GK" l>Or /y.wo Pii T. »i /A000 PSI W.P.

•. 13 S V C«•..!.r.n "U"!U)P alii

Pipe Kg... tfOOOPSI (t»l * /#.0W P« W.P

1st D«i«>l Ol 4" D-l fu,w LMM A** ri.a,

/

13 ft/? C " U " OOP W.ih StriMj R,.,,., . UTK0PSI |#t|

/̂ OOO P*4 W.P.

13 MT Con.«io>. " U " OOP W.il, P.pc Hmm% . l£000 PSI Tr»l

/f.OW PSI W.P.

TYPICAL JACK-UP RIG

0/VfPTfR 5 YCT&M

A i r * * * * * * * * V # / w c

SAFETY AND ENVIRONMENTAL SAFEGUARDS

Section 4

Safety features during drilling operations will include well control and blowout prevention equipment that meets or exceeds the requirements of OCS Order No. 1.

Oil in eny form shall not be disposed of into the water of the Gulf.

Liquid waste materials containing substances which may be harmful U aquatic life or wildlife, or injurious in any manner to life or property shall be treated to avoid disposal of harmful tub stances into the waters of the Gulf.

Drilling muds containing oil are not disposed of into the Gulf. This type material is loaded and barged to shore for proper disposal. Drilling mud containing toxic substances are neutralized prior to disposal.

Drill cuttings, sand, and solids containing oil are not disposed of into the Gulf unless the oil has been removed.

The subject offshore mobile drilling unit is equipped with drip pans under the rig floor. All oil from diesel engines is pumped to a sump and then pumped into barrels for return to an onshore site.

Operator personnel sre instructed in ths techniques and methods necessary to prevent pollution. Non-operator personnel are instructed and supervised to insure that non-pollution prsctices sre adhered to. The fscilities are inspected dsily.

OIL SPILL CONTINGENCY PLAN

Mark Producing, Inc.'s, Oil Spill Contingency Plan was approved on July 2a, 1985, by the MMS. This plan designates and Oil Spill Team consisting of Msrk Producing personnel and contract personnel. This team's duties sre to el minate the source of the oil spill, remove all sources of possible ignition, deploy the most viable means of available transportation to monitor the movement of this slick, and contain and remove the slick, if possible.

Mark Producing is s member of the Clean Gulf Associates (CGA). The CGA has four permanent bases in Louisiana at Venice, Grand Isle, Intercoastal City, and Cameron, and two bases in Texas st Galveston and Rockport. Each base is equipped with fast response skimmers and there is s barge mounted high volume sea skimmer based at Grand Isle. In addition to providing equipment, the CGA also supplies advisors for cleanup operations.

Deployment time to Ship Shoal Blocks 203 snd 220 is approximately 6 hours from Morgan City, Louisiana.

mm INFORMATION APPROXIMATE LOCATION OF PROPOSED

WELLS AND PLAT Section S

Ship Shoal Blocks 203 and 220 are approximately 70 miles south of the Louisiana coastline.

The propoeed locations for wells to be i Wiled on this block are as follows:

SHIP SHOAL BLOCK 203

WELLS LOCATIONS DEPTH

A Surf: 1400* FNL & 2500' FWL

B Surf: 3400* FNL * 6650* FEL

C Surf: 6300' FNL & 6750' FWL

D Surf: 3400* FNL & 650- FEL

E Surf: 3900* FSL & 2000' FEL

SHIP SHOAL BLOCK 220

A Surf: 4750' FNL & 2500' FWL

B Surf: 4300' FSL & 4650' FEL

196

203

^ 2500' —6

6750'

I .I o o

« 6 5 0 *

MARK PRODUCING, INC. O C S - G - 7 7 5 5 r

8

2 0 0 0 ' - ^

220

FiOC

Mark Produc ing ^ ^ T ^

SHIP SHOAL 2 0 3 OFFSHORE LOUISIANA

PLAN OF EXPLORATION

2000 - 4 0 0 0 ' § 0 0 0 *

t / i | / | f |

1-203

220

2 5 0 0 * j MARK PRODUCING, INC

O C S - G - 7 7 5 6

T 4980'

227 Mark Producing

SHIP SHOAL 220 OFFSHORE LOUISIANA

PLAN OF EXPLORATION

txucn

174

177

173

V -It.0t3.3f'

178

K» -33,984.93'

172

179

LOUISIANA GULF COAST INDEX

L»l ' 99*09'33.43" N

Traced from U.S.G.S. Map No. 2 A Bureau of Land Management

180 181

Lama* 90*34'44.93" W

198 197

!#/ • 99* 33'34.133" La*9 ' 91* ll'99094" \

195

X'9,082,400.00', Y'-' 39^,946.46'

Lat ' 99*33'33.929" \SLam§'91*09*99T93m

194

01 202

Lat '99*31'03.997" lam) '91* ll'93.286"

Ctnttr Point • X' 2,054,600.00, : Y * - 46.9/7.23' _

l l * '99*39]I4.908" tJ*ma'9l*IO04.044e

204 X'9,069,400.00', Y" 53,908 00

Lat '93*31 '09,983" Lamt'91* 09'39.091 "

205

221

r*# -87,999.94'

\ 219 218

225 226 227 228 224

1" : 8 0 0 0 '

PROPOSED MINERAL DEVELOPMENT QULF OF MEXICO - SHIP SHOAL AREA

OFFSHORE LOUISIANA

MARK PRODUCING, INC. 6 /85

177

198

178 rm -33,9*493

197

rm -39,946 46'

179

196 •nvi" .

LOUISIANA GULF C O A S T INDEX

Lat '99*09 3949" tt

Traced from U.S.O.S. Map No. 2 A Buraau ot Land Management

195 194

201 202

Lat • t3* 31'03.897 La*t ' 31* It' 39.399" ^

Lama ' 90*'34'44.99" W

203

mm

204

Km9,083,400.00', 7m- 93,90800

Lat ' 33*31 '03.883" Long* 91*09'33.091"

205

'.22 220

221 g

Lat '99*99'47.904" m 91* It'99.437' \^

Conttr Point

Lat '33*33,38.843" Long'3l* 10 04.949

225 226 j \

227 |

SHIP SHOAL*

219 X'9,083,400.00' 7" 87,889.34'

Lat '93*39'47.409" ^Lam*' 91*09'33.990"

226

AREA

218

229

SHIP

246 245

SHOAL AREA - SOUTH ADDITION

244 243 242

PROPOSED MINERAL DEVELOPMENT GULF OF MEXICO - SHIP SHOAL AREA

OFFSHORE LOUISIANA

1' : 8 0 0 0 ' MARK PRODUCING, INC.

6 / 8 5

STRUCTURAL INTERPRETATION AND SHALLOW HAZARDS REPORT

Section 6

Mark Producing, Inc., has reviewed the geophysical data pertinent to all of Blocks 203 and 220, Ship Shoal Area. This included Echo Sounder, Marine Magnetometer, Side-Scan Sonar/Sub-Bottom Profiler, E.G.&G. Sparker System data obtained by Gardline Surveys, Inc.

All data over snd proximal to the surface locations of Wells A-E in Block 203 and Wells A and B in Block 220 have been studied. No valid anomalies and/or shallow drilling hazards exist at the proposed locations.

These wells will be drilled in a safe end workmanlike manner.

Geo physicist

o

ONSHORE SUPPORT BASE FACILITIES

Section 7

Magco bar's dock in Morgan City, Louisiana will serve as the onshore support base facility during tho exploratory drilling in Ship Shoal Blocks 203 and 220. This will serve as port of debarkation for supplies and crews. No expansion or construction is anticipated with respect to this activity. A list of services and facilities at Magcober's dock that will be utilized in support of this sctivlty follows.

1. 31,000 sack bulk barite storage 2. 3000 bbl. liquid calcium chloride capacity 3. Twenty-four hour service 4. Parking Lot - 100 cars 5. Drill water 6. Drinking water 7. 300 ft. dock space 8. 20 ton crane 9. Office space available, if needed. 10. Bulk delivery barges, liquid mud barges, rig bulk tank (land end inland water),

tugs, offshore boats, and bulk trucks are readily available when needed.

MUD COMPONENTS

Section 8

Attached is a list of mud components end additives, including the common and chemical trade name of each which will bo used in Mark Producing, Inc.'s, operations.

0

SAFETY AND ENVIRONMENTAL NO 6

o... MnMi Hl>

ISSUED B Y THE SAFETY A N D E N V I R O N M E N T A L C O N T R O L D E P A R T M E N T

E N V I R O N M E N T A L I N F O R M A T I O N S U M M A R Y M A G C O B A R P R O D U C T S

The informat ion contained in this summary is • compilation of data generated by OPG Environmental Engineering as well as independent testing laboratories In certain cases the information has been provided by the product supplier.

Thit summary it intended to bt used at a quick roforonct guide, at mora specific infomiation is available through Environmental Engineering. There art t ight data columns included; an explanation of each follows:

Column 1 — Product Name: Sell e> planatory.

Column 2 — Physical or Chemical Composition: Description of tha major chemistry involved in the product.

Column 3 — Concentration Normally Used in Drilling Mud (e/bbi and ppm): Thit column describes tht use con­centrations in both pounds p t r barrel (on topi, and parts ptr million (on bottom).

Column 4 - T L „ , or L D 5 0 Thit it toxicity data generally for aquatic organisms. Fresh or salt water tests will he to indicated. II data represents othtr test species, it wil l bt so noted. T L m and l . D 5 0 represent that concentration of material tested that causeci fatalities is 50% of the test population. Natural dilutions art not taken into account during these tests. Concentrations art expnsted in ppm.

Column 6 - Water Solubility: Descriptive wording found in tht column designates If the product Is soluble in water, and if so. to what extent.

Column 0 - TLV: This is she Threshold Limit Value established by OSHA (Occupational Safety and Health Administration). Thit represents tn airborne concentration of a substance, under which i t is believed that nearly all workers may bt repeatedly exposed day after day. without adverse effect. Tht (*) designates that this material is considered as a nuisance particulate only.

Column 7 — DOT Hazard Class: Tht Department of Transportation hat promulgated very specific regulations per­taining to the transportation of hazardous substances This column will describe that hazard.

Column 8 — Special Comments: Found here wil l bt any handling precautions, etc.

special comment, concerning items such at disposal.

ft

O I L F i E L D PRODUCTS GROUP. DRESSER INDUSTRIES. INC. P.O. BOX S504. HOUSTON. TEXAS 77008

PRINTED IN U.S.A.

111 P R O D U C T

P*AMC

(21 P H Y S I C A L O R

C H E M I C A L C O M P O S I T I O N

13) C O N C E N T R A T I O N N O R M A L L Y U S E D I N D R I L L I N G M U O

14) SS HR. T L _

O R L O J O

IB) W A T E R

S O L U B I L I T Y

Ml TLV

•NUISANCE OUST ONLY

17) 0 . 0 . T .

H A Z A R D C L A S S

IS)

SPECIAL COf MENTS

NOTES

A L U M I N U M

S T E A R A T E

A l u m i n u m

S I * » ' » I »

. 0 1 • .1 » /bb i

3 0 - 3 0 0 p p m N / A Nee l ie iMe Nona Nona

A H e a i a i i n the man* f a c t u m o l I o o o conta iners .

S E N E X A n h y d r i d e .CS aVbbt

ISO pprn Sal twater

600 ppm Apprec iab le • l O m e / m 3 None

A«Oid pro longed e n p o i u r * t o d u t l

B I T L U B E

Reacted e>d NeutraJiMi Phenolic*

3 • 6 H lbb l

SOOO • 1 8 . 0 0 0 p p m

Preth • 97 ppm Sal t 8 0 p p m

Inso lub le Nona Kone

A v o i d pro longed esposure t o vapor*.

C A L C I U M

C H L O R I D E

Ca lc ium

Chlor ide

0 • 2 1 0 aVbbi

0 6 3 0 . 0 0 0 o o r r F r * i n > t . O O O p p m

So lvb ie t o

Sa tu ra t i on None K B * *

C o m p l e t i o n fluids

C A L C I U M

B R O M I D E

Ca lc ium

B ' o m d e

0 • 210 aVbbi 0 • 630.000 ppm

N / A So tuMe t o

Sa tu ra t i on None None

C o m p l e t i o n f l u i d *

C A U S T I C SODA

S o d i u m

M yd ro MtfJv

.25 - 2 # r b b i

790 • B.OCG ftm T e k i a t y w e l l

d o c u m e n t e d Comp le te 2 m a / m 3 Corroa iv*

S 1 ou id n o t be a p H change i n natural water* Meter>t

are corrosive t o t h i n , and shou ld be handled accord - ; .

C A U S T I C

P O T A S H

Potasnurn

H y d r o x i d e

.28 • 7 aVboi 750 6.GO0 ppm

T o n i c i t y w a l l Comp le te 2 m e V m 3 Corrosive

S 1 ou id n o t be a p H change i n natural water* Meter>t

are corrosive t o t h i n , and shou ld be handled accord - ; .

C S A S T O * *

C a l c i u m

Carbonate* a n d

l i ano tu l f e te t

S - 28 avow 14.000 - 75.000 ppm

P r e a h - 8 . 4 0 0 p p m

Salt > 3 0 . 0 0 0 p p m Sl ight • t O m e / m 3

A v o i d p ro longed d i n t e i p o s u r *

C E A i C A L

Catcham

Carbonate* and

NenoMiMetet

S - 10 aVbbi 15.000 • 30.000 ppm

Preeh • 2 6 , 0 0 0 p p m

' Sal t > 3 0 . 0 0 0 p p m A p o r e o a b i e • l O m e / m 3

Nona

B»»ic«lly non to>i«.

C E L L O S E A L Cei topt tene 2 • 18 e/bbi

SOOO - 48,000 ppm N / A Inso lub le • l O m e / r n 3 None

Cel lophane i * n o r m a l l y con t idered mar t .

(11 PRODUCT

NAME

o PHYSICAL OH

CHEMICAL COMPIJMTION

131 C O N C E N T R A T I O N N O R M A L L Y U S E D I N D R I L L I N G M U O

(41 SS MR. TL

O R L O g o *

Bl WATER

S O L U B I L I T Y

161 TLV

•NUISANCE OUST ONLY

(71 O C T .

HAZARD CLASS

(SI

SPECIAL COMMENTS

NOTES

CHIP SEAL Cedar f.oer 2 - IS aVbbi

SOOO - 45.000 ppm mm I nso lub le Sme/m 3 Nona

Toaieitv of uaad chip* it of no consequence

COTTONSEED MULLS

Cataaneeed Mtafte

2 • IS • /bbl 6.000 • 45.000 ppm

N/A I nso lub le • lOme/m 3 Mem

There should be no Byst n i n exposure wi th rhn preetuct.

CYt»AN Sod ium

Poly acrylete 25 - S aVbbi

750- ISOO ppm Preah i iawi •

768 ma/1 Apprec iab le None None

Very torn order toaieitv to ran am* rabbin Tested bv American Cyanamid.

0 .0 . Detergent alkylate!

.1 aVbbi 300 ppm

Praah 248 ppm Salt - 140 ppm

Appreciable None None

Show«d easily biedasreda.

DESCO Sulfomerhyiated Tawunt

2 - S aVbbj 6.000 • 15.000 ppm

N/A Complete OB/me/m 3 None

No toxicity data available - T o x o r y should ba compa­rable to Quebracho

oo-ss SWntOMM * SMica Flow

2 - S P/bbl 6.000 - 18.000 ppm

N/A Insoluble

< 1 0 m g / m 3

Depend ing on

percent of free i ' CJ

None

Toxicity it comparable to MasCOSOf.

Ol ASEAL M Oiatomeceoua term

Deoendi on sporting application

N/A Insoluble 2 Pibert/cc for Asbestos COi ten»

-

Material contamt aabeito*. and mutt be handled accc-c

•nalv

DOS-3 Cotmetk Diesel Oil

3*4 ln,ection Sal I > 1.000 pom Insoluble None None

Seewa er mud with S% OOS - 3 Toxicity " > 10.000 ppm

DRISPAC OSPOStl Et*M»r poly T W

.28 - .8 a/bbi 780 - 18.000 P P "

? N/A Complete •10me/m 3 None

T o x i c i t y on p r o d u c t i t u n k n o w n D r i l l i n g f l u i d w i n

Ompac added haa a toxicity of 46.000 - 74.000 ppm

OOILLAIO on R A P I O R I L L

( L O F L O )

Folynw. Depenot on application

N/A Appreciable None

Avoid eye contact and lone term dul l exposure.

) Pat>» 3 of I

11} PRODUCT

NAME

O l PHYSICAL OR

CHEMICAL COMPOSITION

134 CONCENTRATION NORMALLY USED 01 DRILLING MUO

(4) SS HR. T L _

O R L O M

n WATER

SOLUBILITY

161 TLV

•NUISANCE DUST ONLY

171 D.O.T.

HAZARO CLASS

M l

SPECIAL COMMENTS

NOTES

DOUVIS Polysaccharide J • 1 aVbbi

900 • 3.000 ppm Freah> 1.000 ppm Hygroscopic None None

Should easily b.odeorede

OV-22 rrwtalhc oxides end asphalt

25 aVbbi 750 ppm

N/A Insoluble Nona

Lone term dual exposure thouSd be controlled.

DV 33

Oetereent alkylates in •

eoffitf

5 6 a/bbl 1 SOO - 18.000 ppm

Freeh - 32 ppm Salt • 5 2 ppm

Slifht - Flammable

Utad in oi! mud systems which are not diipoted Of m conventional methods

FLOXIT Copoly mer of aery Ism ids ond) Acrylic Aod

O l • Oa aYbbi 30 - 120 ppm

N/A Appraciafala Name Nona

Avoid pro! on ead duet a apoaur*.

GEO-GEL Sepiolite t r IB aVMat to 45.003 ppm

Fre*h> 16,428 ppm Nona -

Naturally occurring ore. Bes-cally inert.

INHIBITOR 101

Formulated

nephthe bate

1 - 4 aYbM 3.000 - 12.000 ppm

Fret*) • 34 ppm Salt - SI ppm

OiltOsjriiblf 10 ppm None

Dispose a* only tn approved s-ta*. or at fecal law* dictate

INHIBITOR 303

Formufeeed amine* with an organic tatt in a hydrocarbon carrier

1 • 4 aVbbi 3.000 - 13.000 ppm

Freth - 33 ppm Salt - 2B ppm

Diipers.ble onfy

400 ppm Flemmabte

Dispose el onty m approved areas, or at local lews dictate

INHIBITOR 303

Formulated fT*ocpHoti#isf CCTT pounds in an alcohol carrier

1 • 4 aVbbt 3.000 12.000 ppm

Freth 7.300 ppm Salt - 13.790 ppm

Appreciable 20 ppm MOMS

Oitpose of onty in approved areas, or at local laws dictate.

KLEEN-UP D«? IS>f QSlfit *wf*& mpnmnt

5 Freth • 70 ppm Salt - 30 ppm

Appreciable None None

Sbouid ees.iy fecKjecrade.

i tWIK SEAL Cmm f«bsjf. Awt s**»«Mlt, m c *

Depends on seventy Of Sett circulation

Fieeh - 17.000 ppm Insoluble • lOme/m* None

Avoid prolonged exposure to dust

I l l P R O D U C T

O l P H Y S I C A L O N

C H E M I C A L C C e W O S I T l O N

(St C O N C E N T R A T I O N N O R M A L L Y U S E D

I N D R I L L I N G M U O

141 OS N R . TL

0 R L 0 , , ,

191 W A T E R

S O L U B I L I T Y

M l T L V

• N U I S A N C E O U S T O N L Y

HI D O T

H A Z A R D C L A S S

EM

S P E C I A L C O M M E N T S

NOTES

K W I K T H I K Reajtjeaal Bentomte

S • 3 0 a/bW

19.000 - 0 0 . 0 0 0 p p m

Freeh s> 14 .900 p p m

S a i l a t 100 .000 p p m In to ' uWe < 1 0 m g / m 3 N o n a

TLV dependt on percent of (raa niiea.

U M Cele-urn o . .de A - 3 avbM 1.500 6.000 ppm

N / A Fo rma te tw t i on

Smolm*

A i r anal water

on l y

I r r i t a t i n g t o t h i n and l y n hamate e c c o ' d ' - r j i y

L O - W A T E L i m e t t o n e •.ttojov.lL m u d

F r e t h > 100 .000 p p m

Sa i l > 100 .000 p p m •SfOjjSWi • 1 0 / m t / m 3 N o n a

U t e d t o weight m u d i

M C Q U E B R A C H O

Tann in 2 - • e V M *

6 0 0 0 - 1 9 . 0 0 0 p p m

F roa* - 13S p p m

Sa l . 158 p o m Mcxieirottf Iy • l O m a V m 3

-

Shou ld eaa.lv Wode grade

M A G C O -

P O L Y - S A L Potytetsctvee. "a

U p t o 13 avow

U p t o 3 6 . 0 0 0 p p m Erath . 3 1 5 p p m — • l O m o / m 3 N o n a

S h o u l d eae*y bvadaaeada w i t h t i m e .

M A G C O C M C CerbOa y me thy l •

ceJiutoae .29 • 3 a / b w

790 • 6 . 0 0 0 p p m N / A Apprec iab le N o n a -

a i a d a p adab l i T o a i e i t y ia u n k n o w n , howeve r .t at a ' o o c

a a W t i M .

M A O C O I . U B E

P»'»l«miC

i n an

tetjeatattaWOa

5 . 2 avbw

1.900 6 .000 p p m

F re th • 167 p p m

SaH - 4 7 7 p p m

A ^ t t n t c i a b N

r n ly i n

treeh weter

N o n e None

S n o u i d eati iy Wodearada

M A G C O S A R Bar ium l u i fata Oeoano* o n m u d

eaeioSit d i t. red

F r e e h > 100 .000 p p m

Salt > .f*\RSS pom I n i o l ub le M 0 r n e / m 3 None

Na tu ra l rmnera! o re . Beeicette i ne r t .

M A G C O G C L Ben ton i te 9 3 6 a / b w

19 .000 • 1 0 9 . 0 0 0 p p m

E r a t h . 14 .500 p p m

Salt' > 100 .000 p p m I n t O t u b H

< 1 0 m a y m 3

Depend t o n

percent o l

froa UliCJ

N o n e

Na tu ra l m ina ra i ore

M A G C O N A T E

r a m i ul at att

l u H o n a i a

J I - 2 a 'bW 1.500 6 . 0 0 0 p p m

Fraah - 7.4 p p m

SaH • 6 8 0 0 p o m I n t e l vOte N o n a N o n a

A l m o t t to ta l ly n o n d i t p a i t i b t a i n te t t water

a

P R O D U C T N A M E

P H Y S I C A L O R C H E M I C A L

C O M P O S I T I O N

M C O N C E N T R A T I O N N O R M A L L Y U S E D IN D R I L L I N G M U O

141 9 6 N R . T L

O R L O g o 1 "

B l W A T E R

S O L U 0 I L I T Y

(61 T L V

*>UISA I C E D U S T 0 * » \ v

171 O.O.T .

H A Z A R O C L A S S

(SI

S P E C I A L C O M M E N T S

N O T E S

M A G C O N O L 2-e thy ihexano i l .2 P/bbi

300 - OOO p o m

Freth - 4 1 . 5 ppm

Salt - 26 ppm Negl.g.bie None None

Avoid prolonged eipoture to rapon

M A C C O P H O S S o d . u n

lAatattlvaephete .1 - 25 «/bbi

300 - 750 ppm Presh • 1.200 p p m

Salt - 7 .100 ppm A p p r e c i a b l e • I 0 r m / m 3 None

Avoid prolonged exposure to vapors

M A G C O

M I C A M.C. Make*

2 - 30 tVbW

6.000 - 9 0 . 0 0 0 ppm N / A Inso lub le • lOme/trr None

Toxic i ty should ba ni l . at these flakes are insoluble

M I X I C A L c a r b o n * ! *

5 25 P /bo l

1.500 • 7 5 . 0 0 0 p p m • N / A Nil M O m a / m 3 Nona

There thould be no toxicity with calcium carbonate

M U O F I B E R C a n * f iber

2 • I S P/bbl

6.000 - 45 ,000 p p m N / A None Nona

Should ba of no consequence Oust exposures thouid r

controlled

M Y - L O - J C L Starch 1 aVbbi

Z 000 - 24 .000 p o m N /A AopttKiebte • l O m e , ' * 3 Nona

Non-tease: No restriction as a food operator

M Y L O J E L

P R E S E R V A ­

T I V E

Paraforrnet-

dehyde

. 3 - 5 p/bbl

9 0 0 • 1 .SOO ppm N / A

P a r t i a l l y

temperature and

pH dependent

3 m e / m 3 None

Toxici ty Oral-Rat • L O J Q

8 0 0 me/ka body weight

N U T P L U G G r o u n d

w a l n u t | h » l l t

2 - 30 eVbbt

6.000 - 9 0 . 0 0 0 ppm N / A NeeJieable N o r a -

Toxicity should be of little consequence

OH FAZE Blend of dry

materials, in­

cluding clayt

4>n<j C ' l j O n i T * *

23 - 4 0 P/bbl

66 .000 • 120 .000 ppm

F r e t h . 2 . 676 p p m

) Salt - 3 .500 p p m I n s o l u b l e M O m t / m * None

Disposal it no problem, at this is an erf mud product

is n o t d i s c h a r g e d

O S 1

• Sodium Suttite

Maintain excess Sulfite)

at 2 0 - 300 p p m

Peach - 4 5 0 ppm

Salt - 175 ppm Complete None None

Thi t it an 0 * icavaneat.

6 ef 8

M P R O D U C T

N A M E

• P H Y S I C A L O R

C H E M I C A L C O M P O S I T I O N

(31 C O N C E N T R A T I O N N O R M A L L Y J S E O I N D R I L L I N G M U D

w SS H R . TL

O R L O . 0

(SI W A T E R

SOLLHSIL ITY

(SI T L V

• N U I S A N C E D U S T O N L Y

01 D O T

H A Z A R D C L A S S

M l

S P E C I A L C O M M E N T S

N O T E S

OS I L EtanWej

Ma in ta in aacee* a u i i t e

at 100 - 3 0 0 po rn

Fre th - 138 p p m

San - 188 p o m Console i Hone None

T h i t i t an 0 * tceweneer

PIPE L A X M l C M I l M l

rsephtha mmm 1 - I S avtabi

3 .000 - 4 J O O p p m

Freeh - 2 .800 p p m

Sett - 15 .000 p p m inso lub le

4 0 0 p p m to r

N e t * the F lammable

Uaad l e * aoot t reat m e n u Emuis-f .es reocMv m iMasesei

P O L Y B R I N E

F o r m u l e l e d

mmhfmmjrt end

88f89JMBM

3 • S a 'b tx

8 . 0 0 0 - 18 .000 p p m

F re th - 2 .250 p p m

Sett • 8 . 1 0 0 p o m Inso lub le • l O m f f m 3 None

O r y . m a r t mater ia l

P O T A S S I U M

C H L O R I D E CMor lde

Uaad aa M M tne KCI /Po lymer m o d

eyaaema

N / A Soluble M

teeaaretian Name None

ToM-o i y i t veeH e t t a M r t h e d i n l i t e ra tu re

R E S I N E X be/uses and

r e t m t

2 - 8 e /bb i

SOOO - 1 8 . 0 0 0 p p m

Per th • 8 . 4 0 0 p p m

Salt • 8 J O O p p m Comple te N o r e N o n e

A«o*d p ro l onged e a p o t u r e t o d w t t .

S A L I N E X A n alcohol

ether sulfate

1 • 3 aVbbi

3 .000 - 8 . 0 0 0 p p m

Freeh - I S p p m

Salt - 6.7 p p m Apprec iab 'e N o n e F lammable

A v o i d p ro i oneed e a p o t u r e t o vepo r t .

S A L T GE I A m p u l e>te

d a y s

Oa panda o n l i e c e i i t y

t r ea tmen t N / A Insolul - • 1 0 m e / m 3 None

T h n ma te r ia l i t k n o w n a t Putter 's E a r t h : a bas-ca 1 ' , mer :

ma te r ie l .

M i l

Dodacy i Oeneene

Sul fonates m a

hyd roca rbon

earner

.8 - 4 a /bbl

1 3 0 0 13 .000 p p m

F 'e th - 168 p p m

Salt 100 p p m Insoiuble None None

C o n t r o l lone, t e * m vapor exposure N o i d ischarged o-:

m u d p r o d u c t

81-1000 Or gen.c

phaaphetot

M a m t a m eaceta phos-

phate a t 8 - 10 p p m

P4rah . 2 r JO p p m

SaH - 7 . U J p p r r COilltflilafW N o n e —

Used at a scale m i .its. i o r

SODA A S H Carbonate

.38 3 aVtteji

7 8 0 8 . 0 0 0 p p m N / A Modera te * l O m e / m 3 N o n e

T o a i o t v Ora l - Ra t 4 3 0 0 m o / k g

Bas.tei.v non-soaic

Page 7 o»

1 M

P R O O U C T

N A M E

O l P H Y S I C A L O N

C H E M I C A L CC*** COITION

131 C O N C E N T R A T I O N N O R M A L L Y U S E D IN D R I L L I N G M U O

141 t t N R . T L _

O R L O j o

fci W A T E R

S O L U B I L I T Y

16) TLV

•NUISANCE ONLY

171 D O T

H A Z A R D CLASS

(•> ;

S P E C I A L C O M M E N T S N O T E S

S O D I U M

I I C A P t B O -

N A T E

Srxl .uT. J S - 2 eVbbJ 750 6 .000 p o m

N / A A DC* t?Citt , ,€ • l O m a / m 3 None

Toxicity C * e . - Rot Sgm/kg . Not an irritant 8»i a ,

non-toaie.

S O D I U M C H R O M ATE Chf otTtoter

75 - 2 avow 7SO- - 6 . OOO ppm

N / A C 0 4 T a p ' * " Mmmfm3 C a r r a t i i *

Chrome te treated my all " M i not be ditcheiead to ptt natural environ ment.

S O O I U M

D I C M R O M

ATE

Sod.um

D i f * r©mete

75 2 a/bbi

310 • 6.000 ppm N / A Comp le te mm* C o r r o t . v e

Chroma te treated mudl must not ba »tet ter ead to i«» natural environment.

SPERSENE C h f o m .

U S M M S S w i l l

l a a j p j p

4 mnm 13.000 ppm

Pnteh • 7 J O O p p m

Salt - 12 .200 p o m C o m p t j t t • 1 0 m t / m 3 None

Control long teem duel eapoauret

S T A B I L -

M O L E

6- io aVbw 15,000 - 30.000 ppm

f r a a * > 3 S J O O ppm

Salt > 75 .000 pom Ima lub l t None

S U R F AK-E l i k r l M t o».de .1 aVbM

300 ppm

Fraah 23 .000 pom

Salt - 37 J O O p p m Aporecieb** M ppm Fiemmabie

Control long term vapor exposure

S U R F A K - M •^0"**^W»»C 1 •EjjOEfJja1

C tfeyteVt'it9 4\Hvikini

5 - 1 p/bbl

i .500 3.000 ppm

Fraah . 110 pprt

Salt - I I S p p m A t m i c l a a j i i 50 ppm a .

Control long term aper eapoauee.

T A N N A T H I N Lignite 1 -» ava-et

6.000 - 15 .000 ppm

Freeh • 34 J O O p p m

Salt > 3 0 . 0 0 0 p p m RSSSSpSai • l O m a / m 3 None

Avo.d prolonged duat exposure

U N I S T E A M Q l U i l t a d d w t h

an amine ta l l

Oapandani o l rata o l

steam produced Fraah > J . 1 4 3 p o m

I

C o m lata mm -

For use m geothermeJ environmenrs to reduce eorrct

V E R T O I L 1

Stend ajf dry me-

aariaN. Indue* rig

l a t t * a o d txtept

and SjeedPJO

73 • 4 0 P/bbi

66 .000 - 170.000 ppm

Fnteh - S N ) p p m

SaH - 140 p o m inioluble * 1 OtTlfjx/fTI ^ None

Uaad in oil m u d l » i , . ch are not O i p e i i B o ' m the c o -

ventional methods

(11 PffOOUCT

NAME

Q l PHYSICAL ON

CHEMICAL CCtMPOSITION

Ol CONCENTRATION NORMALLY USED IN ORILL ING MUO

|4| 96 HR. T L _

O R L O J C

IS) eSATEH

SOLUBILITY

(6) TLV

•NUISANCE DUST ONLY

O l O A T .

HAZARD CLASS

Ml

SPECIAL COMMENTS

NOTES

VG-60 Oigenophy. OMJ

S • 7 aft** 1.500 - 6.000 ppm

Ereth> 15.000 ppm Sail > 20.000 ppm

Oitpevtibte • lOma/m 3 None

Geiiinq agent lor oil much

V I S Q U I C K

VIS8ESTOS >»smoMi 6 - to mmm 15.000 - 30.000 ppm

N/A 1 ealalili 2 hmmn/tx Name

Toxicity well documented lor inhalMion Hewche w.t»> caution. Oo not breathe Oiitt

XP30 Chrome l.gtv te 3 - 4 e/bbi

SOOO • 12.000 ppm Fraah - 3.000 ppm Satt - 8.600 porr.

Apiwaciatjlc SmaVm 3 None

Avow] prolonged eapoture* to dutt

?

AIR QUAUTY REVIEW

Section 9

Attached It the projected elr emission schedule for our exploration project st Ship Shoal Blocks 203 snd 220.

i| HilllllilLlHillklllifllL'l ry

P O Box 218753 Houston. Toxas 7721S 713-558-0*207

February 12, 1986

PROJECTED AIR EMISSION SCHEDULE FOR "XPLORATION PROJECT

GENERAL INFORMATION

Ship Shoal Block 203/220 OCS-G 7755/77S6 70 o l ios Jsck-Up Mark Producing, Inc. 675 Boring Drive. Suite 5 Houston, Texas 77057 Ms. Susan Hsthcock .07.000' June 1, 1986 September. 1987 46,500' 60.500'

MAJOR SOURCE (OFFSHORE)

Power used sbosrc d r i l l i n g vessel; approximate footage d r i l l e d 107,000'.*

Projected Emissions Emitted (1bs/dsy**)tons/yesr

Substsnce 1986 1987

CO (102) 9.21 (100) 8.98 SO (33) 2.93 (32) 3.81

2 NOX (481) 43.25 (469) 56.27 VOC (39 ) 3.49 ( 38 ) 4 . 54 TSP (34) 3.07 (34) 3.99

* Bsstd on 60 hph r / f t . from Table 4-3, "Atmospheric Emissions from Offshore Oil snd GAS Development snd Production", EPA No. 450/3-77-026, June, 1977.

• * Emission fsctors from Tsble 3.3.3-1, "CompHstlon of Air Pol lutsnt Emission Fsctors:, EPA Report AP-42, August. 1977.

Locstlon of F s d l U y :

Distance Offshore: Name of Rlg/Plstform: Operstor:

Contsct Person: Total Well Footage to be Dr i l l ed : Dste Dr i l l ing Wi l l Begin: Date Dr i l l ing Wi l l End: Well Footage to be D r i l l ed 1n 1986: Well Footsge to be D r i l l ed 1n 1987:

Projected Air Emissions Ship Shoal Block 203/220 Hark Producing, Inc.

Page 2

MINOR SOURCES (OFFSHORE)*

Including helicopter landing and take-off (10 tr ips/week); supply and crew boats (7 trips/week); and lo/.ding and unloading operations; and incinerat ion o f waste paper (average 750 pounds of waste per month).

Projected Emissions Emitted (tons/year)

Substance 198C 1987

CO 1.49 1.98 SO .05 .06

2 NOX .29 .37 VOC .14 .19 TSP .06 .09

* Tables 3.2.1-3, 3 . 2 . 3 - 1 , and 2 .1 , "Compilation of Air Pollutant Emission Factors", Third Ed i t ion , EPA Report AP-42, August, 1977.

TOTAL ALL SOURCES (TONS/YEAR)

1986 CO SO NOX VOC TSP 2

Major 9.21 2.93 43.25 3.49 3.07 Minor 1.49 .05 .29 .14 .06

Total 10. 70 2.98 43.54 3.63 3.13

1967

Major 8.98 3.81 56.27 4.54 3.99 Minor K98 .06 .37 .19 .09

Total 10.96 3.87 56.64 4.73 4.08

ONSHORE SOURCES

Those should be about the same as minor sources unless new f a c i l i t i e s are Insta l led at the onshore base. No addit ional f a c i l i t i e s are required or planned at this t ime.

Projected Air Eoltslons Ship Shoal Block 203/220 Hark P r o d u c i n g , I n c .

Pogo 3

EMISSION EXEMPTION DETERMINATION

2/3 2/3 For CO: E • 3400D - 3400 (70) - 57,749 tons/year

For NOX, VOC. TSP 4 SO : E - 33.30 - 33.3 ( 70) - 2.331 tons/year 2

As per DOI/MMS regulations, t h i s f s c i l i t y Is exempt from further a i r qua l i ty review as i t hss been determined thet I t s operations w i l l not have s ign i f i cant adverse environmtntal impact on a i r qual i ty .

COASTAL ZONE MANAGEMENT

g m f l H B CERTIFICATION

rian of EKpIoration Type of Plan

Ehip flhool block* 203 and 220 Area and Block

OCS-G 7755 and OCS-G 7756, roepectiwoly

Leeso B b S r

Tht ptor itd act iv i t ies described in deUII In this Plan cooply with

S g ^ g S S l a spprovod Coastal Menagaoont Progrssi(s) and trill

bt c sducttd In a wanner consistent with such Programs).

Arrinasssatits hove boon Mde with tht State-Times In Be ton Rouge,

Louisiana, to publish a public notice of tht proposed activit ies no

later than Hsjxh 7, 1986

Mark Producing. Inc. Ltssee or Operator

Susan Hathocck

ggSMOty 13, 1986 Site

ENVIRONMENTAL REPORT

FEDERAL LEASES OCS-O 7755 AND 7756

SHIP SHOAL BLOCKS 203 AND 220

OFFSHORE TERREBONNE PARISH, LOUISIANA

Tht folic-ving Environmental Report was prepared by J. Connor Consulting for Mark

Producing, Ine. for Coastal Management Consistency Determination by tho State of

Louisiana on operations proposed in ths Plan of Exploration for federal leases OCS-O

7755 and 7756. For inquiries regarding this raport piesse contact:

MARK PRODUCING, INC.

675 BERING DRIVE, SUITE 5

HOUSTON, TEXAS 77057

ATTENTION: SUSAN HATH COCK

(713) 953-5125

DESCRIPTION OF PROPOSED ACTION

Mark Producing, Inc. plans to co. duct exploration activities on Ship Shoal Block 203

and 220 (OCS-G 7756 and OCS-G 7766).

As proposed, the Plan of Exploretion for Ship Shoal Blocks 203 and 220 consists of

drilling ten (10) wells.

At this time, planned commencement date for Well "A" and all associated activities

in the above blocks wiU begin on or ebout May 1, 1966.

(a) TRAVEL MODES, ROUTES AND FREQUENCY

The proposed exploration activity for federal looses OCS-G 7755 snd

OCS-G 7756 will require the use of a jack-up rig to drill the exploratory

wells. The rig will be moved to Ship Shoal Blocks 203 and 220 from an

unknown location in the Gulf of Mexico.

In sddition to the drilling rig, service boats will be used to transport

equipment, material, personnel snd supplies to the drill sites. It is estimated

thet the crew boat and supply boat will make daily round trips to the rig irom

support bases located In Morgan City, Louisiana. The proposed trevel route for

these vessels begins at Morgan City, Louisiana, snd will move to Blocks 203

and 220 via the most direct route from Morgan City, Louisiana.

Helicopter flights to Ship Shoal Blocks 203 and 220 will average 10.5

round trips per week and will origintte from and return to Morgan City,

Louisiana. The helicopters will normally take the most direct route of travel

between the two points when sir traffic and weather conditions permit.

(b) SUPPORT BASE

The proposed ectivities will utilise a support base at Morgan City,

Louisiana The bese provides 24-hour service, s radio tower with phone patch,

dock spsce, offlce space, o parking lot, equipment end supply storage space,

drinking snd drill water, etc. These proposed exploretion activities will help to

maintain this base at its present levels of activity. No expansion of the

physical facilities cr the creation of new jobs is expected to result from the

work planned in conjunction with Blocks 203 and 220.

(c) NEW SUPPORT FACILITIES

No new onshore support facilities such as new land bases, refineries,

storage facilities, pumping stations, boat docks, helicopter psds or fueling

facilities are likely to bo required because of the setivities planned for Blocks

203 and 220. Any newly discovered deposits of hydrocarbons should help to

maintain onshore facilities and activities at or neer their present levels rather

than result in come typo of expansion.

(d) NEW TECHNIQUES OR UNUSUAL TECHNOLOGY

No new techniques or unusual technology will be required for this

operation,

(o) '1APS OF PROPOSED ACTIVITY

As shown by the attached Vicinity Plat, the proposed activity is located

70 miles south from the Louisiana shore,

(f) TRANSPORTATION OF OIL AND/OR OAS

If producible hydrocarbons sre found they are likely to be transported to

shore through connections with the pipelines already in place near Blocks 203

and 220.

DESCRIPTION OF THE AFFECTED ENVIRONMENT

(a) PHYSICAL AND ENVIRONMENTAL

(1) Com marc it] Fishing

Ship Shoal Blocks 203 and 220 ara locatad oporoximstely 70 milts

from shore where the water depth is approximately 120 feet. Shrimp and

menhaden are the primary fishing resources found in this srea.

The placement of a drilling rig on each Block will remove a portion

of ths seafloor and waters above from harvesting by commercial

fisheries. Additionally, tho waters adjacent to the drill sites may

become temporarily tcrbid due to drilling operations. These operations

should have no significant impact on commercial fisheries.

(2) Shipping

Ship Shoal Blocks 203 and 220 are clear of all fairways and

anchorage areas. Operations in this area will be in accordance with the

U.S. Coast Guard's regulations regarding navigation standards. There

should be little or no impact on shipping resulting from the proposed

operations.

(3) Recreation

The proposed activities, which are primarily confined to Ship Shoal

Blocks 203 and 220 are located approximately 70 miles south of the

Louisiana coastline. Along the coastal waters of the Gulf of Mexico off

Terrebonne Parish, Louisiana, are located coastal beaches and ports

supporting pleasure boating and sport fishing. To protect these

recreational resources, Mark Producing, Inc. will comply with OCS Order

No. 7 regarding pollution prevention and control, and hes estsbllshed an

Oil Spill Contingency Plan which was approved by the Minerals

Management Service. There are no adverse impacts expected as a result

of the proposed activities.

(4) Culture.! Resouroos

Ship Shoal Blocks 303 snd 220 lie inside the Culturel Resource

Sensitivity Demarcation Une (USDI, 1976, Visual 1) end, therefore, falls

in sn srea whore cultural resources are likely to be found. An

archeological survey was required for Ship Shoal Blocks 203 and 220.

Mark Producing, Inc. agrees that if any site, structure, or object of

historical or archeological significance should be discovered during

operations, the findings will be immediately reported to the Supervisor

ard every reasonable effort will be made to preserve and protect tho

cultural resource from damage until the Supervisor hes given directions

as to its preservation.

(5) Ecologically Sensitive Features

There are no known ecologically sensitive feotures located on Ship

Shoal Blocks 203 and 220. The closest sensitive feature is located along

the coastal shores of Terrebonne Perish, Louisiana. The sensitive

features include the primary fish snd shellfish nursery grounds, and the

recreational beaches.

With exception to tho minimal boat and helicopter traffic, all

operations will bo restricted to Ship Shoal Blocks 203 snd 220. Tho

proposed activity will have no effect on any ecologically sensitive

features.

(6) Existing Pipelines and Cables

Texas PipeHne Company has s 20" oil Une (OCS-O 3303) which

crosses the esst line of Block 203 approximately 6700' from the northeast

corner snd crosses the south line of Block 203 approximately 7100* from

tho southeast comer. This same pipeline crosses the north l<ne of Block

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220 approximately 7100' from tho northwest corner and crosses the west

Une of Block 220 approximately 800' from the southwest comer.

(7) Other Mineral Uses

The activitiee proposed for Ship Shoal Blocks 203 and 220 will have

no direct or indirect impact on other mineral uses.

(8) Ocean Dumping

Ocean dumping is prohibited in this area.

(9) Endangered or Threatened Species

Mark Producing, Inc.'s proposed operations st Ship Shoal Blocks 203

snd 220 are located approximately 70 miles south of the Louisiana

coastline off Terrebonne Parish, Louisiana. These coastal shores and

uplsnd areas are tho habitat of several endangered or threatened

species. These species include the Arctic peregrine falcon, the red-

cookaded •..oodpeckor, the bold eagle, the American AlUgator, the red

wolf, Kemp's ridley sea turtle. These species msy be effected by the

development of coastal lands and/or the occurrence of oil spills which

msy affect the species directly or through their food sources. Since the

proposed activities include no plans for the development of coastal lands,

the impaot on endangered or threatened species is primarily based on the

occurrence of oil spiUs.

On pages UI-5 through Ul-72 of the Final Environmental Impact

Statement for OCS Sale No. 47 there is a discussion of the factors for

estimating the significance of oil spills and their impects. The impacts

on various endangered and threatened species wiU depend on the nature

of the spill, weather conditions, proximity of spill to species, tolerance

for oU of species, and the response time and effectiveness of the oil spill

cleanup and containment services. Given these variables, the impaot on

the various endangered end threatened speciee will very from little or no

effect to serious.

The experience of oil snd gas exploration in the Gulf of Mexico

indicates that there is s small probability of occurrence of en oil spill.

The Draft Environmental Impaot Statement (DEIS) for OCS Sale No. A-

62 end 62 indicates on page 71 that the "aggregrate IS year spill rate is

.0009 percent of the total volume produced." Table 7, page 73, of the

DELS indicated that there neve been only 30 incidents of oil spills for thb

15 year period. The probability remains km because of the level of

technology used by the oil and ges industry to insure safe and responsible

operations. Mark Producing, Inc. as a prudent operator will take the

necessary measures to reduce the probability of oil spills. Msrk

Producing, Inc.'s proposed operations at Ship Shoal Blocks 203 and 220

should pose no threat to eny endangered or threatened species,

(b) SOCIO-ECONOMIC

(1) Related New Employment

Not applicable at this time.

3. UNAVOIDABLE ADVERSE IMPACTS

The propoeed drilling activity in Ship Shoal Blocks 203 and 220 will result in

the discharge of drilling mud and cuttings into the waters of the Gulf. The discherge

of drill cuttings will bury sessile benthic organisms in local areas under the

discherge. The disposal of mud may result in s minor decreese in primary

productivity due to tho mortality or functional impairment of fvytoplankton and

algae in erea of high turbidity. A large oil spill it very unlikely but could result in

localised severe mortalities, end severe selective and functional impairment of

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phytoplankton communities, thereby altering the community structure fcr sn

unknown psriod of time. These impacts are considered temporary and minor.

Air emissions from combustion of diesel fuel in rig engines, boat engines and

helicopters can affect the air quality near the mobile offshore jackup drilling rig and

near the onshore travel routes, ln most oases, these emissions will be local in nature

and will bs quickly dissipated by climatic conditions. Highly volatile, low molecular

weight hydrocarbons would be released into tho atmosphere from e blowout with

release of .aural gas. These hydrocarbons would undergo some unknown degree of

degradation, possibly resulting in photochemical smog. If a blowout resulted in a

fire, large amounts of particulate carbon and oxides of carbon, along with smaller

but unkown amounts of sulphur oxides, volatile hydrocarbons and partially oxidized

compounds would enter tho air. Local air would be severely degraded for the

duration of the fire. The extent of degradation ta indeterminate, out it ta unlikely

that it would be high enough to affect land resources or human health.

These exploratory ectivities sre not expected to harmfully affect water

quality or interfere with commercial fishing operations, recreational activitiee or

shipping traffic.

SUMMARY

T*e proposed activity will ba carried out and completed with the guarantee of the

following:

1. The best available and safest technologies will be utilized throughout the

project. This includes meeting all applicable requirements for equipment

types* general p ject layout, safety systems, and equipment and monitoring

systems.

2. All operations will be covered oy s Minerals Management Service approved Oil

Spill Contingency Plan.

3. All applicable federal, state, and local requirements regarding air emission,

and wster quality and discharge for the proposed activities, as well as any

other permit conditions will be complied with.

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