T...

August 23, 1999

Mr. Donald C. Howard Regional Supervisor, Field Operations Minerals Management Service Gulf of Mexico OCS Region 1201 Elmwood Park Boulevard, MS 5232 New Orleans, LA 70123-2394

CERTIFIED MAIL #Z-305-458-632

Subject: Completion of Pipeline Abandonment Activities Segment 8927, ROW OCS-G 11182, GA 349-A to SSTI (GA 350)

Dear Mr. Howard,

Ocean Energy, Inc. has completed the pipeline decommissioning activities for Segment #8927, originating at GA 349 and terminating at a SSTI at GA 350 on July 22,1999.

Regarding the pipeline abandonment: • The pipeline was flushed from the SSTI to the platform. • At the platform end the tube turn was removed and the pipeline plugged and buried. • At the SSTI the sub sea assembly was removed and a blind flange was placed on the ball

valve. Approximately 16' of pipeline was removed. 4 ^^J^i ^j-ztJ^

Please contact Aly Hakam at (713) 895-8240 or Mark Day at (318) 993-4405 if you have any questions or require additional information regarding this notification.

Very truly yours,

Mark Day, F.E. Construction Engineer

RECEIVED

AU3 2- 6 1S99

FIELD ty/L,^ OPERATIONS n < . v *

cc: D. Perrin, B. Lewis, D. Bourgeois, L. Gerhardt, C. Landry

Ocean Energy, Inc. 3861 Ambassador Caffery Parkway, Suite 100, Lafayette, Louisiana 70503 (318) 993-4300 (318) 993-4525 fax

5 . P ^ ' ^

In Reply Refer To: MS 5232 J f 0 9 ]999

Mr. Gordon L. McConnell Seagull Energy E&P Inc. 1001 Fannin, Suite 1700 Houston, Texas 77002

Dear Mr. McConnell:

Pursuant t o 30 CFR 250.1000(b), the relinquishment of the ri g h t - o f - w a y grant associated w i t h the f o l l o w i n g p i p e l i n e i s hereby accepted e f f e c t i v e June 14, 1999:

Pip e l i n e Size Length

Segment No, (inghes) (feet) Secvige Fr

BESTAVAILABLE COPY

SEAGULL ENERGY E&P INC. A Subsidiary of Seagull Energy Corporation 1001 Fannin, Suite 1700 » Houston, Texas 77002-6794 o (713) 951-4700

June 25, 1999

*" RECEIVED V

JUN 2 9 1999

FIELD •„„ OPERATIONS ^

Mr. Donald C. Howard Regional Supervisor, Field Operations Minerals Management Service Gulf of Mexico OCS Region 1201 Elmwood Park Boulevard, MS 5232 New Orleans, LA 70123-2394

Subject: Application to Relinquish Pipeline Right of Way Grant G11182 Application to Abandon Pipeline in Place ROW G11182, Segment 8927

Dear Mr. Howard,

Seagull Energy E&P Inc. herein applies to the Regional Supervisor for the relinquishment of Right of Way Grant No. G11182 and the abandonment in place of pipeline Segment No. 8927.

Regarding Right of Way and pipeline abandonment: • The pipeline will be abandoned in conjunction with the decommissioning and removal of the

Galveston 349 A platform. The work is scheduled for August 1999. • The length and diameters of Segment 8927 is 9,209' of 6" respectively.

Included in this application are a field map of Galveston 349 showing pipeline Segment 8927, and the proposed pipeline abandonment procedures. Please contact Aly Hakam at (713) 895-8240 or Mark Day at (318) 993-4405 if you have any questions or require additional information regarding this application.

Very truly yours,

SEAGULL ENERGY E&P INC.

Gordon L. McConnell Vice President & Controller

GA 349 PROCEDURE PIPELINE ABANDONMENT IN PLACE

SUB SEA TIE IN

1. Close the valve on the trunkline section of the SSTI.

2. Close the valve on the Ocean Energy section of the SSTI.

3. Remove the spool piece on the Ocean Energy section of the SSTI.

4. Place a blind flange on the trunkline spool piece.

5. Connect a threaded coupling and hose to the valve on the Ocean Energy end of the SSTI.

6. Rush 150% the pipeline volume of seawater Into the existing production system or a portable waste treating facility to dean and separate the water from the other materials. Transport the waste in a manner approved by the USCG to shore for disposal. \

7. Remove at least 10' of Ocean Energy pipeline including the_v^lyeand flange^

8. Plug the end of the pipeline using a hand set mechanical plug.

9. Buryjhe end{s) of the pipeline a minimum of three feet below the natural bottom.

10. At the platfonn end, the pipeline will be cut within five feet of the riser tube turn. The tube turn will then be removed.

11. Plug the end ofthe pipeline using a hand set mechanical plug.

12. Bury the end(s) of the pipeline a minimum of three feet below thejntatural bottom.

No portion of the segment will remain In service.

BESTAVAILABLE COPY

ISSUE DATE 3 1 2 i 0 B P

OS* J7A,^

J > ^ ' > 2 >

I 1 8 * OS* 0 » > 2« *

>*9S V is 08 * 074, \ >

SEAGULL ENERGY E&P INC.

PROPOSED 4" NATURAL GAS PIPELINE FROM GALVESTON BLOCK 357 MOSS II - PLATFORM 'A" TO GALVESTON BLOCK 349 PRODUCTION PLATFORM "A"

DWG. NO. DWG. TITLE

9000 TITLE SHEET AND AREA PLOT PLAN 9001 ALIGNMENT FLAN ic PROFILE 9 0 0 2 . . . - RISER DETAILS ( G A 3 5 7 - A ) 9 0 0 3 RISER CLAMP DETAILS ( G A 3 5 7 - A ) 9 0 0 4 RISER DETAILS ( G A 3 4 9 - A ) 9005 USL:-) 9006 MISCELLANEOUS PIPELINE DETAILS 9034D. RISER REMOVAL DETAILS ( G A 3 4 9 - A )

FCR INFORMATION ONLY

'OC i

0C7i --zw

1 OATE Tf Af^O | informalion !

informalion !

Permitting Permitting

RLS RLS

Client Approval 1 RtV SHTS. 9002, 9003 ft 900*

Client Approval 1 RtV SHTS. 9002, 9003 ft 900* 0 8 ^

RIS OATE REVISON BY APPO Construction 0 8 ^

RIS

DEC 01 395

CSS ENONKH^NG. INC. Houston. Texas SEAGULL ENERGY ESP INC.

. . BONNIE L. SMITH . C M t '^,^OnQ^

i?. vEBQUti .*pyga

, . POMMIF L. SMITH 1647-01

PROPOSED +" NATURAL GAS HPEUNE GALVESTON AREA BLOCK 357 TO SLOCK 349

TITLE SHEET AND AREA PLOT PLAN

SOOO

s^mi Qui?2' United States Department of the Interi0^ A N A G £ , l S ^^

MINERALS MANAGEMENT SERVICE Gulf of Mexico OCS Region 1201 Elmwood Park Boulevard

New Orleans, Louisiana 70123-2394

In Reply Refer To: MS 5421 GOM Company Number 1956

OCT 2 0 1995 U OPERATIONS _ A e ^

August 28, 1995

ACTION

Seagull Energy E&P Inc. O i l and Gas

ACCEPTANCE OF MERGER

On March 22, 1995, there was f i l e d i n t h i s o f f i c e f o r approval evidence of merger of Seagull Energy E&P Inc., a Texas corporation, (GOM Company Number 672), with and i n t o Seagull Energy E&P Inc., a Delaware corporation, (GOM Company Number 19 56), e f f e c t i v e December 23, 1994.

The name of the surviving corporation i s Seagull Energy E&P Inc. and the i d e n t i f i c a t i o n number assigned thereto i s : GOM Company Number 1956.

Since the transfer and vesting of property r i g h t s i n the surviving corporation have been effected by State statutes by operation of law and not by ind i v i d u a l conveyances, the merger i s hereby approved insofar as i t affects pipeline rights-of-way under 30 CFR 250, Subpart J, and o i l and gas leases under 30 CFR 256. The change i n ownership as to the pipeline rights-of-way and o i l and gas leases l i s t e d on the attached Exhibits "A" and "A-l" i s recognized and the records so noted.

Chuck Hopson Chief Leasing A c t i v i t i e s Section

Attachments

cc: Lessees and Associates F i l e - GOM Company Number 1956 Case Files

EXHIBIT "A"

LIST OF SEAGULL ENERGY E&P INC.

QIL & GAS LEASES AFFECTED BY THE MERGER;

PCS-Q No, QCS-G No, QCS-G No. OCS-G No. QCS-G No.

3043 11213 13315 13867 14767 3740 11272 13317 13890 14801 3991 11277 13318 14116 14803 4136 12452 13570 14117 14805 5541 12458 13582 14134 14832

6004 12505 13770 14136 14839 6104 12506 13780 14139 14841 7251 12770 13781 14143 8662 12841 13782 14144 9018 12842 13783 14145 9037 12885 13785 14146 9039 12893 13805 14147 9509 12923 13836 14338 9564 13297 13840 14345 9565 13314 13844 14395

OPERATING RIGHTS QNLY

OCS-G No. OCS-G No.

3990 7217 7218 9012

9015 9017 9614 10213 11283

EXHIBIT "A-1B

LIST OF SEAGULL ENERGY E&P INC.

PIPELINE RIGHTS-OF-WAY

8059 14284 ^1182 14683 12740 14722 14051 14723 14063 14963 14073

In Reply Refer To: MS 5232 (ROW OCS-0 11182)

Seagull Bnergy S & P Ino, Attention: Ms. Rita Heintz 1001 Fannin, Suite 1700 Houston, Texas 77002

Gentlemen:

MAR i t 1992 v

AVAILABLE COPY

In aooordanoe with 30 CFR 250.158(b), your letter dated Deoember 10, 1991, transmitted a pipeline oonstruotion report for tbe following right-of-way pipeline looated in the Galveston Area:

Pipeline Right-of-way Size Length Number (inohes) (feet) Servioe From

9,209 Gas/ Well Ho. 1 Condensate Blook 349

Lease OCS-G 7251

To

An 8-inoh SSTI Blook 350 Lease OCS-G 4721

The data which you provided indloates the following test infomation and establishes the assigned maxiaua allowable operating pressure (MAOP) for this pipeline:

Pipeline Right-of-way Humber

Test Pressure Duration MAOP MAOP (hours) (pslj^) Determination

OCS-G 11182 2,230 8 1,424 Tie-in Pipeline

The total length of the l,a3-built,, pipeline right-of-way is 1.74 miles.

In future oorrespondence, please refer to the above pipeline by Its assigned right-of-way number.

Sinoerely,

(Orig. Sgd.) A. Donald Giroir

D. J. Bourgeois Regional Supervisor Field Operations

boc: /l502-01 P/L OCS-G 11182 w/orig report (HS 5232) (K. Faust) Tlft2-01 P/L OCS-G 11182 w/oopy of report im 5033) (D, Sohaefer) MS 5421 MS 5270 HS 5232 Carto w/oy of location plat , //

Mr* PLMar3h:kn:3/6/92

r. 4

SEAGULL ENERGY E&P INC. A Subsidiary of Seagull Energy Corporation 1001 Fannin. Suite 1700 • Houslon. Texas 77002 • (713) 951-4700

December 10,1990

BESTAVAILABLE COPY

a 'J 1 1992 i

fep on,

US Department ofthe Interior Minerals Management Service 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394

Attention: MS 5232, Alex Alvarado

Reference: Pipeline Installations OCS-G 7251, Galveston 349 OCS-G 3991, Eugene Island 45

Gentlemen:

Attached is the as-built drawing for the 4-inch flowlines and the 6-inch sales pipeline in OCS-G 7251, Galveston Block 349. • Constniction of these pipelines commenced December 2,1989 with a final completion date of February 5,1990.

The 4-inch flowline for OCS-G 3991, Eugene Island Block 45 Well No. 8 was installed December 21, 1989. The as-built drawing is attached. The flowline for Well No. 9jias not been installed as this well was never drilled.

Please advise if you require any additional information.

Sincerely,

£6 7 ^

SEAGULL ENERGY E&P INC.

Rita Heintz (/ Regulatory Coordinator

rh

Attachments

BESTAVAILABLE COPY

HYDROSTATIC TEST REPORT

COMPANY:

PROJECT:

SEAGULL ENERGY CORP

GALVESTON 349 TESTED BY: OPI PIPILEINER-5 CREW

TEST SECTION: 1 SECTION 6"

PIPE: 6.625 CD, X 4/32 W.T. .GRADE

PRESSURE RECORDER: MFG AMERICAN METER

LENGTH: 9,210ft

MANUFACTURER:

SERIAL NO.: MMR-1463

DATE CALIBRATED: 2-4-90

DEAD WEIGHT GAUGE: MFG AMAERICAN METER SERIAL NO.: 196-22

DATE CALIBRATED: 29 SEPTEMBER 89

FILL PUMP: MFG/TYPE: AMARILLO RIGHT ANGLE LOCATION: DB I I

LOCATION: LIZ McCALL I I PRESSURE PUMP: MFG/TYPE: RAMSEY

PRESSURIZATION STARTED: TIME/DATE: 2105 4 FEB 90COMPLETED: TIME/DATE: 0830 5 FEB 90

PRESSURE TEST STARTED: TIME/DATE: 0 0 3 0 5 F E B g o 2230 PSIG

DEAD 'HEIGHT 2269

TEST COMPLETED: TIME/DATE 0 8 3 0 5 F E B 9 0

DEAD WEIGHT ;

REMARKS:

0F PIPE TEMP.:

PRESSURE 2280

56.5

2268 5F PIPE TEMP.:

PSIG

"F

WITNESS: COMPANY:

f. CONTRACTOR:

7 ^

DATE: > y~ IO/P-S-IQ

DATE:

Sheet 1 Of 2 HYDROSTATIC TEST PRESSURE LOG

BESTAVAILABLE COPY Company:

Project:

SEAGULL ENERGY CORP

GALVESTON 349 Tested By: QPI PiPELINER-5 CREW

Test Section: 1 SECTION 6" TOTAL FOOTAGE: 9,210ft

Deadweight Gauge: MFG AMERICAN METER Serial NO.: 196-22

Date Calibrated: 29 SEPTEMBER 90

DATE TIME PRESSURE (PSIG) PIPE TEMP. (0F) , DEAD WEldfrr REMARKS

4 FEB 9( 2200 2195 56 2229

u 2233 555 56 570

n 2248 555 56 570

II 2332 2220 56 2250 #*Sta/e Of-

5 FEB 90 0011 2230 56.5 2270

II 0015 2230 56.5 2270 N 1 * •• 0030 2230 56.5 2269

n "0045 2230 55.5 2269

n 0100 2230 55.5 2269

n 0115 2230 55 2269

n 0130 2230 55 2269

H 0200 2230 55 2268

n 0230 2230 55 2268

n 0300 2230 55 2268 i

REMARKS:

WITNESS: COMPANY ^LfrV //J^d£ ^DATE ^'^O

CONTRACTOR ^ ^ W ^ ^ - 7 , / ^ / ? ^ 7^

HYDROSTATIC TEST PRESSURE LOG Sheet 2 of 2

BESTAVAILABLE COPY Company:

Project:

SEAGULL ENERGY CORP

GALVESTON 349 Tested By: QPI PIPELINER-5 CREW

Test Section: 1 SECTION 6" TOTAL FOOTAGE: 9,210ft

Deadweight Gauge: MFG AMERICAN METER Serial NO.: 196-22

Date Calibrated: 29 SEPTEMBER 90

DATE TIME PRESSURE (PSIG) PIPE TEMP. (0F)

4

. £>EAD WEIGHT : REMARKS

5 FEB 9C 0330 2230 55 2268

.. 0400 2235 55 2268

.. 0430 2240 55 2268

.. .0500 2245 55 2268

0530 2250 55.5 2268

0600 2255 55.5 2268

0630 2260 55.5 2268

' 0700 2265 55.5 2268

0730 2270 55.5 2268

» 0800 2275 55.5 2268 f » 0830 2280 55.5 2268

REMARKS:

WITNESS: COMPANY

CONTRACTOR

DATE

^4

BEST AVAILABLE COPY

f >,

^.teT AVAILABLE COPY.

PLATFORM A

X = 3.302.915,17' Y * 341,123.97' LAT. 28° 42' 33 259" N LONG, D'l0 56'04,531" W

DATA TABLE

POINT GRID COORDINATES

POINT GRID COORDINATES

POINT x (ft.) «w

POINT x( f r ) nm

AS - BUILT 6" SALES PIPELINE 69 3, 292,704 346,903

1-RISER 3 f 295, 492 . 91 346,375 .14 / 70 3, 292,268 347, 165

2 3,295,605 345,912 71 3, 291,850 347,388

3 3,296,085 345,592 72 3,291,385 347,683

4 3, 296,516 345,316 / 73 3,291,103 348,004

5 2, 296,906 345,071 ^ 74-RISER 3,291, 185 348,174

6 3,297, 311 344.788 y AS-BUILT DUAL 4" FLOW LINES TO ̂ 3

7 3r 297r 731 344,529 y 1 - RISER J, 295, 494.49 346, 376 . 06

8 3,298,142 344,245 / 17 3, 295.689 345, 934

9 3,298,560 343,986 / 18 3, 296. 097 345, 660

10 3,299,011 343,687 / 19 3, 296,541 345,416

n 3, 300,671 342,613 / 20 3,296.955 345,176 12 3, 301,085 342,335 / 21 3, 297, 443 344,903

13 3,301,506 342,068 / 22 3, 297, 697 344,780

14 3,301,952 341,770 / 23 3,297. 851 344,715

15 3,302,348 341,482 / / 24 3,298,270 344, 457

16-UWTV 3,302,915 341,124 /' 25 3, 298.700 344, 225

26 3, 299,133 343,993

AS - BUILT 4" FLOW LINE TO #2 27 3, 299, 567 343,763

48-RISER 3, 295, 424 . 83 346,375. 10 28 3, 299,999 343,516

49 3,295, 139 345:541 29 3, 300,526 343,611

50 3, 294,676 345,817 30-RISER 3,300,639 344, 116

66 3,293,984 346,237 -

67 3,293,530 346,492

68 3,293,124 346, 675

NOTES

1. Coordinates of all risers were taken from the construction plans, checkod in the field, and were surveyed by olhers.

2. Coordinates of as-built points on all the pipelines are fixes laken on the lay-barge during construction. Fixes were obtained by moans of the Syledis radio-positioning system taking signals from the Gulfsyl chain of radio beacons, Measurements were taken from the antenna lo the bead stall and the heading of the lay-barge was monitored constantly, so that the lixes would relllect the actual position of the pipe on the lay-barge.

3. The lay-barge positions in the curves fall well outside of the proposed! align-ment of the pipeline, but are calculated to place the pipeline on the proposed alignment. The proposed alignment is shown on this drawing In casess where tho lay-barge posiiion was far enough away from the proposed alignment to cause possible confusion.

4. All platforms as represented on this drawing are not to scale or orienttation. and are schematic only.

5. Since coordinates shown on Ihis drawing are lay-barge positions, lh© lenglhs of the pipelines were laken from the plans. They do not take inlo consideration risers, valves, fittings or olher factors affecting the constmction contractor's pipe tally.

Gertiifldjtlttti!

/, D. E. West, QRe$sieFeidPr&^ UmuiSnrsvyor iu the SUifc offara.r, hereby certify (hat (kU dniwuigacatraU'Jy rcpresmts (heposilikm of (he tuy-bcirge. during constniction of the pipciinfify and of legal boundaries periaimin^ to the pipetincK. 0.L" m±

ZZ F

DEC 2 8 1989

In Reply Hefer To: FO-2-2 (OCS-G 11182)

Seagull Energy E&P Inc. BEST AVAILABLE COPY Attention; Mr, Danny Nasser 1001 Fannin, Suite 1700 Houston, Texas 77002

Gentleaen;

Purauant to the authority granted by *»3 U.S.C, ISS^e) and 30 CFR 250.150

Based OB our analysis of your application, the Baximun allowable operating pressure for this pipeline w i l l be 1,424 psig.

Sincerely,

(Orig. Sgd.) Doug Mcintosh • .

D, J. Bourgeois Regional Supervisor Field Operations

cct Departnent of Transportation 2320 La Branch, Rooa 2116 Houston, Texas 77004 (w/application)

boc: [1502-01 (P/L OCS-G 11182) (w/enclosures) (PC. Faust) (FO-2-2) T502-01 (P/L OCS-G 11182) (FO-2-2) FO-7 LE-5 LE-3-1 (w/receipt) FO-2-2 Carto (w/plat) BESTAVAILABLE COPY

CTi1liams:ds:12/28/89:LEXITTPE

SEAGULL ENERGY E&P INC. A Subsidiary ol Seagull Energy Corporation 1001 Fannin, Suite 1700 • Houston, Texas 77002 • (713) 951 -4700

I R E C O V E D ^

| W0VZ2 1989 FIELD

OPERATIONS J OCs Regio"'

November 20, 1989

United States Department of the Interior Minerals Management Service Gulf of Mexico OCS Regions 1201 Elmwood Park Blvd. New Orleans, LA 70123-2394

Attention: Mr. D. J. Bourgeois Regional Supervisor for Field Operations

Subject: Pipeline Right-of-Way Application Seagull Energy E & P Inc. Proposed 6.625 Inch O.D. Natural Gas Pipeline In and/or Through Blocks Galveston 349 and Galveston 350 Gulf of Mexico, Federal Waters

Gentlemen:

Pursuant to the authority granted in Section 5(e) of the Outer Continental Shelf Lands Act (67 Stat. 462) (43 U.S.C. 1331), as amended (92 Sta. 629), and in compliance with the regulations contained in Title 49 CFR, Part 192, Seagull Energy E & P Inc. is filing this application in quadruplicate for a right-of-way two hundred feet (200') in width for the construction, maintenance and operation of a 6.625 inch O.D. gas/condensate flowline in the Galveston Area, Gulf of Mexico. Seagull Energy E & P Inc. agrees that said right-of-way, if approved, will be subject to the terms and conditions of said regulations.

In support of our application and for your review and use, the following maps, drawings and documents have been enclosed herewith and made a part hereof:

Minerals Management Service Page 2 11/20/89

1. Field Plan

2. Pipeline Profile

3. Safety Flow Schematic

4. Seismic and shallow hazard data along the proposed pipeline route.

5. List of every Lessee or Right-of-Way holder whose Lease or Right-of-Way is intersected by the proposed Pipeline Right-of-Way.

6. Nondiscrimination in Employment form.

7. Letter of No Objection from Walter Oil & Gas Corporation.

Seagull Energy E&P Inc. currently maintains a surety bond in the sum of $300,000 conditioned on compliance with all the terms of the Right-Of-Way Grant. The Bond is Number 057062, executed August 5, 1985 and filed with the MMS on August 15, 1985.

This 6.625 inch O.D. pipeline will be used to transport natural gas and condensate from Seagull's Well Number 1 Platform in Galveston Block 349 to Walter's existing 8.625 inch pipeline in Galveston Block 350. The pipeline will depart Seagull's Well Number 1 Platform in Galveston Block 349 in a south-easterly direction and go 9,210 feet (1.74 miles) to a hot tap on the existing Walter 8.625 inch pipeline in Galveston Block 350, all being in Federal Waters in the Gulf of Mexico, offshore Louisiana. The proposed construction commencement day is late November, 1989, with the time required to lay the pipe being estimated at one week with an overall completion of project time being estimated at one month.

This application (and any amendments made hereto) is made with our full knowledge and concurrence with the OCS Lands Act (43 U.S.C. 1311, et. seq.), as amended (P.L. 95-372), including the following: Sec. 5(e) addressing pipeline rights-of-way, requirements of the Federal Energy Regulatory Commission relating to notice of hearing, transportation and purchase of oil and gas without discrimination; Sec. 5(f) (1) addressing operation of pipelines in accordance with competitive principles, including open and non-discriminatory access to both owner and non-owner shippers; Sec. 5(f) (2) which may allow exemption of the requirements in Sec. 5(f) (1); Sec. 5(e) addressing the assuring of maximum environmental protection, including the safest practices for pipeline installation; and Sec. 5 (f) (1) (B) which may require expansion

1001 Fannin, Suite 1700 • Houston, Texas 77002 •(713)951 -4700

Minerals Management Service Page 3 11/20/89

of throughput capacity of any pipeline except for the Gulf of Mexico or the Santa Barbara Channel.

Additionally, we expressly agree that if any site, structure, or object of historical or archaeological significance should be discovered during the conduct of any operations within the permitted right-of-way, we shall report immediately such findings to the Director, Gulf of Mexico OCS Region, and make every reasonable effort to preserve and protect the cultural resource from damage until said Director has given directions as to its preservation.

In accordance with applicable regulations, we have delivered a copy of the application and attachments thereto by certified mail, return receipt requested, to each lessee or right-of-way or easement holder whose lease, right-of-way or easement is so affected. A list of such lessees or right-of-way or easement holders is attached (see Attachment "V"). A Letter of No Objection from Walter Oil & Gas, who is the Lessee and Right-of-Way holder of Galveston Block 350 is enclosed. The proposed route of the right-of-way does not adjoin or subsequently cross state submerged lands.

Applicant agrees to be bound by the foregoing regulations, and further agrees to comply with the applicable stipulations as set forth in the OCS Pipeline Procedures Guidebook, dated March 1984.

Additional design criteria data is as follows:

1. Water depth along route of proposed pipeline and pipeline in relationship to natural bottom is set forth on attached drawing.

2. The description of the pipe and coating is as follows:

a. Line Pipe

6.625" O.D. x 0.432" W.T., API 5L Gr. B; Weight Bare - 28.57#/Ft. coated with 14 mils thin film epoxy coating.

b. Riser Pipe

6.625" O.D. x 0.432" W.T., API 5L Gr. B;

1001 Fannin. Suite 1700 • Houston, Texas 77002 • (713) 951 -4700

Minerals Management Service Page 4 11/20/89

Weight Bare - 28.57#/Ft. The riser pipe will be coated with zinc, epoxy and polyurethane paint above splash zone; 1/2" Splashtron in splash zone; 14 mils thin film epoxy below the splash zone.

c. Internal Coating

No internal coating is provided. The analysis of the transported products will be monitored and preventive measures such as inhibiting will be employed as necessary.

3. Valves and Flanges

Above water valves and flanges will be ANSI 600# Series with a rated working pressure of 1480 psi.

4. The specific gravity of the product being transported is anticipated to be 0.65 (Air = 1.0), T = 100oF.

5. The pipeline will be protected by nineteen (19) 36 lb. Galvalum III aluminum anodes spaced at 500 feet. The cathodic protection system will have a 20 year minimum life.

6. The design of the proposed pipeline is in accordance with the "Minimum Federal Safety Standards (Department of Transportation) Title 49 CFR Part 192."

7. Maximum Allowable Operating Pressure (MAOP) = 1480 psi

Maximum Capacity: Design Capacity = 30 MMSCFD

Maximum Operating Pressure: High Sensor Setting = 1290 psig

Minimum Operating Pressure: Low Sensor Setting = 960 psig

Calculations;

P = 2 (S) (t) x (F) (E) (T) D

1001 Fannin. Suite 1700 • Houston, Texas 77002 • (713) 951 -4700

Minerals Management Service 11/20/89

Page 5

Where: P = Internal Design Pressure for Steel Pipe (psig). MAOP = Maximum Allowable Operating Pressure S = Specified Minimum Yield Strength (psi) t = Nominal Wall Thickness, in inches D = Nominal Outside Diameter of pipe, in inches (F) = 0.50 for Riser Pipe

0.72 for submerged component (As per Title 49, CFR, Part 192. I l l )

(E)= Longitudinal joint factor, 1.0 for seamless or DSA welded pipe.

(T) = Temperature derating factor, 1.0 for temperature less than 250oF.

a. Riser Pipe

6.625" O.D. x 0.432 W.T. API 5L Gr. B

(1) MAOP (Based on Internal Design Pressure for Steel Pipe)

MAOP = 2 (0.432^ (35.000^ (0.50)(1.0)(1.0) 6.625

= 2282 psig

(2) MAOP (Based on 80 percent of the Hydrostatic Test Pressure)

HTP = 1.5 x Rated Working Pressure = 1.5 (1480) = 2220 psig

HTP will be 2220 psig for 8 hours.

MAOP = 0.80 x HTP = 0.80 (2220) = 1776 psig

(3) MAOP (Based on Intemal Design Pressure of Valves, Flanges and Fittings)

MAOP = 1480 psig

1001 Fannin, Suite 1700 « Houston Texas 77002 o (713) 951 -4700

Minerals Management Service Page 6 11/20/89

b. Line Pipe

6.625" O.D. x 0.432 W.T. Gr. B

(1) MAOP (Based on Internal Design Pressure for Steel Pipe)

MAOP = 2 (0.432̂ (35.000̂ (0.72̂ (1.0̂ (LO) 6.625

= 3286 psig

(2) MAOP (Based on 80 percent of the Hydrostatic Test Pressure)

HTP = 1.25 x Rated Working Pressure

= 1.25 (1480) = 1850 psig (minimum)

HTP will be 2220 psig for 8 hours.

MAOP = 0.80 x HTP = 0.80 (2220) = 1776 psig

(3) MAOP (Based on Internal Design Pressure of Valves, Flanges and Fittings)

MAOP = 1480 psig

8. The producers' facilities at Galveston Block 349 are rated for 1480 psig working pressure.

9. Originally signed copy of Nondiscrimination in Employment Form is attached to each copy of the application.

10. Company contact on technical points or other information:

Seagull Energy E & P Inc. 1001 Fannin, Suite 1700 Houston, Texas 77002

Attention: Mr. Danny Nasser Operations Engineer

1001 Fannin, Suite 1700 • Houston, Texas 77002 o (713) 951 -4700

Minerals Management Service Page 7 11/20/89

A check in the amount of $1,430 of which $1,400 covers the application fee and $30 covers the first year rental on 1.74 miles of right-of way is enclosed.

The field in Galveston Block 349 which supplies the gas for this sales pipeline will be operated from a Seagull shore base located in Freeport, Texas.

Further, Seagull Energy E & P Inc. hereby agrees to keep open at all reasonable times for inspection by the Minerals Management Service, the area covered by this right-of-way and all improvements, structures, and fixtures thereon and all records relative to the design construction, operation, maintenance, and repairs, or investigations on or with regard to such area.

If the above information meets with your approval, we would appreciate your issuing the necessary decision for the right-of-way at your earliest convenience. Inquiries concerning this application should be directed to the applicant at:

Seagull Energy E &P Inc. 1001 Fannin, Suite 1700 Houston, Texas 77002

Attention: Mr. Danny Nasser

Operations Engineer

Respectfully yours,

SEAGULL ENERGY E&P INC.

John D. Carr Attorney-in-Fact

Attachments

1001 Fannin Suite 1700 • Houston, Texas 77002 • (713) 951 -4700

SECTION II

FIELD PLAN

* t ' 1,-;:'-* ,

1 o

OL

i n ID

i n

o ro rO II

X SEAGULL PROD. WELL NO. 1 X=3.295.458.80

IY=346.424.40

PLATFORM

BOTT. OF RISER X=3.295.492.91 Y=346.375.14

PROPOSED 6.625" O.D. SALES PIPELINE 9,210 FEET LONG

Y=340,560.00

-TIE-IN W.P. ^ X=3.302.915.17 Y=341,123.97

BESTAVAILABLE COPY

CQN5EolSP

PERMANENT R.O.W.

15*

IQO*

k-1 15' !

PIPEUNE

NOTES; 1. RIGHT OF WAY AND DESIGN FACTORS COMPLY WITH PART DOI 49 CFR

PART 192. 2. ALL BEARINGS SHOWN ARE TEXAS LAMBERT SOUTH CENTRAL ZONE. 3. PROPOSED PERMANENT RIGHT OF WAY TO BE 30' WIDE.

GALVESTON BLK. 349 TO BLK. 350

CBS ENGINEERING, INC. Houston. Toxaa

SEAGULL ENERGY E&P INC. KSMMD BV

VERDUN CHECMED BY

AITMygD BY

SCM£. r=2000' DAIC. SEPT '89 PROPOSED 6.625" O.D. SALES PIPEUNE

886-01 MCJMl. Oil FIELD PLAN

SECTION III

PIPELINE PROFILE

v.

o II »

O

I

< o

BESTAVAILABLE COPY

GALVESTON BLK. 349 TO BLK. 350

CBS ENGINEERING, INC. Houston, Texas

Q SEAGULL ENERGY E&P INC. DG90NB> BY.

HIAWN BY

CHECKED BY _

VERDUN SCALE.

DAIE _

AS NOTED SEPT '89 PROPOSED 6.625" O.D. SALES PIPELINE 886-01

DWBJia. 012

REV.

PROFILE

SECTION IV

SAFETY FLOW SCHEMATIC

GENERAL NOTES:

1. THE DESIGN CHARACTERISTICS OF THE PROPOSED PIPELINE EQUAL OR EXCEED THE REQUIREMENTS OF DOT 49 CFR. PART 192.

2. WELLHEAD SHUT DOWN VALVES TIED INTO THE PLATFORM ESD SYSTEM AT GALVESTON BLK. 349-1 WILL BE USED TO SHUT-IN THE PLATFORM.

3. PIPEUNE SHALL TRANSPORT GAS AND CONDENSATE.

4. ALL GALVESTON BLK. 349-1 PLATFORM VALVES AND FITTINGS SHALL BE ANSI 600# RF FOR GAS PRODUCTION SERVICE.

5. EXTERNAL PIPEUNE COATING SHALL BE EPOXY.

6. SACRIFICIAL ANODES TO BE 36 LB. MINIMUM WITH A MAXIMUM SPACING OF 500'. ,

7. GALVESTON BLK. 349-1 PLATFORM HI SENSOR WILL BE SET AT 1290 PSIG. LO SENSOR WILL BE SET AT 960 PSIG. PSV WILL BE SET AT 1480 PSIG.

8. PIPEUNE FLOWING PRESSURE IS EXPECTED TO BE AT 1100 PSIG.

X

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.

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PIP

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GR

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in

EXIST. WALTER O & G PIPELINE GALVESTON BLK. 350

SUBSEA TIE-IN

SEAGULL ENERGY E & P . INC. PLATFORM 349-1

GALVESTON BLK. 349-1

BESTAVAILABLE COPY

GALVESTON BLK. 349 TO BLK. 350

CBS ENGINEERING, INC. Houaton, Texts

SEAGULL ENERGY E&P INC.

^ T ^ r ^ M. POERNER CHECKED BY

APPROVED BY

SCAU. NONE DAJE .

PROJ..

NQV.'89 6.625" O.D. SALES PIPELINE 886-01 _Q13.

HEW.

SAFETY FLOW SCHEMATIC

SECTION V

LIST OF LESSEE AND RIGHT-OF-WAY HOLDERS

UST OF LESSEE AND RIGHT-OF-WAY HOLDERS

The following is a List of Lessees and/or Right-of-Way Holders for the proposed pipeline route. The status is as of 1 November 1989.

Galveston Area

Block 349 Seagull Energy E&P Inc. Oil & Gas Lessee

Block 350 Walter Oil & Gas Corporation Walter Oil & Gas Corporation

Oil & Gas Lessee Pipeline Right-Of-Way Holder

A copy of the application has been sent by registered mail to each of the above listed lessees or Right-Of-Way Holders.

SECTION VIII

NONDISCRIMINATION IN EMPLOYMENT FORM

NOTE: This foim must be executed as an original.

UNITED STATES DEPARTMENT OF THE INTERIOR

MINERALS MANAGEMENT SERVICE

NONDISCRIMINATION IN EMPLOYMENT

As a condition precedent to the approval of the granting of the subject pipeline right-of-way, the grantee Seagull Energy E&P Inc. hereby agrees and consents to the following stipulation which is to be incorporated into the application for said right-of-way.

During the performance of this grant the grantee agrees as follows:

During the performance under this grant, the grantee shall fully comply with paragraphs (1) through (7) of section 202 of Ex-ecutive Order 11246, as amended, (reprinted in 41 CFR 60-1.4 (a)), which are for the purpose of preventing discrimination against persons on the basis of race, color, religion, sex or na-tional origin. Paragraphs (1) through (7) of section 202 of Executive Order 11246, as amended, are incorporated in this grant by reference.

^ ^ - 7

Date:

Signature of Grantee

YM 3341-1 (July 1982)

SECTION IX

WALTER OIL & GAS CORPORATION LETTER OF NO OBJECTION

f WALTER OIL & GAS CORPORATION November 14, 1989

Seagull Energy E&P, Inc. 1001 Fannin Street Suite 1700

Houston, Texas 77002

Attention: Mr. Danny Nasser RE: Proposed 6.625" Natural Gas and Condensate Right-of-Way Pipeline

To Be Installed In and/or Through Blocks 349 and 350, Galveston Area, OCS Federal Waters, Gulf of Mexico

Gentlemen:

In reference to the proposed right-of-way pipeline, this letter will confirm that Walter Oil & Gas Corporation (Walter), as designated operator of OCS-G 4721, Galveston Block 350 has no objection to the pipeline routing through Block 350, Galveston Area.

If you should require additional information concerning this matter, please contact Susan Wilson at (713) 659-1222.

Very truly yours,

WALTER OIL & GAS CORPORATION

f. C. Walter, I I I President

:SEW

240 The Main Building, 1212 Main Street, Houston, Texas 77002 (713)659-1221

S - t 15/16'

-RISER GUARD

agrwNMRfcan KEY PLAN N.T.S.

NOTES

1. FOR GENERAL NOTES SEE SHT. 1001.

2. FABRICATOR TO TEST FIT RISER GUARD. RISER GUARD ASSEMBLY IS TO BE SHIPPED LOOSE FOR FIELD INSTALLATION.

3. STABBING GUIDE POST TO BE PAINTED WHITE. SANDBLASTING NOT REOUIRED.

E S S

RELEASES FOR

tnfom

CBmt Appnm*

E3E2 Corabucdon

DATI BY APPt CSS B4QMEB1NQ, NC.

Houston, Texas SEAGULL ENERGY EftP MC

MCP/DLY

, „ M.POERKIER

MTT SEP '88

JUN 'Bl

, 767-91

TJflPOO WBX PROTECTOR

GALVESTOW BIX. 3*9 WELL WO. 1 « T W J .

RISER GUARD DETAILS

1007 •« 0

MPEUNI RIGHT-OF-WAY APPUCATION TNGXNEEKXNG CBECXUSr

1 1 ^ A. Detcription of pipeline and loetdon of propowd roate (UL, rice of pipe, prodaei to be

tnnsported, from where to where, platfonn auaber, atme, block aoaber, act, ad dfe> tance in feet ind miks): (^^^ ^

B. Sifety Flow Schematic • Verify tbat tbe infonnation *own os afety flow Kbematk 1̂1 diapain contains the foflowinf: ,, ' ̂

Presuie soorce k drawn into fbe Kbematk witb (be foDowini:

a. aonrce (Le. name) X 0 ^ ^ ^

b. design workinjpreanii*_

A/

c bifMow presnre sensor stttinp. Z90 /9(oO BESTAVAILABLE COPY

"ANSF ratinp of aD vaKes, flanies, and fittinp betweea 0M soorce and tbe connecting pipeline are shown. Ay\^ (o'OO

Presnre reb'ef raNes, where applicable, are shown widi the settinf set no hifher than the maxknum workinf presure (MWP) of tho eassil.

If the maximum input source presnre is ptater than the maxinnnn allowable operatinf presnre (MAOP) of the pipeline, redundant safety oquipment is

MAOF of prapoMtf pIpeUM dea Mt CUM4 HAOP ef euaacttit ptptttne.

Tbe pipeline leaving tfie platform leceMng production from the platfonn Is equipped with hifMow presnit aenson to dirtctiy or indirtctly shut-in the wefl or well! on the platfonn.

Tbe pipeiine delherinf production to the production facilities on the platfonn is equipped with an automatic fail-close tahe tied into the automatk and itmote shut-in system.

Tbe nipvline crosinf the platfonn which does not delKer production to the plat-fonn. but which may or may not receKe production from ttie platfonn, is tquipped with htgh-tow prvsure senson connrcted to an automatic fafl-close vaKe located in the upstream porlion of the pipeline at the platfonn. In ad-diiion. the senson are tied into cither the platform's automatic and itmote shut-in system or sn independent remote shut-in system.

Tbt pfec&aeksviBi the plitfona k aqaipp^ wiih a cfcack vahe.

11. Ihc hifMow presunt aeaaon oa fhe depstfof pipeBne k located fte chock vahe.

Whiz Where appBeabk, hifMow aenaon art located downftreaa of fte hock itfula

J3./tf there k Bquid injection into fhe Hae, are punpt aaodated with tho Mection? (Yo or No)

Direction of flow bdkated.

ii^fip* ̂ edfkations (Le. rise, grade, weifhu aad waB ftk!

Total length of propoaed pipeBne (feet aad a ia ) .

H/MAOP of connectinf pipdine. 1 4 ? 4

,18./ Statement that desifn meets or exceeds DOT Regulations 192 or 195. a appB-cable, and/or applicabk OCS orden, registered engineer's aaal, registration

ber, date, and signature.

Area and block number of proposed pipelinefrbtfi

20. Cathodk protection spedfkations. BESTAVAILABLE COPY

C Design Information • Verify that fhe pipeline design informatioa ghea hi the appBcation and/oron the data sheet is compkte and correct:

1. Product to be tnnsported:

2. PipeBne, rker, and subsea vahe assba^/^MtMiww.

Ske ki*k2^aD Tbkknes .Weight I (1)

(2) Size

(3) Size

b. Riser:

.WaBTbkknes

.WaBTbkknes

.Grade.

.Grade.

.Weight.

.Weight.

Ibs/fL

Ibs/fL

to/ft.

(nW5 432 ft (I) S ize . WaB Tbkknes ' - ^ L Grade - L l 2^"

.Weight̂ lbs/ft. (2) Size

(3) Size

WaBTbkknes

Wall Tbkknes

c. Subsea vahe asaembly:

(1) Ske WaB Tbkknes

(2) Siie WaQ Tbkknes

.Gnde.

.Grade.

.Grade.

.Grade.

.Weight.

.Weight.

.Weight.

.Weight.

.Ibs/ft.

.lbs/ft.

.lbs/ft.

.Ibs/ft.

4. TVpe of conodoii protirtPBt

a. tapreaed eancal fjAcai

L^bTseeriflcU nodefjrstm

(i) Type «>f^. (jrraUjalum (2) SpsdnfiBtmiJ.

UL .ft.

(3) Weighi of onh anode gKen hy applicant.

If platfonn modes ait oaed. ait they conrideied adeqaate?

es No

d. If pipeline anodes are i

Fonnula: LCp/!• 3.82*IO4!WO/DIR-

Where: W0 • Weight of Anode unit (lbs) D "Dia. of pipe (indies) I • Separation between anodes (ft.) R • the foOowing Ibs/amp/year (Rate of Consumption) Aluminum or CaKahim • 7.6 Zinc •26 Magnesium , - 17J

e expectancy equal or exceed 20 years?

5. Description of protectKe coating:

a. Mpdine K n\\\S ^^y>f

b. Riser ^2 " S^(\&\\roX\

c. Subsea vaKe assembly

Description of weighted coating:

a. Preconntte c o a t i n g — — i

b. Density of concrete

BESTAVAILABLE COPY

.PCF

c. Thickness of concrtte.

d. Tbkknes of asphalf -

7. Calculate the specifk gravity (one of the foDowing formulae may be used)

i.Fottpoxyeottfa|: I C - l M S W ^ /

bu Dtarity conpskon wiih (bid BUtcrW: IC • W*? A

e. lines with a qxcific thk̂ nca of

jC'RC'f /W4P-KC R a - K j ) 2 ^ R

— d. Unas havfaf two eoattap of oaad and a fah vnp. or oaly â hahmastk coating:

SC-W+P

*3

Where: SC • ipecifk gmity RC • density of concntt (Ib/ca. ft) K,.K2,K3« coefficients T • thickness of concnte coating (inches) W « weight of ban pipe (lb/ft) P« weight of coating R • density of fluid material (Ib/cu. ft); sea water • 64 Ibs/cu. ft. D • diameter of pipe (inches) A • cro»-sectional area

8. Given specific gravity K »

^ 9. Cravity or density of productts).

np .Hoi

Pninstallation Test Riser Hold Time \ / hrs.

10, Design cp^iry of pipeline ^ t V \ l ^ 5 c P ^

11. Given Hydrostatk Test Pnssun: line Pipe Hold Time _ L i - hn.

Recommended maximum hydrostatic body test for ANSI vaKes, flanges, and fittinp an as follows:

ANSI 300* 1,100 psig ANSI 400 -1,450 psig ANSI 600 • 2,175 psig

i J J i l t ^ 3 - ^ BESTAVAILABLE COPY

Note: MiafanaB hold

Lb* Pipe-8 hn. Rtser-4hn. (preteet) or DOT 191507(c)

4 hn. €125% of MOP liquid- Phis 4 his. €110% if kek

tioa aot vfcabk tfuriqi Mt

12. Maxiznwn ASowabk Opentinf Pieenit (MAOP) of lhe pipe: .

Note: F-.72;E-1;T-1 MAOF* 2 ft a Fa E»T D

Note: F • .50 for riaen on nafunl pi trananinioo Haes. Note: F-.60 for riienon liquid pipelines.

a. MAOP-

b. MAOP-

14. MAOP of flanps, flninp, and valves:

2.4 x ANSI ntinf • A^Sl (oOO

K .50 =

mo MAOP of proposed pipeline as detennined 195 or 192. ss appUcabk. is

fat accordance with Titk 49 CFR Pan

16. Items 12. 13. and 14 sbove are equal to or non than the maximum allowable workinf pressun (MAWP) of source.

17. Verify: 1:25 maximum soorce pnssun (MSP) < hydrostatk ttst pnssun (HTP) < .95 (smafler IP « SMYS of items 12 or 13 above)

Note: The ncommended limit of test as a percentap of intemal pnssun ? specificed minimum ykld stnnfth fc equal to 95'*:

IP * S M Y S - 2 x » * i -BEST AVAILABLE COPY

.18. Verify MAOP does not exceed the lowest of the foDowinf:

a. Suomerpd components: HTP/l .25 • ^

b. Riser: HTP/1.5-4 ^

i ^ J 9 . VaKcxurdiiad: Y a No.

D. bstalbtiofl

AD pipelina will be btstiSed or kid fo s mbirmun of three fect below fee lerel of the modline oot to and bichidinf the 200 foot water depth, except at pipeline oossinp. Aay deviation nasi bejustified at the tbne of applkatioa.

AS vaKes and taps amst be provided with a aUnhnua of three feet of actnal cover either with sofl or sandbap or Jetted to a minimmn of thiee feet below the mudUne. UJ\mi approved vaKe protection coven an used, fte vaKes and taps an NOT required to have a minimum of three feet of actnal com or Jetted three feet below the mudline. However, fte top of the vaKe protection com shall not protrude above fte level of the modliae. Aay deviation amst bejusti-fled at the time of application.

E. Pipdine Crossinp:

1. All pipdine crossinp ki water depths ap to and tachfinj 200 fact ftaB be ccment-bafged with a minhnum of 18 inches between fte Unes with fte upper* most line having s mfaiimum of J fett of cover ia the form of cement bap in-stalled so as to provide a thne foot horizontd fo a one foot vertkal (3:1) slope with a crown width that k one and one-half (IH) tfcnes fte pipe diameter. Any deviation must be Justifkd at the time of appiicatioa.

,. 2. Ail pipefine crossfaip fai water depths pester ftan 200 fect ftaD be cement baffed with a minimum of 18 faichcs between fte lines and fautaOed so as to provide a thne foot horizontd to a one foot verticd (3:1) dope. Aay deviation must be Justifkd st the tfane of application.

F. Constniction Infonaatioa:

1. Proposed construction coenmencement date

•. 2. Method of coastniction

3. Method of burid

4. Tfane required to hy pipe

S. Tfane required to eoimplete project

C. AppUcant complies with current OCS pipdine guidelines:

Yes No

BESTAVAILABLE COPY

UNITED STATES GOVERNME... MEMORANDUM

To: Regional Supervisor* Field Operations, GOM OCS Region (FO)

From: Regional Supervisor, Leasing and Environment, GOM XS Region (LE)

Subject: National Environmental Policy Act Review for Pipeline Right-of-Way Application XS-G 11182

Our National Environmental Policy Act (NEPA) review of the subject action Is

complete. Environmental protective measure(s)» if any, identified to avoid or

mitigate potential Impacts associated with the action were Included as part of

the NEPA analysis and are shown on the attached Categorical Exclusion Review

(CER).

J, Kenneth Adajus

Attachment

cc : P ipe l ine F i l e XS-G 1 1 1 8 2 (LE-5)

B L J o h n s o n ; j i b

Action No. OCS-6 11182

United States Department of the Interior Minerals Management Service Gulf of Mexico OCS Region

NEPA CATEGORICAL EXCLUSION REVIEW

The Categorical Exclusion Review (CER) evaluated the proposed action and determined that it meets the categorical exclusion criteria as defined by 516 DM 2.3A(1) which states "(a) The action or group of actions would have no significant effect on the quality of the human environment, and (b) The action or group of actions would not involve unresolved conflicts concerning alternative uses of available resources." The analysis of potential impacts by environmental and resource specialists was based on the assumption that the following mitigative measure(s) will be imposed.

Environmental Protective Measures

The following measure was identified in the plan/application by the lessee/operator submitting the proposal:

The applicant will comply with the archaeological stipulation.

The measures identified by MMS during the plan/application review or in the lease stipulation were:

1. The unidentified magnetic anomalies or side-scan sonar contacts listed below may represent archaeological resources. In accordance with NTL No. 75-3 (Revision No. 1, Enclosure No. 3), the applicant will either determine that the potential archaeological resources do not have historic significance, or they will avoid them when conducting proposed activities as indicated by the avoidance criteria below:

Blocks Line No. Shot Point Avoidance Criteria

349 6 6.48 76 m - 7 gammas

2. Our analyses indicate the following as potential hazards to the proposed activities. Therefore, precautions in accordance with NTL No. 83-3, Section IV.B, will be taken prior to conducting operations.

Magnetic Anomalies

Blocks Line No. Shot Point Remarks or Amplitude (gammas)

349 7 15.46 3 gammas 349 8 22.05 8 gammas - on the centerline

Exclusion Determination

The proposed action was evaluated and reviewed against the CER exception criteria defined by 516 DM 2.3.A(3). With inclusion of the above mitigation, it does not represent an exception to the categorical exclusions. Therefore, preparation of an EA is not required.

Date Date /j Chief, Environmental Operati ons Section

I concur,

Leasing and'Environment