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Exploration Company LLC

July 25, 2019

4001 Maple Avenue, Suite 300

Dallas, TX 75219

Phone: 469-276-8262

United States Department ofthe Interior Bureau of Safety and Environmental Enforcement 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394

Attention:

Regarding:

Angie Gobert Pipeline Section (GE 1035A)

him oi Ml) ond taviroms-.tol hicrceffient (BSEE)

R E C E I V E D JUL 29 2019

Office of Field Operations Pipeline Section

Completion Report for Pipeline Decommissioning - Segment No. 18715 6" Bulk Oil ROW Pipeline (ROW OCS-G 29170) Main Pass Block 186, Platform Ato Main Pass Block 265, Platform A OCS Federal Waters, Gulf of Mexico, Offshore, Louisiana

Dear Ms. Gobert:

By letter dated August 30, 2016, Bureau of Safety and Environmental Enforcement granted approval to Tana Exploration Company LLC (Tana) to decommission Segment No. 18175, 6" Bulk Oil ROW Pipeline (ROW OCS-G 29170) Main Pass Block 186, Platform A to Main Pass Block 265, Piatform A.

Please be advised that flushing and decommissioning operations commenced on June 25, 2019 and completed on July 18, 2019 as per the approved permit. The subject pipeline was abandoned in place.

Enclosed please find copies of the anchor verification plot and certification statement. Should you have any questions or require any additional information, please contact undersigned at (281) 698-8521 or at heather.powell(a)iccteam.com.

Sincerely,

Tana Exploration Company LLC

John Petty Vice President - Operations

JP:hp Enclosures

Your report is hereby accepted pursuant to 30 CFR 250.1753. Date:

Stephen P. L/es»auer Regional Supervisor Bureau of Safety and Environmental Enforcement

MP265 AREA DRAWING COMPILED FROM AS-BUILT DRAWINGS, PUBLIC RECORD AND VARIOUS DATABASE SOURCES TRITON PATRIOT ARRIVES ON LOCATION @ 0730 ON 07 /17 /2019

PROPOSED ANCHOR SITES CLEARED VIA MSI OOO MESOTECH, TRITON PATRIOT ON WORKING LOCATION FOR 1045 on 07 /17 /2019 ANCHORS RECOVERED FROM WEST SIDE OF MP265A AS OF 1845 ON 07 /18 /2019

LEGEND:

— i h • x

ANCHORS ON BOTTOM

ANCHORS AS-RECOVERED

NOAA BATHYMETRY

PIPELINE OF INTEREST

BOEM EXISTING PIPELINE

BOEM ABANDON PIPELINE

PLATFORM (NOT TO SCALE)

ABANDONED STRUCTURE

SPHEROID: CLARKE 1866

PROJECTION: LA SOUTH

LAT/LON: NAD27 USFT

DATUM: NAD 27 LAMBERT

Echo))) OFFSHORELLC

36499 Perkins Road Prairieville, Louisiana 70769

Tel: 225-673-2163 Fax: 225-744-3116

MP265A ANCHOR REPOR' M/V TRITON PATRIOT

MAIN PASS AREA BLOCK 265

A PLATFORM S-18715 GULF OF MEXICO

DRAWN BY: WOODROW

DEPTH: 212•

DATE: 07/18/2019

REV. No.: X

CHECKED BY: PRELIW

SCALE: AS-SHOWN

DRAWING REF: 0 7 - 1 8 - 1 9 ANCHOR REPORT 0 * 0

JOB NO.: 19-025-25

MP175

MP186

t N NAD27

LA SOUTH ZONE LAMBERT GRID NORTH

"A"

m

FINAL MP186-A MOORINGS SETUP-1 (HEADING 325°) A N C H O R X C O O R D I N A T I COORDINATE LATITUDE l O N C I I l ' D I HEADING LENGTH

P1 2.950.230 SS' 334,860 71 ' 29"33 , 12 .33rN -- . j 39 :. 279 3' 1 486 9r ,

P2 2,950,769 04' 333,304,86' 29"32'56.802' ,N SS'SO'Sd^l v w 215,0* 1,591 12'

P3 2,951 587 64- 332 195 96' 29 32 45 616-N 88 20 ,25.374'W 188.2' 2 128 03

Pd 2 955 305 79 • i l 61 •; J • 29 32 4? SOrN 88' ZffOS.TNTW . iei y?.

S1 2 951.113 07 • 16 46 • 8 i 29 i 33 , 28 036 , iN B8-20 ,29.481"W 340 2 ' 1 91896

S2 2 952 096 64' 336,590 33" 29-33 ,28.9T3 iN 88 20-18.279-W 9.5 s 1,941 70'

S3 2 B53.667 Tl 335,701 58' 29 33 19.772"N . 0 0 0 •••V'.'V 51.5' 2.143 48'

Sd 2.954.137 36' •-a . r - 29 , 33 , 06 966 i N 88-19-55.858-W 88.5° 2.158 13-

MP186-A MOORINGt > RECOVERED POSITIONS \ ANCHOR X Q KSR D IN A TE CXXJWMK M l H E A D I N G

2 850.841 05 216.2'

2 QS 1 598 84 1 906 92

\ _ SURVEY FEATURES

t ~ ) BOEM / BSEE AVOIDANCE AREA

( £ ) RECOVERED ANCHOR LOCATION

FINAL ANCHOR POSITION

1. NADCOM 2 1 USED FOR CONVERSIONS BETWEEN WGS84 AND NAD27

2 SURVEY PERFORMED ABOARD THE D/B "THOR" ON JUL 1-4,2019.

3 INFORMATION SHOWN IS FROM OCEANEERING INTERNATIONAL. INC.'S DATABASE AND I OR OTHER SOURCES AND MAY NOT DEPICT THEIR ACTUAL LOCATION. OTHER PIPELINES AND HAZARDS MAY EXIST THAT ARE NOT SHOWN. 1,000

U.S. SURVEY FEET ( T - l , 0 0 0 ' )

PREPARED FOR

TANA EXPLORATION

SHORE mmtmim OfFSHORE SERVICES. LLC.

FINAL MOORING MAP (Setup 1)

"A" Platform (Removed) Block 186

Main Pass Area

PREPARED BY. (OCEANEERING)

OCEANEERING INTERNATIONAL INC 730 E KALISTE SALOOM R0

LAFAYETTE, LA 70508 (337) 210-0000 LA Reg No 747

JOB: 199171

CKD: EJB

DRW: MCM

APP:

DOC: 199171-OII-DRW-DET-015-01

DATE: JULY 10, 2019

SHEET 1 o f l

TANA Exploration Company LLC

4001 Maple Avenue, Suite 300

Dallas, TX 75219

Phone: 469-276-8262

PIPELINE DECOMMISSIONING

SegmentNo. 18715 6" Bulk Oil Right-of-Way Pipeline

Main Pass Block 186, Platform A to Main Pass Block 265, Platform A

CERTIFICATION STATEMENT

Tana Exploration Company LLC (Tana) hereby certifies that Segment No. 18715 was decommissioned in accordance to the approved application dated August 30, 2016.

Tana Representative: _Keith Koen ^ . . g; ; -

Title: Consultant

Date: 07/19/25019