UNITED STATES GOVERNMENT MEMORANDUM

To: Public Information (MS 5030)

Plans Section, Office of Field Operations (MS 5231)

Public Information copy of Exploration Plan

Control # - S-07692

Type - Supplemental Exploration Plan

Lease(s) - OCS-G18194 Block - 126 Mississippi Canyon Area OCS-G19925 Block - 127 Mississippi Canyon Area

Operator - Freeport-McMoRan Oil & Gas LLC

Wells A, B, C, and D

%SJMMTIJQ

Attached is a copy of the subject plan for public comments on issues that

should be addressed in an Environmental Assessment.

It has been deemed submitted as of this date and is under review for approval.

Chiquita Hill

Plan Coordinator Description -

Rig Type - Subject: From: October 3, 2014

### Record of Changes-PUBLIC INFORMATION COPY S-7692, Exploration Plan, Freeport-McMoRan Oil Gas LLC, (OCS-G 18194 (MC 126) / G-19925 (MC 127)

Date Section Page Remarks
7/22/2014 All All Plan received by BOEM
9/4/2014 6 Attachment 6-A Cuttings wetted with SBF projected amount amended; Well treatment, completion and

workover fluids waste added.

### PUBLIC COPY

J uly 21

, 2 014 September 4, 2014



# SUPPLEMENTAL

EXPLORATION PLAN

Mississippi Canyon Blocks 126/127
OCS

- G 18194/19925 Prospect Name : Horn Mountain Deep
Affected State s : Alabama, Louisiana

Estimated Startup Date: July 1 , 201 5

SUBMITTED BY : Freepor t

- McMoRan Oil & Gas LLC 400 E. Kaliste Saloom, Suite 1100 Lafayette, Louisiana 70508

Paul Landry
Of fice : 337

- 354

- 5065 , Cell: 337

- 349

- 7781 paul_landry@fmi.com

AUTHORIZED REPRES ENTATIVE:
Jean Martin/Callie Hutchinson J. Connor Consulting, Inc.

16225 Park T en Place, Suite 700 Houston, Texas 77084 (281) 578

- 3388 jean.martin@jccteam.com callie.hutchinson@jccteam.com

### TOC Pg. 1 of 3 

## TABLE OF CONTENTS

SECTION 1 PLAN CONTENTS

................................ ................................ ..................... 1

1.1 PLAN INFORMATION

................................ ................................ ............................ 1

1.2 LOCATION

................................ ................................ ................................ ............. 1

1.3 SAFETY AND POLLUTION PREVENTION FEATURES

................................ ....... 1

1.4 STORAGE TANKS AND PRODUCTION VESSELS

................................ .............. 2

1.5 POLLUTION PREVENTION MEASURES

................................ ............................. 3

1.6 ADDITIONAL MEASURES

................................ ................................ .................... 3

1.7 COST RECOVERY FEE

................................ ................................ ........................ 3

SECTION 2 GENERAL INFORMATION

................................ ................................ ........ 4

2.1 APPLICATIONS AND PERMITS

................................ ................................ ........... 4

2.2 DRILLING FLUIDS

................................ ................................ ................................ . 4

2.3 NEW OR UNUSUAL TECHNOLOGY

................................ ................................ .... 4

2.4 BONDING STATEMENT

................................ ................................ ........................ 4

2.5 OIL SPILL FINANCIAL RESPONSIBILITY (OSFR)

................................ ............... 4

2.6 DEEPWATER WELL CONTROL STATEMENT

................................ .................... 5

2.7 BLOWOUT SCENARIO AND WORST CASE DISCHARGE CALCULATIONS

..... 5

SECTION 3 GEOLOGICAL AND GEOPHYSICAL INFORMATION

............................. 9

3.1 GEOLOGICAL DESCRIPTION

................................ ................................ .............. 9

3.2 ST RUCTURE CONTOUR MAP

................................ ................................ ............. 9

3.4 GEOLOGICAL STRUCTURE CROSS

- SECTIONS

................................ ............... 9

3.5 SHALLOW HAZARDS REPORT

................................ ................................ ........... 9

3.6 SHALLOW HAZARDS ASSESSMENT

................................ ................................ .. 9

3.7 HIGH

- RESOLUTION SEISMIC LINES

................................ ................................ ... 9

3.8 STRATIGRAPHIC COLUMN

................................ ................................ ................. 9

SECTION 4 HYDROGEN SULFIDE INFORMATION

................................ ................... 10

4.1 CONCENTRATION

................................ ................................ .............................. 10

4.2 CLASSIFICATION

................................ ................................ ............................... 10

### TOC Pg. 2 of 3 SECTION 5 BIO LOGICAL, PHYSICAL AND SOCIOECONOMIC INFORMATION

.... 11

5.1 DEEPWATER BENTHIC COMMUNITIES

................................ ........................... 11

5.2 TOPOGRAPHIC FEATURES (BANKS)

................................ ............................... 11

5.3 TOPOGRAPHIC FEATURES STATEMENT (SHUNTING)

................................ .. 11

5.4 LIVE BOTTOMS (PINNACLE TREND FEATURES)

................................ ............ 11

5.6 POTENTIALLY SENSITIVE BIOLOGICAL FEATURES MAP

.............................. 11

5.8 THREATENED AND ENDANGERED SPECIES, CRITICAL HABITAT, AND

MARINE MAMMAL INFORMATION

................................ ................................ .... 12

5.9 ARCHAEOLOGICAL REPORT

................................ ................................ ............ 13

5.10 AIR AND WATER QUALITY INFORMATION

................................ .................... 14

5.11 SOCIOECONOMIC INFORMATION

................................ ................................ .. 14

SECTION 6 WASTES AND DISCHARGES INFORMATION

................................ ...... 15

6.1 PROJECTED GENERATED WASTES

................................ ................................ 15

6.2 MODELING REPORT

................................ ................................ .......................... 15

SECTION 7 A IR EMISSIONS INFORMATION

................................ ............................ 16

7.1 EMISSIONS WORKSHEETS AND SCREENING QUESTIONS

.......................... 16

7.2 SUMMARY INFORMATION

................................ ................................ ................. 16

SECTION 8 OIL SPILL INFORMATION

................................ ................................ ...... 17

8.1 OIL SPILL RESPONSE PLANNING

................................ ................................ .... 17

8.2 SPILL RESPONSE SITES

................................ ................................ ................... 17

8.3 OSRO INFORMATION

................................ ................................ ........................ 17

8.4 WORST CASE SCENARIO DETERMINATION

................................ ................... 18

8.5 OIL SPILL RESPONSE DISCUSSION

................................ ................................ 19

SECTION 9 ENVIRONMENTAL MONITORING INFORMATION

................................ 20

9.1 MONITORING SYSTEMS

................................ ................................ .................... 20

9.2 INCIDENTAL TAKES

................................ ................................ ........................... 20

9.3 FLOWER G ARDEN BANKS NATIONAL MARINE SANCTUARY

....................... 20

SECTION 10 LEASE STIPULATIONS INFORMATION

................................ .............. 21

10.1 MARINE PROTECTED SPECIES

................................ ................................ ..... 21

SECTION 11 ENVIRONMENTAL MITIGATION MEASURES INFORMATION

........... 23

11.1 MEASURES TAKEN TO AVOID, MINIMIZE, AND MITIGATE IMPACTS

.......... 23

### TOC Pg. 3 of 3 11.2 INCIDENTAL TAKES

................................ ................................ ......................... 23

SECTION 12 SUPPORT VESSELS AND AIRCRAFT INFORMATION

...................... 24

12.1 GENERAL

................................ ................................ ................................ .......... 24

12.3 DRILLING FLUID TRANSPORTATION

................................ ............................. 24

12.4 SOLID AND LIQUID WASTE TRANSPORTATION

................................ ........... 24

12.5 VICINITY MAP

................................ ................................ ................................ ... 24

SECTION 13 ONSHORE SUPPORT FACILITIES INFORMATION

............................ 26

13.1 GENERAL

................................ ................................ ................................ .......... 26

13.2 SUPPORT BASE CONSTRUCTION OR EXPANSION

................................ ..... 26

13.3 SUPPORT BASE CONSTRUCTION OR EXPANSION TIMETABLE

................ 26

13.4 WASTE DISPOSAL

................................ ................................ ........................... 26

SECTION 14 COASTAL ZONE MANAGEMENT ACT (CZMA) INFORMATION

........ 27

SECTION 15 ENVIRONMENTAL IMPACT ANALYSIS

................................ .............. 30

SECTION 16 ADMINISTRATIVE INFORMATION

................................ ....................... 31

16.1 EXEMPTED INFORMATION DESCRIPTION

................................ .................... 31

16.2 BIBLIOGRAPHY

................................ ................................ ................................ 31

### Attachments Pg. 1 of 1 SECTION ATTACHMENTS

Section 1 Plan Contents

1

- A OCS Plan Information Form

1

- B Well Location Plat

1

- C Bathymetry Map

1

- D Pay.gov Receipt

Section 3 Geological, Geophysical Information

3

- D Shallow Hazard Assessment

Section 5 Biological, Physical and Socioeconomic Information

5

- A Biologically Sensitive Underwater Features and Areas Map

Section 6 Wastes and Discharges Information

6

- A Wastes You Will Generate, Treat and Downhole Dispose or Discharge to the GOM

Section 7 Air Emissions Information

7

- A Emissions Worksheets
Section 8 Oil Spill Information

8

- A Oil Spill Response Discussion

Section 12 Support Vessels and Aircraft Information

12

- A Waste You Will Transport and/or Dispose Onshore

12

- B Vicinity Map

Section 14 Coastal Zone Management Act Information

14

- A Coastal Zone Consistency Certifications

– Louisiana

14

- B Coastal Zone Consistency Certifications

– Alabama
Section 15 Environmental Impact Analysis (EIA)

15

- A Environmental Impact Analysis (EIA)

### Freeport

- McMoRan Oil & Gas LLC Section 1

– Pg. 1 of 31 Supplemental Exploration Plan July, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 1

PLAN CONTENTS

1.1 PLAN INFORMATION

Under this Supplemental Exploration Plan, Freeport

- McMoRan Oil & Gas LLC (FM O&G) , as designated operator of Mississippi Canyon Blocks 126 and 127, proposes to drill, test, complete, flare, and install subsea trees on Well Location A

– D using a dynamically positioned drillship similar to the Transocean Deepwater Champion

.

Thirteen (13) wells have been drilled in Mississippi Canyon Blocks 126 and 127, under
Initial Exploration Plan N

- 6208, approved November 30, 1998, a nd Initial Development Operations Coordination Document N

- 7195, approved on February 21, 2002. Ten (10) of these wells are completed, two (2) are temporarily abandoned and one (1) is
permanently abandoned.

The OCS Plan Information Form BOEM

- 137 is include d as Attachment 1

- A

.

1.2 LOCATION

A Well Location Plat depicting the proposed surface and bottom hole locations of the
proposed wells measured depth/t rue vertical depth and water depth for each location is

included as Attachment 1

- B

.

No anchors are associated with the proposed activities in this plan.

A Bathymetry Map depicting the proposed surface locations and water depth of each
proposed well is included as Attachment 1

- C

.

1.3 SAFETY AND POLLUTION PREVENTION FEATURES

FM O&G proposes to drill the well s with a dynamically positioned drillship which is
equipped with a Subsea BOP . O nce a rig is contracted, BOP information and
schematics will be included as a part of the Application for Permit to Drill.

The rig will be equipped with safety and fire

- fi ghting equipment required to comply with United States Coast Guard (USCG) regulations. Appropriate life saving equipment such as life rafts, life jackets, ring buoys, etc. as prescribed by the USCG, will be maintained
on the rig at all times.

Safety featu res on the drilling unit will include well control, pollution prevention, and blowout prevention equipment as described in BSEE regulations 30 CFR 250 C, D, E, O, Q and S; and as further clarified by BSEE Notices to Lessees, and current policy

### Freeport

- McMoRan Oil & Gas LLC Section 1

– Pg. 2 of 31 Supplemental Exploration Plan July, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) making invok ed by the BSEE, Environmental Protection Agency and the U.S. Coast

Guard (USCG)

.

Pollution prevention measures include installation of curbs, gutters, drip pans, and drains on drilling deck areas to collect all contaminants and debris. Compliance will be

maintained with the EPA NPDES Permit

. The rig will be monitored daily and any waste or fuel resulting in pollution of the Gulf waters will be reported to the representative in charge for immediate isolation and correction of the problem. Any spill will be reported
to the appropriate governmental agencies.

1.4 STORAGE TANKS AND PRODUCTION VESSELS Only includes storage tanks with capacity of 25 barrels or more that will store fuels, oil

and lubricants

. Type of Storage Tank Type of Facility Tank Capacity

( bbls) Number
of

Tanks Total Capacity

(bbls) Fluid Gravity

(API)

Fuel Oil DPDS 4,135.6 2 8,271.2 3 3 °

Fuel Oil DPDS 9,340.4 2 18,680.8 33°

Fuel Oil DPDS 9,048.5 1 9,048.5 33°

Fuel Oil DPDS 9,043.5 1 9,043.5 33°

Fuel Oil DPDS 445.3 2 830.6 33°

Fuel Oil DPDS 320.2 2 640.3 33°

Fuel Oil DPDS 359.8 1 359.8 33°

Fuel Oil DPDS 435.3 1 435.3 33°

Fuel Oil DPDS 59.8 1 59.8 33°

Base Oil DPDS 3,683.9 1 3,683.9 3 1 °

Base Oil DPDS 3,687.1 1 3,687.1 3 1 °

Lube Oil DPDS 429.6 1 429.6 22.3 °

Waste Oil DPDS 132.1 1 132.1 20 °

Waste Oil DPDS 44 1 44 20°

Waste Oil DPDS 143.4 1 143.4 20°

Waste Oil DPDS 1,366.2 1 1,366.2 6.5 °

### Freeport

- McMoRan Oil & Gas LLC Section 1

– Pg. 3 of 31 Supplemental Exploration Plan July, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 1.5 POLLUTION PREVENTION MEASURES These operations do not propose activities for which the State of Florida is an affected

state.

1.6 ADDITIONAL MEASURES

FM O&G does not propose any additional safety, pollution prevention, or early spill detection measures beyond those required by 30 CFR 250.

1.7 COST RECOVERY FE E Documentation of the $14,692 cost recovery fee payment is included as Attachment 1

- D

.

### U.S. Department of the Interior Bureau of Ocean Energy Management

Have you previously provided information to verify the calculations and assumptions for your WCD? Yes X No

If so, provide the Control Number of the EP or DOCD with which this information was provided

Do you propose to use new or unusual technology to conduct your activities? Yes X No

Do you propose to use a vessel with anchors to install or modify a structure? Yes X No

Do you propose any facility that will serve as a host facility for deepwater subsea development? Yes X No



### Description of Proposed Activates and Tentative Schedule (Mark all that apply)

Proposed Activity Start Date End Date No. of Days

Drill, test, complete, flare and install subsea tree Well Location A 9/16/2015 1/14/2016 120

Drill, test, complete, flare and install subsea tree Well Location B 12/25/2015 5/13/2016 140

Drill, test, complete, flare and install subsea tree Well Location C 4/3/2016 8/1/2016 120

Drill, test, complete, flare and install subsea tree Well Location D 7/1/2015 10/29/2015 120



### Description of Drilling Rig Description of Structure

Jackup X Drillship Caisson Tension leg platform

Gorilla Jackup Platform rig Fixed platform Compliant tower

Semisubmersible Submersible Spar Guyed tower

DP Semisubmersible Other (Attach description) Floating production
system Other (Attach description) Drilling Rig Name (If known): Two drillships similar to the Deepwater Champion



### Description of Lease Term Pipelines

From (Facility/Area/Block) To (Facility/Area/Block) Diameter (Inches) Length (Feet)



### Form BOEM

- 0137 (December 2011

– Supersedes all previous editions of this form which may not be used.) Page 1 of 4 

### General Information

Type of OCS Plan: X Exploration Plan (EP) Development Operations Coordination Document (DOCD)

Company Name: Freeport

- McMoRan Oil & Gas LLC BOEM Operator Number: 03280

Address: 400 E. Kaliste Saloom, Suite 1100 Lafayette, LA 70508 Contact Person: Paul Landry

Phone Number: (Office) 337

- 354

- 5065 , (mobile) 337

- 349

- 7781

E

- Mail Address: paul_landry@fmi.com

If a service fee is required under 30 CFR 550.125(a), provide the Amount paid $14,692 Receipt No. 74641577990



### Project and Worst Case Discharge (WCD) Information

Lease(s): OCS

- G 18194/19925 Area: Mississippi Canyon Block(s) 126/127 Project Name (If Applicable): Horn Mountain Deep

Objective(s) X Oil Gas Sulphur Salt Onshore Support Base(s): Fourchon, LA

Platform / Well Name: Well Location C Total Volume of WCD: 159, 062 bbls API Gravity: 34.5°

Distance to Closest Land (Miles): 62.0 miles Volume from uncontrolled blowout: 19,087

, 440 bbls 

### OCS PLAN INFORMATION FORM OMB Control Number: 1010

- 0151 OMB Approval Expires: 12/31/14OCS PLAN INFORMATION FORM (CONTINUED) Include one copy of this page for each proposed well/structure



### Proposed Well/Structure Location

Well or Structure Name/Number (If renaming well or structure, reference previous name): A Previously reviewed under an approved EP or DOCD? Yes X No

Is this an existing well or

structure? Yes X No If this is an existing well or structure, list the Complex ID

or API No. Is this an existing well or structure? No

Do you plan to use a subsea BOP or a surface BOP on a floating facility to conduct your proposed activities? X Yes No

WCD Info For wells, volume of uncontrolled blowout (Bbls/Day): 159,062 For structures, volume of all storage and pipelines (Bbls) : N/A API Gravity of fluid 34.5 °

Surface Location Bottom

- Hole Location (For Wells) Completion (For multiple completions, enter separate lines)

Lease No. OCS

- G 19925 OCS

- G 19925 OCS

OCS

Area Name Mississippi Canyon Mississippi Canyon

Block No. 127 127

Blockline Departures (in feet) N/S Departure 4,260.00 ’ FSL N/S Departure N/S Departure F __ L N/S Departure F __ L N/S Departure F __ L

E/W Departure 7,475.00 ’ FWL E/W Departure E/W Departure F __ L E/W Departure F __ L E/W Departure F __ L

Lambert X

- Y

coordinates X: 1,306,355.00 X: X:

X:

X:

Y: 10,474,500.00 Y: Y:

Y:

Y:

Latitude/ Longitude Latitude 28°51'32.3157"N Latitude Latitude

Latitude

Latitude

Longitude 88°02'38.1761"W Longitude Longitude Longitude Longitude

Water Depth (Feet): 5,466' MD (Feet): TVD (Feet): MD (Feet): MD (Feet): MD (Feet): TVD (Feet): TVD (Feet): TVD (Feet): Anchor Radius (if applicable) in feet: NA

Anchor Locations for Drilling Rig or Construction Barge (If anchor radius supplied above, not necessary)

Anchor Name or No. Area Block X Coordinate Y Coordinate Length of Anchor Chain on Seafloor

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:



### Form BOEM

- 0137 (December 2011

– Supersedes all previous editions of this form which may not be used.) Page 2 of 4OCS PLAN INFORMATION FORM (CONTINUED) Include one copy of this page for each proposed well/structure



### Proposed Well/Structure Location

Well or Structure Name/Number (If renaming well or structure, reference previous name): B Previously reviewed under an approved EP or DOCD? Yes X No

Is this an existing well or structure? Yes X No If this is an existing well or structure, list the Complex ID

or API No. Is this an existing well or structure? No

Do you plan to use a subsea BOP or a surface BOP on a floating facility to conduct your proposed activities? X Yes No

WCD Info For wells, volume of uncontrolled blowout (Bbls/Day): 159,062 For structures, volume of all storage and pipelines (Bbls): N/A API Gravity of fluid 34.5 °

Surface Location Bottom

- Hole Location (For Wells) Completion (For multiple completions, enter separate lines)

Lease No. OCS

- G 19925 OCS

- G 19925 OCS

OCS

Area Name Mississippi Canyon Mississippi Canyon

Block No. 127 127

Blockline Departures (in feet) N/S Departure 4,237.00 ’ FSL N/S Departure N/S Departure F __ L N/S Departure F __ L N/S Departure F __ L

E/W Departure 7,334.00 ’ FWL E/W Departure E/W Departure F __ L E/W Departure F __ L E/W Departure F __ L

Lambert X

- Y

coordinates X: 1,306,214.00 X: X:

X:

X:

Y: 10,474,477.00 Y: Y:

Y:

Y:

Latitude/ Longitude Latitude 28°51'32.0756"N Latitude Latitude

Latitude

Latitude

Longitude 88°02'39.7599"W Longitude Longitude Longitude Longitude

Water Depth (Feet): 5,467' MD (Feet): TVD (Feet): MD (Feet): MD (Feet): MD (Feet): TVD (Feet): TVD (Feet): TVD (Feet): Anchor Radius (if applicable) in feet: NA

Anchor Locations for Drilling Rig or Construction Barge (If anchor radius supplied above, not necessary)

Anchor Name or No. Area Block X Coordinate Y Coordinate Length of Anchor Chain on Seafloor

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:



### Form BOEM

- 0137 (December 2011

– Supersedes all previous editions of this form which may not be used.) Page 2 of 4OCS PLAN INFORMATION FORM (CONTINUED) Include one copy of this page for each proposed well/structure



### Proposed Well/Structure Location

Well or Structure Name/Number (If renaming well or structure, reference previous name): C Previously reviewed under an approved EP or DOCD? Yes X No

Is this an existing well or

structure? Yes X No If this is an existing well or structure, list the Complex ID

or API No. Is this an existing well or structure? No

Do you plan to use a subsea BOP or a surface BOP on a floating facility to conduct your proposed activities? X Yes No

WCD Info For wells, volume of uncontrolled blowout (Bbls/Day): 159,062 For structures, volume of all storage and pipelines (Bbls): N/A API Gravity of fluid 34.5°

Surface Location Bottom

- Hole Location (For Wells) Completion (For multiple completions, enter separate lines)

Lease No. OCS

- G 19925 OCS

- G 19925 OCS

OCS

Area Name Mississippi Canyon Mississippi Canyon

Block No. 127 127

Blockline Departures (in feet) N/S Departure 1,460.00 ’ FSL N/S Departure N/S Departure F __ L N/S Departure F __ L N/S Departure F __ L

E/W Departure 5,160.00 ’ FWL E/W Departure E/W Departure F __ L E/W Departure F __ L E/W Departure F __ L

Lambert X

- Y

coordinates X: 1,304,040.00 X: X:

X:

X:

Y: 10,471,700.00 Y: Y:

Y:

Y:

Latitude/ Longitude Latitude 28°51'04.3851"N Latitude Latitude

Latitude

Latitude

Longitude 88°03'03.9373"W Longitude Longitude Longitude Longitude

Water Depth (Feet): 5,509' MD (Feet): TVD (Feet): MD (Feet): MD (Feet): MD (Feet): TVD (Feet): TVD (Feet): TVD (Feet): Anchor Radius (if applicable) in feet: NA

Anchor Locations for Drilling Rig or Construction Barge (If anchor radius supplied above, not necessary)

Anchor Name or No. Area Block X Coordinate Y Coordinate Length of Anchor Chain on Seafloor

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:



### Form BOEM

- 0137 (December 2011

– Supersedes all previous editions of this form which may not be used.) Page 2 of 4OCS PLAN INFORMATION FORM (CONTINUED) Include one copy of this page for each proposed well/structure



### Proposed Well/Structure Location

Well or Structure Name/Number (If renaming well or structure, reference previous name): D Previously reviewed under an approved EP or DOCD? Yes X No

Is this an existing well or structure? Yes X No If this is an existing well or structure, list the Complex ID

or API No. Is this an existing well or structure?

Do you plan to use a subsea BOP or a surface BOP on a floating facility to conduct your proposed activities? X Yes No

WCD Info For wells, volume of uncontrolled blowout (Bbls/Day): 159,062 For structures, volume of all storage and pipelines (Bbls): N/A API Gravity of fluid 34.5°

Surface Location Bottom

- Hole Location (For Wells) Completion (For multiple completions, enter separate lines)

Lease No. OCS

- G 1 8194 OCS

- G 1 8194 OCS

OCS

Area Name Mississippi Canyon Mississippi Canyon

Block No. 12 6 12 6

Blockline Departures (in feet) N/S Departure 2.779.00’ F N L N/S Departure N/S Departure F __ L N/S Departure F __ L N/S Departure F __ L

E/W Departure 6,846 .00 ’ FE L E/W Departur e E/W Departure F __ L E/W Departure F __ L E/W Departure F __ L

Lambert X

- Y

coordinates X: 1,292,034.00 X: X:

X:

X:

Y: 10,48 3,301.00 Y: Y:

Y:

Y:

Latitude/ Longitude Latitude 28°5 2 ' 58

. 19623 "N Latitude Latitude

Latitude

Latitude

Longitude 88°0 5 ' 20

. 17169 "W Longitude Longitude Longitude Longitude

Water Depth (Feet): 4,526 ' MD (Feet): TVD (Feet): MD (Feet): MD (Feet): MD (Feet): TVD (Feet): TVD (Feet): TVD (Feet): Anchor Radius (if applicable) in feet: NA

Anchor Locations for Drilling Rig or Construction Barge (If anchor radius supplied above, not necessary)

Anchor Name or No. Area Block X Coordinate Y Coordinate Length of Anchor Chain on Seafloor

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:

X: Y:



### Form BOEM

- 0137 (December 2011

– Supersedes all previous editions of this form which may not be used.) Page 2 of 4HHHHHHHHHHH"!.!.!.

FM (SN-13359) 10" GAS (ACT)

F M ( S N

- 1 3 3 6 0 ) 1 2 " O IL ( A C T )MC 127OCS-G-19925Freeport-McMoRan Oil & Gas LLCFREEPORT-MCMORAN #2 (G19925)FREEPORT-MCMORAN #1 (G19925)FREEPORT-MCMORAN #A001-A003,A005, A007-A010 (G19925)FREEPORT-MCMORAN #A004 & A006 (G18194)A (HORN MOUNTAIN)B SLC SLA SL

B P ( S N

- 1 7 8 5 1 ) 2 " S E R V ( A

C

T

) 88°2'0"W

88°3'0"W

88°4'0"W28°53'0"N28°52'0"N28°51'0"N

1,300,000 1,305,000 1,310,00010,475,00010,480,000!.PROPOSED WELL LOCATIONEXISTING PIPELINE OR CABLELOCATION, AS REPORTED BY BOEM."EXISTING PLATFORM LOCATION,AS REPORTED BY BOEM.HEXISTING WELL LOCATION,AS REPORTED BY BOEM.**FREEPORT-MCMORAN OIL & GAS LLC** ATTACHMENT CFIGURE 1WELL LOCATION PLATPUBLIC COPYWELLS A, B AND CBLOCK 127OCS-G 19925MISSISSIPPI CANYON AREAGULF OF MEXICOJOB NO.: 0514-2387DATE: 24 JUNE 2014DATUM: NAD 27PROJECTION: UTMZONE 160 1,000 2,0005001 inch = 2,000 feet1:24,000Proposed Locations- MC 127GRIDNORTHLocation Call E/W Call N/S X Coordinate Y Coordinate Latitude Longitude WDA SL 7,475.00 FWL 4,260.00 FSL 1,306,355.00 10,474,500.00 28° 51' 32.3157" N 88° 02' 38.1761" W -5,466'B SL 7,334.00 FWL 4,237.00 FSL 1,306,214.00 10,474,477.00 28° 51' 32.0756" N 88° 02' 39.7599" W -5,467'C SL 5,160.00 FWL 1,460.00 FSL 1,304,040.00 10,471,700.00 28° 51' 04.3851" N 88° 03' 03.9373" W -5,509'HHH!.FREEPORT-MCMORAN #5 (G18194)FREEPORT-MCMORAN #4 (G24044)FREEPORT-MCMORAN #1 (G18194)MC 126OCS-G-18194Freeport-McMoRan Oil & Gas LLCMC 82OCS-G-35313Freeport-McMoRan Oil & Gas LLC MC 83 Open
MC 127 OCS-G-19925 Freeport-McMoRan Oil & Gas LLCMC 126-D 88°4'0"W

88°5'0"W

88°6'0"W28°54'0"N28°53'0"N28°52'0"N

1,285,000 1,290,000 1,295,000 1,300,00010,480,00010,485,00010,490,000HEXISTING WELL LOCATION,AS REPORTED BY BOEM.**FREEPORT-MCMORAN OIL & GAS LLC** ATTACHMENT CFIGURE 1WELL LOCATION PLATPUBLIC COPYWELL DBLOCK 126OCS-G 18194MISSISSIPPI CANYON AREAGULF OF MEXICOJOB NO.: 0514-2387DATE: 11 JUNE 2014DATUM: NAD 27PROJECTION: UTMZONE 160 1,000 2,0005001 inch = 2,000 feet1:24,000Proposed Location- MC 126GRIDNORTHLocation Call E/W Call N/S X Coordinate Y Coordinate Latitude Longitude WDD SL 6,846.00' FEL 2,779.00' FNL 1,292,034.00 10,483,301.00 28° 52' 58.19623" N 88° 05' 20.17169" W -4,526'

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OCS-G-19925 Plains Exploration & Production Company PLAINS #2 (G19925)

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28°51'30"N

28°51'0"N1,305,0001,307,5001,310,000

10,472,500 10,475,000 10,477,500

3D SURVEY LINE.

C & C 2013 AUV SURVEY.

EXISTING PIPELINE OR CABLE LOCATION, AS REPORTED BY BOEM. 

# H EXISTING WELL LOCATION AS REPORTED BY BOEM. 

# ! . PROPOSED WELL LOCATION

CIRCLE REPRESENTS 2000 FT RADIUS
AROUND PROPOSED WELLSITE.

WATER DEPTH CONTOUR IN FEET.
CONTOUR INTERVAL = 10 FOOT. 

### PLAINS EXPLORATION

& PRODUCTION COMPANY



## BATHYMETRY MAP

"HORN MOUNTAIN PROSPECT"

BLOCK 127

MISSISSIPPI CANYON AREA

GULF OF MEXICO

MAP NO. MC 127-A-1 0 1,000 2,000 500 Feet

DATE: 14 NOVEMBER 2013 FILE NAME: 2235_MC127-A-1_Bathy.mxd
PROJECT NO.:0413-2235 G RID N ORTH

NOTE: BATHYMETRY CONTOURS GENERATE D FROM MULTIBEAM BATHYMETRY DATA,
SUPPLEMENTED IN AUV SURVEY GA PS WITH THE 3-D DATA SET.

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28°51'0"N1,305,0001,307,5001,310,000

10,472,500 10,475,000 10,477,500

3D SURVEY LINE.

C & C 2013 AUV SURVEY.

EXISTING PIPELINE OR CABLE LOCATION, AS REPORTED BY BOEM. 

# H EXISTING WELL LOCATION AS REPORTED BY BOEM. 

# ! . PROPOSED WELL LOCATION

CIRCLE REPRESENTS 2000 FT RADIUS
AROUND PROPOSED WELLSITE.

WATER DEPTH CONTOUR IN FEET.
CONTOUR INTERVAL = 10 FOOT. 

### PLAINS EXPLORATION

& PRODUCTION COMPANY



## BATHYMETRY MAP

"HORN MOUNTAIN PROSPECT"

BLOCK 127

MISSISSIPPI CANYON AREA

GULF OF MEXICO

MAP NO. MC 127-B-1 0 1,000 2,000 500 Feet

DATE: 14 NOVEMBER 2013 FILE NAME: 2235_MC127-B-1_Bathy.mxd
PROJECT NO.:0413-2235 G RID N ORTH

NOTE: BATHYMETRY CONTOURS GENERATE D FROM MULTIBEAM BATHYMETRY DATA,
SUPPLEMENTED IN AUV SURVEY GA PS WITH THE 3-D DATA SET.

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OCS-G-34428 Apache Deepwater LLC 

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MC 127-C88°2'30"W88°3'0"W88°3'30"W 28°51'30"N

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28°50'30"N1,302,5001,305,0001,307,500

10,470,000 10,472,500 10,475,000

3D SURVEY LINE.

C & C 2013 AUV SURVEY.

EXISTING PIPELINE OR CABLE LOCATION, AS REPORTED BY BOEM. 

# H EXISTING WELL LOCATION AS REPORTED BY BOEM. 

# ! . PROPOSED WELL LOCATION

CIRCLE REPRESENTS 2000 FT RADIUS
AROUND PROPOSED WELLSITE.

WATER DEPTH CONTOUR IN FEET.
CONTOUR INTERVAL = 10 FOOT. 

### PLAINS EXPLORATION

& PRODUCTION COMPANY



## BATHYMETRY MAP

"HORN MOUNTAIN PROSPECT"

BLOCK 127

MISSISSIPPI CANYON AREA

GULF OF MEXICO

MAP NO. MC 127-C-1 0 1,000 2,000 500 Feet

DATE: 14 NOVEMBER 2013 FILE NAME: 2235_MC127-C-1_Bathy.mxd
PROJECT NO.:0413-2235 G RID N ORTH

NOTE: BATHYMETRY CONTOURS GENERATE D FROM MULTIBEAM BATHYMETRY DATA,
SUPPLEMENTED IN AUV SURVEY GA PS WITH THE 3-D DATA SET.

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OCS-G-18194 Freeport-McMoRan Oil & Gas LLC MC 82

OCS-G-35313 Freeport-McMoRan Oil & Gas LLC PLAINS #4 (G24044)

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10,480,000 10,482,500 10,485,000



# ! . PROPOSED WELL LOCATION.

CIRCLE REPRESENTS 2000 FT RADIUS
AROUND PROPOSED WELLSITE.

3D SURVEY LINE.

C & C 2013 AUV SURVEY. 

# H EXISTING WELL LOCATION AS REPORTED BY BOEM.

WATER DEPTH CONTOUR IN FEET.
CONTOUR INTERVAL = 10 FOOT. 

### FREEPORT-MCMORAN

OIL & GAS LLC



## BATHYMETRY MAP

"HORN MOUNTAIN PROSPECT"

BLOCK 126

MISSISSIPPI CANYON AREA

GULF OF MEXICO

MAP NO. MC 126-D-1 0 1,000 2,000 500 Feet

DATE: 11 JUNE 2014 FILE NAME: 2387-D-1_Bathy.mxd
PROJECT NO.:0514-2387 G RID N ORTH

NOTE: BATHYMETRY CONTOURS GENERATED FROM MULTIBEAM BATHYMETRY DATA,
SUPPLEMENTED IN AUV SURVEY GAPS WITH THE 3-D DATA SET.1 

### Your payment has been submitted to Pay.gov and the details are below. If you have any questions or you wish to cancel this payment, please contact Wendy Yanez at (504) 736-2818.

Application Name: BOEM Exploration Plan - BF Pay.gov Tracking ID: 25GFO605 Agency Tracking ID: 74641577990
Transaction Type: Sale Transaction Date: Jul 2, 2014 9:47:23 AM

Account Holder Name: Katharine Favaloro Transaction Amount: $14,692.00
Billing Address: 700 Milam, Suite 3100
City: Houston State/Province: TX Zip/Postal Code: 77002

Country: USA Card Type: MasterCard

Card Number: ************6901

Region: Gulf of Mexico
Contact: Paul Landry 337-354-5065 Company Name/No: Freeport-McMoRan Oil Gas, 03280 Lease Number(s): 18194, 19925, , ,
Area-Block: Mississippi Canyon MC, 126: Mississippi Canyon MC, 127: , : , : , Surface Locations: 4

THIS IS AN AUTOMATED MESSAGE. PLEASE DO NOT REPLY.

### Freeport

- McMoRan Oil & Gas LLC Section 2

– Pg. 4 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 2

GENERAL INFORMATION

2.1 APPLICATIONS AND PERMITS

Listed in the table below are all additional applications to be filed covering operations
proposed in this EP

.

Application/Permit Issuing Agency Status

Application for Permit to Drill BSEE To be submitted Application for Permit to Modify BSEE To be submitted Emergency Evacuation Plan USCG To be submitted

2.2 DRILLING FLUIDS

The table below provide s t he types and estimated volumes of the drilling fluids FM O&G
plan s to use to drill the proposed wells.

Type of Drilling Fluid Estimated Volume of Drilling Fluid to be Used per Well (bbls)

Water

- based (seawater, freshwater, barite) 35,000 bbls

Oil

- based (diesel, mineral oil ) None Synthetic

- based (internal olefin, ester) 30,000 bbls

2.3 NEW OR UNUSUAL TECHNOLOGY

PROPRIETARY

2.4 BONDING STATEMENT

The bond requirements for the activities and facilities proposed in this EP are satisfied
by a an area

- wide bond , furnished and maintained according to 30 CFR 5 56, subpart I;

NTL No. 2000

- G16, "Guidelines for General Lease Surety Bonds;" and a current

BOEM

- approved deferment from providing additional security under 30 CFR 256.53(d)

and National NTL No. 2008

- N07, “Supplemental Bond Procedures .” If at any point
Freeport

- McMoRan Oil & Gas LLC no longer qualifies for a supplemental bonding
deferment, Freeport

- McMoRan Oil & Gas LLC will either provide the required additional security or a third party guarantee within 60 days after such disqualification.

2.5 OIL SPILL FINANCIAL RESPONSIB ILITY (OSFR)
Freeport

- McMoRan Oil & Gas LLC

, Operator N umber 03280

, will demonstrate oil spill financial responsibility for the facilities proposed in this EP according to 30 CFR Part

5 53; and NTL No. 2008

- N05, "Guidelines for Oil Spill Financial Responsibility for

Covered Facilities" prior to conducting operations covered in this EP.

### Freeport

- McMoRan Oil & Gas LLC Section 2

– Pg. 5 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 2.6 DEEPWATER WELL CONTROL STATEMENT

FM O&G

, Operator number 03280

, has the financial capability to drill a relief well and
conduct other emergency well control operations.

2.7 BLOWOUT SCENARIO AND WORST CASE DISCHARGE CALCULATIONS The Worst Case Discharge is defined as an uncontrolled blowout through the drilling
string duri ng drilling operations on Mississippi Canyon Block 127 Well Locatio n C

.

Estimated Initial Flow Rate (bbls/day): 159,062 bbls/day

Maximum Duration of Potential Blowout (Days): 1 2 0 days

Total Volume (bbls) (Flow Rate X Duration): 19,087,440 bbls

Discussion of potential for well to bridge over: While the sands to be encountered by the wells in this EP are expected to be slightly consolidated, Freeport

- McMoRan Oil & Gas LLC (FM O&G) does NOT assume that the proposed well would bridge over in a

blowout scenario . The basis for this assumption comes from work done in association with Society of Petroleum Engineers (SPE) Paper #163438 on the analysis of potential bridging scenarios during blowout events in the deepwater Gulf of Mexico. FM O&G
agrees with the conc lusions of this SPE paper that the only instances in which a deepwater well could potentially bridge over is a complete loss of the marine riser
hydrostatic column resulting in a sharp pressure reduction downhole leading to wellbore collapse before a blowo ut can fully develop. This bridging would occur quickly before large volumes of hydrocarbons could escape. As FM O&G does not consider this
bridging method to cover all potential blowout scenarios in the proposed well all Worst Case Discharge calculation s will be based upon a well blowing out unimpeded until a relief well can be completed.

Discussion of likelihood for surface intervention to stop blowout: Well Location “C” will be drilled in the Mississippi Canyon (MC) Block 127 as a subsea well in

appr oximately 5,509’ of water with the wellhead and BOP equipment located on the seabed. Surface intervention would be the preferred method of intervention pending an
uncontrolled blowout, however the technique used would be contingent upon the

condition of th e rig, marine riser system and BOP equipment. Surface intervention is a quicker solution than drilling a relief well, but actual methodology of controlling the blowout would have to be determined pending an analysis of the site

‐ specific conditions

at the l ocation

.

Prior to any surface intervention operations a team of specialists would be mobilized immediately to assess the situation and determine a corrective course of action to control the blowout. Well control specialists would perform either a fly

‐ by via helicopter

### Freeport

- McMoRan Oil & Gas LLC Section 2

– Pg. 6 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) and/or surface vessel to assess conditions at the site. FM O&G has Master Service Agreements with both Wild Well Control (a Superior Energy Service s company) and Boots and Coots (a Halliburton company). Additionally an ROV capable of manipu lating the rig’s BOP hot

‐ stab functions would be mobilized to location and, if appropriate, an
attempt would be made to shut in the well by closing the blind shear rams if not done
previously. These actions would take place within 24

‐ 48 hours of the inci dent. Initial
assessment activities are projected to take 3

– 5 days. During this period, the well control team would analyze the blowout situation, devise an inte rvention strategy and mobilize additional service company specialists, supplies and equipment . FM O&G would establish a field support base and secondary command center in the company owned shore base facility in Port Fourchon, LA. Communication would simultaneously
be established with the support base and command center

.

Relief Well

Discussion of Drilling a Relief Well: FM O&G has the financial capability to drill a relief well and conduct other emergency well control operations. Should a relief well be necessary, there are deepwater rigs rated and equipped to drill in water depth of 5,000'

or gr eater actively working in the Gulf of Mexico. Since all rigs proposed for drilling a relief well are dynamically positioned Mobile Offshore Drilling Units (MODUs), the time
necessary to mobilize the rig to location is minimal. The time required to drill th e relief well is dependent on many factors, chief among them is the required depth of the relief
well. The deepest anticipated depth of the relief well would be when an intersection is
required with the blown

‐ out well at its final target depth (TD). The to tal days estimated to drill an example well to potential target depth (PTD) is 120 days. The probable directional nature of the relief well could nominally increase its measured depth
compared to the blown

‐ out well. The time required to drill this extra di stance is anticipated to be more than offset by the better understanding of the optimum drilling
parameters learned while drilling the blown

‐ out well. In order to intersect the blowout
well, numerous ranging runs will be required which will add approximate ly three weeks to the drilling program . The steps and time required to accomplish the dynamic kill are
also dependent on the particular circumstances of the blown

‐ out well.

Rig type capable of drilling relief well at water depth and to TD: There are more than 10 drilling rigs currently working or slated to begi n work in the Gulf of Mexico that are capable of drilling a relief well at these locations

.

Rig package constraints: The rig chosen to drill the relief well must:

• Be rated and equipped to work in wat er depths of greater than 5,000 ’ due to Mississippi Canyon Blocks 126 and 127 deepwater locations

.

### Freeport

- McMoRan Oil & Gas LLC Section 2

– Pg. 7 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) • Dynamically

‐ positioned to eliminate anchoring issues caused by potential subsea

debris.

• Have a BOP package acceptable and certified under current BSEE regula tions

Ti me to acquire rig, move onsite and drill relief well (days):

Activity Duration (days) Assess the situation and obtain the optimum MODU 5
Secure the well at current location of MODU 14

Mobilization time to relief well location 3

Drill relief well 70 Wellbore intersection (of blown out well) 21 Dynamic kill operations 7 Total Anticipated Time 12 0



### Statement whether possibility of using nearby platform was considered: Horn

Mountain S PAR , MC B lock 127, does not have the deckload capacity to handle a drilling operation

.

Other

Measures to enhance ability to prevent a blowout:

• FM O&G will verify with the contractor that all BOPs have been certified, maintained and are capable of operating in the anticipated conditions required for
operations.

• FM O&G representatives will review and witness the installation, testing, function testing and operation of the diverter system and diverter outlets.

• Key personnel on the rig will have a valid well control c ertificate.

• Wiper trips will be performed as hole conditions dictate in order to quantify the stability of the wellbore and to determine whether sufficient mud weights are
being utilized.

• Connections will be simulated as needed while drilling into pressure transition
areas in order to properly assess the current wellbore conditions.

Measures to reduce the likelihood of a blowout:

• A liner top packer or equivalent expandable will be run on all liner laps as an additional barrier for well safety.

• Lost circula tion material will be added to the mud system in order to assist the mud system’s ability to prevent lost circulation. Sweeps and concentrated pills
will be used to prevent uncontrolled mud losses.

### Freeport

- McMoRan Oil & Gas LLC Section 2

– Pg. 8 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) • Every effort will be made to review all offset and seismic data in order to prepare a mud weight schedule that will allow for safe drilling margin without putting
excess hydrostatics pressures on known zones previously encountered.

• Mudloggers may be utilized during critical drilling operations to monitor gas

cont ent of mud returns, formation characteristics and abnormalities of cuttings and to estimate paleo aging of cuttings.

• Logging While Drilling (LWD) tools will be utilized as much as possible to
evaluate formations, formation pressures and fluid content in th e critical sections

of the well.

• Log data will be continuously reviewed by FM O&G’s drilling and geological
departments.

Measures to enhance ability to conduct effective and early intervention in event

of a blowout: FM O&G is a member of the Helix Well Co ntainment Group (HWCG) and has full access to a subsea capping stack and a complete suite of oil recovery equipment as required. This subsea capping stack has been deployed successfully to a well location with cooperation from BSEE.

Arrangements for drill ing relief wells: FM O&G has Master Service Agreements with both Wild Well Control (a Superior Energy Services company) and Boots and Coots (a Halliburton company) who would assist in detailed relief well planning including the
identification of required e quipment and services.

Any other measures: No

### Freeport

- McMoRan Oil & Gas LLC Section 4

– Pg. 9 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 3

GEOLOGICAL AND GEOPHYSICAL INFORMATION

3.1 GEOLOGICAL DESCRIPTION

PROPRIETARY

3.2 STRUCTURE CONTOUR MAP

PROPRIETARY

3.3 INTERPRETED SEISMIC LINE(S )
PROPRIETARY

3.4 GEOLOGICAL STRUCTURE CROSS

- SECTIONS

PROPRIETARY

3.5 SHALLOW HAZARDS REPORT A shallow hazards survey was conducted over Mississippi Canyon Blocks 126

, 127 and

82

.

In accordance with NTL No. 2008

- G05, “Shallow Hazar ds Program” (Extended by NTL

No. 2014

- G05, “Extension of Prior Notices to Lessees”), a shallow hazards survey evaluating seafloor and subsurface geological and manmade features and conditions that may adversely affect drilling operations, was conducted by Geoscience Earth &

Marine Se rvices, Inc. The shallow hazards report is provided with this plan

.

3.6 SHALLOW HAZARDS ASSESSMENT

In accordance with NTL No. 2008

- G05, “Shallow Hazards Program,” (Extended by NTL

No. 2014

- G05, “Extension of Prior Notices to Lessees”), a shallow hazards a ssessment has been prepared for each proposed surface location evaluating seafloor and subsurface geological and manmade features and conditions that may adversely affect
drilling operations. The shallow hazards survey and archaeological assessment is

inc luded as Attachment 3

- D

.

3.7 HIGH

- RESOLUTION SEISMIC LINES

PROPRIETARY

3.8 STRATIGRAPHIC COLUMN

PROPRIETARY

3.9 TIME V ERSUS DEPTH TABLES
PROPRIETARY**10344 Sam Houston Park Dr. Houston, Texas 77064**  **713.351.7900 [o] 713.351.7996 [f] www.gemsinc.com** 

**November 15, 2013 Project No. 0413-2235** 

**Plains Exploration and Production Company**

**400 East Kaliste Saloom Road**

**Suite 1100 Lafayette, LA 70508** 

**Attention: Mr. Brian Brennan**



### Site Clearance Letter for Proposed Wellsite MC 127-A Block 127 (OCS-G-19925) Mississippi Canyon Area
Gulf of Mexico

**Plains Exploration and Production Company (PXP) con tracted Geoscience Earth & Marine Services**  **(GEMS) to provide an assessment of the seafloor and shallow geologic conditions to determine the**  **favorability of drilling operations for the propose d location MC 127-A in Block 127 (OCS G-19925),**  **Mississippi Canyon Area, Gulf of Mexico. This lett er addresses specific seafloor and subsurface**  **conditions around the proposed location to the limi t of investigation, a depth of about 5,112 ft below**  **the mudline (bml).** 

**Seafloor conditions appear favorable within 2,000 f t of the proposed surface location. The Horn Mount**  **ain truss spar, numerous existing wells, and three pipe**  **lines lie within 6,000 ft of the proposed MC 127-A location. Logs from offset wells show intermittent**  **sand layers within the upper 5,100 ft of sediment. There is a negligible to low potential for encounte**  **ring overpressured sands within the limit of investigation. Caution is recommended while drilli**  **ng through a potential sand-prone sequence between 1,127 ft and 1,248 ft with respect to the potential**  **for shallow gas.**

**This letter provides details specific to the well l ocation, including: available data, Notice to Lesse**  **es (NTL) requirements, man-made features, and wellsite condi**  **tions.**



### Proposed Well Location

**The surface location for the Proposed Exploration W ellsite MC 127-A lies in the south-central portion**  **of MC 127. PXP provided the following coordinates:** 

Table 1. Proposed Location Coordinates

Proposed Wellsite MC 127-A

Spheroid & Datum: Clarke 1866, NAD27 Projection: UTM Zone 16 North Line Reference Block Calls (MC 127)

**X: 1,306,355 ft Latitude: 28o 51’ 32.31568” N Inlin e 6846 7,475 ft FWL** 

**Y: 10,474,500 ft Longitude: 88o 02’ 38.17614” W Cro ssline 6542 4,260 ft FSL** 

**PXP will drill this well using a dynamically positi oned drilling vessel. Our assessment addresses the**  **seafloor conditions within a 2,000-ft radius around the proposed wellsite location.** 



### Available Data

**The following discussion is based on the findings p rovided within the geohazard report “Geologic and**  **Stratigraphic Assessment, Blocks 82, 126, and 127, Mississippi Canyon Area, Gulf of Mexico” (GEMS** **Proposed Wellsite MC 127-A Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 2 FORUM ENERGY TECHNOLOGIES, INC. **Project No. 0413-2235). The text, maps, and figure s included in the report provide detail on the regi**  **onal geology of the Study Area. PXP provided an explora**  **tion 3-D seismic time volume for the geohazard analysis, covering an approximate 135.5 square-mile**  **"Survey Area" that includes all or portions of Federal lease Blocks MC 37-39, 81-84, 125-128, and**  **169-172 (Figure A-1). Sub-seafloor mapping was limited to an approximate 27 square-mile “Study Are**  **a” covering all of GC 82, 126, and 127. PXP also provided high-resolution geophysical data collected**  **by C & C Technologies, Inc., (C & C) in May and June 2013 using an AUV (Autonomous Underwater Vehic**  **le) over the three-block Study Area (Figure A 1). These data included 1.5-4.5 kHz subbottom prof**  **iler, 230-kHz side-scan sonar, and 3-meter bin multibeam bathymetry data.** 

Figure A-1. **Seafloor Rendering of the Mississippi Canyon Survey Area.** 



### Attachments

**Wellsite maps are centered on the Proposed Explorat ion Wellsite MC 127-A location and are displayed at**  **a 1 inch = 1,000 ft scale (1:12,000). The maps inc luded in this letter are as follows:** 

**Map No. MC 127-A-1: Bathymetry Map Map No. MC 127-A-2: Seafloor Features Map**  **Map No. MC 127-A-3: Side-Scan Sonar Mosaic Map No. MC 127-A-4: Geologic Features Map**  

### 3-D Coverage Area

AUV Coverage Area

Study Area

Platform

Existing Well Location

Existing Pipeline

Location

Proposed Well Location



### Horn Mountain
**Spar Proposed Wellsite MC 127-A Clearance Letter** 

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 3 FORUM ENERGY TECHNOLOGIES, INC. **The illustrations accompanying this letter were ext racted from the available datasets and are listed b**  **elow:**

**Illustration MC 127-A-1: Subbottom Profiler Line Showing Near-Surface Conditions Near**  **Proposed Wellsite MC 127-A**
**Illustration MC 127-A-2: Portions of Inline 6846 and Crossline 6542 Showing Conditions Beneath** 

**Proposed Wellsite MC 127-A Illustration MC 127-A-3: Tophole Prognosis Chart,**  **Proposed Wellsite MC 127-A, Mississippi**

**Canyon, Block 127 Illustration MC 127-A-4: Correlation Between Propo**  **sed MC 127-A and Existing Well**



### NTL Requirements

**The following report complies with the Bureau of Oc ean Energy Management (BOEM) Notice to Lessees**  **(NTL’s) 2009-G40, 2008-G04, and 2008-G05 (MMS, 2010 and 2008a, b). The Federal lease Block**  **MC 127 is considered archaeologically significant ( NTL 2011-JOINT-G01, BOEM, 2011); therefore,**  **requirements set forth in NTL 2005-G07 (MMS, 2005) are applicable in terms of high-probability for his**  **toric resources. C & C prepared an archaeological assess**  **ment to comply with the Archaeological Resource Surveys and Reports requirements and submitted the**  **report to PXP in August 2013 (C & C, 2013).**

**As specified in NTL 2008-G05 (MMS, 2008b), GEMS ext racted the power spectrum diagram from the 3-D**  **seismic data cube provided by PXP at the proposed w ellsite (Figure A-2). The extraction was generated** 

**within a 500-ft radius of the intersection of the i nline and crossline at the proposed wellsite. The** 
**extraction time interval consisted of the seafloor to one second below the mudline. We converted the**  **amplitude vs. frequency spectrum, generated by the SMT software, to power vs. frequency by squaring**  **the amplitude values as described by J. A. Coffeen, 1978.** 

Figure A-2. **Power Spectrum Curve, Proposed Wellsite MC 127-A**

**0 0.1**  **0.2 0.3**  **0.4 0.5**  **0.6 0.7**  **0.8 0.9**  **1**

**0 10 20 30 40 50 60 70 80 90 100 110 120** Power (Amp2)

Frequency (Hz) POWER SPECTRUM**Proposed Wellsite MC 127-A Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 4 FORUM ENERGY TECHNOLOGIES, INC. 

### Man-Made Features

**The Proposed Wellsite MC 127-A is located in the Ho rn Mountain development area (Figure A-1).**  **Several wells have previously been drilled near the proposed MC 127-A location in both MC 126 and 127.**  **Table 2 provides a summary of the exploration wells drilled within 12,000 feet of the proposed MC 127-**  **A**

**well:**

Table 2. Existing Well Locations Near the Proposed Wellsite

Surface
Area / Block Well

Name Operator Well Status Distance / Direction from Proposed

Surface Location

**MC 127 2**  **Plains Exploration & Production Company**  **Temporarily**

**Abandoned 598 ft/East-Southeast** 

**MC 127 1; A001** 

**through**

**A010 Plains Exploration &** 

**Production Company Completed**  **4,617 ft to 4,773 ft /**

**Northwest**

**MC 126 1**  **Plains Exploration & Production Company**  **Plugged and**

**Abandoned 11,669 ft/Northwest** 

**Note: Latest infrastructure update from the BOEM da tabase on October, 2013 (BOEM, 2013).** 

**Plains' truss spar, approximately 4,703 ft northwes t of the Proposed MC 127-A location in west-central**  **MC 127, serves as the production facility for the H orn Mountain development area (Figure A-1). Oil is**  **exported from the spar to the north-northwest to Ma in Pass (MP) 289 through Plains' 12-inch pipeline.**  **Plains' 10-inch gas pipeline trends parallel to the oil pipeline to VK 998 then extends north to north**  **east to MP 260. A 2-inch, BP operated service pipeline lie**  **s 3,637 ft west of the proposed location (Maps MC 127-A-1 through MC 127-A-4). The pipeline trend**  **s south from the Horn Mountain spar to MC 258.**

**No side-scan sonar contacts are located within a 1, 100 ft radius of the proposed location (Maps MC 127** 

**- A-3 and MC 127-A-4), C & C, 2013. A small, wedge-s**  **haped data gap occurs on the side-scan sonar mosaic approximately 1,135 ft to 1,470 ft north of**  **the proposed MC 127-A location. Mooring lines from Plains' truss spar prevented C & C from acquiring d**  **ata over the area.**



### Wellsite Conditions

**The proposed location is clear of any constraining seafloor conditions as defined by the AUV and 3-D**  **seismic datasets. Interbedded sand layers are like ly below 517 ft bml, increasing in thickness with d**  **epth below 2,739 ft bml. A sand-prone interval will req**  **uire attention during drilling operations with rega rd to**  **shallow gas. The proposed wellbore will intersect one buried fault at about 3,125 ft bml.** 



### Water Depth and Seafloor Conditions

**Seafloor conditions are favorable at the proposed w ellsite location. MC 127-A is situated along a gen**  **tly dipping seafloor approximately 1.3 miles west of Do**  **rsey Canyon and 2.6 miles southeast of Petit Bois Dome (Figure A-1). Overall, the seabed is relative**  **ly smooth at the proposed location (Maps MC 127-A-1 and MC 127-A-2, Illustration MC 127-A-1). The wate**  **r depth at the proposed surface location is -5,466 ft**  **(Map MC 127-A-1). The seafloor slopes to the south east at 0.7°.** 



### Deepwater Benthic Communities

**No features or areas were interpreted within 2,000 ft of the proposed location that are capable of**  **supporting high-density chemosynthetic or other dee pwater benthic communities. The side-scan sonar**  **mosaic indicate a homogenous seabed in the vicinity of the proposed location, suggesting normal Gulf o**  **f Mexico surficial sediments (Map MC 127-A-3).** **Proposed Wellsite MC 127-A Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 5 FORUM ENERGY TECHNOLOGIES, INC. 

### Stratigraphy

**Stratigraphic conditions are shown on Illustrations MC 127-A-2 and MC 127-A-3. The surficial and**  **shallowest units, seafloor to Horizon 20 (to about 517 ft bml), will likely consist of an approximate**  **6-ft very soft silty clay hemipelagic drape overlying stratif**  **ied, normally consolidated hemipelagic clays, silty clays,**  **and muddy turbidites (Illustrations MC 127-A-1 thro ugh MC 127-A-3).** 

**The sedimentary section below Horizon 20 to the lim it of investigation (5,112 ft bml) consists primari**  **ly of interbedded hemipelagic and pelagic clays, turbidit**  **es, and mass-transport complexes (Illustration MC 127-A-3). Well logs from the nearby Plains MC 1**  **27 #1 and #2 wells indicate a generally clay-prone shallow section with interbedded thin sand layers t**  **ypically below Horizon 20 (517 ft bml); Illustratio n**  **MC 127-A-4. Sands are likely to increase in thickn ess below Horizon 50 (2,739 ft bml) at the Proposed** 

**MC 127-A location.**



### Faults

**No seafloor faults will be penetrated by the propos ed wellsite (Illustrations MC 127-A-1 through MC 12**  **7- A-4). A vertical wellbore at the proposed location**  **will intersect a buried fault at a depth of approx imately**  **3,125 ft bml (-8,591 ft bsl), Illustration MC 127-A -3 The buried fault generally trends east-west and**  **is downthrown to the north (Map MC 127-A-4). Engineer**  **s should be aware of the potential for lost circulation across the fault plane.** 



### Shallow Gas and Shallow Water Flow

**The potential for encountering shallow gas accumula tions at the MC 127-A location is moderate**  **(Illustration MC 127-A-3). The potential for shall ow water flow is considered low.** 

Shallow Gas. **The proposed well path will not penetrate any high- amplitude events from the**  **seafloor to the limit of investigation (about 5,112 ft bml), Map MC 127-A-4. Amplitude anomalies with**  **in 400 ft of the proposed location are identified alon**  **g a continuous moderate-amplitude reflector and lik ely**  **represents lithologic variation in the section rath er than significant gas accumulation. However, a**  **moderate potential for shallow gas is assessed for the sedimentary section between 1,127 ft and 1,248**  **ft bml (Illustration MC 127-A-3). A narrow area trend**  **ing north-south, possibly within a channel, contain s**  **elevated amplitudes and disturbed reflectors in the upper portion of the Horizon 30 to 35 unit**  **approximately 250 ft east of the proposed location (Illustration MC 127-A-2). High-amplitude anomalie**  **s mapped along this trend are represented on the Geol**  **ogic Features Map (Map MC 127-A-4) as blue polygons. Resistivity logs from the Plains MC 127**  **#2 well show an indication of possible gas associat ed**  **with sand layers in the Horizon 30 to 35 unit betwe en -6,545 ft and -6,611 ft bsl (Illustration MC 127**  **-A-4). The possibility of gas associated with thin sand la**  **yers cannot be ruled out between 1,127 ft and 1,248 ft**  **bml at the proposed location.**

**A low potential for encountering shallow gas exists from 1,248 ft to 1,503 ft bml and below 1,702 ft b**  **ml to the limit of investigation (Illustration MC 127-A-3**  **). Minor amounts of shallow gas may be encountered within isolated sands. There is a negligible poten**  **tial for encountering shallow gas within the upper 1,127 ft bml (seafloor to Horizon 30 interval) and**  **from 1,503 ft to 1,702 ft bml at the proposed wells ite.** 

Shallow Water Flow. **The potential for shallow water flow at this well l ocation is considered**  **negligible to low based on the lack of regionally e xtensive sand-prone complexes in the shallow sectio**  **n, the lack of reported water flow incidents from the**  **nearby existing wells, and offset well log data. A low**  **potential for shallow water flow exists from 642 ft to 1,248 ft bml and below 1,702 ft bml to the limi**  **t of investigation (5,112 ft bml). Sand layers are poss**  **ible within these intervals; however, any fluids encountered are not likely to be significantly over**  **pressured. A negligible potential for overpressure d**  **sands is assessed within the upper 642 ft of sedime nt and from 1,248 ft to 1,702 ft bml (Illustration**  **MC 127-A-3). Proposed Wellsite MC 127-A Clearance Letter** 

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 6 FORUM ENERGY TECHNOLOGIES, INC. 

### Results

**Numerous existing infrastructure including the Horn Mountain truss spar, wells, and pipelines lie with**  **in the vicinity of the proposed MC 127-A location. Th**  **e probability for encountering sand in the shallow section increases below 517 ft bml. There is a neg**  **ligible to low potential for encountering overpress ured**  **sands within the limit of investigation. We advise using caution while drilling through the sand-pron**  **e interval from 1,127 ft and 1,248 ft bml with regard**  **to the potential for shallow gas. Engineers shoul d be**  **aware of the potential for a loss of circulation ac ross the buried fault at about 3,125 ft bml.** 



### Closing

**We appreciate the opportunity to be of service to P lains Exploration and Production Company and look**  **forward to working with Plains on future projects.**

**Sincerely,**

GEOSCIENCE EARTH & MARINE SERVICES

**Erin Williams Janes Daniel Lanier Project Manager/Senior Geoscientist Director** 

**Attachments (4 Maps and 4 Figures)**

**Distribution: Mr. Brian Brennan, Plains Exploration and Productio**  **n Company, (6 copies)**

REFERENCES

**BOEM (Bureau of Ocean Energy Management), 2011, Not ice to lessees and operators (NTL) of federal oil a**  **nd gas leases and pipeline right-of-way (ROW) holders on the oute**  **r continental shelf (OCS), Revisions to the list of OCS lease blocks**  **requiring archaeological resource surveys and repor ts: U. S. Department of the Interior, Bureau of Oc**  **ean Energy Management, Bureau of Safety and Environmental Enfo**  **rcement Gulf of Mexico Region (GOMR), NTL 2011-JOIN T-G01.**  **Effective Date December 29, 2011.**

**Bureau of Ocean Energy Management, 2013, ASCII Data Files, published on the BOEM Gulf of Mexico Region**  **Homepage, <http://www.gomr.boem.gov/homepg/pubinfo/freeasci/f**  **reedesc.html>, accessed October, 2013.**

**C & C Technologies, Inc., (C & C), 2013, Archaeolog ical assessment, "Horn Mountain" prospect, blocks 8**  **2 (OCS-G-24044), 126 (OCS-G-18194), and 127 (OCS-G-19925), Mississip**  **pi Canyon Area, report No., 130271.**

**Coffeen, J. A., 1978, Seismic Exploration Fundament als: Tulsa, the Petroleum Publishing Co., p. 125.** 

**Minerals Management Service, 2005, Notice to lessee s and operators of federal oil, gas, and sulphur le**  **ases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, Archaeological resourc e surveys and reports:**  **U. S. Department of the Interior, Minerals Manageme nt Service, Gulf of Mexico, NTL 2005-G07.** 

**Minerals Management Service, 2008a, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, information requiremen ts for exploration plans**  **and development operations coordination documents: U. S. Department of the Interior, Minerals Manageme**  **nt Service, Gulf of Mexico, NTL 2008-G04.** 

**Minerals Management Service, 2008b, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, shallow hazards requir ements: U. S.**  **Department of the Interior, Minerals Management Ser vice, Gulf of Mexico, NTL 2008-G05.** 

**Minerals Management Service, 2010, Notice to lessee s and operators of federal oil and gas leases in th**  **e outer continental shelf, Gulf of Mexico OCS region, deepwater benthic**  **communities: U. S. Department of the Interior, Min erals Management**  **Service, Gulf of Mexico, NTL 2009-G40. Effective D ate January 27, 2010.** **10344 Sam Houston Park Dr. Houston, Texas 77064**  **713.351.7900 [o] 713.351.7996 [f] www.gemsinc.com** 

**November 15, 2013 Project No. 0413-2235** 

**Plains Exploration and Production Company**

**400 East Kaliste Saloom Road**

**Suite 1100 Lafayette, LA 70508** 

**Attention: Mr. Brian Brennan**



### Site Clearance Letter for Proposed Wellsite MC 127-B Block 127 (OCS-G-19925) Mississippi Canyon Area
Gulf of Mexico

**Plains Exploration and Production Company (PXP) con tracted Geoscience Earth & Marine Services**  **(GEMS) to provide an assessment of the seafloor and shallow geologic conditions to determine the**  **favorability of drilling operations for the propose d location MC 127-B in Block 127 (OCS G-19925),**  **Mississippi Canyon Area, Gulf of Mexico. This lett er addresses specific seafloor and subsurface**  **conditions around the proposed location to the limi t of investigation, a depth of about 5,112 ft below**  **the mudline (bml).** 

**Seafloor conditions appear favorable within 2,000 f t of the proposed surface location. The Horn Mount**  **ain truss spar, numerous existing wells, and three pipe**  **lines lie within 6,000 ft of the proposed MC 127-B location. Logs from offset wells show intermittent**  **sand layers within the upper 5,100 ft of sediment. There is a negligible to low potential for encounte**  **ring overpressured sands within the limit of investigation. Caution is recommended while drilli**  **ng through a potential sand-prone sequence between 1,130 ft and 1,248 ft with respect to the potential**  **for shallow gas.**

**This letter provides details specific to the well l ocation, including: available data, Notice to Lesse**  **es (NTL) requirements, man-made features, and wellsite condi**  **tions.**



### Proposed Well Location

**The surface location for the Proposed Exploration W ellsite MC 127-B lies in the south-central portion**  **of MC 127. PXP provided the following coordinates:** 

Table 1. Proposed Location Coordinates

Proposed Wellsite MC 127-B

Spheroid & Datum: Clarke 1866, NAD27 Projection: UTM Zone 16 North Line Reference Block Calls (MC 127)

**X: 1,306,214 ft Latitude: 28o 51’ 32.07563” N Inlin e 6843 7,334 ft FWL** 

**Y: 10,474,477 ft Longitude: 88o 02’ 39.75989” W Cro ssline 6544 4,237 ft FSL** 

**PXP will drill this well using a dynamically positi oned drilling vessel. Our assessment addresses the**  **seafloor conditions within a 2,000-ft radius around the proposed wellsite location.** 



### Available Data

**The following discussion is based on the findings p rovided within the geohazard report “Geologic and**  **Stratigraphic Assessment, Blocks 82, 126, and 127, Mississippi Canyon Area, Gulf of Mexico” (GEMS** **Proposed Wellsite MC 127-B Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 2 FORUM ENERGY TECHNOLOGIES, INC. **Project No. 0413-2235). The text, maps, and figure s included in the report provide detail on the regi**  **onal geology of the Study Area. PXP provided an explora**  **tion 3-D seismic time volume for the geohazard analysis, covering an approximate 135.5 square-mile**  **"Survey Area" that includes all or portions of Federal lease Blocks MC 37-39, 81-84, 125-128, and**  **169-172 (Figure B-1). Sub-seafloor mapping was limited to an approximate 27 square-mile “Study Are**  **a” covering all of GC 82, 126, and 127. PXP also provided high-resolution geophysical data collected**  **by C & C Technologies, Inc., (C & C) in May and June 2013 using an AUV (Autonomous Underwater Vehic**  **le) over the three-block Study Area (Figure B 1). These data included 1.5-4.5 kHz subbottom prof**  **iler, 230-kHz side-scan sonar, and 3-meter bin multibeam bathymetry data.** 

Figure B-1. **Seafloor Rendering of the Mississippi Canyon Survey Area.** 



### Attachments

**Wellsite maps are centered on the Proposed Explorat ion Wellsite MC 127-B location and are displayed at**  **a 1 inch = 1,000 ft scale (1:12,000). The maps inc luded in this letter are as follows:** 

**Map No. MC 127-B-1: Bathymetry Map Map No. MC 127-B-2: Seafloor Features Map**  **Map No. MC 127-B-3: Side-Scan Sonar Mosaic Map No. MC 127-B-4: Geologic Features Map**  

### 3-D Coverage Area

AUV Coverage Area

Study Area

Platform

Existing Well Location

Existing Pipeline

Location

Proposed Well Location



### Horn Mountain
**Spar Proposed Wellsite MC 127-B Clearance Letter** 

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 3 FORUM ENERGY TECHNOLOGIES, INC. **The illustrations accompanying this letter were ext racted from the available datasets and are listed b**  **elow:**

**Illustration MC 127-B-1: Subbottom Profiler Line Showing Near-Surface Conditions Near**  **Proposed Wellsite MC 127-B**
**Illustration MC 127-B-2: Portions of Inline 6843 and Crossline 6544 Showing Conditions Beneath** 

**Proposed Wellsite MC 127-B Illustration MC 127-B-3: Tophole Prognosis Chart,**  **Proposed Wellsite MC 127-B, Mississippi**

**Canyon, Block 127 Illustration MC 127-B-4: Correlation Between Propo**  **sed MC 127-B and Existing Well**



### NTL Requirements

**The following report complies with the Bureau of Oc ean Energy Management (BOEM) Notice to Lessees**  **(NTL’s) 2009-G40, 2008-G04, and 2008-G05 (MMS, 2010 and 2008a, b). The Federal lease Block**  **MC 127 is considered archaeologically significant ( NTL 2011-JOINT-G01, BOEM, 2011); therefore,**  **requirements set forth in NTL 2005-G07 (MMS, 2005) are applicable in terms of high-probability for his**  **toric resources. C & C prepared an archaeological assess**  **ment to comply with the Archaeological Resource Surveys and Reports requirements and submitted the**  **report to PXP in August 2013 (C & C, 2013).**

**As specified in NTL 2008-G05 (MMS, 2008b), GEMS ext racted the power spectrum diagram from the 3-D**  **seismic data cube provided by PXP at the proposed w ellsite (Figure B-2). The extraction was generated** 

**within a 500-ft radius of the intersection of the i nline and crossline at the proposed wellsite. The** 
**extraction time interval consisted of the seafloor to one second below the mudline. We converted the**  **amplitude vs. frequency spectrum, generated by the SMT software, to power vs. frequency by squaring**  **the amplitude values as described by J. A. Coffeen, 1978.** 

Figure B-2. **Power Spectrum Curve, Proposed Wellsite MC 127-B**

**0 0.1**  **0.2 0.3**  **0.4 0.5**  **0.6 0.7**  **0.8 0.9**  **1**

**0 10 20 30 40 50 60 70 80 90 100 110 120** Power (Amp2)

Frequency (Hz) POWER SPECTRUM**Proposed Wellsite MC 127-B Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 4 FORUM ENERGY TECHNOLOGIES, INC. 

### Man-Made Features

**The Proposed Wellsite MC 127-B is located in the Ho rn Mountain development area (Figure B-1).**  **Several wells have previously been drilled near the planned MC 127-B location in both MC 126 and 127.**  **Table 2 provides a summary of the exploration wells drilled within 12,000 feet of the proposed MC 127-**  **B**

**well:**

Table 2. Existing Well Locations Near the Proposed Wellsite

Surface
Area / Block Well

Name Operator Well Status Distance / Direction from Proposed

Surface Location

**MC 127 2**  **Plains Exploration & Production Company**  **Temporarily**

**Abandoned 734 ft/East-Southeast** 

**MC 127 1; A001** 

**through**

**A010 Plains Exploration &** 

**Production Company Completed**  **4,513 ft to 4,669 ft /**

**Northwest**

**MC 126 1**  **Plains Exploration & Production Company**  **Plugged and**

**Abandoned 11,563 ft/Northwest** 

**Note: Latest infrastructure update from the BOEM da tabase on October, 2013 (BOEM, 2013).** 

**Plains' truss spar, approximately 4,599 ft northwes t of the Proposed MC 127-B location in west-central**  **MC 127, serves as the production facility for the H orn Mountain development area (Figure B-1). Oil is**  **exported from the spar to the north-northwest to Ma in Pass (MP) 289 through Plains' 12-inch pipeline.**  **Plains' 10-inch gas pipeline trends parallel to the oil pipeline to VK 998 then extends north to north**  **east to MP 260. A 2-inch, BP operated service pipeline lie**  **s 3,494 ft west of the proposed location (Maps MC 127-B-1 through MC 127-B-4). The pipeline trend**  **s south from the Horn Mountain spar to MC 258.**

**No side-scan sonar contacts are located within a 1, 200 ft radius of the proposed location (Maps MC 127** 

**- B-3 and MC 127-B-4), C & C, 2013. A small, wedge-s**  **haped data gap occurs on the side-scan sonar mosaic approximately 1,232 ft to 1,497 ft north of**  **the proposed MC 127-B location. Mooring lines from Plains' truss spar prevented C & C from acquiring d**  **ata over the area.**



### Wellsite Conditions

**The proposed location is clear of any constraining seafloor conditions as defined by the AUV and 3-D**  **seismic datasets. Interbedded sand layers are like ly below 514 ft bml, increasing in thickness with d**  **epth below 2,742 ft bml. A sand-prone interval will req**  **uire attention during drilling operations with rega rd to**  **shallow gas. The proposed wellbore will intersect one buried fault at about 3,209 ft bml.** 



### Water Depth and Seafloor Conditions

**Seafloor conditions are favorable at the proposed w ellsite location. MC 127-B is situated along a gen**  **tly dipping seafloor approximately 1.3 miles west of Do**  **rsey Canyon and 2.6 miles southeast of Petit Bois Dome (Figure B-1). Overall, the seabed is relative**  **ly smooth at the proposed location (Maps MC 127-B-1 and MC 127-B-2, Illustration MC 127-B-1). The wate**  **r depth at the proposed surface location is -5,467 ft**  **(Map MC 127-B-1). The seafloor slopes to the south east at 1.2°.** 



### Deepwater Benthic Communities

**No features or areas were interpreted within 2,000 ft of the proposed location that are capable of**  **supporting high-density chemosynthetic or other dee pwater benthic communities. The side-scan sonar**  **mosaic indicate a homogenous seabed in the vicinity of the proposed location, suggesting normal Gulf o**  **f Mexico surficial sediments (Map MC 127-B-3).** **Proposed Wellsite MC 127-B Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 5 FORUM ENERGY TECHNOLOGIES, INC. 

### Stratigraphy

**Stratigraphic conditions are shown on Illustrations MC 127-B-2 and MC 127-B-3. The surficial and**  **shallowest units, seafloor to Horizon 20 (to about 514 ft bml), will likely consist of an approximate**  **6-ft very soft silty clay hemipelagic drape overlying stratif**  **ied, normally consolidated hemipelagic clays, silty clays,**  **and muddy turbidites (Illustrations MC 127-B-1 thro ugh MC 127-B-3).** 

**The sedimentary section below Horizon 20 to the lim it of investigation (5,112 ft bml) consists primari**  **ly of interbedded hemipelagic and pelagic clays, turbidit**  **es, and mass-transport complexes (Illustration MC 127-B-3). Well logs from the nearby Plains MC 1**  **27 #1 and #2 wells indicate a generally clay-prone shallow section with interbedded thin sand layers t**  **ypically below Horizon 20 (514 ft bml); Illustratio n**  **MC 127-B-4. Sands are likely to increase in thickn ess below Horizon 50 (2,742 ft bml) at the Proposed** 

**MC 127-B location.**



### Faults

**No seafloor faults will be penetrated by the propos ed wellsite (Illustrations MC 127-B-1 through MC 12**  **7- B-4). A vertical wellbore at the proposed location**  **will intersect a buried fault at a depth of approx imately**  **3,209 ft bml (-8,676 ft bsl), Illustration MC 127-B -3 The buried fault generally trends east-west and**  **is downthrown to the north (Map MC 127-B-4). Engineer**  **s should be aware of the potential for lost circulation across the fault plane.** 



### Shallow Gas and Shallow Water Flow

**The potential for encountering shallow gas accumula tions at the MC 127-B location is moderate**  **(Illustration MC 127-B-3). The potential for shall ow water flow is considered low.** 

Shallow Gas. **The proposed well path will not penetrate any high- amplitude events from the**  **seafloor to the limit of investigation (about 5,112 ft bml), Map MC 127-B-4. Amplitude anomalies with**  **in 400 ft of the proposed location are identified alon**  **g a continuous moderate-amplitude reflector and lik ely**  **represents lithologic variation in the section rath er than significant gas accumulation. However, a**  **moderate potential for shallow gas is assessed for the sedimentary section between 1,130 ft and 1,248**  **ft bml (Illustration MC 127-B-3). A narrow area trend**  **ing north-south, possibly within a channel, contain s**  **elevated amplitudes and disturbed reflectors in the upper portion of the Horizon 30 to 35 unit**  **approximately 335 ft east of the proposed location (Illustration MC 127-A-2). High-amplitude anomalie**  **s mapped along this trend are represented on the Geol**  **ogic Features Map (Map MC 127-B-4) as blue polygons. Resistivity logs from the Plains MC 127**  **#2 well show an indication of possible gas associat ed**  **with sand layers in the Horizon 30 to 35 unit betwe en -6,545 ft and -6,611 ft bsl (Illustration MC 127**  **-B-4). The possibility of gas associated with thin sand la**  **yers cannot be ruled out between 1,130 ft and 1,248 ft**  **bml at the proposed location.**

**A low potential for encountering shallow gas exists from 1,248 ft to 1,512 ft bml and below 1,702 ft b**  **ml to the limit of investigation (Illustration MC 127-B-3**  **). Minor amounts of shallow gas may be encountered within isolated sands. There is a negligible poten**  **tial for encountering shallow gas within the upper 1,130 ft bml (seafloor to Horizon 30 interval) and**  **from 1,512 ft to 1,702 ft bml at the proposed wells ite.** 

Shallow Water Flow. **The potential for shallow water flow at this well l ocation is considered**  **negligible to low based on the lack of regionally e xtensive sand-prone complexes in the shallow sectio**  **n, the lack of reported water flow incidents from the**  **nearby existing wells, and offset well log data. A low**  **potential for shallow water flow exists from 642 ft to 1,248 ft bml and below 1,702 ft bml to the limi**  **t of investigation (5,112 ft bml). Sand layers are poss**  **ible within these intervals; however, any fluids encountered are not likely to be significantly over**  **pressured. A negligible potential for overpressure d**  **sands is assessed within the upper 642 ft of sedime nt and from 1,248 ft to 1,702 ft bml (Illustration**  **MC 127-B-3). Proposed Wellsite MC 127-B Clearance Letter** 

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 6 FORUM ENERGY TECHNOLOGIES, INC. 

### Results

**Numerous existing infrastructure including the Horn Mountain truss spar, wells, and pipelines lie with**  **in 6,000 ft of the proposed MC 127-B location. The pr**  **obability for encountering sand in the shallow sect ion**  **increases below 514 ft bml. There is a negligible to low potential for encountering overpressured san**  **ds within the limit of investigation. We advise using**  **caution while drilling through the sand-prone inte rval**  **from 1,130 ft and 1,248 ft bml with regard to the p otential for shallow gas. Engineers should be awar**  **e of the potential for a loss of circulation across the**  **buried fault at about 3,209 ft bml.**



### Closing

**We appreciate the opportunity to be of service to P lains Exploration and Production Company and look**  **forward to working with Plains on future projects.**

**Sincerely,**

GEOSCIENCE EARTH & MARINE SERVICES

**Erin Williams Janes Daniel Lanier Project Manager/Senior Geoscientist Director** 

**Attachments (4 Maps and 4 Figures)**

**Distribution: Mr. Brian Brennan, Plains Exploration and Productio**  **n Company, (6 copies)**

REFERENCES

**BOEM (Bureau of Ocean Energy Management), 2011, Not ice to lessees and operators (NTL) of federal oil a**  **nd gas leases and pipeline right-of-way (ROW) holders on the oute**  **r continental shelf (OCS), Revisions to the list of OCS lease blocks**  **requiring archaeological resource surveys and repor ts: U. S. Department of the Interior, Bureau of Oc**  **ean Energy Management, Bureau of Safety and Environmental Enfo**  **rcement Gulf of Mexico Region (GOMR), NTL 2011-JOIN T-G01.**  **Effective Date December 29, 2011.**

**Bureau of Ocean Energy Management, 2013, ASCII Data Files, published on the BOEM Gulf of Mexico Region**  **Homepage, <http://www.gomr.boem.gov/homepg/pubinfo/freeasci/f**  **reedesc.html>, accessed October, 2013.**

**C & C Technologies, Inc., (C & C), 2013, Archaeolog ical assessment, "Horn Mountain" prospect, blocks 8**  **2 (OCS-G-24044), 126 (OCS-G-18194), and 127 (OCS-G-19925), Mississip**  **pi Canyon Area, report No., 130271.**

**Coffeen, J. A., 1978, Seismic Exploration Fundament als: Tulsa, the Petroleum Publishing Co., p. 125.** 

**Minerals Management Service, 2005, Notice to lessee s and operators of federal oil, gas, and sulphur le**  **ases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, Archaeological resourc e surveys and reports:**  **U. S. Department of the Interior, Minerals Manageme nt Service, Gulf of Mexico, NTL 2005-G07.** 

**Minerals Management Service, 2008a, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, information requiremen ts for exploration plans**  **and development operations coordination documents: U. S. Department of the Interior, Minerals Manageme**  **nt Service, Gulf of Mexico, NTL 2008-G04.** 

**Minerals Management Service, 2008b, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, shallow hazards requir ements: U. S.**  **Department of the Interior, Minerals Management Ser vice, Gulf of Mexico, NTL 2008-G05.** 

**Minerals Management Service, 2010, Notice to lessee s and operators of federal oil and gas leases in th**  **e outer continental shelf, Gulf of Mexico OCS region, deepwater benthic**  **communities: U. S. Department of the Interior, Min erals Management**  **Service, Gulf of Mexico, NTL 2009-G40. Effective D ate January 27, 2010.** **10344 Sam Houston Park Dr. Houston, Texas 77064**  **713.351.7900 [o] 713.351.7996 [f] www.gemsinc.com** 

**November 15, 2013 Project No. 0413-2235** 

**Plains Exploration and Production Company**

**400 East Kaliste Saloom Road**

**Suite 1100 Lafayette, LA 70508** 

**Attention: Mr. Brian Brennan**



### Site Clearance Letter for Proposed Wellsite MC 127-C Block 127 (OCS-G-19925) Mississippi Canyon Area
Gulf of Mexico

**Plains Exploration and Production Company (PXP) con tracted Geoscience Earth & Marine Services**  **(GEMS) to provide an assessment of the seafloor and shallow geologic conditions to determine the**  **favorability of drilling operations for the propose d location MC 127-C in Block 127 (OCS G-19925),**  **Mississippi Canyon Area, Gulf of Mexico. This lett er addresses specific seafloor and subsurface**  **conditions around the proposed location to the limi t of investigation, a depth of about 5,038 ft below**  **the mudline (bml).** 

**Seafloor conditions appear favorable within 2,000 f t of the proposed surface location. The Horn Mount**  **ain truss spar, numerous existing wells, and three pipe**  **lines lie within 6,000 ft of the proposed MC 127-C location. Logs from offset wells show intermittent**  **sand layers within the upper 5,000 ft of sediment. There is a negligible to low potential for encounte**  **ring overpressured sands or shallow gas within the limit**  **of investigation.**

**This letter provides details specific to the well l ocation, including: available data, Notice to Lesse**  **es (NTL) requirements, man-made features, and wellsite condi**  **tions.**



### Proposed Well Location

**The surface location for the Proposed Exploration W ellsite MC 127-C lies in the southwestern portion o**  **f MC 127. PXP provided the following coordinates:** 

Table 1. Proposed Location Coordinates

Proposed Wellsite MC 127-C

Spheroid & Datum: Clarke 1866, NAD27 Projection: UTM Zone 16 North Line Reference Block Calls (MC 127)

**X: 1,304,040 ft Latitude: 28o 51’ 04.38509” N Inlin e 6758 5,160 ft FWL** 

**Y: 10,471,700 ft Longitude: 88o 03’ 03.93729” W Cro ssline 6534 1,460 ft FSL** 

**PXP will drill this well using a dynamically positi oned drilling vessel. Our assessment addresses the**  **seafloor conditions within a 2,000-ft radius around the proposed wellsite location.** 



### Available Data

**The following discussion is based on the findings p rovided within the geohazard report “Geologic and**  **Stratigraphic Assessment, Blocks 82, 126, and 127, Mississippi Canyon Area, Gulf of Mexico” (GEMS**  **Project No. 0413-2235). The text, maps, and figure s included in the report provide detail on the regi**  **onal Proposed Wellsite MC 127-C Clearance Letter** 

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 2 FORUM ENERGY TECHNOLOGIES, INC. **geology of the Study Area. PXP provided an explora tion 3-D seismic time volume for the geohazard**  **analysis, covering an approximate 135.5 square-mile "Survey Area" that includes all or portions of**  **Federal lease Blocks MC 37-39, 81-84, 125-128, and 169-172 (Figure C-1). Sub-seafloor mapping was**  **limited to an approximate 27 square-mile “Study Are a” covering all of GC 82, 126, and 127. PXP also**  **provided high-resolution geophysical data collected by C & C Technologies, Inc., (C & C) in May and**  **June 2013 using an AUV (Autonomous Underwater Vehic le) over the three-block Study Area (Figure C**  **1). These data included 1.5-4.5 kHz subbottom prof iler, 230-kHz side-scan sonar, and 3-meter bin**  **multibeam bathymetry data.**

Figure C-1. **Seafloor Rendering of the Mississippi Canyon Survey Area.** 



### Attachments

**Wellsite maps are centered on the Proposed Explorat ion Wellsite MC 127-C location and are displayed at**  **a 1 inch = 1,000 ft scale (1:12,000). The maps inc luded in this letter are as follows:** 

**Map No. MC 127-C-1: Bathymetry Map Map No. MC 127-C-2: Seafloor Features Map**  **Map No. MC 127-C-3: Side-Scan Sonar Mosaic Map No. MC 127-C-4: Geologic Features Map**  

### 3-D Coverage Area

AUV Coverage Area

Study Area

Platform

Existing Well Location

Existing Pipeline

Location

Proposed Well Location



### Horn Mountain
**Spar Proposed Wellsite MC 127-C Clearance Letter** 

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 3 FORUM ENERGY TECHNOLOGIES, INC. **The illustrations accompanying this letter were ext racted from the available datasets and are listed b**  **elow:**

**Illustration MC 127-C-1: Subbottom Profiler Line Showing Near-Surface Conditions Near**  **Proposed Wellsite MC 127-C**
**Illustration MC 127-C-2: Portions of Inline 6758 and Crossline 6534 Showing Conditions Beneath** 

**Proposed Wellsite MC 127-C Illustration MC 127-C-3: Tophole Prognosis Chart,**  **Proposed Wellsite MC 127-C, Mississippi**

**Canyon, Block 127 Illustration MC 127-C-4: Correlation Between Propo**  **sed MC 127-C and Existing Wells**



### NTL Requirements

**The following report complies with the Bureau of Oc ean Energy Management (BOEM) Notice to Lessees**  **(NTL’s) 2009-G40, 2008-G04, and 2008-G05 (MMS, 2010 and 2008a, b). The Federal lease Block**  **MC 127 is considered archaeologically significant ( NTL 2011-JOINT-G01, BOEM, 2011); therefore,**  **requirements set forth in NTL 2005-G07 (MMS, 2005) are applicable in terms of high-probability for his**  **toric resources. C & C prepared an archaeological assess**  **ment to comply with the Archaeological Resource Surveys and Reports requirements and submitted the**  **report to PXP in August 2013 (C & C, 2013).**

**As specified in NTL 2008-G05 (MMS, 2008b), GEMS ext racted the power spectrum diagram from the 3-D**  **seismic data cube provided by PXP at the proposed w ellsite (Figure C-2). The extraction was generated** 

**within a 500-ft radius of the intersection of the i nline and crossline at the proposed wellsite. The** 
**extraction time interval consisted of the seafloor to one second below the mudline. We converted the**  **amplitude vs. frequency spectrum, generated by the SMT software, to power vs. frequency by squaring**  **the amplitude values as described by J. A. Coffeen, 1978.** 

Figure C-2. **Power Spectrum Curve, Proposed Wellsite MC 127-C**

**0 0.1**  **0.2 0.3**  **0.4 0.5**  **0.6 0.7**  **0.8 0.9**  **1**

**0 10 20 30 40 50 60 70 80 90 100 110 120**Power (Amp2)

Frequency (Hz) POWER SPECTRUM**Proposed Wellsite MC 127-C Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 4 FORUM ENERGY TECHNOLOGIES, INC. 

### Man-Made Features

**The Proposed Wellsite MC 127-C is located in the Ho rn Mountain development area (Figure C-1).**  **Several wells have previously been drilled near the proposed MC 127-C location in both MC 126 and 127.**  **Table 2 provides a summary of the exploration wells drilled within 12,000 feet of the proposed MC 127-**  **C**

**well:**

Table 2. Existing Well Locations Near the Proposed Wellsite

Surface
Area / Block Well

Name Operator Well Status Distance / Direction from Proposed

Surface Location

**MC 127 2**  **Plains Exploration & Production Company**  **Temporarily**

**Abandoned 3,955 ft/Northeast** 

**MC 127 1; A001** 

**through**

**A010 Plains Exploration &** 

**Production Company Completed**  **5,528 ft to 5,687 ft**
**/North-Northwest**

**MC 126 1**  **Plains Exploration & Production Company**  **Plugged and**

**Abandoned 11,753 ft/Northwest** 

**Note: Latest infrastructure update from the BOEM da tabase on October, 2013 (BOEM, 2013).** 

**Plains' truss spar, approximately 5,628 ft north-no rthwest of the Proposed MC 127-C location in west**  **central MC 127, serves as the production facility f or the Horn Mountain development area (Figure C-1).**  **Oil is exported from the spar to the north-northwes t to Main Pass (MP) 289 through Plains' 12-inch**  **pipeline. Plains' 10-inch gas pipeline trends para llel to the oil pipeline to VK 998 then extends nor**  **th to northeast to MP 260. A 2-inch, BP operated service**  **pipeline lies 1,035 ft west of the proposed locati on**  **(Maps MC 127-C-1 through MC 127-C-4). The pipeline trends south from the Horn Mountain spar to** 

**MC 258.**

**No side-scan sonar contacts are located within a 2, 000 ft radius of the proposed location (Maps MC 127** 

**- C-3 and MC 127-C-4), C & C, 2013.** 



### Wellsite Conditions

**The proposed location is clear of any constraining seafloor conditions as defined by the AUV and 3-D**  **seismic datasets. Interbedded sand layers are like ly below 517 ft bml, increasing in thickness with d**  **epth below 2,723 ft bml. The proposed wellbore will int**  **ersect one buried fault at about 478 ft bml.**



### Water Depth and Seafloor Conditions

**Seafloor conditions are favorable at the proposed w ellsite location. The water depth at the proposed**  **surface location is -5,509 ft (Map MC 127-C-1). Th e seafloor slopes to the southeast at 0.4°.** 

**MC 127-C is situated along a gently-dipping seafloo r approximately 1.9 miles west of Dorsey Canyon and**  **2.5 miles southeast of Petit Bois Dome (Figure C-1) . Overall, the seabed is relatively smooth at the**  **proposed location (Map MC 127-C-2). MC 127-C lies along the eastern edge of an area containing subtle**  **lobe features and low-relief, slightly irregular se afloor. These features reflect the seafloor expres**  **sion of thin (3-5 ft), buried failure deposits in the near-**  **surface sediments (Map MC 127-C-2 and Illustration MC 127-C-1). Approximately 6 ft of normally consol**  **idated, very soft hemipelagic silty clays likely co ver**  **the thin slump deposits.**



### Deepwater Benthic Communities

**No features or areas were interpreted within 2,000 ft of the proposed location that are capable of**  **supporting high-density chemosynthetic or other dee pwater benthic communities. The side-scan sonar**  **mosaic indicate a homogenous seabed in the vicinity of the proposed location, suggesting normal Gulf o**  **f Mexico surficial sediments (Map MC 127-C-3).** **Proposed Wellsite MC 127-C Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 5 FORUM ENERGY TECHNOLOGIES, INC. 

### Stratigraphy

**Stratigraphic conditions are shown on Illustrations MC 127-C-2 and MC 127-C-3. The surficial and**  **shallowest units, seafloor to Horizon 20 (to about 517 ft bml), will likely consist of an approximate**  **6-ft very soft silty clay hemipelagic drape overlying stratif**  **ied, normally consolidated hemipelagic clays, silty clays,**  **and muddy turbidites. Thin, clay-rich slump deposi ts are evident in the upper 25 ft of sediment at th**  **e proposed location.** 

**The sedimentary section below Horizon 20 to the lim it of investigation (5,038 ft bml) consists primari**  **ly of interbedded hemipelagic and pelagic clays, turbidit**  **es, and mass-transport complexes (Illustration MC 127-C-3). Well logs from the nearby Plains MC 1**  **27 #1 and #2 wells indicate a generally clay-prone shallow section with interbedded thin sand layers t**  **ypically below Horizon 20 (517 ft bml); Illustratio n**  **MC 127-C-4. Sands are likely to increase in thickn ess below Horizon 50 (2,723 ft bml) at the Proposed** 

**MC 127-C location.**



### Faults

**No seafloor faults will be penetrated by the propos ed wellsite (Illustrations MC 127-C-1 through MC 12**  **7- C-4). A vertical wellbore at the proposed location**  **will intersect a buried fault at a depth of approx imately**  **478 ft bml (-5,987 ft bsl), Illustration MC 127-C-3 The buried fault generally trends east-west and i**  **s downthrown to the north (Map MC 127-C-4). Engineer**  **s should be aware of the potential for lost circulation across the fault plane.** 



### Shallow Gas and Shallow Water Flow

**Significant shallow gas is not expected at this wel lsite within the upper 5,038 ft of sediment (Illust**  **rations MC 127-C-1 through MC 127-C-4). The potential for**  **shallow water flow at this well location is conside red**  **low (Illustration MC 127-C-3).**

Shallow Gas. **The potential for encountering shallow gas is asses sed as negligible in the**  **clay-prone stratigraphic units within the upper 1,0 21 ft bml and from 1,116 ft to 1,725 ft bml. There**  **is a low potential for encountering shallow gas for the**  **remaining stratigraphic sequences from 1,021 ft to 1,116 ft bml and below 1,725 ft bml to the limit of**  **investigation. Minor amounts of shallow gas may b e**  **encountered within isolated sand layers.**

**The closest subsurface high-amplitude event to the proposed borehole is approximately 642 ft north**  **northeast of this location at 890 ft bml (Map MC 12 7-C-4). This subsurface amplitude anomaly is**  **identified along a continuous moderate-amplitude re flector and likely represents lithologic variation**  **in the section rather than significant gas accumulation.**  **Although likely lithologic, any gas associated with the**  **amplitude anomalies closest to the proposed locatio n would be small areas of biogenic gas within**  **coarse-grained sediments and not likely to impact t he proposed location.** 

Shallow Water Flow. **The potential for shallow water flow at this well l ocation is considered**  **negligible to low based on the lack of regionally e xtensive sand-prone complexes in the shallow sectio**  **n, the lack of reported water flow incidents from the**  **nearby existing wells, and offset well log data. A low**  **potential for shallow water flow exists from 618 ft to 1,116 ft bml and below 1,725 ft bml to the limi**  **t of investigation (5,038 ft bml). Sand layers are poss**  **ible within these intervals; however, any fluids encountered are not likely to be significantly over**  **pressured. A negligible potential for overpressure d**  **sands is assessed within the upper 618 ft of sedime nt and from 1,116 ft to 1,725 ft bml (Illustration**  **MC 127-C-3).**



### Results

**Numerous existing infrastructure including the Horn Mountain truss spar, wells, and pipelines lie with**  **in 6,000 ft of the proposed MC 127-C location. The pr**  **obability for encountering sand in the shallow sect ion**  **increases below 517 ft bml. There is a negligible to low potential for encountering overpressured san**  **ds or shallow gas within the limit of investigation.**  **Engineers should be aware of the potential for a lo ss of** 

**circulation across the buried fault at about 478 ft bml.** **Proposed Wellsite MC 127-C Clearance Letter**

**Plains Exploration and Production Company //**  **November 15, 2013**

**Geoscience Earth & Marine Services** // 6 FORUM ENERGY TECHNOLOGIES, INC. 

### Closing

**We appreciate the opportunity to be of service to P lains Exploration and Production Company and look**  **forward to working with Plains on future projects.**

**Sincerely,**

GEOSCIENCE EARTH & MARINE SERVICES

**Erin Williams Janes Daniel Lanier Project Manager/Senior Geoscientist Director** 

**Attachments (4 Maps and 4 Figures)**

**Distribution: Mr. Brian Brennan, Plains Exploration and Productio**  **n Company, (6 copies)**

REFERENCES

**BOEM (Bureau of Ocean Energy Management), 2011, Not ice to lessees and operators (NTL) of federal oil a**  **nd gas leases and pipeline right-of-way (ROW) holders on the oute**  **r continental shelf (OCS), Revisions to the list of OCS lease blocks**  **requiring archaeological resource surveys and repor ts: U. S. Department of the Interior, Bureau of Oc**  **ean Energy Management, Bureau of Safety and Environmental Enfo**  **rcement Gulf of Mexico Region (GOMR), NTL 2011-JOIN T-G01.**  **Effective Date December 29, 2011.**

**Bureau of Ocean Energy Management, 2013, ASCII Data Files, published on the BOEM Gulf of Mexico Region**  **Homepage, <http://www.gomr.boem.gov/homepg/pubinfo/freeasci/f**  **reedesc.html>, accessed October, 2013.**

**C & C Technologies, Inc., (C & C), 2013, Archaeolog ical assessment, "Horn Mountain" prospect, blocks 8**  **2 (OCS-G-24044), 126 (OCS-G-18194), and 127 (OCS-G-19925), Mississip**  **pi Canyon Area, report No., 130271.**

**Coffeen, J. A., 1978, Seismic Exploration Fundament als: Tulsa, the Petroleum Publishing Co., p. 125.** 

**Minerals Management Service, 2005, Notice to lessee s and operators of federal oil, gas, and sulphur le**  **ases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, Archaeological resourc e surveys and reports:**  **U. S. Department of the Interior, Minerals Manageme nt Service, Gulf of Mexico, NTL 2005-G07.** 

**Minerals Management Service, 2008a, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, information requiremen ts for exploration plans**  **and development operations coordination documents: U. S. Department of the Interior, Minerals Manageme**  **nt Service, Gulf of Mexico, NTL 2008-G04.** 

**Minerals Management Service, 2008b, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, shallow hazards requir ements: U. S.**  **Department of the Interior, Minerals Management Ser vice, Gulf of Mexico, NTL 2008-G05.** 

**Minerals Management Service, 2010, Notice to lessee s and operators of federal oil and gas leases in th**  **e outer continental shelf, Gulf of Mexico OCS region, deepwater benthic**  **communities: U. S. Department of the Interior, Min erals Management**  **Service, Gulf of Mexico, NTL 2009-G40. Effective D ate January 27, 2010.** **10344 Sam Houston Park Dr. Houston, Texas 77064**  **713.351.7900 [o] 713.351.7996 [f] www.gemsinc.com** 

**June 11, 2014 Project No. 0514-2387** 

**Freeport-McMoRan Oil & Gas**

**400 East Kaliste Saloom Road**

**Suite 1100 Lafayette, LA 70508** 

**Attention: Mr. Brian Brennan**



### Site Clearance Letter for Proposed Wellsite MC 126-D Block 126 (OCS-G-18194) Mississippi Canyon Area
Gulf of Mexico

**Freeport-McMoRan Oil & Gas (FMI) contracted Geoscie nce Earth & Marine Services (GEMS) to provide**  **an assessment of the seafloor and shallow geologic conditions to determine the favorability of drillin**  **g operations for the proposed location MC 126-D in Bl**  **ock 126 (OCS G-18194), Mississippi Canyon Area, Gulf of Mexico. This letter addresses specific sea**  **floor and subsurface conditions around the proposed location to the limit of investigation, a depth of**  **about 814 ft below the mudline (bml).**

**Seafloor conditions appear favorable within the vic inity of the proposed surface location. Logs from**  **offset wells show minor sand layers below 339 ft bml. The**  **re is a negligible potential for encountering overpressured sands or significant shallow gas with**  **in the limit of investigation based on offset well information, the thin overburden above salt, and am**  **plitude analysis. Caution is recommended while drilling through a potentially faulted unit below 3**  **39 ft bml.**

**This letter provides details specific to the well l ocation, including: available data, Notice to Lesse**  **es (NTL) requirements, man-made features, and wellsite condi**  **tions.**



### Proposed Well Location

**The surface location for the Proposed Exploration W ellsite MC 126-D lies in the north-central portion**  **of MC 126. FMI provided the following coordinates:** 

Table 1. Proposed Location Coordinates

Proposed Wellsite MC 126-D

Spheroid & Datum: Clarke 1866, NAD27 Projection: UTM Zone 16 North Line Reference Block Calls (MC 126)

**X: 1,292,034 ft Latitude: 28o 52’ 58.19623” N Inlin e 6751 6,846 ft FEL** 

**Y: 10,483,301 ft Longitude: 88o 05’ 20.17169” W Cro ssline 6941 2,779 ft FNL** 

**FMI will drill this well using a dynamically positi oned drilling vessel. Our assessment addresses the**  **seafloor conditions within a 2,000-ft radius around the proposed wellsite location.** 



### Available Data

**The following discussion is based on the findings p rovided within the geohazard report “Geologic and**  **Stratigraphic Assessment, Blocks 82, 126, and 127, Mississippi Canyon Area, Gulf of Mexico” (GEMS**  **Project No. 0413-2235) submitted to Plains Explorat ion and Production Company (PXP) in September**  **2013. The text, maps, and figures included in the report provide detail on the regional geology of th**  **e Proposed Wellsite MC 126-D Clearance Letter** 

**Freeport-McMoRan Oil & Gas //**  **June 11, 2014**

**Geoscience Earth & Marine Services** // 2 FORUM ENERGY TECHNOLOGIES, INC. **Study Area. PXP provided an exploration 3-D seismi c time volume for the geohazard analysis, covering**  **an approximate 135.5 square-mile "Survey Area" that includes all or portions of Federal lease Blocks**  **MC 37-39, 81-84, 125-128, and 169-172 (Figure D-1). Sub-seafloor mapping was limited to an**  **approximate 27 square-mile “Study Area” covering al l of GC 82, 126, and 127. PXP also provided high**  **resolution geophysical data collected by C & C Tech nologies, Inc., (C & C) in May and June 2013 using**  **an AUV (Autonomous Underwater Vehicle) over the thr ee-block Study Area (Figure D-1). These data**  **included 1.5-4.5 kHz subbottom profiler, 230-kHz si de-scan sonar, and 3-meter bin multibeam bathymetry** 

**data.**

Figure D-1. **Seafloor Rendering of the Mississippi Canyon Survey Area.** 



### Attachments

**Wellsite maps are centered on the Proposed Explorat ion Wellsite MC 126-D location and are displayed at**  **a 1 inch = 1,000 ft scale (1:12,000). The maps inc luded in this letter are as follows:** 

**Map No. MC 126-D-1: Bathymetry Map Map No. MC 126-D-2: Seafloor Features Map**  **Map No. MC 126-D-3: Side-Scan Sonar Mosaic Map No. MC 126-D-4: Geologic Features Map** **Proposed Wellsite MC 126-D Clearance Letter**

**Freeport-McMoRan Oil & Gas //**  **June 11, 2014**

**Geoscience Earth & Marine Services** // 3 FORUM ENERGY TECHNOLOGIES, INC. **The illustrations accompanying this letter were ext racted from the available datasets and are listed b**  **elow:**

**Illustration MC 126-D-1: Subbottom Profiler Line Showing Near-Surface Conditions Near**  **Proposed Wellsite MC 126-D**
**Illustration MC 126-D-2: Portions of Inline 6751 and Crossline 6941 Showing Conditions Beneath** 

**Proposed Wellsite MC 126-D Illustration MC 126-D-3: Tophole Prognosis Chart,**  **Proposed Wellsite MC 126-D, Mississippi**

**Canyon, Block 126 Illustration MC 126-D-4: Correlation Between Propo**  **sed MC 126-D and Existing Well**



### NTL Requirements

**The following report complies with the Bureau of Oc ean Energy Management (BOEM) Notice to Lessees**  **(NTL’s) 2009-G40, 2008-G04, and 2008-G05 (MMS, 2010 and 2008a, b). BOEM’S NTL 2014-G03**  **(BOEM, 2014a) extends the expiration of NTL 2008-G0 4 and 2008-G05. The Federal lease Block MC 126**  **is considered archaeologically significant (NTL 201 1-JOINT-G01, BOEM, 2011); therefore, requirements s**  **et forth in NTL 2005-G07 (MMS, 2005) are applicable in**  **terms of high-probability for historic resources. C & C**  **prepared an archaeological assessment to comply wit h the Archaeological Resource Surveys and**  **Reports requirements and submitted the report to PX P in August 2013 (C & C, 2013).** 

**As specified in NTL 2008-G05 (MMS, 2008b), GEMS ext racted the power spectrum diagram from the 3-D**  **seismic data cube provided by PXP at the proposed w ellsite (Figure D-2). The extraction was generated**  **within a 2,000-ft radius of the intersection of the inline and crossline at the proposed wellsite. Th**  **e extraction time interval consisted of the seafloor**  **to the Top of Salt. We converted the amplitude vs. frequency spectrum, generated by the SMT software,**  **to power vs. frequency by squaring the amplitude values as described by J. A. Coffeen, 1978.** 

Figure D-2. **Power Spectrum Curve, Proposed Wellsite MC 126-D**

**0 0.1**  **0.2 0.3**  **0.4 0.5**  **0.6 0.7**  **0.8 0.9**  **1**

**0 10 20 30 40 50 60 70 80 90 100 110 120**Power (Amp2)

Frequency (Hz) POWER SPECTRUM**Proposed Wellsite MC 126-D Clearance Letter**

**Freeport-McMoRan Oil & Gas //**  **June 11, 2014**

**Geoscience Earth & Marine Services** // 4 FORUM ENERGY TECHNOLOGIES, INC. 

### Man-Made Features

**The Proposed Wellsite MC 126-D is located in the Ho rn Mountain development area (Figure D-1).**  **Several wells have previously been drilled near the proposed MC 126-D location in MC 82, 126, and 127.**  **Table 2 provides a summary of the exploration wells drilled within 6,000 feet of the proposed MC 126-D** 

**well:**

Table 2. Existing Well Locations Near the Proposed Wellsite

Surface
Area / Block Well

Name Operator Well Status Distance / Direction from Proposed

Surface Location

**MC 82 #4**  **Plains Exploration & Production Company**  **Plugged and**

**Abandoned 4,964 ft/Northwest** 

**MC 82 #5**  **Freeport McMoRan Oil &**

**Gas LLC Temporarily** 

**Abandoned 5,136 ft /Northwest** 

**MC 126 #1**  **Plains Exploration & Production Company**  **Plugged and**

**Abandoned 5,143 ft/Southeast** 

**Note: Latest infrastructure update from the BOEM da tabase on May, 2014 (BOEM, 2014b).** 

**Plains' truss spar, approximately 12,085 ft southea st of the Proposed MC 126-D location in west-centra**  **l MC 127, serves as the production facility for the H**  **orn Mountain development area (Figure D-1). Oil is exported from the spar to the north-northwest to Ma**  **in Pass (MP) 289 through Plains' 12-inch pipeline. Plains' 10-inch gas pipeline trends parallel to the**  **oil pipeline to VK 998 then extends north to north east to**  **MP 260. These pipelines lie about 1.9 to 2.0 miles east of the proposed location. A 2-inch, BP opera**  **ted service pipeline trends south from the Horn Mountai**  **n spar to MC 258.**

**No side-scan sonar contacts are located within a 4, 000 ft radius of the proposed location (Maps MC 127** 

**- D-3), C & C, 2013. No archaeological avoidances or**  **known shipwrecks exist near the proposed site. Small shallow depressions and linear features can b**  **e seen on the side-scan sonar and multibeam bathymetry data within 2,500 ft of the proposed loc**  **ation (Figure D-3). The closest of the depressions lies**  **about 725 ft east-northeast of the proposed MC 126- D well. These areas are likely associated with**  **previous exploration activities in the immediate ar ea.** 

Figure D-3. **Rendering and Sonar Mosaic Showing Seabed Depressions Associated**  **With Exploration Activities Proposed Wellsite MC 126-D Clearance Letter** 

**Freeport-McMoRan Oil & Gas //**  **June 11, 2014**

**Geoscience Earth & Marine Services** // 5 FORUM ENERGY TECHNOLOGIES, INC. 

### Wellsite Conditions

**The proposed location is clear of any constraining seafloor conditions as defined by the AUV and 3-D**  **seismic datasets. The proposed wellbore will likel y penetrate interbedded sand layers within a highly**  **faulted unit below 339 ft bml. The existing nearby Plains/Freeport McMoRan #4 and #5 wells in MC 82**  **reported successful jet in operations and the 26” o pen hole section was drilled successfully to the To**  **p of Salt. No gas accumulations or shallow water flow w**  **as reported from these wells.**



### Water Depth and Seafloor Conditions

**The water depth at the proposed surface location is –4,526 ft (Map MC 126-D-1). The seafloor slopes t**  **o the southeast at 2.5°. The MC 126-D location is si**  **tuated atop Petit Bois Dome, an uplifted bathymetri c**  **high (Figure D-1). Overall, the seabed within the vicinity of the surface location is relatively smoo**  **th and, based on the current geophysical data provided, app**  **ears to be stable (Maps MC 126-D-1 and MC 126-D 2, Illustration MC 126-D-1). An approximate 6 ft s**  **urficial drape of soft, high water content silty cl ays**  **covers the seafloor at the proposed wellsite (Illus tration MC 126-D-1).** 

**The rugged escarpment forming the flank of Petit Bo is Dome lies about 1,750 ft to the southeast.**  **Although there is evidence of previous slope failur e along the steeply sloping escarpment, major slope**  **failure events are not expected at present time. V arying natural and anthropogenic processes can act**  **to reduce stability, but the primary driver is sea lev**  **el change and its relationship to sediment loading above**  **salt. During present time, sea level is at a high stand and sedimentation rates are low; therefore, t**  **he slopes are considered relatively stable over the li**  **fe of a well.**



### Deepwater Benthic Communities

**No features or areas were interpreted within 2,000 ft of the proposed location that are capable of**  **supporting high-density chemosynthetic or other dee pwater benthic communities. The side-scan sonar**  **mosaic indicates a homogenous seabed in the vicinit y of the proposed location, suggesting normal Gulf**  **of Mexico surficial sediments (Map MC 126-D-3).**



### Stratigraphy

**Stratigraphic conditions are shown on Illustrations MC 126-D-2 and MC 126-D-3. The surficial and**  **shallowest units, seafloor to Horizon 20 (to about 339 ft bml), will likely consist of an approximate**  **6-ft very soft silty clay hemipelagic drape overlying stratif**  **ied, normally consolidated hemipelagic clays, silty clays,**  **and muddy turbidites (Illustrations MC 126-D-1 thro ugh MC 126-D-3).** 

**The sedimentary section below Horizon 20 to the lim it of investigation (814 ft bml) consists primarily**  **of interbedded hemipelagic and pelagic clays, turbidit**  **es, and mass-transport complexes (Illustration MC 126-D-3). Well logs from the nearby MC 82 #4 an**  **d MC 126 #5 wells in MC 82 indicate a generally clay-prone shallow section with minor interbedded s**  **and layers below Horizon 20 (339 ft bml); Illustrat ion** 
**MC 126-D-4.**

**The Top of Salt is estimated to be 814 ft bml (-5,3 40 ft bsl) and dips to the southeast at about 5.5°.** 



### Faults

**No seafloor faults will be penetrated by the propos ed wellsite (Illustrations MC 126-D-1 through MC 12**  **6- D-4). A vertical wellbore at the proposed location**  **will intersect a buried fault at a depth of approx imately**  **546 ft bml (-5,072 ft bsl), Illustration MC 126-D-3 . There may be additional faults characterized by**  **minor offsets below the resolution of the 3-D dataset, pa**  **rticularly in the highly fractured unit below Horiz on 20 to**  **the Top of Salt (339 ft to 814 ft bml). Engineers should be aware of the potential for lost circulati**  **on across fault planes.** **Proposed Wellsite MC 126-D Clearance Letter**

**Freeport-McMoRan Oil & Gas //**  **June 11, 2014**

**Geoscience Earth & Marine Services** // 6 FORUM ENERGY TECHNOLOGIES, INC. 

### Shallow Gas and Shallow Water Flow

**Significant shallow gas is not likely to be encount ered within the shallow sediments above Top of Salt**  **(814 ft bml), Illustration MC 126-D-3. The potenti al for shallow water flow is considered negligible.** 

Shallow Gas. **There are no apparent high-amplitude anomalies or o ther direct hydrocarbon**  **indicators directly below or in the immediate vicin ity of the proposed wellsite (Map MC 126-D-4 and**  **Illustration MC 126-D-2). Sand layers are possible within the shallow section, particularly below Hor**  **izon 20 (339 ft bml) to the Top of Salt. However, there**  **is a negligible potential for encountering signifi cant gas**  **accumulations within the stratigraphic sequence abo ve salt. The closest occurrence of a high-amplitud**  **e anomaly is approximately 2,750 ft northwest of the**  **proposed wellsite within the Horizon 20 to Top of S alt**  **interval (Map MC 126-D-4). This anomaly poses no t hreat to the proposed wellsite.** 

Shallow Water Flow. **The potential for shallow water flow at this well l ocation is considered**  **negligible based on the thin sediment section above salt at the location, the lack of regionally exten**  **sive sand-prone complexes in the shallow section, the la**  **ck of reported water flow incidents from the nearby existing wells, and offset well log data. Sand lay**  **ers are possible below Horizon 20 (339 ft bml); how ever,**  **any fluids encountered are not likely to be overpre ssured.** 



### Results

**The probability for encountering minor sand in the shallow section increases below 339 ft bml to the T**  **op of Salt (814 ft bml). There is a negligible potent**  **ial for encountering overpressured sands or shallow gas**  **within the limit of investigation. Engineers shoul d be aware of the potential for a loss of circulati**  **on across the buried fault at about 546 ft bml. It is possib**  **le that additional faults exhibiting minor offset m ay be**  **penetrated below 339 ft bml; however, these faults are below the resolution of the current 3-D data** 

**volume.**



### Closing

**We appreciate the opportunity to be of service to F reeport-McMoRan Oil & Gas and look forward to**  **working with FMI on future projects.**

**Sincerely,**

GEOSCIENCE EARTH & MARINE SERVICES

**Erin Williams Janes Daniel Lanier Project Manager/Senior Geoscientist Director** 

**Attachments (4 Maps and 4 Figures)**

**Distribution: Mr. Brian Brennan, Freeport-McMoRan Oil & Gas, (6 c**  **opies)**

REFERENCES

**BOEM (Bureau of Ocean Energy Management), 2011, Not ice to lessees and operators (NTL) of federal oil a**  **nd gas leases and pipeline right-of-way (ROW) holders on the oute**  **r continental shelf (OCS), Revisions to the list of OCS lease blocks**  **requiring archaeological resource surveys and repor ts: U. S. Department of the Interior, Bureau of Oc**  **ean Energy Management, Bureau of Safety and Environmental Enfo**  **rcement Gulf of Mexico Region (GOMR), NTL 2011-JOIN T-G01.**  **Effective Date December 29, 2011.**

**Bureau of Ocean Energy Management, 2014a, Notice to lessees and operators of federal oil, gas, and sul**  **phur leases in the outer continental shelf, Gulf of Mexico OCS region:**  **Extension of prior notice to lessees, NTL 2014-G03**

**. Bureau of Ocean Energy Management, 2014b, ASCII Dat**  **a Files, published on the BOEM Gulf of Mexico Regio n**  **Homepage, <http://www.gomr.boem.gov/homepg/pubinfo/ freeasci/freedesc.html>, accessed May, 2014.** **Proposed Wellsite MC 126-D Clearance Letter**

**Freeport-McMoRan Oil & Gas //**  **June 11, 2014**

**Geoscience Earth & Marine Services** // 7 FORUM ENERGY TECHNOLOGIES, INC. **Bureau of Ocean Energy Management, 2014c, Seismic W ater Bottom Anomalies Map Gallery, published on the**  **BOEM Gulf of Mexico Region Homepage, <http://www.boem.gov/Oil**  **-and-Gas-Energy-Program/Mapping-and-Data/Map Gallery/Seismic-Water-Bottom-Anomalies-Map-Gallery.**  **aspx>, accessed May, 2014.**

**C & C Technologies, Inc., (C & C), 2013, Archaeolog ical assessment, "Horn Mountain" prospect, blocks 8**  **2 (OCS-G-24044), 126 (OCS-G-18194), and 127 (OCS-G-19925), Mississip**  **pi Canyon Area, report No., 130271.**

**Coffeen, J. A., 1978, Seismic Exploration Fundament als: Tulsa, the Petroleum Publishing Co., p. 125.** 

**Minerals Management Service, 2005, Notice to lessee s and operators of federal oil, gas, and sulphur le**  **ases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, Archaeological resourc e surveys and reports:**  **U. S. Department of the Interior, Minerals Manageme nt Service, Gulf of Mexico, NTL 2005-G07.** 

**Minerals Management Service, 2008a, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, information requiremen ts for exploration plans**  **and development operations coordination documents: U. S. Department of the Interior, Minerals Manageme**  **nt Service, Gulf of Mexico, NTL 2008-G04.** 

**Minerals Management Service, 2008b, Notice to lesse es and operators of federal oil, gas, and sulphur l**  **eases and pipeline right-of-way holders in the outer continental shelf**  **, Gulf of Mexico OCS region, shallow hazards requir ements: U. S.**  **Department of the Interior, Minerals Management Ser vice, Gulf of Mexico, NTL 2008-G05.** 

**Minerals Management Service, 2010, Notice to lessee s and operators of federal oil and gas leases in th**  **e outer continental shelf, Gulf of Mexico OCS region, deepwater benthic**  **communities: U. S. Department of the Interior, Min erals Management**  **Service, Gulf of Mexico, NTL 2009-G40. Effective D ate January 27, 2010.** 

### Freeport

- McMoRan Oil & Gas LLC Section 4

– Pg. 10 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 4

HYDROGEN SULFIDE INFORMATION

4.1 CONCENTRATION

FM O&G anticipate s encountering 0 ppm H 2 

### S during the proposed operations.

4.2 CLASSIFICATION

In accordance with Title 30 CFR 250.490(c )

, FM O&G requests that the area of
proposed operations be classified by the BOEM as H 2 

### S absent

.

### Freeport

- McMoRan Oil & Gas LLC Section 5

– Pg. 11 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 5
BIOLOGICAL, PHYSICAL AND SOCIOECONOMIC INFORMATION

5.1 DEEPWATER BENTHIC COMMUNITIES

The seafloor disturbing activities proposed in this plan are in water depths greater than 300 meters (984’) . Geoscience Earth & Marine Services, Inc. was contracted to provide an assessment of the shallow conditions at the proposed surface locations. The purpose of th e assessment was to address seafloor conditions that may impact exploratory drilling operations within 2,000 feet of the proposed well sites. FM O&G will avoid all high

- density deepwater benthic communities by 2,000 feet from each proposed
mud and cuttings discharge location and 250 feet from the location of all other seafloor
disturbances. As per NTL 2009

- G40, “Deepwater Benthic Communities,” a map showing the 2,000 foot radius around the well site is included as Attachment 5

- A

.

5.2 TOPOGRAPHIC FEATURES ( B ANKS)
Activities proposed in this EP do not fall within 305 meters (1000 feet) of a topographic

“N o Activity Z one ; ” therefore, no map is required per NTL No. 2009

- G39, “Biologically

Sensitive Underwater Features and Areas.”

5.3 TOPOGRAPHIC FEATURES STATEM ENT (SHUNTING)
All activities proposed under this EP will be conducted outside all Topog raphic Feature
Protective Zones; therefore shunting of drill cuttings and drilling fluids is not required per

NTL No. 2009

- G39, “Biologically Sensitive Underwater Features and Areas.”

5.4 LIVE BOTTOM S (PINNACLE TREND FEATURES) Mississippi Canyon Blocks 126 and 127 are not located within 61 meters (200 feet) of any pinnacle trend feature; therefore, a separate bathymetric map is not required per

NTL 2009

- G39, “Biolog ically Sensitive Underwater Features and Areas.”

5.5 LIVE BOTTOM S (LOW RELIEF) Mississippi Canyon Blocks 126 and 127 are not located within 30 meters (100 feet) of

any live bottom (low relief) feature with vertical relief equal to or greater than 8 feet;

t herefore, live bottom (low relief) maps are not required per NTL 2009

- G39, “Biologically

Sensitive Underwater Features and Areas.”

5.6 POTENTIALLY SENSITIVE BIOLOGICAL FEATURES MAP Mississippi Canyon Blocks 126 and 127 are not located within 30 meters (100 feet) of potentially sensitive biological features; therefore, biologically sensitive area maps are
not required.

### Freeport

- McMoRan Oil & Gas LLC Section 5

– Pg. 12 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 5.7 REMOTELY OPERATED VEHICLE (ROV) SURVEYS BOEM has determined there is enough data gathered in Grid Area Number 16;
therefore, FM O& G will not be conducting any ROV surveys either pre

- spud or post

- drill
operations per NTL No. 2008

- G06, “Remotely Operated Vehicle Surveys in Deepwater” (Extended by NTL BOEM 2014

- G05 , “Extension of Prior Notices to Lessees”).

5.8 THREATENED AND ENDANGERED SPECIES, CRITICAL HABITAT, AND

MARINE MAMMAL INFORMATION There are five (5) species of sea turtles that may be found in the Gulf of Mexico (see table below). NOAA fisheries currently list all five of these turtles as endangered (E) or threatened (T).

Species Scientific Name Status Potential

Presence Critical

Habitat Designated in

the Gulf of

Mexico Lease

Area Coastal

Sea Turtles Loggerhead Carettsa caretta T x x None
Green Chelonia mydas T,E x x None

Leatherback Dermochelys coriacea E x x None

Hawksbill Eretmochelys

imbricata E x x None

Kemp’s Ridley Lepidochelys kempli E x x None

In addition, there are 28 species of marine mammals that may be found in the Gulf of Mexico. The table provided below identifies the seven (7) species of marine mammals that are listed as endangered or threatened. Currently, there are no designated critical habitats for the listed species in the Gulf of Mexico Outer Continental Shelf; however, it
is possible that one or more of these species could be seen in the area during
operations.

Species S cientific Name Status Potential

Presence Critical

Habitat Designated in

the Gulf of

Mexico Lease

Area C oastal

Marine Mammals Sperm

Whale Physeter macrocephalus E x

-- None

Wes t Indian

Manatee Trichechus manatus
latirostris E

-- x Florida

### Freeport

- McMoRan Oil & Gas LLC Section 5

– Pg. 13 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) Species S cientific Name Status Potential

Presence Critical

Habitat Designated in

the Gulf of

Mexico Lease

Area C oastal

Blue Whale Balaenoptera

masculus E x

-- None

Fin Whale Balaenoptera physalus E x

-- None

Humpback

Whale Megaptera novaeangliae E x

-- None

North

Atlantic Right Whale Eubalaena glacialis E x

-- None

Sei Whale Balaenopiera borealis E x

-- None

There is one (1) species of fish that NOAA fisheries currently list as threatened (T) that may be found in the Gulf of Mexico. The Gulf sturgeon, also known as the Gulf of Mexico sturgeon, is an anadromous (breeding in freshwater after migrating up rivers from marine and estuarine environments) fish overwintering in estuaries, bays, and the Gulf of Mexico (see table below).

Species Scientific Name Status Potential

Presence Critical

Habitat Designated

in the Gulf of

Mexico Lease

Area Coastal

Fish

Gulf S turgeon Acipenser oxyrinchus (=oxyrhynchus)

desotoi T X X None

5.9 ARCHAEOLOGICAL REPORT Mississippi Canyon Blocks 126 and 127 have been determined to be located in an area
where historic shipwrecks may exist. In accordance with NTL 2005

- G07 “Archaeological Surveys and Reports,” and NTL 2011

- JOINT

- G01, “Revisions to the List of OCS Lease Blocks Requiring Archaeological Resource Surveys and Reports,” an Archaeological Survey Report is provided with this plan.

### Freeport

- McMoRan Oil & Gas LLC Section 5

– Pg. 14 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 5.1 0 AIR AND WATER QUALITY INFORMATION Air and water quality information is not required to be included in this plan per NTL No.

2008

- G04, “Information requirements for Exploration Plans and Development Operations Coordination Documents” (Extended by NTL No. BOEM 2014

- G0 5

, “Extension of Prior Notices to Lessees” ).

5.11 SOCIOECONOMIC INFORMATION Socioeconomic Information is not required to be included in this plan per NTL No. 2008

- G04, “Information Requirements for Exploration P lans and Development Operations

Coordination Documents.”

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10,472,500 10,475,000 10,477,500

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C & C 2013 AUV SURVEY.

EXISTING PIPELINE OR CABLE LOCATION, AS REPORTED BY BOEM. 

# H EXISTING WELL LOCATION AS REPORTED BY BOEM. 

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CIRCLE REPRESENTS 2000 FT RADIUS
AROUND PROPOSED WELLSITE.

WATER DEPTH CONTOUR IN FEET.
CONTOUR INTERVAL = 10 FOOT. 

### PLAINS EXPLORATION

& PRODUCTION COMPANY



## BATHYMETRY MAP

"HORN MOUNTAIN PROSPECT"

BLOCK 127

MISSISSIPPI CANYON AREA

GULF OF MEXICO

MAP NO. MC 127-A-1 0 1,000 2,000 500 Feet

DATE: 14 NOVEMBER 2013 FILE NAME: 2235_MC127-A-1_Bathy.mxd
PROJECT NO.:0413-2235 G RID N ORTH

NOTE: BATHYMETRY CONTOURS GENERATE D FROM MULTIBEAM BATHYMETRY DATA,
SUPPLEMENTED IN AUV SURVEY GA PS WITH THE 3-D DATA SET.

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C & C 2013 AUV SURVEY.

EXISTING PIPELINE OR CABLE LOCATION, AS REPORTED BY BOEM. 

# H EXISTING WELL LOCATION AS REPORTED BY BOEM. 

# ! . PROPOSED WELL LOCATION

CIRCLE REPRESENTS 2000 FT RADIUS
AROUND PROPOSED WELLSITE.

WATER DEPTH CONTOUR IN FEET.
CONTOUR INTERVAL = 10 FOOT. 

### PLAINS EXPLORATION

& PRODUCTION COMPANY



## BATHYMETRY MAP

"HORN MOUNTAIN PROSPECT"

BLOCK 127

MISSISSIPPI CANYON AREA

GULF OF MEXICO

MAP NO. MC 127-B-1 0 1,000 2,000 500 Feet

DATE: 14 NOVEMBER 2013 FILE NAME: 2235_MC127-B-1_Bathy.mxd
PROJECT NO.:0413-2235 G RID N ORTH

NOTE: BATHYMETRY CONTOURS GENERATE D FROM MULTIBEAM BATHYMETRY DATA,
SUPPLEMENTED IN AUV SURVEY GA PS WITH THE 3-D DATA SET.

# ! . B P

( S N

- 1 78

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# MC 171

OCS-G-34428 Apache Deepwater LLC 

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3 0 8 < < L I N E 3 1 1

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6 5 3 4 

### - 5 5 0 0

- 5 5

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### - 5 4 5 0

MC 127-C88°2'30"W88°3'0"W88°3'30"W 28°51'30"N

28°51'0"N

28°50'30"N1,302,5001,305,0001,307,500

10,470,000 10,472,500 10,475,000

3D SURVEY LINE.

C & C 2013 AUV SURVEY.

EXISTING PIPELINE OR CABLE LOCATION, AS REPORTED BY BOEM. 

# H EXISTING WELL LOCATION AS REPORTED BY BOEM. 

# ! . PROPOSED WELL LOCATION

CIRCLE REPRESENTS 2000 FT RADIUS
AROUND PROPOSED WELLSITE.

WATER DEPTH CONTOUR IN FEET.
CONTOUR INTERVAL = 10 FOOT. 

### PLAINS EXPLORATION

& PRODUCTION COMPANY



## BATHYMETRY MAP

"HORN MOUNTAIN PROSPECT"

BLOCK 127

MISSISSIPPI CANYON AREA

GULF OF MEXICO

MAP NO. MC 127-C-1 0 1,000 2,000 500 Feet

DATE: 14 NOVEMBER 2013 FILE NAME: 2235_MC127-C-1_Bathy.mxd
PROJECT NO.:0413-2235 G RID N ORTH

NOTE: BATHYMETRY CONTOURS GENERATE D FROM MULTIBEAM BATHYMETRY DATA,
SUPPLEMENTED IN AUV SURVEY GA PS WITH THE 3-D DATA SET.

# ! . << LINE 126LINE 204 >>

LINE 131 >>

LINE 133 >>

LINE 13 << LINE 128A LINE 125 >>

LINE 127 >>

LINE 129 >>

<< LINE 130<< LINE 203

<< LINE 132

LINE 134 >> << LINE 124

MC 126

OCS-G-18194 Freeport-McMoRan Oil & Gas LLC MC 82

OCS-G-35313 Freeport-McMoRan Oil & Gas LLC PLAINS #4 (G24044)

I N

L I N

E

6 7 5 1 CROSSLINE 6941

MC 126-D

- 4

6

5

0



### - 4

6

0

0 - 4

7

0

0 - 4 7 5 0

- 4 8 0 0

- 4

8

5

0 - 4 5 5 0

- 4

9

0

0

- 4

9

5

0 - 4

5

0

0

- 5

0

0

0 - 4

4

5

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- 5050 - 4

4

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0

- 5

1 0

0

- 5

1 5 0 - 4

3

5

0

- 5

2

0

0 - 5

2

5

0

- 5 3 0 088°5'0"W88°5'30"W88°6'0"W 28°53'30"N

28°53'0"N

28°52'30"N1,290,0001,292,5001,295,000

10,480,000 10,482,500 10,485,000



# ! . PROPOSED WELL LOCATION.

CIRCLE REPRESENTS 2000 FT RADIUS
AROUND PROPOSED WELLSITE.

3D SURVEY LINE.

C & C 2013 AUV SURVEY. 

# H EXISTING WELL LOCATION AS REPORTED BY BOEM.

WATER DEPTH CONTOUR IN FEET.
CONTOUR INTERVAL = 10 FOOT. 

### FREEPORT-MCMORAN

OIL & GAS LLC



## BATHYMETRY MAP

"HORN MOUNTAIN PROSPECT"

BLOCK 126

MISSISSIPPI CANYON AREA

GULF OF MEXICO

MAP NO. MC 126-D-1 0 1,000 2,000 500 Feet

DATE: 11 JUNE 2014 FILE NAME: 2387-D-1_Bathy.mxd
PROJECT NO.:0514-2387 G RID N ORTH

NOTE: BATHYMETRY CONTOURS GENERATED FROM MULTIBEAM BATHYMETRY DATA,
SUPPLEMENTED IN AUV SURVEY GAPS WITH THE 3-D DATA SET.

### Freeport

- McMoRan Oil & Gas LLC Section 6

– Pg. 15 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 6

WASTES AND DISCHARGES INFORMATION

6.1 PROJECTED GENERATED WASTES “Wastes You Will Generate, Treat and Downhole Dispose or Discharge to the Gulf of

Mexico” is included as Attachment 6

- A

**.**

6.2 MODELING REPORT

Mod eling reports are not required for the activit ies proposed in this plan.N/A N/A N/A N/A No Potable Water with 3% Erifon 95 1 Discharge at the seafloor or with deck drainage when tested

at surface No

Uncontaminated seawater used to

maintainproper draft 57,550 11,510 Hull discharge overboard based on 5 major ballast operations with rig

at operating draft requireing minimum ballast change NO

Sea Water with no additional chemicals 3,040 32 Hull discharge overboard No Cement Slurry 695 342 Discharge at seafloor during riserless operations No Hull discharge overboard No 333

833

833 Overboard upon samples passing the Static Sheen Test per Region 6

GOM GMG 290000 regulations
Overboard upon samples passing the Static Sheen Test per Region 6

GOM GMG 290000 regulations

Overboard upon samples passing the Static Sheen Test per Region 6

GOM GMG 290000 regulations Brines, NaCl, KCl, CaBr 2 , CaCl 2

Brines, NaCl, KCl, CaBr 2 , CaCl 2 2,000

5,000

5,000

N/A

Will you be covered by an individual or general NPDES permit? General NPDES Permit No. GMC290534 Well treatment fluids

Well completion fluids

Workover fluids

Desalinization unit discharge

Blowout prevent fluid

Ballast water

Bilge water

Excess cement at seafloor

Fire water
Cooling water Sea Water with no additional chemicals 35,273,200 587,887 Hull discharge overboard No No

No

No

Rejected water from the watermaker. 143,450 2,390 Gray water from living quarters 32,870 548 Chlorinate and discharge overboard No

Sanitary waste from living quarters, control

rooms and change rooms.

Will you conduct well treatment, completion, or workover?

Micellaneous discharges. If yes, only fill in those associated with your activity.

Will you produce hydrocarbons? If yes fill in for produced water.

N/A N/A N/A N/A N/A Deck Drainage Deck drainage from drilling floor 475 5 Hull discharge overboard No No

Brines, NaCl, KCl, CaBr 2 , CaCl 2 15,010 250 USCG approved MSD with chlorination Cuttings wetted with synthetic-based fluid Cuttings coated with synthetic drilling fluids,

including drilled out cement 7,200 60 Discharged to surface. Treated cutting will be discharged

overboard during drilling of the SBM intervals. Cutting will

be processed through a cutting dryer, substantially reducing

the ROC percentage. No

Domestic waste

Sanitary Cuttings wetted with water-based fluid Cuttings coated while drilling with WBM 1,931 322 Discharged to mudline prior to riser installation. Based on 6

days of drilling with WBM. No Answer yes or no

Will drilling occur? If yes, you should list muds and cuttings

Water-based drilling fluid Water, NaCI (salt), PHPA polymer and Barium

Sulfate (Barite) 35,000 6,000 Discharge at the mudline prior to the riser installation.

Nominal amount of unused flui may be discharged at the

surface. Based on 6 days of drilling with WBM. No TABLE 1. WASTES YOU WILL GENERATE, TREAT AND DOWNHOLE DISPOSE OR DISCHARGE TO THE GOM
Projected
Downhole Disposal Projected generated waste Projected ocean discharges

Type of Waste Composition Projected Amount
(bbls/well) Discharge Rate
(bbls/well/day) Discharge Method

### Freeport

- McMoRan Oil & Gas LLC Section 7

– Pg. 16 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 7

AIR EMISSIONS INFORMATION

7.1 EMISSIONS WORKSHEETS AND SCREENING QUESTIONS

Screen Procedures for EP’s Yes No Is any calculated Complex Total (CT) Emission amount (tons) associated with your proposed exploration activities more than 90% of the amounts calculated using the following formulas: CT = 3400D 2/3 

### for CO, and CT = 33.3D for the other air pollutants (where D = distance to shore in miles)? X

Do your emission calculations include any emission reduction measures or
modified emission factors? X

A re your proposed exploration activities located east of 87.5° W longitude? X Do you expect to encounter H 2 

### S at concentrations greater than 20 parts per million (ppm)? X

Do you propose to flare or vent natural gas for more than 48 continuous
hours from any proposed well? X

Do you propose to burn produced hydrocarbon liquids? X

7.2 SUMMARY INFORMATION

Included as Attachment 7

- A are Air Emission Worksheets which show the emissions calculations for the Plan Emissions and if different, a set of worksheets showing the emissions calculations for the Complex Total emissions.

This information was calculated by: Callie Hutchinson (281) 698

- 8545 callie.hutchinson@jccteam.comEXPLORATION PLAN (EP)

AIR QUALITY SCREENING CHECKLIST OMB Control No. 1010-0151 OMB Approval Expires: 12/31/2011



### MMS FORM MMS-138 (December 2008 - Supersedes all previous versions of form MMS-138 which may not be used). Page 1 of 8 COMPANY Freeport-McMoRan Oil & Gas LLC

AREA Mississippi Canyon

BLOCK 127

LEASE OCS-G 19925

PLATFORM NA

WELL Locations A, B, C, D

COMPANY CONTACT Callie Hutchinson

TELEPHONE NO. (281) 698-8545

REMARKS FM O&G will use a drillship similar to the Deepwater Champion; Emissions calculations based on Deepwater Champion engine run time and fuel usage data for 6 months (82% of 64,320 total hp & 14,179 gal highest monthly fuel usage)EMISSIONS FACTORS



### MMS FORM MMS-138 (December 2008 - Supersedes all previous versions of form MMS-138 which may not be used). Page 2 of 8 Fuel Usage Conversion Factors Natural Gas Turbines Natural Gas Engines Diesel Recip. Engine REF. DATE SCF/hp-hr 9.524 SCF/hp-hr 7.143 GAL/hp-hr 0.0483 AP42 3.2-1 4/76 & 8/84

Equipment/Emission Factors units PM SOx NOx VOC CO REF. DATE

NG Turbines gms/hp-hr 0.00247 1.3 0.01 0.83 AP42 3.2-1& 3.1-1 10/96 NG 2-cycle lean gms/hp-hr 0.00185 10.9 0.43 1.5 AP42 3.2-1 10/96 NG 4-cycle lean gms/hp-hr 0.00185 11.8 0.72 1.6 AP42 3.2-1 10/96 NG 4-cycle rich gms/hp-hr 0.00185 10 0.14 8.6 AP42 3.2-1 10/96

Diesel Recip. < 600 hp. gms/hp-hr 1 1.468 14 1.12 3.03 AP42 3.3-1 10/96 Diesel Recip. > 600 hp. gms/hp-hr 0.32 1.468 11 0.33 2.4 AP42 3.4-1 10/96

Diesel Boiler lbs/bbl 0.084 2.42 0.84 0.008 0.21 AP42 1.3-12,14 9/98

NG Heaters/Boilers/Burners lbs/mmscf 7.6 0.593 100 5.5 84 P42 1.4-1, 14-2, & 14 7/98
NG Flares lbs/mmscf 0.593 71.4 60.3 388.5 AP42 11.5-1 9/91 Liquid Flaring lbs/bbl 0.42 6.83 2 0.01 0.21 AP42 1.3-1 & 1.3-3 9/98 Tank Vapors lbs/bbl 0.03 E&P Forum 1/93 Fugitives lbs/hr/comp. 0.0005 API Study 12/93 Glycol Dehydrator Vent lbs/mmscf 6.6 La. DEQ 1991 Gas Venting lbs/scf 0.0034

Sulphur Content Source Value Units

Fuel Gas 3.33 ppm
Diesel Fuel 0.4 % weight Produced Gas( Flares) 3.33 ppm Produced Oil (Liquid Flaring) 1 % weightEMISSIONS CALCULATIONS 2ND YEAR

MMS FORM MMS-138 (December 2008 - Supersedes all previous versions of form MMS-138 which may not be used). Page 4 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL CONTACT PHONE REMARKS

Freeport-McMoRan Oil & Mississippi Canyon 127 OCS-G 19925 NA Locations A, B, C, D Callie Hutchinson (281) 698-8545

OPERATIONS EQUIPMENT RATING MAX. FUEL ACT. FUEL RUN TIME MAXIMUM POUNDS PER HOUR ESTIMATED TONS Diesel Engines HP GAL/HR GAL/D Nat. Gas Engines HP SCF/HR SCF/D

Burners MMBTU/HR SCF/HR SCF/D HR/D DAYS PM SOx NOx VOC CO PM SOx NOx VOC CO

DRILLING PRIME MOVER>600hp diesel 49486 2390.1738 14179.00 24 232 34.88 160.01 1199.00 35.97 261.60 24.00 110.11 825.07 24.75 180.02 PRIME MOVER>600hp diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PRIME MOVER>600hp diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PRIME MOVER>600hp diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

BURNER diesel 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AUXILIARY EQUIP<600hp diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS>600hp diesel(crew) 2065 99.7395 2393.75 6 33 1.46 6.68 50.03 1.50 10.92 0.14 0.66 4.97 0.15 1.09 VESSELS>600hp diesel(supply) 4400 212.52 5100.48 10 33 3.10 14.23 106.61 3.20 23.26 0.51 2.36 17.67 0.53 3.85 VESSELS>600hp diesel(supply) 4400 212.52 5100.48 10 33 3.10 14.23 106.61 3.20 23.26 0.51 2.36 17.67 0.53 3.85 VESSELS>600hp diesel(tugs) 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

FACILITY DERRICK BARGE diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

INSTALLATION MATERIAL TUG diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS>600hp diesel(crew) 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS>600hp diesel(supply) 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

MISC. BPD SCF/HR COUNT

TANK- 0 0 0 0.00 0.00

DRILLING OIL BURN 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

WELL TEST GAS FLARE 208333.33 24 2 0.12 14.87 12.56 80.94 0.00 0.36 0.30 1.94

2015 YEAR TOTAL 42.54 195.27 1477.12 56.43 399.97 25.17 115.49 865.74 26.26 190.75

EXEMPTION

CALCULATION DISTANCE FROM LAND IN

MILES 2064.60 2064.60 2064.60 2064.60 53260.68

62.0EMISSIONS CALCULATIONS 3RD YEAR

MMS FORM MMS-138 (December 2008 - Supersedes all previous versions of form MMS-138 which may not be used). Page 5 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL CONTACT PHONE REMARKS

Freeport-McMoRan Oil & Mississippi Canyon 127 OCS-G 19925 NA Locations A, B, C, D Callie Hutchinson (281) 698-8545

OPERATIONS EQUIPMENT RATING MAX. FUEL ACT. FUEL RUN TIME MAXIMUM POUNDS PER HOUR ESTIMATED TONS Diesel Engines HP GAL/HR GAL/D Nat. Gas Engines HP SCF/HR SCF/D

Burners MMBTU/HR SCF/HR SCF/D HR/D DAYS PM SOx NOx VOC CO PM SOx NOx VOC CO

DRILLING PRIME MOVER>600hp diesel 49486 2390.1738 14179.00 24 266 34.88 160.01 1199.00 35.97 261.60 27.52 126.25 945.99 28.38 206.40 PRIME MOVER>600hp diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PRIME MOVER>600hp diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PRIME MOVER>600hp diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

BURNER diesel 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AUXILIARY EQUIP<600hp diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS>600hp diesel(crew) 2065 99.7395 2393.75 6 38 1.46 6.68 50.03 1.50 10.92 0.17 0.76 5.70 0.17 1.24 VESSELS>600hp diesel(supply) 4400 212.52 5100.48 10 38 3.10 14.23 106.61 3.20 23.26 0.59 2.70 20.26 0.61 4.42 VESSELS>600hp diesel(supply) 4400 212.52 5100.48 10 38 3.10 14.23 106.61 3.20 23.26 0.59 2.70 20.26 0.61 4.42 VESSELS>600hp diesel(tugs) 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

FACILITY DERRICK BARGE diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

INSTALLATION MATERIAL TUG diesel 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS>600hp diesel(crew) 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS>600hp diesel(supply) 0 0 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

MISC. BPD SCF/HR COUNT

TANK- 0 0 0 0.00 0.00

DRILLING OIL BURN 0 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

WELL TEST GAS FLARE 208333.33 24 2 0.12 14.87 12.56 80.94 0.00 0.36 0.30 1.94

2016 YEAR TOTAL 42.54 195.27 1477.12 56.43 399.97 28.86 132.42 992.56 30.07 218.42

EXEMPTION

CALCULATION DISTANCE FROM LAND IN

MILES 2064.60 2064.60 2064.60 2064.60 53260.68

62.0SUMMARY



### MMS FORM MMS-138 (December 2008 - Supersedes all previous versions of form MMS-138 which may not be used). Page 8 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL

Freeport-McMoRan Oil & Gas LLC Mississippi Canyon 127 OCS-G 19925 NA Locations A, B, C, D

Emitted Substance

Year

PM SOx NOx VOC CO

2015 25.17 115.49 865.74 26.26 190.75

2016 28.86 132.42 992.56 30.07 218.42

Allowable 2064.60 2064.60 2064.60 2064.60 53260.68Day 1 2 3 4 5 6

1 11,174 gal 16,299 gal 11,042 gal 17,594 gal 13,605 gal 17,383 gal

2 14,133 gal 8,321 gal 11,095 gal 20,843 gal 12,786 gal 20,658 gal

3 17,409 gal 13,816 gal 11,941 gal 15,296 gal 8,612 gal 14,318 gal

4 5,733 gal 12,073 gal 14,529 gal 14,292 gal 12,231 gal 22,032 gal

5 34,818 gal 13,658 gal 11,359 gal 23,353 gal 12,231 gal 12,443 gal

6 16,775 gal 11,386 gal 9,510 gal 31,886 gal 12,469 gal 20,658 gal

7 14,662 gal 12,865 gal 10,223 gal 10,725 gal 13,103 gal 11,016 gal

8 16,167 gal 17,726 gal 11,016 gal 12,495 gal 11,174 gal 15,824 gal

9 14,133 gal 18,043 gal 10,567 gal 14,741 gal 14,556 gal 10,699 gal

10 12,046 gal 13,209 gal 10,514 gal 12,627 gal 18,017 gal 6,789 gal

11 12,733 gal 14,952 gal 13,182 gal 12,760 gal 17,752 gal 11,280 gal

12 12,812 gal 9,880 gal 10,567 gal 12,390 gal 13,895 gal 12,944 gal

13 15,190 gal 23,141 gal 10,752 gal 10,857 gal 12,046 gal 9,722 gal

14 14,001 gal 9,801 gal 11,359 gal 9,695 gal 11,412 gal 13,763 gal

15 10,223 gal 7,819 gal 10,910 gal 8,638 gal 12,073 gal 16,114 gal

16 7,661 gal 5,072 gal 11,069 gal 12,575 gal 10,039 gal 14,080 gal

17 14,635 gal 10,540 gal 12,786 gal 12,099 gal 14,397 gal 15,613 gal

18 11,650 gal 14,107 gal 10,884 gal 7,661 gal 13,314 gal 15,771 gal

19 15,005 gal 18,334 gal 15,692 gal 9,537 gal 14,080 gal 15,401 gal

20 14,899 gal 14,450 gal 7,899 gal 9,827 gal 11,650 gal 14,160 gal

21 13,473 gal 12,495 gal 10,646 gal 18,386 gal 11,967 gal 10,620 gal

22 12,575 gal 19,364 gal 8,189 gal 11,095 gal 14,979 gal 18,439 gal

23 10,778 gal 16,854 gal 11,174 gal 10,778 gal 13,552 gal 15,375 gal

24 10,857 gal 6,234 gal 9,642 gal 10,250 gal 10,725 gal 18,862 gal

25 12,786 gal 12,944 gal 12,443 gal 16,009 gal 10,250 gal 14,477 gal

26 10,805 gal 8,586 gal 11,069 gal 12,786 gal 12,944 gal 10,963 gal

27 12,469 gal 12,760 gal 14,899 gal 12,284 gal 9,589 gal 11,597 gal

28 11,148 gal 14,556 gal 10,673 gal 12,231 gal 11,016 gal 12,125 gal

29 13,684 gal 9,193 gal 9,827 gal 11,148 gal 11,359 gal

30 13,552 gal 13,869 gal 15,375 gal 14,688 gal 11,307 gal

31 13,499 gal 15,507 gal 13,763 gal

Average 13,596 gal 12,734 gal 11,290 gal 13,691 gal 12,677 gal 14,179 gal

Transit Days 

# Daily Fuel Usage for a 6 month period

Month

### Freeport

- McMoRan Oil & Gas LLC Section 8

– Pg. 17 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 8

OIL SPILL INFORMATION

8.1 OIL SPILL RESPONSE PLANNING
All the proposed activities and facilities in the Supplemental EP will be covered by the
Freeport

- McMoRan Oil & Gas LLC ( FM O&G ; Operator Number 03280 ) Oil Spill Response Plan (OSRP), submitted on January 10

, 2014 , revised on January 31, 2014,
and approved on February

, 4

, 2014 (OSRP Control Number O

- 713 ).

8.2 SPILL RESPONSE SITES
Primary Response Equipment

Location Preplanned Staging Location

Houma, LA Houma, LA Harvey, LA Harvey, LA Venice, LA Venice, LA

8.3 OSRO INFORMATION

FM O&G’s primary equipment provider is Clean Gulf Associates ( CGA ) and National Response Corporation (NRCC)

. Clean Gulf Associates Services, LLC (CGAS) will
provide closest avai lable personnel, as well as a CGAS supervisor to operate the
equipment

. Through its Independent Contractor Network (ICN), NRCC will also provide closest available personnel, as well as an NRCC ICN supervisor to operate the
equipment.

### Freeport

- McMoRan Oil & Gas LLC Section 8

– Pg. 18 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 8.4 WORST CASE SCENARIO DETERMINATION

Category Regional OSRP
WCD

- Drilling EP
WCD

- Drilling

Type of Activity Exploratory 

### Drilling

>10 miles Exploratory 

### Drilling

> 10 miles

Facility Location (Area/Block) GC 393 MC 127

Facility Designation Well Location B Well Location C

Distance to Nearest Shoreline (miles) 96.5 miles 62.0 miles

Volume

• Storage Tanks (Total)

• Uncontrolled

blowout

Total Volume 400,000 bbls 159,062 bbls Type of Oil(s) (crude, condensate, diesel) Crude Crude

API Gravity 25° 34.5 °

Calculations and Assumptions for the Regional OSRP WCD drilling scenario were

submitted and found acceptable in Plan N

- 9739

.

FM O&G has determined that the worst

- case scenario from the activities proposed in

this EP do es not supersede the worst

- case sce nario from our approved Regional

OSRP.

Since FM O&G has the capability to respond to the worst

- case spill scenario included in our Regional OSRP approved on Jan uary 10, 2014

, revised on January 31, 2014, and approved on February 4, 2014 (OSRP Control Number O

- 713), and since the worst

case scenario determined for our EP does not replace the worst

- ca se scenario in our Regional OSRP

, FM O&G hereby certifies that FM O&G has the capability to respond,

to the maxi mum extent practicable, to a worst

- case discharge, or a substantial threat of such a discharge, resulting from the activities proposed in this EP.

### Freeport

- McMoRan Oil & Gas LLC Section 8

– Pg. 19 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 8.5 OIL SPILL RESPONSE DISCUSSION The Oil Spill Response Discussion is included as Attachment 8

- A.

### SPILL RESPONSE DISCUSSION

For the purpose of NEPA and Coastal Zone Management Act analysis, the largest spill volume originating from the proposed activity would be a well blowout during drilling operations

, estimated to be 159,062 barrels of crude oil wi th an API gravity of 34.5 °

.

Land Segment and Resource Identification

Trajectories of a spill and the probability of it impacting a land segment have been projected utilizing information in the BOEM Oil Spill Risk Analysis Model (OSRAM) for the Central an d

Western Gulf of Mexico available on the BOEM website . Th e results are shown in Fi gure 1

. The BOEM OSRAM identifies a 21 % probability of impact to the shorelines of Plaquemines Parish, Louisiana within 30 days

. Plaquemines Parish includes Barataria Bay, the Mississippi River Delta, Breton Sound and the affiliated islands and bays. This region is an extremely sensitive habitat and serves as a migratory, breeding, feeding and nursery habitat for numerous species of wildlife. Beaches in this area vary in g rain particle size and can be classified as fine sand, shell or perched shell beaches. Sandy and muddy tidal flats are also abundant

.

Response

FM O&G will make every effort to respond to the Worst Case Discharge as effectively as

p racticable . A descrip tion of the response equipment under contract to contain and recover the Worst Case Discharge is shown in Figure 2

.

Using the estimated chemical and physical characteristics of crude oil , an ADIOS weathering model was run on a similar product from the ADI OS oil da tabase. The results indicate 20 % or approximately 31,812 barrels of crude oil would be evaporated/dispersed within 24 hours, with approximately 127,250 barrels remaining.

Spill Response MC 127, Well Location C Barrels of Oil

WCD Volume 159,06 2

Less 20 % natural evaporation/dispersion 31,812

Remaining volume 127,250



### Figure 2 outlines equipment, personnel, materials and support vessels as well as temporary storage equipment available to respond to the worst case discharge

. The volume account s for the amount remaining after evaporation/dispersion at 24 hours. The list estimates individual times needed for procurement, load out, travel time to the site and deployment

. Figure 2 also indicates how operations will be supported.

FM O&G ’s Oil Spil l Response Plan includes alternative response technologies such as dispersants and in

- situ burn. Strategies will be decided by Unified Command based on the size of the spill, weather and potential impacts. If aerial disper sants are utilized, 8 sorties (9

, 6 00 gallons) from two of the DC

- 3 aircrafts and 4 sorties (8,000 gallons) from the Basler aircraft

### would provide a daily dispersant capability of 7,540 barrels . If the conditions are favorable for

in

- situ burning, the proper approvals have been obtained an d the proper planning is in place, in

situ burning of oil may be attempted. S lick containment boom would be immediately called out

and on

- scene as soon as possible. Offshore response strategies may include attempting to skim utilizing CGA and MSRC spill re sponse equipment , with a total derated skimming capacity of 456,592 barrels. Temporary storage associated with skimming equipment equals 125,098 barrels. If additional storage is needed, a n 80,000 barrel storage barge

, a n 83,937 barrel storage barge

, and t wo 107,285 barrel storage barge s may be mobilized and centrally located to provide temporary storage allowing the skimmers to stay in the area of operations as much as possible

. Safety is first priority. Air monitoring will be accomplished and operations deemed safe prior to any containment/skimming attempts

.

If the spill went unabated, shoreline impact in Plaquemines Parish, Louisiana would depend upon existing environmental conditions. Shoreline protection would include the use of CGA’s

and MSRC’s nea r shore and shallow water skimmers with a totaled derated skimming capacity

of 137,366 barrels. Temporary storage associated with skimming equipment equals 2,181 barrels. If additional storage is needed, a 25,000 barrel storage barge , three 20,000 barrel s torage barge s, and three 23,000 barrel storage barge s may be mobilized and centrally located to provide temporary storage allowing the skimmers to stay in the area of operations as much as possible

. Onshore response may include the deployment of shoreline boom on beach areas, or protection and sorbent boom on vegetated areas. Master Service Agreements with AMPOL and OMI

Environmental will ensure access to 147,000 feet of 18” shoreline protection boom

. Figure 2 outlines individual times needed for procuremen t, load out, travel time to the site and deployment. Strategies would be based upon surveillance and real time trajectories that depict areas of potential impact given actual sea and weather conditions. The State of Louisiana Initial Oil Spill Response Pl an for Plaquemines Parish and Unified Command would be consulted to ensure that environmental and special economic resources would be correctly identified and prioritized to ensure optimal protection. Shoreline protection strategies depict the protection

r esponse modes applicable for oil spill clean

- up operations. The State of Louisiana Initial Oil Spill Response Plan provides detailed shoreline protection strategies for this area, and it describes necessary action to keep the oil spill from entering Louisi ana’s coastal wetlands, based on the assumption that removal of the released oil will be much easier and less damaging to fragile coastal ecosystems if done in the open waters of the Gulf of Mexico. Supervisory personnel have the option to modify the deplo yment and operation of equipment allowing a more effective response to site

- specific circumstances. FM O&G ’s contract Spill Management Team holds a copy of the State of Louisiana Initial Oil Spill Response Plan.

Based on the anticipated worst case dischar ge scenario, FM O&G can be onsite with contracted oil spill recovery equipment with adequate response capacity to contain and recover surface hydrocarbons, and prevent land impact, to the maximum extent practicable , within an estimated

39 hours (based on t he equipment’s Effective Daily Recovery Capacity (EDRC)).

### Initial Response Considerations Actual actions taken during an oil spill response will be based on many factors which include but

are not limited to:

• Weather

• Equipment and materials availability

• Oc ean currents and tides

• Location of the spill

• Product spilled

• Amount spilled

• Environmental risk assessments

• Trajectory and product analysis

• Well status, i.e., shut in or continual release

FM O&G will take action to provide a safe, aggressive response to contain and recover as much of the spilled oil as quickly as it is safe to do so. In an effort to protect the environment, response actions will be designed to provide an “in

- depth” protection strategy meant to recover as much oil as possible as far from environmentally sensitive areas as possible. Safety will take precedence over all other considerations during these operations.

Coordination of response assets will be supervised by the designation of a SIMOPS group as necessary for close quarter vessel response activities. Most often, this group will be used during source control events that require a significant number of large vessels operating independently, but in coordination to complete a common objective, in a small area and in close coordination and support of each other. This group must also monitor the subsurface activities of each vessel (ROV, dispersant application, well control support, etc.). The SIMOPS group leader reports to

the Source Control Section Chief.

In addition, these activities will be monitored by the spill management team (SMT) and Unified Command via a structured Common Operating Picture (COP) established to track resource and

slick movement in real time.

Upon notification of a spill, the following actions will be taken:

• Info rmation will be confirmed

• An assessment will be made and initial objectives set

• OSROs and appropriate agencies will be notified

• ICS 201, Initial Report Form will be completed

• Initial Safety plan will be written and published

• Unified Command will be esta blished

o Overall safety plan developed to reflect the operational situation and coordinated objectives

o Areas of responsibility established for Source Control and each surface operational

site

o On

- site command and control established

### Decanting Strategy

Recov ered oil and water mixtures will typically separate into distinct phases when left in a quiescent state. When separation occurs, the relatively clean water phase can be siphoned or decanted back to the recovery point with minimal, if any, impact. Decanting therefore increases

the effective on

- site oil storage capacity and equipment operating time. FOSC/SOSC approval will be requested prior to decanting operations. This practice is routinely used for oil spill

recovery.

Offshore Response Actions

Equipment Deployment

Surveillance

• Surveillance Aircraft will be deployed within two hours of Q ualified I ndividual (QI) notification, or at first light

• Provide trained observer to provide on site status reports

• Provide command and control platform at the site if need ed

• Continual surveillance of oil movement by remote sensing systems, aerial photography

and visual confirmation

• Continual monitoring of vessel assets using vessel monitoring systems

Dispersant application assets

• Put A irborne S upport I nc. (ASI) on stand by

• With the Federal On

- Scene Coordinator ( FOSC ) , conduct analysis to determine appropriateness of dispersant application

• Gain FOSC approval for use of dispersants on the surface

• Deploy aircraft in accordance with a plan developed for the actual situation

• Coordinate movement of dispersants, aircraft, and support equipment and personnel

• Confirm dispersant availability for current and long range operations

• Start ordering dispersant stocks required for expected operations

Containment boom

• Call out early and expedite deployment to be on scene ASAP

• Ensure boom handling and mooring equipment is deployed with boom

• Provide continuing reports to vessels to expedite their arrival at sites that will provide for

their most effective containment

• Use Vessels of Opport unity (VOO) to deploy and maintain boom

Dedicated off

- shore skimming systems

General

• Deployed to the highest concentration of oil

• Assets deployed at safe distance from aerial dispersant and in

- situ burn operations

### CGA HOSS Barge

• Use in areas with heavi est oil concentrations

• Consider for use in areas of known debris (seaweed, and other floating materials)

CGA FRUs

• To the area of the thickest oil

• Use as far off

- shore as allowed

• VOOs 140’

– 180’ in length

• VOOs with minimum of 18’ x 38’ or 23’ x 50’ of opt imum deck space

• VOOs in shallow water should have a draft of <10 feet when fully loaded

MSRC Oil Spill Response Vessels (OSRV)

• Use in areas with heaviest oil concentrations

• Use as far off

- shore as allowed

MSRC Responders

• Use in areas with heaviest oil co ncentrations

• Consider for use in areas of known debris (seaweed, and other floating materials)

Storage Vessels

• Establish availability of CGA contracted assets

• Early call out (to allow for tug boat acquisition and deployment speeds)

• Phase mobilization to a llow storage vessels to arrive at the same time as skimming

systems

• Position as closely as possible to skimming assets to minimize offloading time

Vessels of Opportunity (VOO)

• Use FM O&G ’s contracted resources as applicable

• Industry vessels are usually be st for deployment of Vessel of Opportunity Skimming Systems (VOSS)

• Acquire additional resources as needed

• Consider use of local assets, i.e. fishing and pleasure craft

• Expect mission specific and safety training to be required

• Plan with the US Coast Guard for vessel inspections

In

- situ Burn assets

• Determine appropriateness of in

- situ burn operation in coordination with the FOSC and

affected State On

- Scene Coordinator (SOSC)

• Determine availability of fire boom and selected ignition systems

• Start ordering f ire boom stocks required for expected operations

• Contact boom manufacturer to provide training if required

• Determine assets to perform on water operation

### • Build operations into safety plan

• Conduct operations in accordance with an approved plan

Adverse Weat her Operations:

In adverse weather, when seas are > 3 feet, the use of larger recovery and storage vessels, oleophilic skimmers, and large offshore boom will be maximized. Safety will be the overriding factor in all operations and will cease at the order of the Unified Command, vessel captain, or in an emergency, ”stop work” may be directed by any crew member.

### Near Shore Response Actions

Timing

• P lace near shore assets on standby and deploy in accordance with planning based on the actual situation, actua l trajectories and oil budgets

• VOO identification and training in advance of spill nearing shoreline if possible

• Outfitting of VOOs for specific missions

• Deployment of assets based on actual movement of oil

Considerations

• Water depth, vessel draft

• Shorel ine gradient

• State of the oil

• Use of VOOs

• Distance of surf zone from shoreline

Equipment Deployment

Surveillance

• Provide trained observer to direct skimming operations

• Continual surveillance of oil movement by remote sensing systems, aerial photography

and visual confirmation

• Continual monitoring of vessel assets

Dispersant Use

• Generally will not be approved within 3 miles of shore or with less than 10 meters of water depth

• Approval would be at Regional Response Team level (Region 6)

Vessel Deploym ent Dedicated Near Shore skimming systems

• F ast R esponse V essel s (FRV)

• Egmopol and Marco S hallow Water Skimmer (SWS)

• Operate with aerial spotter directing systems to observed oil slicks

VOO

• Use FM O&G ’s contracted resources as applicable

• Industry vessel s a re usually best for deployment of Vessel of Opportunity Skimming Systems (VOSS)

• Acquire additional resources as needed

• Consider use of local assets, i.e. fishing and pleasure craft

• Expect mission specific and safety training to be required

• Plan with the U S Coast Guard for vessel inspections

• Operate with aerial spotter directing systems to oil patches

### Shoreline Protection Operations

Response Planning Considerations

• Environmental risk assessments (ERA) to determine priorities for area protection

• Time to ac quire personnel and equipment and their availability

• Previous contingency planning contained in the appropriate Area Contingency Plan, and currently for Louisiana, The State of Louisiana Initial Oil Spill Response Plan, Deep Water Horizon, dated 2 May 2010

Actions

Placement of boom

• Position boom in accordance with the ERA based on the actual situation or the appropriate ACP

• Assess timing of booming operations to ensure it is where it needs to be at time of impact. Consider:

o Trajectories

o Weather forecast

o Oil Impact forecast

o Verified spill movement

o Boom, manpower and vessel (shallow draft) availability

o Near shore boom and support material, (stakes, anchors, line)

Beach Preparation

Considerations and Actions

• Use of a 10 mile go/no go line to determine tim ing of beach cleaning

• Shoreline Cleanup and Assessment Team Reports and recommendations

• Determination of Archeological sites and gaining authority to enter

• Monitoring of tide tables and weather to determine extent of high tides

• Pre cleaning of beaches by moving waste above high ti d e lines to minimize waste

• Staging of equipment and housing of response personnel as close to the job site as possible to maximize on

- site work time

• Boom tending, repair, replacement and security (use of local assets may be advant ageous)

• Constant awareness of weather and oil movement for resource redeployment as necessary

• In

- situ burn may be considered when marshes have been impacted

• Passive clean up of marshes should be considered and appropriate stocks of sorbent boom

and/or s weep obtained

• Earthen berms and shoreline protection boom may be considered to protect sensitive

inland areas

### Decanting Strategy Recovered oil and water mixtures will typically separate into distinct phases when left in a quiescent state. When separati on occurs, the relatively clean water phase can be siphoned or decanted back to the recovery point with minimal, if any, impact. Decanting therefore increases

the effective on

- site oil storage capacity and equipment operating time. FOSC/SOSC approval

will be requested prior to decanting operations. This practice is routinely used for oil spill

recovery.

CGA Equipment Limitations The capability for any spill response equipment, whether a dedicated or portable system, to operate in differing weather conditio ns will be directly in relation to the capabilities of the vessel the system in placed on. Most importantly, however, the decision to operate will be based on the judgment of the Unified Command and/or the Captain of the vessel, who will ultimately have t he final say in terminating operations. Skimming equipment listed below may have operational limits which exceed those safety thresholds. As was seen in the Deepwater Horizon (DWH) oil spill response, vessel skimming operations ceased when seas reached 5

- 6 feet and vessels were often recalled to port when those conditions were exceeded. Systems below are some of the

most up

- to

- date systems available and were employed during the DWH spill.

Boom 3 foot seas, 20 knot winds Dispersants Winds more than 25 kn ots Visibility less than 3 nautical miles Ceiling less than 1,000 feet.

FRU 8 foot seas HOSS Barge/OSRB 8 foot seas Koseq Arms 8 foot seas

OSRV 4 foot seas

### Environmental Conditions in the GOM Louisiana is situated between the easterly and westerly wind belts, and therefore, experiences westerly winds during the winter and easterly winds in the summer. Average wind speed is generally 14

- 15 mph along the coast. Wave heights average 4 and 5 feet. However, during hurricane season, Louisiana has recorded wave heights ranging from 40 to 50 feet high and winds reaching speeds of 100 mph. Because much of southern Louisiana lies below sea level, flooding is prominent.

Surface water temperature ranges between 70 and 80  ̊ F during the summer months. During the winter, the average temperature will range from 50 and 60  ̊ F.

The Atlantic and Gulf of Mexico hurricane season is officially from 1 June to 30 November. 97% of all tropical activity occurs within this window. The Atlantic basin shows a very peaked

season from August through October, with 78% of the tropical storm days, 87% of the minor (Saffir

- Simpson Scale categories 1 and 2) hurricane days, and 96% of the major (Saffir

- Simpson categories 3, 4 and 5) hurricane days occurring then. Maximum activity is in e arly to mid September. Once in a few years there may be a hurricane occurring "out of season"

- primarily in May or December. Globally, September is the most active month and May is the least active

month.

### FIGURE 1

TRAJECTORY BY LAND SEGMENT

Trajectory of a spill and the probability of it impacting a land segment have been projected utilizing FM O&G ’s WCD and information in the BOEM Oil Spill Risk Analysis Model (OSRAM) for the Central and Western Gulf of Mexico available on the BOEM website using 30 da y impact. The results are tabulated below.

Area/Block OCS

- G Launch

Area Land Segment and/or

Resource Conditional Probability (%)

within 30 days

Drill, complete, test,

flare & install subsea

trees for Well

Locations A

- D

MC 127,

Well Location C

62 mil es from shore G19925 C57 Cameron, LA Vermilion, LA Terrebonne, LA Lafourche, LA Plaquemines, LA

St. Bernard, LA Hancock & Harrison, MS Jackson, MS Mobile, AL Baldwin, AL Escambia, AL Okaloosa, FL

Walton, FL

Bay, FL 1

1

2

2

21

3

1

1

1

1

1

1

1

1

### WCD Scenario

– BASED ON WELL BLOWOUT DURING DRILLING OPERATIONS ( 62 miles from shore) 127,250 bbls of crude oil ( Volume considering natural weathering)

API Gravity 34.5 °

FIGURE 2

– Equipment Response Time to MC 127, Well Location C

Dispersants/Surveillance

Dis persant/Surveillance Dispersant Capacity (gal) Persons Req. From Hrs to

Procure Hrs to

Loadout Travel to site Total Hrs

ASI

Basler 67T 2000 2 Houma 2 2 0.8 4.8

DC 3 1200 2 Houma 2 2 1.1 5.1

DC 3 1200 2 Houma 2 2 1.1 5.1

Aero Commander NA 2 Houma 2 2 0 .8 4.8

MSRC

C

- 130 Spray AC 3,250 2 Stennis 3 0.2 0.4 3.6

King Air BE90 Spray AC 250 2 Stennis 3 0.3 0.7 4

Offshore Response
Offshore Equipment

Pre

- Determined Staging EDRC Storage Capacity VOO Persons Required From Hrs to

Procure Hrs to

Loadout Hrs to GOM Travel to Spill Site Hrs to Deploy Total

Hrs

CGA

HOSS Barge 43000 4000 3 Tugs 8 Harvey 7 0 5 10.6 1 23.6

95’ FRV 12342 249 NA 6 Leeville 2 2 1 5.2 1 11.2

95’ FRV 12342 249 NA 6 Venice 2 2 1 3.4 1 9

. 4
Boom Barge (CGA

- 300) 42” Auto Boom (25000’) NA NA 1 Tug

50 Crew 4 (Barge) 2 (Per Crew) Leeville 4 0 6 18.5 1.5 30

Recovered Oil Storage Pre

Determined Staging EDRC Storage Capacity VOO Persons Required From Hrs to

Procure Hrs to

Loadout Hrs to

GOM Travel to Spill Site Hrs to Deploy Total

Hrs

K

- Sea Operating (available through contract with CGA)

PACIFIC 996165 NA 80000 1 Tug 6 Venice 4 12 2 11 1 30

DBL 76 1212984 NA 83937 1 Tug 6 Venice 4 12 2 11 1 30

DBL 101 1119760 NA 107285 1 Tug 6 Venice 4 12 2 11 1 30

DBL 102 1146491 NA 107285 1 Tug 6 Veni ce 4 12 2 11 1 30Offshore Equipment

Pre

- determined Staging EDRC Storage Capacity VOO Persons Required From Hrs to

Procure Hrs to

Loadout Hrs to

GOM Travel to Spill Site Hrs to Deploy Total

Hrs

MSRC

Louisiana Responder

Transrec 350 + OSRV
7,920’ 67” Curtain Pressure Boom 10567 4000 NA 14 Fort Jackson 2 0 4.5 7 1 14.5

MSRC 452 Offshore Barge

1 Crucial Disk 88/30
2,640‘ 67” Curtain Pressure Boom 11122 45000 3 Tugs 6 Fort Jackson 2.5 0 6 11.5 1 21

Mississippi Responder

Transrec 350 + OSRV
7,920’ 67” Curtain Pressure Boom 10567 4000 NA 14 Pascagoula 2 0 2 8 1 13

MSRC 402 Offshore Barge

2 Crucial Disk 88/30
2,640‘ 67” Curtain Pressure Boom 22244 40300 3 Tugs 6 Pascagoula 2.5 0 3 13 1 19.5

Deep Blue Responder

LFF 100 Brush + OSRV
7,260’ 67” Curtain Pr essure Boom 18086 4000 NA 14 Fourchon 2 0 1 10 1 14

Gulf Coast Responder

Transrec 350 + OSRV
7,920’ 67” Curtain Pressure Boom 10567 4000 NA 14 Lake Charles 2 0 4 24 1 31

Staging Area: Venice
Offshore Equipment With Staging EDRC Storage Capacity VOO Per sons Req. From Hrs to

Procure Hrs to

Loadout Travel to Staging Travel to

Site Hrs to Deploy Total

Hrs
T&T Marine (available through direct contract with CGA)

Aqua Guard Triton RBS (2) 45560 4000 2 Utility 12 Galveston 4 12 13 7.1 2 38.1

CGA

FRU (1) + 100 bbl Tank (1) 4251 100 1 Utility 6 Galveston 2 2 12.7 7.1 1 24.8

FRU (1) + 100 bbl Tank (2) 4251 200 1 Utility 6 Harvey 2 2 2.1 7.1 1 14.2

FRU (1) + 100 bbl Tank (2) 4251 200 1 Utility 6 Aransas Pass 2 2 17.7 7.1 1 29.8

FRU (1) + 100 bbl Tank (2) 425 1 200 1 Utility 6 Lake Charles 2 2 8 7.1 1 20.1

FRU (2) + 100 bbl Tank (2) 8502 400 2 Utility 12 Leeville 2 2 4.4 7.1 1 16.5

FRU (1) + 100 bbl Tank (2) 4251 200 1 Utility 6 Morgan City 2 2 4.9 7.1 1 17

FRU (2) + 100 bbl Tank (4) 8502 400 2 Utility 12 Ve nice 2 2 0 7.1 1 12.1Staging Area: Venice

Offshore Equipment Preferred Staging EDRC Storage Capacity VOO Persons Req. From Hrs to

Procure Hrs to

Loadout Travel to Staging Travel to

Site Hrs to Deploy Total

Hrs

MSRC

WP 1 Skimmer (1) 3017 4 00 1 Utility 6 Ingleside 1 2 17.8 7.1 1 28.9

Stress I Skimmer (1) 15840 400 1 Utility 6 Ingleside 1 2 17.8 7.1 1 28.9

GT

- 185 Skimmer w Adaptor (1) 1371 400 1 Utility 6 Ingleside 1 2 17.8 7.1 1 28.9

Foilex 250 Skimmer (1) 3977 400 1 Utility 6 Ingleside 1 2 17.8 7.1 1 28.9

GT

- 185 Skimmer w Adaptor (2) 2742 400 2 Utility 12 Galveston 1 2 13 7.1 1 24.1

Walosep 4 Skimmer (1) 3017 400 1 Utility 6 Galveston 1 2 13 7.1 1 24.1

Queensboro Skimmer (1) 905 400 1 Utility 6 Galveston 1 2 13 7.1 1 24.1

Foilex 250 S kimmer (1) 3977 400 1 Utility 6 Galveston 1 2 13 7.1 1 24.1

Stress I Skimmer (1) 15840 400 1 Utility 6 Galveston 1 2 13 7.1 1 24.1

GT

- 185 Skimmer w Adaptor (1) 1371 400 1 Utility 6 Port Arthur 1 2 9.6 7.1 1 20.7

Queensboro Skimmer (4) 3620 400 4 Utility 24 Lake Charles 1 2 8 7.1 1 19.1

Desmi Skimmer (1) 3017 400 1 Utility 6 Lake Charles 1 2 8 7.1 1 19.1

Foilex 250 Skimmer (1) 3977 400 1 Utility 6 Lake Charles 1 2 8 7.1 1 19.1

Stress I Skimmer (1) 15840 400 1 Utility 6 Lake Charles 1 2 8 7.1 1 19.1

Tr ansrec 350 Skimmer (1) 10567 400 1 Utility 6 Lake Charles 1 2 8 7.1 1 19.1

LFF 100 Brush Skimmer (1) 18086 400 1 Utility 6 Lake Charles 1 2 8 7.1 1 19.1

Stress I Skimmer (1) 15840 400 1 Utility 6 Port Fourchon 1 2 5 7.1 1 16.1

Crucial Disk 88/30 Skimmer (2) 22244 400 2 Utility 12 Port Fourchon 1 2 5 7.1 1 16.1

GT

- 185 Skimmer w Adaptor (1) 1371 400 1 Utility 6 Fort Jackson 1 2 0.5 7.1 1 11.6

Walosep W4 Skimmer (1) 3017 400 1 Utility 6 Fort Jackson 1 2 0.5 7.1 1 11.6

Foilex 250 Skimmer (1) 3977 400 1 Ut ility 6 Fort Jackson 1 2 0.5 7.1 1 11.6

Stress I Skimmer (1) 15840 400 1 Utility 6 Fort Jackson 1 2 0.5 7.1 1 11.6Staging Area: Venice
Offshore Equipment Preferred Staging EDRC Storage Capacity VOO Persons Req. From Hrs to

Procure Hrs to

L oadout Travel to Staging Travel to

Site Hrs to Deploy Total

Hrs

MSRC

Queensboro Skimmer (1) 905 400 1 Utility 6 Fort Jackson 1 2 0.5 7.1 1 11.6

Foilex 200 Skimmer (1) 1989 400 1 Utility 6 Fort Jackson 1 2 0.5 7.1 1 11.6

GT

- 185 Skimmer w Adaptor (1) 137 1 400 1 Utility 6 Baton Rouge 1 2 4.5 7.1 1 15.6

Stress I Skimmer (1) 15840 400 1 Utility 6 Pascagoula 1 2 5.5 7.1 1 16.6

GT

- 185 Skimmer (1) 1371 400 1 Utility 6 Pascagoula 1 2 5.5 7.1 1 16.6

AardVac Skimmer (1) 3840 400 1 Utility 6 Pascagoula 1 2 5.5 7 .1 1 16.6

WP 1 Skimmer (1) 3017 400 1 Utility 6 Pascagoula 1 2 5.5 7.1 1 16.6

Queensboro Skimmer (1) 905 400 1 Utility 6 Pascagoula 1 2 5.5 7.1 1 16.6

Stress II Skimmer (1) 3017 400 1 Utility 6 Pascagoula 1 2 5.5 7.1 1 16.6

Stress I Skimmer (1) 15840 4 00 1 Utility 6 Tampa 1 2 21 7.1 1 32.1

GT

- 185 Skimmer w Adaptor (1) 1371 400 1 Utility 6 Tampa 1 2 21 7.1 1 32.1

WP 1 Skimmer (1) 3017 400 1 Utility 6 Tampa 1 2 21 7.1 1 32.1Staging Area: Venice
Offshore Equipment Preferred Staging EDRC Sto rage Capacity VOO Persons Req. From Hrs to

Procure Hrs to

Loadout Travel to Staging Travel to

Site Hrs to Deploy Total

Hrs

CGA

1000’ Hydro

- Fire Boom NA NA 8 Utility 40 Harvey 2 4 2 7.1 6 21.1

MSRC

67” Curtain Pressure Boom (1650’) NA NA 6 Crew 12 Ingl eside 1 2 17.8 7.1 1 28.9

67” Curtain Pressure Boom (4290’) NA NA 10 Crew 20 Galveston 1 2 13 7.1 1 24.1

67” Curtain Pressure Boom (8580’) NA NA 20 Crew 40 Houston 1 2 12 7.1 1 23.1

67” Curtain Pressure Boom (16429’) NA NA 40 Crew 80 Lake Charles 1 2 8 7.1 1 19.1

67” Curtain Pressure Boom (1980’) NA NA 6 Crew 12 Fort Jackson 1 2 .5 7.1 1 11.6

67” Curtain Pressure Boom (3505’) NA NA 10 Crew 20 Pascagoula 1 2 5.5 7.1 1 16.6

2000’ Fire Resistant Boom NA NA 16 Utility 80 Lake Charles 1 4 8 7.1 6 19.1

NRC C

42” Auto Boom (3300’) NA NA 2 Crew 8 Tampa 2 4 21 7.1 1 35.1

42” Auto Boom (1000’) NA NA 1 Crew 4 Port Arthur 2 4 9.6 7.1 1 23.7

42” Auto Boom (2000’) NA NA 1 Crew 4 La Porte 2 4 11.7 7.1 1 25.8

42” Auto Boom (2000’) NA NA 1 Crew 4 Aransas Pass 2 4 1 7.8 7.1 1 31.9

42” Auto Boom (2000’) NA NA 1 Crew 4 Corpus Christi 2 4 18.3 7.1 1 32.4

1000’ Hydro

- Fire Boom NA NA 6 Utility 20 New Iberia 2 4 6 7.1 1 20.1Nearshore Response
Nearshore Equipment

Pre

- determined Staging EDRC Storage Capacity VOO Person s Required From Hrs to

Procure Hrs to

Loadout Hrs to

GOM Travel to Spill Site Hrs to Deploy Total

Hrs

CGA

Trinity SWS 21500 249 NA 4 Morgan City 2 2 2 4.8 1 11.8

Trinity SWS 21500 249 NA 4 Leeville 2 2 2 2 1 9

Trinity SWS 21500 249 NA 4 Venice 2 2 2 2 1 9

Trinity SWS 21500 249 NA 4 Galveston 2 2 2 14 1 21

46’ FRV 5000 65 NA 4 Aransas Pass 2 0 2 18.8 0 22.8

46’ FRV 5000 65 NA 4 Morgan City 2 0 2 4.8 0 8.8

46’ FRV 5000 65 NA 4 Lake Charles 2 0 1 9.8 0 12.8

46’ FRV 5000 65 NA 4 Venice 2 0 1 2 0 5

MSR C

MSRC Lightning

2 LORI Brush Pack 5000 50 NA 6 Tampa 2 0 2 20 1 25

MSRC Quick Strike

2 LORI Brush Pack 5000 50 3 Tugs 6 Ingleside 2 0 1 20 1 24

Enterprise Marine Services LLC (Available through contract with CGA)

CTCo 2603 NA 25000 1 Tug 6 Amelia 4 12 4 15.63 1 36.63

CTCo 2604 NA 20000 1 Tug 6 Amelia 4 12 4 15.63 1 36.63

CTCo 2605 NA 20000 1 Tug 6 Amelia 4 12 4 15.63 1 36.63

CTCo 2606 NA 20000 1 Tug 6 Amelia 4 12 4 15.63 1 36.63

CTCo 2607 NA 23000 1 Tug 6 Amelia 4 12 4 15.63 1 36.63

CTCo 2608 NA 2 3000 1 Tug 6 Amelia 4 12 4 15.63 1 36.63

CTCo 2609 NA 23000 1 Tug 6 Amelia 4 12 4 15.63 1 36.63Staging Area: Venice
Nearshore Equipment With Staging EDRC Storage Capacity VOO Persons Req. From Hrs to

Procure Hrs to

Load Out Travel to Staging Travel to Deployment Hrs to Deploy Total

Hrs

CGA

SWS Egmopol 3000 100 NA 3 Galveston 2 2 13 2 0 19

SWS Egmopol 3000 100 NA 3 Morgan City 2 2 4.6 2 0 10.6

SWS Marco 3588 20 NA 3 Lake Charles 2 2 8 2 0 14

SWS Marco 3588 34 NA 3 Leeville 2 2 4.6 2 0 10.6

SWS M arco 3588 34 NA 3 Venice 2 2 0 2 0 6

Rope Mop 77 2 0 3 Harvey 2 2 2 2 0 8
Foilex Skim Package (TDS 150) 891 45 NA 3 Lake Charles 2 2 8 2 0 14

Foilex Skim Package (TDS 150) 891 45 NA 3 Galveston 2 2 13 2 0 19

Foilex Skim Package (TDS 150) 891 45 NA 3 Ha rvey 2 2 2 2 0 8
4 Drum Skimmer (Magnum 100) 686 100 1 Crew 3 Lake Charles 2 2 8 2 0 14

4 Drum Skimmer (Magnum 100) 686 100 1 Crew 3 Harvey 2 2 2 2 0 8
2 Drum Skimmer (TDS 118) 240 100 1 Crew 3 Lake Charles 2 2 8 2 0 14

2 Drum Skimmer (TDS 118) 240 100 1 Crew 3 Harvey 2 2 2 2 0 8Shoreline Protection Staging Area: Venice

Shoreline

Protection Boom VOO Persons Req. Storage/Warehouse

Location Hrs to

Procure Hrs to

Loadout Travel to

Venice Travel to Deployment Site Hrs to Deploy Total Hrs

AMPOL (Avail able through MSA)

42,000’ 18” Boom 16 Crew 40 New Iberia, LA 2 2 6 2 12 24

20,000’ 18” Boom 8 Crew 20 New Orleans, LA 2 2 2 2 6 14

OMI Environmental (Available through MSA)

10,000’ 18” Boom 4 Crew 10 New Iberia, LA 1 1 6 2 3 13

10,000’ 18” Boom 4 Crew 10 Houston, TX 1 1 12 2 3 19

10,000’ 18” Boom 4 Crew 10 Port Arthur, TX 1 1 9.6 2 3 16.6

20,000’ 18” Boom 8 Crew 20 Belle Chasse, LA 1 1 2 2 6 12

10,000’ 18” Boom 4 Crew 10 Port Allen, LA 1 1 4.5 2 3 11.5

10,000’ 18” Boom 4 Crew 10 Houma, LA 1 1 4 2 3 11

15,000’ 18” Boom 6 Crew 14 Gretna, LA (Warehouse) 2 2 2 2 4 12

Wildlife Response EDRC Storage Capacity VOO Persons Req. From Hrs to

Procure Hrs to

Loadout Travel to Staging Travel to Deployment Hrs to Deploy Total

Hrs

CGA

Wildlife Support Traile r NA NA NA 2 Harvey 2 2 2.1 1 2 9.1

Bird Scare Guns (48) NA NA NA 2 Harvey 2 2 2.1 1 2 9.1

Bird Scare Guns (12) NA NA NA 2 Galveston 2 2 12.7 1 2 19.7

Bird Scare Guns (12) NA NA NA 2 Aransas Pass 2 2 17.7 1 2 24.7

Bird Scare Guns (24) NA NA NA 2 Lake Charles 2 2 8 1 2 15

Bird Scare Guns (24) NA NA NA 2 Leeville 2 2 4.4 1 2 11.4

Response Asset Total

Offshore EDRC 456,592

Offshore Recovered Oil Capacity 503,605

Nearshore / Shallow Water EDRC 137,366

Nearshore / Shallow Water Recovered Oil Cap acity 156,181

### Freeport

- McMoRan Oil & Gas LLC Section 9

– Pg. 20 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 9

ENVIRONMENTAL MONITORING INFORMATION

9.1 MONITORING SYSTEMS

FM O&G will monitor loop currents per the requirements as set forth in NTL No. 

### 2009

- G02 , “Ocean Current Monitoring.”

9.2 INCID ENTAL TAKES There is no reason to believe that any of the endangered species or marine mammals as listed in the ESA will be “taken as a result of the opera tions proposed under this plan.

It has been documented that the use of explosives and or seismic devices can affect marine life. Operations proposed in this plan will not be uti lizing either of th ese devices.

FM O&G will adhere to the requirements as set forth in the following documents, as applicable, to avoid or minimize impacts to any of the species listed in the Endangered Species Act (ESA) as a result of the operations conducted herein:

• NTL No

. 2012

- BSEE

- G01, “Marine Trash and Debris Awareness and

Elimination”

• NTL No. 2012

- JOINT

- G01, “Vessel Strike Avoidance and Injured/Dead Protected Species Reporting”

• NTL No. 2012

- JOINT

- G02, “Implementation of Seismic Survey Mitigation

Measures and Protected Species Observer Program”

9.3 FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY Mississippi Canyon Blocks 126 and 127 are not located in the Flower Garden Banks National Marine Sanctuary; therefore, relevant information is not required in this EP.

### Freeport

- McMoRan Oil & Gas LLC Section 10

– Pg. 21 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 10

LEASE STIPULATIONS INFORMATION

Exploration activities are subject to the following stipulations attached to Lease OCS

- G 18194/19925, Mississip pi Canyon Blocks 126 and 127.

10. 1 MARINE PROTECTED SPECIES

In accordance with t he Federal Endangered Species Act and the Marine Mammal

Protecti on Act

, FM O&G will:

(a) collect and remove flotsam resulting from activities related to exploration,
development, and production of this lease;

(b) post signs in prominent places on all vessels and platforms used as a result of
activities related to explo ration, development, and production of this lease detailing the reasons (legal and ecological) why release of debris must be eliminated;

(c) observe for marine mammals and sea turtles while on vessels, reduce vessel speed
to 10 knots or less when assemblag es of cetaceans are observed, and maintain a distance of 90 meters or greater from whales, and a distance of 45 meters or greater
from small cetaceans and sea turtles;

(d) employ mitigation measures prescribed by BOEM/BSEE or the National Marine

Fisheries Service (NMFS) for all seismic surveys, including the use of an “exclusion
zone” based upon the appropriate water depth, ramp

- up and shutdown procedures,
visual monitoring, and reporting;

(e) identify important habitats, including designated critical habit at, used by listed species (e.g., sea turtle nesting beaches, piping plover critical habitat), in oil spill contingency planning and require the strategic placement of spill cleanup equipment to
be used only by personnel trained in less

- intrusive cleanup t echniques on beaches and bay shores; and

(f) immediately report all sightings and locations of injured or dead protected species (e.g., marine mammals and sea turtles) to the appropriate stranding network. If oil and gas industry activity is responsible fo r the injured or dead animal (e.g., because of a vessel strike), the responsible parties should remain available to assist the stranding
network. If the injury or death was caused by a collision with the lessee’s vessel, the lessee must notify BOEM within 24 hours of the strike.

BOEM and BSEE issue Notices to Lessees (NTLs), which more fully describe measures
implemented in support of the above

- mentioned implementing statutes and regulations,

### Freeport

- McMoRan Oil & Gas LLC Section 10

– Pg. 22 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) as well as measures identified by the U.S. Fish and Wildlife Serv ice and NMFS arising from, among others, conservation recommendations, rulemakings pursuant to the
MMPA, or consultation. The lessee and its operators, personnel, and subcontractors,
while undertaking activities authorized under this lease, must implement and comply with the specific mitigation measures outlined in NTL No. 2012

- JOINT

- G01, “Vessel Strike Avoidance and Injured/Dead Protected Species Reporting;” NTL No. 2012

- JOINT

- G02, “Implementation of Seismic Survey Mitigation Measures and Protected Species Observer Program;” and NTL No. 2012

- BSEE

- G01, “Marine Trash and Debris
Awareness and Elimination.” At the lessee’s option, the lessee, its operators, personnel, and contractors may comply with the most current measures to protect
species in place at the time an activity is undertaken under this lease, including but not limited to new or updated versions of the NTLs identified in this paragraph. The lessee
and its operators, personnel, and subcontractors will be required to comply with the mitigation measu res, identified in the above referenced NTLs, and additional measures in the conditions of approvals for their plans or permits.

### Freeport

- McMoRan Oil & Gas LLC Section 11

– Pg. 23 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 11

ENVIRONMENTAL MITIGATION MEASURES INFORMATION

11.1 MEASURES TAKEN TO AVOID, MINIMIZE, AND MITIGATE IMPACTS Mississippi Canyon Blocks 126 and 127 are not located within Florida; therefore, mitigation information is not required for the activities proposed in this plan.

11.2 INCIDENTAL TAKES

FM O&G will adhere to the requirements as set forth in the following documents, as
applicable, to avoid or minimiz e impacts to any of the species listed in the Endangered Species Act (ESA) as a result of the operations conducted herein:

• NTL No. 2012

- BSEE

- G01, “Marine Trash and Debris Awareness and

Elimination”

• NTL No. 2012

- JOINT

- G01, “Vessel Strike Avoidance and Injur ed/Dead Protected Species Reporting”

• NTL No. 2012

- JOINT

- G02, “Implementation of Seismic Survey Mitigation Measures and Protected Species Observer Program”

### Freeport

- McMoRan Oil & Gas LLC Section 12

– Pg. 24 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 12

SUPPORT VESSELS AND AIRCRAFT INFORMATION

12.1 GENERAL The most practical, direct route from the shore base as permitted by weather and traffic

conditions will be utilized.

Type Maximum Fuel Tank Capacit y Maximum

Number in Area at Any Time Trip Frequency or

Duration

Crew Boat 1,800 bbls 1 3 /week

Supply Boat 9,000 bbls 1 3 /week

Supply Boat 5,800 bbls 1 3/week

Helicopter 760 gals 1 2 /week

12.2 DIESEL OIL SUPPLY VESSELS

Size of Fuel Supply Vessel Capacity of Fuel Supply Vessel Frequency of
Fuel Transfers Route Fuel Supply

Vessel Will Take

265 ’ 9,000 bbls Bi

- weekly Shortest route from
Shore base to Mississippi Canyon 127

265’ 9,000 bbls Bi

- weekly Shortest route from
Shore base to Mississippi Canyon 127

312’ 5,800 bbls Bi

- weekly Shortest route from
Shore base to Mississippi Canyon 127

12.3 DRILLING FLUID TRANSPORTATION Drilling fluid transportation information is not required to be submitted with this plan

.

12.4 SOLID AND LIQUID WASTE TRANSPORTATION
A table, “ Wastes You Will Transport and/or Dispose of Onshore

, ” is included as

Attachment 12

- A.

12.5 VICINITY MAP

A vicinity map showing the location of the activities proposed herein relative to the shoreline with the distance of the proposed activities from the shoreline and the primary

### Freeport

- McMoRan Oil & Gas LLC Section 12

– Pg. 25 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) route(s) of the support vessels and aircraft that will be used when traveling bet ween the onshore support facilities and the wells are included as Attachment 12

- B.

# TABLE 2. WASTE YOU WILL TRANSPORT AND/OR DISPOSE OF ONSHORE

Transport Method Name/Location of

Facility Amount Disposal

Method 

### Solid and Liquid

Wastes
Transportation Waste Disposal

Synthetic-based drilling fluid
Cuttings wetted with Water-based fluid Recycled

N/A Internal olefin, ester / SBM Cuttings boxes on supply boat Newpark environmental Services 145 17th

St, Port Fourchon, LA 1000 bbls/well Will drilling occur? If yes, fill in the muds and cuttings. Composition 

### Projected Generated

Wastes

Oil-based drilling fluid or mud N/A

Produced sand
Will you have additional wastes that are not permitted for discharge? If yes, fill in the appropriate rows.

Trash and debris

Used oil N/A N/A

No production is proposed under this Initial Exploration Plan

Waste generated during operations:
paper, metal and glass Compactor bags in storage bins on supply
/ crew boat Gulf Shore Logistics, Port Fourchon, LA 130,000 lbs/well Recycled if possible.

Otherwise,
transported to

landfill.

Used engine oil Proper DOT containers on supply boat Univar, Carencro, LA 215 bbl/well Internal olefin, ester / SBM film

N/A N/A

Cuttings wetted with oil-based fluids
Wll you produce hydrocarbons? If yes fill in produced sand. Cuttings wetted with Synthetic-based

fluid Cuttings boxes on supply boat Newpark environmental Services 145 17th

St, Port Fourchon, LA N/A N/A

210 bbls/well

N/A N/A

Recycled

N/A

Recycled or

incinerated

N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A Wash water
Chemical product wastes...\MC\Horn Mtn\VicinityHM.dgn

### Freeport

- McMoRan Oil & Gas LLC Section 13

– Pg. 26 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 13

ONSHORE SUPPORT FACILITIES INFORMATION

13.1 GENERAL

Name Location Existing/New/Modified

Freeport

- McMoRan Oil &
Gas Shorebase
C

– Terminal Dock Fourchon, LA Existing

MI

- Swaco Mud Plants Fourchon, La Existing

13.2 SUPPORT BASE CONSTRUCTION OR EXPANSION There will be no new construction of an onshore support base, nor will we expand the
existing shore base as a result of the operations pro posed in this EP

.

13.3 SUPPORT BASE CONSTRUCTION OR EXPANSIO N TIMETABLE

A support base construction or expansion timetable is not required for the activities
proposed in this plan

.

13.4 WASTE DISPOSAL
The Table, “ Wastes You Will Transport and/or Dispose of Onshore

, “is included as

Attachment 12

- A

.

### Freeport

- McMoRan Oil & Gas LLC Section 14

– Pg. 27 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 14

COASTAL ZONE MANAGEMENT ACT (CZMA) INFORMATION

Relevant enforceable policies were considered in certifying consistency for Louisiana. A certificate of Coastal Zone Management Consistency for the state of Louisiana is

included as Attachment 14

- A.

### Freeport

- McMoRan Oil & Gas LLC Section 14

– Pg. 28 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) The OCS related oil and gas development activities having potential impact on the Alabama Coastal Zone are based on the location of the proposed facilities, access to
those sites, best practical technique for operations and production equipment, guidelines for the prevention of adverse environmental effects, effective environmental
protection, emergency plans and contingency plans. Alabama policies have been addressed below or are cross referenced to the ap propriate sections of the plan:

Topic Cr oss Reference Comments

**Coastal**

**Resource Use**
**Policies**

Coastal Development Dock and port facilities in Louisiana will be used. There will be no new construction, dredging, or filling in

Alabama state waters. There will be no new commercial development or capital improvements in Alabama’s coastal zone, nor will there be any employment effects.

Mineral

Resource Exploration

and Extraction Proposed exploration operations will take place 62.0
miles from Alabama’s coastline.

Commercial Fishing Section 8

Hazard Management Section 3 A Shallow Hazards Report has been prepared and submitted to BOEM in order to identify and assess the seafloor and shallow geologic conditions in these blocks.

Shoreline

Erosion Section 8 Proposed exploration operations will take place 62.0
miles from Alabama’s coastline.

Recreation Section 8

Transportation Section 12

**Natural**

**Resource**
**Protection**

**Policies** Biological Productivity Section 8

Water Quality Section 8

Water

Resources Section 8

Air Quality Section 7

Wetlands and Section 8

### Freeport

- McMoRan Oil & Gas LLC Section 14

– Pg. 29 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) Topic Cr oss Reference Comments

Submerged
Grassbeds

Beach and

Dune

Protection Section 8

Wildlife Habitat

Protection Section 8

Endangered Species Section 8

Cultural

Resources

Protection Section 5 Mississippi Canyon Blocks 126 and 127 are located in an

area where historic shipwrecks may exist. An archaeological report was prepared by C&C Technologies Survey Services and it was determined that there are no known historic shipwrecks located in the block. The report is submitted with this EP.

The proposed activities described in detail in this Plan comply with Alabama’s approved Coastal Zone Management Programs and will be conducted in a manner consistent with
such Programs.

A certificate of Coastal Zone Management Consistency for the state of Alabama is

included as Attachment 14

- B

.

### Freeport

- McMoRan Oil & Gas LLC Section 15

– Pg. 30 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 15

ENVIRONMENTAL IMPACT ANALYSIS

The Environmental Impact Analysis is included as Attachment 15

- A.

# Freeport

- McMoRan Oil & Gas LLC ( FMO&G )

Supplemental Exploration Plan Mississippi Canyon Block s 126 and 127

OCS

- G 18194/19925

(A) IMPACT PRODUCING FAC TORS

ENVIRONMENTAL IMPACT ANALYSIS WORKSHEET

Environment

Resources Impact Producing Factors (IPFs) Categories and Examples Refer to recent GOM OCS Lease Sale EIS for a more complete list of IPFs

Emissions (air, noise, light, etc.) Effluents

(muds, cutting, other discharges to

the water

column or seafloor) Physical

disturbances to the seafloor (rig or

anchor emplacements, etc.) Wastes sent

to shore for

treatment or disposal Accidents

(e.g., oil spills,

chemical spills, H 2 S releases) Discarded

Trash &

Debris

Site

- specific at Offshore

Location

Designated topographic features (1) (1) (1)

Pinnacle Trend area live bottoms (2) (2) (2)

Eastern Gulf live bottoms (3) (3) (3)

Benthic communities (4)

Water quality X X

Fisheries X X

Marine Mammals X(8) X X(8) X

Sea Turtles X(8) X X(8) X

Air quality X(9)

Shipwreck sites (known or potential) (7)

Prehistoric archaeological sites (7)

Vicinity of Offshore Location

Essential fish habitat X X(6)

Marine and pelagic birds X X X

Public health and safety (5)

Coastal and Onshore

Beaches X(6) X

Wetlands X (6) X

Shore birds and coastal nesting

birds X ( 6) X

Coastal wildlife refuges

Wilderness areasFootnotes for Environmental Impact Analysis Matrix

1) Activities that may affect a marine sanctuary or topographic feature. Specifically, if the well or platform site or any anchors will be on the seafloor within the:

o 4

- mile zone of the Flower Garden Banks, or the 3

- mil e zone of Stetson Bank;

o 1000

- m, 1

- mile or 3

- mile zone of any topographic feature (submarine bank) protected by the Topographic Features Stipulation attached to an OCS lease;

o Essential Fish Habitat (EFH) criteria of 500 ft. from any no

- activity zone; or

o Pro ximity of any submarine bank (500 ft. buffer zone) with relief greater than 2 meters that is not protected by the Topographic Features Stipulation attached to an OCS lease.

2) Activities with any bottom disturbance within an OCS lease block protected through the Live Bottom (Pinnacle Trend) Stipulation attached to an OCS lease. 3) Activities within any Eastern Gulf OCS block where seafloor habitats are protected by the Live Bottom (Low

Relief) Stipulation attached to an OCS lease. 4) Activities on blocks designated by the BOEM as being in water depths 300 meters or greater. 5) Exploration or production activities where H2S concentrations greater than 500 ppm might be encountered. 6) All activities that could result in an accidental spill of produced liquid hydrocarbons or diesel fuel that you determine would impact these environmental resources. If the proposed action is located a sufficient distance from a resource that no impact would occur, the EIA can note that in a sentence or two. 7) All activities that involve seafloor disturbances, including anchor emplacements, in any OCS block designated by the BOEM as having high

- probability for the occurrence of shipwrecks or prehistoric sites, including such blocks that will be affected that are adjacent to the lease block in which your planned activity will occur. If the proposed activities are located a sufficient distance from a shipwreck or a prehistoric site that no impact would occur, the EIA can note that in a sentence or two. 8) All activities that you determine might have an adverse effect on endangered or threatened marine mammals or

sea turtles or their critical habitats. 9) Production activities that involve transportation of produced fluids to shore using shuttle tankers or barges.

## ( B ) Analysis

Site

- Specific at Mississippi Canyon Blocks 126 and 127

Proposed operations consist of the drilling, completion, testing, flaring, and installation of subsea

trees for Well Locations A

- D

. The operations will be conducted with two dynamically positioned drillships

.

1. Designated T opographic F eatures

Potential IPFs on topographic features include effluents, and accidents.

Effluents: Mississippi Canyon Blocks 126 and 127 are 91 mil es from the closest designated

T opographic F eature s Stipulation Block ( Sackett Bank ); therefore

, no adverse impacts are expected.

Accidents: It is unlikely that an accidental surface or subsurface spill would occur from the proposed activities (refer to statistics in Item 5 , Water Q uality). Oil spills cause damage to benthic organisms only if the oil contacts the organisms. Oil from a surface spill can be driven into the water column; measurable amounts have been d ocumented down to a 10 m depth. At this depth, the oil is found only at concentrations several orders of magnitude lower than the

amou nt shown to have an effect on corals. Because the crests of topographic features in the Northern Gulf of Mexico are found below 10 m, no oil from a surface spill co uld reach their

sessile biota. Oil from a subsurface spill is not applicable due to the dist ance of these blocks from a topographic area. The activities proposed in this plan will be covered by FMO&G ’s Regional OSRP (refer to information submitted in Section 8 ).

There are no other IPFs (including emissions , physical disturbances to the seafloor and wastes sent to shore for disposal) from the proposed activities, which could impact topographic features.

2. Pinnacle T rend A rea L ive B ottoms

Potential IPFs on pinnacle trend area live bottoms include effluents and accidents.

Effluents: Mississipp i Canyon Blocks 126 and 127 are 24 miles from the closest live b ottom (pinnacle trend) area; therefore

, no adverse impacts are expected.

Accidents: It is unlikely that an accidental surface or subsurface spill would occur from the proposed activities (refer to statistics in Item 5 , Water Q uality). Oil spills have the potential to

foul benthic communities and cause lethal and sublethal eff ects on liv e bottom organisms. Oil from a surface spill can be driven into the water column; measurable amounts have been documented down to a 10 m depth. At this depth, the oil is found only at concentrations several

### orders of magnitude lower than the amount shown to have an effect on marine organisms. Oil

from a subsurface spill is not applicable due to the distance of these blocks from a live bottom (pinnacle trend) area. The activities proposed in this plan will be covered by FMO&G ’s Regional OSRP (refer to infor mation submitted in Section 8 ).

There are no other IPFs (including emissions , physical disturbances to the seafloor and wastes sent to shore for disposal) from the proposed activities which could impact a live bottom (pinnacle trend) area.

3. Eastern G ulf Live B ottoms

Potential IPFs on Eastern Gulf live bottoms include effluents and accidents.

Effluents: Mississippi Canyon Blocks 126 and 127 are not located in an area characterized by the existence of live bottoms; therefore, no adverse impacts are ex pected.

Accidents: It is unlikely that an accidental surface or subsurface spill would occur from the proposed activities (refer to statistics in Item 5

, Water Q uality). Oil spills cause damage to live bottom organisms only if the oil contacts the organi sms. Oil from a surface spill can be driven into the water column; measurable amounts have been documented down to a 10 m depth. At this depth, the oil is found only at concentrations several orders of magnitude lower than the

amount shown to have an eff ect on marine invertebrates. Oil from a subsurface spill is not applicable due to the distance of these blocks from a live bottom area. The activities proposed in this plan will be covered by FMO&G ’s Regional OSRP (refer to information submitted in

Section 8 ).

There are no other IPFs (including emissions , physical disturbances to the seafloor and wastes sent to shore for disposal) from the proposed activities which could impact an Eastern Gulf live

bottom area.

4. Benthic C ommunities
There are no IPFs (including emissions, physical disturbances to the seafloor, wastes sent to shore for disposal, or accidents) from the proposed activities that could cause impacts to benthic

communities.

Two dynam ically positioned drillships are being used for the proposed activities ; therefore

, only an insignificant amount of seafloor will be disturbed. Because physical disturbances to the seafloor will be minimized by the use of the dynamically positi oned drillships

, FMO&G ’s proposed operation s in Mississippi Canyon Blocks 126 and 127 would not cause impacts to

benthic communities.

### 5. Water Q uality

IPFs that could result in water quality degradation from the proposed operations in Mississippi Canyon Blocks 126 and 127 include effluents and acc idents.

Effluents: Levels of contaminants in drilling muds and cuttings and produced water discharges, discharge

- rate restrictions and monitoring and toxicity testing are regulated by the EPA NPDES permit, thereby eliminating many significant biological or ecological effects. Operational discharges are not expected to cause significant adverse impacts to water quality.

Accidents: Oil spills have the potential to alter offshore water quality; however, it is unlikely

that an accidental surface or subsurf ace spill would occur from the proposed activities. Between 1980 and 2000, OCS operations produced 4.7 billion barrels of oil and spilled only 0.001 percent of this oil, or 1 bbl for every 81,000 bbl produced. The spill risk related to a diesel spill from drilling operations is even less. Between 1976 and 1985, (years for which data were collected), there were 80 reported diesel spills greater than one barrel associated with drilling activities. Considering that there were 11,944 wells drilled, this is a 0.7 percent probability of an

occurrence. If a spill were to occur, the water quality of marine waters would be temporarily affected by the dissolved comp onents and small oil droplets. Dispersion by currents and microbial degradation would remove the oil from the water column and dilute the cons tituents to background levels. Historically, changes in offshore water quality from oil spills have only been detected during the life of the spill and up to several months afterwards. Most of the components

of oil are insoluble in water and therefore float. The activities proposed in this plan will be covered by FMO&G ’s Regional Oil Spill Response Plan (refer to information submitted in

Section 8 ).

There are no other IPFs (including emissions, physical disturbances to the seafloor, and wastes sent to shore for disposal) from the proposed activities which could cause impacts to water quality.

6. Fisheries

IPFs that could cause impacts to fisheries as a result of the proposed operations in Mississippi

Can yon Blocks 126 and 127 include effluents and accidents.

Effluents: Effluents such as drilling fluids and cuttings discharges contain components and properties which are detrimental to fishery resources. Moderate petroleum and metal

contamination of sedi ments and the water column can occur out to several hundred meters down

current from the discharge point. Offshore discharges are expected to disperse and dilute to very near background levels in the water column or on the seafloor within 3,000 m of the d ischarge point, and are expected to have negligible effect on fisheries.

Accidents: An accidental oil spill has the potential to cause some detrimen tal effects on fisheries; however, it i s unlikely that such an event would occur from the proposed activit ies

### (refer to Item 5 , Water Q uality). The effects of oil on mobile adult finfish or shellfish would

likely be sublethal and the extent of damage would be reduced to the c apacity of adult fish and

shell fish to avoid the spill, to metabolize hydrocarbons, an d to excrete both met abolites and parent compounds. The activities proposed in this plan will be covered by FMO&G ’s Regional OSRP (refer to information submitted in Section 8 ).

There are no IPFs from emissions, physical disturbances to the seafloor or wa stes sent to shore for disposal from the proposed activities which could cause impacts to fisheries.

7. Marine M ammals

GulfCet II studies revealed that cetaceans of the continental shelf and shelf

- edge were almost exclusively bottlenose dolphin and Atlant ic spo tted dolphin. Squid eaters, including dwarf and pygmy killer whale, Risso’s dolphin, rough

- toothed dolphin, and Cuvier’s beaked whale, occurred most frequently along the upper slope in areas outside of anticyclones. IPFs that could cause impacts to marine mammals as a result of the proposed operations in Mississippi Canyon

Blocks 126 and 127 include emissions, effluents, discarded trash and debris, and accidents.

Emissions : Noises from drilling activities, support vessels and helicopters may elic it a startle

reaction from marine mammals. This reaction may lead to disruption of marine mammals’ normal activities. Stress may make them more vulnerable to parasites, disease, environmental contaminants, and/or predati on (Majors and Myrick, 1990). There is little conclusive evidence for long

- term displacements and population trends for marine mammals relative to noise.

Effluents: Drilling fluids and cuttings discharges contain components which may be detrimental

to marine mammals. Most operational discharges are dilut ed and dispersed upon release. Any potential impact from drilling fluids would be indirect, either as a result of impacts on prey items or possibly through ingestion in the food chain (API, 1989).

Discarded trash and debris: Both en tanglement in, and ingestion of debris have caused the death or serious injury of marine mammals (Laist, 1997; MMC, 1999). The limited amount of marine debris, if any, resulting from the proposed activities is not expected to substantially harm

marine mamm als. Operators are prohibited from deliberately discharging debris as mandated by

MARPOL

- Annex V and the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the United States Coast Guard (USCG) and the

E nvironmental Protection Agency (EPA).

FMO&G will operate in accordance with the regulations and also avoid accidental loss of solid waste items by maintaining waste management plans, manifesting trash sent to shore, and using special precautions such as c overing outside trash bins to prevent ac cidental loss of solid waste. Special caution will be exercised when handling and disposing of small items and packaging materials, particularly those made of non

- biodegradable, environmentally persistent mater ials

s uch as plastic or glass.

### Informational placards will be posted on all vessels and facilities having sleeping or food

preparation capabilities. All offshore personnel, including contractors and other support

services

- related personnel (e.g. helicopter pi lots, vessel captains and boat crews) will be indoctrinated on waste procedures, and will view the video (or Microsoft PowerPoint presentation)

, “Think About It” ( previously “All Washed Up: The Beach Litter Problem” ). Thereafter, all personnel will view th e marine trash and debris training video annually. Offshore personnel will also receive an explanation from FMO&G management or the designated lease operator management that emphasizes their commitment to waste management in accordance

with NTL No. 2012

- G 01

.

Accidents: Collisions between support vessels and cetaceans would be unusual events, however should one occur, death or injury to marine mammals is possible. Contract vessel operators can avoid marine mammals and reduce potential deaths by maintaini ng a vigilant watch for marine mammals and maintaining a safe d istance when they are sighted. Vessel crews should use a reference guide to help identify the twenty

- eight species of whales and dolphins, and the single species of manatee that may be encounte red in the Gulf of Mexico OCS. Vessel crews must report sightings of any injured or dead protected marine mammal species immediately, regardless of whether the injury or death is caused by their vessel, to the Marine Mammal and Sea Turtle Stranding Hotlin e at (888) 404

- 3922, the NMFS Southeast Regional Office at (727)

824

- 5312, or the Marine Mammal Stranding Network at (305) 862

- 2850. In addition, if the injury or death was caused by a collision with a contract vessel, the BOEM must be notified

within 24 hours of the strike by email to protectedspecies@boemre.gov . If the vessel is the responsible party, it is required to remain available to assist the respective salvage and stranding

network as needed.

Oil spills have the potential to cause sublethal oi l

- related injuries and spill

- related deaths to marine mammals. However, it is unlikely that an accidental oil spill would occur from the proposed activities (ref

er to Item 5 , Water Q uality). Oil spill response activities may increase

vessel traffic in the area, which could add to changes in cetacean behavior and/or distribution, thereby causing additional stress to the animals. The effect of oil dispersants on cetaceans is not known. The acute toxicity of oil dispersant chemicals included in FMO&G ’s OSRP is considered to be low when compared with the constituents and fractions of crude oils and diesel products. The activities proposed in this plan will be covered by FMO&G ’s OSRP (refer to

information submitted in accordance with Section 8 ).

There are no other IPFs (including physical disturbances to the seafloor) from the proposed activities which could impact marine mammals.

8. Sea T urtles

IPFs that could cause impacts to sea turtles as a result of the proposed operations include emissions, effluents, discarded trash and debris, and accidents. GulfCet II studies sighted most loggerhead, Kemp’s ridley and leatherback sea turtles over shelf waters. Historically these

### species have been sighted up to the shelf’s edge. They appear to be more abundant east of the

Mississippi River than they are west of the river (Fritts et al., 1 983b; Lohoefener et al., 1990). Deep waters may be used by all species as a transitory habitat.

Emissions: Noise from drilling activities, support vessels, and helicopters may elic it a startle reaction from sea turtles, but th is is a temporary disturbance.

Effluents: Drilling fluids and cuttings discharges are not know n to be lethal to sea turtles. Most operational discharges are diluted and dispersed upon release. Any potential impact from drilling fluids would be indirect, either as a result of impacts on prey items or possibly through ingestion in the food chain (API, 1989).

Discarded trash and debris: Both entanglement in, and ingestion of, debris have caused the

death or se rious injury of sea turtles (Balazs, 1985). The limited amount of marine debris, if any, resulting from the proposed activities is not expected to s ubstantially harm sea turtles. Operators are prohibited from deliberately discharging debris as mandated by MARPOL

- Annex V and the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the United States Coast Guard (USCG) and the Environmental Protection Agency (EPA). FMO&G will operate in accordance with the regulations and also avoid accidental loss of solid waste items by maintaining waste management plans, manifesting trash sent to shore, and using special precautions such as covering outside trash bins to prevent ac cidental loss of

solid waste. Special cau tion will be exercised when handling and disposing of small items and packaging materials, particularly those made of non

- biodegradable, environmentally persistent

mater ials such as plastic or glass.

Informational placards will be posted on all vessels an d facilities having sleeping or food preparation capabilities. All offshore personnel, including contractors and other support

services

- related personnel (e.g. helicopter pilots, vessel captains and boat crews) will be indoctrinated on waste procedures, a nd will view the video (or Microsoft PowerPoint presentation)

, “Think About It” ( previously “All Washed Up: The Beach Litter Problem” ). Thereafter, all personnel will view the marine trash and debris training video annually. Offshore personnel will also r eceive an explanation from FMO&G management or the designated lease operator management that emphasizes their commitment to waste management in accordance

with NTL No. 2012

- G01

.

Accidents: Collisions between support vessels and sea turtles would be unusu al events, however should one occur, death or inju ry to sea turtles is possible. Contract vessel operators can avoid sea turtles and reduce potential deaths by maintaining a vigilant watch for sea turtles and maintaining a safe distance when they are sight ed. Vessel crews should use a reference guide to help identify the five species of sea turtles that may be encounte red in the Gulf of Mexico OCS. Vessel crews must report sightings of any injured or dead protected sea turtle species immediately, regardles s of whether the injury or death is caused by their vessel, to the Marine Mammal and Sea Turtle Stranding Hotline at (888) 404

- 3922, the NMFS Southeast Regional

### Office at (727) 824

- 5312, or the Marine Mammal Stranding Network at (305) 862

- 2850. In

addition, if the injury or death was caused by a collision with a contract vessel, the BOEM must be notified within 24 hours of the strike by email to protectedspecies@boemre.gov

. If the vessel is the responsible party, it is required to remain availa ble to assist the respective salvage and stranding network as needed.

All sea turtle species and their life stages are vulnerable to the harmful effects of oil through direct contact or by fouling of their food. Exposure to oil can be fatal, particularly to juveniles and hatchlings. However, it is unlikely that an accidental oil spill would occur from the proposed activities (refer to Item 5 , Water Q uality). Oil spill response activities may increase vessel traffic in the area, which could add to the poss ibility of collisions with sea turtles. The activities proposed in this plan will be covered by FMO&G ’s Regional Oil Spill Response Plan (refer to

information submitted in accordance with Section 8 ).

There are no other IPFs (including physical disturbances to the seafloor) from the proposed activities which could impact sea turtles.

9. Air Quality

Mississippi Canyon Blocks 126 and 127 are located 79 miles from the Breton Wilderness Area

and 62 miles from shore. Applicable emissions data is inc luded in Section 7 of the Plan.

There would be a limited degree of air quality degradation in the immediate vicinity of the proposed activities. Plan Emissions for the proposed activities do not exceed the annual exemption levels as set forth by BOEM . A ccidents and blowouts can release hydrocarbons or chemicals, which could cause the emission of air pollutants. However, these releases would not impact onshore air quality because of the prevailing atmospheric conditions, emission height, emission rates, and the distance of Mississippi Canyon Blocks 126 and 127 from the coastline. There are no other IPFs (including effluents, physical disturbances to the seafloor, wastes sent to shore for treatment or disposal) from the proposed activities which would imp act air quality.

10. Shipwreck Sites (known or potential)

Potential IPFs that could impact known or unknown shipwreck sites as a result of the proposed operations in Mississippi Canyon Blocks 126 and 127 include disturbances to the seafloor.

Physical dis turbances to the seafloor: Two dynamically positioned drillships are being used for the proposed activities; therefore, only an insignificant amount of seafloor will be disturbed. Because physical disturbances to the seafloor will be minimized by the use of the dynamically positioned drillships

, FMO&G ’s proposed operation s in Mississippi Canyon Blocks 126 and 127 would not cause impacts to shipwreck sites.

### Additionally, Mississippi Canyon Blocks 126 and 127 are not located in or adjacent to an OCS

block designated by BOEM as having a high probability for occurrence of shi pwrecks, therefore, no adverse impacts are expected.

FMO&G will perform an AUV/ ROV survey imaging 100% of the seafloor with sector scanning sonar within a minimum 500’ radius of the proposed well location(s) prior to or upon commencement of operations. T hese locations will be certified by an authorized marine archaeologist and by FMO&G to be clear of seafloor archaeological resources, including historic shipwrecks. Copies of the certifications and a circle radius plat of the survey area will be

submitted to the BOEM. Should a resource be encountered, FMO&G will contact the BOEM immediately and make every reasonable effort to preserve and protect that cultural resource.

There are no other IPFs (including emissions, effluents, wastes sent to shore for tre atment or disposal, or accidents) from the proposed activities that could cause impacts to shipwreck sites.

11. Prehistoric Archaeological Sites
IPFs that could cause impacts to prehistoric archaeological sites as a result of the proposed operations in Mi ssissippi Canyon Blocks 126 and 127 are physical disturbances to the seafloor and accidents (oil spills).

Physical Disturbances to the seafloor: Although the operations proposed will be conducted by utilizing two d ynamically positioned drillships , whic h would cause only an insignificant amount of seafloor to be disturbed, Mississippi Canyon Blocks 126 and 127 are located inside the Archaeological Prehistoric high probability lines. FMO&G will report to BOEM the discovery of any object of prehistoric arc haeological significance and make every reasonable effort to preserve and protect that cultural resource.

FMO&G will perform an AUV/ ROV survey imaging 100% of the seafloor with sector scanning sonar within a minimum 500’ radius of the proposed well location(s) prior to or upon commencement of operations. These locations will be certified by an authorized marine archaeologist and by FMO&G to be clear of seafloor archaeological resources. Copies of the certifications and a circle radius plat of the survey area will be submitted to the BOEM. Should a resource be encountered, FMO&G will contact the BOEM immediately and make every

reasonable effort to preserve and protect that cultural resource. .

Accidents: An accidental oil spill has the potential to cause some detrimental effects to prehistoric archaeological sites if the release were to occur subsea. However, it is unlikely that

an acc idental oil spill would occur from the proposed activities (refer to Item 5 , Water Quality). The activities proposed in this plan will be covered by FMO&G ’s Regional Oil Spill Response Plan (refer to information submitted in accordance with Section 8 ).

Th ere are no other IPFs (including emissions, effluents or wastes sent to shore for treatment or disposal) from the proposed activities which could impact prehistoric archeological sites.

### Vicinity of Offshore Location

1. Essential F ish H abitat (EFH)

IPFs that could cause impacts to EFH as a result of the proposed operations in Mississippi Canyon Blocks 126 and 127 include effluents and accidents. EFH includes all estuarine and

marine waters and substrates in the Gulf of Mexico.

Effluents: The Live Bottom Low Relief Stipulation, the Live Bottom (Pinnacle Trend) Stipulation, and the Eastern Gulf Pinnacle Trend Stipulation would prevent most of the potential impacts on live

- bottom communities and EFH from operational waste discharges. Levels of

contam inants in drilling muds and cuttings and produced

- water discharges, discharge

- rate restrictions, and monitoring and toxicity testing are regulated by the EPA NPDES permit, thereby eliminating many significant biological or ecological effects. Operational d ischarges are not expected to cause significant adverse impacts to EFH.

Accidents: An accidental oil spill has the potential to cause some detrimental effects on EFH. Oil spills that contact coastal bays and estuaries, as well as OCS waters when pelagic eggs and larvae are present, have the greatest potential to affect fisheries. However, it is unlikely that an oil spill would occur from the proposed activities (refer to Item 5 , Water Q uality). The activities proposed in this plan will be covered by FMO& G ’s Regional OSRP (refer to information

submitted in Section 8 ).

There are no other IPFs (including emissions, physical disturbances to the seaflo or and wastes sent to shore for treatment or disposal) from the proposed activities which could impact essent ial

fish habitat.

2. Marine and P elagic B irds

IPFs that could impact marine birds as a result of the proposed activities include air emissions, accidental oil spills, and discarded trash and debris fr om vessels and the facilities.

Emissions: Emissions of pollutants into the atmosphere from these activities are far below

concentrations which could harm coastal and marine birds.

Accidents: An oil spill would cause localized, low

- level petroleum hydrocarbon contamination. However, it is unlikely that an oil spill would occur from the proposed activities (refer to Item 5

, Water Q uality). Marine and pelagic birds feeding at the spill location may experience chronic, nonfatal, physiological stress. It is expected that few, if any, coastal and marine birds would actually be affected to that extent. The activities proposed in this plan will be covered by

FMO&G ’s Regional OSRP (refer to information submitted in Section 8 ).

### Discarded trash and debris : Marine and pelagic birds could become entangled and snared in

discarded trash and debris, or ingest small plastic debris, which can cause permanent injuries and death. Operators are prohibited from deliberately discharging debris as mandated by MARPOL

Annex V and the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the United States Coast Guard (USCG) and the Environmental Protection Agency (EPA). FMO&G will operate in accordance with the regulati ons and also avoid accidental loss of solid waste items by maintaining waste management plans, manifesting trash sent to shore, and using special precautions such as covering outside trash bins to prevent

ac cidental loss of solid waste. Special caution wil l be exercised when handling and disposing of small items and packaging materials, particularly those made of non

- biodegradable, environmentally persistent materials such as plastic or glass. Informational placards will be posted on all vessels and facili ties having sleeping or food preparation capabilities. All offshore personnel, including contractors and other support services

- related personnel (e.g. helicopter pilots, vessel captains and boat crews) will be indoctrinated on waste procedures, and will v iew

the video (or Microsoft PowerPoint presentation)

, “Think About It” ( previously “All Washed Up: The Beach Litter Problem” ). Thereafter, all personnel will view the marine trash and debris training video annually. Offshore personnel will also receive an explanation from FMO&G management or the designated lease operator management that emphasizes their commitment to waste management in accordance with NTL No. 2012

- G01

. Debris, if any, from these proposed

activities will seldom interact wit h marine and pe lagic birds; therefore, the effects will be negligible.

There are no other IPFs (including effluents, physical disturbances to the seafloor, or wastes sent to shore for treatment or disposal) from the proposed activities which could impact marine and pela gic birds.

3. Public H ealth and S afety D ue to A ccidents.

There are no IPFs (emissions, effluents, physical disturbances to the seafloor, wastes sent to

sho re for treatment or disposal or accidents, incl uding an accidental H 2 

### S release ) from the proposed ac tivities which could cause impacts to public health and safety. In accordance with

NTL No.’s 2008

- G04

, 2009

- G27, and 2009

- G31, sufficient information is included in Section 4 to justify our request that our proposed activities be classified by BSEE as H 2 

### S absent.

Coastal and Onshore

1. Beaches

IPFs from the proposed activities that could cause impacts to beaches include accidents (oil spills) and discarded trash and debris.

Accidents: Oil spills contacting beaches would have impacts on the use of r ecreational beaches and associated resources. Due to the distance from shore ( 62 miles) and the response capabilities that would be implemented, no significant adverse impacts are expected. The activities proposed

### in this plan will be covered by FMO&G ’s Regional OSRP (refer to information submitted in

Section 8 ).

Discarded trash and debris: Trash on the beach is recognized as a major threat to the enjoyment and use of beaches. There will only be a limited amount of marine debris, if any, resulting fro m the proposed activities. Operators are prohibited from deliberately discharging debris as mandated by MARPOL

- Annex V and the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the United States Coast Guard (USCG) and the Environm ental Protection Agency (EPA). FMO&G will operate in accordance with the regulations and also avoid accidental loss of solid waste items by maintaining waste management plans, manifesting trash sent to shore, and using special precautions such as covering outside trash bins to prevent ac cidental loss of solid waste. Special caution will be exercised when handling and disposing of small items and packaging materials, particularly those made of non

- biodegradable, environmentally persistent materials such as plastic or glass.

Informational placards will be posted on all vessels and facilities having sleeping or food preparation capabilities. All offshore personnel, including contractors and other support

services

- related person nel (e.g. helicopter pilots, vessel captains and boat crews) will be indoctrinated on waste procedures, and will view the video (or Microsoft PowerPoint presentation)

, “Think About It” ( previously “All Washed Up: The Beach Litter Problem” ). Thereafter, all personnel will view the marine trash and debris training video annually. Offshore personnel will also receive an explanation from FMO&G management or the designated lease operator management that emphasizes their commitment to waste management in accorda nce with NTL No. 2012

- G01

.

There are no other IPFs (emissions, effluents, physical disturbances to the seafloor, or wastes sent to shore for treatment or disposal) from the proposed activities which could impact beaches.

2. Wetlands

IPFs from the propose d activities that could cause impacts to wetlands include accidents (oil spills) and discarded trash and debris.

Accidents: It is unlikely that an oil spill would occur from the proposed activities (refer to Item

5 , Water Quality). Due to the distance from shore ( 62 miles) and the response capabilities that would be implemented, no impacts are expected. The activities proposed in this plan will be covered by FMO&G ’s Regional OSRP (refer to information submitted in Section 8 ).

Discarded trash and debri s: There will only be a limited amount of marine debris, if any, resulting from the proposed activities. Operators are prohibited from deliberately discharging debris as mandated by MARPOL

- Annex V and the Marine Plastic Pollution Research and

Control Act , and regulations imposed by various agencies including the United States Coast

### Guard (USCG) and the Environmental Protection Agency (EPA). FMO&G will operate in

accordance with the regulations and also avoid accidental loss of solid waste items by

maintai ning waste management plans, manifesting trash sent to shore, and using special precautions such as covering outside trash bins to prevent accidental loss of solid waste. Special caution will be exercised when handling and disposing of small items and pack aging materials, particularly those made of non

- biodegradable, environmentally persistent materials such as plastic or glass.

Informational placards will be posted on all vessels and facilities having sleeping or food preparation capabilities. All offshore personnel, including contractors and other support

services

- related personnel (e.g. helicopter pilots, vessel captains and boat crews) will be indoctrinated on waste procedures, and will view the video (or Microsoft PowerPoint presentation), “Thin k About It” ( previously “All Washed Up: The Beach Litter Problem” ). Thereafter, all personnel will view the marine trash and debris training video annually. Offshore personnel will also receive an explanation from FMO&G management or the designated lease operator management that emphasizes their commitment to waste management in accordance

with NTL No. 2012

- G01

.

There are no other IPFs (emissions, effluents, physical disturbances to the seafloor, or wastes sent to shore for treatment or disposal) from the proposed activities which could impact

wetlands.

3. Shore B irds and C oastal N esting B irds

Accidents: Oil spills could cause impacts to shore birds and coastal nesting birds. However, it is unlikely that an oil spill would occur from the proposed activit ies (refer to Item 5 , Water Quality). Given the distance from shore ( 62 miles) and the response capabilities that would be implemented, no impacts are expected. The activities proposed in this plan will be covered by

FMO&G ’s Regional OSRP (refer to info rmation submitted in Section 8 ).

Discarded trash and debris: Coastal and marine birds are highly susceptible to entanglement in floating, submerged, and beached marine debris: specifically plastics. Operators are prohibited from deliberately discharging debris as mandated by MARPOL

- Annex V and the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the United States Coast Guard (USCG) and the Environmental Protection Agency (EPA). FMO&G will operate i n accordance with the regulations and also avoid accidental loss of solid waste items by maintaining waste management plans, manifesting trash sent to shore, and using special precautions such as covering outside trash bins to prevent accidental loss of so lid waste. Special caution will be exercised when handling and disposing of small items and packaging materials, particularly those made of non

- biodegradable, environmentally persistent materials such as plastic or glass.

Informational placards will be posted on vessels and every facility that has sleeping or food preparation capabilities. All offshore personnel, including contractors and other support

services

- related personnel (e.g. helicopter pilots, vessel captains and boat crews) will be

### indoctrin ated on waste procedures, and will view the video (or Microsoft PowerPoint

presentation), “Think About It” ( previously “All Washed Up: The Beach Litter Problem” ). Thereafter, all personnel will view the marine trash and debris training video annually. Off shore personnel will also receive an explanation from FMO&G management or the designated lease operator management that emphasizes their commitment to waste management in accordance

with NTL No. 2012

- G01

.

There are no other IPFs (emissions, effluents, phy sical disturbances to the seafloor, or wastes sent to shore for treatment or disposal) from the proposed activities that could cause impacts to shore birds and coastal nesting birds.

4. Coastal Wildlife Refuges

Accidents: An accidental oil spill from the proposed activities could cause impacts to coastal wildlife refuges. However, it is unlikely that an oil spill would occur from the proposed activities (refer to Item 5, Water Quality). Due to the distance from shore ( 62 miles) and the response capabilit ies that would be implemented, no impacts are expected. The activities proposed in this plan will be covered by FMO&G ’s Regional OSRP (refer to information submitted in Section

8 ).

Discarded trash and debris: Operators are prohibited from deliberately discharging debris as mandated by MARPOL

- Annex V, the Marine Plastic Pollution Research and Control Act and regulations imposed by various agencies including the United States Coast Guard (USCG) and the Environmental Protection Agency (EPA). FMO&G will op erate in accordance with the regulations and also avoid accidental loss of solid waste items by maintaining waste management plans, manifesting trash sent to shore, and using special precautions such as covering outside trash bins to prevent accidental los s of solid waste. Special caution will be exercised when handling and disposing of small items and packaging materials, particularly those made of non

biodegradable, environmentally persistent materials such as plastic or glass.

Informational placards will be posted on vessels and every facility that has sleeping or food preparation capabilities. All offshore personnel, including contractors and other support

services

- related personnel (e.g. helicopter pilots, vessel captains and boat crews) will be

in doctrinated on waste procedures, and will view the video (or Microsoft PowerPoint presentation), “Think About It” ( previously “All Washed Up: The Beach Litter Problem” ). Thereafter, all personnel will view the marine trash and debris training video annually. Offshore personnel will also receive an explanation from FMO&G management or the designated lease operator management that emphasizes their commitment to waste man agement in accordance

with NTL No. 2012

- G01

.

There are no other IPFs (emissions, effluents, physical disturbances to the seafloor, or wastes sent to shore for treatment or disposal) from the proposed activities that could cause impacts to

coastal wildlife refuges.

### 5. Wilderness Areas

Accidents: An accidental oil spill from the proposed activities could cause impacts to wilderness areas. However, it is unlikely that an oil spill would occur from the proposed activities (refer to

Item 5 , Water Quality). Due to the distance from the nearest designated Wilderness Area ( 79 miles) and the response capabilities that would be implemented, no significant adverse impacts are expected. The activities proposed in this plan will be covered by FMO&G ’s Regional OSRP (re fer to information submitted in Section 8 ).

Discarded trash and debris: Operators are prohibited from deliberately discharging debris as mandated by MARPOL

- Annex V, the Marine Plastic Pollution Research and Control Act and regulations imposed by various agencies including the United States Coast Guard (USCG) and the Environmental Protection Agency (EPA). FMO&G will operate in accordance with the regulations and also avoid accidental loss of solid waste items by maintaining waste management plans, manifes ting trash sent to shore, and using special precautions such as covering outside trash bins to prevent accidental loss of solid waste. Special caution will be exercised when handling and disposing of small items and packaging materials, particularly thos e made of non

biodegradable, environmentally persistent materials such as plastic or glass.

Informational placards will be posted on vessels and every facility that has sleeping or food preparation capabilities. All offshore personnel, including contractors and other support

services

- related personnel (e.g. helicopter pilots, vessel captains and boat crews) will be indoctrinated on waste procedures, and will view the video (or Microsoft PowerPoint presentation), “Think About It” ( previously “All W

ashed Up: The Beach Litter Problem” ). Thereafter, all personnel will view the marine trash and debris training video annually. Offshore personnel will also receive an explanation from FMO&G management or the designated lease operator management that empha sizes their commitment to waste management in accordance

with NTL No. 2012

- G01

.

There are no other IPFs (emissions, effluents, physical disturbances to the seafloor, or wastes sent to shore for treatment or disposal) from the proposed activities that coul d cause impacts to

wilderness areas.

6. Other Envi ronmental Resources Identified
There are no other environmental resources identified for this impact assessment.

(C) IMPAC TS ON PROPOSED ACTIV ITIES

The site

– specific environmental conditions have been tak en into account for the proposed activities. No impacts are expected on the proposed activities from site

- specific environmental

conditions.

(D) ENVIRONMENTAL HAZARD S
During the hurricane season, June through November, the Gulf of Mexico is impacted by a n average of ten tropical storms (39

- 73 mph winds), of which six become hurricanes ( > 74 mph

### winds) . Due to its location in the gulf, Mississippi Canyon Blocks 126 and 127 may experience

hurricane and tropical storm force winds, and related sea currents. These factors can adversely impact the integrity of the operations covered by this plan. A significant storm may present physical hazards to operators and vessels, damage e xploration or production equipment, or result in the release of hazardous materials (including hydrocarbons). Additionally, the displacement of equipment may disrupt the local benthic habitat and pose a threat to local species.

The following preventative measures included in this plan may be implemented to mitigate these impacts:

1. Drilling & completion

a. Secure well

b. Secure rig / platform

c. Evacuate personnel

Drilling activities will be conducted in accordance with NTL No.’s 2008

- G09, 2009

- G10 , and

2010

- N10

.

2. Structure Installation Operator will not conduct structure installation operations during Tropical Storm or

Hurricane threat.

( E ) ALTERNATIVES

No alternatives to the proposed activities were considered to reduce environmental impacts.

( F ) MITIGATION M E ASURES

No mitigation measures other than those required by regulation will be employed to avoid, diminish, or eliminate potential impacts on environmental resources.

( G ) CONSULTATION

No agencies or persons were consulted regarding potential impacts assoc iated with the proposed activities. Therefore, a list of such entities has not been provided.

(H) PREPARER(S)

Jami Christley J. Connor Consulting, Inc. 16225 Park Ten Place, Suite 700
Houston, TX 77084 (281) 578

- 3388 jami.christley @jccteam.com

### ( I ) REFERENCES

Authors:

American Pe troleum Institute (API). 1989. Eff ects of offshore petroleum operations on cold

water marine mammals: a literature review. Washington, DC: American Petroleum Institute. 385 pp.

Balazs, G.H. 1985. Impact of ocean debris on ma rine turtles: entanglement and ingestion. In:

Shomur a, R.S. and H.O. Yoshida, eds. Proceedin gs, Workshop on the Fate and Impact of Marine Debris, 26

- 29 November 1 984, Honolulu, HI. U.S. Dept. of C ommerce. NOAA

Tech. Memo. NOAA

- TM

- NMFS

- SWFC

- 54. Pp 387

- 429.

Bu rke, C.J. and J.A. Veil. 1995. Potential benefits from regulatory consideration of synthetic drilling muds. Environmental Assessment Division, Argonne National Laboratory,

ANL/EAD/TM

- 43

.

Daly, J.M. 1997. Controlling the discharge of synthetic

- bas ed drilling fluid contaminated cuttings in waters of the United States. U.S. Environmental Prote ction Agency, Office of

Water. Work Plan, June 24, 1997.

Hansen, D.J. 198l. The relative sensitivity of seabird populations in Alaska to oil pollution. U.S.

D ept. of the Interior, Bureau of Land Management, Alaska OCS Region, Anchorage. BLM

YK

- ES

- 81

- 006

- 1792.

Laist, D.W. 1997. Impacts of marine debris: entanglement of marine life in marine debris including a comprehensive lis t of species with entanglement an d ingestion records. In: Coe,

J.M. and D.B . Rogers, eds. Marine debris: sources, impacts, and solutions. New York, NY : Springer

- Verlag. Pp. 99

- 139

.

Majors, A.P. and A.C. Myrick, Jr. 1990. Effects of noise on animals: implications for dolphins exposed to seal bombs in the eastern tropical Pacific purse

- seine fishery

– an annotated bibliography. NOAA Administrative Report LJ

- 90

- 06.

Marine Mammal Commission. 1999. Annual report to Congress

– 1998

.

Piatt, J.F., C.J. Lensink, W. Butler, M. Kendziore k, and D.R. Nysewander. 1990. Immediate impact of the Exxon Valdez oil spill on marine birds. The Auk. 107 (2): 387

- 397

Vauk , G., E. Hartwig, B. Reineking, and E. Vauk

- Hentzelt. 1989. Losses of seabirds by oil pollution at the German North Sea coast. Topics in Marine Biology. Ros, J.D, ed. Scient. Mar. 53 (2

- 3): 749

- 754

.

Vermeer, K. and R. Vermeer, 1975 Oil threat to birds on the Canadian west coast. The Canadian

Field

- Naturalist. 89:278

- 298.

### Although not cited, the following were utilized in prepa ring this EIA:

 Hazard Surveys

 BOEM EIS’s:

o GOM Deepwater Operations and Activities. Environmental Assessment. BOEM 2000

- 001

o GOM Central and Western Planning Areas Sales 166 and 168 Final Environmental Impa ct Statement. BOEM 96

- 0058

.

### Freeport

- McMoRan Oil & Gas LLC Section 16

– Pg. 31 of 31 Supplemental Exploration Plan July

, 2014 Mississippi Canyon Blocks 126/127 (OCS

- G 18194/19925 ) 

## SECTION 16

ADMINISTRATIVE INFORMATION

16.1 EXEMPTED INFORMATION DESCRIPTION
The proposed bottom

- hole locations of the planned wells have been removed from the Public Information copy of this EP as well as any discussions of the target objectives,
geologic or geophysical data, and any interpreted geology.

16.2 BIBLIOGRAPHY

1. C&C Technologies Survey Services. Archaeological Assessment Report “Horn Mountain” Prospect Blocks 82 (OCS

- G

- 24044), 126 (OCS

- G

- 18194) and 127 (OCS

- G

- 19925) Mississippi Canyon Area Aug ust, 2013, C&C Project #130271.

2. Geoscience Earth & Marine Services, Inc. Geological and Stratigraphic Assessment Blocks 82, 126, and 127 Mississippi Canyon Area Gulf of Mexico, Project No. 0413

- 223 5, September 24, 2013.

3. Geoscience Earth & Marine Services, Inc. Site Clearanc e Letters Proposed

Wellsit es A

- C Block 127 (OCS

- G 19925) Mississippi Canyon Area Gulf of Mexico, Project No. 0413

- 2235, November 15, 2013.

4. Geoscience Earth & Marine Services, Inc. Site Clearanc e Letter Proposed

Wellsit e D Block 126 (OCS

- G 18194 ) Mississippi Canyon Area Gulf of Mexico, Project No. 0 514

- 2387

, June 11, 2014

. 5. Initial Development Operations Coordination Document (Control Number N

7195).

6. Initial Exploration Plan (Control Number N

- 6208).