### UNITED STATES GOVERNMENT MEMORANDUM

To: Public Information (MS 5030)

Plans Section, Office of Field Operations (MS 5231)

Public Information copy of DOCD

Control # - S-07690

Type - Supplemental Development Operations Coordinations Document

Lease(s) - OCS-G16765 Block - 610 Green Canyon Area OCS-G20085 Block - 654 Green Canyon Area

Operator - BHP Billiton Petroleum (GOM) Inc.

Wells H-I & H-It

Drillship

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.

Ronald O'Connor

Plan Coordinator

G20085/GC/654
G20085/GC/654 1173 FSL, 518 FWL

1182 FSL, 478 FWL G16765/GC/610
G16765/GC/610 WELL/H-I
WELL/H-IT Botm Lse/Area/Blk Surface Location Surf Lse/Area/Blk Site Type/Name Description -

Rig Type - Subject: From: November 18, 2014

# bhpbillito n

BH P Billito n Petroleu m (GOM ) Inc

. 136 0 Pos t Oa k

Boulevar d Suit e 15 0

Housto n Texa s 77056-302 0 US A

Te l 71 3 96 1 850 0 Fa

x 71 3 49 9 599 4
www,bhpbilliton.co m

Jul y 11

, 201 4

Amended

- August 20, September

08, September

24 - Final Version - October

08, 2014

Ms

. An n Glazne r

Deput y Regiona l Superviso r fo r Leasin g an d Plan s
U.S

. Departmen t o f thi e Interio r

Burea u o f Ocea n Energ y Managemen t

120 1 Elmwoo d Par k

Boulevar d

Ne w Orleans

, L A 70123-239 4

ATTN : Plan s Uni t

RE : Supplementa l Uni t Developmen t Operation s Coordinatio n Documen t (DOCD )

Gree n Canyo n 65 4 Uni t (Agreemen t No

. 754307012 )

Leas e OCS- G 1676 5 an d 2008 5

Gree n Canyo n Area

, Block s 61 0 an d 65 4

OC S Federa l Waters

, Gul f o f Mexico

, Offshore

, Louisian a

Gentlemen :

I n accordanc e wit h th e provision s o f Titl e 3 0 CFR

, Part s 25 0 an d 550

, Subpar t B an d furthe r define d i n

Notic e t o Lessee s (NTL ) 2009-G2 7 an d 2008-G0 4 (extende d b y NT L 2014-G03)

, clarifyin g th e
Informatio n requirement s fo r Exploratio n Plan s an d Developmen t Operation s Coordinatio n Document s o n

th e OCS

, BH P Billito n Petroleu m (GOM ) Inc

. (herei n referre d t o a s 'BHPB' ) hereb y submit s fo r you r

revie w an d approva l a Supplementa l DOC D fo r th e abov e reference d Unit

.

Enclose d ar e tw o (2 ) har d copie s (On e fo r Publi c Informatio n an d On e fo r Proprietar y Data ) wit h on e (1 )

C D fo r each

. Th e Stat e o f Louisian a CZ M doe s no t requir e a revie w a t thi s time

.

Unde r thi s Supplementa l DOC D BHP B propose s t o supplemen t th e Initia l DOC D Pla n No

. N-900 1 b y

drillin g on e (1 ) additiona l well

, installin g associate d jumper s an d commencin g productio n i n th e abov e

reference d Unit

.

BHP B anticipate s commencin g drillin g operation s o n Apri l 01

, 2015

.

Shoul d additiona l informatio n b e required

, pleas e contac t th e undersigne d a t 713.599.6349

. Pleas e

forwar d al l approva l document s t o susan.wilson@bhpbilliton.com

.

Sincerel y

Susa n Wilso n
Senio r Regulator y Specialis t

SW:K C

Enclosure s

# BHP BILLITON PETROLEUM (GOM), INC.

Record of Changes
Supplemental DOCD (S- 7690 )

GC 610 and 6 54

Date of Submittal /

Amendments Page Number Amended or Added (per pdf page numbering) Brief Synopsis

08/20/2014 Blowout Scenario (Page 14) • Added discussion of well not bridging over.

• Added cumulative discharge after 90 days.

Exempted Information Description (Page 50) Added Mineral and Resource

Conservation Information

Attachment A

– Plan Information Form (Public & Proprietary
– Page 51) Corrected referenced C&A Plan Control

Number

TOC

– Contents of Plan (Public Copy) Pay.Gov Attachment has been added to Public Copy

09/08/2014 Provided to BOEM an electronic copy of the AQ spreadsheet

calculations Requested by BOEM

P rovide d a copy of the engine

manufacturer documentation of the

NOx emission factor used in the drillship emission calculations Requested by BOEM

09/24/2014 Blowout Scenario (Page 14) • Added discussion of well bridging over.

• Added cumulative discharge

after 100 da ys.

Attachment A

– Plan Information Form (Public & Proprietary
– Page 51) Corrected the volume from uncontrolled

blowout

# TABLE OF CONTENTS

SECTION 1:

CONTENTS OF PLAN

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

Plan Information Form

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

Ba thymetry Map and Location Plat

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

Safety and Pollution Prevention Features

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

Storag e Tanks and Production Vessels

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

Service Fees

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

Pollution Prevention Measures to Prevent Discharge of Oils and Greases during Rainfall and
Routine Operations

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

Safety, Pollution Prevention and Early Spill Detection Measures

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



## SECTION 2:

GENERAL INFORMATION

........................................................................................................... 6

Applications and Permits

........................................................................................................... 6

Drilling Fluids

............................................................................................................................ 6

Peak Production Rates / Life of Reserves

................................................................................. 6

Oil Cha racteristics

..................................................................................................................... 6

New or Unusual Technology

..................................................................................................... 7

Bonding Information

.................................................................................................................. 7

Oil Spill Financial Responsibility (OSFR)

................................................................................... 8

Dee pwater Well Control Statement

.......................................................................................... 8

Suspensions of Production

........................................................................................................ 8

Blowout Scenario

..................................................................................................................... 8

Chemical Products

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



## SECTION 3:

GEOLOGICAL AND GEOPHYSICAL INF ORMATION

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

Geological Description

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

Structure Contour Maps

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

Interpreted 2

- D or 3

- D Seismic Lines

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

Geological Structure Cross

- Sections

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

Shallow Hazards Report

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

Site Specific Shallow Hazards Assessment

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

High Resolution Seismic Lines

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

Str atigraphic Column

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

### Time Versus Depth Table

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

Geochemical Information

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

Future G&G Activities

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



## SECTION 4:

HYDROGEN SULFIDE INFORMATION

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

Concentration

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

Classification Request

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

Contingency Plan

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

Modeling Report

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



## SECTION 5:

MINERAL AND RESOURCE CONVERSATION INFORMATION

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

Technology and Reservoir Engineering Practices and Procedures

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

Technology and Recovery Practices and Procedures

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

Reservoir Development

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



## SECTION 6:
BIOLOGICAL, PHYSICAL AND SOCIOECONOMIC INFORMATION

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

Chemos ynthetic Communities Report

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

Topographic Features Map

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

Topographic Features Statement

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

Live Bottom (Pinnacle Trend) Map

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

Live Bottom (Low Relief) Map

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

Potentially Sensitive Biological Features

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

ROV Monitoring Survey Plan

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

Threatened and Endangered Species Information

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

Archaeological Report

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

Air and Water Quality Information

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

Socioeconomic Information

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



## SECTION 7:

WASTE AND DISCHARGE INFORMATION

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

Projected Generated Wastes

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

Projected Ocean Discharges

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

Modeling Report

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

NPDES Permits

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

Cooling Water Intakes

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

## SECTION 8:

AIR EMISSIONS INFORMATION

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

Screening Checklist

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

Summary Table (s) o f Plan Emissions

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



## SECTION 9:

OIL SPILL INFORMATION

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

Site Specific OSRP

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

Regional or Sub

- Regional OSRP Information

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

Spill Response Sites

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

OSRO Information

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

Worst Case Scenario Determination

....................................................................................... 22

NTL 2010

- NO6 - WCD Calculations Overview

......................................................................... 22

Oil Spill Response Discussion / NEPA Analysis

...................................................................... 22

Modeling Report

...................................................................................................................... 22



## SECTION 10:

ENVIRONMENTAL MONITORING INFORMATION

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

Monitori ng Systems

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

Incidental Takes

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

Flower Garden Banks National Marine Sanctuary

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



## SECTION 11:

LEASE STIPULATIONS INFORMATION

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



## SECTION 12:

ENVIRONMENTAL MITIGATION MEASURES INFORMATION

................................................ 25

Impacts to Marine & Coastal Environments & Habitats, Biota, an d Threatened & Endangered
Species

.................................................................................................................................. 25

Incidental Takes

...................................................................................................................... 25



## SECTION 13:

DECOMMISSIONING INFORMATION

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



## SECTION 14:

RELATED FACILITIES AND OPERATIONS INFORMATION

................................................... 27

Related OCS Facilities and Operations

.................................................................................. 27

Transportation System

........................................................................................................... 27

Produced Liquid Hydrocar bons Transportation Vessels

......................................................... 27



## SECTION 15:

SUPPORT VESSELS AND AIRCRAFT INFORMATION

........................................................... 28

General

................................................................................................................................... 28

Diesel Oil Supply Vessels

...................................................................................................... 28

### Drilling Fluids Transportation

.................................................................................................. 28

Solid and Liquid Wastes Transportation

.................................................................................. 28

Vicinity Map

............................................................................................................................ 29



## SECTION 16:

ONSHORE SUPPORT FACI LITIES INFORMATION

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

General

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

Support Base Construction or Expansion

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

Support Base Construction or Expansion Timetable

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

Air Emissions

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

Unusual Solid and Liquid Wastes

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

Waste Disposal

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



## SECTION 17:

SULPHUR OPERATIONS INFORMATION

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



## SECTIO N 18:
COASTAL ZONE MANAGEMENT ACT (CZMA) INFORMATION

............................................. 32

Consistency Certification

........................................................................................................ 32

Other Information

.................................................................................................................... 32



## SECTION 19:
ENVIRONMENTAL IMPACT ANALYSIS (EIA)

.......................................................................... 33

Impact Producing Factors (IPFs) from the Proposed Activities

............................................... 33

Analysis

.................................................................................................................................. 34

Environmental Haza rds

.......................................................................................................... 41

Alternatives

............................................................................................................................. 42

Mitigation Measures

............................................................................................................... 42

Consultation

........................................................................................................................... 42

Preparer(s)

............................................................................................................................. 42

References

............................................................................................................................. 42



## SECTION 20:

ADMINISTRATIVE INFORMATION

........................................................................................... 44

Exempted Information Description (Public Information Copies Only)

...................................... 44

Bibliography

........................................................................................................................... 44

# Plan Attachments

Attachmen t A Plan Information Form s
Attachment B Well Location Map s Attachment C Bathymetry Map

Attachment D Pay.gov Service Fee

Attachment E (Proprietary Data)

Attachment F (Proprietary Data)

Attachment G (Proprietary Data)

Attachment H Solid and Liquid Wastes Transportation

Attachment I Air Emissions

Attachment J NEPA / Oil Spill Response Discussion

Attachment K Subsea Tree Drawing

Attachment L Vicini ty Map

Attachment M Worst Case DischargeBHP Billiton Petroleum (GOM) Inc. 1 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## Supplemental Unit Development Operations Coordination Document (DOCD)

For Green Canyon 654 Unit, Agreement No. 754307012

Block s 610 and 654

Lease s OCS

- G 16765 and 20085

Offshore Louisiana

**SECTION 1 -**  **CONTENTS OF PLAN**

Under this Supplemental DOCD BHP B illiton Petroleum (GOM) Inc. (herein referred to as BHPB) is submitting the following information as a Supplement to the Initial DOCD (Control No. N

- 9001) granted to BHPB on September 18, 2007.

The following is a history of the wells approved under the Initial Plan N

- 9001 and Supplemental Plans S

7446, S

- 7487, S

- 7573

, S- 7616 , S

- 7667, S

- 7672 and S

- 7678 :

Initial DOCD – Plan N

- 9001 – approved September 18, 2007

Well Name Complete Date Production Start

Date Status

B1

- 1 9/26/2011 9/30/2011 Producing

B1

- 2 1 2/31/2001 3/23/2009 Producing

B1

- 3 See Status 09/13/2009 Re

- named / drilled as SC102

B2

- 1 05/26/2011 05/30/2011 Producing

B2

- 3 7/6/2009 09/08/2009 Producing

C1

- 3 See Status See Status See Plan S

- 7487

C1

- 4 11/1/2008 07/13/2009 Producing

G1

- 1 1/29/2008 03/26/2009 Producing

G1

- 2 4/12/2008 03/30/2009 Producing

G1

- 3 12/19/2008 04/06/2009 Producing

G1

- 4 9/18/2009 09/28/2009 Producing

G2

- 3 See Status 04/08/2009 Re

- named / drilled as SB202

G2

- 4 See Status 03/27/2009 Re

- named / drilled as SB204

Suppleme ntal DOCD – Plan S- 7446 – approved February 3, 2011

Well Name Complete Date Production Start

Date Status

WI001 6/8/2011 05/08/2012 Injecting

WI002 8/9/2012 9/9/2012 Injecting

WI003 8/12/2013 10/18/2013 Injecting

Supplemental DOCD – Plan S- 7487 – appr oved November 17, 2011

Well Name Complete Date Production Start

Date Status

SC103 05/29/2013 01/20/2014 Producing

SH101 06/08/2012 06/12/2012 Producing

SH102 11/15/2013 11/24/2013 Producing

SH103 See Status See Status Not drilled yet

SH103 ST01 See S tatus See Status Not drilled yet

SH103 ST01 See Status See Status Not drilled yet

SH104 See Status See Status Not drilled yet

Supplemental DOCD – Plan S

- 7573 – approved November 11, 2012

Well Name Complete Date Production Start

Date Status

WI

- A (WI0 04) 3/27/2013 3/30/2013 Injecting

WI

- B See Status See Status Not drilled yetBHP Billiton Petroleum (GOM) Inc. 2 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 Supplemental DOCD – Plan S

- 7616 – approved November 20, 2013

Well Name Complete Date Production Start

Date Status

SB103 04/04/2014 05/11/2014 Producing

SB104 See Status Se e Status CRL on location

Supplemental DOCD – Plan S

- 7667 – approved June 23, 2014

Well Name Complete Date Production Start

Date Status

WI

- C thru WI -J Pending Pending Pending

Supplemental DOCD – Plan S

- 76 72 (In Review)

Well Name Complete Date Product ion Start

Date Status

H

- A

H-B

H- FGt

H-H

C-A

C

- Alt Pending Pending Pending

Supplemental DOCD – Plan S

- 7678 (In Review)

Well Name Complete Date Production Start

Date Status

WI

- K thru WI -O Pending Pending Pending



### Under this Supplemental DOCD, BHPB proposes the following:

• Drill and complete Subsea Well H

- I to a proposed bottom hole located in Block 654 – the surface will be located adjacent to the existing manifold in Block 610

• Install one (1) jumper from the proposed H

- I / H

- It well to the existing in line sled

• Commence production by August 01, 2015

• NOTE: BHPB is requesting approval for an additional well (to be designated H

- It (Respud)) in the event an issue arises during drilling of the H -I

Pr opo sed

Lo ca tions Bl o ck Lati tud e Long i tud e E as ting

X (f ee t) Nor th ing

Y (f ee t) Bl o ck Calls (f ee t)

H-I (PSL) GC 610 27° 20’ 32.856 ” N 90° 05’ 52.554 ” W 2,582

, 438.31 9,93 2, 853.37 1173 .37 FSL 518.31 F WL

H- It (PSL)

(respud) GC 6 10 27° 20’ 32

. 946 ” N 90° 05’ 52. 997 ” W 2,582

, 398.13 9,93 2,8 61.55 11 81.55 FSL 478.13 FWL



### (a) Plan Information Form

An OCS Plan Information Form (BOEM

- 137) with details of the proposed drilling and completion operations and jumper(s) installation along with BHPB’s tentative schedule leading up to commencement of production is inc luded as Attachment A

.

The proposed well will be drilled with a DP drillship ( Invictus) using subsurface BOPs . There will be no anchors associated with the operations proposed in this Plan.BHP Billiton Petroleum (GOM) Inc. 3 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### (b) B athymetry Map and Location Plat

The Well Location Pla ts along with a Bathymetry Map are included as Attachments B and C

, respectively. The location plats illustrate the existing and proposed surface and bottomhole locations of

the well addressed in this Plan.

BHP Billiton proposes to utilize dynamically

- pos itioned drilling vessels; therefore, there will be no anchors associated with this activity.



### (c) Safety and Pollution Prevention Features

The proposed well addressed in this Plan will be drilled with a DP drillship (Invictus) using subsurface

BOPs

.

Safety features on the MODU will include well control, pollution prevention, welding procedure, and blowout prevention equipment as described in the following Federal Register Notices, Notice to Lessees (NTL) and Subparts located in Title 30 CFR Part 250 and 550:

• Federal Register, Vol. 77, No. 163, August 22, 2012, Final Rule for Increased Safety Measures for Energy Development on the Outer Continental Shelf

• Federal Register, Vol. 75, No. 198, October 14, 2010, Final Rule for Increased Safety Measures for Energy Development on the Outer Continental Shelf

• NTL 2010

- N06 for Information Requirements for Exploration Plans, Development and Production Plans, and Development Operations Coordination Documents on the OCS

• NTL 2010

- N10 for Statement of Compliance with Applicab le Regulations and Evaluation of Information Demonstrating Adequate Spill Response and Well Containment Resources

These regulations may be further clarified by Safety Alerts, and current policy making invoked by the

Bureau of Ocean Energy Management, Regulation and Enforcement ( BOEM ), Environmental Protection Agency (EPA) and the U.S. Coast Guard (USCG).

The appropriate life rafts, life jackets, ring buoys, etc., as prescribed by the U.S. Coast Guard will be

maintained on the MODU at all times.

BSEE i s required to conduct onsite inspections of offshore facilities to confirm operators are complying with lease stipulations, operating regulations, approved plans, and other conditions; as well as to assure safety and pollution prevention requirements are being met. The National Potential Incident of Noncompliance (PINC) List serves as the baseline for these inspections.

BSEE also inspects the stockpiles of equipment listed in the Operator's approved Regional Oil Spill Response Plan that would be used for the containment and cleanup of hydrocarbon spills and is further addressed in the “Oil Spill Information” section of this Plan.

In accordance with Title 30 CFR 250.1501, the goal of our training program is safe and clean OCS operations. To accomplish this, BHPB ensures that our employees and contractor personnel engaged in well control understand and can properly perform their duties.

Supervisory and certain designated personnel on

- board the facility are to be familiar with the effluent limitations and guidelines for overboard discharges into the receiving waters, as outlined in the EPA’s NPDES General Permit GMG290000. Some of these pollution prevention measures include installation of curbs, gutters, drip pans, and drains on drilling deck areas to collect all contaminants and debris.

All discharges related to the operations proposed in this Plan are covered under EPA’s NPDES General

Permit referenced above.BHP Billiton Petroleum (GOM) Inc. 4 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### (d) S torage Tanks and Production Vessels

Tanks with a capacity of 25 bbls or more of oil as defined at 30 CFR 254.6 are listed below:

Type of Storage

Tank Type of Facility Tank Capacity (bbls) Number of

Tanks Total Capacity (bbls) Fluid Gravity (API)

Lube Oil Tank P / S Drillship – Invictus 371; 123; 183; 164 4 842 29

- 39 o

Dirty Oil Tank Dri llship – Invictus 48; 658; 243 3 949 29

- 39 o

Diesel Oil Drillship – Invictus 14,960; 14,268(2); 1,336; 1,413(2); 1,336; 1,145(2) 9 51,285 30 - 45 o

Base Oil Drillship – Invictus 5,058; 398 2 5,455 45 o



### (e) Service Fees

In accordance with 30 CFR 5 50.125(a) B HPB has used the following table showing the fees that must be paid to BOEM for the activity proposed in this Plan. The fees will be adjusted periodically according to the Implicit Price Deflator for Gross Domestic Product by publication of a document in the Federal Register. If a significant adjustment is needed to arrive at the new actual cost for any reason other than inflation, then a proposed rule containing the new fees will be published in the Federal Register for

comment.
Service Fee Table

Servi ce — processing of the following: Fee amount 30 CFR citation

Supplemental Development Operations Coordination Document (DOCD) $ 4,238 per well §550.241(e)



### A copy of the receipt for payment of the above referenced fee(s) accompanies the submission of this

document as Attachment D . It is our understanding that once a fee is paid, it is nonrefundable, even if an application or other request is withdrawn. If our application is returned as incomplete, we are not required to submit a new fee if and when we submit an amended application.



### (f) Pollution Prevention Measures to Prevent the Discharge of Oils and Greases during Rainfall and Routine Operations

Supervisory and certain designated personnel on

- board the MODU and / or the facility are to be familiar

with the effluent limitations and guidelines for overboard discharges into the receiving waters, as outlined

in EPA’s NPDES General Permit GMG290000.

Some of these pollution prevention measures include installation of curbs, gutters, drip pans, and drains to collect all contaminants and debris to prevent the discharge of oils and greases from drilling rigs or platforms during rainfall and routine operations.

BHPB will utilize the best management practices available for ensuring all operations are performed in a

safe and workmanlike conduct in accordance with 30 CFR 250.107 and will ensure that our employees and contractor personnel engaged in our offshore drilling operations understand the state and federal regulations.

All discharges related to the operations proposed in this Plan are covered under EPA’s NPDES General Permit referenced above. BHPB’s permit number is GMG290184.BHP Billiton Petroleum (GOM) Inc. 5 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### (g) Safety, Pollution Prevention, and Early Spill Detection Measures

In accordance with the provisions of Title 30 CFR Parts 254.2(b), 254.23, 254.24, 254.25 and 254.26(d) and as further defined by Notice to Lessees (NTL) 2010

- N10, BHPB submitted for review and BOEM has accepted a proposed Containment Plan which outlines the response to a complete loss of well control. BHPB is a member of the Marine Well Containment Company (MWCC). At this time, MWCC is the containment response system of choice for BHPB’s exploration project.

These are also addressed above in Sections (c) and (f)

.BHP Billiton Petroleum (GOM) Inc. 6 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 2 **- GENERAL INFORMATION** 

(a) A pplications and Perm its

Application / Permit Issuing Agency Status

APD BSEE District To be submitted via eWell

Supplemental DWOP BSEE Region In preparation

Lease Term Pipelines BSEE Region In preparation

Surface Safety System

Modification BSEE District In preparation

No tice of Intent to Discharge EPA Region 4 In preparation

Modification to Surface Commingle / Measurement BSEE Region In preparation



### (b) D rilling Fluids

(1) The following table provides information on the types and amounts of the drilling fluids BHPB plan s to use during drill ing operations.

Type of Drilling Fluid Estimated Volume of Drilling Fluid to be Used

Water

- based (SW, FW, Barite) 21,508 BBLS

Oil

- based (diesel, mineral oil) NA
Synthetic

- based (internal olefin, ester, etc) 3,742 BBLS



### (i) Since BHPB d oes NOT intend to use oil

- based drilling fluid (as shown above) then the table of major components is not required at this time.

(ii) Material Safety Data Sheet s (MSDS) are not required at this time

.



### (c) Peak Production Rates / Life of Reserves

Well H -I: **PROPRIETARY DATA**

Type Average Production Rate Peak Production Rate Life of Reservoir



### (d) Oil Characteristics

The following two tables provide the chemical and physical characteristics of the oils (see definition under 30 CFR § 254.6) that will be produced, handled, transported, or stored. The first table summarizes the range of properties that have been seen in the Shenzi wells tested to date and should be a good representation of the produced fluid. The second table was taken from a representative well.BHP Billiton Petroleum (GOM) Inc. 7 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 Characteristic Units Value Range Analytical Methodologies

Gravity (API° at 60 °F) 27 – 32 ASTM D

- 4052

Flash Point not tested

Pour Point (°F) (- 30) - (- 6) ASTM D

- 97

Kinematic Viscosity (Cst at 100 oF) 10 – 21 ASTM D 445

Wax Content (wt %) 2.8 - 6.8 UOP

- 46

Asphaltene Content (wt %) 2.1 - 8.5 IP 143

- 84

Resin Content (wt %) 10 – 19 IFP 9305

Sulphur (wt %) 1 – 2.6 ASTM D

- 5453



### The following table is the Simulated Distillation by Gas Chromatography, ASTM - D 2887 and the analysis is from a sample at 24,560' MD in Shenzi

- 2 ST2.

Percent Recovery 90%

Percent Off (°F)

IBP 160

5 233

10 313

15 380

20 441

25 500

30 544

35 587

40 634

45 682

50 737

55 791

60 850

65 913

70 981

75 1059

80 1148

85 1247

90 1346

95 1355



### (e) N ew or Unusual Technology

BHPB does not propose the use of any new or unusual technology in the development activities proposed under this plan.



### (f) B onding Information

The bond requirements for the activities and facilities proposed in this Supplemental Plan are satisfied by

an area

- wide bond furnished and maintained according to 30 CFR Part 256, Subpart I; NTL No. 2000

- G16, “Guidelines for General Lease Surety Bonds”; and National NTL No. 2008

- N07, “Supplemental

Bond Procedures”.BHP Billiton Petroleum (GOM) Inc. 8 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### ( g) O il Spill Financial Responsibility (OSFR)

BHPB ( BOEM Operator No. 02010) has demonstrated oil spill financial responsibility for the facilities proposed in this Supplemental Plan 30 CFR Part 253, and NTL No. 2008

- N05, “Guidelines for Oil Spill

Financia l Responsibility for Covered Facilities”.



### (h) D eepwater Well Control Statement

BHPB ( BOEM Operator No. 02010) has the financial capability to drill a relief well and conduct other emergency well control operations.



### (i) Suspensions of Production

At this time there are no approved or anticipated suspensions of production needed to hold the leases or

unit involved with our DOCD.



### (j) Blowout Scenario

The proposed well will penetrate the objective, hydrocarbon bearing sands with a 12

- 1/4” x 14” drilling

ass embly below the 13

- 5/8” x 14” intermediate casing string. It is assumed that a hydrocarbon influx is taken while tripping out of the hole, and subsequently an uncontrolled influx occurs during which the BOPs fail to function as designed and subsequently the marine riser fails. While the worst case (i.e., the well does not bridge over) result is a sustained uncontrolled blowout at the sea floor, the well may bridge

over with time due to the unsupported 14” open hole. The well may continue to flow until it is capped by subsea containment devices, killed via a relief well, or naturally bridges over.

The calculated WCD volume for Shenzi is 131,116 STB oil/day. The estimated cumulative discharge volume after 100 days is 13.11 MMSTB oil.



### Relief Rig Availabili ty BHPB has a Master Service Agreement (MSA) with Transocean Ltd. that will allow access to the multiple rigs of opportunity operating in the Gulf of Mexico.

The rigs listed below are currently contracted in GOM:

Rig Name Contractor Contractor Rated Wat er Depth (ft) MODU Type Rig Status

Discoverer Americas Transocean 12,000 DP Drill Ship Contracted GOM

C.R. Luigs Transocean 10,000 DP Drill Ship Contracted GOM

Discoverer Deep Seas Transocean 10,000 DP Drill Ship Contracted GOM

Ensco 8500 ENSCO 8,500 D P Semisubmersible Contracted GOM

Ensco 8501 ENSCO 8,500 DP Semisubmersible Contracted GOM

Ensco 8502 ENSCO 8,500 DP Semisubmersible Contracted GOM

West Sirius Seadrill 10,000 DP Semisubmersible Contracted GOM

Maersk Developer Maersk 10,000 DP Semisubme rsible Contracted GOM

Danny Adkins Noble 12,000 DP Semisubmersible Contracted GOM



## Rev. 1

– 08/20/2014

Rev. 2

– 09/24/2014BHP Billiton Petroleum (GOM) Inc. 9 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### Relief Rig Package Constraints No constraints have been identified. Any of the above listed MODUs are capable of drilling a relief well in the covered development area. Furthermore, BHP Billiton actively maintains operational agreements with multiple stimulation vessel providers in the GOM which are configured for high rate and pressure pumping operations required in dynamic kill operations.



### Relief Rig Timing (Con tract) and Rig Mobilization A reasonable estimate of 7 to 10 days will be required for the above listed or similar MODUs to safely suspend ongoing operations and arrive at the relief well location. Upon arrival at relief well location approximately 90 days will be required to drill the relief well and perform kill operations.



### Location & Strategy of Relief Well
The proposed well is located approximately 116 statute miles off the coast of Louisiana, a relief well from an onshore location is not an option.

There are no structures in the vicinity of this project to use for relief well drilling operations.



### Summary of Prevention Measures BHPB maintains and adheres to an ISO 14001 / OSHAS 18001 Conformance Certified Management System which includes Well Control, Well Integrity [including barrier analyses], and Well Design Standards which have been updated to include the initial learning’s from the Deepwater Horizon incident. BHPB have established procedures for performing drilling operations that are continually updated and designed to be “fit for purpose” to ensure each well is planned to prevent a well control scenario:

• BHPB employs an industry leading expert to provide initial pore pressure and fracture gradient predictions. Having this expertise and knowle dge in

- house allows for the successful planning of a

well to minimize the chances of a blowout.

• Well hazard assessments are performed on every well focusing particularly on well integrity, well control and emergency response arrangements.

• A well risk assessment is conducted as part of the well planning process, and a risk register is completed and documented in the drilling program addressing each of the risks.

• If while drilling a well, situations change such that the original drilling program requires to b e amended, a Management of Change is issued, and if necessary, a barrier analysis is conducted. The Management of Change form is signed off by management and issued to operations personnel for implementation.

• BHPB Senior Leadership personnel are actively engaged in daily rig operations.

• BHPB employs experienced and trained Field Operations Personnel.

• BHPB conducts periodic well control audits of our contracted drilling rigs by both BHPB drilling management and independent third party (well examiner) audito rs.



### Reduce the Likelihood of a Blowout
Real time pressure and well data is monitored from the BHPB Houston office during drilling operations. This includes utilizing Gamma Ray and Resistivity LWD and in certain cases formation pressure while drilling too ls.

The following BHPB policies directly reduce the likelihood of a blowout:

• Liners will be run across hydrocarbon bearing formations.

• No auto

- fill float equipment will be run when hydrocarbon zones are exposed.

• No surface fluid transfers to occur while displacing to a less dense fluid.

• All displacements to less dense fluids will be performed on a closed system where fluid volumes can be closely and accurately monitored.

A well control drill matrix is maintained on the rig as per 30 CFR 250 Subpart O.

The BOP stacks on the Invictus rig are six (6) ram stacks configured to provide enhanced well control and emergency response capability, including dual blind shear rams, casing shear rams, and three variableBHP Billiton Petroleum (GOM) Inc. 10 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### bore pipe rams. Procedures pertinent to these BOP configurations are well established and familiar to the drillers, tool pushers, and BHPB Drilling Supervisors. 

### Likelihood for Surface Intervention to Stop the Blowout

The likelihood for surface intervention to stop the blowout is high.

The 13

- 5/8” int ermediate long string will design for a full column of oil to the mudline. As a result, it would be possible to install a containment device (such as a capping stack) which would subsequently allow for the blowout to be stopped.

BHPB has standardized the BOP wellhead connector for the Invictus, to ensure that the rig is capable of latching onto an existing BHPB wellhead.



### Plans for Effective and Early Intervention

The Invictus, contracted by BHPB

, ha s a Deadman / Autoshear which will function in the event of a LMRP disconnect or a loss of both hydraulic pressure and electrical communication with the BOP control system

on surface.

“Surface” deployment of ROVs to close any open BOPs which could affect well closure:

• The ROV panel will be tested subsea with the BOP on a wellhead.

• BHPB has upgraded the pump skid on the rigs ROV ’s with a more powerful pump capable of producing higher flow rates. Additionally, the receptacles have been changed to allow for more flow rate to reduce closing times.

• BHPB has designed, built, tested and deployed dedicated subsea accumulator banks to the seafloor to further improve the ROV closure response times.

BHPB is a member of the Marine Well Containment Company (MWCC) group, which maintains capping and well control equipment f or its member companies.



### Relief Well Arrangements

Suitable surface locations for a relief well would fall within the stand

- off zone defined by a 5000’ radius

with its center at the proposed surface location. Shallow hazards analysis indicates favorable relief well locations within this area provided that existing infrastructure, localized areas of steep seafloor slope, and scattered gas anomalies are avoided.

The well design should reflect the original well, depending on the root cause of the blowout.



### Other Measures Taken

Prior to drilling BHBP will have readily available all of the materials and equipment needed to spud, drill,

case and cement a relief well.

BHPB has established commercial relationships with those suppliers of contingency equipment and services that we have identified as necessary to kill a blown out well.



### (k) Chemical Products

This information is not required for the activities proposed in this plan in the BOEM GOMR.BHP Billiton Petroleum (GOM) Inc. 11 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 3 **- GEOLOGICAL AND GEOPHYSICAL INFORMATION** 

In accordance with 43 CFR, Part 2, Appendix B, those items considered proprietary have been omitted from the Public Information copy and have been referenced accordingly.



### (a) G eological Description

**PROPRIETARY DATA**BHP Billiton Petroleum (GOM) Inc. 12 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### (b) S tructure Contour Ma ps

**PROPRIETARY DATA**



### (c) I nterpreted 2- D or 3

- D S eismic L ines

**PROPRIETARY DATA**



### (d) G eological S tructure C ross -S ections

**PROPRIETARY DATA**



### (e) S hallow H azards R eport

A Site Specific Shallow Drilling Hazards Report for Drill Center H located in Green Canyon Block 610,

Lease OCS

- G 16765 was prepared by Shawn C. Williamson, P.G. Geohazards Interpreter for BHPB on April 12, 2011.

A copy of this report was submitted to the BOEM for review under S- 07487

. The well (s) proposed in this plan is being d rilled adjacent to existing Drill Center H in GC 610

.



### (f) S ite Specific S hallow H azards A ssessment

The well (s) proposed in this plan is being drilled adjacent to existing Drill Center H in GC 610; a shallow hazards assessment is not required at this ti me.



### (g) H igh R esolution S eismic L ines

The well (s) proposed in this plan is being drilled adjacent to existing Drill Center H in GC 610 ; high resolution seismic lines are not required at this time.



### (h) S tratigraphic C olumn

This information is not required for DOCDs

.



### (i) T ime V ersus D epth T ables

This information is not required for DOCDs

.



### (j ) Geochemical Information

This information is not required for the activities proposed in this plan in the BOEM GOMR.



### (k ) Future G&G Activities

This information is not required for the activities proposed in this plan in the BOEM GOMR.BHP Billiton Petroleum (GOM) Inc. 13 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 4 **- HYDROGEN SULFIDE INFORMATION** 

(a) C oncentration

BHPB does not anticipate encountering H 2 

### S while conducting our proposed development activities.



### (b) C lassifica tion R equest

In accordance with Title 30 CFR 250.490(c), BHPB requests the area of operations in Green Canyon Block 654 (OCS

- G 20085), be classified by the BOEM as an area where the “absence” of hydrogen sulfide has been confirmed based upon the following :

**PROPRIETARY DATA**



### (c) Contingency Plan

BHPB does not anticipate encountering H 2 

### S while conducting our proposed development activities therefore a contingency plan is not required at this time.



### (d) Modeling Repor t

BHPB does not anticipate encounter ing H 2 

### S while conducting our proposed development activities therefore a modeling report is not required at this time.BHP Billiton Petroleum (GOM) Inc. 14 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 5 **- M INERAL AND RESOURCE CONVERSATION INFORMATION** 

(a) Technology and Reservoir Engineering Practices and Procedures

**PROPRIETAR Y DATA** 



### (b) Technology and Recovery Practices and Procedures

**PROPRIETARY DATA**



### (c) Reservoir Development

**PROPRIETARY DATA**BHP Billiton Petroleum (GOM) Inc. 15 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 6 **- BIOLOGICAL, PHYSICAL AND SOCIOECONOMIC INFORMATION** 

(a) C hemosynthetic C ommunities Report

NTL 2009 -G 40, effective January 27, 20 10 , broadened the scope of a chemosynthetic communities report to cover all high

- density deepwater benthic communities (not just high

- density chemosynthetic communities), changed the definition of deepwater from 400 meters (1,312 feet) to 300 meters (984 feet), increased the separation distance from muds and cuttings discharge locations from 1,500 feet to 2,000 feet and provided for an additional 1,000

- foot buffer area beyond maximum anchor areas.

The well (s) proposed in this plan is being drilled adjacent to existing Green Canyon 610 Drill Center H. There will be no new impact(s) to this area. There are no hydrocarbon macro

- seeps or hard bottom areas capable of supporting high

- density benthic communities within 2,000ft of t he existing drill centers

.



### (b) T opographic F eatures M ap

There are no topographic features located on Green Canyon 610

.



### (c) T opographic F eatures S tatement

Since there are no topographic features located on Green Canyon 610 the statement for shunting

described in NTL No. 200 9-G 39 “Biologically Sensitive Underwater Features and Areas” is not required.



### (d) L ive B ottom (P innacle T rend ) M ap

The activities proposed in this plan are not affected by a live bottom (Pinnacle Trend) stipulation attached

to the lease.



### (e) L ive B ottom (L ow R elief ) M ap

The activities proposed in this plan are not affected by a live bottom (low relief) stipulation attached to the

lease.



### (f) Potentially Sensitive Biological Features

BHPB does not propose bottom

- disturbing activities within 61 meters ( 2 00 feet) of potentially sensitive biological features; therefore the map described in NTL No. 2009

- G39 “Biologically Sensitive Underwater

Features and Areas ” is not required.



### (g) ROV M onitoring S urvey P lan

BHPB is familiar with the ROV survey and reporting provisions of NTL 2008

- G06 for “Remotely Operated Vehicles in Deepwater”. The well (s) proposed in this Supplemental Plan is located in Grid 13. Grid 13 has been identified by BOEM as an area with adequate ROV survey covera ge.BHP Billiton Petroleum (GOM) Inc. 16 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### (h) Threatened and Endangered Species Information

Congress passed the Endangered Species Act (ESA) on December 28, 1973, recognizing that the natural heritage of the United States was of “esthetic, ecological, educational, recreational, and scientif ic value to our Nation and its people.” It was understood that, without protection, many of our nation’s living resources would become extinct. The purpose of the ESA is to conserve threatened and endangered species and their ecosystems. There are more than 1,900 species listed under the ESA. A species is considered endangered if it is in danger of extinction throughout all or a significant portion of its range. A species is considered threatened if it is likely to become endangered in the future. The U.S. Fish and Wildlife Service (USFWS) and the National Marine Fisheries Service (NMFS) share responsibility for implementing the ESA. NMFS is responsible for 69 marine species, from whales to sea turtles and salmon to Johnson’s sea grass.

The Marine Mammal Protection Act (MMPA) of 1972 was written to establish American federal responsibility to conserve marine mammals. Some species were in immediate danger of extinction while other populations were becoming severely depleted.

Below is a list of endangered and threated species and critical habitats under the jurisdiction of NOAA

Fisheries Service in the Gulf of Mexico:

Listed Species Scientific Name Status Date Listed

Marine Mammals

Blue Whale Balaenoptera Musculus Endangered 12/02/1970

Finback Whale Ba laenoptera Physalus Endangered 12/02/1970 Humpback Whale Megaptera Novaeangliae Endangered 12/02/1970

Sei Whale Balaenoptera Borealis Endangered 12/02/1970 Sperm Whale Physeter Macrocephalus Endangered 12/02/1970

Turtles

Green Sea Turtle Chelonia Myda s Threatened 1 

### 07/28/1978

Hawksbill Sea Turtle Eretmochelys Imbricata Endangered 06/02/1970 Kemp’s Ridley Sea

Turtle Lepidochelys Kempii Endangered 12/02/1970

Leatherback Sea Turtle Dermochelys Coriacea Endangered 06/02/1970 Loggerhead Sea Turtle Carett a Caretta Threatened 2 

### 09/22/2011

Fish Gulf Sturgeon Acipenser Oxyrinchus Desotoi Threatened 09/30/1991

Smalltooth Sawfish Pristis Pectinata Endangered 04/01/2003

Invertebrates

Elkhorn Coral Acropora Palmata Threatened 05/09/2006 Staghorn Coral Acropo ra Cervicornis Threatened 05/09/2006

1 Green turtles are listed as threatened, except for breeding populations of green turtles in Florida and on the Pacific Coast of Mexico, which are listed as endangered. 2 Northwest Atlantic Ocean (NWA) Distinct Population Segment (DPS) was listed as threatened. NMFS and USFWS issued a final rule changing the listing of loggerhead sea turtles from a single, threatened species to nine DPSs listed as either threatened or endangered in 2012 (76 FR 58868).



### BHP B is awar e of the above referenced federal acts and will ensure that all offshore personnel, including contractors and other support services

- related personnel have an understanding of the need to conserve marine mammals and the conservation of their ecosystems. Several NTL’s were issued to address conservation measures to be taken by offshore operators and contractors.

Further discussions on threatened and endangered species are included in Section 19 (EIA).BHP Billiton Petroleum (GOM) Inc. 17 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### (i) A rchaeological R eport

The Shenzi Field is not located within an area designated to have a high probability for archaeological resources as defined by NTL No. 2005

- G07 and 2011

- JOINT

- G01. However, BHP Billiton is aware of the Bureau of Ocean Energy Management’s (BOEM) March 2011 Pre

- Seabed Disturbance Survey Mitigation and has submitted an archaeological assessment report issued by Geoscience Earth & Marine Services (GEMS) in November 2011. None of the sonar contacts identified in the Shenzi AUV survey area were recommended for archaeological avoidance or investigation.



### (j) Air and Water Quality Information

The State of Florida is not an affected State for the activities proposed in this plan; therefore this information is not required.



### (k) Socioeconomic Information

The State of Florida is not an affected State for the activities proposed in this plan; therefore this information is not required.BHP Billiton Petroleum (GOM) Inc. 18 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 7 **- WASTE AND DISCHARGE INFORMATION** 

(a) Projected Generated Wastes

All projected solid and liquid wastes likely to be generated by our proposed activities are included in

Attachment H (Table 1) . This table includes both operational wastes permitted by the appropriate NPDES permit and any other identified wastes.

BHPB does not plan to treat, store or dispose of any of the above wastes down hole at our proposed drilling location.



### (b) Projected Ocean Discharges

All projected solid and liquid wastes likely to be discharged overboard during our proposed activities are

included in Attachment H (Table 1) . This table includes both operational wastes p ermitted by the appropriate NPDES permit and any other identified wastes.



### (c) Modeling Report

Not required by EPA under the OCS General Permit.



### (d) NPDES Permits

This information is not required for the activities proposed in this plan in the BOEM GO MR.



### (e) Cooling Water Intakes

This information is not required for the activities proposed in this plan in the BOEM GOMR.BHP Billiton Petroleum (GOM) Inc. 19 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 8 **- AIR EMISSIONS INFORMATION** 

(a) Screening Checklist

Included in this section, (if applicable) are the Projected Air E missions Worksheets prepared in

accordance with NTLs 2009

- G27 and 2008

- G04, associated with the new proposed well Location H-I.

Screening Questions for DOCDs Yes No Is any calculated Complex Total (CT) Emission amount (in tons) associated with your propo sed development activities more than 90% of the amounts calculated using the following formulas: CT = 3400D 2/3 for CO, and CT = 33.3D for 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 Does or will the facility complex associated with your proposed development and production activities process production from eight or more wells? X

Do you expect to encounter H 2 S at concentrations g reater than 20 parts per million (ppm)? X Do you propose to flare or vent natural gas in excess of the criteria set forth under 250.1105(a)(2) and (3) X Do you propose to burn produced hydrocarbon liquids? X Are your proposed development and producti on activities located within 25 miles from shore? X Are your proposed development and production activities located within 200 kilometers of the Breton

Wilderness Area? X



### The following information was prepared by Kathy Camp with K. Camp & Associates ( 713.201.9627)

, based upon drilling and completion information provided by BHP Billiton Petroleum Drilling group.



### (b) Summary Table of Plan Emissions

Below are the Total Plan Emissions for the drilling and completion of well Location H -I.

COMPANY AREA BLOCK LEASE PLATFORM WELL

BHP Billiton Pet.

(GOM) Inc. Green Canyon 6 10/654 OCS

- G

16765 /20085 NA H-I ( INVICTUS )

Year Emitted Substance

PM S O x N O x VOC CO

2015 86.22 1.38 2071.18 106.24 734.09

Allowable 3862.80 3862.80 3862.80 3862.80 80869.40



### Detailed s preadsheets are included as Attachment I.



## FINAL – 10/08/2014 (Updated AQ Schedule)BHP Billiton Petroleum (GOM) Inc. 20 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 9 **- OIL SPILL INFORMATION** 

(a) Oil Spill Response Planning

(1) S ite -S pecific OSRP

Lease s OCS -G 16765 and 20085 are not located in the Eastern Gulf of Mexico therefore

a site

- specific OSRP is not required.

(2)(i) R egional or S ub -R egional OSRP I nformation

BHP Billiton Petroleum (GOM) Inc. (Company No. 02010) has an approved Regional OSRP (No. O

- 43).

The calculated WCD for the operations in this Supplemental DOCD does not supersede the Regional OSRP’s WCD.

All the proposed activities and facilities in this Supplemental DOCD will be covered by the Oil Spill Response Plan filed by BHP Billiton Petroleum (GOM) Inc. (Company No. 02010) that was approved on November 21, 2013.

( ii ) S pill R esponse S ites

The location of BHPB’s primary spill response equipment and the planned staging area(s) that would be used should we have an oil spill resulting from the activities proposed in our Supplemental Plan is provided in the table below:

Primary Response Equipment Location Preplanned Staging Location(s)

Port Fourchon or Houma, LA Port Fourchon, LA

( iii) OSRO I nformation

BHPB’s primary equipment provider is Clean Gulf Associates (CGA). Clean Gul f Associates Services, LLC (CGAS) will provide closest available personnel, as well as a CGAS supervisor to operate the equipment.BHP Billiton Petroleum (GOM) Inc. 21 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### (iv) W orst C ase S cenario Determination

*The Regional OSRP calculations and assumptions for blowout during drilling were previously submitted and accepted under Plan S

- 7487.

** The WCD for the Shenzi Field was verified and accepted by BOEM under Plan R

- 5124.

The calculated WCD for this Supplemental DOCD does not supersede the Regional OSRP’s WCD or the

Shenzi WCD as verified in Plan N

- 9001

.

Category Regional

OSRP Supplemental

DOCD Regional

OSRP Supplemental

DOCD Type of Activity Drilling Drilling >10 Miles

Production >10 Miles

Production Facility Location (area/block) GC 610 GC 653 GC 653 GC 653 Facility Designation 2 Well SH103

ST01 WELL SB101 Shenzi TLP Shenzi TLP

Distance to Nearest Shoreline (miles) 120 120 120 120

Volume 3

Storage tanks (total) Flowlines (on facility) Lease term pipelines Uncontrolled blowout (volume per day)

Total Volume NA

NA

NA
255,200

255,200 * NA

NA

NA
131,116

131,116 ** 4,098
8,474

NA
111,084

123,656 4,098
8,474

NA
111,084

123,656 Type of Oil(s) (crude oil, condensate, diesel) Crude Crude Crude Crude API Gravity(s) 4 32.1° 3 2. 1 ° 30° 30°

Footnote s: 1. Types of activities include pipeline, platform, caisson, subsea completion or manifold, and mobile drilling rig. 2. E.g., Well No. 2, Platform JA, Pipeline Segment No. 6373. 3. Take your regional OSRP worst

- case scenario volume from the appropriate section of your regional OSRP. For EP’s, the worst

case scenario volume is the daily volume possible from an uncontrolled blowout. Determine this volume using the provisions of 30 CFR 30 CFR 254.47(b). For DOCDs , determine the volume of your worst

- case scenario using the provisions of 30 CFR 30 CFR 254.47(a) or (b), as appropriate. 4. Provide API gravity of all oils given under “Type of Oil(s)” above. Estimate for EP’s.



### Since BHPB has the capability to respond to the appropriate worst

**- case spill scenario**  **included in its regional OSRP approved on**  **November 21, 2013, and since the worst**

**- case scenario determined**  **for our Supplemental DOCD does not replace the appropriate worst**

**- case scenario in our regional**  **OSRP, I hereby certify that BHPB has the capability to respond, to the maximum extent**  **practicable, to a WCD, or a substantial threat of such a discharge, resulting from the activities proposed in our Supplemental DOCD.** 



### NTL 2010

- N06 – WCD Calculations Overview

The WCD for the Shenzi Field was verified and accepted by BOEM under Plan R

- 5124. BHPB has

included the WCD calculations for Well H -I for information purposes in Attachment M

.



### (b) Oil Spill Response Discussion / NEPA Analysis

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 131,116 barrels of crude oil with an API gravity of 3 2.1 °.

BHPB’s detailed spill response discussion is included as Attachment J

.



### ( c) Modeling Report

A modeling report for a potential oil or hazardous substance spill is not required for the activities proposed in this plan. In the event BHPB proposes to prepare such a report, we would contact the Regional Supervisor of the BOEM GOMR for guidance in preparing the report and the BOEM GOMR would be provided with two copies.BHP Billiton Petroleum (GOM) Inc. 22 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 10 **- ENVIRONMENTAL MONITORING INFORMATION** 

(a) M onitoring S ystems

BHPB is aware of the requirements of NTL No. 2009

- G02 whereby BOEM established and implem ented a program to monitor ocean currents and require operators to share the data for all floating MODU’s and production facilities operating or installed in water depths greater than 400 meters (1,312 feet).

In the event BHPB were to monitor ocean currents during this operation, BHPB will report ocean current data to the National Oceanic and Atmospheric Administration (NOAA) National Data Buoy Center (NDBC) Internet website as required.



### (b) Incidental Takes

BHPB does not believe that protected species may be incidentally taken during the development activities proposed in this plan.



### (c) Flower Garden Banks National Marine Sanctuary

BHPB ’s activity under this Plan is not located within the Protective Zones of the Flower Garden Banks or

Stetson Bank and therefore is not required to monitor the impacts of an oil spill.BHP Billiton Petroleum (GOM) Inc. 23 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 11 **- LEASE STIPULATIONS INFORMATION** 

BOEM did not invoke any lease stipulations for Lease s OCS -G 16765 and 20085 , Green Canyon Block s
610 and 654

.BHP Billiton Petroleum (GOM) Inc. 24 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 12 **- ENVIRONMENTAL MITIGATION MEASURES INFORMATION** 

(a) Impacts to Marine and Coastal Environments and Habitats, Biota, and Threatened and Endangered Species

BOEM and BSEE issue Notices to Lessees (NTLs) which more fully describe measures implemented in support of certain statutes and regulations, as well as measures identified by the U.S. Fish and Wildlife Service and NMFS arising from, among others, conservation recommendations, rulemakings pursuant to the MMPA, or consultation.

BHPB and its 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).

BHPB personnel and contractors will comply with the most current measures to pro tect 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.

BHPB personnel and contractors will be required to comply with the mitigated meas ures, identified in the above referenced NTLs, and additional measures in the conditions of approvals for their plans or permits.



### (b) Incidental Takes

BHPB does not believe that any of the endangered species or marine mammals as listed in the

ESA will be taken during the development activities proposed in this plan.

BHPB understands that the use of explosives or seismic devices may affect marine life in the vicinity. There are no operations proposed in th is plan that will be using explosives or seis mic

instruments.BHP Billiton Petroleum (GOM) Inc. 25 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 13 **- DECOMMISSIONING INFORMATION** 

This information is not required for plans submitted in the BOEM GOMR.BHP Billiton Petroleum (GOM) Inc. 26 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 14 **- RELATED FACILITIES AND OPERATIONS INFORMATION** 

(a) Related OCS Facilities and Operations

A subsea tree will be ins talled on each well with the rig prior to leaving the location ( SST drawing

in Attachment K )

. The well jumper s will be installed with either the rig or an intervention vessel

.

Related OCS facilities and operations were discussed in depth in the Initial U nit DOCD (Plan No.

N- 9001). There are no changes to the host facility under this Plan.

Under this Supplemental Unit DOCD one (1 ) lease term flowline (well jumper) will be installed.

Description of Lease Term Pipelines

Diameter (Inches) From To Length Product Max SI Time

06 GC6 10 / Well H-I GC6 10 / Manifold H 60 ’ Oil 25,000 bopd 45 seconds



### (b) Transportation System

Oil and gas production is exported via existing right

- of

- way pipelines to existing pipeline delivery
syst ems. There will be no changes to the existing field infrastructure under this Supplemental

Plan

.



### (c) Produced Liquid Hydrocarbons Transportation Vessels

There will be no produced liquid Hydrocarbons , including well test fluids, transported by means other than a pipeline for the activities proposed in this plan.BHP Billiton Petroleum (GOM) Inc. 27 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 15 **- SUPPORT VESSELS AND AIRCRAFT INFORMATION** 

(a) G eneral

The following list provides information regarding the vessels and aircraft BHPB will use to support our proposed activities

.

Ty pe of Vessel Maximum Fuel Tank Storage Capacity Maximum No. in Area at Any Time Trip Frequency or Duration during Drilling Trip Frequency or Duration during

Production (See Note Below)

Supply boat(s) 25,000

- 370,000 gals 2 7 times / week 7 times / week

Crew boat(s) 5,000 – 15,000 gals 1 7 times / week 7 times / week

Helicopter 440 gals 1 As needed As needed



### NOTE: Vessel trips during production are the same as previously reported. There will be no additional vessel trips due to the additional production operations.

Type of Vessel Maximum Fuel Tank Storage Capacity (bbls) Maximum No. in Area at Any Time Total Duration

Installation of Risers, Flowlines, Jumpers, Manifolds, etc.

Installation Vessel (Deep

Blue – flowlines, jumpers, umbilicals) 29606 1 4 days

Support vessel

– subsea commissioning 11100 1 4 days



### (b) D iesel Oil S upply V essels

BHPB proposes to use one of the following vessel(s) to supply diesel oil to support the drilling operation

in this Supplemental Plan

.

Size of Fuel Supply

Vessel Capacity of Fuel Supply

Vessel (in bbls) Frequency of Fuel

Transfers Route Fuel Supply Vessel

will Take

280 ft PSV 16800 1 / month From the shorebase in Port Fourchon, LA to the MODU

, then back to shorebase

280 ft PSV 8930 2 / week From the shorebase in Port Fourchon, LA to the MODU,

then back to shorebase



### (c) Drilling Fluids Transportation

The proposed development activities do not affect the State of Florida; therefore information on the projected drilling fluids transportation is not required at th is time.



### (d) S olid and L iquid W astes T ransportation

All projected solid and liquid wastes likely to be transported during our proposed activities are included in

Attachment H (Table 2).BHP Billiton Petroleum (GOM) Inc. 28 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### (e) V icinity M ap

Drill Center H is located approximately 11 6 statute miles from the nearest Louisiana shoreline and approximately 12 0 miles from the onshore support base located in Port Fourchon, LA.

A Vicinity Plat showing the location of the proposed development activities relative to the shoreline and

the onshore base is included as Attachment L

.BHP Billiton Petroleum (GOM) Inc. 29 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 16 **- ONSHORE SUPPORT FACILITIES INFORMATION** 

(a) G eneral

BHPB proposes to utilize the following existing onshore base for support:

Name Location Existing, New or Modified

Chouest Base Port Fourchon, LA Existing



### (1) Support Base Construction or Expansion

The proposed operations do not mandate any immediate measures for land acquisition or expansion of the existing onshore base facilities.



### (2) Support Base Construction or Expansion Timetable

The proposed operations do not mandate any immediate measures for land acquisition or expansion of the existing onshore base facilities therefore a timetable is not required.



### (b) Air Emissions

Information regarding air emissions generated by onshore support facilities is not required to accompany plans submitted in the BOEM GOMR.



### (c) Unusual Solid and Liquid Wastes

Information regarding unusual solid and liquid wastes generated by onshore support facilities is not required to accompany plans submitted in the BOEM GOMR.



### (d) Waste Disposal

All projected solid and liquid wastes likely to be disposed of during and after our proposed activities are

included in Attachment H (Table 2).BHP Billiton Petroleum (GOM) Inc. 30 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 17 **- SULPHUR OPERATIONS INFORMATION** 

BHPB is not proposing to conduct sulphur operations in this plan.BHP Billiton Petroleum (GOM) Inc. 31 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### SECTION 18 **- C OASTAL ZONE MANAGEMENT ACT**  **(CZMA) INFORMATION** 

The States of Texas, Louisiana , Mississippi, Alabama and Florida have federally approved coastal zone management programs (CZMP). Applicants for an OCS plan submitted to the BOEM must provide a certification with necessary data and information for the affected State to determine that the proposed activity(s) complies with the enforceable policies of each States’ approved program, and that such activity

will b e conducted in a manner consistent with the program.



### (a) Consistency Certification

The Coastal Zone Management Consistency Certification fr om the State of Louisiana is not required for

the supplemental development activities proposed in this Supplemental Plan

.



### (b) Other Information

State of Louisiana :

T he enforceable policies of the State of Louisiana have been considered and will be complied with.BHP Billiton Petroleum (GOM) Inc. 32 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 19 **- ENVIRONMENTAL IMPACT ANALYSIS (EIA)** 

(a) And (b) BHPB has placed an “X” in each IPF categ ory that we believe (by using good engineering judgment) would be impacted by the activity proposed in this plan.

Environmental

Resources Impact Producing Factors (IPFs) Categories and Examples

Emissions (air, noise, light, etc.) Effluents (muds, cuttings,

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) O ther IPFs you identify

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) Chemosynthetic communities (4) (4) (4)
Water quality X X X

Fisheries X X X

Marine mammals (8) X X (8) X

Sea turtles (8) X X (8) X
Air quality (9) Shipwreck sites (known or potential) (7)
Prehistoric archaeological sites (7)

Vicinity of Offshore Location

Es sential fish habitat X (6) X
Marine and pelagic birds X X X Public health and safety (5)

Coastal and Onshore

Beaches X (6) X

Wetlands (6) X Shore birds and coastal nesting

birds (6) X Coastal wildlife refuges X

Wilderness areas X

Other Resources You Identify

None

Footnotes 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: (a) 4- mile zone of the Flower Garden Banks, or the 3

- mile zone of Stetson Bank, (b) 1000

- m, 1

- mile or 3

- mile zone of any topographic feature (submarine bank) protected by the Topogr aphic Features Stipulation attached to an OCS lease; (c) Essential Fish Habitat (EFH) criteria of 500 ft from any no

- activity zone; or (d) Proximity 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 400 meters or greater.

5. Exploration or production activities where H 2 S 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 judge 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.BHP Billiton Petroleum (GOM) Inc. 33 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 7. All activities that involve seafloor disturbances, including anchor emplacements, in any OCS block designated by the BOEM as having high

prob ability 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 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.



### (c) ANALYSIS

Site

- specific at Green Canyon Block s 610 and 654



### 1. Designated Topographic Features

The topographic features of the Central Gulf provide habitat for coral reef community organisms. Since 1973 stipulations have been made a part of leases on or near these biotic communities so that impacts from nearby oil and gas activities were mitigated to the greatest extent possible. This stipulation does not prevent the recovery of oil and gas resources, but serves to protect valuable and sensitive biological

resources.

There are no IPF’s (including effluents, physical disturbances to the seafloor and accidents) that could cause impacts from the proposed development activities in Green Canyon Blocks 610 and 654 to topographic features. The site

- specific offshore location of the proposed development activities is not located near a designated topographic feature.

The activities proposed in this plan will be covered by our R egional OSRP.



### 2. P innacle Trend Area Live Bottoms

A small portion of the Central Planning Area and the Eastern Gulf of Mexico OCS planning areas include portions of approximately 70 lease blocks that have been classified as being within the “pinnacle trend” area. The Department of the Interior, Bureau of Ocean Energy Management is the agency with jurisdiction over these leases.

The term “live bottom” is used to refer to the biological assemblages attached to hard substrates found interspersed between sand and mud bottoms of the continental shelf. These assemblages often consist of colorful sponges, corals, sea whips and sea fans rising from the benthic environment. Some of these features have extensive vertical relief rising far into the water column and serving as a reefal habitat for numerous commercially and recreationally important fish species.

A special “Live Bottom (Pinnacle Trend) Stipulation” is assigned to leases in those blocks intended to protect the pinnacle trend and associated hard

- bottom communities from damage and, at the same time, provide for recovery of potential oil and gas resources. This stipulation was not invoked with the issuance

of these leases.

There are no IPF’s (including effluents, physical disturbances to the seafloor, and accidents) from the proposed development activities in Green Canyon Blocks 610 and 654 that could cause impacts to pinnacle trend area live bottoms.

The activities proposed in this plan will be covered by our Regional OSRPBHP Billiton Petroleum (GOM) Inc. 34 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### 3. Eastern Gulf Live Bottoms

A small portion of the Central Planning Area and the Eastern Gulf of Mexico OCS planning areas include portions of approximately 70 lease blocks that have been classified as being within the “pinnacle trend” area. The Department of the Interior, Bureau of Ocean Energy Management is the agency with jurisdiction over these leases.

The term “live bottom” is used to refer to the biological assemblages attached to hard substrates found interspersed between sand and mud bottoms of the continental shelf. These assemblages often consist of colorful sponges, corals, sea whips and sea fans rising from the benthic environment. Some of these features have extensive vertical relief rising far into the water column and serving as a reefal habitat for numerous commercially and recreationally important fish species.

A special “Live Bottom (Pinnacle Trend) Stipulation” is assigned to leases in those blocks intended to protect the pinnacle trend and associated hard

- bottom communities from damage and, at the same time, provide for recovery of potential oil and gas resources. This stipulation was not invoked with the issuance

of these leases.

There are no IPF’s (including effluents, physical disturbances to the seafloor, and accidents) from the proposed development activities in Green Canyon Blocks 610 and 654 that could cause impacts to

Eastern Gulf live bottoms.

The activities proposed in this plan will be covered by our Regional OSRP.



### 4. Chemosynthetic Communities

Chemosynthetic communities are defined as persistent, largely sessile assemblages of marine organisms dependent upon chemosynthetic bacteria as their primary found source (MacDonald, 1992). Chemosynthetic clams, mussels, and tubeworms have been discovered in association with hydrocarbon seeps in the northern Gulf of Mexico. Initial discoveries of cold

- water seep communities indicated that they are primarily associated with hydrocarbon and H 2 

### S seep areas (Kennicutt and Gallaway, 1985; Brooks et al., 1986a). Since the initial discovery in 1986 of chemosynthetic communities dependent on hydrocarbon seepage in the Gulf of Mexico, their geographic range has been found to include the Texas, Louisiana and Alabama continental slope with a depth range varying from less than 500 m to 2200 m (MacDonald, 1992). To date, there are 43 sites (in 40 blocks) across the northern Gulf of Mexico continental slope where the presence of chemosynthetic metazoans (dependent on hydrocarbon seepage) has been definitively documented (MacDonald, 19 92).

There are no documented high

- density chemosynthetic communities in Green Canyon Blocks 610 and

654 according to Notice to Lessees and Operators (NTL) No. 2009

- G40. Development activities have been carefully planned to avoid seafloor disturbance in the vicinity of features that could support high

density chemosynthetic communities.

There are no IPF’s (including effluents, physical disturbances to the seafloor, and accidents) from the proposed supplemental development activities in Green Canyon Blocks 6 10 and 654 that could cause impacts to Chemosynthetic Communities (refer to information referenced in Section 6 (a), Chemosynthetic Communities).BHP Billiton Petroleum (GOM) Inc. 35 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### 5. Water Quality

There are no IPF’s (including effluents, physical disturbances to the seafloor, and accidents) from the proposed supplemental development activities in Green Canyon Blocks 610 and 654 that could potentially cause impacts to water quality. The major discharges from offshore oil and gas production activities include produced water, ballast water, and uncontaminated seawater. Minor discharges from the offshore oil and gas industry include well completion and workover fluids; deck drainage; and other sanitary and domestic wastes, and miscellaneous discharges. Since all discharges will be made in

acc ordance with a general National Pollutant Discharge Elimination System (NPDES) permit issued by U.S. Environmental Protection Agency (USEPA), operational discharges are not expected to cause significant adverse impacts to water quality.

With regards to marine trash and debris, effective January 01, 2012, the Bureau of Safety and

Environmental Enforcement issued BSEE NTL No. 2012

- G01 pursuant to 30 CFR 2 50.103 to provide guidance and assist the operators in preventing intentional and / or accidental introduction of trash and

debris into the marine environment. With this assistance and with laws such as MARPOL

- Annex V, the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the U.S. Coast Guard and the U.S. Environmental Protection Agency, our employees will ensure that all offshore personnel, including contractors and other support services

- related personnel have complete understanding of the requirement that Operators be proactive in avoiding accidental l oss of solid waste items on the OCS.

Offshore accidents, such as blowouts and spills could also occur and have the potential to alter offshore water quality. Given the low frequency of blowouts documented by the BOEM, minimum impacts on water quality due to resuspension of sediments are expected.

Oil spills related to the proposed action are assumed to be mostly very small events (and for spills greater than 50 bbl) to occur very infrequently. It is unlikely that an accidental oil spill would occur from the proposed development activities. If a spill were to occur, the dissolved components and small oil droplets would temporarily affect the water quality of marine waters. Dispersion by currents and microbial degradation would remove the oil from the water column or dilute the constituents to background levels.

The activities proposed in this plan will be covered by our Regional OSRP.



### 6. Fisheries

Effects on commercial fisheries from development activities associated with this plan in Green Canyon

Blo cks 610 and 654 could come from oil spills and subsurface blowouts.

An accidental oil spill that may occur as a result of the proposed development has the potential to cause some detrimental effects to fisheries. However, it is unlikely that an accidental surface or subsurface oil spill would occur from the proposed development activities.

Subsurface blowouts have the potential to adversely affect commercial fishery resources. Sandy sediments will be quickly redeposited within 400 m of the blowout site and finer sediments will be widely dispersed and redeposited over a period of 30 days or longer within a few thousand meters.

If a spill were to occur in open waters of the OCS proximate to mobile adult finfish or shellfish, the effects would likely be sublethal and the extent of damage would be reduced to the capability of adult fish and shellfish to avoid a spill, to metabolize hydrocarbons, and to excrete both metabolites and parent compounds. The effect of oil spills on fisheries is expected to cause less than 1 percent decrease in commercial populations or in commercial fishing.BHP Billiton Petroleum (GOM) Inc. 36 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### Drilling mud discharges contain chemicals toxic to marine fishes; however, this is only at concentrations 4 or 5 orders of magnitude higher than those found more than a few meters from the discharge point. Offshore discharges of drilling muds will dilute to background levels within 1000 meters of the discharge point and have a negligible effect on Central Gulf fisheries.

The activities proposed in this plan will be covered by our Regional OSRP.



### 7. Marine Mammals

Marine mammals may be adversely impacted by several IPF’s (including vessel traffic, noise, accidental oil spills, and loss of trash and debris ) , all of which could occur due to the proposed development acti vity

in Green Canyon Blocks 610 and 654

.

Chronic and sporadic sublethal effects could occur that may stress and / or weaken individuals of a local group or population and make them more susceptible to infection from natural or anthropogenic sources.

Fe w lethal effects are expected from oil spills, chance collisions with service vessels and ingestion of plastic material. Oil spills of any size are estimated to be aperiodic events that may contact cetaceans. Disturbance (e.g., noise) may stress animals, weaken their immune systems, and make them more vulnerable to parasites and diseases that normally would not be fatal.

The net result of any disturbance would depend on the size and percentage of the population affected, ecological importance of the disturbed area, environmental and biological parameters that influence an animal’s sensitivity to disturbance and stress, and the accommodation time in response to prolonged disturbance (Geraci and St. Aubin, 1980). Collisions between cetaceans and ships could cause serious injury or death (Laist et al., 2001). Sperm whales are one of 11 whale species that are hit commonly by ships (Laist et al., 2001). Collisions between OCS vessels and cetaceans within the project area are expected to be unusual events.

B SEE and BOEM issued JOINT NTL No. 2012

- G01 pursuant to 30 CFR 250.103, 550.103 and also 250.282 and 550.282 to explain how Operators must implement measures to minimize the risk of vessel strikes to protected species and report observations of injured or dead protected species effective January 1, 2012. We will ensure that our contract vessel operators are aware of their requirement to report sightings of any injured or dead protected species immediately to the BOEM Protected Species Biologist by telephone

.

With regards to marine trash and debris, effective January 1, 2012, BSEE issued BSEE NTL No. 2012

- G01 pursuant to 30 CFR 2 50.103 to provide guidance and assist the operators in preventing intentional

and / or accidental introduction of trash and debris into the marine environment. With this assistance and

with laws such as MARPOL

- Annex V, the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the U.S. Coast Guard and the U.S. Environmental

Protection Agency, our employees will ensure that all offshore personnel, including contractors and other support services

- related personnel have complete understanding of the requirement that Operators be proactive in avoiding accidental loss of solid waste items on the OCS.



### 8. Sea Turtles

IPF’s that could impact sea turtles include vessel traffic, noise, trash and debris, and accidental oil spills. Small numbers of turtles could be killed or injured by chance collision with service vessels or by eating indigestib le trash, particularly plastic items, accidentally lost from drill rigs, production facilities, and service vessels. Drilling rigs and project vessels produce noise that could disrupt normal behavior patterns and create some stress potentially making sea turtles more susceptible to disease. Oil spills and

oil

- spill

- response activities are potential threats that could have lethal effects on turtles. Contact with oil, consumption of oil particles, and oil

- contaminated prey could seriously affect individual sea turtles. Oil

spill

- response planning and the habitat protection requirements of the Oil Pollution Act of 1990 should mitigate these threats. Most OCS

- related impacts on sea turtles are expected to be sublethal. Chronic sublethal effects (e.g., stress) resulting in persistent physiological or behavioral changes and / or avoidance of affected areas could cause declines in survival or productivity, resulting in gradual population declines.BHP Billiton Petroleum (GOM) Inc. 37 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### BSEE and BOEM issued JOINT NTL No. 2012

- G01 pursuant to 30 CFR 250.103, 550.103 and also 250.282 and 550.282 to explain how Operators must implement measures to minimize the risk of vessel strikes to protected species and report observations of injured or dead protected species effective January 1, 2012. We will ensure that our contract vessel operators are aware of their requirement to report sightings of any injured or dead protected species immediately to the BOEM Protected Species Biologist by telephone.

With regards to marine trash and debris, effective Januar y 1, 2012, BSEE issued BSEE NTL No. 2012

- G01 pursuant to 30 CFR 2 50.103 to provide guidance and assist the operators in preventing intentional

and / or accidental introduction of trash and debris into the marine environment. With this assistance and

with laws such as MARPOL

- Annex V, the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the U.S. Coast Guard and the U.S. Environmental Protection Agency, our employees will ensure that all offshore personnel, including contractors and other support services

- related personnel have complete understanding of the requirement that Operators be proactive in avoiding accidental loss of solid waste items on the OCS.

The activities proposed in this plan will be covered by our Regional OSRP.



### 9. Air Quality

The proposed drilling and development activities are located 116 statute miles from the nearest Louisiana

shoreline.

Although the proposed operations are temporary in nature, there would be a limited degree of air quality degradation in the immediate vicinity. Emissions from drilling activities consist mainly of NOx and CO. These emissions are temporary in nature. Emissions of pollutants into the atmosphere from the drilling operations proposed are not expected to have significant impacts on onshore air quality because of the prevailing atmospheric conditions, emission heights, emission rates, and the distance of these emissions

from the coastline.

The Projected Air Quality Emissions Report indicates that the BOEM exemption level will not be exceeded during the operations proposed in the Supplemental DOCD. There are no existing facilities or

activities co

- located with the current proposed activities; therefore, the Complex Total Emissions are the

same as t he Plan Emissions.



### 10. Shipwreck Sites (Known or Potential)

There are no IPF’s (including physical disturbances to the seafloor) from the proposed supplemental

activities in Green Canyon Blocks 610 and 654 that could cause impacts to known or potential shipw reck sites. The proposed activities are not located in or adjacent to an OCS Block designated by BOEM as having high

- probability for the occurrence of shipwrecks.

However, in the event items of significant cultural resource potential are discovered during the proposed operations, BHPB will immediately halt all operations and notify the appropriate department at the Bureau of Ocean Energy Management for further evaluation and assistance.



### 11. Prehistoric Archaeological Sites

There are no IPF’s (including physical disturbances to the seafloor) from the proposed supplemental

activities in Green Canyon Blocks 610 and 654 that could cause impacts to prehistoric archaeological sites. The proposed activities are not located in or adjacent to an OCS Block designated by BOEM as having high

- probability for the occurrence of prehistoric archaeological sites.

However, in the event items of significant cultural resource potential are discovered during the proposed operations, BHPB will immediately halt all operations a nd notify the appropriate department at the Bureau of Ocean Energy Management for further evaluation and assistance.BHP Billiton Petroleum (GOM) Inc. 38 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## Vicinity of Offshore Location:

1. Essential Fish Habitat

IPF’s that could impact essential fish habitats as a result of the proposed development operations in the

Shenzi Field include effluents and accidents. The major effluent discharges from offshore oil and gas production activities include produced water, ballast water, and uncontaminated seawater. Minor discharges from the offshore oil and gas industry include well completion and workover fluids; deck drainage; and other sanitary and domestic wastes, and miscellaneous discharges. Since all discharges will be made in accordance with a general National Pollutant Discharge Elimination Sys tem (NPDES) permit issued by U.S. Environmental Protection Agency (USEPA), operational discharges are not expected to cause significant adverse impacts to water quality.

Offshore oil spillage from OCS operations is small compared with the volume of oil produced. Since 1980, OCS operators have produced about 5.5 BBO of oil, while the amount of oil spilled offshore totaled about 61,500 bbl (0.001%) or 1 bbl spilled for every 89,500 produced. In 1994, BOEM revised its oil

- spill occurrence rates for large spills (Anderson and LaBelle, 1994). An examination of the two major sources

of OCS

- related offshore spills (platforms and pipelines) shows that the greater risk of a large s pill is from a pipeline. There have been no spills ≥1000 bbls from OCS platforms since 1980.

An accidental oil spill that may occur as a result of the proposed development activity has the potential to cause some detrimental effects on essential fish habitat. However, it is unlikely that an accidental surface or subsurface oil spill would occur from the proposed activities.

If a spill were to occur in open waters of the OCS proximate to mobile adult finfish or shellfish, the effects would likely be sublethal and the extent of damage would be limited and lessened due to the capability of adult fish and shellfish to avoid a spill, to metabolize hydrocarbons, and to excrete both metabolites and parent compounds.

The activities proposed in this plan will be covered by our Regional OSRP.



### 2. Marine and Pelagic Birds

IPF’s that could impact marine and pelagic birds as a result of the proposed operations in Green Canyon

Block s 610 and 654 include air emissions, accidents and discarded trash and debris.

Em issions of pollutant into the atmosphere from the activities associated with the proposed development operations in this plan are not projected to have significant impacts on air quality that could harm marine and pelagic birds because of the prevailing atmospheric conditions, emission heights, emission rates and pollutant concentrations.

An accidental oil spill that may occur as a result of the proposed action has the potential to cause some detrimental effects on marine and pelagic birds. Some physical oiling could occur during dives, as well as secondary toxic effects through the uptake of prey.

The activities proposed in this plan will be covered by our Regional OSRP.

With regards to marine trash and debris, coastal and marine birds can commonly become entangled and snared in discarded trash and debris. Effective January 1, 2012 BSEE issued BSEE NTL No. 2012

- G01 pursuant to 30 CFR 2 50.103 to provide guidance and assist the operators in preventing intentional and /

or accidental introduction of trash and debris into the marine environment. With this assistance and with

laws such as MARPOL

- Annex V, the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the U.S. Coast Guard and the U.S. Environmental Protection Agency, our employees will ensure that all offshore personnel, including contractors and other support

services

- related personnel have complete understanding of the requirement that Operators be proactive in avoiding accidental loss of solid waste items on the OCS.BHP Billiton Petroleum (GOM) Inc. 39 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### 3. Public Health and Safety Due to Accidents

There are no IPF’s (including an accidental H 2 

### S releases) from the proposed development activities in the

Shenzi Field that could cause impacts to public health and safety.

In accordance with 30 CFR 250.490(c), NTL’s 2008

- G04 and 2009

- G27

, we have submitted sufficient information to justify our request that the area of our proposed activities be classified by BOEM as H 2 

### S absent. (Refer to specific inf ormation submitted in Section 4 o f the Plan.)



## Coastal and Onshore:

1. Beaches

There are no IPF’s (including accidents and marine trash and debris) associated with the development of

the Shenzi Field that could pose a major threat to the enjoyment and use of recreational beaches. The

oper ations proposed in this plan are not projected to have significant impacts on coastal beaches.

The operations proposed in this Plan are 116 statute miles from the nearest shoreline. In the event of an accidental oil spill, the level of response will be based on volume, weather, and the characteristics of the product spilled. BHPB’s objectives for spill response are to ensure the safety of citizens and response personnel; control the source of the spill, have a coordinated response effort; maximize the protection of environmental sensitive areas; contain, recover and remove as much of the spill product as possible; recover and rehabilitate injured wildlife; minimize economic impacts; and keep the general public informed of the response activities.

The activities proposed in this plan will be covered by our Regional OSRP.

With regards to marine trash and debris, effective January 01, 2012, the BSEE issued BSEE NTL No.

2012

- G01 pursuant to 30 CFR 2 50.103 to provide guidance and assist the operators in pre venting

intentional and / or accidental introduction of trash and debris into the marine environment. With this

assistance and with laws such as MARPOL

- Annex V, the Marine Plastic Pollution Research and Control Act, and regulations imposed by various agencies including the U.S. Coast Guard and the U.S. Environmental Protection Agency, our employees will ensure that all offshore personnel, including contractors and other support services

- related personnel have complete understanding of the requirement that Operators be proactive in avoiding accidental loss of solid waste items on the OCS.



### 2. Wetlands

There are no IPF’s (including accidents) associated with the development of the Shenzi Field that are projected to have a significant impact on wetlands.

The operations proposed in this Plan are 116 statute miles from the nearest shoreline. In the event of an accidental oil spill, the level of response will be based on volume, weather, and the characteristics of the product spilled. BHPB’s objectives for spill response are to ensure the safety of citizens and response personnel; control the source of the spill, have a coordinated response effort; maximize the protection of environmental sensitive areas; contain, recover and remove as much of the spill product as possible; recover and rehabilitate injured wildlife; minimize economic impacts; and keep the general public informed of the response activities.

The activities proposed in this plan will be covered by our Regional OSRP.BHP Billiton Petroleum (GOM) Inc. 40 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### 3. Shore Birds and Coastal Nesting Birds

There are no IPF’s (including accidents) associated with the development of Green Canyon Blocks 610

and 654 that are projected to have a significant impact on shore birds and coastal nesting birds.

The operations proposed in this Plan are 116 statute miles from the nearest shoreline. In the event of an accidental oil spill, the level of response will be based on volume, weather, and the characteristics of the product spilled. BHPB’s objectives for spill response are to ensure the safety of citizens and response personnel; control the source of the spill, have a coordinated response effort; maximize the protection of environmental sensitive areas; contain, recover and remove as much of the spill product as possible; recover and rehabilitate injured wildlife; minimize economic impacts; and keep the general public informed of the response activities.

The activities proposed in this plan will be covered by our Regional OSRP.



### 4. Coastal Wildlife Refuges

There are no IPF’s (including accidents) associated with the development of Green Canyon Blocks 610

and 654 that are projected to have a significant impact on coastal wildlife refuges.

The operations proposed in this Plan are 116 statute miles from the nearest shoreline. In the event of an

acci dental oil spill, the level of response will be based on volume, weather, and the characteristics of the product spilled. BHPB’s objectives for spill response are to ensure the safety of citizens and response personnel; control the source of the spill, have a coordinated response effort; maximize the protection of environmental sensitive areas; contain, recover and remove as much of the spill product as possible; recover and rehabilitate injured wildlife; minimize economic impacts; and keep the general pu blic informed of the response activities.

The activities proposed in this plan will be covered by our Regional OSRP.



### 5. Wilderness Areas

There are no IPF’s (including accidents) associated with the development of Green Canyon Blocks 610

and 654 that are projected to have a significant impact on wilderness areas.

The operations proposed in this Plan are 116 statute miles from the nearest shoreline. In the event of an accidental oil spill, the level of response will be based on volume, weather, and the characteristics of the product spilled. BHPB’s objectives for spill response are to ensure the safety of citizens and response personnel; control the source of the spill, have a coordinated response effort; maximize the protection of environmental sensitive areas; contain, recover and remove as much of the spill product as possible; recover and rehabilitate injured wildlife; minimize economic impacts; and keep the general public informed of the response activities.

The activities proposed in this plan will be covered by our Regional OSRP.

Other Environmental Resources Identified: None



### (d) Environmental Hazards

The site

- specific environmental conditions have been taken into account for the proposed activities under this plan. Being located in the Gulf of Mexico, all oil and gas exploratory and development operations may at sometime experience hurricane force winds, tropical storm activity and unusual surge and sea

currents.BHP Billiton Petroleum (GOM) Inc. 41 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### In accordance with requirements set forth in Title 33 CFR 146.140, an Emergency Evacuation Plan (EEP) is prepared and submitted to the appropriate USCG Marine Safety Office or Unit for review and ultimate approval. This plan provides descriptions to help define the type of storm based on the winds associated with it (i .e. major gulf storm, squall, tropical depression, tropical storm, gale warning, storm warning, hurricane, etc). Major hurricanes (storm having wind speeds in excess of 74 mph) in the Gulf normally form in the southern Gulf or Caribbean Sea. Tropical disturbances (storms having wind speeds greater than 40 mph but less than 73 mph) that originate near the facility do not provide much warning, but usually pass the rig or facility prior to attaining hurricane status.

Each tropical disturbance will be evaluated on its own merit and the operations modified accordingly. No impacts are expected on the proposed activities from site

- specific environmental conditions.



### (e ) Alternatives

There are no alternatives other than those required by regulation to be considered to reduce the environmental impacts of the activities proposed in this plan.



### (f ) Mitigation Measures

No mitigation measures other than those required by regulation will be considered to avoid, lessen or eliminate potential impacts on environmental resources.



### (g ) Consultation

There were no outside agencies or persons consulted regarding the potential environmental impacts associated with the activities proposed under this Supplemental DOCD.



### (h ) Preparer(s)

Kathy Camp K. Camp & Associates

Phone: 713.201.9627

Email: Kathy.camp@kcampassociates.com



### (i ) References

Geoscience Earth & Marine Services, Inc. Archaeological Assessment for BHP Billiton Petroleum, (BHP B ) for Blocks 564

- 566, 608

- 610, 652

- 654, and 696

- 698 , Green Canyon Area, in the U.S. Gulf of Mexico, based on previously collected AUV (Autonomous Underwater Vehicle) data and supplemented with recently acquired ROV (Remotely Operated Vehicle) data.

Fugro GeoServices, Inc., Report No. 2405

- 2079 (SHE

- FUG

- 05

- GT

- REP

- 0009), entitled Engineering

Geological Assessment - Shenzi Development, Green Canyon Area in the Gulf of Mexico

“Shenzi Prospect, Green Canyon Block 653, OCS -G- 20084, Shallow Drilling Hazard Assessment for Supplemental Locations D and E” was prepared by Robert J. Bruce (Consulting Geophysicist) and submitted in conjunction with EP Control No. S 6112.

Federal Register, Tuesday, August 30, 2005, 30 CFR Parts 250 and 282, Oil and Gas Sulphur Operations in the Outer Continental Shelf
– Plans and Information; Final Rule effective September 29,

2005

Federal Register, Vol. 77, No. 163, August 22, 2012, Final Rule for Increased Safety Measures for Energy Development on the Outer Continental Shelf

Federal Register, Vol. 75, No. 198, October 14, 2010, Final Rule for Increased Safety Measures for Energy Development on the Outer Continental ShelfBHP Billiton Petroleum (GOM) Inc. 42 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

### NTL 2010

- N06 effective June 18, 2010 for Information Requirements for Exploration Plans, Development and Production Plans, and Development Operations Coordination Documents on the OCS

NTL 2009

- G40 effective January 27, 2010 for Deepwater Benthic Communities

NTL 2009

- G39 effective January 27, 2010 for Biologically

- Sensitive Underwater Features and Areas

NTL 2009

- G27 effective September 9, 2009 for Submitting Exploration Plans and Development Operations Coordination Documents

NTL 2008

- G04 effective May 1, 2008 for Information Requirements for Exploration Plans and Development Operations Coordination Documents

BSEE NTL No. 2012

- G01 effective January 1, 2012 for Marine Trash and Debris Awareness and

Elimination

JOINT NTL No. 2012

- G01 effective January 1, 2012 for Vessel Strike Avoidance and Injured / Dead Protected Species Reporting

Final EIS, Western Planning Area Sales (204, 207, 210, 215 & 218), and Central Plannin g Area Sales (025, 206, 208, 213, 216 & 222)

Marine Mammal Protection Act of 1972 (MMPA)

Endangered Species Act of 1973 (ESA)BHP Billiton Petroleum (GOM) Inc. 43 Green Canyon Block s 610 and 65 4 Supplemental DOCD Leases OCS -G 16765 and 2008 5 

## SECTION 20 **- ADMINISTRATIVE INFORMATION** 

(a) Exempted Information Description (Public Information Copies Only)

In accordance with 43 CFR Part 2, Appendix B , the following information is exempt from disclosure and has been omitted from the Public Information copy of this plan:

• The geologic objectives, BHL, TVD, and MD information on form BOEM

- 137 (OCS Plan Information Form) in Attachment A

• All items under Geological and Geophysical Information, except for the non

- proprietary version of

shallow hazards assessment

• Correlative well information used to justify H2S classification request under Hydrogen Sulfide

Information

• Mineral and Resource Conservation Information



### (b) Bibliography

Initial DOCD (Control No. N- 9001 ) approved for BHPB on September 1 8 , 2007

Revised DOCD (Control No. R

- 5124) approved for BHPB on May 31, 2011

Supplemental DOCD (Control No. S

- 7487) approved for BHPB on November 16, 2011

Supplemental DOCD (Control No. S

- 7672) - In Review

Geoscience Earth & Marine Services, Inc. Archaeological Assessment for BHP Billiton Petroleum, (BHPB) for Blocks 564

- 566, 608

- 610, 652

- 654, and 696

- 698, Green Canyon Area, in the U.S. Gulf of Mexico, based on previously collected AUV (Autonomous Underwater Vehicle) data and supplemented with recently acquired ROV (Remotely Operated Vehicle) data.

Fugro GeoServices, Inc., Report No. 2405

- 2079 (SHE

- FUG

- 05

- GT

- REP

- 0009), entitled Engineer ing

Geological Assessment - Shenzi Development, Green Canyon Area in the Gulf of Mexico

“Shenzi Prospect, Green Canyon Block 653, OCS -G- 20084, Shallow Drilling Hazard Assessment for Supplemental Locations D and E” was prepared by Robert J. Bruce (Consulting Geophysicist) and submitted in conjunction with EP Control No. S

- 6112.



## Rev. 1

– 08/20/2014

## U.S. Department of the Interior OMB Control Number: 1010

- 0151 

## Bureau of Ocean Energy Management OMB Approval Expires: 12/31/14



## OCS PLAN INFORMATION FORM

General Information

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

Company Name: BHP Billiton Petroleum (GOM) Inc

. BOEM Operator Number: 02010

Address: 1360 Post Oak Blvd, Suite 150 Contact Person: Kathy Camp

Houston, TX 77056 Phone Number: 713.201.9627

Email Address: Kathy.camp@kcampassociates.com

If a service fee is required under 30 CFR 550.125(a), provide the Amount paid 4,238.00 

### Receipt No. 74646009468



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

Lease(s): 16765

, 2008 5 Area: GC Block(s):

6 10 , 65 4 Project Name (if applicable): Shenzi

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

Platform/Well Name SB101 Total Volume of WCD 131,116 STB/D API Gravity : 

### 32.1 **̊**

Distance to Close s t Land (Miles): 116 Volume from uncontrolled blowout : 1 3.11 M MSTB

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

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

- 5124

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 Activities and Tentative Schedule (Mark all that apply)

Proposed Activity Start Date End Date No. of Days

DRILL & COMPLETE H

- I (RESPUD H

- It) 04/01/2015 07/18//2015 108

Install 1 Jumper 07/19/2015 07/23/2015 4

Commence Production from H

- I (RESPUD H

- It) 08/01/2015 08/01/2017



### Description of Drilling Rig Description of Structure

Jackup X DP Drillship Caisson Tension leg platform

Gorilla Jackup 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): Invictus



### Description of Lease Term Pipelines

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

One ( 1 ) GC 610 H

- I GC 610 Manifold H 6 60



### FORM BOEM

- 0137 ( Decem ber 2011 - Supersedes all previous editions of this form which may not be used

. 

### Page 1 of 5



## Rev. 1

– 08/20/2014

Rev. 2

– 09/24/2014

FINAL

– 10/08/2014 (Updated Schedule)

## OCS 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) H-I 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. Complex ID.

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) 95,693 For structures, volume of all storage and pipelines (Bbls) API Gravity of

fluid 29.3

Surface Location Bottom

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

Lease No. G

- 16765

Area Name GC

Block No. 610

Block Line Departures (in feet) N/S Departure: 1173

. 37 F S L N/S Departure: F____L N/S Departure: F____L N/S Departure: F____L E/W Departure: 518

. 31 F W L E/W Departure: F____L E/W Departure: F____L E/W Departure: F____L

Lambert X

- Y

coordinates X: 2, 582

, 438

. 31 X:

X:

X:
Y: 9,93 2

, 853

. 37 Y:

Y:

Y:

Latitude / Longitude Latitude: 27o 20 ’ 32.856 ”N Latitude:

Latitude:

Latitude: Longitude: 90o 0 5 ’ 52.554 ”W Longitude: Longitude: Longitude: Water Depth (Feet): 4275 MD (Feet): TVD (Feet): MD (Feet): MD (Feet): MD (Feet): TVD (Feet): TVD (Feet): TVD (Feet): Anchor Radius (if applicable) in feet:

NONE 

### 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 5

## OCS 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)

H

- It (Respud) 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. Complex ID.

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) For structures, volume of all storage and pipelines (Bbls) API Gravity of

fluid

Surface Location Bottom

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

Lease No. G

- 16765

Area Name GC

Block No. 610

Block Line Departures (in feet) N/S Departure: 11 81.55 FSL N/S Departure: F____L N/S Departure: F____L N/S Departure: F____L E/W Departure: 478.13 FWL E/W Departure: F____L E/W Departure: F____L E/W Departure: F____L

Lambert X

- Y

coordinates X: 2,582,3 9 8.1 3 X:

X:

X:
Y: 9,932,8 61.55 Y:

Y:

Y:

Latitude / Longitude Latitude: 27o 20’ 32. 946 ”N Latitude:

Latitude:

Latitude: Longitude: 90o 05’ 52. 997 ”W Longitude: Longitude: Longitude: Water Depth (Feet): 4275 MD (Feet): TVD (Feet): MD (Feet): MD (Feet): MD (Feet): TVD (Feet): TVD (Feet): TVD (Feet): Anchor Radius (if applicable) in feet:

NONE 

### 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 ( Decemb er 2011 - Supersedes all previous editions of this form which may not be used.) 

### Page 3 of 5

## OCS PLAN INFORMATION FORM (CONTINUED)

Provide the following information for the well with the highest Worst Case Discharge volume:

Worst Case Discharge (WCD) Well Information

WCD Well

Name Surface

Lease Surface

Area/Block Bottom

Lease Bottom

Area/Block Product Type MD (feet) TVD (feet)



### Analog Well(s)

Area/Block OCS Lease Well No. API No.



### Geologic Data for WCD

Open Hole Interval for WCD
Top (TVD in feet) Base (TVD in feet)

20894 23531



### Sand 1 Sand 2 Sand 3 Sand 4 Sand 5

Formation Data

Sand Name Estimated Top TVD

Estimated Base TVD Estimated Net Sand Height MD (Net Pay if hydrocarbon) Estimated Net Sand Height TVT (net Pay if hydrocarbon) Fluid Type Used in WCD? (Yes/No)

Seismic Survey Used
Seismic Depth Volume

Engineering Data for WCD

WCD Engineering Items
WCD (STB/Day)

WCD Calculated at Mudline Yes No Atmosphere Yes No

Flow Correlation Outlet Pressure (Psia)

Gas Turbulence Factor

Software Model Used

Sand 1 Sand 2 Sand 3 Sand 4 Sand 5

Formation Data

Sand Name Permeability (mD)

Initial Pressure (PSIA)

FORM BOEM

- 0137 (December 2011 - Supersedes all previous editions of this form which may not be used.) 

### Page 4 of 5

## OCS PLAN INFORMATION FORM (CONTINUED)

Sand 1 Sand 2 Sand 3 Sand 4 Sand 5



### Formation Data
Reservoir Temperature (F)

Porosity (0.00)

Water Saturation (0.00)

Rock Compressibility (microsips)

Water Salinity (ppm)

Drive Mechanism

Drainage Area (acres)



### Oil Reservoir Data

Bubble Point Pressure (PSIA)

Initial Bo (RB/STB)

Bo (RB/STB) @ Bubble Point

Rsi (SCF/STB)

Initial Oil Viscosity (Cp)

Oil Viscosity (CP) @ Bubble Point

Oil Compressibility (1/PSIA)

Oil API Gravity (API)

Specific Gas Gravity (0.00)



### Gas Reservoir Data

Condensate API Gravity (API)

Specific Gas Gravity (0.00)

Yield (STB/MMCF)



### Source of Permeability Used

Permeability from MDT Permeability from Core Analysis Percussion core: Rotary sidewall core Conventional core: Pressure Transient Analysis Permeability from CMR or NMR log analysis Permeability from other source



### Provide Model Input Values for Relative Permeability:

Residual Oil to Gas fraction (=1

- Slc

- Swc) Residual Oil to Water fraction (=Soc)

Critical Gas fraction (Sgc, Gas/Oil

- Water Systems)

Residual Gas to Water fraction (Sgc, Gas/Gas

- Water Systems)

Kro Oil Curve Endpoint (fraction of absolute permeability)

Krg Gas Curve Endpoint (fraction of absolute permeability)

Krw Water Curve Endpoint (fraction of absolute permeability)



### Paperwork Reduction Act of 1995 Statement: The Paperwork Reduction Act of 1995 (44 U.S.C. 2501 et seq.) requires us to inform you that BOEM collects this information as part of an applicant’s Exploration Plan or Development Operations Coordinat ion

Document submitted for BOEM approval. We use the information to facilitate our review and data entry for OCS plans. We will protect proprietary data according to the Freedom of Information Act and 30 CFR 550.197. An agency may not conduct or sponsor

, and a person is not required to respond to, a collection of information unless it displays a currently valid Office of Management and Budget Control Number. Responses are mandatory (43 U.S.C. 1334). The public reporting burden for this form is included in the burden for preparin g Exploration Plans and Development Operations Coordination Documents. We estimate that burden to average 600 hours with an accompanying EP, or 700 hours with an accompanying DPP or DOCD, including the time for reviewing instructions, gathering and maintai ning data, and completing and reviewing the forms associated with subpart B. Direct comments regarding the burden estimate or any other aspect of this form to the Information Collection Clearance Officer, Bureau of Oce an Energy Management, 381 Elden Street, Herndon, VA 20170.



### FORM BOEM

- 0137 (December 2011 - Supersedes all previous editions of this form which may not be used.) 

### Page 5 of 5

## WATER DEPTH AND SEAFLOOR/ NEAR SEAFLOOR FEATURES MAP

PROPOSED SHENZI H-I LOCATION

BLOCK 610, GREEN CANYON AREA, GULF OF MEXICO 

# N

Scale = 1: 12000



### Legend

Drawn by: JRP 7/10/2014From: paygovadmin@mail.doc.twai.gov

To: Jeff Camp

Subject: Pay.gov Payment Confirmation: BOEM Development/DOCD Plan - BD

Date: Friday, July 11, 2014 11:01:15 AM



### 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 Development/DOCD Plan - BD Pay.gov Tracking ID: 25GJVDJQ Agency Tracking ID: 74646009468 Transaction Type: Sale
Transaction Date: Jul 11, 2014 12:01:13 PM

Account Holder Name: Susan Wilson Transaction Amount: $4,238.00 Billing Address: 1360 Post Oak, Suite 150 City: Houston

State/Province: TX Zip/Postal Code: 77056 Country: USA Card Type: AmericanExpress

Card Number: ************1009

Region: Gulf of Mexico

Contact: Susan Wilson 713-599-6349 Company Name/No: BHP Billiton Petroleum (GOM) Inc., 02010 Lease Number(s): 16765, , , ,

Area-Block: Green Canyon GC, 610: , : , : , : , Type-Wells: Supplemental Plan, 1

THIS IS AN AUTOMATED MESSAGE. PLEASE DO NOT REPLY.please specify if the amount reported is a total or per well amountAmount is per wellProjected generated wasteType of WasteComposition Projected Amount Discharge rate Discharge MethodAnswerYes or NoWill drilling occur ? Ifyes, you should list muds and cuttingsWater-based drillingfluidNaCl brine; Evaporated Salt;Xanthan Gum; Barite21,508 bbls269 bbl/dayoverboard / seafloorNoCuttings wetted with water-based fluidCuttings wetted withseawater, gel, and freshwater pad mud residue fromriserless hole sections3,112 bbls39 bbl/dayseafloorNoSynthetic-based drilling fluid amount adhering to cuttings Baroid Accolade SBM3,742 bbls47 bbl/dayoverboardNoCuttings wetted with synthetic-based fluidCuttings wetted with residueof Baroid Accolade SBM4,996 bbls62 bbl/dayoverboardNoWill humans be there? Ifyes, expect conventional wasteDomestic wasteKitchen waste31,760 bbls397 bbl/day remove floating solids anddischargeNoSanitary wasteSanitary waste3,840 bbls48 bbl/day chlorinate and dischargeNoIs there a deck? If yes, there will be Deck DrainageDeck DrainageRainfall & potable water 17,680 bbls221 bbl/dayfilter oil and grease anddischargeNoWill you conduct well treatment, completion, or workover?Well treatment fluidsN/AN/AN/AN/ANoWell completion fluidsWater based fluids & seawater2,000 bbls25 bbl/dayOverboard w/ successfulstatic sheen/O&GNoWorkover fluidsN/AN/AN/AN/ANoMiscellaneous discharges. If yes, only fill in thoseassociated with your activity.Desalinization unit dischargeMax capacity106,240 bbls1,328 bbl/dayoverboardNoBlowout prevent fluidStack Magic ECO-FV2320 bbls4 bbl/dayoverboardNoBallast waterSea Water98,209 bbls500 bbl/dayoverboardNoBilge waterOil/Water Mixture2,000 bbls25 bbl/day0<15ppm overboardNoExcess cement at seafloorClass H486 bbls5 bbl/minseafloorNoFire waterSea Water86,240 bbls1,078 bbl/dayoverboardNoCooling waterSea Water53,075,920 bbls 663,449 bbl/dayoverboardNoWill you produce hydrocarbons? If yes fill in for produced water.Produced waterN/AN/AN/AN/ANoWill you be covered by an individual or general NPDES permit ?General PermitNOTE: If you will not have a type of waste, enter NA in the row.TABLE 1. WASTES YOU WILL GENERATE, TREAT AND DOWNHOLE DISPOSE ORDISCHARGE TO THE GOM - Deepwater InvictusProjectedDownholeDisposalProjectedOceanDischargesplease specify whetherthe amountreportedis atotalor per wellProjectedgenerated wasteSolid and Liquid WastestransportationType of Waste - based on (1) 90-day well CompositionTransport MethodName/Location of FacilityAmount Disposal MethodWill drilling occur ? If yes, fill in the muds and cuttings.Cuttings wetted with Water-based fluidN/AN/AN/AN/AN/AOil-based drilling fluid or mudN/AN/AN/AN/AN/ACuttings wetted with oil-based fluidsN/AN/AN/AN/AN/ASynthetic-based drilling fluid or mudWhole mud sent back in afterwell has been abandoned forreconditioning & reuseBelow deck storage tanks on offshoresupport vesselsBaroid facility at Fourchonshore base7,500 bbls/well recycledSynthetic-based drilling fluid or mudTank washings from offshoreworkboats (9.0 ppg BaroidAccolade SBM)Below deck storage tanks on offshoresupport vesselsNewpark EnvironmentalServices Inc., Fourchon, La1,750 bbls/well injectedCuttings wetted with Synthetic-based fluid Cuttings wetted with residueof Baroid 9.0 ppg AccoladeCuttings boxes on offshore supportvesselsNewpark EnvironmentalServices Inc., Fourchon, La750 bbls/well injectedWill you produce hydrocarbons? If yes fill in for produced sand.Produced sandN/AN/AN/AN/AN/ATrash and debrisnon-recyclable / nonhazardous refuse generatedby personnel on boardMODUtransport in bags / baskets on vessel toshorebase - picked up at shorebase andtrucked to private facilityRiver Birch Landfill inAvondale, LA via GallianoWaste Disposal in Galliano,LA160 cu yds / well LandfillTrash and debrisnon-hazardous recyclablesand scrap metaltransport in bags / baskets on vessel toshorebase - picked up at shorebase andtrucked to private facilityARC in New Iberia, LA 50,000 lbs / well RecycleWaste and Used oiloil filters, rags, pads, emptydrumstransfer for recycle or fuel blending L&L Oilfield Services inFourchon, LA or SafetyKleen Systems, Inc. transferfacility in Kenner, LA320 lbs / well Recycle or fuelblendWash waterwater with trace amounts ofinternal olefin & esterPicked up at shorebase & trucked toprivate facilityNewpark EnvironmentalServices Inc., Fourchon, La1000 bbls/well injectedChemical product wastespaint waste, chemicals,solvents, etc.N/AN/AN/AN/AWaste DisposalTABLE 2. WASTES YOU WILL TRANSPORT AND /OR DISPOSE OF ONSHOREWill you have additional wastes that are not permitted for discharge? If yes,fill in the appropriate rows.NOTE: This corresponds to the cuttings wetted with synthetic base fluid that are captured in cutting boxes if the per well average limit of 6.9% ROC by weight is forecasted to be exceeded or in theevent that "Tar" is encountered and "Zero" descharge is required.OMB Control No. 1010-0151
OMB Approval Expires: 12/31/2011



### FORM BOEM-139 (October 2011 - Supersedes all previous versions of form BOEM-139 which may not be used). 

### Page 1 of 8 COMPANY BHP Billiton Pet. (GOM) Inc.

AREA Green Canyon

BLOCK 654

LEASE OCS-G 20085

PLATFORM Shenzi Field

WELL H-I

COMPANY CONTACT Susan Wilson

TELEPHONE NO. 713 599 6349

REMARKS Drill and complete wells with Drillship (Invictus)

LEASE TERM PIPELINE CONSTRUCTION INFORMATION:

YEAR NUMBER OF TOTAL NUMBER OF CONSTRUCTION DAYS

PIPELINES

2015 4

2016

2017

2018

2019EMISSIONS FACTORS

FORM BOEM-139 (October 2011 - Supersedes all previous versions of form BOEM-139 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 Btu/hp-hr 2543.5

Equipment/Emission Factors units PM SOx NOx VOC CO CO2-e [1] REF. DATE

4

Diesel Turbines lb/MMBtu 0.0203 0.00152 0.88 0.00803 0.0124 163.6 AP-42 3.1-2a &
Background 3.4-2 04/00

Diesel Recip. < 600 hp. lb/MMBtu 0.31 0.29 4.41 0.36 0.95 163.6 AP-42 3.3-1 10/96 Diesel Recip. < 600 hp. lb/hp-hr 0.0022 1.08E-05 0.031 0.0025141 0.00668 1.15 AP-42 3.3-1 10/96 Diesel Recip. < 600 hp. g/hp-hr 1 4.89E-03 14.06 1.14 3.03 521.6 AP42 3.3-1 10/96

Diesel Recip. < 600 hp.-EPA Tier 1 [2] g/kW-hr 0.54 9.2 1.3 11.4 EPA Tier 1

Diesel Recip. < 600 hp.-EPA Tier 1 [2] lb/hp-hr 0.000888 0.0151 0.00214 0.0187 EPA Tier 1

Diesel Recip. > 600 hp.-EPA Tier 1 [10] g/kW-hr 0.54 9.2 1.3 11.4 EPA Tier 1

Diesel Recip. < 600 hp.-EPA Tier 2 [3] g/kW-hr 0.2 6.4 3.5 EPA Tier 2

Diesel Recip. < 600 hp.-EPA Tier 2 [3] lb/hp-hr 0.000329 0.0109 0.00576 EPA Tier 2

Diesel Recip. < 600 hp.-EPA Tier 3 [4] g/kW-hr 0.3 4 5 EPA Tier 3

Diesel Recip. < 600 hp.-EPA Tier 3 [4] lb/hp-hr 0.000329 0.00658 0.00576 EPA Tier 3
Diesel Recip. > 600 hp. lb/MMBtu 0.0573 0.001515 3.2 0.0819 0.85 163.6 AP-42 3.4-1 10/96
Diesel Recip. > 600 hp.-IMO Tier 1 (=> 2000

rpm) [5] g/kW-hr 9.8 7.2 IMO Tier 1

Diesel Recip. > 600 hp.-Marine Tier 1 (130-

1999 rpm) [6] g/kW-hr 45*(N)^(-0.2) 40CFR94.8(a)(1) 12/07

Diesel Recip. ≥37kw -Marine Tier 2

(displacement 1.2 L - >5.0 L/cyl.) [7] g/kW-hr 0.2 7.20 5.0 40CFR94.8(a)(2) 12/07

Diesel Recip. > 600 hp.-Invictus-Main [8] g/kW-hr 9.7 Main Engines

Manufacturer

Data Diesel Recip. > 600 hp. lb/hp-hr 7.00E-04 1.08E-05 0.024 0.0007 0.0055 1.16 AP-42 3.4-1 10/96 Diesel Recip. > 600 hp. g/hp-hr 0.32 4.89E-03 11 0.33 2.49 526.2 AP42 3.4-1 10/96 Duel Fuel (NG & Diesel) lb/MMBtu 0.0573 0.183150 2.7 0.02 1.16 122.6 AP-42 3.4-1 10/96 Duel Fuel (NG & Diesel) lb/hp-hr 0.0007 0.001352 0.018 0.00132 0.0075 122.6 AP-42 3.4-1 10/96

Diesel Boiler lbs/bbl 0.084 0.009075 0.84 0.008 0.21 163.6 AP-42 1.3-12,14 9/98

Sulphur Content Source Value Units

Fuel Gas 3.33 ppm

Diesel Fuel [9] 0.0015 % weight Produced Gas( Flares) 3.33 ppm Produced Oil (Liquid Flaring) 2.86 % weight

The following equations were used in formulating the conversion factors used in the application package: kW: hp = (kW) x (1.341 hp/kW). Factor = 1.341 hp/kW.

[10] Diesel Recip. > 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [9] BHPB utilizes Ultra Low Sulfur Diesel for all diesel combustion sources. Therefore, SO 2 emissions have been calculated based on a maximum sulfur content of 15 ppm in diesel fuel assuming that

100 percent of sulfur in the fuel is oxidized to SO 2

. [8] Diesel Recip. > 600 hp.-Invictus-Main: NOx emission factor is based on the TOI Invictus engine manufacturer's data. The main engines on Invictus are IMO Tier II certified engines. [1] The calculated emission factors for CO2-e (CO2, CH4 and N2O) are based on 40 CFR 98, Tables C-1 & C-2.

[5] Diesel Recip. > 600 hp.-IMO Tier 1 (=> 2000 rpm): NOx emission factors for IMO Tier 1 diesel engines on certain cement unit engines with rated engine rpm is equal to or greater than 2000.

[7] Diesel Recip. ≥37kw -Marine Tier 2: VESSELS: EPA Marine Engine Tier 2 for marine engines maunfactured after 2004 with a per cylinder displacement of 1.2 L - >5.0 L. [6] Diesel Recip. > 600 hp.-Marine Tier 1, for NOx: 45.0 x N^(-0.20) g/kW-hr, where N is maximum/rated engine rpm from 130-1999. Vessel (Crew) maximum rpm is 1,800 per main engine. Vessel (Work) main engines maximum rpm are 1000 rpm, and generators and SDT are 1800 rpm. [2] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, and CO emission factors for EPA Tier 1 diesel engines on certain wireline and cement unit engines.

[3] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines on certain wireline and cement unit engines.

[4] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines on certain wireline and cement unit engines.FORM BOEM-139 (October 2011 - Supersedes all previous versions of form BOEM-139 which may not be used). Page 3 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL CONTACT PHONE REMARKS

BHP Billiton Pet. (GOM) Inc. Green Canyon 654 OCS-G 20085 Shenzi Field H-I Susan Wilson 713 599 6349

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 CO2 PM SOx NOx VOC CO CO2

DRILLING

DP DRILLSHIP 63149 3050.10 73202.32 24 108 44.85 0.68 1019.53 53.52 369.13 73214.78 58.13 0.88 1321.31 69.36 478.39 94886.35

PRIME MOVER>600hp diesel [1] [2] 56310 2719.77 65274.55 39.42 0.61 897.98 40.97 309.71 65319.60 0.00 0.00 0.00 0.00 0.00 0.00 Emergency Generator>600hp diesel 2279 110.08 2641.82 1.60 0.02 54.70 1.66 12.53 2643.64 0.00 0.00 0.00 0.00 0.00 0.00
2-300 HP WIRELINE <600hp diesel-POSU-CA PU Eng. [3] 600 28.98 695.52 0.20 0.01 3.95 1.51 3.46 690.00 0.00 0.00 0.00 0.00 0.00 0.00 WIRELINE <600hp diesel-GSU-W Generator 160 7.73 185.47 0.35 0.00 4.96 0.40 1.07 184.00 0.00 0.00 0.00 0.00 0.00 0.00 WIRELINE <600hp diesel-Generator DHPS 160 7.73 185.47 0.35 0.00 4.96 0.40 1.07 184.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING <600hp diesel-Batch Mixer [4] 250 12.08 289.80 0.08 0.00 2.73 0.63 1.44 287.50 0.00 0.00 0.00 0.00 0.00 0.00
CEMENTING <600hp diesel (Nitrogen pump) [5] 490 23.67 568.01 0.44 0.01 7.41 1.05 9.18 563.50 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 4 0.19 4.64 0.00 0.00 0.06 0.00 0.02 4.64 0.00 0.00 0.00 0.00 0.00 0.00 EMERGENCY EQUIP <600hp diesel-Fast Rescue 149 7.20 172.72 0.33 0.00 4.62 0.37 1.00 171.35 0.00 0.00 0.00 0.00 0.00 0.00 6-29HP EMERGENCY EQUIP <600hp diesel-Lifeboat 174 8.40 201.70 0.38 0.00 5.39 0.44 1.16 200.10 0.00 0.00 0.00 0.00 0.00 0.00 EMERGENCY EQUIP <600hp diesel-Air Compressor 38 1.84 44.05 0.08 0.00 1.18 0.10 0.25 43.70 0.00 0.00 0.00 0.00 0.00 0.00

3-415 HP SEISMIC OP ENGINE <600hp diesel [8] 1245 60.13 1443.20 0.41 0.01 13.57 3.13 7.17 1431.75 0.00 0.00 0.00 0.00 0.00 0.00

SLICKLINE <600hp diesel [9] 106 5.12 122.88 0.23 0.00 1.60 0.27 0.71 121.90 0.00 0.00 0.00 0.00 0.00 0.00

FLUID FILTRATION PUMP <600hp diesel [10] 174 8.40 201.70 0.09 0.00 1.14 0.44 1.43 200.10 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING POWER PACK <600hp diesel [11] 260 12.56 301.39 0.23 0.00 3.93 0.56 4.87 299.00 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING PUMP >600hp diesel [12] 750 36.23 869.40 0.67 0.01 11.34 1.60 14.06 870.00 0.00 0.00 0.00 0.00 0.00 0.00

ECO Crew VESSELS>600hp diesel(crew) (main-4) [13] 9000 434.70 10432.80 24 108 2.96 0.10 106.53 6.55 49.50 10440.00 3.84 0.13 138.07 8.49 64.15 13530.24

VESSELS<600hp diesel(crew) (gens-3) [13] 1083 52.31 1255.41 24 108 0.36 0.01 12.82 2.72 8.90 1245.45 0.46 0.02 16.61 3.53 11.54 1614.10
Work/Supply VESSELS>600hp diesel(work) (main-2) [7] 13196 637.37 15296.80 24 108 9.24 0.14 245.22 9.60 72.58 15307.36 11.97 0.18 317.81 12.44 94.06 19838.34

2 vessels VESSELS>600hp diesel(work) (gen.-2) [7] 8000 386.40 9273.60 24 108 5.60 0.09 132.18 5.82 44.00 9280.00 7.26 0.11 171.30 7.54 57.02 12026.88

VESSELS>600hp diesel(work) (SDT) [7] 2200 106.26 2550.24 24 108 1.54 0.02 36.35 1.60 12.10 2552.00 2.00 0.03 47.11 2.07 15.68 3307.39 VESSELS<600hp diesel(work) (E-Generator) 502 24.22 581.38 24 108 1.11 0.01 15.55 1.26 3.35 581.78 1.43 0.01 20.15 1.63 4.34 753.99

INSTALLATION INSTALLATION Vessel >600hp diesel 4700 227.01 5448.24 24 4 3.29 0.05 112.80 3.42 25.85 17319.46 0.16 0.00 5.41 0.16 1.24 831.33 jumper / flowline SUPPORT VESSEL >600hp diesel 17000 821.1 19706.40 24 4 11.90 0.18 408.00 12.37 93.50 62644.87 0.57 0.01 19.58 0.59 4.49 3006.95

umbilical VESSELS>600hp diesel(supply) 12000 579.6 13910.40 24 4 8.40 0.13 288.00 8.73 66.00 44219.91 0.40 0.01 13.82 0.42 3.17 2122.56

2015 YEAR TOTAL (ANNUAL) 89.24 1.41 2376.98 105.59 744.91 236805.61 86.22 1.38 2071.18 106.24 734.09 151918.14

EXEMPTION

CALCULATION DISTANCE FROM LAND IN MILES 3862.80 3862.80 3862.80 3862.80 80869.40

116

[13] Diesel Recip. ≥37kw -Marine Tier 2: VESSELS: EPA Marine Engine Tier 2 for marine engines maunfactured after 2004 with a per cylinder displacement of 1.2 L - >5.0 L. [9] Diesel Recip. < 600 hp.-EPA Tier 1: NOx emission factor for EPA Tier 1 diesel engines. [10] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines. [11] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [12] Diesel Recip. > 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. Drill and complete wells with Drillship (Invictus)

[7] Diesel Recip. > 600 hp.-EPA Marine Tier 1: VESSELS: EPA Marine Engine Tier 1 for NOx: 45.0 x N^(-0.20) g/kW-hr, where N is maximum/rated engine rpm. Vessel (Crew) maximum rpm is 1,800 per main engine. Vessel (Work) main engines maximum rpm are 1000 rpm, and generators and SDT are 1800 rpm.
[8] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines. [1] PRIME MOVER >600hp diesel-Invictus: TOI's Invictus maximum output per main engine is 9385 hp/7000 kW. These calculations conservatively assume operating 6 of 6 engines.

[2] PRIME MOVER >600 hp. diesel-Invictus: NOx emission factor is based on the TOI Invictus engine manufacturer's data. The main engines on Invictus are IMO Tier II certified engines.
[3] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines on certain wireline and cement unit engines.

[4] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines on certain wireline and cement unit engines.

[5] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines on certain cement unit engines.

[6] Diesel Recip. > 600 hp.-IMO Tier I (=> 2000 rpm): NOx emission factors for IMO Tier I diesel engines on certain cement unit engines with rated engine rpm is equal to or greater than 2000.FORM BOEM-139 (October 2011 - Supersedes all previous versions of form BOEM-139 which may not be used). Page 3 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL CONTACT PHONE REMARKS

BHP Billiton Pet. (GOM) Inc. Green Canyon 654 OCS-G 20085 Shenzi Field Sus an Wilson 713 599 6349

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 CO2 PM SOx NOx VOC CO CO2

DRILLING

DP DRILLSHIP 63149 3050.10 73202.32 0 0 44.85 0.68 1019.53 53.52 369.13 73214.78 0.00 0.00 0.00 0.00 0.00 0.00

PRIME MOVER>600hp diesel [1] [2] 56310 2719.77 65274.55 39.42 0.61 897.98 40.97 309.71 65319.60 0.00 0.00 0.00 0.00 0.00 0.00 Emergency Generator>600hp diesel 2279 110.08 2641.82 1.60 0.02 54.70 1.66 12.53 2643.64 0.00 0.00 0.00 0.00 0.00 0.00
2-300 HP WIRELINE <600hp diesel-POSU-CA PU Eng. [3] 600 28.98 695.52 0.20 0.01 3.95 1.51 3.46 690.00 0.00 0.00 0.00 0.00 0.00 0.00 WIRELINE <600hp diesel-GSU-W Generator 160 7.73 185.47 0.35 0.00 4.96 0.40 1.07 184.00 0.00 0.00 0.00 0.00 0.00 0.00 WIRELINE <600hp diesel-Generator DHPS 160 7.73 185.47 0.35 0.00 4.96 0.40 1.07 184.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING <600hp diesel-Batch Mixer [4] 250 12.08 289.80 0.08 0.00 2.73 0.63 1.44 287.50 0.00 0.00 0.00 0.00 0.00 0.00
CEMENTING <600hp diesel (Nitrogen pump) [5] 490 23.67 568.01 0.44 0.01 7.41 1.05 9.18 563.50 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 4 0.19 4.64 0.00 0.00 0.06 0.00 0.02 4.64 0.00 0.00 0.00 0.00 0.00 0.00 EMERGENCY EQUIP <600hp diesel-Fast Rescue 149 7.20 172.72 0.33 0.00 4.62 0.37 1.00 171.35 0.00 0.00 0.00 0.00 0.00 0.00 6-29HP EMERGENCY EQUIP <600hp diesel-Lifeboat 174 8.40 201.70 0.38 0.00 5.39 0.44 1.16 200.10 0.00 0.00 0.00 0.00 0.00 0.00 EMERGENCY EQUIP <600hp diesel-Air Compressor 38 1.84 44.05 0.08 0.00 1.18 0.10 0.25 43.70 0.00 0.00 0.00 0.00 0.00 0.00

3-415 HP SEISMIC OP ENGINE <600hp diesel [8] 1245 60.13 1443.20 0.41 0.01 13.57 3.13 7.17 1431.75 0.00 0.00 0.00 0.00 0.00 0.00

SLICKLINE <600hp diesel [9] 106 5.12 122.88 0.23 0.00 1.60 0.27 0.71 121.90 0.00 0.00 0.00 0.00 0.00 0.00

FLUID FILTRATION PUMP <600hp diesel [10] 174 8.40 201.70 0.09 0.00 1.14 0.44 1.43 200.10 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING POWER PACK <600hp diesel [11] 260 12.56 301.39 0.23 0.00 3.93 0.56 4.87 299.00 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING PUMP >600hp diesel [12] 750 36.23 869.40 0.67 0.01 11.34 1.60 14.06 870.00 0.00 0.00 0.00 0.00 0.00 0.00

ECO Crew VESSELS>600hp diesel(crew) (main-4) [13] 9000 434.70 10432.80 0 0 2.96 0.10 106.53 6.55 49.50 10440.00 0.00 0.00 0.00 0.00 0.00 0.00

VESSELS<600hp diesel(crew) (gens-3) [13] 1083 52.31 1255.41 0 0 0.36 0.01 12.82 2.72 8.90 1245.45 0.00 0.00 0.00 0.00 0.00 0.00
Work/Supply VESSELS>600hp diesel(work) (main-2) [7] 13196 637.37 15296.80 0 0 9.24 0.14 245.22 9.60 72.58 15307.36 0.00 0.00 0.00 0.00 0.00 0.00

2 vessels VESSELS>600hp diesel(work) (gen.-2) [7] 8000 386.40 9273.60 0 0 5.60 0.09 132.18 5.82 44.00 9280.00 0.00 0.00 0.00 0.00 0.00 0.00

VESSELS>600hp diesel(work) (SDT) [7] 2200 106.26 2550.24 0 0 1.54 0.02 36.35 1.60 12.10 2552.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS<600hp diesel(work) (E-Generator) 502 24.22 581.38 0 0 1.11 0.01 15.55 1.26 3.35 581.78 0.00 0.00 0.00 0.00 0.00 0.00

INSTALLATION INSTALLATION Vessel >600hp diesel 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 jumper / flowline SUPPORT VESSEL >600hp diesel 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

umbilical VESSELS>600hp diesel(supply) 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2016 YEAR TOTAL (ANNUAL) 65.65 1.05 1568.18 81.07 559.56 112621.37 0.00 0.00 0.00 0.00 0.00 0.00

EXEMPTION

CALCULATION DISTANCE FROM LAND IN MILES 3862.80 3862.80 3862.80 3862.80 80869.40

116

[5] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines on certain cement unit engines. Drill and complete wells with Drillship (Invictus)

[1] PRIME MOVER >600hp diesel-Invictus: TOI's Invictus maximum output per main engine is 9385 hp/7000 kW. These calculations conservatively assume operating 6 of 6 engines.

[2] PRIME MOVER >600 hp. diesel-Invictus: NOx emission factor is based on the TOI Invictus engine manufacturer's data. The main engines on Invictus are IMO Tier II certified engines.
[3] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines on certain wireline and cement unit engines.

[4] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines on certain wireline and cement unit engines.

[12] Diesel Recip. > 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [13] Diesel Recip. ≥37kw -Marine Tier 2: VESSELS: EPA Marine Engine Tier 2 for marine engines maunfactured after 2004 with a per cylinder displacement of 1.2 L - >5.0 L. [6] Diesel Recip. > 600 hp.-IMO Tier I (=> 2000 rpm): NOx emission factors for IMO Tier I diesel engines on certain cement unit engines with rated engine rpm is equal to or greater than 2000.
[7] Diesel Recip. > 600 hp.-EPA Marine Tier 1: VESSELS: EPA Marine Engine Tier 1 for NOx: 45.0 x N^(-0.20) g/kW-hr, where N is maximum/rated engine rpm. Vessel (Crew) maximum rpm is 1,800 per main engine. Vessel (Work) main engines maximum rpm are 1000 rpm, and generators and SDT are 1800 rpm.
[8] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines.
[9] Diesel Recip. < 600 hp.-EPA Tier 1: NOx emission factor for EPA Tier 1 diesel engines. [10] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines. [11] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines.FORM BOEM-139 (October 2011 - Supersedes all previous versions of form BOEM-139 which may not be used). Page 3 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL CONTACT PHONE REMARKS

BHP Billiton Pet. (GOM) Inc. Green Canyon 654 OCS-G 20085 Shenzi Field Sus an Wilson 713 599 6349

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 CO2 PM SOx NOx VOC CO CO2

DRILLING

DP DRILLSHIP 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

PRIME MOVER>600hp diesel [1] [2] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Emergency Generator>600hp diesel 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2-300 HP WIRELINE <600hp diesel-POSU-CA PU Eng. [3] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 WIRELINE <600hp diesel-GSU-W Generator 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 WIRELINE <600hp diesel-Generator DHPS 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING <600hp diesel-Batch Mixer [4] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
CEMENTING <600hp diesel (Nitrogen pump) [5] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 EMERGENCY EQUIP <600hp diesel-Fast Rescue 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6-29HP EMERGENCY EQUIP <600hp diesel-Lifeboat 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 EMERGENCY EQUIP <600hp diesel-Air Compressor 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

3-415 HP SEISMIC OP ENGINE <600hp diesel [8] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

SLICKLINE <600hp diesel [9] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

FLUID FILTRATION PUMP <600hp diesel [10] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING POWER PACK <600hp diesel [11] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING PUMP >600hp diesel [12] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

ECO Crew VESSELS>600hp diesel(crew) (main-4) [13] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

VESSELS<600hp diesel(crew) (gens-3) [13] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Work/Supply VESSELS>600hp diesel(work) (main-2) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2 vessels VESSELS>600hp diesel(work) (gen.-2) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

VESSELS>600hp diesel(work) (SDT) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS<600hp diesel(work) (E-Generator) 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0

INSTALLATION INSTALLATION Vessel >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 0.00 0.00 jumper / flowline SUPPORT VESSEL >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 0.00 0.00

umbilical 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 0.00 0.00

2017 YEAR TOTAL (ANNUAL) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

EXEMPTION

CALCULATION DISTANCE FROM LAND IN MILES 3962.70 3962.70 3962.70 3962.70 82257.76

116

[12] Diesel Recip. > 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [13] Diesel Recip. ≥37kw -Marine Tier 2: VESSELS: EPA Marine Engine Tier 2 for marine engines maunfactured after 2004 with a per cylinder displacement of 1.2 L - >5.0 L. [6] Diesel Recip. > 600 hp.-IMO Tier I (=> 2000 rpm): NOx emission factors for IMO Tier I diesel engines on certain cement unit engines with rated engine rpm is equal to or greater than 2000.
[7] Diesel Recip. > 600 hp.-EPA Marine Tier 1: VESSELS: EPA Marine Engine Tier 1 for NOx: 45.0 x N^(-0.20) g/kW-hr, where N is maximum/rated engine rpm. Vessel (Crew) maximum rpm is 1,800 per main engine. Vessel (Work) main engines maximum rpm are 1000 rpm, and generators and SDT are 1800 rpm.
[8] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines.
[9] Diesel Recip. < 600 hp.-EPA Tier 1: NOx emission factor for EPA Tier 1 diesel engines. [10] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines. [11] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [5] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines on certain cement unit engines. Drill and complete wells with Drillship (Invictus)

[1] PRIME MOVER >600hp diesel-Invictus: TOI's Invictus maximum output per main engine is 9385 hp/7000 kW. These calculations conservatively assume operating 6 of 6 engines.

[2] PRIME MOVER >600 hp. diesel-Invictus: NOx emission factor is based on the TOI Invictus engine manufacturer's data. The main engines on Invictus are IMO Tier II certified engines.
[3] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines on certain wireline and cement unit engines.

[4] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines on certain wireline and cement unit engines.FORM BOEM-139 (October 2011 - Supersedes all previous versions of form BOEM-139 which may not be used). Page 3 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL CONTACT PHONE REMARKS

BHP Billiton Pet. (GOM) Inc. Green Canyon 654 OCS-G 20085 Shenzi Field Sus an Wilson 713 599 6349

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 CO2 PM SOx NOx VOC CO CO2

DRILLING

DP DRILLSHIP 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

PRIME MOVER>600hp diesel [1] [2] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Emergency Generator>600hp diesel 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2-300 HP WIRELINE <600hp diesel-POSU-CA PU Eng. [3] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 WIRELINE <600hp diesel-GSU-W Generator 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 WIRELINE <600hp diesel-Generator DHPS 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING <600hp diesel-Batch Mixer [4] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
CEMENTING <600hp diesel (Nitrogen pump) [5] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 EMERGENCY EQUIP <600hp diesel-Fast Rescue 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6-29HP EMERGENCY EQUIP <600hp diesel-Lifeboat 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 EMERGENCY EQUIP <600hp diesel-Air Compressor 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

3-415 HP SEISMIC OP ENGINE <600hp diesel [8] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

SLICKLINE <600hp diesel [9] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

FLUID FILTRATION PUMP <600hp diesel [10] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING POWER PACK <600hp diesel [11] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING PUMP >600hp diesel [12] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

ECO Crew VESSELS>600hp diesel(crew) (main-4) [13] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

VESSELS<600hp diesel(crew) (gens-3) [13] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Work/Supply VESSELS>600hp diesel(work) (main-2) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2 vessels VESSELS>600hp diesel(work) (gen.-2) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

VESSELS>600hp diesel(work) (SDT) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 VESSELS<600hp diesel(work) (E-Generator) 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

INSTALLATION INSTALLATION Vessel >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 0.00 0.00 jumper / flowline SUPPORT VESSEL >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 0.00 0.00

umbilical 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 0.00 0.00

2018 YEAR TOTAL (ANNUAL) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

EXEMPTION

CALCULATION DISTANCE FROM LAND IN MILES 3862.80 3862.80 3862.80 3862.80 80869.40

116

[12] Diesel Recip. > 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [13] Diesel Recip. ≥37kw -Marine Tier 2: VESSELS: EPA Marine Engine Tier 2 for marine engines maunfactured after 2004 with a per cylinder displacement of 1.2 L - >5.0 L. [6] Diesel Recip. > 600 hp.-IMO Tier I (=> 2000 rpm): NOx emission factors for IMO Tier I diesel engines on certain cement unit engines with rated engine rpm is equal to or greater than 2000.
[7] Diesel Recip. > 600 hp.-EPA Marine Tier 1: VESSELS: EPA Marine Engine Tier 1 for NOx: 45.0 x N^(-0.20) g/kW-hr, where N is maximum/rated engine rpm. Vessel (Crew) maximum rpm is 1,800 per main engine. Vessel (Work) main engines maximum rpm are 1000 rpm, and generators and SDT are 1800 rpm.
[8] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines.
[9] Diesel Recip. < 600 hp.-EPA Tier 1: NOx emission factor for EPA Tier 1 diesel engines. [10] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines. [11] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [5] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines on certain cement unit engines. Drill and complete wells with Drillship (Invictus)

[1] PRIME MOVER >600hp diesel-Invictus: TOI's Invictus maximum output per main engine is 9385 hp/7000 kW. These calculations conservatively assume operating 6 of 6 engines.

[2] PRIME MOVER >600 hp. diesel-Invictus: NOx emission factor is based on the TOI Invictus engine manufacturer's data. The main engines on Invictus are IMO Tier II certified engines.
[3] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines on certain wireline and cement unit engines.

[4] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines on certain wireline and cement unit engines.FORM BOEM-139 (October 2011 - Supersedes all previous versions of form BOEM-139 which may not be used). Page 3 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL CONTACT PHONE REMARKS

BHP Billiton Pet. (GOM) Inc. Green Canyon 654 OCS-G 20085 Shenzi Field Su san Wilson 713 599 6349

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 CO2 PM SOx NOx VOC CO CO2

DRILLING

DP DRILLSHIP 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

PRIME MOVER>600hp diesel [1] [2] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Emergency Generator>600hp diesel 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2-300 HP WIRELINE <600hp diesel-POSU-CA PU Eng. [3] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
WIRELINE <600hp diesel-GSU-W Generator 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
WIRELINE <600hp diesel-Generator DHPS 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING <600hp diesel-Batch Mixer [4] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING <600hp diesel (Nitrogen pump) [5] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

CEMENTING >600hp diesel [6] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
EMERGENCY EQUIP <600hp diesel-Fast Rescue 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6-29HP EMERGENCY EQUIP <600hp diesel-Lifeboat 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
EMERGENCY EQUIP <600hp diesel-Air Compressor 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

3-415 HP SEISMIC OP ENGINE <600hp diesel [8] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

SLICKLINE <600hp diesel [9] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

FLUID FILTRATION PUMP <600hp diesel [10] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING POWER PACK <600hp diesel [11] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

COIL TUBING PUMP >600hp diesel [12] 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

ECO Crew VESSELS>600hp diesel(crew) (main-4) [13] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

VESSELS<600hp diesel(crew) (gens-3) [13] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Work/Supply VESSELS>600hp diesel(work) (main-2) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2 vessels VESSELS>600hp diesel(work) (gen.-2) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

VESSELS>600hp diesel(work) (SDT) [7] 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
VESSELS<600hp diesel(work) (E-Generator) 0 0.00 0.00 0 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

INSTALLATION INSTALLATION Vessel >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 0.00 0.00 jumper / flowline SUPPORT VESSEL >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 0.00 0.00

umbilical 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 0.00 0.00

2019 YEAR TOTAL (ANNUAL) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

EXEMPTION

CALCULATION DISTANCE FROM LAND IN MILES 3862.80 3862.80 3862.80 3862.80 80869.40

116

[12] Diesel Recip. > 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [13] Diesel Recip. ≥37kw -Marine Tier 2: VESSELS: EPA Marine Engine Tier 2 for marine engines maunfactured after 2004 with a per cylinder displacement of 1.2 L - >5.0 L. [6] Diesel Recip. > 600 hp.-IMO Tier I (=> 2000 rpm): NOx emission factors for IMO Tier I diesel engines on certain cement unit engines with rated engine rpm is equal to or greater than 2000.

[7] Diesel Recip. > 600 hp.-EPA Marine Tier 1: VESSELS: EPA Marine Engine Tier 1 for NOx: 45.0 x N^(-0.20) g/kW-hr, where N is maximum/rated engine rpm. Vessel (Crew) maximum rpm is 1,800 per main engine. Vessel (Work) main engines maximum rpm are 1000 rpm, and generators and SDT are 1800 rpm.
[8] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines.

[9] Diesel Recip. < 600 hp.-EPA Tier 1: NOx emission factor for EPA Tier 1 diesel engines. [10] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines. [11] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines. [5] Diesel Recip. < 600 hp.-EPA Tier 1: PM, NOx, VOC and CO emission factors for EPA Tier 1 diesel engines on certain cement unit engines. Drill and complete wells with Drillship (Invictus)

[1] PRIME MOVER >600hp diesel-Invictus: TOI's Invictus maximum output per main engine is 9385 hp/7000 kW. These calculations conservatively assume operating 6 of 6 engines.

[2] PRIME MOVER >600 hp. diesel-Invictus: NOx emission factor is based on the TOI Invictus engine manufacturer's data. The main engines on Invictus are IMO Tier II certified engines.
[3] Diesel Recip. < 600 hp.-EPA Tier 3: PM, NOx, and CO emission factors for EPA Tier 3 diesel engines on certain wireline and cement unit engines.

[4] Diesel Recip. < 600 hp.-EPA Tier 2: PM, NOx, and CO emission factors for EPA Tier 2 diesel engines on certain wireline and cement unit engines.

### SUMMARY

FORM BOEM-139 (October 2011 - Supersedes all previous versions of form BOEM-139 which may not be used). 

### Page 8 of 8 COMPANY AREA BLOCK LEASE PLATFORM WELL

BHP Billiton Pet. (GOM) Inc. Green Canyon 654 OCS-G 20085 Shenzi Field H-I



### Emitted Substance

Year

PM SOx NOx VOC CO

2015 86.22 1.38 2071.18 106.24 734.09

Allowable 3862.80 3862.80 3862.80 3862.80 80869.40

## Page 1 of 15 SPILL RESPONSE DISCUSSION

For the purpose of NEPA and Coastal Zone Mana gement Act analysis, the largest spill volume originating from the proposed activity would be a well bl owout during drilling operations,
estimated to be 131,116 barrels of crude oil with an API gravity of 32.1°.

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 BS EE Oil Spill Risk Analysis Model (OSRAM) for the Central and

Western Gulf of Mexico available on the BSEE website. The results are shown in Figure 1. The BSEE OSRAM identifies a 3% probabil ity of impact to the shorelin es of Cameron Parish and/or Plaquemines Parish, Louisiana within 30 days. Ca meron Parish includes the east side of Sabine Lake, Sabine National Wildlife Refuge, Calcasieu Lake, Lacassine National Wildlife Refuge
(inland) and Grand Lake. Cameron Parish also includes the area along the coastline from Sabine Pass to Big Constance Lake in Rockefeller Wildlif e Refuge. This region is composed of open public beaches, marshlands and swamps. It serv es as a habitat for numer ous birds, finfish and other animals, including several rare, threaten ed and endangered species. Plaquemines Parish includes Barataria Bay, the Mississippi River De lta, Breton Sound and the affiliated islands and bays. This region is an extremely sensitive ha bitat and serves as a mi gratory, breeding, feeding and nursery habitat for numerous species of wildlife . Beaches in this area vary in grain particle
size and can be classified as fine sand, shell or perched shell beaches. Sandy and muddy tidal

flats are also abundant.

Response BHP Billiton Petroleum (GOM) Inc. will make ev ery effort to respond to the Worst Case Discharge as effectively as practicable. A desc ription of the response eq uipment under contract

to contain and recover the Wors t Case Discharge is shown in Figure 2.

Using the estimated chemical and physical charact eristics of crude oil, an ADIOS weathering model was run on a similar product from the ADIO S oil database. The results indicate 19% or approximately 24,912 barrels of crude oil would be evaporated/dispersed w ithin 24 hours, with approximately 106,204 barrels remaining.

Spill Response GC 653, Well SB101 Barrels of Oil

WCD Volume 131,116

Less 19% natural evaporation/dispersion 24,912

Remaining volume 106,204



## Figure 2 outlines equipment, personnel, materials and support vessels as well as temporary storage equipment available to respond to a sp ill of approximately 106,204 barrels. The volume accounts for the amount remaining after evaporatio n/dispersion at 24 hours. The list estimates individual times needed for proc urement, load out, travel time to the site and deployment. Figure

2 also indicates how operations will be supported.

BHP Billiton Petroleum (GOM) Inc.’s Oil Spill Response Plan includes alternative response technologies such as dispersants and in-situ burn. Strategies will be decided by Unified

## Page 2 of 15 Command based on the size of the spill, weather and potential impacts. If aerial dispersants are utilized, 8 sorties (9,600 gallons) from two of the DC-3 aircrafts and 4 sorties (8,000 gallons) from the Basler aircraft would provide a dail y dispersant capability of 7,540 barrels. If the conditions are favorable for in-situ burning, the proper approvals have been obtained and the proper planning is in place, in-situ burning of oil may be attempted. Slick containment boom would be immediately called out and on-scene as soon as possible. Offshore response strategies may include attempting to skim utilizing the HOSS Barge, nine Fast Response Units (FRUs), and eleven sets of Koseq skimming arms, with a to tal derated skimming capacity of 277,378 barrels. Temporary storage associated with skimming equipment equals 27,700 barrels. If additional storage is needed, three 23,000 ba rrel storage barges, one 20,000 barrel storage barge, one 80,000 barrel storage barge, and one 83,937 barrel stor age barge may be mob ilized and centrally located to provide temporary storage allowing the sk immers 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 Cameron and/or Plaquemines Parish, Louisiana would depend upon existing environmental conditions. Shoreline protection would include the

use of CGA’s near shore and shallow water ski mmers with a totaled derated skimming capacity of 74,126 barrels. Temporary storage associated w ith skimming equipment equals 1,353 barrels. If additional storage is needed, two 20,000 barr el storage barges and one 47,000 barrel storage barge may be mobilized and centrally located to provide temporary storage allowing the skimmers to stay in the area of operations as much as possibl e. Onshore response may include the deployment of shoreline boom on beach areas, or protection and sorbent boom on vegetated

areas. A Master Services Contract with ES &H will ensure access to 211,000 feet of 18” shoreline protection boom. Figure 2 outlines individual times needed for procurement, load out, travel time to the site and deployment. Stra tegies would be based upon surveillance and real time trajectories that depict areas of potentia l impact given actual se a and weather conditions. The State of Louisiana Initial Oil Spill Response Plans for Cameron Parish and Plaquemines

Parish and Unified Command woul d be consulted to ensure th at environmental and special

economic resources would be corre ctly identified and pr ioritized to ensure optimal protection. Shoreline protection strategies depict the protec tion response modes appli cable for oil spill cleanup operations. The State of Louisi ana Initial Oil Spill Response Pl an provides detailed shoreline protection strategies for this ar ea, and it describes necessary acti on to keep the oil spill from entering Louisiana’s coastal wetlan ds, based on the assumption that removal of the released oil will be much easier and less damaging to fragile coas tal ecosystems if done in the open waters of the Gulf of Mexico. Supervisory personnel have the option to modify the deployment and operation of equipment allowing a more effective response to site-specific circumstances. BHP Billiton Petroleum (GOM) Inc.’s contract Spill Management Team holds a copy of the State of

Louisiana Initial Oil Spill Response Plan.

Based on the anticipated worst case discharge sc enario, BHP Billiton Petroleum (GOM) Inc. can be onsite with contracted oil spill recovery equi pment with adequate response capacity to contain and recover surface hydrocarbons, and prevent land impact, to the maximum extent practicable, within an estimated 77 hours (based on the equi pment’s Effective Daily Recovery Capacity
(EDRC)).

## Page 3 of 15 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

• Ocean 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

BHP Billiton Petroleum (GOM) Inc. 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 supe rvised by the designation of a SIMOPS group as necessary for close quarter vessel response activitie s. Most often, this gr oup will be used during source control events that require a significant nu mber of large vessels operating independently, but in coordination to complete a common objec tive, in a small area and in close coordination and support of each other. This group must also monitor the subsurface activ ities of each vessel (ROV, dispersant application, well control sup port, etc.). The SIMOPS group leader reports to

the Source Control Section Chief.

In addition, these activities will be monitored by the spill mana gement team (SMT) and Unified

Command via a structured Common Operating Picture (COP) esta blished to track resource and

slick movement in real time.

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

• Information will be confirmed

• An assessment will be made and initial objectives set

• OSROs and appropriate agen cies will be notified

• ICS 201, Initial Report Form will be completed

• Initial Safety plan will be written and published

• Unified Command will be established

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

o Areas of responsibility esta blished for Source Control a nd each surface operational

site

o On-site command and control established

## Page 4 of 15 Decanting Strategy Recovered oil and water mixtures will typically se parate 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 minima l, if any, impact. Decan ting therefore increases the effective on-site oil storage capacity a nd 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 Qu alified Individual (QI) notification, or at first light

• Provide trained observer to pr ovide on site status reports

• Provide command and control platfo rm at the site if needed

• 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 Airborne Support Inc. (ASI) on standby

• 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, ai rcraft, and support equipment and personnel

• Confirm dispersant availability fo r current and long range operations

• Start ordering dispersa nt 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 Opportunity (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 aer ial dispersant and in-situ burn operations

## Page 5 of 15 CGA HOSS Barge

• Use in areas with heaviest 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 optimum deck space

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

Storage Vessels

• Establish availability of CGA contracted assets

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

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

systems

• Position as closely as possible to ski mming assets to minimize offloading time

Vessels of Opportunity (VOO)

• Use BHP Billiton Petroleum (GOM) Inc.’s contracted resources as applicable

• Industry vessels are 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 sa fety training to be required

• Plan with the US Coast Guard for vessel inspections

In-situ Burn assets

• Determine appropriateness of in-situ burn ope ration in coordination with the FOSC and
affected State On-Scene Coordinator (SOSC)

• Determine availability of fire boom and selected ignition systems

• Start ordering fire 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 Weather 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.

## Page 6 of 15 Near Shore Response Actions

Timing

• Place near shore assets on standby and depl oy in accordance with planning based on the actual situation, actual traj ectories 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

• Shoreline 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 Re sponse Team level (Region 6)

Vessel Deployment Dedicated Near Shore skimming systems

• Fast Response Vessels (FRV)

• Egmopol and Marco Shallow Water Skimmer (SWS)

• Operate with aerial spotter directi ng systems to observed oil slicks

VOO

• Use BHP Billiton Petroleum (GOM) Inc.’s contracted resources as applicable

• Industry vessels are 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 sa fety training to be required

• Plan with the US Coast Guard for vessel inspections

• Operate with aerial spot ter directing systems to oil patches

## Page 7 of 15 Shoreline Protection Operations

Response Planning Considerations

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

• Time to acquire personnel and eq uipment and their availability

• Previous contingency planning contained in the appropriate Area Contingency Plan, and currently for Louisiana, The State of Loui siana 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 timing of beach cleaning

• Shoreline Cleanup and Assessment Team Reports and recommendations

• Determination of Archeological site s 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 tide lines to minimize waste

• Staging of equipment and housing of respons e personnel as close to the job site as possible to maximize on-site work time

• Boom tending, repair, replacement and security (u se of local assets may be advantageous)

• Constant awareness of weather and oil moveme nt for resource redeployment as necessary

• In-situ burn may be considered when marshes have been impacted

• Passive clean up of marshes should be consider ed and appropriate stoc ks of sorbent boom and/or sweep obtained

• Earthen berms and shoreline protection boom may be considered to protect sensitive

inland areas

## Page 8 of 15 Decanting Strategy Recovered oil and water mixtures will typically se parate 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 minima l, if any, impact. Decan ting therefore increases the effective on-site oil storage capacity a nd 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 conditions will be directly in rela tion 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 a nd/or the Captain of the vessel, who will ultimately have the 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 opera tions ceased when seas reache d 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 knots 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

## Page 9 of 15 Environmental Conditions in the GOM Louisiana is situated between the easterly and westerly wind belts, and therefore, experiences westerly winds during the wint er and easterly winds in the summer. Average wind speed is generally 14-15 mph along the coast. Wave he ights 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 temperatur e will range from 50 and 60  ̊ F.

The Atlantic and Gulf of Mexico hurricane seas on is officially from 1 June to 30 November. 97% of all tropical activity occurs within this window. The Atlant ic 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 occurri ng then. Maximum activity is in early to mid September. Once in a few years there may be a hurri cane occurring "out of season" - primarily in May or December. Globally, September is the mo st active month and May is the least active

month.

## Page 10 of 15 FIGURE 1

TRAJECTORY BY LAND SEGMENT

Trajectory of a spill and the probability of it impacting a land segment have been projected utilizing BHP Billiton Petroleum (GOM) Inc.’s WCD and information in the BSEE Oil Spill Risk Analysis Model (OSRAM) for th e Central and Western Gulf of Mexico available on the BSEE website using 30 day im pact. The results are tabulated below.

Area/Block OCS-G Launch

Area Land Segment and/or

Resource Conditional Probability (%) within 30 days

GC 653, Well SB101

120 miles from shore G20084 C46 Matagorda County, TX Brazoria County, TX Galveston County, TX Jefferson County, TX Cameron Parish, LA
Vermilion Parish, LA
Terrebonne Parish, LA
Lafourche Parish, LA Plaquemines Parish, LA 1

1

2

1

3

1

1

1

3Page 11 of 15WCD Scenario– BASED ON WELL BLOWOUT DURING DRILLING OPERATIONS(120 miles from shore)106,204 bbls of crude oil (Volume considering natural weathering)API Gravity 32.1°FIGURE 2 – Equipment ResponseTime to GC 653, Well SB101Dispersants/SurveillanceDispersant/SurveillanceDispersantCapacity (gal)StorageCapacityPersons Req.FromHrs toProcureHrs toLoadoutTravel to siteTotal HrsCGABasler 67T2000 NA2Houma1 10.8 2.8ASIDC 31200 NA2Houma1 11.1 3.1DC 31200 NA2Houma1 11.1 3.1Aero CommanderNA NA2Houma1 10.8 2.8Offshore ResponseOffshore Equipment NoStagingEDRCStorageCapacityVOOPersonsRequiredFromHrs toProcureHrs toLoadoutHrs toGOMTravel toSpill SiteHrs toDeployTotalHrsCGAHOSS Barge43000 4000 3 Tugs 5Harvey 7 0 5 15 1 28Boom Barge (CGA-300)42” Auto Boom (25000’)NA NA1 Tug50 Crew4 (Barge)2 (Per Crew)Leeville 4 0 6 18.6 1.5 30.1T&T Marine (available through contract with CGA)Koseq Skimming Arms (5) 89145 10000 5 Utility 30 Galveston 24 24 1 25.8 2 76.8Koseq Skimming Arms (3) 53487 6000 3 Utility 18 Leeville 24 24 2 10.4 2 62.4Koseq Skimming Arms (1) 17829 2000 1 Utility 6 Fourchon 24 24 1 10.4 2 61.4Koseq Skimming Arms (2) 35658 4000 2 Utility 12 Venice 24 24 2 9.6 2 61.6Recovered Oil Storage NoStagingEDRCStorageCapacityVOOPersonsRequiredFromHrs toProcureHrs toLoadoutHrs to GOMTravel toSpill SiteHrs toDeployTotalHrsEnterprise Marine Services LLC (available through contract with CGA)CTCo 2606NA 20000 1 Tug 6Amelia4 12419.38 1 40.38CTCo 2607NA 23000 1 Tug 6Amelia4 12419.38 1 40.38CTCo 2608NA 23000 1 Tug 6Amelia4 12419.38 1 40.38CTCo 2609NA 23000 1 Tug 6Amelia4 12419.38 1 40.38K-Sea Operating (available through contract with CGA)PACIFIC 996165NA 80000 1 Tug 6Venice4 12214.38 1 33.38DBL 76 1212984NA 83937 1 Tug 6Venice4 12214.38 1 33.38Page 12 of 15Staging Area: VeniceOffshore Equipment WithStagingEDRCStorageCapacityVOOPersonsReq.FromHrs toProcureHrs toLoadoutTravel toStagingTravel toSiteHrs toDeployTotalHrsCGAFRU (1) + 100 bbl Tank (2) 4251 200 1 Utility 6 Galveston 1 2 89.6 1 21.6FRU (1) + 100 bbl Tank (1) 4251 100 1 Utility 6Harvey1 2 1.75 9.6 1 15.3FRU (1) + 100 bbl Tank (2) 4251 200 1 Utility 6 Ingleside 1 2 11 9.6 1 24.6FRU (1) + 100 bbl Tank (2) 4251 200 1 Utility 6 Lake Charles 1 2 5.5 9.6 1 19.1FRU (2) + 100 bbl Tank (2) 8502 400 2 Utility 12 Leeville1 2 3.5 9.6 1 17.1FRU (1) + 100 bbl Tank (2) 4251 200 1 Utility 6 Morgan City 1 2 3.25 9.6 1 16.8FRU (2) + 100 bbl Tank (4) 8502 400 2 Utility 12Venice1 2 09.6 1 13.6Hydro-Fire BoomNA NA 8 Utility40 Harvey 1 4 1.75 9.6 6 22.3Page 13 of 15Nearshore ResponseNearshore Equipment NoStagingEDRCStorageCapacity (bbl)VOOPersonsRequiredFromHrs toProcureHrs toLoadoutHrs toGOMTravel toSpill SiteHrs toDeployTotalHrsCGA46’ FRV5000 65 NA 4 Leeville 1 0 2 2 0 546’ FRV5000 65 NA 4 Venice 1 0 1 2 0 4Trinity SWS21500 249 NA 4 Leeville 1 2 220 7Trinity SWS21500 249 NA 4 Venice 1 2 220 7Enterprise Marine Services LLC (available through contract with CGA)CTCo 2604NA 20000 1 Tug 6 Amelia 4 12 4 19.38 1 40.38CTCo 2605NA 20000 1 Tug 6 Amelia 4 12 4 19.38 1 40.38CTCo 5001NA 47000 1 Tug 6 Amelia 4 12 4 19.38 1 40.38Staging Area: VeniceNearshore and Inland SkimmersWith StagingEDRCStorageCapacityVOOPersonsReq.FromHrs toProcureHrs toLoadoutTravel toStagingTravel toDeploymentHrs toDeployTotalHrsSWS Egmopol3000 100 NA 3 Galveston 1 2820 13SWS Egmopol3000 100 NA 3 Morgan City 1 2 3.2520 8.25SWS Marco3588 20 NA 3 Lake Charles 1 2 5.520 10.5SWS Marco3588 34 NA 3 Leeville 1 2 3.520 8.5SWS Marco3588 34 NA 3 Venice 1 2020 5Rope Mop77 2 0 3 Harvey 1 2820 13Foilex Skim Package (TDS 150) 891 45 NA 3 Lake Charles 1 2 5.520 8Foilex Skim Package (TDS 150) 891 45 NA 3 Galveston 1 2820 8Foilex Skim Package (TDS 150) 891 45 NA 3 Harvey 1 2 1.7520 114 Drum Skimmer (Magnum 100) 686 100 1 Crew 3 Lake Charles 1 2 5.520 84 Drum Skimmer (Magnum 100) 686 100 1 Crew 3 Harvey 1 2 1.7520 112 Drum Skimmer (TDS 118) 240 100 1 Crew 3 Lake Charles 1 2 5.520 8Page 14 of 15Shoreline ProtectionStaging Area: VeniceShoreline Protection BoomVOOPersonsReq.Storage/WarehouseLocationHrs toProcureHrs toLoadoutTravel toStagingTravel toDeploymentHrs toDeployTotal HrsES&H (available through MSA)50,000’ 18” Shoreline Boom 20 Crew 50Houston, TX .5 .5 7.5 2 15 25.550,000’ 18” Shoreline Boom 20 Crew 50 Lake Charles, LA .5 .5 5.5 2 15 23.520,000’ 18” Shoreline Boom 8 Crew 20 New Iberia, LA .5 .5426131,000’ 18” Shoreline Boom 2 Crew 6 Morgan City, LA .5 .5 3.25217.2520,000’ 18” Shoreline Boom 8 Crew 20 Belle Chasse, LA .5 .51.52610.515,000’ 18” Shoreline Boom 6 Crew 14Mobile, AL.5 .5 4.252411.255,000’ 18” Shoreline Boom 2 Crew 6 Dallas Ft. Worth, TX .5 .5 10.25 2 2 15.2550,000’ 18” Shoreline Boom 20 Crew50 Houma, LA .5 .5 3 2 15 21Beach BoomEDRCStorageCapacityVOOPersonsReq.FromHrs toProcureHrs toLoadoutTravel toStagingTravel toDeploymentHrs toDeployTotal HrsCGABeach Boom (2000’)NA NA NA 6 Galveston 1 281214Beach Boom (1000’)NA NA NA 4 Ingleside 1 2111217Beach Boom (2000’)NA NA NA 6 Pascagoula 1 241210Page 15 of 15Wildlife ResponseEDRCStorageCapacityVOOPersonsReq.FromHrs toProcureHrs toLoadoutTravel toStagingTravel toDeploymentHrs toDeployTotal HrsCGAWildlife Support Trailer NA NA NA 2Houma1 23129Bird Scare Guns (24)NA NA NA 2 Belle Chasse 1 21.5127.5Bird Scare Guns (12)NA NA NA 2 Galveston 1 281214Bird Scare Guns (24)NA NA NA 2Houma1 23129Bird Scare Guns (12)NA NA NA 2 Ingleside 1 2111217Bird Scare Guns (24)NA NA NA 2 Lake Charles 1 25.51211.5Bird Scare Guns (24)NA NA NA 2 Pascagoula 1 241210Response AssetTotalOffshore EDRC277,378Offshore Recovered Oil Storage280,637Nearshore / Shallow Water EDRC74,126Nearshore / Shallow Water Recovered Oil Storage 88,353Worst Case Discharge ModelingShenzi H-I