6833.0 34000.0 6833.0 34200.0 6833.0 34400.0 Line: T race: 10000 15000 20000 25000 30000 35000 1.300 1.400 1.500 1.600 1.700 1.800 1.900 2.000 2.100 2.200 2.300 2.400 2.500 2.600 2.700 Horizontal Distance (ft):

6600.0 34195.0 6800.0 34195.0 7000.0 34195.0 Line: T race: 15000 20000 25000 30000 35000 40000 1.300 1.400 1.500 1.600 1.700 1.800 1.900 2.000 2.100 2.200 2.300 2.400 2.500 2.600 2.700 Horizontal Distance (ft): Project No. 041 1-1924 Filename: 1 1 1924_fig_GC867-D-1.cdr



## Figure GC 867-D-1. Inline 6833 and Crossline 34195 Showing Conditions Beneath Proposed W ellsite GC 867-D 15034.839 14132.748 13230.658 12328.568 1 1426.478 10524.387 9622.297 8720.207 7818.1 16 6916.026 6013.936 51 1 1.845 4209.755 3307.665 2405.574 1503.484 601.394 -300.697 -1202.787 -2104.877 -3006.968 -3909.058 -481 1.148 -5713.239 -6615.329 -7517.419 -8419.510 -9321.600 -10223.690 -1 1 125.781 -12027.871 -12929.961 -13832.052 -15034.839RELATIVEAMPLITUDETWO-WAYTIMETRAVEL(SEC)TWO-WAYTIMETRAVEL(SEC) 

### GC 823 GC 867 Northwest Southeast

Inline 6833 SAL T

SAL T GC 824 Southwest Northeast SEAFLOOR 

### HORIZON 20 HORIZON 35 

### UNIT 1 UNIT 2 UNIT 3



### SEAFLOOR HORIZON 20 HORIZON 35 HORIZON 40 T OP OF SAL T 

### UNIT 1

UNIT 3 UNIT 4

Crossline 34195 Proposed W ellsite GC 867-D

Proposed W ellsite GC 867-D

GC 866 GC

822

T OP OF SAL T



### UNIT 2 GC 778

GC 822 GC 8236800.0 34195.0 Line: T race: 20000 25000 30000 1.500

1.600

1.700

1.800

1.900

2.000

2.100

2.200

2.300

2.400

2.500

2.600 Horizontal Distance (ft): Shallow W ater Flow and Gas Potential HIGH 0 1 2 3 0 = NEGLIGIBLE 1 = LOW 2 = MODERA

TE 3 = HIGH NEGLIGIBLE



## Figure GC 867-D-2. T

ophole Prognosis Chart, Proposed W ellsite D, Green Canyon Block 867 Filename: 1 1 1924_fig_GC867-D-2.cdr Project No. 041 1-1924 3-D Seismic Section Through Proposed W ellsite D X = 2,473,150 FT; Y

= 9,856,232 FT Crossline 34195 at Inline 6833 

### NW SE

Crossline 34195 GC 823 

### PROPOSED WELLSITE DTWO-WAYTRAVELTIME (SEC) GC 867

SEAFLOOR W ater Flow Gas

HORIZON 20

T OP OF SAL TUnit 2 1.609

1.656

1.980 -3,944 -4,068

-4,965 124

1,021 124

543 Seafloor Slopes at 5.3° East-Southeast.

Lithology/Stratigraphy W A TER FLOW AND GAS POTENTIAL Horizon Horizon TWT (sec, bsl) Depth

(ft, bsl) Depth (ft, bml)Units Unit

(Interval) Thickness (ft)Unit 3 Potential Drilling Constraints

HORIZON 35 1.787 -4,422 478 354 V ery soft, pelagic drape at seafloor . Hemipelagic silty clays and thin mass-transport deposits. Alternating layers of hemipelagic silty clays with chaotic mass-transport deposits. Fault near base of unit.

Chaotic sequence created by salt movement. Mixture of silts and clays. Negligible potential for overpressured sands. Negligible potential for shallow gas.

Moderate potential for overpressured sands. Low potential for shallow gas.

SAL T T op of salt Slopes at 43° to Northeast. GC 822Unit 1 Negligible potential for overpressured sands. Negligible potential for shallow gas. Faults are possible zones of loss circulation. F AUL T -4,280 336

1.735

F AUL T -4,681 737

1.880 INTERF ACE -4,820 876

1.929 Mud-rich turbidites. Fault near base of interval. 1.856 -4,613 669 Chaotic mass-transport. Low potential for overpressured sands. Low potential for shallow gas.
Faults are possible zones of loss circulation. Low potential for overpressured sands. Low potential for shallow gas.

TROUGH PEAK RELA TIVE AMPLITUDE

## Apache Deepwater LLC Page D-1 Joint Initial Exploration Plan June, 2011 Green Canyon Blocks 823 and 827 (OCS-G 33854 and OCS-G 33858) 

# APPENDIX D HYDROGEN SULFID E INFORMATION (A) CONCENTRATION Apache Deepwater LLC does not anticipate encountering any H 2 

## S during the proposed operations. (B) CLASSIFICATION In accordance with Title 30 CFR 250.490(c), Apach e Deepwater requests that Green Canyon Blocks 823 and 867 be classified by the BOEMRE as H 2 

## S absent.

## Apache Deepwater LLC Page E-1 Joint Initial Exploration Plan June, 2011 Green Canyon Blocks 823 and 827 (OCS-G 33854 and OCS-G 33858) APPENDIX E BIOLOGICAL, PHYSICAL AND SO CIOECONOMIC INFORMATION (a) DEEPWATER BENTHIC COMMUNITIES Activities proposed in this EP will disturb seafloor areas in water depths of 300 meters (984 feet) or greater; therefore, information as ou tlined in Attachment A of NTL No. 2009-G40, "Deepwater Benthic Communities", is provided belo w. Apache Deepwater will avoid all highdensity deepwater benthic comm unities by 2,000 feet from e ach proposed mud and cuttings discharge location and 250 feet from the location of a ll other seafloor disturbances. MAPS Included as Attachment E-1 are maps prepared using 3-D seis mic data depicting seafloor and shallow geological features and areas, and the surface locations of the proposed wells with a radius circle of 2000 feet around ea ch well. Also included on the maps is the maximum anchor radius for each well, plus the additional 1,000 foot buffer area beyond the proposed maximum anchor radius. ANALYSIS Green Canyon Block 823 Well Locations A, B, and C and Green Canyon Block 867 Well Locations A, B, C and D: Using 3-D seismic in formation, all seafloor f eatures and areas that could be disturbed by th e activities proposed in this plan have been identified. The likelihood of these proposed activities disturbing these seafloor and shallow geologic feat ures is discussed in the following summary: Features or areas that could support high-density deepwater benthic comm unities are not located within 2000 feet of any proposed muds and cuttings discharge loca tion. Mud mounds and patches of high amplitude seafloor returns ex ist in Green Canyon Blocks 823 and 867, and have a high potential for deepwater benthi c communities; therefore, all s eafloor disturbances (chains, anchors, etc.) will avoid these features by at least 250 feet. (B) TOPOGRAPHIC FEATURES MAP Activities proposed in this EP do not fall with in 305 meters (1000 feet) of a topographic “no activity zone”. (C) TOPOGRAPHIC FEATURES STATEMENT (SHUNTING) All activities proposed under this EP will be conducted outside all Topographic Feature Protective Zones, therefore s hunting of drill cuttings and dr illing fluids is not required (D) LIVE BOTTOMS (PINNACLE TREND) MAP Green Canyon Blocks 823 and 867 are not located w ithin 61 meters (200 feet) of any pinnacle trend feature; therefore a separate bathymetric map is not required.

## Apache Deepwater LLC Page E-2 Joint Initial Exploration Plan June, 2011 Green Canyon Blocks 823 and 827 (OCS-G 33854 and OCS-G 33858) (E) LIVE BOTTOMS (LOW RELIEF) STIPULATION Green Canyon Blocks 823 and 867 are not located w ithin 100 feet of any pinnacle trend feature with vertical relief equal to or greater than 8 fe et; therefore, live bottom (low relief) maps are not required. (F) POTENTIALLY SENSITIV E BIOLOGICAL FEATURES Green Canyon Blocks 823 and 867 ar e not located within 30 mete rs (100 feet) of potentially sensitive biological features; th erefore, biologically sensitiv e area maps are not required. (G) REMOTELY OPERATED VEHICLE (ROV) SURVEYS BOEMRE has determined that there is enough data ga thered in this grid area, therefore, we will not be conducting any ROV surveys either pre-spudding or post-d rilling operations. (H)THREATENED AND ENDANG ERED SPECIES, CRITICAL HABITAT, AND MARINE MAMMAL INFORMATION Under Section 7 of the Endangered Species Act (ESA) all federal ag encies must ensure that any actions they authorize, fund, or carry out are not li kely to jeopardize the continued existence of a listed species, or destroy or adversely modify its designated critical habitat. In accordance with the 30 CFR 250, Subpart B, effective May 14, 2007, and further outlined in Notice to Lessees (NTL) 2008-G04, lessees/operators are require d to address site-specific information on the presence of federally listed threatened or endangere d species and critical habitat designated under the ESA and marine ma mmals protected under the Marine Mammal Protection Act (MMPA) in the area of proposes activities under this plan. NOAA Fisheries currently lists the Sperm Whale, Leatherback Turtle, Green Turtle, Hawksbill Turtle, and the Kemp’s Ridley Turtle as en dangered and the Loggerhead Turtle and Gulf Sturgeon as threatened. Currently there are no de signated critical habitats for the listed species in the Gulf of Mexico Outer Continental Shelf, how ever, it is possible that one or more of these species could be seen in the area of our operations. (I) ARCHAEOLOGICAL REPORT Green Canyon Blocks 823 and 867 are not located in an area determined to have any historic or prehistoric cultural resources.