-5800

-5700

-5800

-5800

-5900

-5900

-5900

-5800

-5700

-5700

-5800

-5800

-5900

-5800

-5800

-5800

-5800

-5800

-5900 C 

WR7 G31932 Shell Offshore Inc. WR8 G33958 Shell Offshore Inc. 

WR95 G31943 Shell Offshore Inc. WR96 G25234 Shell Offshore Inc. WR51 G31938 ConocoPhillips Company WR52 G25232 ConocoPhillips Company C D 

5,000 ft Radius Anchor Chart D Prepared for: Anadarko Petroleum Corporation Geodetic Information Location Map INTERPRETATION: B. Monsalve, Z. Zhang GIS/CAD: B. Dillard DATE: 3/4/2011 REPORT NO: 4026-ANA-GOM FILE: 4064_Anchor_Chart_WR51_D_12.dwg SPHEROID: Clarke 1866 INVERSE FLATTENING: 1/294.978698 SEMIMAJOR AXIS: 6,378,206.40 ft SCALE FACTOR: 0.9996 PROJECTION: Transverse Mercator CENTRAL MERIDIAN: : DATUM: NAD27 LATITUDE OF ORIGIN:  ZONE: UTM Zone 15 North FALSE EASTING: 1,640,416.666667 ft LINEAR UNITS: Survey Feet FALSE NORTHING: 0 ft

1
 1 : : : : : : : : : : : : : : : : : : : : : : : : 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Amery Terrace East Breaks Garden Banks Green Canyon Atwater Valley Destin Dome Mississippi Canyon De Soto Canyon Lloyd Ridge Henderson Florida Plain Lund Lund South Keathley Canyon Walker Ridge Alaminos Canyon Sigsbee Escarpment Texas Louisiana Mississippi AlabamaFlorida Brownsville Corpus Christi Port Lavaca Freeport Galveston Houston The Woodlands Port Arthur Lake Charles Lafayette Morgan City New Orleans Biloxi Pascagula Mobile Pensacola Houma 0 25 50 100 Nautical Miles West Cameron West Cameron West West Cameron South West Delta Grand Isle Eugene Island

TR 2980

TR 3010

TR 3040

TR 3070

TR 3100

TR 3130

TR 3160

TR 3190

TR 3220

TR 3250

TR 3280

TR 3310

TR 3340

TR 3370

TR 3400

TR 3430

TR 3460

TR 3490

TR 3520 

E 2,100,000

E 2,105,000

E 2,110,000

E 2,115,000

E 2,100,000

E 2,105,000

E 2,110,000

E 2,115,000 

N 9,760,000 N 9,765,000 N 9,770,000

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:


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1


1


1


TR 2950

TR 2950

TR 2980

TR 3010

TR 3040

TR 3070

TR 3100

TR 3130

TR 3160

TR 3190

TR 3220

TR 3250

TR 3280

TR 3310

TR 3340

TR 3370

TR 3400

TR 3430

TR 3460

TR 3490

TR 3520 LN 31000 LN 31100 LN 31200 LN 31300 LN 31400 LN 31500 LN 31600 LN 31700 LN 31800 LN 31900 LN 32000 LN 32100 LN 32200 LN 32300 LN 32400 

N 9,775,000

E 2,095,000 E 2,095,000

:


:
 1:12,000 Feet Water Depth & Seafloor Features Showing Potential Anchor Touchdown Area for Proposed WR51 Well D 0 500 1000 2000 3000 4000 5000 LN 32500 LN 32600 LN 32700 

N 9,780,000 Southern WR7, Southern WR8, North-Central WR51, North-Central WR52 Walker Ridge (WR) Gulf of Mexico Interpretive Information Basemap Information WR51D Proposed Well Surface Location and Designation LN 31555 TR 3300 3D Seismic Survey Line, Trace, and Designation (LN=Line) (TR=Trace) Lease Block Boundary: Block Number, Lease Number with Operator and Primary Lease Holder shown WR51 1RWHV/LQHVKDYHDQD]LPXWKRI7UDFHVKDYHDQD]LPXWKRI'DWD6SDFLQJ for 3D seismic survey: Line 65.62 ft, Trace 41.01 ft. Line numbering increment is 5, Trace numbering increment is 1. Locations of every 20th Line and every 30th Trace are shown 2. Infrastructure information primarily from BOEMRE database, these data, and AOA database updated as of February 2011. Lowest Contour of Local Depression Fault with seafloor expression. Symbol shows downthrown side and direction of fault dip -6000 Water Depth Contours, 20 ft interval: Intermediate Contour Water Depth Contours: Index Contour Fracture zone with valleys, ridges, and steep slopes Faulted zones with grabens Interpreted fluid expusion structure, possible hydrocarbon seep and deepwater benthic communities Approximate Maximum Anchor Radius - 13,000 ft Approximate Touchdown Point - 5,000 ft 1,000 ft buffer beyond approximate maximum anchor radius A 2,000 ft radius circle around well surface location is shown as required by Notice to Lessees 2009-G40 Existing Well Location and Designation 001 

LN 30900 LN 30800 LN 30700

N 9,755,000 Grid North 2500 Tanglewilde, Suite 120 Houston, TX 77063 (713) 532-2624
 

D 

HYDROGEN SULFIDE INFORMATION 

Discussions regarding geologic information are considered proprietary and have been 

omitted from this public copy of the EP. 

Anadarko requests that the Walker Ridge Block 51 area be classified as a “zone where the absence 

of H2S has been confirmed” pursuant to 30 CFR 250.67(c), and as denoted under the approved Plan 

Control No: S-7513.