Serial Register Page Page 1 of 16 Serial Register Page Your search returned 1 entries. Current page number: 1 OCS- 00310 Current Status UNIT Central Gulf of Mexico Bonus Bid .000 Sale# Initial Acreage 114601.000000 Sale Date Current Acreage 114601.000000 Per Acre Amt. .00 Royalty Rate 12.5000000 Rental 3.00 Original Lessee(s): SEE LEASE FILE Description: All of Block 240, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. That portion of Block 241, South Marsh Island Area, North Addition, OCS Leasing Map, Lousiana Map No. 3D, specifically described as follows: LINE/INTERSECTIONS X Y 1823327.103 216633.887 1824478.762 216633.887 1824478.762 231391.937 1809720.712 221269.695 1809720.712 231391.937 1809720.712 221269.695 1 2 3 4 5 6 TANGENT/ARC CENTERS X Y 1-2 1834019.000 270301.000 That portion of Block 242, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, specifically described as follows: LINE/INTERSECTIONS X Y 1794962.662 230450.000 1804097.050 224484.490 1809720.712 221269.695 1809720.712 231391.937 1794962.662 231391.937 1794962.662 230450.000 1 2 3 4 5 6 TANGENT/ARC CENTERS X Y 2-3 1834019.000 270301.000 That portion of BLock 243, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, specifically described as follows: 1 2 3 LINE/INTERSECTIONS X Y 1793700.000 231391.937 1794962.662 230450.000 1794962.662 231391.937 TANGENT/ARC CENTERS X Y That portion of Block 252, South Marsh Island Area, North Addition, specifically described as follows: LINE/INTERSECTIONS X Y 1824478.762 216633.887 1824478.762 216417.241 1823327.103 216633.887 1823327.103 216633.887 1 2 3 4 TANGENT/ARC CENTERS X Y 3-4 1834019.000 270301.000 That portion of Block 253, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, specifically described as follows: LINE/INTERSECTIONS X Y 1824478.762 216417.241 1824478.762 216633.887 1834267.871 216633.887 1834263.090 215579.742 1824478.762 216417.241 1 2 3 4 5 TANGENT/ARC CENTERS X Y 4-5 1834019.000 270301.000 That portion of Block 220, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, specifically described as follows: 1 2 3 4 5 LINE/INTERSECTIONS X Y 1736625.457 275666.087 1750688.512 275666.087 1742850.000 269500.000 1750688.512 262750.000 1736595.744 271550.605 TANGENT/ARC CENTERS X Y http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page Page 2 of 16 6 1736595.744 271550.605 1 2 3 4 5 6 LINE/INTERSECTIONS X Y 1750688.512 262750.000 1752800.000 260908.037 1750688.512 275666.087 1750688.512 262750.000 1765446.562 275666.087 1765446.562 260908.037 S1/2 TANGENT/ARC CENTERS X Y All of Block 222, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. All of Block 223, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. All of Block 224, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. That portion of Block 225, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: LINE/INTERSECTIONS X Y 1809720.712 260908.037 1809720.712 275666.087 1812492.273 275666.087 1815531.000 274401.000 1817077.000 263541.000 1818382.490 260908.037 1809720.712 260908.037 1 2 3 4 5 6 7 TANGENT/ARC CENTERS X Y 3-4 4-5 5-6 1820993.702 1833526.827 1834018.719 291804.401 271422.795 270301.005 That portion of Block 226, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: LINE/INTERSECTIONS X Y 1824478.762 246149.987 1824478.762 254754.189 1834428.557 252064.998 1834401.730 246149.987 1824478.762 246149.987 1 2 3 4 5 TANGENT/ARC CENTERS X Y 2-3 1834019.000 270301.000 That portion of Block 227, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: LINE/INTERSECTIONS X Y 1809720.712 246149.987 1809720.712 260908.037 1818382.490 260908.037 1824478.762 254754.021 1824478.762 246149.987 1809720.712 246149.987 1 2 3 4 5 6 TANGENT/ARC CENTERS X Y 3-4 1834018.719 270301.005 All of Block 228, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. All of Block 229, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. Beginning at the intersection of the three-mile line established by the 1975 Decree entered in U.S. v. Louisiana, No. 9, Original, with the east boundary of Block 230. OCS Leasing Map, South Marsh Island Area, North Addition, Louisiana, Map No. 3D, the coordinates of which referred to the Louisiana (Lambert) Coordinate System (South Zone) area: 1 2 3 4 5 6 7 LINE/INTERSECTIONS X Y 1769450.000 249950.000 1773550.000 248050.000 1777550.000 246149.987 1765446.562 260908.037 1765446.562 251850.000 1780204.612 246149.987 1780204.612 260908.037 TANGENT/ARC CENTERS X Y Beginning at the intersection of the three-mile line established by the 1975 Decree entered in U.S. v. Louisiana, No. 9, Original, with the east boundary of Block 231, OCS Leasing Map, South Marsh Island Area, North Addition, Louisiana, Map No. 3D, the coordinates of which referred to the Louisiana (Lambert) Coordinate System (South Zone) are: 1 2 3 4 LINE/INTERSECTIONS X Y 1761400.000 254350.000 1765446.562 251850.000 1765446.562 260908.037 1752800.000 260908.037 TANGENT/ARC CENTERS X Y http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page 5 1757400.000 Page 3 of 16 257050.000 Beginning at the intersection of the three-mile line established by the 1975 Decree entered in U.S. v. Louisiana, No. 9, Original, with the east boundary of Block 235, OCS Leasing Map, South Marsh Island Area, North Addition, Louisiana, Map No. 3D, the coordinates of which referred to the Louisiana (Lambert) Coordinate System (South Zone) are: 1 2 3 LINE/INTERSECTIONS X Y 1780204.612 244400.000 1780204.612 246149.987 1777550.000 246149.987 TANGENT/ARC CENTERS X Y The coordinates are based on the Louisiana (Lambert) Plane Coordinate System, South Zone, Block 236, South Marsh Island Area 1 2 3 4 5 6 7 8 LINE/INTERSECTIONS X Y 1783900.000 241200.000 1787400.000 237900.000 1789800.000 235100.000 1793700.000 231391.937 1794962.662 231391.937 1780204.612 244400.000 1780204.612 246149.987 1794962.662 246149.987 TANGENT/ARC CENTERS X Y All of Block 237, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. All of Block 238, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. All of Block 239, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. That portion of Block 208, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: 1 2 3 4 5 6 7 8 9 10 LINE/INTERSECTIONS X Y 1750688.512 305182.187 1750688.512 316635.385 1751585.000 316665.000 1761004.000 315404.000 1763172.000 315299.000 1765446.562 305182.187 1750688.512 305182.187 1761238.000 315388.000 1762008.000 315338.000 1765446.562 312297.781 TANGENT/ARC CENTERS X Y 3-4 4-5 7-8 1758630.000 1762420.000 1778769.000 333490.000 333590.000 324757.000 6-7 1763190.000 333540.000 That portion of Block 209, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: 1 2 3 4 5 6 7 8 9 10 11 LINE/INTERSECTIONS X Y 1736838.545 305182.187 1736899.893 313679.818 1741757.000 315745.000 1745678.000 316238.000 1749527.000 316597.000 1750688.512 316635.385 1736838.545 305182.187 1738098.000 314155.000 1750688.512 305182.187 1737269.000 313819.000 1736838.549 305182.817 TANGENT/ARC CENTERS X Y 4-5 1730831.000 330886.000 All of Block 210, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. All of Block 211, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. That portion of Block 212, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: 1 2 3 4 5 6 LINE/INTERSECTIONS X Y 1765446.562 290424.137 1765446.562 305182.187 1773496.655 305182.187 1780204.612 293288.603 1780204.612 290424.137 1765446.562 290424.137 TANGENT/ARC CENTERS X Y 3-4 1791583.605 307544.760 That portion of Block 216, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page Page 4 of 16 follows: 1 2 3 4 5 6 7 LINE/INTERSECTIONS X Y 1780204.612 275666.087 1780204.612 290424.137 1785290.453 290424.137 1792971.000 289357.000 1794962.662 285737.729 1794962.662 275666.087 1780204.612 275666.087 TANGENT/ARC CENTERS X Y 3-4 4-5 1791583.605 1809844.762 307544.760 296284.889 All of Block 217, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. All of Block 218, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. All of Block 219, South Marsh Island Area, North Addition, as shown on OCS Louisiana Leasing Map, LA3D. That portion of Block 207, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana No. 9 Original, specifically described as follows: 1 2 3 4 5 6 7 LINE/INTERSECTIONS X Y 1765446.562 312297.551 1769317.000 309156.000 1773422.000 305849.000 1765446.562 305182.187 1773496.655 305182.187 1771284.000 307407.000 1765446.562 305182.187 2-3 3-4 5-6 TANGENT/ARC CENTERS X Y 1778769.334 324756.412 1782389.457 321877.256 1791583.605 307544.760 4-5 1783067.257 321330.877 That portion of Block 213, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: 1 2 3 4 LINE/INTERSECTIONS X Y 1780204.612 290424.137 1780204.612 293288.603 1785290.453 290424.137 1780204.612 290424.137 TANGENT/ARC CENTERS X Y 2-3 1791583.605 307544.760 That portion of Block 215, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: 1 2 3 4 5 6 LINE/INTERSECTIONS X Y 1794962.662 275666.087 1794962.662 285737.729 1808997.000 278064.000 1809720.712 277464.276 1809720.712 275666.087 1794962.662 275666.087 TANGENT/ARC CENTERS X Y 2-3 3-4 1809844.762 1820993.702 296284.889 291804.401 That portion of Block 214, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, specifically described as follows: 1 2 3 4 02/07/1936 08/18/1959 01/07/1976 01/07/1976 01/07/1976 01/07/1976 01/07/1976 01/07/1976 01/07/1976 01/07/1976 01/07/1976 12/01/1982 05/02/1983 LINE/INTERSECTIONS X Y 1809720.712 275666.087 1809720.712 277464.276 1812492.273 275666.087 1809720.712 275666.087 TANGENT/ARC CENTERS X Y 2-3 1820993.702 291804.401 Date of lease: 02/07/1936. Expected expiration date: 02/06/1946 The Texas Company changed its name to Texaco Inc. Unit Contract #13847, effective 1/7/76. Unit Contract #13847A, effective 1/7/76. Unit Contract #13847B, effective 1/7/76. Unit Contract #13847C, effective 1/7/76. Unit Contract #13847D, effective 1/7/76. Unit Contract #13847E, effective 1/7/76. Unit Contract #13847F, effective 1/7/76. Unit Contract #13847G, effective 1/7/76. Unit Contract #13847H, effective 1/7/76. Unit Contract #20234, effective 12/1/82. Record title interest is now held as follows, effective 12/1/1982: All of Block 241, South Marsh Island Area, North Addition of Block 240, South Marsh Island Area, North Addition() Transco Exploration Company Texaco Inc. 60.00000 % 40.00000 % http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page Page 5 of 16 All Blocks EXCLUDING Block 241, South Marsh Island Area, North Addition of Block 240, South Marsh Island Area, North Addition() Texaco Inc. 02/15/1984 04/12/1984 100.00000 % Unit Contract #20252, effective 2/15/84. Record title interest is now held as follows, effective 7/20/1983: Portion of Block 241, South Marsh Island Area, North Addition (4382.36acres) Texaco Inc. TXP Operating Company 40.00000 % 60.00000 % All Blocks EXCLUDING Block 241, South Marsh Island Area, North Addition (110218.64acres) Texaco Inc. 12/10/1984 08/01/1989 09/01/1989 11/01/1989 100.00000 % Texaco Inc. designates TXP Operating Company as operator. Only of South Marsh Island Block 241 landward of the stipulated line containing approximately 4382.36 acres. Unit Contract #754389020 approved, effective 5/1/89. Unit Agreement consists of Leases OCS 00310, G03147. Amerada Hess Corporation designates TXP Operating Company as operator. Record title interest is now held as follows, effective 1/1/1989: Portion of Block 241, South Marsh Island Area, North Addition (4382.36acres) Amerada Hess Corporation Texaco Inc. 60.00000 % 40.00000 % All Blocks EXCLUDING Block 241, South Marsh Island Area, North Addition (110218.64acres) Texaco Inc. 06/06/1990 10/03/1991 01/06/1992 02/28/1994 05/05/1994 100.00000 % Amerada Hess Corporation designates Texaco Inc. as operator. Texaco Inc. designates Amerada Hess Corporation as operator. of the NE1/4SE1/4 of Block 241, South Marsh Island Area, South Addition, INSOFAR AND ONLY INSOFAR as to Well No. 301. Amerada Hess Corporation designates Texaco Inc. as operator. Amerada Hess Corporation designates Texaco Exploration and Production Inc. as operator. All of Block Record title interest is now held as follows, effective 1/1/1991: All Blocks EXCLUDING Block 241, South Marsh Island Area, North Addition. (110218.64acres) Texaco Exploration and Production Inc. 100.00000 % Portion of Block 241, South Marsh Island Area, North Addition (4382.36acres) Amerada Hess Corporation Texaco Exploration and Production Inc. 08/03/1994 60.00000 % 40.00000 % Operating rights interest is now held as follows, effective 1/1/1991: NW1/4NW1/4SW1/4; S1/2NW1/4SW1/4; SW1/4SW1/4; SW1/4NE1/4SW1/4; SE1/4SW1/4; SW1/4SW1/4SE1/4 of Block 207 South Marsh Island Area, North Addition; SE1/4NE1/4SE1/4; E1/2SE1/4SE1/4 of Block 208, South Marsh Island Area, North Addition; NE1/4NE1/4NE1/4 of Block 211, South Marsh Island Area, North Addition; NW1/4NW1/4; E1/2NW1/4; W1/2NW1/4NE1/4; NW1/4SW1/4NE1/4 of Block 212, South Marsh Island Area, North Addition; INSOFAR AND ONLY INSOFAR, as to those unitized reservoirs described in that certain Unit Agreement - Lighthouse Point Field date effective July 1, 1976, the reservoirs being more fully described individually as the P-Sand, Q-1 Sand, Q-2 Sand, S-Sand, T-Sand, W-Sand, X-Sand and Y-Sand all of which are located in the subsurface interval between the depths of 9,256' through 11,746' as seen on that certain electric log of Texaco Inc.'s OS 0310 State Lease 340 Lighthouse Point Well No. 2 located in South Marsh Island Area, North Addition, Offshore Vermilion Parish, Louisiana Texaco Inc. 12/28/1994 100.00000 % Operating rights interest is now held as follows, effective 6/1/1994: NW1/4NW1/4SW1/4; S1/2NW1/4SW1/4; SW1/4SW1/4; SW1/4NE1/4SW1/4; SE1/4SW1/4; SW1/4SW1/4SE1/4 of Block 207 South Marsh Island Area, North Addition; SE1/4NE1/4SE1/4; E1/2SE1/4SE1/4 of Block 208, South Marsh Island Area, North Addition; NE1/4NE1/4NE1/4 of Block 211, South Marsh Island Area, North Addition; NW1/4NW1/4; E1/2NW1/4; W1/2NW1/4NE1/4; NW1/4SW1/4NE1/4 of Block 212, South Marsh Island Area, North Addition; INSOFAR AND ONLY INSOFAR, as to those unitized reservoirs described in that certain Unit Agreement - Lighthouse Point Field date effective July 1, 1976, the reservoirs being more fully described individually as the P-Sand, Q-1 Sand, Q-2 Sand, S-Sand, T-Sand, W-Sand, X-Sand and Y-Sand all of which are located in the subsurface interval between the depths of 9,256' through 11,746' as seen on that certain electric log of Texaco Inc.'s OS 0310 State Lease 340 Lighthouse Point Well No. 2 located in South Marsh Island Area, North Addition, Offshore Vermilion Parish, Louisiana Texaco Exploration and Production Inc. 06/02/1995 06/30/1995 100.00000 % Texaco Exploration and Production Inc. designates British-Borneo Exploration, Inc. as operator. of the N1/2SW1/4; S1/2S1/2NW1/4; SW1/4SW1/4NE1/4; W1/2NW1/4SE1/4; N1/2S1/2SW1/4; NW1/4SW1/4SE1/4 of Block 210, South Marsh Island Area, North Addition. (Replaced by Texaco Exploration and Production, Inc. See 12/15/95.) Operating rights interest is now held as follows, effective 1/1/1995: INSOFAR AND ONLY INSOFAR AS the operating rights covers portions of Block 236, 237, 242, and 243, South Marsh Island Area, from the stratigraphic equivalent of the productive sand interval the top of which is seen at a depth of 9,640 feet in OCS-G 4270 Well No. C-1 and the bottom of which is seen at a depth of 11,291 feet in the OCS-G 4270 Well No. C-3 Apache Corporation 12/15/1995 12/15/1995 01/24/1996 100.00000 % Texaco Exploration and Production Inc. designates British-Borneo Exploration, Inc. as operator. of the SE1/4NE1/4; E1/2SW1/4NE1/4; S1/2NE1/4NE1/4 of Block 228, South Marsh Island Area, North Addition, AND W1/2NW1/4 of Block 227, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of the N1/2SW1/4; S1/2S1/2NW1/4; SW1/4SW1/4NE1/4; W1/2NW1/4SE1/4; N1/2/S1/2SW1/4; NW1/4SW1/4SE1/4 of Block 210, South Marsh Island Area, North Addition. Operating rights interest is now held as follows, effective 5/1/1995: INSOFAR AND ONLY INSOFAR AS the operating rights covers portions of Block 236, 237, 242, and 243, South Marsh Island Area, from the stratigraphic equivalent of the productive sand interval the top of which is seen at a depth of 9,640 feet in OCS-G 4270 Well No. C-1 and the bottom of which is seen at a http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page Page 6 of 16 depth of 11,291 feet in the OCS-G 4270 Well No. C-3 Santa Fe Energy Resources, Inc. 01/29/1996 06/28/1996 06/28/1996 11/19/1996 04/17/1997 05/29/1997 08/13/1997 100.00000 % Texaco Exploration and Production Inc. designates British-Borneo Exploration, Inc. as operator. of the S1/2SW1/4SW1/4; W1/2NW1/4 of Block 227, South Marsh Island Area, North Addition; and SE1/4NE1/4; E1/2SW1/4NE1/4; S1/2NE1/4NE1/4; SE1/4SE1/4SE1/4 of Block 228, South Marsh Island Area, North Addition; and NE1/4NE1/4NE1/4 of Block 237, South Marsh Island Area, North Addition; and NW1/4NW1/4; W1/2NE1/4NW1/4; N1/2SW1/4NW1/4; NW1/4SE1/4NW1/4 of Block 238, South Marsh Island Area, North Addition. (Replaced by Texaco Exploration and Production Inc. See 6/28/96.) Texaco Exploration and Production Inc. designates Zilkha Energy Company as operator. of the SE1/4NE1/4 of Block 238, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of the S1/2SW1/4SW1/4; W1/2NW1/4 of Block 227, South Marsh Island Area, North Addition, and; SE1/4NE1/4; E1/2SW1/4NE1/4; S1/2NE1/4NE1/4; SE1/4SE1/4SE1/4 of Block 228, South Marsh Island Area, North Addition, and; NE1/4NE1/4NE1/4 of Block 237, South Marsh Island Area, North Addition, and: NW1/4NW1/4; W1/2NE1/4NW1/4; N1/2SW1/4NW1/4; NW1/4SE1/4NW1/4 of Block 238, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Santa Fe Energy Resources, Inc. as operator. Texaco Exploration and Production Inc. designates Zilkha Energy Company as operator. of the SE1/4NE1/4 of Block 238, South Marsh Island Area, North Addition; AND W1/2; W1/2E1/2 of Block 224, South Marsh Island Area, North Addition; AND S1/2N1/2NE1/4; N1/2SE1/4; S1/2NE1/4 of Block 229, South Marsh Island Area, South Addition. Texaco Exploration and Production Inc. designates Zilkha Energy Company as operator. Operating rights interest is now held as follows, effective 8/1/1996: NE1/4; N1/2SE1/4 of Block 238, South Marsh Island Area, North Addition; NW1/4; N1/2SW1/4 of Block 239, South Marsh Island Area, North Addition, from the base of the "O" Sand as seen in Texaco's OCS 0310 Well No. 132 at a depth of 10,318 feet subsea (10,380 feet measured depth) to a depth of 12,000 feet subsea Zilkha Energy Company 03/06/1998 06/19/1998 05/19/1999 05/28/1999 100.00000 % Sonat Acquisition Corporation, an unqualified Delaware corporation merged with and into Zilkha Energy Company and simultaneously changed its name to Sonat Exploration GOM Inc., effective 1/30/98. The name of the surviving corporation is Sonat Exploration GOM Inc. (GOM Company Number 1138). Texaco Exploration and Production Inc. designates Ocean Energy, Inc. as operator. Texaco Exploration and Production Inc. designates Sonat Exploration GOM Inc. as operator. of the SE1/4NE1/4 of Block 238, South Marsh Island Area, North Addition; S1/2N1/2NE1/4; N1/2SE1/4 and S1/2NE1/4 of Block 229, South Marsh Island Area, North Addition, and S1/2SW1/4 of Block 210, South Marsh Island Area, North Addition; N1/2NW1/4NW1/4; N1/2NE1/4NW1/4 of Block 219, South Marsh Island Area, North Addition. Operating rights interest is now held as follows, effective 5/1/1998: W1/2SW1/4SW1/4 of Block 210, South Marsh Island Area, North Addition; NW1/4NW1/4NW1/4 of Block 219, South Marsh Island Area, North Addition from the top of the Amphistegina "B" sand (Amph "B"). The base of the "Amph "B" sand shall be defined herein as the certain subsurface interval, or stratigraphic equivalent thereof, identified on the electric log of the Zilkha Energy Company OCS 0310 Well No. 197 at 12,760' MD (12,660 TVD) to 12,888' MD (12,788 TVD) Sonat Exploration GOM Inc. 05/28/1999 100.00000 % Operating rights interest is now held as follows, effective 5/1/1998: E1/2SW1/4SW1/4; SE1/4SW1/4 of Block 210, South Marsh Island Area, North Addition and the NE1/4NW1/4NW1/4; N1/2NE1/4NW1/4 of Block 219, South Marsh Island Area, North Addition from the surface of the earth down to the base of the Amphistegina "B" sand (Amph "B"). The base of the "Amph "B" sand shall be defined herein as the certain subsurface interval, or stratigraphic equivalent thereof, identified on the electric log of the Zilkha Energy Company OCS 0310 Well No. 197 at 12,888 MD (12,788 TVD) Sonat Exploration GOM Inc. 05/28/1999 100.00000 % Operating rights interest is now held as follows, effective 5/1/1998: S1/2N1/2NE1/4; NE1/4SW1/4NE1/4; SE1/4NE1/4 of Block 229, South Marsh Island Area, North Addition, from the surface of the earth down to the base of the Textularia "W" sand (Tex "W"). The base of the Tex "W" shall be defined herein as that depth, or stratigraphic equivalent thereof, identified on the electric log of the Zilkha Energy Company OCS 0310 Well No. 195 from 10,975 MD (10,670' TVD) Sonat Exploration GOM Inc. 05/28/1999 100.00000 % Operating rights interest is now held as follows, effective 5/1/1998: NW1/4SW1/4NE1/4; S1/2SW1/4NE1/4; N1/2SE1/4 of Block 229, South Marsh Island Area, North Addition, from the top of the Textularia "W" sand (Tex "W") to the base of the Tex "W" sand. The Tex "W" sand shall be defined herein as that certain subsurface interval, or stratigraphic equivalent thereof, identified on the electric log of the Zilkha Energy Company OCS 0310 Well No. 195 from 10,875 MD (10,600 TVD) to 10,975 MD (10,670 TVD) Sonat Exploration GOM Inc. 06/24/1999 08/20/1999 03/09/2000 08/30/2000 12/18/2000 01/23/2001 01/23/2001 04/16/2001 05/31/2001 06/19/2001 08/09/2001 100.00000 % Texaco Exploration and Production Inc. designates Seneca Resources Corporation as operator. SOCO Offshore, Inc. merged into DelMar Petroleum, Inc., an unqualified Delaware corporation, effective May 20, 1998. DelMar Petroleum, Inc., Institutional Services Inc., SOCO California Properties, Inc., SOCO Holdings Inc., SOCO Thomasville Inc. and Thomasville Energy Corporation, all unqualified Delaware corporations merged with and into Snyder Oil Corporation, effective May 20, 1998. Snyder Oil Corporation merged with and into Santa Fe Energy Resources, Inc. and simultaneous change of name to Santa Fe Snyder Corporation, effective May 5, 1999. The name of the surviving corporation is Santa Fe Snyder Corporation (GOM Company Number 1551). Sonat Exploration GOM Inc. changed its name to El Paso Production GOM Inc., effective 10/25/1999. Unit Contract No. 891013847 terminated, effective 03/01/1999. The unit consisted of 00310, S0340. Devon Merger Co., an unqualified Delaware corporation, merged with and into Santa Fe Snyder Corporation (GOM Company Number 1551) and simultaneously changed its name to Devon SFS Operating, Inc., effective 8/29/2000. The name of the surviving corporation is Devon SFS Operating, Inc. (GOM Company Number 1551). Texaco Exploration and Production Inc. designates Challenger Minerals Inc. as operator. of All of Block 211, South Marsh Island Area, North Addition, LIMITED TO the drilling and completion of Well No. 210. Texaco Exploration and Production Inc. designates Challenger Minerals Inc. as operator. of All of Block 219, South Marsh Island Area, North Addition, LIMITED TO the drilling and completion of Well No. 211. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 219, South Marsh Island Area, North Addition, LIMITED TO the drilling and completion of Well No. 211. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. All of Block Held by unit production, lease receiving an allocation. Texaco Exploration and Production Inc. designates Linder Oil Company, A Partnership as operator. of the SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area; and of the NE1/4NW1/4; W1/2NW1/4NE1/4; http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page 08/09/2001 08/09/2001 08/16/2001 08/28/2001 Page 7 of 16 NE1/4NW1/4NW1/4 of Block 212 of the South Marsh Island Area, North Addition, from the surface of the earth to a true vertical depth of 12,200'. Linder Energy Company designates Linder Oil Company, A Partnership as operator. of the SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area; and of the NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212 of the South Marsh Island Area, North Addition, from the surface of the earth to a true vertical depth of 12,200'. Louisiana General Oil Company designates Linder Oil Company, A Partnership as operator. of the SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area; and of the NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212 of the South Marsh Island Area, North Addition, from the surface of the earth to a true vertical depth of 12,200'. Held by unit production, lease receiving an allocation. Operating rights interest is now held as follows, effective 5/18/2001: SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area, North Addition; and NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR from the surface of the earth to 12,200' TVD, which is the base of the amp "B" 12,000' sand and is the total depth drilled in the Linder Oil Company, A Partnership State Lease 340 No. 1 Well Louisiana General Oil Company Texaco Exploration and Production Inc. Linder Energy Company 08/29/2001 09/06/2001 12/05/2001 12/05/2001 12/18/2001 10.00000 % 50.00000 % 40.00000 % Merger of Interest Approved. The owner of the record title interest and operating rights covering a portion of Blocks 207, 208, 211 and 212, South Marsh Island Area, North Addition, requested that the record title and operating rights ownership be merged and made whole. The operating rights and the corresponding record title interest are commonly owned and therefore are now merged. As a result of such merging of interest, these operating rights are no longer severed. See file for complete description Unit Contract No. 754301012 approved, effective 09/05/2001. The unit consists of 00310, S00340. Linder Energy Company designates Texaco Exploration and Production Inc. as operator. of the SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area; and of the NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212 of the South Marsh Island Area, North Addition, from the surface of the earth to a true vertical depth of 12,200'. Louisiana General Oil Company designates Texaco Exploration and Production Inc. as operator. of the SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area; and of the NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212 of the South Marsh Island Area, North Addition, from the surface of the earth to a true vertical depth of 12,200'. Operating rights interest is now held as follows, effective 3/15/2000: NW1/4SW1/4SE1/4; S1/2SW1/4NE1/4; N1/2SE1/4 of Block 229, South Marsh Island Area, North Addition, from the top of the Textularia "W" sand (Tex "W") to the base of the Tex "W" sand. The Tex "W" sand shall be defined herein as that certain subsurface interval, or stratigraphic equivalent thereof, identified on the electric log of the Zilkha Energy Company OCS 0310 Well No. 195 from 10,875 MD (10,600' TVD) to 10,975 MD (10,670' TVD) Texaco Exploration and Production Inc. 12/18/2001 12/18/2001 100.00000 % As a result of the approval of S1/2N1/2NE1/4; NE1/4SW1/4NE1/4; SE1/4NE1/4 of Block 229, South Marsh Island Area, North Addition, the Record Title interest and Operating Rights interest have been merged. Therefore, the Operating Rights shown are no longer severed. Operating rights interest is now held as follows, effective 3/15/2000: S1/2N1/2NE1/4; NE1/4SW1/4NE1/4; SE1/4NE1/4 of Block 229, South Marsh Island Area, North Addition, from the surface of the earth down to the base of the Textularia "W" sand (Tex "W"). The base of the Tex "W" shall be defined herein as that depth, or stratigraphic equivalent thereof, identified on the electric log of the Zilkha Energy Company OCS 0310 Well No. 195 from 10,975 MD (10,670' TVD) Texaco Exploration and Production Inc. 12/18/2001 100.00000 % Operating rights interest is now held as follows, effective 3/15/2000: NE1/4; N1/2SE1/4 of Block 238, South Marsh Island Area, North Addition; NW1/4; N1/2SW1/4 of Block 239, South Marsh Island Area, North Addition, from the base of the "O" Sand as seen in Texaco's OCS 0310 Well No. 132 at a depth of 10,318 feet subsea (10,380 feet measured depth) to a depth of 12,000 feet subsea Texaco Exploration and Production Inc. El Paso Production GOM Inc. 12/18/2001 12/18/2001 50.00000 % 50.00000 % As a result of this approval, the Record Title interest and Operating Rights interest have been merged. Therefore, the operating Rights shown are no longer severed. Operating rights interest is now held as follows, effective 3/15/2001: W1/2SW1/4SW1/4 of Block 210 and the NW1/4NW1/4NW1/4 of Block 219 from the top of the Amphistegina "B" sand (Amph "B") to the base of the "Amph "B". The "Amph "B" sand shall be defined herein as the certain subsurface interval, or stratigraphic equivalent thereof, identified on the electric log of the Zilkha Energy Company OCS 0310 Well No. 197 from 12,760 MD (12,660 TVD) to 12,888 MD (12,788 TVD) Texaco Exploration and Production Inc. 12/18/2001 100.00000 % Operating rights interest is now held as follows, effective 3/15/2000: E1/2SW1/4SW1/4; SE1/4SW1/4 of Block 210, South Marsh Island Area, North Addition and the NE1/4NW1/4NW1/4; N1/2NE1/4NW1/4 of Block 219, South Marsh Island Area, North Addition from the surface of the earth down to the base of the Amphistegina "B" sand (Amph "B"). The base of the "Amph "B" sand shall be defined herein as the certain subsurface interval, or stratigraphic equivalent thereof, identified on the electric log of the Zilkha Energy Company OCS 0310 Well No. 197 at 12,888 MD (12,788 TVD) Texaco Exploration and Production Inc. 01/25/2002 01/30/2002 100.00000 % Unit suspension of production approved from 01/19/2002 through 04/30/2002. Unit Contract No. 754301012 consists of 00310, S00340. Operating rights interest is now held as follows, effective 7/3/2001: SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area, North Addition; and NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR from the surface of the earth to 12,200' TVD, which is the base of the amp "B" 12,000' sand and is the total depth drilled in the Linder Oil Company, A Partnership State Lease 340 No. 1 Well Texaco Exploration and Production Inc. Dunhill Resources I, LLC 01/30/2002 50.00000 % 50.00000 % Dunhill Resources I, LLC designates Texaco Exploration and Production Inc. as operator. of the SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area; and of the NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212 of the South Marsh Island Area, North Addition, from the surface of the earth to a true vertical depth of 12,200'. http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page 02/06/2002 02/06/2002 02/06/2002 02/06/2002 02/06/2002 02/06/2002 02/06/2002 02/06/2002 02/06/2002 02/06/2002 02/06/2002 05/21/2002 05/21/2002 05/31/2002 08/06/2002 Page 8 of 16 Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 207, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 208, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 210, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 212, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 219, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 224, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 229, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of the S1/2; NW1/4; W1/2NE1/4; NE1/4NE1/4 of Block 238, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates El Paso Production GOM Inc. as operator. of the SE/4NE/4 of Block 238, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. of All of Block 239, South Marsh Island Area, North Addition. Texaco Exploration and Production Inc. designates McMoRan Oil & Gas LLC as operator. All of Block 223, South Marsh Island Area, North Addition. Merger of Interest Approved. The owner of the record title interest and operating rights covering a portion of Block 229, South Marsh Island Area, North Addition, requested that the record title and operating rights ownership be merged and made whole. The operating rights and the corresponding record title interest are commonly owned and therefore are now merged. As a result of such merging of interest, these operating rights are no longer severed. See file for complete description Merger of Interest Approved. The owner of the record title interest and operating rights covering a portion of Blocks 210 and 219, South Marsh Island Area, North Addition, requested that the record title and operating rights ownership be merged and made whole. The operating rights and the corresponding record title interest are commonly owned and therefore are now merged. As a result of such merging of interest, these operating rights are no longer severed. See file for complete description Texaco Exploration and Production Inc. designates El Paso Production Company as operator. All of Block 223, South Marsh Island Area, North Addition, all depths. Operating rights interest is now held as follows, effective 7/2/2001: SE1/4SW1/4; SW1/4SW1/4; SW1/4SE1/4; SE1/4SE1/4 of Block 210, South Marsh Island Area, North Addition; SW1/4SW1/4 of Block 211, South Marsh Island Area, North Addition, from the surface down to 13,564 feet measured depth Texaco Exploration and Production Inc. Challenger Minerals Inc. 08/06/2002 08/06/2002 08/06/2002 01/28/2003 01/28/2003 60.62500 % 39.37500 % Challenger Minerals Inc. designates Texaco Exploration and Production Inc. as operator. That portion of South Marsh Island Block 210: SE1/4SW1/4; SW1/4SW1/4; SW1/4SE1/4 and SE1/4SE1/4 and That portion of South Marsh Island Block 211: SW1/4SW1/4 Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. A portion of Block 211, South Marsh Island Area, North Addition described as N1/2; SE1/4; E1/2SW1/4; NW1/4SW1/4 Texaco Exploration and Production Inc. designates Texaco Exploration and Production Inc. as operator. A portion of Block 210, South Marsh Island Area, North Addition described as N1/2; N1/2SW1/4; N1/2SE1/4 Chevron U.S.A. Inc. designates El Paso Production Company as operator. SE/4SE/4 of Block 217, SM Area, all depths. Operating rights interest is now held as follows, effective 5/1/2002: NE1/4; N1/2SE1/4 of Block 238, South Marsh Island Area, North Addition; NW1/4; N1/2SW1/4 of Block 239, South Marsh Island Area, North Addition, from the base of the "O" Sand as seen in Texaco's OCS 0310 Well No. 132 at a depth of 10,318 feet subsea (10,380 feet measured depth) to a depth of 12,000 feet subsea El Paso Production GOM Inc. Chevron U.S.A. Inc. 01/28/2003 50.00000 % 50.00000 % Record title interest is now held as follows, effective 5/1/2002: All Blocks EXCLUDING Block 241, South Marsh Island Area, North Addition of Block 240, South Marsh Island Area, North Addition(110218.64) Chevron U.S.A. Inc. 100.00000 % Portion of Block 241, South Marsh Island Area, North Addition (4382.36acres) Amerada Hess Corporation Chevron U.S.A. Inc. 01/28/2003 01/28/2003 60.00000 % 40.00000 % Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. That portion of Block 207, SM Area, all depths; that portion of Block 208, SM Area, all depths; that portionof Block 209, SM Area, all depths; All of Block 210, SM Area, all depths; All of Block 211, SM Area, all depths; that portion of Block 212, SM Area, all depths; that portion of Block 213, SM Area, all depths; that portion of Block 214, SM Area, all depths; that portion of Block 215, SM Area, all depths; that portion of Block 216, SM Area, all depths; All of Block 217, SM Area, all depths; All of Block 218, SM Area, all depths; All of Block 219, SM Area, all depths; that portion of Block 220, SM Area, all depths; that portion of Block 221, SM Area, all depths; All of Block 222, SM Area, all depths; All of Block 224, SM Area, all depths; that portion of Block 225, SM Area, all depths; that portion of Block 226, SM Area, all depths; that portion of Block 227, SM Area, all depths; All of Block 228, SM Area, all depths; All of Block 229, SM Area, all depths; that portion of Block 230, SM Area, all depths; that portion of Block 231, SM Area, all depths; that portion of Block 235, SM Area, all depth; that portion of Block 236, SM Area, all depths; All of Block 237, SM Area, all depths; S/2;NW/4;W/2NE/4;NE/4NE/4 of Block 238, SM Area, all depths; All of Block 239, SM Area, all depths; All of Block 240, SM Area from 0 to 12500' TVD; that portion of Block 241, SM Area, all depths; that portion of Block 242, SM Area, all depths; that portion of Block 243, SM Area, all depths; that portion of Block 252, SM Area, all depths; and that portion of Block 253, SM Area, all depths. Operating rights interest is now held as follows, effective 5/1/2002: SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area, North Addition; and NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR from the surface of the earth to 12,200' TVD, which is the base of the amp "B" 12,000' sand and is the total depth drilled in the Linder Oil Company, A Partnership State Lease 340 No. 1 Well, Chevron U.S.A. Inc. Dunhill Resources I, LLC 01/28/2003 50.00000 % 50.00000 % Amerada Hess Corporation designates Chevron U.S.A. Inc. as operator. Portion of Block 241, South Marsh Island Area, North Addition http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page 01/28/2003 Page 9 of 16 Operating rights interest is now held as follows, effective 5/1/2002: SE1/4SW1/4; SW1/4SW1/4; SW1/4SE1/4; SE1/4SE1/4 of Block 210, South Marsh Island Area, North Addition; SW1/4SW1/4 of Block 211, South Marsh Island Area, North Addition, from the surface down to 13,564 feet measured depth Chevron U.S.A. Inc. Challenger Minerals Inc. 01/28/2003 01/28/2003 01/28/2003 01/28/2003 01/28/2003 01/28/2003 01/28/2003 01/28/2003 03/07/2003 03/13/2003 05/19/2003 08/01/2003 60.62500 % 39.37500 % Chevron U.S.A. Inc. designates El Paso Production GOM Inc. as operator. SE/4NE/4 of Block 238, SM Area, all depths. Chevron U.S.A. Inc. designates Seneca Resources Corporation as operator. All of Block 240, SM Area below 12500' TVD. Chevron U.S.A. Inc. designates Challenger Minerals Inc. as operator. All of Block 211, SM Area, all depths limited to drilling and cmpletion of Well No. 210.. Chevron U.S.A. Inc. designates El Paso Production Company as operator. All of Block 223, SM Area, all depths. Chevron U.S.A. Inc. designates Ocean Energy, Inc. as operator. NE/4SW/4NE/4 of Block 236, SM Area, all depths, for drilling and operation of Well #199.. Challenger Minerals Inc. designates Chevron U.S.A. Inc. as operator. SE1/4SW1/4; SW1/4SW1/4; SW1/4SE1/4; SE1/4SE1/4 of Block 210, South Marsh Island Area, North Addition; AND SW1/4SW1/4 of Block 211, South Marsh Island Area, North Addition from the surface down to 13,564' measured depth Dunhill Resources I, LLC designates Chevron U.S.A. Inc. as operator. of the SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; and E1/2SW1/4SW1/4 of Block 207 of the South Marsh Island Area, and NE1/4NW1/4; W1/2NW1/4NE1/4; and NE1/4NW1/4NW1/4 of Block 212 of the South Marsh Isalnd Area, North Addition, as shown on official leasing map Louisiana Map N. 3D, Outer Continental Shelf Leasing Map, from the surface of the earth to a true vertical depth of 12,200' El Paso Production GOM Inc. designates Chevron U.S.A. Inc. as operator. N1/2NE1/4; SW1/4NE1/4; N1/2SE1/4 of Block 238, South Marsh Island Area, North Addition, from the base of the "O" Sand as seen in Texaco's OCS-0310 Well No. 132 at a depth of 10,318' subsea (10,380' MD) to a depth of 12,000' subsea AND NW1/4; N1/2SW1/4 of Block 239, South Marsh Island Area, North Addition, from the base of the "O" Sand as seen in Texaco's OCS-0310 Well No. 132 at a depth of 10,318' subsea (10,380' MD) to a depth of 12,000' subsea Chevron U.S.A. Inc. designates El Paso Production GOM Inc. as operator. of the SE1/4SE1/4 of Block 217, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. SW/4NE/4 of Block 223, South Marsh Island Area, North Addition. Held by unit production, lease receiving an allocation. Record title interest is now held as follows, effective 4/1/2003: All Blocks EXCLUDING Block 241, South Marsh Island Area, North Addition (110218.64acres) Chevron U.S.A. Inc. 100.00000 % Portion of Block 241, South Marsh Island Area, North Addition (4382.36acres) Chevron U.S.A. Inc. Anadarko Petroleum Corporation 08/01/2003 08/01/2003 09/04/2003 01/07/2004 02/02/2004 03/22/2004 04/09/2004 05/03/2004 05/03/2004 05/03/2004 40.00000 % 60.00000 % Anadarko Petroleum Corporation designates Chevron U.S.A. Inc. as operator. All of Block 241, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Anadarko Petroleum Corporation as operator. NE/4SE/4 of Block 241, South Marsh Island Area, North Addition INSOFAR as those rights pertain to the SM 241 #301 Well (API Well No. 17-707-40395-00). Ocean Energy, Inc. changed its name to Devon Louisiana Corporation, effective 06/01/2003. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N/2; SW/4; S/2SE/4; NE/4SE/4; N/2NW/4SE/4; SW/4NW/4SE/4 of Block 223, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates El Paso Production GOM Inc. as operator. SE/4SW/4SW/4 of Block 210, South Marsh Island Area, North Addition. Held by unit production, lease receiving an allocation. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. NE/4SE/4SW/4 of Block 217, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition from 0 to 12200' TVD; and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition from 0 to 12200' TVD. Orca Energy, L.P. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition from 0 to 12200'TVD. and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition from 0 to 12200'TVD. Operating rights interest is now held as follows, effective 1/8/2004: SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area, North Addition; and NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR from the surface of the earth to 12,000' TVD, which is the base of the amp "B" 12,000' sand and is the total depth drilled in the Linder Oil Company, A Partnership State Lease 340 No. 1 Well Chevron U.S.A. Inc. Orca Energy, L.P. 05/07/2004 05/07/2004 05/26/2004 05/26/2004 05/26/2004 06/24/2004 07/28/2004 08/02/2004 08/02/2004 08/04/2004 08/25/2004 50.00000 % 50.00000 % Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. SW/4SE/4NW/4 of Block 224, South Marsh Island Area, North Addition limited to OCS 00310 Well No. 194 (API#177074075000). Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. E/2W/2NW/4;E/2W/2SW/4;E/2NW/4;E/2SW/4;SW/4NE/4;N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. N/2NW/4;W/2NW/4NE/4 of Block 228, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. SW/4SE/4NW/4 of Block 224, South Marsh Island Area, North Addition limited to Well No. 194 (API#177074075000); and NE/4; E/2SE/4; E/2W/2SE/4 and NW/4NW/4SE/4 of Block 224, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. W/2;SW/4NW/4SE/4;W/2SW/4SE/4 of Block 224, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. SE/4SE/4 of Block 217, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. All of Block 228, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N/2NE/4;SE/4NE/4;NE/4SE/4;S/2NW/4SE/4;S/2SE/4 of Block 224, South Marsh Island Area, North Addition; and SW/4SE/4NW/4 of Block 224, South Marsh Island Area, North Addition limited to OCS 00310 Well No. 194 (API #177074075000). Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. N/2SE/4SW/4 of Block 217, South Marsh Island Area, North Addition; and W/2;SW/4NE/4;N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition. Unit Contract No. 754389020 terminated, effective 07/23/2004. The unit consisted of 00310, G03147. Operating rights interest is now held as follows, effective 6/5/2003: S1/2S1/2 of Block 216, South Marsh Island Area; and All of Block 223, South Marsh Island Area, limited to those depths from surface to 30,000 feet TVD Chevron U.S.A. Inc. El Paso Production Company 45.00000 % 55.00000 % http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page 08/25/2004 10/18/2004 12/06/2004 Page 10 of 16 El Paso Production Company designates Chevron U.S.A. Inc. as operator. N/2; SW/4; S/2SE/4; NE/4 SE/4; N/2NW/4SE/4; SW/4NW/4SE/4 of Block 223, South Marsh Island Area, North Addition; and S/2S/2 of Block 216, South Marsh Island Area, North Addition; Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. All of Block 240, South Marsh Island Area, North Addition, as to all depths. Operating rights interest is now held as follows, effective 8/1/2004: SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area, North Addition; and NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR from the surface of the earth to 12,200' TVD, which is the base of the amp "B" 12,000' sand and is the total depth drilled in the Linder Oil Company, A Partnership State Lease 340 No. 1 Well Chevron U.S.A. Inc. The Houston Exploration Company 12/06/2004 02/02/2005 50.00000 % 50.00000 % The Houston Exploration Company designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4, and E/2SW/4SW/4 of Block 207; and NE/4NW/4;W/2NW/4NE/4 and NE/4NW/4NW/4 Block 212, all in South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR from the surface of the earth to 12,200' TVD, which is the base of the AMP "B" 12,000' Sand and is the total depth drilled in the Linder Oil Company, A Partnership, STate Lease #340 No. 1 well. Record title interest is now held as follows, effective 4/1/2003: All Blocks EXCLUDING Block 241, South Marsh Island Area, North Addition of Block 240, South Marsh Island Area, North Addition(110218.64) Chevron U.S.A. Inc. 100.00000 % All of Block 241, South Marsh Island Area, North Addition of Block 240, South Marsh Island Area, North Addition(4382.36) Chevron U.S.A. Inc. Apache Corporation 02/02/2005 02/03/2005 02/03/2005 03/09/2005 06/06/2005 06/24/2005 06/24/2005 11/30/2005 12/02/2005 01/04/2006 01/31/2006 02/02/2006 40.00000 % 60.00000 % Apache Corporation designates Chevron U.S.A. Inc. as operator. All of Block 241, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Apache Corporation as operator. NE/4SE/4 of Block 241, South Marsh Island Area, North Addition (#301 Well - API 17-70740395-00) Apache Corporation designates Apache Corporation as operator. NE/4SE/4 of Block 241, South Marsh Island Area, North Addition (#301 Well - API 17-70740395-00) Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. All of Block 217, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. SW/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition (Limited to Well Nos. D & E (API Nos. Pending); and W/2; SW/4NE/4; N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Nippon Oil Exploration U.S.A. Limited as operator. That portion of the SW/4SE/4; SE/4SE/4 of Block 236, South Marsh Island Area, North Addition; that portion of the NW/4NW/4 of Block 242, South Marsh Island Area, North Addition; and that portion of the NE/4NE/4 of Block 243, South Marsh Island Area, North Addition, limited to those depths between the stratigraphic equivalent of the productive sand interval the top of which is 9,640' and the bottom is 11,291'. Devon Energy Production Company, L.P. designates Nippon Oil Exploration U.S.A. Limited as operator. That portion of the SW/4SE/4; SE/4SE/4 of Block 236, South Marsh Island Area, North Addition; SW/4SW/4 of Block 237, South Marsh Island Area, North Addition; that portion of the NW/4NW/4 of Block 242, South Marsh Island, North Addition; and that portion of the NE/4NE/4 of Block 243, South Marsh Island, North Addition, limited to those depths between the stratigraphic equivalent of the productive sand interval the top of which is 9,640' and the bottom is 11,291'. Chevron U.S.A. Inc. designates Nippon Oil Exploration U.S.A. Limited as operator. SW/4SE/4;SE/4SE/4 Block 236, South Marsh Island Area, North Addition and SW/4SW/4 Block 237, South Marsh Island Area, North Addition and NW/4NW/4 242, South Marsh Island Area, North Addition and NE/4NE/4 243, South Marsh Island Area, North Addition limited to those depths between the stratigraphic evuivalent of the productive sand interval the top of which is 9640' and the bottom is 11291'. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. SW/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition, limited to Well No. 225 (API Nos. 177074086700 & 177074086701) and Well Nos. A & B (API Nos. Pending); SE/4SE/4SW/4;SE/4NW/4SE/4 of Block 217, South Marsh Island Area, North Addition; E/2NE/4NW/4 of Block 222, South Marsh Island Area, North Addition; and W/2; SW/4NE/4 and N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. SW/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition (Limited to Well No.225 (API Nos. 177074086700 & 177074086701) and Well Nos. A & B (API Nos. Pending) SE/4SE/4SW/4 and SE/4NW/4SE/4 of Block 217, South Marsh Island Area, North Addition; E/2NE/4NW/4 of Block 222, South Marsh Island Area, North Addition; W/2; SW/4NE/4;N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition; and NE/4NW/4 of Block 228, South Marsh Island Area, North Addition Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. NE1/4SW1/4NW1/4 of Block 236, South Marsh Island Area, North Addition. Operating rights interest is now held as follows, effective 1/1/2005: INSOFAR AND ONLY INSOFAR AS the operating rights covers portions of Block 236, 237, 242, and 243, South Marsh Island Area, from the stratigraphic equivalent of the productive sand interval the top of which is seen at a depth of 9,640 feet in OCS-G 4270 Well No. C-1 and the bottom of which is seen at a depth of 11,291 feet in the OCS-G 4270 Well No. C-3 Nippon Oil Exploration U.S.A. Limited 05/01/2006 09/12/2006 10/06/2006 10/06/2006 10/11/2006 10/11/2006 03/26/2007 03/26/2007 03/26/2007 100.00000 % Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. SE/4SE/4SW/4;SE/4NW/4SE/4 of Block 217, South Marsh Island Area, North Addition; NE/4NW/4;E/2SW/4SE/4 of Block 222, South Marsh Island Area, North Addition; W/2;SW/4NE/4;N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition; and NE/4NW/4 of Block 228, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. NE1/4SE1/4SW1/4 and SE1/4NE1/4SW1/4 of Block 212, South Marsh Isalnd Area, North Addition, SE1/4SE1/4SW1/4 and SE1/4NW1/4SE1/4 of Block 217, South Marsh Isalnd Area, North Addition, NE1/4NW1/4 and E1/2SW1/4SE1/4 of Block 222, South Marsh Isalnd Area, North Addition, W1/2; SW1/4NE1/4 and N1/2NW1/4SE1/4 of Block 224, South Marsh Isalnd Area, North Addition, NE1/4NW1/4 of Block 228, South Marsh Isalnd Area, North Addition. Challenger Minerals Inc. designates El Paso E&P Company, L.P. as operator. SE/4SW/4SW/4 of Block 210, South Marsh Island Area, North Addition limited to well No. 197 (API No. 17-707-40762-00). Chevron U.S.A. Inc. designates El Paso E&P Company, L.P. as operator. SE/4SW/4SW/4 of Block 210, South Marsh Island Area, North Addition limited to well No. 197 (API No. 17-707-40762-00). El Paso Production Company designates El Paso E&P Company, L.P. as operator. SE/4NW/4SE/4 of Block 223, South Marsh Island Area, North Addition from the surface to 30,000' TVD. Chevron U.S.A. Inc. designates El Paso E&P Company, L.P. as operator. SE/4NW/4SE/4 of Block 223, South Marsh Island Area, North Addition from the surface to 30,000' TVD. El Paso Production GOM Inc. (GOM Company Number 1138), merged with and into El Paso E&P Company, L.P. (GOM Company Number 2025), effective 12/31/05. The name of the surviving corporation is El Paso E&P Company, L.P. Chevron U.S.A. Inc. designates El Paso E&P Company, L.P. as operator. SE/4SW/4SW/4 of Block 210, South Marsh Island Area, North Addition. Operating rights interest is now held as follows, effective 12/31/2005: NE1/4; N1/2SE1/4 of Block 238, South Marsh Island Area, North Addition; NW1/4; N1/2SW1/4 of Block 239, South Marsh Island Area, North Addition, from the base of the "O" Sand as seen in Texaco's OCS 0310 Well No. 132 at a depth of 10,318 feet subsea (10,380 feet measured depth) to a depth of 12,000 feet subsea http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page El Paso E&P Company, L.P. Chevron U.S.A. Inc. 03/26/2007 03/26/2007 03/26/2007 03/26/2007 08/10/2007 09/12/2007 09/12/2007 09/25/2007 09/25/2007 11/01/2007 Page 11 of 16 50.00000 % 50.00000 % Challenger Minerals Inc. designates El Paso E&P Company, L.P. as operator. SE/4SW/4SW/4 of Block 210, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates El Paso E&P Company, L.P. as operator. SE/4NE/4 of Block 238, South Marsh Island Area, North Addition. El Paso E&P Company, L.P. designates Chevron U.S.A. Inc. as operator. N/2NE/4;SW/4NE/4;N/2SE/4 of Block 238, South Marsh Island Area, North Addition from 10,318' subsea to 12,000' subsea; and NW/4;N/2SW/4 of Block 239, South Marsh Island Area, North Addition from 10,318' subsea to 12,000' subsea. El Paso E&P Company, L.P. designates El Paso E&P Company, L.P. as operator. SE/4NE/4 of Block 238, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. SE/4NW/4;NE/4SW/4;W/2NW/4SE/4;E/2SE/4SW/4 of Block 212,South Marsh Island Area, North Addition and SE/4SE/4SW/4 and SE/4NW/4SE/4 of Block 217, South Marsh Island Area, North Addition and NE/4NW/4and E/2SW/4SE/4 of Block 222, South Marsh Island Area, North Addition and W/2; SW/4NE/4 and N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition and NE/4NW/4 of Block 228, South Marsh Island Area. and SE/4NW/4;NE/4SW/4;W/2NW/4SE/4;E/2SE/4SW/4 of Block 212, South Marsh Island Area, North Addition Area. and W/2SW/4SE/4 of Block 222, South Marsh Island Area, North Addition Area. and W/2;SW/4NE/4;N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition Area. and NE/4NW/4 of Block 228, South Marsh Island Area, North Addition Area. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. All of Block 217, South Marsh Island Area, North Addition; and N/2;SW/4;N/2SE/4;SE/4SE/4;E/2SW/4SE/4 of Block 222, South Marsh Island Area, North Addition. and W/2W/2;NE/4NW/4;W/2SE/4SW/4;SE/4SE/4SW/4;NE/4;E/2NW/4SE/4;NE/4SE/4;S/2SE/4 of Block 212, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. SE/4NW/4;NE/4SW/4;W/2NW/4SE/4;E/2SE/4SW/4 of Block 212, South Marsh Island Area, North Addition; W/2SW/4SE/4 of Block 222, South Marsh Island Area, North Addition; W/2;SW/4NE/4;N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition; and NE/4NW/4 of Block 228, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. W/2W/2;NE/4NW/4;W/2SE/4SW/4;SE/4SE/4SW/4;NE/4;E/2NW/4SE/4;NE/4SE/4; and S/2SE/4 of Block 212, South Marsh Island Area, North Addition. and N/2NW/4;SW/4NW/4;SW/4;E/2 of Block 212, South Marsh Island Area, North Addition Area. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. SE/4NW/4; NE/4SW/4; W/2NW/4SE/4; NE/4SE/4SW/4 of Block 212, South Marsh Island Area, North Addition; W/2SW/4SE/4 of Block 222, South Marsh Island Area, North Addition; W/2; SW/4NE/4; N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition; and NE/4NW/4 of Block 228, South Marsh Island Area, North Addition. and SE/4NW/4;NW/4NW/4SE/4;NE/4NE/4SW/4 of Block 212, South Marsh Island Area, North Addition Area. Operating rights interest is now held as follows, effective 6/30/2006: S1/2S1/2 of Block 216, South Marsh Island Area; and All of Block 223, South Marsh Island Area, limited to those depths from surface to 30,000 feet TVD Chevron U.S.A. Inc. El Paso E&P Company, L.P. 11/01/2007 11/01/2007 11/01/2007 11/01/2007 12/06/2007 04/04/2008 06/04/2008 06/04/2008 06/04/2008 06/04/2008 06/04/2008 06/04/2008 06/04/2008 06/04/2008 06/04/2008 06/04/2008 45.00000 % 55.00000 % Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N1/2; SW1/4; S1/2SE1/4; NE1/4SE1/4; N1/2NW1/4SE1/4; SW1/4NW1/4SE1/4 of Block 223, South Marsh Island Area, North Addition from surface to 30000' TVD. El Paso E&P Company, L.P. designates Chevron U.S.A. Inc. as operator. N/2;SW/4;S/2SE/4;NE/4SE/4;N/2NW/4SE/4;SW/4NW/4SE/4 of Block 223 and S/2S/2 of Block 216, South Marsh Island Area, North Addition from surface to 30,000" SS TVD. El Paso Production Company (GOM Company Number 236) merged with and into El Paso E&P Company, L.P. (GOM Company Number 2025), effective 06/30/06. The name of the surviving corporation is El Paso E&P Company, L.P.(GOM Company Number (2025). Chevron U.S.A. Inc. designates El Paso E&P Company, L.P. as operator. SE/4NW/4SE/4 of Block 223, South Marsh Island Area, North Addition from the surface to 30,000' TVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N/2NW/4;SW/4NW/4;SW/4;E/2 of Block 212, South Marsh Island Area, North Addition. and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition from 12200' TVD and below. and S/2N/2;NE/4NE/4;E/2NW/4NE/4;W/2NW/4NW/4;SE/4NW/4NW/4;S/2S/2;NW/4SW/4;S/2NE/4SW/4;NW/4NE/4SW/4;NE/4SE/4;S/2NW/4SE/4;NE/4NW/4SE/4 of Block 212, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. NW/4NW/4SE/4; NE/4NE/4SW/4 of Block 212, South Marsh Island Area, North Addition; W/2SW/4SE/4 of Block 222, South Marsh Island Area, North Addition; W/2;SW/4NE/4;N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition; W/2NW/4NE/4 of Block 217, South Marsh Island Area, North Addition; and NE/4NW/4 of Block 228, South Marsh Island Area, North Addition. Merit Energy Partners F-III, L.P. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition from surface to 12200' TVD. PALACE EXPLORATION COMPANY designates Chevron U.S.A. Inc. as operator. W/2SW/4SE/4;SE/4SW/4; S/2NE/4SW/4;NW/4NE/4SW/4;E/2NW/4SW/4;SW/4SW/4NW/4 of Block 217, South Marsh Island, North Addition. Merit Management Partners III, L.P. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition; and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition Area from surface to 12200' TVD. Merit Management Partners II, L.P. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition Area. and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition Area from surface to 12200' TVD. Merit Energy Partners III, L.P. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition Area. and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition Area from surface to 12200' TVD. Merit Energy Partners E-III, L.P. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition from surface to 12200' TVD. Merit Energy Partners D-III, L.P. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition Area. and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition Area from surface to 12200' TVD. McMoRan Oil & Gas LLC designates Chevron U.S.A. Inc. as operator. W/2SW/4SE/4;SE/4SW/4;S/2NE/4SW/4;NW/4NE/4SW/4;E/2NW/4SW/4;SW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition. El Paso E&P Company, L.P. designates Chevron U.S.A. Inc. as operator. SE/4NE/4 of Block 238, South Marsh Island Area, North Addition. Operating rights interest is now held as follows, effective 12/14/2004: W1/2SW1/4SE1/4;SE1/4SW1/4;S1/2NE1/4SW1/4;NW1/4NE1/4SW1/4;E1/2NW1/4SW1/4;SW1/4SW1/4NW1/4 of Block 217, South Marsh Island Area, North Addition, limited to those depths below 12,035' MD, being the base of the Amph "B" Sand, as seen in Texaco's OCS-310 Well No. 52 to a depth of 99,999' TVD Chevron U.S.A. Inc. PALACE EXPLORATION COMPANY McMoRan Oil & Gas LLC 06/04/2008 45.00000 % 27.50000 % 27.50000 % Merit Management Partners I, L.P. designates Burlington Resources Offshore Inc. as operator. SE/4NW/4SW/4;SW/4NE/4SW/4;SW/4SW/4SE/4;SE/4SW/4;E/2SW/4SW/4 of Block 207, South Marsh Island Area, North Addition Area. and NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition Area from surface to 12200' TVD. http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page 06/04/2008 Page 12 of 16 Operating rights interest is now held as follows, effective 1/1/2006: SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area, North Addition; and NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR from the surface of the earth to 12,200' TVD, which is the base of the amp "B" 12,000' sand and is the total depth drilled in the Linder Oil Company, A Partnership State Lease 340 No. 1 Well Chevron U.S.A. Inc. Merit Energy Partners III, L.P. Merit Management Partners I, L.P. Merit Management Partners II, L.P. Merit Management Partners III, L.P. Merit Energy Partners D-III, L.P. Merit Energy Partners E-III, L.P. Merit Energy Partners F-III, L.P. 06/04/2008 50.00000 % .50000 % 23.54300 % 7.88500 % 15.76900 % .88200 % .49000 % .93100 % Operating rights interest is now held as follows, effective 11/1/2007: NE1/4; N1/2SE1/4 of Block 238, South Marsh Island Area, North Addition; NW1/4; N1/2SW1/4 of Block 239, South Marsh Island Area, North Addition, from the base of the "O" Sand as seen in Texaco's OCS 0310 Well No. 132 at a depth of 10,318 feet subsea (10,380 feet measured depth) to a depth of 12,000 feet subsea Chevron U.S.A. Inc. 06/04/2008 09/16/2008 09/16/2008 11/06/2008 04/10/2009 05/15/2009 08/28/2009 09/29/2009 09/29/2009 09/29/2009 09/29/2009 100.00000 % Merger of Interest Approved. The owner of the record title interest and operating rights covering a portion of Block 238, South Marsh Island Area, North Addition, and Block 239, South Marsh Island Area requested that the record title and operating rights ownership be merged and made whole. The operating rights and the corresponding record title interest are commonly owned and therefore are now merged. As a result of such merging of interest, these operating rights are no longer severed. See file for complete description.Merger of Interest Approved. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. NE/4NW/4;W/2NW/4NE/4;NE/4NW/4NW/4 of Block 212, South Marsh Island Area, North Addition, all depths below 12200' TVD and S/2N/2;NE/4NE/4;E/2NW/4NE/4;W/2NW/4NW/4;SE/4NW/4NW/4;S/2S/2;NW/4SW/4;S/2NE/4SW/4;NW/4NE/4SW/4;NE/4SE/4;S/2NW/4SE/4; and NE/4NW/4SE/4 of Block 212, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. NW/4NW/4SE/4;NE/4NE/4SW/4 of Block 212, South Marsh Island Area, North Addition and W/2NW/4NE/4 of Block 217, South Marsh Island Area, North Addition and W/2SW/4SE/4 of Block 222, South Marsh Island Area, North Addition and W/2;SW/4NE/4;N/2NW/4SE/4 of Block 224, South Marsh Island Area, North Addition and NE/4NW/4 of Block 228, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. NW/4NW/4SE/4 and NE/4NE/4SW/4 of Block 212, South Marsh Island Area, North Addition. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. SE/4 of Block 218, South Marsh Island Area, North Addition from 16,405' TVD to 99,999' TVD. and THAT PORTION of Block 230, South Marsh Island Area, North Addition Area from 19840 to 99999' TVD. and THAT PORTION of Block 231, South Marsh Island Area, North Addition Area from 19840 to 99999' TVD. and THAT PORTION of Block 235, South Marsh Island Area, North Addition Area from 19840 to 99999' TVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. W/2NW/4NE/4 of Block 217, South Marsh Island Area, North Addition. and E/2E/2E/2 of Block 218, South Marsh Island Area, North Addition Area. and ALL OF BLOCK 240, South Marsh Island Area, North Addition Area from 12450 to 99999' TVD. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. That Portion of Blocks 230, 231, and 235, South Marsh Island Area, North Addition, from 19,840' TVD SS down to 99,999' TVD SS and W/2SE/4SE/4;E/2SW/4SE/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and W/2SE/4SE/4;E/2SW/4SE/4 of Block 217, South Marsh Island Area, North Addition. PALACE EXPLORATION COMPANY designates Chevron U.S.A. Inc. as operator. SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition from 12,035 to 15,321' TVD. Plains Exploration & Production Company designates Chevron U.S.A. Inc. as operator. of Block 217, South Marsh Island Area, North Addition Area. and NE/4NE/4;E/2NW/4NE/4;S/2NE/4;N/2NW/4;N/2SE/4;SE/4SE/4;E/2SW/4SE/4;SW/4SW/4;W/2NW/4SW/4;NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E/2E/2E/2 of Block 218, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E/2NE/4NE/4;NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and NE/4NE/4; E/2NW/4NE/4; S/2NE/4; N/2NW/4; N/2SE/4; SE/4SE/4; E/2SW/4SE/4; SW/4SW/4; W/2NW/4SW/4; NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E/2NE/4NE/4; NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition from 12035 to 99999' TVD. McMoRan Oil & Gas LLC designates Chevron U.S.A. Inc. as operator. SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition from 12,035 to 15,321' TVD and NE/4NE/4;E/2NW/4NE/4;S/2NE/4;N/2NW/4;N/2SE/4;SE/4SE/4;E/2SW/4SE/4;SW/4SW/4;W/2NW/4SW/4;NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition Area from 12035 to 99999' TVD. and E/2E/2E/2 of Block 218, South Marsh Island Area, North Addition Area from 12035 to 99999' TVD. and E/2NE/4NE/4;NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition Area from 12035 to 99999' TVD. and NE/4NE/4; E/2NW/4NE/4; S/2NE/4; N/2NW/4; N/2SE/4; SE/4SE/4; E/2SW/4SE/4; SW/4SW/4; W/2NW/4SW/4; NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition Area from 12035 to 99999' TVD. and E/2NE/4NE/4; NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and ALL OF BLOCK 212, South Marsh Island Area, North Addition from 12200 to 99999' TVD. and ALL OF BLOCK 212, South Marsh Island Area, North Addition from 12200 to 99999' TVD. and SE1/4NW1/4; E1/2SW1/4NW1/4; NW1/4SW1/4NW1/4 of Block 217, South Marsh Island Area, North Addition from 15321 to 99999' TVD. and E1/2E1/2NE1/4 of Block 218, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E1/2E1/2E1/2 of Block 218, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and NE1/4; N1/2NW1/4; N1/2SE1/4; E1/2SE1/4SE1/4; SW1/4SW1/4; W1/2NW1/4SW1/4; NE1/4NE1/4SW1/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E1/2E1/2 of Block 218, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and N1/2N1/2; N1/2S1/2N1/2 of Block 221, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E1/2E1/2E1/2 of Block 218, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E1/2NE1/4NE1/4; NE1/4SE1/4NE1/4 of Block 221, South Marsh Island Area, North Addition from 12035 to 99999' TVD. Operating rights interest is now held as follows, effective 2/27/2007: SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addtion, INSOFAR and ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 15,321' TVD. Chevron U.S.A. Inc. McMoRan Oil & Gas LLC PALACE EXPLORATION COMPANY 09/29/2009 09/29/2009 09/29/2009 45.00000 % 27.50000 % 27.50000 % McMoRan Oil & Gas LLC designates Chevron U.S.A. Inc. as operator. That Portion of Block 212, South Marsh Island Area, North Addition, from 12,200' TVD down to 99,999' TVD. Plains Exploration & Production Company designates Chevron U.S.A. Inc. as operator. That Portion of Block 212, South Marsh Island Area, North Addition, from 12,200' TVD down to 99,999' TVD. Operating rights interest is now held as follows, effective 9/17/2007: That portion of Block 212, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, as to those depths from 12,200' TVD to 99,999' TVD. Chevron U.S.A. Inc. McMoRan Oil & Gas LLC 45.00000 % 25.00000 % http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page Plains Exploration & Production Company 09/29/2009 Page 13 of 16 30.00000 % Operating rights interest is now held as follows, effective 2/27/2007: SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR as the Lease covers those subsurface depths from 15,321' TVD to 99,999'TVD. Chevron U.S.A. Inc. McMoRan Oil & Gas LLC Plains Exploration & Production Company 09/29/2009 09/29/2009 09/29/2009 09/29/2009 09/29/2009 45.00000 % 25.00000 % 30.00000 % McMoRan Oil & Gas LLC designates Chevron U.S.A. Inc. as operator. SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition from 15321' to 99999' TVD. Plains Exploration & Production Company designates Chevron U.S.A. Inc. as operator. SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition from 15321' to 99999' TVD. Plains Exploration & Production Company designates Chevron U.S.A. Inc. as operator. NE/4; N/2NW/4; N/2SE/4; SE/4SE/4; E/2SW/4SE/4; SW/4SW/4; W/2NW/4SW/4; NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition; E/2E/2E/2 of Block 218, South Marsh Island Area, North Addition; E/2NE/4NE/4; NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition; N/2N/2; N/2S/2N/2 of Block 222, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 99,999' TVD. McMoRan Oil & Gas LLC designates Chevron U.S.A. Inc. as operator. NE/4; N/2NW/4; N/2SE/4; SE/4SE/4; E/2SW/4SE/4; SW/4SW/4; W/2NW/4SW/4; NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition; E/2E/2E/2 of Block 218, South Marsh Island Area, North Addition; E/2NE/4NE/4; NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition; N/2N/2; N/2S/2N/2 of Block 222, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 99,999' TVD. Operating rights interest is now held as follows, effective 2/27/2007: NE/4; N/2NW/4; N/2SE/4; SE/4SE/4; E/2SW/4SE/4; SW/4SW/4; W/2NW/4SW/4; NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition; E/2E/2E/2 of Block 218, South Marsh Island Area, North Addition; E/2NE/4NE/4; NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition; N/2N/2; N/2S/2N/2 of Block 222, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 99,999' TVD. Chevron U.S.A. Inc. McMoRan Oil & Gas LLC Plains Exploration & Production Company 01/29/2010 03/02/2010 45.00000 % 25.00000 % 30.00000 % Unit Contract No. 14-08-0001-20252 terminated by operation of law, effective 10/1/2009. Operating rights interest is now held as follows, effective 10/19/2009: Those portions of Blocks 230, 231 and 235, South Marsh Island Area, North Addition as to depths below 19,840' TVD SS down to 99,999' TVD SS. McMoRan Oil & Gas LLC 03/16/2010 07/01/2010 07/01/2010 07/01/2010 07/28/2010 10/01/2010 100.00000 % Unit Contract No. 891020252 terminated, effective 10/01/2009. The unit consisted of 00310, G02595, G04270, G04437. Chevron U.S.A. Inc. designates McMoRan Oil & Gas LLC as operator. W1/2SE1/4SE1/4; E1/2SW1/4SE1/4 of Block 217, South Marsh Island Area, North Addition. and W1/2SE1/4SE1/4; E1/2SW1/4SE1/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E1/2E1/2SE1/4 of Block 217, South Marsh Island Area, North Addition from 16405 to 99999' TVD. McMoRan Oil & Gas LLC designates McMoRan Oil & Gas LLC as operator. W1/2SE1/4SE1/4; E1/2SW1/4SE1/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and W1/2SE1/4SE1/4; E1/2SW1/4SE1/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD. and E1/2E1/2SE1/4 of Block 217, South Marsh Island Area, North Addition from 16405 to 99999' TVD. Plains Exploration & Production Company designates McMoRan Oil & Gas LLC as operator. W1/2SE1/4SE1/4; E1/2SW1/4SE1/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD. Unit Contract No. 754310008 approved, effective 07/28/2010. The unit consists of 00310, G02300, G26013, G26014, G27896, G27897. Operating rights interest is now held as follows, effective 3/1/2010: W1/2SW1/4SE1/4;SE1/4SW1/4;S1/2NE1/4SW1/4;NW1/4NE1/4SW1/4;E1/2NW1/4SW1/4;SW1/4SW1/4NW1/4 of Block 217, South Marsh Island Area, North Addition, limited to those depths below 12,035' MD, being the base of the Amph "B" Sand, as seen in Texaco's OCS-310 Well No. 52 to a depth of 99,999' TVD PALACE EXPLORATION COMPANY Chevron U.S.A. Inc. McMoRan Oil & Gas LLC RoDa Drilling, LP 10/01/2010 10/01/2010 4.12500 % 45.00000 % 27.50000 % 23.37500 % RoDa Drilling, LP designates Chevron U.S.A. Inc. as operator. W/2SW/4SE/4;SE/4SW/4;S/2NE/4SW/4;NW/4NE/4SW/4;E/2NW/4SW/4;SW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition limited to those depths below 12035' MD to 99999' TVD. Operating rights interest is now held as follows, effective 3/1/2010: SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addtion, INSOFAR and ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 15,321' TVD. Chevron U.S.A. Inc. McMoRan Oil & Gas LLC PALACE EXPLORATION COMPANY RoDa Drilling, LP 10/01/2010 01/20/2011 45.00000 % 27.50000 % 4.12500 % 23.37500 % RoDa Drilling, LP designates Chevron U.S.A. Inc. as operator. SE/4NW/4;E/2SW/4NW/4;NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition from 12035' to 15321 TVD. Operating rights interest is now held as follows, effective 8/1/2010: That portion of Block 212, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, as to those depths from 12,200' TVD to 99,999' TVD. Chevron U.S.A. Inc. McMoRan Oil & Gas LLC PXP Offshore LLC 01/20/2011 01/20/2011 45.00000 % 25.00000 % 30.00000 % PXP Offshore LLC designates Chevron U.S.A. Inc. as operator. That portion of Block 212, South Marsh Island Area, North Addition,as to those depths from 12,200' SSTVD to 99,999' SSTVD. Operating rights interest is now held as follows, effective 8/1/2011: http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page Page 14 of 16 SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR as the Lease covers those subsurface depths from 15,321' TVD to 99,999'TVD. Chevron U.S.A. Inc. McMoRan Oil & Gas LLC PXP Offshore LLC 01/20/2011 01/20/2011 45.00000 % 25.00000 % 30.00000 % PXP Offshore LLC designates Chevron U.S.A. Inc. as operator. SE1/4NW1/4; E1/2SW1/4NW1/4; NW1/4SW1/4NW1/4 of Block 217, South Marsh Island Area, North Addition from 15321 to 99999' TVD. Operating rights interest is now held as follows, effective 8/1/2010: NE/4; N/2NW/4; N/2SE/4; SE/4SE/4; E/2SW/4SE/4; SW/4SW/4; W/2NW/4SW/4; NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition; E/2E/2E/2 of Block 218, South Marsh Island Area, North Addition; E/2NE/4NE/4; NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition; N/2N/2; N/2S/2N/2 of Block 222, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 99,999' TVD. McMoRan Oil & Gas LLC PXP Offshore LLC Chevron U.S.A. Inc. 01/20/2011 01/20/2011 06/15/2011 07/06/2011 07/06/2011 07/06/2011 07/06/2011 07/06/2011 07/06/2011 08/25/2011 08/25/2011 08/25/2011 08/25/2011 09/23/2011 25.00000 % 30.00000 % 45.00000 % PXP Offshore LLC designates McMoRan Oil & Gas LLC as operator. W1/2SE1/4SE1/4; E1/2SW1/4SE1/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD; and E1/2E1/2SE1/4 of Block 217, South Marsh Island Area, North Addition from 16405 to 99999' TVD. PXP Offshore LLC designates Chevron U.S.A. Inc. as operator. NE1/4; N1/2NW1/4; N1/2SE1/4; E1/2SE1/4SE1/4; SW1/4SW1/4; W1/2NW1/4SW1/4; NE1/4NE1/4SW1/4 of Block 217, South Marsh Island Area, North Addition from 12035 to 99999' TVD; and E1/2E1/2E1/2 of Block 218, South Marsh Island Area, North Addition from 12035 to 99999' TVD; and E1/2NE1/4NE1/4; NE1/4SE1/4NE1/4 of Block 221, South Marsh Island Area, North Addition from 12035 to 99999' TVD. N1/2N1/2; N1/2S1/2N1/2 of Block 222, South Marsh Island Area, North Addition from 12035 to 99999' TVD. Nippon Oil Exploration U.S.A. Limited changed its name to JX Nippon Oil Exploration (U.S.A.) Limited effective on 06/15/2011 Apache Corporation designates Chevron U.S.A. Inc. as operator. ALL OF BLOCK 241, South Marsh Island Area, North Addition from 12450' TVD down to 99,999' TVD. Apache Corporation designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 241, South Marsh Island Area, North Addition from surface to 12450' TVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. ALL OF BLOCK 241, South Marsh Island Area, North Addition from 12450' TVD down to 99,999' TVD. Chevron U.S.A. Inc. designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 241, South Marsh Island Area, North Addition from surface to 12450' TVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. All of Block 240, South Marsh Island Area, North Addition, all depths from 12,450' TVD to 99,999 TVD. Chevron U.S.A. Inc. designates Hilcorp Energy GOM, LLC as operator. All of Block 240, South Marsh Island Area, North Addition from surface down to 12,450' TVD. Chevron U.S.A. Inc. designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 239, South Marsh Island Area, North Addition from the surface to 12000' TVD. and N1/2NE1/4; SW1/4NE1/4; NW1/4; S1/2 of Block 240, South Marsh Island Area, North Addition from surface to 12450' TVD. and SE1/4NE1/4 of Block 240, South Marsh Island Area, North Addition from surface to 15210' TVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. ALL OF BLOCK 239, South Marsh Island Area, North Addition from 12000 to 99999' TVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. ALL OF BLOCK 238, South Marsh Island Area, North Addition from 12000 to 99999' TVD. Chevron U.S.A. Inc. designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 238, South Marsh Island Area, North Addition from the surface down to 12000' TVD. Operating rights interest is now held as follows, effective 1/1/2011: SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area, North Addition; and NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR from the surface of the earth to 12,200' TVD, which is the base of the amp "B" 12,000' sand and is the total depth drilled in the Linder Oil Company, A Partnership State Lease 340 No. 1 Well Chevron U.S.A. Inc. Black Elk Energy Offshore Operations, LLC 09/23/2011 10/03/2011 10/07/2011 50.00000 % 50.00000 % Black Elk Energy Offshore Operations, LLC designates Burlington Resources Offshore Inc. as operator. SE1/4NW1/4SW1/4; SW1/4NE1/4SW1/4; SW1/4SW1/4SE1/4; SE1/4SW1/4; E1/2SW1/4SW1/4 of Block 207, South Marsh Island Area, North Addition, and NE1/4NW1/4; W1/2NW1/4NE1/4; NE1/4NW1/4NW1/4 of Block 212, South Marsh Island Area, North Addition from surface to 12200' TVD. PXP Offshore LLC changed its name to McMoRan Offshore LLC effective 6/16/11. Operating rights interest is now held as follows, effective 7/1/2011: All of Block 240, South Marsh Island Area, North Addition, limited to those depths from the surface down to 12,450' TVD. Hilcorp Energy GOM, LLC 10/07/2011 10/07/2011 10/07/2011 100.00000 % Hilcorp Energy GOM, LLC designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 240, South Marsh Island Area, North Addition from surface to 12450' TVD. Hilcorp Energy GOM, LLC designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 241, South Marsh Island Area, North Addition from surface to 12450' TVD. Operating rights interest is now held as follows, effective 7/1/2011: All of Block 241, South Marsh Island Area, North Addition, limited to those depths from the surface down to 12,450' TVD. Apache Corporation Hilcorp Energy GOM, LLC 01/09/2012 60.00000 % 40.00000 % Operating rights interest is now held as follows, effective 10/19/2009: Those portions of Blocks 230, 231 and 235, South Marsh Island Area, North Addition as to depths below 19,840' TVD SS down to 99,999' TVD SS. McMoRan Oil & Gas LLC Energy XXI GOM, LLC Moncrief Offshore LLC 72.00000 % 18.00000 % 10.00000 % 01/09/2012 Energy XXI GOM, LLC designates McMoRan Oil & Gas LLC as operator. THAT PORTION OF BLOCKS 230, 231, and 235, South Marsh Island Area, North Addition from 19840 to 99999' TVD SS. 01/09/2012 McMoRan Oil & Gas LLC designates McMoRan Oil & Gas LLC as operator. THAT PORTION OF BLOCKS 230, 231, and 235, South Marsh Island Area, http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page 01/09/2012 03/27/2012 03/27/2012 Page 15 of 16 North Addition from 19840 to 99999' TVD SS. Moncrief Offshore LLC designates McMoRan Oil & Gas LLC as operator. THAT PORTION OF BLOCKS 230, 231, and 235, South Marsh Island Area, North Addition from 19840 to 99999' TVD SS. McMoRan Offshore LLC (Company No. 03178) merged with and into McMoRan Oil & Gas LLC (Company No. 02312), effective 10/01/2011. The name of the surviving company is McMoRan Oil & Gas LLC (Company No. 02312). Operating rights interest is now held as follows, effective 10/1/2011: That portion of Block 212, South Marsh Island Area, North Addition, OCS Leasing Map, Louisiana Map No. 3D, seaward of a line established by the 1975 Decree entered in the U.S. vs. Louisiana, No. 9 Original, as to those depths from 12,200' TVD to 99,999' TVD. McMoRan Oil & Gas LLC Chevron U.S.A. Inc. 03/27/2012 55.00000 % 45.00000 % Operating rights interest is now held as follows, effective 10/1/2011: SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR as the Lease covers those subsurface depths from 15,321' TVD to 99,999'TVD. McMoRan Oil & Gas LLC Chevron U.S.A. Inc. 03/27/2012 55.00000 % 45.00000 % Operating rights interest is now held as follows, effective 10/1/2011: NE/4; N/2NW/4; N/2SE/4; SE/4SE/4; E/2SW/4SE/4; SW/4SW/4; W/2NW/4SW/4; NE/4NE/4SW/4 of Block 217, South Marsh Island Area, North Addition; E/2E/2E/2 of Block 218, South Marsh Island Area, North Addition; E/2NE/4NE/4; NE/4SE/4NE/4 of Block 221, South Marsh Island Area, North Addition; N/2N/2; N/2S/2N/2 of Block 222, South Marsh Island Area, North Addition, INSOFAR AND ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 99,999' TVD. McMoRan Oil & Gas LLC Chevron U.S.A. Inc. 05/18/2012 55.00000 % 45.00000 % Operating rights interest is now held as follows, effective 11/1/2011: SE1/4SW1/4; SW1/4SW1/4; SW1/4SE1/4; SE1/4SE1/4 of Block 210, South Marsh Island Area, North Addition; SW1/4SW1/4 of Block 211, South Marsh Island Area, North Addition, from the surface down to 13,564 feet measured depth Chevron U.S.A. Inc. 05/18/2012 05/18/2012 05/18/2012 07/05/2012 07/05/2012 07/13/2012 07/13/2012 07/13/2012 100.00000 % Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N1/2; N1/2S1/2; SE1/4SW1/4; N1/2SW1/4SW1/4; SW1/4SW1/4SW1/4; S1/2SE1/4 of Block 210, South Marsh Island Area, North addition; and all of Block 211, South Marsh Island Area, North Addition. and N1/2NE1/4; SW1/4NE1/4; NW1/4; S1/2 of Block 240, South Marsh Island Area, North Addition from 12450 to 99999' TVD. and SE1/4NE1/4 of Block 240, South Marsh Island Area, North Addition from 15120 to 99999' TVD. Chevron U.S.A. Inc. designates El Paso E&P Company, L.P. as operator. SE1/4SW1/4SW1/4 of Block 210, South Marsh Island Area, North Addition. Merging of Interest approved. The owner of the record title interest and operating rights covering a portion of Block 210 and 211, South Marsh Island Area, North Addition, requested that the record title and operating rights ownership be merged and made whole. The operating rights and the corresponding record title interest are commonly owned and therefore are now merged. As a result of such merging of interest, the operating rights are no longer severed. See file for complete description. Chevron U.S.A. Inc. designates Hilcorp Energy GOM, LLC as operator. N1/2NE1/4; SW1/4NE1/4; NW1/4; S1/2 of Block 240, South Marsh Island Area, North Addition from surface to 12450' SSTVD; and SE1/4NE1/4 of Block 240, South Marsh Island Area, North Addition from surface down to 15210' SSTVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N1/2NE1/4; SW1/4NE1/4; NW1/4; S1/2 of Block 240, South Marsh Island Area, North Addition from 12450' SSTVD to 99999' SSTVD; and SE1/4NE1/4 of Block 240, South Marsh Island Area, North Addition from 15210' SSTVD to 99999' SSTVD. Hilcorp Energy GOM, LLC designates Hilcorp Energy GOM, LLC as operator. NW1/4SW1/4 of Block 238, South Marsh Island Area, North Addition from 12000 to 12573' TVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N1/2; N1/2S1/2; SE1/4SW1/4; N1/2SW1/4SW1/4; SW1/4SW1/4SW1/4; S1/2SE1/4 of Block 210, South Marsh Island Area, North Addition. Operating rights interest is now held as follows, effective 10/1/2011: W1/2SW1/4SE1/4;SE1/4SW1/4;S1/2NE1/4SW1/4;NW1/4NE1/4SW1/4;E1/2NW1/4SW1/4;SW1/4SW1/4NW1/4 of Block 217, South Marsh Island Area, North Addition, limited to those depths below 12,035' MD, being the base of the Amph "B" Sand, as seen in Texaco's OCS-310 Well No. 52 to a depth of 99,999' TVD PALACE EXPLORATION COMPANY Chevron U.S.A. Inc. McMoRan Oil & Gas LLC 07/13/2012 4.12500 % 59.50862 % 36.36638 % Operating rights interest is now held as follows, effective 10/1/2011: SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addtion, INSOFAR and ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 15,321' TVD. McMoRan Oil & Gas LLC Chevron U.S.A. Inc. PALACE EXPLORATION COMPANY 07/13/2012 36.36638 % 59.50862 % 4.12500 % Operating rights interest is now held as follows, effective 1/1/2012: W1/2SW1/4SE1/4;SE1/4SW1/4;S1/2NE1/4SW1/4;NW1/4NE1/4SW1/4;E1/2NW1/4SW1/4;SW1/4SW1/4NW1/4 of Block 217, South Marsh Island Area, North Addition, limited to those depths below 12,035' MD, being the base of the Amph "B" Sand, as seen in Texaco's OCS-310 Well No. 52 to a depth of 99,999' TVD Chevron U.S.A. Inc. McMoRan Oil & Gas LLC 07/13/2012 59.50862 % 40.49138 % Operating rights interest is now held as follows, effective 1/1/2012: SE/4NW/4; E/2SW/4NW/4; NW/4SW/4NW/4 of Block 217, South Marsh Island Area, North Addtion, INSOFAR and ONLY INSOFAR as the Lease covers those subsurface depths from 12,035' TVD to 15,321' TVD. Chevron U.S.A. Inc. 59.50862 % http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012 Serial Register Page McMoRan Oil & Gas LLC 07/13/2012 07/13/2012 07/13/2012 07/13/2012 Page 16 of 16 40.49138 % Chevron U.S.A. Inc. designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 238, South Marsh Island Area, North Addition Area from surface to 12000' TVD; and SE1/4NE1/4SE1/4; NE1/4SE1/4SE1/4 of Block 238, South Marsh Island Area, North Addition from 12000' SSTVD down to 16142' SSTVD. Hilcorp Energy GOM, LLC designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 238, South Marsh Island Area, North Addition Area from surface to 12000' TVD. Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N1/2; SW1/4; E1/2SE1/4; N1/2NE1/4SE1/4; SW1/4NE1/4SE1/4; S1/2SE1/4SE1/4; NW1/4SE1/4SE1/4 of Block 238, South Marsh Island Area, North Addition from 12000' SSTVD to 16142' SSTVD; and ALL OF BLOCK 238, South Marsh Island Area, North Addition Area from 16142' SSTVD to 99999' SSTVD. Operating rights interest is now held as follows, effective 7/1/2011: All of Block 238, South Marsh Island Area, North Addition, limited to those depths from the surface down to 12,000' SSTVD. Hilcorp Energy GOM, LLC 07/13/2012 07/13/2012 07/13/2012 07/13/2012 100.00000 % Chevron U.S.A. Inc. designates Chevron U.S.A. Inc. as operator. N1/2; NE1/4SW1/4; S1/2SW1/4; SE1/4 of Block 239, South Marsh Island Area, North Addition from 12000' SSTVD to 99999' SSTVD; and NW1/4SW1/4 of Block 239, South Marsh Island Area, North Addition from 12573' SSTVD to 99999' SSTVD. Chevron U.S.A. Inc. designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 239, South Marsh Island Area, North Addition from surface down to 12000' SSTVD; and NW1/4SW1/4 of Block 239, South Marsh Island Area, North Addition from 12000' SSTVD to 12573' SSTVD. Hilcorp Energy GOM, LLC designates Hilcorp Energy GOM, LLC as operator. ALL OF BLOCK 239, South Marsh Island Area, North Addition from surface down to 12000' SSTVD. Operating rights interest is now held as follows, effective 7/1/2011: All of Block 239, South Marsh Island Area, North Addition, limited to those depths from the surface down to 12,000' SSTVD. Hilcorp Energy GOM, LLC 07/16/2012 09/12/2012 09/12/2012 09/12/2012 100.00000 % El Paso E&P Company, L.P. changed its name to EP Energy E&P Company, L.P. effective on 06/01/2012 EP Energy E&P Company, L.P. designates Energy XXI GOM, LLC as operator. SE/4NW/4SE/4 of Block 223, South Marsh Island Area, North Addition, from the surface to 30000' TVD. Chevron U.S.A. Inc. designates Energy XXI GOM, LLC as operator. SE/4NW/4SE/4 of Block 223, South Marsh Island Area, North Addition, from the surface to 30000' TVD;and SE1/4SW1/4SW1/4 of Block 210, South March Island Area, North Addition, all depths. EP Energy E&P Company, L.P. designates Chevron U.S.A. Inc. as operator. N1/2; SW1/4; S1/2SE1/4; NE1/4SE1/4; N1/2NW1/4SE1/4; SW1/4NW1/4SE1/4 of Block 223, South Marsh Island Area, North Addition from surface to 30000' TVD. Back to The Serial Register Page Online Query http://www.data.boem.gov/homepg/data_center/leasing/serialregister/srlist.asp 10/10/2012