Anadarko group has gulf find at Heidelberg

A group led by Anadarko Petroleum Corp. gauged Anadarko's seventh discovery since 2005 in the Middle Miocene trend in the deepwater Gulf of Mexico.

By OGJ editors
HOUSTON, Feb. 2 -- A group led by Anadarko Petroleum Corp. gauged Anadarko's seventh discovery since 2005 in the Middle Miocene trend in the deepwater Gulf of Mexico.

The Heidelberg prospect in 5,000 ft of water in Green Canyon Block 859 cut more than 200 ft of net oil pay in several high-quality Miocene sands. TD is 28,500 ft.

Heidelberg encountered the same-age sands and reservoir characteristics similar to the Caesar-Tonga discoveries 7-14 miles north, and each of the seven discoveries targeted a resource of more than 100 million bbl, Anadarko said.

Heidelberg is 18 miles southeast of Anadarko's 100% owned Constitution spar, allowing multiple development options after further appraisal, which Anadarko plans to conduct in the second half of 2009.

Anadarko operates GC859 with 44.25% working interest. Partners in the discovery include Mariner Energy Inc. and Eni SpA 12.5% each, StatoilHydro 12%, and ExxonMobil Corp. and Houston private firm Cobalt International Energy LP 9.375% each.

Cobalt said Heidelberg is adjacent to four 100% Cobalt working interest leases acquired in the March 2008 lease sale for a combined $127.6 million. They are blocks 813, 814, 858, and 902. Cobalt, formed in 2005, has a working interest in 142 gulf leases.

Anadarko's next prospect is Vito, a 30,500-ft Miocene test in 4,000 ft of water in Mississippi Canyon Block 984 on trend with the Kodiak and Freedom discoveries. Anadarko operates Vito with 20% working interest.

Anadarko, operator with 30% working interest, is drilling the Shenandoah Lower Tertiary prospect in Walker Ridge Block 52.

The company plans to spud the Samurai Middle and Lower Miocene prospect in Green Canyon Block 432 in the first quarter of 2009. Anadarko is operator with 33.33% working interest.

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