The Shenandoah-2 well, located in Walker Ridge block 51, was drilled to a total depth of 31,405 feet (9,572 meters) in approximately 5,800 feet (1,768 meters) of water, more than 1 mile southwest and approximately 1,700 feet structurally down-dip from the Shenandoah-1 discovery.

Similar to the initial Shenandoah discovery well, log and pressure data from the Shenandoah-2 well indicate excellent-quality reservoir and fluid properties. The well was drilled to test the down-dip extent of the accumulation, and the targeted sands were full to base with no oil-water contact.

The successful Shenandoah-2 well marks one of Anadarko’s largest oil discoveries in the Gulf of Mexico, with more than 1,000 net feet of oil pay and reservoir rock and fluid properties of much higher quality than previously encountered by industry in Lower Tertiary discoveries.

—Bob Daniels, Anadarko Sr. Vice President Deepwater and International Exploration

Anadarko is the operator of the Shenandoah-2 well and the previously announced Shenandoah-1 discovery well, located in Walker Ridge block 52, with a 30% working interest. Other co-owners in Shenandoah are ConocoPhillips with a 30% working interest,;Cobalt International Energy L.P. with a 20% working interest; Venari Resources LLC with a 10% working interest; and Marathon Oil Company with a 10% working interest.

Additionally, in the Shenandoah Basin, Anadarko has a 15% working interest in both the Coronado well, located in Walker Ridge block 98, and the Yucatan prospect, located in Walker Ridge block 95.

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