SOURCE: Anadarko Petroleum Corporation

Anadarko Petroleum Corporation

April 19, 2012 07:30 ET

Anadarko Provides Deepwater Update

HOUSTON, TX--(Marketwire - Apr 19, 2012) - Anadarko Petroleum Corporation (NYSE: APC) today announced the Heidelberg sidetrack appraisal well in the deepwater Gulf of Mexico successfully confirmed an extension of up to 1,500 acres. Offshore Sierra Leone and Côte d'Ivoire, Anadarko's wells at Mercury-2 and Kosrou-1 both encountered water-bearing reservoirs.

Gulf of Mexico
"The Heidelberg sidetrack appraisal well was successfully drilled and defined the down-dip limits of the Heidelberg field," said Chuck Meloy, Anadarko Sr. Vice President, Worldwide Operations. "This well extends the oil/water contact down structure by approximately 700 feet, and continues to validate the field's estimated resource range, while providing support for the option of a stand-alone development. Anadarko and Heidelberg's co-owners have initiated pre-FEED (front-end engineering and design) work to evaluate development solutions with the objective of advancing commercialization of this emerging mega project."

The Heidelberg sidetrack appraisal well in Green Canyon block 903 is located approximately 1.3 miles from the Heidelberg discovery well. The well was drilled to a total depth of approximately 30,440 feet in water depths of approximately 5,260 feet.

Anadarko operates Green Canyon block 903 with a 44.25-percent working interest. Co-owners in the block include Apache Deepwater LLC, a subsidiary of Apache Corporation (12.5 percent), Eni (12.5 percent), Statoil (12 percent), ExxonMobil (9.375 percent) and Cobalt International Energy, L.P. (9.375 percent).

Sierra Leone
The Mercury-2 appraisal well, located approximately 7.5 miles (12 kilometers) northwest and approximately 1,300 feet (400 meters) down dip of the Mercury discovery well, intersected more than 885 feet (270 meters) of reservoir-quality sandstones in the targeted Cretaceous interval that were water bearing. The partnership plans to integrate the data from Mercury-2 into its model as it evaluates both the Mercury discovery and future drilling opportunities offshore Sierra Leone.

Mercury-2 was drilled to a total depth of 16,870 feet (5,142 meters) in water depths of approximately 5,950 feet (1,815 meters).

Anadarko operates the offshore Block SL-07B-11 with a 55-percent working interest. Co-owners in the block are Repsol (25 percent) and Tullow (20 percent).

Côte d'Ivoire
The Kosrou-1 exploration well, located in Block CI-105, intersected approximately 312 feet (90 meters) of reservoir-quality sandstones in the primary target that were water bearing. The well was drilled to a total depth of approximately 17,196 feet (5,241 meters) in water depths of approximately 7,464 feet (2275 meters). Upon completion of operations, the rig will be mobilized to drill the geologically independent Paon-1 prospect in Block CI-103.

Anadarko operates Block CI-105 with a 50-percent working interest. Co-owners in the block include Tullow (22 percent), Petroci (15 percent) and Thani Emirates Petroleum (13 percent).

Anadarko Petroleum Corporation's mission is to deliver a competitive and sustainable rate of return to shareholders by exploring for, acquiring and developing oil and natural gas resources vital to the world's health and welfare. As of year-end 2011, the company had approximately 2.54 billion barrels-equivalent of proved reserves, making it one of the world's largest independent exploration and production companies. For more information about Anadarko, please visit

This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Anadarko believes that its expectations are based on reasonable assumptions. No assurance, however, can be given that such expectations will prove to have been correct. A number of factors could cause actual results to differ materially from the projections, anticipated results or other expectations expressed in this news release, including Anadarko's ability to successfully sanction and develop the projects identified in this news release. See "Risk Factors" in the company's 2011 Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and other public filings and press releases. Anadarko undertakes no obligation to publicly update or revise any forward-looking statements.