Mercury is the company’s second deepwater test in the Sierra Leone-Liberian Basin and was drilled to a total depth of approximately 15,950ft in about 5,250ft of water.

The Mercury discovery is located in offshore block SL-07B-10, approximately 40 miles east-southeast of Anadarko’s Venus discovery.

Anadarko holds an interest in more than 4.6 million acres on five deepwater blocks offshore Sierra Leone and Liberia, and has identified more than 17 prospects and leads on 3-D seismic on this acreage.

Once operations are complete at the Mercury well, the company will mobilize the drillship to Ghana to accelerate the appraisal program at the Owo and Tweneboa fields, which the company anticipates sanctioning in 2011.

Anadarko operates the SL-07B-10 block with a 65% working interest, and co-owners in the block include Repsol Exploracion with 25% interest and Tullow with 10% interest.