The Lucius appraisal well was drilled as an up-dip sidetrack, approximately 3,200ft due south of the discovery well. It was drilled to a total depth of approximately 20,600ft in approximately 7,100ft of water. The Lucius discovery well was drilled to a total depth of about 20,000ft and encountered over 200 net feet of pay.

Bob Daniels, Sr Vice President of worldwide exploration at Anadarko, said: “The successful Lucius appraisal well confirms this is a major discovery with substantial resource potential. We were very encouraged by what we saw in the discovery well, and the results from this appraisal further heighten our enthusiasm.

“The reservoirs are characterized by excellent porosity and permeability and contain high-quality oil. We anticipate additional appraisal activity in 2010 as we continue to evaluate development options for this very large accumulation.”

Anadarko operates the Lucius well with a 50% working interest. Co-owners in the discovery include Plains Exploration & Production with a 33.33% working interest and Mariner Energy with 16.67% working interest.

Once operations are complete at the Lucius appraisal well, Anadarko plans to move the rig to drill an appraisal of Anadarko’s subsalt Miocene Heidelberg discovery in the Green Canyon area of the Gulf of Mexico. Anadarko operates Heidelberg with a 44.25% working interest.