Anadarko's Lucius Shines as Major GOM Find

Drilled by the ENSCO 8500 semisub, the Lucius sidetrack appraisal well, located in Keathley Canyon block 875 in the deepwater Gulf of Mexico, encountered almost 600 net feet of high-quality oil pay with additional gas-condensate pay in thick subsalt Pliocene and Miocene sands.

"The successful Lucius appraisal well confirms this is a major discovery with substantial resource potential," said Bob Daniels, Anadarko Sr. Vice President, Worldwide Exploration. "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."

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

Anadarko operates the Lucius well with a 50-percent working interest. Co-owners in the discovery include Plains Exploration & Production Company with a 33.33-percent working interest and Mariner Energy, Inc. with 16.67-percent 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, which was announced in early 2009. Anadarko operates Heidelberg with a 44.25-percent working interest.


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