FILE - In this file photo taken Feb. 5, 2007, the sun shines on Anadarka Petroleum Corp.'s corporate headquarters in The Woodlands, Texas. Anadarko Petroleum Corp. said Monday, March 28, 2011, it has ... more 
FILE - In this file photo taken Feb. 5, 2007, the sun shines on Anadarka Petroleum Corp.'s corporate headquarters in The Woodlands, Texas. Anadarko Petroleum Corp. said Monday, March 28, 2011, it has discovered oil in a deepwater exploration well off the coast of Ghana. less 
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Associated Press | Photo By Pat Sullivan, file
Mon, Mar 28, 2011 8:22 AM EDT