FILE - BP senior vice president Kent Wells rubs his eyes while testifying during the Deepwater Horizon joint investigation hearings by the U.S. Coast Guard and the Interior Department&#x27;s Bureau of Ocean Management, Regulation and Enforcement in Houston in this Aug. 26, 2010 file photo. A high-stakes trial to assign blame and help figure out exactly how much more BP and other companies should pay for the spill began Monday, Feb. 25, 2013. (AP Photo/David J. Phillip, Pool, File)
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