** FILE ** Vessels operate near the Q4000 drilling rig at the site of the Deepwater Horizon well in the Gulf of Mexico on Sunday, June 13, 2010. (AP Photo/Dave Martin)
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** FILE ** Vessels operate near the Q4000 drilling rig at the site of the Deepwater Horizon well in the Gulf of Mexico on Sunday, June 13, 2010. (AP Photo/Dave Martin)
