James Wilk, BP Exploration Alaska Inc.'s VP Chief of Staff in Alaska, left, walks with chief of security Billy Andrews, right, into the federal court building Thursday Nov. 29, 2007, in Anchorage, Alaska. The Alaska subsidiary of British energy company BP PLC pleaded guilty on Thursday to a federal environmental crime for failing to prevent a 2006 spill in America's largest oil field, on Alaska's North Slope. (AP Photo/Al Grillo)

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