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Insurance Claims	12 Months Ended
Insurance Claims	Dec. 31, 2011
Insurance Claims [Abstract]
Insurance Claims	NOTE T. Insurance Claims As a result of Hurricane Rita in September 2005, the Company's East Cameron 322 facility, located on the Gulf of Mexico shelf, was completely destroyed. Operations to reclaim and abandon the East Cameron 322 facility began in 2006 and were completed during 2011. In 2007, the Company commenced legal actions against its insurance carriers regarding policy coverage issues for the cost of reclamation and abandonment of the East Cameron 322 facility. During 2010, the Company and the insurance carriers agreed to settle the insurance policy dispute, resulting in an additional payment to the Company of $140 million during November 2010. East Cameron 322 facility insurance recoveries and reclamation and abandonment costs are included in hurricane activity, net in the accompanying consolidated statements of operations.