FILE - Crude oil from the Deepwater Horizon oil spill washes ashore in Orange Beach, Ala., in this June 12, 2010 file photo. Large amounts of the oil battered the Alabama coast, leavin

 

              FILE - Crude oil from the Deepwater Horizon oil spill washes ashore in Orange Beach, Ala., in this June 12, 2010 file photo.  Large amounts of the oil battered the Alabama coast, leavin
FILE - Crude oil from the Deepwater Horizon oil spill washes ashore in Orange Beach, Ala., in this June 12, 2010 file photo. Large amounts of the oil battered the Alabama coast, leaving deposits of the slick mess some 4-6 inches thick on the beach in some parts. 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/Dave Martin, File)