High-stakes trial begins over 2010 Gulf oil spill - Article Photos 4/5

FILE - In this Sunday, June 6, 2010 file photo, a small oil-covered fish floats on the water's surface at Bay Long off the coast of Louisiana. An April 20, 2010 explosion at the BP Deepwater Horizon offshore platform killed 11 men, and the subsequent leak released an estimated 172 million gallons of petroleum into the Gulf of Mexico. The Gulf oil spill settlement trial has started in New Orleans, Monday, Feb. 25, 2013. U.S. District Judge Carl Barbier is scheduled to hear several hours of opening statements Monday by lawyers for the companies, federal and state governments and others who sued over the disaster. Barbier is hearing the case without a jury. The trial is designed to identify the causes of BP's well blowout and assign percentages of fault to the companies. (AP Photo/Charlie Riedel, File)