Oil floats on the surface of the Gulf of Mexico around a work boat at the site of the Deepwater Horizon oil spill in the Gulf of Mexico June 2, 2010. As the desperate effort to contain the gusher proceeded, the slick stretched farther. Tar balls and other oil debris from the giant, fragmented slick reached Alabama's Dauphin Island, parts of Mississippi and were less than 16 km (10 miles) from Florida's northwest Panhandle coast. REUTERS/Sean Gardner (UNITED STATES - Tags: DISASTER ENVIRONMENT BUSINESS ENERGY)