GULF OF MEXICO - Crewmembers from U.S. Coast Guard Cutter Harry Claiborne observe the operation of a Vessel of Opportunity Skimming System as it collects oil from the Gulf, May 8, 2010. VOSS is used to help remove oil from the Gulf surface. The U.S. Coast Guard is working in partnership with BP, local residents and other federal agencies to aid in preventing the spread of oil following the April 20 explosion on the mobile offshore drilling unit Deepwater Horizon. U.S. Navy photo by Petty Officer 2nd Class Jonathen E. Davis.