GULF OF MEXICO - Coast Guard Petty Officer 1st Class Justin Sawyer, left, and Alex Smith, product engineer for Elastec/American Marine Inc., observe a controlled oil burn from a fishing vessel in the Gulf of Mexico, May 5, 2010. The U.S. Coast Guard working in partnership with BP, community volunteers, and other federal agencies conducted the controlled burn to aid in preventing the spread of oil following the April 20 explosion on Mobile Offshore Drilling Unit Deepwater Horizon. Navy photo by Petty Officer 1st Class Jeffery Tilghman Williams.