MOBILE, Ala. - Civilian contractors, hired through BP and organized by Safe Water, a company that works with finding innovative solutions to oil spills and other environmental disasters, load barges with more than 500-feet of oil containment boom. The boom is pulled by boats to create barriers in the Mississippi Sound in order to prevent oil from reaching the coast after the oil rig Deepwater Horizon sand. The Mississippi Sound is an arm of the Gulf of Mexico bordering southeast Louisiana, southern Mississippi and southwest Alabama. Deepwater Horizon was an ultra-deepwater oil rig that sank April 22, 2010, causing an oil spill near the U.S. Gulf Coast. U.S. Navy video by Petty Officer 2nd Class Thomas Rosprim.