Volume and extent of the Deepwater Horizon oil spill Volume and extent of the Deepwater Horizon oil spill The "Deepwater Horizon" oil spill was discovered on the afternoon of 22 April 2010 when a large oil slick began to spread at the former rig site. According to the Flow Rate Technical Group, the leak amounted to about of oil, exceeding the 1989 "Exxon Valdez" oil spill as the largest ever to originate in U.S.-controlled waters and the 1979 Ixtoc I oil spill as the largest spill in the Gulf of Mexico. BP has challenged this calculation saying that it is overestimated as it includes over of oil which was
2011 Bohai Bay oil spill 2011 Bohai Bay oil spill The 2011 Bohai bay oil spill () was a series of oil spills that began on June 4, 2011 at Bohai Bay. The spill itself however was not publicly disclosed until a month later. There were suspicions of official cover-ups by the State Oceanic Administration (SOA). The oil field is 51% owned by China National Offshore Oil Corporation, and 49% owned by the United States company ConocoPhillips. On June 4, 2011 the Penglai 19-3 oilfield caused an oil spill from a sea floor leak that lasted until June 7. On June 17 a second oil