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
Deepwater Horizon oil spill leaked oil had been greatly exaggerated. However, biogeochemist Chris Reddy, said natural microorganisms are a big reason why the oil spill in the Gulf of Mexico was not far worse. Genetically modified "Alcanivorax borkumensis" was added to the waters to speed digestion. The delivery method of microbes to oil patches was proposed by the Russian Research and Development Institute of Ecology and the Sustainable Use of Natural Resources. On 18 May 2010, BP was designated the lead "Responsible Party" under the Oil Pollution Act of 1990, which meant that BP had operational authority in coordinating the response. The first video