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
Jakob Maersk oil spill Jakob Maersk oil spill The Jakob Maersk was an oil tanker registered in Denmark that struck a sand bank on January 29, 1975 while entering the port of Leixões, Portugal, causing a major oil spill. Built in 1966, the tanker was owned by Maerskline Navigation Company, a subsidiary of A.P. Moller, and contracted by Shell Oil Company consisting of a crew of seventeen at the time of the accident. Seven of those seventeen crew members died during the explosion. "Jakob Maersk" was carrying 88,000 tons of crude oil from Kharg Island in Iran while entering the Port of Leixões in