U.S. Naval Support team deploys a "Harbour Buster" high-speed oil containment system during a drill to test procedures to contain and recover oil during a spill. (This public domain U.S. Navy photo is by Mr. Paul Farley/Released)
The Deepwater Horizon oil spill (also referred to as the BP oil spill, the BP oil disaster, the Gulf of Mexico oil spill, and the Macondo blowout) began on 20 April 2010 in the Gulf of Mexico on the BP operated Mancondo Prospect. It claimed eleven lives and is considered the largest accidental marine oil spill in the history of the petroleum industry, an estimated 8% to 31% larger in volume than the previously largest, the Ixtoc I oil spill. Following the explosion and sinking of the Deepwater Horizon oil rig, a sea-floor oil gusher flowed for 87 days, until it was capped on 15 July 2010. The US Government estimated the total discharge at 4.9 million barrels (210 million US gal; 780,000 m3). After several failed efforts to contain the flow, the well was declared sealed on 19 September 2010.Some reports indicate the well site continues to leak.
Information about response and recovery form the following U.S. government agencies:
TOP: Oil from the Deepwater Horizon oil spill approaches the coast of Mobile, Ala.on May 6, 2010. BOTTOM: Concept diagram of the underwater oil containment domes originally planned to cover the 2 remaining oil leaks from the fallen pipeline [public domain].