Deepwater Horizon – BP Gulf of Mexico Oil Spill

On April 20, 2010, the oil drilling rig Deepwater Horizon, operating in the Macondo Prospect in the Gulf of Mexico, exploded and sank resulting in the death of 11 workers on the Deepwater Horizon and the largest spill of oil in the history of marine oil drilling operations.   Approximately 4.9 billion barrels of oil flowed from the damaged Macondo well over an 87-day period, before it was finally capped on July 15, 2010.  On December 15, 2010, the United States filed a complaint in District Court against BP Exploration & Production and several other defendants alleged to be responsible for the spill.

This webpage provides information and materials on EPA’s enforcement response to the Deepwater Horizon Oil Spill, including settlements with some of the defendants, as well as links to other related websites for additional information.  This webpage is limited to EPA’s enforcement-related activities only, and does not cover all legal or other actions against BP Exploration & Production and other parties for the spill, such as private party/class action settlements for medical claims and economic damages, or other actions against those responsible for the spill.  The U.S. District Court for the Eastern District of Louisiana has established the Deepwater Horizon Oil Spill Exitwebsite for this purpose.  In addition, links for additional information on the spill, cleanup activities and other responses are provided below. 

Case and Settlement Information

December 15, 2010: Civil complaint of the United States

February 17, 2012: $90 million civil settlement with MOEX Offshore 2007 LLC 

February 22, 2012: Court order granting partial summary judgment of liability for the spill

November 15, 2012: $4 billion criminal plea agreement with BP Exploration & Production (56 pp, 2MB, About PDFExit

January 3, 2013: $1 billion civil settlement with Transocean Offshore Deepwater Drilling Inc., Transocean Deepwater Inc., Transocean Holdings LLC, and Triton Asset Leasing GmbH (“Transocean”)

January 3, 2013: $400 million criminal plea agreement with Transocean (33 pp, 12MB, About PDFExit

September 4, 2014:  Phase One Trial:  Findings of Fact and Conclusions of Law on Gross Negligence and Willful Misconduct

Additional Information on the Deepwater Horizon Oil Spill

EPA Response to the Spill in the Gulf

Gulf Coast Ecosystem Restoration Task Force

RestoreTheGulf: official federal government site for spill response and recovery Exit

Final Report of the National Commission on the BP Deepwater Horizon Oil Spill Exit

Deepwater Horizon Joint Investigation Team Exit