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Deepwater Horizon

A long-running oil-spill litigation and Gulf restoration matter tied to the 2010 rig disaster.

Active · still building data
last updated 15 July 2026 · 6 sources
Confirmed facts
11
Open questions
5
Latest report
20 Apr 2026
Deaths
11
Spill volume
134M gal
This case is still developing. Get an email when the file updates.
Audio brief · automated narration of the sourced record
Transcript

Case file Deepwater Horizon, reference D C zero zero three one. According to court documents cited by the Justice Department, on April twentieth, twenty ten, the Deepwater Horizon rig experienced an uncontrolled blowout, explosions and fire at the Macondo well site in the Gulf of Mexico, resulting in the deaths of eleven rig workers. The Associated Press reported that the disaster sent one hundred thirty-four million gallons of crude oil into the ocean and remained the nation’s worst offshore oil spill. The Justice Department reported that BP Exploration and Production Incorporated pleaded guilty in twenty thirteen and was sentenced to pay four billion dollars in criminal fines, penalties and restitution. The Justice Department also reported that Transocean Deepwater Incorporated pleaded guilty to violating the Clean Water Act and was sentenced to pay four hundred million dollars. The Justice Department said a twenty fifteen civil settlement with BP was worth twenty point eight billion dollars. The file’s open questions include which restoration projects remain incomplete, how settlement money has been paid or spent, the status of remaining health-related lawsuits, unused funds after Louisiana canceled Mid-Barataria, and the current status of the Kaskida lawsuit. This has been an automated reading of case file D C zero zero three one at developing case dot com. Every fact you heard names a public source.

Timeline of what's confirmed11 entries
20 Apr 2010
According to court documents cited by the Justice Department, the Deepwater Horizon rig experienced an uncontrolled blowout and related explosions and fire at the Macondo well site in the Gulf of Mexico, resulting in the deaths of 11 rig workers.
Justice Department
20 Apr 2025
AP reported that the Deepwater Horizon disaster sent 134 million gallons of crude oil into the ocean and remained the nation's worst offshore oil spill.
AP
29 Jan 2013
The Justice Department reported that BP Exploration and Production Inc. pleaded guilty to illegal conduct leading to and after the 2010 Deepwater Horizon disaster and was sentenced to pay $4 billion in criminal fines, penalties and restitution, including $2.4 billion for natural resource restoration.
Justice Department
14 Feb 2013
The Justice Department reported that Transocean Deepwater Inc. pleaded guilty to violating the Clean Water Act and was sentenced to pay $400 million in criminal fines and penalties in relation to the disaster.
Justice Department
2013
The Justice Department reported that a separate civil settlement imposed a $1 billion Clean Water Act penalty on Transocean entities related to the Deepwater Horizon incident.
Justice Department
5 Oct 2015
The Justice Department announced that the United States and five Gulf states reached a civil settlement with BP worth $20.8 billion to resolve government claims under the Clean Water Act, the Oil Pollution Act, and related state and local economic-damage claims.
Justice Department
4 Apr 2016
The Justice Department reported that U.S. District Judge Carl J. Barbier entered the consent decree settling United States of America v. BP Exploration & Production Inc., et al.
Justice Department
5 Oct 2015
The Justice Department said natural-resource-damages money from the BP settlement would fund Gulf restoration projects selected by federal and state trustees across five restoration goals and 13 project categories.
Justice Department
20 Apr 2025
AP reported that, in its review of post-spill health litigation, all but a handful of roughly 4,800 lawsuits seeking compensation for health problems linked to the oil spill had been dismissed and only one had been settled.
AP
17 Jul 2025
AP reported that Louisiana canceled the nearly $3 billion Mid-Barataria Sediment Diversion project, which was funded by the 2010 Deepwater Horizon oil-spill settlement.
AP
20 Apr 2026
AP reported that environmental groups sued the Trump administration over approval of BP's Kaskida ultra deep-water drilling project in the Gulf of Mexico; AP reported BP's position that the lawsuit was unfounded.
AP
Open questionsunconfirmed · not conclusions
Which Deepwater Horizon-funded Gulf restoration projects remain incomplete as of the latest trustee reporting?unconfirmed in trusted-source search · unconfirmed
How much of the $20.8 billion BP civil settlement has been paid, allocated, or spent as of 15 July 2026?unconfirmed in trusted-source search · unconfirmed
What is the current docket status of the small number of remaining health-related lawsuits described by AP?unconfirmed in trusted-source search · unconfirmed
What will happen to unused settlement funds after Louisiana canceled the Mid-Barataria Sediment Diversion project?unconfirmed in trusted-source search · unconfirmed
What is the present court status of the 20 April 2026 lawsuit challenging approval of BP's Kaskida project?unconfirmed in trusted-source search · unconfirmed
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