21st-century fossil fuel regulations in the United States spill has been the Deepwater Horizon spill of 2010. With the exception of Kalamazoo River (2010), all other major spills have occurred around the Gulf of Mexico. In May 2010, the United States Department of the Interior called for an end to drilling in the area of the Deepwater Horizon spill. Despite pushback from oil companies and states, the Supreme Court ruled to keep the moratorium in place until October 2010. BP agreed to financial compensation for the damage they caused, including payouts to the Deepwater Horizon Oil Spill Trust. Regulations drafted after the accident required oil companies to update
Volume and extent of the Deepwater Horizon oil spill collected before it could enter the Gulf waters. In its permit to drill the well, BP estimated the worst-case flow at . Immediately after the explosion the USCG did not estimate any oil leaking from the sunken rig or from the well. On 24 April, USCG Rear Admiral Mary Landry announced that a damaged wellhead was indeed leaking. She stated that "the leak was a new discovery but could have begun when the offshore platform sank . . . two days after the initial explosion." Initial estimates by USCG and BP officials, based on remotely operated vehicles as well as