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 silts and sands onshore. On 26 May 2011, the Louisiana Department of Environmental Quality extended the state of emergency related to the spill. In April 2012, oil was found dotting of Louisiana's coast. As of December 2012, of coastline remain subject to evaluation and/or cleanup operations. On 15 May 2010, researchers from the National Institute for Undersea Science and Technology, aboard the research vessel "RV Pelican", identified oil plumes in the deep waters of the Gulf of Mexico, including one as large as long, wide and thick in spots. The shallowest oil plume the group detected was at about ,