RESTORE Act Gulf Coast. On April 20, 2010, the Deepwater Horizon, an oil rig located in the Gulf of Mexico that was owned by Transocean and drilling for British Petroleum (BP) exploded, killing 11 workers and injuring 16. The rig burned for over a day before it sunk into the gulf on April 22, 2010. Following the explosion, the seafloor oil gusher flowed for 87 days, spilling an estimated 4.9 million barrels of oil into the gulf. The spill resulted in widespread damage to the environment and ecology of the gulf coast states, as well as subsequent economic damage to their tourism
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