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
Environmental impact of the Deepwater Horizon oil spill that the damage from the spill would rapidly resolve, three years into the recovery dolphins continue to die, fish are showing strange lesions, corals in the gulf have died and oil still remains in some marsh areas. Due to both its size and the way it was handled, there is little previous research to predict long-term effects. At the 2013 "Gulf of Mexico Oil Spill and Ecosystem Science Conference", oceanographer David Hollander presented data that showed as much as one-third of the oil released during the spill may still be in the gulf. Researchers described a phenomenon called "dirty blizzard":