Efforts to stem the Deepwater Horizon oil spill Efforts to stem the Deepwater Horizon oil spill Efforts to stem the "Deepwater Horizon" oil spill were ongoing from the time that the "Deepwater Horizon" exploded on 4/20/2010 until the well was sealed by a cap on July 15, 2010. Various species of dolphins and other mammals (61 casualties), birds (2,095 casualties), and the endangered sea turtles (467 casualties) have been killed either directly or indirectly by the oil spill. The "Deepwater Horizon" spill has surpassed in volume the 1989 "Exxon Valdez" oil spill as the largest ever to originate in U.S.-controlled waters; it is comparable to the 1979 Ixtoc
Ashland oil spill the largest fine levied on an oil company after a fuel spill. Ashland was charged with two misdemeanors: one for violating the Clean Water Act and another for violating the Federal Refuse Act. Ashland paid about $18 million in cleanup fees and civil lawsuits from those distressed by the experience. Ashland oil spill The Ashland oil spill was an oil spill that occurred on January 2, 1988 into the Monongahela River near the town of Jefferson Hills, Pennsylvania, approximately 20 miles upstream from the city of Pittsburgh. Ashland Oil Company Inc. (currently known as Ashland Inc.) owned a facility near