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
2009 Lüderitz oil spill 2009 Lüderitz oil spill The 2009 Lüderitz oil spill began in April 2009 off the coast of Lüderitz, Namibia. The oil spill directly affected 171 African penguins, with many more possibly threatened. The oil spill is in the area where the fishing trawler "Meob Bay" sank in June 2002, killing 19 seamen. The boat sank after a rope got caught in the propeller, which then detached causing water to flood into the engine room. However, an inspection of the site where the vessel had sunk showed that the wreck was not the source of the oil; the source of the