Volume and extent of the Deepwater Horizon oil spill Volume and extent of the Deepwater Horizon oil spill The "Deepwater Horizon" oil spill was discovered on the afternoon of 22 April 2010 when a large oil slick began to spread at the former rig site. According to the Flow Rate Technical Group, the leak amounted to about of oil, exceeding the 1989 "Exxon Valdez" oil spill as the largest ever to originate in U.S.-controlled waters and the 1979 Ixtoc I oil spill as the largest spill in the Gulf of Mexico. BP has challenged this calculation saying that it is overestimated as it includes over of oil which was
Oil spill governance in the United States Oil spill governance in the United States Oil spill governance in the United States is governed by federal law. The governance framework for oil spills in the United States prior to the Oil Pollution Act (OPA) of 1990 lacked proper consolidation and proved to be inadequate in preventing and responding to oil spillages. A timeline produced by the World Resources Institute (WRI) highlights some key events in oil drilling governance and regulatory system that ultimately govern oil spills in the United States. Although the OPA provides a framework for oil spillage governance recent events resulting in the BP deep water