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
Guimaras oil spill she declared a "national calamity". On August 17, British oil experts, sent by SMDC's foreign insurer, arrived in Guimaras to assess the situation. SMDC stated that the experts will check the extent of the oil pollution. The Britons conducted an aerial survey over Guimaras Island and made recommendations based on their findings. A four-man team from the U.S. Coast Guard arrived on August 23 to assist in determining the exact location of the tanker. Guimaras oil spill The Guimaras oil spill occurred in the Panay Gulf on August 11, 2006 when the oil tanker M/T "Solar 1" sank off the