Skytruth coal and other minerals throughout the United States. In April 2010, the offshore oil drilling rig Deepwater Horizon, operated by BP P.L.C., exploded in the Gulf of Mexico and triggered the largest accidental oil spill in history. In cooperation with Florida State University, SkyTruth estimated the amount of oil flow from the damaged well-using satellite imagery and determined based conservative estimates using the visible surface slick that the flow of oil was between 5 and 25 times greater than BP reported. SkyTruth was the first organization to challenge BP's claims, and continued to monitor and document flow from the well
Deepwater Horizon oil spill a 193-page report on its web site. The report places some of the blame for the accident on BP but also on Halliburton and Transocean. The report found that on 20 April 2010, managers misread pressure data and gave their approval for rig workers to replace drilling fluid in the well with seawater, which was not heavy enough to prevent gas that had been leaking into the well from firing up the pipe to the rig, causing the explosion. The conclusion was that BP was partly to blame, as was Transocean, which owned the rig. Responding to the report, Transocean