A new Deepwater Horizon disaster report, released on June 5, found that the blowout preventer (BOP), designed to shut off the flow of oil and gas from the Macondo well, "failed to seal the well because drill pipe buckled for reasons the offshore drilling industry remains largely unaware of."
The U.S. Chemical Safety Board (CSB) released the new, two-volume draft investigation report, the result of an independent examination at the request of Congress on the technical reasons behind the April 20, 2010, incident and to find opportunities for possible improvements to industry standards. Volumes three and four are set for release later this year.