Former BP drilling engineer Kurt Mix, who has been convicted of obstructing justice. Jonathan Bachman/AP hide caption
BP oil spill
The Deepwater Horizon oil rig burned on April 21, 2010. U.S. Coast Guard/Getty Images hide caption
An out-of-control natural gas well in the Gulf of Mexico continued to burn Wednesday after it blew out and caught fire. Beams supporting some of the "Hercules 265 jack-up rig" have collapsed. U.S. Coast Guard via AP hide caption
BP is scaling back its cleanup efforts from the Deepwater Horizon oilspill in areas outside Louisiana. Here, a photo from last September shows alluvial clay and tar mats on the shore of Elmer's Island, in Jefferson Parish, La. Gerald Herbert/AP hide caption
The Deepwater Horizon oil rig burned on April 21, 2010. U.S. Coast Guard/Getty Images hide caption
The Deepwater Horizon oil rig burned on April 21, 2010. U.S. Coast Guard/Getty Images hide caption
The Deepwater Horizon oil rig burned on April 21, 2010. U.S. Coast Guard/Getty Images hide caption