The White House oil spill commission said on Monday it had found no evidence to support accusations that the largest offshore oil spill in U.S. history happened because BP and its partners cut corners to save money. The commission outlined a number of human errors and oversights that may have led to the disaster, but Fred Bartlit, the commission’s chief counsel, said cost cutting by BP was not to blame.

Fred Bartlit: “People have said people traded safety for dollars. We’ve studied the hell out of this. We welcome anybody that gives us something we’ve missed, but we don’t see a person or three people sitting there at a table considering safety and cost and giving up safety for cost. We have not seen that, and you have to be sure you understand that.”

The oil spill commission’s findings have been questioned by some outside observers. Yale University professor Charles Perrow said the investigation overlooked BP’s track record of disasters that have come after cost cutting. Perrow told the Associated Press, “There’s a long history of dollars versus safety at this organization.” Perrow cited BP’s 2005 Texas City oil refinery explosion in which federal officials cited a culture of cost cutting at the expense of safety. In 2006, BP’s lack of leak detection caused a massive pipeline spill, the largest on Alaska’s North Slope to date.