An inquiry ordered by US President Barack Obama into the BP oil spill has given support to many of the company's own findings, challenging claims BP sacrificed safety to save money.
During a presentation to the oil spill commission, the panel's chief investigator said he agreed with 90% of BP's conclusions about the disaster.
Preliminary findings are expected to be released later on Monday.
BP has been widely criticised since the 20 April blowout in the Gulf of Mexico.
The explosion on the Deepwater Horizon drilling rig killed 11 workers, polluted hundreds of miles of coast and led to the worst environmental disaster in US history.