(BBC) - The US Department of Justice has fined oil giant BP $373m (Ј182m), for breaking environmental rules and committing fraud.
The fine includes a $50m fee after a Texas refinery explosion in 2005 that killed 15 people and injured 180 more.
That sum is the highest fine of its kind under the Clean Air Act.
The fraud charges relate to price manipulation from April 2003 to February 2004. Four ex-BP workers have been indicted for price manipulation.
Included in the fine is a $20m criminal fine to be paid to the state of Alaska and the National Fish and Wildlife Foundation after crude oil leaked from pipelines, harming the environment.
"The BP cases demonstrate our commitment to enforcing the laws that protect our environment, the safety of Americans, and the integrity of the marketplace," said Acting Attorney General Peter Keisler.