The U.S. government says BP has agreed to pay a record fine of more than $50 million for failing to correct problems at a Texas oil refinery that exploded and killed 15 workers in 2005.
The company is still contesting about $30 million in other fines in connection with the fiery blast that injured 170 people.
U.S. regulators say they found hundreds of safety violations at the BP refinery when they inspected it in 2009. They also say the company failed to make promised changes and repairs at the refinery near Houston, Texas.
The 2005 refinery explosion is separate from this year's environmental disaster that grew out of an explosion and fire on a BP oil drilling platform in the Gulf of Mexico.
Some information for this report was provided by AP, AFP and Reuters.