Cameron manufactured and sold to Transocean in 2010 the blowout preventer (BOP) that failed to close the well head and stop the flow of oil from the Deepwater Horizon oil well in the Gulf of Mexico. News reports stated the equipment was not properly maintained by its operators and may have led to failure of the BOP system. In December, 2011, Cameron agreed to pay a $250 million settlement to BP PLC to settle all claims related to the Deepwater Horizon without admitting responsibility.