An explosion after a blowout on a drilling rig in the Gulf of Mexico on April 20,
2010 triggered the start of a disaster that probably led to the worst oil pollution
in the history of the United States.
Defective blowout preventer
For a period of nearly three months, until 15 July 2010, crude oil flowed out of
the drilled hole through a defective blowout preventer. It is estimated that more
than 800 million liters of oil spilled into the sea as a result of the disaster.
It cost BP, the oil field operator, around USD 8 billion (EUR 5.9 billion). The company
lost EUR 54 billion in market value.