BP announced it had capped its crippled underwater well that sent millions of barrels of crude gushing into the Gulf of Mexico for three months.

On April 20, 2010, an explosion and fire on the Deepwater Horizon BP oil rig off the Louisiana coast in the Gulf of Mexico killed 11 workers and caused a massive oil spill.

The Deepwater Horizon oil rig on fire with fire fighting ships trying to put it out.© U.S. Coast Guard An operator recording operation of oil and gas process at an oil rig.© curraheeshutter ...

This photo released by the U.S. Coast Guard on April 22, 2010 showed fire crews battling the flaming spill from the BP Deepwater Horizon platform in the Gulf of Mexico the preceding day.

FILE - In this April 21, 2010 file photo provided by the U.S. Coast Guard, fire boat response crews spray water on the burning BP Deepwater Horizon offshore oil rig. (U.S. Coast Guard via AP, File) AP ...

On April 20, 2010, an explosion and fire on the Deepwater Horizon BP oil rig off the Louisiana coast in the Gulf of Mexico killed 11 workers and caused a massive oil spill.

FILE – A large plume of smoke rises from fires on BP’s Deepwater Horizon offshore oil rig in the Gulf of Mexico, more than 50 miles southeast of Venice on Louisiana’s tip on April 2010.

Crews battle a fire at the Deepwater Horizon oil rig in April 2010 in the Gulf of Mexico, which President Donald Trump renamed the Gulf of America. U.S. Coast Guard via Getty Images ...