The Deepwater Horizon oil spill discharged around 4.9 million barrels of petroleum into the Gulf of Mexico in 2010.

On the evening of April 20, 2010, the Deepwater Horizon drilling rig exploded in the Gulf of Mexico, killing 11 workers onboard. The rig was stationed in the Macondo Prospect, a site owned by the multinational oil and gas company BP.

The oil spill lasted for 87 days. Satellite images show that it spread across 68,000 square miles of ocean.