An accident on April 20 deep in the Gulf of Mexico unleashed the largest offshore oil spill in U.S. history. The Gulf Coast is still coping with environmental issues and economic damage following the explosion at the Deepwater Horizon, an oil rig working BP’s Macondo well off the coast of Louisiana. Eleven people were killed in the blowout and the fire that followed, which sank the rig on April 22. Nearly 5 million gallons of oil leaked from the well over more than three months, despite many efforts to stanch the flow. In response to the disaster, the Obama administration enacted a controversial six-month ban on deep-water drilling. The moratorium was seen by many in the Gulf Coast as a severe blow to the region, which was still struggling to rebuild its economy five years after the devastation of Hurricane Katrina.