The largest marine oil spill in u. s. history affected which part of the united states?

The Deepwater Horizon oil spill affected an area of approximately 2,500 to 68,000 square miles, affecting the Gulf Coast of Mexico, especially the states of Louisiana, Mississippi, Alabama and Florida. In 2013, in the state of Louisiana, they managed to eliminate 4,900,000 pounds of oil from beaches, twice the amount of oil collected in 2012. The economies of the Gulf Coast states were terribly affected, as the spill affected the industries, of which, the inhabitants of the coast of the four affected states depended. More than a third of US waters in the Gulf were closed to fishing, to avoid further pollution.