ContributorNetwork - A year ago Wednesday, the U.S. was hit with what was to be the worst oil spill in American history. On April 20, 2010, at about 10 p.m. CDT, British Petroleum's (BP) Deepwater Horizon drilling rig located in the Gulf of Mexico off of Louisiana exploded and began gushing crude oil into the Gulf's warm waters and continued to do so until it was capped on July 15 and officially sealed on Sept. 19. Over the span of the spill it poured up to 4.9 million barrels into the water, making it the second worst oil spill in the world and the worst in U.S. history.

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