An explosion on the Deepwater Horizon oil rig on April 20, ruptured a well head in the Gulf of Mexico, setting in motion one of the worst environmental disasters in U.S. history.
Since the massive oil spill in the Gulf in Mexico first hit on April 20, protests against BP have been popping up in front of the company's offices and gas stations all over the country.
The spill that followed the sinking of the Deepwater Horizon oil platform off the coast of Louisiana has become the worst oil spill in American history. Click for images.
With options for containment running low and the environmental disaster widening to more regions of the Gulf Coast, the next step is the use of a 98-ton, four-story structure to stem the leak.
With the most recent data from the Energy Information Administration and the CIA World Factbook, here are the countries with the biggest proven oil reserves.