How Much Oil Has Leaked Into the Gulf?

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Nobody knows the exact amount of oil gushing from BP's ruptured well, but estimates include everything from the National Oceanic and Atmospheric Administration's 210,000 gallons a day to BP's worst-case scenario of of 2.5 million gallons a day. You can get a sense of the wild range of these numbers by dragging the above bar from left to right to account for different estimates.

The total leakage number estimates all oil spilled since April 22, when crude was found to be leaking from the site of the Deepwater Horizon rig explosion.