Oil execs in Senate hearing as gulf oil spill cleanup efforts continue -- photos
Oil companies stress one another's failures in a Senate hearing as cleanup and containment efforts continue in the Gulf of Mexico, after the explosion of the Deepwater Horizon oil rig April 20.
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Oil spills throughout history
The Deepwater Horizon oil spill has surpassed the size of the 1969 Santa Barbara spill and the Exxon Valdez. Here are some other historical spills.
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