U.S. appeals ruling on size of BP oil spill

Reuters: The U.S. government is appealing a federal court ruling that reduced the potential penalty BP Plc must pay for the 2010 Gulf of Mexico oil spill by almost $4 billion.

The appeal, which was filed on Friday in U.S. District Court in New Orleans, challenges a January decision by U.S. District Court Judge Carl Barbier that set the size of the spill at 3.19 million barrels. The appeal did not detail what aspects of Barbier's ruling it was challenging.

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