File:YellowstoneRiverMap.jpg
Map of the Yellowstone River watershed

The July 2011 Yellowstone River oil spill was an oil spill from an ExxonMobil pipeline running from Silver Tip to Billings, Montana, which ruptured about 10 miles west of Billings on July 1, 2011 at about 11:30 p.m.[1] The resulting spill leaked an estimated 750 to 1,000 barrels of oil into the Yellowstone River for about 30 minutes before it was shut down.[2]

As a precaution against a possible explosion, officials in Laurel, Montana evacuated about 140 people on Saturday just after midnight, then allowed them to return at 4 a.m.[1]

A spokesman for Exxon Mobil said that the oil is within 10 miles of the spill site. However, Montana Governor Brian Schweitzer disputed the accuracy of that figure.[3] The governor pledged that "The parties responsible will restore the Yellowstone River."[2]

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