01/30/2011 05:12 am ET Updated May 25, 2011

GAO Report On Oil Shale Predicts Conflicts With Downstream Water Demands

It's likely that the nation's oil shale states have enough water to start an energy industry based on the rock, but it would soon have to compete with downstream demands, including those of cities and towns, and endangered fish, a government report says.

The Green River Formation of Colorado, Utah and Wyoming contains the equivalent of as many as 3 trillion barrels of oil, the Government Accountability Office said in a report issued Monday.

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