Assessment of In-Place Oil Shale Resources of the Green River Formation, Piceance Basin, Western Colorado

http://pubs.usgs.gov/fs/2009/3012/

We estimated a total of 1.525 trillion barrels of oil are in place in seventeen oil shale zones in this area using a geology-based assessment methodology.

by Johnson, Ronald C.; Mercier, Tracey J.; Brownfield, Michael E.; Pantea, Michael P.; and Self, Jesse G.

U.S. Geological Survey Fact Sheet 2009-3012

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