Ronald C. Johnson Michael E. Brownfield Tracey J. Mercier 2011 Using a geologic-based assessment methodology, the U.S. Geological Survey estimated an in-place oil shale resource of 906 billion barrels under Federal mineral rights, or 62 percent of the total oil shale in place, in the Green River and Washakie Basins, Wyoming. More than 67 percent of the total oil shale in-place resource, or 969 billion barrels, is under Federal surface management. application/pdf 10.3133/fs20113113 en U.S. Geological Survey In-place oil shale resources underlying Federal lands in the Green River and Washakie Basins, southwestern Wyoming reports