ESRI GRID raster datasets were created to display and quantify oil shale resources for three zones in the Green River and Washakie Basins, southwestern Wyoming as part of a National Oil Shale Assessment. The oil shale zones in descending order are: LaClede Bed of the Laney Member of the Eocene Green River Formation, Wilkins Peak Member of the Eocene Green River Formation , and the Tipton Member of the Eocene Green River Formation. Each raster cell represents a one-acre square of the land surface and contains values for either oil yield in barrels per acre, gallons per ton, or isopach thickness, in feet, as defined by the grid name: _b (barrels per acre), _g (gallons per ton), and _i (isopach thickness) where "" can be replaced by the name of the oil shale zone.