Green River Basin
The Green River Basin in Wyoming is known for natural gas production and oil shale resources.
EIA does not publish a current Green River Basin production series. Wyoming totals are intentionally not used as a proxy.
We leave the measurement absent instead of substituting a broader geography or an estimated zero. The basin geography, geology, operators, formations and related-basin references below remain available.
Understanding Green River Basin
The Greater Green River region of southwestern Wyoming and adjacent Colorado and Utah contains several structural sub-basins and a long sedimentary record. Natural-gas development commonly involves the Lance, Fort Union and Lewis intervals, while the Eocene Green River Formation is also known for extensive oil-shale resources. Oil shale in place is not the same measurement as commercial crude production.
The region’s multiple sub-basins and formations make Wyoming statewide production an especially poor proxy. EIA does not publish a current Green River Basin production series through the STEO route used here. This page therefore separates stable geologic context from unavailable basin measurements and directs comparisons toward nearby Rocky Mountain basins with their own boundaries.