Wyoming has significant oil shale reserves.

Wyoming is one of the U.S. states known for its substantial oil shale reserves, particularly in areas of the Green River Basin, which spans Wyoming, Utah, and Colorado. Oil shale in these regions contains kerogen, an organic material that can be converted into synthetic crude oil through heating processes. While oil shale extraction is more complex and energy-intensive than conventional oil, Wyoming's deposits are among the largest in the world. Although oil shale development has not been pursued on a large scale due to technical and environmental challenges, Wyoming’s reserves represent a significant potential energy resource for the future.