Albuquerque Basin, New Mexico Appalachian Basin, Eastern United States Big Horn Basin, Wyoming Black Warrior Basin, Alabama and Mississippi Delaware Basin, Texas and New Mexico Denver Basin, Colorado Illinois Basin, Illinois Los Angeles Basin, California Michigan Basin, Michigan North Park Colorado Basin Paradox Basin, Utah and Colorado Permian Basin, Texas and New Mexico Piceance Basin, Colorado Powder River Basin, Wyoming and Montana Raton Basin, Colorado and New Mexico Sacramento Basin, California San Juan Basin, New Mexico and Colorado Uinta Basin, Utah Williston Basin, Montana and North Dakota Wind River Basin, Wyoming