Arizona
Grand Canyon
Arkansas
Arkoma Basin
California
Death Valley
Colorado
Denver-Julesberg Basin
Front Range
North Park Basin
Paradox Basin
Piceance Basin
Sand Wash Basin
Idaho
SE Idaho & N Utah
Kansas
Anadarko Basin
Denver-Julesberg Basin
Forest City Basin
Salina Basin
Central Kansas Uplift
Sedgwick Basin
Kentucky
Illinois-Indiana Basin
Illinois
Illinois-Indiana Basin
Indiana
Illinois-Indiana Basin
Louisiana
Under development |
Michigan
Michigan Basin
Montana
Central Montana Uplift
Disturbed Belt
W Powder River
Basin
SE Montana
Sweetgrass Arch
Nebraska
Denver-Julesberg Basin
Cambridge Arch
Central Nebraska Basin
Forest City Basin
Salina Basin
Nevada
Great Basin
New Mexico
North East New Mexico
North Dakota
Williston
Basin
Ohio
Under development
Oklahoma
Arkoma
Basin
Anadarko Basin
South Dakota
Black Hills Outcrop
Williston Basin
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Texas
Anadarko Basin
Central Basin Platform
Delaware Basin
Midland Basin
Northwest Shelf
Palo Duro Basin
Utah
Great Basin
N Utah & SE Idaho
Paradox Basin
Uinta Basin
Wyoming
Denver-Julesburg Basin
W Powder River Basin
Green River Basin
Hanna Laramie Basin
Hartville Uplift
Washakie Basin
E Powder River Basin
Big Horn Basin
Wind River Basin
Canada
South Alberta
South Central Manitoba
South Saskatchewan
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