Mississippi

• Tuscaloosa Marine Shale
• Brown Dense Limestone

Louisiana

• Cotton Valley Trend
• Haynesville Shale
• Bossier Shale
• Wilcox (South & Central LA)
• Austin Chalk (S. Central LA)
• Ultra Deep

Oklahoma

• Woodford Shale
• Granite Wash
• Scoop
• Stack

Colorado

• Niobrara Shale

Nebraska

• Niobrara Shale

Wyoming

• Niobrara Shale

Kansas

• Mississippian

North Dakota

• Bakken Shale
• Williston Basin

Montana

• Bakken Shale
• Williston Basin

Illinois

• Southern IL
• Conventional

Arkansas

• Brown Dense
• Cotton Valley

Texas

• Permian: Delaware Basin
• Permian: Midland Basin
• Barnett Shale
• Woodbine
• Eagle Ford
• E. Texas