Alabama
- Alabama Power
- Covol Fuels
Florida
- Inman Coal Company
Georgia
- Georgia Power
- Southern Company
Illinois
- American Coal Company
- Williamson Energy
- Hillsboro Energy
- Murray Energy
Indiana
- Black Beauty Coal Company
- Sunrise Coal Company
- American Electric Power
- U.S. Steel
- James River Coal
Kentucky
- Warrior Coal
- American Electric Power
- Perry County Coal
- Black Mountain Resources
- Big Rivers Electric
Maryland
- Consol Energy
- AES Warrior Run
- New Page Corporation
- Constellation Energy
Michigan
- Fairmont Minerals
New York
- AES Somerset
North Carolina
- Duke Energy
North Dakota
- Great River Energy
Ohio
- American Electric Light
- American Municipal Power
- Dayton Power & Light
- American Energy
Pennsylvania
- Genon
- First Energy
- Foundation Coal
- New Enterprise Stone & Lime
- Exelon Power
- Consol Energy
Texas
- Oxbow Calcining
- TXU Mining
Utah
- Covol Fuels
Virginia
- Red River Coal Company
- Knox Creek Coal
- American Electric Power
West Virginia
- Alpha Natural Resources
- Longview Power Plant
- Kanawha River Terminal
- Commonwealth Mining
- Eagle Energy
- Magnum Coal
- River Point
- Massey Coal
- Kenwest Terminal
- Consol Energy
Wisconsin
- Wisconsin Industrial Sand
Wyoming
- Jacobs Ranch
- Foundation Coal West