| BHP Minerals - Area III |
Usibelli Coal Mine, Inc. (Alaska) |
Barrick Goldstrike Mines |
| Bridger Coal Company |
BHP Minerals - Navajo Mine |
BHP San Jan Coal Company |
| Colowoyo Coal |
Cardinal River Coal |
Catenary Coal Company |
|
Cordero Mining Company
|
Denver Magnetic, Power & Distribution
|
Drummond Coal Company |
| Estevan Coal Corporation |
Kennecott Utah Copper |
Kerr McGee Coal Corporation |
| Kiewit Mining Group |
Kiewit Pacific Company |
Newmont Gold |
| Pittsburg & Midway Coal Company |
Powder River Coal - Rawhide Mine |
Spring Creek Coal Company |
| Sabine Mining Company |
Seneca Coal Company |
Texas Utilities Mining Company |
| Suncor Energy |
Syncrude Canada Ltd. |
Trapper Mining Company |
| Thunder Basin Coal Company |
TransAlta Utilities |
Walnut Creek Mining Company |
| Twenty Mile Coal |
|
Texas Westmoreland Coal Company |
Powder River Coal
(North Antelope Coal Rochelle) |
|
|
