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Antelope Coal Company P O Box 3001 511 Antelope Coal Mine Road Gillette, Wyoming 82717 307.464.1133 |
Cordero Rojo Complex P O Box 3001 748 T7 Road Gillette, Wyoming 82717 307.682.8005 |
Spring Creek Coal Company P O Box 67 Lakeshore Drive Decker, Montana 59025 406.757.2581 |
Denver Office 385 Interlocken Crescent Suite 400 Broomfield, Colorado 80021 303.713.5000 |
Farmington Office P.O. Box 0958 Shiprock, New Mexico 87420 866.614.6575 |