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| Colorado Yampa Coal Company | 970-879-3800 | 29579 Routt County Rd 27 | Oak Creek | CO | 80467 |
| Colowyo Coal Company Lp | 970-824-4451 | 5731 Hwy 13 | Craig | CO | 81626 |
| Cyprus Empire Corporation | 970-824-8246 | 1303 County Rd 107 | Craig | CO | 81626 |
| Kc Haulers | 970-259-4481 | 1315 Main Ave | Durango | CO | 81301 |
| Kerr Coal Co | 970-723-4721 | 3178 County Rd 12 E | Walden | CO | 80480 |
| Oakridge Energy Inc | 970-385-4451 | 278 Sawyer Dr | Durango | CO | 81301 |
| Pittsburg & Midway Coal Mining Co Edna Mine | 970-736-8111 | 26990 Highway 131 | Oak Creek | CO | 80467 |