Contact the Upper Great Plains Regional Office
Mailing Address:
PO Box 35800
Billings, MT 59107-5800
406-255-2800
Toll Free: 1-800-358-3415
Fax: 406-255-2900
Safety & Security
406-255-2911
| Environment
406-255-2912
|
Power System Operations
605-882-7300
| Maintenance
605-353-2700
|
Power Marketing
406-255-2911
| Finance
406-255-2823
|
