Upper Missouri (UM) was organized in 1957 to serve transmission needs of rural electric cooperatives in eastern Montana and western North Dakota. Today, UM provides service to 11 distribution cooperatives, 6 in eastern Montana and 5 in western North Dakota. The 11 Member Systems serve 78,665 meters to farms, ranches, homes, and businesses in 37 counties, representing over 54,762 square miles.

Upper Missouri sources power from two major suppliers, Western Area Power Administration (WAPA) and Basin Electric Power Cooperative.  In 2021, the majority and increasing percentage was from Basin 96.87%; and WAPA 3.13%.

Upper Missouri has 225 delivery points, serves as the Southwest Power Pool (SPP) meter agent and is a transmission owner in Midcontinent Independent System Operator (MISO).

Upper Missouri  continues to have healthy sales growth due to the oil/gas development in the Bakken Oil Play.  We are now a 1,550 MW system.  Sales growth in 2021 was 6.03% over 2020 and continued growth is projected over the forecast period.

The headquarters facility for Upper Missouri is located in Sidney, Montana which is the county seat of Richland County.  The area ranks at or near the top of all Montana counties in a number of agriculture and other production areas.  It ranks second in oil production in the state and its livestock center is ranked sixth. The area also offers great recreational opportunities to relax in the “great outdoors” with many activities such as hunting, fishing, camping, hiking, golf, and boating.