Electric and Natural Gas Utilities
Our utility companies serve approximately 1.14 million customers across eight states.
Cascade Natural Gas Corporation distributes natural gas in Oregon and
Washington. Great Plains Natural Gas Co. distributes natural gas in western
Minnesota and southeastern North Dakota. Intermountain Gas Company distributes
natural gas in southern Idaho. Montana-Dakota Utilities Co. generates, transmits
and distributes electricity and distributes natural gas in Montana, North Dakota, South
Dakota and Wyoming. These operations also supply related value-added services.