Montana-Dakota Utilities, founded in 1924, is a regional energy provider delivering retail natural gas and electric service across parts of Montana, North Dakota, South Dakota, and Wyoming. The company's service territory spans more than 168,000 square miles - roughly 5.5% of the continental United States - encompassing 273 communities and approximately 435,000 customers.
Of that total, nearly 144,000 are electric customers (residential, commercial, and industrial) served across 185 communities. The company operates in the energy and utilities sector, with a stated commitment to providing affordable and reliable energy services and supporting the growth and prosperity of the communities it serves.






