MDU Resources Group, Inc. operates primarily through three business segments: Electric Utility, Natural Gas Distribution, and Pipeline. The company's utility operations deliver safe and reliable energy to approximately 1.2 million customers across eight states, including North Dakota, South Dakota, Montana, Wyoming, Idaho, Washington, and Oregon. Its pipeline segment, WBI Energy, manages a 3,800-mile natural gas transportation and underground storage network that serves the Northern Plains region. Historically a diversified conglomerate, MDU Resources completed a strategic transformation into a pure-play regulated energy business by spinning off its Knife River construction materials unit in 2023 and its Everus Construction Group in 2024. Today, the company focuses on expanding its utility rate base, modernizing its grid infrastructure, and growing its pipeline capacity to meet regional energy demands.
