About MDU Resources Group, Inc.
MDU Resources Group, Inc. is a U.S. energy holding company focused primarily on regulated electric and natural gas utilities and natural gas pipeline services. The company serves more than 1.2 million utility customers across eight states and operates approximately 3,800 miles of regulated natural gas pipeline systems, including underground storage facilities. MDU Resources was founded in 1924 as a small electric utility serving communities along the Montana–North Dakota border and has since developed into a diversified energy infrastructure company. In recent years, it has streamlined its operations by spinning off Knife River Corporation in 2023 and Everus Construction Group, Inc. in 2024, leaving MDU Resources focused on regulated energy delivery and pipeline operations. MDU Resources Group, Inc. was founded in 1924 and is headquartered in Bismarck, North Dakota, United States.