MDU Resources Group Inc.

Public Company, Headquarters Location
PO Box 5650, Bismarck, ND 58506-5650, United States
(800)437-8000, (701)530-1000, (701)530-1698 fax, http://www.mdu.com

Primary SIC: Gas And Other Services Combined, Primary NAICS: Natural Gas Distribution
Description: Founded in 1924, MDU Resources Group incorporated in Delaware and went public on the New York Stock Exchange. MUD Resources operates in three core lines of business: energy, construction materials and utility resources. The businesses include natural gas and oil production, natural gas pipelines and energy services, construction materials and contracting, construction services, and electric and natural gas utilities. The company's construction materials and contracting division mines and sells concrete, gravel, and other building materials. MDU Resources' energy businesses include natural gas transmission, gathering, and storage; energy marketing; and oil and gas exploration and production. Headquartered in Bismarck, North Dakota, the company electric and natural gas distribution segments, generates, transmits and distributes electricity and distributes natural gas in Montana, North Dakota, South Dakota and Wyoming. Cascade distributes natural gas in Washington and Oregon. Intermountain distributes natural gas in Idaho. Great Plains distributes natural gas in western Minnesota and southeastern North Dakota. The company's utility subsidiaries, Montana-Dakota Utilities, Great Plains Natural Gas and Cascade Natural Gas, deliver natural gas to more than 500,000 customers and electricity to more than 120,000 customers. MDU Resources' Construction Services, (including Knife River) unit builds power lines, pipelines, and telecom systems. More

Utilities: electric and natural gas utilities, a natural gas pipeline, utility services, natural gas and oil production, construction materials and mining, and energy services. Finance: holding company.