400 N. 4th Street
Bismarck, ND 58501
About MONTANA DAKOTA UTILITIES
More About MONTANA DAKOTA UTILITIES
MDU Resources Group, Inc., a member of the S&P MidCap 400 index, provides value-added natural resource products and related services that are essential to energy and transportation infrastructure, operating in three core lines of business: utility resources, energy and construction materials. MDU Resources includes electric and natural gas utilities, construction services, natural gas and oil production, natural gas pipelines and energy services, and construction materials and contracting.
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