MDU Resources Group, Inc.

Bismarck, ND 58503

Company Details
1200 W. Century Ave.
Bismarck, ND 58503
Phone:866-760-4852

MDU Resources Group, Inc., a member of the S&P MidCap 400 index and the S&P High-Yield Dividend Aristocrats index, is Building a Strong America® by providing essential products and services through its regulated energy delivery and construction materials and services businesses. For more information about MDU Resources, see the company's website at www.mdu.com or contact the Investor Relations Department at investor@mduresources.com.

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