MDU RESOURCES GROUP, INC.

MDU · NEW YORK STOCK EXCHANGE INC.

Water and Sewer Line and Related Structures Construction · United States

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.