MDU Resources Group, Inc. (NYSE:MDU) will webcast its annual investor analyst seminar on March 15 from New York City.

During the analyst seminar, MDU Resources’ President and Chief Executive Officer Terry D. Hildestad and Executive Vice President, Treasurer and Chief Financial Officer Vernon A. Raile will be joined by the operating companies’ senior management to provide an update on the company’s operations strategy and financials.

The webcast will begin at 8:30 a.m. EST and conclude at noon EST March 15 with access available at www.mdu.com.

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. MDU Resources includes natural gas and oil production, natural gas pipelines and energy services, construction materials and mining, construction services, electric and natural gas utilities, and independent power production. For more information about MDU Resources, see the company's Web site at www.mdu.com or contact the Investor Relations Department at investor@mduresources.com.

Contact:
   Phyllis A. Rittenbach
   Director of Investor Relations
   (701) 530-1057