MDU Resources Group, Inc. (NYSE:MDU) will webcast its presentation to the financial community Thursday, March 6, at the 2008 Davenport Buildings Material Conference. MDU Resources’ President and Chief Executive Officer Terry D. Hildestad, Executive Vice President, Treasurer and Chief Financial Officer Vernon A. Raile, and William E. Schneider, President and Chief Executive Officer of Knife River Corporation will present a strategic and financial overview.

The webcast will begin at 9:50 a.m. EST and can be accessed at www.mdu.com. A webcast replay will be available.

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. The company operates in three core lines of business; energy, construction materials and utility resources. MDU Resources includes natural gas and oil production, natural gas pipelines and energy services, construction materials and contracting, construction services, and electric and natural gas utilities. 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