Terry D. Hildestad, president and chief executive officer of MDU Resources Group, Inc. (NYSE:MDU), will present an overview of the company on Thursday, Sept. 7, at the Lehman Brothers CEO Energy/Power Conference.

The webcast is scheduled to begin at 1:05 p.m. EDT and can be accessed at www.mdu.com. A 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. MDU Resources includes natural gas and oil production, construction materials and mining, domestic and international independent power production, natural gas pipelines and energy services, electric and natural gas utilities, and construction services. 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