MDU Resources Announces Director's Intent to Sell Stock

BISMARCK, N.D.--(BUSINESS WIRE)--MDU Resources Group, Inc. (NYSE: MDU) today announced that outside Director Thomas Everist intends to file a Form 144 on May 8 with the Securities and Exchange Commission, indicating his intent to sell up to 600,000 shares of MDU Resources stock within the next three months.

Everist owns approximately 2.4 million shares of MDU Resources common stock, or 1.3 percent of outstanding shares. The majority of the shares were acquired in the sale of his construction materials company, Connolly-Pacific Co., to MDU Resources in 2000.

“MDU Resources is a great company, and I am proud to be a significant shareholder and a member of the Board of Directors,” said Everist. “I have held these shares for nearly eight years and am selling a portion of the stock to diversify my portfolio.”

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.

MDU Resources Group, Inc.
Financial contact:
Vernon A. Raile, 701-530-1003
Executive Vice President, Treasurer
and Chief Financial Officer
or
Phyllis A. Rittenbach, 701-530-1057
Director of Investor Relations
or
Media contact:
Richard Matteson, 701-530-1700
Director of Communications and Public Affairs