MDU Resources Changes Construction Operations Leadership

Consolidators' construction operations exceeded $2.3 billion in revenues over the 12 months ended Sept. 30

MDU Resources Group Inc. (NYSE:MDU) today announced that John G. Harp has been named chief executive officer of Knife River Corp. He also will continue in the position of CEO of MDU Construction Services Group Inc. Together, MDU Resources’ construction operations have exceeded revenues of $2.3 billion over the 12-month period ending Sept. 30 and have more than 7,000 employees during peak construction season.

MDU Resources also has selected Dave Barney to be president of Knife River and Jeff Thiede to be president of MDU Construction Services Group. Barney and Thiede will report to Harp.

“We are combining our construction businesses under one leader to grow our operations and better take advantage of opportunities in the construction industries,” said Terry D. Hildestad, president and chief executive officer of MDU Resources. “Reorganizing our construction companies simplifies our ability to collaborate across the different types of construction businesses. We will be better able to utilize people, assets and equipment, as well as make it easier for our shareholders to understand our results.

“John has a proven track record of success in the construction business, and a significant ability to develop talented leaders and efficient teams of employees,” Hildestad said. “With Dave overseeing the construction materials and contracting side and Jeff overseeing the construction services side of our operations, John will have a strong management team in place to continue producing excellent results from our businesses.”

Harp has been president and CEO of MDU Construction Services Group since 2004. He joined MDU Resources when his construction business was acquired in 1998.

Barney was named president of Knife River’s Western Area operations in 2008, after holding several positions of increasing responsibility within Knife River.

Thiede has been president of Oregon Electric Group since 2004 and president of Capital Electric Construction since 2006; both are MDU Construction Services Group companies.

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, including regulated businesses, an exploration and production company and construction companies. MDU Resources includes regulated electric and natural gas utilities and regulated natural gas pipelines and energy services, natural gas and oil production, construction materials and contracting, and construction services. For more information about MDU Resources, see the company's website at or contact the Investor Relations Department at