Dave Goodin Named President of Montana-Dakota Utilities and Great Plains Natural Gas

David L. Goodin has been named president of Montana-Dakota Utilities Co. and Great Plains Natural Gas Co., effective March 1, MDU Resources Group president and chief executive officer Terry D. Hildestad announced today. Goodin also will continue as president of Cascade Natural Gas Co. In his new positions, Goodin succeeds Bruce T. Imsdahl, who has announced that he plans to retire on June 5. Imsdahl will remain chief executive officer of all three utilities until then. "Dave has done an outstanding job of integrating Cascade as part of the MDU Resources utility business,” Hildestad said. "He has broad utility experience and a great team to work with. Dave will do an outstanding job of leading our utilities, which together serve about 500,000 natural gas customers and 120,000 electric customers in five Upper Midwest states, Washington and Oregon.” Goodin joined Montana-Dakota Utilities in 1983 as an electrical engineer and advanced through a number of positions. He was promoted to vice president of operations in 2000, and in January 2007 was named executive vice president of operations and acquisitions. In July 2007 he was named president of Cascade after MDU Resources acquired the company. He is a member of the executive committee of the North Central Electric Association, and has a long history of civic involvement, including Chambers of Commerce, the MSU-Billings College of Business Advisory Board and the YMCA. Goodin has an undergraduate degree in electrical and electronics engineering from North Dakota State University and a master’s degree in business administration from the University of North Dakota. He completed the Harvard Advanced Management Program in 2006. He also is a registered professional engineer. Goodin and his wife, Pat, have three daughters. 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, operating 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 mining, 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.