Numbers indicate age and years of service ( ) on MDU Resources Board of Directors as of December 31, 2006.

Harry J. Pearce, 64 (10)
Detroit, Michigan
Chairman of MDU Resources Board of Directors
Retired, formerly chairman of Hughes Electronics Corp., a unit of General Motors Corp., and former vice chairman and director of GM; also serves as a director of several major corporations.
Expertise: Multinational business management, finance, engineering and law


Thomas Everist, 57 (12)
Sioux Falls, South Dakota
President and chairman of The Everist Co., an aggregate, concrete and asphalt production company; also serves as a director of several other corporations.
Expertise: Business management, construction and sand, gravel and aggregate production


Karen B. Fagg, 53 (2)
Billings, Montana
President and majority owner of HKM Engineering, Inc., formerly vice president of operations for Mountain States Energy, Inc.; also serves on the boards of several organizations.
Expertise: Engineering


Dennis W. Johnson, 57 (6)
Dickinson, North Dakota
Chairman and chief executive officer of TMI Systems Design Corp., a manufacturer of custom institutional furniture; and former director of Federal Reserve Bank of Minneapolis.
Expertise: Business management, engineering and finance


Richard H. Lewis, 57 (2)
Denver, Colorado
Founder and former chairman, president and chief executive officer of Prima Energy Corp., a natural gas and oil exploration and production company, and chairman of the board of Entre Pure Industries, Inc., a privately held purified water and ice business; also a board member of the Colorado Oil and Gas Association and a director of Colorado State Bank and Trust.
Expertise: Natural gas and oil industry


Patricia L. Moss, 53 (4)
Bend, Oregon
President, chief executive officer and a director of Cascade Bancorp and Bank of the Cascades; also serves as a director of several other corporations.
Expertise: Finance and human resources


John L. Olson, 67 (22)
Sidney, Montana
President and chief executive officer of Blue Rock Products Co. and Blue Rock Distributing Co., beverage bottling and distributing companies, and chairman of the board of Admiral Beverage Corp. with operations and franchises in the Rocky Mountain states; also serves as a director of a health insurance company.
Expertise: Marketing, finance and western U.S. business development and franchising


Sister Thomas Welder, O.S.B., 66 (19)
Bismarck, North Dakota
President of University of Mary, a director of several organizations and a past member of the Consultant-Evaluator Corps for the North Central Association of Colleges and Schools
Expertise: Business development and management


John K. Wilson, 52 (4)
Omaha, Nebraska
President of Durham Resources, LLC, a privately held financial management company, and president of the Durham Foundation and director of a mutual fund
Expertise: Finance and natural gas industry

Terry D. Hildestad, 57 (1)
Bismarck, North Dakota
President and Chief Executive Officer
Formerly chief operating officer of MDU Resources and formerly president and chief executive officer of Knife River Corporation
Expertise: Business development and management

Committees and Charters