MDU Resources Group Inc.

John G. Harp - 56 ( 33 ) President and Chief Executive Officer, MDU Construction Services Group Inc. Formerly owned construction services companies that were acquired by MDU Resources.

Terry D. Hildestad - 59 ( 34 ) President and Chief Executive Officer, MDU Resources. Serves on the company’s Board of Directors and as chairman of the board of all major subsidiary companies; formerly chief operating officer of MDU Resources and formerly president and chief executive officer of Knife River Corp..

Vernon A. Raile - 63 ( 28 ) Executive Vice President, Treasurer and Chief Financial Officer, MDU Resources. Serves as the senior financial officer and member of the boards of directors of all major subsidiary companies; formerly chief accounting officer of MDU Resources.

Cynthia J. Norland - 54 ( 24 ) Vice President of Administration, MDU Resources. Formerly associate general council of MDU Resources.

Mark Del Vecchio - 49 ( 5 ) Vice President of Human Resources, MDU Resources. Formerly director of compensation and executive programs of MDU Resources.

David L. Goodin - 47 ( 25 ) President and Chief Executive Officer, Montana-Dakota Utilities Co., Great Plains Natural Gas Co., Cascade Natural Gas Corp. and Intermountain Gas Co. Formerly executive vice president of operations and acquisitions.

Paul K. Sandness - 54 ( 28 ) General Counsel and Secretary, MDU Resources. Serves as general counsel and secretary of all major company subsidiaries; formerly senior attorney and held other positions of increasing responsibility with MDU Resources

William E. Schneider - 59 ( 15 ) President and Chief Executive Officer, Knife River Corp. Serves as chief executive officer of all construction materials and contracting subsidiaries of Knife River; formerly senior vice president of construction materials of Knife River.

City Commission President Dennis W. Johnson is Chairman, Chief Executive officer, and majority stockholder of TMI Systems Design Corporation, TMI Transport Corporation, and TMI Storage Systems Corporation all of Dickinson, North Dakota. Mr. Johnson is a native of Tioga, North Dakota. He is a graduate of North Dakota State University with a Bachelor of Science degree in Electrical and Electronics Engineering and a Master of Science degree in Industrial Engineering with a business finance minor. He joined TMI in 1974 as Plant Industrial Engineer, becoming President in 1982, majority stockholder in 1985, and Chairman in 1999. Mr. Johnson was elected to a four-year term as President of the Dickinson City Commission in June 2000 receiving 79% of the vote. He currently serves as a board member of the Dickinson State University Foundation, member of the executive committee of the University of Mary Harold Schafer Leadership Center, and Chairperson of the Theodore Roosevelt Medora Foundation. He is a member of the business advisory councils for Steffes Corporation and Consolidated Telephone. He is a member of the board of directors from MDU Resources Group, Inc. MDU Resources provides energy, value-added natural resources products and related services that are essential to the country's energy, transportation and communication infrastructure. MDU Resources includes electric and natural gas utilities, a natural gas pipeline, utility services, natural gas and oil production, construction materials and mining, and energy services. Mr. Johnson is a former Director of the Federal Reserve Bank of Minneapolis having served two three-year terms beginning in January 1993. He was chair of the small business, industry, and labor advisory council and chair of the bank's audit committee. He is past Chairperson of the North Dakota Workforce Development Council, the Decorative Laminate Products Association, the North Dakota Technology Corporation, St. Joseph Hospital Life Care Foundation, St. John Evangelical Lutheran Church, and Dickinson United Way. He has twice chaired the Dickinson State University Presidential Search Committee with the first search occurring during 1994-95 and the second during 1998-99. Mr. Johnson, following the November 2000 election, chaired Governor John Hoeven's transition team. He was the honorary co-chair of the Hoeven for Governor committee and delivered the nominating speech for John Hoeven at the 2000 state Republican convention. He has served of Governor Sinner's Education Action Commission, North Dakota Job Service Advisory Council, Governor Schafer's 1992 Transition Team and the North Dakota Vision 2000 Committee. Mr. Johnson is the recipient of the 1990 Dickinson State University Meritorious Service Award, the Small Business Administration 1991 North Dakota Small Business Person of the Year Award and the 1991 Regional Small Business Person of the Year Award. He received the GNDA (state chamber of commerce) Greater North Dakotan Award in 1991. He and his wife, Nancy, have three children, Tim, Amie, and Christopher. Nancy Johnson is a graduate of North Dakota State University and is active in the Dickinson community. She served fifteen years as a member of the Dickinson School Board holding local, state, and national leadership positions. Currently, she is a member of the North Dakota House of Representatives.

Harry J. Pearce - 66 ( 12 ) Detroit, Michigan Expertise: Multinational business management, finance, engineering and law 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; a director of several major corporations.

John L. Olson - 69 ( 24 ) Sidney, Montana Expertise: Marketing, finance, business development and franchising. President and chief executive officer of Blue Rock Products Co. and Blue Rock Distributing Co., beverage bottling and distributing companies, and chairman of Admiral Beverage Corp.; a director of a health insurance company.

Thomas Everist - 59 ( 14 ) Sioux Falls, South Dakota Expertise: Business management, construction and sand, gravel and aggregate production President and chairman of The Everist Co., a construction materials company; a director of several corporations.

A. Bart Holaday - 66 ( 1 ) Placitas, New Mexico and Grand Forks, North Dakota Expertise: Natural gas and oil industry, business development, finance and law. Retired, formerly managing director of Private Markets Group of UBS Asset Management; on the boards of several organizations.

John K. Wilson - 54 ( 6 ) Omaha, Nebraska Expertise: Finance and natural gas industry. President of Durham Resources LLC, a privately held financial management company, and president of Durham Foundation; a director of a mutual fund.

Karen B. Fagg - 55 ( 4 ) Billings, Montana Expertise: Engineering and business management. Vice president and a principal owner of DOWL HKM, formerly president and majority owner of HKM Engineering Inc. and vice president of operations for Mountain States Energy Inc.; on the boards of several organizations.

Patricia L. Moss - 55 ( 6 ) Bend, Oregon Expertise: Finance and human resources. President, chief executive officer and a director of Cascade Bancorp and Bank of the Cascades; a director of several other corporations

Richard H. Lewis - 59 ( 4 ) Denver, Colorado Expertise: Natural gas and oil industry. 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 Entre Pure Industries Inc., a privately held purified water and ice business; a board member of Colorado Oil and Gas Association and a director of Colorado State Bank and Trust.

Sister Thomas Welder, O.S.B. - 68 ( 21 ) Bismarck, North Dakota Expertise: Business development and management. President of University of Mary; a director of several organizations.

Thomas C. Knudson - 62 ( 1 ) Houston, Texas Expertise: Natural gas and oil industry, sustainable development and engineering. President of Tom Knudson Interests LLC, providing consulting services in energy, sustainable development and leadership; former senior vice president of human resources, information management and communications of ConocoPhillips.