Board Members

David R. Emery, age 48, was elected Chairman in April 2005 and has been President and Chief Executive Officer and a member of the Board of Directors since January 2004. Prior to that, he was our President and Chief Operating Officer —Retail Business Segment from April 2003 to January 2004 and Vice President — Fuel Resources from January 1997 to April 2003. Mr. Emery has 21 years of experience with the Company.

David C. Ebertz, age 65, is President of Dave Ebertz Risk Management Consulting, a firm specializing in insurance and risk management services for schools and public entities, since 2000. He has previous experience in the insurance industry. Mr. Ebertz has served on our Board of Directors since 1998.

Jack W. Eugster, age 65, retired, was Chairman, Chief Executive Officer and President of Musicland Stores, Inc. from 1980 until his retirement in 2001. He was Non-Executive Chairman of Shopko Stores, Inc. a general merchandise discount store chain from 2001 to 2005. Mr. Eugster was elected to the Board of Directors in 2004 and currently chairs the Compensation Committee. He also serves on the board of directors of Donaldson Co., Inc., Graco, Inc., and Life Time Fitness.

John R. Howard, age 70, retired, was President of Industrial Products, Inc., which provided equipment and supplies to the mining and manufacturing industries, from 1992 to 2003 and was Special Projects Manager for Linweld, Inc. Mr. Howard was elected to the Board of Directors in 1977.

Stephen D. Newlin, age 58, is Chairman, President and Chief Executive Officer of PolyOne Corporation, a global premier provider of specialized polymer materials, services and solutions, since 2006. Prior to that he was President of the Industrial Sector of Ecolab, Inc., a global leader of services, specialty chemicals and equipment serving industrial and institutional clients, from 2003 to 2006. Mr. Newlin was elected to the Board of Directors in 2004 and currently chairs the Governance Committee. He also serves on the board of directors of Valspar Corporation.

Gary L. Pechota, age 61, is President and Chief Executive Officer of DT-TRAK Consulting, Inc., a medical billing services company, since December 2007. He was retired from 2005 to 2007. Prior to that he was Former Chief of Staff of the National Indian Gaming Commission from 2003 to 2005. He previously held executive positions in the cement industry and positions in finance and accounting. Mr. Pechota was elected to the Board of Directors in 2007. He also serves on the board of directors of Insteel Industries, Inc. and Texas Industries, Inc.

Rebecca B. Roberts, age 58, retired, was President of Chevron Pipe Line Company, a pipeline company transporting crude oil, refined petroleum products, liquefied petroleum gas, natural gas and chemicals within the United States, from 2006 to February 2011.  Prior to that, she was President of Chevron Global Power Generation from 2003 to 2006.  Ms. Roberts was elected to the Board of Directors in May 2011.

Warren L. Robinson, age 61, retired, was Executive Vice President, Treasurer and Chief Financial Officer of MDU Resources Group, Inc., a diversified energy and resources company, from 1992 until his retirement in January 2006. Mr. Robinson was elected to the Board of Directors in 2007 and currently chairs the Audit Committee. He also serves on the board of directors of TMI Systems Design Corporation.

John B. Vering, age 61, has been serving as Interim President and General Manager of Black Hills Exploration and Production, Inc., our oil and gas subsidiary, since May 2010. He has also been Managing Director of Lone Mountain Investments, Inc., agricultural and oil and gas investments, since 2002. He previously held several executive positions in the oil and gas industry. Mr. Vering was elected to the Board of Directors in 2005. He also serves on the board of directors of Broad Oak Energy, Inc.

Thomas J. Zeller, age 63, has been Chief Executive Officer of RESPEC, a technical consulting and services firm with expertise in engineering, information technologies and water and natural resources since Jan. 2011 and served as President from 1995 to Jan. 2011. Mr. Zeller has been a member of the Board of Directors since 1997 and currently serves as Presiding Director.