BLACK HILLS CORP. ANNOUNCES NEW VICE PRESIDENT OF FINANCE

Media Contacts:
Lynn Wilson 605-721-2774
Media Relations line 866-243-9002
Investor Relations:
Jason Ketchum 605-721-2765

RAPID CITY, S.D., November 4, 2008 — Black Hills Corp. (NYSE: BKH) today announced the promotion of Jeff Berzina to the position of vice president of finance effective immediately.

Anthony Cleberg, executive vice president and chief financial officer for Black Hills Corp., said that the recent Aquila transaction created the need for increased financial support and stronger financial leadership capabilities. Berzina will be responsible for financial planning and reporting, including SEC reporting and corporate forecasting and budgeting. In addition, he will continue to have accounting operations responsibility for energy marketing and oil and gas segments. “Jeff’s strong understanding of the company’s businesses and strategies combined with his accounting skills will continue to strengthen our financial control structure. He has demonstrated strong leadership to insure compliant reporting of acquisitions, divestitures and the increased SEC requirements,” Cleberg said.

Berzina is a University of South Dakota graduate and a Certified Public Accountant. Prior to joining the company in 2000, he worked for six years in public accounting with Ketel Thorstenson in Rapid City.

ABOUT BLACK HILLS CORP.
Black Hills Corp. — a diversified energy company with a tradition of exemplary service and a vision to be the energy partner of choice — is based in Rapid City, S.D., with corporate offices in Golden, Colo., and Omaha, Neb. The utility companies serve 750,000 natural gas and electricity customers in Colorado, Iowa, Kansas, Montana, South Dakota and Wyoming. The company’s non-regulated businesses generate wholesale electricity, produce natural gas, oil and coal, and market energy. Black Hills employees partner to produce results that improve life with energy. More information is available at www.blackhillscorp.com.

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