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First Interstate BancSystem, Inc. Announces Quarterly Dividend

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^{Published in Business and Finance on Friday, September 24th 2010 at 14:00 GMT by Market Wire}  

BILLINGS, Mont.--([ BUSINESS WIRE ])--First Interstate BancSystem, Inc.a™s (Nasdaq: FIBK) Board of Directors, at a meeting held on September 23, 2010, declared a quarterly dividend of $.1125 per common share. The dividend is payable on October 15, 2010 to owners of record on October 4, 2010.

First Interstate BancSystem, Inc. is a financial services holding company, headquartered in Billings, Montana, with $7.2 billion in assets as of June 30, 2010. It is the parent company of First Interstate Bank, a community bank operating 72 offices throughout Montana, Wyoming and western South Dakota. As a recognized leader in community banking services with 22 consecutive years of profitability, First Interstate remains a family business whose culture is driven by strong family and corporate values, as well as a commitment to long-term organic growth, exemplary customer service, exceeding customer expectations through its products and services and supporting with leadership and resources, the communities it serves.