2012 First Quarter Dividend

Ithaca, Michigan, February 22, 2012—

Jeffrey S. Barker, President and CEO of Commercial Bank and its holding company,
Commercial National Financial Corporation, announced that on February
15, 2012, the corporation’s Board of Directors declared a cash dividend of 13
cents per share. The dividend will be paid on April 2, 2012, to shareholders of record
as of March 16, 2012. This dividend represents an annualized yield of 6.1%
based upon recent common stock prices.

Commercial Bank operates full service banking offices in Alma, Greenville,
Hastings, Ithaca, Lake Odessa, Middleton, Mount Pleasant, and St. Louis.

Contact:
Daniel E. Raleigh
Vice President
989-875-5504


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