Otter Tail Corporation Declares Quarterly Dividend

Otter Tail Corporation Declares Quarterly Dividend

FARGO, N.D., Feb. 4, 2013 (GLOBE NEWSWIRE) -- Otter Tail Corporation
(Nasdaq:OTTR) announced today that the Board of Directors declared a quarterly
common dividend of $0.2975 cents per share, payable on March 9, 2013 to
shareholders of record on February 15, 2013. This represents the 297^th
consecutive quarter that dividends have been paid on common stock.

The Board also declared quarterly dividends on the corporation's four series
of preferred stock, payable March 1, 2013 to shareholders of record on
February 15, 2013. 

The corporation will issue a news release announcing 2012 financial results
after the market close on February 11, 2013.

About Otter Tail Corporation: Otter Tail Corporation has interests in
diversified operations that include an electric utility, manufacturing, and
infrastructure businesses. Otter Tail Corporation stock trades on the NASDAQ
Global Select Market under the symbol OTTR. The latest investor and corporate
information is available at www.ottertail.com. Corporate offices are located
in Fergus Falls, Minnesota, and Fargo, North Dakota.

The Otter Tail Corporation logo is available at
http://www.globenewswire.com/newsroom/prs/?pkgid=4958

CONTACT: Investor Relations
         (800) 664-1259

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