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Press Release

MDU RESOURCES GROUP INC (NYSE: MDU)
1200 West Century Avenue
Bismarck, ND 58506-5650
www.mdu.com

Nov 12, 2009 – DIVIDEND STOCKS: MDU Resources Group (NYSE: MDU) today increased the quarterly Dividend to $.1575 cents

For Immediate Release

Boston, MA., Nov 12, 2009 – MDU Resources Group (NYSE: MDU) today increased the quarterly dividend to $.1575 cents per share, for an annualized dividend of $.6300 cents per share.

MDU RESOURCES GROUP INC (NYSE: MDU) has paid dividends since 1937 and has a current dividend yield of 2.9%.

MDU RESOURCES GROUP INC’s current dividend information as per the date of this press release is:
Dividend Declaration Date: Feb-12-2010
Dividend Ex Date: Mar-09-2010
Dividend Record Date: Mar-11-2010
Dividend Payment Date: Apr-01-2010
Dividend Amount: 0.1575  

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