Dividend History | MDU Resources Group, Inc.

Ex-Dividend Date	Record Date	Announce Date	Pay Date	Type of Dividend
7/27/2006	7/12/2006	5/11/2006	7/26/2006	3-for-2 stock split
10/30/2003	10/10/2003	8/14/2003	10/29/2003	3-for-2 stock split
7/14/1998	7/3/1998	5/14/1998	7/13/1998	3-for-2 stock split
10/16/1995	9/27/1995	8/17/1995	10/13/1995	3-for-2 stock split