MDU RESOURCES GROUP, INC.


                Statement Pursuant to Section 906
                 of Sarbanes - Oxley Act of 2002


     Each of the undersigned, MARTIN A. WHITE, the Chairman of
the Board, President and Chief Executive Officer, and WARREN L.
ROBINSON, the Executive Vice President, Treasurer and Chief
Financial Officer of MDU RESOURCES GROUP, INC. (the "Company"),
DOES HEREBY CERTIFY that:

     1.   The Company's Quarterly Report on Form 10-Q for the quarter
ended June 30, 2002 (the "Report") fully complies with the
requirements of section 13(a) of the Securities Exchange Act of
1934, as amended; and

     2.   Information contained in the Report fairly presents, in all
material respects, the financial condition and results of
operation of the Company.

     IN WITNESS WHEREOF, each of the undersigned has executed
this statement this 13th day of August, 2002.


                              /s/ Martin A. White
                              Chairman of the Board, President and
                              Chief Executive Officer


                              /s/ Warren L. Robinson
                              Executive Vice President, Treasurer and
                              Chief Financial Officer