Mdu Resources Group Inc – ‘10-K’ for 12/31/02 – EX-99

On:  Friday, 2/28/03, at 1:02pm ET   ·   For:  12/31/02   ·   Accession #:  67716-3-11   ·   File #:  1-03480

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Annual Report   —   Form 10-K
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        2002 Form 10-K                                        77±   329K 
 2: EX-10.B     Key Employee Stock Option Plan                        12±    47K 
 3: EX-10.C     Supplemental Income Security Plan                     15±    64K 
 4: EX-10.E     Deferred Compensation Plan for Directors              10±    39K 
 5: EX-10.T     Separation Agreement                                   9±    43K 
 6: EX-10.U     1998 Option Award Program                              9±    36K 
 7: EX-10.V     Group Genius Innovation Plan                          14±    55K 
 8: EX-12       Computation of Ratio of Earnings                       2±     8K 
 9: EX-13       2002 Annual Report                                    56±   259K 
10: EX-21       Subsidiaries of Mdu Resources Group, Inc.              2±    12K 
11: EX-23       Consent of Independent Auditors                        1      8K 
12: EX-99       Sarbanes-Oxley Act of 2002                             1      7K 

EX-99   —   Sarbanes-Oxley Act of 2002

MDU RESOURCES GROUP, INC.               

Statement Furnished Pursuant to Section 906               
of the 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 Annual Report on Form 10-K for the year            
ended December 31, 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 28th day of February, 2003.                                 

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

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

Dates Referenced Herein   and   Documents Incorporated by Reference

This ‘10-K’ Filing		Date		Other Filings
Filed on:		2/28/03
For Period End:		12/31/02		11-K,  8-K
				List all Filings