As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 6/23/04  MDU Resources Group, Inc.         11-K       12/31/03    1:27K                                                             
 3/15/04  MDU Resources Group, Inc.         ARS        12/31/03    1:2K                                     SEC #7                   
 2/27/04  MDU Resources Group, Inc.         10-K       12/31/03   17:549K                                                            
 1/22/04  MDU Resources Group, Inc.         8-K:5,7,12 12/31/03    2:30K                                                             
  1/5/04  Everist Thomas S                  4          Director²   1:9K   MDU Resources Group, Inc.         MDU Resources Gp, Inc.   
  1/5/04  Nance Robert L                    4          Director²   1:10K  MDU Resources Group, Inc.         MDU Resources Gp, Inc.   
  1/5/04  Pearce Harry J                    4          Director²   1:7K   MDU Resources Group, Inc.         MDU Resources Gp, Inc.   
  1/5/04  Wilson John K                     4          Director²   1:4K   MDU Resources Group, Inc.         MDU Resources Gp, Inc.   
  1/5/04  Johnson Dennis W                  4          Director²   1:6K   MDU Resources Group, Inc.         MDU Resources Gp, Inc.   
  1/5/04  Scott Homer A Jr.                 4          Director²   1:9K   MDU Resources Group, Inc.         MDU Resources Gp, Inc.   
  1/5/04  Moss Patricia L                   4/A        Director²   1:4K   MDU Resources Group, Inc.         MDU Resources Gp, Inc.   
  1/2/04  Johnson Dennis W                  5          Director²   1:5K   MDU Resources Group, Inc.         MDU Resources Gp, Inc.   
  1/2/04  Albertson Bruce R                 4          Director²   1:6K   MDU Resources Group, Inc.         MDU Resources Gp, Inc.   

____________
¹	Filing/Form Types:  -K
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
	5	Annual Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 5 { The Filer is an Insider² of the Issuer }.
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials — Pre-8/23/04... Item 1: Control;  2: Assets;  3: Bankruptcy;  4: Accountants;  5: Events;  6: Resignations;  7: Financials;  8: FY;  9: Regs. FD & S;  10: Ethics;  11: Suspensions;  12: Results;  13: Notices }.
	10-K	Annual Report — Form 10-K.
	11-K	Annual Report by an Employee Stock Purchase, Savings or Similar Plan — Form 11-K.
	ARS	Annual Report to Security Holders.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.