UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                      WASHINGTON, D.C. 20549




                             FORM 8-K



                          CURRENT REPORT



        PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES
                       EXCHANGE ACT OF 1934


Date of Report (Date of earliest event reported) November 29, 2004


                     MDU Resources Group, Inc.
      (Exact name of registrant as specified in its charter)



        Delaware                 1-3480            41-0423660
(State or other jurisdiction  (Commission       (I.R.S. Employer
    of incorporation)          File Number)    Identification No.)





                        Schuchart Building
                      918 East Divide Avenue
                           P.O. Box 5650
                 Bismarck, North Dakota 58506-5650
             (Address of principal executive offices)
                            (Zip Code)

 Registrant's telephone number, including area code (701) 222-7900


Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant
under any of the following provisions:

   - Written communications pursuant to Rule 425 under the
     Securities Act (17 CFR 230.425)
   - Soliciting material pursuant to Rule 14a-12 under the Exchange
     Act (17 CFR 240.14a-12)
   - Pre-commencement communications pursuant to Rule 14d-2(b)
     under the Exchange Act (17 CFR 240.14d-2(b))
   - Pre-commencement communications pursuant to Rule 13e-4(c)
     under the Exchange Act (17 CFR 240.13e-4(c))



Item 8.01.  Other Events.

   MDU Resources Group, Inc.'s press release regarding earnings
guidance for 2004 and 2005 is attached to this Form 8-K as Exhibit
99 and incorporated herein by reference.



Item 9.01.  Financial Statements and Exhibits.

   (c)    Exhibits.

          Exhibit 99 - Press release issued November 29, 2004,
          regarding earnings guidance for 2004 and 2005.



                             SIGNATURE

  Pursuant to the requirements of the Securities Exchange Act of
1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned hereunto duly authorized.


                            MDU RESOURCES GROUP, INC.

Date   November 29, 2004    BY   /s/ Warren L. Robinson
                                 Warren L. Robinson
                                 Executive Vice President and
                                 Chief Financial Officer



                           EXHIBIT INDEX


Exhibit Number                        Description of Exhibit

   99                                 Press release issued November 29, 2004,
                                      regarding earnings guidance for 2004
                                      and 2005.