SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT 1934 MDU Resources Group, Inc. (Exact name of registrant as specified in its charter) Delaware 41-0423660 (State of incorporation (I.R.S. Employer or organization) Identification No.) 400 North Fourth Street, Bismarck, ND 58501 (Address of principal executive offices) (Zip Code) Securities to be registered pursuant to Section 12(b) of the Act: Title of each class Name of each exchange on which to be so registered each class is to be registered Common Stock, $3.33 par value Pacific Stock Exchange Securities to be registered pursuant to Section 12(g) of the Act: None Item 1. Description of Registrant's Securities to be Registered. The required information is incorporated by reference to the information set forth under the caption "Description of Securities" in the Registrant's Registration Statement on Form S-3 (Registration No. 33-66682), filed on July 29, 1993. Item 2. Exhibits. *3(i) Composite Certificate of Incorporation of MDU Resources Group, Inc., filed as Exhibit 4(a) in Registration Statement No. 33-13092 *3(ii) Bylaws of MDU Resources Group, Inc., filed as Exhibit 3(b) in the Company's Annual Report on Form 10-K for year ended December 31, 1993, File No. 1-3480 *4 Rights Agreement dated as of November 3, 1988, between MDU Resources Group, Inc. and Norwest Bank Minnesota, N.A., as Rights Agent, filed as Exhibit I.1,2 to the Company's Form 8-A, dated November 17, 1988 ___________ * Incorporated herein by reference. SIGNATURE Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized. MDU RESOURCES GROUP, INC. (Registrant) By:/s/ John A. Schuchart John A. Schuchart Chairman of the Board and Chief Executive Officer Date: September 20, 1994.