0001225208-21-008204.txt : 20210517 0001225208-21-008204.hdr.sgml : 20210517 20210517153140 ACCESSION NUMBER: 0001225208-21-008204 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210511 FILED AS OF DATE: 20210517 DATE AS OF CHANGE: 20210517 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Rosenthal Dale CENTRAL INDEX KEY: 0001620924 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-03480 FILM NUMBER: 21929890 MAIL ADDRESS: STREET 1: 101 CONSTITUTION AVENUE, NW CITY: WASHINGTON STATE: DC ZIP: 20080 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MDU RESOURCES GROUP INC CENTRAL INDEX KEY: 0000067716 STANDARD INDUSTRIAL CLASSIFICATION: MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400] IRS NUMBER: 301133956 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1200 WEST CENTURY AVENUE CITY: BISMARCK STATE: ND ZIP: 58503 BUSINESS PHONE: 701-530-1000 MAIL ADDRESS: STREET 1: 1200 WEST CENTURY AVENUE CITY: BISMARCK STATE: ND ZIP: 58503 FORMER COMPANY: FORMER CONFORMED NAME: MONTANA DAKOTA UTILITIES CO DATE OF NAME CHANGE: 19850429 3 1 doc3.xml X0206 3 2021-05-11 1 0000067716 MDU RESOURCES GROUP INC MDU 0001620924 Rosenthal Dale 1200 WEST CENTURY AVENUE BISMARCK ND 58503 1 poarosenthal.txt /s/ Dale S. Rosenthal 2021-05-17