<SEC-DOCUMENT>0000067716-14-000107-index.html : 20140819 <SEC-HEADER>0000067716-14-000107.hdr.sgml : 20140819 <ACCEPTANCE-DATETIME>20140819110804 ACCESSION NUMBER: 0000067716-14-000107 CONFORMED SUBMISSION TYPE: 8-A12B/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20140819 DATE AS OF CHANGE: 20140819 FILER: 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: 410423660 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-A12B/A SEC ACT: 1934 Act SEC FILE NUMBER: 001-03480 FILM NUMBER: 141051062 BUSINESS ADDRESS: STREET 1: 1200 WEST CENTURY AVENUE CITY: BISMARCK STATE: ND ZIP: 58503 BUSINESS PHONE: 701-530-1059 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 </SEC-HEADER> <DOCUMENT> <TYPE>8-A12B/A <SEQUENCE>1 <FILENAME>form8-aa.htm <DESCRIPTION>8-A12B/A <TEXT> Document 1 - file: form8-aa.htm
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