<SEC-DOCUMENT>0001104659-19-065108-index.html : 20191118 <SEC-HEADER>0001104659-19-065108.hdr.sgml : 20191118 <ACCEPTANCE-DATETIME>20191118163200 ACCESSION NUMBER: 0001104659-19-065108 CONFORMED SUBMISSION TYPE: S-8 PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20191118 DATE AS OF CHANGE: 20191118 EFFECTIVENESS DATE: 20191118 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: 301133956 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: S-8 SEC ACT: 1933 Act SEC FILE NUMBER: 333-234760 FILM NUMBER: 191227953 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 </SEC-HEADER> <DOCUMENT> <TYPE>S-8 <SEQUENCE>1 <FILENAME>a19-23003_1s8.htm <DESCRIPTION>S-8 <TEXT> Document 1 - file: a19-23003_1s8.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.(A) <SEQUENCE>2 <FILENAME>a19-23003_1ex5da.htm <DESCRIPTION>EX-5.(A) <TEXT> Document 2 - file: a19-23003_1ex5da.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.(A) <SEQUENCE>3 <FILENAME>a19-23003_1ex23da.htm <DESCRIPTION>EX-23.(A) <TEXT> Document 3 - file: a19-23003_1ex23da.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.(B) <SEQUENCE>4 <FILENAME>a19-23003_1ex23db.htm <DESCRIPTION>EX-23.(B) <TEXT> Document 4 - file: a19-23003_1ex23db.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g230031kci001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g230031kci001.jpg
</DOCUMENT> </SEC-DOCUMENT>