<SEC-DOCUMENT>0000067716-15-000052-index.html : 20150507
<SEC-HEADER>0000067716-15-000052.hdr.sgml : 20150507
<ACCEPTANCE-DATETIME>20150506183156
ACCESSION NUMBER:		0000067716-15-000052
CONFORMED SUBMISSION TYPE:	8-K/A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20150504
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Regulation FD Disclosure
FILED AS OF DATE:		20150507
DATE AS OF CHANGE:		20150506

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-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03480
		FILM NUMBER:		15838758

	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-K/A
<SEQUENCE>1
<FILENAME>mdu3-31x2015form8xkaearnin.htm
<DESCRIPTION>MDU RESOURCES FORM 8-K/A EARNINGS RELEASE 3.31.15
<TEXT>
Document 1 - file: mdu3-31x2015form8xkaearnin.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>mdu03-31x2015earningreleas.htm
<DESCRIPTION>EXHIBIT 99
<TEXT>
Document 2 - file: mdu03-31x2015earningreleas.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>newpressreleaseagraphic.jpg
<DESCRIPTION>MDU RESOURCES LOGO
<TEXT>
Document 3 - file: newpressreleaseagraphic.jpg

</DOCUMENT>
</SEC-DOCUMENT>