EDGAR Filing Documents for 0000067716-13-000125

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:

SEC Accession No. 0000067716-13-000125

Filing Date

2013-11-07

Accepted

2013-11-07 10:18:26

Documents

Period of Report

2013-09-30

Document Format Files

Seq	Description	Document	Type	Size
1	MDU RESOURCES GROUP, INC. 3RD QUARTER 2013 FORM 10-Q	mdu-9302013x10q.htm	10-Q	1773912
2	SECTION 16 OFFICERS AND DIRECTORS	mdu9302013q3ex10a.htm	EX-10.A	32445
3	AMENDMENT TO 401 K RETIREMENT PLAN	mdu-9302013q3ex10b.htm	EX-10.B	18514
4	AMENDMENT TO 401 K RETIREMENT PLAN	mdu-9302013q3ex10c.htm	EX-10.C	32683
5	AMENDMENT TO 401 K RETIREMENT PLAN	mdu-9302013q3ex10d.htm	EX-10.D	10343
6	COMPUTATION OF RATIO TO EARNINGS TO FIXED CHARGES	mdu-9302013q3ex12.htm	EX-12	40110
7	CERTIFICATION OF CHIEF EXECUTIVE FINANCIAL OFFICER	mdu-9302013q3ex31a.htm	EX-31.A	9874
8	CERTIFICATION OF CHIEF FINANCIAL OFFICER	mdu-9302013q3ex31b.htm	EX-31.B	9287
9	CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER	mdu-9302013q3ex32.htm	EX-32	7084
10	MINE SAFETY DISCLOSURES	mdu-9302013q3ex95.htm	EX-95	119453
	Complete submission text file	0000067716-13-000125.txt		11834468

Data Files

Seq	Description	Document	Type	Size
11	XBRL INSTANCE DOCUMENT	mdu-20130930.xml	EX-101.INS	2150820
12	XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT	mdu-20130930.xsd	EX-101.SCH	65221
13	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT	mdu-20130930_cal.xml	EX-101.CAL	99116
14	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT	mdu-20130930_def.xml	EX-101.DEF	316845
15	XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT	mdu-20130930_lab.xml	EX-101.LAB	793609
16	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT	mdu-20130930_pre.xml	EX-101.PRE	408642

Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503

Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1059

MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)