Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-17-000042
Filing Date
2017-05-08
Accepted
2017-05-08 09:43:52
Documents
83
Period of Report
2017-03-31

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q 3-31-2017 a2017q1form10-q.htm 10-Q 1352073
2 MDU RESOURCES 401 K RETIREMENT PLAN RESTATEMENT 1-1-2017 a2017q1ex10a.htm EX-10.A 971221
3 MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 3-31-17 a2017q1ex10b.htm EX-10.B 24045
4 MDU RESOURCES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES a2017q1ex12.htm EX-12 36695
5 MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2017q1ex31a.htm EX-31.A 9814
6 MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER a2017q1ex31b.htm EX-31.B 9237
7 MDU RESOURCES CERTIFICATION OF CEO AND CFO a2017q1ex32.htm EX-32 6449
8 MDU RESOURCES MINE SAFETY DISCLOSURES a2017q1ex95.htm EX-95 92186
  Complete submission text file 0000067716-17-000042.txt   9624234

Data Files

Seq Description Document Type Size
9 XBRL INSTANCE DOCUMENT mdu-20170331.xml EX-101.INS 2003559
10 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20170331.xsd EX-101.SCH 57056
11 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20170331_cal.xml EX-101.CAL 126287
12 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20170331_def.xml EX-101.DEF 386010
13 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20170331_lab.xml EX-101.LAB 792550
14 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20170331_pre.xml EX-101.PRE 469508
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)

EIN.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-03480 | Film No.: 17820859
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)