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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-17-000087
Filing Date
2017-11-03
Accepted
2017-11-03 09:20:26
Documents
98
Period of Report
2017-09-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q 9-30-2017 a2017q3form10-q.htm   iXBRL 10-Q 2355855
2 MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 8-30-2017 a2017q3ex10a.htm EX-10.A 13836
3 MDU RESOURCES SECTION 16 OFFICERS AND DIRECTORS a2017q3ex10b.htm EX-10.B 27887
4 MDU RESOURCES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES a2017q3ex12.htm EX-12 36695
5 MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2017q3ex31a.htm EX-31.A 9819
6 MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER a2017q3ex31b.htm EX-31.B 9250
7 MDU RESOURCES CERTIFICATION OF CEO AND CFO a2017q3ex32.htm EX-32 6477
8 MDU RESOURCES MINE SAFETY DISCLOSURES a2017q3ex95.htm EX-95 90878
  Complete submission text file 0000067716-17-000087.txt   11123788

Data Files

Seq Description Document Type Size
9 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20170930.xsd EX-101.SCH 58848
10 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20170930_cal.xml EX-101.CAL 124932
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20170930_def.xml EX-101.DEF 444899
12 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20170930_lab.xml EX-101.LAB 782426
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20170930_pre.xml EX-101.PRE 531141
14 EXTRACTED XBRL INSTANCE DOCUMENT a2017q3form10-q_htm.xml XML 2396541
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)

IRS No.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-03480 | Film No.: 171174800
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)