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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-19-000060
Filing Date
2019-08-02
Accepted
2019-08-02 09:15:34
Documents
120
Period of Report
2019-06-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q 6-30-2019 a2019q2form10-q.htm   iXBRL 10-Q 3317753
2 MDU RESOURCES CEHI NPA 12-20-2012 a2019q2ex4a.htm EX-4.A 586497
3 MDU RESOURCES DIRECTOR COMPENSATION POLICY 5-8-2019 a2019q2ex10a.htm EX-10.A 34679
4 MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 4-25-2018 a2019q2ex10b.htm EX-10.B 16588
5 MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 9-6-2018 a2019q2ex10c.htm EX-10.C 63307
6 MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 12-20-2018 a2019q2ex10d.htm EX-10.D 11837
7 MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 3-22-2019 a2019q2ex10e.htm EX-10.E 47743
8 MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2019q2ex31a.htm EX-31.A 9817
9 MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER a2019q2ex31b.htm EX-31.B 9248
10 MDU RESOURCES CERTIFICATION OF CEO AND CFO a2019q2ex32.htm EX-32 6874
11 MDU RESOURCES MINE SAFETY DISCLOSURES a2019q2ex95.htm EX-95 102495
  Complete submission text file 0000067716-19-000060.txt   15485715

Data Files

Seq Description Document Type Size
12 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20190630.xsd EX-101.SCH 66752
13 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20190630_cal.xml EX-101.CAL 113635
14 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20190630_def.xml EX-101.DEF 459404
15 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20190630_lab.xml EX-101.LAB 920593
16 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20190630_pre.xml EX-101.PRE 575977
17 EXTRACTED XBRL INSTANCE DOCUMENT a2019q2form10-q_htm.xml XML 3532390
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1000
MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)

IRS No.: 301133956 | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-03480 | Film No.: 19994585
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)