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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-19-000076
Filing Date
2019-11-01
Accepted
2019-11-01 10:43:43
Documents
118
Period of Report
2019-09-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q 9-30-2019 a2019q3form10-q.htm   iXBRL 10-Q 3470116
2 MDU RESOURCES MDU NPA 7-24-2019 a2019q3ex4a.htm EX-4.A 601940
3 MDU RESOURCES 401 K RETIREMENT PLAN 8-22-2019 a2019q3ex10a.htm EX-10.A 5448
4 MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2019q3ex31a.htm EX-31.A 9819
5 MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER a2019q3ex31b.htm EX-31.B 9250
6 MDU RESOURCES CERTIFICATION OF CEO AND CFO a2019q3ex32.htm EX-32 6880
7 MDU RESOURCES MINE SAFETY DISCLOSURES a2019q3ex95.htm EX-95 109387
  Complete submission text file 0000067716-19-000076.txt   16048660

Data Files

Seq Description Document Type Size
8 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20190930.xsd EX-101.SCH 68803
9 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20190930_cal.xml EX-101.CAL 114537
10 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20190930_def.xml EX-101.DEF 507644
11 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20190930_lab.xml EX-101.LAB 977240
12 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20190930_pre.xml EX-101.PRE 621736
58 EXTRACTED XBRL INSTANCE DOCUMENT a2019q3form10-q_htm.xml XML 3676524
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.: 191185585
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)