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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-18-000052
Filing Date
2018-08-03
Accepted
2018-08-03 09:05:27
Documents
100
Period of Report
2018-06-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q 06-30-2018 a2018q2form10-q.htm   iXBRL 10-Q 3025328
2 MDU RESOURCES CREDIT AGREEMENT DATED JUNE 8, 2018 a2018q2ex4a.htm EX-4.A 858396
3 MDU RESOURCES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES a2018q2ex12.htm EX-12 36849
4 MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2018q2ex31a.htm EX-31.A 9817
5 MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER a2018q2ex31b.htm EX-31.B 9248
6 MDU RESOURCES CERTIFICATION OF CEO AND CFO a2018q2ex32.htm EX-32 6470
7 MDU RESOURCES MINE SAFETY DISCLOSURES a2018q2ex95.htm EX-95 74111
  Complete submission text file 0000067716-18-000052.txt   14002165

Data Files

Seq Description Document Type Size
8 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20180630.xsd EX-101.SCH 62344
9 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20180630_cal.xml EX-101.CAL 115177
10 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20180630_def.xml EX-101.DEF 482235
11 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20180630_lab.xml EX-101.LAB 846320
12 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20180630_pre.xml EX-101.PRE 561005
13 EXTRACTED XBRL INSTANCE DOCUMENT a2018q2form10-q_htm.xml XML 2958185
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.: 18990481
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Assistant Director 9