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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-15-000089
Filing Date
2015-08-04
Accepted
2015-08-04 10:56:59
Documents
15
Period of Report
2015-06-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES JUNE 2015 FORM 10-Q a2015q2form10-q.htm 10-Q 1856415
2 MDU RESOURCES 401(K) AMENDMENT 6-30-2015 a2015q2ex10a.htm EX-10.A 20989
3 WAIVER AND VOLUNTARY RELEASE a2015q2ex10b.htm EX-10.B 31475
4 MDU RESOURCES SECTION 16 OFFICERS AND DIRECTORS a2015q2ex10c.htm EX-10.C 33504
5 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES a2015q2ex12.htm EX-12 36587
6 CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2015q2ex31a.htm EX-31.A 9790
7 CERTIFICATION OF CHIEF FINANCIAL OFFICER a2015q2ex31b.htm EX-31.B 9213
8 CERTIFICATION CEO AND CFO EX 32 a2015q2ex32.htm EX-32 6426
9 MINE SAFETY DISCLOSURES a2015q2ex95.htm EX-95 84081
  Complete submission text file 0000067716-15-000089.txt   10385315

Data Files

Seq Description Document Type Size
10 XBRL INSTANCE DOCUMENT mdu-20150630.xml EX-101.INS 2614455
11 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20150630.xsd EX-101.SCH 63422
12 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20150630_cal.xml EX-101.CAL 122981
13 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20150630_def.xml EX-101.DEF 365393
14 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20150630_lab.xml EX-101.LAB 854124
15 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20150630_pre.xml EX-101.PRE 458051
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.: 151024440
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)