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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000067716-16-000116
Filing Date
2016-02-19
Accepted
2016-02-19 09:33:32
Documents
161
Period of Report
2015-12-31

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES 2015 FORM 10-K a2015form10-k.htm 10-K 4374829
2 CENTENNIAL ENERGY HOLDINGS, INC. AMENDMENT #2 TO RESTATED MASTER SHELF AGREEMENT a2015ex4e.htm EX-4.E 100789
3 CENTENNIAL ENERGY HOLDINGS, INC. AMENDMENT #3 TO RESTATED MASTER SHELF AGREEMENT a2015ex4f.htm EX-4.F 26776
4 CENTENNIAL ENERGY HOLDINGS WAIVER 3RD AMENDED AND RESTATED CREDIT AGREEMENT a2015ex4k.htm EX-4.K 66133
5 MDU RESOURCES LONG-TERM PERFORMANCE INCENTIVE PLAN a2015ex10f.htm EX-10.F 86045
6 MDU RESOURCES SECTION 16 OFFICERS AND DIRECTORS a2015ex10n.htm EX-10.N 32639
7 MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT a2015ex10ap.htm EX-10.AP 78052
8 MDU RESOURCES - PATRICK L. O'BRYAN INCENTIVE OPPORTUNITY a2015ex10aw.htm EX-10.AW 1312
9 MDU RESOURCES DAVID C. BARNEY INCENTIVE AWARD OPPORTUNITY a2015ex10ax.htm EX-10.AX 36874
10 MDU RESOURCES FIXED CHARGES AND COMBINED FIXED CHARGES a2015ex12.htm EX-12 69611
11 MDU RESOURCES SUBSIDIARIES OF MDU RESOURCES a2015ex21.htm EX-21 50449
12 MDU RESOURCES CONSENT OF INDEPENDENT ACCOUNTING FIRM a2015ex23.htm EX-23 3022
13 MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2015ex31a.htm EX-31.A 10415
14 MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER a2015ex31b.htm EX-31.B 10397
15 MDU RESOURCES CERTIFICATION OF CEO AND CFO a2015ex32.htm EX-32 6893
16 MDU RESOURCES MINE SAFETY DISCLOSURES a2015ex95.htm EX-95 208098
23 image1a01.jpg GRAPHIC 41548
24 image2a01.jpg GRAPHIC 90856
  Complete submission text file 0000067716-16-000116.txt   24516973

Data Files

Seq Description Document Type Size
17 XBRL INSTANCE DOCUMENT mdu-20151231.xml EX-101.INS 6126699
18 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20151231.xsd EX-101.SCH 128353
19 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20151231_cal.xml EX-101.CAL 203132
20 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20151231_def.xml EX-101.DEF 832890
21 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20151231_lab.xml EX-101.LAB 1780395
22 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20151231_pre.xml EX-101.PRE 1098524
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-K | Act: 34 | File No.: 001-03480 | Film No.: 161440371
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)