# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000067716-20-000010
Filing Date
2020-02-21
Accepted
2020-02-21 09:56:31
Documents
171
Period of Report
2019-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | a2019form10-k.htm iXBRL | 10-K | 6061047
2 | MDU RESOURCES CEHI FIFTH AMENDED AND RESTATED CREDIT AGREEMENT 12-19-2019 | a2019ex4c.htm | EX-4.C | 871800
3 | MDU RESOURCES MDU AMENDED AND RESTATED CREDIT AGREEMENT 12-19-2019 | a2019ex4d.htm | EX-4.D | 810398
4 | MDU RESOURCES DESCRIPTION OF SECURITIES | a2019ex4g.htm | EX-4.G | 26090
5 | MDU RESOURCES EXECUTIVE INCENTIVE COMPENSATION PLAN AMENDED 11-13-2019 | a2019ex10g.htm | EX-10.G | 76111
6 | MDU RESOURCES LONG-TERM PERFORMANCE INCENTIVE PLAN | a2019ex10k.htm | EX-10.K | 71226
7 | MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 10-15-2019 | a2019ex10y.htm | EX-10.Y | 11794
8 | MDU RESOURCES SUBSIDIARIES OF MDU RESOURCES | a2019ex21.htm | EX-21 | 62249
9 | MDU RESOURCES CONSENT OF INDEPENDENT ACCOUNTING FIRM | a2019ex23.htm | EX-23 | 2799
10 | MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER | a2019ex31a.htm | EX-31.A | 10459
11 | MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER | a2019ex31b.htm | EX-31.B | 10449
12 | MDU RESOURCES CERTIFICATION OF CEO AND CFO | a2019ex32.htm | EX-32 | 6955
13 | MDU RESOURCES MINE SAFETY DISCLOSURES | a2019ex95.htm | EX-95 | 238838
| Complete submission text file | 0000067716-20-000010.txt |  | 28982977

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
14 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | mdu-20191231.xsd | EX-101.SCH | 118830
15 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | mdu-20191231_cal.xml | EX-101.CAL | 155933
16 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | mdu-20191231_def.xml | EX-101.DEF | 988266
17 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | mdu-20191231_lab.xml | EX-101.LAB | 1730907
18 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | mdu-20191231_pre.xml | EX-101.PRE | 1185976
130 | EXTRACTED XBRL INSTANCE DOCUMENT | a2019form10-k_htm.xml | XML | 5937379

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)

EIN.: 301133956 | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-03480 | Film No.: 20637656
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)