# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000067716-19-000019
Filing Date
2019-02-22
Accepted
2019-02-22 09:46:22
Documents
160
Period of Report
2018-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | MDU RESOURCES 2018 FORM 10-K | a2018form10-k.htm iXBRL | 10-K | 5914700
2 | MDU RESOURCES FIRST AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT | a2018ex4l.htm | EX-4.L | 105884
3 | MDU RESOURCES DIRECTOR COMPENSATION POLICY | a2018ex10b.htm | EX-10.B | 30929
4 | MDU RESOURCES LONG-TERM PERFORMANCE INCENTIVE PLAN | a2018ex10k.htm | EX-10.K | 71071
5 | MDU RESOURCES SUBSIDIARIES OF MDU RESOURCES | a2018ex21.htm | EX-21 | 64374
6 | MDU RESOURCES CONSENT OF INDEPENDENT ACCOUNTING FIRM | a2018ex23.htm | EX-23 | 2868
7 | MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER | a2018ex31a.htm | EX-31.A | 10447
8 | MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER | a2018ex31b.htm | EX-31.B | 10437
9 | MDU RESOURCES CERTIFICATION OF CEO AND CFO | a2018ex32.htm | EX-32 | 6943
10 | MDU RESOURCES MINE SAFETY DISCLOSURES | a2018ex95.htm | EX-95 | 168455
| Complete submission text file | 0000067716-19-000019.txt |  | 26329547

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
11 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | mdu-20181231.xsd | EX-101.SCH | 116454
12 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | mdu-20181231_cal.xml | EX-101.CAL | 169310
13 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | mdu-20181231_def.xml | EX-101.DEF | 1024395
14 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | mdu-20181231_lab.xml | EX-101.LAB | 1722004
15 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | mdu-20181231_pre.xml | EX-101.PRE | 1203180
16 | EXTRACTED XBRL INSTANCE DOCUMENT | a2018form10-k_htm.xml | XML | 5647782

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)

EIN.: 301133956 | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-03480 | Film No.: 19624152
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)