# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000067716-23-000017
Filing Date
2023-02-24
Accepted
2023-02-24 15:17:34
Documents
186
Period of Report
2022-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | MDU RESOURCES 2022 FORM 10-K | mdu-20221231.htm iXBRL | 10-K | 5874904
2 | MDU RESOURCES WBI AMENDED AND RESTATED CREDIT AGREEMENT 12-22-2022 | a2023ex4h.htm | EX-4.H | 453116
3 | MDU RESOURCES RESTRICTIVE STOCK UNIT AWARD AGREEMENT | a2022ex10m.htm | EX-10.M | 37678
4 | MDU RESOURCES SECTION 16 OFFICERS AND DIRECTORS | a2023ex10p.htm | EX-10.P | 24359
5 | MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 12-28-22 | a2023ex10w.htm | EX-10.W | 5338
6 | THIEDE RETENTION AGREEMENT | a2022ex10aa.htm | EX-10.AA | 44343
7 | BARNEY OFFER LETTER | a2022ex10ab.htm | EX-10.AB | 9562
8 | MDU RESOURCES SUBSIDIARIES OF MDU RESOURCES | a2022ex21.htm | EX-21 | 50977
9 | MDU RESOURCES CONSENT OF INDEPENDENT ACCOUNTING FIRM | a2022ex23.htm | EX-23 | 2269
10 | MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER | a2022ex31a.htm | EX-31.A | 8635
11 | MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER | a2022ex31b.htm | EX-31.B | 8614
12 | MDU RESOURCES CERTIFICATION OF CEO AND CFO | a2022ex32.htm | EX-32 | 5798
13 | MDU RESOURCES MINE SAFETY DISCLOSURES | a2022ex95.htm | EX-95 | 167786
19 |  | mdu-20221231_g1.jpg | GRAPHIC | 331618
20 |  | mdu-20221231_g10.jpg | GRAPHIC | 676604
21 |  | mdu-20221231_g11.jpg | GRAPHIC | 728730
22 |  | mdu-20221231_g12.jpg | GRAPHIC | 1053973
23 |  | mdu-20221231_g2.jpg | GRAPHIC | 441986
24 |  | mdu-20221231_g3.jpg | GRAPHIC | 594202
25 |  | mdu-20221231_g4.jpg | GRAPHIC | 419799
26 |  | mdu-20221231_g5.jpg | GRAPHIC | 341144
27 |  | mdu-20221231_g6.jpg | GRAPHIC | 138384
28 |  | mdu-20221231_g7.jpg | GRAPHIC | 524955
29 |  | mdu-20221231_g8.jpg | GRAPHIC | 574187
30 |  | mdu-20221231_g9.jpg | GRAPHIC | 576051
| Complete submission text file | 0000067716-23-000017.txt |  | 41578543

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
14 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | mdu-20221231.xsd | EX-101.SCH | 119337
15 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | mdu-20221231_cal.xml | EX-101.CAL | 95813
16 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | mdu-20221231_def.xml | EX-101.DEF | 962363
17 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | mdu-20221231_lab.xml | EX-101.LAB | 1445281
18 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | mdu-20221231_pre.xml | EX-101.PRE | 1154244
180 | EXTRACTED XBRL INSTANCE DOCUMENT | mdu-20221231_htm.xml | XML | 5403297

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.: 23666320
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)