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)