SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-22-000052
Filing Date
2022-08-05
Accepted
2022-08-05 09:51:52
Documents
102
Period of Report
2022-06-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q 06-30-2022 mdu-20220630.htm   iXBRL 10-Q 3492027
2 MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2022q2ex31a.htm EX-31.A 9314
3 MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER a2022q2ex31b.htm EX-31.B 8927
4 MDU RESOURCES CERTIFICATION OF CEO AND CFO a2022q2ex32.htm EX-32 5447
5 MDU RESOURCES MINE SAFETY DISCLOSURES a2022q2ex95.htm EX-95 144665
6 MDU RESOURCES DIRECTOR COMPENSATION PLAN 5-11-22 a2022ex10b.htm EX-10.B 21960
  Complete submission text file 0000067716-22-000052.txt   13798401

Data Files

Seq Description Document Type Size
7 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20220630.xsd EX-101.SCH 54931
8 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20220630_cal.xml EX-101.CAL 82092
9 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20220630_def.xml EX-101.DEF 395205
10 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20220630_lab.xml EX-101.LAB 754735
11 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20220630_pre.xml EX-101.PRE 501819
96 EXTRACTED XBRL INSTANCE DOCUMENT mdu-20220630_htm.xml XML 3224050
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)

IRS No.: 301133956 | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-03480 | Film No.: 221138958
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)