Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-23-000096
Filing Date
2023-08-03
Accepted
2023-08-03 16:02:52
Documents
112
Period of Report
2023-06-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q 06-30-2023 mdu-20230630.htm   iXBRL 10-Q 2734794
2 MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2023q2ex31a.htm EX-31.A 9212
3 MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER a2023q2ex31b.htm EX-31.B 8836
4 MDU RESOURCES CERTIFICATION OF CEO AND CFO a2023q2ex32.htm EX-32 5356
5 MDU RESOURCES MINE SAFETY DISCLOSURES a2023q2ex95.htm EX-95 194725
  Complete submission text file 0000067716-23-000096.txt   13102548

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20230630.xsd EX-101.SCH 62727
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20230630_cal.xml EX-101.CAL 88348
8 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20230630_def.xml EX-101.DEF 458912
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20230630_lab.xml EX-101.LAB 915866
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20230630_pre.xml EX-101.PRE 621384
106 EXTRACTED XBRL INSTANCE DOCUMENT mdu-20230630_htm.xml XML 2467516
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-Q | Act: 34 | File No.: 001-03480 | Film No.: 231139769
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)