Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-25-000042
Filing Date
2025-05-08
Accepted
2025-05-08 08:38:00
Documents
87
Period of Report
2025-03-31

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q mdu-20250331.htm   iXBRL 10-Q 1746049
2 CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2025q3ex31a.htm EX-31.A 9198
3 CERTIFICATION OF CHIEF FINANCIAL OFFICER a2025q1ex31b.htm EX-31.B 8786
4 CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER a2025q1ex32.htm EX-32 5337
  Complete submission text file 0000067716-25-000042.txt   9444522

Data Files

Seq Description Document Type Size
5 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20250331.xsd EX-101.SCH 51039
6 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20250331_cal.xml EX-101.CAL 111420
7 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20250331_def.xml EX-101.DEF 270619
8 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20250331_lab.xml EX-101.LAB 704224
9 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20250331_pre.xml EX-101.PRE 502098
90 EXTRACTED XBRL INSTANCE DOCUMENT mdu-20250331_htm.xml XML 1714207
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.: 25924088
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)
(CF Office: 01 Energy & Transportation)