# Filing Detail

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)