Form DEF 14A - Other definitive proxy statements:
SEC Accession No. 0000067716-23-000035
Filing Date
2023-03-24
Accepted
2023-03-24 10:31:15
Documents
65

Document Format Files

Seq Description Document Type Size
1 DEF 14A mdu-20230323.htm   iXBRL DEF 14A 1996993
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  Complete submission text file 0000067716-23-000035.txt   28723129

Data Files

Seq Description Document Type Size
2 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20230323.xsd EX-101.SCH 5201
3 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20230323_def.xml EX-101.DEF 8319
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20230323_lab.xml EX-101.LAB 11919
5 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20230323_pre.xml EX-101.PRE 6893
59 EXTRACTED XBRL INSTANCE DOCUMENT mdu-20230323_htm.xml XML 128036
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: DEF 14A | Act: 34 | File No.: 001-03480 | Film No.: 23758322
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)