Form 8-K - Current report:
SEC Accession No. 0000067716-20-000030
Filing Date
2020-05-13
Accepted
2020-05-13 13:03:44
Documents
14
Period of Report
2020-05-12
Items
Item 5.07: Submission of Matters to a Vote of Security Holders

Document Format Files

Seq Description Document Type Size
1 8-K a20208-kstockholdersvo.htm   iXBRL 8-K 66031
  Complete submission text file 0000067716-20-000030.txt   237198

Data Files

Seq Description Document Type Size
2 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20200512.xsd EX-101.SCH 4424
3 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20200512_cal.xml EX-101.CAL 609
4 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20200512_def.xml EX-101.DEF 14527
5 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20200512_lab.xml EX-101.LAB 31386
6 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20200512_pre.xml EX-101.PRE 16430
7 EXTRACTED XBRL INSTANCE DOCUMENT a20208-kstockholdersvo_htm.xml XML 4467
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: 8-K | Act: 34 | File No.: 001-03480 | Film No.: 20872165
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)