# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-20-000027
Filing Date
2020-05-08
Accepted
2020-05-08 08:53:53
Documents
103
Period of Report
2020-03-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | MDU RESOURCES FORM 10-Q 3-31-2020 | a2020q1form10-q.htm iXBRL | 10-Q | 2275522
2 | MDU RESOURCES 401 K RETIREMENT PLAN RESTATED 4-1-2020 | a2020q1ex10a.htm | EX-10.A | 610369
3 | MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER | a2020q1ex31a.htm | EX-31.A | 9825
4 | MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER | a2020q1ex31b.htm | EX-31.B | 9256
5 | MDU RESOURCES CERTIFICATION OF CEO AND CFO | a2020q1ex32.htm | EX-32 | 6882
6 | MDU RESOURCES MINE SAFETY DISCLOSURES | a2020q1ex95.htm | EX-95 | 93211
| Complete submission text file | 0000067716-20-000027.txt |  | 11678721

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
7 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | mdu-20200331.xsd | EX-101.SCH | 55587
8 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | mdu-20200331_cal.xml | EX-101.CAL | 93618
9 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | mdu-20200331_def.xml | EX-101.DEF | 392852
10 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | mdu-20200331_lab.xml | EX-101.LAB | 805334
11 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | mdu-20200331_pre.xml | EX-101.PRE | 489735
38 | EXTRACTED XBRL INSTANCE DOCUMENT | a2020q1form10-q_htm.xml | XML | 2427427

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.: 20858903
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)