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Filing Detail
Form 11-K - Annual report of employee stock purchase, savings and similar plans:
SEC Accession No. 0000067716-21-000037
Filing Date
2021-06-22
Accepted
2021-06-22 09:34:37
Documents
2
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 11-K a2020form11-k.htm 11-K 215048
2 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM a2020form11-kex23.htm EX-23 2156
  Complete submission text file 0000067716-21-000037.txt   218285
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)

IRS No.: 301133956 | Fiscal Year End: 1231
Type: 11-K | Act: 34 | File No.: 001-03480 | Film No.: 211033237
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)