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Filing metadata

Accession number: 0001225208-20-015145
Form type: Form 4
Filer: MDU RESOURCES GROUP INC
CIK: CIK 67716
Filed: Dec 31, 2020
Reporting period: Dec 31, 2020
Description: Insider transaction

Documents

0001225208-20-015145-index.htm

Complete submission

0001225208-20-015145.txt

directory listing

Filed by

MDU RESOURCES GROUP INC