SC 13G/A | SEC Filings Hub

Filing metadata

Accession number: 0001033244-12-000004
Form type: SC 13G
Filer: MDU RESOURCES GROUP INC
CIK: CIK 67716
Filed: Feb 14, 2012
Reporting period: —
Description: Passive 5%+ stake

Documents

0001033244-12-000004-index.htm

Complete submission

0001033244-12-000004.txt

directory listing

Filed by

MDU RESOURCES GROUP INC