Form DEFR14A - Revised definitive proxy soliciting materials:
SEC Accession No. 0000067716-15-000040
Filing Date
2015-03-24
Accepted
2015-03-24 10:42:29
Documents
1
Effectiveness Date
2015-03-24

Document Format Files

Seq Description Document Type Size
1 DEFR14A mdu2015proxyamendment.htm DEFR14A 63540
  Complete submission text file 0000067716-15-000040.txt   64650
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1059
MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)

EIN.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFR14A | Act: 34 | File No.: 001-03480 | Film No.: 15720737
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)