Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000067716-18-000027
Filing Date
2018-03-23
Accepted
2018-03-23 10:22:33
Documents
3
Effectiveness Date
2018-03-23

Document Format Files

Seq Description Document Type Size
1 DEFA14A a2018proxynotice.htm DEFA14A 152896
2 image-mdurlogoa06.jpg GRAPHIC 43073
3 phone.jpg GRAPHIC 3793
  Complete submission text file 0000067716-18-000027.txt   217612
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: DEFA14A | Act: 34 | File No.: 001-03480 | Film No.: 18708730
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)