Form 424B3 - Prospectus [Rule 424(b)(3)]:
SEC Accession No. 0000898080-04-000222
Filing Date
2004-04-14
Accepted
2004-04-14 17:04:36
Documents
1

Document Format Files

Seq Description Document Type Size
1 SUPPLEMENT TO PROSPECTUS form424b3.txt 424B3 3767
  Complete submission text file 0000898080-04-000222.txt   5354
Mailing Address 918 EAST DIVIDE AVENUE BISMARCK ND 58506-5650
Business Address 918 EAST DIVIDE AVENUE BISMARCK ND 58506-5650 7012227900
MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)

EIN.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 424B3 | Act: 33 | File No.: 333-06127 | Film No.: 04733716
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)