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Filing Detail
Form 11-K - Annual report of employee stock purchase, savings and similar plans:
SEC Accession No. 0000067716-10-000050
Filing Date
2010-06-17
Accepted
2010-06-17 09:49:03
Documents
1
Period of Report
2009-12-31

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES GROUP, INC. 2009 FORM 11-K mduform11-k.htm 11-K 349879
  Complete submission text file 0000067716-10-000050.txt   351416
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58506-5650
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58506-5650 701-530-1059
MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)

IRS No.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 11-K | Act: 34 | File No.: 001-03480 | Film No.: 10902137
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)