Form 8-K - Current report:
SEC Accession No. 0000067716-11-000011
Filing Date
2011-02-03
Accepted
2011-02-02 20:59:54
Documents
2
Period of Report
2010-12-31
Items
Item 2.02: Results of Operations and Financial Condition
Item 7.01: Regulation FD Disclosure
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES GROUP, INC. FORM 8-K form8-k.htm 8-K 26380
2 EXHIBIT 99 exhibit99.htm EX-99 796561
  Complete submission text file 0000067716-11-000011.txt   824636
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)

EIN.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-03480 | Film No.: 11568290
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)