Form 8-K - Current report:
SEC Accession No. 0000067716-13-000109
Filing Date
2013-10-15
Accepted
2013-10-15 12:26:13
Documents
1
Period of Report
2013-09-05
Items
Item 1.04: Mine Safety - Reporting of Shutdowns and Patterns of Violations

Document Format Files

Seq Description Document Type Size
1 8-K form8-kxitem104.htm 8-K 22607
  Complete submission text file 0000067716-13-000109.txt   23800
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: 8-K | Act: 34 | File No.: 001-03480 | Film No.: 131151110
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)