Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001127602-11-030370
Filing Date
2011-11-22
Accepted
2011-11-22 15:00:08
Documents
1
Period of Report
2011-11-21

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT form4.html 4  
1 PRIMARY DOCUMENT form4.xml 4 2772
  Complete submission text file 0001127602-11-030370.txt   4207
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 (Issuer) CIK: 0000067716 (see all company filings)

EIN.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)

Mailing Address P.O. BOX 5-C LAFAYETTE LA 70505
Business Address
Knudson Thomas C (Reporting) CIK: 0001293755 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-03480 | Film No.: 111221678