Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001127602-10-014584
Filing Date
2010-05-18
Accepted
2010-05-18 11:49:28
Documents
1
Period of Report
2010-05-17

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT form4.html 4  
1 PRIMARY DOCUMENT form4.xml 4 2788
  Complete submission text file 0001127602-10-014584.txt   4644
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 (Issuer) CIK: 0000067716 (see all company filings)

IRS No.: 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.: 10841584