Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001127602-13-016164
Filing Date
2013-05-08
Accepted
2013-05-08 17:24:00
Documents
1
Period of Report
2013-05-07

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT form4.html 4  
1 PRIMARY DOCUMENT form4.xml 4 4992
  Complete submission text file 0001127602-13-016164.txt   6430
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 5601 BISMARCK ND 58506-5601
Business Address
Bietz Steven L (Reporting) CIK: 0001355208 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-03480 | Film No.: 13825654