Form 4/A - Statement of changes in beneficial ownership of securities: [Amend]
SEC Accession No. 0000067716-14-000135
Filing Date
2014-12-29
Accepted
2014-12-29 15:56:55
Documents
1
Period of Report
2013-05-07

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT primary_doc.html 4/A  
1 PRIMARY DOCUMENT primary_doc.xml 4/A 2663
  Complete submission text file 0000067716-14-000135.txt   4114
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/A | Act: 34 | File No.: 001-03480 | Film No.: 141312658