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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000067716-05-000074
Filing Date
2005-05-03
Accepted
2005-05-03 13:13:40
Documents
1
Period of Report
2005-04-29

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT doc.html 4  
1 PRIMARY DOCUMENT doc.xml 4 10472
  Complete submission text file 0000067716-05-000074.txt   12347
Mailing Address 918 EAST DIVIDE AVENUE BISMARCK ND 58506-5650
Business Address 918 EAST DIVIDE AVENUE BISMARCK ND 58506-5650 7012227900
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 BLUE ROCK PRODUCTS CO PO BOX 1708 SIDNEY MT 59270
Business Address
OLSON JOHN L (Reporting) CIK: 0001195492 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-03480 | Film No.: 05794012