OLSON JOHN L
Related Filers (1)
Ownership (8)
4
Wednesday, 5/20/2009
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 5/16/2008
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 4/29/2008
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/15/2007
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/1/2007
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 5/1/2006
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/3/2005
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 5/6/2004
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities