ZINK JOHN S
Related Filers (2)
Ownership (16)
4
Friday, 5/7/2004
UNIT CORP: Statement of changes in beneficial ownership of securities
5
Wednesday, 1/7/2004
UNIT CORP: Annual statement of changes in beneficial ownership of securities
4
Tuesday, 2/25/2003
UNIT CORP: Statement of changes in beneficial ownership of securities
4
Monday, 2/24/2003
MATRIX SERVICE CO: Statement of changes in beneficial ownership of securities
4
Friday, 2/21/2003
MATRIX SERVICE CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/19/2003
MATRIX SERVICE CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/18/2003
MATRIX SERVICE CO: Statement of changes in beneficial ownership of securities
4
Friday, 2/14/2003
MATRIX SERVICE CO: Statement of changes in beneficial ownership of securities
5
Wednesday, 2/12/2003
UNIT CORP: Annual statement of changes in beneficial ownership of securities
4
Wednesday, 10/23/2002
MATRIX SERVICE CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 4/9/2002
UNIT CORP: Statement of changes in beneficial ownership of securities
5
Wednesday, 2/6/2002
UNIT CORP: Annual statement of changes in beneficial ownership of securities
5
Friday, 2/9/2001
UNIT CORP: Annual statement of changes in beneficial ownership of securities
5
Wednesday, 1/26/2000
UNIT CORP: Annual statement of changes in beneficial ownership of securities
5
Thursday, 1/7/1999
UNIT CORP: Annual statement of changes in beneficial ownership of securities
5
Friday, 1/30/1998
UNIT CORP: Annual statement of changes in beneficial ownership of securities