WITHROW MARK L
Related Filers (1)
Ownership (11)
4
Monday, 3/7/2005
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Monday, 2/28/2005
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/23/2005
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Thursday, 1/27/2005
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Monday, 1/24/2005
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Monday, 3/8/2004
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/17/2004
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Friday, 12/19/2003
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Monday, 12/1/2003
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Thursday, 11/13/2003
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 8/20/2003
PIONEER NATURAL RESOURCES CO: Statement of changes in beneficial ownership of securities