EXHIBIT 4.1 PARKER DRILLING COMPANY and Subsidiary Guarantors 9 3/4% SENIOR NOTES DUE 2006 THIRD SUPPLEMENTAL INDENTURE Dated as of April 30, 2002 Supplementing the Indenture dated as of March 11, 1998Third Supplemental Indenture • May 15th, 2002 • Parker Drilling Co /De/ • Drilling oil & gas wells • New York
EXHIBIT 4.2 PARKER DRILLING COMPANY and Subsidiary Guarantors 9 3/4% SENIOR NOTES DUE 2006 FOURTH SUPPLEMENTAL INDENTURE Dated as of May 2, 2002 Supplementing the Indenture dated as of March 11, 1998Fourth Supplemental Indenture • May 15th, 2002 • Parker Drilling Co /De/ • Drilling oil & gas wells • New York
