ROWAN COMPANIES, INC. as the Company ROWAN COMPANIES PLC as Guarantor and as Trustee NINTH SUPPLEMENTAL INDENTURE Dated as of June 7, 2019 to INDENTURE Dated as of July 21, 2009Ninth Supplemental Indenture • June 11th, 2019 • Ensco Rowan PLC • Drilling oil & gas wells • New York
