Parker Drilling Company (Parker Drilling) is a provider of contract drilling, and drilling-related services and rental tools. The Company owns and operates drilling rigs and drilling-related equipment and also performs drilling-related services, referred to as Operations & Maintenance (O&M) work, for customer-owned drilling rigs on a contracted basis. The Company's rental tools business supplies equipment to exploration and production (E&P) companies, drilling contractors and service companies on land and offshore in the United States and select international markets. The Company has five operating segments: Rental Tools, U.S. Barge Drilling, U.S. Drilling, International Drilling and Technical Services. Parker Drilling operates in approximately 23 countries.