PetroVietnam Drilling & Well Services JSC engages in the provision of exploration services. It offers drilling, drilling-related, and other services. Drilling services includes oil tool rental services, and owns and operates offshore and onshore oil rigs. Drilling-related services provides total tubular management services; exports, distributes, and trades oil country tubular goods (OCTG) products; and mud logging, geology consultancy services, oil spill control, and OCTG management services. Others Services involves the provision of cementing and stimulation, well testing, directional drilling, and wire line logging services. The company was founded by Khanh Van Do on November 26, 2001 and is headquartered in Ho Chi Minh City, Vietnam.