Petro-king Oilfield Services Limited is an investment holding company that provides oilfield technology services in the People's Republic of China, the Middle East, and internationally. It operates through two segments: Oilfield Project Tools and Services, and Consultancy Services. The company offers oilfield project tools and services such as development plans, procurement advice, equipment installation, and on-site project management, as well as assembles and sells oilfield tools. It also provides integrated project management, supervisory services, and trades oilfield tools and equipment. Formerly Termbray Petro-king Oilfield Services Limited, it changed its name in May 2014, was founded in 2002, and is headquartered in Shenzhen, the People's Republic of China.