Antonoil, officially known as Anton Oilfield Services Group, is a prominent integrated oilfield service company based in Beijing, China. Founded in 1999, it became the first Chinese private oilfield service company listed on the Hong Kong Stock Exchange in 2007. Antonoil operates in over 30 countries and regions, including China, the Middle East, Africa, and North America, supported by a rapid-response global service system.

The company specializes in comprehensive oil and gas development solutions, focusing on increasing production efficiency and reducing costs. Antonoil offers a wide range of services, including oil production management, well drilling and completion, downhole operations, and specialized sand control technologies. With a strong commitment to research and development, Antonoil maintains multiple R&D centers and holds over 600 invention patents. The company serves a diverse clientele in both emerging and established markets, emphasizing collaboration and operational excellence to enhance the value of oil and gas assets.