Sinopec Oilfield Service Corporation (SSC), a subsidiary under Sinopec Group, is a large integrated petroleum engineering and technology service provider in China. With a history of over 60 years' excellent performance, it is one of the leading integrated oilfield service providers in China.

On June 28, 2012, Sinopec Oilfield Service Corporation was established after Sinopec Group integrated the petroleum engineering business of its 8 oilfields, who are Shengli Oilfield, Zhongyuan Oilfield, Jianghan Oilfield, Jiangsu Oilfield, Henan Oilfield, Huabei Oilfield, Xinan Oilfield and Huadong Oilfield, with Sinopec Petroleum Engineering Management Department, Sinopec International Petroleum Service Corporation and Sinopec Shanghai Offshore Petroleum Bureau. In 2014, it went public in Shanghai Stock Exchange (SH600871) and HKEx (HK1033).