CNPC Chuanqing Drilling Engineering Company Limited (CCDC) is a subsidiary of the China National Petroleum Corporation (CNPC), the largest oil and gas producer in China. Established in February 2008, CCDC specializes in upstream oilfield services and engineering construction within the oil and gas sector.

The company provides a variety of services, including drilling, workover operations, downhole services, and the installation of production facilities. CCDC also offers technical services, engineering design, machinery manufacturing, and construction related to oil and gas extraction. With a significant international presence, CCDC operates in eight countries, including Afghanistan, Ecuador, and Kazakhstan, and employs between 1,000 and 5,000 people. The company is headquartered in Quito, Ecuador, and serves a diverse customer base in the upstream oil and gas industry.