China National Petroleum Corporation, or CNPC, does not specifically promote a loyalty rewards program for fuel purchases across its network of gas stations. However, some of the company’s subsidiaries, such as PetroChina, may offer various promotions or loyalty programs at certain locations, which could include discounts or rewards for frequent customers. It is important for customers to check with their local gas stations or on the company’s official website for information on any current offers that may be available. Promotions can vary by region and are subject to change, so keeping an eye on the latest updates on the official PetroChina or CNPC site is advisable. This will provide the most accurate information regarding any loyalty rewards or offers that may currently exist.