There is a difference in oil quality between CNOOC and Sinopec. Mainly reflected in CNOOC's emphasis on the exploration and development of offshore oil and gas fields, Sinopec focuses on refining and sales. Sinopec is mainly located in the south of the Great Wall, and CNOOC is mainly engaged in offshore drilling.

CNOOC's offshore drilling ability is its unique skill. Only CNOOC can exploit the "combustible ice" in the South China Sea, even if it is placed in the world, few can do it. Sinopec's refined oil processing is unique, and the Chang 'e lunar probe uses Sinopec's lubricating oil. Sinopec mainly operates in the Middle East, North Africa, Arabian Peninsula and other regions overseas, while CNOOC mainly operates in Southeast Asia.

The background of PetroChina and Sinopec is the former Ministry of Petroleum Industry, so the domestic part is closer to the nature of the old state-owned enterprises; The old tradition of CNOOC is becoming less and less international.

China National Offshore Oil Corporation

In 2004, CNOOC made a unified plan for informatization construction, focusing on the implementation of ERP, and carried out informatization construction in upstream and downstream business, transactions, comprehensive management, infrastructure, organizational construction, and standard formulation.

CNOOC has the lowest price, mainly because it is a latecomer to the market. If the promotion is small, the sales volume will naturally not be good, and generally it will not be much lower. After all, there are procurement costs and labor costs. Generally, CNOOC will not open a gas station on the national highway. The gas station of CNOOC is China CNOOC, which is mainly distributed in coastal provinces.