What is the relationship between China CNOOC and China CNOOC? Is it the company? Say with complete incomprehension

1) China Offshore Oil Corporation (CNOOC) is a state-owned enterprise led by SASAC. Like PetroChina and Sinopec, they are all national oil companies.

2) CNOOC is a joint-stock company listed in the United States and Hong Kong.

3) Relationship: China Offshore Oil Corporation (CNOOC) is the controlling shareholder of China Offshore Oil Corporation.