PetroChina Company Limited is the largest Chinese oil company with a network of over 18,000 filling stations, making it one of the largest listed companies in the world.
As of February 2026 PetroChina has a market cap of โน26.340 Trillion. This makes PetroChina the world's 50th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.