China is #4 to #6 (depend on the year) in oil production in the world. US, Saudi Arabia and Russia are all typically around the same at 1-3 with roughly 11-12 million barrels per day with China around 1/3 of that. If all the oil goes through just the Chinese state owned company and if they are also involved in other oil assets in other countries, I can see them high up on this list. But I'm surprised they have TWO ahead of Saudi Arabia.