Why is China not rich in oil and natural gas?

China's oil and gas reserves are among the highest in the world.

There is no large-scale mining because

So far, the price of lottery tickets is much higher than that purchased from abroad.

At the same time, it is also a non-renewable resource and strategic material reserve.

So let's use someone else's first,

Subsequent mining, our own,

This is also a kind of protection for national security.