I wanted to upvote you but you are already at 17. I wanted to say something similar. Yes, the earth pressure could work like a pressure chamber to crack lower hydrocarbons into ones of higher molecular weight, hence crude oil. Yeah there's a limited supply in that the earth itself is finite BUT it's a re-occurring supply - like the carbon cycle. Sure, there is only so many gazillion tons of carbon on earth but it keeps getting reused, etc etc. Same thing could be true with this carbon / petroleum cycle. The earth's gravity keeps making more of it.
I wanted to upvote you but you are already at 17. I wanted to say something similar. Yes, the earth pressure could work like a pressure chamber to crack lower hydrocarbons into ones of higher molecular weight, hence crude oil. Yeah there's a limited supply in that the earth itself is finite BUT it's a re-occurring supply - like the carbon cycle. Sure, there is only so many gazillion tons of carbon on earth but it keeps getting reused, etc etc. Same thing could be true with this carbon / petroleum cycle. The earth's gravity keeps making more of it.