Back in the early 80’s I had a professor at a oil/mining engineering school talk about limitless oil. He made sense to me. Others (and most of the other profs) thought he was a crackpot. I think he was just way ahead of his time. Like most “crackpots”. I can’t recall if he was the same guy that said it was distributed in some sort of geometry? Like fractals I’m thinking - but I think the idea of fractals came later? (Nope - just googled it, fractals were “discovered” in 1975)
It’s limitless I’m sure. The thing to do would be to research how fast it comes around again, and better burning engines.