I mean who says that gas prices will not 10x in the next 20 years ? Crude oil is a scarce resource and it has become very inefficient to extract. Which is why even fracking is nowadays viable (at $100/barrel)

If you believe that, buy some futures. I'll put my money in a savings account. Let's see who does better.

Supply of oil is artificially constrained but completely necessary for the QoL that we're used to.

Electricity prices for charging will much more than 10x to support a significant fraction of the population using EVs.

If you sell me the said futures I will happily buy because nobody else sells.

Hint to not go bankrupt before you decide to sell me, check the average current costs per barrel for the giants like xom and cvx. This is the price floor.

You can absolutely buy crude oil futures. Even as an individual investor.