We can always do a few steps back and start using fewer petrol. Walk, bicycle, use a hoarse, cow, dog carriage and don't use plastic and make clothes last longer.

In the 70s there was also an oil crisis.

More interesting is that always the same country starts wars out of greed. No way it is Out of regime change.

If you depend fewer on external resources and on what you have, you find solutions because you have to be creative.

With us 1 liter is 3 euros. I assume that as long as the governments don't start oil crisis/energy lockdowns and you still have food, you have nothing to worry about.