The oil crisis has not only caused petrol prices to soar, it has revealed just how little competition there is among the big oil companies. A couple weeks ago the ACCC announced that it would be looking into uncompetitive behaviour by petrol companies in the rural areas.
The article shows how petrol price rises have been affected in different parts of Australia.
https://thepoint.com.au/news/260327-petrol-prices-are-soaring-in-sync-collusion-or-coincidence
What exactly have we “found out from this war” ?
Iran was stopped for all intents and purposes.
They have missiles capable of hitting targets significantly further away than previously thought, for one.