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
You don’t seem to have been paying much attention to Trump’s mode of operation.
If a half dozen middle powers laid the blame for this shit show at his feet that would absolutely exert influence over American foreign policy.