In a world where the USA holds the global currency, and then uses that as a weapon against countries it deems to be 'improper', we may be seeing some change.
The US grip on the Petro, maybe as tenuous as it's grip on the e-Rubble or even Iran's new e-money
Venezuela has oil, and they backed a currency with 1 barrel = 1 coin.
They were forced into this position due to massive inflation caused by the banking cartel.
Hopefully the bill before the US congress to end the fed, is real and gets approved, then the world might improve also.
https://www.coindesk.com/venezuela-us-sanctions-petro-world-trade-organization