The petro is some form of crypto-barter: Expert

$ | Dollar Symbol (Meaning, How To Type on Keyboard, & More) - Symbol Hippo

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RBC and Petro-Canada team up to offer 1 year of free EV charging

Petro-Canada Launched Coast-To-Coast Fast Charging Network

Canada's Electric Highway – EV Fast Charge car charging stations

More questions than answers about Venezuelan petro: Cryptocurrency expert

Venezuela's Petro Isn't Oil-Backed. It's Not Even a Cryptocurrency (Opinion)