Last year we saw Venezuela develop and promote the petrol-backed Petro cryptocurrency. This was followed by Iran's gold-backed PayMon.
source https://www.google.com/url?rct=j&sa=t&url=https://www.cryptoground.com/a/russia-developing-oil-backed-national-cryptocurrency&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNEkfuDt7KGrdpFTxBPd9boT0vccHQ
