In a huge move Russia has announced it is in the final stages of introducing a Petro Coin.
Partially to bypass US sanctions, which have been applied to several countries around the world.
How this will impact Opec and other oil producers is unknown, but with Iran releasing a Gold backed crypto coin recently, the whole industry looks set for a shake up.
What will the USA do if they no longer control the petro dollar globally?
Time will tell
https://www.ccn.com/russia-regulate-cryptop-with-a-keen-eye-on-oil-backed-digital-currency