The petrodollar is the only thing propping up a bankrupt America and its currency.
Kissinger sucked up to the Saudis back in 71 to get them to sell their oil in dollars in return for weapons etc.
The rest I predict will all move to other currencies in the very near future, making the dollar no longer the primary reserve currency.
China has already started the ball rolling.
THE FREE RIDE IS COMING TO AN END AMERICA.