From Bloomberg Markets and Finance.

Since the 1970s, buying crude oil meant buying US dollars first— but China’s petroyuan isn’t a theory anymore. Is the 50-year petrodollar system under pressure? Presented by @cmegroup  

https://www.cmegroup.com/openmarkets/quicktake-by-bloomberg.html?utm_source=youtube&utm_medium=paid_social&utm_campaign=quicktake_evergreen&utm_content=more_insight