When one refers to USD as 'Petrodollar' and goes on to state flatly 'USD will transition out of being the world's reserve currency' (Thereby precluding the US from printing money at current or projected rates thereby being the engine of the entire world's economy) One is saying those nations currently using 'Petro Dollars' like OPEC member Ecuador or Canal owner Panama as their ONLY currency have no say in this matter.Other nations using USD as currency include; East Timor, El Salvador, British Virgin Islands.
A painful fact for some, oil and more to the point gas production in the US growing rapidly.
Wikipedia has some interesting facts for those concerned.
http://en.wikipedia.org/wiki/Internatio ... _US_dollarNote also China's currency, the renminbi is pegged to the dollar as are dozens of other currencies.
Most importantly, there is no basket of currencies, or single currency big enough to handle trade in petroleum, much less gold, even jet fuel.