""That Iranian isolation theme only gets weaker when one learns that the country is dumping the dollar in its trade with Russia for rials and rubles -- a similar move to ones already made in its trade with China and Japan. As for India, an economic powerhouse in the neighborhood, its leaders also refuse to stop buying Iranian oil, a trade that, in the long run, is similarly unlikely to be conducted in dollars. India is already using the yuan with China, as Russia and China have been trading in rubles and yuan for more than a year, as Japan and China are promoting direct trading in yen and yuan. As for Iran and China, all new trade and joint investments will be settled in yuan and rial.
Translation, if any was needed: in the near future, with the Europeans out of the mix, virtually none of Iran's oil will be traded in dollars...
...In this context, it's worth remembering that in September 2000 Saddam Hussein abandoned the petrodollar as the currency of payment for Iraq's oil, and moved to the euro. In March 2003, Iraq was invaded and the inevitable regime change occurred. Libya's Muammar Gaddafi proposed a gold dinar both as Africa's common currency and as the currency of payment for his country's energy resources. Another intervention and another regime change followed.""