
This chart from The Economist certainly suggests that, holding out the possibility that much of the recent oil boom is a kind of accounting mirage driven by the dollar free-fall. Or alternatively, the rising price of oil could be pushing the dollar down, since a depreciating dollar gives traders an incentive to horde dollar-denominated commodities.
For its part, The Economist blames the Fed, noting that lower US interest rates drive down interest rates world wide, stimulating consumption and fueling the oil boom. Which would be Exhibit Umpteen in the case that the empire unwittingly underwrites the revolution (and the mullahs as well.)
Either way, one suspects the Euro-Oil peg hits Iran harder than it hits Venezuela: they do most of their international trade in Euros, we do ours mostly in dollars. Still, it's worth bearing in mind: the barrels we sell earn more and more dollars, but the dollars we get buy less and less stuff.