Could the proposed Iranian oil bourse (IOB) become the catalyst for a significant blow to the influential position the US dollar enjoys? Manifold supply fears have driven the price of crude oil to its recent high of US$67.10 - only a notch below its highest price in inflation-adjusted dollar terms. With the world facing a daily bill of roughly $5.5 billion for crude oil at current price levels, it becomes apparent that sellers and purchasers of the black gold are looking into all ways that could lead to a financial improvement on their respective sides.
Non-US-dollar holders so far have been the victim of additional transaction costs in the oil trade. The necessary conversion of local currencies into oil-buying greenbacks can be considered a hidden tax, charged and enjoyed by the international banking sector. The IOB, by eliminating this transaction cost, will become a factor that could unsettle the dollar's dominant position. While the worldwide bottleneck of inadequate refining facilities and partly dramatic declines in production - for example in the North Sea - are two factors that cannot be eliminated in the short term, there is one area left which could result in smiling faces of oil producers as well as most buyers.
http://www.atimes.com/atimes/Global_Economy/GH26Dj01.html