Price of Oil

The world price of oil is in the $45 to $47 per barrel range. But not if you are Saudi Arabia; for them it is only $31.50 to $32.90!
It seems to this observer that you have to take into account the devaluation of the U.S. dollar.  Most of what the Saudis' buy or spend abroad they do so in Euros. If the current oil price is $42.50;  for the Saudis the price is under $30.00!