Interesting comment, but don't forget, the amount of oil a country is allowed to export is linked to their oil reserves. Some would argue that many of the OPEC countries are grossly exaggerating their reserves so as they can export more and maintain the wealth status that they have become used to. If the reserve estimates were cut, so would the exports and more importantly, the revenue. Before you know it, you'd have A380 flying palaces being cancelled in favour of small business jets and no self respecting Sheikh wants that.