Crude Oil for Gold ?

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Read following article by Anglo Far East's AFE Director Simon Heapes:  
The biggest exchange for oil in the glo bal world on mass is via the world's reserve currency, which is the US Dollar. 
If sanctions are placed on an oil-producing nation's ability to sell its oil, that nation will attempt to exchange its oil for an alternative, probably gold! This would have negative ramifications on the value of the US Dollar, because of less demand for USDs, and it would have a positive effect on the value of gold because of greater demand. 
Those readers who recall the media reports back in the 1990s before the USA attacked Iraq might remember that Saddam Hussein was attempting to exchange Iraq's oil, which produced 40% of the Middle East's oil at the time, for a 50/50 split between Euro and Gold. 
Could it be said that when this began (regarding the USA), war was imminent? They say history doesn't repeat exactly, but it sure does play a similar tune! 

The old saying, “Black Markets are Free Markets that exist in times when the government does not approve of the Free Market,” may again be proving true. These events illustrat e how gold actually is the money of last resort, even at a government level. Recent sanctions include EU's accepting no further contracts and freezes by the US, IMF and EU of Iran’s ability to trade in gold. The element to note is that this is incredibly difficult to enforce.

Gold has been smuggled across borders for centuries as payment for strategically important items, securing armies, arms, and for serving as bedrocks of monetary systems. Gold continues to resurface as money throughout history. You can transfer large quantities of capital completely outside the control of governments’ ability to stop it.

Sophisticated investors have learned that gold is therefore the ultimate form of wealth protection, because it is the only form of wealth that isn’t controllable.