Nothing I would hang my hat on. It's a bit of a pissing contest between governments. I guess the KSA threat was selling US$ reserves. But then the impact of the Renminbi being added as reserve currency has impact too (on petrodollar US$ backing). So lower US$ leads to higher commodity prices ... but then US Fed is now signalling tightening of interest rates which should make US$ higher (and lower commodity price).
Who knows - all seems to work like an oversized agitator in a washing machine.
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