It is ironic how dependent on OPEC the US and Canadian economies have become.
In the seventies, OPEC ravaged North America's economies, leading to stagflation and a decade of unemployment and volatility.

Now our economy is dependent on oil, and oil is dependent on world price, and world price is dependent on OPEC, so in fact we have gone from hating OPEC to relying on it. Put simply, we have joined the cartel. Cartels are not illegal internationally, just at the national level, so Canada joins cartels when it can, for instance the global potash cartel, although that hasn't worked out all that well.

Now Trump is angering OPEC. They won't say he is, but Trump's proposed fire is a defection, and the sale will mean reduced revenues for Saudi. That could mean Saudi will have more difficulty paying for the $110USD arms deal that Trump just brokered between the Us military industrial complex, and the war-mongering despotic sheikdom. What could possibly go wrong in this scenario?