Prior to Brian Mulroney and NAFTA, Alberta did not need to send basically all of its oil to the US for refinement. Vancouver used to have five refineries, all but one were shuttered thanks to him and NAFTA. The one that remains is the smallest of the set.
Its why the original transmountain pipeline was built to handle multiple products in both directions
Not true.
Prior to Brian Mulroney and NAFTA, Alberta did not need to send basically all of its oil to the US for refinement. Vancouver used to have five refineries, all but one were shuttered thanks to him and NAFTA. The one that remains is the smallest of the set.
Its why the original transmountain pipeline was built to handle multiple products in both directions