Look a the pie chart "crude oil supplies to Quebec" and look at how small the "Other" in the pie chart is. There's Kenney & Scheer's "saudi tankers."
My overall point is that almost every Albertan I've spoken to doesn't even know about Line 9, and politicians and media there keep repeating points about Quebec and Saudi Oil and Saudi tankers, and being denied access to markets. This doesn't accord with reality: oil from Alberta is already distributing across the country. Oil from Saudi Arabia is only a minor part of the mix in Quebec and almost none in Ontario.
Also worth pointing out that as a % of GDP and as % of exports manufacturing still tops oil and gas and mining. So the claims that "Alberta is holding up the economy of the country" sound pretty unsound and shrill.
In fact, when Alberta is doing really well because of high oil prices, the manufacturing centres suffer due to a high dollar.
Oil prices are not high. Today WTI is at $54 and Alberta oil (which is also Canada's oil) is selling at $12 cheaper (21%) because of transportation issues... that's then on top of that we pay an addition cost for refined products! $12 is per barrel... and we import 592 million barrels PER DAY according to the website you linked.
EDIT: you also said in a previous comment "and the world wide price of oil has been sagging for a half decade because of global macroeconomic forces"... but now you're saying oil is high? Ok, I'm really out of this discussion now, you're just making stuff up.
Stop throwing insults around and read.
By your own quoted numbers only 5% of Canadian crude comes from Saudi Arabia. (20% of 29.1 = 5.82 million barrels, 5.82 million barrels out of 108 million barrels is 5.3%)
The CBC article was 2012. Before Line 9 reversal. You may not want it to be true, but it is. And you actually just confirmed it.
And in fact most of that Saudi oil is going to eastern provinces, not central Canada:
https://www.cer-rec.gc.ca/nrg/ntgrtd/mrkt/snpsht/2019/03-03m...
Breaks down oil imports by source and province and -- this is the NEB, not a 'left wing' source -- its first sentence is: "Canada imports around one barrel of crude oil for every seven and a half barrels it produces."
Note that the rest of the page only breaks down imports and doesn't show domestic sources, which as I pointed out is 75% of consumed oil _nationally_ and 90% of Ontario's.