Got it. Thanks for the info.
Interestingly Canada has the world's third largest proven petroleum reserve.
Be careful batting around the word "reserve".
Most of the time this refers to 'proved' reserves, and that means there is a commercial test implicit to ascertain if the oil that can be produced from the ground is not only technically feasible, but economically so.
When it comes to the oil in Canada, the oil is of such poor quality and has such high extraction costs, that it is very likely right now that a lot of what was considered 'proved' is no longer so.
A lot of times, the "reserve" is not proved, but in some riskier category called unproved.
There is a lot more unproved oil out there than proved.
Bottomline is that Canada has a whole lot of reserves, but most are in the unproved category.