"in Canada — subsidies which, funnily enough, are about equal to all the wages paid to Alberta oil workers "

Pathetic. I am astounded by the amount of ignorance and outright lies in this post.

Canada provides about 3.3 Billion in oil and gas subsidies. Only about 1.6 billion are federal and the remaining 1.7 billion are provincial. The subsidies are used to promote exploration and value added services (refining and upgrading in Canada).

There were 155,000 people employed in mining and oil and gas in Alberta alone in 2015.
Average wage was $41 per hr which is approximately $85k per year.

155,000 x 85,000 = $13.175 BILLION