Kearl is union. This happened in2013/2014 during the boom. Like I said it can easily be googled. Next my daughter can work wherever she damn well feels. Could she cut it in a rig, doubtful.  We're referred to as rig pigs because we take shit from no one and love to dish it out. We make loads of cash while yuppies sit in universities hoping to make a life out of a liberal arts or philosophy degree. I had my house and truck both paid off by the time they graduated. Also I can quickly look up
Yearly unemployment figures. I've yet to see Alberta with a zero percent unemployment. Don't say essentially zero because that's simply a lie. Because I figure your not bright enough to google search here you go. 
https://www.google.ca/amp/business.financialpost.com/news/energy/oil-sands-workers-foreigners-imperial-2014/amp
http://economicdashboard.alberta.ca/Unemployment