I have a lot of relatives in Alberta. And it seems like the oil industry there is providing a lot of opportunity for people without college degrees to make a good living. But of course, that's just Alberta. I can't comment on the rest of the country.
Yes, but that's very hard work and quite a few of the people that moved to the territories to participate in the boom there already lost their shirt due to the prolonged drop in the price of oil. Alberta is a bit different because the extraction is easier.
You can make money in lumber, oil, mining, fishing and lots of other industries but it will not be 'easy' money by any definition, and if you get out without injury then you should consider yourself lucky. Long days, very hard work.
