When I was a few years younger than you and was looking for something to do, I asked myself what I wanted and what I would put up with. I was willing to work hard and be away from home a lot and I wanted big money and lots of time off. I found the Diamond Drills (surface exploration mining) it had travel, lots of money, well in Canada it does, and lots of time off, the money isn't really so big when you consider the hours worked but I always made 2-3 even 4 times what some of my buddies made,look at the price of gold now, oil too, you can't find a DD who isn't working or turning work down for the last 10 years, well 35 years later and 21 different countries I can say its been perfect for me, there is also little reflection on seniority, the best keep working when it gets slow, your reputation counts more than your years of service. I don't know much about the oil rigs but from your location it might be something to look at.
I knew I was never going to be a suit and tie guy and I wanted to work outside, ask yourself the same questions I did and you can eliminate a lot of jobs that maybe in your area. The trades are a good thing to get into also.
Scott