I made the bulk of my salary in Oil. Started out offshore some countries that made the "s**thole" list decreed by the GodEmperortm. Note: I do not agree with his classification scheme.
It was right after the recession, pay was crap to begin with but rose quite a bit by the time I left field behind for an office job.
To put it to scale in a very convoluted manner: At the time, an oilman's salary was a few multiples of the country's personal median income, my offshore compensation was a few multiple of an oilman's salary.
12-16 hour days, 6 weeks rotations, extremely unreliable internet, sharing a room with people. Extreme heat/humidity, loud noises at all times except in sleeping quarters (sometimes even in sleeping quarters), class 4 swell and sea state every other day with occasional class 6.
I left for an office job after about a year and took a ~70% pay cut (ie, I was making an average oilman's salary). Luckily, oil went to 100 and stayed there for multiple years. By 2014, a new hire with MSc was making around 90k, and bonuses were quite generous. I was involved with some bigger projects and my bonus was almost 100% of my salary.
Same story with wife, she started her last job with over 80k in salary (bonus extra) back in 2010, by 2014 she was making close to what I was making when I was offshore. It was a crazy time and it did not last, but could come back, who knows.
Our office job? We looked at computer screens to identify prospects to drill for oil (not unlike technical analysis using charts), but most days we just pressed buttons to make pretty displays (seismic).