That, and the unfathomable sovereign wealth courtesy of nature's generous bequest of oil.
Some of the funds profit can be used to prop up the state budget, but it's regulated so as to not over heat the economy.
The industry is currently seeing the writing on the wall, though, and is trying to reinvent itself in a greener hue - for instance, my employer, who's been developing handling systems for ROVs and various seismic exploration equipment are now going all in on motion compensated walkways intended to bring crew and equipment out to offshore wind turbines.
Anyway, once petrodollars dwindle, we are reasonably well positioned to handle the transition. These are exciting times for engineers!