Sam my local experience mirrors yours for heavy duty work rigs. All the power companies, oilfield companies, and probably over half of the feed wagons are 250 and 350 Fords.
The power company I work for has a pile of Fords with service beds and 6.2 gas engines. That’s what I bought because I saw how well they hold up and go off-road. Since 2011 they have cycled through hundreds of trucks and the major issues have been 2 transfer cases and one transmission, not a single engine related hiccup according to the chief mechanic. They change oil and filters at 5k intervals and the guys idle them for entire shifts and pound on them off the roads in line cuts and two tracks every day.
They bought two Rams a few years ago as a test to see how they’d hold up since they were a little cheaper at fleet prices. Stuck them both in the auction at less than 70k miles because they were constantly in the shop.
