It's a big mistake! There is an oilfield hauling operation who keeps cutting rates and not informing the drivers. Drivers, for whatever reason, are not keeping an eye on their settlements (so they don't catch on and keep working for peanuts).
I guess when you are use to making X and then the oilfield takes a hit, and you make less you begin to accept less and less as normal. It's not. Fuel prices are going higher. The cost of maintaining equipment isn't any lower than before. So your business still costs the same to run and why should your labor go for peanuts?
Anyway, I suggest you keep an eye out on your pay statements. I will not be disclosing WHO got caught but they did admit it to me the rates were cut. They said they told all the drivers but when I checked with driver after driver after driver, none had been informed of the cut in rates (the 4th one this year).
Be safe out there!