Yeah, the whole damm state is oil,gas, or geo thermal! Im doing Geo work up by Ridgecrest for the last 1.5 years, 50 to 150 miles a day on the rough roads.
I bought a 06 LBZ out of Texas that probably spend it's whole life on a dirt road. 28k and it had the same problem. I think about 4 places. Found them because they would always squeek. Just took it apart and welded them up, painted it, and sold the truck.