Geothermal.contractors

Diamond Drilling LLC is the drilling division of Diamond Well Service, a locally owned Oklahoma company based in Lindsay. The company drills water wells for commercial and residential clients, monitoring and test wells, and geothermal wells for ground-source heat pump systems. All operations are performed throughout Oklahoma by a licensed team with a stated focus on safety and efficiency. Geothermal bores are drilled vertically to support closed-loop GSHP installations. Diamond Drilling LLC operates as a distinct entity under the Diamond Well Service family of companies, which also includes Diamond Well Service LLC (workover rigs, oil and gas maintenance) and Diamond Hydro Testing and Scanning LLC. The company serves customers Monday through Saturday. Verified active operator per https://www.diamondwellservice.com/services (Diamond Drilling LLC geothermal wells confirmed) (OK import 2026-06-01)