Oil and Gas Field Services, NEC
Bailing, Cleaning, Swabbing, and Treating of Wells
Building Oil and Gas Well Foundations On Site
Construction, Repair, and Dismantling Services
Derrick Building, Repairing, and Dismantling
Detection and Analysis Service, Gas
Excavating Slush Pits and Cellars
Fire Fighting, Oil and Gas Field
Fishing for Tools, Oil and Gas Field
Gas Compressing (Natural Gas) At the Fields
Grading Oil and Gas Well Foundations
Lease Tanks, Oil Field: Erecting, Cleaning, and Repairing
Measurement of Well Flow Rates, Oil and Gas
Mud Service, Oil Field Drilling
Oil Sampling Service for Oil Companies
Pipe Testing, Oil Field Service
Removal of Condensate Gasoline From Field (Gathering) Lines
Running, Cutting, and Pulling Casings, Tubes and Rods