Oil and Gas Field Services, NEC (5,161)
Building Oil and Gas Well Foundations On Site (30)
Construction, Repair, and Dismantling Services (200)
Derrick Building, Repairing, and Dismantling (3)
Detection and Analysis Service, Gas (25)
Fire Fighting, Oil and Gas Field (10)
Fishing for Tools, Oil and Gas Field (7)
Gas Compressing (Natural Gas) At the Fields (14)
Hydraulic Fracturing Wells (4)
Impounding and Storing Salt Water, Oil and Gas Field (8)
Lease Tanks, Oil Field: Erecting, Cleaning, and Repairing (52)
Measurement of Well Flow Rates, Oil and Gas (22)
Mud Service, Oil Field Drilling (15)
Oil Field Equipment-Repair (573)
Oil Sampling Service for Oil Companies (16)
Oil and Gas Field Services, Nec, Nec (1)
Pipe Testing, Oil Field Service (78)
Pumping of Oil and Gas Wells (22)
Removal of Condensate Gasoline From Field (Gathering) Lines (18)
Running, Cutting, and Pulling Casings, Tubes and Rods (12)
Servicing Oil and Gas Wells (323)