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Oil and Gas Field Services, NEC
Construction, Repair, and Dismantling Services
Excavating Slush Pits and Cellars
Fire Fighting, Oil and Gas Field
Gas Compressing (Natural Gas) At the Fields
Impounding and Storing Salt Water, Oil and Gas Field
Measurement of Well Flow Rates, Oil and Gas
Mud Service, Oil Field Drilling
Oil Well Logging and Perforating
Removal of Condensate Gasoline From Field (Gathering) Lines
Running, Cutting, and Pulling Casings, Tubes and Rods