| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 213112 | 213112 | 213112 | Acidizing oil and gas field wells on a contract basis | |||
| 213112 | 213112 | 213112 | Building oil and gas well foundations on a contract basis | |||
| 213112 | 213112 | 213112 | Building, erecting, repairing, and dismantling oil and gas field rigs and derricks on a contract basis | |||
| 213112 | 213112 | 213112 | Cementing oil and gas well casings on a contract basis | |||
| 213112 | 213112 | 213112 | Chemically treating oil and gas wells (e.g., acidizing, bailing, swabbing) on a contract basis | |||
| 213112 | 213112 | 213112 | Cleaning oil and gas field lease tanks on a contract basis | |||
| 213112 | 213112 | 213112 | Cleaning out (e.g., bailing out, steam cleaning, swabbing) wells on a contract basis | |||
| 213112 | 213112 | 213112 | Cleaning wells on a contract basis | |||
| 213112 | 213112 | 213112 | Cleaning, repairing, and dismantling oil and gas field lease tanks on a contract basis | |||
| 213112 | 213112 | 213112 | Contract services (except site preparation and related construction contractor activities) for oil and gas fields | |||
| 213112 | 213112 | 213112 | Core cutting in oil and gas wells, on a contract basis | |||
| 213112 | 213112 | 213112 | Core drilling, exploration services, oil and gas field | |||
| 213112 | 213112 | 213112 | Cutting cores in oil and gas wells on a contract basis | |||
| 213112 | 213112 | 213112 | Derrick building, repairing, and dismantling at oil and gas fields on a contract basis | |||
| 213112 | 213112 | 213112 | Dismantling of oil well rigs on a contract basis | |||
| 213112 | 213112 | 213112 | Drill-stem testing in oil, gas, dry, and service well drilling on a contract basis | |||
| 213112 | 213112 | 213112 | Drilling rat holes and mouse holes at oil and gas fields on a contract basis | |||
| 213112 | 213112 | 213112 | Drilling shot holes at oil and gas fields on a contract basis | |||
| 213112 | 213112 | 213112 | Drilling site preparation at oil and gas fields on a contract basis | |||
| 213112 | 213112 | 213112 | Excavating mud pits, slush pits, and cellars at oil and gas fields on a contract basis | |||
| 213112 | 213112 | 213112 | Exploration services for oil and gas (except geophysical surveying and mapping) on a contract basis | |||
| 213112 | 213112 | 213112 | Fishing for tools at oil and gas fields on a contract basis | |||
| 213112 | 213112 | 213112 | Gas well rig building, repairing, and dismantling on a contract basis | |||
| 213112 | 213112 | 213112 | Gas, compressing natural, in the field on a contract basis | |||
| 213112 | 213112 | 213112 | Geological exploration (except surveying) for oil and gas on a contract basis | |||
| 213112 | 213112 | 213112 | Geophysical exploration (except surveying) for oil and gas on a contract basis | |||
| 213112 | 213112 | 213112 | Hard banding oil and gas field service on a contract basis | |||
| 213112 | 213112 | 213112 | Hot oil treating of oil field tanks on a contract basis | |||
| 213112 | 213112 | 213112 | Hot shot service on a contract basis | |||
| 213112 | 213112 | 213112 | Hydraulic fracturing wells on a contract basis | |||
| 213112 | 213112 | 213112 | Impounding and storing salt water in connection with petroleum production | |||
| 213112 | 213112 | 213112 | Installing production equipment at the oil or gas field on a contract basis | |||
| 213112 | 213112 | 213112 | Lease tank cleaning and repairing on a contract basis | |||
| 213112 | 213112 | 213112 | Logging wells on a contract basis | |||
| 213112 | 213112 | 213112 | Mouse hole and rat hole drilling at oil and gas fields on a contract basis | |||
| 213112 | 213112 | 213112 | Mud service for oil field drilling on a contract basis | |||
| 213112 | 213112 | 213112 | Oil and gas field services (except contract drilling, site preparation and related construction contractor activities) on a contract basis | |||
| 213112 | 213112 | 213112 | Oil field exploration (except surveying) on a contract basis | |||
| 213112 | 213112 | 213112 | Oil sampling services on a contract basis | |||
| 213112 | 213112 | 213112 | Oil well logging on a contract basis | |||
| 213112 | 213112 | 213112 | Oil well rig building, repairing, and dismantling, on a contract basis | |||
| 213112 | 213112 | 213112 | Operating condensate gasoline field gathering lines on a contract basis | |||
| 213112 | 213112 | 213112 | Paraffin services, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Perforating oil and gas well casings on a contract basis | |||
| 213112 | 213112 | 213112 | Pipe testing services, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Plugging and abandoning wells on a contract basis | |||
| 213112 | 213112 | 213112 | Preparation of oil and gas field drilling sites (except site preparation and related construction contractor activities) on a contract basis | |||
| 213112 | 213112 | 213112 | Pulling oil and gas field casings, tubes, or rods on a contract basis | |||
| 213112 | 213112 | 213112 | Pumping oil and gas wells on a contract basis | |||
| 213112 | 213112 | 213112 | Rathole and mousehole drilling at oil and gas fields on a contract basis | |||
| 213112 | 213112 | 213112 | Rig skidding, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Roustabout mining services, on a contract basis | |||
| 213112 | 213112 | 213112 | Salt water disposal systems, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Sandblasting pipelines on lease, oil and gas field on a contract basis | |||
| 213112 | 213112 | 213112 | Seismograph exploration (except surveying) for oil and gas on a contract basis | |||
| 213112 | 213112 | 213112 | Servicing oil and gas wells on a contract basis | |||
| 213112 | 213112 | 213112 | Shot hole drilling, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Skidding of rigs, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Slush pits and cellars, excavation of, on a contract basis | |||
| 213112 | 213112 | 213112 | Steam cleaning oil and gas wells on a contract basis | |||
| 213112 | 213112 | 213112 | Stratigraphic drilling, oil and gas field exploration on a contract basis | |||
| 213112 | 213112 | 213112 | Surveying (except seismographic) oil or gas wells on a contract basis | |||
| 213112 | 213112 | 213112 | Swabbing oil or gas wells on a contract basis | |||
| 213112 | 213112 | 213112 | Well casing running, cutting and pulling, oil and gas field on a contract basis | |||
| 213112 | 213112 | 213112 | Well logging, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Well plugging, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Well pumping, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Well servicing, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Well surveying, oil and gas field, on a contract basis | |||
| 213112 | 213112 | 213112 | Wireline services, oil and gas field, on a contract basis |