NAICS 5 Digit Industry 21311

Industry 21311

NAICS 5  Digit Industry 21311 – Support Activities for Mining

Definition of NAICS 5 Digit Industry 21311: This industry comprises establishments primarily engaged in providing support services, on a contract or fee basis, required for the mining and quarrying of minerals and for the extraction of oil and gas. Drilling, taking core samples, and making geological observations at prospective sites (except geophysical surveying and mapping) for minerals, on a contract or fee basis, are included in this industry.

Cross-References for NAICS 21311

What codes are similar to this industry that might be more applicable? The cross-reference guide below displays the codes that are similar to industry 21311. Please review to find the most applicable classification.

  • Performing geophysical surveying and mapping services for minerals (i.e., coal, metal ores, oil and gas, and nonmetallic minerals) on a contract or fee basis–are classified in Industry 54136, Geophysical Surveying and Mapping Services;
  • Mining, quarrying, and/or beneficiating on a contract or fee basis–are classified in Subsector 212, Mining (except Oil and Gas), based on the mineral mined; and
  • Operating oil and gas field properties on a contract or fee basis–are classified in Subsector 211, Oil and Gas Extraction, based on the activity.

Other Index Entries for NAICS 5-Digit Industry 21311

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with industry 21311. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Acidizing oil and gas field wells on a contract basis
  • Anthracite mine tunneling on a contract basis
  • Anthracite mining services (except site preparation and related construction contractor activities) on a contract basis
  • Auger coal mining services (except site preparation and related construction contractor activities) on a contract basis
  • Bituminous coal mining services (except site preparation and related construction contractor activities) on a contract basis
  • Bituminous coal or lignite surface mine site development (except site preparation and related construction contractor activities) on a contract basis
  • Bituminous coal stripping service on a contract basis
  • Bituminous or lignite auger mining service on a contract basis
  • Blasting services, coal mining, on a contract basis
  • Blasting services, metal mining, on a contract basis
  • Blasting services, nonmetallic minerals mining (except fuels) on a contract basis
  • Boring test holes for metal mining on a contract basis
  • Boring test holes for nonmetallic minerals mining (except fuels) on a contract basis
  • Building oil and gas well foundations on a contract basis
  • Building, erecting, repairing, and dismantling oil and gas field rigs and derricks on a contract basis
  • Cementing oil and gas well casings on a contract basis
  • Chemically treating oil and gas wells (e.g., acidizing, bailing, swabbing) on a contract basis
  • Cleaning oil and gas field lease tanks on a contract basis
  • Cleaning out (e.g., bailing out, steam cleaning, swabbing) wells on a contract basis
  • Cleaning wells on a contract basis
  • Cleaning, repairing, and dismantling oil and gas field lease tanks on a contract basis
  • Coal mining services (except site preparation and related construction contractor activities)
  • Coal mining support services (tunneling, blasting, training, overburden removal)(except site preparation and related construction contractor activities)
  • Contract services (except site preparation and related construction contractor activities) for oil and gas fields
  • Core cutting in oil and gas wells, on a contract basis
  • Core drilling, exploration services, oil and gas field
  • Culm bank recovery, anthracite, on a contract basis
  • Culm bank recovery, coal, on a contract basis
  • Cutting cores in oil and gas wells on a contract basis
  • Derrick building, repairing, and dismantling at oil and gas fields on a contract basis
  • Directional drilling of oil and gas wells on a contract basis
  • Dismantling of oil well rigs on a contract basis
  • Draining or pumping coal mines on a contract basis
  • Draining or pumping of metal mines on a contract basis
  • Draining or pumping of nonmetallic mineral mines (except fuels) on a contract basis
  • Drill-stem testing in oil, gas, dry, and service well drilling on a contract basis
  • Drilling directional oil and gas field wells on a contract basis
  • Drilling for gas on a contract basis
  • Drilling for oil on a contract basis
  • Drilling gas and oil field wells on a contract basis
  • Drilling oil and gas field service wells on a contract basis
  • Drilling rat holes and mouse holes at oil and gas fields on a contract basis
  • Drilling services for coal mining on a contract basis
  • Drilling services for metal mining on a contract basis
  • Drilling services for nonmetallic mineral (except fuels) mining on a contract basis
  • Drilling shot holes at oil and gas fields on a contract basis
  • Drilling site preparation at oil and gas fields on a contract basis
  • Drilling water intake wells, oil and gas field on a contract basis
  • Excavating mud pits, slush pits, and cellars at oil and gas fields on a contract basis
  • Exploration services for coal (except geophysical surveying and mapping) on a contract basis
  • Exploration services for metal (except geophysical surveying and mapping) on a contract basis
  • Exploration services for nonmetallic minerals (except geophysical surveying and mapping) on a contract basis
  • Exploration services for oil and gas (except geophysical surveying and mapping) on a contract basis
  • Fishing for tools at oil and gas fields on a contract basis
  • Gas well drilling on a contract basis
  • Gas well rig building, repairing, and dismantling on a contract basis
  • Gas, compressing natural, in the field on a contract basis
  • Geological exploration (except surveying) for oil and gas on a contract basis
  • Geophysical exploration (except surveying) for oil and gas on a contract basis
  • Hard banding oil and gas field service on a contract basis
  • Hot oil treating of oil field tanks on a contract basis
  • Hot shot service on a contract basis
  • Hydraulic fracturing wells on a contract basis
  • Impounding and storing salt water in connection with petroleum production
  • Installing production equipment at the oil or gas field on a contract basis
  • Lease tank cleaning and repairing on a contract basis
  • Lignite mining services (except site preparation and related construction contractor activities) on a contract basis
  • Logging wells on a contract basis
  • Metal mining support services (shaft sinking, tunneling, blasting) (except site preparation and related construction contractor activities)
  • Mine development (except site preparation and related construction contractor activities) for metal mining on a contract basis
  • Mine development for nonmetallic minerals mining (except fuels) on a contract basis
  • Mine shaft sinking services for coal mining on a contract basis
  • Mine shaft sinking services for metal mining on a contract basis
  • Mine shaft sinking services for nonmetallic minerals (except fuels) on a contract basis
  • Mine tunneling services for coal mining on a contract basis
  • Mine tunneling services for metal mining on a contract basis
  • Mine tunneling services for nonmetallic minerals (except fuels) on a contract basis
  • Mouse hole and rat hole drilling at oil and gas fields on a contract basis
  • Mud service for oil field drilling on a contract basis
  • Nonmetallic minerals mining support services (e.g., blasting, shaft sinking, tunneling) (except site preparation and related construction contractor activities)on a contract basis
  • Oil and gas field services (except contract drilling, site preparation and related construction contractor activities) on a contract basis
  • Oil and gas well drilling services (redrilling, spudding, tailing) on a contract basis
  • Oil field exploration (except surveying) on a contract basis
  • Oil sampling services on a contract basis
  • Oil well drilling on a contract basis
  • Oil well logging on a contract basis
  • Oil well rig building, repairing, and dismantling, on a contract basis
  • Overburden removal for coal mining on a contract basis
  • Overburden removal for metal mining on a contract basis
  • Overburden removal for nonmetallic minerals mining (except fuels) on a contract basis
  • Paraffin services, oil and gas field, on a contract basis
  • Perforating oil and gas well casings on a contract basis
  • Pipe testing services, oil and gas field, on a contract basis
  • Plugging and abandoning wells on a contract basis
  • Preparation of oil and gas field drilling sites (except site preparation and related construction contractor activities) on a contract basis
  • Prospect and test drilling services for coal mining on contract basis
  • Prospect and test drilling services for metal mining on contract basis
  • Prospect and test drilling services for nonmetallic mineral mining (except fuels) on a contract basis
  • Pulling oil and gas field casings, tubes, or rods on a contract basis
  • Pumping oil and gas wells on a contract basis
  • Pumping or draining coal mines on a contract basis
  • Pumping or draining metal mines on a contract basis
  • Pumping or draining nonmetallic mineral mines (except fuel) on a contract basis
  • Rathole and mousehole drilling at oil and gas fields on a contract basis
  • Reconditioning oil and gas field wells on a contract basis
  • Removal of condensate gasoline from field gathering lines on a contract basis
  • Removal of overburden for coal mining on a contract basis
  • Removal of overburden for metal mining on a contract basis
  • Removal of overburden for nonmetallic minerals mining (except fuels) on a contract basis
  • Reworking oil and gas wells on a contract basis
  • Rig skidding, oil and gas field, on a contract basis
  • Roustabout mining services, on a contract basis
  • Salt water disposal systems, oil and gas field, on a contract basis
  • Sandblasting pipelines on lease, oil and gas field on a contract basis
  • Seismograph exploration (except surveying) for oil and gas on a contract basis
  • Service well drilling on a contract basis
  • Servicing oil and gas wells on a contract basis
  • Shaft sinking for coal mines on a contract basis
  • Shaft sinking for metal mines on a contract basis
  • Shot hole drilling, oil and gas field, on a contract basis
  • Sinking shafts for coal mining on a contract basis
  • Sinking shafts for metal mining on a contract basis
  • Skidding of rigs, oil and gas field, on a contract basis
  • Slush pits and cellars, excavation of, on a contract basis
  • Spudding in oil and gas wells on a contract basis
  • Steam cleaning oil and gas wells on a contract basis
  • Stratigraphic drilling, oil and gas field exploration on a contract basis
  • Stripping overburden services for coal mining on a contract basis
  • Stripping overburden services for metal mining on a contract basis
  • Stripping overburden services for nonmetallic minerals mining (except fuels) on a contract basis
  • Surveying (except seismographic) oil or gas wells on a contract basis
  • Swabbing oil or gas wells on a contract basis
  • Tailing in oil and gas field wells on a contract basis
  • Test drilling for metal mining on a contract basis
  • Test drilling for nonmetallic minerals mining (except fuel) on a contract basis
  • Tunneling services for coal mining on a contract basis
  • Water intake well drilling, oil and gas field on a contract basis
  • Well casing running, cutting and pulling, oil and gas field on a contract basis
  • Well drilling (i.e., oil, gas, water intake wells) on a contract basis
  • Well logging, oil and gas field, on a contract basis
  • Well plugging, oil and gas field, on a contract basis
  • Well pumping, oil and gas field, on a contract basis
  • Well servicing, oil and gas field, on a contract basis
  • Well surveying, oil and gas field, on a contract basis
  • Wireline services, oil and gas field, on a contract basis
  • Workover of oil and gas wells on a contract basis

Industry Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry (Where you are now), and the most specific is the 6 digit NAICS code. If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 21: Mining, Quarrying, and Oil and Gas Extraction
    • Subsector 213: Support Activities for Mining
      • Industry Group 2131: Support Activities for Mining
        • Industry 21311: Support Activities for Mining
          • 6 Digit Code(s) NAICS 213111: Drilling Oil and Gas Wells
            • 6 Digit Code(s) NAICS 213112: Support Activities for Oil and Gas Operations
            • 6 Digit Code(s) NAICS 213113: Support Activities for Coal Mining
            • 6 Digit Code(s) NAICS 213114: Support Activities for Metal Mining
            • 6 Digit Code(s) NAICS 213115: Support Activities for Nonmetallic Minerals (except Fuels) Mining

Other helpful NAICS Downloads

View the download page for the material below.

NAICS 5 Digit Industry 21311 | Class Codes