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North American Industry Classification System - NAICS

NAICS Search

2022 NAICS Search
2017 NAICS Search
2012 NAICS Search

Introduction to NAICS

The North American Industry Classification System (NAICS) is the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.

NAICS was developed under the auspices of the Office of Management and Budget (OMB), and adopted in 1997 to replace the Standard Industrial Classification (SIC) system. It was developed jointly by the U.S. Economic Classification Policy Committee (ECPC), Statistics Canada, and Mexico's Instituto Nacional de Estadistica y Geografia, to allow for a high level of comparability in business statistics among the North American countries.

This official U.S. Government Web site provides the latest information on plans for NAICS revisions, as well as access to various NAICS reference files and tools. Additional information on the background and development of NAICS is available in the section of this Web site.

2017 NAICS Definition

T = Canadian, Mexican, and United States industries are comparable.

237120 Oil and Gas Pipeline and Related Structures Construction

This industry comprises establishments primarily engaged in the construction of oil and gas lines, mains, refineries, and storage tanks. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialty trade contractors are included in this industry if they are engaged in activities primarily related to oil and gas pipeline and related structures construction. All structures (including buildings) that are integral parts of oil and gas networks (e.g., storage tanks, pumping stations, and refineries) are included in this industry.


Illustrative Examples:

Distribution line, gas and oil, construction
Oil refinery construction
Gas main construction
Petrochemical plant construction
Gathering line, gas and oil field, construction
Pumping station, gas and oil transmission, construction
Natural gas pipeline construction
Storage tank, natural gas or oil, tank farm or field, construction
Natural gas processing plant construction


Cross-References. Establishments primarily engaged in--
  • Building chemical plants (except petrochemical) and similar process or batch facilities--are classified in Industry , Industrial Building Construction;
  • Oil well rig building, repairing, and dismantling, on a contract basis--are classified in U.S. Industry , Support Activities for Oil and Gas Operations;
  • Inspecting pipelines--are classified in Industry , All Other Professional, Scientific, and Technical Services; and
  • Mining machinery and equipment repair and maintenance--are classified in Industry , Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance.
Table displays the corresponding index entries of the databases by year
2007 NAICS 2012 NAICS2017 NAICSCorresponding Index Entries
237120237120237120Compressor, metering and pumping station, gas and oil pipeline, construction
237120237120237120Construction management, oil and gas pipeline
237120237120237120Construction management, oil refinery and petrochemical complex
237120237120237120Corrosion protection, underground pipeline and oil storage tank
237120237120237120Distribution line, gas and oil, construction
237120237120237120Gas main construction
237120237120237120Gathering line, gas and oil field, construction
237120237120237120Manhole, oil and gas, construction
237120237120237120Natural gas pipeline construction
237120237120237120Natural gas processing plant construction
237120237120237120Oil and gas field distribution line construction
237120237120237120Oil pipeline construction
237120237120237120Oil refinery construction
237120237120237120Petrochemical plant construction
237120237120237120Petroleum refinery construction
237120237120237120Pipe lining (except thermal insulating) contractors
237120237120237120Pipeline construction on oil and gas field gathering lines to point of distribution on a contract basis
237120237120237120Pipeline rehabilitation contractors
237120237120237120Pipeline wrapping contractors
237120237120237120Pipeline, gas and oil, construction
237120237120237120Pumping station, gas and oil transmission, construction
237120237120237120Refinery, petroleum, construction
237120237120237120Service line, gas and oil, construction
237120237120237120Storage tank, natural gas or oil, tank farm or field, construction

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