NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01

NAICS 237120 — Oil and Gas Pipeline and Related Structures Construction

Oil and Gas Pipeline and Related Structures Construction

NAICS 237120 is the national industry code for oil and gas pipeline and related structures construction establishments in the United States. The Small Business Administration sets a size standard of $45.0 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.

SBA: $45.0 View full SBA standard

Official Inclusions

construction of structures (also buildings) that are integral parts of oil and gas networks
specialized trade activities related to oil and gas pipeline and related structures construction

Exclusions & Cross-References

Activities classified under other official NAICS codes:

building chemical plants (except petrochemical) and similar process or batch facilities (See 236210 Industrial building and structure construction (US))
pipe lining thermal insulating contractors (See 237990 Other heavy and civil engineering construction (US))

Official Illustrative Examples

Primary activities officially recognized by Census Bureau / Statistics Canada:

building petrochemical plants natural gas processing plant, construction oil and gas field distribution line construction oil refineries and petrochemical complexes, construction management petroleum refinery, construction storage tanks, natural gas or oil, construction

Complete Index of Activities (21 recognized activities) ▼

building petrochemical plants

chemical complex or facilities construction, general contractors

compressor, metering and pumping stations, gas and oil pipeline, construction

construction management, oil and gas pipelines

construction management, oil and gas pipelines and related structures

construction of structures (also buildings) that are integral parts of oil and gas networks

corrosion protection of underground pipelines and oil storage tanks

distribution lines, gas and oil, construction

gathering and distribution systems, gas and oil pipeline

natural gas pipelines, construction

natural gas processing plant, construction

oil and gas field distribution line construction

oil refineries and petrochemical complexes, construction management

petroleum refinery, construction

pipe lining (except thermal insulating) contractors

pipeline rehabilitation contractors

pipeline wrapping contractors

pipelines, oil and gas, construction

service lines, gas and oil, construction

specialized trade activities related to oil and gas pipeline and related structures construction

storage tanks, natural gas or oil, construction

Official data

Feature	Description
Official name	North American Industry Classification System (NAICS) 2022
Issuing authority	U.S. Census Bureau with OMB, Statistics Canada, and INEGI
Tax authority	Internal Revenue Service (IRS)
Purpose	Statistical business classification and federal contracting (SAM.gov, SBA standards)
Used in	SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk)
Active since	2022 (current edition)
Hierarchy level	Sector (2-digit)
Source	https://www.census.gov/naics/