North American Industry Classification System (NAICS) code 237120 is used by federal buyers for market research, set-aside size standards, and reporting. Official titles come from the Census Bureau NAICS structure.
Official definition
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.
Included activity examples
- Distribution line, gas and oil, construction
- Gas main construction
- Gathering line, gas and oil field, construction
- Natural gas pipeline construction
- Natural gas processing plant construction
- Oil refinery construction
- Petrochemical plant construction
- Pumping station, gas and oil transmission, construction
- Storage tank, natural gas or oil, tank farm or field, construction
- Official title
- Oil and Gas Pipeline and Related Structures Construction
- Code level
- 6
- Open opportunities
- 13 open · 101 active
SBA small-business size standard
$45M average annual receipts
Average annual receipts basis
Check this standard and its exceptionsExcluded or separately classified activities
Official Census cross-references identify activities that belong under another North American Industry Classification System (NAICS) code.
Building chemical plants (except petrochemical) and similar process or batch facilities--are classified in Industry 236210, Industrial Building Construction;
Inspecting pipelines (i.e., visual)--are classified in Industry 541990, All Other Professional, Scientific, and Technical Services;
Installing and maintaining natural gas distribution lines performed by natural gas utility companies--are classified in Subsector 221, Utilities;
Manufacturing floating oil and gas drilling and production platforms--are classified in U.S. Industry 336611, Ship Building and Repairing.
Mining machinery and equipment repair and maintenance--are classified in Industry 811310, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance; and
Oil well rig building, repairing, and dismantling, on a contract basis--are classified in U.S. Industry 213112, Support Activities for Oil and Gas Operations;
Source and edition
2022 NAICS Manual definition and reference material from the U.S. Census Bureau.