NAICS 237120 - Oil and Gas Pipeline and Related Structures Construction
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What is NAICS 237120
NAICS code 237120 covers establishments primarily engaged in the construction of oil and gas pipelines, mains, refineries, storage tanks, and related structures essential to the energy infrastructure. These businesses undertake new construction, reconstruction, rehabilitation, and repair projects, ensuring the continuous and safe transport and processing of oil and natural gas. The sector includes specialty trade contractors specifically focused on oil and gas pipeline systems and integral facilities such as pumping stations and petrochemical plants. Government agencies contract these services to support energy infrastructure development, maintenance, and modernization, which are vital for national energy security and economic growth.
Industry Classification for NAICS 237120
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
- Natural gas pipeline construction
- Pumping station, gas and oil transmission, construction
- Storage tank, natural gas or oil, tank farm or field, construction
- Natural gas processing plant construction
Breakdown for NAICS 237120
- Includes construction of oil and gas pipelines, mains, refineries, and storage tanks.
- Covers new construction, reconstruction, rehabilitation, and repair projects.
- Encompasses specialty trade contractors focused on oil and gas infrastructure.
- Includes all integral structures such as pumping stations and natural gas processing plants.
- Relevant for both government and private sector energy infrastructure projects.
Included Activities for NAICS 237120
- Constructing distribution lines for gas and oil.
- Building oil refineries and petrochemical plants.
- Installing gas mains and gathering lines in oil fields.
- Erecting pumping stations for gas and oil transmission.
- Constructing storage tanks and tank farms for natural gas or oil.
- Performing rehabilitation and repair of existing pipeline systems.
- Building natural gas processing plants.
- Conducting site preparation and foundation work for pipeline facilities.
Business Types for NAICS 237120
- Pipeline construction contractors
- Specialty trade contractors for oil and gas
- Engineering and construction firms specializing in energy infrastructure
- Petrochemical plant builders
- Oil refinery construction companies
- Maintenance and repair service providers for pipelines
Subcategories for NAICS 237120
- Compressor, metering and pumping station, gas and oil pipeline, construction
- Construction management, oil and gas pipeline
- Construction management, oil refinery and petrochemical complex
- Corrosion protection, underground pipeline and oil storage tank
- Distribution line, gas and oil, construction
- Gas main construction
- Gathering line, gas and oil field, construction
- Manhole, oil and gas, construction
- Natural gas pipeline construction
- Natural gas processing plant construction
- Oil and gas field distribution line construction
- Oil pipeline construction
- Oil refinery construction
- Petrochemical plant construction
- Petroleum refinery construction
- Pipe lining (except thermal insulating) contractors
- Pipeline construction on oil and gas field gathering lines to point of distribution on a contract basis
- Pipeline rehabilitation contractors
- Pipeline wrapping contractors
- Pipeline, gas and oil, construction
- Pumping station, gas and oil transmission, construction
- Refinery, petroleum, construction
- Service line, gas and oil, construction
- Storage tank, natural gas or oil, tank farm or field, construction
Government Buyers for NAICS 237120
Federal agencies such as the Department of Energy, the U.S. Army Corps of Engineers, and the Department of Defense frequently procure services under NAICS 237120 to build, upgrade, and maintain critical oil and gas infrastructure. State and local governments may also engage contractors to support regional energy projects or regulatory compliance efforts. These contracts ensure the safe and efficient delivery of energy resources, support environmental standards, and facilitate infrastructure resilience against natural disasters or other disruptions.
Contract Types & Procurement for NAICS 237120
Contracts awarded under this NAICS code commonly include firm-fixed-price, cost-reimbursement, and time-and-materials types, depending on project scope and risk. Procurement methods range from competitive bidding and Requests for Proposals (RFPs) to sole-source contracts for specialized capabilities. Contract values vary widely, from smaller maintenance and repair jobs to large-scale construction projects worth millions of dollars, reflecting the complex and capital-intensive nature of oil and gas infrastructure development.
Details for NAICS 237120
Explore the hierarchy and related codes for this industry
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