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NAICS 237120: Oil and Gas Pipeline and Related Structures Construction

Oil and Gas Pipeline and Related Structures Construction is NAICS code 237120. A business is small under it with $45 million or less in average annual receipts. 11 federal contracts are open on SAM.gov under this code right now.

SBA size standard
$45 million or less in average annual receipts
Open contracts now
11
Federal spending, FY2025
$605.1 million
Share won by small businesses
42%
Small businesses registered
1,939
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Open federal contracts for oil and gas pipeline and related structures construction

See all 11 open contracts under NAICS 237120 →

What NAICS 237120 covers

The Census Bureau's NAICS index lists these kinds of work under 237120:

  • Compressor, metering and pumping station, gas and oil pipeline, construction
  • Construction management, oil and gas pipeline
  • 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

The index lists 24 entries for this code in all.

Read the full definition, including what's excluded, on census.gov.

SBA size standard for 237120

To count as a small business for a contract assigned NAICS 237120, your business must have $45 million or less in average annual receipts. Receipts are averaged over your last five completed fiscal years.

From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.

Who buys oil and gas pipeline and related structures construction

Agencies that awarded the most under NAICS 237120 over the last three fiscal years, per USAspending.gov:

AgencyObligated
Department of the Navy$798 million
Department of the Army$624.7 million
Department of the Air Force$168.5 million
Department of Veterans Affairs$16 million
Bureau of Safety and Environmental Enforcement$4.1 million
U.S. Coast Guard$3.9 million
Federal Prison System / Bureau of Prisons$3.8 million
National Park Service$3.6 million

Open notices right now come from Dept of Defense (9) and Department of the Interior (2).

Set-asides on open 237120 contracts

  • Total small business set-aside: 6
  • No set-aside (full and open): 3
  • 8(a) set-aside: 1
  • Service-disabled veteran-owned set-aside: 1

Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.

Your competition

1,939 businesses with active SAM.gov registrations are rated small under NAICS 237120, most of them in Texas (245), California (198), Florida (119), Alaska (82) and Louisiana (68). Look any of them up with the free CAGE code and UEI lookup.

Federal spending under 237120 by year

Fiscal yearContract obligations
FY2024$829.5 million
FY2025$605.1 million
FY2026$199.5 million
FY2027 (so far)$0

Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.

Related NAICS codes

Frequently asked questions

What is NAICS code 237120?

237120 is the 2022 NAICS code for Oil and Gas Pipeline and Related Structures Construction. The Census Bureau's index lists work such as compressor, metering and pumping station, gas and oil pipeline, construction, construction management, oil and gas pipeline, corrosion protection, underground pipeline and oil storage tank under it. Federal contracting uses the 2022 codes.

What is the SBA size standard for NAICS 237120?

$45 million or less in average annual receipts. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.

Are there government contracts for oil and gas pipeline and related structures construction?

Yes. 11 federal contract opportunities under NAICS 237120 are open on SAM.gov right now. Agencies obligated about $605.1 million under this code in fiscal year 2025, according to USAspending.gov.

How do I add NAICS code 237120 to my SAM.gov registration?

Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.

Keep going

FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.