2022 NAICS national industry in sector 21 Mining, Quarrying, and Oil and Gas Extraction
211120 Crude Petroleum Extraction
NAICS 211120 is the US industry code for crude petroleum extraction. It covers establishments primarily engaged in (1) the exploration, development, and/or the production of petroleum from wells in which the hydrocarbons will initially flow or can be produced using normal or enhanced drilling and extraction techniques or (2) the production of crude petroleum from surface shales or tar sands or from reservoirs in which the hydrocarbons are semisolids.
- Code
- 211120 (2022 NAICS)
- Title
- Crude Petroleum Extraction
- Part of
- Oil and Gas Extraction
- SBA small business limit
- Up to 1,250 employees
- Closest UK SIC
- 06100 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This industry comprises establishments primarily engaged in (1) the exploration, development, and/or the production of petroleum from wells in which the hydrocarbons will initially flow or can be produced using normal or enhanced drilling and extraction techniques or (2) the production of crude petroleum from surface shales or tar sands or from reservoirs in which the hydrocarbons are semisolids. Establishments in this industry operate oil wells on their own account or for others on a contract or fee basis.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Performing oil field services for operators on a contract or fee basis are classified in Industry 21311, Support Activities for Mining.
- The combined activities of crude petroleum and natural gas extraction are classified in Industry Group 2111, Oil and Gas Extraction, based on the primary activity of the establishment.
- Refining crude petroleum into refined petroleum and liquid hydrocarbons are classified in Industry 324110, Petroleum Refineries.
Activities listed under 211120
The Census index assigns these 14 activities to this code. If your business matches one, this is your code.
- Crude petroleum from oil sand
- Crude petroleum from oil shale
- Crude petroleum lease condensate production
- Crude petroleum production
- Kerogen processing
- Offshore crude petroleum production
- Oil field development for own account
- Oil field exploration for own account
- Oil shale mining and/or beneficiating
- Operating crude petroleum field gathering lines, except on a contract basis
- Petroleum, crude, production (i.e., extraction)
- Shale, oil, mining and/or beneficiating
- Stripper oil well production
- Tar sands mining
SBA size standard for 211120
To count as a small business for SBA loans and federal contracts under NAICS 211120, your business (including affiliates) must not exceed 1,250 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 0610), so treat them as a starting point and check the definition.
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.