211120 — Crude Petroleum Extraction
Description
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 (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- 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; and
- Refining crude petroleum into refined petroleum and liquid hydrocarbons--are classified in Industry
- 324110, Petroleum Refineries.
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 1311 - Crude Petroleum and Natural Gas (via SIC1987:1311→NAICS1997:211111→2002:211111→2007:211111→2012:211111→2017:211120→2022:211120)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 9620 — Minerals, Natural and Synthetic
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 211120 valid in 2022? ▾
Yes, 211120 is a valid 6-digit 2022 NAICS national industry code representing 'Crude Petroleum Extraction' under Sector 21 in the official classification index.
What is the SBA size standard for NAICS code 211120? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,250 employees for NAICS code 211120 (Crude Petroleum Extraction), calculated based on employees.
What is the legacy SIC equivalent for NAICS 211120? ▾
According to official Census Bureau concordance tables, NAICS code 211120 (Crude Petroleum Extraction) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 1311 - Crude Petroleum and Natural Gas.
Related Pages & Tools
Further regulatory reference links for NAICS code 211120:
- Sector 21 Directory Hub — List of related industries in the Mining, Quarrying, and Oil and Gas Extraction sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 211120 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Crude Petroleum Extraction).
- IRS PBA Code for Oil and Gas Extraction — Principal Business Activity tax reporting details.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.