213111

Drilling Oil and Gas Wells

Mining, Quarrying, and Oil and Gas Extraction › Support Activities for Mining › Support Activities for Mining

SBA Size Standard

1,000 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

21

Sector

Mining, Quarrying, and Oil and Gas Extraction

213

Subsector

Support Activities for Mining

2131

Industry Group

Support Activities for Mining

213111

National Industry (This Code)

Drilling Oil and Gas Wells

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
This U.S. industry comprises establishments primarily engaged in drilling oil and gas wells for others on a contract or fee basis. This industry includes contractors that specialize in spudding in, drilling in, redrilling, and directional drilling.

✓ Small Business Eligibility at a Glance

Based on SBA Table of Small Business Size Standards (2024)

Size Standard

1,000 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 213111

Set-Aside Programs

8(a), WOSB, HUBZone, SDVOSB

Certification Required

No (self-certify in SAM.gov)

Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.

Cross-References

The following activities are classified elsewhere in the NAICS system:

Performing exploration (except geophysical surveying and mapping) services for oil and gas on a contract or fee basis--are classified in U.S. Industry 213112, Support Activities for Oil and Gas Operations; and
Performing geophysical surveying and mapping services for oil and gas on a contract or fee basis--are classified in Industry 541360, Geophysical Surveying and Mapping Services.

How to Use NAICS 213111 in SAM.gov

NAICS code 213111Drilling Oil and Gas Wells — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Support Activities for Mining space will be able to find your business.

If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of 1,000 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 213111.

Log in Entity Registration Goods & Services Add NAICS Code Enter 213111 Save

Frequently Asked Questions

What is NAICS code 213111?

NAICS code 213111 is 'Drilling Oil and Gas Wells', classified under the Mining, Quarrying, and Oil and Gas Extraction sector (NAICS 21). This U.S. industry comprises establishments primarily engaged in drilling oil and gas wells for others on a contract or fee basis. This industry includes contractors that specialize in spudding in, d

What is the SBA small business size standard for NAICS code 213111?

The SBA defines a small business under NAICS code 213111 (Drilling Oil and Gas Wells) as one with 1,000 employees. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.

How do I register NAICS code 213111 in SAM.gov?

To register NAICS code 213111 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 213111 (Drilling Oil and Gas Wells) to your NAICS code list. You may designate one code as your Primary NAICS code.

Quick Actions

Related NAICS Codes

Other codes in Support Activities for Mining

GovBidLab Pro

Not sure which NAICS codes fit your business?

GovBidLab's Federal Sales Roadmap includes a complete NAICS and PSC code strategy tailored to your business.

Get Your Free Consultation

No commitment required • Response within 24 hours

Find Another NAICS Code

Search all 1,012 NAICS codes with SBA size standards and descriptions

Browse by sector:

Agriculture Construction Manufacturing Information/IT Health Care