NAICS UNIVERSITY · Free research for insurance agents
Support Activities for Oil and Gas Operations
NAICS 213112 · United States · 2022 edition
This U.S. industry comprises establishments primarily engaged in performing support activities, on a contract or fee basis, for oil and gas operations (except geophysical surveying and mapping, site preparation, construction, and transportation activities). Services included are exploration; excavating slush pits and cellars, well surveying; running, cutting, and pulling casings, tubes, and rods; cementing wells, shooting wells; perforating well casings; acidizing and chemically treating wells; and cleaning out, bailing, and swabbing wells.
Start the review with well-control / blowout.
For Support Activities for Oil and Gas Operations, the saved research highlights well-control / blowout, pollution liability, employee injuries. Confirm how these arise in the actual operation, what controls are used and whether additional services change the proposed coverage.
Questions to ask
- What specific well services does the contractor perform — swabbing and cleaning only, or also cementing, acidizing, or perforating?
- What types of wells are serviced — conventional, unconventional, high-pressure/high-temperature?
- Does the contractor carry chemical inventory on-site or in vehicles, and if so, what materials?
- What master service agreements are in place with operators, and what insurance requirements do they specify?
- What is the prior loss history, particularly any pollution, well-control, or serious injury incidents?
- For Support Activities for Oil and Gas Operations, what should the underwriter know about operations involving high-pressure pumping, perforating, or fracturing services (often classified separately or declined)?
- For Support Activities for Oil and Gas Operations, what should the underwriter know about prior blowout, well-control, or significant pollution incidents?
- For Support Activities for Oil and Gas Operations, what should the underwriter know about work in high-pressure formations or ultra-deep wells?
Activities described by this code
Other activities to examine
- Contract drilling for oil and gas: 213111 — Drilling Oil and Gas Wells
- Operating oil and gas field properties on a contract or fee basis: 2111 — Oil and Gas Extraction
- Performing geophysical surveying and mapping services for oil and gas on a contract or fee basis: 541360 — Geophysical Surveying and Mapping Services
- Oil and gas pipeline and related structures construction and repair: 237120 — Oil and Gas Pipeline and Related Structures Construction
- Inspecting pipelines (i.e., visual): 541990 — All Other Professional, Scientific, and Technical Services
- Site preparation and related construction activities on a contract or fee basis: 238910 — Site Preparation Contractors
- Mining machinery and equipment repair and maintenance: 811310 — Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
- Providing transportation activities on a contract or fee basis: 48-49 — Transportation and Warehousing, based on the primary activity;
- Providing landman services on a contract or fee basis: 531390 — Other Activities Related to Real Estate
Census classification reference
For educational purposes only. AI-generated insurance research and automated logic can contain errors. Independently verify classification and coverage decisions.
Compare another operationInsurance operations research — draft
These contractors provide specialized well-service and support functions at oil and gas well sites on a contract basis — work may include cementing, acidizing, perforating, swabbing, chemical treatment, casing and tubing operations, and well surveying. Workers operate at active wellheads, often under pressure, with heavy equipment and hazardous chemicals.
Questions to investigate
- What specific well services does the contractor perform — swabbing and cleaning only, or also cementing, acidizing, or perforating?
- What types of wells are serviced — conventional, unconventional, high-pressure/high-temperature?
- Does the contractor carry chemical inventory on-site or in vehicles, and if so, what materials?
- What master service agreements are in place with operators, and what insurance requirements do they specify?
This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.