Support Activities for Mining
Key Figures
Figures are published for NAICS 21311 directly.
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Official definition
This industry comprises establishments primarily engaged in providing support services, on a contract or fee basis, required for the mining and quarrying of minerals and for the extraction of oil and gas. Drilling, taking core samples, and making geological observations at prospective sites (except geophysical surveying and mapping) for minerals, on a contract or fee basis, are included in this industry.
Source: US Census Bureau, 2017 NAICS Definitions. Public domain.
Which code does this activity belong in?
NAICS 21311 covers establishments providing mining support services on a contract or fee basis, including drilling, core sampling, and geological observations at prospective mineral sites. The boundary with Oil and Gas Extraction (211) lies in whether an establishment operates or develops oil and gas properties versus merely providing support services for their drilling or operation; geophysical surveying and mapping are excluded from support activities and classified elsewhere. Similarly, establishments engaged in the actual mining or quarrying of minerals are classified in Mining (except Oil and Gas) (212), while those providing contract support services for mineral mining fall within 21311.