NAICS Code 21 Companies ... NAICS Code 211 Companies ... NAICS Code 2111 Companies ... NAICS Code 21112 Companies ... NAICS Code 211120 Companies
Crude Petroleum Extraction
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.
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