Petroleum refineries
North American Industry Classification System code (NAICS): 32411
This industry comprises establishments primarily engaged in refining crude petroleum. Petroleum refining involves the transformation of crude oil by such processes as cracking and distillation.
324110 · Petroleum refineries
This Canadian industry comprises establishments primarily engaged in refining crude petroleum. Petroleum refining involves the transformation of crude oil by such processes as cracking and distillation.
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