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Statistical classifications
North American Industry Classification System (NAICS) 1997
North American Industry Classification System (NAICS) 1997
Introduction
North American Industry Classification System (NAICS) 1997
Introduction
21111 - Oil and Gas Extraction
211113 - Conventional Oil and Gas Extraction
211114 - Non-Conventional Oil Extraction
21111 - Oil and Gas Extraction
211113 - Conventional Oil and Gas Extraction
211114 - Non-Conventional Oil Extraction
Date modified:
2018-03-26