Variant of NAICS 1997 - Goods and services
- 11-33 - Goods
- 21 - Mining and Oil and Gas Extraction
- 211 - Oil and Gas Extraction
- 2111 - Oil and Gas Extraction
- 21111 - Oil and Gas Extraction
- 211113 - Conventional Oil and Gas Extraction
- 211114 - Non-Conventional Oil Extraction
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