Variant of NAICS 2017 Version 3.0 - Energy sector
- E - Energy sector
- 21i - E - Mining, quarrying and oil and gas extraction
- 211 - Oil and gas extraction
- 2111 - Oil and gas extraction
- 21111 - Oil and gas extraction (except oil sands)CAN
- 211110 - Oil and gas extraction (except oil sands)CAN
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