Variant of North American Industry Classification System (NAICS) 2022 Version 1.0 for 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
- 21114 - Oil sands extractionCAN
- 211141 - In-situ oil sands extractionCAN
- 211142 - Mined oil sands extractionCAN
- 212i - E - Mining and quarrying (except oil and gas)
- 2121 - Coal mining
- 21211 - Coal mining
- 212114 - Bituminous coal mining
- 212115 - Subbituminous coal miningCAN
- 212116 - Lignite coal miningCAN
- 2122i - E - Metal ore mining
- 21229i - E - Other metal ore mining
- 212291 - Uranium ore miningUS
- 213i - E - Support activities for mining, and oil and gas extraction
- 2131i - E - Support activities for mining, and oil and gas extraction
- 21311i - E - Support activities for mining, and oil and gas extraction
- 213111 - Oil and gas contract drilling
- 213118 - Services to oil and gas extractionCAN
- 22i - E - Utilities
- 221i - E - Utilities
- 2211 - Electric power generation, transmission and distribution
- 22111 - Electric power generation
- 221111 - Hydro-electric power generationUS
- 221112 - Fossil-fuel electric power generationUS
- 221113 - Nuclear electric power generationUS
- 221119 - Other electric power generationCAN
- 22112 - Electric power transmission, control and distribution
- 221121 - Electric bulk power transmission and controlUS
- 221122 - Electric power distributionUS
- 2212 - Natural gas distribution
- 22121 - Natural gas distribution
- 221210 - Natural gas distribution
- 31-33i - E - Manufacturing
- 324i - E - Petroleum and coal product manufacturing
- 3241i - E - Petroleum and coal product manufacturing
- 32411 - Petroleum refineries
- 324110 - Petroleum refineries
- 48-49i - E - Transportation and warehousing
- 486 - Pipeline transportation
- 4861 - Pipeline transportation of crude oil
- 48611 - Pipeline transportation of crude oil
- 486110 - Pipeline transportation of crude oil
- 4862 - Pipeline transportation of natural gas
- 48621 - Pipeline transportation of natural gas
- 486210 - Pipeline transportation of natural gas
- 4869 - Other pipeline transportation
- 48691 - Pipeline transportation of refined petroleum products
- 486910 - Pipeline transportation of refined petroleum products
- 48699 - All other pipeline transportation
- 486990 - All other pipeline transportation
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