National Occupational Classification (NOC) 2021 Version 1.0
- 8 - Natural resources, agriculture and related production occupations
- 83 - Occupations in natural resources and related production
- 831 - Occupations in natural resources and fisheries
- 8310 - Underground miners, oil and gas drillers and related occupations
- 83100 - Underground production and development miners
- 83101 - Oil and gas well drillers, servicers, testers and related workers
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