National Occupational Classification (NOC) 2016 Version 1.3
- 8 - Natural resources, agriculture and related production occupations
- 84 - Workers in natural resources, agriculture and related production
- 841 - Mine service workers and operators in oil and gas drilling
- 8411 - Underground mine service and support workers
- 8412 - Oil and gas well drilling and related workers and services operators
- Date modified: