| SECTION B: Mining and quarrying |
| Division 06 : Extraction of crude petroleum and natural gas |
| Group | Class | Sub-class | Description |
| 061 | | | Extraction of crude petroleum |
| | 0610 | | Extraction of crude petroleum |
| | | | This class excludes: |
| | | | - support activities for oil and gas extraction, see 0910 |
| | | | - oil and gas exploration, see 0910 |
| | | | - manufacture of refined petroleum products, see 1920 |
| | | | - recovery of liquefied petroleum gases in the refining of petroleum, see 1920 |
| | | | - operation of pipelines, see 4930 |
| | | 06101 | Off shore extraction of crude petroleum |
| | | 06102 | On shore extraction of crude petroleum |
| 062 | | | Extraction of natural gas |
| | 0620 | | Extraction of natural gas |
| | | | This class excludes: |
| | | | - support activities for oil and gas extraction, see 0910 |
| | | | - oil and gas exploration, see 0910 |
| | | | - recovery of liquefied petroleum gases in the refining of petroleum, see 1920 |
| | | | - manufacture of industrial gases, see 2011 |
| | | | - operation of pipelines, see 4930 |
| | | 06201 | Offshore Extraction of natural gas |
| | | 06202 | On shore Extraction of natural gas |