Classification of energy technologies
1 - Fossil fuels
| Code | Title |
|---|---|
| 11 | Crude oils and natural gas exploration |
| 12 | Crude oils and natural gas production and storage |
| 13 | Oil sands and heavy crude oil surface and sub-surface production |
| 14 | Refining, processing and upgrading of fossil fuels |
| 15 | Coal production, preparation and processing |
| 16 | Transportation of fossil fuels |
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