| Nace | Description | Number of Company |
|---|---|---|
| 49.50.03 | Operation services of pipeline pump stations | 18 |
| 50.20.17 | Transportation of crude oil, petroleum products and chemicals on international waters by tanker ships (except gases) | 197 |
| 50.20.24 | Transportation of gases on international waters by tanker ships | 15 |
| 50.20.25 | Transportation of crude oil, petroleum products and chemicals at the coastal line by tanker ships (except gases) (except inland waters) | 71 |
| 50.20.30 | Transportation of gases at the coastal line by tanker ships (except inland waters) | 1 |
