 |
| petroleum oil: 85 phrases in 18 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Caspian | 2 |
| Ecology | 1 |
| General | 4 |
| Geology | 1 |
| Hydraulics | 10 |
| Law | 1 |
| Mechanic engineering | 1 |
| Military | 8 |
| Mining | 1 |
| Nautical | 1 |
| Oil / petroleum | 17 |
| Oil and gas | 13 |
| Oil processing plants | 7 |
| Oils and lubricants | 7 |
| Polymers | 1 |
| Technology | 8 |