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| диаметр колонны: 107 phrases in 15 subjects |
| Architecture | 3 |
| Construction | 4 |
| Drilling | 35 |
| General | 1 |
| Geology | 1 |
| Geophysics | 1 |
| Makarov | 1 |
| Mining | 1 |
| Oil / petroleum | 22 |
| Oil and gas | 11 |
| Oil and gas technology | 10 |
| Oilfields | 8 |
| Sakhalin | 5 |
| Sakhalin R | 1 |
| Technology | 3 |