 |
| gas area: 55 phrases in 21 subjects |
| Astronautics | 1 |
| Aviation | 1 |
| Economy | 1 |
| Energy industry | 1 |
| General | 3 |
| Geology | 4 |
| Karachaganak | 1 |
| Makarov | 1 |
| Military | 4 |
| Nanotechnology | 1 |
| Oil / petroleum | 4 |
| Oil and gas | 10 |
| Oil and gas technology | 2 |
| Oilfields | 7 |
| Procurement | 1 |
| Production | 2 |
| Sakhalin | 4 |
| Sakhalin R | 1 |
| Technology | 3 |
| Thermal engineering | 2 |
| Transport | 1 |