 |
| gas ratio: 211 phrases in 29 subjects |
| Astronautics | 1 |
| Astronomy | 1 |
| Automated equipment | 1 |
| Business | 1 |
| Cement | 1 |
| Drilling | 3 |
| Energy industry | 5 |
| Gas processing plants | 3 |
| General | 2 |
| Geology | 1 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Military | 2 |
| Mining | 1 |
| Nautical | 1 |
| Oil / petroleum | 67 |
| Oil and gas | 59 |
| Oil and gas technology | 11 |
| Oilfields | 11 |
| Petrography | 3 |
| Production | 1 |
| Sakhalin | 14 |
| Sakhalin R | 4 |
| Sakhalin S | 4 |
| Silicate industry | 1 |
| Technology | 6 |
| Tengiz | 1 |
| Weapons of mass destruction | 1 |
| Well control | 3 |