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| коммерчески доступные запасы (Although drilling of 25 wells was expected last year, only 14 took place, continuing a downward trend. Only 50 million barrels of viable reserves of oil or its gas equivalent were discovered. BBC Alexander Demidov) | |||
| рентабельные запасы (MichaelBurov) | |||
| viable reserves: 2 phrases in 1 subject |
| Oil and gas | 2 |