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unbooked reserves (The company has a long reserve life, long production profile and high debt. An important task for this year and beyond is the commercialisation of our 100 million barrels of unbooked reserves. – АД  premier-oil.com Lavrov) | |||
| off-balance reserves (Leonid Dzhepko) | |||
| non-commercial reserves | |||
| resources; uneconomic resource base; outbalance; total resources; outbalance reserves (10-4 Bema) | |||
| забалансовые запасы: 6 phrases in 4 subjects |
| Energy industry | 1 |
| Mining | 1 |
| Oil and gas | 3 |
| Oil and gas technology | 1 |