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| English | Russian |
| Caspian oil-and-gas bearing province | Прикаспийская нефтегазоносная провинция (MichaelBurov) |
| oil and gas bearing province | нефтегазоносная провинция (MichaelBurov) |
| oil-and-gas bearing province | нефтегазоносная провинция (MichaelBurov) |
| Pre-Caspian oil-and-gas bearing province | Прикаспийская нефтегазоносная провинция (неверно вместо Caspian basin или Caspian province (according to 10-4) MichaelBurov) |