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|                                                                                                                                                                                                                                                                               | % Ownership |   | U.S.   |   | Non-U.S. |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------|--------|--------|--------|----------|
|                                                                                                                                                                                                                                                                               |        |   |   |   |     |
| Caspian Services Group Limited, BVI                                                                                                                                                                                                                                                | 100%        |   | 0      |   | 1        |
|        Caspian Services Group LLP, Kazakhstan(1)                                                                                                                                                                                                |        |   |   |   |     |
|                                                                                                                                                                                                                                                                               |        |   |   |   |     |
| Caspian Geophysics Ltd., BVI                                                                                                                                                                                                                                                       | 100%        |   | 0      |   | 3        |
|       Tat-Arka LLP, Kazakhstan(2)                                                                                                                                                                                                                    |        |   |   |   |     |
|       Kazmorgeophysica JSC, Kazakhstan(3)                                                                                                                                                                                                            |        |   |   |   |     |
|            Veritas-Caspian LLP, Kazakhstan(4)           CaspyMorService LLP, Russian           Federation (5) |        |   |   |   |     |
|                                                                                                                                                                                                                                                                               |        |   |   |   |     |
| Caspian Real Estate Ltd., BVI                                                                                                                                                                                                                                                      | 100%        |   | 0      |   | 4        |
|       Bauta JSC, Kazakhstan(6)                                                                                                                                                                                                                       |        |   |   |   |     |
|       Balykshi LLP, Kazakhstan(7)                                                                                                                                                                                                                    |        |   |   |   |     |
|             Mangistau Oblast Boat Yard LLP,            Kazakhstan (8)                                                                                      |        |   |   |   |     |
|                                                                                                                                                                                                                                                                               |        |   |   |   |     |

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