| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | hydrocarbon reservoir | Russia | A major source of national wealth and a critical component of geopolitical influence and power. | 1 |
| 2 | hydrocarbon reservoir | Russia | Abundant source of oil and gas, often found closer to the surface, making extraction relatively easier compared to other regions. | 1 |
| 3 | oil and gas reservoirs | Russia | Abundant in the deserts of the Middle East and the vast tundra of Siberia | 1 |