Area Oil reserves Natural gas reserves billion tonnes % of world reserves trillion m3 % of world reserves Entire planet 152 100 149.3 100 Ural-African oil and gas belt 110.3 74 96.3 65 Including oil and gas basins: Persian Gulf 92.6 60.9 44.4 30 West Siberian 12.0 8 46.4 32

Table 1: Proven oil reserves (category А+В+С1) worldwide and in the sedimentary basins of the Ural-African oil and gas belt.