|
| Estimated Reserves | Share of GCC | Share of World |
| Qatar | 858 | 58.6% | 13.0% |
| Saudi Arabia | 298 | 20.3% | 4.5% |
| UAE | 215 | 14.7% | 3.3% |
| Kuwait | 63 | 4.3% | 1.0% |
| Oman | 25 | 1.7% | 0.4% |
| Bahrain | 6 | 0.4% | 0.1% |
| GCC Total | 1464 | 100% | 22.2% |
| Iran | 1183 | - | 18.0% |
| Russia | 1140 | - | 17.3% |
| Turkmenistan | 617 | - | 9.4% |
| United States | 308 | - | 4.7% |
| Rest of World | 1877 | - | 28.5% |
| Total World | 6589 | - | 100% |