Natural Gas is one of the energy sources that used for industrial and common purpose of residences. Natural Gas reserves not explored completely, there are thousands of unexplored Places across the globe and as per the report Russia stand in first with 44 trillion Cubic meters of Gas Reserves and Iran, Qatar respectively in second and third position. Russia is largest country in the world, that mean lot of space to explore, Qatar is smallest country with Gas reserve of 25 trillion, so Qatar owns highest Gas Reserves in little space.
| Rank | Country/Region | Proven reserves (m³) | Date of Information |
| 1 | Iran | 33,600,000,000,000 | 12 June 2013 est |
| 2 | Russia | 32,900,000,000,000 | 12 June 2013 est |
| 3 | Qatar | 25,100,000,000,000 | 12 June 2013 est |
| 4 | Turkmenistan | 17,500,000,000,000 | 12 June 2013 est |
| 5 | United States | 8,500,000,000,000 | 12 June 2013 est |
| 6 | Saudi Arabia | 8,200,000,000,000 | 1 January 2012 est |
| 7 | Venezuela | 5,524,500,000,000 | 19 July 2011 |
| 8 | Nigeria | 5,246,000,000,000 | 1 January 2010 est |
| 9 | Algeria | 4,502,000,000,000 | 1 January 2010 est |
| 10 | Australia | 3,825,000,000,000 | 1 January 2012 est |