Natural gas reserves as a share of worldwide reserves rose 2.57% to 17.9% in Iran in 2017, according to EIA.
Historically, natural gas reserves as a share of worldwide reserves in Iran reached an all time high of 18.9% in 1980 and an all time low of 12.3% in 1987. When compared to Iran's main peers, natural gas reserves as a share of worldwide reserves in Iraq amounted to 1.69%, 0.290% in Pakistan and 4.01% in Turkmenistan in 2017.
Iran has been ranked 2nd within the group of 97 countries we follow in terms of natural gas reserves as a share of worldwide reserves.
| Natural Gas Reserves (As % of Worldwide Reserves) | Unit | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
| Afghanistan | % | 0.026% | 0.026% | 0.026% | 0.025% | 0.026% | ||||||||||||||||
| China | % | 1.60% | 1.57% | 2.06% | 2.23% | 2.45% | ||||||||||||||||
| India | % | 0.565% | 0.598% | 0.640% | 0.686% | 0.754% | ||||||||||||||||
| Iran | % | 15.6% | 17.2% | 17.3% | 17.1% | 18.0% | ||||||||||||||||
| Iraq | % | 1.67% | 1.64% | 1.63% | 1.60% | 1.67% | ||||||||||||||||
| Kazakhstan | % | 1.27% | 1.25% | 1.24% | 1.22% | 1.27% | ||||||||||||||||
| Kuwait | % | 0.947% | 0.933% | 0.928% | 0.911% | 0.950% | ||||||||||||||||
| Pakistan | % | 0.442% | 0.391% | 0.351% | 0.382% | 0.370% | ||||||||||||||||
| Saudi Arabia | % | 4.11% | 4.16% | 4.21% | 4.17% | 4.41% | ||||||||||||||||
| Syria | % | 0.127% | 0.125% | 0.124% | 0.122% | 0.127% | ||||||||||||||||
| Turkmenistan | % | 3.95% | 3.89% | 3.87% | 3.80% | 3.97% | ||||||||||||||||
| Uzbekistan | % | 0.969% | 0.955% | 0.950% | 0.932% | 0.973% |
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