Countries by natural gas proven reserves (2014), based on data from <a rel="nofollow" class="external text" href="https://www.cia.gov/library/publications/the-world-factbook/rankorder/2253rank.html">The World Factbook</a>.
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#003333;color:#202122;text-align:center;"> </div> ≥ 10,000 km<sup>3</sup></div> <div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#006666;color:#202122;text-align:center;"> </div> ≥ 3,000 km<sup>3</sup></div> <div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#009999;color:#202122;text-align:center;"> </div> ≥ 1,000 km<sup>3</sup></div> <div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#00cccc;color:#202122;text-align:center;"> </div> ≥ 100 km<sup>3</sup></div> <div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#00ffff;color:#202122;text-align:center;"> </div> ≥ 50 km<sup>3</sup></div> <div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#66ffff;color:#202122;text-align:center;"> </div> ≥ 10 km<sup>3</sup></div> <div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#99ffff;color:#202122;text-align:center;"> </div> ≥ 1 km<sup>3</sup></div> <div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#ccffff;color:#202122;text-align:center;"> </div> &gt; 0 km<sup>3</sup></div> <div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#c0c0c0;color:#202122;text-align:center;"> </div> 0 km<sup>3</sup></div>
<a href="//commons.wikimedia.org/wiki/User:Ali_Zifan" class="mw-redirect" title="User:Ali Zifan">Ali Zifan</a>
<span class="int-own-work" lang="en">Own work</span> based on <a href="//commons.wikimedia.org/wiki/File:BlankMap-World.svg" title="File:BlankMap-World.svg">File:BlankMap-World.svg</a>