According to the BP Statistical Review of World Energy 2020, the estimated volume of world natural gas reserves at the end of 2019 was 6,539 trillion cubic feet.
| Country | U.S. EIA (2021) | OPEC (2018) | BP (2020) | Production km3/year (2021) | Years of production in reserve |
|---|---|---|---|---|---|
| Russia | 47,800 | 50,617 | 37,400 | 701.55 | 68.1 |
| Iran | 34,000 | 33,810 | 32,100 | 248.3 | 140 |
| Qatar | 23,900 | 23,861 | 24,700 | 169 | 141 |
| United States | 17,710 | 9,067 | 12,600 | 977.44 | 18.1 |
| Turkmenistan | 10,000 | 9,838 | 13,600 | 87.02 | 100 |
| Saudi Arabia | 9,430 | 8,715 | 6,000 | 115.6 | 81.6 |
| China | 6,650 | 2,934 | 8,400 | 212 | 31.4 |
| United Arab Emirates | 6,090 | 6,091 | 5,900 | 63.77 | 95.5 |
| Venezuela | 6,000 | 5,707 | 6,300 | 15.9 | 400 |
| Nigeria | 5,750 | 5,627 | 5,500 | 44.4 | 130 |
| Algeria | 4,500 | 4,504 | 2,300 | 102.1 | 44.1 |
| Iraq | 3,740 | 3,744 | 3,500 | 10.7 | 350 |
| Australia | 3,230 | 3,173 | 2,400 | 147.1 | 22 |
| Kazakhstan | 2,400 | 1,898 | 2,300 | 20 | 120 |
| Canada | 2,100 | 2,059 | 2,400 | 182.2 | 12 |
| Azerbaijan | 2,000 | 1,227 | 2,500 | 31.38 | 60 |
| Uzbekistan | 1,800 | 1,564 | 800 | 49.7 | 36 |
| Egypt | 1,800 | 2,221 | 2,100 | 69.43 | 26 |
| Kuwait | 1,800 | 1,784 | 1,700 | 21.3 | 85 |
| Norway | 1,600 | 2,314 | 1,400 | 115.1 | 14 |
| Libya | 1,500 | 1,505 | 1,400 | 14.6 | 100 |
| India | 1,400 | 1,289 | 1,300 | 32.3 | 43 |
| Malaysia | 1,200 | 2,909 | 900 | 70.99 | 17 |
| Ukraine | 1,100 | 304 | 1,100 | 18.9 | 58 |
| Indonesia | 1,000 | 2,866 | 1,300 | 58.96 | 20 |
| Vietnam | 710 | 203 | 600 | 7.02 | 100 |
| Oman | 650 | 884 | 700 | 39.19 | 17 |
| Myanmar | 650 | 273 | 400 | 16.3 | 40 |
| Pakistan | 590 | 757 | 400 | 33.39 | 18 |
| Argentina | 400 | 381 | 400 | 40.44 | 10 |
| Brazil | 370 | 325 | 300 | 23.8 | 16 |
| Peru | 310 | 513 | 261 | 12 | 26 |
| Trinidad and Tobago | 310 | 433 | 290 | 25.7 | 12 |
| Bolivia | 310 | 310 | 213 | 15.5 | 20 |
| Brunei | 260 | 252 | 222 | 11.4 | 23 |
| Syria | 240 | 300 | 269 | 3.26 | 74 |
| Mexico | 180 | 146 | 178 | 23.9 | 7.5 |
| United Kingdom | 180 | 269 | 187 | 32.48 | 5.5 |
| Thailand | 140 | 180 | 143 | 36.36 | 3.9 |
| Netherlands | 130 | 804 | 130 | 21.6 | 6 |
| Bangladesh | 130 | 346 | 110 | 23.9 | 5.4 |
| Romania | 100 | 105 | 78 | 9.32 | 10 |
| Poland | 91 | 56.3 | 72.2 | 5.64 | 16 |
| Colombia | 88 | 104 | 86 | 11.4 | 7.7 |
| Italy | 45 | 27.1 | 100 | 3.2 | 14 |
| Denmark | 30 | 73.9 | 100 | 1.2 | 20 |
| Germany | 20 | 39.6 | 100 | 4.98 | 4 |
