Based on a comparison of 95 countries in 2012, USA ranked the highest in marketed natural gas production with 25,308 bil cb ft followed by Russia and Iran. On the other end of the scale was Slovenia with 0.071 bil cb ft, Luxembourg with 0.141 bil cb ft and Greece with 0.177 bil cb ft.
Total marketed natural gas production reached 126,222 bil cb ft in 2012 in the World according to EIA. This is 1.56 % more than in the previous year and 24.3 % more than 10 years ago.
Historically, total marketed natural gas production reached an all time high of 126,222 bil cb ft in 2012 and an all time low of 76,563 bil cb ft in 1990. The average annual growth amounted to 2.30 % since 1990.
The top ranked country, USA, accounted for 20.1 % of marketed natural gas production in the world. The top 3 countries hold a 43.0 % share while the ten largest countries some 66.4 % in 2012.
Data for more countries are available at Marketed Natural Gas Production indicator page.