Top 10 countries by technically recoverable shale gas reserves, Source: US Energy Information Administration, "Technically Recoverable Shale Oil and Shale Gas Resources: An Assessment of 137 Shale Formations in 41 countries outside the United States", June 2013, viewed 20th July, 2013.
Citation
Top 10 Countries by Technically Recoverable Shale Gas Reserves, ChartsBin.com, viewed 19th May, 2025, <http://chartsbin.com/view/15646>.