シェールオイル/EIAについて、ここに記述してください。
https://www.eia.gov/todayinenergy/detail.cfm?id=26552
Most natural gas production growth is expected to come from shale gas and tight oil plays
https://www.eia.gov/todayinenergy/images/2016.06.07/main.png
https://www.eia.gov/petroleum/weekly/archive/2016/160511/includes/analysis_print.cfm
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