2/20 BP Energy Outlook 2018
https://www.bp.com/en/global/corporate/media/press-releases/energy-outlook-2018.html
www.paj.gr.jp/from_chairman/data/2018/index.html#id1809
2/22 OPEC Second year of Declaration of Cooperation begins with record-breaking conformity level
http://www.opec.org/opec_web/en/press_room/4852.htm
