List of Articles OPEC Open Access Article Abstract Page Full-Text 1 - Feasibility study of the pricing of crude oil by OPEC and OECD countries using game theory in the form of a win– win Reza Fahimi Doab Ahmad Sabahi M. H. Mahdavi Adeli Ahmad Seyfi Open Access Article Abstract Page Full-Text 2 - The relationship between energy production and consumption with greenhouse gas emissions, a case study: Arab countries of OPEC in the Persian Gulf region (the UAE, Iraq, Arabia, Kuwait, and Qatar) Allahbakhsh Kavoosi Arian Kavoosi Open Access Article Abstract Page Full-Text 3 - The Effect of OPEC Statements on Fluctuations in Crude Oil Prices Fariba Shahbodaghlou Aliasghar Esmaeilnia gatabi azadeh mehrabian ROYA SEIFIPOUR 10.30495/eco.2020.674206 Open Access Article Abstract Page Full-Text 4 - Studying the Effect of Non-OPEC Member States Supply on the Price of Petroleum Mohammad-Ali Khatib Semnani Ali Asghar Esmailnia Marjan Dehabadi