The Organization of the Petroleum Exporting Countries (OPEC) was founded during a conference held in Baghdad, Iraq, from September 10 to 14, 1960. Representatives of Iran, Iraq, Kuwait, Saudi Arabia, and Venezuela established the organization to coordinate petroleum policies and counter the dominance of Western oil companies known as the “Seven Sisters.” This founding marked a pivotal shift in global oil governance, empowering exporting nations to exert greater control over pricing and production terms, laying the groundwork for OPEC’s growing geopolitical influence. It was formally constituted in January 1961. Sources vary on the exact founding date—with some sources citing September 14 as the key day in Baghdad. This event signaled a move toward resource sovereignty and transformed the structure of international energy politics.