OPEC

High Quality Content by WIKIPEDIA articles! The Organization of the Petroleum Exporting Countries is a cartel of twelve countries made up of Algeria, Angola, Ecuador, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, the United Arab Emirates, and Venezuela. OPEC has maintained its headquarters in Vienna since 1965, and hosts regular meetings among the oil ministers of its Member Countries. Indonesia withdrew its membership in OPEC in 2008 after it became a net importer of oil, but stated it would likely return if it became a net exporter in the world again.