Organization of Petroleum Exporting Countries (OPEC)A multinational organization (est. 1960) that coordinates petroleum policies and economic aid among oil-producing nations. Members consist of Algeria, Angola, Ecuador (membership suspended 1992-2007), Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, the United Arab Emirates, and Venezuela. Indonesia was a member but suspended its membership in 2008. Saudi Arabia has traditionally dominated the organization, owing to its enormous oil reserves; the organization's members produce about 40% of the world's crude oil.