Who are the former members of opec?

Former members of the Organization of the Petroleum Exporting Countries (OPEC) include Indonesia, which suspended its membership in 2009, and Qatar, which left the organization in 2019. Ecuador also had a fluctuating membership, joining in 1973, leaving in 1992, rejoining in 2007, and then exiting again in 2020. These countries left OPEC for various reasons, including economic considerations and changes in national energy policies.