The Statute of the Organization of the Petroleum Exporting Countries (OPEC Statute) is a global supranational meta-framework foundational-OPEC-treaty framework adopted by the 5 founding petroleum-exporting states in Baghdad — structurally distinctive globally as the only modern global supranational …
OPEC Statute adopted 14 September 1960 at Baghdad Conference in Baghdad Iraq by Iran + Iraq + Kuwait + Saudi Arabia + Venezuela — formal foundational OPEC treaty framework adopted.
OPEC Headquarters moved from Geneva Switzerland to Vienna Austria 1 September 1965 — formal OPEC Headquarters framework operational.
1973 Oil Crisis + Arab Oil Embargo 17 October 1973 - 17 March 1974 imposed by OAPEC during Yom Kippur War + OPEC quadrupling oil prices — formal foundational OPEC oil-pricing-power framework operational.
Iranian Revolution 1979 + 1979 Oil Crisis — formal OPEC oil-pricing framework operational.
Ecuador withdrew from OPEC 1992 + rejoined 2007 — formal OPEC member-withdrawal-rejoining framework.
Gabon withdrew from OPEC 1995 + rejoined 1 July 2016 — formal OPEC member-withdrawal-rejoining framework.
OPEC-Plus Declaration of Cooperation DoC signed 10 December 2016 in Vienna Austria + Indonesia withdrew from OPEC 30 November 2016 — formal foundational OPEC-Plus + member-departure framework operational.
Qatar withdrew from OPEC 1 January 2019 — formal OPEC member-departure framework operational.
Ecuador withdrew from OPEC 1 January 2020 + COVID-19 oil price war March-April 2020 between Saudi Arabia + Russia + historic OPEC-Plus cut 9.7 million barrels per day from 12 April 2020 — formal OPEC member-departure + COVID-19-oil-crisis framework operational.
Angola withdrew from OPEC 1 January 2024 — formal OPEC member-departure framework operational reducing OPEC to 12 members.