Acronym for an oil group

• Grp. whose members have reserves
• Oil pricing gp
• Grp. making barrels of money?
• Grp. that sets oil benchmarks
• Group of petroleum producing countries, formed in 1961
• Price-setting grp
• Barrel-producing gp
• Intl. price-setting group
• Grp. full of gas

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
initialism (acronym) for Organization of Petroleum-Exporting Countries, founded 1960.