Members of OPEC, the organization of petroleum exporting countries are all middle eastern nations.

欧佩克成员, 石油输出国家组织是所有的中东国家。

On this date in 1960, Iran, Iraq, Kuwait, Saudi Arabia and Venezuela joined together to form the organization of the petroleum exporting countries or opec.

1960年的这一天，伊朗、伊拉克、科威特、沙特阿拉伯和委内瑞拉联合成立了石油输出国组织或欧佩克。