Answer:
a coalition of nations who produce and export oil.
Step-by-step explanation:
OPEC (Organization of petroleum exporting nations), is an organization made up of 14 countries that was established in order to secure uniform policies of oil production, prices, and sale around the world that would be beneficial to the organization´s members. It was founded in 1960 and today their combined oil reserves make up for the vast majority of oil reserves in the world (Venezuela, Saudi Arabia and Iran making up for much of these reserves).