The major function of is to member countries coordinate oil production in an effort to stabilize the oil market, while achieving a reasonable return on oil investment.

Organization of the Petroleum Exporting Countries (OPEC)

Explanation:

The Organization of the Petroleum Exporting Countries (OPEC) is an organization comprised by Algeria, Angola, Ecuador, Equatorial Guinea, Gabon, Iran, Iraq, Kuwait, Libya, Nigeria, the Republic of the Congo, Saudi Arabia, United Arab Emirates, and Venezuela.

In their statute it can be read that their mission is to stabilize "oil markets in order to secure an efficient, economic and regular supply of petroleum to consumers, a steady income to producers and a fair return on capital for those investing in the petroleum industry."

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