Answer:
protects their national members' petroleum reserves for their own use
Step-by-step explanation:
The Organization of Petroleum Exporting Countries (OPEC) protects their national members' petroleum reserves for their own use. The OPEC was established in 1960 and has about 15 member countries presently. The aim of OPEC is to protect the interest of member countries, regulate daily output of oil and hence the global price of oil.