For the complete documentation index, see llms.txt.
Skip to main content
New
20% · 1/5
Lesson 10 min 20 XP

OPEC: The Oil Cartel

How a group of oil-producing nations learned to coordinate production — and the limits of their power.

The World's Most Powerful Cartel

The Organization of the Petroleum Exporting Countries (OPEC) was founded in 1960 by Iran, Iraq, Kuwait, Saudi Arabia, and Venezuela. Today it has 13 members that collectively hold about 80% of the world's proven oil reserves and produce roughly 30% of global oil.

OPEC's power lies in its ability to coordinate production cuts and increases among members. When OPEC reduces output, global supply tightens and prices rise. When it increases production, prices fall. Saudi Arabia, as the largest producer with the most spare capacity, is the de facto leader — its decisions can move global markets within hours.

In 2016, OPEC expanded its coordination to include Russia and other non-OPEC producers in what became known as OPEC+ (or the Declaration of Cooperation). This gave the group even greater market influence. However, OPEC+ faces constant internal tensions: members have incentives to cheat on quotas, geopolitical rivalries (like Saudi-Iran tensions) complicate negotiations, and the rise of US shale production has eroded OPEC's market share.