Game Theory in action: UAE exits OPEC explained

SYNOPSIS

The strength of OPEC was founded on collaboration, but only as long as it is profitable. This blog uses game theory to decode the UAE’s dramatic exit from the cartel. Increased capacity of production, inflexible quotas, and changing dynamics within the global oil industry have led to breakdown in the profitable cooperation and turn it into a Prisoner’s Dilemma situation.

India crossed 1 billion tonnes of coal production in FY25. That is a record. And yet, in the same in the same country, the year, the country imported over 243 million tonnes of coal abroad If that sounds contradictory, it is because it is. Welcome to India's coal paradox.

The United Arab Emirates, in May 2026, did what the Organization of Petroleum Exporting Countries (OPEC) had long feared: it quit. Following nearly six decades of membership, the UAE left OPEC, leaving the organization without its third-largest producer in one of the most significant exits in OPEC’s history.

To know why, ignore the petroleum graphs. Open up a game theory book.

The Cartel as a Cooperative Game

Game theory is concerned with strategic decision-making: how rational players make decisions, considering that their results not only depend on what they do, but also on what others do. One of the best examples of the use of game theory in the real world is OPEC.

First, the organization works like a cooperative game. Members decide to set a limit to their oil production, thus making the supply artificially low, raising prices and making all of them richer compared to the case when they act without coordination. The principle here is clear: compete, lose; cooperate, win.

However, things become exciting at this point. The cooperation is sustainable only insofar as each player keeps his promise. Once one of them increases its production without permission, earning additional income while other members keep production levels low, the motivation to comply goes away for everyone else. This example can be viewed as the Prisoner's Dilemma because the cooperation yields the optimal result for everyone, yet the rational behavior for each player is to betray.

The UAE’s Rational abandonment

However, after all those years, this equation no longer worked in favor of the UAE. Prior to the war between Iran and Iraq, the UAE’s productive capacity rose to 4.8 million barrels per day, whereas, in accordance with its agreement with OPEC, it could produce just 3.2 million barrels per day. This means that almost 1.6 million barrels were wasted every day. Further, it has planned to increase 5 million barrels per day by 2027.

The UAE’s decision to leave OPEC was driven by several structural factors:

a. It was restricted by quotas that did not match its expanding production capacity; it could have produced beyond its quota as per OPEC guidelines.

b. As the demand signals around the world changed due to the transition to alternative forms of energy, Abu Dhabi wanted to maximize its output.

c. The geopolitical rivalries and alliances in the Gulf also undermined the cartel’s cohesion.

Game Theory Perspective: This was a situation of defection where the UAE decided that the benefit derived from an independent course of action was greater than the payoff gained from maintaining collective quotas.

Understanding Market implications:

Weaker Cartel Discipline: The cartel will have lesser control over production because the UAE will be free to make production decisions according to their own terms. The other countries in the cartel will also have lower discipline when it comes to adhering to their quota agreements.

Potential Supply Increase: The UAE will be free to increase production within their country as they please because they are now operating outside the cartel. They will produce oil up to their maximum capacity, leading to a potential increase in global supply.

More Volatile Prices: This is likely to lead to volatile oil prices since markets cannot depend on the cartel anymore when it comes to making price and production decisions.

Conclusion:

Before the exit of the UAE from OPEC, the oil industry was essentially a repeated cooperative game. It is important to emphasize that there existed a strong incentive for the members of OPEC to retain their quotas in order to maintain high prices in the long term. In terms of game theory, it can be regarded as the breakdown of a successful and well-coordinated game in which the benefits of cooperation eventually gave way to individual incentives leading to a competitive environment. For OPEC, such a move by the UAE represents a major change in the structure of the oil industry worldwide.

Manav Trivedi