MARKET KNOWLEDGE

Why Are Countries Gradually Leaving OPEC?

Market share has plunged from 53% to 28%. The cost of staying exceeds the benefits. For the cartel, it is now only a question of the speed of disintegration?

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On April 28, 2026, the United Arab Emirates (UAE) officially announced its departure from OPEC, effective May 1, after 59 years of membership.

At first glance, this is just a bad headline for an organization that has been losing influence for decades. But upon closer inspection, this is the largest domino ever to fall:

  • The largest producer ever to leave OPEC

  • Accounting for approximately 12% of the cartel's total production

  • Actual capacity of 4.8 million bpd was suppressed under a quota of just 3.2 million bpd.

The double-edged sword here:

  • On the supply side:

    • The US, Brazil, Guyana, and Canada have pushed non-OPEC+ production to 55 million bpd.

    • The US alone produced over 13 million barrels of crude oil per day - more than any OPEC member.

Bar chart and world map showing the top crude oil producers worldwide.
  • On the demand side:

    • EVs accounted for nearly 50% of new car sales in China in 2025.

    • The International Energy Agency (IEA) forecasts that global oil demand will peak around 2030.

    • EVs will displace 5.5 million bpd by the end of the decade - 5.5 times the 1 million bpd level in 2024.

Two blades cutting simultaneously, with OPEC caught in the middle.

Countries leaving OPEC is not the cause - but a symptom of a feedback loop that has been brewing since 2019.

  • As market share shrinks, the cost of membership rises, and the incentive to exit increases.

  • This is the Prisoner’s Dilemma playing out in real-time in the oil market.

  • The question is not whether OPEC will collapse - but at what speed it will do so, and who will be the next to walk out the door.

In today's article, Viet Hustler will dissect OPEC through three lenses: the game theory of cartel disintegration, intermarket transmission mechanisms, and the map of macro opportunities unfolding ahead.

UAE Exits OPEC/OPEC+: Signs of Cracks in the Global Oil Order

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