Fracture of an Oil Cartel

Last Tuesday, April 28, the United Arab Emirates announced its withdrawal from OPEC and OPEC+, effective May 1. Fifty-nine years of membership in the oil cartel, swept away in a press release and a CNBC interview.

Questioned by Reuters, Energy Minister Suhail Al Mazrouei specified that he had “not raised the issue with other countries” — including Saudi Arabia. On CNN, pressed further on the point, he described the decision as a “sovereign national decision.” On CNBC, he added that the exit had been timed for a moment when it would have “minimal impact” on prices. The phrase is polite. Its meaning is not: the UAE waited until Hormuz was closed and the market already in shock to leave, knowing their departure would change nothing in the immediate chaos — but everything in the balance that follows.

The UAE is the cartel’s third-largest producer, with 3.2 million barrels per day, constrained for years by OPEC+ quotas — some 35% below installed capacity, according to Robin Mills, CEO of Qamar Energy. ADNOC, the national oil company, has committed $150 billion to raise that capacity to 5 million barrels per day by 2027. Freed from quotas, the Emirates also possess the Habshan-Fujairah pipeline, capable of carrying 1.8 million barrels per day directly to the Gulf of Oman, bypassing the Strait. Saudi Arabia has an equivalent — the East-West pipeline to Yanbu on the Red Sea, expanded to 7 million barrels per day since the start of the war.

Riyadh, however, remains inside OPEC. That is the crucial difference: the UAE will have both the capacity and the freedom.

Why now

The U.S.-Iran conflict has entered its ninth week. Hormuz remains effectively closed. OPEC production fell 27% in March — with 7.88 million barrels per day wiped out, worse than COVID, worse than 1991. Brent is hovering near $111. OPEC+’s share of global production has fallen from 48% to 44% in a single month, according to the IEA.

It is in this window that Abu Dhabi strikes. When everyone is bleeding, one more departure goes unnoticed. When Hormuz reopens, the Emirates will be the only producer able to raise output without asking Vienna for permission.

What OPEC loses — and what Riyadh risks

The Organization is not losing just another member. Alongside Saudi Arabia, it is losing one of only two producers with meaningful spare capacity: the lever that allowed it to modulate global supply. According to Dan Pickering of Pickering Energy Partners, OPEC’s share of world supply will fall from roughly 30% to 26%. Indonesia, Qatar, Ecuador, Angola, and Gabon had already left. None of those departures, however, deprived the cartel of its operational mechanics. This one does. Robin Mills warns others could follow: Kazakhstan, another significant producer frustrated by quotas, “could leave as well.”

The fracture is geopolitical too. The UAE and Saudi Arabia no longer speak the same language. The coalition in Yemen imploded at the end of December, when Riyadh bombed what it described as a shipment of weapons intended for separatists backed by Abu Dhabi. The Abraham Accords drew the Emirates closer to Washington and Israel. It is the war in Iran — during which the UAE endured weeks of missile strikes — that sealed the rupture, as Abu Dhabi concluded the cartel offered neither military protection nor economic freedom.

Riyadh therefore inherits a dilemma with no good option. Cut production to defend prices, and it cedes market share to an unconstrained UAE. Flood the market to punish them, and it sabotages its own revenues just as Vision 2030 devours cash.

The consequences — and their limits

Major importers — India, China, Europe — may hope, over the medium term, for a less politicized supply and a barrel more subject to market dynamics. Yet an oil market without a coordinator is not a calmer environment. OPEC, for all its flaws, cushioned demand shocks. Without it, cycles of overproduction and price collapse become more likely, destabilizing more fragile producers such as Nigeria, Algeria, and Venezuela.

Even Emirati supply remains conditional. As long as Hormuz stays closed, spare capacity can only flow through Fujairah, whose infrastructure was targeted by Iranian drones in March. Outside OPEC, the UAE also loses a shield: diplomatic coordination with Riyadh. That exposes it more directly to Iranian retaliation and deprives it of the influence it once exercised from within the cartel. An isolated petro-state in a Gulf at war is a vulnerable state, whatever the size of its reserves.

Abu Dhabi’s strategy also contains its own contradiction: investing $150 billion in oil expansion while proclaiming itself a champion of transition through the “We the UAE 2031” plan is not diversification, but a wager that oil will finance its own obsolescence before the market does it instead. If prices collapse durably in a post-OPEC volume war, the financing of that diversification itself dries up. Abu Dhabi is playing both sides of the board, but only one can win.

What remains open

It would be premature to diagnose the death of OPEC, but the cartel has unquestionably just lost its credibility as a mechanism of collective discipline. What happened on Tuesday was proof that a central member can conclude that individual sovereignty pays better than coordination — and act accordingly, alone and without notice.

The first test will be concrete: the 41st OPEC and non-OPEC ministerial meeting is scheduled for June 7. The twelve remaining members must decide whether to keep quotas unchanged without the UAE, revise them downward to offset newly liberated Emirati barrels, or abandon any pretense of supply control altogether. If Kazakhstan or another dissatisfied producer uses the interval to announce its own exit, it will be the architecture of global oil governance that collapses — not in one great crash, but through the silent accumulation of defections.