The disaggregation of OPEC’s Gulf production coalition: UAE’s exit and the unravelling of the Arab oil order

On 1st May, 2026, the United Arab Emirates formally departs from the Organisation of the Petroleum Exporting Countries (OPEC), ending almost six decades of membership that began with the Emirate of Abu Dhabi in 1967. Officials in Abu Dhabi frame the decision as a sovereign recalibration of national interest, while markets read it as a supply-side shock muted by the Iran war. Both readings are insufficient.

The UAE’s withdrawal is neither sudden nor primarily political. It is the structural endpoint of a six-year economic realignment whose internal logic was always incompatible with collective output discipline. To grasp why, one must abandon the familiar image of OPEC as a unified body of 12 equal members.

OPEC has never functioned as a unified cartel. It has functioned as a core-periphery arrangement in which a small Gulf coalition — Saudi Arabia, the UAE and Kuwait — bears the full cost of production restraint, while the remaining membership free-rides on the resulting price floor.

OPEC has never functioned as a unified cartel. It has functioned as a core-periphery arrangement in which a small Gulf coalition — Saudi Arabia, the UAE and Kuwait — bears the full cost of production restraint, while the remaining membership free-rides on the resulting price floor.

The broader membership produces at or near its technical ceiling regardless of agreed quotas, contributing to coordination in name rather than practice.

What sustained OPEC was therefore not the institution itself but this inner coalition’s willingness to absorb the fiscal cost of discipline on behalf of members incapable or unwilling to share it. Jeff Colgan of Brown University has accurately described the organisation as a hub-and-spoke arrangement whose coherence depends entirely on the hub’s continued commitment. Remove one of the three core spokes and what remains is no longer a functioning coalition.

READ: UAE to withdraw from OPEC, OPEC

It becomes, in the precise language of industrial organisation theory, a Stackelberg duopoly. Saudi Arabia stands as the reluctant price leader, compelled to defend a floor, while the UAE operates as a quantity-maximising free agent capturing the market........

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