OPEC shocker as UAE leaves oil cartel days after negotiating swap lines with Scott Bessent’s Treasury

The United Arab Emirates stunned the already reeling global energy markets Tuesday by announcing it is quitting both OPEC and OPEC+, dealing a heavy blow to the oil exporters’ cartel and its de facto leader, Saudi Arabia—and doing so just days after Treasury Secretary Scott Bessent publicly backed an emergency dollar swap line for Abu Dhabi before the U.S. Senate.

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OPEC has absorbed departures before—Qatar left at the beginning of 2019, but Qatar produces almost entirely natural gas rather than oil, so its exit didn’t meaningfully alter the group’s clout. Angola left two years ago, citing production quota disputes, but Angola’s output was modest enough that markets barely flinched. The UAE is categorically different. Along with Iran, the UAE is OPEC’s most significant producer after Saudi Arabia and Iraq—and critically, the Saudis and the UAE had been growing increasingly at odds even before the current war, with disputes over production baselines, regional politics, and strategic direction that stretch back years. The loss of the UAE is the single biggest defection in OPEC’s history.

A $20 billion swap line

UAE central bank governor Khaled Mohamed Balama traveled to Washington during the IMF and World Bank spring meetings to meet with Bessent and Federal Reserve representatives, officially to “align perspectives on current financial priorities and to explore innovative solutions that support the stability of the regional financial system.” The concept of the “swap line” has taken on added importance to world central banking since the Global Financial Crisis of 2008, as financial historian Adam Tooze argued in his account of the crisis, Crashed, with the Treasury and Federal Reserve pumping liquidity into a system that was on life support. More recently, Bessent extended a $20 billion swap line to Argentina amid market volatility ahead of a pivotal election, which he said was fully repaid within months.

Bessent defended the UAE arrangement before a Senate appropriations subcommittee without naming the UAE directly. A few days earlier, White House National Economic Council director Kevin Hassett reinforced the message, calling the UAE “an incredibly valuable ally” and pledging Treasury would “make every effort” to assist while saying swap lines probably would not be required.

The UAE floated the possibility of pricing some oil transactions in Chinese yuan if dollar liquidity tightened—a scenario that would have accelerated the erosion of dollar dominance in global energy markets. Opinions vary about the fragility of the so-called petrodollar system that was in place for a whopping 50 years, from 1974 until 2024, and only recently revealed by a Bloomberg FOIA request in 2016, but there can be no doubt that Washington has moved quickly in a highly fluid situation involving energy and currency flows.

The political backdrop is a UAE that has spent months absorbing Iranian missile strikes largely alone. UAE diplomatic advisor Anwar Gargash made that frustration explicit at the Gulf Influencers Forum on Monday, just hours before the OPEC announcement. “The Gulf Cooperation Council countries supported each other logistically, but politically and militarily, I think their position has been the weakest historically,” he said. “I expect this weak stance from the Arab League, and I am not surprised by it. But I haven’t expected it from the Cooperation Council, and I am surprised by it.”

Washington’s response has been markedly different. Secretary of State Marco Rubio held direct security talks with UAE Foreign Minister Sheikh Abdullah bin Zayed Al Nahyan as recently as April 26. Israel, at U.S. encouragement, deployed its Iron Dome missile defense system to UAE soil—operated by IDF personnel—believed to be the first time Iron Dome has ever been deployed in a foreign country during an active conflict. The U.S. has also rapidly expanded its military footprint at Al Dhafra Air Base in Abu Dhabi. The UAE has additionally demanded that any U.S.-Iran settlement explicitly guarantee freedom of navigation through the Strait of Hormuz, effectively giving Abu Dhabi a veto condition over ceasefire negotiations.

Petrodollar takes the spotlight

The OPEC exit lands on top of a petrodollar system that was already fraying at its edges. As Fortune reported in April, the dollar’s share of global foreign exchange reserves has fallen to roughly 57%—a 25-year low—down from a peak of 72% in 2001. Ships passing through Hormuz have at times paid tolls to Iran in Bitcoin; Iran sells an increasing share of its oil to China in yuan; and India may now be buying Iranian oil in yuan as well. Deutsche Bank economists have warned the conflict is strengthening Iran-China ties and “could be remembered as a key catalyst for erosion in petrodollar dominance, and the beginnings of the petroyuan.”

Washington seems to have calculated that the UAE cannot join this brewing new regime, although economists urge caution about overstat