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US airline stocks slip as oil surges after Trump rejects Iran peace proposal

May 11, 2026 5:33 AM EDT

Investing.com -- Oil prices surged on Monday after President Donald Trump rejected Iran’s latest response to a U.S. peace proposal as "totally unacceptable," pushing U.S. airline stocks lower in premarket trading as investors weighed the prospect of a prolonged supply disruption.


Brent crude futures climbed 2.7%, to $104.02 a barrel at 05:14 ET (09:14 GMT), while U.S. West Texas Intermediate rose 2.3%, to $97.55 a barrel. The Strait of Hormuz remained largely closed, keeping global supply tight.


As a result, shares in Southwest Airlines and United Airlines fell 1% in premarket trading, while Delta Air Lines and American Airlines edged lower 0.8% each.



The jump in oil prices reversed much of last week’s losses, when both contracts shed around 6% on expectations that the 10-week-old conflict could be nearing a resolution and oil shipments through the strait would soon resume.


Those hopes faded after Iran released its counter-proposal on Sunday, which went well beyond the narrow ceasefire framework the U.S. had put forward. Tehran called for a broader end to fighting across the region, including in Lebanon, where U.S. ally Israel is engaged with Iran-backed Hezbollah.


Iran also demanded compensation for war damage, an end to the U.S. naval blockade, guarantees against further strikes, sanctions relief, and the lifting of a ban on Iranian oil exports, according to Iranian state media and the semi-official Tasnim news agency. Tehran also emphasized its sovereignty over the Strait of Hormuz.


Trump dismissed the proposal promptly. "I don’t like it — TOTALLY UNACCEPTABLE," he wrote on Truth Social.


Washington had originally proposed halting the fighting before moving to more complex issues, including Iran’s nuclear program.


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