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Oil prices fall as Iran says it is open to diplomacy to end the war

By Thomson Reuters Sep 23, 2026 | 8:16 PM

By Jeslyn Lerh and Arathy Somasekhar

SINGAPORE, Sept 24 (Reuters) – Oil prices retreated on Thursday after climbing 4% in the previous session as Iran said it remained open to diplomacy to end the US-Iran war, though the two countries ​remain far apart on ways to do so.

Brent crude futures fell 92 ‌cents, or 0.9%, to $102.16 a barrel at 0400 GMT, while West Texas Intermediate futures eased 77 cents, or 0.8%, to $91.39.

Iran and the United States remain divided over how to bring an end to their war, but diplomacy must continue, a senior Iranian official told Reuters on Wednesday, after Iran’s president told ‌the ​UN General Assembly that Tehran would never surrender to US ⁠pressure.

The official said Tehran was ⁠reviewing Washington’s response to its peace proposals, which prioritise lifting a US naval blockade on Iranian ports and reopening the Strait of Hormuz.

“Oil is falling because the market is unwinding part of its geopolitical risk premium as Gulf supply recovers and ​hopes of a US-Iran diplomatic breakthrough grow,” said Priyanka Sachdeva, head of market insights at Phillip Nova.

“Brent retains a larger geopolitical and sea-route premium because international crude is ⁠more directly exposed to Middle East and Hormuz disruption, ⁠while WTI benefits more from relatively insulated US supply,” Sachdeva added.

Earlier ​on Wednesday, Iran’s security chief Mohsen Rezaei said the Strait of Hormuz would not be ​reopened while Iran’s conditions are not met.

US Secretary of State Marco Rubio ‌told reporters on Wednesday that a deal with Iran would involve hard work over a period of time, adding that President Donald Trump also had military options.

Traders also evaluated possible curbs on diesel exports. Ultra-low-sulfur diesel futures were down about 5% in midday trading after ⁠website Politico said the Trump administration was preparing plans for a 90-day diesel ban, but the White House denied this.

US Energy Secretary Chris Wright had said earlier on Wednesday that a ⁠diesel export ban would not ‌work even though Trump said he would support it.

Analysts and ⁠market watchers have warned that such a move would do little ​to ease ‌high energy prices and could worsen global supplies and further ​disrupt economies.

US ⁠distillate stockpiles including diesel and heating oil fell by 428,000 barrels to 107.4 million barrels last week, Energy Information Administration data showed.

Meanwhile, US crude inventories rose by 3 million barrels to 426.4 million barrels last week, though analysts polled by Reuters had expected a 641,000-barrel draw. [EIA/S]

(Reporting by Jeslyn Lerh in Singapore; Additional reporting by Arathy Somasekhar in Houston; Editing by Sonali ​Paul and Shri Navaratnam)