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strikeAug 18, 2026

Oil climbs as fading US-Iran peace hopes raise supply risks

Summary

Iran will shift to a "fully offensive" military posture because efforts to negotiate a permanent end to the war with the U.S. have stalled, a senior Iranian official told Reuters on Monday, as Washington ruled out extending a temporary ceasefire agreement. Outward progress towards peace talks and a resumption of oil tanker traffic through the strategic Strait of Hormuz has ground to a halt, threatening to extend the conflict that the U.S. and Israel launched with attacks on Iran on February 28. Brent crude futures climbed 27 cents, or 0.3%, to $91.14 by 0003 GMT, after rising to their highest since July 30 on Monday. U.S. West Texas Intermediate crude futures were up 42 cents to $85.04 a barrel, after gaining more than 1% earlier in the session to $85.37, their highest since July 31. "Oil has jumped to start the week as U.S.-Iran relations look increasingly shaky. A deal to reopen the Strait of Hormuz still does not appear to be in sight, and shipping numbers remain at a trickle," said chief market analyst at KCM, Tim Waterer. Following attacks on tankers, only five commodity vessels transited the Hormuz strait on Saturday, with none registered for Sunday, ship-tracking data from Kpler showed, versus 31 in the prior weekend. Yemen's Houthis attacked what they described as a Saudi military ship and four escort vessels in the Red Sea with missiles, according to the group's military spokesperson Yahya Saree on Telegram. "The dual chokehold on the Strait of Hormuz and the Bab el-Mandeb remains highly significant. These are not secondary concerns. They sit at the centre of the current supply-risk narrative," KCM's Waterer said. Iran has separately been negotiating an agreement on managing the strait with Oman and says they are close to a deal. But Trump responded to those negotiations with a threat to bomb the Gulf state, a longstanding U.S. security partner. In a glimmer of hope for diplomacy though, media reports said Trump had opened back-channel discussions with the Islamic Revolutionary Guard Corps. U.S. crude oil stockpiles were expected to have fallen last week alongside product inventories, a preliminary Reuters poll showed on Monday. (You can now subscribe to our ETMarkets WhatsApp channel) (What's moving Sensex and Nifty Track latest market news, stock tips, Budget 2025, Share Market on Budget 2025 and expert advice, on ETMarkets. Also, ETMarkets.com is now on Telegram. For fastest news alerts on financial markets, investment strategies and stocks alerts, subscribe to our Telegram feeds .) Subscribe to ET Prime and read the Economic Times ePaper Online.and Sensex Today. Top Trending Stocks: SBI Share Price, Axis Bank Share Price, HDFC Bank Share Price, Infosys Share Price, Wipro Share Price, NTPC Share Price (You can now subscribe to our ETMarkets WhatsApp channel) (What's moving Sensex and Nifty Track latest market news, stock tips, Budget 2025, Share Market on Budget 2025 and expert advice, on ETMarkets. Also, ETMarkets.com is now on Telegram. For fastest news alerts on financial markets, investment strategies and stocks alerts, subscribe to our Telegram feeds .) Subscribe to ET Prime and read the Economic Times ePaper Online.and Sensex Today. Top Trending Stocks: SBI Share Price, Axis Bank Share Price, HDFC Bank Share Price, Infosys Share Price, Wipro Share Price, NTPC Share Price

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  • SECTIONS Oil climbs as fading US-Iran peace hopes raise supply risks ReutersBy SECTIONS Oil climbs as fading US-Iran peace hopes raise supply risks Reuters

    Iran will shift to a "fully offensive" military posture because efforts to negotiate a permanent end to the war with the U.S. have stalled, a senior Iranian official told Reuters on Monday, as Washington ruled out extending a temporary ceasefire agreement. Outward progress toward

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TEHRAN: Iran's armed forces on Wednesday (Aug 19) warned Gulf countries against assisting the United States military, saying it would be tantamount to joining American military operations. "We wish to warn that any assistance or facilitation provided to the aggressor US military amounts to participation in the US military operation," armed forces chief of staff Ali Abdollahi said, according to Iran's Mehr news agency.

War between Iran and the US broke out on Feb 28 after US-Israeli attacks on the Islamic Republic, which retaliated with missile and drone strikes including on US bases across the region. "It seems unlikely that such a large number of military aircraft, particularly refuelling aircraft, could be present at regional bases without knowledge of host countries," said Abdollahi.

"The countries bordering the Persian Gulf, which have issued various statements saying they would not allow the US to use their territory against Iran, should know that we are fully aware of the situation." The warning comes as the USS George Washington aircraft carrier is being redeployed to the Middle East to relieve the USS Abraham Lincoln following reports of deteriorating living conditions for its crew.

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FTSE 100 Live: Stocks to fall as oil jumps after Trump claims Strait of Hormuz Welcome back to the City AM liveblog. Oil prices are surging higher for the fourth consecutive session after Donald Trump declared the Strait of Hormuz as US territory. Brent crude – the international benchmark for oil prices – was climbing towards $92 as there was little indication the narrow waterway was to be reopened, keeping pressure on supply.

It comes after Trump shared a crude map of the Middle East with a large blue circle over Hormuz on Truth Social as he declared the vital shipping route as “NEW US territory”. “The Naval Blockade remains in full force and effect”, the President said.

“The Hormuz Strait is open and operating. All water mines have been removed or detonated”. Concerns around shipping through the strait has remained high despite Trump’s claim that the waterway is open and mines have been cleared. Limited traffic has continued to pass through the strategic route while Iranian forces have intensified hostilities.

Eight attacks on vessels transiting Hormuz, including ships linked to the UAE and Saudi Arabia, have been reported so far this month. In the US, crude inventories have fallen by 328,000 barrels over last week, following an over 9m barrel increase in the previous week.

Trump confirmed earlier this week that there are “no talks or conversations going on, or scheduled” with Iran. Meanwhile his US Special Envoy Jared Kushner, who is also the President’s son-in-law, said Iran is ”not showing any interest” in a deal proposed by the Trump administration.

We’ll be bringing you all the latest analysis and updates.

Location: Strait of Hormuz