• Brent crude prices surge over $4 per barrel amid uncertainty over Iran's attendance at critical U.S. talks, with a ceasefire deadline approaching.
  • Escalating tensions disrupt key oil supply routes like the Strait of Hormuz, amplifying fears of a supply crunch despite some U.S. inventory builds.
  • Global oil markets remain volatile, with disruptions since late February driving prices up over 30% year-to-date, as Brent nears $100 on renewed conflict risks.

Oil futures are surging as Brent crude prices climb about $4 per barrel, reflecting escalating tensions that threaten to disrupt oil supply routes like the Strait of Hormuz. The latest spike comes as uncertainty mounts over Iran's decision to attend talks with the U.S., with a ceasefire deadline ticking down and no clear path forward.

Brent crude futures rose 5.1% to $94.99 a barrel after a U.S. seizure of an Iranian ship and halted traffic through the Strait of Hormuz fueled fears of a ceasefire collapse. Efforts to restructure diplomatic engagements have hit a snag, with talks now delayed to Wednesday, according to people familiar with the matter. President Trump has signaled no extension beyond the two-week truce, adding pressure on negotiators. Vice President JD Vance recently confirmed that prior negotiations in Islamabad ended in deadlock, setting a tense backdrop for the current round.

"Without a deal, the region could see a rapid escalation," one analyst noted, pointing to the Strait of Hormuz closure affecting 20% of world energy supplies. This amplifies supply fears even as some U.S. inventory builds offer a slight buffer. Stock futures have swung with peace hopes, as seen in earlier drops below $100 on deal optimism, but the latest developments have traders bracing for more volatility.

Oman-mediated talks have shown "positive ideas" but stall on nuclear issues and Iran's stance on the Strait of Hormuz, sources say. Trump has prioritized diplomacy yet warns of military options, while Iran calls discussions "serious" but rejects direct U.S. engagement, heightening bilateral strain. U.S. actions like ship seizures underscore enforcement of sanctions, with no immediate comment from Iranian officials when reached for input.

In the short term, Brent could hit $100 if the deadline passes without a deal, per analysts at ICIS, who note position adjustments ahead. The long-term outlook includes risks of prolonged disruptions if conflict reignites, affecting energy importers facing higher fuel costs and exporters like Saudi Arabia gaining but risking escalation. WTI mirrors Brent at $88.18, up 5.16%, with earlier failed Islamabad talks having spiked prices 7-8% to over $102 for Brent.

As the deadline looms, markets remain jittery over supply chokepoints impacting global trade, with diplomacy seen as key to averting further spikes. Updates will follow as more details emerge on Iran's attendance and any last-minute breakthroughs.