Oil prices climbed amid faltering diplomacy between the United States and Iran, as a stalemate over the Strait of Hormuz and Iran’s nuclear program kept energy markets on edge and renewed fears of wider regional escalation.
Diplomatic deadlock and an Iranian proposal
Iran offered to lift its chokehold on the Strait of Hormuz if the U.S. ended its naval blockade, but the proposal reportedly did not include any immediate concessions on Tehran’s nuclear program. Pakistani intermediaries passed the offer to Washington; the White House said it would not “negotiate through the press.” President Trump canceled a planned envoy trip to Pakistan and insisted the U.S. “has all the cards,” while his team reviewed the proposal.
Iranian officials framed talks as constrained by U.S. “excessive demands” and said Washington can no longer “dictate” to other nations. Tehran’s foreign minister Abbas Araghchi toured Pakistan, Oman and Russia to consult with mediators and allies; he described a “very good” meeting with Vladimir Putin. Russia’s state media reported Putin praising Iran’s resistance and pledging support for peace efforts; Moscow also signaled continued strategic and intelligence cooperation with Tehran.
U.S. response and nuclear concerns
The Trump administration has repeatedly insisted any deal must address Iran’s nuclear ambitions. Secretary of State Marco Rubio said preventing Iran from obtaining a nuclear weapon “remains the core issue,” warning against agreements that merely buy time. At the U.N. review conference of the Nuclear Nonproliferation Treaty, U.S. and Iranian representatives clashed over Iran’s election as a vice president of the meeting; the U.S. accused Iran of contempt for treaty commitments, while Iran called the allegations politically motivated.
Regional and international reactions
Dozens of nations, led by Bahrain, urged reopening the Strait of Hormuz. U.N. Secretary-General António Guterres warned that disruptions to maritime traffic and energy supplies were cascading into humanitarian strain worldwide. France criticized parties on all sides for actions that flout international law but held Iran responsible for impeding the strait. Germany’s chancellor said the U.S. has been “humiliated” by Iranian leadership, citing the lack of a clear exit strategy from the conflict.
Iran’s U.N. ambassador told the Security Council that credible guarantees against future attacks are needed before lasting Gulf stability can be achieved, calling for a durable cessation of aggression against Iran.
Security, sanctions and military posture
The U.S. expanded its blockade of Iranian-linked and sanctioned vessels in mid-April, and Treasury officials warned foreign governments and companies against doing business with sanctioned Iranian airlines, citing potential exposure to U.S. penalties.
On Capitol Hill, Defense Secretary Pete Hegseth and Gen. Dan Caine met lawmakers to discuss the Pentagon’s budget and potential supplemental funding related to the Iran war. Meanwhile, Russia’s growing support for Iran and reports of Russian intelligence assistance to Tehran raised alarm among Western officials.
Casualties, attacks and related violence
Death tolls from the broader conflict continue to rise. Iran revised downward the reported fatalities from an elementary school strike in Minab to 155, after earlier reports exceeded 175; Iranian state media said 73 boys and 47 girls were among the dead, along with teachers, parents and clinic staff. U.S. media reported a preliminary U.S. military investigation suggesting a Tomahawk cruise missile may have hit the school by mistake, an account that fed Iranian accusations that the attack was deliberate. Iran’s foreign minister called the school strike a “calculated, phased assault.”
The Israel-Lebanon front remains volatile. Israel announced new strikes in Lebanon, including operations against Hezbollah infrastructure, after cross-border drone and rocket activity. Lebanon’s health ministry said 14 people were killed by Israeli strikes on one recent day; Hezbollah’s leadership rejected U.S.-brokered negotiations between Israel and Lebanon, further undermining ceasefire prospects.
Regional humanitarian concerns and displacement
Analysts warned that Iran’s internal instability and the wider regional conflict could trigger refugee flows into neighboring countries such as Armenia. Observers noted anxiety along the Iran-Armenia border and the potential for further displacement if the war intensifies.
Economic and market impacts
Disruptions through the Strait of Hormuz and uncertainty over diplomacy sent oil prices higher. Brent crude jumped to about $108 a barrel at one point, and U.S. West Texas Intermediate approached $97, after sharp weekly gains the prior week. Markets reacted to the collapse of hopes for immediate U.S.-Iran talks and to ongoing restrictions on shipping. GasBuddy reported average U.S. gasoline prices rose 7 cents in the past week, reaching $4.04 per gallon, with 39 states seeing price increases. Analysts warned that higher oil for longer could pressure inflation and weigh on economic growth.
Supply chains and secondary effects
The closure and disruption of shipping routes have affected petrochemical feedstocks. South Korea launched investigations into companies suspected of hoarding medical syringes after naphtha shortages—naphtha being a key oil-derived feedstock—threatened production of plastic medical supplies. Seoul banned excessive stockpiling of syringes and increased inspections to prevent price gouging. The South Korean government also secured additional naphtha shipments via routes that avoid the Strait of Hormuz.
Other developments and signals
– A luxury superyacht linked to a sanctioned Russian oligarch transited the Strait of Hormuz, illustrating complexities in maritime movements amid expanded naval restrictions.
– Russia’s president sent well wishes to Iran’s new supreme leader and received messages attributed to him; Iran’s leadership situation and reports of injuries to figures in Tehran remain sensitive and contested.
– The U.N. nuclear review conference heard dire warnings that drivers of proliferation are accelerating and that the NPT’s credibility is under strain.
Outlook
Diplomacy remains stalled: Iran’s offer to reopen the strait without immediate nuclear concessions faces U.S. resistance focused on rolling back Tehran’s nuclear capabilities, while Iran demands guarantees against further attacks and an end to U.S. blockades. With major powers and regional actors lining up behind opposing priorities and with the Strait of Hormuz still constrained, energy markets and humanitarian conditions are likely to remain under pressure until substantive, verifiable agreements are reached or hostilities de-escalate.