A temporary U.S.-Iran ceasefire sparked a broad relief rally across assets on Wednesday, but experts warned that any deal concerning lasting peace will be complicated by a major trust deficit.

The ceasefire came following hastened diplomatic efforts led by Pakistan and just hours before Trump’s threatened deadline for wiping out the entire Iranian civilization, briefly pulling the region back from the brink of a massive military bombardment.

Oil prices cooled to below $100 per barrel following the ceasefire announcement, but remain far above the pre-war levels of around $70 per barrel.

While U.S. President Donald Trump said the two-week ceasefire was contingent on the “complete, immediate, and safe opening” of the Strait of Hormuz, Iranian officials stated that safe passage through the strait would be “possible,” subject to coordination with its armed forces and “technical limitations” — caveats that may give Iran some room to define compliance on its own terms.

“This is a problem that could derail the ceasefire later this year,” said Matt Gertken, chief geopolitical strategist at BCA Research, warning that the coordination requirement remains a risky ambiguity in both sides’ statements so far.

Trump may temporarily accept Iran as a gatekeeper — with U.S. midterm elections approaching and gasoline prices sharply higher than before the war — but after the election, the U.S. national security establishment will start to demand a more permanent solution,” said Gertken. “Fighting will ignite later this year, if not later this month.”

Tehran also said that its armed forces will cease defensive operations if attacks against Iran are halted. After the ceasefire came into effect at 8 p.m. ET Tuesday, missiles were still launched from Iran towards Israel and several Gulf states.

The reprieve on Tuesday would allow some time for the two sides to reach a longer agreement to end the six-week-old war, which has killed thousands of people and sparked a global energy crisis, with their delegations expected to meet in Islamabad on Friday.

Iran is reportedly finalizing a joint maritime protocol with Oman to institutionalize coordinated management of tanker traffic through the strait, which could embed Iranian authority over the crucial energy artery into a standing bilateral agreement.

Israel agreed to suspend strikes but urged Washington to press for deeper Iranian concessions, including the surrender of enriched uranium stockpiles. In its 10-point terms, Iran requested Washington to accept its uranium enrichment program and the lifting of all sanctions.

The ceasefire will likely hold in the near term, given the economic costs accruing to the global economy from six weeks of conflict, said Michael Langham, emerging markets economist at Aberdeen Investments. “Parties with vested interest in stopping the conflict and reopening the strait will double down on efforts to find a compromise,” he said.

If the truce holds and the strait reopens, the global economic damage should prove manageable, Langham added. Central banks could broadly resume their pre-conflict paths — and attention may shift from inflation to growth, if commodity prices normalize quickly, he added.

The ceasefire sparked a relief rally in markets amid repricing for a de-escalation in the conflict, but investors will watch for something more durable than a two-week pause, Geoff Yu, senior market strategist at BNY, said on CNBC’s “Squawk Box Asia” on Wednesday.

“What the market is going to start pricing ahead is a first step towards further de-escalation and perhaps something more permanent,” he said, flagging that the disruption has extended beyond crude oil to commodities such as helium, critical to semiconductor manufacturers in South Korea and Taiwan.

U.S. President Donald Trump on Thursday threatened to destroy Iran’s bridges and power plants, saying the “New Regime leadership knows what has to be done, and has to be done, FAST!” in a Truth Social post.

Trump did not elaborate on what needed to be “done,” but said the U.S. “hasn’t even started destroying what’s left in Iran.”

Hours later, Iran’s semi-official Tasnim news agency reportedly claimed that a U.S. F-35 fighter jet was shot down over central Iran. Images of the jet were posted on Telegram, with one photo that appeared to show the words “U.S. Air Forces in Europe” on what appeared to be the tail section of a plane.

The U.S. Central Command, which oversees the region, and Iranian authorities did not respond to a request for comment at the time of publication.

Trump’s latest threat came a day after a nationwide address in which he said the U.S. military would hit Iran “extremely hard” for the next two or three weeks. He added that the U.S. would “bring them back to the Stone Ages where they belong.”

Hours after his speech, Iranian Foreign Minister Abbas Araghchi struck a defiant tone on X, saying that “there was no oil or gas being pumped in the Middle East back then,” referring to Trump’s stone age remarks.

“Are POTUS and Americans who put him in office sure that they want to turn back the clock?” Araghchi said.

Iran has effectively shut tanker traffic through the Strait of Hormuz, a vital global oil route, after the U.S. and Israel attacked the country on Feb. 28.

Trump has repeatedly threatened to send Iran back to the “stone age” as the war entered its second month and the U.S. military build-up in the Middle East showed no signs of slowing.

Despite reports of overtures from the U.S., including ceasefires and a 15-point peace plan to end the war, Iran has publicly contradicted multiple reports about negotiations with the Trump administration on numerous occasions.

Tehran had described the 15-point proposal as “extremely maximalist and unreasonable,” according to an Al Jazeera report on March 25, citing a high-ranking diplomatic source.

Trump said Wednesday that Iran’s “New Regime President” had asked Washington for a ceasefire, a claim that Tehran has denied. Trump has not specified who the “President” is.

“We will consider when Hormuz Strait is open, free, and clear. Until then, we are blasting Iran into oblivion or, as they say, back to the Stone Ages!!!,” he wrote.

Attacks on power plants could constitute a war crime and violate international law, legal experts said.

In a letter dated Thursday and signed by over 100 law experts, the group said international law prohibits attacks on “objects indispensable to the survival of civilians, and the attacks threatened by Trump, if implemented, could entail war crimes.”

Trump had also earlier said that he could target water desalination plants in Iran.

The Gulf Cooperation Council on Thursday called on the United Nations Security Council to take “all necessary measures to ensure the immediate cessation of Iranian aggressions against the Council states.”

The six countries in the Gulf Cooperation Council — Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates — have come under attack from Iranian missiles and drones as the war entered its second month.

The Kuwait Petroleum Corporation said that its Mina al-Ahmadi refinery was hit by drones early on Friday.

Jassim Albudaiwi, Secretary-General of the Gulf Cooperation Council, said that while the bloc does not seek war, Iran had “exceeded all red lines” and described Tehran’s attacks as “treacherous.”

Bahrain, the current rotating president of the Security Council, has led an effort to pass a U.N. resolution to ​authorize “all necessary means” to protect commercial shipping in and around the Strait of Hormuz.

But the proposal reportedly stalled after veto-wielding Security Council members China, Russia and France objected to the draft resolution, which would have authorized military action against Iran.

The sprawling Middle East crisis is expected to spur drivers to abandon traditional internal combustion engine vehicles in favor of EVs, analysts told CNBC, although early evidence suggests this will be a gradual gearshift.

The Iran war has severely disrupted oil exports through the strategically vital Strait of Hormuz, which typically carries about a fifth of the world’s oil and liquified natural gas (LNG). It has underlined the extent to which the world remains deeply reliant on fragile fossil fuel trade routes, while surging oil and gas prices have jolted energy markets and triggered widespread inflation fears.

Various car-selling platforms in the U.S. and Europe have reported a sharp increase in consumer interest for EVs since the war began in late February. The burgeoning trend comes even as a large chunk of the legacy car industry pivots back to internal combustion engine (ICE) vehicles.

Autotrader, an online vehicles marketplace, reported on March 26 a 28% jump in inquiries about buying a new EV and a 15% increase in inquiries about buying a used one, since the war in Iran started on Feb. 28. EV specialist Octopus Electric Vehicles said on March 25 it had seen EV leasing inquiries rise 36% since the start of the conflict.

But U.S. automakers Ford Motor, General Motors and Jeep owner Stellantis have all reversed course on EV strategies, booking tens of billions of dollars in combined write-offs and restructuring costs, in part due to lackluster consumer demand and shifting political landscapes.

Steffen Michulski, senior consultant at JATO Dynamics, said that while the situation is still evolving, it was already clear that the fallout from the Iran war could influence EV demand.

Owning a battery electric vehicle (BEV) has become more compelling for drivers covering a lot of mileage, Michulski said, given that a sharp rise in oil prices has made conventional gasoline cars much more expensive.

Switching to an EV may also provide households with an extra layer of energy independence, Michulski said, although he cautioned that it would be important not to “oversimplify” the situation. He pointed out that the overall economic environment may soften if inflation and supply chain costs continue to rise, for example, with these broader pressures impacting all powertrains — electric or combustion.

“To shorten and summarize it: Yes, elevated oil prices and the renewed focus on energy security are likely to provide a mid term boost to BEV demand,” Michulski told CNBC by email.

“But this is best understood as an incremental shift rather than a sudden market wide acceleration. Electricity price risks, technological progress on the combustion side, and general economic uncertainty all act as counterweights,” he added.

An analysis published by Transport & Environment earlier this month found that electric cars were already cutting the European Union’s oil imports, noting that the nearly 8 million EVs in the EU will save the bloc around 46 million barrels of oil in 2025. That’s the equivalent of almost 3 billion euros ($3.45 billion) in avoided oil import costs.

In the context of the Middle East conflict, meanwhile, the analysis said that petrol drivers were expected to be five times more exposed to higher oil prices than EV owners.

Poliscanova said EV growth drivers in Asia, notably Vietnam, Thailand and Indonesia, which all benefit from affordable models by Chinese car manufacturers, were all likely to see an accelerated shift away from fossil fuels.

“We’re likely to see an even faster shift in some of these economies away from oil, meaning that we in Europe today, still discussing things like biofuels and hybrids, just look really stupid and detached from the reality,” Poliscanova said.

A spokesperson for the European Commission, the EU’s executive arm, declined to comment.

“The hard part is done,” President Donald Trump said in his address to the nation Wednesday night about the Iran war. The recent jump in gas prices is “short term increase” that should “will rapidly come back down” once the vital Strait of Hormuz is reopened, he said.

But there is reason to worry that the conflict and its economic consequences for Americans may get worse before they get better. If so, Trump will struggle to shake off the damaging political legacy of the war.

In that he would join a long line of U.S. presidents going back to the 1970s who have seen their tenures defined by energy crisis and inflation — the economic scourge Trump has called a “nation-buster.” 

“The oil shock of the ’70s was planted in the maybe subterranean part of our brains,” said Jay Hakes, a presidential historian who led the U.S. Energy Information Administration in the 1990s during the Clinton administration. 

“It was there for a long time because it was just such a jolt. And I think this will be that kind of jolt,” Hakes said.

Gas prices on Tuesday rose above $4 a gallon on average for the first time since the war began. Gas has followed Brent crude prices that have risen 27% since the war began to just over $100 a barrel Wednesday. Oil tankers and other commercial shippers that would normally travel through the narrow Strait of Hormuz off Iran’s southern coast have been idled due to Iran’s threats and attacks. The waterway normally carries 20% of the world’s oil. 

But $4 a gallon gas, painful as it is, may only be the tip of the iceberg. That is clearer in the rest of the world than the U.S., for now. The U.K. is set to receive its last shipment of jet fuel for the foreseeable future this week. Prices of jet fuel worldwide are up 96%, according to Platts data published by the International Air Transport Association. Futures contracts for liquid natural gas in Japan and South Korea are up 43%, according to FactSet data. 

Asia and to a lesser extent Europe are more immediately exposed to disruptions in supply from the Strait of Hormuz. Unlike the U.S. — as Trump has repeatedly pointed out — they buy directly from the Middle East. But all of these commodities are connected through global markets. Disruptions in one part of the world will quickly spread to others. Analysts fear the price of oil could jump above the record near $150 a barrel set in July 2008 during the Great Recession.

So far, the world has benefited from energy supplies that were already in transit when the war began just over a month ago, aided by emergency releases from strategic petroleum reserves. But the world is burning through those supplies. 

“With even the modest estimates we have now, the loss of oil in April will be twice the loss of oil in March,” International Energy Agency Executive Director Fatih Birol said on a podcast released Wednesday.

Governments around the world are trying to encourage energy conservation in the face the crisis. A tracker from the IEA shows 26 governments have taken steps such as Pakistan lowering the speed limit.

Trump has taken steps to encourage the market to improve supply but has stopped short of calling on Americans to try to conserve energy. Doing so might call back uncomfortable comparisons to President Jimmy Carter’s attempts after the 1979 crisis, which began with the Iranian Revolution. Ronald Reagan turned Carter’s calls for consumers to limit themselves into a potent political weapon, winning him the presidency the next year. 

And Trump has spent part of his terms in the White House calling for limits on construction of and subsidies for renewable energy production.

The politics of energy have taken a toll on the nation. “We’ve lost our ability to ask the American public to sacrifice,” Hakes said. 

Before Carter, presidents — including Republicans — called on a need for shared sacrifice. President Richard Nixon proposed a national speed limit of 55 miles per hour following the Arab Oil Embargo of 1973. It was passed into law the next year, but even before that Nixon urged people to slow down, “and they did,” Hakes said. 

“We still had a little bit of the World War II mentality,” Hakes said. 

The energy crises of the 1970s put the nail in the coffin of that mentality. Nixon and Carter struggled to lower prices, and inflation surged. Carter put Paul Volcker in place as Federal Reserve chair to tackle inflation — which he eventually did, but only by raising interest rates high enough to prompt a recession, followed by record-high mortgage rates. Carter, of course, wasn’t re-elected.

Americans’ sense of what government can and should do was permanently changed.

“The failure of the nation’s politicians to address the energy crisis contributed to the erosion of faith that Americans had in their government to solve the problems,” Princeton University historian Meg Jacobs wrote in “Panic at the Pump: The Energy Crisis and the Transformation of American Politics in the 1970s.”

“If the Vietnam war and Watergate scandal taught Americans that their presidents lied, the energy crisis showed them that their government didn’t work,” Jacobs wrote.

Today, Trump’s premise as president is that government only works when he is in charge. “Nobody knows the system better than me, which is why I alone can fix it,” he said at the 2016 Republican National Convention. He has centralized control of the executive branch in the Oval Office, drawing power from cabinet secretaries and agencies that previously operated autonomously. 

The worst-case worries may not come to pass. The U.S. could quickly force Iran to capitulate, and the global economy could heal fast, as it did after the shock of the Russian invasion of Ukraine. But if not, Trump’s decision to go to war in Iran may only deepen many Americans’ alienation from their government. And as the sole decider atop the federal bureaucracy, Trump will have a difficult time convincing the public that anyone but him bears responsibility. 

U.S. President Donald Trump said Monday that the U.S. will “completely” obliterate Iran’s electric generating plants, oil wells and Kharg Island if the strategically vital Strait of Hormuz is not “immediately” reopened and a peace deal is not reached “shortly.”

“The United States of America is in serious discussions with A NEW, AND MORE REASONABLE, REGIME to end our Military Operations in Iran,” Trump said in a post on Truth Social.

“Great progress has been made but, if for any reason a deal is not shortly reached, which it probably will be, and if the Hormuz Strait is not immediately “Open for Business,” we will conclude our lovely “stay” in Iran by blowing up and completely obliterating all of their Electric Generating Plants, Oil Wells and Kharg Island (and possibly all desalinization plants!), which we have purposefully not yet “touched.””

His comments come as the Iran war enters its fifth week and as the Trump administration weighs sending in ground forces to seize Kharg Island, a major fuel hub which serves as the centerpiece for Iran’s oil industry.

It is estimated that around 90% of the country’s crude exports pass through it before tankers then travel through the Strait of Hormuz. The island is also said to have a loading capacity of roughly 7 million barrels per day.

Iran has not yet commented on Trump’s latest remarks. Earlier in the day, a spokesperson for Iran’s Foreign Ministry reportedly said Iran deemed proposals presented in a 15-point plan from the U.S. as “excessive and unreasonable.” Iran’s leaders have denied being in direct talks with the U.S.

Shipping traffic through the Strait of Hormuz has virtually ground to a halt since the U.S. and Israel launched strikes against Iran on Feb. 28. Iran has retaliated by targeting ships trying to pass through the maritime corridor, with several incidents reported in recent weeks.

Trump said last week that he would pause attacks on Iran’s energy plants for 10 days, which pushed the deadline to April 6.

Oil prices traded higher on Monday, with international benchmark Brent crude on track to notch its steepest monthly rise on record.

The clock is ticking on the U.S.-Israeli war in Iran. The emerging view from oil industry executives and analysts is that the economic and market fallout from the war could escalate sharply if the Strait of Hormuz isn’t reopened within roughly the next one to three weeks. Even then, enough damage may have been done already to leave energy and many other prices higher for longer. 

These risks haven’t been clearly reflected in some widely followed markets, including stocks broadly and the benchmark Brent crude price. Stopgap measures to soften the blow of the oil cutoff have kept crude prices relatively low in the U.S. and European markets. But when those measures lose their effectiveness in early-to-mid April, analysts warn there will be little the U.S. or other governments can do to keep energy prices from rising dramatically. 

Iran has attacked civilian ships and energy infrastructure in its neighborhood, causing traffic in the narrow Strait of Hormuz to fall to a standstill. Roughly 20% of global oil supply normally moves through the approximately 100-mile waterway, which borders Iran. Some oil has been rerouted through pipelines, but they can only carry so much. The U.S. and others are releasing 400 million barrels of oil from strategic reserves — the biggest release on record — and the U.S. has temporarily lifted sanctions on some Russian and Iranian oil to give the market breathing room.

The White House says it believes the president’s military strategy will soon end the Iranian threat, allowing the price worries to fade.

But all agree there is no substitute for reopening the strait. Oil industry executives have in the past few days sketched out the risk of growing disruption from the war. 

“There are very real, physical manifestations of the closure of the Strait of Hormuz that are working their way around the world,” Chevron CEO Mike Wirth said Monday at S&P Global’s CERAWeek in Houston. Shell CEO Wael Sawan echoed him a few days later at the annual gathering of industry heavyweights. Disruptions that started in South Asia have “moved to Southeast Asia, Northeast Asia and then more so into Europe as we get into April,” Sawan said Wednesday.

The talk of the conference was the difference between so-called paper and physical prices, said Ben Cahill, director for energy markets and policy at the Center for Energy and Environmental Systems Analysis, University of Texas at Austin. 

Paper prices reflect trading in financial markets and are often the headline oil prices discussed in the press. They have generally remained lower than prices for physical delivery of oil, especially in Asia, which is the main buyer of crude from the Middle East.

Brent crude futures prices rose 36% from Feb. 27, the last day of trading before the started, through March 27, when they traded above $113 a barrel. But the Dubai price, which tracks physical delivery from certain Middle East sellers, is up 76%, more than twice the paper price, at $126. That price has been especially volatile lately. 

One reason paper prices are lower is they have regularly fallen in reaction to suggestions by President Donald Trump that the war could soon end or otherwise de-escalate. Traders call that “jawboning.” 

The looming possibility of physical supply shortages in the oil market appears to be blunting the effect of Trump’s jawboning. Financial markets reflect the reality that Trump has often managed to avoid worst-case scenarios, including when he attacked Iran’s nuclear program in June. Oil futures then spiked but quickly fell once it was clear the war wouldn’t spread. 

Goldman Sachs’ senior chairman and ex-CEO Lloyd Blankfein has warned that the damage from the Iran war “is going to last,” even if there were “a resolution tomorrow” — and urged investors to prioritize contingency planning amid the turmoil.

Speaking with CNBC’s Steve Sedgwick on Wednesday, Blankfein suggested that certain parts of the market may be too complacent in their approach to the conflict, adding that it’s equally dangerous to trade on the basis that “all will be resolved” as it is to say it will “never be resolved.”

“People know that, even if it stopped tomorrow, there’s so much damage to the infrastructure that the stress is going to last longer anyway, even if there was a resolution tomorrow, and there’s no reason to think there’s a resolution tomorrow,” he said of the Middle East war.

U.S. and Israeli strikes on Iran on Feb. 28 escalated into a regional war in which Iran has targeted energy infrastructure in neighboring countries, and traffic through the Strait of Hormuz, a crucial waterway for oil and gas, has been severely disrupted.

Blankfein pointed to the wild swings in energy markets in recent weeks as investors have sought to navigate the fallout from the conflict and price in the lasting impact from disrupted global oil supplies. Against this backdrop, he said investors should eschew conviction trades in favor of a more cautious approach, and “be very fleet of foot and very protective” of their positions.

“You could put on hedges, and those hedges could be worthless tomorrow, if things go another way,” Blankfein said. “I think people should be good contingency planners at this time.”

In a wide-ranging interview, Blankfein — who as CEO steered Goldman through the 2008 Global Financial Crisis — also reflected on the broader fiscal picture in the U.S. as well as potential risks arising from private markets.

He said the investment backdrop before the war in Iran was “more tailwinds than headwinds,” pointing to solid growth and a lower interest rate trajectory. “That’s all been made secondary or tertiary to what’s going on in the war and the price of energy,” he said.

Meanwhile, he said questions remain over the accuracy of valuation marks in private market funds’ portfolios, adding that assets have not been tested as equity markets have risen.

“There has to be a reckoning — we haven’t had one, and the longer between reckonings, the worse it could potentially be,” he added.

A trio of European energy CEOs has sounded a warning over energy supplies, amid the ongoing conflict in Iran and restricted access through the strategically vital Strait of Hormuz.

Amid volatile trade, crude prices have surged around 40% in recent weeks, at one point approaching $120 a barrel as investors raised concerns over a potential lack of supply.

Those concerns have been felt particularly in Asian countries so far, with the Philippines announcing an energy emergency, while South Korea says it is preparing for “worst-case scenarios.”

Japan’s Prime Minister Sanae Takaichi has asked the International Energy Agency to consider an additional release from global crude stockpiles, with the global energy watchdog having already coordinated the release of 400 million barrels of oil amongst member countries.

Japan will release national stockpiles on Thursday, with Takaichi confirming Tokyo will access the IEA stockpiles toward the end of the month.

But now there are fears the supply concerns will move westward.

“South Asia was first to get that brunt. That’s moved to Southeast Asia, Northeast Asia and then more so into Europe as we get into April,” Shell CEO Wael Sawan said at CERAWeek in Houston, Texas.

Sawan warned governments not to take actions that could magnify the impact of supply disruptions, adding that you cannot have “national security without energy security.”

Governments across Europe have already started introducing measures to shield households from rising energy costs.

Slovenia became the first country in Europe to introduce fuel rationing, Spain approved a 5-billion-euro ($5.8 billion) aid package, which included tax reductions on electricity and gas, as well as subsidies for transport operators, farmers and for the purchase of fertilizers.

European Union leaders have also discussed temporary measures to mitigate the impact of rising energy prices.

TotalEnergies CEO Patrick Pouyanné said the current oil products market is “dislocated,” telling CNBC that this is why “you see the impact in many countries, in Europe, on the gasoline price, diesel price, people being very unhappy.”

President Donald Trump said in a Truth Social post Monday that, following talks with Iranian authorities, he ordered the U.S. military to postpone strikes on Iran’s power plants and energy infrastructure for five days.

He told CNBC’s Joe Kernen in a phone call shortly after the post that “we are very intent on making a deal with Iran.”

However, Iranian state media, citing an unnamed “senior security official” in a post on Telegram disputed Trump’s description of conversations, saying direct or indirect talks have not taken place between Washington and Tehran.

“There is been no negotiation and there is no negotiation, and with this kind of psychological warfare, neither the Strait of Hormuz will return to its pre-war conditions nor will there be peace in the energy markets,” state media reported the official as saying.

Trump countered later Monday morning that the U.S. and Iran “have had very, very strong talks” yielding “major points of agreement,” including that Tehran will “never have a nuclear weapon.”

Trump, speaking to reporters in Palm Beach, Florida, said his son-in-law Jared Kushner and U.S. special envoy Steve Witkoff participated in those talks Sunday evening with “a top person” in Iran.

“They want, very much to make a deal. We’d like to make a deal too,” he said. “We’re going to get together today by, probably, phone, because it’s … very hard for them to get out, I guess. But we’ll, at some point, very, very soon, meet.”

Trump said that if the five-day halt in strikes goes well, the parties could end up “settling this.”

“Otherwise, we’ll just keep bombing our little hearts out,” he said.

The president also said that he believes Israel will be “very happy” with the progress made with Iran so far.

He added that the Strait of Hormuz “will be opened very soon, if this works.”

Asked who would control the strait, Trump said it might be “jointly controlled” by himself and “whoever the ayatollah is,” suggesting that such a move would come as part of a “very serious form of regime change.”

In his Truth Social post earlier Monday, Trump said that the U.S. and Iran had “VERY GOOD AND PRODUCTIVE CONVERSATIONS REGARDING A COMPLETE AND TOTAL RESOLUTION OF OUR HOSTILITIES IN THE MIDDLE EAST.”

The U.S. president said these talks would continue through the week. It was not immediately clear who participated in the talks or when and where they were held.

U.S. stock futures rallied, the dollar fell against other major currencies, and oil prices tumbled on the news.

Speaking with Kernen, Trump said discussions with Iranian authorities had been very intense and that he remains hopeful something very substantive can be achieved.

The U.S. president also insisted on the same call that what is unfolding in Iran can be described as regime change, Kernen reported.

The White House did not immediately respond to CNBC’s request for additional information about the purported talks, and did not immediately respond to Iran’s claim that no such negotiations are underway.

The U.S. president on Saturday issued a 48-hour ultimatum to Tehran to reopen the Strait of Hormuz or face strikes on Iran’s power plants.

The narrow waterway is a key maritime corridor that connects the Persian Gulf and the Gulf of Oman. Roughly 20% of global oil and gas typically passes through it.

The deadline had been due to expire on Monday evening in Washington.

Iranian Parliament spokesperson Mohammad Baqer Qalibaf had said critical infrastructure and energy facilities in the Persian Gulf region could be “irreversibly destroyed” should Iranian power plants be attacked.

Shipping traffic through the Strait of Hormuz has virtually ground to a halt since the U.S. and Israel launched airstrikes on Iran on Feb. 28. Iran has retaliated by targeting ships trying to pass through the strait, with several incidents reported in recent weeks.

The Iran war has stoked global inflation fears and created what the International Energy Agency calls the largest supply disruption in the history of the oil market.

— CNBC’s Anniek Bao contributed to this report.

Supply measures alone won’t be enough to mitigate “the largest supply disruption in the history of the global oil market” amid an escalating conflict in the Middle East, the International Energy Agency warned on Friday.

Instead of waiting for disrupted production to recover, lowering demand could ease pressure on consumers and help bring prices down more quickly.

Minimizing road and air transport, working from home where possible, and switching to electric cooking could significantly help cushion the shock for consumers, the agency said.

Heightened geopolitical risk has rattled traders, sending not only crude prices higher but also sharply increasing costs for refined products such as diesel and jet fuel, which directly impact transportation, logistics and consumer prices.

Oil prices have surged more than 40% since the start of the U.S.-Iran war on Feb. 28, reaching their highest levels since 2022 as supply has been severely disrupted, mostly due to the effective closure of the Strait of Hormuz. 

The strait is a narrow maritime corridor off Iran’s coast that connects the Persian Gulf and the Gulf of Oman and normally carries about a fifth of global oil consumption. 

Countries have already begun tapping strategic petroleum reserves, with hundreds of millions of barrels slated for release. 

The IEA last week agreed to release 400 million barrels of oil to address the supply disruption triggered by the Iran war — the largest such action in the organization’s history — without providing a timeline for when the stocks would enter the market. 

“Addressing demand is a critical and immediate tool to reduce pressure [on] consumers by improving affordability and supporting energy security,” the IAE said Friday, as it laid out a range of measures that can be taken by households and businesses to lower demand.

Among the most impactful steps are encouraging remote work where possible, increasing carpooling and public transit use, and cutting back on non-essential air travel.

Measures focus primarily on road transport, which accounts for around 45% of global oil demand.

Working from home where possible reduces fuel demand for commuting, while lowering speed limits, shifting from private cars to public transport, and alternating private vehicle access in cities, could further reduce congestion and fuel consumption, the agency said. 

Measures to shift liquefied petroleum gas (LPG) use away from transport and towards essential applications like cooking can also help keep prices lower, as can adopting alternative clean cooking solutions that reduce reliance on LPG.

Countries are also looking to fiscal measures to ease the pressure on consumers and prevent sharp rises in fuel prices that could add to inflationary pressures.

Spain is planning to reduce the value-added-tax (VAT) on fuel to 10% from 21%, according to a local media report citing sources familiar with the matter. The government will also eliminate a 5% tax on electricity, according to the report. 

Italy on Wednesday cut excise duties on fuel, while Germany’s finance ministry has said it is looking at ways to shield consumers from rising fuel prices, such as introducing a windfall tax on oil companies. 

Early Friday, international Brent crude futures with May delivery rose 1.3% to $109.93 per barrel, while U.S. West Texas Intermediate futures with April delivery traded largely flat at $96.20.

— CNBC’s Sam Meredith contributed to this report