The International Energy Agency on Wednesday 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.

The IEA did not set out a timeline for when the stocks would hit the market. It said that the reserves would be released over a timeframe that is appropriate to the circumstances of each of its 32 member countries.

“The oil market challenges we are facing are unprecedented in scale, therefore I am very glad that IEA Member countries have responded with an emergency collective action of unprecedented size,” IEA Executive Director Fatih Birol said in a statement.

“Oil markets are global so the response to major disruptions needs to be global too,” Birol said. “Energy security is the founding mandate of the IEA, and I am pleased that IEA Members are showing strong solidarity in taking decisive action together.”

Energy analysts warned ahead of the release that even the IEA’s maximum drawdown capability would likely not be able to offset the nearly 20 million barrels per day that typically transits through the Strait of Hormuz.

The waterway is a narrow maritime corridor off Iran’s coast that connects the Persian Gulf and the Gulf of Oman. Roughly 20% of global oil and gas usually passes through it.

Oil prices have been extremely volatile since the outbreak of the Iran war on Feb. 28, with global benchmark Brent crude rallying to nearly $120 a barrel at the start of the week, before falling back below $90.

Earlier in the day, Japanese Prime Minister Sanae Takaichi said the country intended to release oil stockpiles from its national reserves as early as next week, citing an “exceptionally high level of dependence” on the Middle East.

“Without waiting for an official decision on the release of international stockpiles in cooperation with the International Energy Agency (IEA), Japan has decided to take the lead in releasing its stockpiles as early as the 16th of this month in order to ease supply and demand in the international energy market,” Takaichi told reporters, according to public broadcaster NHK.

IEA members currently hold more than 1.2 billion barrels of public emergency oil stocks, with a further 600 million barrels of industry stocks held under government obligation.

The global energy watchdog had previously released an estimated 182 million barrels of oil to support the energy market following Russia’s full-scale invasion of Ukraine in 2022.

This is a developing story. Check back for updates.

Energy Secretary Chris Wright said oil and gas prices will begin to fall when the U.S. begins to knock out Iran’s ability to hinder tanker traffic through the Strait of Hormuz, as Americans weather spiking gas prices due to the war in Iran.

“The plan is to get oil and natural gas and fertilizer and all the products from the Gulf flowing through the straits before too long,” Wright said on Fox News Sunday. “We’re massively attriting their ability to strike with missiles and drones, and that rate of attrition will increase in the coming days. So we’ll be cautious, we’ll be careful, but energy will flow soon.”

President Donald Trump was elected to a second term in the White House in part by promising to lower gas prices and defeat high inflation. He has frequently touted lower gas prices ahead of the November midterm elections, which will determine control of Congress for the remainder of his term.

But gas prices and oil have spiked since the war began in Iran, with vessel bottlenecks in the Strait of Hormuz causing the surge. About 20% of global energy supply moves through the strait.

Gas has jumped to over $3.46 per gallon on average in the U.S., according to GasBuddy. U.S. crude oil has soared to more than $91 per barrel, and the global benchmark Brent crude has spiked to over $92 per barrel.

Wright said that “one large tanker has already gone through the straits with no issues at all.” Typically, roughly 100 tankers and cargo ships move through the strait every day.

Wright said the disruption would last for “weeks, certainly not months.”

“We believe this is a small price to pay to get to a world where energy prices will return back to where they were,” Wright said. “Iran will finally be defanged, and now you can see more investment, more free flow of trade, less ability to threaten energy supplies.”

When asked about potentially tapping the U.S. Strategic Petroleum Reserve to reduce pain at the pump, Wright suggested such a move is not necessary yet. In the past, the SPR has been tapped to mitigate disruptions in oil flows.

“We’re more than happy to use [the SPR] if needed,” Wright said on CBS’s “Face the Nation.” “But … it’s a logistics issue, where do they need oil? They need oil at refineries in Europe and in Asia.”

Trump has also downplayed the option of tapping the SPR.

“We’ve got a lot of oil. Our country has a tremendous amount,” Trump told reporters aboard Air Force One on Saturday. “There’s a lot of oil out there. That’ll get healed very quickly.”

WATCH: No traffic will flow through Strait of Hormuz until a resolution with Iran: Kpler’s Matt Smith

Oil prices rose on Friday morning as investors continued to assess the impact of the U.S.-Iran war on global energy markets.

By 6:58 a.m. ET, global benchmark Brent crude futures added 4.5% to trade at $89.23 a barrel, notching a fresh 52-week high and levels not seen in nearly two years. U.S. West Texas Intermediate crude futures were last seen 6.3% higher at $86.06, hitting their highest level since April 2024.

Prices dipped overnight as investors continued to assess the impact of the U.S.-Iran war on global energy supply.

Crude prices are on track for their biggest weekly gain since Russia’s full-scale invasion of Ukraine in early 2022.

The spike comes as the U.S.-Iran conflict spreads across the Middle East, disrupting energy production and bringing traffic in the Strait of Hormuz, a critical shipping route, to a near standstill.

On Friday morning, the Financial Times reported that Qatar’s energy minister said the war in the Middle East could see Gulf energy exporters stop shipments within days. Saad al-Kaabi told the FT that crude prices could reach $150 a barrel in the coming weeks if oil tankers were unable to pass through the Strait of Hormuz.

Prices briefly dipped overnight after the U.S. issued a 30-day waiver to India — the world’s third-largest oil importer — to resume purchases of Russian oil. Washington had earlier imposed 25% “penalty” tariffs on India for buying Russian crude, which were revoked last month. The retreat in prices also came after news agency Reuters, citing an unnamed White House official, reported that the U.S. Treasury is planning to announce measures to curb energy price spikes, including potential interventions in the oil futures market.

The average price for a gallon of regular gasoline jumped nearly 27 cents since in the week to Thursday to $3.25, according to data from U.S. travel organization AAA.

The conflict between Iran and the U.S. enters its seventh day on Friday. In a press conference on Thursday, U.S. Defense Secretary Pete Hegseth said the U.S. had “only just begun to fight.”

“Iran is hoping that we cannot sustain this, which is a really bad miscalculation,” he told reporters.

“There’s no shortage of American will here … If you think you’ve seen something, just wait. The amount of combat power that’s still flowing, that’s still coming, that we’ll be able to project over Iran is at multiples of what it currently is right now when you add up our capabilities and those of the Israeli Defense Forces.”

“Contrary to what consensus thinks, I think higher energy prices could actually be deflationary for the U.S.,” Atakan Bakiskan, chief U.S. economist at Berenberg, told CNBC’s “Squawk Box Europe” on Friday.

Oil prices have soared after U.S. and Israeli strikes on Iran continued on Sunday night.

Brent crude prices hit a new 52-week high on Monday, surging 9.3% to reach $79.40, while U.S. West Texas Intermediate prices also rose more than 9% to $73.10.

U.S. President Donald Trump said the “overwhelming military offensive” — which he has dubbed Operation Epic Fury — would continue until the U.S.’s objectives are achieved. Israel launched fresh strikes against both Iran and against Hezbollah targets in Lebanon late on Sunday, which came after Iran attacked military and infrastructure targets across several countries in the region.

As the U.S. continues to target Iranian air defense systems and naval capabilities, global oil supplies have come into sharp focus.

Amrita Sen, founder and director of research at Energy Aspects, told CNBC on Monday that she expects oil prices to likely hold at around $80 level for some time.

Sen said that it is unlikely that the Strait of Hormuz — through which 13-15 million barrels, or 20% of global supply, of oil flows — would be closed altogether. She added that the bigger risk stems from one-off attacks on vessels passing through the area.

Sen said that the U.S. and Israel have the superior military power to ultimately neutralize Iran’s ability to completely shut off the Strait, a key shipping channel for oil producers such as Saudi Arabia, the UAE, Iraq, Iran, and Kuwait.

But single attacks on ships are more difficult to prevent. “This is something we’ve warned right throughout to our clients,” she said.

After three tankers were hit over the weekend, shippers are now being extremely cautious about going in, she added.

“That is the biggest issue right now — how do Asian refiners actually get the volumes from the Middle East?” Sen added.

She noted that Oman and certain UAE grids can bypass the Strait, while Saudi Arabia has contingency plans to move its oil through the East-West pipeline via the Red Sea.

“But even if you are able to move 5 million out through other methods, about 10 is still stuck,” she added.

Sen added that, if energy infrastructure is hit, the price of oil could hit $100.

She added that “the stakes are just too high” when it comes to potential attacks on infrastructure.