USIran

Published on 09/09/2026 – 10:16 GMT+2•Updated
10:22

The front month contract on Brent crude, the international standard for oil prices, crossed $100 per barrel again on Wednesday morning while the US standard, WTI, hovered around $95.

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Prices have risen almost 20% since the middle of last week as fighting around the world’s most important oil chokepoint has once again intensified.

It is also the first time since 23 July that oil has hit the $100 mark.

US Central Command said its forces destroyed five Iranian tankers carrying crude oil on 8 September after Iran’s Revolutionary Guard fired ballistic missiles at a US Navy warship twice within two days. The command did not identify the ship, but said it was not hit and continued patrolling regional waters.

It followed a similar strike on 5 September, when Iranian forces fired ballistic missiles at a US aircraft carrier and a destroyer, both of which evaded the attack. The command responded by disabling or destroying three Iranian tankers.

Tehran retaliated by firing missiles at a US military base in Jordan, where air defences intercepted most of them, and renewed threats to target tankers in Kuwaiti and Bahraini waters.

Iran has also repeatedly warned vessels against using unauthorised routes through the Strait of Hormuz.

Mohsen Rezaei, secretary of Iran’s Supreme National Security Council, said Tehran would soon declare an exclusion zone outside the strait, warning that any vessel entering without Iranian coordination would be added to a sanctions list.

Saudi Arabia has been drawn in too, with Aramco facilities at Jazan attacked again on Monday, though damage was reported as limited.

Roughly 7 million barrels a day are still moving through the Strait of Hormuz, against about 20 million before the war began on 28 February.

No end in sight

The military escalation is running alongside a financial one.

Washington launched Operation Economic Outcast in late August, an effort to sever Iran from the global financial system by targeting its access to digital assets, technology, gold, aviation and shipping.

The US Treasury designated close to 60 companies, individuals and vessels at the outset and has signalled fresh measures weekly, with the European Union endorsing the campaign this month.

Rhetoric on both sides has hardened.

US Secretary of War Pete Hegseth said the country “will destroy [and sink]” Iranian oil tankers if Iran fires on American vessels while the Iranian parliament speaker Mohammad Bagher Ghalibaf replied by stating “strike our assets and you get struck”.

US President Donald Trump has continued to insist the waterway is functioning, posting on Truth Social last week that “Hormuz volumes are BACK” and claiming 18 million barrels a day were flowing.

However, the US Energy Secretary Chris Wright put Monday’s figure at 17 million barrels of crude and products combined, while acknowledging the multi-day rolling average is considerably lower.

During last week’s White House press conference, US Vice President JD Vance also declined to categorise the ongoing conflict as a war and stated that “the only reason we do not have a worldwide energy crisis is because of the leadership of the President.”

Faced with the latest developments, analysts are adjusting upward.

Goldman Sachs raised its Brent and WTI forecasts by $5 on Monday to $85 and $80, respectively, for December and warned prices could exceed $120 next year should Gulf output remain 4 million barrels a day below pre-war levels, though the bank does not treat that as its base case.

Tehran has threatened “serious consequences” for South Korea if it interferes in the US-Israel war on Iran.

The warning comes amid reports that Seoul is mulling contributing to the US naval blockade of the Strait of Hormuz passage, which has hampered Iran’s oil exports.

In a statement posted on X on Monday, Ministry of Foreign Affairs spokesman Esmaeil Baghaei said Iran and South Korea had more than 64 years of diplomatic relations based on mutual respect and that Tehran values that friendship.

However, if South Korea joins the United States in its military actions against Iran at a time when the country is defending itself from what he called US aggression and “war crimes against women and children”, then there will be consequences, he warned.

Baghaei threatened that Iran would regard any military presence or participation in operations by another country in the Gulf and the Strait of Hormuz “would inevitably be regarded as direct support for the aggressor and would have serious consequences”.

“No sovereign and responsible country should succumb to US pressure and intimidation and become complicit in acts of aggression and horrific crimes against the great Iranian nation,” he added.

Seoul did not respond directly, but a Ministry of Foreign Affairs statement on Monday said it is communicating with the international community over the situation in the passageway.

Here’s what we know about how South Korea is getting roped in:

Why is South Korea involved?

Seoul, a close ally of Washington, has been under pressure from US President Donald Trump.

The issues began in mid-August, when Trump revealed in an interview, and later online, that he had spoken to South Korean President Lee Jae Myung and asked that Seoul give “a little hand” in the war on Iran.

According to media reports, the two leaders had spoken over the phone on May 17.

Seoul said, “No, thanks!”, according to Trump’s message on social media.

However, as South Korea now knows, saying no to Trump has repercussions.

On August 16, Trump announced that the US would significantly scale back joint military drills it holds annually with South Korea – the evening before they were scheduled to begin.

The Ulchi Freedom Shield (UFS) exercises are meant to sharpen Seoul’s readiness in case of a North Korean attack. They usually last for more than 11 days but were reduced to five.

In a post on his Truth Social site, Trump claimed the drills were “costly” and that they send a “hostile” signal to North Korean leader Kim Jong Un, with whom he is trying to build a relationship. South Korean Foreign Minister Cho Hyun said in parliament there was no warning from the US.

Trump also questioned why South Korea would refuse his request when thousands of US soldiers are stationed on the Korean Peninsula.

The US also cancelled another military exercise scheduled for September, although South Korea’s military revealed it received a notification much earlier in June, with Washington citing constraints due to the war on Iran.

How has South Korea responded?

President Lee, a liberal who pushes for a dialled-down defence posture, has opted to negotiate. His office earlier released statements saying it hopes for “meaningful dialogue” with Trump.

South Korea’s Yonhap news agency reported on Monday that Washington has, however, “ratcheted up pressure” on Seoul.

On Friday, a South Korean presidential official told Yonhap that Seoul could consider a military contribution to international measures seeking to free up navigation in the passageway as long as it does not affect the country’s defence readiness.

South Korea is looking at various options, the official said, including possible cooperation with France, the United Kingdom and other allies on sending noncombat and search-and-rescue forces.

The South Korean military has also started reviewing assets and troops that could be deployed, including maritime patrol aircraft, explosive ordnance disposal teams and unmanned mine detection and clearing systems, he added.

Such a move would be unpopular. The opposition has spoken out against a possible deployment, as have some within Lee’s ruling Democratic Party. Many South Koreans have also protested against the US-Israel war on Iran.

What is the history of US-South Korea relations?

South Korea became one of the US’s closest allies after Washington backed Seoul against Pyongyang in the Korean War of 1950.

The US supported Seoul’s economic and military growth in the years after. Under a treaty, some 29,000 US soldiers have been stationed permanently on the Korean Peninsula since the end of the war. Seoul has also relied on US defence might to deter nuclear-armed North Korea.

In return, South Korea supported several US wars, including the Iraq War, and is designated an important non-NATO ally.

In 2025, however, Washington imposed a 25 percent tariff on the country, testing relations. Seoul opted to negotiate rather than retaliate, leading the US to lower tariffs to 15 percent.

Many South Koreans were also alarmed after hundreds of South Koreans were arrested in Immigration and Customs Enforcement (ICE) raids on a Hyundai plant in Georgia in September 2025.

Last October, Trump travelled to Seoul in a historic state visit, and earlier this year, President Lee visited the US. Lee is also trying to resume dialogue between Washington and Pyongyang.

How is South Korea being affected by the US-Israel war on Iran?

South Korea is facing an economic crisis. The country relies on the Gulf supplies via the Strait of Hormuz for 60 to 70 percent of crude imports, meaning supply is being severely hit. The war has led to soaring inflation, causing the Korean won to fall to a 17-year low.

Seoul therefore has an interest in freeing up the strait. However, under Korean law, the government will require parliament’s approval before a military deployment, although some governing party members could oppose it.

Oil prices are rising to nearly a six-week high amid a wave of strikes between the United States and Iran in the Strait of Hormuz, through which roughly a fifth of the world’s oil supply travels during peacetime.

On Monday, Brent oil futures, the global benchmark, rose to hover around $97 a barrel — up 9 percent over the last five days and 19 percent over the last month. Monday’s market moves are approaching the highest point since July 24th, when prices topped $97.93.

US West Texas Intermediate crude similarly rose to $92.27 a barrel, up 79 cents, also a near six-week high.

In recent days, strikes escalated in the Strait of Hormuz. The US hit three Iranian oil tankers on Saturday, while Iran’s Islamic Revolutionary Guard Corps (IRGC) said it had struck three tankers and three US-linked vessels in other areas.

“This is a reflection of continued conflict and exchange of fire. The supply deficits globally are persisting, and there is little end to these shortages,” Rachel Ziemba, an adjunct senior fellow at the Center for a New American Security (CNAS), told Al Jazeera.

On Monday, Saudi Aramco’s Jizan facilities were struck for the second time in the last month, according to reporting from the Financial Times that cited two people familiar with the matter.

“The fact that a Saudi refinery in Jizan was hit, possibly delaying its return to production, didn’t help,” Ziemba added.

Amid increased strikes, there’s less traffic in the Strait of Hormuz, with an average of 10 commodity ships crossing the vital chokepoint each day over the last 10 days, according to Kpler, a data analytics platform.

“Crude went back down to what the pre-war level was in early July. Then it increased again, and then it reduced again, and now it’s increasing again on this weekend’s exchange plus the Aramco attack,” Arif Gasilov, a partner at the Gasilov Group, an energy advisory firm, told Al Jazeera.

“I would say that you might eventually see an inflection point, depending on how long this keeps going on, where a ceasefire doesn’t move the market at all, maybe by just a dollar or two.”

US consumers pinched

US consumers are feeling the impact of heightened oil prices at the petrol pump. The average price for a gallon (3.78 litres) of petrol has jumped 7 cents over the course of a week, reaching $4.15 nationally on Monday, up from $4.08 this time a week ago, according to the American Automobile Association (AAA), which tracks daily petrol prices.

That’s up from $4.04 this time a month ago and $2.98 from February 28th, when the US and Israel first struck Iran, marking a 39 percent increase since the war began.

Last week, diesel prices hit all-time highs at $5.85 per gallon.

“US diesel prices have never been this high, and now the countdown starts for the trickle-down to everything consumers buy… record diesel will start funnelling down into the economy,” Patrick De Haan, head of petroleum analysis at GasBuddy, said in a post on the social media platform X.

Prices have continued to climb since, with average prices on Monday topping $5.90 per gallon.

“Markets are pricing in longer disruptions. It continues to be in product markets where the biggest disruptions lie, though, including diesel,” Ziemba added.

Those price gains are weighing on Americans, who have spent an average of $764.59 per household on fuel since the war began. That’s $418.82 more than usual, according to Brown University’s Watson School of International and Public Affairs.

Ahead of the US’s September 5-7 Labor Day weekend, the unofficial end of summer and a popular time for US travel, AAA forecasts showed a 20 percent increase in flight costs compared to the same weekend last year.

Ahead of the midterm elections, the economy is emerging as a key issue for US voters — and a potential warning sign for Republicans. Polls show voters souring on President Donald Trump’s handling of the economy, with his economic approval rating falling to a new low in a recent Financial Times poll. Just 17 percent of Americans approve of his handling of the economy.

An Economist/YouGov poll similarly found that 39 percent of Americans believe Democrats are doing a better job handling the economy, compared with 32 percent who said Republicans are.

China pressures

Southeast and East Asian markets rely more heavily on imports travelling through the Strait of Hormuz directly than the US, but Beijing has moved to insulate itself from the disruption by turning to domestic sources, including its strategic petroleum reserve (SPR).

“China has been managing this situation successfully since the beginning of the war. We know that China has many domestic resources, despite rising oil prices,” John Gong, an economics professor at the University of International Business and Economics, told Al Jazeera.

“China has been conserving its oil and gas consumption for quite some time now. China was prepared for these challenges,” Gong said.

He also stressed that China’s close relations with Russia give Beijing another source of supply, with Moscow able to provide nearly half of China’s daily oil needs.

China has also begun tapping into its SPR while reducing its reliance on imports, as Beijing accelerates a broader shift towards alternative energy sources and vehicles that require little or no oil to operate.

“We have national strategies focused on transitioning to clean energies like solar and green power,” Gong said. “When we look at the vehicles purchased in China, more than 50 percent of cars sold on the Chinese market are electric.”

Asian stocks fell on Monday as hawkish comments from Federal Reserve boss Kevin Warsh saw investors ramp up bets on a US interest rate hike, while oil prices spiked after a fresh flare-up in the US-Iran war.

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With inflation remaining stubbornly high – largely on the back of elevated energy costs – the US central bank has come under pressure to act, and Warsh’s refusal to provide guidance has stoked uncertainty.

But in a highly anticipated speech at the Jackson Hole symposium of central bankers and economists in Wyoming, he left traders with few doubts that he was ready to increase borrowing costs.

Warsh said: “We must be confident that underlying inflation is moving to our objective, clearly and at sufficient speed. Otherwise, we have work to do.”

He called the spike in inflation – currently at 3.7% and nearly double the Fed’s 2% target – “concerning”, and said he would be “hard-pressed” to describe current financial conditions as “restrictive”, a potential hint that rate hikes could be on the horizon.

However, he stopped short of saying he would support a hike, adding: “I stand here today committed to a discipline, not to a decision.”

All three main indexes on Wall Street fell Friday. Yields on short-term US Treasury bonds – which reflect monetary policy expectations – jumped, and the dollar rallied against its peers. Gold, which benefits from lower interest rates, fell.

And Asia followed suit, with tech firms – which rely on borrowing to fuel their huge AI investments – leading the way down.

Tokyo, Seoul, Hong Kong, Shanghai, Taipei and Jakarta were all down, though Singapore and Wellington edged up.

Investors eye crucial data releases

Focus will now turn to a string of crucial data releases over the next two weeks before the Fed makes its decision, with jobs up this week and the consumer price index (CPI) next week.

“Should we get an inline payrolls print that does not give the Fed too much to work with, next week’s core CPI report will become the major decider for the market’s Fed belief system,” wrote Chris Weston at Pepperstone.

“The volatility priced around that outcome across rates, forex and equities could therefore be significant.”

Oil prices spike on US-Iran tensions

The Fed’s battle against inflation has been hobbled by the Iran war, which has pushed oil prices higher.

And after a run lower for most of last week, they spiked again on Monday, a day after the United States said it had attacked Iranian rocket launchers on a small island in the Strait of Hormuz, its first strikes on the country in a month.

The attack prompted Tehran to retaliate by hitting US military targets in Jordan. Both main crude contracts rose more than 2% on Monday.

The exchange came shortly after the US-Iran war hit the six-month mark, and at a time when hostilities had been subsiding.

The news revived concerns about the conflict, with attempts and peace talks appearing to be going nowhere and the strait – through which a fifth of global crude and gas passes – largely closed.

US officials this month vowed the “economic asphyxiation” of Iran to make it open the waterway.

“Hormuz is once again threatening to put a floor under oil just as Warsh is putting a ceiling on how much inflation patience markets should assume from the Fed,” said Quintex Intel’s Stephen Innes.

“For oil traders, (the) move is another reminder of how quickly the geopolitical premium can return.

“Physical flows through Hormuz have improved materially from their worst levels, which is precisely why crude had started giving back some of the fear premium, but the latest exchange shows how fragile that progress remains and how quickly the shipping story can be pushed back onto the trading desk.”

Additional sources • AFP

Qatari Prime Minister Sheikh Mohammed bin Abdulrahman bin Jassim Al Thani is due to visit Tehran on Thursday for talks on de-escalating tensions and reviving dialogue between Iran and the United States.

A spokesman for Qatar’s Ministry of Foreign Affairs announced the visit in a statement on X on Wednesday.

Majed al-Ansari said Sheikh Mohammed, who is also Qatar’s foreign minister, will meet with “a number of Iranian officials” in Tehran to “discuss ways to de-escalate tensions” and “create the conditions conducive to dialogue”.

“The visit comes in line with the State of Qatar’s firm position that the diplomatic path is the best means of resolving differences & promoting security & stability in the region,” he added.

Iran also confirmed the visit, saying the discussions will cover “the continuation of Qatar’s mediation efforts and initiatives, as well as other regional developments”.

Qatar has served as a back-channel negotiator between Washington and Tehran and helped secure a memorandum of understanding in June that briefly paused hostilities. The agreement collapsed in July, and the conflict is now nearing its sixth month, with fighting largely paused but no diplomatic breakthrough in sight.

The US has, meanwhile, promised to increase economic pressure on Tehran by sanctioning its trade partners.

US President Donald Trump told Al Jazeera on Wednesday that he was in “no hurry” to resume talks with Iran, saying that he believed economic and military action against Tehran were both effective.

“I have no time schedule; whatever it takes,” he said.

‘Economic terrorism’

Iran has continued to denounce the economic pressure campaign.

Foreign Minister Abbas Araghchi wrote to the United Nations on Wednesday calling the new sanctions an “act of state and economic terrorism” and urging member states not to implement them.

“The sanctions deliberately harm civilians by restricting access to food, medicine, medical equipment, energy and other essentials, violating rights including the rights to life, health, food and an adequate standard of living”, he said.

The two sides also remain at odds over the Strait of Hormuz, the strategic waterway that handled one-fifth of global oil and liquefied natural gas shipments before the US-Israel war on Iran began in February.

Iran wants control over the strait, while the US wants it to remain an international waterway that is free for all. That disagreement in part led to the collapse of the memorandum signed in June.

Oil flows through the strait have since fallen to a three-month low, with just 5 million barrels per day (bpd) transiting on Monday. Before the war, the strait carried roughly 20 million bpd of crude oil.

Qatar’s Foreign Ministry said Sheikh Mohammed will also discuss the waterway in his meetings in Tehran on Thursday, focusing on “the need for it to return to the status quo prior to February 28”.

Regional diplomacy

Sheikh Mohammed’s visit comes two days after Omani Foreign Minister Badr Albusaidi met his Iranian counterpart, Araghchi, in Tehran.

Following those talks, Iran’s deputy foreign minister, Kazem Gharibabadi, said the two countries had agreed on a new temporary route for shipping in the strait.

But he insisted that the waterway will not reopen until the US fulfils its commitments under the June deal, including the lifting of sanctions and the release of frozen assets.

Pakistan’s army chief, Asim Munir, also visited Tehran earlier in the week in a bid to “end the stalemate” in the conflict, with Islamabad reporting “significant progress” in those talks.

Mostafa Khoshcheshm, a professor at the University of Applied Sciences in Tehran, said that regional countries were pushing for dialogue because “they believe that the situation is moving towards escalation”.

“They know that if war breaks out, it would be a fully-fledged war and the fire would spill over into the entire region and beyond, leaving a detrimental impact on the global economy,” he said. “So there are hectic diplomatic moves on the part of these countries.”