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strikeJul 21, 2026

Ships shun Strait of Hormuz as renewed fighting strains key oil corridor

Summary

- Vessel traffic through the Strait of Hormuz has slumped since U.S. President Donald Trump's blockade took effect last week. - Crossings through the Strait have fallen sharply across multiple shipping datasets with renewed U.S. strikes on Iran. Vessel traffic through the Strait of Hormuz has slumped since U.S. President Donald Trump's blockade took effect last week, with shipowners increasingly avoiding one of the world's most important energy corridors as fighting between the U.S. and Iran intensifies. Crossings through the Strait have fallen sharply across multiple shipping datasets with renewed U.S. strikes on Iran, Tehran's declaration of a blanket ban on maritime traffic and fresh attacks on commercial vessels has prompted operators to reassess the risks of entering the Gulf. Lloyd's List Intelligence recorded just 53 vessel transits in the week through July 20, down 66% from 157 the previous week. Tanker and gas carrier movements, which are the ships responsible for transporting most Gulf crude oil and liquefied natural gas, dropped to 30 crossings from 90. Kpler data similarly show activity deteriorating almost immediately after the blockade began. Daily crossings, which had averaged more than 20 vessels before July 15, fell to 16 that day before dropping to single digits on July 16. Traffic remained subdued through the rest of the week, with only sporadic recoveries. The latest slowdown reverses weeks of gradual normalization after the mid-June ceasefire had encouraged some shipowners to resume Gulf voyages. Instead, the renewed fighting has once again nearly emptied the strategic waterway that carries roughly a fifth of global oil consumption. "Things have slowed down significantly since tensions reignited," said Bridget Diakun, senior risk and compliance analyst at Lloyd's List Intelligence. "That's not surprising - people pull back and reassess, as you'd expect." Traffic has not disappeared altogether, however. "Every single person has a different risk appetite," Diakun said. "We're still seeing tankers crossing in and out, it hasn't ground to a complete halt." Rather than recovering steadily, vessel movements are likely to continue coming "in ebbs and flows" as shipowners seize brief windows of perceived safety before pulling back again whenever tensions escalate, she said. S&P Global data painted a similar picture. Just 40 vessels transited the strait between July 17 and July 19, averaging roughly 13 crossings a day, while weekly traffic through July 19 fell almost 50% from the previous week. Commercial ships still accounted for more than 70% of traffic over the period, although only about one-third were assessed as compliant with maritime restrictions. Iran-linked and sanctioned vessels continued to dominate many movements, suggesting mainstream international shipowners remain reluctant to return. "The latest escalation shows how expectations of a rapid opening of the Strait were premature," said Saul Kavonic, head of energy research at MST Marquee. "The hostilities and reimposed blockade set the conflict back on an escalatory trajectory," he said, adding that flows through Hormuz had dropped to around 15% of pre-war levels. Oil could retest $100 a barrel if the current intensity of fighting persists for several weeks or if regional energy infrastructure comes under attack, he told CNBC via email.

Actors involved

Iran

Sources

  • Lee Ying Shan; Anniek BaoBy Lee Ying Shan; Anniek Bao

    - Vessel traffic through the Strait of Hormuz has slumped since U.S. President Donald Trump's blockade took effect last week. - Crossings through the Strait have fallen sharply across multiple shipping datasets with renewed U.S. strikes on Iran. Vessel traffic through the Strait

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strikeUnverifiedUSIranEU
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Iran’s foreign ministry spokesman warned Bulgaria on Tuesday against allowing the U.S. to use its territory for military operations against Iran. The Bulgarian government has said it will seek parliamentary approval to station up to eight U.S. tanker aircraft at an air base in the Balkan country, which is a member of NATO and the European Union.

Ministry spokesman Esmail Baghaei said any activity that facilitates U.S. attacks on Iran would amount to complicity in what he described as “aggression and war crimes”, according to Iranian state media. Baghaei urged Bulgaria not to become “an accomplice of aggressors and lawbreakers”, they said.

The tanker aircraft are mainly used for airborne refueling of other aircraft. Bulgaria’s government aims to station the U.S. aircraft at the Bezmer military facility, about 160 miles southeast of the capital Sofia. The U.S. and Iran have intensified strikes since an interim ceasefire deal signed a month ago unraveled, raising the possibility of a return to all-out war.

strikeUnverifiedUSIran
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The United States has conducted airstrikes in Iran amid threats regarding the Strait of Hormuz, while separately initiating Operation Southern Spear in November targeting vessels in the Caribbean Sea and Eastern Pacific Ocean. The operation has involved 66 strikes resulting in an estimated 221 deaths, with some reported targets unconfirmed as drug smugglers.

The administration has stated that the strikes produced a 97 percent decline in sea-bound trafficking, though independent verification of overall effectiveness and resource impact is not available.

Location: Tehran
strikeUnverifiedUSIranProxyRussiaChina
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Goldman Warns Brent Could Top $120 If Gulf Chokepoint Crisis Deepens

Brent crude futures are trading in the low $90s as the Gulf area escalation enters a tenth consecutive day. Iran attacked a tanker in the Strait of Hormuz, while two tankers carrying Saudi crude reversed course in the southern Red Sea after warnings from Iran-backed Houthi forces placed another critical maritime chokepoint under threat.

For more color on energy markets, Goldman commodities expert Daan Struyven warned clients on Monday that Brent crude futures could surge above $120 a barrel by the fourth quarter if disruptions in the Hormuz maritime chokepoint persist; he noted that such an outcome is not his base case.

Struyven sees Brent around $80 in the fourth quarter and $75 next year, assuming US and Iran tensions ease, but warned that risks remained tilted to the upside as Persian Gulf flows fall below 45% of prewar levels and Houthi threats in the southern Red Sea chokepoint.

"Escalation in the Middle East and the decline in estimated Persian Gulf flows to below 45% of pre-war levels have pushed oil prices back up," Struyven said.

The key upside price risks are:

Shipping disruptions in Hormuz--and potentially the Red Sea--as the estimated 5mb/d rise since the start of the war in pipeline flows via Yanbu to the Red Sea, to more than 6mb/d (Exhibit 3), has played a key role in offsetting part of the decline in Hormuz flows. Damage to energy infrastructure from the Middle East and Russia-Ukraine wars.

While the Iran war has likely not caused lasting major damage to oil production capacity so far, our analysis of the 5 largest prior supply shocks shows an average 42% hit to production in the affected country after 5 years, often reflecting infrastructure damage, underinvestment, or tight sanctions (Exhibit 4).

Struyven noted, "Brent might exceed $120/bbl in 2026Q4 and average $100 in 2027 if Hormuz remains disrupted through 2027 (Exhibit 2, red line). This scenario assumes Gulf output only fully recovers by Dec27, supported by pipeline extensions."

Struyven touched on how China's retreat from the crude market has temporarily capped prices, with net seaborne imports falling 4.7 million barrels a day from a year earlier in June. Weaker refinery runs, a 21% drop in retail gasoline volumes and estimated crude destocking of more than 1 million barrels a day drove the decline. He said imports may remain subdued if prices rise, given China's estimated 2 billion barrels of inventories and its ability to substitute coal and electricity for some oil consumption.

Struyven recommends clients buy the December 2026 to March 2027 European diesel timespread to hedge persistent Middle East and Russian supply risks. Diesel markets were already tight before the Iran war, while Russian refinery outages, low inventories and seasonal demand could push spreads higher. European diesel is preferred over crude, gasoline and US diesel because of constrained refinery output, less price-sensitive demand and fewer US policy-related risks.

According to the latest Bloomberg data, Hormuz traffic is at a near standstill. Analysts at Rystad Energy AS warned in a note that the Houthi threat against crude flows means that Saudi Arabia's Red Sea export route "is now directly in the line of fire."

"If a ceasefire does not materialize, and Hormuz remains largely closed while the Houthi threat to Red Sea shipping intensifies, the risk of a significant rebound in oil prices would be substantial," said Rystad analyst Jorge Leon.

Henri Patricot, Paris-based energy equity research analyst at UBS, also has an upside scenario for Brent:

In the near term, we see the main potential upside risk coming from a breakdown of negotiations and further escalation, pushing oil prices back to ~$100+/bbl. If major oil infrastructure in the region is targeted and the conflict extends beyond the summer, prices could spike to $120+/bbl. This would drive more severe demand destruction, with limited OPEC+ ability to act. While such a price may be short-lived, a structurally higher risk premium could keep prices in the $80s/bbl range and ongoing disruptions would keep it even higher.

The big risk now is that Hormuz disruption is unfolding after global oil buffers have already been depleted, with Cushing inventories reportedly near "tank bottoms." That leaves the market with limited capacity to absorb a prolonged supply shock and will likely increase pressure on the Trump administration to revive diplomacy once the US military has sufficiently degraded Tehran's missile and drone capabilities used to threaten commercial shipping through the strait.

Gloal inventories

The US national average for regular gasoline breached $4 a gallon on Monday, intensifying pressure on the Trump administration to pursue Gulf diplomacy.

Gas prices may go higher...

The $4 threshold is both economically and politically sensitive, as it is where lower-income consumers typically begin cutting discretionary purchases and trading down across gas stations, convenience stores and quick-service restaurants, further weighing on consumer sentiment.

Professional subscribers can read the full GS note here at our new Marketdesk.ai portal.

Tyler Durden Tue, 07/21/2026 - 11:40

strikeUnverifiedProxyChina
1 source

Vessels Xin Long Yang, carrying about 2 million barrels of Saudi crude, and Rodos, loaded with around 700,000 barrels, changed course toward the Suez Canal instead of the Bab el-Mandeb Strait, according to cited shipping data. The Houthis declared a naval blockade of Saudi ports on Monday.

Yanbu port loading continued per Reuters sources, while another vessel turned back and security firms issued transit advisories for the Red Sea.

Location: Strait of Hormuz