Iran & the Strait of Hormuz

Last updated: September 26, 2026

Maritime activity in the Strait of Hormuz experienced extreme volatility this week, shifting from a six-month high of over one billion barrels in the preceding fortnight to a near-collapse, with commodity transits dropping to as low as three vessels on September 24. Kinetic tension spiked as two separate projectiles struck vessels in the strait, leaving one cargo ship adrift and on fire. These disruptions drove supertanker rates on the Persian Gulf-to-China route to $1.035 million per day, nearly five times pre-war levels. While Brent oil steadied near $100 and WTI below $96 mid-week due to temporary flow improvements, prices rose $3 a barrel by September 25 as diplomatic progress stalled.

Tehran transitioned through three distinct postures this week: maximum military alert, aggressive expansion, and sudden diplomatic overture. After raising forces to "Code 100" and claiming Houthi control of the Bab el-Mandeb, Iran initially threatened to expand the conflict into the Indian Ocean. However, facing severe economic strangulation—including the worldwide shutdown of its airlines and the U.S. seizure of three tankers carrying 6 million barrels of crude—President Pezeshkian pivoted during the UN General Assembly. Iran has now submitted a formal proposal to reopen the strait within seven days if the U.S. lifts its naval blockade and releases frozen funds.

Investment implications remain tied to the fragility of this proposed roadmap. The market has begun pricing in a potential reopening, evidenced by a recent pullback in oil and gains in European shares. However, the risk of a sudden return to "Code 100" remains high, as Israeli sources indicate strikes on Iranian nuclear sites are a matter of time if red lines are crossed. Tehran’s leverage is severely diminished; Pezeshkian’s admission that Iran cannot access its own funds in China suggests the regime lacks the economic headroom to sustain further sanctions or a prolonged blockade.

Key variable to watch: The White House's response to Iran's seven-day proposal to reopen the Strait of Hormuz.

Last updated: September 19, 2026

Kinetic escalation accelerated this week as Iran transitioned to an offensive military strategy, targeting a UAE-owned oil tanker with anti-ship ballistic missiles while under U.S. escort. Maritime transit through the Strait of Hormuz has collapsed to historic lows, with commodity vessel crossings dropping to as few as three per day by Wednesday. Further intensifying the energy crisis, Saudi Arabia closed a major oil pipeline following an attack, and the IRGC reported an oil tanker explosion alongside the shoot-down of four MQ-1 drones in four days.

Strategic dynamics have shifted from a maritime blockade to a wider regional conflict involving significant territorial gains by Houthi forces, who captured the Greater and Lesser Hanish islands. While the U.S. has destroyed Iranian radar to reduce night-time visibility for ships, the Pentagon admitted that Operation Epic Fury has caused strategic munitions inventory shortfalls. Domestically, the conflict is manifesting in the U.S. through diesel shortages in North Texas and Florida, forcing United Airlines to cancel December flights due to fuel costs.

Diplomatic efforts are fragmented and contradictory. A scheduled meeting between Iran and Gulf powers in Oman was postponed, and Iran has rejected U.S. demands to reopen the southern maritime route, citing the Islamabad Memorandum. However, President Trump has signaled the war may end "very soon," and the U.S. will permit Iranian leaders to attend the UN General Assembly. Simultaneously, China and Pakistan are pressing Tehran to restrain Houthi attacks following Saudi appeals.

Investment implications are driven by heightened energy volatility and severe transit disruptions, with oil prices increasing over 3% following new strikes. The IEA reports the Strait of Hormuz will likely remain closed for the rest of the year, and Mitsui OSK Lines indicates LNG shipments are unlikely to resume soon. Financial pressure is mounting as the CBO estimates the war's cost at $38 billion, with expenditures rising by $3 billion per month.

Key variable to watch: The outcome of the predicted meeting between President Trump and Gulf leaders in New York next week.

Last updated: September 12, 2026

The conflict has evolved from a maritime blockade into a regional war characterized by high-intensity kinetic exchanges and the strategic seizure of key waterways. This week, the U.S. military sank the M/T Kylo—the first commercial vessel sunk by the U.S. since World War II—and destroyed several other Iranian tankers. Iran retaliated with ballistic missile strikes on the Muwaffaq Salti Air Base in Jordan, damaging eight F-15s and one A-10, while the IRGC targeted numerous tankers in the Strait of Hormuz. Simultaneously, Iran-backed Houthi forces completed a takeover of the Bab el-Mandeb Strait, seizing Mayyun Island and the port of Dhubab, effectively controlling a second critical global chokepoint.

Strategic dynamics have shifted toward total regional instability compared to last week's focused maritime conflict. Iran is sustaining its military capacity through barter-style arrangements for Chinese goods and military equipment to bypass U.S. sanctions, though President Trump reports domestic Iranian inflation has reached 300%. The U.S. has intensified pressure by suspending General License J-1 and threatening strikes on the Pickaxe Mountain and Mount Fao sites. Despite the escalation, urgent diplomatic channels have opened, with Qatari, Omani, Pakistani, and South Korean officials engaging Tehran to discuss de-escalation and temporary shipping routes.

Investment implications are driven by severe energy price shocks and collapsing transit volumes. Brent crude broke the $100 mark following Houthi strikes on Saudi Aramco facilities in Jazan, Abha, and Najran, while U.S. diesel prices hit a record $5.85 per gallon. Maritime traffic in the Strait of Hormuz has deteriorated sharply, with commodity vessel crossings falling to single digits by Thursday. Crude oil flows out of the Strait remain at 70% of pre-war levels, but oil product flows have plummeted to 35%, creating significant financial strain for Asian carriers and increasing global fuel volatility.

Key variable to watch: The outcome of the scheduled Monday meeting between Iran and Gulf states to negotiate a deal regarding the Strait of Hormuz.

Last updated: September 05, 2026

The conflict has transitioned from a maritime blockade to a regional kinetic war characterized by direct strikes on sovereign territory. This week, the IRGC formally declared the Strait of Hormuz closed to uncoordinated shipping, leading to the redirection of 82 vessels and the detention of three. Tensions escalated into direct combat following Iranian cruise missile attacks from Larak Island, which prompted a retaliatory U.S. strike on the island and subsequent Iranian ballistic missile attacks on U.S. bases in Jordan, Kuwait, the UAE, and Iraq. The U.S. has since expanded its offensive, striking 100 targets across Iran and implementing a "tanker for tanker" policy by targeting Iranian state oil vessels.

The strategic environment has shifted toward high-intensity escalation compared to last week's managed stalemate. The U.S. has intensified economic pressure through "Operation Economic Outcast," supported by the European Union, and Treasury Secretary Scott Bessent announced a move toward weekly secondary sanctions targeting banks. Internally, the U.S. faces strategic vulnerabilities as munitions stockpiles in Europe and Asia have reached critically low levels due to transfers to the Middle East. Conversely, despite a reported 35% drop in trade, Iran claims to have added over $1 billion to its foreign exchange reserves and maintains that oil exports have continued uninterrupted over the last six to eight months.

Investment implications are now dominated by severe energy price shocks and inflation fears. Brent crude surged above $92 per barrel after projectiles struck two Saudi supertankers, and U.S. gasoline prices have exceeded $4 per gallon. Asian LNG prices have reached their highest levels since 2022 as commodity vessel traffic through the Strait collapsed, hitting a low of four ships on Thursday. These disruptions have pushed the U.S. 10-year Treasury yield to 4.792%. While President Trump is privately discussing a formal end to the war, the immediate outlook remains volatile as South Korea prepares military deployments to the Strait.

Key variable to watch: The impact of weekly secondary sanctions on Iranian banking stability and the outcome of private U.S. discussions regarding a formal declaration that the war is over.

Last updated: August 29, 2026

The maritime blockade of Iran has reached a critical state, with the U.S. deploying 50,000 troops to maintain the naval seal and clear Iranian mines from international channels. Shipping traffic has effectively collapsed, with commodity vessel transits dropping to as few as five ships on certain days, significantly below the 10-day average of 15. While the U.S. reports that Iran has not exported a single barrel of oil since the blockade began, Tehran has attempted to maintain limited leverage by granting special passage to Iraqi tankers and asserting operational control over the Arabian and Oman Seas.

The conflict has shifted toward an "economic D-Day" strategy, characterized by record currency devaluation as the rial hit a low of 2.027 million against the dollar. Washington has expanded sanctions to target the Wellbred group and businesses in China and Hong Kong, prompting Iran to vow retaliation. Simultaneously, the U.S. has suffered significant strategic setbacks, including the permanent loss of 15 Persian Gulf bases and 774 service member casualties. In response to the prolonged instability, Gulf states are investing billions in ports and pipelines to bypass the Strait, while Qatar has seen LNG exports slashed by 96% over six months, costing the state $24 billion.

Despite the stalemate, a managed de-escalation path is emerging through regional mediation. Pakistan and Oman have engaged in high-level talks in Tehran, resulting in a revenue-sharing agreement between Iran and Oman for a temporary shipping corridor that bars military vessels. However, kinetic risks remain acute, evidenced by a recent projectile strike on a U.S.-escorted Kuwaiti tanker. Iran continues to tie the full reopening of the Strait to the lifting of the naval blockade and a cessation of fighting in Lebanon.

Investment implications have shifted from a pure risk premium to reflecting a costly stalemate; Brent crude fell 1.7% to approximately $87 per barrel following news of the Iran-Oman talks. The U.S. Department of Justice is now considering using "prize courts" to seize Iranian tankers for the U.S. Treasury, further escalating the economic war. The regional outlook remains fragile as Iran prepares new weaponry and tactics for future conflicts while its internal fuel pressure mounts.

Key variable to watch: The implementation of the interim shipping corridor framework and the result of the U.S. memorandum of understanding mediated by Pakistan.

Last updated: August 22, 2026

The security environment has deteriorated from a high-tension plateau to a total collapse of diplomatic channels and active kinetic engagement. Following the expiration of a 60-day ceasefire, shipping traffic in the Strait of Hormuz has ground to a halt, with daily crossings dropping to single digits. Tensions peaked with the striking of a U.S.-escorted vessel, causing crew casualties and a fire, prompting Iran to declare a "fully offensive" military posture. This escalation is compounded by the UAE terminating all economic relations with Tehran after accusing Iran of firing two ballistic missiles into UAE territory.

The U.S. has pivoted to a strategy of regime collapse through "Economic D-Day," characterized by the imposition of the toughest sanctions in history and a naval blockade that is already restricting Iranian oil revenue and reducing offers to Chinese buyers. Military reinforcement is underway with the arrival of the USS George Washington carrier strike group in the Arabian Sea, replacing the USS Abraham Lincoln. In response, Iranian hardliners have submitted a proposal to parliament to withdraw from the Nuclear Non-Proliferation Treaty (NPT), while Iranian forces have assessed potential strikes on U.S. military assets in Europe.

Investment implications are severe as the prospects for restoring shipping fade. Brent crude has risen above $91 per barrel and WTI has neared $85, while shipping giants COSCO and CMES have halted oil tanker transport through both the Strait of Hormuz and Bab al-Mandeb. Regional economic damage is mounting, with Middle Eastern airlines projected to face losses of $4.3 billion in 2026 and Iraq reporting direct negative impacts on its economy. Furthermore, high-value maritime assets are fleeing the region, with superyacht owners relocating vessels from Dubai to Singapore or Phuket.

Key variable to watch: The Iranian parliament's vote on the proposal to withdraw from the Non-Proliferation Treaty.

Last updated: August 15, 2026

The security environment has shifted from volatile diplomacy to a state of open kinetic conflict and economic warfare. Iran has effectively shut down the Strait of Hormuz, with shipping traffic hitting a three-month low and dropping as low as six vessels on a single day. Tehran has rejected the previous Oman-mediated framework and a 60-day ceasefire extension, declaring the waterway a "theater of war" under absolute Iranian control. Kinetic activity escalated this week with multiple Iranian missile and drone strikes on ADNOC vessels and other tankers, while Houthi proxies targeted a Saudi Aramco refinery in Jazan and killed six people aboard a cargo ship in the Bab el-Mandeb.

The U.S. response has pivoted toward aggressive economic isolation and preparing for a potential indefinite naval blockade. Treasury Secretary Scott Bessent launched "Operation Economic Fury" to intensify sanctions, though the UAE simultaneously released several billion dollars in frozen Iranian assets, including $283 million in gold. Military tensions have personalized, with President Trump secretly departing Turkey following Iranian assassination threats, while the Pentagon seeks accelerated weapons production to replenish interceptor stockpiles depleted by Iranian attacks. Internally, Iran has seen a leadership shift with Mohsen Rezaei appointed head of the Supreme National Security Council.

Investment implications are severe as global oil supply shortfalls deepen, contributing to Brent crude rising above $84 a barrel. The standoff is driving structural shifts in energy infrastructure, with Adnoc Gas evaluating an LNG facility outside the Strait to bypass the chokepoint. Broader economic fallout is manifesting in rising U.S. mortgage costs and a spike in Chinese electric truck exports to Asia driven by higher fuel prices. Maritime risk has reached a critical threshold, forcing supertankers to "go dark" for extended periods to navigate the Strait and the Bab el-Mandeb.

Key variable to watch: The implementation of the U.S. naval blockade and the rollout of "Operation Economic Fury" sanctions next week.

Last updated: August 08, 2026

Hostilities shifted from imminent large-scale U.S. strikes to a volatile mix of contradictory diplomacy and tactical escalation. While President Trump announced the cancellation of planned attacks on Iranian nuclear and energy infrastructure, citing an agreed-upon framework to reopen the Strait of Hormuz, Tehran has publicly denied direct negotiations with Washington. Despite this diplomatic signaling, the IRGC expanded its kinetic campaign, firing ballistic missiles at U.S. and government facilities in Jordan and Kuwait, and shooting down a U.S. MQ-9 drone.

The maritime environment deteriorated sharply as Iran targeted the U.S.-backed southern shipping route near Oman. ADNOC reported three of its vessels were struck this week, contributing to 15 total attacks, while other tankers encountered projectiles and Iranian warning actions. Saudi Aramco CEO Amin Nasser reported that shipping through the Strait has fallen to one-tenth of pre-conflict levels, removing 2.6 billion barrels of crude from global supply. In response to the threat, Saudi Arabia, Turkey, and Pakistan signed a trilateral defense agreement in Mecca to coordinate security against Iran.

Investment implications remain high-risk as the market weighs a potential 60-day interim transit agreement against ongoing physical disruptions. Iran has added a financial dimension to the crisis by proposing a 7% toll on commercial ships, which could generate over $100 billion annually at pre-war levels. While Saudi Arabia reduced its main crude oil price for Asia during negotiations, the overall security environment is unstable; President Trump admitted the waterway remains unsafe due to mines and Iranian fire.

Key variable to watch: Whether the Iranian Security Council formally approves the 60-day temporary transit corridor agreement.

Last updated: August 01, 2026

The conflict transitioned from a brief diplomatic pause into a direct maritime blockade and intensified aerial warfare. After a period of relative calm and Omani-led negotiations for a shared oversight system in the Strait of Hormuz, hostilities resumed on July 30 with IRGC ballistic missile strikes on U.S. forces in Jordan and coordinated U.S.-Saudi strikes against Iranian proxies in Iraq. This culminated in a large-scale U.S. operation targeting dozens of IRGC sites, including Bandar Abbas and Qeshm Island, while Iran launched drone attacks against U.S. installations at Ahmed Al Jaber Air Base in Kuwait.

Iran has now formally declared the Strait of Hormuz closed, requiring permits for transit and actively blocking tankers; six vessels were recently stopped, with two struck. This represents a critical escalation from last week's posture of "full control" to an actual blockade. Further destabilizing moves include the IRGC's use of migrant routes to move operatives into Britain and the reported loss of 230 million cubic meters of Iranian gas production capacity. In response, the U.S. and Israel are considering a land blockade, and the Pentagon has presented a two-week plan to expand bombing campaigns.

Investment implications are volatile as the market fluctuates between ceasefire speculation and total war risks. Crude oil prices initially declined by 5% during the pause, but rebounded sharply following the July 30 missile attacks, with Brent rising 3.4% to approximately $87 and WTI to $81.97. Gold rose toward $4,100/oz as a safe haven, while China increased green energy funding to offset the impact of the conflict on global oil demand. The blockade of Hormuz and the potential for a land blockade signal a shift toward long-term physical supply disruptions rather than temporary risk premiums.

Key variable to watch: Whether the U.S. implements the Pentagon's two-week plan to expand bombing or moves forward with a land blockade of Iran.

Last updated: July 25, 2026

The conflict has transitioned from a localized maritime blockade into a high-intensity regional war of attrition. Over the last 13 days, the U.S. has conducted a nightly bombing campaign, culminating in a massive operation with over 35 strikes in a single hour against Ahvaz, the capital of the oil-rich Khuzestan Province. The U.S. has expanded its strike footprint to include Bushehr, Parchin, and Urmia, introducing B-1 long-range bombers for the first time since fighting resumed. Simultaneously, the Pentagon has requested $80 billion to fund the conflict, with Defense Secretary Pete Hegseth estimating costs already at $37.5 billion.

Iran has shifted from defensive postures to an aggressive regional offensive, targeting U.S. bases across Jordan, Kuwait, and Bahrain. Key strikes hit troop housing in Jordan and the Al-Salem and Camp Doha bases in Kuwait, resulting in three confirmed American military deaths and nearly 100 injuries. Beyond direct engagements, Iran has intensified its maritime sabotage in the Strait of Hormuz through the use of minefields and anti-ship cruise missiles. This escalation has been mirrored by Iran-backed Houthis, who attacked two Saudi Arabian tankers in the Red Sea, prompting President Trump to threaten "major military punishment" and the destruction of Iranian power plants and bridges.

Investment implications are now dominated by the physical disruption of energy flows and surging costs. Oil prices returned to above $90 per barrel following tanker attacks, with U.S. oil prices marking a 31% increase since July 2. Tanker crossings through the Strait of Hormuz have reached their lowest level in over two months, forcing Saudi Arabia to divert exports through the Suez Canal. The geopolitical risk is further compounded by Israeli reports that Iran has moved nuclear centrifuges into Pickaxe Mountain, while Iran has rejected a U.S. ceasefire proposal delivered via Iraq.

Key variable to watch: Whether the U.S. executes threats to destroy Iranian power plants and bridges, which Iran has warned will trigger retaliation against regional energy infrastructure.

Last updated: July 18, 2026

The conflict has transitioned from targeted strikes into a formal state of war, characterized by a total blockade of the Strait of Hormuz and a sustained regional air campaign. Following the collapse of a ceasefire, the U.S. launched multiple rounds of airstrikes across southern Iran, targeting airfields and infrastructure in Bushehr, Khuzestan, and Lorestan, and fired ground-to-ground missiles from Bahrain and Kuwait. In response, Iran declared the Strait closed, deployed mines in the Omani shipping lane, and launched ballistic missiles and drones targeting U.S. assets in Bahrain, Kuwait, and Jordan, including direct hits on the U.S. Navy 5th Fleet Headquarters.

The strategic environment deteriorated further as President Trump formally notified Congress of the resumption of the Iran War and reimposed a naval blockade of all Iranian ports. To manage the blockade, the U.S. proposed a 20% reimbursement fee—approximately $30 million for full supertankers—for cargo transiting the strait. Iran escalated its targeting set to include critical infrastructure in Gulf states, striking the BAPCO oil refinery in Bahrain and launching attacks on Doha and the Al Udeid Air Base in Qatar. The IRGC has threatened to halt all Middle East energy exports if U.S. attacks continue.

Investment implications are now driven by a full-scale disruption of the world's most critical energy chokepoint. Brent crude prices rose to $85.60 per barrel as maritime traffic plunged and the U.S. began firing on commercial vessels attempting to break the port blockade. The conflict's ripple effects have extended to the global chip supply, triggering a Chinese halt of helium exports. With over 50,000 U.S. service members deployed and the U.S. threatening strikes on Iranian power plants and bridges, the risk of a total regional energy shutdown is now the primary market concern.

Key variable to watch: Whether the U.S. proceeds with the "massive offensive" against Iranian power plants and bridges or if negotiations resume to lift the dual blockade.

Last updated: July 11, 2026

The fragile ceasefire from last week collapsed into a regional air war following a period of high tension during the funeral of Supreme Leader Ali Khamenei. Initial escalations began with the IRGC shutting down the Omani corridor and later firing missiles at commercial vessels, including the Qatari LNG tanker Al Rekayyat and a Saudi-flagged crude oil tanker. The U.S. responded with precision strikes on over 80 targets, including IRGC small boats, air defense systems, and critical infrastructure such as railway bridges and facilities in Bushehr Province. Iran retaliated with ballistic missiles and drones targeting U.S. bases in Bahrain, Kuwait, Qatar, and Jordan, while the U.S. government revoked Iran's waiver to sell oil globally.

The conflict has shifted from localized maritime skirmishes to a full-scale kinetic exchange. While Brent crude prices briefly fell below $72 per barrel earlier in the week due to OPEC+ output increases and a temporary resumption of traffic, tanker volumes have since slowed. The IRGC has asserted total control over the strait, stating it will only permit commercial ships to use Iranian-mandated routes. Market volatility remains acute, with the probability of Iran implementing transit tolls by August 31 now estimated at 50%, and China reacting to the instability by temporarily banning helium exports.

Investment implications have shifted from monitoring a diplomatic truce to managing high-intensity geopolitical risk. The targeting of high-value LNG and oil assets, combined with the loss of the U.S. oil export waiver, heightens the risk of prolonged supply disruptions. Despite the kinetic escalation, tentative signs of de-escalation have emerged, including Qatari-mediated talks and the return of some workers to the Bushehr Nuclear Power Plant. However, the environment remains volatile as Iran threatens further retaliation against Israel and the U.S.

Key variable to watch: Whether Qatari-mediated talks result in a Memorandum of Understanding that halts the regional air war and restores standard transit in the Strait of Hormuz.

Last updated: July 04, 2026

The geopolitical environment in the Strait of Hormuz transitioned from active kinetic conflict to a fragile, mediator-led stabilization. Following missile and drone strikes on U.S. bases in Kuwait and Bahrain and the subsequent cancellation of technical talks in Switzerland, the U.S. and Iran reached a ceasefire. This pivot led to the resumption of commercial activity, including the return of scheduled flights to Dubai and the restart of Iraqi oil exports. Qatar also resumed LNG exports after a one-week hiatus, and overall OPEC crude production rose as Gulf members restored exports.

Diplomatic efforts shifted to Doha, where U.S. envoys Jared Kushner and Steve Witkoff engaged in indirect talks mediated by Qatar and Pakistan. While President Trump expressed optimism, claiming Iran has agreed to nearly all U.S. requirements, reports indicate a lack of progress toward lasting peace. Key friction points remain: Iran has rejected direct meetings with top U.S. officials and refused a U.S. offer to trade access to frozen funds for the removal of proposed transit tolls. Iran's leadership further asserted that the U.S. must not interfere in the strait and maintains that only Tehran and Oman should determine transit rules.

Investment implications center on a reduction in immediate supply risk, though a baseline of diplomatic friction persists. The U.S. has mitigated global inventory gaps by releasing 172 million barrels of oil, while Iran has exported 50 million barrels since the blockade was lifted, generating $3.5 billion. However, Iranian oil faces a buildup of tankers off China due to difficulty finding buyers, and Treasury Secretary Scott Bessent identified China as the only remaining major buyer. Market volatility remains tied to Iran's threat to resume charging ships for passage in mid-August, a move some European countries now view as inevitable.

Key variable to watch: Whether Iran implements transit tolls in mid-August following the conclusion of Doha negotiations.

Last updated: June 29, 2026

The geopolitical environment around the Strait of Hormuz shifted from optimistic diplomacy to active kinetic conflict this week. Initial progress from Swiss-mediated talks led to a surge in vessel traffic, peaking at 70-78 ships on Wednesday, and a rebound in Iranian crude exports, with 40 million barrels leaving the strait since June 15. These developments briefly eased supply concerns, pushing WTI crude futures below $70 per barrel and prompting insurers to slash war premiums.

The security situation collapsed late in the week following mutual strikes between the U.S. and Iran. Iran launched drone attacks against Bahrain and a projectile struck a commercial tanker in the strait, leading the U.S. Navy's Joint Maritime Information Center to significantly raise threat levels. These escalations, combined with U.S. strikes on Sirik and a $3.4 billion cyberattack linked to an Iranian national, have jeopardized the diplomatic track. This followed a volatile stretch where Iran attempted to leverage the strait's stability by proposing a $40 billion annual "service fee" for transit — a move rejected by U.S. Secretary of State Marco Rubio and Gulf partners. Iranian negotiators are now considering canceling technical talks in Switzerland scheduled for June 28-29.

Investment implications center on the return of a volatility risk premium to oil and shipping. While the U.S. Navy has expanded a passage near Oman to maintain two-way transit and mitigate the impact of remaining Iranian mines, the shift back to kinetic strikes undermines the recent price decline. The potential collapse of the Switzerland talks removes a primary catalyst for long-term stabilization, likely reversing the recent trend of lower insurance premiums and introducing new supply disruption risks.

Key variable to watch: Whether Iran officially cancels the June 28-29 technical talks in Switzerland.

Last updated: June 28, 2026

Iran and the United States have exchanged reciprocal strikes across the Strait of Hormuz this week, marking the most severe escalation since the interim peace deal collapsed. Iranian forces launched drone attacks against Bahrain, prompting condemnations from Jordan and Qatar, while a tanker was struck by a projectile in the strait — the first direct hit on a commercial vessel in months.

Diplomatic talks scheduled for June 28–29 in Switzerland are now in doubt. Iranian negotiators have signalled they may cancel, citing the US strikes as a material breach of the ceasefire framework. CENTCOM confirmed the US strikes were in response to IRGC Navy harassment of coalition vessels near the Strait's narrowest point.

Oil markets reacted sharply, with Brent crude spiking above $95/bbl before partial retracement. Shipping insurance premiums for Hormuz-transiting vessels have risen 40% over the past week. Asian buyers — particularly South Korea and Japan — are accelerating diversification to non-Gulf suppliers. The key variable to watch is whether the Switzerland talks collapse entirely; a confirmed cancellation would likely push Brent above $100.