Global oil shock as Iran war shuts down the Strait of Hormuz
Built World
Brent crashes to $103, WTI $96 after US-Iran ceasefire; Strait of Hormuz to reopen; Madagascar declares energy emergency; crisis resolved after 41 days
Brent crashes to $103, WTI $96 after US-Iran ceasefire; Strait of Hormuz to reopen; Madagascar declares energy emergency; crisis resolved after 41 days
The U.S.-Israeli war on Iran, which began February 28 with Operation Epic Fury, reached a sudden conclusion on April 8 when the United States and Iran agreed to a ceasefire, with Tehran committing to reopen the Strait of Hormuz—closed for 41 days under Islamic Revolutionary Guard Corps control. The conflict drove Brent crude above $112 per barrel and West Texas Intermediate above $111 in early April, with the International Energy Agency warning of 12 million barrels per day offline in history's largest oil supply shock. Key triggers included Israel's March 18 strikes on South Pars, U.S. operations in the strait, Yemen's Houthi attacks, and President Trump's expired March 22 ultimatum on Iranian power plants. Japan released reserves on March 16, and the U.S. Energy Information Administration's April 7 outlook reflected prolonged disruption before the surprise de-escalation.
The U.S.-Israeli war on Iran, which began February 28 with Operation Epic Fury, reached a sudden conclusion on April 8 when the United States and Iran agreed to a ceasefire, with Tehran committing to reopen the Strait of Hormuz—closed for 41 days under Islamic Revolutionary Guard Corps control. The conflict drove Brent crude above $112 per barrel and West Texas Intermediate above $111 in early April, with the International Energy Agency warning of 12 million barrels per day offline in history's largest oil supply shock. Key triggers included Israel's March 18 strikes on South Pars, U.S. operations in the strait, Yemen's Houthi attacks, and President Trump's expired March 22 ultimatum on Iranian power plants. Japan released reserves on March 16, and the U.S. Energy Information Administration's April 7 outlook reflected prolonged disruption before the surprise de-escalation.
Oil prices posted their largest single-day drop in nearly six years, with WTI falling 15% to $95.85 and Brent to $103.42 as the war premium evaporated from ~$14 to $4-6 per barrel. Global stocks rallied on relief, though ripple effects persist: U.S. gasoline neared $4.50 nationally (California $5.87), Taiwan Airlines hiked surcharges 157% on April 7, and Madagascar declared a 15-day energy emergency on April 8 due to severed imports. The ceasefire caps a 41-day crisis that risked $150 oil and global recession.
Why it matters
Ceasefire averts $150 oil and recession but leaves higher energy prices and supply chain scars.
Key Indicators
$103 (Brent), $96 (WTI)
Crude per barrel
Brent crashes to $103.42, WTI to $95.85 (-15%) on Apr 8 ceasefire; previously $109+/$111+ on Apr 6; up 80%+ peak from Feb 28 but war premium collapses; IEA: 12M bpd was offline
$4.00+ (nearing $4.50)
U.S. average gasoline price per gallon
National average crossed $4.00 per AAA on March 31; California at $5.87; up 70+ cents since Feb 28; expected to stabilize post-ceasefire
Global rally; Dow exits correction
Global stock indices
Apr 8 relief rally after ceasefire; previously Dow correction (down 7%+ YTD), Nasdaq/S&P losses on Apr 2 amid oil surges and stagflation fears
12M barrels/day (resolved)
Production offline
South Pars, Hormuz closure resolved by ceasefire; IEA warned crunch into April; EIA forecasted U.S. crude at 13.6M bpd for 2026
Madagascar energy emergency
Global ripple effects
Apr 8: 15-day national emergency declared over fuel shortages from Hormuz crisis; highlights import-dependent nations' vulnerability
Oil prices post largest single-day drop in nearly six years on ceasefire news
Market
WTI crude fell 15% from $112.95 to $95.85 per barrel, Brent to $103.42—biggest one-day decline since 2020—after US-Iran ceasefire and Hormuz reopening commitment compressed war premium from $14 to $4-6 per barrel. Global equity rally followed de-escalation.
Madagascar declares 15-day national energy emergency over war-driven fuel shortages
Market
Madagascar activated 15-day energy emergency granting exceptional powers to manage fuel supply after Hormuz crisis severed petroleum imports from Oman. Stations faced shortages since mid-March, disrupting power and transport in the import-dependent island nation.
U.S. Energy Information Administration releases wartime energy outlook with revised oil forecasts
Market
EIA released April Short-Term Energy Outlook on schedule, updating oil price and production forecasts amid Hormuz crisis. Brent crude forecasts revised above $95 per barrel for near term, up roughly 50% from start of 2026. U.S. crude production forecast at 13.6 million barrels per day for 2026.
Taiwan Airlines implements 157% fuel surcharge hike on international flights
Market
Taiwan's Civil Aviation Administration enforced 157% increase in airline fuel surcharges effective April 7. Long-haul surcharges jumped from $45.50 to $117; short-haul from $17.50 to $45. Major carriers China Airlines and EVA Air affected. Fuel accounts for roughly 40% of airlines' operating costs; carriers say surcharges still insufficient to cover increased expenses.
Oil prices surge past $109 as markets reopen after Good Friday
Market
U.S. crude surged above $109 per barrel on April 6 as markets reopened, with Brent last at $112.42 on April 3; prices up 60%+ since war began, 10M bpd disrupted amid ongoing Hormuz blockade.
WTI surges 11% to $111.54, Brent +7.8% to $109.03—biggest gains in 6 years
Market
U.S. oil futures posted largest single-day gains since 2020 amid fears of extended Hormuz closure handling 10%+ of global supply; escalation fears drive prices higher as war persists.
Brent surges 7% to $107.47 reversing dip; stocks sell off on renewed oil shock
Brent stabilizes near $116; Dow extends correction as gasoline crosses $4 nationally
Market
Brent crude closed near $116.75 per barrel (55%+ monthly gain) as U.S. national average gasoline price crossed $4.00 per gallon for first time since 2022. Dow fell 0.8% (down 7.2% YTD), S&P 500 lost 0.6% (down 3.4% YTD) for fifth consecutive weekly loss. 10-year Treasury yield held above 4.30% as inflation expectations remain elevated.
Brent surges 3.7% to $116.75; Houthi missiles hit Israel amid record monthly oil gain
Market
Brent crude jumped to $116.75 per barrel (55%+ March gain) as Yemen's Houthis fired missiles at Israel, escalating Red Sea/Hormuz risks; IEA deems crisis 'biggest oil shock in history.'
Philippines declares first national energy emergency over Hormuz oil crisis
Market
President Marcos Jr. activates UPLIFT plan amid 45 days of fuel left; first country to declare emergency response to global supply shock from strait closure.
Trump ultimatum: Obliterate Iranian power plants unless Hormuz reopened in 48 hours
Military
Trump warned of strikes on major energy infrastructure if Strait not fully opened; Iran threatened retaliation on U.S. Gulf energy sites. IDF intensified strikes on missile/nuclear sites; over 100 injured in escalations.
IDF Chief: Operations halfway through toward Passover; Trump calls NATO allies 'cowards'
Military
Lt. Gen. Eyal Zamir said campaign against Iran about halfway done. Trump urged Hormuz users to police strait, criticized NATO for non-involvement after prior rebuffs.
Israel strikes Iran's South Pars gas field; oil surges past $108/barrel
Military
Israel targeted Iran's South Pars gas field and refineries, first upstream hits; Brent jumped 5%+ to $108.66. Iran threatened and struck Qatar gas hub; Middle East output down 7-10M bpd.
U.S. deploys bunker-buster bombs in Strait of Hormuz operations
Military
U.S. forces used bunker-buster munitions amid efforts to counter Iranian control; selective ship transits continue with AIS anomalies suggesting Iranian verification.
U.S. allies including France reject warship contributions; more non-Western tankers (Greek, Chinese, Indian) transit after Iranian clearance, confirming de facto control.
Iran fires 4 new missile salvos at Israel; IDF strikes Hezbollah in Beirut
Military
IRGC launched four ballistic missile salvos at Israel in apparent cluster bomb attack, injuring civilians. IDF responded with fresh airstrikes targeting Hezbollah sites in Beirut and regime infrastructure in Tehran.
Japan releases 80 million barrels from strategic reserves; Brent tops $104
Market
Japan began releasing approximately 80 million barrels from strategic petroleum reserves as Brent crude surged to $104.22 per barrel. IEA projects 8-million-barrel-per-day production decline for March; JPMorgan estimates 12M barrels/day offline by late March.
Trump warns allies: U.S. 'will remember' countries refusing coalition
Diplomacy
Trump escalated pressure on international partners, warning that the U.S. will remember which countries refuse to join the warship coalition. White House signals coalition announcement expected this week.
Energy Secretary Wright confirms U.S. military not ready for escort operations
Military
Energy Secretary Chris Wright stated on March 15 that while escort operations will happen 'relatively soon,' the military is 'simply not ready' to begin them now. Wright claimed the world is 'abundantly supplied with oil and energy' despite strait closure.
Polling shows majority of Americans oppose Iran war
Political
Surveys indicate more than half of Americans oppose Trump's war with Iran, while roughly four in ten support it. Republicans in Congress privately urge White House to end conflict quickly to avoid prolonged economic damage in election year.
Trump calls for global warship coalition to secure Hormuz
Military
President Trump posted on Truth Social urging China, France, Japan, South Korea, UK and others to send warships with U.S. forces to escort tankers and end Iran's strait control; vowed U.S. bombing of shorelines and boats until reopened.
Iran targeted central/southern Israel with seven ballistic salvos injuring civilians via shrapnel; continued Gulf attacks; IDF hit regime infrastructure in western Iran.
IRGC, Araghchi claim Hormuz 'under control' not closed
Shipping
IRGC Navy Cmdr. Tangsiri and FM Araghchi stated strait open except to U.S., Israel, allies; others free to pass amid selective enforcement.
IDF strikes 200+ Iranian targets; 60 wounded in northern Israel by Iranian missiles
Military
Israeli jets hit over 200 regime sites in central/western Iran including missile systems; Iranian barrage injures nearly 60 in northern Israel per Magen David Adom. Sirens sound amid Hezbollah threats.
Trump vows new strikes; claims 90% of Iranian missiles destroyed
Military
President Trump told Brian Kilmeade Show that US has destroyed nearly 90% of Iran's missiles and drone manufacturing, vowing to hit regime 'very hard' with unspecified new strikes. Trump wrote on Truth Social: 'Watch what happens to these deranged scumbags today,' signaling imminent action. Trump confirmed US prepared to escort vessels through Strait of Hormuz if necessary.
Iran allows selective Hormuz passage; Indian LPG carriers transit
Shipping
Iran permitted two Indian-flagged liquefied petroleum gas carriers to transit the Strait of Hormuz, marking first significant shipping flows since blockade began. Turkish transport minister confirmed Iran approved passage of Turkish vessel. Selective enforcement continues: Western-flagged ships remain under attack.
US issues second Russian oil sanctions waiver; eases Venezuelan restrictions
Market
US Treasury issued second temporary waiver for purchase of sanctioned Russian crude (broader than March 1 directive limited to India), covering oil loaded before March 12. Administration also eased restrictions on Venezuelan oil and fertilizer purchases to stabilize global energy markets amid $103+ Brent prices.
Brent crude stabilizes above $103; stocks fall for third straight week
Market
Brent crude closed at $103.14 per barrel (up 2.7%), highest in 3+ years, for second straight session above $100. S&P 500 fell 0.6% (down 3.1% YTD), Dow lost 0.3%, Nasdaq fell 0.9% for third consecutive weekly loss. 10-year Treasury yield rose to 4.28% as inflation expectations mount. Fed rate cut odds fell below 1% ahead of next week's policy meeting.
Mojtaba Khamenei vows continued Hormuz closure; IRGC confirms mines
Military
New supreme leader's first statement demands Hormuz blockade persist as 'leverage'; US officials confirm Iran laying mines; IRGC navy vows 'harshest blows' while enforcing closure.
IEA approves record 400M barrel oil reserve release
Market
IEA members unanimously agree to largest-ever emergency release to counter Hormuz closure and Iran war supply shock; Brent falls below $90 as markets react. Executive Director Fatih Birol calls challenges 'unprecedented in scale.'
Trump warns Iran on Hormuz mines; US strikes minelayers
Military
Trump demands immediate mine removal or faces 'unprecedented' response; US Navy destroys Iranian minelaying vessels. Iran launches largest offensive yet, striking ships in strait per reports.
Israel escalates strikes on IRGC and nuclear-linked sites
Military
IDF targets IRGC headquarters, military airfields, and nuclear program facilities in new phase to 'deepen blow to Iranian terror regime.' Netanyahu signals regime change possible but in Iranian hands.
Bahrain declares force majeure after Iranian refinery strike
Military
Bapco invokes force majeure on shipments after Iranian attack sets Al-Ma'ameer refinery ablaze; joins Qatar/Kuwait in suspending output amid escalating Gulf energy hits.
Oil crosses $100; Mojtaba Khamenei named supreme leader
Market
Brent crude jumped to $101.19 a barrel, crossing the $100 threshold for the first time since July 2022. Dow futures plunged over 900 points. Iran's Assembly of Experts named Mojtaba Khamenei — the slain leader's 56-year-old son — as new supreme leader. Trump called the oil spike 'a very small price to pay.' Reports emerged that the U.S. was considering sending special forces into Iran to seize its stockpile of near-weapons-grade uranium.
Israel strikes Iranian oil infrastructure for the first time
Military
Israeli warplanes hit four oil storage facilities and an oil production transfer center in Tehran and Alborz province, producing thick black smoke over the capital. Iran's IRGC retaliated by striking an oil refinery in Haifa, Israel, with ballistic missiles.
Dow drops 900 points; oil approaches $90
Market
U.S. stocks suffered their worst week in nearly a year as oil prices surged past $90 a barrel and a weak jobs report compounded investor anxiety. The national average gasoline price climbed above $3.30 a gallon.
Strait of Hormuz traffic drops to near zero
Shipping
Tanker traffic through the strait collapsed from roughly 50 daily crossings to near zero. Over 150 ships anchored outside the strait. Iran announced it would allow only Chinese-flagged vessels to pass, citing China's diplomatic stance.
Iran attacks energy infrastructure in Qatar and Saudi Arabia
Military
Iran struck QatarEnergy facilities at Ras Laffan and Mesaieed, halting production at the world's largest liquefied natural gas operation. A fire at Saudi Aramco's Ras Tanura refinery — the kingdom's largest — was caused by debris from intercepted Iranian drones.
Iran retaliates across the region; six U.S. soldiers killed
Military
Iran launched retaliatory missile and drone strikes on U.S. bases, Israel, and Gulf states. Six American soldiers were killed in a single Iranian strike on a base in Kuwait. The IRGC issued warnings prohibiting vessel passage through the Strait of Hormuz.
OPEC+ agrees to modest production increase
Market
OPEC+ approved a 206,000 barrel-per-day increase for April. Saudi Arabia had already quietly added roughly 500,000 barrels per day in anticipation of disruptions. Analysts noted the increase was a fraction of normal Hormuz throughput.
Operation Epic Fury begins; Khamenei killed in opening strikes
Military
The U.S. and Israel launched nearly 900 strikes in 12 hours targeting Iran's nuclear sites, air defenses, military infrastructure, and leadership. Supreme Leader Ali Khamenei was killed in an Israeli airstrike on his Tehran compound, along with dozens of senior officials.
Final Geneva nuclear talks end without a deal
Diplomacy
A third round of indirect negotiations in Geneva collapsed after Iran refused to halt uranium enrichment or transfer its stockpile abroad and demanded sanctions relief. Oil was trading around $69 a barrel (Brent).
Trump issues 10-day ultimatum to Iran
Escalation
President Trump gave Iran a 10-day deadline to reach a nuclear deal or face military strikes, while the U.S. amassed aircraft carriers and warships in the region.
U.S.-Iran indirect talks resume in Muscat
Diplomacy
The United States and Iran held indirect nuclear negotiations in Oman, mediated by Oman's foreign minister. No breakthrough was reached.
Scenarios
1
War grinds on, oil stays above $100 through spring
Discussed by: J.P. Morgan commodity analysts, International Energy Agency, Goldman Sachs
The most commonly discussed scenario. Neither side shows signs of de-escalation; the Strait of Hormuz remains effectively closed for weeks or months. Oil stays above $100 — potentially climbing to $120 or higher — as spare capacity outside Saudi Arabia is negligible and Gulf infrastructure damage compounds supply losses. U.S. gasoline prices push past $4.00 a gallon nationally. The Federal Reserve faces a stagflation dilemma: an oil-driven inflation spike hitting an economy already weakened by trade disruptions. A recession in oil-importing economies becomes increasingly likely the longer the strait stays shut.
2
Ceasefire reached within weeks, prices retreat to $80 range
Discussed by: European Union diplomats, China's Ministry of Foreign Affairs, some Wall Street strategists
International pressure — particularly from China, which depends heavily on Gulf oil and has been granted exclusive passage through the strait — brokers a ceasefire. The appointment of Mojtaba Khamenei creates a face-saving off-ramp: a new leader can negotiate terms his father could not. If the strait reopens and Gulf energy infrastructure is repaired, crude could fall back to the $75-85 range within weeks. However, the depth of damage to Iranian, Saudi, Qatari, and Kuwaiti facilities means full supply recovery would take months even in an optimistic scenario.
3
Conflict escalates into a ground operation, oil tests $150
Discussed by: Axios defense reporters, CSIS analysts, retired U.S. military officials
The reported discussions about deploying U.S. special forces to seize Iran's enriched uranium stockpile indicate the conflict could move beyond air strikes. A ground component — even a limited one — would represent a major escalation, likely triggering fiercer Iranian retaliation against Gulf oil infrastructure and possibly drawing in proxies like Hezbollah. Oil could test $140-150 a barrel, rivaling the inflation-adjusted peaks of the 1970s oil crises. Markets would price in a prolonged, multi-front regional war.
4
Strategic reserves and alternative routes cushion the blow
Discussed by: U.S. Senate Democrats (led by Chuck Schumer), International Energy Agency, energy analysts
The U.S. releases oil from the Strategic Petroleum Reserve — currently holding roughly 400 million barrels — while Saudi Arabia maximizes pipeline exports that bypass the Strait of Hormuz, including the East-West pipeline to the Red Sea. Other International Energy Agency members coordinate their own reserve releases. This scenario limits the price spike to the $90-110 range but cannot fully replace the lost Hormuz throughput. Trump has so far resisted calls to tap the reserve, and the Red Sea route faces its own security risks.
Historical Context
Arab oil embargo (1973-1974)
October 1973 - March 1974
What Happened
After the United States provided emergency military aid to Israel during the Yom Kippur War, the Organization of Arab Petroleum Exporting Countries imposed an oil embargo on the U.S. and other Western nations. The price of oil quadrupled from $2.90 to $11.65 a barrel in under four months, producing gas lines, rationing, and a sharp recession.
Outcome
Short Term
The U.S. economy entered a deep recession with double-digit inflation and unemployment rising above 8 percent. Congress imposed a national 55-mph speed limit to conserve fuel.
Long Term
The crisis led to the creation of the Strategic Petroleum Reserve in 1975 and the International Energy Agency to coordinate Western responses to supply disruptions. It permanently ended the era of cheap oil and reshaped American energy policy.
Why It's Relevant Today
The 1973 embargo demonstrated what happens when a major oil chokepoint is deliberately closed for geopolitical leverage — the exact mechanism now playing out in the Strait of Hormuz. The difference in scale: the embargo removed roughly 5 million barrels per day from the market. The Hormuz closure threatens roughly 17 million.
Gulf War oil shock (1990)
August 1990 - February 1991
What Happened
Iraq's invasion of Kuwait on August 2, 1990, removed approximately 4.3 million barrels per day from global supply — the combined output of both countries. Oil prices roughly doubled from $34 to about $77 a barrel within weeks as markets feared Saddam Hussein would invade Saudi Arabia and seize a larger share of global production.
Outcome
Short Term
Prices spiked sharply but fell back quickly once the U.S.-led coalition launched Operation Desert Storm in January 1991. Saudi Arabia ramped up production to partially offset the lost Iraqi and Kuwaiti output.
Long Term
The rapid military resolution limited the economic damage. The episode reinforced that oil shocks tied to Middle Eastern conflicts are measured not just by barrels lost but by how quickly supply can be restored.
Why It's Relevant Today
In 1990, Saudi Arabia served as the swing producer that cushioned the shock. In 2026, Saudi facilities themselves are under attack from Iranian drones and missiles — and the kingdom's primary export route through the Strait of Hormuz is the one that's blocked.
Abqaiq-Khurais attacks (2019)
September 2019
What Happened
Drone and cruise missile strikes — attributed to Iran but claimed by Yemen's Houthis — hit Saudi Arabia's Abqaiq oil processing facility and Khurais oil field on September 14, 2019. The attack temporarily knocked out about 5.7 million barrels per day of Saudi production, roughly half the kingdom's output and 5 percent of global supply.
Outcome
Short Term
Oil prices spiked nearly 15 percent in a single day — the largest one-day jump since 1991. But Saudi Aramco restored most production within two weeks, and prices returned to pre-attack levels within a month.
Long Term
The attack exposed the vulnerability of concentrated energy infrastructure to relatively cheap drone and missile strikes. It demonstrated that sophisticated air defenses could be bypassed and that the margin for disruption in global oil markets was thinner than assumed.
Why It's Relevant Today
The 2019 attack showed that Iranian-linked forces could temporarily disrupt Saudi oil production with precision strikes. In 2026, Iran is executing that same playbook at far greater scale — hitting facilities across multiple Gulf states simultaneously, while also closing the strait itself.
