NEW YORK — Oil markets posted their most extreme weekly price surge in more than four decades on Friday, as the escalating armed conflict between the United States and Iran confronted global energy planners with the prospect of a prolonged and effective closure of the Strait of Hormuz, the narrow Persian Gulf waterway through which approximately one-fifth of the world's daily crude supply travels. West Texas Intermediate crude settled at $90.90 per barrel on the New York Mercantile Exchange, advancing 12.21%, or $9.89, on the session, and recording a weekly gain of 35.63%, the largest in the history of the futures contract dating to 1983. Brent crude, the global benchmark, settled at $92.69 per barrel, rising 8.52% on the day and approximately 28% for the week, its sharpest seven-day advance since April 2020. During Friday's session, Brent briefly crossed $100 a barrel, a level not seen since 2022.

The Hormuz Chokepoint and What a Shutdown Means

The Strait of Hormuz, which narrows to approximately 33 kilometers at its tightest navigable point, carries roughly 20 million barrels of crude oil per day, an amount equal to about 20% of global daily oil consumption. No alternative routing exists that can absorb that volume at comparable speed. Saudi Arabia operates the East-West Pipeline, a land corridor that moves crude across the Arabian Peninsula to the Red Sea, bypassing the strait entirely, but that infrastructure has a maximum throughput capacity of approximately 7 million barrels per day. The kingdom typically exports 9 million or more barrels per day under normal conditions, leaving a structural shortfall of at least 2 million barrels that no existing infrastructure can bridge.

The severity of the disruption is already visible in real-time shipping data. Crude tanker transits through the strait fell to just four vessels on the opening Sunday of the conflict, against a daily average of 24 since the start of January. Three of those four vessels were flagged to Iran. Commercial shipping operators and the insurance markets that underwrite maritime risk have not required a formal naval blockade to stop transiting; selective drone and missile strikes against vessels in the area have pushed war-risk insurance premiums to multi-year highs, making passage economically unviable for most operators. The effect is functionally equivalent to a physical closure, achieved without Iran needing to physically seal the waterway with mines or a naval line.

Trump's Ultimatum Resets the Conflict's Calculus

The weekly surge gained decisive momentum on Thursday when President Donald Trump publicly demanded unconditional surrender from Iran, warning that the U.S. military would strike with overwhelming force if Tehran did not comply. That statement reframed the market's working assumption, shifting the dominant scenario from a containable tactical operation toward an open-ended conflict with no fixed resolution timeline. Equity markets responded immediately and sharply. The Dow Jones Industrial Average dropped more than 1,300 points on Thursday, while London's FTSE 100 fell 5.6% and Germany's DAX declined 7.7%, among the largest single-session drops in European blue-chip indices in years.

Qatar's energy minister, Saad al-Kaabi, issued the most alarming official warning to emerge from the crisis, stating publicly that the Gulf state and fellow exporters might halt production within days if tankers remained unable to pass through the strait. Al-Kaabi warned explicitly that crude prices could spike to $150 a barrel within weeks and added that such a scenario could "bring down the economies of the world." The credibility of the warning rested partly on events already in motion. State energy company QatarEnergy had suspended liquefied natural gas production at the world's largest LNG export facility after it sustained damage in an Iranian drone strike earlier in the week. Saudi Arabia, the United Arab Emirates, and other Gulf states issued a joint communique on Thursday pledging to do everything in their power to protect the strait and to support the U.S. military campaign, though the practical mechanisms for fulfilling that commitment remain publicly unspecified.

The conflict has generated cascading energy disruptions well outside the immediate theater of war. U.S. oil major Chevron temporarily shut production at the Tengiz oil field in Kazakhstan after concerns emerged over potential retaliation by Russia for American involvement in the Iran campaign; that field ordinarily contributes approximately 700,000 barrels per day to global supply. Chevron restarted Tengiz output later in the week, but the episode illustrated how quickly the conflict is producing second-order supply risks across geographies with no direct involvement in the fighting. Iran, throughout the week, launched waves of ballistic missiles and drone strikes targeting Israel and U.S. forces across the region, including naval assets in the Red Sea and military installations in Gulf states, while U.S. and Israeli forces continued counterstrikes against Iranian nuclear facilities, missile production sites, and military command infrastructure.

Natural gas markets tracked the crude oil shock with comparable intensity. European benchmark natural gas futures surged more than 30% during the week's most volatile session, driven by the suspension of Qatari LNG production and the heightened threat to tanker traffic through the Strait of Hormuz, which serves as the main artery for LNG exports from Qatar to global customers. U.S. natural gas futures advanced 6.7% over the same period as traders reassessed domestic LNG export capacity and demand dynamics. Europe's vulnerability proved acute because the continent entered the conflict period with natural gas stockpiles already running below seasonal norms, leaving it structurally more exposed than markets with healthier inventory cushions.

Market Pricing and the Macroeconomic Stakes

Commodity strategists at a major Wall Street institution estimated that production cuts across Gulf exporters could approach 6 million barrels per day by the end of next week if the Strait of Hormuz remains effectively closed to commercial traffic. Gulf producers reliant on the waterway, including Saudi Arabia, the United Arab Emirates, Iraq, Kuwait, Qatar, and Oman, collectively hold onshore storage capacity sufficient to sustain normal output for approximately 22 days before inventories are exhausted and production curtailments become unavoidable. Once that threshold is crossed, the same institution estimated that Brent prices could reach $120 per barrel in a disruption scenario lasting more than three weeks.

The macroeconomic dimensions have drawn attention from leading figures in monetary policy. A prominent former Federal Reserve chairman estimated publicly that if oil prices hold at current levels, core personal consumption expenditure inflation, the price measure the Federal Reserve prioritizes when setting interest rate policy, could rise by 0.3 to 0.5 percentage points, with an equivalent drag on U.S. economic output. A separate analysis from a major Wall Street bank estimated that a sustained supply shock at the current pace of escalation could reduce global GDP growth by 0.5 to 0.8 percentage points. At the consumer level, the repricing was already measurable at the pump: the average retail price of a gallon of regular gasoline in the United States jumped nearly 27 cents in the seven days through Thursday, reaching $3.25, the sharpest weekly increase since March 2022, when the Russian invasion of Ukraine sent commodity markets surging.

The Military Picture and the Road Ahead

As of Friday, March 6, U.S. forces remain in active combat engagement with Iran's Islamic Revolutionary Guard Corps, now entering the seventh day of the conflict. The Pentagon has confirmed 32 American service members killed in Iranian retaliatory strikes since operations commenced. Iran's state media announced the appointment of Ali Hosseini Larijani as the country's new supreme leader following the reported death of Ali Khamenei; senior U.S. officials have stated publicly that they believe Khamenei is likely dead, though that claim has not been independently confirmed through primary documentation. President Trump indicated on Thursday that further action to reduce pressure on oil prices is imminent, a signal that Washington is monitoring the economic consequences of the conflict closely even as it presses its military objectives.

Whether the conflict produces a negotiated de-escalation in the days ahead or extends into a third and fourth week will likely determine whether current prices represent a ceiling or a floor. The structural risk embedded in any prolonged shutdown scenario is historically without precedent: no modern disruption has come close to stranding the full volume of crude that transits the Strait of Hormuz on a daily basis. Gulf producers have limited short-run flexibility, and the world's combined strategic petroleum reserves, while substantial, were not designed to substitute for the planet's most critical energy corridor over an extended and indeterminate period. The prospect of $150 oil may sit at the upper end of scenarios currently being modeled by governments and trading desks, but with seven days of armed conflict behind it and no ceasefire in sight, that number no longer reads as a remote hypothetical.

Written by Nick Ravenshade for NENC Media Group, original article and analysis.