Trump ultimatum to Iran risks oil shock amid Hormuz standoff
48-hour threat to strike power plants heightens supply disruption fears as Brent crude tops $112
President Donald Trump issued a 48-hour ultimatum to Iran late Friday, demanding the immediate reopening of the Strait of Hormuz or threatening to "obliterate" Iranian power plants, according to posts on his Truth Social account. The escalation comes as the critical waterway—through which approximately 20% of global oil supply flows—remains effectively closed after nearly four weeks of conflict.
West Texas Intermediate crude climbed to $98.09 per barrel on Friday, while international benchmark Brent crude settled at $112.36, a sharp increase from the $65-$70 range recorded before the conflict erupted in late February. The International Energy Agency has authorized a coordinated release of strategic petroleum reserves to help stabilize energy markets, with the U.S. Treasury temporarily easing sanctions on Iranian oil loaded before March 20 to inject approximately 140 million barrels into global supply.
Defense contractors have emerged as significant beneficiaries of the escalating tensions. Lockheed Martin rose 3.3%, RTX gained 4.7%, and Northrop Grumman surged 6%, with all three reaching 52-week highs. Three weeks into the conflict, the major defense primes have posted double-digit gains as analysts anticipate a substantial congressional supplemental spending package to replenish munitions stockpiles.
The broader equity markets have shown signs of strain. The S&P 500 Index is down 1.5% year-to-date as of March 6, though the average stock within the index has risen 3.2%. The CBOE Volatility Index has climbed amid heightened uncertainty, reflecting investor concerns about the economic impact of sustained energy price inflation. U.S. gasoline prices have reached four-year highs, with the national average for a gallon of regular exceeding $3.84.
Economists are increasingly focused on oil price thresholds that could trigger an economic downturn. According to [analysts at Morningstar], oil reaching $140 per barrel and sustaining that level for several months could tip the U.S. economy into recession, while a price of $175 would almost certainly cause a contraction. Fitch Ratings projects that Brent crude could average $120 in 2026 if the Strait remains closed for six months, or $100 for a three-month disruption.
The ultimatum contradicts earlier signals from the Trump administration suggesting a potential winding down of the Iran conflict. Instead, tensions have intensified following the confirmed death of Iran's Supreme Leader Ali Khamenei on March 1 and subsequent joint U.S.-Israeli strikes on Iranian nuclear infrastructure. The conflict has already disrupted supply chains beyond energy, affecting helium, pharmaceutical drugs, and fertilizer components that threaten global food security and add to inflationary pressures.