Oil has blown past $100 a barrel, the Pentagon is burning through billions by the week, and Defense Secretary Pete Hegseth is promising things are about to get worse. Thirteen days into a U.S.-Israeli war with Iran, the costs — financial, human, and strategic — are compounding fast.
Brent crude surged through the psychologically significant $100-per-barrel threshold on Monday as Iranian forces targeted commercial shipping near the Strait of Hormuz and struck Iraq’s port of Basra — two chokepoints that, together, handle a staggering share of the world’s oil supply. The price spike is the clearest signal yet that global markets are pricing in a conflict with no obvious off-ramp. Fortune noted the milestone as energy traders scrambled to assess just how long this fight might last.
The Bill Is Already Staggering
How bad is it, financially? The Pentagon’s own briefing to Congress put the price tag for just the first week of combat operations at more than $11.3 billion — a figure that left some lawmakers visibly shaken, according to people familiar with the session. Filmogaz documented the estimate, which analysts warn could accelerate sharply if the conflict widens or if Iranian retaliation forces additional carrier group deployments to the region.
That’s a lot of money for seven days. And the meter is still running.
Casualties: The Human Cost
Still, for many Americans, the numbers that matter most aren’t measured in dollars. As of the latest Pentagon update, approximately 140 U.S. service members have been injured in the Iran conflict. Pentagon spokesman Sean Parnell offered some reassurance — “the vast majority of these injuries have been minor, and 108 service members have already returned to duty” — but the briefing also confirmed that eight troops are currently severely injured, a detail that drew far less attention in the official release than the rosier headline numbers.
Eight people. Severely. That distinction matters, even when spokesmen are trained to lead with the better news.
Strikes on Iran’s Nuclear Infrastructure
On Thursday, Israeli forces struck a site identified as ‘Taleghan’ — described as a node within Iran’s nuclear program. The strike represents a significant escalation in what Israel has framed as a separate but coordinated campaign running alongside U.S. operations. Barchart tracked the immediate market reaction, with oil futures spiking on the news before partially retreating as traders weighed the scope of the damage.
It’s not yet clear how central Taleghan was to Iran’s nuclear ambitions. But the symbolism is hard to miss — this conflict has now formally touched Iran’s most sensitive and closely guarded program.
Hegseth’s Warning
Tuesday brought a moment that cut through the usual fog of wartime briefings. Defense Secretary Pete Hegseth, speaking with unusual bluntness, declared that “today will be the most intense day yet of U.S. strikes inside Iran.” JPMorgan flagged the remarks as a key driver of crude’s intraday volatility, noting that language from senior officials is now moving energy markets in real time — a dynamic that hasn’t been seen at this scale since the early days of the Gulf War.
That’s the catch with a conflict this visible, this loud. Every press conference is also a commodity event. Every strike briefing nudges a futures contract somewhere.
What Comes Next
The U.S. Energy Information Administration has been revising its short-term oil outlook almost continuously since the conflict began, with analysts projecting sustained price pressure as long as Hormuz shipping lanes remain under threat. Iran has shown both the will and the capability to disrupt traffic through the strait — and with no ceasefire talks publicly underway, there’s little reason to expect a quick resolution.
Thirteen days in, the war with Iran has produced spiking oil prices, a nine-figure weekly bill, and a Defense Secretary promising the worst is still ahead. Whether that’s a warning or a strategy — or both — may be the most important question Washington isn’t fully answering yet.
