Oil is the nervous system of the Iran–US conflict: every escalation transmits into prices within minutes, and every de-escalation unwinds them. The June 2025 war provided a textbook demonstration of how the mechanism works.
The 2025 Case Study
Before Israel's 13 June strike, Brent crude traded in the upper $60s. The attack produced the largest single-day jump in years, with prices leaping toward and beyond $75. As the war escalated and the US struck on 21–22 June, Brent spiked above $80 intraday — pricing in real probability of supply disruption. Then came the tell: when Iran's retaliation proved to be a telegraphed, casualty-free strike on a US base in Qatar — de-escalation dressed as escalation — prices collapsed even before the ceasefire was announced, falling back into the 60s within days. Markets read the signal correctly: the oil was going to keep flowing.
The Anatomy of the Risk Premium
The "war premium" is not about barrels already lost — throughout the twelve-day war, physical supply was essentially uninterrupted. It prices probability × severity of potential disruption:
- Iranian exports (~1.5–2M b/d, mostly to China): the first candidate for disruption via strikes or tightened sanctions
- Gulf transit through Hormuz (~20M b/d): the catastrophic scenario (analysed here) — low probability, extreme severity
- Regional spillover: attacks on Saudi or Emirati facilities, as in the 2019 Abqaiq drone strike that briefly knocked out half of Saudi processing
The Cushions That Kept 2025 Contained
Three factors muted the spike. OPEC+ spare capacity — Saudi Arabia and the UAE held millions of barrels/day of idle production that could offset lost Iranian supply (though notably, that spare capacity itself mostly exits via Hormuz). US shale, which responds to sustained high prices with more drilling. And strategic petroleum reserves across the OECD, built for exactly this scenario.
The Gas Dimension
Natural gas is the under-appreciated risk. Qatar's LNG — around a fifth of global supply — all transits Hormuz, with no bypass. During the war, Asian and European gas prices jumped on the mere possibility; a real interruption would hit Europe (already restructured away from Russian gas) and Asian importers like Pakistan, Bangladesh, Japan and India simultaneously. For import-dependent developing economies, LNG spikes translate directly into power cuts and fiscal crisis — the regional impact is covered here.
The Long-Run Pattern
Since 1979, Iran crises have repeatedly delivered short, sharp spikes that fade unless physical supply is actually hit — the market has learned that both sides work to keep oil flowing even mid-war. The asymmetry to watch: spikes are temporary, but each crisis adds permanent costs — insurance, rerouting, security premiums — that quietly raise the floor under global energy prices, feeding the inflation story.
This article is part of a 20-part analysis series on the Iran–USA conflict covering the complete history, the June 2025 war, the Strait of Hormuz, oil markets, global inflation and future scenarios. Facts reflect the situation as of early 2026.
