| Brent Crude Just Crossed $100. Here Is the Price Path That Got It There. | | Written by Evan Brooks · September 9, 2026 | |
| The Setup | - Brent crude crossed $100 per barrel on September 9 for the first time since July. WTI settled at $94.92. Goldman Sachs said Brent exceeding $120 is now plausible if shipping attacks intensify.
- The US struck four Iranian tankers in the Gulf of Oman and one near Kharg Island — Iran's primary oil export hub — on September 9, per US Central Command. Iran targeted US bases in Kuwait and the UAE in response.
- WTI gained 9% in the week ending September 3 as markets repriced Hormuz disruption risk. The US national average diesel price hit a record $5.90 per gallon on September 9, per AAA.
| | | From $72 to $100: The Anatomy of a Crude Rally Nobody Fully Priced | | Brent crude fell to $72 per barrel in June after the US and Iran announced a short-lived agreement to reopen the Strait of Hormuz. The market took that as a ceiling on the conflict's supply impact. That assumption held for roughly six weeks. When hostilities resumed in late August, traders who had sold oil on the diplomatic signal began unwinding positions with less conviction than they had established them — and the gap between where oil was priced and where the physical market was tightening became visible quickly. By September 3, WTI had recovered $19 from its June low. By September 9, Brent had crossed a round number that carries psychological weight precisely because it is a round number. | | The physical constraint driving that recovery is the Strait of Hormuz, through which roughly a fifth of the world's oil supply travels in peacetime. The strike on Kharg Island — Iran's largest oil export terminal, responsible for approximately 90% of the country's crude exports — shifted the market's risk distribution most sharply. An attack that damages export infrastructure is categorically different from attacks on shipping lanes: the former disrupts supply at the source rather than in transit, and repair timelines are measured in weeks, not days. Ryan McKay, senior commodity strategist at TD Securities, described the dynamic to Bloomberg: Iran is not backing away from controlling the Strait, which keeps the probability of further escalation elevated as the US routes traffic through an alternative Omani corridor. | |
| The Equity Spillover Markets Are Still Underweighting | | Energy led the S&P 500 on September 1 — the only sector to finish higher on a day the broader index fell 0.71% to 7,631. That sector rotation is the straightforward part of an oil shock: integrated producers, refiners, and pipeline operators reprice upward as crude does. The less straightforward part is the knock-on to the rate decision the Federal Reserve faces on September 16. Fed Chair Kevin Warsh noted in his August 28 Jackson Hole address that AI data center investment is contributing to inflation through construction and memory chip costs. He did not name oil. But the Cleveland Fed's September 8 nowcast, which put headline CPI at 3.38% for August, was built on data collected before this week's Brent move. A sustained energy shock that feeds into September's CPI — the number the committee carries into its December meeting — changes the path-of-hike calculus beyond a single meeting. | | The $120 Scenario and What Would Have to Hold for It to Arrive | | Daan Struyven, co-head of global commodities research at Goldman Sachs, told CNBC on September 9 that $120 Brent is plausible if shipping attacks intensify. The condition that would get prices there is not simply continued hostilities — it is hostilities that materially reduce the volume of crude successfully transiting either the Hormuz corridor or the Omani alternative. Saudi Arabia's decision to hold its flagship crude price unchanged for October, reported September 3, was read by some analysts as a signal of less market tightness than feared. That reading may be premature: Saudi pricing decisions are made on the prior month's data, and Kharg Island was struck after that pricing was set. The variable Goldman's scenario hinges on — whether attack volume on tankers in the alternative route rises — has not yet resolved. What has resolved is that the market is no longer treating the June ceasefire as a durable floor. | | | | Sources: Bloomberg · CNBC · Reuters · CNN · Al Jazeera · Rigzone · AAA · TD Securities · Goldman Sachs | |
