Siebert Blog

Geo-Petro-Politics Is Back With a Vengeance

Written by Mark Malek | September 09, 2026

The market is pricing a growing risk of energy disruption as Brent crosses $100 and investors reconsider the outlook for inflation and rates.

KEY TAKEAWAYS

  • The Hormuz Superstorm has entered a more dangerous phase. The conflict has shifted from attacks involving commercial tankers toward direct targeting of U.S. military assets.

  • The escalation is spreading beyond one confrontation. Iranian retaliation, U.S. strikes on tankers, and Houthi attacks on Saudi energy infrastructure show that this is increasingly a multi-front conflict.

  • Brent crude crossed $100 a barrel for the first time since July, while WTI moved into the mid-$90s. The important signal is not the round number itself, but the additional geopolitical risk premium the market is beginning to price.

  • The timing creates a significant complication for monetary policy. August CPI arrives Friday, followed five days later by a Fed meeting in which markets are already assigning meaningful odds to another rate hike.

  • Equities have remained surprisingly calm despite the escalation. The S&P 500 remains near record territory, suggesting investors have not yet concluded that the energy shock will materially derail the economy or earnings.

MY HOT TAKES

  • The important escalation is not simply that more missiles are flying—it is that the target set has changed. Moving from commercial vessels to American warships materially increases the risk of miscalculation and a broader military response.

  • $100 oil is less important as a psychological milestone than as evidence that markets are beginning to price future supply disruption. If crude continues higher, geopolitics quickly becomes an inflation, Fed, consumer, and valuation story.

  • Investors should be cautious about treating any single Fed probability tracker as authoritative right now. When forecasts diverge materially, the disagreement itself is useful information about how uncertain the policy outlook has become.

  • Energy shocks have a uniquely fast transmission mechanism into the real economy. Consumers do not need to read a Fed statement or an earnings report to notice higher gasoline, heating, freight, and ultimately goods prices.

  • The stock market’s resilience should not automatically be interpreted as proof that the danger has passed. Markets can simultaneously be rational about long-term fundamentals and complacent about low-probability risks.

  • You can quote me: “The market isn't just pricing today's disruption, it's pricing the odds of more disruption to come.”

 

Letters from the field. My longtime followers know that I like to refer to my notebooks often. I just go on the record and make it clear that I really do have notebooks. Notable is my orange notebook in which I inscribe the date at the start of each day using my signature Pelikan Royal Blue (Königsblau) ink. It’s real. My co-workers will attest to my saying things like, “got it–it’s in my orange notebook.” That means “don’t worry, it will get done!” Also in the orange notebook is a page with a scorecard. You see, I've been keeping a kind of scorecard on the Hormuz Superstorm since it started–tanker strikes, real tanker traffic, sanctions rounds, diplomatic thaws that never quite held. This week the scorecard changed categories on me. We went from tankers to warships. The IRGC fired ballistic missiles, twice in two days, not at oil carriers, but at a U.S. aircraft carrier and a guided-missile destroyer. Washington's answer: five Iranian tankers destroyed. Tehran's answer to that: missiles aimed at an American base in Jordan. And sitting quietly underneath all of it, Brent crude crossed $100 a barrel this morning for the first time since July. When the target list upgrades from cargo to combatants, so should our attention.

 

Let me be precise about what actually happened, because precision is the first casualty when headlines turn into headlines-of-headlines. On Tuesday, U.S. Central Command said its forces destroyed five Iranian crude oil carriers with four struck in the Gulf of Oman, a fifth near Kharg Island–after the Islamic Revolutionary Guard Corps twice targeted an American warship with ballistic missiles over the preceding two days. CENTCOM says American forces directed the tankers' crews to abandon ship before the vessels were rendered inoperable. No American casualties. The warship itself evaded both attempts, and kept right on patrolling.

 

Iran's answer arrived quickly. The IRGC said it retaliated by launching missiles toward American forces at a base in Jordan. Jordanian officials say their air defenses intercepted eighteen of them, with two falling in unpopulated areas–a claim I'd treat as directionally accurate rather than gospel, since it's coming from a single official source in a story that is still very much writing itself as I type this.

 

Layer one more development on top: Houthi forces, aligned with Iran, struck multiple energy facilities inside Saudi Arabia this same week, injuring dozens of civilians and forcing temporary shutdowns at several sites. Different actor, same broader campaign. It's a good reminder that the Hormuz Superstorm was never a single-front weather system. This thing has bands.

 

Which brings me to the number sitting quietly underneath all of it. This morning, Brent crude crossed $100 a barrel for the first time since July. WTI is trading in the mid-$90s. The round number matters less than what it signals–the market isn't just pricing today's disruption, it's pricing the odds of more disruption to come. Goldman Sachs raised its year-end Brent and WTI forecasts by five dollars apiece this week and flagged, as a tail scenario rather than a base case, a world where Brent tops $120 if Gulf output stays meaningfully below prewar levels. I want to underline "tail scenario." Wall Street loves running the math on worst cases. That doesn't make the worst probable, just…possible. It simply means it's now a case worth having an answer for, filed away, orange notebook or otherwise.

 

Here's where the Superstorm stops being a geopolitics story and becomes a portfolio story–what I've been calling geo-petro-politics, because energy shocks and monetary policy have become nearly inseparable this cycle. The August CPI report lands Friday morning. Five days after that, the Fed's rate-setting committee meets under Chair Kevin Warsh, who used his Jackson Hole speech last month to make clear he isn't ready to declare victory on inflation. His words, not mine: this summer's readings, better than expected, "do not tell me that underlying trends have meaningfully improved." Markets have been whipsawing on hike odds ever since, and depending on which tracker you check, you'll get a meaningfully different probability–which tells you the market itself hasn't settled on an answer either. I can tell you that my go to tracker–Bloomberg’s Fed Fund Futures-based model (WIRP <GO>)--gives a 65% probability of a hike next week. However, I'd treat any single number you see quoted on this front with a raised eyebrow this week. Oil sitting at $100 a barrel, arriving two days before a closely watched inflation print, is not going to make Warsh's job any easier.

 

And somewhere underneath the futures contracts and the probability trackers, there's a much simpler transmission line running straight into a gas station. Energy costs show up fast, and they show up everywhere–heating bills, freight costs, the number on the pump. It's the kind of price move that doesn't wait for an earnings call to matter to a household budget. It just shows up.

 

And yet–this is the part I want to leave you with–the stock market has been almost boringly polite about all of this. The S&P is sitting within a stone's throw of record territory. No panic selling, no spike in volatility that would suggest Wall Street thinks the world is ending. That's either wisdom or complacency, and in my experience it's usually both at the same time, holding hands. My orange notebook scorecard doesn't have a column for "panic" yet, and I'm not adding one today. What it does have is a column for "watch closely," and that's where this week's entries are going.

 

I'll keep filling pages. That's what the notebook is for. And when the ink runs low–Königsblau doesn't come cheap, and neither, apparently, does crude oil this week–I'll refill both and keep the scorecard current.

 

YESTERDAY’S MARKETS

Stocks fell Tuesday as investors weighed escalating Middle East tensions and rising oil prices ahead of Friday's inflation report. The Dow Jones Industrial Average dropped 626 points, or 1.17%, to close at 52,787. The S&P 500 declined 0.58%, while the Nasdaq Composite slipped 0.32%. West Texas Intermediate crude extended its rally for a sixth straight session, with Brent crude touching roughly $99 a barrel intraday before easing back.

 

NEXT UP

  • No major economic releases today.

  • Important earnings today: Jersey Mikes, Core & Main, Sailpoint, Chewy, American Eagle Outfitters, Navan, and AeroVironment.