Brent crude pushed through the $100-per-barrel mark — oil's big psychological level — in the latest session, though West Texas Intermediate (WTI), the US benchmark, has yet to reach triple digits. Brent is the reference grade for much of the world's internationally traded crude, which is why its climb into triple digits resonates well beyond the trading floor. Technically, however, the more important line was the $93.50 level crude flirted with a day earlier. For a moment it looked as if prices could reject that threshold, but in the latest session they cruised straight through it.

WTI is trading up $2.85 at a session high of $95.81 per barrel. That advance clears the July high and extends a distinct series of higher lows since the MOU peace deal low in early July — the structure traders read as confirmation that buyers keep defending progressively higher ground.

Fundamentally, the move hands Trump a real problem, the Investinglive commentary argues. Rumors of peace deals are now being routinely ignored by the market, and it is abundantly clear that both sides are hunkering down.

For Iran, this is an existential struggle. There is talk of regime collapse, and while no one can say whether that will unfold, the country has proven an ability to curb flows through the Strait of Hormuz — the chokepoint that carries roughly a fifth of the world's oil. Even in the narrower scenario in which only Iran's oil is blocked by the United States, that would still amount to a material drain on global supplies — one that is starting to bite.

On the US side, the task is guessing what Trump will do, which is near-impossible. Some recent messaging has told Americans that higher prices are the price they must pay for a non-nuclear Iran, or blamed the Russia-Ukraine conflict, but that is a tough platform heading into the midterms.

Then there is the gasoline on the fire: the price of gasoline itself, which is ratcheting higher. Diesel has already hit records, and gasoline is starting to take off, including a record for the Labor Day weekend. RBOB wholesale gasoline for October delivery is climbing alongside — the benchmark contract for wholesale US gasoline, and a gauge of what drivers eventually pay at the pump.

There has to be a breaking point somewhere, the analysis argues, and a spike now could almost be welcome in creating the pressure for peace. The risk is that Trump grows too proud — particularly after the midterms — and turns a blind eye to an oil spike.

The deeper problem is that energy inflation can spill over into broader inflation expectations. Sovereign yields are already rising everywhere, with US 10-year yields within striking distance of 5% — a level that ripples into mortgage, corporate, and government borrowing costs — while Japan's 30-year yields sit just 2 basis points from 4%. At some point that boomerangs back into stock markets.

Even so, the assessment concludes, the market is still a long way from that breaking point. Until it arrives, the markers to watch are whether WTI follows Brent into triple digits and whether the run of higher lows holds, with the record-setting fuel complex offering a real-time read on how much of the crude move is already reaching consumers.