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Monday, June 29, 2026 · 14580 stories tracked

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Oil & Refining · WEEKLY BRIEF

Oil climbs as U.S.-Iran fighting resumes and Russian refinery strikes cut a quarter of output

Andy Will, Chief Editor · Monday, June 29, 2026

Crude prices were higher early Monday after a fresh U.S.-Iran escalation over the weekend. The move up was slower than you'd expect, because traders are still betting on a peace deal and largely ignoring the bullish signals piling up underneath. For anyone buying fuel downstream, watch the gap between what the market is pricing and what's actually happening.

Crude

The price reaction was delayed because traders keep pricing in a return to calm in the Strait of Hormuz and a quick normalization of flows. A growing number of analysts think that's too optimistic.

Their argument is twofold. One, the assumption that Hormuz traffic snaps back fast may be wrong if the U.S. and Iran keep trading strikes. Two, global inventories are still drawing down, and the market is treating that as background noise.

Rystad Energy is a good example of how fast the mood shifted. Two days before the weekend, Rystad pulled forward its forecast for Middle East production to recover to pre-war levels, moving it up three months to the end of this year, on the strength of peace talks. Then new strikes hit the headlines. The forecast that looked solid on Friday now rests on negotiations that just got shakier.

Middle East crude output had already rebounded to between 14.6 and 15 million bpd earlier this month under the ceasefire. That's the supply side recovering. The question is whether it holds if the fighting keeps flaring.

Refining

The bigger near-term story for fuel buyers is on the refining side, and it's in Russia. Fuel shortages have spread across more than 50 Russian regions after refinery strikes knocked out about a quarter of the country's refining output.

A quarter is a serious number. When you take that much processing capacity offline, crude can keep flowing out of the ground while the finished product, the gasoline and diesel that actually goes in tanks, gets tight. That's a refining squeeze, and it shows up at the pump faster than a crude move does.

The domestic shortages inside Russia matter for the global balance too. A country forced to ration its own fuel has less product to export, and diesel is the barrel that moves global freight. Less Russian product on the water tightens the market other buyers draw from.

So the setup right now is crude supply recovering on one side and refined-product supply getting cut on the other. Those two forces don't net out cleanly. They pull crack spreads in opposite directions, and where the spread lands decides margin for refiners and price for buyers.

Crack spreads

Here's the mechanic. The crack spread is the gap between what a refiner pays for crude and what it gets for the gasoline and diesel it makes. When crude supply rises and product supply falls, that gap widens. Refiners with working capacity make more money per barrel.

Russian refineries running at three-quarters of capacity can't capture that. Refiners outside the strike zone can. If product stays tight while crude holds or eases, refining margins look healthy for the operators still standing.

For the fuel buyer, a widening crack is the part of the price that doesn't move with the crude headline. You can watch oil tick down on a ceasefire rumor and still pay more at the rack, because the squeeze is in the refined product. The crude itself can be flat. That disconnect is live right now.

Ethanol

One side note worth flagging. The auto sector is giving ethanol a second look, with reports that interest in ethanol as a fuel is gathering momentum after years of the conversation being all about electric. The source material here is thin, so treat it as a signal to watch rather than a shift you can size yet. If automakers and blenders lean back toward ethanol, that could shift demand at the margin for the corn-based gallon and change the blend economics fuel marketers plan around.

What to watch

The U.S.-Iran exchange is the swing factor. If strikes keep coming, the Rystad timeline for Middle East production recovery slips, and the market's bet on a calm Hormuz starts looking expensive. Watch whether crude's reaction speeds up or stays delayed; a faster move means traders are finally pricing the risk.

Russian refinery repairs are the other clock. If a quarter of output stays down for weeks, product tightness builds and diesel cracks widen, which flows straight to what fleets and marketers pay. If repairs come fast, the squeeze eases.

And keep an eye on global inventories. The drawdown analysts are pointing to hasn't shown up in prices yet. If stocks keep falling while the market stays complacent, the correction could be sharp when it lands. The ethanol noise is a slower burn, but worth a quarterly check.