Oil falls below $100 on Iran peace deal hopes as markets rally

Watch the actual barrels moving, not the headlines.
An analyst explains why oil prices may stay elevated even after a potential peace deal, due to months of infrastructure repairs needed.

For the first time in two weeks, oil slipped below $100 a barrel as financial markets dared to imagine an end to the three-month conflict between the United States, Israel, and Iran — a war that had turned the Strait of Hormuz into a chokepoint and added roughly $27 to every barrel of crude. Equity markets in Tokyo and Europe rose in sympathy, reflecting the deep hunger for relief from an energy shock that had already begun reshaping inflation expectations and central bank policy worldwide. Yet seasoned observers counseled patience: the distance between a negotiating framework and a signed agreement remains vast, and even peace, when it arrives, will not instantly undo the months of damage done to Gulf infrastructure and global supply chains.

  • Oil's 6% single-day drop to $97.43 a barrel marked the market's most visible expression of hope since the war began in late February — but that hope rests on talks that both sides describe as unfinished.
  • Iran's blockade of the Strait of Hormuz, the artery through which a fifth of the world's oil flows, remains in place, and Tehran's own spokesperson warned that any deal is 'not imminent.'
  • A handful of tankers — two LNG carriers and an Iraqi crude supertanker idle for nearly three months — began moving through or out of the Gulf on Monday, offering modest but tangible signs that commerce is stirring.
  • Analysts at Barclays and ING cautioned that even a signed agreement would leave months of repair work ahead, as damaged infrastructure across Qatar and the broader Gulf region cannot be restored by diplomacy alone.
  • The war's inflationary shadow stretches well beyond energy: central banks that had been poised to cut rates are now expected to raise them, and food costs tied to disrupted fertilizer supplies are forecast to climb for months regardless of how negotiations conclude.

Oil fell below $100 a barrel for the first time in two weeks on Monday, dropping 6% to settle at $97.43 as investors began pricing in the possibility of a negotiated end to the three-month US-Israeli conflict with Iran. Stock markets joined the rally — Japan's Nikkei rose nearly 3%, Europe's Stoxx 600 gained 1% — reflecting how heavily the war's energy shock had weighed on global sentiment since the first missile strikes on Tehran on February 28.

The optimism, however, arrived with caveats. Negotiators have outlined a framework, but the two sides remain at odds over core issues, most critically Iran's blockade of the Strait of Hormuz. An Iranian government spokesperson was careful to describe any agreement as 'not imminent,' and commodities strategists at ING reminded markets that previous rounds of talks had collapsed without resolution. Barclays maintained a full-year average forecast of $100 for Brent crude, while acknowledging that risks skewed upward — and that reopening the strait would only begin a longer process of repairing the infrastructure scattered across Qatar and the Gulf.

Small physical signals offered cautious encouragement. Two LNG tankers were transiting the strait bound for Pakistan and China, and a supertanker carrying Iraqi crude departed the Gulf for China on Saturday after sitting idle for nearly three months. UBS analyst Giovanni Staunovo kept his focus on what would ultimately matter: actual oil flows, not headlines, remained restricted.

The war had added roughly $27 to every barrel since it began, a surcharge felt across the global economy in the form of rising inflation and reversed central bank guidance. The Bank of England, once expected to cut rates, now faces pressure to raise them twice this year. Gold climbed, Treasury futures rallied, and the pound reached its strongest level since mid-May — all signs that markets were beginning, carefully, to imagine a world after the conflict. Whether that imagination proves justified depends on what negotiators can actually agree to — and on an energy and food system that will take far longer to heal than any peace deal to sign.

Oil dipped below $100 a barrel on Monday for the first time in two weeks, a sharp reversal driven by whispers of a possible end to the three-month war between the US, Israel, and Iran. Brent crude futures, the global benchmark that moves energy markets worldwide, fell 6% to settle at $97.43. Stock markets caught the optimism: Japan's Nikkei climbed nearly 3%, and Europe's Stoxx 600 index rose 1%. The logic was straightforward—if the US and Iran could strike a deal, the Strait of Hormuz, the world's most critical energy chokepoint, might reopen to something resembling normal traffic.

But the relief was tempered by reality. While negotiators have sketched out a framework, the two sides remain locked in disagreement over fundamental issues, particularly Iran's blockade of the strait itself. An Iranian government spokesperson made clear that any agreement was "not imminent," a phrase designed to cool the market's enthusiasm. The strait's near-total closure since late February had sent energy prices into the stratosphere, and traders were learning the hard way that hope and actual resolution are not the same thing.

Warren Patterson, head of commodities strategy at ING, offered a cautionary note to Reuters: the market had been here before, only to watch talks collapse. "Therefore, the market will likely be more cautious about overreacting," he said. Even analysts who believed a deal was possible warned that the real work would come after the ink dried. Barclays forecast that Brent crude would average $100 this year, but acknowledged the risks pointed upward. More importantly, they noted that even if the strait reopened tomorrow, the damaged infrastructure scattered across Qatar and the broader Gulf region would take months to repair. Physical oil flows, not headlines, would ultimately determine prices.

Small signs of movement were visible. Two tankers carrying liquefied natural gas were exiting the strait on Monday, bound for Pakistan and China. A supertanker loaded with Iraqi crude left the Gulf for China on Saturday after sitting idle for nearly three months. These were modest indicators, but they suggested that some commerce was beginning to move again. Giovanni Staunovo, an analyst at UBS, kept his focus on the fundamentals: "We continue to believe that the key factors for the oil market to watch should be the physical oil flows, and so far flows through the strait remain restricted."

Despite Monday's decline, oil remained far above pre-war levels. Before the US and Israel launched their first missile strikes on Tehran on February 28, Brent crude was trading around $70 a barrel. The war had added roughly $27 to the price of every barrel, a tax on the global economy that had rippled through inflation expectations everywhere. Central banks that had been preparing to cut interest rates before the conflict now faced pressure to raise them instead. The Bank of England was expected to increase rates twice this year, a sharp reversal from earlier forecasts.

The broader market reaction revealed how much the war had weighed on investor sentiment. Stephen Innes, an independent analyst, noted that Treasury futures rallied, gold climbed 1.46% to $4,574 an ounce, and equity futures pushed higher as traders began pricing in the possibility of the energy shock finally easing. "The market response made perfect sense," Innes said, "given how much inflation fear and hawkish rate pricing had been embedded into the curve during the recent energy shock." The dollar dipped 0.3% against a basket of major currencies, while the pound gained nearly 0.6% to $1.3506, its strongest level since mid-May.

What remained unclear was whether this optimism was justified or premature. The war had disrupted not just oil but fertilizer supplies and countless other materials critical to global food production. Prices for agricultural inputs were expected to drive food costs sharply higher in the coming months, a consequence that would outlast any peace agreement by a considerable margin. The market was betting on resolution, but the real test would come when negotiators had to actually agree on the terms.

We've been at this stage before, only for talks to break down. Therefore, the market will likely be more cautious about overreacting.
— Warren Patterson, head of commodities strategy at ING
We continue to believe that the key factors for the oil market to watch should be the physical oil flows, and so far flows through the strait remain restricted.
— Giovanni Staunovo, UBS analyst
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why did oil prices fall so sharply on Monday if the deal isn't actually close?

Model

Because markets trade on expectations, not certainties. The mere possibility that the strait might reopen was enough to shift sentiment. Traders were pricing in a scenario where the energy shock finally ends.

Inventor

But the Iranian spokesperson said an agreement wasn't imminent. Doesn't that contradict the market's reaction?

Model

It does, which is why analysts like Patterson are warning people not to get ahead of themselves. We've been at this stage before. The market is hopeful, but cautiously so—at least, it should be.

Inventor

If the strait reopens, won't oil prices just collapse?

Model

Not immediately. Even if a deal is signed tomorrow, the damaged infrastructure takes months to repair. The physical flow of oil won't snap back to normal overnight. That's what Staunovo was emphasizing—watch the actual barrels moving, not the headlines.

Inventor

So oil could stay elevated even after peace?

Model

Exactly. And there's another layer: the war has already baked inflation into the system. Central banks are now expected to raise rates, not cut them. That economic damage doesn't disappear when the shooting stops.

Inventor

What's the real risk here?

Model

That talks collapse again, like they have before. Or that even if they succeed, the global economy has already absorbed a shock it won't easily recover from. The market is betting on the best case. History suggests caution.

Inventor

What are you watching for?

Model

The tankers. The supertanker that left the Gulf on Saturday, the LNG carriers heading out on Monday—those are the real signals. When physical flows start moving consistently, then you'll know something has actually changed.

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