Oil prices fall 5% on US-Iran deal hopes, Strait of Hormuz reopening

roughly one-fifth of all petroleum flows through those waters
The Strait of Hormuz's closure has constrained global oil supply since fighting began in February.

Nos mercados de energia, a esperança pode mover montanhas — ou pelo menos barris. Com negociadores americanos e iranianos avançando em direção a um acordo que poderia reabrir o Estreito de Ormuz, fechado desde o início dos conflitos em fevereiro, os preços do petróleo recuaram quase 5% neste domingo, sinalizando que a diplomacia, mesmo incerta, já exerce peso real sobre a economia global. Para milhões de motoristas americanos que iniciaram o feriado do Memorial Day pagando US$ 4,51 por galão — 51% a mais do que antes da guerra —, a pergunta que fica é se a paz chegará rápido o suficiente para aliviar o verão.

  • O fechamento do Estreito de Ormuz desde 28 de fevereiro represou cerca de 20% do petróleo mundial, mantendo os preços em patamares elevados por meses a fio.
  • A simples perspectiva de um acordo entre Washington e Teerã foi suficiente para derrubar o Brent a US$ 98,83 e o WTI a US$ 92,03 — as mínimas em duas semanas.
  • Analistas do JPMorgan projetam que, se o estreito reabrir em junho, o petróleo pode se estabilizar em torno de US$ 97 por barril até o fim do ano.
  • Enquanto os mercados antecipam alívio, os motoristas americanos vivem o Memorial Day mais caro em quatro anos, com a gasolina 51% acima dos níveis pré-guerra.
  • A defasagem entre os futuros do petróleo e os preços nos postos garante que qualquer acordo diplomático demorará semanas para chegar ao bolso do consumidor.
  • As negociações seguem abertas e sem desfecho garantido — mas a mera probabilidade de sucesso já moveu bilhões de dólares nos mercados globais de commodities.

Os preços do petróleo recuaram com força neste domingo após avanços nas negociações entre Washington e Teerã sobre um possível acordo de paz no Oriente Médio. O Brent caiu quase 5%, chegando a US$ 98,83 o barril, enquanto o WTI recuou mais de 4%, a US$ 92,03 — ambos nas mínimas de duas semanas. O otimismo girou em torno da possibilidade de reabertura do Estreito de Ormuz, bloqueado desde o início dos combates em 28 de fevereiro.

O estreito é uma artéria vital da economia global: por ele passa aproximadamente um quinto de todo o petróleo comercializado internacionalmente. Seu fechamento manteve os preços pressionados por meses. Analistas do JPMorgan estimam que, caso a via reabra em junho, o barril deve se estabilizar em torno de US$ 97 até o final do ano — um cenário de relativo alívio em relação aos picos recentes.

Para os americanos, porém, esse alívio ainda não chegou. O feriado do Memorial Day — início informal da temporada de viagens de verão — foi marcado pelo preço médio de US$ 4,51 por galão, o mais alto em quatro anos e 51% acima dos níveis anteriores à guerra. A Associação Americana de Automóveis prevê que os preços permaneçam elevados ao longo do verão.

A razão para essa defasagem é estrutural: os mercados futuros reagem rapidamente a notícias diplomáticas, mas os postos de gasolina ajustam seus preços de forma mais lenta, conforme refinarias processam estoques e reprogramam a produção. Assim, mesmo que um acordo seja firmado em breve, milhões de motoristas já comprometidos com planos de verão deverão pagar caro pelo combustível antes de qualquer alívio real. A diplomacia corre contra o relógio do verão americano.

Oil prices fell sharply on Sunday as negotiators from Washington and Tehran moved closer to a deal that could end months of Middle Eastern conflict and reopen one of the world's most critical shipping lanes. Brent crude dropped nearly 5 percent to $98.83 a barrel, while West Texas Intermediate fell more than 4 percent to $92.03—both hitting their lowest levels in two weeks. The decline reflected growing optimism that the Strait of Hormuz, effectively sealed since fighting erupted on February 28, might soon resume normal operations.

The strait's closure has created a persistent squeeze on global oil supply. Roughly one-fifth of all petroleum flowing through international markets passes through those waters, and the blockade has kept prices elevated for months. Any reopening would immediately ease that constraint, allowing crude to move freely again from the Persian Gulf to markets worldwide. Analysts at JPMorgan have modeled what that scenario might look like: if the strait opens in early June, they expect oil to average around $97 per barrel through the end of the year—suggesting prices could stabilize at levels closer to what traders saw before the conflict began.

For American drivers, however, the relief has not yet arrived. Memorial Day weekend, which fell on May 25, marked the unofficial start of summer travel season—traditionally one of the busiest periods for road trips and family vacations. The timing was unfortunate. The average price for a gallon of gasoline on Sunday stood at $4.51, a figure that made headlines not just for its absolute level but for what it represented: a 51 percent jump since the war started nearly four months earlier. The American Automobile Association noted that this holiday weekend was the most expensive for fuel in four years, and their forecasts suggested prices would remain elevated throughout the summer months ahead.

The gap between wholesale crude prices and what consumers pay at the pump reflects the lag built into energy markets. Oil futures can swing sharply on news and expectations, but gasoline prices at filling stations adjust more slowly as refineries work through existing inventory and adjust production schedules. Even as traders bet on a diplomatic breakthrough, millions of Americans were already committed to summer plans, locked into paying premium prices for fuel they had already purchased or would need to purchase before any price relief materialized.

The negotiations themselves remained fluid. No final agreement had been announced, and the diplomatic process could still falter. But the mere fact that serious talks were underway—talks that included provisions for reopening the strait—was enough to shift market sentiment. Traders were pricing in a probability of success, and that probability alone was powerful enough to move billions of dollars in global commodity markets. The question now was whether diplomacy could move fast enough to deliver relief before the summer driving season reached its peak.

The American Automobile Association noted that this holiday weekend was the most expensive for fuel in four years
— AAA analysis
La Conversación del Hearth Otra perspectiva de la historia
Inventor

Why did oil prices fall so sharply on just the possibility of a deal? Shouldn't traders wait until something is actually signed?

Model

Markets don't wait. They price in probabilities. If there's a credible chance the strait reopens in June, traders start repositioning now—selling futures contracts, adjusting hedges. The moment that probability shifts, prices move.

Inventor

But the Strait of Hormuz has been closed for nearly four months. Why did it take this long for serious negotiations to happen?

Model

Wars don't resolve on a schedule. Both sides needed time to assess their positions, absorb costs, and recognize that a military solution wasn't working. Diplomacy often only becomes possible once the pain is undeniable.

Inventor

The article mentions gasoline prices are up 51 percent since the war started. That's enormous. Why haven't we seen more public outrage?

Model

People are angry, but anger and action are different things. Most Americans can't redirect their summer plans on short notice. They're locked in. And there's a lag—crude prices are falling now, but gas stations won't reflect that for weeks. The pain is still fresh.

Inventor

JPMorgan expects oil to average $97 a barrel if the strait reopens. That's still higher than pre-war levels, isn't it?

Model

Yes. Even with the strait open, there's structural damage to the market. Refineries have adjusted, some supply chains have shifted. You don't snap back to exactly where you were. $97 is the new normal if things stabilize.

Inventor

What happens if the negotiations fail?

Model

Prices spike again. The market is holding its breath. If talks collapse, you'd see crude jump back toward $110, $115. The relief everyone's hoping for evaporates.

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