Oil Prices Climb as US-Iran Tensions Stoke Strait of Hormuz Supply Fears

Oil prices extended their rally on Tuesday as escalating military tensions between the United States and Iran heightened fears of a potential disruption to crude shipments through the critical Strait of Hormuz. The gains build on a nearly 3% rise in the previous session.

As of 7:28 a.m. ET, key benchmarks were trading significantly higher, according to pricing data from Investing.com:

• Brent crude futures for November delivery rose 1.8% to $92.11 per barrel.
• West Texas Intermediate (WTI) crude futures climbed 2.2% to $87.67 per barrel.

Geopolitical Flashpoint Ignites Supply Fears

The latest surge follows a U.S. military strike on Iranian targets on Larak Island, which broke a weeks-long lull in direct conflict. Iran subsequently retaliated by launching missiles at a U.S. military facility in Jordan, prompting U.S. President Donald Trump to vow a strong response, the source material reported.

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Market focus is centered on the Strait of Hormuz, a vital maritime chokepoint for a significant portion of global energy supplies. The primary concern for investors is that the escalating conflict could deter tanker operators from using the route. These fears were underscored by a warning from the United Kingdom Maritime Trade Operations on Monday, which reported that a tanker was attacked by three unidentified aerial systems as it exited the strait.

Broader Supply Picture

The geopolitical risk premium is currently overshadowing other market fundamentals, including a planned production increase from OPEC+. The producer group is set to add approximately 188,000 barrels per day to its output quotas starting in September, completing a phase-out of earlier voluntary cuts.

Adding to supply tightness in refined products, Russia announced it would extend its ban on diesel exports through September 30. In the U.S., President Trump stated that oil acquired under a new agreement with Venezuela would be used to replenish the Strategic Petroleum Reserve (SPR), which stood at a near 44-year low of 290 million barrels as of August 21. The timeline for these potential SPR refills remains uncertain.