Crude oil jumps as Gulf tensions keep Hormuz closed

Crude prices advanced sharply on Wednesday as the conflict between the United States and Iran deepened and traders priced in a longer disruption around the Strait of Hormuz. The market moved higher on fading hopes that the key shipping lane would reopen quickly, keeping supply risk at the center of trading. The latest jump also fed fresh concern that higher energy costs could spill into inflation.

WTI crude for October delivery was last trading up $2.98, or 3.20%, at $96.01 a barrel. That move came after several days of escalating military and political pressure in the region. The rally reflected not only the immediate risk to shipments, but also the possibility that the disruption could persist long enough to affect broader energy pricing.

U.S. Energy Secretary Chris Wright said in a Sunday interview with ABC News that Washington may not be able to reach an agreement with Iran on its nuclear program. On the same day, Mohsen Rezaei, secretary of Iran’s Supreme National Security Council, announced plans for a maritime exclusion zone beyond the Strait of Hormuz. The statement pointed to a widening of Iran’s effort to control traffic around one of the world’s most important oil chokepoints.

Iran’s Islamic Revolutionary Guards Corps later said the restricted area would stretch from Chabahar on Iran’s southeastern coast into parts of the Gulf of Oman and the Arabian Sea. The IRGC said the exact coordinates would be released later and warned vessels crossing the zone could face sanctions. That added a new layer of uncertainty for tankers, insurers and buyers already watching the Strait closely.

Strait of Hormuz risks shake energy markets

The latest moves came after U.S. forces attacked three Iranian oil tankers on September 5, followed by continued strikes and counterstrikes between the two sides. Late Tuesday, the U.S. military said it had destroyed five Iranian crude carriers after accusing Iran of firing ballistic missiles at a U.S. Navy warship. The sequence of events reinforced concerns that the confrontation is moving beyond rhetoric and into direct interference with energy transport.

For oil markets, the immediate issue is less about demand and more about whether supply can move safely through the region. The Strait of Hormuz is a critical route for crude exports from the Gulf, so any restriction can quickly affect global pricing. With no clear sign of de-escalation, traders are treating the risk as an inflationary shock rather than a brief geopolitical headline.

What traders are watching next

Market participants are now focused on whether the exclusion zone is enforced and whether shipping activity is further constrained near the Gulf of Oman and Arabian Sea. The size and duration of any disruption will matter more than the initial announcement, because persistent delays or rerouting can tighten physical supply. That is why the reaction in crude has been strong even before any confirmed long-term closure beyond the Strait itself.

The situation also leaves energy markets sensitive to any new military action or diplomatic signal. If the standoff continues, fuel costs, freight rates and broader inflation expectations could stay elevated. For now, the main driver is the risk that the region’s most important oil corridor remains unstable.

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