US crude tops $100 as Iran attacks Hormuz and Ukraine targets Russian refineries

Crude oil prices surged sharply on Friday, 16 October 2026, as Iran escalated attacks in the Strait of Hormuz, Houthi militants fired missiles at Saudi Arabia, and Ukraine resumed strikes on Russian refineries.

Brent futures hit a session high of $110 per barrel for the first time since May before closing at $109.86, marking a gain of 3.7%. Meanwhile, U.S. West Texas Intermediate rose 3.5% to settle at $101.41 per barrel, according to reporting from Cnbc and Yahoo Finance.

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Supply concerns intensified as attacks around the Strait of Hormuz surged. According to data provided by Kpler, shipments through the waterway stood at 9.4 million barrels per day for the week ended Wednesday, representing about 70% of the average before the conflict. The International Maritime Organization confirmed that at least three seafarers have been injured and two are missing following the recent marine attacks.

Alternative export routes also faced active security threats. A Saudi-led military coalition reported intercepting a ballistic missile headed for the Red Sea port of Yanbu, alongside two cruise missiles destroyed over the Red Sea and three drones downed in Saudi Arabia's southern and Riyadh regions. Yanbu serves as a critical oil hub allowing Saudi Arabia to export crude while bypassing the Strait of Hormuz. Additional strikes hit Aden International Airport in southern Yemen, where the Aden Security Department blamed the Iran-aligned Houthi group for the attack.

In Eastern Europe, the energy ceasefire previously attempted between Ukraine and Russia unraveled. President Volodymyr Zelenskyy declared that Kyiv would resume strikes on Russian refineries in retaliation for ongoing Russian attacks on Ukrainian infrastructure. Industry sources reported that Russia's Ryazan oil refinery suspended operations at a primary crude distillation unit following a drone attack in the region.

Financial markets reacted heavily to the sustained energy shocks. Wall Street experienced a major liquidity drain as technology stocks shed more than $1 trillion in market value during a single session, according to analysis from IFZ RAN. Institutional investors rapidly rebalanced portfolios as surging oil prices threatened operating margins for energy-intensive technology firms and artificial intelligence infrastructure. Global bond markets also faced pressure from higher energy costs feeding into sticky inflation expectations.

Governments and international bodies moved to address tightening global supplies. The International Energy Agency agreed to release more than 20 million barrels of fuel to the market. Additionally, the U.S. Department of Energy issued a request for proposal for an exchange of up to 17 million barrels of crude oil from the nation's Strategic Petroleum Reserve.

Consumers continued to feel the impact at the pump. In the United States, AAA data placed average diesel costs at $6.33 a gallon, more than 70% above the same period last year.

U.S. Crude prices were further driven higher by a commercial inventory draw of more than 8 million barrels for the week ended 9 October 2026, largely caused by production shut-ins along the Gulf Coast from Hurricane Isaias, as logged by the Energy Information Administration.

Market participants continue to monitor physical energy inventories, shipping insurance rates, and central bank commentary to determine whether the elevated price environment will persist or prompt further policy shifts.