Global oil prices experienced a sharp rise of over 1% on August 31, 2026, amid escalating military tensions in the Strait of Hormuz. The surge followed a direct US military strike against Iranian rocket launch sites, which subsequently led to a swift retaliatory action from Tehran, further fueling concerns over global energy security and stability in the Middle East.
US Targets Iranian Rocket Positions
US forces confirmed they targeted two rocket positions on Larak Island after observing units from the Islamic Revolutionary Guard Corps (IRGC) preparing to deploy sea-mine-laden rockets into the critical shipping passage. Navy Capt. Tim Hawkins, a spokesperson for US Central Command, stated, "I can confirm that earlier today U.S. forces struck two Iranian launchers on Larak Island. Islamic Revolutionary Guard Corps forces were observed preparing to launch rockets with sea mines into the Strait of Hormuz." This intervention marked the first known US strike in Iran since late July.
Iran Responds with Ballistic Missiles
Within hours of the US strike, Tehran responded by firing ballistic missiles at a US airbase located in Jordan. The IRGC declared further retaliation, indicating a deepening of the broader Middle East conflict, which has now entered its sixth month. The rapid exchange of military actions has significantly heightened regional volatility.
Impact on Global Oil Markets and Shipping
The escalating conflict immediately impacted global energy markets. Brent crude futures saw a gain of $1.08, or 1.23%, reaching $89.18 a barrel. Similarly, US West Texas Intermediate (WTI) crude increased by 92 cents, or 1.10%, to hit $84.32. Analysts cited fresh fears over global energy security as the primary driver for the price hikes.
Commercial operations through the Strait of Hormuz, a vital artery for international fuel supplies, have been severely threatened. Shipping registers revealed a significant drop in visible commodity vessels navigating the route over the weekend, with only five vessels recorded per day. This reduction underscores deep anxiety among maritime operators, following an incident on Saturday where a tanker inbound through the strait was reportedly hit by a projectile.
US Strategic Petroleum Reserve Refill
Amidst the market volatility, US President Donald Trump announced on Sunday that crude oil secured under a recent deal with Venezuela would be routed to refill the US Strategic Petroleum Reserve. This national reserve has been hovering near a 44-year low, and the move aims to bolster US energy security in the face of rising global instability.