Crude Prices Surge Above $100 a Barrel Amid US‑Iran Tensions

Crude oil prices on the New York and London exchanges climbed to $100 a barrel on Thursday, marking the highest level since May. The spike was driven by the United States’ recent escalation of tensions with Iran, which has raised fears that a conflict could disrupt the Strait of Hormuz—one of the world’s most critical oil transit routes. Brent crude, the benchmark for European markets, and West Texas Intermediate (WTI), the U.S. benchmark, both traded above the $100 mark for the first time in months, prompting a sharp rally in global energy markets.

Petroleum, a complex mixture of hydrocarbons that appears as a dark, viscous liquid, is formed over millions of years from the anaerobic decay of ancient marine organisms such as plankton and algae. The majority of the world’s oil reserves were deposited during the Mesozoic era, with smaller amounts formed in the Cenozoic and Paleozoic periods. Conventional reserves are extracted through drilling, guided by geological surveys that map sedimentary basins and identify petroleum reservoirs. Unconventional sources—oil sands, oil shale, and shale oil—are also being tapped using techniques like hydraulic fracturing. Once extracted, crude is refined by distillation and other processes into fuels and petrochemical feedstocks that underpin everything from transportation to electronics manufacturing.

The U.S. has renewed sanctions and military posturing against Iran after the Iranian Revolutionary Guard’s seizure of a U.S. oil tanker in the Persian Gulf earlier this week. Washington has warned that any escalation could threaten the security of the Gulf’s shipping lanes, while Tehran has accused the U.S. of provocation. Analysts note that even a temporary disruption in the Strait of Hormuz would constrain the flow of roughly 20–30 million barrels of oil per day, enough to push global prices upward. The market’s reaction reflects not only the immediate threat but also long‑term concerns about the durability of U.S. strategic commitments in the Middle East.

Beyond geopolitical risk, the price surge has been amplified by a tightening global supply curve. OPEC+ members have maintained production cuts that were originally designed to support prices during the pandemic, but recent reports suggest that some producers are reluctant to increase output. Meanwhile, global demand has been recovering from the lows of the COVID‑19 pandemic, with industrial activity and travel rebounding in many regions. The combination of a constrained supply and a rebounding demand has pushed prices toward the $100 threshold, a level that historically signals a healthy but increasingly volatile market.

For Taiwan, the rise in oil prices carries several practical implications. The island imports over 90% of its petroleum from neighboring countries, with China and the United States as major suppliers. Higher fuel costs translate directly into higher logistics and transportation expenses, affecting everything from import tariffs to domestic energy bills. The semiconductor industry—Taiwan’s economic backbone—relies on petrochemical feedstocks and energy-intensive manufacturing processes; a spike in raw material prices could compress margins and increase production costs. Moreover, heightened geopolitical tension in the Middle East could ripple through global supply chains, prompting companies to seek alternative routes or diversify sources, a move that could reshape trade patterns in the Asia‑Pacific region.