Petroleum prices jumped sharply on Thursday amid intensifying geopolitical uncertainty surrounding the Strait of Hormuz. Brent crude climbed 4% to $106.34 per barrel, while West Texas Intermediate saw a similar move up to $93.66. These increases followed a period of volatile trading in the wake of claims and counterclaims from officials in Tehran and Washington, which unsettled global energy markets.
Mounting Diplomatic Tensions And Legislative Moves
The latest developments center on Washington-Tehran negotiations, which showed little progress this week. Iranian authorities rejected suggestions that meaningful diplomatic contact is underway and outlined a series of preconditions, including asserting full Iranian control over the Strait of Hormuz, the narrow waterway linking the Persian Gulf to international shipping lanes. The strait accounts for the transit of about 20% of the world’s petroleum exports and serves as a key chokepoint for energy transportation.
In parallel, lawmakers in Iran, overseen by a conservative-dominated parliament, are preparing a law to impose transit charges on ships requesting passage through the strait. The Fars news agency reported that this legislative proposal is slated for completion within the next week. Iran’s Foreign Minister Abbas Araghchi stated that passage remains open to select nations, specifically India, China, Russia, Iraq, and Pakistan, with all other countries facing new restrictions.
Market Reactions And Economic Concerns
The ongoing tensions have largely paralyzed tanker shipments through the strait since late February. Ships seeking authorization from Tehran must provide detailed crew and cargo documentation to the Islamic Revolutionary Guard Corps. These requirements, combined with uncertainty over the resumption of normal activity, continue to drive volatility across energy markets.
On the corporate side, BlackRock, a prominent U.S.-based asset management firm overseeing over $10 trillion in assets, has expressed concern over the potential for additional price spikes. President Rob Kapito commented at a Melbourne conference that even an immediate ceasefire might not stabilize markets in the near term. Kapito pointed out the difficulty of reestablishing disrupted supply networks in the aftermath of such a large-scale blockage. He noted,
Market participants may be underestimating the scale of risk, as oil prices could rise to $150 per barrel regardless of a truce, given the time required for global supply chains to recover.
Meanwhile, officials within the U.S. government are reportedly conducting scenario analyses for oil climbing as high as $200 per barrel, examining the possible knock-on effects for both domestic and global economies. Brent has tracked toward its sharpest monthly advance since 1990, with intramonth highs near $120 per barrel.
Additional instability emerged Wednesday after a Turkish-operated tanker carrying Russian oil was damaged in a drone incident near Istanbul, creating new risks for maritime shipping and further complicating energy trade.
Researchers at Capital Economics, a UK-based independent macroeconomic research firm, warned that persistent disruption through the strait could have global financial consequences comparable to those seen following Russia’s incursion into Ukraine in 2022. This, in turn, could prompt central banks to revisit tighter monetary policy.
The effects have been rapid in Asia, where fuel and electricity prices spiked. Thailand enacted gasoline hikes of 22%, while the Philippines suspended its wholesale electricity spot market, and agricultural costs in India and China have increased. U.S. consumers also continue to experience a steady climb in fuel expenses. In diplomatic developments, the White House adjusted the upcoming summit between President Trump and Chinese President Xi Jinping to mid-May in Beijing.
