Crude oil benchmarks climbed on Tuesday as prospects for resolving the US-Iran standoff and reopening the critical Strait of Hormuz dimmed following fresh demands from President Donald Trump. Brent crude futures advanced $1.4 to settle at $89.12 per barrel, representing a 1.6% gain, while US West Texas Intermediate crude climbed $1.35 to $83.48 a barrel, also posting a 1.64% increase. The modest but meaningful gains reflect investor anxiety about energy supply disruptions in one of the world's most strategically vital waterways.
The momentum builds on a stronger performance the previous day, when both benchmarks surged more than 5% to levels unseen since late July. That rally was triggered by Trump's introduction of new preconditions for any settlement with Iran, specifically demanding that Tehran provide compensation for casualties sustained across various conflicts, military operations and civil disturbances. The addition of reparations to the negotiating table represents a significant complication for diplomacy aimed at de-escalating regional tensions and restoring normal shipping through the Strait of Hormuz.
Trump further asserted American control over the strategically vital waterway and claimed that the United States had cleared Iranian mines from the shipping corridor. These pronouncements underscore the deep gulf between Washington and Tehran regarding what any eventual agreement might entail and the conditions each side deems non-negotiable. Tim Waterer, chief market analyst at KCM Trade, captured the growing pessimism among traders, observing that divergent positions suggest fundamental disagreements about the structure of any potential accord. The analyst noted that optimism built up during the previous week is now being systematically unwound, with oil prices gaining a distinctly upward bias as investors hedge against further deterioration.
Beyond the diplomatic breakdown, supply-side challenges continue to constrain flows through contested sea lanes. Saudi Aramco has postponed the restart of its Jazan refinery, which has a production capacity of 400,000 barrels per day, until August 30 following claimed Houthi attacks on the facility over the weekend. The Houthi-claimed strikes underline how regional instability extends beyond US-Iran bilateral relations to encompass broader proxy conflicts that threaten petroleum infrastructure and shipping routes. According to Waterer, the supply risks posed by both the Strait of Hormuz and the adjacent Bab el-Mandeb passage remain dangerously elevated, with even the prospect of partial disruptions or intermittent incidents pushing up marine insurance premiums and compelling shipping companies to adopt lengthier, costlier alternative routes.
Barclays analysts reported that during the week ending August 7, combined crude oil and refined product net exports through the Strait of Hormuz averaged just 3 million barrels per day, a sharp decline from 4.4 million barrels daily in the preceding week. This substantial drop highlights how geopolitical tensions are already materially impacting energy flows through the corridor. Vessel traffic data corroborates the slowdown, with just six ships transiting the strait on Monday compared against a ten-day average of approximately 11 vessels. The reduction in shipping activity signals that companies are either deferring operations or rerouting around the region in anticipation of potential further disruptions.
Nonetheless, critical petroleum flows continue to find alternative pathways through ship-to-ship transfer operations and overland bypass infrastructure, preventing a complete halt to supplies. Tony Sycamore, an analyst at IG, suggests that assuming these workaround mechanisms persist, oil markets will likely enter a period of muted volatility, with prices oscillating within a band spanning $75.00 to $95.00 per barrel. This technical assessment reflects an expectation that while supply constraints remain binding, they have not yet reached levels that would provoke dramatic price movements or trigger systemic market shocks.
For Malaysian and broader Southeast Asian economies, the implications warrant serious consideration. The region depends substantially on energy imports, and elevated oil prices translate directly into higher costs for manufacturing, transportation and power generation. A prolonged period of supply uncertainty in the Persian Gulf would reinforce inflationary pressures already affecting regional currencies and investment returns. Moreover, if diplomatic efforts continue to falter, the risk of unintended military escalation grows, which could trigger much sharper and more destabilising price spikes.
The Abu Dhabi National Oil Company has intensified its efforts to move petroleum supplies out of the Strait of Hormuz, issuing spot crude tenders with increasing frequency. This represents the eighth such offering since June, underscoring efforts by the UAE state oil company to relocate inventory away from the contested waterway before conditions potentially deteriorate further. Such defensive repositioning by major producers signals genuine apprehension about the durability of current arrangements and the possibility of abrupt access restrictions.
The current situation illustrates how geopolitical friction between major powers can quickly contaminate global energy markets, affecting economies far removed from the immediate conflict zone. For policymakers in Kuala Lumpur and across the region, the unfolding dynamic demands vigilant monitoring of both diplomatic progress and contingency planning for an extended period of elevated energy costs and logistical uncertainty.
