Crude oil markets moved higher on Tuesday as the prospect of a breakthrough agreement between Washington and Tehran receded further, with President Donald Trump's demand for compensation from Iran over historical damages serving as a fresh obstacle to diplomatic progress. Brent crude futures climbed $1.4 to settle at $89.12 a barrel, a gain of 1.6%, while West Texas Intermediate futures added $1.35, or 1.64%, to reach $83.48 a barrel. The gains followed a substantially stronger performance on Monday, when both benchmarks surged more than 5% to their highest levels since late July, driven by shifting expectations around a potential accord.

The fundamental issue keeping prices elevated stems from competing demands that have widened the gulf between the two parties. Trump responded to Iran's initial conditions for a peace deal by insisting that Tehran pay reparations for casualties resulting from wars, attacks, and civil unrest—a position that significantly complicates any path toward normalizing relations and reopening one of the world's most critical energy chokepoints. The U.S. president later emphasized that America maintains control of the Strait of Hormuz and has cleared the strategic waterway of Iranian mines, a statement that underscores the military dimension underlying these negotiations.

Market analysts note that the divergence between Washington and Tehran reflects deeper structural obstacles to any imminent resolution. Tim Waterer, chief market analyst at KCM Trade, observed that the widening gap in negotiating positions has eroded much of the optimism that accumulated during the previous week, leaving oil markets in a state of cautious strength. The uncertainty surrounding when—or if—the Strait will return to normal shipping levels has created a bid tone in crude prices, as traders price in prolonged supply constraints and elevated risk premiums for vessels transiting one of the world's busiest shipping lanes.

The cascading consequences of this geopolitical standoff extend far beyond headline price movements. Refinery operations across the Middle East have already begun responding to the uncertain environment. Saudi Aramco announced that it has postponed the restart of its Jazan refinery, which operates at 400,000 barrels per day, until August 30 following claimed Houthi attacks on the facility over the weekend. This delay further tightens available refining capacity in the region and signals how deeply the security situation is penetrating supply-side decision-making.

The Houthi threat represents a secondary but increasingly potent constraint on energy flows through the region. Beyond the Strait of Hormuz itself, the Bab el-Mandeb—the narrow waterway connecting the Red Sea to the Gulf of Aden—has emerged as another vulnerability for shipping. Waterer emphasized that the persistent risk of chokepoint disruption, whether through actual incidents or credible threats, keeps marine insurance costs elevated and forces operators to utilize longer and more expensive shipping routes. These friction costs accumulate across the global energy supply chain, effectively widening the premium embedded in crude prices.

Data on actual physical flows underscore how significantly maritime traffic has already contracted. In the week ending August 7, exports of crude oil and refined products through the Strait of Hormuz averaged just 3 million barrels per day, a sharp decline from 4.4 million bpd the previous week, according to analysis from Barclays. Vessel counts paint an even starker picture: shipping traffic through the Strait dropped to a mere six vessels on Monday, compared with a 10-day moving average of approximately eleven vessels. These figures demonstrate that traders and shipping firms are already behaving as though disruption risk has materially increased.

Yet despite these apparent constraints, some oil continues to reach markets through alternative channels that bypass the formal chokepoints. Ship-to-ship transfers at sea and overland pipeline routes have become workarounds for avoiding the Strait, allowing Iranian crude in particular to circumvent official surveillance and sanctions regimes. IG analyst Tony Sycamore notes that if these grey-market flows persist at meaningful volumes, the market will likely remain anchored in a relatively narrow trading band between $75 and $95 per barrel, reflecting a balance between genuine supply disruption and continued leakage through informal channels.

The behavior of major regional producers reveals how they are adapting to the new environment. The Abu Dhabi National Oil Company (ADNOC) has issued its eighth spot crude tender since early June as the UAE state-owned enterprise moves to evacuate oil inventories from inside the Strait of Hormuz. This defensive repositioning suggests that even the Gulf's largest producers recognize the heightened risk profile and are taking precautionary measures to ensure that their crude reaches international buyers before any potential escalation.

For Malaysian energy consumers and policymakers, this regional crisis carries direct implications. Any sustained closure of the Strait of Hormuz would dramatically increase crude costs and redirect shipping traffic through longer Asian routes, raising energy prices and transportation expenses across Southeast Asia. Malaysia's refineries and petrochemical complexes, which depend on relatively stable global crude availability and pricing, face upside risk if negotiations remain stalled. The uncertainty surrounding Iran-U.S. relations has become a structural feature of global energy markets, and diplomatic progress—or continued deterioration—will likely remain a dominant influence on crude valuations throughout the coming months.