The closure of the Strait of Hormuz — one of the world’s most vital oil shipping routes — has ignited the sharpest disruption in physical oil markets in decades. With roughly 20% of global oil supply trapped in the Gulf due to ongoing conflict, buyers are racing to secure alternative sources, sending regional benchmarks soaring.
While the international Brent crude benchmark slipped back to around $100 per barrel, prices for physical deliveries — particularly in Oman — are surging. On Tuesday, Oman crude hit nearly $154 per barrel, a record driven by urgent competition for volumes still flowing outside the Strait. This highlights a widening dislocation between futures benchmarks and real-world oil prices.
Oman Crude Becomes the Global Focal Point
Oman has become the unexpected bellwether for regional oil pricing. Its exports, unaffected by the Strait closure, are now in unprecedented demand. With supply lines from the Gulf under threat, refiners are scrambling for crude grades similar in quality to medium-sour Gulf barrels.
This surge in demand is not confined to Oman. According to Argus Media, oil from Norway, Algeria, Libya, and Kazakhstan is now trading at record premiums. The Algerian Sahara Blend, in particular, has seen soaring interest from petrochemical industries, where feedstock shortages are causing production delays.
Asian Refiners Face Soaring Costs
Refineries across Asia — especially in Japan, Thailand, Indonesia, Vietnam, and Singapore — are facing serious operational challenges. Many of these facilities are not optimized to easily switch crude types, especially when dealing with unfamiliar chemical profiles.
According to Sparta Commodities, the cost of crude for Asian refiners has nearly doubled since the outbreak of the Iran conflict. Complicating matters further are shipping bottlenecks. With demand for tankers up, rerouted shipping lanes, and rising bunker fuel prices, transportation costs have skyrocketed.
Even when a substitute crude is available, older refineries often hesitate to adapt quickly, risking output disruption and further cost escalation.
Benchmarks vs Reality: A Disconnected Market
The crisis has revealed the limitations of traditional benchmarks like Brent and WTI, which have remained relatively stable due to their focus on lighter, sweeter crude grades with low sulfur content. In contrast, much of the trapped Gulf oil is heavier and sulfur-rich, which is especially critical for refiners in Asia and parts of Europe.
Moreover, benchmark contracts represent futures deliveries — in this case, May — allowing traders to bet on eventual stability. But physical oil buyers need supply now, and that urgency has created a striking price gap.
As Saxo Bank’s head of commodity strategy notes, “this is the biggest disruption since the 1970s.” Yet benchmark prices barely reflect the chaos unfolding in the physical market.
Strategic Implications for Asia
For Asian economies, the crisis has exposed a key vulnerability: overreliance on Gulf crude. While some diversification exists, most of the region’s refining infrastructure is geared toward Gulf specifications.
Countries like India, China, South Korea, and Japan may need to revisit long-term procurement strategies. Investments in refining flexibility, as well as alternative supply partnerships with Africa and Central Asia, could become a priority.
Energy security in Asia now hinges not just on availability but on logistical agility and technical adaptability in refining.