Oil’s new reality: It’s not about supply, it’s about access

The oil market is no longer asking how much crude is being produced. It is asking who gets it, and when 

Over the past week, attention has focused on the number of strikes across ports, refineries, power plants and LNG facilities in the Gulf. Depending on assumptions, the direct loss of wellhead, pipeline and refinery liquids to market may already exceed 1 million barrels per day. That figure alone is significant. But it remains secondary to the larger question hanging over the Strait of Hormuz.

Even if Hormuz begins to flow again in something close to normal volumes, the region’s infrastructure is clearly vulnerable. The market is now being forced to price not just a temporary blockage, but the risk of ongoing disruption to oil and gas facilities. Each passing hour of uncertainty adds incremental supply chain strain, and Brent has begun to reflect that reality.

There are various scenarios between full closure and full normalisation. Even a return to 75% of normal transit would present a severe logistical challenge. Insurance costs, naval escorts and rerouting all reduce effective supply. Freight markets are already reacting accordingly. Prompt tanker rates are surging, sharply raising landed crude procurement costs.

In this environment, traditional pricing logic begins to break down. The landed price of crude grades becomes less relevant when freight cannot be reliably fixed and spot premiums are difficult to establish. The market shifts from price optimisation to access management.

The West is relatively long crude and less dependent on Arabian Gulf supply than the East. It also holds freight advantages. Asia, by contrast, is more exposed to Gulf flows. As a result, refining runs in Asia are more at risk than in Europe or the United States. That divergence is already appearing in product markets via East-West spreads.

Brent-Dubai spreads may widen further regardless of freight direction. There is effectively no competition for the marginal Western barrel into Asia if Gulf supplies are constrained. In that context, Dubai-linked pricing can tighten independently of freight economics, while Brent can move in ways that do not necessarily align with historical arbitrage logic.

Freight costs themselves are becoming a direct transmission mechanism. Aframax rates to Europe imply roughly $9 per barrel to move WTI into the Atlantic Basin, pushing prompt WTI-Brent spreads wider. VLCC routes to Asia are similarly expensive. Yet benchmark differentials do not always adjust cleanly to reflect this because physical flows are constrained by risk, not simply by economics.

The longer the stand-off persists, the more structural these shifts become. Refiners must make procurement decisions based on security of supply rather than margin optimisation. Strategic reserves in the US, Europe, China, Japan and South Korea provide buffers measured in months, but releasing stocks is a policy decision. Governments may choose to loan or auction volumes to smooth disruption, but those tools are not immediate substitutes for steady Gulf exports.

Infrastructure risk now extends beyond crude production. There are concerns around storage capacity, with reports suggesting some export terminals may face tank-top pressures if flows remain restricted. Ullage becomes part of the conversation. Even if Hormuz reopens, infrastructure security will remain in question for some time.

Products will increasingly act as the demand-adjustment valve. Refining margins may need to rise to justify higher crude procurement costs and ensure available barrels flow eastward. Natural gas pricing is already signalling potential substitution toward fuel oil and crude in power generation where possible.

For now, the market’s priority is evidence that Hormuz can move safely and consistently, including clarity on insurance and escort arrangements. Without that, prices will continue to reflect supply chain risk rather than just supply loss.

This is no longer simply a production story. It is a logistics and allocation story. In a fragmented and risk-sensitive market, oil does not disappear evenly. It becomes a question of access, geography and timing. And that is where volatility truly begins.

The writer of the article is Neil Crosby, AVP Oil Analytics at Sparta