Oil prices are climbing again, and the latest move is exposing just how difficult it has become for the global energy market to distinguish between a temporary disruption and a lasting supply crisis.

Brent crude futures for November delivery rose for a second straight session on Tuesday, reaching around $105.47 a barrel, while U.S. West Texas Intermediate climbed to roughly $92.82. The advance came even as crude exports from several major Gulf producers increased, because traders remain concerned that much of that oil is reaching international buyers through expensive and inefficient workarounds rather than normal shipping routes.

That is the unusual feature of the current oil market.

The world is not necessarily running out of crude.

The problem is that getting the crude to the right place at the right time has become much harder.

And in commodities markets, transportation is part of supply.

Data from Kpler showed Middle Eastern crude exports reaching approximately 12.8 million barrels per day in September, the highest monthly level since February. Saudi Arabia and the United Arab Emirates have both increased shipments as producers look for ways around the disruption created by the conflict involving Iran.

On paper, that should be comforting.

More exports mean more barrels available to refiners.

But the market is looking at the route those barrels are taking.

Some crude is being moved through ship-to-ship transfers, an expensive and less efficient process that allows cargoes to be shifted between vessels rather than moving through the usual infrastructure.

That matters because the market cares about reliability as much as volume.

A producer can announce millions of barrels of available crude, but if transportation requires additional transfers, longer voyages or unconventional routing, the effective cost of supplying that oil rises.

That is one reason the geopolitical premium has not disappeared.

At the center of the uncertainty is the Strait of Hormuz.

The waterway is one of the world's most important energy corridors, and any prolonged disruption can affect the movement of crude, condensates, refined products and liquefied natural gas.

The current conflict has already reduced normal tanker movement through the region.

Even when exporters find alternative routes, those alternatives cannot necessarily reproduce the same capacity, speed and cost efficiency.

That is why traders remain sensitive to every headline concerning negotiations between the United States and Iran.

American and Iranian officials have continued talks through intermediaries, but the prospect of a quick resolution remains uncertain. President Donald Trump has denied offering concessions such as lifting sanctions or releasing Iranian funds, while Iranian officials continue to push for conditions linked to the reopening of the waterway.

The market therefore has a familiar problem:

Negotiations exist.

A resolution does not.

This is where the headline numbers can be misleading.

If global exports are recovering, why is Brent still hovering above $100?

The answer lies in the difference between nominal supply and usable supply.

Suppose a producer has the same number of barrels available, but transporting them becomes more expensive, slower or more dangerous.

The physical quantity may not change much.

The effective supply available to buyers does.

That can keep prices elevated.

It is similar to what happens when a major railway becomes blocked. The goods may still exist in warehouses, but the market experiences a shortage because they cannot reach customers efficiently.

Oil is particularly vulnerable to this dynamic because its global supply chain is highly dependent on shipping.

One of the more encouraging developments for the market has come from Saudi Arabia.

The kingdom has resumed crude loadings from Yanbu, a Red Sea export terminal, after restarting the East-West Pipeline. The pipeline had been shut down following drone attacks on September 11.

Reuters reported that Saudi Aramco had informed customers about its October loading schedule and that Yanbu loadings had resumed at approximately 2 million barrels per day.

Kpler estimated pipeline throughput at roughly 2.65 million barrels per day, with the potential to rise toward 3 million to 4 million barrels per day. Before the attacks, the pipeline had a significantly higher flow rate of around 5.5 million barrels per day.

That recovery matters enormously.

Saudi Arabia built the East-West Pipeline partly to give itself the ability to move crude without relying entirely on the Strait of Hormuz.

In a normal market, that redundancy might seem like infrastructure trivia.

During a regional conflict, it becomes a strategic asset.

The latest recovery does not mean the problem is solved.

The Yanbu system itself has come under security pressure.

That highlights a larger problem for Gulf producers.

Diversifying export routes reduces dependence on one chokepoint, but it does not eliminate geopolitical risk.

Pipelines, ports, tankers and refineries are all physical assets.

They can be damaged.

They can be threatened.

They can be forced to operate below capacity.

The oil market is therefore treating infrastructure security as almost as important as production levels.

The crude market is also being influenced by conditions in refined fuels.

Washington has been considering ways to ease pressure in the diesel market, including a proposal that could broaden the sale of so-called red-dyed diesel. That fuel is normally intended for off-road uses, but policymakers are examining whether regulatory changes could increase available supplies amid elevated prices.

The distinction between crude and diesel is important.

A country can have adequate crude inventories while still experiencing tight refined-product markets.

Refineries convert crude into fuels, and their output depends on capacity, maintenance, economics and available feedstock.

Diesel is particularly important because it powers trucks, agricultural equipment, construction machinery and other industrial activities.

If diesel prices remain high, the effects can spread through transportation and production costs.

That can eventually become an inflation problem.

The U.S. inventory picture is also providing an interesting counterpoint.

A recent government report showed U.S. crude inventories increasing, rather than falling, suggesting that domestic supply remains substantial.

Yet the market has continued focusing on international disruption.

That tells investors something important about the current environment.

The price of oil is not being determined solely by how many barrels exist inside the United States.

It is being determined by how much uncertainty surrounds the movement of barrels through the global system.

This is why Brent has remained much stronger than WTI.

The spread between Brent and WTI has become unusually wide during the current crisis.

Brent is more directly exposed to international shipping and Middle Eastern supply conditions.

WTI is more closely tied to the North American market, where domestic production provides an additional cushion.

The divergence is therefore a signal of where the market's fear is concentrated.

Traders are not simply saying "oil is scarce."

They are saying "international oil is harder to move safely."

That is a more precise problem.

The oil rally is also spilling into foreign exchange markets.

Countries that rely heavily on imported energy can see their currencies weaken when crude prices surge because they need more foreign currency to pay for energy.

India's rupee, for example, slipped through the 96-per-dollar level on Tuesday as oil climbed and investors worried about the effect of higher energy costs on the country's external balance. Reuters noted that India imports roughly 90% of its crude oil, making the currency particularly sensitive to energy prices.

That is one reason an oil shock can become a global financial event.

Higher crude costs can weaken importers' currencies.

Currency weakness can raise the local price of imported goods.

Inflation can increase.

Central banks may respond by keeping interest rates higher.

Bond markets then react.

The process can spread far beyond the energy sector.

The U.S. Federal Reserve is facing the same chain of events from another direction.

Oil above $100 can contribute to inflation at exactly the time investors are already debating whether U.S. interest rates need to remain high.

The 10-year Treasury yield has recently climbed near a 19-year high of about 5.27%, while markets have assigned substantial probability to another Fed rate increase in October.

The combination is difficult.

Higher oil supports inflation.

Higher inflation supports tighter monetary policy.

Tighter monetary policy can keep bond yields elevated.

And higher yields can slow economic growth.

That creates the possibility of what economists sometimes describe as a supply shock colliding with restrictive monetary policy.

The oil market is therefore sitting on a knife edge.

A credible agreement between Washington and Tehran could quickly remove some of the risk premium embedded in Brent.

Shipping routes could normalize.

The cost of moving oil could fall.

More barrels could return to normal international channels.

Prices could respond rapidly.

But if negotiations stall, the opposite can happen.

Traders could conclude that the disruption will last longer.

That would increase the value of secure inventories and alternative supply routes.

And if another major energy facility is attacked, the market could immediately begin pricing another round of disruptions.

The most interesting thing about today's market is that supply has not collapsed.

Exports are recovering.

Saudi Arabia is restoring Yanbu.

Some shipping channels are functioning again.

Yet prices remain above $100.

That tells the real story.

The oil market is paying for risk, distance and uncertainty, not simply scarcity.

For consumers, the consequences could be significant if those costs persist.

For central banks, a prolonged oil rally could complicate the inflation outlook.

For energy companies, higher prices can improve revenues while increasing operational risks.

And for financial markets, oil has once again become one of the most powerful macroeconomic variables on the screen.

The next few days may reveal whether the current $100-plus Brent market is a temporary geopolitical spike or the beginning of a longer period of structurally higher energy costs.

For now, the message from the futures market is clear:

The barrels may be coming back. The normal route for getting them to the world is not.