Disruptions affecting refineries, pipelines, and shipping routes can raise energy costs, strain supply chains, and increase economic risk across regional and global markets.

Why You Should Care

Oil markets depend on more than crude production. Oil must be transported, refined and delivered before it reaches consumers and businesses.

That makes infrastructure across the supply chain economically significant. A disruption at a refinery can reduce fuel availability. A disruption along a shipping route can increase transportation costs. A disruption at a major chokepoint can delay large volumes of energy reaching international markets.

The economic impact can also begin before a physical shortage develops. When markets perceive a higher risk to future supplies, prices can incorporate a risk premium. Shipping and insurance costs can also rise as companies reassess routes and exposure.

The Details

Refineries can create a separate supply shock

Refineries convert crude oil into products such as gasoline, diesel and jet fuel. This means a disruption to refining capacity can affect fuel markets even when crude production remains available.

Recent disruptions have highlighted this distinction. European fuel prices have remained elevated as refinery outages have reduced available supplies, while limited spare refining capacity has made it difficult for other facilities to compensate quickly. Reuters reported that European gasoil futures reached unusually high premiums over crude as refining capacity tightened.

The effect can extend beyond fuel companies. Diesel is particularly important because it powers freight transportation, agriculture and industrial equipment. Higher diesel costs therefore increase the cost of moving goods and operating businesses.

Shipping disruptions increase the cost of moving energy

Energy does not have to be physically destroyed to become more expensive.

When vessels avoid a major shipping route, they often have to travel farther. That increases fuel consumption, voyage times, and insurance costs. It can also reduce effective tanker availability because ships spend longer completing each journey.

The Red Sea provides a clear example. Oil flows through the Bab el Mandeb Strait averaged about 4 million barrels per day during the first eight months of 2024. This is down from 8.7 million barrels per day in 2023, according to the US Energy Information Administration. At the same time, oil flows around the Cape of Good Hope increased. 

The longer route also has a measurable economic cost. EIA estimates that a journey between the Arabian Sea and Europe around the Cape of Good Hope takes roughly 15 additional days compared with the route through Bab el Mandeb and the Suez Canal. That additional time means higher shipping costs and delayed deliveries, even without a comparable reduction in global oil production.

Major chokepoints concentrate economic risk

The Strait of Hormuz represents an even larger exposure. The strait is critical to global energy shipments as 20% of global oil and 20% of liquefied natural gas (LNG) flow through it. On a daily basis, 20 million barrels of crude, condensate, and fuels flow via the waterway.

The concentration extends beyond crude oil. Hormuz is also important for petroleum products and LNG shipments. This means disruption can affect several energy markets simultaneously.

The economic significance of the chokepoint lies in the limited ability to replace its capacity quickly. Even if alternative routes exist, they may not be able to absorb the same volumes without higher transportation costs and longer delivery times.

Fuel markets can tighten even when crude remains available

Crude availability does not always tell the full story of fuel-market conditions.

A refinery converts crude into fuels that businesses and consumers use directly. If several refineries experience disruptions at the same time, other facilities may struggle to compensate, particularly when global refining capacity is already operating at high utilization.

Reuters reported in September that global diesel markets were facing tight supply, with Middle Eastern diesel shipments falling by roughly half between March and August compared with the previous year. European diesel futures had also risen sharply from the beginning of 2026. 

This creates a different type of economic shock from a crude oil shortage. The immediate pressure appears in diesel, gasoline, and jet fuel markets. The consequences then spread to transportation, logistics, agriculture, and manufacturing.

The Ripple

The effects of an energy infrastructure disruption can extend well beyond the facility or route directly affected. Higher oil and fuel prices can raise operating costs for businesses, while more expensive shipping can increase the cost of importing and exporting goods. These pressures can eventually reach consumers through higher transportation and production costs.

Shipping and insurance costs are another channel. When vessels take longer routes or face higher perceived risks, the cost of moving energy increases. The experience of the Red Sea showed how quickly shipping patterns can change when vessels avoid a major maritime route. 

The consequences can also extend to inflation and trade. Higher fuel and transportation costs can raise expenses across manufacturing, agriculture, logistics, and other energy-intensive industries. Countries that depend heavily on particular suppliers or routes may also need to source energy from more distant markets, potentially at a higher cost.

The investment implications can be longer lasting. Persistent disruption risks can increase the value of additional storage, alternative pipelines, spare refining capacity and diversified supply sources. For energy exporters, higher prices can support revenues when exports continue, but infrastructure disruptions can also reduce volumes and increase operating and insurance costs. For importers, the main exposure is through higher energy and transportation costs.

What to Watch

The immediate focus will be on how quickly disrupted refineries, pipelines and export facilities can return to operation. The longer an outage lasts, the greater the potential for tighter fuel markets and higher costs. Spare refining capacity and available inventories will therefore be important indicators of how much of a disruption markets can absorb.

Shipping routes will also remain important. If vessels continue to avoid major energy chokepoints, longer journeys could keep transportation and insurance costs elevated. The ability to redirect energy through alternative routes will determine how much additional pressure these disruptions place on global supply chains.

For businesses and investors, the broader issue is whether repeated disruptions lead to lasting changes in energy infrastructure and trade flows. Greater investment in storage, alternative routes, spare capacity, and diversified supply could become increasingly important as companies assess their exposure to concentrated energy infrastructure.