How Ukraine’s drone strikes on Russia crippled the world’s second largest diesel supplier

Ukraine’s drones attacked Russia’s refineries and connected oil infrastructure. Targets included fuel storage tanks, complex refining equipment, and an oil export terminal in St. Petersburg. These facilities matter because they process crude oil, produce fuels, and move diesel toward overseas buyers.

The attacks became more frequent and more sophisticated. Strikes on refineries and related infrastructure rose from 11 in January to 31 in July. Ukraine also hit Russia’s largest refinery at Omsk, deep in Siberia. Destroying a storage tank can interrupt operations briefly, but damaging a secondary refining unit can halt production for months because replacement equipment must come through difficult, sanctions-affected supply chains.

The result was a sharp loss of Russian diesel exports. Kpler data showed shipments falling to 141,000 barrels per day in September, from 608,000 barrels per day a year earlier. Russia banned exports in July to protect domestic supplies, then resumed limited shipments this month.

Russia’s diesel exports fell from 608,000 barrels per day in the same period last year to 141,000 barrels per day in September. That is a decline of more than 75 percent. The drop followed Ukrainian strikes on refineries and related oil infrastructure, which reduced Russia’s ability to produce and ship fuel.

The Trump-Putin agreement promised about 75,000 barrels per day for October and 124,000 barrels per day for November. Those volumes are far below Russia’s earlier export level. Even the November promise equals only about one-fifth of the 608,000 barrels per day shipped during the comparison period last year.

Tatiana Mitrova called the promised volumes a rounding error compared with total demand. Matt Smith said restoring the proposed supply would probably require an energy ceasefire. Without one, continuing attacks could prevent Russia from returning significant diesel volumes to global markets.

Diesel is a liquid fuel made by processing crude oil. It powers many trucks, buses, ships, generators, farm machines, and other diesel engines. Crude oil is the raw petroleum mixture extracted from underground. It contains many different hydrocarbons and cannot generally be used as finished diesel without refining.

A refinery separates crude into useful products and changes some of them into fuels with specific properties. Diesel is one of those products, alongside others such as gasoline and jet fuel. This distinction matters because crude oil supplies and diesel supplies are not the same thing. A country may have crude available but still lack enough working equipment to make diesel.

The article’s crisis centers on diesel production and trade. Ukrainian attacks damaged Russian refineries and oil infrastructure, while Middle Eastern disruptions reduced exports through the Strait of Hormuz. Together, those losses tightened diesel supplies and helped push prices higher.

A storage tank mainly holds fuel, so repairing one usually involves restoring a relatively straightforward structure. Tatiana Mitrova said a destroyed fuel tank can take only a couple of weeks to fix. That allows a facility to resume storing and moving products comparatively quickly.

A secondary refining unit performs a more specialized processing job inside a refinery. Replacing it requires the right industrial equipment, advance orders, and supply chains that may extend beyond Russia. Mitrova said sanctions make the process harder because companies and counterparties face legal and commercial risks. The needed unit cannot simply be ordered immediately.

If the equipment is destroyed, the refinery may lose part of its ability to make fuels for several months. This is why newer Ukrainian attacks have had a larger effect than attacks limited to easily replaced tanks. The damage can reduce production capacity, not merely interrupt storage.

Other countries can supply some replacement diesel, but the article describes no quick way to replace all the lost volume. Russia and the Middle East together removed about 1 million barrels per day from global diesel exports, according to Matt Smith. That is a large gap for other producers to cover.

The main limit is refining capacity, not simply the availability of crude oil. Refineries must process crude into diesel, and many are already running hard. U.S. refiners are working at maximum capacity to fill as much of the gap as possible. Shipping disruptions also matter: diesel exports through the Strait of Hormuz are down about 540,000 barrels per day from last year.

The shortfall is therefore spread across production and transport. Russia’s damaged facilities cannot quickly restore output, and Middle Eastern routes remain disrupted by attacks. The International Energy Agency warned that diesel supplies will likely remain constrained well into 2027, keeping prices elevated.

Diesel prices rise when the global market loses available fuel. Refineries convert crude into diesel, while shipping routes move that fuel to countries that need it. Damage at either stage reduces supply. When supply falls but drivers, freight companies, farms, and businesses still need fuel, buyers compete for fewer available barrels.

The article gives two major examples. Ukrainian attacks cut Russia’s diesel exports to 141,000 barrels per day in September, from 608,000 a year earlier. Separately, diesel exports through the Strait of Hormuz fell about 540,000 barrels per day because of attacks involving Iran and its Houthi allies. Smith estimated global diesel exports were down about 1 million barrels per day.

That combined shortage raises the cost of fuel reaching markets. AAA put the national average diesel price at $6.32 per gallon on Tuesday, nearly 75 percent above the same period last year. The article says tight supplies and elevated prices may continue into 2027.

A refinery first heats crude oil and separates its components by their different boiling points. It then sends selected streams through additional processing units. Those units adjust the material into finished products such as diesel. The article specifically highlights secondary refining equipment, which can be difficult to replace after an attack.

This means crude oil volume is only part of the supply picture. A refinery needs functioning equipment, workers, energy, and supporting infrastructure to turn crude into usable fuel. If a secondary unit is destroyed, the plant may be unable to make normal fuel volumes even if crude oil can still arrive. Replacing that unit can take several months.

The article says available refining capacity is the underlying problem in the current crisis. U.S. refiners are already working at maximum capacity, while wars have damaged refining and export systems. As Russian and Middle Eastern supplies shrink, other producers have limited spare capacity to make up the difference.