The global diesel market is experiencing unprecedented pressure, with prices surging at a faster rate than crude oil. According to recent reports, the wholesale price of 50ppm diesel in South Africa rose by R10.95 between March and September 2026, while petrol prices increased by R6.58 during the same period. This disparity has significant implications for industries heavily reliant on diesel, such as trucking, agriculture, construction, and manufacturing. With few quick alternatives available, these sectors are facing substantial challenges.
The ongoing conflicts in the Middle East and Ukraine have disrupted crude oil supplies and damaged refineries, resulting in a shortage of refining capacity. French officials estimate that the global market is currently short about 10 million barrels of crude oil per day. Although some of this impact was initially absorbed by Saudi Arabia redirecting exports and tankers resuming use of the Strait of Hormuz, stockpiles have cushioned the global oil market to some extent. However, global oil stocks have fallen by approximately 507 million barrels since the start of the war.
The diesel shortage is particularly acute due to limited alternatives for industries that rely heavily on this fuel. Economist Paul Krugman argues that the current energy crisis is increasingly a crisis of refined petroleum products rather than crude oil itself. Western countries have banned imports of Russian petroleum products, while Russia has imposed fuel export restrictions. Ukrainian attacks on Russian refineries have further exacerbated the issue, leaving countries that previously relied on Russian supplies to compete for alternative sources.
The global diesel price surge reflects a shortage of refined petroleum products and constrained refinery capacity. Diesel prices have reached record levels in both Europe and the United States, with the US national average hitting $6.52 a gallon (R106) recently. In France, diesel prices reached a record €2.41 (R45) a liter. South Africa is also facing record diesel prices, with projected wholesale prices of R31.80 for October, up from the previous high of R30.62.
According to Janiv Shah, vice president at consultancy Rystad Energy, "Diesel prices have risen across all regions because the disruption is global, but Europe is particularly exposed." The situation is further complicated by attacks on refineries and energy infrastructure in the Gulf region, which have tightened supplies. Even a rapid return to normal shipping through the Strait of Hormuz would not immediately solve the diesel shortage.
There are few immediate solutions to the diesel shortage. A resumption of oil shipments through the Strait of Hormuz could ease some pressure, allowing Asian refineries to receive more crude and increase the availability of refined fuels. However, Toril Bosoni, head of the IEA's oil industry and markets division, warns that if Gulf supplies remain constrained and commercial inventories continue to fall rapidly, higher prices and weaker demand may be needed to close the gap between supply and consumption.
The global diesel market remains vulnerable while refinery capacity is constrained and geopolitical disruptions continue. With diesel demand relatively insensitive in the short term due to limited alternatives, the situation is likely to remain challenging. As the conflict in the Middle East continues, the diesel shortage is expected to persist, placing a heavy burden on economies heavily reliant on diesel for commercial transport.
Key points
- Global diesel shortages are pushing wholesale prices to record levels
- The diesel shortage is particularly acute for industries with few quick alternatives
- A resumption of oil shipments through the Strait of Hormuz could ease some pressure on the diesel market
