South Africa records largest diesel price increase in history as Strait of Hormuz closure drives fuel shock

South Africa recorded the largest single monthly fuel price adjustment in the country’s history on 1 April 2026, with diesel prices rising by 7.51 rand per litre for the low-sulphur 0.005% grade and 7.37 rand per litre for the 0.05% sulphur grade, even after the government applied an emergency 3 rand per litre cut in the general fuel levy to cushion the impact. Petrol prices for both the 93 and 95 Unlead grades rose by 3.06 rand per litre. The adjustments, announced by the Department of Mineral and Petroleum Resources under Minister Gwede Mantashe, took effect at midnight on 1 April 2026 and immediately pushed the per-litre diesel price past the previous all-time high of 25.53 rand set in July 2022.

The scale of the April 2026 fuel price increases reflected a convergence of global supply disruptions and long-standing structural vulnerabilities in South Africa’s domestic fuel supply chain. The immediate trigger was the escalation of military conflict in the Middle East, which began on 28 February 2026 when the United States and Israel launched strikes on Iran. Iran’s subsequent closure of the Strait of Hormuz, one of the world’s most strategically critical oil shipping lanes, removed a significant proportion of global crude supply from international markets and sent oil prices surging past 100 United States dollars per barrel.

How did the US-Israel strikes on Iran and Strait of Hormuz closure drive South Africa’s April 2026 fuel price surge?

The average Brent Crude oil price rose from 69.08 United States dollars per barrel to 93.67 United States dollars per barrel during the fuel pricing review period, a rise of approximately 38%. International petroleum product prices followed the same upward trajectory. These factors drove increases to the Basic Fuel Price formula used by the Central Energy Fund of 9.49 rand per litre for diesel and 5.26 rand per litre for petrol. Data from the Central Energy Fund as of 26 March 2026 showed average underrecoveries of 10 rand per litre on 0.005% low-sulphur diesel and 9.86 rand per litre on 0.05% diesel. Illuminating paraffin, relied on by millions of lower-income South African households for cooking and heating, carried the largest average underrecovery at 11.46 rand per litre. Petrol underrecoveries stood at 5.76 rand per litre for 95 Unlead and 5.24 rand per litre for 93 Unlead.

Why is South Africa so vulnerable to Middle Eastern oil supply disruptions affecting the Strait of Hormuz?

South Africa’s exposure to supply disruptions through the Strait of Hormuz is acute relative to similarly sized economies. Approximately one quarter of the country’s crude oil imports and nearly one third of its total fuel supply are sensitive to disruptions along that route. The country now refines less than 35% of the fuel it consumes domestically, a structural shift that accelerated sharply after the 2022 closure of the Sapref refinery in Durban, which had been one of sub-Saharan Africa’s largest petroleum refining facilities. As a result, the Basic Fuel Price, the formula the Department of Mineral and Petroleum Resources uses to determine what refiners and importers can charge at the wholesale level, is almost entirely exposed to the prevailing international crude price and the rand-dollar exchange rate. The rand-dollar exchange rate, trading at 16.87 rand per United States dollar at the time of the Central Energy Fund’s March 26 calculations, amplified the impact of rising crude oil costs in local currency terms.

What temporary fuel levy relief did Finance Minister Enoch Godongwana announce for April 2026 and what will it cost South Africa?

Finance Minister Enoch Godongwana and Minister of Mineral and Petroleum Resources Gwede Mantashe issued a joint statement on 31 March 2026 announcing the temporary reduction of 3 rand per litre in the general fuel levy, applicable to both petrol and diesel from 1 April 2026 to 5 May 2026. The reduction brought the general fuel levy on petrol down from 4.10 rand per litre to 1.10 rand per litre, and the levy on diesel from 3.93 rand per litre to 0.93 rand per litre. Godongwana made the announcement at the South Africa Investment Conference in Johannesburg, saying the government would review the relief measure on a monthly basis for May and June 2026 and that the intervention was designed to be fiscally neutral, with mechanisms in place to recoup foregone revenue within the fiscal framework approved during the February 2026 budget. The temporary levy reduction was estimated to cost the South African government approximately 6 billion rand in foregone tax revenue for the one-month period.

The National Treasury had previously indicated that fiscal buffers were insufficient to fund relief on the scale originally sought. Treasury Director-General Duncan Pieterse had told Bloomberg that the government faced a choice between no relief or very limited relief given its current fiscal position. Even with the 3 rand per litre levy reduction applied, the net April 2026 diesel price increase of 7.51 rand per litre remained the largest on record in South African fuel price history.

How did South Africa’s fuel supply network respond to panic buying ahead of the 1 April 2026 price adjustment?

In the days leading up to the price adjustment, South African motorists rushed to fill tanks ahead of the midnight deadline, causing supply shortfalls at a number of service stations across the country. By the evening of 31 March 2026, multiple service stations in eastern Johannesburg had run out of both diesel and petrol and were turning motorists away. Fuel rationing was introduced at a number of stations, with purchase limits set at between 30 and 50 litres per vehicle. The Pretoria municipal bus service experienced disruptions on 31 March 2026 due to fuel shortages at the city’s bus depots, disrupting public transport for the capital’s commuters. The South African National Taxi Council warned that minibus taxi fare increases could follow as operators faced rising diesel costs and supply constraints.

TotalEnergies wrote to its South African retailers on 24 March 2026, suggesting they begin raising diesel prices by up to 8 rand per litre ahead of the official monthly adjustment, citing stockouts driven by consumer pre-buying behaviour. The Fuel Retailers Association opposed the move, warning it could constitute double recovery, with fuel companies collecting the underrecovery from consumers directly and again through the Slate Levy mechanism later. TotalEnergies reversed the instruction on 26 March 2026. The Department of Mineral and Petroleum Resources and Minister Mantashe maintained that South Africa had sufficient national fuel supply to meet current and projected demand, attributing localised shortages to distribution and logistical challenges caused by panic buying rather than a national deficit, and indicating these were expected to self-correct within days.

What are the expected downstream economic consequences for South Africa’s freight, agriculture, and low-income households?

Diesel powers the majority of South Africa’s freight, mining, and logistics operations, meaning large price adjustments feed through rapidly to the cost of goods and services across the broader economy. The April 2026 increase placed immediate upward pressure on transport costs with anticipated knock-on effects on food price inflation in the months ahead. Lower-income households, who depend predominantly on minibus taxi services and municipal buses for daily commuting, faced a compounding risk from both higher transport fares and rising food prices.

Agriculture sector bodies AgriSA and Agbiz welcomed the temporary levy reduction but called for additional structural measures. These included more frequent fuel price reviews during periods of extreme volatility, greater transparency on national fuel stock levels, a temporary reduction in the Road Accident Fund levy, and an extension of the diesel rebate for primary agricultural users to 100%. AgriSA and Agbiz noted that other major inputs, particularly fertiliser, which accounts for between 35% and 50% of total production costs for many South African farmers, were also rising sharply due to global supply disruptions, compounding financial pressure on the farming sector. The combination was described as an intensifying strain on producers already operating in a low-margin environment ahead of critical winter and summer grain production periods.

The Road Accident Fund levy increased by 7 cents per litre to 2.25 rand per litre from 1 April 2026. The Carbon Fuel Levy increased by 5 cents per litre for petrol and 6 cents per litre for diesel. The Slate Levy remained unchanged at zero cents per litre, with the cumulative slate balance standing at a positive 4.93 billion rand at the end of February 2026. After the price adjustments took effect, a litre of 95 Unlead petrol was priced at 22.53 rand at the coast and 23.36 rand in inland regions.

Key takeaways on what South Africa’s record April 2026 diesel price increase means for consumers, government, and the economy

• South Africa’s diesel price rose by a record 7.51 rand per litre from 1 April 2026, the largest single monthly fuel price adjustment in the country’s history, driven by the closure of the Strait of Hormuz and a 38% surge in Brent Crude oil prices following United States and Israeli military strikes on Iran from 28 February 2026.
• Finance Minister Enoch Godongwana and Minister of Mineral and Petroleum Resources Gwede Mantashe announced a temporary 3 rand per litre reduction in the general fuel levy effective 1 April to 5 May 2026, at an estimated cost of 6 billion rand in foregone tax revenue, with the measure designed to be fiscally neutral and subject to monthly review.
• South Africa’s domestic refining capacity has fallen below 35% of national consumption following the 2022 closure of the Sapref refinery in Durban, leaving the Basic Fuel Price almost entirely exposed to international crude prices and the rand-dollar exchange rate, amplifying the domestic impact of global supply disruptions.
• Panic buying ahead of the midnight deadline caused localised fuel shortages and rationing across Johannesburg, disrupted Pretoria’s municipal bus service, and prompted the South African National Taxi Council to warn of imminent minibus taxi fare increases.
• Agriculture bodies AgriSA and Agbiz warned that record diesel prices, combined with rising fertiliser costs driven by global supply disruptions, are compounding financial pressure on South African farmers ahead of critical winter and summer grain production periods.