US-Iran Ceasefire & SA Fuel Prices: What Happened Next

How the War Started — and Why Oil Prices Surged

In late February 2026, Iran closed the Strait of Hormuz — the narrow waterway between Iran and Oman through which roughly one-fifth of the world's oil and liquefied natural gas ordinarily flows. The move triggered an immediate and severe disruption to global energy supply, sending Brent crude from around $70 per barrel before the conflict to above $120 at peak.

In normal times, around 138 vessels cross the strait each day. During the conflict, that number dropped to a handful. The knock-on effect for South Africa was swift and severe: because crude oil is priced in US dollars, local fuel costs were hit from two sides simultaneously — rising global oil prices and a weakening rand against the dollar.

Petrol 95 began 2026 at R20.75 per litre. By June, it had climbed to a record R28.06 per litre — an increase of R7.31 per litre in just five months.

How South Africa Responded

President Cyril Ramaphosa confirmed in a parliamentary Q&A that, prior to the Middle East conflict, fuel prices had been declining due to lower crude oil prices and a stronger rand. The war reversed that entirely. In response, the government took several steps:

• Delayed the planned fuel levy adjustments announced in the 2026 Budget
• Implemented General Fuel Levy (GFL) relief from April to end-June 2026, reducing petrol and diesel levies by R3 per litre in April
• In May, extended the R3/l relief on petrol and cut the diesel GFL to zero
• Confirmed agriculture sector diesel refunds: 100% of the RAF levy and 40% of the fuel levy on eligible purchases

The Deal That Changed Everything

On 14 June 2026, US President Donald Trump announced that a deal with Iran had been reached. The response in global oil markets was immediate: Brent crude fell sharply from its wartime peak above $120 per barrel to the $74–$80 range. The rand, meanwhile, strengthened toward R16.13 per US dollar, providing additional relief on the local pricing equation.

Why the Relief Won't Be Instant — or Complete

There are two reasons why South African motorists won't feel the full benefit of falling oil prices immediately.

Pipeline lag. Movements in wholesale oil markets take roughly two weeks to show up at the pump. The June fuel price adjustment was set when oil was still near its wartime peak, so it still reflected higher pre-ceasefire prices.

Levy reinstatement. The remaining half of the General Fuel Levy — R1.50/l for petrol and R1.93/l for diesel — is being added back on 1 July, partially offsetting the gains from cheaper oil.

The Full Timeline

What Happened Next

July 2026 played out largely as this article expected: the ceasefire held through the month, oil stayed cheap, and SA motorists got the biggest across-the-board price cut in years — petrol 93 down R2.01/l, diesel down over R3/l — even with the last of the fuel levy relief withdrawn.

What this article didn't anticipate is that the ceasefire wouldn't last. In mid-July, the US resumed strikes on Iran and the Strait of Hormuz shut again, sending Brent crude back toward $100 a barrel before it settled around $83. By the August price round, the damage was uneven: petrol was largely protected because the slate levy — a separate mechanism that recovers historical under-recoveries — happened to have enough room to absorb most of the shock. Diesel had no equivalent buffer, and was additionally hit by a problem the ceasefire collapse didn't cause directly: Russia restricting diesel exports and Middle East refineries running below capacity, which pushed international diesel prices up even as crude fell back from its spike.

Frequently asked questions

Sources: Central Energy Fund (CEF) mid-month projections, 16 June 2026; Department of Mineral and Petroleum Resources media statements, June–August 2026; Presidency parliamentary Q&A session, June 2026; BBC reporting on Strait of Hormuz shipping data; BusinessTech, August 2026.