Key facts
- Petrol 93 and 95 increased by 143c/l; diesel 500ppm decreased by 325c/l
- Five drivers: crude oil up, diesel seasonal demand down, rand strengthened slightly, Slate Levy increased, GFL half reinstated
- Slate Levy rose by 35c/l to recover a R18.28bn cumulative deficit
- R1.50/l of fuel levy relief reinstated on petrol; R1.96/l on diesel from 3 June
- Final R1.50/l levy reinstatement scheduled for 1 July 2026
The Official Price Changes
| Fuel Type | Official Adjustment | Direction |
|---|---|---|
| Petrol 93 (ULP & LRP) | +143.00 c/l | ↑ INCREASE |
| Petrol 95 (ULP & LRP) | +143.00 c/l | ↑ INCREASE |
| Diesel 0.05% sulphur | −324.96 c/l | ↓ DECREASE |
| Diesel 0.005% sulphur | −261.96 c/l | ↓ DECREASE |
| Illuminating Paraffin (wholesale) | −596.00 c/l | ↓ DECREASE |
| LPGas (max retail price) | −17.00 c/kg | ↓ DECREASE |
The split outcome — petrol up, diesel down — is unusual and reflects the divergence in global product markets at the time. Seasonal factors played a key role: as the northern hemisphere moved into summer, demand for middle distillates (diesel and paraffin) softened, pulling those prices lower even as crude oil remained elevated due to the war.
The Five Factors Behind the June Adjustment
| # | Driver | Impact on June 2026 Prices |
|---|---|---|
| 1 | Crude oil prices | Brent crude rose from $101 to $104.59/barrel — Strait of Hormuz closure kept supply constrained |
| 2 | International petroleum products | Petrol edged up slightly; diesel and paraffin fell sharply on lower northern hemisphere seasonal demand |
| 3 | Rand/USD exchange rate | Rand appreciated from R16.65 to R16.52/USD — providing 12–15c/l of relief across products |
| 4 | Slate Levy | R18.28bn cumulative deficit triggered automatic increase of 35.04c/l (122.70 → 157.74c/l) |
| 5 | GFL relief phase-out | R1.50/l restored to petrol; R1.96/l restored to diesel — second phase of three-phase reinstatement |
The Slate Levy — The Least-Known Cost in Your Fuel Price
The Slate Levy is a cost-recovery mechanism that few motorists are familiar with, but which had a significant impact on June's prices. When the government holds fuel prices below the market-calculated level for an extended period, the shortfall accumulates in a fund known as the "slate." When that deficit grows large enough, the levy is automatically adjusted upward to recover it.
| Slate Levy Item | Figure |
|---|---|
| Cumulative slate balance at end of April 2026 | −R18.28 billion |
| Previous Slate Levy rate | 122.70 c/l |
| Increase applied from 3 June 2026 | +35.04 c/l |
| New Slate Levy rate | 157.74 c/l |
General Fuel Levy Relief Phase-Out
June marked the second phase of the GFL reinstatement. In April, the government had cut the levy by R3 per litre as emergency relief. In June, R1.50/l was restored to petrol and R1.96/l to diesel. The final tranche — another R1.50/l for petrol — was scheduled to be restored on 1 July 2026.
Inland vs Coastal: Why Your Region Matters
The prices gazetted in the DMPR's statement are the base figures. The actual price you pay depends on your location within South Africa's Magisterial District Zones (MDZ) — a zoning system that accounts for transport costs from refinery or coastal terminals to inland filling stations. As a general rule, inland areas (Gauteng, Limpopo, Mpumalanga) pay slightly more per litre than coastal areas (Cape Town, Durban).
Source: Department of Mineral and Petroleum Resources (DMPR) Media Statement — Fuel Price Adjustments for June 2026, issued 1 June 2026. This article is a plain-language explanation of the official government announcement and does not constitute official policy guidance.