Gas Prices in Belgium Drop to Lowest Level Since Mid-March

Belgian motorists received welcome relief on Tuesday as the SPF Économie (Federal Public Service Economy) announced that the maximum price of gasoline would drop to its lowest level in three months, effective Wednesday, June 17, 2026. The price of 95 RON E10 unleaded will fall to €1.819 per litre — a decrease of 5.5 cents — while 98 RON E10/E5 will drop to €1.887 per litre, down 6.2 to 6.3 cents, according to RTBF.

Context: A Three-Month High-Water Mark Broken

The announcement marks the first time since mid-March 2026 that gasoline prices have fallen to these levels. Diesel had already dipped below the symbolic €2.00 per litre threshold on Tuesday — a first since March 11 — as reported by L’Avenir. Heating oil prices are also declining, dropping 3.2 cents to €1.0479 per litre for orders under 2,000 litres and €1.0074 for larger orders.

The price cuts are part of Belgium’s regulated fuel pricing system, administered by the SPF Économie, which sets maximum prices for petroleum products based on international market trends, exchange rates, and distribution costs. The official tariff for petroleum products was updated accordingly.

The Geopolitical Driver: US-Iran Peace Deal

The sharp decline in fuel prices is directly linked to a major geopolitical breakthrough. On June 14, President Donald Trump announced that the United States and Iran had reached a comprehensive peace deal, which includes a commitment to reopen the Strait of Hormuz within 30 days. The strait is a critical chokepoint through which approximately 20–25% of the world’s oil supply passes.

The announcement triggered a sharp drop in global oil prices to three-month lows, ending months of severe volatility that began in late February 2026 when US-Israeli strikes on Iran prompted Tehran to effectively close the waterway. Hundreds of ships were stranded in the Persian Gulf, and oil prices surged roughly 14%, sending Belgian fuel prices to multi-year highs.

A Timeline of Volatility

Belgian motorists have endured a turbulent year at the pump. Diesel hit a record high of €2.49 per litre on April 8, 2026, while gasoline approached €2.00 per litre in early May — levels not seen since July 2022. Prices began easing in late May, dropping by more than 10 cents per litre, before a temporary rise on June 2. The current downward trend accelerated following news of the US-Iran peace negotiations.

L’Avenir journalist Augustin Pirard noted that the price of a diesel fill-up has dropped by €23 in just two months, offering substantial savings for households and businesses alike.

Analysis: Relief at the Pump, but Caution Ahead

For Belgian consumers, the immediate impact is clear. A full 55-litre tank of 95 RON E10 now costs approximately €100.05, down from €103.08 compared to the previous week — a saving of roughly €3 per fill-up. Lower fuel prices are also expected to ease inflationary pressures, as transport costs feed into consumer prices across the economy.

However, analysts caution that the situation remains fragile. The US-Iran peace deal is scheduled for formal signing on June 19 in Geneva, and any breakdown in negotiations could reverse the price decline. The 30-day timeline for reopening the Strait of Hormuz means full normalization of oil flows may not occur until mid-July 2026. Additionally, OPEC+ production decisions and global inventory levels — which the IEA noted were drawing at a record clip in its May 2026 Oil Market Report — will influence whether prices continue to fall or stabilize.

What’s Next

Belgian motorists can expect further relief if the peace deal holds and oil markets continue to stabilize. The key question is whether gasoline prices can return to pre-crisis levels — below €1.50 per litre — a threshold not seen since before the geopolitical turmoil began.

The recent volatility has also reignited debate about Belgium’s fuel price cap system, which came under strain during the crisis. Industry representatives have warned about its long-term sustainability, while advocates of energy transition point to the crisis as further evidence of the need to accelerate Belgium’s shift toward renewable energy and electric vehicles.

For now, however, the trend is unequivocally positive for Belgian consumers. As the SPF Économie confirmed, the new lower prices take effect at pumps across the country from Wednesday, June 17.