In June 2015, fuel in Belgium averaged €1.442 for petrol

Petrol, monthly average€1.442/L
Diesel, monthly average€1.195/L
LPG, monthly average€0.433/L
Weekly bulletins held for June 20155

Monthly averages for Belgium across June 2015, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).