In May 2014, fuel in Belgium averaged €1.605 for petrol

Petrol, monthly average€1.605/L
Diesel, monthly average€1.401/L
LPG, monthly average€0.602/L
Weekly bulletins held for May 20144

Monthly averages for Belgium across May 2014, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).