In June 2009, fuel in Belgium averaged €1.347 for petrol

Petrol, monthly average€1.347/L
Diesel, monthly average€0.980/L
LPG, monthly average€0.455/L
Weekly bulletins held for June 20095

Monthly averages for Belgium across June 2009, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).