In March 2007, fuel in Belgium averaged €1.265 for petrol

Petrol, monthly average€1.265/L
Diesel, monthly average€0.964/L
LPG, monthly average€0.474/L
Weekly bulletins held for March 20074

Monthly averages for Belgium across March 2007, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).