In January 2012, fuel in Belgium averaged €1.600 for petrol

Petrol, monthly average€1.600/L
Diesel, monthly average€1.425/L
LPG, monthly average€0.709/L
Weekly bulletins held for January 20124

Monthly averages for Belgium across January 2012, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).