In November 2019, fuel in Belgium averaged €1.388 for petrol

Petrol, monthly average€1.388/L
Diesel, monthly average€1.436/L
LPG, monthly average€0.550/L
Weekly bulletins held for November 20194

Monthly averages for Belgium across November 2019, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).