In December 2017, fuel in Netherlands averaged €1.565 for petrol

Petrol, monthly average€1.565/L
Diesel, monthly average€1.272/L
LPG, monthly average€0.688/L
Weekly bulletins held for December 20173

Monthly averages for Netherlands across December 2017, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).