In September 2021, fuel in Netherlands averaged €1.856 for petrol

Petrol, monthly average€1.856/L
Diesel, monthly average€1.509/L
LPG, monthly average€0.807/L
Weekly bulletins held for September 20214

Monthly averages for Netherlands across September 2021, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).