In September 2019, fuel in Slovakia averaged €1.334 for petrol

Petrol, monthly average€1.334/L
Diesel, monthly average€1.241/L
LPG, monthly average€0.570/L
Weekly bulletins held for September 20195

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