In July 2019, fuel in Slovakia averaged €1.365 for petrol

Petrol, monthly average€1.365/L
Diesel, monthly average€1.224/L
LPG, monthly average€0.585/L
Weekly bulletins held for July 20195

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