In May 2014, fuel in Slovakia averaged €1.482 for petrol

Petrol, monthly average€1.482/L
Diesel, monthly average€1.360/L
LPG, monthly average€0.711/L
Weekly bulletins held for May 20144

Monthly averages for Slovakia across May 2014, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).