In May 2012, fuel in Slovakia averaged €1.559 for petrol

Petrol, monthly average€1.559/L
Diesel, monthly average€1.429/L
LPG, monthly average€0.728/L
Weekly bulletins held for May 20124

Monthly averages for Slovakia across May 2012, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).