In May 2011, fuel in Czechia averaged €1.426 for petrol

Petrol, monthly average€1.426/L
Diesel, monthly average€1.396/L
LPG, monthly average€0.706/L
Weekly bulletins held for May 20115

Monthly averages for Czechia across May 2011, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).