In September 2013, fuel in Slovenia averaged €1.487 for petrol

Petrol, monthly average€1.487/L
Diesel, monthly average€1.418/L
LPG, monthly average€0.782/L
Weekly bulletins held for September 20135

Monthly averages for Slovenia across September 2013, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).