In April 2021, fuel in Slovenia averaged €1.172 for petrol

Petrol, monthly average€1.172/L
Diesel, monthly average€1.190/L
LPG, monthly average€0.663/L
Weekly bulletins held for April 20213

Monthly averages for Slovenia across April 2021, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).