In May 2020, fuel in Germany averaged €1.216 for petrol

Petrol, monthly average€1.216/L
Diesel, monthly average€1.054/L
LPG, monthly average€0.570/L
Weekly bulletins held for May 20204

Monthly averages for Germany across May 2020, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).