In March 2019, fuel in Bulgaria averaged €1.058 for petrol

Petrol, monthly average€1.058/L
Diesel, monthly average€1.127/L
LPG, monthly average€0.501/L
Weekly bulletins held for March 20194

Monthly averages for Bulgaria across March 2019, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).