In April 2019, fuel in Latvia averaged €1.305 for petrol

Petrol, monthly average€1.305/L
Diesel, monthly average€1.234/L
LPG, monthly average€0.560/L
Weekly bulletins held for April 20194

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