In May 2018, fuel in Finland averaged <span class="el-fx" data-el-fx data-amount="1.579" data-currency="EUR" data-kind="price">€1.579</span> for petrol

Petrol, monthly average<span class="el-fx" data-el-fx data-amount="1.579" data-currency="EUR" data-kind="price">€1.579</span>/L
Diesel, monthly average<span class="el-fx" data-el-fx data-amount="1.4" data-currency="EUR" data-kind="price">€1.400</span>/L
Weekly bulletins held for May 20184

Monthly averages for Finland across May 2018, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).