In May 2017, fuel in Belgium averaged <span class="el-fx" data-el-fx data-amount="1.338" data-currency="EUR" data-kind="price">€1.338</span> for petrol

Petrol, monthly average<span class="el-fx" data-el-fx data-amount="1.338" data-currency="EUR" data-kind="price">€1.338</span>/L
Diesel, monthly average<span class="el-fx" data-el-fx data-amount="1.265" data-currency="EUR" data-kind="price">€1.265</span>/L
LPG, monthly average<span class="el-fx" data-el-fx data-amount="0.44" data-currency="EUR" data-kind="price">€0.440</span>/L
Weekly bulletins held for May 20175

Monthly averages for Belgium across May 2017, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).