Case C-76/17: Judgment of the Court (Fourth Chamber) of 1 March 2018 (request for a preliminary ruling from the Înalta Curte de Casaţie şi Justiţie — Romania) — SC Petrotel-Lukoil SA, Maria Magdalena Georgescu v Ministerul Economiei, Ministerul Energiei, Ministerul Finanţelor Publice (Reference for a preliminary ruling — Charges having an effect equivalent to customs duties — Article 30 TFEU — Internal taxation — Article 110 TFEU — Charge applied to exported petroleum products — Charge not passed on to the consumer — Tax burden for the taxpayer — Reimbursement of the sums paid by the taxpayer)