Judgment of the Court (Ninth Chamber) of 7 November 2019.#Eni SpA and Shell Italia E & P SpA v Ministero dello Sviluppo Economico and Others.#Requests for a preliminary ruling from the Tribunale Amministrativo Regionale per la Lombardia and Tribunale Amministrativo Regionale per la Lombardia.#Reference for a preliminary ruling — Directive 94/22/EC — Energy — Conditions for granting and using authorisations for the prospection, exploration and production of hydrocarbons — Royalties — Methods of calculation — QE and PFOR indices — Discriminatory nature.#Joined Cases C-364/18 and C-365/18.