Eni S.p.A., acronym for and formerly legally known as Ente nazionale idrocarburi, is an Italian multinational energy company headquartered in Rome. It is considered one of the "supermajor" oil companies in the world, with a market capitalization of €50 billion, as of 31 December 2023. The Italian government owns a 30.5% golden share in the company, 1.99% held through the Ministry of Economy and Finance and 28.5% through the Cassa Depositi e Prestiti. The company is a component of the Euro Stoxx 50 stock market index.