Oil and gas companies of Italy

Rosetti Marino SpA is the parent company of an industrial group, listed in the Milan stock exchange of AIM Italia Mercato alternativo del capitale and comprising 18 companies, 9 branch offices and 1,200 employees.

Italiana Petroli S.p.A. (until 2019 Anonima Petroli Italiana S.p.A.), also known by the acronym API or Gruppo API, is an Italian oil and energy company headquartered in Rome. It is active in the fuel and mobility services sector through the IP Gruppo API brand.

Edison S.p.A. is an Italian electric utility company headquartered in Milan. The company was established in 1884 and acquired by Electricité de France in 2012. Edison employs more than 5,000 people in Europe, North Africa, and the Middle East. The chairman of the board is Luc Rémont (CEO of EDF) and the chief executive officer is Nicola Monti.

Enel S.p.A. is an Italian multinational manufacturer and distributor of electricity and gas. Enel was first established as a public body at the end of 1962, and then transformed into a limited company in 1992. In 1999, following the liberalisation of the electricity market in Italy, Enel was privatised. The Italian state, through the Ministry of Economy and Finance, is the main shareholder, with 23.6% of the share capital as of 1 April 2016.

Eni S.p.A. , acronym for and formerly legally known as Ente nazionale idrocarburi (National Hydrocarbons Board), 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.

TotalErg S.p.A. was an Italian company that operated in the refining and distribution of petroleum products. It was a joint venture between Total SA (49%) and Erg S.p.A. (51%).

Central Energy Italian Inc is an Italian gas distribution and trade company. It is a part of Central Energy, a company related to Gazprom. A deal between Italian Eni and Gazprom picked CEI as a partner delivering gas to Italy.

The Azienda Italiana Petroli Albania (AIPA) was a company created by Italian railways and later controlled by AGIP, active from 1935 to 1943.

Hera S.p.A (Holding Energia Risorse Ambiente, Energy Resource Environment Holdings) is a multiutility company based in Bologna, Italy. Hera operates in the distribution of gas, water, energy, and waste disposal in the provinces of Bologna, Ferrara, Forlì-Cesena, Modena, Pesaro, Pordenone, Ravenna, Rimini, Trieste, Udine and Urbino, and in some municipalities of Ancona, Gorizia and Venice.

Erg S.p.A., acronym for Edoardo Raffinerie Garrone, is an Italian energy company, founded in 1938, and based in Genoa, Italy.