1971 - Methane does 9,714 km on a full tank.Back to the timeline
2 February – The Tecnomare company was set up, in collaboration with private investors, to develop marine technology.
22 March – Eni, together with Iri, Imi and Efim, underwrote the share capital of Gepi, Società di Gestioni e Partecipazioni Industriali Spa.
3 May – Following a great deal of state funding and in order to guarantee stability, Eugenio Cefis was appointed Chairman of Montedison Spa.
20 May – A cooperation and technical assistance agreement was signed between SnamProgetti and the oil company Petrobras, Petróleo Brasileiro SA.
28 May – Eni set up Tecneco, an engineering company operating in the environment protection sector.
June – Somiren (radioactive mineral nuclear energy company) began searching for uranium in Australia.
16 December – A technical-scientific collaboration agreement was signed in Rome between Eni and the USSR Gas Industry Ministry.
The Italian natural gas network covered a total area of 9,714 kilometres, including 3,235 kilometres in urban areas.