In 1945, the National Liberation Committee appointed him to the leadership of Agip (Azienda Generale Italiana Petrolio – General Italian Oil Company), the national oil company created by the Fascists, with instructions to close it as soon as possible. Mattei instead worked hard to restructure the company and transform it into one of the nation's most important economic assets."State v. Private Capital". Time. 29 November 1954.
In 1945 the National Liberation Committee appointed him to the leadership of Agip (Azienda Generale Italiana Petrolio – General Italian Oil Company) the national oil company created by the Fascists with instructions to close it as soon as possible Mattei instead worked hard to restructure the company and transform it into one of the nation's most important economic assets"State v Private Capital" Time 29 November 1954