The first issue of Il Gatto Selvatico came out in July 1955, the Eni house organ that Enrico Mattei was eager to establish and which was entrusted to editor and poet Attilio Bertolucci. It was aimed at employees and had more than 12,000 readers. Printed in colour with many photos, in the style of a weekly such as 'La Domenica del Corriere', the magazine was more than merely a house organ: over its nine-year existence, it positioned itself as a genuine cultural laboratory, with collaboration from authors such as Leonardo Sciascia, Goffredo Parise, Natalia Ginzburg, Alfonso Gatto, Carlo Cassola and Carlo Emilio Gadda among others. Thanks to their articles and columns on sport, cinema, fashion and food, the magazine provides an overview of Italian habits and lifestyle in the boom years. The last issue came out in March 1965.