[1] Under chairman Carlo Da Molo, Italgas undertook an extensive campaign to build methane distribution infrastructure, expanding considerably in Central and Southern Italy.

[5] In addition to strengthening its presence in the natural gas sector, the company also expanded its operations in the complete potable water cycle and entered the solid urban waste management business.

[6] The investigations conducted by the authorities and the pro-active collaboration of the parent company, Snam, allowed the Court of Palermo to rescind the order in July 2015.

[9] Over time Italgas S.p.A. has expanded its operations from Turin to the rest of Italy to cover over 35% of the market (2020),[10] with concessions in approximately 1,800 municipalities, including some of the largest, such as Rome, managed directly or through its subsidiaries.

This core set has been expanded on numerous occasions over the years, and the historical archive currently extends to 1979, while the repository, occupying over approximately 1.5 km, includes documents from 1980 to 2003.