The distribution business consists of the transfer of gas from the transport installations to the end consumer through each local operator's distribution network. The distribution network comprises gas pipelines with pressure equal to or less than 16 bar, as well as the support installations.
The distribution operators purchase natural gas from the transport operators, upon payment of a regulated transfer fee, to supply gas to their distribution network's binding (regulated) clients. Besides this, the distribution operators also have to allow access to their installations, by third parties, upon payment of an access tariff.
Naturgas, through its subsidiaries Naturgas Energia Distribucion and Tolosa Gasa, is involved in the distribution of natural gas in several regions (Asturias, Basque Country, Madrid, Castilla – León, Murcia, Extremadura and Catalunia) through medium and low-pressure pipelines (pressure less than 16 bar).