Sonatrach Gas Comercializadora SAU Information on Energy Efficiency Client area Sonatrach Gas Comercializadora SAU does not sell gas to consumers with annual consumption less than or equal to 50,000 kWh. The rest of natural gas consumers, regardless of their pressure, can request an offer for their natural gas supply. Torre Espacio Building - Paseo de la Castellana 259D, 34th floor - 28046 Madrid 900 103 324 / +34 914 273 414 +34 913 074 837 info@sonatrach.es Copyright © 2018. Sonatrach Gas Comercializadora SAU