At the end of 2010, customer numbers reached 7,161,949, an approximate increase of 115,000 customers when compared to 2009. This was a moderate increase, due to the serious crisis affecting the residential building industry.
A total of 1,497 municipalities have natural gas distribution networks. Over the last 10 years, the average yearly increase of municipalities with natural gas services has increased by 55 per year on average.
The potential for further progress remains high. Spain has 8,154 municipalities, in which approximately 25% of the Spanish population lives.