·         GAS NATURAL's new shares first listed on the stock exchange today.

GAS NATURAL concluded its merger with UNIÓN FENOSA, following today's stock market listing of the shares in the new company and registration of the public merger deed at Companies House in Barcelona, which took place last Friday after the market closed.

Today, the new GAS NATURAL shares were listed, and the UNIÓN FENOSA shareholders benefitting from the exchange now hold the company shares delivered in exchange for those of the electricity company, a process normal in this type of operation.

The conclusion of this merger marks the culmination of the GAS NATURAL's acquisition of the electricity producer, initiated in July 2008 with the gas company's announcement of its purchase of the UNIÓN FENOSA shares held by ACS and the signing of the purchase contract. The transaction was completed in under 14 months, keeping to the schedule envisaged throughout the process.

With this operation, GAS NATURAL has achieved its aim of integrating its gas and electricity businesses into one company with great experience in the energy sector, fit to compete efficiently in markets subjected to growing integration, globalisation and increasing competition.

Leader in the liberalised gas and electricity marketThe new company already leads in customers and sales in the liberalised gas and electricity market in Spain, with almost 2.3 million customers and over 74,000GWh according to data at the close of the first semester.Following the operation, the energy group has a base in over 23 countries and more than 20 million customers worldwide, holds the top position for gas and electricity integration in Spain and Latin America, and is the world's second operator in the liquid natural gas market (LNG). The main supplier of NG/LNG in the Mediterrean and Atlantic basins, it also has a generation capacity of more than 17 GW.

Barcelona, 7 September 2009.