PARIS (Standard&Poor's CreditWire) June 27, 2000--Following the Spanish government's announcement on June 23, 2000, of a package of economic measures aimed at fostering competition in the energy sector, among others, Standard&Poor's today affirmed all of its ratings on Spanish oil and gas group Repsol-YPF S.A. and related entities--including the parent company's single-'A'-minus long-term and 'A-2' short-term corporate credit ratings. The outlook remains stable. The ratings on Spain-based Gas Natural SDG, S.A. and its subsidiary Gas Natural Finance B.V. remain on CreditWatch, where they were placed with negative implications on May 10, 2000, following the announcement that the company intended to split its gas transmission network subsidiary Enagas and list the infrastructure assets on the Spanish stock