IBERDROLA, S.A. 28/11/2012 19:35 IBERDROLA, S.A. Credit ratings Standard & Poor’s establishes the long term credit rating of Iberdrola, S.A. as BBB (from BBB+), maintains the A-2 short term credit rating of Iberdrola, S.A. and revises its Outlook from Negative to Stable. Número de registro: 177950