NEW YORK (Standard&Poor's) July 20, 2012--Standard&Poor's Ratings Services today placed its 'AAA/A-1+' ratings on three Duke Energy Indiana Inc.-related bond issues supported by a letter of credit (LOC) on CreditWatch with negative implications (see list). The long- and short-term components of our ratings on the series 2009A-4 and 2009-A5 bonds are based on our long- and short-term issuer credit ratings on, as well as the joint support provided by, Sumitomo Mitsui Banking Corp. ('A+/A-1'), the LOC provider, and Duke Energy Indiana Inc. (A-/Watch Neg/A-2), the obligor, assuming a low correlation level between the LOC provider and obligor. The long- and short-term components of our ratings on the series 2009-A3 bonds are based on our long- and
