TWENTY-THIRD SUPPLEMENTAL INDENTURE ADDITIONAL SUBSIDIARY GUARANTEESNRG Energy, Inc. • July 15th, 2009 • Electric services • New York
Company FiledJuly 15th, 2009 Industry JurisdictionTwenty-Third Supplemental Indenture (this “Supplemental Indenture for Additional Guarantees”), dated as of July 14, 2009, among Langford Wind Power, LLC, NRG Texas C&I Supply LLC, NRG Texas Holding Inc., Reliant Energy Services Texas, LLC and Reliant Energy Texas Retail, LLC (each a “Guaranteeing Subsidiary” and together, the “Guaranteeing Subsidiaries”), each an indirect subsidiary of NRG Energy, Inc. (or its permitted successor), a Delaware corporation (the “Company”), the Company, the other Guarantors (as defined in the Indenture referred to herein) and Law Debenture Trust Company of New York, as trustee under the indentures referred to below (the “Trustee”).