EL PASO PIPELINE PARTNERS OPERATING COMPANY, L.L.C. as the Company EL PASO PIPELINE PARTNERS, L.P. as the Guarantor and HSBC BANK USA, NATIONAL ASSOCIATION as Trustee FOURTH SUPPLEMENTAL INDENTURE Dated as of November 8, 2012 to INDENTURE Dated as of...Fourth Supplemental Indenture • November 15th, 2012 • El Paso Pipeline Partners, L.P. • Natural gas transmission • New York
