EXHIBIT 4.2 FIRST SUPPLEMENTAL INDENTURE DATED AS OF MARCH 13, 2001First Supplemental Indenture • March 15th, 2001 • NRG Energy Inc • Electric services
16,000,000 Shares Common Stock ($.01 par value)Underwriting Agreement • March 15th, 2001 • NRG Energy Inc • Electric services • New York
1 EXHIBIT 1.2 NRG Energy, Inc. 10,000,000 Equity Units(1) (Initially consisting of 10,000,000 Corporate Units) Underwriting AgreementUnderwriting Agreement • March 15th, 2001 • NRG Energy Inc • Electric services • New York
as Trustee SENIOR DEBT SECURITIES INDENTURESenior Debt Securities Indenture • March 15th, 2001 • NRG Energy Inc • Electric services
