1 EXHIBIT 4.9 FIRST SUPPLEMENTAL INDENTURE FIRST SUPPLEMENTAL INDENTURE dated as of August 9, 1999 (this "Supplemental Indenture"), between Nuevo Energy Company, a Delaware corporation (the "Company"), and State Street Bank and Trust Company, a...Supplemental Indenture • November 3rd, 1999 • Nuevo Energy Co • Crude petroleum & natural gas • New York
andIndenture • November 3rd, 1999 • Nuevo Energy Co • Crude petroleum & natural gas • New York
1 EXHIBIT 4.12 NUEVO ENERGY COMPANY 9 1/2% SENIOR SUBORDINATED NOTES DUE 2008 REGISTRATION AGREEMENTNuevo Energy Co • November 3rd, 1999 • Crude petroleum & natural gas • New York
