0000950134-05-022170 Sample Contracts

ENCORE ACQUISITION COMPANY Issuer and WELLS FARGO BANK, NATIONAL ASSOCIATION Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of November 23, 2005 To INDENTURE Dated as of November 16, 2005

First Supplemental Indenture • November 23rd, 2005 • Encore Acquisition Co • Crude petroleum & natural gas • New York

• Contract Type
  First Supplemental Indenture
• Filed
  November 23rd, 2005
• Company
  Encore Acquisition Co
• Industry
  Crude petroleum & natural gas
• Jurisdiction
  New York

FIRST SUPPLEMENTAL INDENTURE, dated as of November 23, 2005 (this “First Supplemental Indenture”), between ENCORE ACQUISITION COMPANY, a Delaware corporation (the “Company”), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as trustee (the “Trustee”).