EXHIBIT 4.A.1 FIRST SUPPLEMENTAL INDENTUREEl Paso Production Holding Co • September 30th, 2004 • Crude petroleum & natural gas • New York
Company FiledSeptember 30th, 2004 Industry Jurisdiction
AMONGEl Paso Production Holding Co • September 30th, 2004 • Crude petroleum & natural gas • New York
Company FiledSeptember 30th, 2004 Industry Jurisdiction
EXHIBIT 4.A.3 SECOND SUPPLEMENTAL INDENTUREEl Paso Production Holding Co • September 30th, 2004 • Crude petroleum & natural gas • New York
Company FiledSeptember 30th, 2004 Industry Jurisdiction