PIONEER NATURAL RESOURCES COMPANY and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Trustee Indenture Dated as of [ ], 2008 Debt SecuritiesPioneer Natural Resources Usa Inc • January 14th, 2008 • Crude petroleum & natural gas
Company FiledJanuary 14th, 2008 IndustryINDENTURE dated as of [ ], 2008, between PIONEER NATURAL RESOURCES COMPANY, a corporation duly organized and existing under the laws of the State of Delaware (hereinafter sometimes called the “Company”), and WELLS FARGO BANK, NATIONAL ASSOCIATION, a national banking association organized under the laws of the United States of America (hereinafter sometimes called the “Trustee”).