Common Contracts

ADMINISTRATIVE SERVICES AGREEMENT among PIONEER SOUTHWEST ENERGY PARTNERS L.P., PIONEER NATURAL RESOURCES GP LLC, PIONEER SOUTHWEST ENERGY PARTNERS USA LLC, and PIONEER NATURAL RESOURCES USA, INC. dated effective as of May 6, 2008

Administrative Services Agreement • May 9th, 2008 • Pioneer Southwest Energy Partners L.P. • Crude petroleum & natural gas

• Contract Type
  Administrative Services Agreement
• Filed
  May 9th, 2008
• Company
  Pioneer Southwest Energy Partners L.P.
• Industry
  Crude petroleum & natural gas

THIS ADMINISTRATIVE SERVICES AGREEMENT is entered into on, and effective as of May 6, 2008, among Pioneer Natural Resources GP LLC, a Delaware limited liability company (the “General Partner”), Pioneer Southwest Energy Partners L.P., a Delaware limited partnership (the “Partnership”), Pioneer Southwest Energy Partners USA LLC, a Texas limited liability company (the “Operating Company”), and Pioneer Natural Resources USA, Inc., a Delaware corporation (“Pioneer USA,” and collectively with the General Partner, the Partnership and the Operating Company, the “Parties” and each, a “Party”).

ADMINISTRATIVE SERVICES AGREEMENT among PIONEER SOUTHWEST ENERGY PARTNERS L.P., PIONEER NATURAL RESOURCES GP LLC, PIONEER SOUTHWEST ENERGY PARTNERS USA LLC, and PIONEER NATURAL RESOURCES USA, INC. dated effective as of , 2007

Administrative Services Agreement • October 17th, 2007 • Pioneer Southwest Energy Partners L.P. • Crude petroleum & natural gas

• Contract Type
  Administrative Services Agreement
• Filed
  October 17th, 2007
• Company
  Pioneer Southwest Energy Partners L.P.
• Industry
  Crude petroleum & natural gas

THIS ADMINISTRATIVE SERVICES AGREEMENT is entered into on, and effective as of , 2007, among Pioneer Natural Resources GP LLC, a Delaware limited liability company (the “General Partner”), Pioneer Southwest Energy Partners L.P., a Delaware limited partnership (the “Partnership”), Pioneer Southwest Energy Partners USA LLC, a Texas limited liability company (the “Operating Company”), and Pioneer Natural Resources USA, Inc., a Delaware corporation (“Pioneer USA,” and collectively with the General Partner, the Partnership and the Operating Company, the “Parties” and each, a “Party”).

ADMINISTRATIVE SERVICES AGREEMENT among PIONEER SOUTHWEST ENERGY PARTNERS L.P., PIONEER NATURAL RESOURCES GP LLC, PIONEER SOUTHWEST ENERGY PARTNERS USA LLC, and PIONEER NATURAL RESOURCES USA, INC. dated effective as of

Administrative Services Agreement • September 13th, 2007 • Pioneer Southwest Energy Partners L.P. • Crude petroleum & natural gas • Texas

• Contract Type
  Administrative Services Agreement
• Filed
  September 13th, 2007
• Company
  Pioneer Southwest Energy Partners L.P.
• Industry
  Crude petroleum & natural gas
• Jurisdiction
  Texas

THIS ADMINISTRATIVE SERVICES AGREEMENT is entered into on, and effective as of , 2007 (the “Effective Date”), among Pioneer Natural Resources GP LLC, a Delaware limited liability company (the “General Partner”), Pioneer Southwest Energy Partners L.P., a Delaware limited partnership (the “Partnership”), Pioneer Southwest Energy Partners USA LLC, a Texas limited liability company (the “Operating Company”), and Pioneer Natural Resources USA, Inc., a Delaware corporation (“Pioneer USA,” and collectively with the General Partner, the Partnership and the Operating Company, the “Parties” and each, a “Party”).