0000950134-08-000291 Sample Contracts

NATURAL GAS LIQUIDS PURCHASE AGREEMENT By and Between KOCH HYDROCARBON, LP and PIONEER NATURAL RESOURCES USA, INC. Dated: March 26, 2003

Natural Gas Liquids Purchase Agreement • January 8th, 2008 • Pioneer Southwest Energy Partners L.P. • Crude petroleum & natural gas • Texas

• Contract Type
  Natural Gas Liquids Purchase Agreement
• Filed
  January 8th, 2008
• Company
  Pioneer Southwest Energy Partners L.P.
• Industry
  Crude petroleum & natural gas
• Jurisdiction
  Texas

This Natural Gas Liquids Purchase Agreement (“Agreement”) is made on this 26th Day of March, 2003, by and between PIONEER NATURAL RESOURCES USA, INC. (“Pioneer”), and Koch Hydrocarbon, LP (“KHLP”).

Crude Oil Purchase Contract

Crude Oil Purchase Contract • January 8th, 2008 • Pioneer Southwest Energy Partners L.P. • Crude petroleum & natural gas

• Contract Type
  Crude Oil Purchase Contract
• Filed
  January 8th, 2008
• Company
  Pioneer Southwest Energy Partners L.P.
• Industry
  Crude petroleum & natural gas

This contract by and between Pioneer Natural Resources USA (“Pioneer”), with an address of 5205 N. O’Connor Blvd. Irving, Texas and Plains Marketing, L.P., (“PMLP”), covering the sale and delivery by Pioneer and the purchase and receipt by PMLP of the hereinafter specified oil is entered into in accordance with the following terms and conditions:

CONTRACT NO 2582-1013 January 19, 2005

Sales Contract • January 8th, 2008 • Pioneer Southwest Energy Partners L.P. • Crude petroleum & natural gas

• Contract Type
  Sales Contract
• Filed
  January 8th, 2008
• Company
  Pioneer Southwest Energy Partners L.P.
• Industry
  Crude petroleum & natural gas

This contract by and between Pioneer Natural Resources USA (“Pioneer”), with an address of PO Box 3178, Midland, TX 79702 and Plains Marketing, L.P., (“PMLP”), covering the sale and delivery by Pioneer and the purchase and receipt by PMLP of the hereinafter specified oil is entered into in accordance with the following terms and conditions: