0001104659-03-012646 Sample Contracts

PURCHASE AGREEMENT

Purchase Agreement • June 19th, 2003 • Markwest Energy Partners L P • Crude petroleum & natural gas • Delaware

• Contract Type
  Purchase Agreement
• Filed
  June 19th, 2003
• Company
  Markwest Energy Partners L P
• Industry
  Crude petroleum & natural gas
• Jurisdiction
  Delaware

PURCHASE AGREEMENT, dated as of June 13, 2003 (this “Agreement”), by and among MARKWEST ENERGY PARTNERS, L.P., a Delaware limited partnership (the “Seller”) and each Person listed on Schedule A attached hereto (each, a “Purchaser” and collectively, the “Purchasers”).

REGISTRATION RIGHTS AGREEMENT

Registration Rights Agreement • June 19th, 2003 • Markwest Energy Partners L P • Crude petroleum & natural gas • Delaware

• Contract Type
  Registration Rights Agreement
• Filed
  June 19th, 2003
• Company
  Markwest Energy Partners L P
• Industry
  Crude petroleum & natural gas
• Jurisdiction
  Delaware

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is made and entered into as of June 13, 2003, by and among MarkWest Energy Partners, L.P., a Delaware limited partnership (“Partners”), and each Person listed on Schedule A attached hereto (each, an “Investor” and collectively, the “Investors”).