MARKWEST ENERGY PARTNERS, L.P. MARKWEST ENERGY FINANCE CORPORATION Underwriting AgreementUnderwriting Agreement • February 14th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
MarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), and MarkWest Energy Finance Corporation, a Delaware corporation (“Finance Corp” and, together with the Partnership, the “Issuers”), propose to issue and sell to you (the “Underwriter”), $300,000,000 principal amount of their 6.5% Senior Notes due 2021 (the “Notes”). The Notes will be issued pursuant to an Indenture (the “Indenture”) dated as of November 2, 2010 among the Issuers, the Guarantors (as defined below) and Wells Fargo Bank, National Association, as trustee (the “Trustee”), and will be guaranteed on an unsecured senior basis by each of the Guarantors (the “Guarantees” and, together with the Notes, the “Securities”). The term “Indenture,” as used herein includes the Second Supplemental Indenture to be dated as of the Closing Date (as defined below) establishing the forms and terms of the Securities.
