8½% SENIOR NOTES DUE 2016Sixth Supplemental Indenture • May 9th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas
This SIXTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 10, 2011, is among MarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), MarkWest Energy Finance Corporation, a Delaware corporation (“MarkWest Finance” and, together with the Partnership, the “Issuers”), each of the other parties identified on the signature page hereto (the “Subsidiary Guarantors”) and Wells Fargo Bank, National Association, a national banking association, as Trustee.
Re: Purchase and Sale Agreement (the “PSA”), dated as of January 3, 2011, by and between EQT Gathering, LLC, as Seller, and MarkWest Energy Appalachia, L.L.C., as BuyerSale Agreement • May 9th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • Pennsylvania
This letter (this “Letter Agreement”) memorializes our agreement with respect to the matters discussed below. Capitalized terms used but not otherwise defined herein shall have the meaning given to those terms in the PSA.
THIRD SUPPLEMENTAL INDENTUREThird Supplemental Indenture • May 9th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
This THIRD SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 10, 2011, is among MarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), MarkWest Energy Finance Corporation, a Delaware corporation (“MarkWest Finance” and, together with the Partnership, the “Issuers”), each of the other parties identified on the signature page hereto (the “Subsidiary Guarantors”) and Wells Fargo Bank, National Association, a national banking association, as Trustee.
PURCHASE AND SALE AGREEMENT By And Between EQT GATHERING, LLC And MARKWEST ENERGY APPALACHIA, L.L.C.Purchase and Sale Agreement • May 9th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • Pennsylvania
This PURCHASE AND SALE AGREEMENT (this “Agreement”) is dated as of January 3, 2011, by and between EQT Gathering, LLC, a Delaware limited liability company (“Seller”) and MarkWest Energy Appalachia, L.L.C., a Delaware limited liability company (“Buyer”). Seller and Buyer are referred to herein as the “Parties” and individually as a “Party.” Capitalized terms used but not otherwise defined elsewhere in this Agreement shall have the respective meanings given to such terms in ARTICLE XI.
8¾% SENIOR NOTES DUE 2018Fourth Supplemental Indenture • May 9th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
This FOURTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 10, 2011, is among MarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), MarkWest Energy Finance Corporation, a Delaware corporation (“MarkWest Finance” and, together with the Partnership, the “Issuers”), each of the other parties identified on the signature page hereto (the “Subsidiary Guarantors”) and Wells Fargo Bank, National Association, a national banking association, as Trustee.
