MARKWEST ENERGY PARTNERS, L.P. 8,500,000 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS UNDERWRITING AGREEMENT November 13, 2012Underwriting Agreement • November 19th, 2012 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledNovember 19th, 2012 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to you (the “Underwriters”), pursuant to the terms of this Underwriting Agreement (this “Agreement”), an aggregate of 8,500,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriters not more than an additional 1,275,000 Common Units (the “Additional Units” and together with the Firm Units, the “Units”) if and to the extent the Underwriters shall have determined to exercise
MARKWEST ENERGY PARTNERS, L.P. 6,000,000 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS UNDERWRITING AGREEMENT August 14, 2012Underwriting Agreement • August 17th, 2012 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledAugust 17th, 2012 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to the underwriters named in Schedule I (the “Underwriters”) attached to this underwriting agreement (this “Agreement”), an aggregate of 6,000,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriters not more than an additional 900,000 Common Units (the “Additional Units” and together with the Firm Units, the “Units”) if and to the extent the Underwriters shall have determined to exercise the right to purchase such Additional Units granted to the Underwriters pursuant to Section 2 of this Agreement.
MARKWEST ENERGY PARTNERS, L.P. 8,000,000 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS UNDERWRITING AGREEMENT May 9, 2012Underwriting Agreement • May 14th, 2012 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledMay 14th, 2012 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to the underwriters named in Schedule I (the “Underwriters”) attached to this underwriting agreement (this “Agreement”), for whom you (the “Representatives”) are acting as representative, an aggregate of 8,000,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriters not more than an additional 1,200,000 Common Units (the “Additional Units” and together with the Firm Units, the “Units”) if and to the extent the Underwriters shall have determined to exercise the right to purchase such Additional Units granted to the Underwriters pursuant to Section 2 of this Agreement.
MARKWEST ENERGY PARTNERS, L.P. 5,900,000 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS UNDERWRITING AGREEMENT March 13, 2012Underwriting Agreement • March 16th, 2012 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledMarch 16th, 2012 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to the underwriters named in Schedule I (the “Underwriters”) attached to this underwriting agreement (this “Agreement”), for whom you (the “Representatives”) are acting as representatives, an aggregate of 5,900,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriters not more than an additional 885,000 Common Units (the “Additional Units” and together with the Firm Units, the “Units”) if and to the extent the Underwriters shall have determined to exercise the right to purchase such Additional Units granted to the Underwriters pursuant to Section 2 of this Agreement.
MARKWEST ENERGY PARTNERS, L.P. 10,000,000 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS UNDERWRITING AGREEMENT December 13, 2011Underwriting Agreement • December 19th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledDecember 19th, 2011 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to the underwriters named in Schedule I (the “Underwriters”) attached to this underwriting agreement (this “Agreement”), for whom you (the “Representatives”) are acting as representatives, an aggregate of 10,000,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriters not more than an additional 1,500,000 Common Units (the “Additional Units” and together with the Firm Units, the “Units”) if and to the extent the Underwriters shall have determined to exercise the right to purchase such Additional Units granted to the Underwriters pursuant to Section 2 of this Agreement.
MARKWEST ENERGY PARTNERS, L.P. 5,000,000 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS UNDERWRITING AGREEMENT October 7, 2011Underwriting Agreement • October 13th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledOctober 13th, 2011 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to the underwriters named in Schedule I (the “Underwriters”) attached to this underwriting agreement (this “Agreement”) an aggregate of 5,000,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriters not more than an additional 750,000 Common Units (the “Additional Units” and together with the Firm Units, the “Units”) if and to the extent the Underwriters shall have determined to exercise the right to purchase such Additional Units granted to the Underwriters pursuant to Section 2 of this Agreement.
MARKWEST ENERGY PARTNERS, L.P. 3,500,000 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS UNDERWRITING AGREEMENT July 8, 2011Underwriting Agreement • July 13th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledJuly 13th, 2011 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to the underwriters named in Schedule I (the “Underwriters”) attached to this underwriting agreement (this “Agreement”) an aggregate of 3,500,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriters not more than an additional 525,000 Common Units (the “Additional Units” and together with the Firm Units, the “Units”) if and to the extent the Underwriters shall have determined to exercise the right to purchase such Additional Units granted to the Underwriters pursuant to Section 2 of this Agreement
MARKWEST ENERGY PARTNERS, L.P. 3,000,000 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS UNDERWRITING AGREEMENT January 11, 2011Underwriting Agreement • January 14th, 2011 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledJanuary 14th, 2011 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to you (the “Underwriter”) an aggregate of 3,000,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriter not more than an additional 450,000 Common Units (the “Additional Units” and together with the Firm Units, the “Units”) if and to the extent that you shall have determined to exercise the right to purchase such Additional Units granted to you pursuant to Section 2 of this agreement (this “Agreement”).
UNDERWRITING AGREEMENTUnderwriting Agreement • April 5th, 2010 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledApril 5th, 2010 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to the underwriters named in Schedule I (the “Underwriters”) attached to this underwriting agreement (this “Agreement”) an aggregate of 4,250,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”). The Partnership also proposes to issue and sell to the Underwriters not more than an additional 637,500 Common Units (the “Additional Units”) if and to the extent that Morgan Stanley & Co. Incorporated, Barclays Capital Inc., UBS Securities LLC and Wells Fargo Securities, LLC, as representatives of the several Underwriters (the “Representatives”), shall have determined to exercise the right to purchase such Additional Units granted to the Underwriters pursuant to Section 2 hereof. The Firm Units and the Additional Units, if purchased, are hereinafter collectively referred to as the “Units.”
UNDERWRITING AGREEMENTUnderwriting Agreement • August 14th, 2009 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledAugust 14th, 2009 Company Industry JurisdictionMarkWest Energy Partners, L.P., a Delaware limited partnership (the “Partnership”), proposes to issue and sell to the underwriters named in Schedule I (the “Underwriters”) attached to this underwriting agreement (this “Agreement”), and MWHC Holding, Inc., a Colorado corporation (the “Selling Unitholder”), proposes to sell to the Underwriters, an aggregate of 5,500,000 common units (the “Firm Units”) representing limited partner interests in the Partnership (“Common Units”), of which 5,200,000 Common Units are to be issued and sold by the Partnership and 300,000 Common Units are to be sold by the Selling Unitholder.
UNDERWRITING AGREEMENTUnderwriting Agreement • June 10th, 2009 • Markwest Energy Partners L P • Crude petroleum & natural gas • New York
Contract Type FiledJune 10th, 2009 Company Industry Jurisdiction