Exhibit 10.1

 

EXECUTION

 

 

EIGHTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT

 

among

 

MARKWEST ENERGY PARTNERS, L.P.,

as the Borrower,

 

WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Administrative Agent,

 

and

 

The Agents and Lenders from Time to Time Parties Thereto,

 

Dated as of May 28, 2015

 

WELLS FARGO SECURITIES, LLC

and

RBC CAPITAL MARKETS,

as Joint Lead Arrangers

 

and

 

WELLS FARGO SECURITIES, LLC,

and

RBC CAPITAL MARKETS

as Joint Bookrunners

 

 

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EIGHTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT

 

THIS EIGHTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (herein called
the “Amendment”) dated as of May 28, 2015 among MARKWEST ENERGY PARTNERS, L.P.,
a Delaware limited partnership (“Borrower”), WELLS FARGO BANK, NATIONAL
ASSOCIATION, as Administrative Agent, Swingline Lender, and Issuing Bank, the
several banks and other financial institutions or entities parties to the Credit
Agreement defined below (“Lenders and individually, a “Lender”),

 

W I T N E S S E T H:

 

WHEREAS, Borrower, Administrative Agent, Issuing Bank, Swingline Lender and
certain Lenders entered into that certain Amended and Restated Credit Agreement
dated as of July 1, 2010, as amended by a First Amendment to Amended and
Restated Credit Agreement dated September 7, 2011, by a Second Amendment to
Amended and Restated Credit Agreement dated December 29, 2011, by a Third
Amendment to Amended and Restated Credit Agreement dated June 29, 2012, by a
Fourth Amendment to Amended and Restated Credit Agreement dated December 20,
2012, by a Fifth Amendment to Amended and Restated Credit Agreement dated
December 11, 2013 and by a New Lender Agreement, Sixth Amendment to Amended and
Restated Credit Agreement dated March 20, 2014 and Seventh Amendment to Amended
and Restated Credit Agreement dated February 3, 2015 (as amended, the “Existing
Credit Agreement”), for the purpose and consideration therein expressed, whereby
Lenders became obligated to make Revolving Loans to Borrower as therein
provided; and

 

WHEREAS, Borrower, Administrative Agent, Issuing Bank, Swingline Lender and
Lenders desire to amend the Existing Credit Agreement as set forth herein.

 

NOW, THEREFORE, in consideration of the premises and the mutual covenants and
agreements contained herein and in the Existing Credit Agreement, in
consideration of the loans which may hereafter be made by Lenders to Borrower,
and for other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereto do hereby agree as follows.

 

ARTICLE I.

 

DEFINITIONS AND REFERENCES

 

Paragraph 1.1  Terms Defined in the Existing Credit Agreement.  Unless the
context otherwise requires or unless otherwise expressly defined herein, the
terms defined in the Existing Credit Agreement shall have the same meanings
whenever used in this Amendment.

 

Paragraph 1.2  Other Defined Terms.  Unless the context otherwise requires, the
following terms when used in this Amendment shall have the meanings assigned to
them in this Paragraph 1.2.

 

“Amendment Documents” means this Amendment and all other documents or
instruments delivered in connection herewith.

 

--------------------------------------------------------------------------------

 

“Credit Agreement” means the Existing Credit Agreement as amended hereby.

 

“Eighth Amendment Effective Date” means May 28, 2015.

 

ARTICLE II.

 

AMENDMENTS TO EXISTING CREDIT AGREEMENT

 

Paragraph 2.1  Additional Defined Terms.  Section 1.01 of the Existing Credit
Agreement is amended to add the following definitions:

 

“Consolidated Funded Debt means, as of any date of determination, for the
Borrower and its Subsidiaries on a consolidated basis, without duplication, the
sum of (a) Consolidated Senior Debt, (b) the outstanding principal amount of all
obligations and liabilities, whether current or long-term, for borrowed money
(including the Outstanding Amount of all Senior Unsecured Notes), (c) all
reimbursement obligations relating to letters of credit not otherwise included
in clause (a), (d) Capital Leases, (e) Synthetic Lease Obligations, and (f) all
Guaranty Obligations with respect to Indebtedness of the type specified in
subsections (a) through (e) above; provided however, that for the calculation of
the Total Leverage Ratio for the fiscal quarter ending June 30, 2015, clause
(b) of this definition shall be modified to read “(b) the outstanding principal
amount of all obligations and liabilities, whether current or long-term, for 
borrowed money (including the Outstanding Amount of all Senior Unsecured Notes
minus the excess, if any, of (A) the net cash proceeds received by Borrower from
the issuance of the Senior Unsecured Notes described in clause (g) of the
definition of “Senior Unsecured Notes” over (B) the amount of Tendered Senior
Unsecured Notes”.”

 

“Eighth Amendment means that certain Eighth Amendment to Amended and Restated
Credit Agreement dated as of the Eighth Amendment Effective Date, among the
Borrower, the Guarantors, Wells Fargo Bank, National Association, as
Administrative Agent, Issuing Bank and Swingline Lender and the Required
Lenders.”

 

“Eighth Amendment Effective Date means May 28, 2015.”

 

“Senior Unsecured Notes means collectively (a) the 6.750% Senior Notes due 2020
of the Borrower and MarkWest Energy Finance Corporation, as issuers, in the
original  principal amount of $500,000,000 issued pursuant to an Indenture dated
November 2, 2010 among the Borrower, its Subsidiaries party thereto and Wells
Fargo, as trustee (the “Base Indenture”), as supplemented and amended by the
First Supplemental Indenture dated November 2, 2010, among the Borrower, its
Subsidiaries party thereto and Wells Fargo, as trustee, (b) the 6.50% Senior
Notes due 2021 of the Borrower and MarkWest Energy Finance Corporation, as
issuers, in the original principal amount of $500,000,000 issued pursuant to the
Base Indenture, as supplemented and amended by the Second Supplemental Indenture
dated February 24, 2011, among the Borrower, its Subsidiaries party

 

2

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thereto and Wells Fargo, as trustee, (c) the 6.25% Senior Notes due 2022 of the
Borrower and MarkWest Energy Finance Corporation, as issuers, in the original
principal amount of $700,000,000 issued pursuant to the Base Indenture, as
supplemented and amended by the Fifth Supplemental Indenture dated November 3,
2011, among the Borrower, its Subsidiaries party thereto and Wells Fargo, as
trustee, (d) the 5.50% Senior Notes due 2023 of the Borrower and MarkWest Energy
Finance Corporation, as issuers, in the original principal amount of
$750,000,000 issued pursuant to the Base Indenture, as supplemented and amended
by the Eighth Supplemental Indenture dated August 10, 2012, among the Borrower,
its Subsidiaries party thereto and Wells Fargo, as trustee,  (e) the 4.50%
Senior Notes due 2023 of the Borrower and MarkWest Energy Finance Corporation,
as issuers, in the original principal amount of $1,000,000,000 issued pursuant
to the Base Indenture, as supplemented and amended by the Tenth Supplemental
Indenture dated January 10, 2013, among the Borrower, its Subsidiaries party
thereto and Wells Fargo, as trustee, (f) the 4.875% Senior Notes due 2024 of the
Borrower and MarkWest Energy Finance Corporation, as issuers, in the original
principal amount of $1,150,000,000 issued pursuant to the Base Indenture, as
supplemented and amended by the Thirteenth Supplemental Indenture dated
November 21, 2014, among the Borrower, its Subsidiaries party thereto and Wells
Fargo, as trustee, (g) the Senior Notes due 2025 expected to be issued by the
Borrower and MarkWest Energy Finance Corporation, as issuers, in an original
principal amount that is to be determined, and expected to be issued pursuant to
the Base Indenture, as supplemented and amended by a Supplemental Indenture
among the Borrower, its Subsidiaries party thereto and Wells Fargo, as trustee,
and (h) such other senior unsecured notes as may be issued by Borrower as
permitted by Section 7.04(h), in each case as amended or supplemented from time
to time.”

 

“Tendered Senior Unsecured Notes means the principal amount of the Senior
Unsecured Notes described in clauses (a), (b) and (c) of the definition of
“Senior Unsecured Notes” tendered by the respective holders thereof to the
Borrower for payment in full, together with accrued interest, substantially
contemporaneously with, or promptly following, the issuance of the Senior
Unsecured Notes described in clause (g) of the definition of “Senior Unsecured
Notes”.”

 

Paragraph 2.2  Existing Defined Terms.  The following definitions in
Section 1.01 of the Existing Credit Agreement are hereby amended in their
entirety to read as follows:

 

“Agreement means this Agreement, which amends and restates in its entirety the
Original Credit Agreement, as amended by the First Amendment, Second Amendment,
Third Amendment, Fourth Amendment, Fifth Amendment, Sixth Amendment, Seventh
Amendment and Eighth Amendment, as this Agreement may be further amended,
modified, supplemented or restated from time to time in accordance with the
terms hereof.”

 

3

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“Loan Documents means this Agreement, the First Amendment, the Second Amendment,
the Third Amendment, the Fourth Amendment, the Fifth Amendment, the Sixth
Amendment, the Seventh Amendment, the Eighth Amendment, each Note, the
Collateral Documents, the Issuing Documents, the Fee Letter, the First Amendment
Fee Letter, the Second Amendment Fee Letter, the Third Amendment Fee Letter, the
Sixth Amendment Fee Letter, any Loan Modification Agreement, and each and every
other agreement executed in connection with this Agreement; provided, however,
that in no event shall any Lender Hedging Agreement or any agreement in respect
of Banking Services Obligations constitute a Loan Document hereunder.”

 

ARTICLE III.

 

CONDITIONS OF EFFECTIVENESS

 

Paragraph 3.1  Eighth Amendment Effective Date.  This Amendment shall become
effective as of the date first above written when and only when Administrative
Agent shall have received this Amendment, executed by the Borrower, Lenders
comprising Required Lenders, the Administrative Agent, Issuing Bank, and
Swingline Lender and the Consent and Agreement attached to this Amendment
executed by the Guarantors.

 

ARTICLE IV.

 

REPRESENTATIONS AND WARRANTIES

 

Paragraph 4.1  Representations and Warranties.  In order to induce the Required
Lenders to enter into this Amendment, Borrower and each Guarantor represent and
warrant to each Lender that:

 

(a)           The representations and warranties contained in Article V of the
Existing Credit Agreement are true and correct in all material respects (except
to the extent that any representation and warranty that is qualified by
materiality shall be true and correct in all respects) at and as of the time of
the effectiveness hereof, except to the extent such representations and
warranties specifically refer to an earlier date, in which case they are true
and correct in all material respects (except to the extent that any
representation and warranty that is qualified by materiality shall be true and
correct in all respects) as of such earlier date.

 

(b)           Borrower and Guarantors are duly authorized to execute and deliver
this Amendment and the other Amendment Documents to which they are a party and
Borrower is and will continue to be duly authorized to borrow monies and to
perform its obligations under the Existing Credit Agreement. Borrower and
Guarantors have duly taken all limited partnership, limited liability company or
corporate action, as applicable, necessary to authorize the execution and
delivery of this Amendment and the other Amendment Documents to which they are a
party and, in the case of Borrower, to authorize the performance of the
obligations of Borrower hereunder and thereunder.

 

4

--------------------------------------------------------------------------------

 

(c)           When duly executed and delivered, each of this Amendment and the
Existing Credit Agreement will be a legal, valid and binding obligation of
Borrower, enforceable in accordance with its terms, except as limited by
bankruptcy, insolvency or similar laws of general application relating to the
enforcement of creditors’ rights and by equitable principles of general
application.

 

(d)           No Default or Event of Default exists or will exist prior to and
immediately after giving effect to this Amendment.

 

ARTICLE V.

 

MISCELLANEOUS

 

Paragraph 5.1   Ratification of Agreements.  The Existing Credit Agreement as
hereby amended is and shall continue to be in full force and effect and is
hereby ratified and confirmed in all respects.  The Loan Documents, as they may
be amended or affected by the various Amendment Documents, are hereby ratified
and confirmed in all respects. Any reference to the Existing Credit Agreement in
any Loan Document shall be deemed to be a reference to the Existing Credit
Agreement as hereby amended.  The execution, delivery and effectiveness of this
Amendment and the other Amendment Documents shall not, except as expressly
provided herein or therein, operate as a waiver of any right, power or remedy of
Lenders under the Existing Credit Agreement, the Notes, or any other Loan
Document nor constitute a waiver of any provision of the Existing Credit
Agreement, the Notes or any other Loan Document.  Without limiting the
generality of the foregoing, the Collateral Documents and all of the Collateral
described therein do and shall continue to secure the payment of all Obligations
of the Loan Parties under the Loan Documents, in each case, as amended by this
Amendment.

 

Paragraph 5.2   Survival of Agreements. All representations, warranties,
covenants and agreements of Borrower and the Subsidiary Guarantors herein shall
survive the execution and delivery of this Amendment and the performance hereof,
including without limitation the making or granting of the Loans, and shall
further survive until Payment in Full of the Obligations.

 

Paragraph 5.3  Loan Documents.  This Amendment, and each of the other Amendment
Documents, is a Loan Document, and all provisions in the Credit Agreement
pertaining to Loan Documents apply hereto and thereto.

 

Paragraph 5.4  Governing Law.  This Amendment shall be governed by and construed
in accordance with the laws of the State of New York and any applicable laws of
the United States of America in all respects, including construction, validity
and performance.

 

Paragraph 5.5  Miscellaneous.  Unless stated otherwise (a) the singular number
includes the plural and vice versa and words of any gender include each other
gender, in each case, as appropriate, (b) headings and captions may not be
construed in interpreting provisions and (c) if any part of this Amendment is
for any reason found to be unenforceable, all other portions of it nevertheless
remain enforceable.

 

Paragraph 5.6  Release.  As additional consideration for the execution, delivery
and performance of this Amendment by the parties hereto and to induce the
Administrative Agent,

 

5

--------------------------------------------------------------------------------

 

Issuing Bank, Swingline Lender and the Lenders to enter into this Amendment, the
Borrower warrants and represents to the Administrative Agent, Issuing Bank,
Swingline Lender and the Lenders that to its knowledge no facts, events,
statuses or conditions exist or have existed which, either now or with the
passage of time or giving of notice, or both, constitute or will constitute a
basis for any claim or cause of action against the Administrative Agent, Issuing
Bank, Swingline Lender or any Lender or any defense to (i) the payment of the
Obligations under the Notes and/or the Loan Documents, or (ii) the performance
of any of its obligations with respect to the Notes and/or the Loan Documents. 
In the event any such facts, events, statuses or conditions exist or have
existed, Borrower unconditionally and irrevocably hereby RELEASES, RELINQUISHES
and forever DISCHARGES Administrative Agent, Issuing Bank, Swingline Lender and
the Lenders, as well as their predecessors, successors, assigns, agents,
officers, directors, shareholders, employees and representatives, of and from
any and all claims, demands, actions and causes of action of any and every kind
or character, past or present, which Borrower may have against any of them or
their predecessors, successors, assigns, agents, officers, directors,
shareholders, employees and representatives arising out of or with respect to
(a) any right or power to bring any claim for usury or to pursue any cause of
action based on any claim of usury, and (b) any and all transactions relating to
the Loan Documents occurring prior to the date hereof, including any loss, cost
or damage, of any kind or character, arising out of or in any way connected with
or in any way resulting from the acts, actions or omissions of any of them, and
their predecessors, successors, assigns, agents, officers, directors,
shareholders, employees and representatives, including any breach of fiduciary
duty, breach of any duty of fair dealing, breach of confidence, breach of
funding commitment, undue influence, duress, economic coercion, conflict of
interest, negligence, bad faith, malpractice, intentional or negligent
infliction of mental distress, tortious interference with contractual relations,
tortious interference with corporate governance or prospective business
advantage, breach of contract, deceptive trade practices, libel, slander or
conspiracy, but in each case only to the extent permitted by applicable Law.

 

Paragraph 5.7  Counterparts; Fax.  This Amendment may be separately executed in
counterparts and by the different parties hereto in separate counterparts, each
of which when so executed shall be deemed to constitute one and the same
Amendment.  This Amendment and the other Amendment Documents may be validly
executed by facsimile or other electronic transmission. Delivery of an executed
counterpart of a signature page of this Amendment by facsimile or other
electronic transmission shall be effective as delivery of a manually executed
counterpart of this Amendment.

 

THIS AMENDMENT AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT
BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.  THERE ARE NO
UNWRITTEN ORAL AGREEMENTS OF THE PARTIES.

 

[The remainder of this page has been intentionally left blank.]

 

6

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IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly
executed and delivered by their proper and duly authorized officers as of the
day and year first above written.

 

BORROWER:

MARKWEST ENERGY PARTNERS, L.P.

 

 

 

By: MarkWest Energy GP, L.L.C., its general partner

 

 

 

By:

/s/ Nancy K. Buese

 

 

Nancy K. Buese

 

 

Executive Vice President & Chief Financial Officer

 

SIGNATURE PAGE 1

--------------------------------------------------------------------------------

 

ADMINISTRATIVE AGENT:

WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent

 

 

 

 

 

By:

/s/ Andrew Ostrov

 

 

Name:

Andrew Ostrov

 

 

Title:

Director

 

 

 

 

LENDERS:

WELLS FARGO BANK, NATIONAL ASSOCIATION, as a Lender, Issuing Bank and Swingline
Lender

 

 

 

 

 

By:

/s/ Andrew Ostrov

 

 

Name:

Andrew Ostrov

 

 

Title:

Director

 

SIGNATURE PAGE 2

--------------------------------------------------------------------------------

 

 

ROYAL BANK OF CANADA, as Lender

 

 

 

 

 

By:

/s/ Jason S. York

 

 

Name:

Jason S. York

 

 

Title:

Authorized Signatory

 

SIGNATURE PAGE 3

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COMPASS BANK,

 

as a Lender

 

 

 

 

 

By:

/s/ Rhianna Disch

 

Name:

Rhianna Disch

 

Title:

Vice President

 

SIGNATURE PAGE 4

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JPMORGAN CHASE BANK, N.A.,

 

as a Lender

 

 

 

 

 

By:

/s/ Stephanie Balette

 

Name:

Stephanie Balette

 

Title:

Authorized Officer

 

SIGNATURE PAGE 5

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MORGAN STANLEY BANK, N.A.

 

as a Lender

 

 

 

 

 

By:

/s/ Dmitriy Barskiy

 

Name:

Dmitriy Barskiy

 

Title:

Authorized Signatory

 

SIGNATURE PAGE 6

--------------------------------------------------------------------------------

 

 

U.S. BANK NATIONAL ASSOCIATION,

 

as a Lender

 

 

 

 

 

By:

/s/ John C. Lozano

 

Name:

John C. Lozano

 

Title:

Vice President

 

SIGNATURE PAGE 7

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BANK OF AMERICA, N.A.,

 

as a Lender

 

 

 

 

 

By:

/s/ Adam H. Fey

 

Name:

Adam H. Fey

 

Title:

Director

 

SIGNATURE PAGE 8

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BARCLAYS BANK PLC,

 

as a Lender

 

 

 

 

 

By:

/s/ Christopher Lee

 

Name:

Christopher Lee

 

Title:

Vice President

 

SIGNATURE PAGE 9

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SUNTRUST BANK,

 

as a Lender

 

 

 

 

 

By:

/s/ Shannon Juhan

 

Name:

Shannon Juhan

 

Title:

Director

 

SIGNATURE PAGE 10

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UBS AG, STAMFORD BRANCH,

 

as a Lender

 

 

 

 

 

By:

/s/ Darlene Arias

 

Name:

Darlene Arias

 

Title:

Director

 

 

By:

/s/ Houssem Daly

 

Name:

Houssem Daly

 

Title:

Associate Director

 

SIGNATURE PAGE 11

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CAPITAL ONE, N.A.,

 

as a Lender

 

 

 

 

 

By:

/s/ Nancy Mak

 

Name:

Nancy Mak

 

Title:

Sr. Vice President

 

SIGNATURE PAGE 12

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COMERICA BANK,

 

as a Lender

 

 

 

 

 

By:

/s/ Garrett R. Merrell

 

Name:

Garrett R. Merrell

 

Title:

Relationship Manager

 

SIGNATURE PAGE 13

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NATIXIS, NEW YORK BRANCH

 

as a Lender

 

 

 

 

 

By:

/s/ Stuart Murray

 

Name:

Stuart Murray

 

Title:

Managing Director

 

 

 

 

 

By:

/s/ Louis P. Laville III

 

Name:

Louis P. Laville III

 

Title:

Managing Director

 

SIGNATURE PAGE 14

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SUMITOMO MITSUI BANKING CORPORATION,

 

as a Lender

 

 

 

By:

/s/ David W. Kee

 

Name:

David W. Kee

 

Title:

Managing Director

 

SIGNATURE PAGE 15

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BNP PARIBAS

 

as a Lender

 

 

 

 

 

By:

/s/ Joseph Onischuk

 

Name:

Joseph Onischuk

 

Title:

Managing Director

 

 

 

 

 

By:

/s/ Reginald Crichlow

 

Name:

Reginald Crichlow

 

Title:

Vice President

 

SIGNATURE PAGE 16

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GOLDMAN SACHS BANK USA

 

as a Lender

 

 

 

By:

/s/ Jamie Minieri

 

Name:

Jamie Minieri

 

Title:

Authorized Signatory

 

SIGNATURE PAGE 17

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CITIBANK, N. A.

 

as a Lender

 

 

 

By:

/s/ Michael Zeller

 

Name:

Michael Zeller

 

Title:

Vice President

 

SIGNATURE PAGE 18

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PNC BANK, NATIONAL ASSOCIATION,

 

as a Lender

 

 

 

By:

/s/ Jonathan Luchansky

 

Name:

Jonathan Luchansky

 

Title:

Vice President

 

SIGNATURE PAGE 19

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Eighth Amendment

 

CONSENT AND AGREEMENT

 

Each of the undersigned (in their individual capacity, each a “Guarantor”), as
of the Eighth Amendment Effective Date hereby (i) consents to the provisions of
this Amendment and the transactions contemplated herein, (ii) ratifies and
confirms the Amended and Restated Guaranty dated as of July 1, 2010 made by it
for the benefit of Administrative Agent and Lenders executed pursuant to the
Existing Credit Agreement and the other Loan Documents, (iii) agrees that all of
its respective obligations and covenants thereunder shall remain unimpaired by
the execution and delivery of this Amendment and the other documents and
instruments executed in connection herewith, and (iv) agrees that the Amended
and Restated Guaranty and such other Loan Documents shall remain in full force
and effect.

 

 

MARKWEST ENERGY FINANCE CORPORATION

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

Nancy K. Buese

 

 

Executive Vice President & Chief Financial Officer

 

 

 

 

 

MARKWEST ENERGY OPERATING COMPANY, L.L.C.

 

 

 

By:

MarkWest Energy Partners, L.P.

 

 

its Managing Member

 

 

 

 

By:

MarkWest Energy GP, L.L.C.,

 

 

its General Partner

 

 

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

Nancy K. Buese

 

 

Executive Vice President & Chief Financial Officer

 

 

 

 

 

 

 

MARKWEST HYDROCARBON, INC.

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

Nancy K. Buese

 

 

Executive Vice President & Chief Financial Officer

 

1

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MARKWEST ENERGY GP, L.L.C.

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

Nancy K. Buese

 

 

Executive Vice President & Chief Financial Officer

 

 

 

MASON PIPELINE LIMITED LIABILITY COMPANY

 

 

 

 

By:

MarkWest Hydrocarbon, Inc.,

 

 

its sole Member

 

 

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

Nancy K. Buese

 

 

Executive Vice President & Chief Financial Officer

 

 

 

 

WEST SHORE PROCESSING COMPANY, L.L.C.

 

 

 

By:

MarkWest Energy Operating Company, L.L.C.,

 

 

its sole Member and Manager

 

 

 

 

By:

MarkWest Energy Partners, L.P.

 

 

its Managing Member

 

 

 

 

By:

MarkWest Energy GP, L.L.C.,

 

 

its General Partner

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

Nancy K. Buese

 

 

Executive Vice President & Chief Financial Officer

 

2

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MARKWEST MICHIGAN PIPELINE COMPANY, L.L.C.

 

 

 

MARKWEST OKLAHOMA GAS COMPANY, L.L.C.

 

 

 

By:

MarkWest Energy Operating Company, L.L.C.,

 

 

its Managing Manager

 

 

 

 

By:

MarkWest Energy Partners, L.P.

 

 

its Managing Member

 

 

 

 

By:

MarkWest Energy GP, L.L.C.,

 

 

its General Partner

 

 

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

Nancy K. Buese

 

 

Executive Vice President & Chief Financial Officer

 

3

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MARKWEST ENERGY APPALACHIA, L.L.C.

 

MARKWEST GAS SERVICES, L.L.C.

 

MARKWEST POWER TEX, L.L.C.

 

MARKWEST PINNACLE, L.L.C.

 

MARKWEST PNG UTILITY, L.L.C.

 

MARKWEST TEXAS PNG UTILITY, L.L.C.

 

MARKWEST BLACKHAWK, L.L.C.

 

MARKWEST NEW MEXICO, L.L.C.

 

MARKWEST ENERGY EAST TEXAS GAS COMPANY, L.L.C.

 

MARKWEST ENERGY SOUTH TEXAS GAS COMPANY, L.L.C.

 

MARKWEST PIPELINE COMPANY, L.L.C.

 

MARKWEST JAVELINA COMPANY, L.L.C.

 

MARKWEST JAVELINA PIPELINE COMPANY, L.L.C.

 

MARKWEST LIBERTY GAS GATHERING, L.L.C.

 

MARKWEST GAS MARKETING, L.L.C.

 

MARKWEST MARKETING, L.L.C.

 

MARKWEST MOUNTAINEER PIPELINE COMPANY, L.L.C.

 

MARKWEST UTICA OPERATING COMPANY, L.L.C.

 

MARKWEST TEXAS LPG PIPELINE, L.L.C.

 

MARKWEST ENERGY WEST TEXAS GAS COMPANY, L.L.C.

 

 

 

By:

MarkWest Energy Operating Company, L.L.C.,

 

 

its sole Member

 

 

 

 

By:

MarkWest Energy Partners, L.P.

 

 

its Managing Member

 

 

 

 

By:

MarkWest Energy GP, L.L.C.,

 

 

its General Partner

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

 

Nancy K. Buese

 

 

 

Executive Vice President & Chief Financial Officer

 

4

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MATREX L.L.C.

 

 

 

By:

West Shore Processing Company, L.L.C.,

 

 

its sole Member and Manager

 

 

 

 

By:

MarkWest Energy Operating Company, L.L.C.,

 

 

its sole Member and Manager

 

 

 

 

By:

MarkWest Energy Partners, L.P.

 

 

its Managing Member

 

 

 

 

By:

MarkWest Energy GP, L.L.C.,

 

 

its General Partner

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

 

Nancy K. Buese

 

 

 

Executive Vice President & Chief Financial Officer

 

 

 

 

 

 

 

 

 

MARKWEST MCALESTER, L.L.C.

 

MARKWEST BUFFALO CREEK GAS COMPANY, L.L.C.

 

 

 

By:

MarkWest Oklahoma Gas Company, L.L.C.,

 

 

its sole Member

 

 

 

 

By:

MarkWest Energy Operating Company, L.L.C.,

 

 

its sole Member

 

 

 

 

By:

MarkWest Energy Partners, L.P.

 

 

its Managing Member

 

 

 

 

By:

MarkWest Energy GP, L.L.C.,

 

 

its General Partner

 

 

 

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

 

Nancy K. Buese

 

 

 

Executive Vice President & Chief Financial Officer

 

5

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MARKWEST RANGER PIPELINE COMPANY, L.L.C.

 

 

 

By:

MarkWest Energy Appalachia, L.L.C.,

 

 

its sole Member

 

 

 

 

By:

MarkWest Energy Operating Company, L.L.C.,

 

 

its sole Member

 

 

 

 

By:

MarkWest Energy Partners, L.P.

 

 

its Managing Member

 

 

 

 

By:

MarkWest Energy GP, L.L.C.,

 

 

its General Partner

 

 

 

 

 

By:

/s/ Nancy K. Buese

 

 

 

Nancy K. Buese

 

 

 

Executive Vice President & Chief Financial Officer

 

6

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