exv10w1






Exhibit 10.1




FOURTH AMENDMENT TO COMBINED CREDIT AGREEMENTS




     THIS FOURTH AMENDMENT TO COMBINED CREDIT AGREEMENTS, dated as of June 20, 2008 (this
“Amendment”), is entered into by and among QUICKSILVER RESOURCES INC., a Delaware
corporation (the “U.S. Borrower”), QUICKSILVER RESOURCES CANADA INC., an Alberta, Canada
corporation (the “Canadian Borrower”), each of the Lenders (as defined in the U.S. Credit
Agreement (as hereinafter defined)) party hereto (together with its successors and assigns, the
“U.S. Lenders”), each of the Lenders (as defined in the Canadian Credit Agreement (as
hereinafter defined)) party hereto (together with its successors and assigns, the “Canadian
Lenders” and, together with the U.S. Lenders, the “Combined Lenders”), JPMORGAN CHASE
BANK, N.A., as global administrative agent (in such capacity, the “Global Administrative
Agent”), and JPMORGAN CHASE BANK, N.A., TORONTO BRANCH, as Canadian administrative agent (in
such capacity, the “Canadian Administrative Agent”).



W I T N E S S E T H:




     1. The U.S. Borrower, the Global Administrative Agent, the other Agents party thereto and the
U.S. Lenders are parties to that certain Amended and Restated Credit Agreement dated as of February
9, 2007 (as amended, supplemented, restated or otherwise modified from time to time, the “U.S.
Credit Agreement”), pursuant to which the U.S. Lenders agreed to make loans to, and extensions
of credit on behalf of, the U.S. Borrower.



     2. The Canadian Borrower, the Global Administrative Agent, the Canadian Administrative Agent,
the other Agents party thereto and the Canadian Lenders are parties to that certain Amended and
Restated Credit Agreement dated as of February 9, 2007 (as amended, supplemented, restated or
otherwise modified from time to time, the “Canadian Credit Agreement” and, together with
the U.S. Credit Agreement, the “Combined Credit Agreements”), pursuant to which the
Canadian Lenders agreed to make loans to, and extensions of credit on behalf of, the Canadian
Borrower.



     3. The parties to the Combined Credit Agreements intend to amend the Combined Credit
Agreements as follows:



     NOW, THEREFORE, in consideration of the premises and the mutual covenants herein contained,
the parties hereto agree as follows:



     I. Amendments to U.S. Credit Agreement.



     A. The definition of “Permitted Senior Notes Debt” contained in Section 1.1 of the
U.S. Credit Agreement is hereby amended in its entirety to read as follows:




     “Permitted Senior Notes Debt” means any unsecured Indebtedness (in
addition to, and not including, Existing Subordinate Debt) of the Borrower, and any
Guarantees thereof by Subsidiaries, incurred or assumed after the date of this
Agreement and resulting from one or more issuances of Borrower’s senior unsecured
notes and/or senior unsecured subordinate notes in an aggregate



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outstanding principal balance at any time of not greater than U.S. $500,000,000,
including all renewals, refinancings, replacements, and extensions thereof to the
extent permitted hereunder and made in accordance with the terms of the Combined
Loan Documents (including Section 7.14), provided, that, except, in
the case of each of clauses (ii), (iv) and (vi) below, to the extent the terms of
such Indebtedness as to the matters addressed in such clauses are materially the
same or at least as favorable for the Borrower as the terms of the Existing
Subordinate Notes issued pursuant to the Existing Subordinated Note Indenture
(disregarding for purposes of this exception, in the case of any issuance of the
Borrower’s senior unsecured notes, any provisions of the Existing Subordinate Notes
and/or the Existing Subordinated Note Indenture that expressly or effectively
operate to subordinate or condition any right or obligation of the Borrower to make
any payment (whether in connection with a purchase, repurchase, redemption,
defeasance, prepayment or otherwise) under or in respect of all or any of the
Existing Subordinate Notes in relation to any other Indebtedness), all such
Indebtedness (i) has a maturity date at least six (6) months after the Maturity
Date, (ii) except to the extent any such prepayments are made in accordance with
subsection (y) to the proviso in Section 7.14, is not permitted to be
prepaid (other than by the conversion of any such Indebtedness into the capital
stock of the Borrower) without the written consent of the Global Administrative
Agent and the Majority Lenders, (iii) has a coupon not in excess of nine percent
(9%), (iv) contains covenants not materially more onerous to Borrower and its
Subsidiaries than those contained in the Combined Loan Documents, (v) requires no
scheduled principal amortization prior to the sixth anniversary of the Closing Date,
and (vi) is otherwise on market terms and conditions as of the time of issuance
thereof.



     B. Section 7.14 of the U.S. Credit Agreement is hereby amended by inserting the following
sentence at the end of such Section:




     “Notwithstanding anything to the contrary contained herein or in any other
Combined Loan Document, the provisions of this Section 7.14 (or any
comparable provisions in any Combined Loan Document) shall in no event or
circumstance apply to or restrict any payment (whether in respect of a purchase,
repurchase, redemption, defeasance, prepayment or otherwise) that the Borrower is
obligated to make in respect of any of the Borrower’s senior unsecured notes that
constitute Permitted Senior Notes Debt.”



     II. Amendment to Canadian Credit Agreement. The definition of “Permitted Senior
Notes Debt” contained in Section 1.1 of the Canadian Credit Agreement is hereby amended in its
entirety to read as follows:




     “Permitted Senior Notes Debt” means any unsecured Indebtedness (in
addition to, and not including, Existing Subordinate Debt) of the Parent, and any
Guarantees thereof by Subsidiaries, incurred or assumed after the date of this
Agreement and resulting from one or more issuances of Parent’s senior unsecured
notes and/or senior unsecured subordinate notes in an aggregate outstanding
principal balance at any time of not greater than U.S. $500,000,000, including all



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renewals, refinancings, replacements, and extensions thereof to the extent
permitted hereunder and made in accordance with the terms of the Combined Loan
Documents (including Section 7.14 of the U.S. Credit Agreement), provided,
that, except, in the case of each of clauses (ii), (iv) and (vi) below, to the
extent the terms of such Indebtedness as to the matters addressed in such clauses
are materially the same or at least as favorable for the Parent as the terms of the
Existing Subordinate Notes issued pursuant to the Existing Subordinated Note
Indenture (disregarding for purposes of this exception, in the case of any issuance
of the Parent’s senior unsecured notes, any provisions of the Existing Subordinate
Notes and/or the Existing Subordinated Note Indenture that expressly or effectively
operate to subordinate or condition any right or obligation of the Parent to make
any payment (whether in connection with a purchase, repurchase, redemption,
defeasance, prepayment or otherwise) under or in respect of all or any of the
Existing Subordinate Notes in relation to any other Indebtedness), all such
Indebtedness (i) has a maturity date at least six (6) months after the Maturity
Date, (ii) except to the extent any such prepayments are made in accordance with
subsection (y) to the proviso in Section 7.14 of the U.S. Credit Agreement, is not
permitted to be prepaid (other than by the conversion of any such Indebtedness into
the capital stock of the Parent) without the written consent of the Global
Administrative Agent and the Majority Lenders, (iii) has a coupon not in excess of
nine percent (9%), (iv) contains covenants not materially more onerous to Parent and
its Subsidiaries than those contained in the Combined Loan Documents, (v) requires
no scheduled principal amortization prior to the sixth anniversary of the Closing
Date, and (vi) is otherwise on market terms and conditions as of the time of
issuance thereof.



     III. Effectiveness. This Amendment shall become effective as of the date (the
“Effective Date”) when the Global Administrative Agent shall have received counterparts
hereof duly executed by the U.S. Borrower, the Canadian Borrower, the Global Administrative Agent,
the Canadian Administrative Agent and the Majority Lenders (or, in the case of any party as to
which an executed counterpart shall not have been received, telegraphic, telex, or other written
confirmation from such party of execution of a counterpart hereof by such party).



     IV. Reaffirmation of Representations and Warranties. To induce the Combined Lenders
and the Global Administrative Agent to enter into this Amendment, the U.S. Borrower and the
Canadian Borrower hereby reaffirm, as of the date hereof, the following:




          (i) The representations and warranties of each Loan Party (as such term is defined in
the U.S. Credit Agreement and the Canadian Credit Agreement, collectively, the “Combined
Loan Parties”) set forth in the Combined Loan Documents to which it is a party are true
and correct on and as of the date hereof (or, if stated to have been made expressly as of an
earlier date, were true and correct in all material respects as of such date and, except to
the extent waived in writing by the Combined Lenders, the Required Lenders, the Majority
Lenders, the U.S. Lenders or the U.S. Required Lenders, as applicable).



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          (ii) Each of the Combined Loan Parties (a) is a corporation or limited partnership duly
incorporated or organized (as applicable), validly existing and in good standing under the
laws of its jurisdiction of incorporation or organization, (b) has all corporate or limited
partnership power (as applicable) and all material governmental licenses, authorizations,
consents and approvals required to carry on its businesses as now conducted and as proposed
to be conducted, and (c) is duly qualified to transact business as a foreign corporation or
limited partnership in each jurisdiction where a failure to be so qualified would reasonably
be expected to have a Material Adverse Effect.




          (iii) The execution, delivery and performance of this Amendment and the other Combined
Loan Documents by each Combined Loan Party (to the extent each Combined Loan Party is a
party to this Amendment and such Combined Loan Documents) (a) are within such Combined Loan
Party’s corporate or limited partnership powers, (b) when executed will be duly authorized
by all necessary corporate or limited partnership action, (c) require no action by or in
respect of, or filing with, any Governmental Authority (other than (1) actions or filings
pursuant to the Exchange Act and (2) actions or filings that have been taken or made and are
in full force and effect) and (d) do not contravene, or constitute a default under, any
provision of applicable Governmental Rule (including, without limitation, Regulation U) or
of the articles or certificate of incorporation, bylaws, regulations, partnership agreement
or comparable charter documents of any Combined Loan Party or of any agreement, judgment,
injunction, order, decree or other instrument binding upon any Combined Loan Party or result
in the creation or imposition of any Lien on any Borrowing Base Property or Collateral other
than the Liens securing the Combined Obligations.




          (iv) This Amendment and each other Combined Loan Document constitutes, or when executed
and delivered will constitute, valid and binding obligations of each Combined Loan Party
which is a party thereto, enforceable against each such Combined Loan Party which executes
the same in accordance with its terms except as the enforceability thereof may be limited by
(a) bankruptcy, insolvency, reorganization, moratorium, or similar Governmental Rules
affecting creditors’ rights generally, and (b) equitable principles of general applicability
(whether enforcement is sought by proceedings at law or in equity).




          (v) Neither a Default nor an Event of Default has occurred and will exist under either
Combined Credit Agreement after giving effect to the transactions contemplated by this
Amendment or the other Combined Loan Documents. Neither the U.S. Borrower or any of its
Subsidiaries nor the Canadian Borrower or any of its Subsidiaries is in default under, nor
has any event or circumstance occurred which, but for the expiration of any applicable grace
period or the giving of notice, or both, would constitute a default under, any Material
Agreement to which the U.S. Borrower or any of its Subsidiaries or the Canadian Borrower or
any of its Subsidiaries is a party or by which the U.S. Borrower or any of its Subsidiaries
or the Canadian Borrower or any of its Subsidiaries is bound which default would reasonably
be expected to have a Material Adverse Effect. The U.S. Borrower is in compliance with the
financial covenants set forth in Article VI of the U.S. Credit Agreement.



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          (vi) No event or events have occurred since December 31, 2007 which individually or in
the aggregate would reasonably be expected to have a Material Adverse Effect.



     V. Defined Terms. Terms used herein when defined in the U.S. Credit Agreement
(including, to the extent applicable, after giving effect to this Amendment) shall have the same
meanings herein unless the context otherwise requires.



     VI. Reaffirmation of Combined Credit Agreements. This Amendment shall be deemed to be
an amendment to the Combined Credit Agreements, and the Combined Credit Agreements, as amended
hereby, are hereby ratified, approved and confirmed in each and every respect. All references to
the Combined Credit Agreements herein and in any other document, instrument, agreement or writing
shall hereafter be deemed to refer to the Combined Credit Agreements as amended hereby.



     VII. Governing Law. THIS AMENDMENT SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF
THE STATE OF TEXAS.



     NOTWITHSTANDING THE FOREGOING SENTENCE AND AFTER GIVING EFFECT TO THE TEXTUAL AMENDMENTS
CONTAINED IN SECTIONS I AND II OF THIS AMENDMENT, (i) THE U.S. CREDIT AGREEMENT (AS
AMENDED HEREBY) SHALL CONTINUE TO BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW
SPECIFIED IN SECTION 10.9(a) OF THE U.S. CREDIT AGREEMENT, AND (ii) THE CANADIAN CREDIT AGREEMENT
(AS AMENDED HEREBY) SHALL CONTINUE TO BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW
SPECIFIED IN SECTION 10.9(a) OF THE CANADIAN CREDIT AGREEMENT.



     VIII. Severability of Provisions. Any provision of this Amendment held to be invalid,
illegal or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the
extent of such invalidity, illegality or unenforceability without affecting the validity, legality
and enforceability of the remaining provisions hereof; and the invalidity of a particular provision
in a particular jurisdiction shall not invalidate such provision in any other jurisdiction.



     IX. Counterparts. This Amendment may be executed in counterparts (and by different
parties hereto on different counterparts), each of which shall constitute an original, but all of
which when taken together shall constitute a single contract. Delivery of an executed counterpart
of a signature page of this Amendment by telecopy (or other electronic transmission acceptable to
the Global Administrative Agent) shall be effective as delivery of a manually executed counterpart
of this Amendment.



     X. Headings. Article and Section headings used herein are for convenience of
reference only, are not part of this Amendment and shall not affect the construction of, or be
taken into consideration in interpreting, this Amendment.



     XI. Successors and Assigns. This Amendment shall be binding upon and inure to the
benefit of the parties hereto and their respective successors and assigns permitted hereby
(including any Affiliate of an Issuing Bank that issues any Letter of Credit), except that neither



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the U.S. Borrower nor the Canadian Borrower may assign or otherwise transfer any of its rights
or obligations hereunder without the prior written consent of the Global Administrative Agent, each
Issuing Bank and each Combined Lender (and any attempted assignment or transfer by either the U.S.
Borrower or the Canadian Borrower without such consent shall be null and void).




     XII. No Oral Agreements. THIS AMENDMENT, THE COMBINED CREDIT AGREEMENTS, AS AMENDED
HEREBY, AND THE OTHER COMBINED LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN AND AMONG THE
PARTIES WITH RESPECT TO THE SUBJECT MATTER HEREOF AND THEREOF AND MAY NOT BE CONTRADICTED BY
EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO
UNWRITTEN ORAL AGREEMENTS AMONG THE PARTIES.



     XIII. Loan Document. This Amendment constitutes a “Loan Document,” a “Canadian Loan
Document” and a “Combined Loan Document” under and as defined in the U.S. Credit Agreement, and a
“Loan Document,” a “U.S. Loan Document” and a “Combined Loan Document” under and as defined in the
Canadian Credit Agreement.



[Signature Pages to Follow]




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     IN WITNESS WHEREOF, the U.S. Borrower, the Canadian Borrower, the undersigned Combined
Lenders, the Global Administrative Agent and the Canadian Administrative Agent have executed this
Amendment as of the date first above written.



U.S. BORROWER




QUICKSILVER RESOURCES INC.,

a Delaware corporation, as U.S. Borrower




	 	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ MarLu Hiller	 	 
	 	 	 	 	 	 	 
	 

	 	Name:
	 	 	 	MarLu Hiller	 	 
	 

	 	Title:
	 	 	 	Vice President – Treasurer	 	 






CANADIAN BORROWER 




QUICKSILVER RESOURCES CANADA INC.,

an Alberta, Canada corporation, as Canadian Borrower




	 	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ MarLu Hiller	 	 
	 	 	 	 	 	 	 
	 

	 	Name:
	 	 	 	MarLu Hiller	 	 
	 

	 	Title:
	 	 	 	Vice President – Treasurer	 	 






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Fourth Amendment to Combined Credit Agreements

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AGENTS AND COMBINED LENDERS




JPMORGAN CHASE BANK, N.A., as Global Administrative

Agent and as a U.S. Lender




	 	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ J. Scott Fowler	 	 
	 	 	 	 	 	 	 
	 

	 	Name:
	 	 	 	J. Scott Fowler	 	 
	 

	 	Title:
	 	 	 	Senior Vice President	 	 






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JPMORGAN CHASE BANK, N.A., TORONTO 
BRANCH,
as a Canadian Administrative Agent

and as a Canadian Lender




	 	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ Michael N. Tam	 	 
	 	 	 	 	 	 	 
	 

	 	Name:
	 	 	 	Michael N. Tam	 	 
	 

	 	Title:
	 	 	 	Senior Vice President	 	 






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Fourth Amendment to Combined Credit Agreements

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BANK OF AMERICA, N.A., as a U.S. Lender




	 	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ Ronald E. McKaig	 	 
	 	 	 	 	 	 	 
	 

	 	Name:
	 	 	 	Ronald E. McKaig	 	 
	 

	 	Title:
	 	 	 	Senior Vice President	 	 






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Fourth Amendment to Combined Credit Agreements

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BNP PARIBAS, as a U.S. Lender




	 	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ Betsy Jocher	 	 
	 	 	 	 	 	 	 
	 

	 	Name:

Title:
	 	 	 	Betsy Jocher

Director	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ Richard Hawthorne	 	 
	 	 	 	 	 	 	 
	 

	 	Name:
	 	 	 	Richard Hawthorne	 	 
	 

	 	Title:
	 	 	 	Director	 	 






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Fourth Amendment to Combined Credit Agreements

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FORTIS CAPITAL CORP., as a U.S. Lender




	 	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ Michael Jones	 	 
	 	 	 	 	 	 	 
	 

	 	Name:
	 	 	 	Michael Jones	 	 
	 

	 	Title:
	 	 	 	Director	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	By:	 	/s/ Ilene Fowler	 	 
	 	 	 	 	 	 	 
	 

	 	Name:
	 	 	 	Ilene Fowler	 	 
	 

	 	Title:
	 	 	 	Director	 	 






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	 	 	THE BANK OF NOVA SCOTIA, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ David Mills
	 

	 	 	 	 
	 

	 	Name:
	 	David Mills
	 

	 	Title:
	 	Director






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Fourth Amendment to Combined Credit Agreements

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	 	 	DEUTSCHE BANK TRUST COMPANY
	 	 	AMERICAS, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Erin Morrissey
	 

	 	 	 	 
	 

	 	Name:
	 	Erin Morrissey
	 

	 	Title:
	 	Vice President
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Dusan Lazarov
	 

	 	 	 	 
	 

	 	Name:
	 	Dusan Lazarov
	 

	 	Title:
	 	Vice President






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Fourth Amendment to Combined Credit Agreements

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	 	 	THE ROYAL BANK OF SCOTLAND plc, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Robert E. Poirrer, Jr.
	 

	 	 	 	 
	 

	 	Name:
	 	Robert E. Poirrier, Jr.
	 

	 	Title:
	 	Senior Vice President






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Fourth Amendment to Combined Credit Agreements

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	 	 	CALYON NEW YORK BRANCH, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Name:	 	 
	 

	 	 	 	 
	 

	 	Title:	 	 
	 

	 	 	 	 
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Name:	 	 
	 

	 	 	 	 
	 

	 	Title:	 	 
	 

	 	 	 	 





[Signature Page]

Fourth Amendment to Combined Credit Agreements

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	 	 	CITIBANK, N.A., as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Todd Mogil
	 

	 	 	 	 
	 

	 	Name:
	 	Todd Mogil
	 

	 	Title:
	 	Vice President






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	 	 	UNION BANK OF CALIFORNIA, N.A., as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Name:	 	 
	 

	 	 	 	 
	 

	 	Title:	 	 
	 

	 	 	 	 





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	 	 	WELLS FARGO BANK, N.A., as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ David C. Brooks
	 

	 	 	 	 
	 

	 	Name:
	 	David C. Brooks
	 

	 	Title:
	 	Vice President






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Fourth Amendment to Combined Credit Agreements

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	 	 	TORONTO DOMINION (TEXAS) LLC, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Debbi L. Brito
	 

	 	 	 	 
	 

	 	Name:
	 	Debbi L. Brito
	 

	 	Title:
	 	Authorized Signatory






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	 	 	U.S. BANK NATIONAL ASSOCIATION, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Daria Mahoney
	 

	 	 	 	 
	 

	 	Name:
	 	Daria Mahoney
	 

	 	Title:
	 	Vice President






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	 	 	SUMITOMO MITSUI BANKING CORPORATION, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Name:	 	 
	 

	 	 	 	 
	 

	 	Title:	 	 
	 

	 	 	 	 





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	 	 	COMPASS BANK, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Murray E. Brasseux
	 

	 	 	 	 
	 

	 	Name:
	 	Murray E. Brasseux
	 

	 	Title:
	 	Executive Vice President






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	 	 	SOCIÉTÉ GÉNÉRALE, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Stephen W. Warfel
	 

	 	 	 	 
	 

	 	Name:
	 	Stephen W. Warfel
	 

	 	Title:
	 	Managing Director






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	 	 	COMERICA BANK, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Peter L. Sefzik
	 

	 	 	 	 
	 

	 	Name:
	 	Peter L. Sefzik
	 

	 	Title:
	 	Vice President






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	 	 	STERLING BANK, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Melissa Bauman
	 

	 	 	 	 
	 

	 	Name:
	 	Melissa Bauman
	 

	 	Title:
	 	Senior Vice President






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	 	 	CIBC INC., as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Kathryn G. Casparian
	 

	 	 	 	 
	 

	 	Name:
	 	Kathryn G. Casparian
	 

	 	Title:
	 	Chief Administrative Officer






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Fourth Amendment to Combined Credit Agreements

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	 	 	KEYBANK, N.A., as a U.S. Lender
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	Name:
	 	 

	 	 
	 

	 	Title:
	 	 

	 	 
	 

	 	 	 	 

	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

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	 	 	EXPORT DEVELOPMENT CANADA, as a U.S. Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Janine Dopson
 

Janine Dopson
	 	 
	 

	 	Title:
	 	Loan Asset Manager	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Howard Clysdale
 

Howard Clysdale
	 	 
	 

	 	Title:
	 	Portfolio Manager	 	 






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Fourth Amendment to Combined Credit Agreements

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	 	 	BARCLAYS BANK PLC, as a U.S. Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Joseph Gyurindak
 

Joseph Gyurindak
	 	 
	 

	 	Title:
	 	Director	 	 






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	 	 	CREDIT SUISSE, CAYMAN ISLANDS BRANCH, as a U.S.
Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Vanessa Gomez
 

Vanessa Gomez
	 	 
	 

	 	Title:
	 	Director	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Nupur Kumar
 

Nupur Kumar
	 	 
	 

	 	Title:
	 	Associate	 	 






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	 	 	BANK OF AMERICA, N.A. (by its Canada branch), as a
Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Medina Sales De Andrade
 

Medina Sales De Andrade
	 	 
	 

	 	Title:
	 	Vice President	 	 






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Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	BNP PARIBAS (CANADA), as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Chris Rice
 

Chris Rice
	 	 
	 

	 	Title:
	 	Vice President	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Michael Gosselin
 

Michael Gosselin
	 	 
	 

	 	Title:
	 	Managing Director	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	FORTIS CAPITAL (CANADA) LTD., as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Peter Boogers
 

Peter Boogers
	 	 
	 

	 	Title:
	 	Director	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Doug Clark
 

Doug Clark
	 	 
	 

	 	Title:
	 	Director	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 




 









 








	 	 	 	 	 	 	 
	 	 	THE BANK OF NOVA SCOTIA, as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Andrew Kellock
 

Andrew Kellock
	 	 
	 

	 	Title:
	 	Director	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Todd Kennedy
 

Todd Kennedy
	 	 
	 

	 	Title:
	 	Associate	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 




 









 








	 	 	 	 	 	 	 
	 	 	DEUTSCHE BANK AG CANADA BRANCH, as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Daniel W. Sooley
 

Daniel W. Sooley
	 	 
	 

	 	Title:
	 	Chief Legal Officer	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Marcellus Leung
 

Marcellus Leung
	 	 
	 

	 	Title:
	 	Assistant Vice President	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 






 









 








	 	 	 	 	 	 	 
	 	 	CITIBANK, N.A., CANADIAN BRANCH, as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Ivan Davey
 

Ivan Davey
	 	 
	 

	 	Title:
	 	Authorised Signer	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	UNION BANK OF CALIFORNIA, N.A., CANADA BRANCH, as a
Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	Name:
	 	 

	 	 
	 

	 	Title:
	 	 

	 	 
	 

	 	 	 	 

	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	WELLS FARGO
FINANCIAL CORPORATION CANADA, 

as a
Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Nick Scarfo
 

Nick Scarfo
	 	 
	 

	 	Title:
	 	Vice President	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	THE TORONTO-DOMINION BANK, as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Debbi L. Brito
 

Debbi L. Brito
	 	 
	 

	 	Title:
	 	Authorized Signatory	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	U.S. BANK NATIONAL ASSOCIATION, as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	Name:
	 	 

	 	 
	 

	 	Title:
	 	 

	 	 
	 

	 	 	 	 

	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	SUMITOMO MITSUI BANKING
CORPORATION OF CANADA, 
as a
Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	Name:
	 	 

	 	 
	 

	 	Title:
	 	 

	 	 
	 

	 	 	 	 

	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	SOCIÉTÉ GÉNÉRALE (CANADA BRANCH), as a Canadian

Lender
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ David Baldoni	 	 
	 

	 	Name:
	 	 

David Baldoni
	 	 
	 

	 	Title:
	 	Managing Director	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Paul Primavesi
 

Paul Primavesi
	 	 
	 

	 	Title:
	 	Vice President	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 




 









 








	 	 	 	 	 	 	 
	 	 	COMERICA BANK, CANADA BRANCH, as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Omer Ahmed
 

Omer Ahmed
	 	 
	 

	 	Title:
	 	Portfolio Manager	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	CANADIAN IMPERIAL
BANK OFCOMMERCE,
 as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Randy Geislinger
 

Randy Geislinger
	 	 
	 

	 	Title:
	 	Executive Director	 	 
	 
	 	 	 	 	 	 
	 

	 	By: 

Name:
	 	/s/ Chris Perks
 

Chris Perks
	 	 
	 

	 	Title:
	 	Executive Director	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	KEYBANK, N.A., as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	Name:
	 	 

	 	 
	 

	 	Title:
	 	 

	 	 
	 

	 	 	 	 

	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 






 









 








	 	 	 	 	 	 	 
	 	 	BARCLAYS BANK PLC, as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Joseph Gyurindak
 

Joseph Gyurindak
	 	 
	 

	 	Title:
	 	Director	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc. 





 









 








	 	 	 	 	 	 	 
	 	 	CREDIT SUISSE, TORONTO BRANCH, as a Canadian Lender
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Alain Daoust
 

Alain Daoust
	 	 
	 

	 	Title:
	 	Director	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ Steve W. Fuh
 

Steve W. Fuh
	 	 
	 

	 	Title:
	 	Vice-President	 	 






[Signature Page]

Fourth Amendment to Combined Credit Agreements

Quicksilver Resources Inc.