Document:

exv10w30

Exhibit 10.30

FIRST AMENDMENT TO COMBINED CREDIT AGREEMENTS

          THIS FIRST AMENDMENT TO COMBINED CREDIT AGREEMENTS, dated as of February 4, 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, each of the Canadian Lenders (as defined in the
U.S. Credit Agreement) party hereto, 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
Lenders (the “U.S. Lenders” and, together with the Canadian Lenders, the “Combined
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 U.S. Borrower has advised the Global Administrative Agent, the Canadian Administrative
Agent and the Combined Lenders that it has created a new Wholly-Owned Subsidiary named 1373159
Alberta Ltd., an Alberta, Canada corporation (“Canadian Newco”), the Common Shares of which
Subsidiary are owned by the U.S. Borrower and the Series 1 Preferred Shares of which Subsidiary are
owned by the Canadian Borrower which Subsidiary will be designated, or otherwise become, a Material
Subsidiary (as defined in the U.S. Credit Agreement) on or prior to the Effective Date (as
hereinafter defined).

          4.      In connection with the creation of Canadian Newco, 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 “Guarantor” contained in Section 1.1 of the U.S. Credit Agreement
is hereby amended in its entirety to read as follows:

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          “Guarantor” means each Material Subsidiary listed on Exhibit L
(except QR Canada and Foreign Subsidiaries) under the heading “Material
Subsidiaries” and each Subsidiary that is required to execute a Guaranty pursuant to
Section 5.15.

          B.      The definition of “Permitted Investments” contained in Section 1.1 of the
U.S. Credit Agreement is hereby amended by (i) deleting the word “and” at the end of subsection (r)
thereof; (ii) replacing the period at the end of subsection (s) thereof with “;”; and
(iii) inserting the following subsections (t), (u), (x) and (y) following subsection (s) thereof:

          “(t)      all Investments by the Canadian Borrower in Canadian Newco, including,
without limitation, any farm-out agreement or similar contract entered into between
the Canadian Borrower and Canadian Newco so long as (i) the Equity Interests of
Canadian Newco owned by the Borrower have been pledged to the Global Administrative
Agent pursuant to a Pledge Agreement in accordance with, and as and to the extent
required by (A) Sections 5.15 and 5.17, (B) Sections 5.9 and
5.10 of the Canadian Credit Agreement, and (C) the other terms and
conditions of the Loan Documents, and (ii) Canadian Newco has provided a Guaranty
and Debenture in accordance with, and as and to the extent required by (A)
Sections 5.9 and 5.10 of the Canadian Credit Agreement, and (B) the
other terms and conditions of the Loan Documents;

          (u)      the Investment by the Borrower in the Common Shares of Canadian Newco;

          (x)      the Investment by the Canadian Borrower in the Series 1 Preferred Shares of
Canadian Newco; and

          (y)      the Investment by the Borrower in common units of BreitBurn Operating,
L.P., a Delaware limited partnership, approved by the Combined Lenders pursuant to
an agreement dated as of October 25, 2007.”

          C.      Section 1.1 of the U.S. Credit Agreement is hereby amended by inserting the following
definition of “Canadian Newco” in appropriate alphabetical order:

          “Canadian Newco” means 1373159 Alberta Ltd., an Alberta, Canada
corporation and a Wholly-Owned Subsidiary of the Borrower.

          D.      Exhibit L to the U.S. Credit Agreement is hereby amended by replacing Exhibit L to the U.S.
Credit Agreement with Exhibit L to this Amendment.

          II.      Amendments to Canadian Credit Agreement.

          A.      The definition of “Guarantor” contained in Section 1.1 of the Canadian Credit
Agreement is hereby amended in its entirety to read as follows:

          “Guarantor” means collectively (i) the Parent, (ii) Canadian Newco,
(iii) each Material Subsidiary, and (iv) each U.S. Material Subsidiary that now or

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hereafter executes and delivers a U.S. Material Subsidiary Guaranty, including
each Material Subsidiary and each U.S. Material Subsidiary that is required to
execute a Guaranty pursuant to Section 5.9.

          B.      The definition of “Guaranty” contained in Section 1.1 of the Canadian Credit
Agreement is hereby amended in its entirety to read as follows

          “Guaranty” means collectively (i) the Parent Guaranty, (ii) the
Canadian Newco Guaranty, (iii) each Material Subsidiary Guaranty, and (iv) each U.S.
Material Subsidiary Guaranty. The term “Guaranties” shall include each and
every Guaranty executed and delivered by the Parent, Canadian Newco, each Material
Subsidiary and each U.S. Material Subsidiary.

          C.      Section 1.1 of the Canadian Credit Agreement is hereby amended by inserting the following
definitions of “Canadian Newco” and “Canadian Newco Guaranty” in appropriate
alphabetical order:

          “Canadian Newco” means 1373159 Alberta Ltd., an Alberta, Canada
corporation and a Wholly-Owned Subsidiary of the Parent.

          “Canadian Newco Guaranty” means a Guaranty executed and delivered by
Canadian Newco in favor of the Global Administrative Agent and substantially in the
form of the Parent Guaranty, as such Guaranty is amended, supplemented, restated or
otherwise modified from time to time in accordance with the terms of this Agreement
and the other Loan Documents.

          III.      Effectiveness. This Amendment shall become effective as of the date (the
“Effective Date”) when the Global Administrative Agent shall have received:

          A.      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).

          B.      The U.S. Borrower and the Canadian Borrower shall have satisfied all of the conditions set
forth in the Combined Loan Documents, including, without limitation, Section 5.15 of the U.S.
Credit Agreement and Section 5.9 of the Canadian Credit Agreement, with respect to the creation of
Canadian Newco and the permissibility of Investments by the Canadian Borrower in Canadian Newco,
including, without limitation, the following:

          (i)      the Global Administrative Agent shall have received counterparts of a Pledge
Agreement, dated as of the Effective Date, duly executed and delivered by the U.S. Borrower,
together with the following:

               (a)      to the extent the Equity Interests are certificated, certificates
representing 100% of the outstanding Equity Interests of Canadian Newco owned by the
U.S. Borrower (except that, with respect to security for the

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Obligations, such certificates representing Equity Interests shall be limited
to 65% of the total combined voting power of all classes of voting Equity Interests
of Canadian Newco owned by the U.S. Borrower and 100% of all non-voting Equity
Interests of Canadian Newco owned by the U.S. Borrower), and powers and instruments
of transfer, endorsed in blank, with respect to such certificates; and

               (b)      all documents and instruments, including Uniform Commercial Code Financing
Statements (Form UCC-1), required by law or reasonably requested by the Global
Administrative Agent to be filed, registered or recorded to create or perfect the
Liens intended to be created under such Pledge Agreement;

          (ii)      the Global Administrative Agent shall have received counterparts of a Pledge
Agreement, dated as of the Effective Date, duly executed and delivered by the Canadian
Borrower, together with the following:

               (a)      to the extent the Equity Interests are certificated, certificates
representing 100% of the outstanding Equity Interests of Canadian Newco owned by the
Canadian Borrower, and powers and instruments of transfer, endorsed in blank, with
respect to such certificates; and

               (b)      all documents and instruments, including Personal Property Security Act
filings, required by law or reasonably requested by the Global Administrative Agent
to be filed, registered or recorded to create or perfect the Liens intended to be
created under such Pledge Agreement;

          (iii)      the Global Administrative Agent shall have received counterparts of the Canadian
Newco Guaranty (as defined in the Canadian Credit Agreement), duly executed and delivered by
Canadian Newco; and

          (iv)      the Global Administrative Agent shall have received counterparts of a Debenture
duly executed and delivered by Canadian Newco, which Debenture shall create a floating
charge in favor of the Global Administrative Agent for the benefit of the Canadian Lenders
on substantially all of the Borrowing Base Properties (as defined in the Canadian Credit
Agreement) or proposed Borrowing Base Properties owned by Canadian Newco, and a Lien in and
to all of Canadian Newco’s present and after-acquired personal property, together with such
other documents or instruments as the Global Administrative Agent may reasonably request.

          C.      The Global Administrative Agent shall have received UCC Searches, all dated reasonably
close to the Effective Date, requested by the Global Administrative Agent and in form and substance
reasonably satisfactory to the Global Administrative Agent.

          D.      The Global Administrative Agent shall have received a certificate of an Authorized Officer
of Canadian Newco dated as of the Effective Date, certifying:

          (i)      that attached to such certificate is (a) a true and complete copy of the Organic
Documents of Canadian Newco, as in effect on the date of such certificate,

4

 

(b) a true and complete copy of a certificate from the applicable Governmental
Authority of the jurisdiction of Canadian Newco’s organization to the effect that such
entity is validly existing in such jurisdiction, and (c) a true and complete copy of a
certificate from the appropriate Governmental Authority of each jurisdiction (without
duplication) to the effect that Canadian Newco is duly qualified to transact business in
such jurisdiction as a foreign entity, if the failure to be so qualified would reasonably be
expected to have a Material Adverse Effect;

          (ii)      that attached to such certificate is a true and complete copy of resolutions duly
adopted by the board of directors of Canadian Newco, authorizing the execution, delivery and
performance of such of the Combined Loan Documents to which Canadian Newco is or is intended
to be a party;

          (iii)      that attached thereto is (a) a true and complete copy of a certificate of status
from the applicable Governmental Authority of the jurisdiction of Canadian Newco’s
organization as to the existence and the good standing of Canadian Newco, dated as of a
recent date, and (b) a true and complete copy of a certificate from the appropriate
Governmental Authority of each jurisdiction (without duplication) to the effect that
Canadian Newco is in good standing in such jurisdiction as a foreign entity, if the failure
to be so qualified would reasonably be expected to have a Material Adverse Effect; and

          (iv)      as to the incumbency and specimen signature of each Authorized Officer of Canadian
Newco executing such of the Combined Loan Documents to which Canadian Newco is or is
intended to be a party.

          E.      The Global Administrative Agent shall have received opinions, dated the Effective Date,
addressed to the Global Administrative Agent, the Canadian Administrative Agent and all Lenders,
from (i) McCarthy Tétrault LLP, counsel to Canadian Newco, (ii) Jones Day, U.S. counsel to the U.S.
Borrower, and (iii) the General Counsel of the U.S. Borrower, in each case in form and substance
reasonably satisfactory to the Global Administrative Agent, such opinions covering such matters
relating to the U.S. Borrower, Canadian Newco and the execution and delivery of the Combined Loan
Documents to which each is or is intended to be a party pursuant to Section III.B of this
Amendment, as applicable, as the Global Administrative Agent shall reasonably request.

          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, and including, without
limitation, Canadian Newco, 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

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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).

          (ii)      Each of the Combined Loan Parties (a) is a corporation, partnership or limited
liability company 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, partnership or limited liability company 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, partnership or limited liability company 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 Agreement and such Combined Loan Documents) (a) are within such Combined Loan
Party’s corporate powers, (b) when executed will be duly authorized by all necessary
corporate action, (c) require no action by or in respect of, or filing with, any
Governmental Authority (other than (i) actions or filings pursuant to the Exchange Act and
(ii) 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
(i) bankruptcy, insolvency, reorganization, moratorium, or similar Governmental Rules
affecting creditors’ rights generally, and (ii) 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

6

 

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.

          (vi)      No event or events have occurred since December 31, 2006 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.

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          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
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
	 

	 	 	 	 
	 

	 	 	 	MarLu Hiller, Vice President – Treasurer
	 
	 	 	 	 
	 	 	CANADIAN BORROWER
	 
	 	 	 	 
	 	 	QUICKSILVER RESOURCES CANADA INC.,
	 	 	an Alberta, Canada corporation, as Canadian
 Borrower
	 
	 	 	 	 
	 

	 	By:
	 	/s/ MarLu Hiller
	 

	 	 	 	 
	 

	 	 	 	MarLu Hiller, Vice President – Treasurer

[First Amendment to Combined Credit Agreements]

S-1

 

	 	 	 	 	 
	 	 	AGENTS AND COMBINED LENDERS
	 
	 	 	JPMORGAN CHASE BANK, N.A., as Global
 Administrative
Agent and as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ J. Scott Fowler
	 

	 	 	 	 
	 

	 	 	 	J. Scott Fowler
	 

	 	 	 	Senior Vice President

[First Amendment to Combined Credit Agreements]

S-2

 

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

	 	By:
	 	/s/ J. Scott Fowler
	 

	 	 	 	 
	 

	 	Name:
	 	J. Scott Fowler
	 

	 	Title:
	 	Senior Vice President

[First Amendment to Combined Credit Agreements]

S-3

 

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

	 	By:
	 	/s/ Ronald E. McKaig
	 

	 	 	 	 
	 

	 	Name:
	 	Ronald E. McKaig
	 

	 	Title:
	 	Senior Vice President

[First Amendment to Combined Credit Agreements]

S-4

 

	 	 	 	 	 
	 	 	BNP PARIBAS, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Russell Otts
	 

	 	 	 	 
	 

	 	Name:
	 	Russell Otts
	 

	 	Title:
	 	Vice President
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Brian M. Malone
	 

	 	 	 	 
	 

	 	Name:
	 	Brian M. Malone
	 

	 	Title:
	 	Managing Director

[First Amendment to Combined Credit Agreements]

S-5

 

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

	 	By:
	 	/s/ Dierdre Sanborn  
	 

	 	 	 	 
	 

	 	Name:
	 	Dierdre Sanborn
	 

	 	Title:
	 	Director
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Ilene Fowler
	 

	 	 	 	 
	 

	 	Name:
	 	Ilene Fowler
	 

	 	Title:
	 	Director

[First Amendment to Combined Credit Agreements]

S-6

 

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

	 	By:
	 	/s/ David G. Mills
	 

	 	 	 	 
	 

	 	Name:
	 	David G. Mills
	 

	 	Title:
	 	Director

[First Amendment to Combined Credit Agreements]

S-7

 

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

	 	By:
	 	/s/ Dusan Lazarov
	 

	 	 	 	 
	 

	 	Name:
	 	Dusan Lazarov
	 

	 	Title:
	 	Vice President
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Omayra Laucella
	 

	 	 	 	 
	 

	 	Name:
	 	Omayra Laucella
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-8

 

	 	 	 	 	 
	 	 	BMO CAPITAL MARKETS FINANCING,
 INC., as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ James V. Ducote
	 

	 	 	 	 
	 

	 	Name:
	 	James V. Ducote
	 

	 	Title:
	 	Director

[First Amendment to Combined Credit Agreements]

S-9

 

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

	 	By:
	 	/s/ Lucy Walker
	 

	 	 	 	 
	 

	 	Name:
	 	Lucy Walker
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-10

 

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

	 	By:
	 	/s/ Sharada Manne
	 

	 	 	 	 
	 

	 	Name:
	 	Sharada Manne
	 

	 	Title:
	 	Vice President
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Tom Byargeon
	 

	 	 	 	 
	 

	 	Name:
	 	Tom Byargeon
	 

	 	Title:
	 	Managing Director

[First Amendment to Combined Credit Agreements]

S-11

 

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

	 	By:
	 	/s/ David E. Hunt
	 

	 	 	 	 
	 

	 	Name:
	 	David E. Hunt
	 

	 	Title:
	 	Attorney-in-Fact

[First Amendment to Combined Credit Agreements]

S-12

 

	 	 	 	 	 
	 	 	SOCIÉTÉ GÉNÉRALE, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Stephen W. Warfel
	 

	 	 	 	 
	 

	 	Name:
	 	Stephen W. Warfel
	 

	 	Title:
	 	Managing Director

[First Amendment to Combined Credit Agreements]

S-13

 

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

	 	By:
	 	/s/ Alison Fuqua
	 

	 	 	 	 
	 

	 	Name:
	 	Alison Fuqua
	 

	 	Title:
	 	Assistant Vice President

[First Amendment to Combined Credit Agreements]

S-14

 

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

	 	By:
	 	/s/ David C. Brooks
	 

	 	 	 	 
	 

	 	Name:
	 	David C. Brooks
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-15

 

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

	 	By:
	 	/s/ Debbi L. Brito
	 

	 	 	 	 
	 

	 	Name:
	 	Debbi L. Brito
	 

	 	Title:
	 	Authorized Signatory

[First Amendment to Combined Credit Agreements]

S-16

 

	 	 	 	 	 
	 	 	COMERICA BANK, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Peter L. Sefzik
	 

	 	 	 	 
	 

	 	Name:
	 	Peter L. Sefzik
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-17

 

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

	 	By:
	 	/s/ Daria M. Mahoney
	 

	 	 	 	 
	 

	 	Name:
	 	Daria M. Mahoney
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-18

 

	 	 	 	 	 
	 	 	CIBC INC., as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Dominic J. Sorresso
	 

	 	 	 	 
	 

	 	Name:
	 	Dominic J. Sorresso
	 

	 	Title:
	 	Executive Director
	 
	 	 	 	 
	 	 	CIBC World Market Corp.
	 	 	Authorized Signatory

[First Amendment to Combined Credit Agreements]

S-19

 

	 	 	 	 	 
	 	 	COMPASS BANK, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Adrianne D. Griffin
	 

	 	 	 	 
	 

	 	Name:
	 	Adrianne D. Griffin
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-20

 

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

	 	By:
	 	/s/ Vanessa Gomez
	 

	 	 	 	 
	 

	 	Name:
	 	Vanessa Gomez
	 

	 	Title:
	 	Director
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Morenikeji Ajayi
	 

	 	 	 	 
	 

	 	Name:
	 	Morenikeji Ajayi
	 

	 	Title:
	 	Associate

[First Amendment to Combined Credit Agreements]

S-21

 

	 	 	 	 	 
	 	 	STERLING BANK, as a U.S. Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Melissa Bauman
	 

	 	 	 	 
	 

	 	Name:
	 	Melissa Bauman
	 

	 	Title:
	 	Senior Vice President

[First Amendment to Combined Credit Agreements]

S-22

 

	 	 	 	 	 
	 	 	BNP PARIBAS (CANADA), as a Canadian
 Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Allan Fordyce
	 

	 	 	 	 
	 

	 	Name:
	 	Allan Fordyce
	 

	 	Title:
	 	Director
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Krista McLeod
	 

	 	 	 	 
	 

	 	Name:
	 	Krista McLeod
	 

	 	Title:
	 	Assistant Vice President

[First Amendment to Combined Credit Agreements]

S-23

 

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

	 	By:
	 	/s/ Medina Sales de Andrade
	 

	 	 	 	 
	 

	 	Name:
	 	Medina Sales de Andrade
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-24

 

	 	 	 	 	 
	 	 	THE BANK OF NOVA SCOTIA, as a Canadian
 Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Andrew Kellock
	 

	 	 	 	 
	 

	 	Name:
	 	Andrew Kellock
	 

	 	Title:
	 	Director
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Todd Kennedy
	 

	 	 	 	 
	 

	 	Name:
	 	Todd Kennedy
	 

	 	Title:
	 	Associate

[First Amendment to Combined Credit Agreements]

S-25

 

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

	 	By:
	 	/s/ Peter Boogers
	 

	 	 	 	 
	 

	 	Name:
	 	Peter Boogers
	 

	 	Title:
	 	Director
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Doug Clark
	 

	 	 	 	 
	 

	 	Name:
	 	Doug Clark
	 

	 	Title:
	 	Director

[First Amendment to Combined Credit Agreements]

S-26

 

	 	 	 	 	 
	 	 	DEUTSCHE BANK AG CANADA BRANCH, as
 a Canadian Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Robert A. Johnston
	 

	 	 	 	 
	 

	 	Name:
	 	Robert A. Johnston
	 

	 	Title:
	 	Vice President
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Paul Jurist
	 

	 	 	 	 
	 

	 	Name:
	 	Paul Jurist
	 

	 	Title:
	 	Chief Country Officer

[First Amendment to Combined Credit Agreements]

S-27

 

	 	 	 	 	 
	 	 	BANK OF MONTREAL, as a Canadian Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ James V. Ducote
	 

	 	 	 	 
	 

	 	Name:
	 	James V. Ducote
	 

	 	Title:
	 	Director

[First Amendment to Combined Credit Agreements]

S-28

 

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

	 	By:
	 	/s/ Niyousha Zarinpour
	 

	 	 	 	 
	 

	 	Name:
	 	Niyousha Zarinpour
	 

	 	Title:
	 	Authorized Signer

[First Amendment to Combined Credit Agreements]

S-29

 

	 	 	 	 	 
	 	 	SOCIÉTÉ GÉNÉRALE (CANADA BRANCH),
 as a Canadian
Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ David BALDONI
	 

	 	 	 	 
	 

	 	Name:
	 	David BALDONI
	 

	 	Title:
	 	Managing Director
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Paul PRIMAVESI
	 

	 	 	 	 
	 

	 	Name:
	 	Paul PRIMAVESI
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-30

 

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

	 	By:
	 	/s/ Phil Taylor
	 

	 	 	 	 
	 

	 	Name:
	 	Phil Taylor
	 

	 	Title:
	 	Senior Vice President

[First Amendment to Combined Credit Agreements]

S-31

 

	 	 	 	 	 
	 	 	WELLS FARGO FINANCIAL
 CORPORATION CANADA, as a
Canadian Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Steve Malone
	 

	 	 	 	 
	 

	 	Name:
	 	Steve Malone
	 

	 	Title:
	 	Vice President

[First Amendment to Combined Credit Agreements]

S-32

 

	 	 	 	 	 
	 	 	TORONTO DOMINION BANK, as a Canadian
 Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Debbi L. Brito
	 

	 	 	 	 
	 

	 	Name:
	 	Debbi L. Brito
	 

	 	Title:
	 	Authorized Signatory

[First Amendment to Combined Credit Agreements]

S-33

 

	 	 	 	 	 
	 	 	COMERICA BANK, CANADA BRANCH, as a
 Canadian Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Omer Ahmed
	 

	 	 	 	 
	 

	 	Name:
	 	Omer Ahmed
	 

	 	Title:
	 	Portfolio Manager

[First Amendment to Combined Credit Agreements]

S-34

 

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

	 	By:
	 	/s/ Kevin Jephcott
	 

	 	 	 	 
	 

	 	Name:
	 	Kevin Jephcott
	 

	 	Title:
	 	Principal Officer

[First Amendment to Combined Credit Agreements]

S-35

 

	 	 	 	 	 
	 	 	CANADIAN IMPERIAL BANK OF
 COMMERCE, as a Canadian
Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Randy Geislinger
	 

	 	 	 	 
	 

	 	Name:
	 	Randy Geislinger
	 

	 	Title:
	 	Executive Director
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Chris Perks
	 

	 	 	 	 
	 

	 	Name:
	 	Chris Perks
	 

	 	Title:
	 	Executive Director

[First Amendment to Combined Credit Agreements]

S-36

 

	 	 	 	 	 
	 	 	CREDIT SUISSE, TORONTO BRANCH, as a
 Canadian Lender
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Alain Daoust
	 

	 	 	 	 
	 

	 	Name:
	 	Alain Daoust
	 

	 	Title:
	 	Director
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Bruce F. Wetherly
	 

	 	 	 	 
	 

	 	Name:
	 	Bruce F. Wetherly
	 

	 	Title:
	 	Director,

CREDIT SUISSE, TORONTO BRANCH

[First Amendment to Combined Credit Agreements]

S-37exv10w31

Exhibit 10.31

SECOND AMENDMENT TO COMBINED CREDIT AGREEMENTS

          THIS SECOND AMENDMENT TO COMBINED CREDIT AGREEMENTS, dated as of May 8, 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 “Applicable Margin” contained in Section 1.1 of the U.S. Credit
Agreement is hereby amended in its entirety to read as follows:

          “Applicable Margin” means, for any day and with respect to any
Eurodollar Loans, any ABR Loans, any Specified Rate Swingline Loans or any
Commitment Fees payable hereunder, as the case may be, the applicable percentage
rate per annum set forth below under the caption “Eurodollar Loans”, “ABR Loans”,
“Specified Rate Swingline Loans” or “Commitment Fees”, as the case may be, based on
the Global Borrowing Base Utilization on such date.

1

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	Global Borrowing

Base Utilization:	 	 	Eurodollar	 	 	ABR
Loans
(in basis points)	 	 	Specified Rate	 	 	Commitment Fees
(in basis points)
	 
	 	 	 	Loans	 	 	 	 	Swingline Loans	 	 	 
	 	 	 	(in basis points)	 	 	 	 	(in basis points)	 	 	 
	 	Less than 50%
	 	 	 	112.5	 	 	 	 	0	 	 	 	 	112.5	 	 	 	 	25.0	 	 
	 	50% or greater and

less than 75%
	 	 	 	137.5	 	 	 	 	0	 	 	 	 	137.5	 	 	 	 	30.0	 	 
	 	75% or greater and

less than 90%
	 	 	 	162.5	 	 	 	 	0	 	 	 	 	162.5	 	 	 	 	35.0	 	 
	 	90% or greater
	 	 	 	187.5	 	 	 	 	0	 	 	 	 	187.5	 	 	 	 	37.5	 	 
	 

For purposes of the foregoing, any change in the Applicable Margin will occur
automatically without prior notice upon any change in the Global Borrowing Base
Utilization. Each change in the Applicable Margin shall apply during the period
commencing on the effective date of such change and ending on the date immediately
preceding the effective date of the next such change.

          B.     The definition of “Redetermination Date” contained in Section 1.1 of the U.S.
Credit Agreement is hereby amended in its entirety to read as follows:

          “Redetermination Date” means (a) with respect to any Scheduled
Redetermination, each May 1 (or a date shortly thereafter as agreed upon between the
Borrower and the Global Administrative Agent), commencing May 1, 2008, (b) with
respect to any redetermination of the Global Borrowing Base or U.S. Borrowing Base
pursuant to Section 2.8(e), the first day of the first month which is not
less than twenty (20) Business Days following the date of a request for a
redetermination pursuant to Section 2.8(e), and (c) with respect to the
Interim Redetermination (as defined in the Second Amendment to Combined Credit
Agreements dated as of May 8, 2008 by and among the Borrower, the Canadian Borrower,
the Combined Lenders, the Global Administrative Agent and the Canadian
Administrative Agent), November 1, 2008 (or a date shortly thereafter as agreed upon
between the Borrower and the Global Administrative Agent).

          C.     Section 1.5 of the U.S. Credit Agreement is hereby amended in its entirety to read as
follows:

          “SECTION 1.5 Designation of Material Subsidiaries. The Borrower shall
from time to time, by notice in writing to the Global Administrative Agent and the
Lenders, be entitled to designate that either (a) a Subsidiary which is not a
Material Subsidiary become a Material Subsidiary (in which event the Borrower will
comply (or cause compliance) with the provisions of Section 5.15 with
respect to such Subsidiary), or (b) a Material Subsidiary which has previously been
designated in writing by the Borrower as a Material Subsidiary (and is not otherwise
a Material Subsidiary pursuant to clauses (b)(ii) or (iii) of the
definition thereof) cease to be a Material Subsidiary; provided, that the
Borrower shall not be entitled to designate that a Material Subsidiary cease to be a
Material Subsidiary if a Default, Event of Default, Global Borrowing Base Deficiency
or U.S. Borrowing Base Deficiency has occurred and is continuing or would result
from or exist immediately after such a designation.”

2

 

          D.     Section 5.17(c) of the U.S. Credit Agreement is hereby amended by revising the second
sentence thereof in its entirety to read as follows:

          “On or before each Redetermination Date after the Closing Date and at such
other times as the Global Administrative Agent or Required Lenders shall request,
the Borrower and its Subsidiaries shall execute and deliver to Administrative Agent,
for the ratable benefit of each Lender (other than any such Lender that has notified
the Administrative Agent that it may not legally benefit from same), Mortgages in
form and substance reasonably acceptable to the Global Administrative Agent and duly
executed by the Borrower and any such Subsidiary (as applicable) together with such
other assignments, conveyances, amendments, agreements and other writings,
including, without limitation, UCC 1 financing statements as Administrative Agent
shall deem reasonably necessary or appropriate to grant, evidence and perfect the
Liens granted pursuant to the Security Documents with respect to Borrowing Base
Properties acquired by the Borrower and its Subsidiaries subsequent to the last date
on which the Borrower or any such Subsidiary was required to execute and deliver
Mortgages pursuant to Section 4.1(g), Section 5.15 or this
Section 5.17, or which, for any other reason are not the subject of valid,
enforceable, perfected first priority Liens (subject only to Permitted Encumbrances)
in favor of the Global Administrative Agent for the ratable benefit of each Lender
(other than any such Lender that has notified the Administrative Agent that it may
not legally benefit from same) covering the Required Reserve Value and the U.S.
Required Reserve Value.”

          E.     Section 7.11 of the U.S. Credit Agreement is hereby amended in its entirety to read as
follows:

          “SECTION 7.11 Hedge Transactions. The Borrower will not, nor will
the Borrower permit any other Loan Party to, enter into any new Oil and Gas Hedge
Transactions which would cause the volume of Hydrocarbons with respect to which a
settlement payment is calculated under all Oil and Gas Hedge Transactions (including
such new transactions) to which the Borrower and/or any other Loan Party is a party
as of the date such Oil and Gas Hedge Transaction is entered into to exceed (a)(i)
for the calendar year in which such new Oil and Gas Hedge Transaction is entered
into (the “Initial Measurement Period”), eighty-five percent (85%) of the
aggregate of the Borrower’s and its Subsidiaries’ anticipated production from Proved
Mineral Interests for each of oil and gas (including natural gas liquids),
calculated separately, (ii) for the calendar year immediately following the end of
the Initial Measurement Period (the “Second Measurement Period”), eighty
percent (80%) of the aggregate of the Borrower’s and its Subsidiaries’ anticipated
production from Proved Mineral Interests for each of oil and gas (including natural
gas liquids), calculated separately, (iii) for the calendar year immediately
following the end of the Second Measurement Period (the “Third Measurement
Period”), seventy-five percent (75%) of the aggregate of the Borrower’s and its
Subsidiaries’ anticipated production from Proved Mineral Interests for each of oil
and gas (including natural gas liquids), calculated separately, and (iv) for the
calendar year immediately following the

3

 

end of the Third Measurement Period and for each calendar year thereafter, one
hundred percent (100%) of the aggregate of the Borrower’s and its Subsidiaries’
anticipated production from Proved Producing Mineral Interests for each of oil and
gas (including natural gas liquids), calculated separately, plus, in each
case, (b) an amount not to exceed one hundred percent (100%) of associated royalty
owners’ oil, gas and/or natural gas liquids produced from the same wells, and which
oil, gas and/or natural gas liquids the Borrower has the authority to market and
sell, during the applicable measurement period; provided that the Borrower
will not, nor will the Borrower permit any other Loan Party to, permit its
production from Proved Producing Mineral Interests (whether or not included or
reflected in the most recent Reserve Report delivered to the Global Administrative
Agent and the Combined Lenders pursuant to Section 2.8) during the then
current month to be less than the aggregate amount of production from Proved
Producing Mineral Interests which are subject to Oil and Gas Hedge Transactions
during such month; provided further that the Borrower will not, nor will the
Borrower permit any other Loan Party to, enter into any Oil and Gas Hedge
Transaction (i) except in the ordinary course of business (and not for speculative
purposes) and (ii) with a counterparty with a rating of its senior, unsecured,
long-term indebtedness for borrowed money that is not guaranteed by any other Person
or subject to any other credit enhancement of lower than “BBB-” or “Baa3” by S&P and
Moody’s, respectively.”

          F.     Schedule 2.1 to the U.S. Credit Agreement is hereby amended by replacing Schedule 2.1 to
the U.S. Credit Agreement with Schedule 2.1 – U.S. Credit Agreement to this Amendment.

          II.     Amendments to Canadian Credit Agreement.

          A.     The definition of “Applicable Margin” contained in Section 1.1 of the Canadian
Credit Agreement is hereby amended in its entirety to read as follows:

          “Applicable Margin” means, for any day and with respect to any
Eurodollar Loans, any Canadian Prime Loans, any U.S. Prime Loans, any Bankers’
Acceptances or any Commitment Fees payable hereunder, as the case may be, the
applicable percentage rate per annum set forth below under the caption “Eurodollar
Loans”, “U.S. Prime Loans”, “Canadian Prime Loans”, “Bankers’ Acceptances Stamping
Fee” or “Commitment Fees”, as the case may be, based on the Global Borrowing Base
Utilization on such date.

4

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	Global Borrowing
Base Utilization:	 	 	Eurodollar
Loans
(in basis points)	 	 	U.S. Prime
Loans
(in basis points)	 	 	Canadian
Prime Loans
(in basis points)	 	 	Bankers’	 	 	Commitment
Fees
(in basis points)	 
	 	 	 	 	 	 	 	 	 	Acceptances	 	 	 
	 	 	 	 	 	 	 	 	 	Stamping Fee	 	 	 
	 	 	 	 	 	 	 	 	 	(in basis points)	 	 	 
	 	Less than 50%
	 	 	112.5	 	 	0	 	 	0	 	 	112.5	 	 	25.0	 
	 	50%
or greater and
 less than 75%
	 	 	137.5	 	 	0	 	 	0	 	 	137.5	 	 	30.0	 
	 	75%
or greater and
 less than 90%
	 	 	162.5	 	 	0	 	 	0	 	 	162.5	 	 	35.0	 
	 	90% or greater
	 	 	187.5	 	 	0	 	 	0	 	 	187.5	 	 	37.5	 
	 

For purposes of the foregoing, any change in the Applicable Margin will occur
automatically without prior notice upon any change in the Global Borrowing Base
Utilization. Each change in the Applicable Margin shall apply during the period
commencing on the effective date of such change and ending on the date immediately
preceding the effective date of the next such change.

          B.     Schedule 2.1 to the Canadian Credit Agreement is hereby amended by replacing Schedule 2.1
to the Canadian Credit Agreement with Schedule 2.1 – Canadian Credit Agreement to this Amendment.

          III.          Global Borrowing Base.

          A.     Subject to adjustments pursuant to Sections 2.8(d), (e), (g), and (h) of the U.S. Credit
Agreement, by execution of this Amendment, each of the Global Administrative Agent, the Combined
Lenders, the U.S. Lenders, the U.S. Borrower and the Canadian Borrower agree during the period from
the date hereof to the earlier of (i) November 1, 2008 (the “Interim Redetermination Date”)
or (ii) the date of the next redetermination of the Global Borrowing Base pursuant to the
provisions of Section 2.8 of the U.S. Credit Agreement that (a) the Global Borrowing Base shall
equal U.S.$1,000,000,000, (b) the U.S. Borrowing Base shall equal U.S.$710,000,000, (c) the
Allocated U.S. Borrowing Base shall equal U.S.$600,000,000, and (d) the Allocated Canadian
Borrowing Base shall equal U.S.$400,000,000.

          B.     Notwithstanding anything to the contrary contained in the U.S. Credit Agreement, including,
without limitation, Section 2.8 thereof, the Global Borrowing Base and the U.S. Borrowing Base
shall be redetermined at the request of the U.S. Borrower on or about the Interim Redetermination
Date pursuant to, and in accordance with, Section 2.8(e) of the U.S. Credit Agreement (the
“Interim Redetermination”). In connection with such Interim Redetermination, the U.S.
Borrower shall deliver to the Global Administrative Agent prior to October 1, 2008 a Reserve Report
dated as of June 30, 2008 and such updated engineering, production, operating and other data as the
Global Administrative Agent or any other Combined Lender may reasonably request; provided,
that, such Reserve Report may, in the discretion of the U.S. Borrower, be (i) a new Reserve Report,
(ii) the Reserve Report delivered in connection with the immediately preceding redetermination
(whether scheduled or unscheduled) of the Global Borrowing Base and the U.S. Borrowing Base, and/or
(iii) an update of such Reserve Report described in subclause (ii) above. The Supermajority
Lenders (in the case of the Global

5

 

Borrowing Base) or the U.S. Supermajority Lenders (in the case
of the U.S. Borrowing Base)
(and, in either case, with the agreement of the U.S. Borrower, such agreement in either case
to be given in its sole discretion) if such number would result in an increase in the Global
Borrowing Base or U.S. Borrowing Base or otherwise, the Required Lenders or U.S. Required Lenders,
as the case may be, shall approve and designate the new Global Borrowing Base and U.S. Borrowing
Base in accordance with the procedures and standards described in Section 2.8(b) of the U.S. Credit
Agreement and the U.S. Borrower shall provide a Borrowing Base Allocation Notice to the Global
Administrative Agent in accordance with Section 2.8(d)(iii) of the U.S. Credit Agreement;
provided that in the event that the U.S. Borrower fails to provide such Borrowing Base
Allocation Notice, the Global Borrowing Base shall be allocated between the Allocated U.S.
Borrowing Base and Allocated Canadian Borrowing Base in accordance with Section 2.8(d)(iii) of the
U.S. Credit Agreement. Upon approval or deemed approval of the Global Borrowing Base and U.S.
Borrowing Base pursuant to the Interim Redetermination, the Global Administrative shall deliver a
Global Borrowing Base Designation Notice to the U.S. Borrower and the Combined Lenders designating
the new U.S. Borrowing Base available to the U.S. Borrower and the Global Borrowing Base available
to the U.S. Borrower and the Canadian Borrower. Without limiting the foregoing, the terms and
provisions of Section 2.8 of the U.S. Credit Agreement shall apply to the Interim Redetermination
as if such redetermination was a discretionary redetermination requested by the U.S. Borrower
pursuant to Section 2.8(e) of the U.S. Credit Agreement. If a Global Borrowing Base Deficiency
occurs as a result of the Interim Redetermination, the U.S. Borrower will prepay, or cause to be
prepaid, Loans (as defined in the U.S. Credit Agreement) and Loans (as defined in the Canadian
Credit Agreement) in accordance with Section 2.11(b) of the U.S. Credit Agreement.

          C.     Each of the Global Administrative Agent, the Combined Lenders, the U.S. Lenders, the U.S.
Borrower and the Canadian Borrower agree and acknowledge that (i) the determination of the Global
Borrowing Base and U.S. Borrowing Base set forth in Section III(a) of this Amendment is a Scheduled
Redetermination of the Global Borrowing Base and the U.S. Borrowing Base pursuant to Section 2.8(b)
of the U.S. Credit Agreement and (ii) such Scheduled Redetermination of the Global Borrowing Base
and the U.S. Borrowing Base shall not be considered as a request for a “discretionary
determination” of the Global Borrowing Base and the U.S. Borrowing Base by the Borrower, the Global
Administrative Agent or the Required Lenders for the purposes of Section 2.8(e) of the U.S. Credit
Agreement.

          D.     In accordance with Section 2.1(c) of each of the U.S. Credit Agreement and the Canadian
Credit Agreement, the Global Administrative Agent hereby notifies the Canadian Administrative
Agent, the Combined Lenders, the U.S. Borrower and the Canadian Borrower of the reallocation of the
Global Commitments under the Combined Credit Agreements as set forth and described on
Schedule 2.1 — U.S. Credit Agreement and Schedule 2.1 — Canadian Credit Agreement attached hereto.

          IV.     Rearrangement of Existing Loans. Upon the effectiveness of this Amendment:

          A.     All of the Combined Commitments and outstanding Combined Obligations under the Combined
Credit Agreements as of the date of such effectiveness shall hereby be restructured, rearranged,
renewed, extended and continued under the applicable Combined Credit Agreement (as amended hereby)
and all Combined Loans and Letters of Credit outstanding

6

 

under the applicable Combined Credit
Agreement as of the date of such effectiveness shall
hereby become Combined Loans and Letters of Credit outstanding under the applicable Combined
Credit Agreement (as amended hereby).

          B.     In connection herewith, the Combined Lenders party to the Combined Credit Agreements prior
to the effectiveness of this Amendment (the “Existing Lenders”) hereby sell, assign,
transfer and convey, and the Combined Lenders hereby purchase and accept, so much of the aggregate
Combined Commitments under, Combined Loans outstanding under, and participations in Letters of
Credit issued pursuant to, the Combined Credit Agreements such that the Combined Commitment of each
Combined Lender shall be as set forth on Schedule 2.1 to each of the Combined Credit Agreements (as
amended hereby). The foregoing assignments, transfers and conveyances are without recourse to the
Existing Lenders and without any warranties whatsoever by any Agent, any Issuing Bank or any
Existing Lender as to title, enforceability, collectibility, documentation or freedom from liens or
encumbrances, in whole or in part, other than the warranty of each Existing Lender that it has not
previously sold, transferred, conveyed or encumbered such interests.

          V.     Effectiveness. This Amendment shall become effective as of the date (the
“Effective Date”) when the Global Administrative Agent shall have received:

          A.     Counterparts hereof duly executed by the U.S. Borrower, the Canadian Borrower, the Global
Administrative Agent, the Canadian Administrative Agent and the Combined 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).

          B.     To the extent required pursuant to Section 5.17(c) of the U.S. Credit Agreement after
giving effect to the establishment of the Global Borrowing Base and the U.S. Borrowing Base
pursuant to Article III.A. hereof, Mortgages duly executed by the U.S. Borrower and/or any of its
Subsidiaries (as applicable), together with such other agreements and documents as required by the
terms of Section 5.17(c) and Section 5.17(d) of the U.S. Credit Agreement.

          C.     An amendment fee for the account of each Combined Lender which is increasing their Combined
Commitment in the manner and amount agreed upon between U.S. Borrower and the Global Administrative
Agent in that certain fee letter dated April 16, 2008 and such other fees otherwise agreed to in
writing by the U.S. Borrower.

          VI.     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

7

 

Required Lenders, the Majority Lenders, the U.S. Lenders or the U.S. Required Lenders,
as applicable).

          (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

8

 

Adverse Effect. The U.S. Borrower is in compliance with the financial covenants set
forth in Article VI of the U.S. Credit Agreement.

               (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.

          VII.     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.

          VIII.     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.

          IX.     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.

          X.     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.

          XI.     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.

          XII.     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.

9

 

          XIII.          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
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).

          XIV.          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.

          XV.          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]

10

 

          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
 	 
	 	 	     MarLu Hiller, Vice President – Treasurer	 
	 
	 	CANADIAN BORROWER

QUICKSILVER RESOURCES CANADA INC.,

an Alberta, Canada corporation, as Canadian Borrower

 	 
	 	By: 	
/s/ MarLu Hiller
 	 
	 	 	     MarLu Hiller,  Vice President – Treasurer 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	AGENTS AND COMBINED LENDERS

JPMORGAN CHASE BANK, N.A., as Global Administrative
Agent and as a U.S. Lender

 	 
	 	By: 	
/s/ J. Scott Fowler 
 	 
	 	 	     J. Scott Fowler 	 
	 	 	     Senior Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	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 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Ronald E. McKaig 
 	 
	 	Name: 	 	Ronald E. McKaig 	 
	 	Title: 	 	Senior Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	BNP PARIBAS, as a U.S. Lender

 	 
	 	By: 	
/s/ Russell Otts 
 	 
	 	Name: 	 	Russell Otts 	 
	 	Title: 	 	Director 	 
	 
	 	
 	 
	 	By: 	
 /s/ Robert Long 
 	 
	 	Name: 	 	Robert Long 	 
	 	Title: 	 	Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ David Montgomery 
 	 
	 	Name: 	 	David Montgomery 	 
	 	Title: 	 	Director 	 
	 
	 	
 	 
	 	By: 	
/s/ Darrell Holley 
 	 
	 	Name: 	 	Darrell Holley 	 
	 	Title: 	 	Managing Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ David Mills 
 	 
	 	Name: 	 	David Mills 	 
	 	Title: 	 	Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Dusan Lazarov 
 	 
	 	Name: 	 	Dusan Lazarov 	 
	 	Title: 	 	Vice President 	 
	 
	 	
 	 
	 	By: 	
/s/ Erin Morrissey 
 	 
	 	Name: 	 	Erin Morrissey 	 
	 	Title: 	 	Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Lucy Walker 
 	 
	 	Name: 	 	Lucy Walker 	 
	 	Title: 	 	Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Sharada Manne 	 
	 	Name: 	 	Sharada Manne 	 
	 	Title: 	 	Director 	 
	 
	 	
 	 
	 	By: 	
/s/ Michael D. Willis 
 	 
	 	Name: 	 	Michael D. Willis 	 
	 	Title: 	 	Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ David E. Hunt 
 	 
	 	Name: 	 	David E. Hunt 	 
	 	Title: 	 	Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Alison Fuqua 
 	 
	 	Name: 	 	Alison Fuqua 	 
	 	Title: 	 	Assistant Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Charles D. Kirkham 
 	 
	 	Name: 	 	Charles D. Kirkham 	 
	 	Title: 	 	Senior Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	 
 	 
	 	By: 	
/s/ Debbi L. Brito 
 	 
	 	Name: 	 	Debbi L. Brito 	 
	 	Title: 	 	Authorized Signatory 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Daria Mahoney 
 	 
	 	Name: 	 	Daria Mahoney 	 
	 	Title: 	 	Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	COMPASS BANK, as a U.S. Lender

 	 
	 	By: 	
/s/ Murray E. Brasseux 
 	 
	 	Name: 	 	Murray E. Brasseux 	 
	 	Title: 	 	Executive Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	SOCIÉTÉ GÉNÉRALE, as a U.S. Lender

 	 
	 	By: 	
/s/ Stephen W. Warfel 
 	 
	 	Name: 	 	Stephen W. Warfel 	 
	 	Title: 	 	Managing Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	COMERICA BANK, as a U.S. Lender

 	 
	 	By: 	
/s/ Rebecca L. Wilson 
 	 
	 	Name: 	 	Rebecca L. Wilson 	 
	 	Title: 	 	Assistant Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	STERLING BANK, as a U.S. Lender

 	 
	 	By: 	
/s/ Melissa A. Bauman 
 	 
	 	Name: 	 	Melissa A. Bauman 	 
	 	Title: 	 	Senior Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	CIBC INC., as a U.S. Lender

 	 
	 	By: 	
/s/ Dominic J. Sorresso 
 	 
	 	Name: 	 	Dominic J. Sorresso 	 
	 	Title: 	 	Executive Director	
 
	 	CIBC World Market Corp.

Authorized Signatory

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Thomas Rajan	 
	 	Name: 	 	Thomas Rajan 	 
	 	Title: 	 	Managing Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	EXPORT DEVELOPMENT CANADA, as a U.S. Lender

 	 
	 	By: 	
/s/ François Morel
 	 
	 	Name: 	 	François Morel 	 
	 	Title: 	 	Sr. Financing Manager 	 
	 
	 	
 	 
	 	By: 	
/s/ Margaret Michalski
 	 
	 	Name: 	 	Margaret Michalski 	 
	 	Title: 	 	Senior Associate 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	BARCLAYS BANK PLC, as a U.S. Lender

 	 
	 	By: 	
/s/ Joseph Gyurindak
 	 
	 	Name: 	 	Joseph Gyurindak 	 
	 	Title: 	 	Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Doreen Barr
 	 
	 	Name: 	 	Doreen Barr 	 
	 	Title: 	 	Vice President 	 
	 
	 	
 	 
	 	By: 	
/s/ Morenikeji Ajayi
 	 
	 	Name: 	 	Morenikeji Ajayi 	 
	 	Title: 	 	Associate 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Medina Sales de Andrade
 	 
	 	Name: 	 	Medina Sales de Andrade 	 
	 	Title: 	 	Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	BNP PARIBAS (CANADA), as a Canadian Lender

 	 
	 	By: 	
/s/ Christopher Rice
 	 
	 	Name: 	 	Christopher Rice 	 
	 	Title: 	 	Vice President 	 
	 
	 	
 	 
	 	By: 	
/s/ Michael Gosselin
 	 
	 	Name: 	 	Michael Gosselin 	 
	 	Title: 	 	Managing Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Doug Clark
 	 
	 	Name: 	 	Doug Clark 	 
	 	Title: 	 	Director 	 
	 
	 	
 	 
	 	By: 	
/s/ Cory Wallin
 	 
	 	Name: 	 	Cory Wallin 	 
	 	Title: 	 	Assistant Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	THE BANK OF NOVA SCOTIA, as a Canadian Lender

 	 
	 	By: 	
/s/ Andrew Kellock
 	 
	 	Name: 	 	Andrew Kellock 	 
	 	Title: 	 	Director 	 
	 
	 	
 	 
	 	By: 	
/s/ Todd Kennedy
 	 
	 	Name: 	 	Todd Kennedy 	 
	 	Title: 	 	Associate 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	DEUTSCHE BANK AG CANADA BRANCH, as a Canadian
Lender

 	 
	 	By: 	
/s/ Robert A. Johnston
 	 
	 	Name: 	 	Robert A. Johnston 	 
	 	Title: 	 	Director 	 
	 
	 	
 	 
	 	By: 	
/s/ Marcellus Leung
 	 
	 	Name: 	 	Marcellus Leung 	 
	 	Title: 	 	Assistant Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	
/s/ Niyousha Zarinpour
 	 
	 	Name: 	 	Niyousha Zarinpour 	 
	 	Title: 	 	Authorized Signer 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	UNION BANK OF CALIFORNIA, N.A., CANADA BRANCH,

as a Canadian Lender

 	 
	 	By: 	
/s/ Phil Taylor
 	 
	 	Name: 	 	Phil Taylor 	 
	 	Title: 	 	Senior Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	WELLS FARGO FINANCIAL CORPORATION CANADA,
 as a
Canadian Lender

 	 
	 	By: 	/s/ Nick Scarfo
 	 
	 	Name: 	 	Nick Scarfo 	 
	 	Title: 	 	Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	THE TORONTO-DOMINION BANK, as a Canadian Lender

 	 
	 	
 	 
	 	By: 	/s/ Debbi L. Brito

 	 
	 	Name: 	 	Debbi L. Brito 	 
	 	Title: 	 	Authorized Signatory 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

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

 	 
	 	By: 	/s/  Kevin Jephcott

 	 
	 	Name: 	 	Kevin Jephcott 	 
	 	Title: 	 	Principal Officer 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	SUMITOMO MITSUI BANKING CORPORATION OF CANADA,
as a Canadian Lender

 	 
	 	By: 	/s/ Alfred Lee

 	 
	 	Name: 	 	Alfred Lee 	 
	 	Title: 	 	Senior Vice President 	 
	 

[Signature Page]

Second 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: 	/s/ Paul PRIMAVESI
 	 
	 	Name: 	 	Paul PRIMAVESI 	 
	 	Title: 	 	Vice President 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	COMERICA BANK, CANADA BRANCH, as a Canadian
Lender

 	 
	 	By: 	/s/ Omer Ahmed

 	 
	 	Name: 	 	Omer Ahmed 	 
	 	Title: 	 	Portfolio Manager 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	CANADIAN IMPERIAL BANK OF COMMERCE, as a
Canadian Lender

 	 
	 	By: 	/s/ Randy Geislinger

 	 
	 	Name: 	 	Randy Geislinger 	 
	 	Title: 	 	Executive Director 	 
	 
	 	
 	 
	 	By: 	/s/ Chris Perks
 	 
	 	Name: 	 	Chris Perks 	 
	 	Title: 	 	Executive Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	KEYBANK, N.A., as a Canadian Lender

 	 
	 	By: 	/s/ Kevin Hays

 	 
	 	Name: 	 	Kevin Hays 	 
	 	Title: 	 	Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	BARCLAYS BANK PLC, as a Canadian Lender

 	 
	 	By: 	/s/ Joseph Gyurindak
 	 
	 	Name: 	 	Joseph Gyurindak 	 
	 	Title: 	 	Director 	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

 

 

	 	 	 	 	 
	 	CREDIT SUISSE, TORONTO BRANCH, as a Canadian
Lender

 	 
	 	By: 	/s/ Alain Daoust

 	 
	 	Name: 	 	Alain Daoust 	 
	 	Title: 	 	Director 	 
	 
	 	
 	 
	 	By: 	/s/ Bruce F. Wetherly
 	 
	 	Name: 	 	Bruce F. Wetherly 	 
	 	Title: 	 	Director,
CREDIT SUISSE, TORONTO BRANCH	 
	 

[Signature Page]

Second Amendment to Combined Credit Agreements

Quicksilver Resources Inc.

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