Document:

exv10w63

Exhibit 10.63

EXECUTION

EIGHTH AMENDMENT TO SECOND LIEN SENIOR TERM LOAN AGREEMENT

     THIS EIGHTH AMENDMENT TO SECOND LIEN SENIOR TERM LOAN AGREEMENT (this “Eighth Amendment”) is
entered into as of December 17, 2009, among QUEST CHEROKEE, LLC, a Delaware limited liability
company (the “Borrower”), QUEST ENERGY PARTNERS, L.P., a Delaware limited partnership (the “MLP”),
QUEST CHEROKEE OILFIELD SERVICE, LLC, a Delaware limited liability company (“QCOS”), STP NEWCO,
INC., an Oklahoma corporation (“STP”; STP, QCOS and MLP collectively called the “Guarantors” and
individually a “Guarantor”), ROYAL BANK OF CANADA, as Administrative Agent and Collateral Agent for
the Lenders parties to the hereinafter defined Term Loan Agreement (in such capacities, the
“Administrative Agent” and “Collateral Agent,” respectively), KEYBANK NATIONAL ASSOCIATION, as
Syndication Agent (in such capacity, the “Syndication Agent”), SOCIÉTÉ GÉNÉRALE, as Documentation
Agent (in such capacity, the “Documentation Agent”), and the undersigned Lenders comprising all the
Lenders.

     Reference is made to the Second Lien Senior Term Loan Agreement dated as of July 11, 2008
among Borrower, the Administrative Agent, the Collateral Agent, the Syndication Agent, the
Documentation Agent and the Lenders parties thereto, as amended by a First Amendment to Second Lien
Senior Term Loan Agreement dated as of October 28, 2008, a Second Amendment to Second Lien Senior
Term Loan Agreement dated as of June 30, 2009, a Third Amendment to Second Lien Senior Term Loan
Agreement dated as of September 30, 2009, a Fourth Amendment to Second Lien Senior Term Loan
Agreement dated as of October 30, 2009, a Fifth Amendment to Second Lien Senior Term Loan Agreement
dated as of November 16, 2009, a Sixth Amendment to Second Lien Senior Term Loan Agreement dated as
of November 20, 2009 and a Seventh Amendment to Second Lien Senior Term Loan Agreement dated as of
December 7, 2009 (as amended, the “Term Loan Agreement”). Unless otherwise defined in this Eighth
Amendment, capitalized terms used herein shall have the meaning set forth in the Term Loan
Agreement; all section, exhibit and schedule references herein are to sections, exhibits and
schedules in the Term Loan Agreement; and all paragraph references herein are to paragraphs in this
Eighth Amendment.

RECITALS

     A. The Borrower, Guarantors, Administrative Agent, the Syndication Agent, the Documentation
Agent and Lenders desire to enter into this Eighth Amendment.

     Accordingly, for adequate and sufficient consideration, the parties hereto agree, as follows:

     Paragraph 1. Amendments. Effective as of the Eighth Amendment Effective Date
(hereinafter defined), the Term Loan Agreement is amended as follows:

     1.4 Introductory Paragraph. The introductory paragraph of the Term Loan Agreement is
amended to read in its entirety as follows:

     “THIS SECOND LIEN SENIOR TERM LOAN AGREEMENT is entered into as of July 11,
2008, among QUEST CHEROKEE, LLC, a Delaware limited liability company (the
“Borrower”), QUEST ENERGY PARTNERS, L.P., a Delaware master limited partnership,
which after the Recombination will be a Delaware limited liability

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Cherokee Second Lien Senior
Term Loan Agreement

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company known as PostRock Energy, LLC (the “MLP”), each lender from time to
time party hereto (collectively, the “Lenders” and individually, “Lender”), ROYAL
BANK OF CANADA, as Administrative Agent and Collateral Agent, KEYBANK NATIONAL
ASSOCIATION, as Syndication Agent and SOCIéTé GéNéRALE, as Documentation Agent.”

     1.5 Definitions. Section 1.01 of the Term Loan Agreement is amended as follows:

     (a) The following definitions are amended in their entirety to read as follows:

     “Agreement means this Credit Agreement as amended by the First Amendment to
Credit Agreement, Second Amendment to Credit Agreement, Third Amendment to Credit
Agreement, Fourth Amendment to Credit Agreement, Fifth Amendment to Credit
Agreement, Sixth Amendment to Credit Agreement, Seventh Amendment to Credit
Agreement and Eighth Amendment to Credit Agreement.”

     “Applicable Rate” means, from time to time, the following percentages per annum
with the Eurodollar Rate never being less than 3.50% per annum:

	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Applicable Rate	 	 	 	 	 	 
	 	 	Eurodollar Rate	 	Base Rate	 	 	PIK Rate	 
	Time Period	 	+	 	 	+	 	 	+	 
	From First Amendment
Effective Date to
Eighth Amendment
Effective Date
	 	9.00	%	 	 	8.00	%	 	 	0.00	%
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	After Eighth
Amendment Effective
Date
	 	 	9.00	%	 	 	8.00	%	 	 	2.00	%”

     “Base Rate means for any day a fluctuating rate per annum equal to the greatest
of (a) the Federal Funds Rate plus one-half of one percent (0.5%), (b) the Prime
Rate for such day, and (c) the Eurodollar Rate for a one-month Interest Period on
such day (or if such day is not a Business Day, the immediately preceding Business
Day) plus one and one-quarter percent (1.25%); provided that, for the avoidance of
doubt, the Eurodollar Rate for any day shall be based on the rate appearing on the
Reuters BBA Libor Rates Page 3750 (or on any successor or substitute page of such
page) at approximately 11:00 a.m. (London time) on such day and shall not reflect
the minimum Eurodollar Rate included in the definition of Applicable Rate. Any
change in the Base Rate due to a change in the Prime Rate, Federal Funds Rate or the
Eurodollar Rate shall be effective automatically and without notice to Borrower or
any Lender on the effective date of such change in the Prime Rate, Federal Funds
Rate or Eurodollar Rate, respectively.”

     “Change of Control means (i) prior to the Recombination (a) Quest Parent shall
fail to own, directly or indirectly, or fail to have voting control over, at least
51% of the equity interest of the General Partner, (b) any Person, entity or group
(other than a Quest Party) acquires beneficial ownership (within the meaning of Rule
13d-3 of the Securities and Exchange Commission under the Securities Exchange Act of
1934) of 51% or more of the equity interests in the MLP, (c) the MLP shall fail to
own, directly or indirectly,

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Cherokee Second Lien Senior
Term Loan Agreement

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100% of the equity interests in the Borrower, or (d) a Parent Change of Control
shall occur; provided, however, that actions taken to effect the Recombination and
the Recombination itself shall not be deemed a Change of Control, and (ii) on and
after the Recombination (a) Post-Recombination Parent shall fail to own, directly or
indirectly, or fail to have voting control over 100% of the Voting Stock of Quest
Parent, (b) Quest Parent shall fail to own, directly or indirectly, or fail to have
voting control over 100% of the Voting Stock of MLP, (c) MLP shall fail to own,
directly or indirectly, or fail to have voting control over 100% of the Voting Stock
of Borrower or (d) a Parent Change of Control shall occur.”

     “Consolidated Interest Charges means, for any period, for the MLP and its
Subsidiaries on a consolidated basis, the excess of (I) the sum of (a) all interest,
premium payments, fees, charges and related expenses of the MLP and its Subsidiaries
in connection with Indebtedness (net of interest rate Swap Contract settlements
(including capitalized interest) and net of (i) any write-off of debt issuance costs
and (ii) prepayment premium of Indebtedness repaid in connection with the initial
public offering of the MLP’s common units in November, 2007), in each case to the
extent treated as interest in accordance with GAAP, and (b) the portion of rent
expense of the MLP and its Subsidiaries with respect to such period under Capital
Leases that is treated as interest in accordance with GAAP over (II) all interest
income for such period.”

     “General Partner means Quest Energy GP, LLC, a Delaware limited liability
company, the sole general partner of the MLP prior to the Recombination, which in
connection with the Recombination will be merged into MLP after the MLP has been
converted to a limited liability company and its general partner interest in the MLP
will be cancelled for no consideration.”

     “Guarantors means any Person, including the MLP and every present and future
Subsidiary of Borrower and the MLP, which undertakes to be liable for all or any
part of the Obligations by execution of a Guaranty, or otherwise and after the
Recombination will include Post-Recombination Parent and Quest Parent.”

     “Guaranty means a Guaranty now or hereafter made by any Guarantor in favor of
the Administrative Agent on behalf of the Lenders, including the MLP Guaranty and
any Subsidiary Guaranty, each in form and substance acceptable to the Administrative
Agent, and after the Recombination will include Post-Recombination Parent Guaranty
and Quest Parent Guaranty.”

     “Intercreditor Agreement means that certain Intercreditor Agreement dated July
11, 2008 among Royal Bank of Canada, as administrative agent and collateral agent
for the First Lien Revolving Lenders under the First Lien Credit Agreement, the
Administrative Agent, as administrative agent and collateral agent for the Lenders
party to this Agreement, Royal Bank of Canada, as collateral agent for the First
Lien Revolving Lenders and the Lenders and the Borrower, as amended and restated by
an Amended and Restated Intercreditor and Collateral Agency Agreement dated as of
June 18, 2009, among Royal Bank of Canada, as administrative agent and collateral
agent for the First Lien Revolving Lenders under the First Lien Credit Agreement,
the Administrative Agent, as administrative agent and collateral agent for the
Lenders party to this

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Cherokee Second Lien Senior
Term Loan Agreement

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Agreement, Royal Bank of Canada, as collateral agent for the First Lien
Revolving Lenders and the Lenders, the Borrower and BP Corporation North America,
Inc.”

     “Interest Payment Date means, as to any Term Loan, the last Business Day of
each month and the Maturity Date.”

     “Loan Party means each of the Borrower, each Guarantor (including the MLP but
excluding Post-Recombination Parent and Quest Parent), and each other entity that is
an Affiliate of the Borrower that executes one or more Loan Documents (other than
Post-Recombination Parent and Quest Parent).”

     “Material Agreements means the following: (a) the Omnibus Agreement, (b)
Midstream Services and Gas Dedication Agreement, (c) the Tax Sharing Agreement, (d)
the LLC Agreement, (e) the Partnership Agreement (MLP), and (f) any agreement or
agreements entered into in replacement or substitution of any of the forgoing.
“Material Agreement” means each of such Material Agreements.”

     “Material Disposition means any sale, transfer or other disposition of
Borrowing Base Oil and Gas Properties (as defined in the First Lien Agreement) or
series of related sales, transfers or other dispositions of Borrowing Base Oil and
Gas Properties that yields gross proceeds to the Borrower or any Subsidiaries in
excess of two percent (2%) of the then current Borrowing Base (as defined in the
First Lien Agreement).”

     “Maturity Date means the earliest to occur of (a) July 11, 2010 if the
Recombination does not occur by July 10, 2010, (b) March 31, 2011 if the
Recombination does occur by July 10, 2010 or (c) such earlier date as a result of
any acceleration pursuant to Section 8.02(a).”

     “Net Cash Proceeds means with respect to any Disposition, cash (including any
cash received by way of deferred payment as and when received) received by the MLP,
the Borrower or any of its Subsidiaries in connection with and as consideration
therefor, on or after the date of consummation of such transaction, after (i)
deduction of Taxes payable in connection with or as a result of such transaction,
and (ii) payment of all brokerage commissions and all other fees and expenses
related to such transaction (including, without limitation, attorneys’ fees and
closing costs incurred in connection with such transaction).”

     “Parent Change of Control means (i) prior to the Recombination, the acquisition
by any Person, or two or more Persons acting in concert, of beneficial ownership
(within the meaning of Rule 13d-3 of the Securities and Exchange Commission under
the Securities Exchange Act of 1934) of 50% or more of the outstanding shares of
Voting Stock of Quest Parent; provided, however, that a merger of Quest Parent into
another entity in which the other entity is the survivor shall not be deemed a
Parent Change of Control if Quest Parent’s stockholders of record as constituted
immediately prior to such acquisition hold more than 50% of the outstanding shares
of Voting Stock of the surviving entity; provided, however, that actions taken to
effect the Recombination and the Recombination itself shall not be deemed a Change
in Control, and (ii) on and after the Recombination, the acquisition by any Person,
or two or more Persons acting in concert, of beneficial ownership (within the
meaning of Rule 13d-3 of the Securities and

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Cherokee Second Lien Senior
Term Loan Agreement

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Exchange Commission under the Securities Exchange Act of 1934) of 50% or more
of the outstanding shares of Voting Stock of Post-Recombination Parent; provided,
however, that a merger of Post-Recombination Parent into another entity in which the
other entity is the survivor shall not be deemed a Parent Change of Control if
Post-Recombination Parent’s stockholders of record as constituted immediately prior
to such acquisition hold more than 50% of the outstanding shares of Voting Stock of
the surviving entity; provided further, however, that in no event will the issuance
of new equity by the Post-Recombination Parent result in a Parent Change of
Control.”

     “Quest Parent means Quest Resource Corporation, a Nevada corporation, which
after the Recombination will be known as PostRock Resource Corporation.”

     “Quest Parent Credit Facility means that certain Second Amended and Restated
Credit Agreement dated as of September 11, 2009 among Quest Parent, as borrower,
Royal Bank of Canada, as administrative agent and collateral agent, and Royal Bank
of Canada, as lender, as amended from time to time.”

     “Quest Party means Quest Parent or any Subsidiary of Quest Parent, other than
the General Partner, the MLP and its subsidiaries and the Borrower and its
Subsidiaries and after the Recombination shall also mean Post-Recombination Parent
or any Subsidiary of Post-Recombination Parent, other than the MLP and its
subsidiaries and the Borrower and its Subsidiaries.”

     “Reserve Report means a report prepared by an internal petroleum engineer of
the Borrower regarding the Proved Reserves attributable to the Oil and Gas
Properties, using the criteria and parameters required by and acceptable to the
Society of Petroleum Engineers and incorporating the present cost of appropriate
plugging and abandonment obligations to be incurred in the future, taking into
account any plugging and abandonment fund required to be accrued or established by
Borrower out of cash flow from the Oil and Gas Properties covered by such report
with respect to such future obligations.”

     (b) The following definitions are inserted alphabetically into Section 1.01 of the Term Loan
Agreement:

     “Allocated G&A Expense means, for any particular period, the MLP’s Allocation
Percentage of Post-Recombination Parent’s reasonable general and administrative
expenses.”

     “Allocation Percentage means for each of MLP, QMLP and Quest Parent, a fraction
(expressed as a percentage, carried out to the second decimal place), the numerator
of which is such Person’s reasonable allocated general and administrative expenses
(with the method of allocation to be established as set forth on Exhibit E and to be
reasonably acceptable to the Lenders) (which expenses will be allocated to such
Person in a manner consistent with MLP’s, QMLP’s and Quest Parent’s current
practices) and the denominator of which is the sum of all reasonable allocated
general and administrative expenses for each of MLP, QMLP and Quest Parent.”

     “Bluestem means Bluestem Pipeline, LLC, a Delaware limited liability company.

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Cherokee Second Lien Senior
Term Loan Agreement

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     “Basis Points or “bps” means for one Basis Point, 1/100th of 1%.”

     “Capital Expenditure means all expenditures which, in accordance with GAAP,
would be required to be capitalized and shown on the consolidated balance sheet of
MLP, including expenditures in respect of Capital Leases, but excluding expenditures
made in connection with the replacement, substitution or restoration of assets to
the extent financed (a) from insurance proceeds (or other similar recoveries) paid
on account of the loss of or damage to the assets being replaced or restored or (b)
with awards of compensation arising from the taking by eminent domain or
condemnation of the assets being replaced.”

     “Completion CapEx means Capital Expenditures incurred or to be incurred by MLP,
Borrower or any Subsidiary to complete each of the 108 wells already drilled in the
Cherokee Basin as of the Eighth Amendment Effective Date but not completed.”

     “Excess Book Cash means an amount equal to consolidated book cash of the MLP,
Borrower and their consolidated Subsidiaries at the end of a quarter, as shown on a
balance sheet as at such quarter-end prepared in accordance with GAAP less the sum
of (i) restricted cash set aside for accrued royalty payments owing by the MLP,
Borrower and their consolidated Subsidiaries, (ii) restricted cash set aside to
secure letters of credit issued for the account of MLP, Borrower or any of their
consolidated Subsidiaries, (iii) restricted cash set aside for accrued and unpaid
taxes of the MLP, Borrower and their consolidated Subsidiaries, (iv) quarterly
estimated federal income taxes of the MLP, Borrower and their consolidated
Subsidiaries (to the extent not reflected in (iii) above), (v) restricted cash set
aside for any other amounts accrued and unpaid during the quarter just ended and
approved in writing by the Required Lenders, and (vi) and (vi) $5,000,000.”

     “Excluded Loan Party means Post-Recombination Parent and Quest Parent.”

     “Eighth Amendment Effective Date means December 17, 2009.”

     “Eighth Amendment to Credit Agreement means that certain Eighth Amendment to
Second Lien Senior Term Loan Agreement dated as of December 17, 2009, among the
Borrower, Guarantors, Royal Bank of Canada, as Administrative Agent, Collateral
Agent and as a Lender, KeyBank National Association, as Syndication Agent and as a
Lender, Société Générale, as Documentation Agent and as a Lender, and the Lenders
party thereto.”

     “First Lien Term Loans” means the revolving loans under the First Lien Credit
Agreement which were converted to term loans pursuant to an amendment to the First
Lien Credit Agreement.

     “Maintenance CapEx means Capital Expenditures by MLP, Borrower or any
Subsidiary (i) necessary to maintain current or currently expected production
volumes from wells currently producing and the 108 wells to be completed in
connection with the Well Completion Undertaking, (ii) to extend or renew Hydrocarbon
leases for Oil and Gas Properties that are expiring or have expired, and (iii) to
drill wells to maintain

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

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Hydrocarbon leases for Oil & Gas Properties that would terminate if a well were
not drilled.”

     “Midstream Services and Dedication Agreement means that certain Midstream
Services and Gas Dedication Agreement dated as of December 22, 2006 among Bluestem
and Quest Parent, as amended.”

     “PIK Interest means interest that accrues at the PIK Rate and is payable on
each Interest Payment Date on each Term Loan that, prior to repayment in full of the
First Lien Term Loans and other Obligations (other than contingent indemnity
obligations and indebtedness or obligations in connection with Lender Hedging
Agreements (as defined in the First Lien Credit Agreement)) the Borrower is
obligated to pay via a “payment-in-kind” or PIK Loan made by Lenders to Borrower
and, after the repayment in full of the First Lien Term Loans and other Obligations,
the Borrower may elect to pay in cash or pay via a PIK Loan, which PIK Loan shall be
added to the outstanding principal balance of each Lender’s Term Loan, and shall
thereafter accrue interest thereon at a rate equal to the rate payable on such Loan
from time to time as provided herein, but in no event to exceed the Maximum Rate.”

     “PIK Loan means the additional “payment-in-kind” loan advance made by Lenders
to Borrower automatically in the event Borrower does not pay in cash accrued
interest payable on the Term Loan on any Interest Payment Date, which PIK Loan shall
be added to the outstanding principal balance of each Lender’s Term Loan, and shall
thereafter accrue interest thereon at a rate equal to the rate payable on the Term
Loan from time to time as provided herein, but in no event to exceed the Maximum
Rate.”

     “PIK Rate means a per annum rate of interest equal to two percent (2%) but in
no event to exceed the Maximum Amount.

     “Post-Recombination Parent means PostRock Energy Corporation, a Delaware
corporation, formerly known as New Quest Holdings Corp., which will be the sole
shareholder of Quest Parent after the Recombination.”

     “Post-Recombination Parent Guaranty means a Guaranty made by Post-Recombination
Parent in favor of the Administrative Agent on behalf of the Lenders, in form and
substance acceptable to the Administrative Agent, guaranteeing repayment of the
Obligations, which Guaranty will be secondary, junior and subordinate to
Post-Recombination Parent’s pari passu guarantee of (i) all “Obligations” (as
defined in the First Lien Credit Agreement) and (ii) all “Obligations” (as defined
in the QMLP Credit Agreement).”

     “Prime Rate means for any day, the rate of interest in effect for such day as
publicly announced from time to time by the Administrative Agent as its “prime
rate.” Such rate is a rate set by the Administrative Agent based upon various
factors including the Administrative Agent’s costs and desired return, general
economic conditions and other factors, and is used as a reference point for pricing
some loans, which may be priced at, above, or below such announced rate.”

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Cherokee Second Lien Senior
Term Loan Agreement

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     “QMLP means Quest Midstream Partners, L.P., a Delaware limited partnership,
which as part of the Recombination will be merged into Quest Midstream Acquisition,
LLC, a Delaware limited liability company that will be renamed PostRock Midstream,
LLC.”

     “QMLP Credit Agreement means that certain Amended and Restated Credit Agreement
dated as of November 1, 2007 among QMLP and Bluestem, as borrowers, Royal Bank of
Canada, as administrative agent and collateral agent and the lenders party thereto,
as amended from time to time.”

     “QMLPGP means Quest Midstream GP, LLC, a Delaware limited liability company,
and the sole general partner of QMLP prior to the Recombination and pursuant to the
Recombination Agreement will be merged into Quest Midstream Acquisition, LLC.”

     “Quest Parent Guaranty means a Guaranty made by Quest Parent in favor of the
Administrative Agent on behalf of the Lenders, in form and substance acceptable to
the Administrative Agent, guaranteeing repayment of the Obligations, which Guaranty
will be secondary, junior and subordinate to Quest Parent’s pari passu guarantee of
(i) all “Obligations” (as defined in the First Lien Credit Agreement) and (ii) all
“Obligations” (as defined in the QMLP Credit Agreement).”

     “Recombination means the transactions specified in the Recombination Agreement,
pursuant to which the equity owners of Quest Parent, the MLP and QMLP will exchange
their equity in such entities for equity in PostRock Energy Corporation, a Delaware
corporation, formerly known as New Quest Holdings Corp., a new holding company,
which upon the closing of the Recombination will own, directly or indirectly, 100%
of the equity in Quest Parent, the MLP and QMLP.”

     “Recombination Agreement means that certain Agreement and Plan of Merger, dated
as of July 2, 2009, among PostRock Energy Corporation, a Delaware corporation
(formerly known as New Quest Holdings Corp.), Quest Parent, QMLP, MLP, QMLPGP, the
General Partner, Quest Resource Acquisition Corp., Quest Energy Acquisition, LLC,
Quest Midstream Holdings Corp. and Quest Midstream Acquisition, LLC, as the same may
be amended, modified or waived from time to time in accordance with Section 7.14,
pursuant to which the Recombination will be consummated.”

     “Tax Sharing Agreement means that certain tax sharing agreement involving MLP,
Borrower or any of their Subsidiaries and any one or more of Post-Recombination
Parent, Quest Parent and/or QMLP and providing for an agreement among the parties
relating to the allocation of, and payment of, federal income (and state income,
franchise and severance) taxes.”

     “Transfer Payments means (i) prior to the Recombination, any payment to
Borrower, MLP, any Subsidiary, Quest Parent or any combination of the foregoing, and
(ii) after the Recombination, any payment to Borrower, MLP, any Subsidiary, Quest
Parent, Post-/Recombination Parent or any combination of the foregoing.”

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Cherokee Second Lien Senior
Term Loan Agreement

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     “Well Completion Undertaking means a Well Completion Undertaking among MLP and
Borrower, on the one hand, and QMLP and Bluestem, on the other hand, to be entered
into prior to the first to occur of (i) MLP’s or Borrower’s expending any Completion
CapEx and (ii) January 31, 2010, pursuant to which the MLP and Borrower commit, on a
well-by-well basis, to complete wells in accordance with the schedule set forth
therein and QMLP and Bluestem commit, on a well-by-well basis, to hook up each well
completed so as to assure timely pipeline access for sale of gas from such well and
which Well Completion Undertaking will provide that the Lenders are third party
beneficiaries of such Well Completion Undertaking.”

     (c) The following definitions are deleted in Section 1.01 of the Term Loan Agreement and
wherever else they may appear in the Agreement or any Loan Document:

     “Quarterly Borrower Distribution”

     “Quarterly MLP Distribution”

     “Securities Offering”

     “Take Out Financing”

     “Term Loan Paydown Period”

     1.6 Section 1.05. Section 1.05 of the Term Loan Agreement is amended to read in its
entirety as follows:

     “1.05 References to Agreements, Persons and Laws; Rules of Construction.
Unless otherwise expressly provided herein, (a) references to agreements (including
the Loan Documents) and other contractual instruments shall be deemed to include all
subsequent amendments, restatements, extensions, supplements and other modifications
thereto, but only to the extent that such amendments, restatements, extensions,
supplements and other modifications are not prohibited by any Loan Document; (b)
references to any Law shall include all statutory and regulatory provisions
consolidating, amending, replacing, supplementing or interpreting such Law; and (c)
any reference herein to any Person shall be construed to include such Person’s
successors and assigns (subject to the restrictions contained in the Loan
Documents). No provision of this Agreement or any other Loan Document shall be
interpreted or construed against any Person solely because such Person or its legal
representatives drafted such provision.”

     1.7 Section 2.02(a). Section 2.02(a) of the Credit Agreement is amended by adding a
new sentence at the end thereof as follows:

“After the Eighth Amendment Effective Date, Borrower will arrange as quickly as
possible to have its Eurodollar Rate Loans be for one month periods with the last
day of each Interest Period being the last Business Day of a month, so to facilitate
the monthly payment of interest and to such end Lenders shall offer Interest Periods
of 15 days, if available, to Borrower.”

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Cherokee Second Lien Senior
Term Loan Agreement

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     1.8 Section 2.03. Section 2.03(b) of the Term Loan Agreement is amended in its
entirety to read as follows:

     “(b) Mandatory Prepayments.

     (i) From Net Cash Proceeds. All Net Cash Proceeds received by
the Borrower or any Subsidiary from any Material Disposition shall, after
repayment in full of the First Lien Term Loans and other Obligations (other
than contingent indemnity obligations and indebtedness or obligations in
connection with Lender Hedging Agreements (as defined in the First Lien
Credit Agreement)) be applied to prepay outstanding Term Loans;

     (ii) From Excess Book Cash. Until repayment in full of all
Obligations, Borrower shall, after repayment in full of the First Lien Term
Loans and other Obligations (as defined in the First Lien Credit Agreement)
(other than contingent indemnity obligations and indebtedness or obligations
in connection with Lender Hedging Agreements (as defined in the First Lien
Credit Agreement)), by the 20th Business Day following the end of
each quarter commencing with the quarter ending March 31, 2010 (i) make
quarterly prepayments of the Term Loans outstanding hereunder in an amount
equal to Excess Book Cash and (ii) deliver to the Administrative Agent, in
form and detail reasonably satisfactory to the Administrative Agent and the
Required Lenders, a calculation of Excess Book Cash as of the end of such
quarter; and

     (iii) Returned Cash Collateralization Payments. Until
repayment in full of all Obligations, Borrower shall, after repayment in
full of the First Lien Term Loans and other Obligations (as defined in the
First Lien Credit Agreement) (other than contingent indemnity obligations
and indebtedness or obligations in connection with Lender Hedging Agreements
(as defined in the First Lien Credit Agreement), cause any cash collateral
deposited or pledged by Borrower to secure letters of credit pursuant to
Section 7.01(v) that is returned to Borrower upon the expiration or
cancellation of any such letters of credit to be applied by the Borrower to
prepay outstanding Term Loans unless within 30 days of having received such
cash collateral, the Borrower uses such cash collateral to cash
collateralize a replacement letter of credit issued for the Borrower or any
of its Subsidiaries.”

     1.9 Section 2.04. Section 2.04 of the Term Loan Agreement is amended to read in its
entirety as follows:

     “2.04 Repayment of Term Loans. The unpaid principal balance of the Term Loans
will be due and payable on the Maturity Date together with all accrued and unpaid
interest and fees; provided, however, without the consent of all First Lien
Revolving Lenders, no principal payments may be made on the Term Loans until
repayment in full of the First Lien Term Loans and other Obligations (other than
contingent indemnity obligations and indebtedness or obligations in connection with
Lender Hedging Agreements (as defined in the First Lien Credit Agreement).”

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

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     1.10 Section 2.05(b). The first sentence of Section 2.05(b) of the Term Loan
Agreement is amended in its entirety to read as follows:

     “(b) If any amount payable by Borrower under any Loan Document is not paid when
due (after the expiration of any applicable grace periods or the Borrower’s ability
to elect to pay PIK Interest via PIK Loans pursuant to Section 2.05(e)), whether at
stated maturity by acceleration or otherwise, such amount shall thereafter bear
interest at a fluctuating interest rate per annum at all times equal to the Default
Rate to the fullest extent permitted by applicable Laws.”

     1.11 Section 2.05. A new Section 2.05(e) is hereby added to the Term Loan Agreement
to read as follows:

     “(e) From and after the Eighth Amendment Effective Date and until repayment in
full of the First Lien Term Loans and other Obligations (other than contingent
indemnity obligations and indebtedness or obligations in connection with Lender
Hedging Agreements (as defined in the First Lien Credit Agreement)), on each
Interest Payment Date interest accrued on the Term Loans at the PIK Rate will be
paid via a PIK Loan made by Lenders to Borrower and after the repayment in full of
the First Lien Term Loans and other Obligations, the Borrower may elect to pay in
cash or pay via a PIK Loan. If paid via a PIK Loan, the amount of such PIK Loan
shall be added to the outstanding principal balance of each Lender’s Term Loan and
evidenced by such Lender’s Term Note. Such PIK Loan shall thereafter accrue
interest thereon at a rate equal to the rate payable on the Term Loan from time to
time as provided herein, but in no event to exceed the Maximum Rate.”

     1.12 Section 206. Section 2.06 of the Term Loan Agreement is amended by designating
the current provision thereof as subsection (a) and adding a new subsection (b) thereto to read in
its entirety as follows:

     “(b) Amendment Fee. On the Eighth Amendment Effective Date, each
Lender shall have earned, in accordance with its Pro Rata Share, and the Borrower
irrevocably agrees to pay to the Lenders, subject to reduction as set forth in this
section, an amendment fee of 210 bps of the Outstanding Amount of Term Loans on the
Eighth Amendment Effective Date. The amendment fee will be fully earned and
non-refundable on the Eighth Amendment Effective Date but shall not be payable until
the Maturity Date; provided that such fee (or portion thereof not forgiven as
provided below) will be immediately due and payable upon the occurrence of an
acceleration of the maturity of the Term Loans pursuant to Section 8.02(a). The fee
will be partially forgiven in accordance with the following schedule (the entire fee
will be due and payable upon the occurrence of an acceleration of the maturity of
the Term Loans pursuant to Section 8.02(a)):

	 	 	 	 	 
	Date of Repayment in Full of Term Loans	 	Fee Forgiven	 	Fee Owed
	On or before September 30, 2010

	 	157.50 bps
	 	52.50 bps
	After September 30, 2010 and on or before
October 31, 2010
	 	131.25 bps
	 	78.75 bps

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Cherokee Second Lien Senior
Term Loan Agreement

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	Date of Repayment in Full of Term Loans	 	Fee Forgiven	 	Fee Owed
	After October 31, 2010 and on or before
November 30, 2010
	 	105.00 bps
	 	105.00 bps
	After November 30, 2010 and on or before
December 31, 2010
	 	78.75 bps
	 	131.25 bps
	After December 31, 2010 and on or before
January 31, 2011
	 	52.50 bps
	 	157.50 bps
	After January 31, 2011 and on or before
February 28, 2011
	 	26.25 bps
	 	183.75 bps
	After February 28, 2011
	 	0 bps
	 	210 bps”

     1.13 Section 6.01. Section 6.01 of the Term Loan Agreement is amended by deleting the
word “and” at the end of Section 6.01(c), deleting the period at the end of Section 6.01(d) and
replacing it with a semicolon, and adding the following new subsections thereto to read in their
entirety as follows:

     (e) Borrower shall deliver for each fiscal year an annual consolidated overhead
budget with projected allocations for each of Quest Parent, QMLP and MLP, the 2010
consolidated overhead budget to be delivered prior to the Eighth Amendment Effective
Date and the 2011 consolidated overhead budget to be delivered by December 15, 2010;

     (f) Borrower shall deliver for each fiscal year an annual capital expenditure
budget, the 2010 capital expenditure budget to be delivered prior to the Eighth
Amendment Effective Date and the 2011 capital expenditure budget to be delivered by
December 15, 2010;

     (g) quarterly, coincident with the filing of MLP’s or Post-Recombination
Parent’s Form 10K and/or Form 10Q, a report on the results of operations, including
variances from budget for Borrower;

     (h) on a monthly basis by the 10th Business Day of the succeeding
month, Borrower shall deliver cash flow forecasts for the following 13-week period;

     (i) on a monthly basis by the 10th Business Day of the succeeding
month, a report comparing actual receipts and expenditures against the most recently
delivered 13-week cash flow forecast and accompanied by an explanation of any
variances between such actual and forecasted cash flows and expenditures;

     (j) on a monthly basis by the 10th Business Day of the succeeding
month, Borrower shall deliver an updated schedule of actual total overhead and
allocation of overhead to each of Post-Recombination Parent, Quest Parent, QMLP and
MLP;

     (k) on a monthly basis by the 10th Business Day of the succeeding
month, Borrower shall deliver an updated schedule of actual Transfer Payments made
by the Borrower pursuant to Sections 7.08(a)(ii), (a)(iii), (b)(ii) and (b)(iii) for
costs and expenses, including litigation settlement payments, for the benefit of the
business or assets of MLP; and

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Cherokee Second Lien Senior
Term Loan Agreement

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     (l) on a monthly basis by the 10th Business Day of the succeeding
month, Borrower shall deliver a report comparing actual capital expenditures (both
Maintenance CapEx and Completion CapEx) against the most recently delivered annual capital
expenditure budget.”

     1.14 Section 6.02. Section 6.02 of the Term Loan Agreement is amended by deleting the
word “and” at the end of Section 6.02(c), deleting the period at the end of Section 6.02(d) and
replacing it with a semicolon and adding the following subsections (e) and (f) to read in their
entirety as follows:

     “(e) by February 28, 2011 or on such earlier date that QMLP delivers to
Borrower its calculation of the gathering rate effective for 2011; and

     (f) within 2 Business Days of the consummation of the Recombination, an
executed copy of the Tax Sharing Agreement, which shall be consistent and not
deviate in any material respect from the term sheet describing such Tax Sharing
Agreement previously distributed to the Lenders.”

     1.15 Section 6.07(a). Section 6.07(a) of the Term Loan Agreement is amended to read in
its entirety as follows:

     “(a) Maintain with responsible insurance companies insurance with respect to
its properties and business (including business interruption insurance) against such
casualties and contingencies and of such types and in such amounts as is customary
in the case of similar businesses and which is reasonably acceptable to the
Administrative Agent and will (i) furnish to the Administrative Agent on each
anniversary of the Closing Date a certificate or certificates of insurance from the
applicable insurance company evidencing the existence of insurance required to be
maintained by this Agreement and the other Loan Documents and evidencing that
Administrative Agent is listed as mortgagee on property insurance (except as to
properties owned by Quest Parent or a Subsidiary of Quest Parent (or after the
Recombination, owned by Post-Recombination Parent) (in each case, other than the MLP
and its Subsidiaries)) and the Administrative Agent and Lenders are additional
insureds on liability insurance, and (ii) upon request of the Administrative Agent,
furnish to each Lender at reasonable intervals a certificate of an Authorized
Officer of the Borrower setting forth the nature and extent of all insurance
maintained in accordance with this Section.”

     1.16 Section 6.14. Section 6.14 of the Term Loan Agreement is amended by adding the
following sentence at the end thereof as follows:

“Simultaneously with the closing of the Recombination, the Borrower will (y) cause
Post-Recombination Parent to execute and deliver to the Administrative Agent the
Post-Recombination Parent Guaranty and (z) cause Quest Parent to execute and deliver
to the Administrative Agent the Quest Parent Guaranty. Additionally,
contemporaneously with the delivery of the Post-Recombination Parent Guaranty and
Quest Parent Guaranty, Borrower will cause to be delivered to the Lenders legal
opinions, consistent with prior legal opinions rendered by counsel for the Borrower
relating to Guaranties, covering the due authorization, execution and delivery of
such Guaranties and that such Guaranties constitute legal, valid and binding
obligations of the respective Guarantor, enforceable in accordance with their terms,
subject to normal and customary qualifications.”

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

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     1.17 Section 6.15(a). Section 6.15(a) of the Term Loan Agreement is amended by adding
the following sentence at the end thereof as follows:

“In addition, within ten (10) days after the Recombination has been
consummated, the Borrower will cause Quest Parent to pledge 100% of the limited
liability company interest in the MLP (howsoever named) owned by it as Collateral to
secure the Obligations; provided, however such pledge shall be secondary, junior and
subordinate to the pledge granted to secure the Obligations (as defined in the First
Lien Credit Agreement. As of the Eighth Amendment Effective Date, Borrower shall
have caused Quest Parent to enter into an amendment to the Quest Parent Credit
Facility which will ensure that upon the Recombination the lenders under the Quest
Parent Credit Facility will release any Lien they may have on the limited liability
company interest in the MLP owned by Quest Parent so that Quest Parent may make the
pledge described in this Section.”

     1.18 Section 6.15(b). Section 6.15(b) of the Term Loan Agreement is amended in its
entirety to read as follows:

     “(b) In connection with the actions required pursuant to the foregoing
subsection (a), the Borrower and the MLP shall cause the MLP and each Subsidiary of
the Borrower and the MLP (and after the Recombination, Quest Parent) to execute and
deliver such stock certificates, blank stock powers, evidence of corporate
authorization, opinions of counsel, current valuations, evidence of title, and other
documents, and shall use commercially reasonable efforts to obtain third party
consents, as shall be reasonably requested by the Administrative Agent, in each case
in form and substance reasonably satisfactory to the Administrative Agent.”

     1.19 Section 6.21. Section 6.21 of the Term Loan Agreement is deleted in its
entirety.

     1.20 Section 7.01(u). Section 7.01(u) of the Term Loan Agreement is amended in its
entirety to read as follows:

     “(u) any Liens arising out of the refinancing, extension, renewal or refunding
of any Indebtedness secured by any Lien permitted by any clauses of this Section,
provided that such Indebtedness is not increased except for increases in an amount
equal to a reasonable premium or other reasonable amount paid, and fees and expenses
reasonably incurred, in connection with such extension, renewal, refinancing, or
replacement and in an amount equal to any existing commitments unutilized
thereunder, and is not secured by any additional assets;”

     1.21 Section 7.01(v). Section 7.01(v) of the Term Loan Agreement is amended in its
entirety to read as follows:

     “(v) Liens arising solely by virtue of cash collateralizing (i) that certain
$30,000 letter of credit issued for the account of Borrower by Bank of Oklahoma for
the benefit of the Kansas Corporation Commission, (ii) that certain $25,000 letter
of credit issued for the account of Borrower by Bank of Oklahoma for the benefit of
the Oklahoma Corporation Commission, (iii) that certain $25,000 letter of credit
issued for the account of Borrower by Comerica Bank for the benefit of the State of
West Virginia, (iv) that

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

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certain $50,000 letter of credit issued for the account of Borrower by Comerica
Bank for the benefit of the State of West Virginia, (v) that certain $200,000 letter
of credit issued for the account of Borrower by Comerica Bank for the benefit of the
State of Oklahoma, (vi) that certain $10,000 letter of credit issued for the account
of Borrower by Bank of Oklahoma for the benefit of the Texas Railroad Commission,
(vii) that certain $10,000 letter of credit issued for the account of Borrower by
Bank of Oklahoma for the benefit of the State of New Mexico, (viii) that certain
$1,000,000 letter of credit issued for the account of Borrower by Wells Fargo Bank,
N.A. for the benefit of Devon Energy Production Company and Tall Grass Services,
LLC, and (ix) up to an additional $500,000 of Liens securing additional letters of
credit issued pursuant to Section 7.04(l);”

     1.22 Section 7.02(d). Section 7.02(d) of the Term Loan Agreement is amended in its
entirety to read as follows:

     “(d) Investments by the MLP in the Borrower;”

     1.23 Section 7.02(f). Section 7.02(f) of the Term Loan Agreement is amended in its
entirety to read as follows:

     “(f) acquisitions by the Borrower or its Subsidiaries of Oil and Gas Properties
(I) funded entirely using proceeds from equity issued by the Post-Recombination
Parent; provided any such acquired Oil and Gas Properties are pledged to secure, on
a first lien basis, the Obligations (as defined in the First Lien Credit Agreement),
and on a junior, second and subordinate lien basis, the Obligations, and (II)
resulting from the re-leasing of Hydrocarbon leases of Oil and Gas Properties
previously leased by Borrower or its Subsidiaries that had expired; provided any
such re-leased Oil and Gas Properties are pledged to secure, on a first lien basis,
the Obligations (as defined in the First Lien Credit Agreement), and on a junior,
second and subordinate lien basis, the Obligations;”

     1.24 Section 7.02(k). Section 7.02(k) of the Credit Agreement is deleted in its
entirety.

     1.25 Section 7.04(e). Section 7.04(e) of the Term Loan Agreement is amended by
deleting the figure “$5,000,000” therein and substituting therefor the figure “$2,500,000”.

     1.26 Section 7.04(f). Section 7.04(f) of the Term Loan Agreement is amended by
deleting the figure “$4,000,000” therein and substituting therefor the figure “$2,000,000”.

     1.27 Section 7.04(h). Section 7.4(h) of the Term Loan Agreement is amended by
deleting the figure “$5,000,000” therein and substituting therefor the figure “$2,500,000”.

     1.28 Section 7.04(i). Section 7.4(i) of the Term Loan Agreement is amended by
deleting the figure “$5,000,000” therein and substituting therefor the figure “$2,500,000”.

     1.29 Section 7.04. Section 7.04 of the Term Loan Agreement is amended by deleting the
word “and” at the end of Section 7.04(j), adding the word “and” at the end of Section 7.04(k) and
adding the following new Section 7.04(l) immediately prior to the unnumbered clause at the end of
Section 7.04:

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

15

 

     “(l) reimbursement obligations under letters of credit issued for any Loan
Party; provided the aggregate amount of such reimbursement obligations in connection
with such letters of credit shall not exceed $1,850,000 at any time.”

     1.30 Section 7.06. Section 7.06 of the Term Loan Agreement is amended in its entirety
to read as follows:

     “7.06 Fundamental Changes. Except in connection with the Recombination and as
contemplated by the Recombination Agreement, merge, dissolve, liquidate or
consolidate with or into, or convey, transfer, lease or otherwise Dispose of
(whether in one transaction or in a series of related transactions) all or
substantially all of its assets (whether now owned or hereafter acquired) to or in
favor of any Person:”

     1.31 Section 7.07(d). Section 7.07(d) of the Term Loan Agreement is deleted in its
entirety.

     1.32 Section 7.08. Section 7.08 of the Term Loan Agreement is amended to read in its
entirety as follows:

     “7.08 Transfer Payments; Restricted Payments; Distributions and Redemptions.
(a) Prior to the closing of the Recombination, declare or make, directly or
indirectly, any Transfer Payment or Restricted Payment, or incur any obligation
(contingent or otherwise) to do so, except that:

     (i) each Subsidiary may make Transfer Payments and Restricted Payments
to the Borrower and to Wholly-Owned Subsidiaries of the Borrower,

     (ii) Borrower may make Transfer Payments to MLP and Quest Parent in
reimbursement of reasonable costs or expenses not prohibited by this
Agreement and directly incurred by MLP or Quest Parent in the ordinary
course of business consistent with historical practices for the benefit of
the business or assets of MLP, Borrower or a Subsidiary,

     (iii) Borrower may make Transfer Payments to MLP for the settlement of
litigation against MLP; provided that any such payments in excess of
$250,000 annually in the aggregate shall require the consent of the Required
Lenders,

     (iv) to the extent MLP receives Transfer Payments from Borrower for
such amounts, MLP may make Transfer Payments and Restricted Payments to
Quest Parent in reimbursement of reasonable costs or expenses not prohibited
by this Agreement and directly incurred by Quest Parent in the ordinary
course of business consistent with historical practices for the benefit of
the business or assets of MLP, Borrower or a Subsidiary,

     (v) MLP and Borrower may make Transfer Payments and Restricted Payments
in reimbursement of costs or expenses associated with overhead and corporate
expenses allocated to MLP on a reasonable basis (with the method of
allocation of overhead and corporate expenses to be established as set forth
on Exhibit E and to be reasonably acceptable to the Lenders), and

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

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     (vi) MLP may make Transfer Payments and Restricted Payments to Quest
Parent, in an amount equal to MLP’s consolidated income tax liability (with
the method of allocation of income tax obligations to be as set forth on
Exhibit F and to be reasonably acceptable to the Lenders).

     (b) After the Recombination, declare or make, directly or indirectly, any
Transfer Payment or Restricted Payment, or incur any obligation (contingent or
otherwise) to do so, except that:

     (i) each Subsidiary may make Transfer Payments and Restricted Payments
to the Borrower and to Wholly-Owned Subsidiaries of the Borrower,

     (ii) Borrower may make Transfer Payments to MLP, Quest Parent and
Post-Recombination Parent in reimbursement of reasonable costs or expenses
not prohibited by this Agreement and directly incurred by MLP, Quest Parent
or Post-Recombination Parent in the ordinary course of business consistent
with historical practices for the benefit of the business or assets of MLP,
Borrower or a Subsidiary,

     (iii) Borrower may make Transfer Payments to MLP for the settlement of
litigation against MLP; provided that any such payments in excess of
$250,000 annually in the aggregate shall require the consent of the Required
Lenders,

     (iv) to the extent MLP receives Transfer Payments from Borrower for
such amounts, MLP may make Transfer Payments and Restricted Payments to
Quest Parent and Post-Recombination Parent in reimbursement of reasonable
costs or expenses not prohibited by this Agreement and directly incurred by
Quest Parent or Post-Recombination Parent in the ordinary course of business
consistent with historical practices for the benefit of the business or
assets of MLP, Borrower or a Subsidiary,

     (v) MLP and Borrower may make Transfer Payments and Restricted Payments
in reimbursement of costs or expenses associated with overhead and corporate
expenses allocated to MLP in an amount equal to the MLP’s Allocation
Percentage of Allocated G&A, and

     (vi) MLP may make Transfer Payments and Restricted Payments to
Post-Recombination Parent in an amount equal to MLP’s consolidated income
tax liability (with the method of allocation of income tax obligations to be
as set forth on Exhibit F and to be reasonably acceptable to the Lenders).”

     1.33 Section 7.10. Section 7.10 of the Term Loan Agreement is amended to read in its
entirety as follows:

     “7.10 Nature of Business; Risk Management; Accounts Payable Practices. Engage
in any line of business other than exploration, production and marketing of
Hydrocarbons and related activities. In addition to the foregoing, the MLP may not

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

17

 

engage in any business other than the ownership of the Borrower and the
operation of the MLP. Without the written approval of the Administrative Agent,
neither the Borrower nor the MLP may materially change its risk management policy.
Neither MLP nor Borrower nor any of their Subsidiaries will alter or change their
usual and customary account payable practices other than to change the primary
payment dates to the 15th and last day of each month from the first day
and 15th day of each month.”

     1.34 Section 7.11. Section 7.11 of the Term Loan Agreement is amended to read in its
entirety as follows:

     “7.11 Transactions with Affiliates. Sell, lease or otherwise transfer any
property or assets to, or purchase, lease or otherwise acquire any property or
assets from, or otherwise engage in any other transactions with, any of its
Affiliates, except (i) transactions between or among the MLP, the Borrower and its
Wholly-Owned Subsidiaries not involving any other Affiliate, (ii) any Transfer
Payments and Restricted Payments permitted by Section 7.08, (iii) the transactions
under the agreements listed on Schedule 7.11, (iv) in the ordinary course of
business at prices and on terms and conditions not less favorable to the MLP, the
Borrower or such Subsidiary, as applicable, than could be obtained on an arm’s
length basis from unrelated third parties and that are not prohibited by this
Agreement, (v) after the Recombination, payments to Post-Recombination Parent in an
amount equal to the MLP’s Allocation Percentage of Allocated G&A, (vi) after the
Recombination, payments to Post-Recombination Parent in an amount equal to the taxes
allocated to MLP pursuant to the Tax Sharing Agreement, (vii) payments by MLP,
Borrower or any of its Subsidiaries to Bluestem pursuant to the Midstream Services
and Dedication Agreement and (viii) payments by MLP, Borrower or any of its
Subsidiaries to Quest Eastern Resource, LLC pursuant to that certain gas gathering
agreement between Borrower and Quest Eastern Resource, LLC relating to gas gathering
in the Appalachian region.”

     1.35 Section 7.14. Section 7.14 of the Term Loan Agreement is amended in its
entirety to read as follows:

     “7.14 Material Agreements. Permit any amendment of the Recombination Agreement
without the written consent of Required Lenders or, except in connection with the
Recombination and as contemplated by the Recombination Agreement as in effect on the
Fifth Amendment Effective Date or as amended with the consent of Required Lenders,
permit (a) any amendment to any Borrower Organization Document or any Material
Agreement, if such amendment could reasonably be expected to (y) have a Material
Adverse Effect on the ability of the Borrower or any Guarantor to perform its
obligations under the Loan Documents to which it is a party or (z) otherwise
materially adversely affect the Lenders, or (b) any assignment of any Material
Agreement if such assignment could reasonably be expected to materially adversely
affect the Lenders or have a Material Adverse Effect on the ability of the Borrower
or any other Loan Party to perform its obligations under the Loan Documents to which
it is a party.”

     1.36 Section 8.01(b). Section 8.01(b) is amended by deleting the references therein
to Sections 6.21(a) and 6.21(b)

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

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     1.37 Section 8.01(j). Section 8.01(j) of the Term Loan Agreement is amended in its
entirety to read as follows:

     “(j) Invalidity of Loan Documents. Any Loan Document, at any time
after its execution and delivery and for any reason other than the agreement of all
the Lenders or satisfaction in full of all the Obligations, ceases to be in full
force and effect, or is declared by a court of competent jurisdiction to be null and
void, invalid or unenforceable in any material respect; or any Loan Party (or after
the Recombination, any Excluded Loan Party) denies that it has any or further
liability or obligation under any Loan Document, or purports to revoke, terminate or
rescind any Loan Document; provided, however, that the foregoing shall not apply to
the Guaranty and other Collateral Documents of any Subsidiary that is Disposed of by
the Borrower in accordance with the provisions of this Agreement; or”

     1.38 Section 8.01(n). Section 8.01(n) of the Term Loan Agreement is amended in its
entirety to read as follows:

     “(n) Collateral; Impairment of Security, etc. (i) Any provision of any
Loan Document shall for any reason cease to be valid and binding on or enforceable
against a Loan Party (or after the Recombination, any Excluded Loan Party) or any
Loan Party (or after the Recombination, any Excluded Loan Party) shall so state in
writing or bring an action to limit its obligations or liabilities thereunder; or
(ii) any Collateral Document shall for any reason (other than pursuant to the terms
thereof) cease to create a valid security interest in the Collateral purported to be
covered thereby or such security interest shall for any reason (other than as
permitted herein or in any Collateral Document) cease to be a perfected and
second-priority security interest subject to Permitted Liens; provided, however,
that the foregoing shall not apply to the Guaranty and other Collateral Documents of
any Subsidiary that is Disposed of by the Borrower in accordance with the provisions
of this Agreement.”

     1.39 Exhibit E-Methodology for Determining Allocated G&A Expense. Exhibit E
(Methodology for Determining Allocated G&A Expense) attached to the Eighth Amendment is hereby made
Exhibit E to the Term Loan Agreement for all purposes.

     1.40 Exhibit F-Methodology for Determining Allocated Taxes. Exhibit F (Methodology
for Determining Allocated Taxes) attached to the Eighth Amendment is hereby made Exhibit F to the
Term Loan Agreement for all purposes.

     Paragraph 2. Effective Date. This Eighth Amendment shall not become effective until
the date (such date, the “Eighth Amendment Effective Date”) the Administrative Agent receives all
of the agreements, documents, certificates, instruments, and other items described below:

     (a) this Eighth Amendment, executed by the Borrower, the Guarantors, the Administrative Agent,
the Syndication Agent, the Documentation Agent and all the Lenders;

     (b) an executed Consent signed by the First Lien Agent (as defined in the Intercreditor
Agreement) required pursuant to Section 6.04 of the Intercreditor Agreement relating to the
increase in the interest rate contemplated by this Eighth Amendment;

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

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     (c) a shared general and administrative expense analysis;

     (d) a monthly capital expenditure budget;

     (e) fees and expenses required to be paid pursuant to Paragraph 5 of this Eighth Amendment, to
the extent invoiced prior to the Eighth Amendment Effective Date;

     (f) contemporaneous closing of the Fifth Amendment to the First Lien Credit Agreement;

     (g) contemporaneous closing of the Third Amendment to the QMLP Credit Agreement;

     (h) contemporaneous closing of the Second Amendment to the Second Amended and Restated Credit
Agreement among Quest Parent, Royal Bank of Canada, as administrative agent and collateral agent,
and Royal Bank of Canada, as lender; and

     (i) all documentation relating to the Eighth Amendment shall be satisfactory to the First Lien
Lenders, as evidenced by their execution and delivery to the Administrative Agent of a signed
signature page to this Eighth Amendment;

     (j) such other assurances, certificates, documents and consents as the Administrative Agent
may require; and

     (k) such other assurances, certificates, documents and consents as the Administrative Agent
may require.

     Paragraph 3. Acknowledgment and Ratification. The Borrower and the Guarantors each (i)
consent to the agreements in this Eighth Amendment and (ii) agree and acknowledge that the
execution, delivery, and performance of this Eighth Amendment shall in no way release, diminish,
impair, reduce, or otherwise affect the respective obligations of the Borrower or any Guarantor
under the Loan Documents to which it is a party, which Loan Documents shall remain in full force
and effect, as amended and waived hereby, and all rights thereunder are hereby ratified and
confirmed.

     Paragraph 4. Representations. The Borrower and the Guarantors each represent and
warrant to the Administrative Agent and the Lenders that as of the Eighth Amendment Effective Date
and after giving effect to the waivers and amendments set forth in this Eighth Amendment (a) all
representations and warranties in the Loan Documents are true and correct in all material respects
as though made on the date hereof, except to the extent that any of them speak to a different
specific date, and (b) no Default or Event of Default exists. Additionally, the Borrower represents
and warrants that neither the Recombination nor the Recombination Agreement will trigger any
“change of control” provision in any oil, gas or other mineral lease of any Oil and Gas Properties
owned or leased by Borrower or any of its Subsidiaries, the effect of which “change of control”
would be to terminate such lease or to deprive or dispossess Borrower or its Subsidiaries of the
mineral estate created thereby or to deny to Borrower or its Subsidiaries the right to produce oil
and gas therefrom and enjoy the benefits thereof.

     Paragraph 5. Expenses. The Borrower shall pay on demand all reasonable costs, fees,
and expenses paid or incurred incident to this Eighth Amendment and preceding amendments including,
without limitation, Attorney Costs in connection with the negotiation, preparation, delivery, and
execution of this Eighth Amendment (and such prior amendments) and any related documents, filing
and recording costs and financial advisory advice provided to one or more of the Lenders including
(i) all

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

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reasonable costs, fees, and expenses of the Administrative Agent, including fees of its legal
counsel, Thompson & Knight LLP, and its financial advisor, Zolfo Cooper LLC, (ii) all reasonable
costs, fees, and expenses of Socété Générale, including fees of its counsel, Bracewell & Giuliani,
LLP, (iii) all reasonable costs, fees, and expenses of Wachovia Bank National Association and RZB
Finance LLC and their counsel K&L Gates, LLP, (iv) all reasonable costs, fees, and expenses of
Amegy Bank National Association and its counsel, Jackson Walker, LLP, and (v) all reasonable
costs, fees, and expenses of the Lenders’ financial advisor, Capstone Advisory Group, LLC.

     The Borrower further acknowledges that it has funded $75,000 to Capstone Advisory Group, LLC,
as financial advisor to one or more Lenders. Borrower acknowledges that such payment, together
with any other payments previously made by Borrower for financial or legal advisors to any Lender,
are for work to be performed and are not maximum amounts or limits to the Borrower’s obligation to
reimburse Lenders for such costs and expenses pursuant to Section 10.04 of the Term Loan Agreement
(unless specifically so limited or capped in any written engagement agreement with such financial
or legal advisor). Borrower further acknowledges and reconfirms its obligation under Section 10.04
to pay or reimburse the Administrative Agent and each Lender for all costs and expenses incurred in
connection with the enforcement, attempted enforcement, or preservation of any rights or remedies
under the Term Loan Agreement or the other Loan Documents. Borrower agrees and acknowledges that
the foregoing costs and expenses have been and will be incurred in connection with a workout and
restructuring of the Obligations under the Term Loan Agreement. Borrower agrees that the foregoing
applies also to similar payments made by it in connection with the First Lien Credit Agreement..

     Paragraph 6. Miscellaneous. This Eighth Amendment is a “Loan Document” referred to in
the Term Loan Agreement. The provisions relating to Loan Documents in Article X of the Term Loan
Agreement are incorporated in this Eighth Amendment by reference. Unless stated otherwise (i) the
singular number includes the plural and vice versa and words of any gender include each other
gender, in each case, as appropriate, (ii) headings and captions may not be construed in
interpreting provisions, (iii) this Eighth Amendment will be construed, and its performance
enforced, under New York law and applicable federal law, (iv) if any part of this Eighth Amendment
is for any reason found to be unenforceable, all other portions of it nevertheless remain
enforceable, and (v) this Eighth Amendment may be executed in any number of counterparts with the
same effect as if all signatories had signed the same document, and all of those counterparts must
be construed together to constitute the same document.

     Paragraph 7. Entire Agreement. This Eighth Amendment represents the final
agreement between the parties about the subject matter of this Eighth Amendment and may not be
contradicted by evidence of prior, contemporaneous, or subsequent oral agreements of the parties.
There are no unwritten oral agreements between the parties.

     Paragraph 8. Parties. This Eighth Amendment binds and inures to the benefit of the
Borrower, the Guarantors, the Administrative Agent, the Collateral Agent, the Syndication Agent,
the Documentation Agent, the Lenders, and their respective successors and assigns.

     Paragraph 9. Further Assurances. The parties hereto each agree to execute from time to
time such further documents as may be necessary to implement the terms of this Eighth Amendment.

     Paragraph 10. Release. As additional consideration for the execution, delivery and performance of this Eighth
Amendment by the parties hereto and to induce the Administrative Agent, the Collateral Agent, the
Syndication Agent, the Documentation Agent, and the Lenders to enter into this Eighth

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

21

 

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

     Paragraph 11. Effectiveness of Facsimile Documents and Signatures. This Eighth
Amendment may be transmitted and/or signed by facsimile. The effectiveness of any such signatures
shall, subject to applicable Law, have the same force and effect as manually-signed originals and
shall be binding on all Loan Parties, the Administrative Agent, the Collateral Agent, the
Syndication Agent, the Documentation Agent and the Lenders. The Administrative Agent may also
require that any such documents and signatures be confirmed by a manually-signed original thereof;
provided, however, that the failure to request or deliver the same shall not limit the
effectiveness of any facsimile document or signature.

     The parties hereto have executed this Eighth Amendment in multiple counterparts to be
effective as of the Eighth Amendment Effective Date.

Remainder of Page Intentionally Blank

Signature Pages to Follow.

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

22

 

     IN WITNESS WHEREOF, the parties hereto have caused this Eighth Amendment to be duly executed
as of the Eighth Amendment Effective Date.

	 	 	 	 	 
	 	BORROWER:

QUEST CHEROKEE, LLC,

as Borrower

 	 
	 	By:  	/s/ David C. Lawler 	 
	 	 	David C. Lawler 	 
	 	 	President 	 
	 

	 	 	 	 	 
	 	GUARANTORS:

QUEST ENERGY PARTNERS, L.P.,

as a Guarantor

 	 
	 	By:  	QUEST ENERGY GP, LLC,
 	 
	 	 	Its General Partner 	 

	 	 	 	 	 
	 	By:  	/s/ David C. Lawler
 	 
	 	 	David C. Lawler, 	 
	 	 	President and Chief Executive Officer 	 
	 

	 	 	 	 	 
	 	QUEST CHEROKEE OILFIELD SERVICE, LLC,

as a Guarantor

 	 
	 	By:  	QUEST CHEROKEE, LLC,
 	 
	 	 	Its Sole Member 	 

	 	 	 	 	 
	 	By:  	/s/ David C. Lawler
 	 
	 	 	David C. Lawler, 	 
	 	 	President 	 
	 

	 	 	 	 	 
	 	STP NEWCO, INC.,

as a Guarantor

 	 
	 	By:  	/s/ David C. Lawler 	 
	 	 	David C. Lawler, 	 
	 	 	President and Chief Executive Officer 	 
	 

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

Signature Page 1

 

	 	 	 	 	 
	AGREED TO AS OF THE EIGHTH

AMENDMENT EFFECTIVE DATE:  	

ADMINISTRATIVE AGENT:

ROYAL BANK OF CANADA,

as Administrative Agent and Collateral Agent

 	 
	 	By:  	       /s/ Susan Khokher 	 
	 	Name:  	Susan Khokher 	 
	 	Title:  	Manager, Agency 	 
	 

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

Signature Page 2

 

	 	 	 	 	 
	AGREED TO AS OF THE EIGHTH

AMENDMENT EFFECTIVE DATE:  	

L/C ISSUER AND LENDER:

ROYAL BANK OF CANADA, as a Lender

and L/C Issuer

 	 
	 	By:  	/s/ Leslie P. Vowell 	 
	 	 	Leslie P. Vowell 	 
	 	 	Attorney-in-Fact 	 
	 

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

Signature Page 3

 

	 	 	 	 	 
	AGREED TO AS OF THE EIGHTH

AMENDMENT EFFECTIVE DATE:  	

KEYBANK NATIONAL ASSOCIATION,

as Syndication Agent and a Lender

 	 
	 	By:  	   /s/ Robert F. Pollis, Jr. 	 
	 	Name: 	  	Robert F. Pollis, Jr. 	 
	 	Title: 	  	Senior Vice President 	 
	 

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

Signature Page 4

 

	 	 	 	 	 
	AGREED TO AS OF THE EIGHTH

AMENDMENT EFFECTIVE DATE:  	

SOCIÉTÉ GÉNÉRALE, as Documentation Agent and

a Lender

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

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

Signature Page 5

 

	 	 	 	 	 
	AGREED TO AS OF THE EIGHTH

AMENDMENT EFFECTIVE DATE:  	

AMEGY BANK, N.A., as a Lender

 	 
	 	By:  	   /s/ Terry Owen McCarter 	 
	 	Name: 	  	Terry Owen McCarter 	 
	 	Title: 	  	Senior Vice President 	 
	 

Eighth Amendment to Quest
Cherokee Second Lien Senior
Term Loan Agreement

Signature Page 6

 

EXHIBIT E

	Shared G&A Services Allocation Shared G&A Services Allocation November 2009

 

 

	2010 Shared Services Allocation Procedure . G&A is composed of two categories: . Third-party
services that are performed on behalf of and directly billed to individual Quest entities (QRCP,
QELP, & QMLP) . Shared services billed through Quest Energy Services (QES) . d S (QES) . QES shared
services are composed of two components: . Directly allocable expenses, such as: — Expenses
incurred by a QES employee performing a discreet project for a single Quest entity (for example,
airfare for a trip to visit a Quest Midstream only customer) . Shared services costs, such as: —
Salaries of QES employees that perform services for the benefit of multiple Quest entities —
Shared overhead of QES employees (for example, rent/utilities of office space) . Shared services
employee compensation allocations are updated monthly by each QES employee. Shared services
overhead costs are allocated based on a compensation-weighted time allocation of all QES employees
that is updated on a monthly basis . . The forecasted 2010 G&A budget, reflected in the
projections, assumes a 12/31/09 recombination. Therefore, continued professional fees as a result
of the now-forecasted 1st quarter 2010 recombination are not reflected in the current budget (1)

 

 

	Allocation Mechanics Example 1 — A/P and Purchasing 1) QES Accounts Payable (A/P) employees
perform services for each individual Quest entity as well as for the shared services entity (QES)
2) On a monthly basis, each A/P employee allocates the amount of their time they anticipate working
on projects related to each Quest entity identified in Figure 1 below related to each Quest entity
identified in Figure 1 below 3) Non-QES time allocations are grossed up to 100% (for use in
compensation-weighted QES time allocation — see step 4) 4) Final monthly time of A/P employees for
QES allocation is calculated, as sum of Fi 1 N b 2009 Q t A/P & P hi C All W k ht A. Direct
allocation of non-QES overhead B. Allocation of QES overhead based on overall compensation-weighted
monthly time allocation of all QES employees, which is calculated per the 100%-gross up of direct
time allocation (per step 3) Figure 1: November 2009 Quest A/P & Purchasing Compensation Allocation
Worksheet Employee QMLP QELP QRCP QES Name BSP + KPC Cherokee Appalachia Appalachia Other Overhead
QMP QELP QRCP QMLP QELP QRCP QMLP QELP QRCP Employee 1 (Manager) Employee’s Time Allocation % to:
Final Employee’s Time Spent on the Following: Employee’s Time Allocation % to: Convert Non-OKC to
100% for QES Calc 2 3 41 py ( g ) Employee 1 10% 45% 40% 0% 2% 3% 10% 85% 2% 10% 88% 2% 11% 87% 3%
Employee 2 20% 35% 5% 5% 18% 17% 20% 40% 23% 24% 48% 28% 24% 50% 26% Employee 3 20% 50% 10% 10% 5%
5% 20% 60% 15% 21% 63% 16% 21% 63% 16% Employee 4 20% 40% 10% 10% 10% 10% 20% 50% 20% 22% 56% 22%
23% 56% 22% Employee 5 30% 40% 10% 10% 5% 5% 30% 50% 15% 32% 53% 16% 31% 53% 16% Employee 6 65% 5%
0% 25% 2% 3% 65% 5% 27% 67% 5% 28% 66% 7% 28% Employee 7 25% 25% 13% 13% 13% 12% 25% 38% 26% 28%
43% 29% 28% 44% 28% Compensation-Weighted Monthly Time Allocation Average (Excluding Co. 14) 25%
58% 17% 4A 4B (2)

 

 

	Allocation Mechanics Example 2 — Management Team . Compensation of Quest management team and
executive support staff are currently allocated 45%/45%/10% between QMLP, QELP, and QRCP
respectively. Since mid-year 20092009, management efforts have been focused on recombination Per
section 8.12 of the Merger Agreement executed July 2, 2009, “all costs and expenses incurred by the
parties to this Agreement in connection with this Agreement and the transaction contemplated hereby
shall be paid on the basis of 10% by QRCP,, 45% by QELP and 45% by QMLP” . After recombination is
completed or is no longer being pursued, time allocations will be adjusted as needed at direction
of individual employees on a monthly basis Final Employee’s Time Name Allocation %to: Last QMLP
QELP QRCP President & CEO Employee 1 Employee 1 45% 45% 10% 45% 45% 10% Employee 2 45% 45% 10%
Employee 3 45% 45% 10% Employee 4 45% 45% 10% Employee 5 45% 45% 10% Employee 6 45% 45% 10%
Employee 7 45% 45% 10% 7 45% 45% 10% Employee 8 45% 45% 10% (3)

 

 

EXHIBIT F

METHODOLOGY FOR DETERMINING ALLOCATED TAXES

OUTLINE OF TERMS OF TAX SHARING AGREEMENT

     1. Overview. The Tax Sharing Agreement will provide for the allocation and sharing of
income taxes among PostRock Energy Corporation (“Parent”), Quest Energy Partners, LLC and
its subsidiaries (collectively, “QELLC”), Quest Midstream Partners, LLC and its
subsidiaries (collectively “QMLLC”), and Quest Resource Corporation and its subsidiaries
other than QMLLC and QELLC (collectively, “QRC”), for taxable periods beginning on or after
the date of the recombination (“Tax Periods”).

     2. Allocation and Sharing of U.S. Federal Income Taxes. For each Tax Period, Parent
will file a consolidated U.S. federal income tax return which includes the income, gains, losses,
deductions, and credits (“Tax Items”) of each of QRC, QELLC, and QMLLC for such Tax Period.
Each of QRC, QELLC, and QMLLC will pay its respective allocable share of U.S. federal income taxes
to Parent for each Tax Period. Such allocable share shall equal the amount of U.S. federal income
tax that would have been owed to the IRS for such Tax Period by QRC, QELLC, or QMLLC, as the case
may be, determined as if such entity were a C corporation that filed its own separate corporate
return for U.S. federal income tax purposes and by taking into account (i) Tax Items generated by
such entity during such Tax Period which are includible on Parent’s consolidated federal income tax
return and (ii) any net operating losses, net capital losses, or tax credits generated by such
entity in any other Tax Periods (excluding taxable periods ending on or prior to the date of the
recombination) which could have been carried forward to such Tax Period if such entity were a C
corporation that filed its own separate corporate return (and elected to waive any carryback of any
such losses or credits) for U.S. federal income tax purposes for each Tax Period.

     3. Allocation and Sharing of State Income Taxes. In those states where QRC, QELLC, or
QMLLC are included in a combined, unitary or consolidated return filed by Parent, QRC’s, QELLC’s,
or QMLLC’s respective shares of any such state income taxes payable to Parent shall be determined
in a manner similar to that described in the preceding paragraph, but by applying applicable state
tax law (rather than federal tax law) in determining the amount of Tax Items and net operating
loss, tax credit or other tax attribute carryovers.

     4. Payment of Tax Sharing Amounts. Any tax sharing amounts, including estimated
taxes, payable by QRC, QELLC, or QMLLC for a Tax Period under the foregoing provisions shall be
paid to Parent no later than 5 days prior to the date that such taxes are due and payable by Parent
to the applicable taxing authority. In cases where estimated or interim tax payments are made to
Parent for a Tax Period, QRC’s, QELLC’s, and QMLLC’s respective shares of the estimated or interim
tax payments shall be determined in a manner similar to that described in the preceding paragraphs
(but shall be based on estimates for the portions of the Tax Period covered by the estimated or
interim tax payment).

     5. Tax Adjustments. If any adjustment is subsequently made to the Tax Items of QRC,
QELLC, or QMLLC pursuant to an original or amended return, refund claim, audit adjustment or
administrative or judicial decision, QRC’s, QELLC’s, and QMLLC’s respective allocable shares of tax
liability shall be readjusted accordingly and any payments required to conform to such adjustment
shall be made to or by Parent.

Exhibit F Page 1exv10w75

Exhibit 10.75

QUEST RESOURCE CORPORATION

2005 OMNIBUS STOCK AWARD PLAN

NONQUALIFIED STOCK OPTION AGREEMENT

(Non-Employee Director)

To: William Damon III (“you” or the “Grantee”)

NOTICE OF GRANT:

          As a director of Quest Resource Corporation (the “Company”), you have been granted an option
(the “Option”) to purchase common shares, $0.01 par value per share, of Quest Resource Corporation
(“Shares”), subject to the terms and conditions of the Quest Resource Corporation 2005 Omnibus
Stock Award Plan (the “Plan”) and the Option Award Agreement between you and the Company, attached
as Exhibit A, as follows:

	 	 	 	 	 	 	 
	 

	 	Grant Date:
	 	August 15, 2007

	 

	 	Total Number of Shares Subject to Option
	 	Fifty thousand (50,000)*

	 

	 	Option Price per Share ($):
	 	$ 10.05	 
	 

	 	Expiration Date:
	 	August 15, 2017

          In order to fully understand your rights under the Plan (a copy of which is attached) and the
Option Award Agreement, attached as Exhibit A, you are encouraged to read the Plan and this
document carefully. By accepting this Option, you are also agreeing to be bound by Exhibit
A. Please refer to the Plan document for the definition of capitalized terms used in this
Agreement.

	 	 	 	 	 
	 	QUEST RESOURCE CORPORATION

 	 
	 	By:  	/s/ Jerry Cash 	 
	 	 	Jerry Cash, 	 
	 	 	President and CEO 	 

 

 

	 	 	 	 	 

EXHIBIT A

AGREEMENT:

     In consideration of the mutual promises and covenants contained herein and other good and
valuable consideration paid by the Grantee to the Company, the Grantee and the Company agree as
follows:

     Section 1. Incorporation of Plan

     All provisions of this Award Agreement and the rights of the Grantee hereunder are subject in
all respects to the provisions of the Plan and the powers of the Board therein provided.
Capitalized terms used in this Award Agreement but not defined shall have the meaning set forth in
the Plan.

     Section 2. Grant of Nonqualified Stock Option

     As of the Grant Date identified above, the Company grants to the Grantee, subject to the terms
and conditions set forth herein and in the Plan, the right, privilege, and option (the “Option”) to
purchase that number of Shares identified above opposite the heading “Total Number of Shares
Subject to Option,” at the per Share price specified above opposite the heading “Option Price per
Share.”

     Section 3. Exercisability of Option

	 	(a)	 	Except to the extent the Option is permitted to be transferred to a person set
forth in Section 8(b) of this Award Agreement, during the Grantee’s lifetime, this
Option may be exercised only by the Grantee. As of the dates specified below, this
Option, except as specifically provided elsewhere under the terms of the Plan or this
Award Agreement, shall become exercisable with respect to that number of shares under
the column stated “Number of Shares Subject to Option Exercisable,” provided that the
Grantee is serving as a director of the Company on the specified date:

	 	 	 	 	 
	 	 	Number of Shares Subject
	Date	 	to Option Exercisable
	Prior to August 15, 2007

	 	 	-0-	 
	August 15, 2007

	 	 	10,000	 
	August 15, 2008

	 	 	20,000	 
	August 15, 2009

	 	 	30,000	 
	August 15, 2010

	 	 	40,000	 
	August 15, 2011

	 	 	50,000	 

	 	(b)	 	In the event of the Grantee’s death or Disability while the Grantee is serving
as a director of the Company, the Option shall become fully exercisable. In the event
that the Grantee dies or becomes Disabled following the Grantee’s Termination of
Affiliation, the exercisability of the Option shall not accelerate due to such death or

2

 

	 	 	 	Disability and shall be exercisable only to the extent it was exercisable on the
date of the Grantee’s Termination of Affiliation.

     Section 4. Method of Exercise

     Provided this Option has not expired, been terminated or cancelled in accordance with the
terms of the Plan, that number of shares subject to the Option which are exercisable in accordance
with Section 3 above may be exercised, in whole or in part and from time to time, by delivery to
the Company or its designee a written notice to the Company or its designee which shall:

	 	(a)	 	set forth the number of Shares with respect to which the Option is to be
exercised (such number must be in a minimum amount of 50 Shares);
	 
	 	(b)	 	if the person exercising this Option is not the Grantee, be accompanied by
satisfactory evidence of such person’s right to exercise this Option; and
	 
	 	(c)	 	be accompanied by payment in full of the Option Price in the form of cash,
personal or certified bank check or electronic wire transfer payable to the order of
the Company or any other means allowable under the Plan which the Company in its sole
discretion determines will provide legal consideration for the Shares.

     Section 5. Expiration of Option

     Unless terminated earlier in accordance with the terms of this Award Agreement or the Plan,
the Option granted herein shall expire at 5:00 P.M., U.S. Central Time, on the tenth
(10th) Anniversary of the Grant Date (the “Expiration Date”). In the event the
Expiration Date is a Saturday, Sunday or any other day which is a holiday of the United States
Federal Government (a “Non-Business Day”), then the Option granted herein shall expire, unless
earlier terminated in a accordance with the terms of this Award Agreement or the Plan, at 5:00
P.M., U.S. Central Time, on the first day that is not a Non-Business Day (a “Business Day”)
following such Expiration Date. In no event may the Option be exercised after the Expiration Date,
whether such exercise is with or without the consent of the Company, the Board or the Grantee,
unless such extended exercise period is permitted by regulations issued under Section 409A of the
Internal Revenue Code (and approved by the Board).

     Section 6. Effect of Termination of Affiliation

     If the Grantee has a Termination of Affiliation for any reason, including termination by the
Company with or without Cause, voluntary resignation, death, or Disability, the effect of such
Termination of Affiliation on all or any portion of this Option is as provided below.
Notwithstanding anything below to the contrary, in no event may the Option be exercised after the
Expiration Date whether such extended exercise period is with or without the consent of the
Company, the Board or the Grantee, unless such delayed exercise is permitted by regulations issued
under Section 409A of the Internal Revenue Code (and approved by the Board).

3

 

	 	(a)	 	If the Grantee has a Termination of Affiliation within the Option Term due to
the Grantee’s ceasing to be a director of the Company, the Option may be exercised by
the Grantee at any time prior to 5:00 P.M., U.S. Central Time, on the ninetieth (90th)
calendar day following the Grantee’s Termination of Affiliation (but in no event later
than the Expiration Date). In the event that such ninetieth (90th) day shall not be a
Business Day, then the Option shall expire at 5:00 P.M., U.S. Central Time, on the
first (1st) Business Day immediately following such ninetieth (90th) day. In any such
case, the Option may be exercised only as to the Shares as to which the Option had
become exercisable on or before the date of the Termination of Affiliation.
	 
	 	(b)	 	If the Grantee dies or becomes Disabled within the Option Term (A) while he or
she is a director of the company, or (B) within the ninety-day period referred to in
clause (a) above, the Option may be exercised by the Grantee or the Grantee’s
Beneficiaries entitled to do so at any time prior to 5:00 P.M., U.S. Central Time, on
the 365th calendar day following the date of the Grantee’s death or
Disability (but in no event later than the Expiration Date). In the event that the
365th day is not a Business Day, then the Option shall expire at 5:00 P.M.,
U.S. Central Time, on the first (1st) Business Day immediately following such
365th day. In any such case, the Option may be exercised only as to the
Shares as to which the Option had become exercisable on or before the date of the
Grantee’s death or Disability, or at such time as the Grantee ceased to be a director
of the Company, whichever is earlier.
	 
	 	(c)	 	In the event the Grantee has a Termination of Affiliation during a Change in
Control Period (which is the one year period following a Change of Control) and such
Termination of Affiliation is initiated by the Company or a Subsidiary other than for
Cause or initiated by the Grantee for Good Reason, then all Options shall immediately
become exercisable and may be exercised, in whole or in part, for ninety (90) days
following such Termination of Affiliation (but in no event later than the Expiration
Date).

     Section 7. Investment Intent

     The Grantee agrees that the Shares acquired on exercise of this Option shall be acquired for
his/her own account for investment only and not with a view to, or for resale in connection with,
any distribution or public offering thereof within the meaning of the Securities Act of 1933 (the
“1933 Act”) or other applicable securities laws. If the Board so determines, any share
certificates issued upon exercise of this Option shall bear a legend to the effect that the Shares
have been so acquired. The Company may, but in no event shall be required to, bear any expenses of
complying with the 1933 Act, other applicable securities laws or the rules and regulations of any
national securities exchange or other regulatory authority in connection with the registration,
qualification, or transfer, as the case may be, of this Option or any Shares acquired upon the
exercise thereof. The foregoing restrictions on the transfer of the Shares shall be inoperative if
(a) the Company previously shall have been furnished with an opinion of counsel, satisfactory to
it, to the effect that such transfer will not involve any violation of the 1933 Act and other
applicable securities laws or (b) the Shares shall have been duly registered in compliance with the
1933 Act and other applicable state or federal securities laws. If this Option, or the Shares
subject to this Option, are so registered under the 1933

4

 

Act, the Grantee agrees that he will not make a public offering of the said Shares except on a
national securities exchange on which the common shares of the Company are then listed.

     Section 8. Nontransferability of Option

	 	(a)	 	Except as provided above in Section 6(b) (in the event of the Grantee’s death)
or below in Section 8(b), or as otherwise may be provided in the Plan, no portion of
the Option granted hereunder may be sold, transferred, pledged, assigned, or otherwise
alienated or hypothecated, other than by will, by the laws of descent and distribution.
All rights with respect to the Option granted to the Grantee shall be available during
his or her lifetime only to the Grantee.
	 
	 	(b)	 	Pursuant to conditions and procedures established by the Board from time to
time, the Board may permit the Option to be transferred to, exercised by and paid to
(a) the Grantee’s child, stepchild, grandchild, parent, stepparent, grandparent,
spouse, former spouse, sibling, niece, nephew, mother-in-law, father-in-law,
son-in-law, daughter-in-law, brother-in-law, or sister-in-law (including adoptive
relationships), (b) any person sharing the Grantee’s household (other than a tenant or
employee), (c) a trust in which persons described in (a) or (b) have more than 50% of
the beneficial interest, (d) a foundation in which persons described in (a) or (b) or
the Grantee owns more than 50% of the voting interests; provided such transfer is not
for value. Any permitted transfer shall be subject to the condition that the Board
receive evidence satisfactory to it that the transfer is being made for estate and/or
tax planning purposes on a gratuitous or donative basis and without consideration
(other than nominal consideration).

     Section 9. Status of the Grantee

     The Grantee shall not be deemed a shareholder of the Company with respect to any of the Shares
subject to this Option, except to the extent that such Shares shall have been purchased and issued
to him or her. The Company shall not be required to issue or transfer any certificates for Shares
purchased upon exercise of this Option until all applicable requirements of law have been complied
with and such Shares shall have been duly listed on any securities exchange on which the Shares may
then be listed.

     Section 10. No Effect on Capital Structure

     This Option shall not affect the right of the Company to reclassify, recapitalize or otherwise
change its capital or debt structure or to merge, consolidate, convey any or all of its assets,
dissolve, liquidate, windup, or otherwise reorganize.

     Section 11. Adjustments

	 	(a)	 	Except as provided in Section 11(b) below, in the event of any change in the
number of outstanding Shares effected without receipt of consideration therefor by the
Company, by reason of a merger, reorganization, consolidation, recapitalization,
separation, liquidation, stock dividend, stock split, share combination or other change

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	 	 	 	in the corporate structure of the Company affecting the Shares, the aggregate number
and class of Shares subject to this Option and the exercise price of this Option
shall be automatically adjusted to accurately and equitably reflect the effect
thereon of such change; provided, however, that any fractional share resulting from
such adjustment shall be eliminated. In the event of a dispute concerning such
adjustment, the decision of the Board shall be conclusive.

	 	(b)	 	Section 11(a) above shall not apply to the 2.5:1 reverse stock split effective
October 31, 2005, as all Awards made under this Award Agreement have given effect to
such reverse stock split.

     Section 12. Amendments 

     This Award Agreement may be amended only by a writing executed by the Company and the Grantee
which specifically states that it is amending this Award Agreement; provided that this Award
Agreement is subject to the power of the Board to amend the Plan as provided therein. Except as
otherwise provided in the Plan, no such amendment shall materially adversely affect the Grantee’s
rights under this Award Agreement without the Grantee’s consent, nor may any such amendment extend
the time the Option may be exercised as specified in Sections 5 and 6 above (except as such an
amendment may otherwise be permitted by regulations issued under Section 409A of the Internal
Revenue Code).

     Section 13. Board Authority

     Any questions concerning the interpretation of this Award Agreement, any adjustments required
to be made under Sections 10 or 11 of this Award Agreement, and any controversy which arises under
this Award Agreement shall be settled by the Board in its sole discretion.

     Section 14. Withholding Taxes

     The Grantee agrees to make appropriate arrangements with the Company for satisfaction of any
applicable Federal, state or local income tax or payroll tax withholding amounts required by law to
be withheld, including the payment to the Company at the time of exercise of an Option of all such
taxes and requirements. The Company is not required to issue shares upon the exercise of this
Option unless the Grantee first pays in cash or by share withholding to the Company such amount, if
any, of tax withholding. The Company may, in its discretion, accommodate the Grantee’s request to
have additional tax withholding taken at the time of exercise.

     Section 15. Nonqualified Stock Option

     This Option is not intended to qualify as an “incentive stock option” within the meaning of
Section 422 of the Code, and shall not be so construed.

     Section 16. Notice

     Whenever any notice is required or permitted hereunder, such notice must be given in writing
by (a) personal delivery, or (b) expedited, recognized delivery service with proof of delivery, or
(c)

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United States Mail, postage prepaid, certified mail, return receipt requested. Any notice
required or permitted to be delivered hereunder shall be deemed to be delivered on the date which
it was personally delivered, received by the intended addressee, or, whether actually received or
not, on the third business day after it is deposited in the United States mail, certified or
registered, postage prepaid, addressed to the person who is to receive it at the address which such
person has theretofore specified by written notice delivered in accordance herewith. The Company or
the Grantee may change, at any time and from time to time, by written notice to the other, the
address specified for receiving notices. Until changed in accordance herewith, the Company’s
address for receiving notices shall be Quest Resource Corporation, Attention: Chief Financial
Officer, 9520 North May Avenue, Oklahoma City, Oklahoma 93120. Unless changed, the Grantee’s
address for receiving notices shall be the last known address of the Grantee on the Company’s
records. It shall be the Grantee’s sole responsibility to notify the Company as to any change in
his or her address. Such notification shall be made in accordance with this Section 17.

     Section 17. Severability

     If any part of this Award Agreement is declared by any court or governmental authority to be
unlawful or invalid, such unlawfulness or invalidity shall not serve to invalidate any part of this
Award Agreement not declared to be unlawful or invalid. Any part so declared unlawful or invalid
shall, if possible, be construed in a manner which gives effect to the terms of such part to the
fullest extent possible while remaining lawful and valid. Additionally, if any of the covenants in
Section 9 are determined by a court to be unenforceable in whole or in part because of such
covenant’s duration or geographical or other scope, such court shall have the power to modify the
duration or scope of such provision as the case may be, so as to cause such covenant, as so
modified, to be enforceable.

     Section 18. Binding Effect

     This Award Agreement shall bind, and, except as specifically provided herein, shall inure to
the benefit of the respective heirs, legal representatives, successors and assigns of the parties
hereto.

     Section 19. Governing Law

     This Award Agreement and the rights of all persons claiming hereunder shall be construed and
determined in accordance with the laws of the State of Oklahoma without giving effect to the
principles of the Conflict of Laws to the contrary.

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     IN WITNESS WHEREOF, the Company has caused this Agreement to be executed and the Participant
has hereunto set his or her hand effective the day and year first above written.

	 	 	 	 	 
	 	QUEST RESOURCE CORPORATION

 	 
	 	By:  	/s/ Jerry Cash 	 
	 	 	Title: 	Chief Executive Officer 	 
	 	 	 	 
	 
	 
	 	 	 	 
	 	PARTICIPANT
	 
	 	 	 	 
	 
	    /s/ William Damon III	 
	 	 

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