Document:

exv10w3

Exhibit 10.3

FORM
OF

PURCHASE AND SALE AGREEMENT

AMONG

MEMORIAL RESOURCE DEVELOPMENT LLC

CLASSIC HYDROCARBONS HOLDINGS, L.P.,

CLASSIC HYDROCARBONS OPERATING, LLC,

CRATON ENERGY HOLDINGS III, LP,

MEMORIAL PRODUCTION PARTNERS GP LLC,

MEMORIAL PRODUCTION PARTNERS LP,

AND

MEMORIAL PRODUCTION OPERATING LLC

 

FORM
OF PURCHASE AND SALE AGREEMENT

      This Purchase and Sale Agreement (this “Agreement”), dated as of [•], 2011 (the “Closing
Date”), is entered into by and among Memorial Resource Development LLC, a Delaware limited
liability company (“MRD”), Classic Hydrocarbons Holdings, L.P., a Texas limited partnership
(“Classic”); Classic Hydrocarbons Operating, LLC, a Texas limited liability company (“Classic
Hydrocarbons”); Craton Energy Holdings III, LP, a Texas limited partnership (“Craton”); Memorial
Production Partners GP LLC (the “General Partner”), a Delaware limited liability company; Memorial
Production Partners LP (the “Partnership”), a Delaware limited partnership; and Memorial Production
Operating LLC, a Delaware limited liability company (“MPP Operating”). The above-named entities are
sometimes referred to in this Agreement each as a “Party” and collectively as the “Parties.”
Capitalized terms used herein shall have the meaning assigned to such terms in Article I.

RECITALS:

     WHEREAS, MRD directly or indirectly controls Classic;

     WHEREAS, Classic directly or indirectly controls Classic Hydrocarbons and Craton;

     WHEREAS, the General Partner and MRD formed the Partnership pursuant to the Delaware Revised
Uniform Limited Partnership Act (the “Delaware LP Act”) to engage in any lawful activity for which
limited partnerships may be organized under the Delaware LP Act; and

     WHEREAS, to accomplish the objectives and purposes in the preceding recital, each of the
following actions has been taken prior to the date hereof:

	A.	 	MRD formed the General Partner pursuant to the Delaware Limited Liability Company Act (the
“Delaware LLC Act”) and committed to contribute $[•] in exchange for 100% of the membership
interests in the General Partner;

	B.	 	the General Partner and MRD formed the Partnership pursuant to the Delaware LP Act, and the
General Partner committed to contribute $1 to the Partnership in exchange for a 0.1% general
partner interest in the Partnership, and MRD committed to contribute $999 to the Partnership
in exchange for a 99.9% limited partner interest in the Partnership; and

	C.	 	the Partnership formed MPP Operating pursuant to the Delaware LLC Act and committed to
contribute $[•] to MPP Operating in exchange for 100% of the membership interests in MPP
Operating; and

     WHEREAS, concurrently herewith, each of the following shall occur:

	1.	 	MRD will contribute $[•] (the “GP Contribution”) to the General Partner in exchange for
additional membership interests in the General Partner;

	2.	 	MRD will cause the General Partner to contribute the GP Contribution to the Partnership in
exchange for a continuation of its prior 0.1% general partner interest in the Partnership,
represented by [•] general partner units;

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	3.	 	MRD will cause Classic, Classic Hydrocarbons and Craton to
sell those interests in certain assets of Classic Hydrocarbons and
Craton respectively as described in Exhibit A
(the “Assets”) to the Partnership for the right to receive
cash equal to $[ ][, which will be sourced first from Credit Facility Borrowings and then, to
the extent necessary, from Offering proceeds];

	4.	 	MRD will cause BlueStone Natural Resources Holdings, LLC (“BlueStone”) and
BlueStone Natural
Resources, LLC (“BNR”) to contribute a 100% membership interest in Columbus Energy LLC to the
Partnership in exchange for the right to receive (i) [•] Common Units (defined herein), (ii)
[•] Subordinated Units (defined herein), and (iii) a distribution of $[•] ([which will be
sourced first from Credit Facility Borrowings and then, to the extent necessary, from Offering
proceeds and] a portion of which is intended to be reimbursement of pre-formation expenditures
to the extent permitted by Treas. Reg. 1.707-4(d));

	5.	 	MRD will cause WHT Energy Partners LLC (“WHT”) to contribute certain assets to ETX I LLC, a
Delaware limited liability company (“ETX”), and then contribute a 100% membership interest in
ETX to the Partnership in exchange for the right to receive (i) [•] Common Units, (ii) [•]
Subordinated Units, and (iii) a distribution of $[•] ([which will be sourced first from Credit
Facility Borrowings and then, to the extent necessary, from Offering proceeds and] a portion
of which is intended to be reimbursement of pre-formation expenditures to the extent permitted
by Treas. Reg. 1.707-4(d));

	6.	 	In connection with the Partnership’s initial public offering of common units (the
“Offering”), the public, through the Underwriters (as defined herein), will purchase from the
Partnership for $[•] in cash (less the Underwriters’ discount and commission of [•]% and a
structuring fee of [•]%), [•] Common Units;

	7.	 	The Partnership will enter into the Credit Agreement (as defined herein) and borrow $[•] (the
“Credit Facility Borrowings”);

	8.	 	The Partnership will use the proceeds from Credit Facility Borrowings and the Offering to pay
(i) transaction expenses, which are estimated to be $[•] (exclusive of the Underwriters’
discount and commission and structuring fee), (ii) the payment to Classic contemplated hereby,
(iii) the payments, distributions and issuances to BlueStone and WHT contemplated by their
respective Contribution Agreements and (iv) an additional aggregate payment to MRD of $[•]
(the “MRD Payment”);

	9.	 	Classic will use $[•] of the cash received hereunder to repay a portion of the Classic Credit
Facility (as defined herein) as set forth herein;

	10.	 	The Partnership will contribute the Assets to MPP Operating in exchange for additional
membership interests in MPP Operating; and

	11.	 	For purposes of convenience and recording, the Partnership will direct Classic, Classic
Hydrocarbons and Craton to directly transfer the Assets to MPP Operating pursuant to the terms
of the Assignment (as defined herein).

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

ARTICLE I.

CERTAIN DEFINED TERMS

     “Assignment” means the form of Assignment and Bill of Sale attached hereto as Exhibit
A.

     “Classic Credit Facility” means the Credit Agreement, dated as of November 1, 2007, by and
among Bank of America, N.A., as Administrative Agent and The Bank of Nova Scotia, as Syndication
Agent, and the lenders party thereto on the one hand, and Classic, on
the other hand, as amended.

     “Commission” means the United States Securities and Exchange Commission.

     “Common Units” means common units representing limited partner interests in the Partnership.

     “Contribution
Agreements” means collectively (i) this Agreement, (ii) the Contribution,
Conveyance and Assumption Agreement dated as of the Closing Date among the Partnership, the General
Partner, MPP Operating, MRD and WHT, and (iii) the Contribution, Conveyance and Assumption
Agreement dated as of the Closing Date among the Partnership, the General Partner, MPP Operating,
MRD, BNR and BlueStone.

     “Credit Agreement” means the Credit Agreement, dated as of [•], 2011, by and among Wells Fargo
Bank, National Association, as Administrative Agent, JPMorgan Chase Bank, N.A., as Syndication
Agent and [          ], as Documentation Agent, and the lenders party thereto
on the one hand, and MPP Operating and the Partnership, on the other hand.

     “Governmental Authority” means the United States, any foreign county, state, county, city or
other incorporated or unincorporated political subdivision, agency or instrumentality thereof.

     “Omnibus Agreement” means the Omnibus Agreement by and among the Partnership, the General
Partner and MRD dated as of the Closing Date.

     “Partnership Agreement” means the First Amended and Restated Agreement of Limited Partnership
of the Partnership dated as of the Closing Date.

     “Registration Statement” means the Registration Statement on Form S-1 originally filed with
the Commission on June 23, 2011 (Registration No. 333-175090), as amended through the date hereof.

     “Subordinated Units” means subordinated units representing limited partner interests in the
Partnership.

     “Transaction Documents” means those documents and instruments to be delivered hereunder by one
or more Parties.

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     “Underwriting
Agreement” means the underwriting agreement, dated as of [•], 2011, by and among
the Partnership, the General Partner, MPP Operating, MRD and Citigroup Global Markets, Inc.,
Raymond James & Associates, Inc. and Wells Fargo Securities, LLC, as representatives of the several
underwriters named therein.

ARTICLE II.

CONTRIBUTIONS, ACKNOWLEDGMENTS AND DISTRIBUTIONS

     2.01 Sale of the Classic Assets by Classic, Classic Hydrocarbons and Craton. Classic, Classic
Hydrocarbons and Craton hereby agree to (and MRD shall cause Classic, Classic Hydrocarbons and
Craton to) assign, transfer, set over and deliver to the Partnership, for its own use forever, all
of Classic Hydrocarbon’s and Craton’s respective right, title and interest to and in the Assets
pursuant to the terms set forth in the Assignment, in exchange for Classic’s receipt of a cash
payment of $[•] and MRD’s receipt of the MRD Payment.

     2.02 Public Cash Contribution. The Parties acknowledge a cash contribution by the public
through the Underwriters to the Partnership of $[•], less the Underwriters’ discount of [•]% and a
structuring fee of [•]%, in exchange for [•] Common Units.

     2.03 Distribution by the Partnership. The Parties acknowledge the distribution of $[•] in the
aggregate, consisting of net proceeds from Credit Facility Borrowings and the Offering, by the
Partnership to MRD, Classic, BlueStone and WHT in accordance with the Contribution Agreements.

     2.04 Payment of Expenses by the Partnership; Cash Distribution by the Partnership to the
Property Contributors. The Parties acknowledge the payment by the Partnership, in connection with
the Offering and the other transactions contemplated hereby, of transaction expenses in the amount
of approximately $[•] (exclusive of the Underwriters’ discount and the structuring fee).

     2.05 Contribution of the Contributed Assets by the Partnership to MPP Operating. The
Partnership hereby agrees to contribute, assign, transfer, set over and deliver to MPP Operating,
for its own use forever, all of its right, title and interest in and to the Assets, as a capital
contribution, which contribution shall be deemed made pursuant to the terms set forth in the
Assignment, in exchange for additional membership interests in MPP Operating.

     2.06 Direct Contribution of Contributed Assets. For convenience and purposes of recording the
Assignment in the applicable county and parish records where the Assets are located, the
Partnership hereby directs Classic, Classic Hydrocarbons and Craton to directly transfer and assign
all of Classic Hydrocarbon’s and Craton’s respective right, title and interest in and to the Assets
to MPP Operating pursuant to the Assignment and such other additional instruments and agreements as
may be necessary to effect the same. Notwithstanding the terms of the Assignment, such right, title
and interest in and to the Assets shall be deemed to have been contributed and transferred from
Classic Hydrocarbons and Craton to the Partnership and, immediately thereafter, from the
Partnership to MPP Operating.

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     2.07 Payment of Credit Facility Obligations. Classic shall use $[_] of the cash paid to it
pursuant to Section 2.01 to repay in part the Classic Credit Facility as contemplated by
the amendment to the Classic Credit Facility dated as of the Closing Date.

ARTICLE III.

TITLE MATTERS

     3.01 Encumbrances.

     (a) Except to the extent expressly provided in any other document executed in connection with
the Agreement or the Offering, the sale of the Assets pursuant to this Agreement is made expressly
subject to all recorded and unrecorded liens (other than consensual liens), encumbrances,
agreements, defects, restrictions, adverse claims and all laws, rules, regulations, ordinances,
judgments and orders of Governmental Authorities or tribunals having or asserting jurisdiction over
the Assets and operations conducted thereon or in connection therewith, in each case to the extent
the same are valid and enforceable and affect the Assets, including all matters that a current
survey or visual inspection of the Assets would reflect.

     (b) To the extent that certain jurisdictions in which the Assets are located may require that
documents be recorded in order to evidence the transfers of titles reflected in this Agreement,
then the provisions set forth in Section 3.01(a) shall also be applicable to the transfers
under such documents.

     3.02 Disclaimer of Warranties; Subrogation; Waiver of Bulk Sales Laws.

     (a) EXCEPT TO THE EXTENT PROVIDED IN ANY OTHER DOCUMENT EXECUTED OR DELIVERED IN CONNECTION
WITH THIS AGREEMENT, THE PARTIES ACKNOWLEDGE AND AGREE THAT NONE OF THE PARTIES HAS MADE, DOES NOT
MAKE, AND EACH SUCH PARTY SPECIFICALLY NEGATES AND DISCLAIMS, ANY REPRESENTATIONS, WARRANTIES,
PROMISES, COVENANTS, AGREEMENTS OR GUARANTIES OF ANY KIND OR CHARACTER WHATSOEVER, WHETHER EXPRESS,
IMPLIED OR STATUTORY, ORAL OR WRITTEN, PAST OR PRESENT, REGARDING (A) THE VALUE, NATURE, QUALITY OR
CONDITION OF THE ASSETS, INCLUDING THE WATER, SOIL, GEOLOGY OR ENVIRONMENTAL CONDITION OF THE
ASSETS GENERALLY, INCLUDING THE PRESENCE OR LACK OF HAZARDOUS SUBSTANCES OR OTHER MATTERS ON THE
ASSETS, (B) THE INCOME TO BE DERIVED FROM THE ASSETS, (C) THE SUITABILITY OF THE ASSETS FOR ANY AND
ALL ACTIVITIES AND USES THAT MAY BE CONDUCTED THEREON, (D) THE COMPLIANCE OF OR BY THE ASSETS OR
THEIR OPERATION WITH ANY LAWS (INCLUDING ANY ZONING, ENVIRONMENTAL PROTECTION, POLLUTION OR LAND
USE LAWS, RULES, REGULATIONS, ORDERS OR REQUIREMENTS), OR (E) THE HABITABILITY, MERCHANTABILITY,
MARKETABILITY, PROFITABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE ASSETS. EXCEPT TO THE
EXTENT PROVIDED IN ANY OTHER DOCUMENT EXECUTED OR DELIVERED IN CONNECTION WITH THIS AGREEMENT, THE
PARTIES ACKNOWLEDGE AND AGREE THAT EACH HAS HAD THE OPPORTUNITY TO INSPECT THE ASSETS, AND EACH IS
RELYING SOLELY ON ITS OWN INVESTIGATION OF THE ASSETS AND NOT ON ANY INFORMATION

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PROVIDED OR TO BE PROVIDED BY ANY OF THE PARTIES. NONE OF THE PARTIES IS LIABLE OR BOUND IN
ANY MANNER BY ANY VERBAL OR WRITTEN STATEMENTS, REPRESENTATIONS OR INFORMATION PERTAINING TO THE
ASSETS FURNISHED BY ANY AGENT, EMPLOYEE, SERVANT OR THIRD PARTY. EACH OF THE PARTIES ACKNOWLEDGES
THAT TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SALE OF THE ASSETS AS PROVIDED FOR HEREIN IS MADE
IN AN “AS IS”, “WHERE IS” CONDITION WITH ALL FAULTS, AND THE ASSETS ARE SOLD AND CONVEYED SUBJECT
TO ALL OF THE MATTERS CONTAINED IN THIS SECTION. THIS SECTION SHALL SURVIVE SUCH SALE AND
CONVEYANCE OR THE TERMINATION OF THIS AGREEMENT. THE PROVISIONS OF THIS SECTION HAVE BEEN
NEGOTIATED BY THE PARTIES AFTER DUE CONSIDERATION AND ARE INTENDED TO BE A COMPLETE EXCLUSION AND
NEGATION OF ANY REPRESENTATIONS OR WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, WITH RESPECT
TO THE ASSETS THAT MAY ARISE PURSUANT TO ANY LAW NOW OR HEREAFTER IN EFFECT, OR OTHERWISE.

     (b) Each
assignment under the Assignment shall include all of the assigning party’s right,
title and interest under and by virtue of all warranties to the
extent pertaining to the Assets, express or
implied (including title warranties and manufacturers’, suppliers’ and contractors’ warranties),
that have, prior to the date of such assignment and/or contribution, been made by any of the
assigning party’s predecessors in title (excluding any affiliate of such assigning party) or by any
third party manufacturers, suppliers and contractors. Each assignment under the Assignment shall be
made with full substitution and subrogation in and to all of the warranties that the assigning
party has or may have against predecessors in title (excluding any affiliate of such assigning
party) and with full subrogation of all rights accruing under the applicable statutes of
limitations and all rights and actions of warranty against all former owners of the Assets
(excluding any affiliate of the assigning party).

     (c) Each of the Parties agrees that the disclaimers contained in this Section 3.02 are
“conspicuous” disclaimers. Any covenants implied by statute or law by the use of the words
“contribute,” “distribute,” “assign,” “transfer,” “deliver” or “set over” or any of them or any
other words used in this Agreement are hereby expressly disclaimed, waived or negated.

     (d) Each of the Parties hereby waives compliance with any applicable bulk sales law or any
similar law in any applicable jurisdiction in respect of the transactions contemplated by this
Agreement.

     (e) The General Partner, the Partnership, and MPP Operating hereby acknowledge and agree that
the express provisions of this Agreement and the Omnibus Agreement contain the sole and exclusive
remedies available to them with respect to the Assets.

ARTICLE IV.

FURTHER ASSURANCES

     4.01 Further Assurances. From and after the date hereof, and without any further
consideration, the Parties agree to execute, acknowledge and deliver all such additional deeds,
assignments, bills of sale, instruments, notices, releases, acquittances and other documents, and

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will do all such other acts and things, all in accordance with applicable law, as may be
necessary or appropriate to (a) more fully assure that the applicable Parties own all of the
properties, rights, titles, interests, estates, remedies, powers and privileges granted by this
Agreement or (b) more fully and effectively vest in the applicable Parties and their respective
successors and assigns beneficial and record title to the interests contributed and assigned by the
Agreement or intended so to be and more fully and effectively carry out the purposes of this
Agreement.

     4.02 Other Assurances. From time to time after the date hereof, and without any further
consideration, each of the Parties shall execute, acknowledge and deliver all such additional
instruments, notices and other documents, and will do all such other acts and things, all in
accordance with applicable law, as may be necessary or appropriate to more fully and effectively
carry out the purposes and intent of this Agreement. Without limiting the generality of the
foregoing, the Parties acknowledge that they have used their good faith efforts to identify all of
the assets being contributed to the Partnership in connection with the Offering. However, it is
possible that assets intended to be contributed to the Partnership were not identified and
therefore are not included in the Assets. To the extent that such assets are identified at a later
date, the Parties shall take the appropriate actions required in order to convey all such assets to
the Partnership (or its successors or assigns).

ARTICLE V.

REPRESENTATIONS AND WARRANTIES

     5.01 Representations and Warranties of All Parties. Each of the Parties to this Agreement
hereby represents and warrants severally as to itself as follows:

     (a) Formation and Good Standing. Such Party is a limited partnership or limited
liability company, legally formed, validly existing and, to the extent applicable, in good standing
under the laws of the state of its formation. Such Party is duly qualified to do business and is in
good standing as a foreign limited partnership or limited liability company, as applicable, in each
jurisdiction where the character of the properties owned or leased by it or the nature of the
businesses transacted by it requires it to be so qualified.

     (b) Authority, Execution and Enforceability. Such Party has full limited partnership
or limited liability company, as applicable, power and authority to enter into this Agreement and
the Transaction Documents to be delivered by such Party hereunder and to perform its obligations
hereunder and thereunder. The execution, delivery and performance of this Agreement and the
Transaction Documents to be delivered by such Party hereunder and the consummation of the
transactions contemplated hereby and thereby have been duly authorized and approved by such Party.
Such Party has duly executed and delivered this Agreement and the Transaction Documents to be
delivered by such Party hereunder, and this Agreement and the Transaction Documents to be delivered
by such Party hereunder constitute such Party’s legal, valid and binding obligation, enforceable
against it in accordance with its terms (except as enforceability may be limited by applicable
bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights
generally or by the principles governing the availability of equitable remedies).

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     (c) No Conflicts.
Neither the execution, delivery nor performance of this Agreement,
nor the Transaction Documents to be delivered hereunder, by such Party will:

     (i) require the approval or consent of any Governmental Authority;

     (ii) conflict with or result in the breach or violation of any term or provision of, or
will constitute a default under, or will otherwise impair the good standing, validity or
effectiveness of, any provision of its certificate of limited partnership, certificate of
formation, agreement of limited partnership, limited liability company agreement or other
formation and governing documents;

     (iii) result in the material breach or violation by it of any material term or
provision of, or constitute a default or give rise to any right of termination, cancellation
or acceleration under any of the terms, conditions or provisions of any material agreement
to which it is bound or by which its property or business is affected, except for such
defaults (or rights of termination, cancellation or acceleration) as to which waivers or
consents have been obtained; or

     (iv) violate in any material respect any federal, state, local or other governmental
law ordinance, or any order, writ, injunction, decree, rule or regulation of any
Governmental Authority applicable to such Party.

ARTICLE VI.

MISCELLANEOUS

     6.01 Notices.

     All notices and other communications provided for or permitted hereunder shall be made in
writing by facsimile, courier service or personal delivery:

	 	(a)	 	if to the Partnership, the General Partner, or MPP Operating:
	 
	 	 	 	1401 McKinney Street, Suite 1025

Houston, TX 77010

Attention: Chief Executive Officer
	 
	 	 	 	Telephone: [                     ]

Facsimile: [                     ]
	 
	 	(b)	 	if to MRD, Classic, Classic Hydrocarbons or Craton:
	 
	 	 	 	1401 McKinney Street, Suite 1025

Houston, TX 77010

Attention: Chief Executive Officer
	 
	 	 	 	Telephone: [                      ]

Facsimile: [                      ]

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     All such notices and communications shall be deemed to have been received at the time
delivered by hand, if personally delivered, when receipt acknowledged, if sent via facsimile or
sent via Internet electronic mail; and when actually received, if sent by any other means.

     6.02 Order of Completion of Transactions. The transactions provided for in Article II
shall be completed on the Closing Date in the order set forth in Article II.

     6.03 Costs. The Partnership shall pay all expenses, fees and costs, including sales, use and
similar taxes, arising out of the contributions, conveyances and deliveries to be made hereunder,
and shall pay all documentary, filing, recording, transfer, deed and conveyance taxes and fees
required in connection therewith. In addition, the Partnership shall be responsible for all costs,
liabilities and expenses (including court costs and reasonable attorneys’ fees) incurred in
connection with the delivery of any document pursuant to Article IV.

     6.04 Headings; References; Interpretation. All Article and Section headings in this Agreement
are for convenience only and shall not be deemed to control or affect the meaning or construction
of any of the provisions hereof. The words “hereof,” “herein” and “hereunder” and words of similar
import, when used in this Agreement, shall refer to this agreement as a whole, including all
Exhibits attached hereto, and not to any particular provision of this Agreement. All references
herein to Articles, Sections, and Exhibits shall, unless the context requires a different
construction, be deemed to be references to the Articles and Sections of this Agreement, and the
Exhibits attached hereto, and all such Exhibits attached hereto are hereby incorporated herein and
made a part hereof for all purposes. All personal pronouns used in this Agreement, whether used in
the masculine, feminine, or neuter gender, shall include all other genders, and the singular shall
include the plural and vice versa. The terms “include,” “includes,” “including” or words of like
import shall be deemed to be followed by the words “without limitation.”

     6.05 Successors and Assigns. This Agreement shall be binding upon and shall inure to the
benefit of the Parties and their respective successors and assigns.

     6.06 No Third Party Rights. The provisions of this Agreement are intended to bind the Parties
as to each other and are not intended to and do not create rights in any other person or confer
upon any other person any benefits, rights or remedies, and no person is or is intended to be a
third party beneficiary of any of the provisions of this Agreement.

     6.07 Counterparts. This Agreement may be executed in any number of counterparts, all of which
together shall constitute one agreement binding on the Parties.

     6.08 Governing Law. This Agreement shall be governed by, and construed in accordance with,
the laws of the State of Texas applicable to contracts made and to be performed wholly within such
state, without giving effect to conflict of laws principles thereof.

     6.09 Severability. If any of the provisions of this Agreement are held by any court of
competent jurisdiction to contravene, or to be invalid under, the laws of any political body having
jurisdiction over the subject matter hereof, such contravention or invalidity shall not invalidate
the entire Agreement. Instead, this Agreement shall be construed as if it did not contain the
particular provision or provisions held to be invalid, and an equitable adjustment

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shall be made and necessary provision added so as to give effect to the intention of the
Parties as expressed in this Agreement at the time of execution of this Agreement.

     6.10 Amendment or Modification. The Agreement may be amended or modified from time to time
only by the written agreement of all of the Parties. Each such instrument shall be reduced to
writing and shall be designated on its face as an amendment to this Agreement.

     6.11 Integration. This Agreement and the instruments referenced herein supersede all previous
understandings or agreements among the Parties, whether oral or written, with respect to its
subject matter. This document and such instruments contain the entire understanding of the Parties.
No understanding, representation, promise or agreement, whether oral or written, is intended to be
or shall be included in or form part of this Agreement unless it is contained in a written
amendment hereto executed by the Parties after the date hereof.

[Signature Page Follows]

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     IN WITNESS WHEREOF, this Agreement has been duly executed by the Parties as of the date first
written above.

	 	 	 	 	 
	 	MEMORIAL PRODUCTION PARTNERS LP

 	 
	 	By:  	Memorial Production Partners GP LLC, its general partner
 	 
	 	 	 
	 	By:  	
 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 
	 	MEMORIAL PRODUCTION PARTNERS GP LLC

 	 
	 	By:  	 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 
	 	MEMORIAL PRODUCTION OPERATING LLC

 	 
	 	By:  	 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 
	 	CLASSIC HYDROCARBONS HOLDINGS, L.P.

 	 
	 	By:  	Classic Hydrocarbons GP Co., L.L.C., its general partner
 	 
	 	 	 
	 	By:  	
 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 
	 	CLASSIC HYDROCARBONS OPERATING, LLC

 	 
	 	By:  	 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 

[Signature Page to Purchase and Sale Agreement]

 

 

	 	 	 	 	 
	 	CRATON ENERGY HOLDINGS III, LP

 	 
	 	By:  	 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 
	 	MEMORIAL RESOURCE DEVELOPMENT LLC

 	 
	 	By:  	 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 

[Signature Page to Purchase and Sale Agreement]

 

EXHIBIT A

Form of Assignment and Bill of Sale

     This Assignment and Bill of Sale (this “Assignment”) is from [Classic Hydrocarbons Operating,
LLC, a Texas limited liability company][Craton Energy Holdings III, LP, a Texas limited
partnership] (“Assignor”) whose address is One Ridgmar Centre, 6500 West Freeway, Suite 222, Fort
Worth, Texas 76116, to Memorial Production Operating LLC, a Delaware limited liability company
(“Assignee”), whose address is 1401 McKinney Street, Suite 1025, Houston, Texas 77010, and is
effective as of 12:01 a.m., time, on [date] (the “Effective Time”).

RECITALS

     WHEREAS, Assignor owns certain oil and gas properties and related assets in the State of
Texas;

     WHEREAS, Assignor, Assignee, Memorial Production Partners LP (the “Partnership”) and certain
other parties have entered into that certain Purchase and Sale Agreement, dated as of [          ], 2011 (the “Purchase Agreement”), pursuant to which Assignor has agreed to contribute, assign,
transfer, set over and deliver to Assignee all of its right, title and interest in and to (among
other things) the Assets (as hereinafter defined);

     WHEREAS, the Partnership has requested that Assignor convey directly to Assignee all of
Assignor’s right, title and interest to and in the Assets for convenience and recording purposes.

     NOW, THEREFORE, in consideration of the mutual benefits derived and to be derived from the
Purchase Agreement and this Assignment by each of Assignor and Assignee, Assignor and Assignee
hereby agree as follows:

ARTICLE 1.

DEFINED TERMS

     Section 1.1 Definitions. Capitalized terms used in this Assignment and not otherwise
defined herein shall have the meanings given to such terms in the Purchase Agreement.

ARTICLE 2.

ASSIGNMENT OF ASSETS

     Section 2.1
Assignment. Assignor, for good and valuable consideration, the receipt
and sufficiency of which are acknowledged, hereby contributes, assigns, transfers, sets over and
delivers to Assignee the following (excepting the Excluded Assets defined below) (individually, an
“Asset,” and collectively, the “Assets”):

          (a) all of Assignor’s right, title and interest in and to (i) those certain wellbores as
currently drilled (including well equipment and appurtenances located at the wellhead) described in
Part 1 of Schedule 1 insofar, but only insofar, as depths from the surface to the base of
the producing formation which is described in Schedule 1 for each such wellbore to the
extent producible from such wellbores, and located on land covered by those certain oil, gas and
mineral leases described in Schedule 2 (such interests of Assignor in such depths in such

A-1

 

wellbores, collectively, the “Wellbores”), (ii) a like undivided interest in, to and under
Assignor’s rights and obligations under the oil, gas and mineral leases described in Schedule
2, insofar, but only insofar, as those rights and obligations pertain to production from the
Wellbores as limited to the depths described in Schedule 1 (the “Leases”), (iii) the
mineral fee interests, royalty interests, overriding royalty interests, production payments, net
profits interests, carried interests and reversionary interests insofar, but only insofar, as they
relate to the Wellbores described in Schedule 1 (Assignor’s interests in the foregoing
Wellbores, the “Wellbore Interests”), and (iv) the pooled units established with respect to the
Wellbore Interests insofar as, but only insofar as, such units relate to the Wellbore Interests
(Assignor’s interests in such pooled units, the “Unit Wellbore Interests”);

          (b) an undivided twenty-five percent (25%) of Assignor’s right, title and interest in and to
those certain wellbores described in Part 2 of Schedule 1 which have not yet been drilled
limited to, with respect to each such wellbore, production from that interval known as the Cotton
Valley “C” zone which is more particularly defined as the stratigraphic equivalent of the zone
found at 9,428’-9,494’ on the Schlumberger Platform Express log dated February 5, 2011 in the
Classic Operating Co., David Dunham #2 well (API # 42-365-37715) located in the C Q Haley Survey,
A-274, Panola County, Texas, together with a like undivided interest in, to and under Assignor’s
rights and obligations under the oil, gas and mineral leases covering the lands in which such
wellbores will be located, insofar, but only insofar, as those rights and obligations pertain to
production from such wellbores attributable to the Cotton Valley “C” zone (the “PUDs,” and together
with the Leases, Wellbore Interests, Wellbores and Unit Wellbore Interests being hereinafter
collectively referred to as the “Properties”). For purposes of clarification, only the interval
described in this subsection (b) is being assigned in the PUD wellbores, not any other depth above
or below such described interval.;

          (c) an undivided interest, corresponding to the conveyed interest in the applicable
Properties, in all production facilities, structures, tubular goods, well equipment, lease
equipment, production equipment, pipelines, inventory and all other personal property, fixtures and
facilities located at the wellhead and used in connection with the Properties (collectively, the
“Facilities”);

          (d) to the extent transferable and relating exclusively to the Properties, an undivided
interest, corresponding to the conveyed interest in the applicable Properties, in all permits and
licenses;

          (e) to the extent transferable, a joint ownership interest in all permits, licenses,
servitudes, easements, rights-of-way, surface fee interests and other surface use agreements to the
extent used in connection with the ownership or operation of the Properties or the Facilities but
also used or usable in connection with the ownership or operation of interests in the Leases other
than the Properties or the Facilities;

          (f) all oil, gas and other hydrocarbons produced or processed in association therewith
(collectively, “Hydrocarbons”) from or attributable to the Properties from and after the Effective
Time and all Hydrocarbons produced therefrom prior to the Effective Time that are upstream of the
sales metering point as of the Effective Time;

A-2

 

          (g) a joint ownership interest in, to and under Assignor’s rights and obligations under all
contracts, agreements, commitments and other arrangements relating to the ownership or operation of
the Properties or other Assets, including the production, storage, treatment, transportation,
processing, purchase, sale, disposal or other disposition of production therefrom or in connection
therewith as or to the extent set forth on Schedule 3 (collectively, the “Contracts”); and

          (h) a copy (electronic or otherwise) of all records, files, orders, maps, data,
interpretations, seismic data, geological and geographic information, schedules, reports and logs
that relate to the Properties, Facilities and/or other Assets that are in Assignor’s possession, to
the extent that Assignor has the right to transfer same to Assignee without the payment of any fee,
penalty or other consideration, but excluding any of the foregoing to the extent that (i) transfer
is restricted by third party written agreement or applicable law and (ii) Assignor is unable to
obtain, using commercially reasonable efforts, a waiver of, or otherwise satisfy, such transfer
restriction (provided that Assignor shall not be required to provide consideration or undertake
obligations to or for the benefit of the holders of such rights in order to obtain any necessary
consent or waiver of such transfer restriction) (subject to such exclusion, collectively referred
to as the “Files”).

     TO HAVE AND TO HOLD the Assets unto Assignee forever, subject, however, to all the terms and
conditions of this Assignment.

     Section 2.2 Excluded Assets. The Assets shall not include, and there is excepted,
reserved and excluded from the sale and assignment contemplated hereby, the following (the
“Excluded Assets”):

          (a) all corporate, financial, tax and legal records of Assignor that relate to Assignor’s
business generally (including the ownership and operation of the Assets) or that relate to the
other Excluded Assets, together with the originals of all of the Files;

          (b) any trade credits, accounts receivable, proceeds or revenues attributable to the Assets
and accruing prior to the Effective Time;

          (c) all Hydrocarbons produced from or attributable to the Properties with respect to any
periods of time prior to the Effective Time, including those Hydrocarbons that are in storage prior
to sale, and all proceeds attributable thereto;

          (d) all refunds of costs, taxes or expenses attributable to any periods of time prior to the
Effective Time;

          (e) all proceeds from the settlements of Contract disputes with purchasers of Hydrocarbons
from or attributable to the Properties, including settlement of take-or-pay disputes, insofar as
said proceeds are attributable to any periods of time prior to the Effective Time;

          (f) all bonds, letters of credit and guarantees, if any, posted by Assignor or its Affiliates
with Governmental Authorities and relating to the Assets;

A-3

 

          (g) all rights, titles, claims and interests of Assignor or its Affiliates under any insurance
policy or agreement, to any insurance proceeds or to or under any bond or bond proceeds;

          (h) all rights and claims relating to the Assets and attributable to periods of time prior to
the Effective Time, including audit rights;

          (i) all privileged attorney-client (i) communications and (ii) other documents (other than
title opinions);

          (j) all materials and information that cannot be disclosed to Assignee as a result of written
confidentiality obligations to third parties;

          (k) all amounts paid by third parties to Assignor or its Affiliates as overhead for periods of
time accruing prior to the Effective Time under any joint operating agreements burdening the
Assets; and

          (l) any matter required to be excluded pursuant to the provisions of Section 2.1(h) of
this Assignment.

     Section 2.3 Retained Rights and Obligations. The execution and delivery of this
Assignment by Assignor, and the execution and acceptance of this Assignment by Assignee, shall not
operate to release or impair any surviving rights or obligations of Assignor or Assignee under the
Purchase Agreement.

     Section 2.4
Operating Agreements. Assignee agrees that the Assets are conveyed, and
shall remain, subject to applicable operating agreements.

ARTICLE 3.

ENCUMBRANCES/DISCLAIMERS

     Section 3.1 Disclaimers and Subrogation of Warranties and Representations.

          (a) Except to the extent expressly provided in any other document executed in connection with
the Purchase Agreement, the contribution of the Assets pursuant to this Assignment are made
expressly subject to all recorded and unrecorded liens (other than consensual liens), encumbrances,
agreements, defects, restrictions, adverse claims and all laws, rules, regulations, ordinances,
judgments and orders of Governmental Authorities or tribunals having or asserting jurisdiction over
the Assets and operations conducted thereon or in connection therewith, in each case to the extent
the same are valid and enforceable and affect the Assets, including all matters that a current
survey or visual inspection of the Assets would reflect.

          (b) EXCEPT TO THE EXTENT PROVIDED IN ANY OTHER DOCUMENT EXECUTED OR DELIVERED IN CONNECTION
WITH THE PURCHASE AGREEMENT, ASSIGNOR AND ASSIGNEE ACKNOWLEDGE AND AGREE THAT NO PARTY HAS MADE,
 AND EACH SUCH PARTY DOES NOT MAKE AND SPECIFICALLY NEGATES AND DISCLAIMS, ANY REPRESENTATIONS,
WARRANTIES, PROMISES, COVENANTS, AGREEMENTS OR GUARANTIES OF ANY KIND OR CHARACTER

A-4

 

WHATSOEVER, WHETHER EXPRESS,
IMPLIED OR STATUTORY, ORAL OR WRITTEN, PAST OR PRESENT, REGARDING (A) THE VALUE, NATURE, QUALITY OR
CONDITION OF THE ASSETS, INCLUDING THE WATER, SOIL, GEOLOGY OR ENVIRONMENTAL CONDITION OF THE
ASSETS GENERALLY, INCLUDING THE PRESENCE OR LACK OF HAZARDOUS SUBSTANCES OR OTHER MATTERS ON THE
ASSETS, (B) THE INCOME TO BE DERIVED FROM THE ASSETS, (C) THE SUITABILITY OF THE ASSETS FOR ANY AND
ALL ACTIVITIES AND USES THAT MAY BE CONDUCTED THEREON, (D) THE COMPLIANCE OF OR BY THE ASSETS OR
THEIR OPERATION WITH ANY LAWS (INCLUDING ANY ZONING, ENVIRONMENTAL PROTECTION, POLLUTION OR LAND
USE LAWS, RULES, REGULATIONS, ORDERS OR REQUIREMENTS), OR (E) THE HABITABILITY, MERCHANTABILITY,
MARKETABILITY, PROFITABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE ASSETS. EXCEPT TO THE
EXTENT PROVIDED IN ANY OTHER DOCUMENT EXECUTED OR DELIVERED IN
CONNECTION WITH THE PURCHASE
AGREEMENT, ASSIGNOR AND ASSIGNEE ACKNOWLEDGE AND AGREE THAT EACH HAS HAD THE OPPORTUNITY TO INSPECT
THE ASSETS, AND EACH IS RELYING SOLELY ON ITS OWN INVESTIGATION OF THE ASSETS AND NOT ON ANY
INFORMATION PROVIDED OR TO BE PROVIDED BY ANY OTHER PARTY. NONE OF ASSIGNOR NOR ASSIGNEE IS LIABLE
OR BOUND IN ANY MANNER BY ANY VERBAL OR WRITTEN STATEMENTS, REPRESENTATIONS OR INFORMATION
PERTAINING TO THE ASSETS FURNISHED BY ANY AGENT, EMPLOYEE, SERVANT OR THIRD PARTY. EACH SUCH PARTY
ACKNOWLEDGES THAT TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE CONTRIBUTION OF THE ASSETS AS
PROVIDED FOR HEREIN IS MADE IN AN “AS IS”, “WHERE IS” CONDITION WITH ALL FAULTS, AND THE ASSETS ARE
CONTRIBUTED AND TRANSFERRED SUBJECT TO ALL OF THE MATTERS CONTAINED IN THIS SECTION 3.1. THE
PROVISIONS OF THIS SECTION HAVE BEEN NEGOTIATED BY ASSIGNOR AND ASSIGNEE AFTER DUE CONSIDERATION
AND ARE INTENDED TO BE A COMPLETE EXCLUSION AND NEGATION OF ANY REPRESENTATIONS OR WARRANTIES,
WHETHER EXPRESS, IMPLIED OR STATUTORY, WITH RESPECT TO THE ASSETS THAT MAY ARISE PURSUANT TO ANY
LAW NOW OR HEREAFTER IN EFFECT, OR OTHERWISE.

          (c) Each of Assignor and Assignee agrees that the disclaimers contained in this Section
3.1 are “conspicuous” disclaimers. Any covenants implied by statute or law by the use of the
words “contribute,” “distribute,” “assign,” “transfer,” “deliver” or “set over” or any of them or
any other words used in this Assignment are hereby expressly disclaimed, waived or negated.

     Section 3.2 Subrogation. Assignor hereby transfers and assigns unto Assignee, its
successors and assigns, all of its right, title and interest under and by virtue of all warranties
 to the extent pertaining to the Assets, express or implied (including, without limitation, title warranties and
manufacturers’, suppliers’ and contractors’ warranties), that have heretofore been made by any of
Assignor’s predecessors in title (excluding any affiliate of Assignor) or by any third party
manufacturers, suppliers and contractors. This Assignment is made with full substitution and
subrogation in and to all of the warranties that Assignor has or may have against predecessors in
title (excluding any affiliate of Assignor) and with full subrogation of all rights accruing under

A-5

 

the applicable statutes of limitations and all rights and actions of warranty against all
former owners of the Assets (excluding any affiliate of Assignor).

ARTICLE 4.

ASSUMED OBLIGATIONS: INDEMNITIES

     Section 4.1 Assumed Obligations. Assignee hereby assumes, and agrees to indemnify and
hold Assignor harmless from, all of Assignor’s obligations to properly plug and abandon, or to
replug if subsequently required, the Wellbores, restore the surface of the lands associated
therewith, and otherwise comply with all applicable reclamation requirements according to the terms
of the Leases and Unit Wellbore Interests and the rules and regulations of governmental authorities
having jurisdiction insofar, but only insofar, as they relate to the Properties (the “Plugging
Obligations”). In addition to the Plugging Obligations but subject to the indemnification
provisions under the Omnibus Agreement, Assignee hereby assumes (and Assignee’s successors and
assigns will assume) and agrees to be bound by and bear, and agrees to indemnify and hold Assignor
harmless from all costs, expenses, obligations and liabilities arising out of the ownership and/or
operation of the Assets insofar, but only insofar, as they relate to the Properties, to the extent
accruing on or after the Effective Time. Assignee also assumes and does hereby (and Assignee’s
successors and assigns will) assume and agree to be bound by and bear all costs, expenses and
liabilities arising under the Contracts insofar, but only insofar, as they relate to the Properties
(except to the extent expressly included in the Excluded Assets or described in the following
sentence). The parties acknowledge and agree that Assignee is not assuming, and Assignor is
retaining, the obligation to pay all invoices, costs and expenses, disbursements, negative
imbalances and payables attributable to the Assets and accruing prior to the Effective Time.

ARTICLE 5.

MISCELLANEOUS

     Section 5.1 Separate Assignments. Where separate assignments of Assets have been or
will be executed for filing with, and approval by, applicable governmental authorities, any such
separate assignments (a) shall evidence this Assignment and assignment of the applicable Assets
herein made and shall not constitute any additional Assignment or assignment of the Assets, (b) are
not intended to modify, and shall not modify, any of the terms, covenants and conditions or
limitations on warranties set forth in this Assignment and are not intended to create, and shall
not create, any representations, warranties or additional covenants of or by Assignor to Assignee
and (c) shall be deemed to contain all of the terms and provisions of this Assignment, as fully and
to all intents and purposes as though the same were set forth at length in such separate
assignments.

     Section 5.2 Schedules. All schedules attached hereto are hereby made part hereof and
incorporated herein by this reference. References in such schedules to instruments on file in the
public records are notice of such instruments for all purposes. Unless provided otherwise, all
recording references in such schedules are to the appropriate records of the counties or parishes
in which the Assets are located.

A-6

 

     Section 5.3 Governing Law. THIS ASSIGNMENT SHALL BE GOVERNED AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS, EXCLUDING ANY CONFLICTS OF LAW RULE OR PRINCIPLE
THAT MIGHT REFER CONSTRUCTION OF SUCH PROVISIONS TO THE LAWS OF ANOTHER JURISDICTION, EXCEPT TO THE
EXTENT THAT THE LAWS OF ANOTHER STATE ARE MANDATORILY APPLIED TO THE DISPUTED MATTER.

     Section 5.4 Successors and Assigns. This Assignment shall bind and inure to the
benefit of the parties hereto and their respective successors and assigns.

     Section 5.5 Counterparts. This Assignment may be executed in any number of
counterparts, and each counterpart hereof shall be deemed to be an original instrument, but all
such counterparts shall constitute but one instrument. Any signature hereto delivered by a party by
facsimile or electronic transmission shall be deemed an original signature hereto. Any Schedule hereto may be
redacted for filing in each county or parish, such that the schedule filed in any county or parish
will describe only those Assets located in such county or parish.

A-7

 

     EXECUTED as of the date of the parties’ acknowledgments below, but effective as of the
Effective Time.

	 	 	 	 	 
	 	CLASSIC HYDROCARBONS OPERATING, LLC

 	 
	 	By:  	 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 
	 	MEMORIAL PRODUCTION OPERATING LLC

 	 
	 	By:  	 	 
	 	Name:  	 	 	 
	 	Title:  	 	 	 
	 

Signature Page to

Assignment and Bill of Sale

 

 

	 	 	 

	[Sample form of acknowledgment.] 
	 
	STATE OF TEXAS

	 	§
	 

	 	§
	COUNTY OF HARRIS

	 	§

     BE IT REMEMBERED, THAT I, the undersigned authority, a notary public duly qualified,
commissioned, sworn and acting in and for Harris County, Texas, and being authorized in such county
and state to take acknowledgments, hereby certify that, on this day of _____________, 2011, there
personally appeared before me __________________________, of Classic Hydrocarbons Operating, LLC, a
Texas limited liability company, known to me to be such authorized signatory on behalf of such
entity, such entity being the general partner of a party to the foregoing instrument, and I hereby
further certify as follows:

This instrument was acknowledged before me on this day, by the foregoing
individual, in his capacity as an officer of the aforementioned entities, on
behalf of such entity.

     IN WITNESS WHEREOF, I have hereunto set my hand and official seal in the City of Houston,
Texas, on the day and year first above written.

	 	 	 	 	 
	 	Notary Public in and for the State of Texas

 	 
	 	 
 	 
	 	 	 
	 	 	 
	 

 

 

Schedule 1

Wells

Part 1

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	Field	 	 	 	 	 	Well	 	Well
	Aris Propnum	 	API	 	County	 	State	 	Name	 	Well #	 	Name	 	Interval

Part 2

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	Field	 	 	 	 	 	Well	 	Well
	Aris Propnum	 	API	 	County	 	State	 	Name	 	Well #	 	Name	 	Interval

 

 

Schedule 2

Leases

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	Field	 	Original	 	Original	 	Effective	 	 	 	 	 	 	 	 
	Unique ID	 	Name	 	Lessor/Grantor	 	Lessee/Grantee	 	Date	 	Book/Volume	 	Page	 	State	 	County

 

 

Schedule 3

Contractsexv10w4

Exhibit 10.4

FORM OF

CONTRIBUTION, CONVEYANCE AND ASSUMPTION AGREEMENT

AMONG

MEMORIAL RESOURCE DEVELOPMENT LLC

WHT ENERGY PARTNERS LLC,

MEMORIAL PRODUCTION PARTNERS GP LLC,

MEMORIAL PRODUCTION PARTNERS LP,

AND

MEMORIAL PRODUCTION OPERATING LLC

 

 

FORM OF CONTRIBUTION, CONVEYANCE AND ASSUMPTION AGREEMENT

     This Contribution, Conveyance and Assumption Agreement (this “Agreement”), dated as of [•],
2011 (the “Closing Date”), is entered into by and among Memorial Resource Development LLC, a
Delaware limited liability company (“MRD”), WHT Energy Partners LLC, a Delaware limited liability
company (“WHT”); Memorial Production Partners GP LLC, a Delaware limited liability company (the
“General Partner”), Memorial Production Partners LP, a Delaware limited partnership (the
“Partnership”), and Memorial Production Operating LLC, a Delaware limited liability company (“MPP
Operating”). The above-named entities are sometimes referred to in this Agreement each as a “Party”
and collectively as the “Parties.” Capitalized terms used herein shall have the meaning assigned to
such terms in Article I.

RECITALS:

     WHEREAS, MRD directly or indirectly controls WHT; and

     WHEREAS, the General Partner and MRD formed the Partnership pursuant to the Delaware Revised
Uniform Limited Partnership Act (the “Delaware LP Act”) to engage in any lawful activity for which
limited partnerships may be organized under the Delaware LP Act; and

     WHEREAS, to accomplish the objectives and purposes in the preceding recital, each of the
following actions has been taken prior to the date hereof:

	A.	 	MRD formed the General Partner pursuant to the Delaware Limited Liability Company Act (the
“Delaware LLC Act”) and committed to contribute $[•] in exchange for 100% of the membership
interests in the General Partner;

	B.	 	the General Partner and MRD formed the Partnership pursuant to the Delaware LP Act, and the
General Partner committed to contribute $1 to the Partnership in exchange for a 0.1% general
partner interest in the Partnership, and MRD committed to contribute $999 to the Partnership
in exchange for a 99.9% limited partner interest in the Partnership; and

	C.	 	the Partnership formed MPP Operating pursuant to the Delaware LLC Act and committed to
contribute $[•] to MPP Operating in exchange for 100% of the membership interests in MPP
Operating; and

     WHEREAS, concurrently herewith, each of the following shall occur:

	1.	 	MRD will contribute $[•] (the “GP Contribution”) to the General Partner in exchange for
additional membership interests in the General Partner;

	2.	 	MRD will cause the General Partner to contribute the GP Contribution to the Partnership in
exchange for a continuation of its prior 0.1% general partner interest in the Partnership,
represented by [•] general partner units;

	3.	 	MRD will cause Classic Hydrocarbons Holdings, L.P., Classic Hydrocarbons Operating, LLC
and Craton Energy Holdings III, LP  (taken together, “Classic”) to sell certain assets to the
Partnership for the right to receive cash equal to $[   ] [, which will be sourced first

1

 

	 	 	from Credit Facility Borrowings and then, to the extent necessary, from Offering proceeds];

	4.	 	MRD will cause BlueStone Natural Resources Holdings, LLC (“BlueStone”) to contribute Columbus
Energy LLC to the Partnership in exchange for the right to receive (i) [•] Common Units
(defined herein), (ii) [•] Subordinated Units (defined herein), and (iii) a distribution of
$[•] ([which will be sourced first from Credit Facility Borrowings and then, to the extent
necessary, from Offering proceeds and] a portion of which is intended to be reimbursement of
pre-formation expenditures to the extent permitted by Treas. Reg. 1.707-4(d));

	5.	 	MRD will cause WHT to contribute a 100% membership interest (the “ETX Interest”) in ETX I
LLC, a Delaware limited liability company (“ETX”), to the Partnership in exchange for the
right to receive (i) [•] Common Units, (ii) [•] Subordinated Units, and (iii) a distribution
of $[•] ([which will be sourced first from Credit Facility Borrowings and then, to the extent
necessary, from Offering proceeds and] a portion of which is intended to be reimbursement of
pre-formation expenditures to the extent permitted by Treas. Reg. 1.707-4(d));

	6.	 	In connection with the Partnership’s initial public offering of common units (the
“Offering”), the public, through the Underwriters (as defined herein), will purchase from the
Partnership for $[•] in cash (less the Underwriters’ discount and commission of [•]% and a
structuring fee of [•]%), [•] Common Units;

	7.	 	The Partnership will enter into the Credit Agreement (as defined herein) and borrow $[•] (the
“Credit Facility Borrowings”);

	8.	 	The Partnership will use the proceeds from Credit Facility Borrowings and the Offering to pay
(i) transaction expenses, which are estimated to be $[•] (exclusive of the Underwriters’
discount and commission and structuring fee), (ii) the payments, distributions and issuances
to WHT contemplated hereby, (iii) the payments, distributions and issuances to BlueStone and
Classic contemplated by their respective Contribution Agreements and (iv) an additional
aggregate payment to MRD of $[•] (the “MRD Payment”);

	9.	 	WHT will use $[•] of the cash received hereunder to repay a portion of the WHT Credit
Facility (as defined herein) as set forth herein;

	10.	 	For purposes of convenience, WHT will direct the Partnership to directly issue the Common
Units and Subordinated Units contemplated by 5 above to MRD;

	11.	 	The Partnership will contribute the ETX Interest to MPP Operating in exchange for additional
membership interests in MPP Operating; and

	12.	 	For purposes of convenience and recording, the Partnership will direct WHT to directly
transfer the ETX Interest to MPP Operating pursuant to the terms of the Assignment (as defined
herein).

2

 

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

ARTICLE I.

CERTAIN DEFINED TERMS

     “Assets” means the assets listed on Exhibit A, which list is intended to cover all
assets owned by ETX but with respect to which no representation is made herein.

     “Assignment” means the form of Membership Interest Assignment attached hereto as Exhibit
B.

     “Commission” means the United States Securities and Exchange Commission.

     “Common Units” means common units representing limited partner interests in the Partnership.

     “Contribution Agreements” means collectively (i) this Agreement, (ii) the Purchase and Sale
Agreement dated as of the Closing Date among the Partnership, the General Partner, MPP Operating,
MRD and Classic, and (iii) the Contribution, Conveyance and Assumption Agreement dated as of the
Closing Date among the Partnership, the General Partner, MPP Operating, MRD and BlueStone.

     “Credit Agreement” means the Credit Agreement, dated as of [•], 2011, by and among Wells Fargo
Bank, National Association, as Administrative Agent, JPMorgan Chase Bank, N.A., as Syndication
Agent and [   ], as Documentation Agent, and the lenders party thereto
on the one hand, and MPP Operating and the Partnership, on the other hand.

     “Effective Time” means 12:01 a.m. on the Closing Date.

     “GAAP” means generally accepted accounting principles in the United States, consistent
applied.

     “Governmental Authority” means the United States, any foreign county, state, county, city or
other incorporated or unincorporated political subdivision, agency or instrumentality thereof.

     “Omnibus Agreement” by and among the Partnership, the General Partner and MRD dated as of the
Closing Date.

     “Partnership Agreement” means the First Amended and Restated Agreement of Limited Partnership
of the Partnership dated as of the Closing Date.

     “Registration Statement” the Registration Statement on Form S-1 originally filed with the
Commission on June 23, 2011 (Registration No. 333-175090), as amended through the date hereof.

3

 

     “Subordinated Units” means subordinated units representing limited partner interests in the
Partnership.

     “Transaction Documents” means those documents and instruments to be delivered hereunder by one
or more Parties.

     “Underwriting Agreement” means the underwriting agreement, dated as of [•], 2011, by and among
the Partnership, the General Partner and Citigroup Global Markets, Inc., Raymond James &
Associates, Inc. and Wells Fargo Securities, LLC, as representatives of the several underwriters
named therein.

     “WHT Credit Facility” means the Credit Agreement, dated as of April 8, 2011, by and among Bank
of Montreal, as Administrative Agent, Comerica Bank, as Syndication Agent and BNP Paribas and Wells
Fargo Bank, N.A., as Co-Documentation Agents, and the lenders party thereto on the one hand, and
WHT, on the other hand.

ARTICLE II.

CONTRIBUTIONS, ACKNOWLEDGMENTS AND DISTRIBUTIONS

     2.01 Contribution of the ETX Interest by WHT. WHT hereby agrees to (and MRD shall cause WHT
to) contribute, assign, transfer, set over and deliver to the Partnership, for its own use forever,
all of its right, title and interest to and in the ETX Interest, as a capital contribution, which
contribution shall be deemed made pursuant to the terms set forth in the Assignment Documents, in
exchange for (a) WHT’s receipt of (i) [•] Common Units, (ii) [•] Subordinated Units, and (iii) a
cash distribution of $[•] and (b) MRD’s receipt of the MRD Payment.

     2.02 Public Cash Contribution. The Parties acknowledge a cash contribution by the public
through the Underwriters to the Partnership of $[•], less the Underwriters’ discount of [•]% and a
structuring fee of [•]%, in exchange for [•] Common Units.

     2.03 Distribution by the Partnership. The Parties acknowledge the distribution of $[•] in the
aggregate, consisting of net proceeds from Credit Facility Borrowings and the Offering, by the
Partnership to MRD, Classic, BlueStone and WHT in accordance with the Contribution Agreements.

     2.04 Payment of Expenses by the Partnership; Cash Distribution by the Partnership to the
Property Contributors. The Parties acknowledge the payment by the Partnership, in connection with
the Offering and the other transactions contemplated hereby, of transaction expenses in the amount
of approximately $[•] (exclusive of the Underwriters’ discount and the structuring fee).

     2.05 Contribution of the Contributed Assets by the Partnership to MPP Operating. The
Partnership hereby agrees to contribute, assign, transfer, set over and deliver to MPP Operating,
for its own use forever, all of its right, title and interest in and to the ETX Interest, as a
capital contribution, which contribution shall be deemed made pursuant to the terms set forth in
the Assignment, in exchange for additional membership interests in MPP Operating.

4

 

     2.06 Direct Contribution of Contributed Assets. For convenience, the Partnership hereby
directs WHT to directly transfer and assign the ETX Interest to MPP Operating pursuant to the
Assignment and such other additional instruments and agreements as may be necessary to effect the
same. Notwithstanding the terms of the Assignment, the ETX Interest shall be deemed to have been
contributed and transferred from WHT to the Partnership and, immediately thereafter, from the
Partnership to MPP Operating.

     2.07 Direct Issuance of Common Units and Subordinated Units. For convenience, WHT hereby
directs the Partnership to directly issue to MRD the Common Units and Subordinated Units to be
issued to WHT pursuant to Section 2.01. Notwithstanding the foregoing, such Common Units
and Subordinated Units shall be deemed to have been issued (as applicable) to WHT and, immediately
thereafter, distributed pro rata by WHT to its owners and, immediately thereafter, distributed by
such owners to MRD.

     2.08 Payment of Credit Facility Obligations. WHT shall use $[ _ ] of the cash distributed to it
pursuant to Section 2.01 to repay in part the WHT Credit Facility as contemplated by the
amendment to the WHT Credit Facility dated as of the Closing Date.

ARTICLE III.

TITLE MATTERS

     3.01 [Intentionally Omitted].

     3.02 Disclaimer of Warranties; Subrogation; Waiver of Bulk Sales Laws.

     (a) EXCEPT TO THE EXTENT PROVIDED IN ANY OTHER DOCUMENT EXECUTED OR DELIVERED IN CONNECTION
WITH THIS AGREEMENT OR THE OFFERING THE PARTIES ACKNOWLEDGE AND AGREE THAT NONE OF THE PARTIES HAS
MADE, DOES NOT MAKE, AND EACH SUCH PARTY SPECIFICALLY NEGATES AND DISCLAIMS, ANY REPRESENTATIONS,
WARRANTIES, PROMISES, COVENANTS, AGREEMENTS OR GUARANTIES OF ANY KIND OR CHARACTER WHATSOEVER,
WHETHER EXPRESS, IMPLIED OR STATUTORY, ORAL OR WRITTEN, PAST OR PRESENT, REGARDING (A) THE VALUE,
NATURE, QUALITY OR CONDITION OF THE ASSETS, INCLUDING THE WATER, SOIL, GEOLOGY OR ENVIRONMENTAL
CONDITION OF THE ASSETS GENERALLY, INCLUDING THE PRESENCE OR LACK OF HAZARDOUS SUBSTANCES OR OTHER
MATTERS ON THE ASSETS, (B) THE INCOME TO BE DERIVED FROM THE ASSETS, (C) THE SUITABILITY OF THE
ASSETS FOR ANY AND ALL ACTIVITIES AND USES THAT MAY BE CONDUCTED THEREON, (D) THE COMPLIANCE OF OR
BY THE ASSETS OR THEIR OPERATION WITH ANY LAWS (INCLUDING ANY ZONING, ENVIRONMENTAL PROTECTION,
POLLUTION OR LAND USE LAWS, RULES, REGULATIONS, ORDERS OR REQUIREMENTS), OR (E) THE HABITABILITY,
MERCHANTABILITY, MARKETABILITY, PROFITABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE ASSETS.
EXCEPT TO THE EXTENT PROVIDED IN ANY OTHER DOCUMENT EXECUTED OR DELIVERED IN CONNECTION WITH THIS
AGREEMENT OR THE OFFERING, THE PARTIES ACKNOWLEDGE AND AGREE THAT EACH HAS HAD THE OPPORTUNITY TO
INSPECT THE ASSETS, AND EACH IS RELYING SOLELY ON ITS OWN INVESTIGATION OF THE ASSETS AND NOT ON
ANY

5

 

INFORMATION PROVIDED OR TO BE PROVIDED BY ANY OF THE PARTIES. NONE OF THE PARTIES IS LIABLE OR
BOUND IN ANY MANNER BY ANY VERBAL OR WRITTEN STATEMENTS, REPRESENTATIONS OR INFORMATION PERTAINING
TO THE ASSETS FURNISHED BY ANY AGENT, EMPLOYEE, SERVANT OR THIRD PARTY. EACH OF THE PARTIES
ACKNOWLEDGES THAT TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE CONTRIBUTION OF THE ASSETS AS
PROVIDED FOR HEREIN IS MADE IN AN “AS IS”, “WHERE IS” CONDITION WITH ALL FAULTS, AND THE ASSETS ARE
CONTRIBUTED AND CONVEYED SUBJECT TO ALL OF THE MATTERS CONTAINED IN THIS SECTION. THIS SECTION
SHALL SURVIVE SUCH CONTRIBUTION AND CONVEYANCE OR THE TERMINATION OF THIS AGREEMENT. THE PROVISIONS
OF THIS SECTION HAVE BEEN NEGOTIATED BY THE PARTIES AFTER DUE CONSIDERATION AND ARE INTENDED TO BE
A COMPLETE EXCLUSION AND NEGATION OF ANY REPRESENTATIONS OR WARRANTIES, WHETHER EXPRESS, IMPLIED OR
STATUTORY, WITH RESPECT TO THE ASSETS THAT MAY ARISE PURSUANT TO ANY LAW NOW OR HEREAFTER IN
EFFECT, OR OTHERWISE.

     (b) Each of the Parties agrees that the disclaimers contained in this Section 3.02 are
“conspicuous” disclaimers. Any covenants implied by statute or law by the use of the words
“contribute,” “distribute,” “assign,” “transfer,” “deliver” or “set over” or any of them or any
other words used in this Agreement are hereby expressly disclaimed, waived or negated.

     (c) Each of the Parties hereby waives compliance with any applicable bulk sales law or any
similar law in any applicable jurisdiction in respect of the transactions contemplated by this
Agreement.

     (d) The General Partner, the Partnership, and MPP Operating hereby acknowledge and agree that
the express provisions of this Agreement and the Omnibus Agreement contain the sole and exclusive
remedies available to them with respect to the Assets or the contribution of the ETX Interest.

ARTICLE IV.

FURTHER ASSURANCES

     4.01 Further Assurances. From and after the date hereof, and without any further
consideration, the Parties agree to execute, acknowledge and deliver all such additional deeds,
assignments, bills of sale, instruments, notices, releases, acquittances and other documents, and
will do all such other acts and things, all in accordance with applicable law, as may be necessary
or appropriate to (a) more fully assure that the applicable Parties own all of the properties,
rights, titles, interests, estates, remedies, powers and privileges granted by this Agreement or
(b) more fully and effectively vest in the applicable Parties and their respective successors and
assigns beneficial and record title to the interests contributed and assigned by the Agreement or
intended so to be and more fully and effectively carry out the purposes of this Agreement.

     4.02 Other Assurances. From time to time after the date hereof, and without any further
consideration, each of the Parties shall execute, acknowledge and deliver all such additional
instruments, notices and other documents, and will do all such other acts and things, all in
accordance with applicable law, as may be necessary or appropriate to more fully and

6

 

effectively carry out the purposes and intent of this Agreement. Without limiting the
generality of the foregoing, the Parties acknowledge that they have used their good faith efforts
to identify all of the assets being contributed to the Partnership in connection with the Offering.
However, it is possible that Assets intended to be owned by ETX were not properly transferred from
WHT or its affiliates and therefore are not included in the assets owned by ETX. To the extent
that such assets are identified at a later date, the Parties shall take the appropriate actions
required in order to convey all such assets to the Partnership (or its successors or assigns).

ARTICLE V.

REPRESENTATIONS AND WARRANTIES

     5.01 Representations and Warranties of All Parties. Each of the Parties to this Agreement
hereby represents and warrants severally as to itself as follows:

     (a) Formation and Good Standing. Such Party is a limited partnership or limited
liability company, legally formed, validly existing and, to the extent applicable, in good standing
under the laws of the state of its formation. Such Party is duly qualified to do business and is in
good standing as a foreign limited partnership or limited liability company, as applicable, in each
jurisdiction where the character of the properties owned or leased by it or the nature of the
businesses transacted by it requires it to be so qualified.

     (b) Authority, Execution and Enforceability. Such Party has full limited partnership
or limited liability company, as applicable, power and authority to enter into this Agreement and
the Transaction Documents to be delivered by such Party hereunder and to perform its obligations
hereunder and thereunder. The execution, delivery and performance of this Agreement and the
Transaction Documents to be delivered by such Party hereunder and the consummation of the
transactions contemplated hereby and thereby have been duly authorized and approved by such Party.
Such Party has duly executed and delivered this Agreement and the Transaction Documents to be
delivered by such Party hereunder, and this Agreement and the Transaction Documents to be delivered
by such Party hereunder constitute such Party’s legal, valid and binding obligation, enforceable
against it in accordance with its terms (except as enforceability may be limited by applicable
bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights
generally or by the principles governing the availability of equitable remedies).

     (c) No Conflicts. Neither the execution, delivery nor performance of this Agreement
nor the Transaction Documents to be delivered by such Party hereunder by such Party will:

     (i) require the approval or consent of any Governmental Authority;

     (ii) conflict with or result in the breach or violation of any term or provision of, or
will constitute a default under, or will otherwise impair the good standing, validity or
effectiveness of, any provision of its certificate of limited partnership, certificate of
formation, agreement of limited partnership, limited liability company agreement or other
formation and governing documents;

     (iii) result in the material breach or violation by it of any material term or
provision of, or constitute a default or give rise to any right of termination, cancellation

7

 

or acceleration under any of the terms, conditions or provisions of any material
agreement to which it is bound or by which its property or business is affected, except for
such defaults (or rights of termination, cancellation or acceleration) as to which waivers
or consents have been obtained; or

     (iv) violate in any material respect any federal, state, local or other governmental
law ordinance, or any order, writ, injunction, decree, rule or regulation of any
Governmental Authority applicable to such Party.

     5.02 Certain Other Representations and Warranties . MRD and WHT hereby represent and warrant,
jointly and severally, that the following statements are true and correct as of the date hereof.

     (a) The ETX Interest has been duly authorized, is validly issued and fully paid and, except to
the extent provided under the Delaware LLC Act or the constitutive documents of ETX,
non-assessable.

     (b) The ETX Interest is not subject to any purchase option, call option, right of first
refusal, preemptive right or any similar right whatsoever, except to the extent set forth in the
constitutive documents of ETX.

     (c) WHT is the record and beneficial owner of the ETX Interest free and clear of all liens
other than those set forth in the constitutive documents of ETX, which is the sole equity interest
in ETX.

     (d) There are no rights or contracts (including options, warrants, calls and preemptive
rights) obligating ETX (A) to issue, sell, pledge, dispose of or encumber any equity interest or
any securities convertible, exercisable or exchangeable into any equity interest, (B) to redeem,
purchase or acquire in any manner any equity interest or any securities that are convertible,
exercisable or exchangeable into any equity interest or (C) to make any dividend or distribution of
any kind with respect to any equity interest (or to allow any participation in profits or
appreciation in value).

ARTICLE VI.

PRE-EFFECTIVE TIME

RECEIPTS AND CREDITS

     6.01 All monies, proceeds, receipts, credits and income attributable to the Assets (as
determined in accordance with GAAP consistent with past practices) for all periods of time at, from
and after the Effective Time, shall be the sole property and entitlement of ETX. In addition, to
the extent ETX receives any monies, proceeds, receipts, credits and income attributable to the
Assets (as determined in accordance with GAAP consistent with past practices) for any period of
time before the Effective Time, ETX shall promptly pay over such amounts to WHT.

     6.02 All invoices, costs and expenses, disbursements and payables attributable to the Assets
(as determined in accordance with GAAP consistent with past practices) for all periods of time at,
from and after the Effective Time, shall be the sole obligation of ETX. In addition, all
invoices, costs and expenses, disbursements and payables attributable to the Assets (as

8

 

determined in accordance with GAAP consistent with past practices) for any period of time before
the Effective Time, shall be the sole obligation of WHT, and, WHT shall promptly pay or, if paid by
ETX, promptly reimburse ETX for, the same.

     6.03 For avoidance of doubt, any payments pursuant to this Article VI shall not
constitute adjustments of the consideration set forth in Section 2.01.

     6.04 For a period of twelve months following the Closing Date, the Parties shall grant to each
other full access to the relevant records and personnel to allow each of them to confirm the
payments made under this Article VI, but only to the extent the granting Party may do so without
breaching any contractual restriction binding on such Party; provided that such Party will use
commercially reasonable methods to have such restriction(s) waived for such purpose.

ARTICLE VII.

MISCELLANEOUS

     7.01 Notices.

     All notices and other communications provided for or permitted hereunder shall be made in
writing by facsimile, courier service or personal delivery:

	 	(a)	 	if to the Partnership, the General Partner, or MPP Operating:
	 
	 	 	 	1401 McKinney Street, Suite 1025

Houston, TX 77010

Attention:          Chief Executive Officer

	 
	 	 	 	Telephone:        [           ]

Facsimile:         [           ]

	 	(b)	 	if to MRD or WHT:
	 
	 	 	 	1401 McKinney Street, Suite 1025

Houston, TX 77010

Attention:          Chief Executive Officer

	 
	 	 	 	Telephone:        [           ]

Facsimile:         [           ]

     All such notices and communications shall be deemed to have been received at the time
delivered by hand, if personally delivered, when receipt acknowledged, if sent via facsimile or
sent via Internet electronic mail; and when actually received, if sent by any other means.

     7.02 Order of Completion of Transactions. The transactions provided for in Article II
shall be completed on the Closing Date in the order set forth in Article II.

     7.03 Costs. The Partnership shall pay all expenses, fees and costs, including sales, use and
similar taxes, arising out of the contributions, conveyances and deliveries to be made

9

 

hereunder, and shall pay all documentary, filing, recording, transfer, deed and conveyance taxes and fees
required in connection therewith. In addition, the Partnership shall be responsible for all costs,
liabilities and expenses (including court costs and reasonable attorneys’ fees) incurred in
connection with the delivery of any document pursuant to Article IV.

     7.04 Headings; References; Interpretation. All Article and Section headings in this Agreement
are for convenience only and shall not be deemed to control or affect the meaning or construction
of any of the provisions hereof. The words “hereof,” “herein” and “hereunder” and words of similar
import, when used in this Agreement, shall refer to this agreement as a whole, including all
Exhibits attached hereto, and not to any particular provision of this Agreement. All references
herein to Articles, Sections, and Exhibits shall, unless the context requires a different
construction, be deemed to be references to the Articles and Sections of this Agreement, and the
Exhibits attached hereto, and all such Exhibits attached hereto are hereby incorporated herein and
made a part hereof for all purposes. All personal pronouns used in this Agreement, whether used in
the masculine, feminine, or neuter gender, shall include all other genders, and the singular shall
include the plural and vice versa. The terms “include,” “includes,” “including” or words of like
import shall be deemed to be followed by the words “without limitation.”

     7.05 Successors and Assigns. This Agreement shall be binding upon and shall inure to the
benefit of the Parties and their respective successors and assigns.

     7.06 No Third Party Rights. The provisions of this Agreement are intended to bind the Parties
as to each other and are not intended to and do not create rights in any other person or confer
upon any other person any benefits, rights or remedies, and no person is or is intended to be a
third party beneficiary of any of the provisions of this Agreement.

     7.07 Counterparts. This Agreement may be executed in any number of counterparts, all of which
together shall constitute one agreement binding on the Parties.

     7.08 Governing Law. This Agreement shall be governed by, and construed in accordance with,
the laws of the State of Texas applicable to contracts made and to be performed wholly within such
state, without giving effect to conflict of laws principles thereof.

     7.09 Severability. If any of the provisions of this Agreement are held by any court of
competent jurisdiction to contravene, or to be invalid under, the laws of any political body having
jurisdiction over the subject matter hereof, such contravention or invalidity shall not invalidate
the entire Agreement. Instead, this Agreement shall be construed as if it did not contain the
particular provision or provisions held to be invalid, and an equitable adjustment shall be made
and necessary provision added so as to give effect to the intention of the Parties as expressed in
this Agreement at the time of execution of this Agreement.

     7.10 Amendment or Modification. The Agreement may be amended or modified from time to time
only by the written agreement of all of the Parties. Each such instrument shall be reduced to
writing and shall be designated on its face as an amendment to this Agreement.

     7.11 Integration. This Agreement and the instruments referenced herein supersede all previous
understandings or agreements among the Parties, whether oral or written, with respect to its
subject matter. This document and such instruments contain the entire understanding of the

10

 

Parties.
No understanding, representation, promise or agreement, whether oral or written, is intended to be
or shall be included in or form part of this Agreement unless it is contained in a written
amendment hereto executed by the Parties after the date hereof.

[Signature Page Follows]

11

 

     IN WITNESS WHEREOF, this Agreement has been duly executed by the Parties as of the date first
written above.

	 	 	 	 	 
	 	MEMORIAL PRODUCTION PARTNERS LP

 	 
	 	By:  	Memorial Production Partners GP LLC, its general partner
 	 

	 	 	 	 	 
	 	 	 
	 	By:  	
 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

	 	 	 	 	 
	 	MEMORIAL PRODUCTION PARTNERS GP LLC

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

	 	 	 	 	 
	 	MEMORIAL PRODUCTION OPERATING LLC

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

	 	 	 	 	 
	 	WHT ENERGY PARTNERS LLC

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

	 	 	 	 	 
	 	MEMORIAL RESOURCE DEVELOPMENT LLC

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

[Signature Page to Contribution Agreement]

 

EXHIBIT A

Assets

[insert list of Assets]

A-1

 

EXHIBIT B

Form of Membership Interest Assignment

     This Membership Interest Assignment (this “Assignment”) is from WHT Energy Partners LLC, a
Delaware limited liability company (“Assignor”), to Memorial Production Operating LLC, a Delaware
limited liability company (“Assignee”), and is effective as of 12:01 a.m., time, on [date] (the
“Effective Time”).

RECITALS

     WHEREAS, Assignor owns all of the membership interests (the “Interest”) of ETX I LLC, a
Delaware limited liability company (the “Company”), and desires to assign its ownership of such
company to Assignee, and Assignee desires to acquire ownership of the Company from Assignor.

     WHEREAS, Assignor and Assignee and certain other parties have entered into that certain
Contribution, Conveyance and Assumption Agreement, dated as of [ ], 2011 (the
“Contribution Agreement”), pursuant to which Assignor has agreed to contribute, assign, transfer,
set over and deliver to Assignee all of its right, title and interest in and to (among other
things) the Interest (as hereinafter defined).

     NOW, THEREFORE, in consideration of the mutual benefits derived and to be derived from the
Contribution Agreement and this Assignment by each of Assignor and Assignee, Assignor and Assignee
hereby agree as follows:

ARTICLE 1.

DEFINED TERMS

     Section 1.1 Definitions. Capitalized terms used in this Assignment and not otherwise
defined herein shall have the meanings given to such terms in the Contribution Agreement.

ARTICLE 2.

ASSIGNMENT AND ASSUMPTION

     Section 2.1 Assignment. Assignor, for good and valuable consideration, the receipt
and sufficiency of which are acknowledged, hereby contributes, assigns, transfers, sets over and
delivers to Assignee all of the Interest, and any income, distributions, or other value associated
therewith or deriving therefrom on and after the Effective Time.

     Section 2.2 Assumption. Assignee hereby assumes, and covenants to timely and fully
perform, all obligations and liabilities of Assignor with respect to the Interest, whether arising
before or after the Effective Time.

     Section 2.3 Other Matters. Assignor hereby agrees to promptly execute and deliver any
corrective assignments and other legal documents or notification reasonably requested by Assignee
to give effect to the intent of this Assignment, and Assignor hereby acknowledges and agrees that,
as a result of this Assignment, it no longer has any membership interest in the Company, and it
ceases to be a member of the Company.

A-1

 

ARTICLE 3.

ENCUMBRANCES/DISCLAIMERS

     Section 3.1 Disclaimers and Subrogation of Warranties and Representations.

          (a) Except to the extent expressly provided in any other document executed in connection with
the Contribution Agreement or the Offering, the contribution of the Interest pursuant to this
Assignment is made expressly subject to all restrictions set forth in the limited liability company
agreement of the Company.

          (b) EXCEPT TO THE EXTENT PROVIDED IN ANY OTHER DOCUMENT EXECUTED OR DELIVERED IN CONNECTION
WITH THE CONTRIBUTION AGREEMENT OR THE OFFERING, ASSIGNOR AND ASSIGNEE ACKNOWLEDGE AND AGREE THAT
NO PARTY HAS MADE, DOES NOT MAKE, AND EACH SUCH PARTY SPECIFICALLY NEGATES AND DISCLAIMS, ANY
REPRESENTATIONS, WARRANTIES, PROMISES, COVENANTS, AGREEMENTS OR GUARANTIES OF ANY KIND OR CHARACTER
WHATSOEVER, WHETHER EXPRESS, IMPLIED OR STATUTORY, ORAL OR WRITTEN, PAST OR PRESENT, REGARDING (A)
THE VALUE, NATURE, QUALITY OR CONDITION OF THE COMPANY’S ASSETS, INCLUDING THE WATER, SOIL, GEOLOGY
OR ENVIRONMENTAL CONDITION OF SUCH ASSETS GENERALLY, INCLUDING THE PRESENCE OR LACK OF HAZARDOUS
SUBSTANCES OR OTHER MATTERS ON SUCH ASSETS, (B) THE INCOME TO BE DERIVED FROM THE COMPANY’S ASSETS,
(C) THE SUITABILITY OF THE COMPANY’S ASSETS FOR ANY AND ALL ACTIVITIES AND USES THAT MAY BE
CONDUCTED THEREON, (D) THE COMPLIANCE OF OR BY THE COMPANY’S ASSETS OR THEIR OPERATION WITH ANY
LAWS (INCLUDING ANY ZONING, ENVIRONMENTAL PROTECTION, POLLUTION OR LAND USE LAWS, RULES,
REGULATIONS, ORDERS OR REQUIREMENTS), OR (E) THE HABITABILITY, MERCHANTABILITY, MARKETABILITY,
PROFITABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE COMPANY’S ASSETS. EXCEPT TO THE EXTENT
PROVIDED IN ANY OTHER DOCUMENT EXECUTED OR DELIVERED IN CONNECTION WITH THIS CONTRIBUTION AGREEMENT
OR THE OFFERING, ASSIGNOR AND ASSIGNEE ACKNOWLEDGE AND AGREE THAT EACH HAS HAD THE OPPORTUNITY TO
INSPECT THE COMPANY AND ITS ASSETS, AND EACH IS RELYING SOLELY ON ITS OWN INVESTIGATION OF THE
COMPANY AND ITS ASSETS AND NOT ON ANY INFORMATION PROVIDED OR TO BE PROVIDED BY ANY OTHER PARTY.
NONE OF ASSIGNOR NOR ASSIGNEE IS LIABLE OR BOUND IN ANY MANNER BY ANY VERBAL OR WRITTEN STATEMENTS,
REPRESENTATIONS OR INFORMATION PERTAINING TO THE COMPANY OR ITS ASSETS FURNISHED BY ANY AGENT,
EMPLOYEE, SERVANT OR THIRD PARTY. EACH SUCH PARTY ACKNOWLEDGES THAT TO THE MAXIMUM EXTENT PERMITTED
BY LAW, THE CONTRIBUTION OF THE INTEREST AS PROVIDED FOR HEREIN IS MADE IN AN “AS IS”, “WHERE IS”
CONDITION WITH ALL FAULTS, AND THE INTEREST IS CONTRIBUTED AND TRANSFERRED SUBJECT TO ALL OF THE
MATTERS CONTAINED IN THIS SECTION. THE PROVISIONS OF THIS SECTION HAVE BEEN NEGOTIATED BY ASSIGNOR
AND ASSIGNEE AFTER DUE CONSIDERATION AND ARE INTENDED TO BE A COMPLETE EXCLUSION AND NEGATION OF
ANY

A-2

 

REPRESENTATIONS OR WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, WITH RESPECT TO THE
INTEREST AND THE COMPANY THAT MAY ARISE PURSUANT TO ANY LAW NOW OR HEREAFTER IN EFFECT, OR
OTHERWISE.

          (c) Each of Assignor and Assignee agrees that the disclaimers contained in this Section 3.1
are “conspicuous” disclaimers. Any covenants implied by statute or law by the use of the words
“contribute,” “distribute,” “assign,” “transfer,” “deliver” or “set over” or any of them or any
other words used in this Assignment are hereby expressly disclaimed, waived or negated.

ARTICLE 4.

MISCELLANEOUS

     Section 4.1 Governing Law. THIS ASSIGNMENT SHALL BE GOVERNED AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS, EXCLUDING ANY CONFLICTS OF LAW RULE OR PRINCIPLE
THAT MIGHT REFER CONSTRUCTION OF SUCH PROVISIONS TO THE LAWS OF ANOTHER JURISDICTION, EXCEPT TO THE
EXTENT THAT THE LAWS OF ANOTHER STATE ARE MANDATORILY APPLIED TO THE DISPUTED MATTER.

     Section 4.2 Successors and Assigns. This Assignment shall bind and inure to the
benefit of the parties hereto and their respective successors and assigns.

     Section 4.3 Counterparts. This Assignment may be executed in any number of
counterparts, and each counterpart hereof shall be deemed to be an original instrument, but all
such counterparts shall constitute but one instrument. Any signature hereto delivered by a party by
facsimile transmission shall be deemed an original signature hereto. Exhibit A may be redacted for
filing in each county or parish, such that the exhibit filed in any county or parish will describe
only those Assets located in such county or parish.

A-3

 

     EXECUTED as of the date of the parties’ acknowledgments below, but effective as of the
Effective Time.

	 	 	 	 	 
	 	WHT ENERGY PARTNERS LLC

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

	 	 	 	 	 
	 	MEMORIAL PRODUCTION OPERATING LLC

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

Signature Page to

Assignment and Bill of Sale

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