Document:

Exhibit 10.1

 

SUPPORT AGREEMENT

 

THIS SUPPORT AGREEMENT (this “Agreement”)
is dated as of January 13, 2017, by and among each stockholder of the Company set forth on Schedule A hereto (each, a “Stockholder”),
Noble Energy, Inc., a Delaware corporation (“Parent”), and, solely for purposes of Section 3(f)(ii) and
Section 9 hereof, Clayton Williams Energy, Inc., a Delaware corporation (the “Company”).

 

W I T N E S S E T H:

 

WHEREAS, concurrently with the execution and
delivery of this Agreement, Parent, the Company, Wild West Merger Sub, Inc., a Delaware corporation and an indirect wholly owned
subsidiary of Parent (“Merger Sub”) and NBL Permian LLC, a Delaware limited liability company and an indirect
wholly owned subsidiary of Parent, are entering into an Agreement and Plan of Merger, dated as of the date hereof (as the same
may be amended or supplemented, the “Merger Agreement”), providing that, among other things, upon the terms
and subject to the conditions set forth in the Merger Agreement, the Company will be merged with Merger Sub (the “Merger”),
and each outstanding share of common stock, par value $0.10 per share, of the Company (“Company Common Stock”)
will be converted into the Merger Consideration;

 

WHEREAS, each Stockholder beneficially owns
such number of shares of Company Common Stock and such number of shares of special voting preferred stock, par value $0.10 per
share, of the Company (“Company Preferred Stock”) set forth opposite such Stockholder’s name on Schedule
A hereto (collectively, such shares of Company Common Stock and Company Preferred Stock are referred to herein as the “Subject
Shares”);

 

WHEREAS, as a condition to Parent to enter
into the Merger Agreement, Parent has required that the Stockholders enter into this Agreement;

 

WHEREAS, the Company has requested that the
Stockholders enter into this Agreement; and

 

WHEREAS, the execution and delivery of this
Agreement by the Stockholders, and the form and substance of this Agreement, have been reviewed by the Audit Committee of the Company’s
Board in consultation with outside legal counsel and recommended by the Committee for approval by the Board of Directors of the
Company, and have been approved by the Board of Directors of the Company.

 

    	 

    	 

    

NOW, THEREFORE, to induce Parent to enter
into, and in consideration of its entering into, the Merger Agreement, and in consideration of the promises and the representations,
warranties and agreements contained herein and therein, the parties, intending to be legally bound hereby, agree as follows:

 

1.                 
Representations and Warranties of each Stockholder. Each Stockholder hereby represents and warrants to Parent, severally
and not jointly, as of the date hereof as follows:

 

(a)               
Due Organization; Qualification. Such Stockholder is a limited partnership duly formed
under the laws of Delaware and is validly existing and in good standing under the laws thereof. 

 

(b)              
Authority; No Violation. Such Stockholder has full organizational power and authority
to execute and deliver this Agreement and to perform its obligations hereunder. The execution and delivery of this Agreement and
the performance of its obligations hereunder have been duly and validly approved by all requisite limited partnership action and
no other organizational proceedings on the part of such Stockholder are necessary to approve this Agreement and to perform its
obligations hereunder. This Agreement has been duly and validly executed and delivered by such Stockholder and (assuming due authorization,
execution and delivery by Parent) this Agreement constitutes a valid and binding obligation of such Stockholder, enforceable against
such Stockholder in accordance with its terms, except that such enforceability (i) may be limited by bankruptcy, insolvency, moratorium
or other similar laws affecting or relating to the enforcement of creditors’ rights generally and (ii) is subject to general
principles of equity and the discretion of the court before which any proceedings seeking injunctive relief or specific performance
may be brought. Neither the execution and delivery of this Agreement by such Stockholder, nor the consummation by such Stockholder
of the transactions contemplated hereby, nor compliance by such Stockholder with any of the terms or provisions hereof, will (x)
violate any provision of the governing documents of such Stockholder, (y) violate any statute, code, ordinance, rule, regulation,
judgment, order, writ, decree or injunction applicable to such Stockholder, or any of its properties or assets, or (z) violate,
conflict with, result in a breach of any provision of or the loss of any benefit under, constitute a default (or an event which,
with notice or lapse of time, or both, would constitute a default) under, result in the termination of or a right of termination
or cancellation under, accelerate the performance required by, or result in the creation of any lien, claim, mortgage, encumbrance,
pledge, deed of trust, security interest, equity or charge of any kind (each, a “Lien”) upon any of the Subject
Shares pursuant to any of the terms, conditions or provisions of any note, bond, mortgage, indenture, deed of trust, license, lease,
agreement or other instrument or obligation to which such Stockholder is a party, or by which it or any of its properties or assets
may be bound or affected.

 

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(c)               
The Subject Shares. As of the date of this Agreement, such Stockholder is the beneficial
owner of and has the sole right to vote and dispose of the Subject Shares set forth opposite such Stockholder’s name on Schedule
A hereto, free and clear of any Liens whatsoever, except for any Liens which arise hereunder or, to the extent applicable,
subject to the terms of the Company Preferred Stock or Company Warrant. None of the Subject Shares is subject to any voting trust
or other agreement, arrangement or restriction, except as contemplated by this Agreement. Without limiting the generality of the
foregoing, there are no agreements or arrangements of any kind, contingent or otherwise, obligating such Stockholder to sell, transfer
(including by tendering into any tender or exchange offer), assign, grant a participation interest in, option, pledge, hypothecate
or otherwise dispose of or encumber, including by operation of law or otherwise (each, a “Transfer”), or cause
to be Transferred, any of the Subject Shares, other than a Transfer, such as a hedging or derivative transaction, with respect
to which such Shareholder retains its Subject Shares and the sole right to vote, dispose of and exercise dissenters’ rights with
respect to its Subject Shares during the Applicable Period, and (ii) no Person has any contractual or other right or obligation
to purchase or otherwise acquire any of the Subject Shares. Other than the Subject Shares and the Company Warrant, such Stockholder
does not own any equity interests or other equity-based securities in the Company or any of its Subsidiaries. 

 

(d)              
Absence of Litigation. There is no litigation, suit, claim, action, proceeding or
investigation pending, or to the knowledge of such Stockholder, threatened against such Stockholder, or any property or asset of
such Stockholder, before any Governmental Authority that seeks to delay or prevent the consummation of the transactions contemplated
by this Agreement.

 

(e)               
No Consents Required. No consent of, or registration, declaration or filing with,
any Person or Governmental Authority is required to be obtained or made by or with respect to such Stockholder in connection with
the execution, delivery and performance of this Agreement and except for any applicable requirements and filings with the SEC,
if any, under the Exchange Act and except where the failure to obtain such consents, approvals, authorizations or permits, or to
make such filings or notifications, would not prevent or delay the performance by such Stockholder of such Stockholder’s
obligations under this Agreement in any material respect. 

 

(f)               
Reliance. Such Stockholder understands and acknowledges that Parent is entering into,
and causing Merger Sub to enter into, the Merger Agreement in reliance upon such Stockholder’s execution and delivery of
this Agreement.

 

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(g)              
Company Warrant. Such Stockholder is the registered and beneficial owner of and has
the sole right to dispose of the Company Warrants set forth opposite such Stockholder’s name on Schedule A hereto, free
and clear of any Liens whatsoever, subject to its terms, and except for any Liens which arise hereunder. No Company Warrant has
been exercised. There has been no adjustment to the “Exercise Price” or the number of “Warrant Shares”
(each as defined in the Company Warrants) and, to the knowledge of such Stockholder, no event has occurred giving rise to any such
adjustment.

 

(h)              
Stockholder Has Adequate Information. Such Stockholder is a sophisticated seller with respect to the Subject Shares
and has adequate information concerning the business and financial condition of Parent to make an informed decision regarding the
Merger and the transactions contemplated thereby and has independently and without reliance upon Parent and based on such information
as such Stockholder has deemed appropriate, made its own analysis and decision to enter into this Agreement. Such Stockholder acknowledges
that Parent has not made and does not make any representation or warranty, whether express or implied, of any kind or character
except as expressly set forth in this Agreement. Notwithstanding the foregoing, and for the elimination of doubt, Stockholder is
not waiving and is expressly preserving any claims that might arise in connection with the Registration Statement contemplated
to be filed in conncetion with the Merger.

 

2.                 
Representations and Warranties of Parent. Parent hereby represents and warrants to each Stockholder as of the date
hereof as follows:

 

(a)               
Due Organization. Parent is a corporation duly incorporated under the laws of the
State of Delaware and is validly existing and in good standing under the laws thereof. 

 

(b)              
Authority; No Violation. Parent has full corporate power and authority to execute
and deliver this Agreement. The execution and delivery of this Agreement have been duly and validly approved by the Board of Directors
of Parent and no other corporate proceedings on the part of Parent are necessary to approve this Agreement. This Agreement has
been duly and validly executed and delivered by Parent and (assuming due authorization, execution and delivery by the Stockholder)
this Agreement constitutes a valid and binding obligation of Parent, enforceable against Parent in accordance with its terms except
that such enforceability (i) may be limited by bankruptcy, insolvency, moratorium or other similar laws affecting or relating to
the enforcement of creditors’ rights generally and (ii) is subject to general principles of equity and the discretion of
the court before which any proceedings seeking injunctive relief or specific performance may be brought. Neither the execution
and delivery of this Agreement by Parent, nor the consummation by Parent of the transactions contemplated hereby, nor compliance
by Parent with any of the terms or provisions hereof, will (x) violate any provision of the governing documents of Parent or the
certificate of incorporation, by-laws or similar governing documents of any of Parent’s Subsidiaries, (y) violate any statute,
code, ordinance, rule, regulation, judgment, order, writ, decree or injunction applicable to the Parent or any of Parent’s
Subsidiaries, or any of their respective properties or assets, or (z) violate, conflict with, result in a breach of any provision
of or the loss of any benefit under, constitute a default (or an event which, with notice or lapse of time, or both, would constitute
a default) under, result in the termination of or a right of termination or cancellation under, accelerate the performance required
by, or result in the creation of any Lien upon any of the respective properties or assets of Parent or any of Parent’s Subsidiaries
under, any of the terms, conditions or provisions of any note, bond, mortgage, indenture, deed of trust, license, lease, agreement
or other instrument or obligation to which Parent or any of Parent’s Subsidiaries is a party, or by which they or any of
their respective properties or assets may be bound or affected.

 

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3.                 
Covenants of Each Stockholder. Each Stockholder, severally and not jointly, agrees as follows; provided that all
of the following covenants shall apply solely to actions taken by such Stockholder in its capacity as a stockholder of the Company:

 

(a)               
Agreement to Vote Subject Shares. During the Applicable Period (as defined below),
at any meeting of the stockholders of the Company, however called, or at any postponement or adjournment thereof, or in connection
with any written consent of the stockholders of the Company or in any other circumstance upon which a vote, consent or other approval
of all or some of the stockholders of the Company is sought, such Stockholder shall, and shall cause any holder of record of its
Subject Shares on any applicable record date to, vote or, if stockholders are requested to vote their shares through the execution
of an action by written consent in lieu of such meeting of stockholders of the Company, execute a written consent or consents with
respect to all of its Subject Shares: (i) in favor of adoption of the Merger Agreement and approval of any other matter that is
required to be approved by the stockholders of the Company in order to effect the Merger; (ii) against any merger agreement or
merger (other than the Merger Agreement and the Merger), consolidation, combination, sale or transfer of a material amount of assets,
reorganization, recapitalization, dissolution, liquidation or winding up of or by the Company or any of its Subsidiaries or any
Alternative Proposal, and (iii) against any amendment of the Company’s certificate of incorporation or by-laws or other proposal
or transaction involving the Company or any of its Subsidiaries, which amendment or other proposal or transaction would in any
manner delay, impede, frustrate, prevent or nullify the Merger, the Merger Agreement or any of the transactions contemplated by
the Merger Agreement or change in any manner the voting rights of any outstanding class of capital stock of the Company. During
the Applicable Period, such Stockholder shall retain at all times the right to vote all of its Subject Shares in such Stockholder’s
sole discretion and without any other limitation on those matters other than those set forth in this Section 3(a) that are
at any time or from time to time presented for consideration to the Company’s stockholders generally. During the Applicable
Period, in the event that any meeting of the stockholders of the Company is held, such Stockholder shall (or shall cause the holder
of record on any applicable record date to) appear at such meeting or otherwise cause all of its Subject Shares to be counted as
present thereat for purposes of establishing a quorum. During the Applicable Period, such Stockholder further agrees not to commit
or agree, and to cause any record holder of its Subject Shares not to commit or agree, to take any action inconsistent with the
foregoing during the Applicable Period. “Applicable Period” means the period from and including the date of
this Agreement to and including the date of the termination of this Agreement pursuant to Section 5 hereof. 

 

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(b)              
No Transfers. Except as provided in the second to last sentence of this Section
3(b), such Stockholder agrees not to, and to cause any record holder of its Subject Shares, not to, in any such case directly
or indirectly, during the Applicable Period (i) Transfer or enter into any agreement, option or other arrangement (including any
profit sharing arrangement) with respect to the Transfer of, any of its Subject Shares (or any interest therein) to any Person,
other than the exchange of its Subject Shares for Merger Consideration in accordance with the Merger Agreement or (ii) grant any
proxies, or deposit any of its Subject Shares into any voting trust or enter into any voting arrangement, whether by proxy, voting
agreement or otherwise, with respect to its Subject Shares, other than pursuant to this Agreement. Subject to the second to last
sentence of this Section 3(b), such Stockholder further agrees not to commit or agree to take, and to cause any record holder
of any of its Subject Shares not to commit or agree to take, any of the foregoing actions during the Applicable Period. Notwithstanding
the foregoing, such Stockholder shall have the right to (a) Transfer its Subject Shares to an Affiliate if and only if such Affiliate
shall have agreed in writing, in a manner acceptable in form and substance to Parent, (i) to accept such Subject Shares subject
to the terms and conditions of this Agreement, and (ii) to be bound by this Agreement as if it were “the Stockholder”
for all purposes of this Agreement; provided, however, that no such transfer shall relieve such Stockholder from its obligations
under this Agreement with respect to any Subject Shares or (b) Transfer its Subject Shares in a transaction, such as a hedging
or derivative transaction, with respect to which such Shareholder retains its Subject Shares and the sole right to vote, exercise
dissenters’ rights with respect to and dispose of its Subject Shares during the Applicable Period, provided that no such transaction
shall (x) in any way limit any of the obligations of such Stockholder under this Agreement, or (y) have any adverse effect on the
ability of the Stockholder to perform its obligations under this Agreement. For purposes of this Section 3(b) only, the
term “Subject Shares” shall include the Company Warrants and any shares of Company Common Stock issuable upon exercise
of any Company Warrant. 

 

(c)               
Dissenters’ Rights. Each Stockholder hereby waives, and agrees not to exercise
or assert, if applicable, and to cause any record holder of any of its Subject Shares to waive and not to exercise or assert, if
applicable, any appraisal rights under Section 262 of the DGCL in connection with the Merger.

 

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(d)              
Adjustment to Subject Shares. In case of a stock dividend or distribution, or any
change in the Company Common Stock or the Company Preferred Stock by reason of any stock dividend or distribution, split-up, recapitalization,
combination, exchange of shares or the like, the term “Subject Shares” shall be deemed to refer to and include the
Subject Shares as well as all such stock dividends and distributions and any securities into which or for which any or all of the
Subject Shares may be changed or exchanged or which are received in such transaction. 

 

(e)               
Non-Solicitation. Except to the extent that the Company or the Company Board is permitted
to do so under the Merger Agreement, but subject to any limitations imposed on the Company or the Company Board under the Merger
Agreement, such Stockholder agrees, solely in its capacity as a stockholder of the Company, that it shall not, and shall cause
its Affiliates and its and their respective agents and representatives not to, directly or indirectly, (i) initiate, solicit, knowingly
encourage or knowingly facilitate (including by way of furnishing information) any Alternative Proposal, (ii) participate or engage
in any discussions or negotiations with, or disclose any non-public information or data relating to the Company or any of its Subsidiaries
to any Person that has made an Alternative Proposal, (iii) approve, endorse or recommend (or publicly propose to approve, endorse
or recommend) any Alternative Proposal or (iv) enter into any letter of intent, term sheet, memorandum of understanding, merger
agreement, acquisition agreement, exchange agreement or any other agreement with respect to an Alternative Proposal. Each Stockholder
will, and will cause its Affiliates and its and their respective investment bankers, attorneys, accountants and other representatives
to, immediately cease and cause to be terminated any discussions or negotiations with any Person conducted heretofore with respect
to any Alternative Proposal. Nothing contained in this Section 3(e) shall prevent any Person affiliated with such Stockholder
who is a director or officer of the Company or designated by such Stockholder as a director of officer of the Company, when acting
in his capacity as a director or officer of the Company, from exercising his fiduciary duties as a director or officer of the Company
including taking any actions permitted under Section 7.3 of the Merger Agreement. 

 

(f)               
Company Warrants. 

 

(i)                
Each Stockholder hereby consents, and shall cause each of its Affiliates, if any, that holds an interest in any Company
Warrant to consent in writing, to the treatment of the Company Warrants pursuant to Article III of the Merger Agreement.

 

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(ii)              
Each Stockholder and the Company hereby agrees that each Company Warrant is hereby amended to permit and provide for the
treatment of such Company Warrant as provided in Article III of the Merger Agreement; provided, however, that such amendment shall
automatically become null and void and of no effect upon any termination of the Merger Agreement.

 

(iii)            
Each Stockholder hereby agrees not to exercise any Company Warrant prior to the record date for the Company Meeting.

 

4.                 
Assignment; No Third Party Beneficiaries. Except as provided herein, neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties without the prior written consent of the other parties
hereto, except that Parent may assign, it its sole discretion, any or all of its rights, interest and obligations hereunder to
any direct or indirect wholly owned Subsidiary of Parent. Subject to the preceding sentence, this Agreement will be binding upon,
inure to the benefit of and be enforceable by the parties hereto and their respective successors and assigns. Except as otherwise
expressly provided herein, this Agreement (including the documents and instruments referred to herein) is not intended to confer
upon any Person other than the parties hereto any rights or remedies hereunder.

 

5.                 
Termination. This Agreement and the covenants and agreements set forth in this Agreement shall automatically terminate
(without any further action of the parties) upon the earliest to occur of: (a) the termination of the Merger Agreement in accordance
with its terms; (b) the Effective Time; (c) the date of any modification, waiver or amendment to the Merger Agreement
effected without such Stockholder’s consent that (y) decreases the amount or changes the form of consideration payable to
all of the stockholders of the Company pursuant to the terms of the Merger Agreement as in effect on the date of this Agreement
or (z) otherwise materially adversely affects the interests of the stockholders of the Company; (d) the mutual written consent
of the parties hereto; and (e) the Outside Date. In the event of termination of this Agreement pursuant to this Section 5,
this Agreement shall become void and of no effect with no liability on the part of any party; provided, however,
that no such termination shall relieve any party from liability for any breach hereof prior to such termination.

 

6.                 
General Provisions.

 

(a)               
Amendments. This Agreement may not be amended except by an instrument in writing
signed on behalf of each of the parties hereto.

 

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(b)              
Notice. All notices and other communications hereunder shall be in writing and shall
be deemed given if delivered personally, telecopied (which is confirmed) or sent by overnight courier (providing proof of delivery)
at the following addresses (or at such other address for a party as specified by like notice, provided, that notices of a change
of address will be effective only upon receipt thereof):

 

 

	 	(i)                
If to the Stockholders, to:
	 	 
	 	Ares Management LLC 
	 	2000 Avenue of the Stars, Suite 1200  
	 	Los Angeles California. 90067 
	 	Attention:	Eric Waxman
	 	 	 
	 	With copies (which shall not constitute notice) to:
	 	 	 
	 	Latham & Watkins LLP 
	 	811 Main Street, Suite 3700 
	 	Houston, Texas, 77002 
	 	Attention: 	Michael Dillard
	 	 	John Greer 
	 	Facsimile: 	(713) 546-5401

 

	 	(ii)              
If to Parent, to:
	 	 
	 	c/o Noble Energy, Inc. 
	 	1001 Noble Energy Way 
	 	Houston, TX 77070 
	 	Attention: 	General Counsel
	 	 	 
	 	With copies (which shall not constitute notice) to:
	 	 	 
	 	Skadden, Arps, Slate, Meagher & Flom LLP 
	 	1000 Louisiana St., Suite 6800 
	 	Houston, TX 77002 
	 	Attention:	Frank E. Bayouth 
	 	 	Eric C. Otness 
	 	Facsimile:	(713) 655-5200

 

(c)               
Interpretation. When a reference is made in this Agreement to a Section, such reference
shall be to a Section to this Agreement unless otherwise indicated. The headings contained in this Agreement are for reference
purposes only and shall not affect in any way the meaning or interpretation of this Agreement. Wherever the words “include,”
“includes” or “including” are used in this Agreement, they shall be deemed to be followed by the words
“without limitation.” The phrases “the date of this Agreement”, “the date hereof” and terms
of similar import, unless the context otherwise requires, shall be deemed to refer to January 13 , 2017.

 

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(d)              
Counterparts. This Agreement may be executed in counterparts, all of which shall
be considered one and the same agreement and shall become effective when counterparts have been signed by each of the parties hereto
and delivered to the other parties hereto, it being understood that all parties hereto need not sign the same counterpart.

 

(e)               
Entire Agreement. This Agreement (including the documents and the instruments referred
to herein) constitutes the entire agreement and supersedes all prior agreements and understandings, both written and oral, among
the parties hereto with respect to the subject matter hereof.

 

(f)               
Governing Law. This Agreement shall be governed by, and construed in accordance with,
the laws of the State of Delaware regardless of the laws that might otherwise govern under applicable principles of conflicts of
law thereof or of any other jurisdiction.

 

(g)              
Severability. If any term, provision, covenant or restriction herein, or the application
thereof to any circumstance, shall, to any extent, be held by a court of competent jurisdiction to be invalid, void or unenforceable,
the remainder of the terms, provisions, covenants and restrictions herein and the application thereof to any other circumstances,
shall remain in full force and effect, shall not in any way be affected, impaired or invalidated, and shall be enforced to the
fullest extent permitted by law, and the parties hereto shall reasonably negotiate in good faith a substitute term or provision
that comes as close as possible to the invalidated and unenforceable term or provision, and that puts each party hereto in a position
as nearly comparable as possible to the position each such party would have been in but for the finding of invalidity or unenforceability,
while remaining valid and enforceable.

 

(h)              
Waiver. Any provisions of this Agreement may be waived at any time by the party that
is entitled to the benefits thereof. Any agreement on the part of a party hereto to any such extension or waiver shall be valid
only if set forth in a written instrument signed on behalf of such party, but such extension or waiver or failure to insist on
strict compliance with an obligation, covenant, agreement or condition shall not operate as a waiver of, or estoppel with respect
to, any subsequent or other failure.

 

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(i)                
Further Assurances. Each Stockholder will, from time to time, (i) at the request
of Parent take, or cause to be taken, all actions, and do, or cause to be done, and assist and cooperate with the other parties
hereto in doing, all things reasonably necessary, proper or advisable to carry out the intent and purposes of this Agreement and
(ii) execute and deliver, or cause to be executed and delivered, such additional or further consents, documents and other instruments
as Parent may reasonably request for the purpose of effectively carrying out the intent and purposes of this Agreement.

 

(j)                
Publicity. Except as otherwise required by law (including securities laws and regulations)
and the regulations of any national stock exchange, so long as this Agreement is in effect, the Stockholder shall not issue or
cause the publication of any press release or other public announcement with respect to, or otherwise make any public statement
concerning, the transactions contemplated by this Agreement or the Merger Agreement, without the consent of Parent, which consent
shall not be unreasonably withheld.

 

(k)              
Capitalized Terms. Capitalized terms used but not defined herein shall have the meanings
set forth in the Merger Agreement.

 

7.                 
Stockholder Capacity. Each Stockholder signs solely in
its capacity as the beneficial owner of its Subject Shares and nothing contained herein shall limit or affect any actions taken
by any officer, director, partner, Affiliate or representative of such Stockholder who is or becomes an officer or a director of
the Company in his or her capacity as an officer or director of the Company, and none of such actions in such capacity shall be
deemed to constitute a breach of this Agreement. Each Stockholder signs individually solely on behalf of itself and not on behalf
of any other Stockholder.

 

8.                 
Enforcement. The parties hereto agree that irreparable damage would occur in the event that any of the provisions
of this Agreement were not performed in accordance with their specific terms or were otherwise breached and that money damages
would not be a sufficient remedy of any such breach. It is accordingly agreed that, in addition to any other remedy to which they
are entitled at law or in equity, the parties hereto shall be entitled to specific performance and injunctive or other equitable
relief, without the necessity of proving the inadequacy of money damages. Notwithstanding the foregoing, Parent and Merger Sub
agree that with respect to any damage claim that might be brought against any Stockholder, any of its affiliates or the Company
under this Agreement, and without regard to whether such claim sounds in contract, tort or any other legal or equitable theory
of relief, that damages are limited to actual damages and expressly waive any right to recover special damages, including without
limitation, lost profits as well as any punitive or exemplary damages. In the event of any litigation over the terms of this Agreement,
the prevailing party in any such litigation shall be entitled to reasonable attorneys’ fees and costs incurred in connection
with such litigation. The parties hereto further agree that any action or proceeding relating to this Agreement or the transactions
contemplated hereby shall be heard and determined in the Court of Chancery of the State of Delaware (or, if the Court of Chancery
of the State of Delaware declines to accept jurisdiction over a particular matter, the Superior Court of the State of Delaware
(Complex Commercial Division) or, if subject matter jurisdiction over the matter that is the subject of the action or proceeding
is vested exclusively in the federal courts of the United States of America, the federal court of the United States of America
sitting in the district of Delaware) and any appellate court from any thereof. In addition, each of the parties hereto (a) consents
that each party hereto irrevocably submits to the exclusive jurisdiction and venue of such courts listed in this Section 8
in the event any dispute arises out of this Agreement or any of the transactions contemplated hereby, (b) agrees that each party
hereto irrevocably waives the defense of an inconvenient forum and all other defenses to venue in any such court in any such action
or proceeding, and (c) waives any right to trial by jury with respect to any claim or proceeding related to or arising out of this
Agreement or any of the transactions contemplated hereby.

 

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9.                 
Expense Reimbursement. The Company shall reimburse each Stockholder for the reasonable fees and out-of-pocket third
party expenses, including reasonable fees of attorneys, incurred by such Stockholder after the date hereof in connection with or
arising from the execution and delivery of, or performance under, this Agreement within ten (10) Business Days of receipt by the
Company of written request therefor from such Stockholder; provided, however, that the aggregate amount of reimbursements that
the Company shall be required to make hereunder to all Stockholders shall not exceed $750,000. For the avoidance of doubt, no failure
of the Company to perform its obligations hereunder shall limit or in any way excuse the obligations of any Stockholder under this
Agreement.

 

10.             
No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Parent or any other Person
any direct or indirect ownership or incidence of ownership of, or with respect to, any Subject Shares. Subject to the restrictions
and requirements set forth in this Agreement, all rights, ownership and economic benefits of and relating to the Subject Shares
shall remain vested in and belong to each Stockholder, and this Agreement shall not confer any right, power or authority upon Parent
or any other Person to direct the Stockholder in the voting of any of the Subject Shares (except as otherwise specifically provided
for herein).

 

[Remainder of the page
intentionally left blank]

 

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IN WITNESS WHEREOF, this Agreement has been
executed and delivered as of the date first written above.

 

	 	NOBLE ENERGY, INC.
	 	 	 
	 	By:	/s/Arnold J. Johnson
	 	 	Name: Arnold J. Johnson
	 	 	Title: Senior Vice President
	 	 	 
	 	Solely for Purposes of Section 3(f)(ii) and Section 9:
	 	 	 
	 	CLAYTON WILLIAMS ENERGY, INC.
	 	 	 
	 	By:	/s/ Mel G. Riggs, Jr.
	 	 	Name: Mel G. Riggs, Jr.
	 	 	Title: President
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A1, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A2, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A3, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A4, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A5, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A6, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A7, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A8, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A9, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A10, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV A11, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV ENERGY AIV B1, L.P.
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory
	 	 	 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

	 	AF IV (U), L.P.
	 	 	 
	 	By: AF IV Energy AIV GP, L.P., its general partner
	 	 	 
	 	By:	/s/ Naseem Sagati
	 	 	Name: Naseem Sagati
	 	 	Title: Authorized Signatory

  

 

[Signature Page to Project Cactus Support
Agreement]

 

    	 

    	 

    

Schedule A

 

	Name of Stockholder	No. Shares of 

Company 

Common Stock	No. Shares of 

Company 

Preferred Stock	No. Company 

Warrants
	AF IV Energy AIV A1, L.P.	339,543	161.62	103,971
	AF IV Energy AIV A2, L.P.	92,697	44.13	28,385
	AF IV Energy AIV A3, L.P.	229,063	109.05	70,141
	AF IV Energy AIV A4, L.P.	50,282	23.94	15,397
	AF IV Energy AIV A5, L.P.	335,212	159.57	102,645
	AF IV Energy AIV A6, L.P.	223,475	106.38	68,431
	AF IV Energy AIV A7, L.P.	251,407	119.68	76,984
	AF IV Energy AIV A8, L.P.	195,540	93.09	59,877
	AF IV Energy AIV A9, L.P.	156,432	74.47	47,901
	AF IV Energy AIV A10, L.P.	236,604	112.64	72,451
	AF IV Energy AIV A11, L.P.	335,212	159.57	102,646
	AF IV Energy AIV B1, L.P.	2,806,188	1,335.86	859,288
	AF IV (U), L.P.	841,850	1,000.00	643,247

 

    	A-1Exhibit 10.2

 

AGREEMENT NOT TO DISSENT

 

THIS AGREEMENT NOT TO DISSENT (this “Agreement”)
is dated as of January 13, 2017, by and among Clayton W. Williams, Jr., an individual (the “Stockholder”), Noble
Energy, Inc., a Delaware corporation (“Parent”), and, solely for purposes of Section 9 hereof, Clayton
Williams Energy, Inc., a Delaware corporation (the “Company”).

 

W I T N E S S E T H:

 

WHEREAS, concurrently with the execution and
delivery of this Agreement, Parent, the Company, Wild West Merger Sub, Inc., a Delaware corporation and an indirect wholly owned
subsidiary of Parent (“Merger Sub”), and NBL Permian LLC, a Delaware limited liability company and an indirect
wholly owned subsidiary of Parent, are entering into an Agreement and Plan of Merger, dated as of the date hereof (as the same
may be amended or supplemented, the “Merger Agreement”), providing that, among other things, upon the terms
and subject to the conditions set forth in the Merger Agreement, the Company will be merged with Merger Sub (the “Merger”),
and each outstanding share of common stock, par value $0.10 per share, of the Company (“Company Common Stock”)
will be converted into the Merger Consideration;

 

WHEREAS, the Stockholder beneficially owns
3,110,734 shares of Company Common Stock (such shares of Company Common Stock are referred to herein as the “Subject Shares”);

 

WHEREAS, as a condition to Parent to enter
into the Merger Agreement, Parent has required that the Stockholder enter into this Agreement;

 

WHEREAS, the Company has requested that the
Stockholder enter into this Agreement; and

 

WHEREAS, the execution and delivery of this
Agreement by the Stockholder, and the form and substance of this Agreement, have been reviewed by the Audit Committee of the Company’s
Board in consultation with outside legal counsel and recommended by the Committee for approval by the Board of Directors of the
Company, and have been approved by the Board of Directors of the Company.

 

    	 

    	 

    

NOW, THEREFORE, to induce Parent to enter
into, and in consideration of its entering into, the Merger Agreement, and in consideration of the promises and the representations,
warranties and agreements contained herein and therein, the parties, intending to be legally bound hereby, agree as follows:

 

1.                 
Representations and Warranties of the Stockholder. The Stockholder hereby represents and warrants to Parent as of
the date hereof as follows:

 

(a)               
Due Organization; Qualification. If the Stockholder is an entity, the Stockholder is duly formed under the laws of
its jurisdiction of organization and is validly existing and in good standing under the laws thereof.

 

(b)              
Authority; No Violation. If the Stockholder is an entity, the Stockholder has full organizational power and authority
to execute and deliver this Agreement and to perform its obligations hereunder. If the Stockholder is an entity, the execution
and delivery of this Agreement and the performance of its obligations hereunder have been duly and validly approved by the governing
authority of the Stockholder, and no other organizational proceedings on the part of the Stockholder are necessary to approve this
Agreement and to perform its obligations hereunder. This Agreement has been duly and validly executed and delivered by the Stockholder
and (assuming due authorization, execution and delivery by Parent) this Agreement constitutes a valid and binding obligation of
the Stockholder, enforceable against the Stockholder in accordance with its terms, except that such enforceability (i) may be limited
by bankruptcy, insolvency, moratorium or other similar laws affecting or relating to the enforcement of creditors’ rights
generally and (ii) is subject to general principles of equity and the discretion of the court before which any proceedings seeking
injunctive relief or specific performance may be brought. Neither the execution and delivery of this Agreement by the Stockholder,
nor the consummation by the Stockholder of the transactions contemplated hereby, nor compliance by the Stockholder with any of
the terms or provisions hereof, will (x) if the Stockholder is an entity, violate any provision of the governing documents of the
Stockholder, (y) violate any statute, code, ordinance, rule, regulation, judgment, order, writ, decree or injunction applicable
to the Stockholder, or any of its properties or assets, or (z) violate, conflict with, result in a breach of any provision of or
the loss of any benefit under, constitute a default (or an event which, with notice or lapse of time, or both, would constitute
a default) under, result in the termination of or a right of termination or cancellation under, accelerate the performance required
by, or result in the creation of any lien, claim, mortgage, encumbrance, pledge, deed of trust, security interest, equity or charge
of any kind (each, a “Lien”) upon any of the Subject Shares pursuant to any of the terms, conditions or provisions
of any note, bond, mortgage, indenture, deed of trust, license, lease, agreement or other instrument or obligation to which the
Stockholder is a party, or by which it or any of its properties or assets may be bound or affected.

 

    	2

    	 

    

(c)               
The Subject Shares. As of the date of this Agreement, the Stockholder is the beneficial owner of and has the sole
right to vote and dispose of the Subject Shares, free and clear of any Liens whatsoever, except for any Liens which arise hereunder.
None of the Subject Shares is subject to any voting trust or other agreement, arrangement or restriction, except as contemplated
by this Agreement. Without limiting the generality of the foregoing, (i) there are no agreements or arrangements of any kind, contingent
or otherwise, obligating the Stockholder to sell, transfer (including by tendering into any tender or exchange offer), assign,
grant a participation interest in, option, pledge, hypothecate or otherwise dispose of or encumber, including by operation of law
or otherwise (each, a “Transfer”), or cause to be Transferred, any of the Subject Shares, other
than a Transfer, such as a hedging or derivative transaction, with respect to which such Shareholder retains its Subject Shares
and the sole right to vote, dispose of and exercise dissenters’ rights with respect to its Subject Shares during the Applicable
Period, and (ii) no Person has any contractual or other right or obligation to purchase or otherwise acquire any of the Subject
Shares. Other than the Subject Shares and the Company Warrant, such Stockholder does not own any equity interests or other equity-based
securities in the Company or any of its Subsidiaries. 

 

(d)              
Absence of Litigation. There is no litigation, suit, claim, action, proceeding or investigation pending, or to the
knowledge of the Stockholder, threatened against the Stockholder, or any property or asset of the Stockholder, before any Governmental
Authority that seeks to delay or prevent the consummation of the transactions contemplated by this Agreement.

 

(e)               
No Consents Required. No consent of, or registration, declaration or filing with, any Person or Governmental Authority
is required to be obtained or made by or with respect to the Stockholder in connection with the execution, delivery and performance
of this Agreement and except for any applicable requirements and filings with the SEC, if any,
under the Exchange Act and except where the failure to obtain such consents, approvals, authorizations or permits, or to make such
filings or notifications, would not prevent or delay the performance by the Stockholder of the Stockholder’s obligations
under this Agreement in any material respect.

 

(f)               
Reliance. The Stockholder understands and acknowledges that Parent is entering into, and causing Merger Sub to enter
into, the Merger Agreement in reliance upon the Stockholder’s execution and delivery of this Agreement.

 

(g)              
Stockholder Has Adequate Information. The Stockholder is a sophisticated seller with respect to the Subject Shares
and has adequate information concerning the business and financial condition of Parent to make an informed decision regarding the
Merger and the transactions contemplated thereby and has independently and without reliance upon Parent and based on such information
as the Stockholder has deemed appropriate, made its own analysis and decision to enter into this Agreement. The Stockholder acknowledges
that Parent has not made and does not make any representation or warranty, whether express or implied, of any kind or character
except as expressly set forth in this Agreement. Notwithstanding the foregoing, and for the elimination of doubt, Stockholder is
not waiving and is expressly preserving any claims that might arise in connection with the Registration Statement contemplated
to be filed in connection with the Merger.

 

    	3

    	 

    

2.                 
Representations and Warranties of Parent. Parent hereby represents and warrants to the Stockholder as of the date
hereof as follows:

 

(a)               
Due Organization. Parent is a corporation duly incorporated under the laws of the State of Delaware and is validly
existing and in good standing under the laws thereof.

 

(b)              
Authority; No Violation. Parent has full corporate power and authority to execute and deliver this Agreement. The
execution and delivery of this Agreement have been duly and validly approved by the Board of Directors of Parent and no other corporate
proceedings on the part of Parent are necessary to approve this Agreement. This Agreement has been duly and validly executed and
delivered by Parent and (assuming due authorization, execution and delivery by the Stockholder) this Agreement constitutes a valid
and binding obligation of Parent, enforceable against Parent in accordance with its terms except that such enforceability (i) may
be limited by bankruptcy, insolvency, moratorium or other similar laws affecting or relating to the enforcement of creditors’
rights generally and (ii) is subject to general principles of equity and the discretion of the court before which any proceedings
seeking injunctive relief or specific performance may be brought. Neither the execution and delivery of this Agreement by Parent,
nor the consummation by Parent of the transactions contemplated hereby, nor compliance by Parent with any of the terms or provisions
hereof, will (x) violate any provision of the governing documents of Parent or the certificate of incorporation, by-laws or similar
governing documents of any of Parent’s Subsidiaries, (y) violate any statute, code, ordinance, rule, regulation, judgment,
order, writ, decree or injunction applicable to the Parent or any of Parent’s Subsidiaries, or any of their respective properties
or assets, or (z) violate, conflict with, result in a breach of any provision of or the loss of any benefit under, constitute a
default (or an event which, with notice or lapse of time, or both, would constitute a default) under, result in the termination
of or a right of termination or cancellation under, accelerate the performance required by, or result in the creation of any Lien
upon any of the respective properties or assets of Parent or any of Parent’s Subsidiaries under, any of the terms, conditions
or provisions of any note, bond, mortgage, indenture, deed of trust, license, lease, agreement or other instrument or obligation
to which Parent or any of Parent’s Subsidiaries is a party, or by which they or any of their respective properties or assets
may be bound or affected.

 

    	4

    	 

    

3.                 
Covenants of the Stockholder. The Stockholder agrees as follows; provided that all of the following covenants shall
apply solely to actions taken by the Stockholder in its capacity as a stockholder of the Company:

 

(a)               
Dissenters’ Rights. The Stockholder hereby waives, and agrees not to exercise or assert, if applicable, and
to cause any record holder of any Subject Shares to waive and not to exercise or assert, if applicable, any appraisal rights under
Section 262 of the DGCL in connection with the Merger.

 

(b)              
No Transfers. Except as provided in the last sentence of this Section 3(b), the Stockholder agrees not to, and to
cause any record holder of any Subject Shares, not to, in any such case directly or indirectly, during the Applicable Period (i)
Transfer or enter into any agreement, option or other arrangement (including any profit sharing arrangement) with respect to the
Transfer of, any Subject Shares (or any interest therein) to any Person, other than the exchange of the Subject Shares for Merger
Consideration in accordance with the Merger Agreement, or (ii) grant any proxies, or deposit any Subject Shares into any voting
trust or enter into any voting arrangement, whether by proxy, voting agreement or otherwise, with respect to the Subject Shares,
other than pursuant to this Agreement. Subject to the last sentence of this Section 3(b), the Stockholder further agrees not to
commit or agree to take, and to cause any record holder of any Subject Shares not to commit or agree to take, any of the foregoing
actions during the Applicable Period. Notwithstanding the foregoing, the Stockholder shall have the right to Transfer its Subject
Shares to an Affiliate if and only if such Affiliate shall have agreed in writing, in a manner acceptable in form and substance
to Parent, (i) to accept such Subject Shares subject to the terms and conditions of this Agreement, and (ii) to be bound by this
Agreement as if it were “the Stockholder” for all purposes of this Agreement; provided, however, that no such transfer
shall relieve the Stockholder from its obligations under this Agreement with respect to any Subject Shares.

 

    	5

    	 

    

(c)               
Agreement to Vote Subject Shares Against Alternative Transactions. During the Applicable Period (as defined below),
at any meeting of the stockholders of the Company, however called, or at any postponement or adjournment thereof, or in connection
with any written consent of the stockholders of the Company or in any other circumstance upon which a vote, consent or other approval
of all or some of the stockholders of the Company is sought, the Stockholder shall, and shall cause any holder of record of the
Subject Shares on any applicable record date to, vote or, if stockholders are requested to vote their shares through the execution
of an action by written consent in lieu of such meeting of stockholders of the Company, execute a written consent or consents with
respect to, all of the Subject Shares: (i) against any merger agreement or merger (other than the Merger Agreement and the Merger),
consolidation, combination, sale or transfer of a material amount of assets, reorganization, recapitalization, dissolution, liquidation
or winding up of or by the Company or any of its Subsidiaries or any Alternative Proposal, and (ii) against any amendment of the
Company’s certificate of incorporation or by-laws or other proposal or transaction involving the Company or any of its Subsidiaries,
which amendment or other proposal or transaction would in any manner delay, impede, frustrate, prevent or nullify the Merger, the
Merger Agreement or any of the transactions contemplated by the Merger Agreement or change in any manner the voting rights of any
outstanding class of capital stock of the Company. During the Applicable Period, the Stockholder shall retain at all times the
right to vote all of the Subject Shares in the Stockholder’s sole discretion and without any other limitation on those matters
other than those set forth in this Section 3(c) that are at any time or from time to time presented for consideration to the Company’s
stockholders generally. During the Applicable Period, in the event that any meeting of the stockholders of the Company is held,
the Stockholder shall (or shall cause the holder of record on any applicable record date to) appear at such meeting or otherwise
cause all of the Subject Shares to be counted as present thereat for purposes of establishing a quorum. During the Applicable Period,
the Stockholder further agrees not to commit or agree, and to cause any record holder of any Subject Shares not to commit or agree,
to take any action inconsistent with the foregoing during the Applicable Period. “Applicable Period” means the
period from and including the date of this Agreement to and including the date of the termination of the Merger Agreement; provided,
however, that if the Merger Agreement is terminated by Parent or by the Company pursuant to Section 9.1(f) of the Merger
Agreement or by Parent pursuant to Section 9.1(c) of the Merger Agreement, the Applicable Period shall extend through and including
the date that is 180 days following such termination.

 

(d)              
Adjustment to Subject Shares. In case of a stock dividend or distribution, or any change in the Company Common Stock
by reason of any stock dividend or distribution, split-up, recapitalization, combination, exchange of shares or the like, the term
“Subject Shares” shall be deemed to refer to and include the Subject Shares as well as all such stock dividends and
distributions and any securities into which or for which any or all of the Subject Shares may be changed or exchanged or which
are received in such transaction.

 

    	6

    	 

    

(e)               
Non-Solicitation. Except to the extent that the Company or the Company Board is permitted
to do so under the Merger Agreement, but subject to any limitations imposed on the Company or the Company Board under the Merger
Agreement, the Stockholder agrees, solely in its capacity as a stockholder of the Company,
that it shall not, and shall cause its Affiliates and its and their respective agents and representatives not to, directly or indirectly,
(i) initiate, solicit, knowingly encourage or knowingly facilitate (including by way of furnishing information) any Alternative
Proposal, (ii) participate or engage in any discussions or negotiations with, or disclose any non-public information or data relating
to the Company or any of its Subsidiaries to any Person that has made an Alternative Proposal, (iii) approve, endorse or recommend
(or publicly propose to approve, endorse or recommend) any Alternative Proposal or (iv) enter into any letter of intent, term sheet,
memorandum of understanding, merger agreement, acquisition agreement, exchange agreement or any other agreement with respect to
an Alternative Proposal. Each Stockholder will, and will cause its Affiliates and its and their respective investment bankers,
attorneys, accountants and other representatives to, immediately cease and cause to be terminated any discussions or negotiations
with any Person conducted heretofore with respect to any Alternative Proposal. Nothing contained in this Section 3(e) shall
prevent any Person affiliated with the Stockholder who is a director or officer of the Company
or designated by the Stockholder as a director of officer of the Company, when acting in
his capacity as a director or officer of the Company, from exercising his fiduciary duties as a director or officer of the Company
including taking any actions permitted under Section 7.3 of the Merger Agreement. 

 

4.                 
Assignment; No Third Party Beneficiaries. Except as provided herein, neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties without the prior written consent of the other parties
hereto, except that Parent may assign, it its sole discretion, any or all of its rights, interest and obligations hereunder to
any direct or indirect wholly owned Subsidiary of Parent. Subject to the preceding sentence, this Agreement will be binding upon,
inure to the benefit of and be enforceable by the parties hereto and their respective successors and assigns. Except as otherwise
expressly provided herein, this Agreement (including the documents and instruments referred to herein) is not intended to confer
upon any Person other than the parties hereto any rights or remedies hereunder; provided, however, that the Company is an intended
third party beneficiary of the agreement of the Stockholder set forth in Section 3(a) hereof.

 

5.                 
Termination. This Agreement and the covenants and agreements set forth in this Agreement shall automatically terminate
(without any further action of the parties) upon the earliest to occur of: (a) the expiration of the Applicable Period; (b) the
Effective Time; (c) the date of any modification, waiver or amendment to the Merger Agreement effected without the Stockholder’s
consent that (y) decreases the amount or changes the form of consideration payable to all of the stockholders of the Company pursuant
to the terms of the Merger Agreement as in effect on the date of this Agreement or (z) otherwise materially adversely affects the
interests of the stockholders of the Company; and (d) the mutual written consent of the parties hereto. In the event of termination
of this Agreement pursuant to this Section 5, this Agreement shall become void and of no effect with no liability on the
part of any party; provided, however, that no such termination shall relieve any party from liability for any
breach hereof prior to such termination

 

6.                 
General Provisions.

 

(a)               
Amendments. This Agreement may not be amended except by an instrument in writing signed on behalf of each of the
parties hereto.

 

    	7

    	 

    

(b)              
Notice. All notices and other communications hereunder shall be in writing and shall be deemed given if delivered
personally, telecopied (which is confirmed) or sent by overnight courier (providing proof of delivery) at the following addresses
(or at such other address for a party as specified by like notice, provided, that notices of a change of address will be effective
only upon receipt thereof):

 

 

	 	(i)                
If to the Stockholder, to:
	 	 
	 	c/o Clayton Williams Energy, Inc.
	 	6 Desta Drive, Suite 6500
	 	Midland, TX 79705
	 	Attention:  	General Counsel
	 	Facsimile:  	432-688-3468
	 	 	 
	 	With copies (which shall not constitute notice) to:
	 	 	 
	 	Latham & Watkins LLP
	 	811 Main Street, Suite 3700
	 	Houston, Texas, 77002
	 	Attention:	Michael Dillard
	 	 	John Greer
	 	Facsimile:  	(713) 546-5401
	 	 	 
	 	(ii)              
If to Parent, to:
	 	 
	 	c/o Noble Energy, Inc.
	 	1001 Noble Energy Way
	 	Houston, TX 77070
	 	Attention:  	General Counsel
	 	 	 
	 	With copies (which shall not constitute notice) to:
	 	 	 
	 	Skadden, Arps, Slate, Meagher & Flom LLP
	 	1000 Louisiana St., Suite 6800
	 	Houston, TX 77002
	 	Attention:	Frank E. Bayouth
	 	 	Eric C. Otness
	 	Facsimile:	(713) 655-5200

  

    	8

    	 

    

(c)               
Interpretation. When a reference is made in this Agreement to a Section, such reference shall be to a Section to
this Agreement unless otherwise indicated. The headings contained in this Agreement are for reference purposes only and shall not
affect in any way the meaning or interpretation of this Agreement. Wherever the words “include,” “includes”
or “including” are used in this Agreement, they shall be deemed to be followed by the words “without limitation.”
The phrases “the date of this Agreement”, “the date hereof” and terms of similar import, unless the context
otherwise requires, shall be deemed to refer to January 13 , 2017.

 

(d)              
Counterparts. This Agreement may be executed in counterparts, all of which shall be considered one and the same agreement
and shall become effective when counterparts have been signed by each of the parties hereto and delivered to the other parties
hereto, it being understood that all parties hereto need not sign the same counterpart.

 

(e)               
Entire Agreement. This Agreement (including the documents and the instruments referred to herein) constitutes the
entire agreement and supersedes all prior agreements and understandings, both written and oral, among the parties hereto with respect
to the subject matter hereof.

 

(f)               
Governing Law. This Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware
regardless of the laws that might otherwise govern under applicable principles of conflicts of law thereof or of any other jurisdiction.

 

(g)              
Severability. If any term, provision, covenant or restriction herein, or the application thereof to any circumstance,
shall, to any extent, be held by a court of competent jurisdiction to be invalid, void or unenforceable, the remainder of the terms,
provisions, covenants and restrictions herein and the application thereof to any other circumstances, shall remain in full force
and effect, shall not in any way be affected, impaired or invalidated, and shall be enforced to the fullest extent permitted by
law, and the parties hereto shall reasonably negotiate in good faith a substitute term or provision that comes as close as possible
to the invalidated and unenforceable term or provision, and that puts each party hereto in a position as nearly comparable as possible
to the position each such party would have been in but for the finding of invalidity or unenforceability, while remaining valid
and enforceable.

 

(h)              
Waiver. Any provisions of this Agreement may be waived at any time by the party that is entitled to the benefits
thereof. Any agreement on the part of a party hereto to any such extension or waiver shall be valid only if set forth in a written
instrument signed on behalf of such party, but such extension or waiver or failure to insist on strict compliance with an obligation,
covenant, agreement or condition shall not operate as a waiver of, or estoppel with respect to, any subsequent or other failure.

 

    	9

    	 

    

(i)                
Further Assurances. The Stockholder will, from time to time, (i) at the request of Parent take, or cause to be taken,
all actions, and do, or cause to be done, and assist and cooperate with the other parties hereto in doing, all things reasonably
necessary, proper or advisable to carry out the intent and purposes of this Agreement and (ii) execute and deliver, or cause to
be executed and delivered, such additional or further consents, documents and other instruments as Parent may reasonably request
for the purpose of effectively carrying out the intent and purposes of this Agreement.

 

(j)                
Publicity. Except as otherwise required by law (including securities laws and regulations)
and the regulations of any national stock exchange, so long as this Agreement is in effect, the Stockholder shall not issue
or cause the publication of any press release or other public announcement with respect to, or otherwise make any public statement
concerning, the transactions contemplated by this Agreement or the Merger Agreement, without the consent of Parent, which consent
shall not be unreasonably withheld.

 

(k)              
Capitalized Terms. Capitalized terms used but not defined herein shall have the meanings set forth in the Merger
Agreement.

 

7.                 
Stockholder Capacity. The Stockholder signs solely in
its capacity as the beneficial owner of the Subject Shares and nothing contained herein shall limit or affect any actions taken
by any officer, director, partner, Affiliate or representative of the Stockholder who is or becomes an officer or a director of
the Company in his or her capacity as an officer or director of the Company, and none of such actions in such capacity shall be
deemed to constitute a breach of this Agreement.

 

8.                 
Enforcement. The parties hereto agree that irreparable damage would occur in the event that any of the provisions
of this Agreement were not performed in accordance with their specific terms or were otherwise breached and that money damages
would not be a sufficient remedy of any such breach. It is accordingly agreed that, in addition to any other remedy to which they
are entitled at law or in equity, the parties hereto shall be entitled to specific performance and injunctive or other equitable
relief, without the necessity of proving the inadequacy of money damages. Notwithstanding the foregoing, Parent and Merger Sub
agree that with respect to any damage claim that might be brought against the Stockholder or any of its affiliates under this Agreement,
and without regard to whether such claim sounds in contract, tort or any other legal or equitable theory of relief, that damages
are limited to actual damages and expressly waive any right to recover special damages, including without limitation, lost profits
as well as any punitive or exemplary damages. In the event of any litigation over the terms of this Agreement, the prevailing party
in any such litigation shall be entitled to reasonable attorneys’ fees and costs incurred in connection with such litigation.
The parties hereto further agree that any action or proceeding relating to this Agreement or the transactions contemplated hereby
shall be heard and determined in the Court of Chancery of the State of Delaware (or, if the Court of Chancery of the State of Delaware
declines to accept jurisdiction over a particular matter, the Superior Court of the State of Delaware (Complex Commercial Division)
or, if subject matter jurisdiction over the matter that is the subject of the action or proceeding is vested exclusively in the
federal courts of the United States of America, the federal court of the United States of America sitting in the district of Delaware)
and any appellate court from any thereof. In addition, each of the parties hereto (a) consents that each party hereto irrevocably
submits to the exclusive jurisdiction and venue of such courts listed in this Section 8 in the event any dispute arises
out of this Agreement or any of the transactions contemplated hereby, (b) agrees that each party hereto irrevocably waives the
defense of an inconvenient forum and all other defenses to venue in any such court in any such action or proceeding, and (c) waives
any right to trial by jury with respect to any claim or proceeding related to or arising out of this Agreement or any of the transactions
contemplated hereby.

 

    	10

    	 

    

9.                 
Expense Reimbursement. The Company shall reimburse the Stockholder for the reasonable fees and out-of-pocket third
party expenses, including reasonable fees of attorneys, incurred by the Stockholder after the date hereof in connection with or
arising from the execution and delivery of, or performance under, this Agreement within ten (10) Business Days of the receipt by
the Company of written request therefor from the Stockholder; provided, however, that the aggregate amount of reimbursements that
the Company shall be required to make hereunder to the Stockholder shall not exceed $750,000. For the avoidance of doubt, no failure
of the Company to perform its obligations hereunder shall limit or in any way excuse the obligations of the Stockholder under this
Agreement.

 

10.             
No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Parent or any other Person
any direct or indirect ownership or incidence of ownership of, or with respect to, any Subject Shares. Subject to the restrictions
and requirements set forth in this Agreement, all rights, ownership and economic benefits of and relating to the Subject Shares
shall remain vested in and belong to the Stockholder, and this Agreement shall not confer any right, power or authority upon Parent
or any other Person to direct the Stockholder in the voting of any of the Subject Shares (except as otherwise specifically provided
for herein).

 

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intentionally left blank]

 

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IN WITNESS WHEREOF, this Agreement has been
executed and delivered as of the date first written above. 

 

	 	NOBLE ENERGY, INC.
	 	 	 
	 	By:	/s/Arnold J. Johnson
	 	 	Name: Arnold J. Johnson
	 	 	Title: Senior Vice President
	 	 	 
	 	CLAYTON W. WILLIAMS, JR.
	 	 	 
	 	By:	/s/ Clayton W. Williams, Jr.
	 	 	Clayton W. Williams, Jr.
	 	 	 
	 	Solely for Purposes of Section 9:
	 	 	 
	 	CLAYTON WILLIAMS ENERGY, INC.
	 	 	 
	 	By:	/s/ Mel G. Riggs, Jr.
	 	 	Name: Mel G. Riggs, Jr.
	 	 	Title: President

 

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