Document:

EX-10.4

 Exhibit 10.4 
 JOINDER 
 TO 

INTERCREDITOR AGREEMENT 
 THIS JOINDER (this “Joinder”), dated as of January 15, 2014, to the Intercreditor Agreement dated as of October 15, 2007 attached hereto as
Exhibit A (the “Agreement”), is made by and between JPMorgan Chase Bank, N.A., as collateral agent (the “Collateral Agent”), and each of the undersigned holders of the 2014 Notes (as defined below)
(collectively, the “2014 Noteholders”). Capitalized terms used herein but not defined herein shall have the meanings set forth in the Agreement. 
 WHEREAS, pursuant to that certain Note Purchase Agreement dated as of November 25, 2013 among the Company, the Parent and the purchasers named therein (the “2013 Note
Agreement”), the Company has issued and sold, on the date hereof, its 3.75% Senior Secured Notes due January 15, 2021 in the aggregate principal amount of $150,000,000 (the “2014 Notes”), which 2014 Notes are
guaranteed pursuant to (a) that certain Parent Guaranty dated as of November 15, 2013 by the Parent, as guarantor, in favor of the holders from time to time of the 2014 Notes and (b) that certain Subsidiary Guaranty dated as of
November 15, 2013 by the Subsidiaries named therein, each as a guarantor, in favor of the holders from time to time of the 2014 Notes; and 
 WHEREAS, the 2014 Noteholders desire to join the Agreement as a “Secured Party” thereunder and, upon the execution and delivery of this Joinder, the 2014 Holders shall be
“Additional Holders” and “Secured Parties” under the Agreement, (b) the 2013 Note Agreement shall be an “Eligible Additional Senior Secured Document” under the Agreement and (c) the 2014 Notes shall be
“Eligible Additional Senior Secured Indebtedness” under the Agreement. 
 NOW,
THEREFORE, in consideration of the premises and the mutual agreements herein contained, the Collateral Agent and the 2014 Noteholders hereby agree as follows: 
 1. Each 2014 Noteholder hereby acknowledges that it has received and reviewed a copy of the Agreement and agrees that it shall be fully bound by, and subject to, all of the provisions of the Agreement
with all the rights, benefits and obligations of a Secured Party thereunder. 
 2. This Joinder may be executed in two or more
counterparts, each of which shall constitute an original but all of which when taken together shall constitute one contract. 

3. This Joinder shall be governed by and construed in accordance with the laws of the State of New York without giving effect to any
choice or conflict of law provision or rule (whether of the State of New York or any other jurisdiction) that would cause the application of laws of any other jurisdiction. 

  

[Signature Pages to Follow] 

 IN WITNESS WHEREOF, the Collateral Agent and
each 2014 Noteholder has caused this Joinder to be duly executed by its authorized officers as of the day and year first above written. 
  

			
	Collateral Agent:
	
	 JPMORGAN CHASE BANK, N.A., as Collateral Agent

		
	By	 	 
		 	Name:
		 	Title:

  
 [Signature
page to Joinder to Intercreditor Agreement] 

 
					
	2014 Noteholders:
	
	 THE PRUDENTIAL INSURANCE COMPANY OF
AMERICA

		
	By:	 	 
		 	Vice President
	
	 PRUDENTIAL RETIREMENT INSURANCE AND
ANNUITY COMPANY

		
	By:	 	Prudential Investment Management, Inc.
		 	 (as Investment Manager)

			
		 	By:	 	 
		 		 	Vice President
	
	 THE PRUDENTIAL LIFE INSURANCE COMPANY,
LTD.

		
	 By:
	 	Prudential Investment Management (Japan), Inc.
		 	(as Investment Manager)
		
	 By:
	 	Prudential Investment Management, Inc.
		 	(as Sub-Adviser)
			
		 	By:	 	 
		 		 	Vice President

  
 [Signature
page to Joinder to Intercreditor Agreement] 

 
					
	 FARMERS INSURANCE EXCHANGE

MID CENTURY INSURANCE COMPANY
 FARMERS NEW WORLD LIFE INSURANCE COMPANY
 PHYSICIANS MUTUAL INSURANCE COMPANY

		
	 By:
	 	Prudential Private Placement Investors, L.P.
		 	 (as Investment Advisor)

		
	By:	 	Prudential Private Placement Investors, Inc.
		 	(as its General Partner)
			
		 	By:	 	 
		 		 	Vice President

  
 [Signature
page to Joinder to Intercreditor Agreement] 

 
			
	METLIFE INSURANCE COMPANY OF CONNECTICUT
	 by Metropolitan Life Insurance Company, its Investment Manager

	
	METROPOLITAN LIFE INSURANCE COMPANY
		
	By:	 	 
		 	Name:
		 	Title:

  
 [Signature
page to Joinder to Intercreditor Agreement] 

 
			
	 MASSACHUSETTS MUTUAL LIFE INSURANCE
COMPANY

		
	By:	 	Babson Capital Management LLC as Investment Adviser
		
	By:	 	 
		 	Name:
		 	Title:
	
	MASSMUTUAL ASIA LIMITED
		
	By:	 	Babson Capital Management LLC as Investment Adviser
		
	By:	 	 
		 	Name:
		 	Title:

  
 [Signature
page to Joinder to Intercreditor Agreement] 

 
			
	 WOODMEN OF THE WORLD LIFE
INSURANCE SOCIETY

		
	By:	 	 
		 	Name:
		 	Title:
		
	By:	 	 
		 	Name:
		 	Title:

  
 [Signature
page to Joinder to Intercreditor Agreement] 

 
			
	Acknowledged by:
	
	UNITED STATIONERS SUPPLY CO.
		
	By	 	 
		 	Name: Robert J. Kelderhouse
		 	Title: Vice President and Treasurer
	
	UNITED STATIONERS INC.
		
	By	 	 
		 	Name: Robert J. Kelderhouse
		 	Title: Vice President and Treasurer

  
 [Signature
page to Joinder to Intercreditor Agreement] 

 EXHIBIT A 

INTERCREDITOR AGREEMENTEX-10.1

 Exhibit 10.1 

SEVERANCE AGREEMENT 
 This
SEVERANCE AGREEMENT (this “Agreement”), made and entered into this 18th of February, 2014 (“Effective Date”) by and between WPX Energy, Inc. its subsidiaries and affiliates (collectively the
“Company”), and Neal Buck (the “Executive”), sets forth the terms and understandings regarding Executive’s separation from the Company. 

WHEREAS, the Executive currently serves as Senior Vice President – Business Development and Land; and 

WHEREAS, the Executive’s position with the Company is to be eliminated and his employment terminated; and 

WHEREAS, the Executive and the Company wish to settle their mutual rights and obligations arising in connection with the Executive’s
service with the Company and the Executive’s separation from such service; and 
 WHEREAS, the Executive and the Company agree to the
following payments, benefits and other terms and conditions in connection with the Executive’s separation from service with the Company; and 

WHEREAS, in consideration of his rights and benefits under this Agreement, the Executive has agreed to enter into certain covenants for the
benefit of the Company as set forth herein. 
 NOW, THEREFORE, in consideration of the mutual covenants and promises herein contained,
including the restrictive covenants, the Company and the Executive hereby agree as follows: 
 1. Separation from Service 

(a) Position Elimination. Executive’s position shall be eliminated on May 2, 2014 (the “Termination Date”).
Effective on the Termination Date, the Executive hereby resigns from any and all officer and director positions he may have with the Company and its subsidiaries and affiliates. The Executive shall promptly execute any additional documentation the
Company may request to reflect such resignations. 
 (b) Transition Period. For the period from the Effective Date through the
Termination Date (such period, the “Transition Period”), the Executive shall continue as an employee of the Company and shall perform such duties and responsibilities as shall be reasonably requested by the Board and the Chief
Executive Officer (CEO”) of the Company, including as necessary to effect a smooth and effective transition of his duties and responsibilities. During the Transition Period, the Executive shall remain subject to all applicable Company
policies and procedures, including without limitation the Company’s securities trading policies for officers and directors. 

  
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 2. Compensation 

(a) Base Salary through Termination Date. The Executive shall be entitled to continue to receive his current base annual salary through
the Termination Date, which shall be paid in installments in accordance with the Company’s normal payroll practices. Executive shall not receive a salary increase in 2014. 

(b) Annual Incentive Plan. The Executive shall be eligible to receive an annual bonus for the 2013 fiscal year under the Company’s
Annual Incentive Program (“AIP”), based solely upon the Executive’s target level of participation and the determination of the Compensation Committee of the Board of the levels of achievement, consistent with other executive
officers generally, under the applicable AIP performance goals for 2013. Any such bonus payable to the Executive under the AIP shall be paid at the same time and subject to the same terms and conditions as bonuses are paid generally under the AIP to
other senior management employees of the Company. Executive shall not be eligible to receive an AIP payment related to the 2014 AIP. 
 (c)
Employee Benefits. Until the Termination Date, the Executive shall continue to be entitled to participate as an active employee in those employee benefit plans and programs in which he currently participates, subject to the terms and
conditions of such plans. Effective as of the Termination Date, except as expressly provided herein, the Executive’s active participation in such plans shall cease, and the Executive shall continue to have all rights to accrued and vested
benefits under such plans in accordance with their terms. The Executive shall continue to be eligible for the “non-matching contribution” to the Company’s savings plans attributable to the 2014 plan year on a prorated basis. 

3. Separation Payment Opportunity, Benefits, and Status 

(a) Separation Payment Opportunity. 

(i) Separation Payment Amount. Executive shall have the opportunity to receive a payment, the amount of which shall be determined at
the sole discretion of Mr. James Bender, who is serving as CEO at the Effective Date, or by the Chairperson of Company’s Compensation Committee in consultation with Mr. Bender in the event Mr. Bender is no longer an employee of
Company, of up to Two Hundred Fifty Thousand Dollars ($250,000.00) (“Separation Payment”) for Executive’s satisfactory efforts during the Transition Period related to: 

 

	 	1.	Timely and proficient performance of all duties assigned to Executive including those related to Company’s benchmark cost analysis project as supported by The Hackett Group; and 

 

	 	2.	Transition of Executive’s duties, responsibilities and related knowledge at times and to designees specified by the CEO; and 

 

	 	3.	The extent of progress with respect to the sale of the Company’s interest in Apco Oil and Gas International Inc. 

(ii) Time of Severance Payment. Subject to Section 21 herein, payment of any Separation Payment amount hereunder shall be made
within thirty (30) days following the Termination Date. 

  
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 (b) Release of Claims. The rights, payments and benefits to be provided to the Executive
under this Agreement are subject to the Executive’s execution and delivery to the Company and non-revocation of an effective general release and waiver of claims in the form attached hereto as Exhibit A (the “Release”),
to be executed and delivered not earlier than the Termination Date. 
 4. Accrued Rights. The Company shall pay and provide to the
Executive in accordance with its customary practices: (i) all base salary earned but not yet paid through the Termination Date, (ii) reimbursement for any and all business expenses properly incurred prior to the Termination Date, payable
in accordance with and subject to the terms of the Company’s reimbursement policy and (iii) any employee benefits required to be provided to the Executive pursuant to the terms of the Company’s employee benefit plans and as required
by applicable law. 
 4. Outstanding Equity Awards 

(a) Company’s 2014 Equity Program. Executive shall not receive an equity grant in 2014. 

(b) Stock Options. All outstanding stock options to purchase shares of the Company’s common stock held by the Executive as of the
Termination Date (the “Options”) shall be governed by the terms of the Company’s applicable equity incentive compensation plans (the “Equity Plans”) and award agreements pursuant to which such awards were
issued to the Executive, with the Termination Date constituting the date of the Executive’s termination of service for purposes of such grants. In accordance with such terms applicable to retirement eligible employees, all such Options vest and
are exercisable as of the Termination Date and shall continue to be exercisable for five (5) years from the Termination Date (or if earlier, the expiration date of the option term), subject to the terms and conditions as provided in the Equity
Plans and the applicable award agreements, the terms of which shall govern and control. 
 (c) Time-Based RSUs. All outstanding
time-based restricted stock units with respect to shares of the Company’s common stock held by the Executive as of the Termination Date (the “Time-Based RSUs”) shall be governed by the terms of the applicable Equity Plans and
award agreements pursuant to which such awards were issued to the Executive, with the Termination Date constituting the date of the Executive’s “Separation from Service” (and not as a “retirement”) for purposes of such
grants. In accordance with such terms, and in connection with the Executive entering into this Agreement, (i) all Time-Based RSUs shall become fully vested on the Termination Date, and (ii) payment shall be made to the Executive within
five (5) days following the date that is six (6) months following the Termination Date, each as in accordance with the terms of the applicable Equity Plans and award agreements, which shall govern and control. 

(d) Performance Based RSUs. All outstanding performance-based restricted stock units with respect to shares of the Company’s
common stock held by the Executive as of the 

  
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Termination Date (the “Performance-Based RSUs”) shall be governed by the terms of the applicable Equity Plans and award agreements pursuant to which such awards were issued to
the Executive, with the Termination Date constituting the date of the Executive’s “Separation from Service” for purposes of such grants. In accordance with such terms, and in connection with the Executive entering into this Agreement,
(i) the Performance-Based RSUs shall become vested on the date that the Company’s Compensation Committee certifies that the performance measures for the applicable performance period are satisfied, on a pro-rata basis based upon the
portion of the applicable vesting period that has lapsed through the Termination Date, with the Executive’s right to any payment subject to the satisfaction of the applicable performance measures under the awards for the full performance
period, and (ii) any such payment shall be made to the Executive at the time periods specified therein, each as in accordance with the terms of the applicable Equity Plans and award agreements, which shall govern and control. 

6. No Mitigation. The Executive shall not have any duty to mitigate the amounts payable under this Agreement by seeking new employment
or self-employment following separation from service. Except as specifically otherwise provided in this Agreement, all amounts payable pursuant to this Agreement shall be paid without reduction regardless of any amounts of salary, compensation or
other amounts which may be paid or payable to the Executive as the result of the Executive’s employment by another employer or self-employment. 

7. Indemnification. The Executive (i) shall be indemnified and held harmless by the Company on the same terms as other executive
officers and directors to the greatest extent permitted under applicable law as the same now exists or may hereafter be amended and the Company’s by-laws as such exist on the Termination Date, or such greater rights that may be provided by
amendment to such by-laws from time to time, if the Executive was, is or is threatened to be made to a party to any pending, completed or threatened action, suit, arbitration, alternative dispute resolution mechanism, investigation, administrative
hearing or any other proceeding whether civil, criminal, administrative or investigative, and whether formal or informal, by reason of the fact that the Executive is or was, or had agreed to become, a director, officer, employee, agent or fiduciary
of the Company or any other entity which the Executive is or was serving at the request of the Company, against all expenses (including reasonable attorneys’ fees) and all claims, damages, liabilities and losses incurred or suffered by the
Executive or to which the Executive may become subject for any reason, and (ii) shall be entitled to advancement of any such indemnifiable expenses in accordance with the Company’s by-laws as such exist on the Termination Date, or such
greater rights that may be provided by amendment to such by-laws from time to time. 
 8. Directors’ and Officers’
Insurance. For a period of seventy-two (72) months after the Termination Date (or any known longer applicable statute of limitations period), the Executive shall be entitled to coverage under a directors’ and officers’ liability
insurance policy in an amount no less than, and on the same terms as those provided to other executive officers and directors of the Company. 

9. Restrictive Covenants 

(a) Confidential Information. The Executive acknowledges that in the course of 

  
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performing services for the Company and its affiliates, the Executive may have obtained information, observations and data while employed by the Company (including but not limited to information
concerning current or prospective exploration and development activities, information concerning business strategies or plans, financial information relating to the business of the Company or its subsidiaries and affiliates, accounts, customers,
vendors, employees and other affairs) that is not otherwise in the public domain (collectively, “Confidential Information”). The Executive recognizes that all such Confidential Information is the sole and exclusive property of the
Company and its affiliates or of third parties to which the Company or an affiliate owes a duty of confidentiality, that it is the Company’s policy to safeguard and keep confidential all such Confidential Information, and that disclosure of
Confidential Information to an unauthorized third party would cause irreparable damage to the Company and its affiliates. The Executive agrees that, except as required by the duties of the Executive’s employment with the Company or any of its
affiliates and except in connection with enforcing the Executive’s rights under this Agreement or if compelled by a court or governmental agency, in each case provided that prior written notice is given to the Company, the Executive will not,
without the written consent of the Company, willfully disseminate or otherwise disclose, directly or indirectly, any Confidential Information disclosed to the Executive or otherwise obtained by Executive during his employment with the Company or its
affiliates, and will take all necessary precautions to prevent disclosure, to any unauthorized individual or entity (whether or not such individual or entity is employed or engaged by, or is otherwise affiliated with, the Company or any affiliate),
and will use the Confidential Information solely for the benefit of the Company and its affiliates and will not use the Confidential Information for the benefit of any other person nor permit its use for the benefit of the Executive. These
obligations shall continue during and after the Executive’s termination from service and for so long as the Confidential Information remains Confidential Information. 

(b) Non-Competition. From the date hereof and continuing until October 31, 2014, the Executive agrees that without the written
consent of the Company, the Executive shall not at any time, directly or indirectly, in any capacity: 
 (i) engage or participate in,
become employed by, serve as a director of, or render advisory or consulting or other services in connection with, any energy business and any individual or entity (and any branch, office or operation thereof) which engages in, or proposes to engage
in (with the Executive’s assistance) any of the following in which the Executive has been engaged in the twelve (12) months preceding the Termination Date: the exploration and/or production of oil or gas which is located anywhere in the
United States (a “Competitive Business”); provided, however, that after the Termination Date, this Section 9(b)(i) shall not preclude the Executive from (A) being an employee of, or consultant to, any
business unit of a Competitive Business if (x) such business unit does not qualify as a Competitive Business in its own right and (y) the Executive does not have any direct or indirect involvement in, or responsibility for, any operations
of such Competitive Business that cause it to qualify as a Competitive Business, or (B) with the approval of an Authorized Company Executive, being a consultant to, an advisor to, a director of, or an employee of a Competitive Business (for
purposes of this Section 9(b), an “Authorized Company Executive” shall mean the individual then serving as the Chief Executive Officer or Senior Vice President of Human Resources of the Company); or 

  
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 (ii) make or retain any financial investment, whether in the form of equity or debt, or own any
interest, in any Competitive Business. Nothing in this subsection shall, however, restrict Executive from making an investment in any Competitive Business if such investment does not (A) represent more than 1% of the aggregate market value of
the outstanding capital stock or debt (as applicable) of such Competitive Business, (B) give the Executive any right or ability, directly or indirectly, to control or influence the policy decisions or management of such Competitive Business, or
(C) create a conflict of interest between the Executive’s duties to the Company and its affiliates or under this Agreement and his interest in such investment. 

(c) Non-Solicitation. From the date hereof and continuing until April 30, 2015, the Executive agrees that without the written
consent of the Company, the Executive shall not at any time, directly or indirectly, in any capacity: 
 (i) cause or attempt to cause any
employee, director or consultant of the Company or an affiliate to terminate his or her relationship with the Company or an affiliate; 

(ii) employ, engage as a consultant or adviser, or solicit the employment or engagement as a consultant or adviser, of any employee of the
Company or an affiliate (other than by the Company or its affiliates), or cause or attempt to cause any person to do any of the foregoing; 

(iii) interfere with the relationship of the Company or an affiliate with, or endeavor to entice away from the Company or an affiliate, any
Person who or which at any time during the period commencing twelve (12) months prior to the Termination Date was or is, to Executive’s knowledge, a material customer or material supplier of, or maintained a material business relationship
with, the Company or an affiliate; or; 
 (iv) solicit the sale of goods, services or a combination of goods and services from the
established customers of the Company or an affiliate. 
 (d) Non-Disparagement. 

(i) The Executive agrees not to make, or cause to be made, any statement, observation or opinion, or communicate any information (whether oral
or written, directly or indirectly) that (A) accuses or implies that the Company or any of its affiliates, together with their respective present or former officers, directors, partners, stockholders, employees and agents, and each of their
predecessors, successors and assigns, engaged in any wrongful, unlawful or improper conduct, whether relating to the Executive’s employment (or the separation therefrom), the business or operations of the Company or otherwise; or
(B) disparages, impugns or in any way reflects adversely upon the business or reputation of the Company or any of its affiliates, together with their respective present or former officers, directors, partners, stockholders, employees and
agents, and each of their predecessors, successors and assigns. 
 (ii) The Company agrees that it will not, and will instruct the members
of the Board of Directors of the Company and the executive officers of the Company to not, disparage or denigrate the Executive orally or in writing (including, without limitation, any comments or statements relating to the Executive’s
performance at the Company). 

  
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 (iii) Notwithstanding anything contained herein to the contrary, nothing herein shall be deemed
to preclude the Executive or the Company from providing truthful testimony or information pursuant to subpoena, court order or other similar legal or regulatory process, provided, that to the extent permitted by law, the Executive will promptly
inform the Company of any such obligation prior to participating in any such proceedings. 
 (e) Reasonableness of Restrictive
Covenants. 
 (i) The Executive acknowledges that the covenants contained in this Agreement are reasonable in the scope of the
activities restricted, the geographic area covered by the restrictions, and the duration of the restrictions, and that such covenants are reasonably necessary to protect the Company’s legitimate interests in its Confidential Information, its
proprietary work, and in its relationships with its employees, customers, suppliers and agents. 
 (ii) The Company has, and the Executive
has had an opportunity to, consult with their respective legal counsel and to be advised concerning the reasonableness and propriety of such covenants. The Executive acknowledges that his observance of the covenants contained herein will not deprive
the Executive of the ability to earn a livelihood or to support his or her dependents. 
 (f) Right to Injunction: Survival of
Undertakings. 
 (i) In recognition of the confidential nature of the Confidential Information, and in recognition of the necessity of
the limited restrictions imposed by this Agreement, the Executive and the Company agree that it would be impossible to measure solely in money the damages which the Company would suffer if the Executive were to breach any of his obligations
hereunder. The Executive acknowledges that any breach of any provision of this Agreement would irreparably injure the Company. Accordingly, the Executive agrees that if he breaches any of the provisions of Section 9 of this Agreement,
the Company shall be entitled, in addition to any other remedies to which the Company may be entitled under this Agreement or otherwise, to an injunction to be issued by a court of competent jurisdiction, to restrain any breach, or threatened
breach, of any provision of this Agreement without the necessity of posting a bond or other security therefor, and the Executive hereby waives any right to assert any claim or defense that the Company has an adequate remedy at law for any such
breach. 
 (ii) If a court determines that any covenant included in this Section 9 is unenforceable in whole or in part because
of such covenant’s duration or geographical or other scope, such court shall have the power to modify the duration or scope of such provision, as the case may be, so as to cause such covenant as so modified to be enforceable. Furthermore, if a
court determines that a certain form of remedy or relief sought by the Company for the breach of a covenant included in this Section 9 is unavailable under applicable law, such a finding shall not prohibit the Company from obtaining a
different form of remedy or relief with respect to such breach which such court has not found to be unavailable. 

  
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 (iii) All of the provisions of this Agreement shall survive any separation from service of the
Executive. 
 (g) Effect of Breach of Covenants. If a court of competent jurisdiction shall have found that the Executive is in
material breach of any restrictive covenant contained in this Agreement or the Release, the Executive forfeits his right to receive any payment or benefit under this Agreement and shall pay to the Company the value of any payment or benefit
previously received by the Executive under this Agreement. 
 10. Cooperation. Following the Termination Date, the Executive agrees
to fully cooperate with and provide reasonable assistance to the Company and its counsel in connection with any general business matters, transition of work, agency investigations or audits or litigation or corporate matters, and to be reasonably
available to the Company to do so at times and locations as to not interfere with the Executive’s duties and responsibilities to any future employer, job seeking opportunities or any personal responsibilities. 

11. Return of Company Property. The Executive shall promptly following the Termination Date return to the Company all documents,
records, files and other information and property belonging or relating to the Company, its affiliates, customers, clients or employees. The Executive acknowledges that all such materials are, and will remain, the exclusive property of the Company,
and the Executive may not retain originals or copies of such materials without the express written approval of the Company. Any Company-related information shall be expunged from any home equipment, and any
office connectivity or other continued internet or similar services provided by the Company shall cease. 
 12. Recoupment.
Notwithstanding anything herein to the contrary, this Agreement shall not impact any rights or restrictions under the Company’s Recoupment Policy for incentive compensation, as adopted by the Board of Directors of the Company and referred to in
the Company’s most recent proxy statement filed with the Securities and Exchange Commission, as in effect on the date hereof, and the Executive acknowledges and agrees he remains subject to the terms of such policy following the Termination
Date. 
 13. Severability. In the event that any one or more of the provisions of this Agreement are held to be invalid, illegal or
unenforceable, the validity, legality and enforceability of the remainder of this Agreement shall not in any way be affected or impaired thereby. 

14. Waiver. No waiver by either party of any breach by the other party of any condition or provision of this Agreement to be performed
by such other party shall be deemed a waiver of any other provision or condition at the time or at any prior or subsequent time. 
 15.
Governing Law. This Agreement shall be governed by and construed and enforced in accordance with the laws of the State of Oklahoma, without reference to its choice of law rules. 

16. Withholding. The Company shall deduct or withhold, or require the Executive to remit to the Company, the minimum statutory amount
to satisfy federal, state or local taxes required by law or regulation to be withheld with respect to any benefit provided hereunder. 

  
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 17. Entire Agreement. This Agreement, including all other agreements expressly
incorporated or referred to herein, shall constitute the entire agreement and understanding of the parties with respect to the subject matter herein and supersedes all prior agreements, arrangements and understandings, written or oral, between the
parties with respect to the subject matter herein. Executive acknowledges that he is not eligible for and shall not receive any additional separation or severance payment under any plan or program maintained by the Company. The Executive
acknowledges and agrees that he is not relying on any representations or promises by any representative of the Company concerning the meaning of any aspect of this Agreement or the Release. This Agreement and the Release may not be altered or
modified other than in a writing signed by the Executive and an authorized representative of the Company. 
 18. Notices. All notices
given hereunder shall be given in writing, shall specifically refer to this Agreement and shall be personally delivered or sent by telecopy or other electronic facsimile transmission or by registered or certified mail, return receipt requested, at
the address set forth below or at such other address as may hereafter be designated by notice given in compliance with the terms hereof: 
  

			
	If to the Executive:	  	Neal Buck
		  	At the most recent address on the Company’s records
		
	If to the Company:	  	WPX Energy, Inc.
		  	One Williams Center
		  	Tulsa, Oklahoma 74172-0172
		  	Attention: General Counsel
		  	Facsimile: (539) 573-5608

 If notice is mailed, such notice shall be effective upon mailing, or if notice is personally delivered or sent by telecopy or
other electronic facsimile transmission, it shall be effective upon receipt. 
 19. Successors and Assigns. This Agreement is
intended to bind and inure to the benefit of and be enforceable by the Executive, the Company and their respective heirs, successors and assigns, except that the Executive may not assign his rights or delegate his obligations hereunder without the
prior written consent of the Company. 
 20. Counterparts. This Agreement may be executed in counterparts, each of which shall be
deemed an original but all of which together shall constitute one and the same instrument. 
 21. Section 409A. 

(a) Compliance. The intent of the parties is that payments and benefits under this Agreement are either exempt from or comply with
Section 409A of the Internal Revenue Code (“Section 409A”) and this Agreement shall be interpreted to that end. The parties acknowledge and agree that the interpretation of Section 409A and its application to the terms of
this 

  
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Agreement is uncertain and may be subject to change as additional guidance and interpretations become available. In no event whatsoever shall the Company be liable for any tax, interest or
penalties that may be imposed on the Executive by Section 409A or any damages for failing to comply with Section 409A. 
 (b)
Six Month Delay for Specified Employees. If any payment, compensation or other benefit provided to the Executive in connection with his separation from service is determined, in whole or in part, to constitute “nonqualified deferred
compensation” within the meaning of Section 409A and the Executive is a “specified employee” as defined in Section 409A, no part of such payments shall be paid before the day that is six (6) months plus one (1) day
after the Termination Date or, if earlier, the Executive’s death (the “New Payment Date”). The aggregate of any payments that otherwise would have been paid to the Executive during the period between the Termination Date and
the New Payment Date shall be paid to the Executive in a lump sum on such New Payment Date. Thereafter, any payments that remain outstanding as of the day immediately following the New Payment Date shall be paid without delay over the time period
originally scheduled, in accordance with the terms of this Agreement. 
 (c) Separation from Service. A separation from service shall
not be deemed to have occurred for purposes of any provision of this Agreement providing for the payment of any amounts or benefits subject to Section 409A upon or following a separation from service until such separation is also a
“separation from service” within the meaning of Section 409A and for purposes of any such provision of this Agreement, references to a “resignation,” “termination,” “terminate,” “termination of
employment” or like terms shall mean separation from service. 
 (d) Payments for Reimbursements and In-Kind Benefits. All
reimbursements for costs and expenses under this Agreement shall be paid in no event later than the end of the calendar year following the calendar year in which the Executive incurs such expense. With regard to any provision herein that provides
for reimbursement of costs and expenses or in-kind benefits, except as permitted by Section 409A, (i) the right to reimbursement or in-kind benefits shall not be subject to liquidation or exchange for another benefit, and (ii) the
amount of expenses eligible for reimbursements or in-kind benefits provided during any taxable year shall not affect the expenses eligible for reimbursement or in-kind benefits to be provided in any other taxable year. 

(e) Payments within Specified Number of Days. Whenever a payment under this Agreement specifies a payment period with reference to a
number of days, the actual date of payment shall be within the sole discretion of the Company. 
 (f) Installments as Separate
Payment. If under this Agreement, an amount is paid in two (2) or more installments, for purposes of Section 409A, each installment shall be treated as a separate payment. 

[SIGNATURE PAGE FOLLOWS] 

  
 10 

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the dates set forth
below. 
  

			
	WPX ENERGY, INC.
		
	 By:
	 	 /s/ James Bender

	 Date:
	 	February 18, 2014
	James Bender
	President & Chief Executive Officer

  

			
	EXECUTIVE:
		
	By:	 	/s/ Neal Buck
	Date:	 	February 18, 2014
	Neal Buck

 Exhibit A 

RELEASE AGREEMENT 
 This
RELEASE AGREEMENT (this “Release”), dated                     , 2014, by and between WPX Energy, Inc. its subsidiaries and
affiliates (collectively the “Company”), and Neal Buck (“Executive”). 
 WHEREAS, the Executive and the
Company have entered into a Severance Agreement dated                     , 2014 (the “Severance Agreement”); 

NOW THEREFORE, in consideration for receiving separation benefits under the Severance Agreement and in consideration of the representations,
covenants and mutual promises set forth in this Release, the parties agree as follows: 
 1. Release. Except with respect to all of
the Company’s obligations under the Severance Agreement, the Executive, and the Executive’s heirs, executors, assigns, agents, legal representatives, and personal representatives, hereby releases, acquits and forever discharges the
Company, its agents, subsidiaries, affiliates, and their respective officers, directors, agents, servants, employees, attorneys, shareholders, partners, members, managers, successors, assigns and affiliates (the “Released Parties”),
of and from any and all claims, liabilities, demands, causes of action, costs, expenses, attorney’s fees, damages, indemnities and obligations of every kind and nature, in law, equity, or otherwise, known and unknown, suspected and unsuspected,
disclosed and undisclosed, arising out of or in any way related to agreements, events, acts or conduct at any time prior to the execution of this Release that arose out of or were related to the Executive’s employment with the Company or the
Executive’s separation from service with the Company including, but not limited to, claims or demands related to wages, salary, bonuses, commissions, stock, stock options, or any other ownership interests in the Company, vacation pay, fringe
benefits, expense reimbursements, sabbatical benefits, severance benefits, or any other form of compensation or equity or thing of value whatsoever; claims pursuant to under Title VII of the Civil Rights Act of 1964 as amended by the Civil Rights
Act of 1991, 42 U.S.C. § 2000e, et seq.; 42 U.S.C. § 1981; 42 U.S.C. § 1983; 42 U.S.C. § 1985; 42 U.S.C. § 1986; the Equal Pay Act of 1963, 29 U.S.C. § 206(d); the National Labor Relations Act, as amended, 29 U.S.C.
§ 160, et seq.; the Americans With Disabilities Act of 1990, 42 U.S.C. § 12101, et seq.; the Employee Retirement Income Security Act of 1974, as amended, (“ERISA”), 29 U.S.C. § 1001, et seq.; the Age Discrimination in
Employment Act of 1967, as amended by the Older Workers Benefit Protection Act of 1990, 29 U.S.C.§ 621, et seq.; the Family and Medical Leave Act of 1993, 29 U.S.C.§ 2601 et seq.; the Equal Pay Act; the Rehabilitation Act of 1973; the
federal Worker Adjustment and Retraining Notification Act (as amended) and similar laws in other jurisdictions; the Oklahoma Anti-Discrimination Act, Okla. Stat., tit. 25, §§ 1101, et seq., and any claims for wrongful discharge, breach of
contract, breach of the implied covenant of good faith and fair dealing, fraud, discrimination, harassment, defamation, infliction of emotional distress, termination in violation of public policy, retaliation, including workers’ compensation
retaliation under state statutes, tort law; contract law; wrongful discharge; discrimination; fraud; libel; slander; defamation; harassment; emotional distress; breach of the implied covenant of 

  
 A-1 

 
good faith and fair dealing; or claims for whistle- blowing, or other claims arising under any local, state or federal regulation, statute or common law. This Release does not apply to the
payment of any and all benefits and/or monies earned, accrued, vested or otherwise owing, if any, to the Executive under the terms of a Company sponsored tax qualified retirement or savings plan and/or any non-qualified deferred compensation plan(s)
sponsored by the Company, except that the Executive hereby releases and waives any claims that his separation from service was to avoid payment of such benefits or payments, and that, as a result of his separation, he is entitled to additional
benefits or payments. Additionally, this Release does not apply to the indemnification provided or any other payments or benefits to which the Executive is entitled pursuant to the Severance Agreement (including, without limitation, in the
outstanding equity awards referenced in Section 5 thereof). This Release does not apply to any claim or rights which might arise out of the actions of the Company after the date the Executive signs this Release or any other claims or rights
that Executive is prohibited from waiving under applicable law. 
 2. Covenant Not to Sue. By signing this Release, the Executive
covenants, agrees, represents and warrants that he has not filed and will not in the future file any lawsuits, complaints, petitions or accusatory pleadings in a court of law or in conjunction with a dispute resolution program against any of the
Released Parties based upon, arising out of or in any way related to any event or events occurring prior to the signing of this Release, including, without limitation, his employment with any of the Released Parties or the termination thereof.
Nothing in this Release shall limit the Executive’s right to file a charge or complaint with any state or federal agency or to participate or cooperate in such a matter. However, the Executive expressly waives all rights to recovery for any
damages or compensation awarded as a result of any suit or proceeding brought by any third party or governmental agency on the Executive’s behalf. 

3. No Assignment of Claims. By signing this Release, the Executive further covenants, agrees, represents and warrants that he has not
heretofore assigned or transferred, or purported to assign or transfer, to any person or entity, any claim or any portion thereof or interest therein and acknowledges that this Release shall be binding upon the Executive and upon his heirs,
administrators, representatives, executors, successors, and assigns, and shall inure to the benefit of each of the Released Parties, and to their heirs, administrators, representatives, executors, successors, and assigns. 

4. No Release of Vested Benefits or Health and Welfare Benefits. By signing this Release, the Executive does not release or discharge
any right to any vested, deferred benefit in any qualified employee benefit plan which provides for retirement, pension, savings, thrift and/or employee stock ownership or any benefit due the Executive as a participant in any employee health and
welfare plan, as such terms are used under ERISA, which is maintained by any of the Released Parties that employed the Executive. 
 5.
No Admission of Liability. Notwithstanding the provisions of this Release and the payments to be made by the Company to the Executive hereunder, the Released Parties do not admit any manner of liability to the Executive. This Release has been
entered into as a means of settling any and all disputes between the Released Parties and the Executive. 

  
 A-2 

 6. No Inducement. The Executive agrees that no promise or inducement to enter into this
Release has been offered or made except as set forth in this Release or the Severance Agreement, that the Executive is entering into this Release without any threat or coercion and without reliance or any statement or representation made on behalf
of the Company or by any person employed by or representing the Company, except for the written provisions and promises contained in this Release or the Severance Agreement. 

7. Damages. The parties agree that damages incurred as a result of a breach of this Release will be difficult to measure. It is,
therefore, further agreed that, in addition to any other remedies, equitable relief will be available in the case of a breach of this Release. It is also agreed that, in the event the Executive files a claim against the Company with respect to a
claim released by the Executive herein (other than a proceeding before the EEOC), the Company may withhold, retain, or require reimbursement of all or any portion of the benefits and Separation Payment under the Severance Agreement until such claim
is withdrawn by the Executive. 
 8. Advice of Counsel; Time to Consider; Revocation. The Executive acknowledges the following: 

(a) The Executive has read this Release, and understands its legal and binding effect. The Executive is acting voluntarily and of the
Executive’s own free will in executing this Release. 
 (b) The Executive has been advised to seek and has had the opportunity to seek
legal counsel in connection with this Release. 
 (c) The Executive was given at least twenty-one (21) days to consider the terms of
this Release before signing it. 
 The Executive understands that, if the Executive signs this Release, the Executive may revoke it within seven
(7) days after signing it by delivering written notification of intent to revoke within that seven (7) day period. The Executive understands that this Release will not be effective until after the seven (7) day period has expired.

 9. Severability. If all or any part of this Release is declared by any court, arbitrator or governmental authority to be unlawful,
invalid, void or unenforceable, such unlawfulness, invalidity or unenforceability shall not affect the validity or enforceability of any other portion of this Release. Any section or a part of a section declared to be unlawful, invalid, void or
unenforceable shall, if possible, be construed in a manner which will give effect to the terms of the section to the fullest extent possible while remaining lawful and valid. To the extent that any provision of this Release is adjudicated to be
unlawful, invalid, void or unenforceable because it is overbroad, that provision shall not be void but rather shall be limited only to the extent required by applicable law and enforced as so limited. The parties expressly acknowledge and agree that
this Section is reasonable in view of the parties’ respective interests. 
 10. Amendment. This Release shall not be altered,
amended, or modified except by written instrument executed by the Company and the Executive. A waiver of any portion of this Release shall not be deemed a waiver of any other portion of this Release. 

  
 A-3 

 11. Counterparts. This Release may be executed in several counterparts, each of which
shall be deemed to be an original, but all of which together will constitute one and the same instrument. 
 12. Headings. The
headings of this Release are not part of the provisions hereof and shall not have any force or effect. 
 13. Rules of Construction.
Reference to a specific law shall include such law, any valid regulation promulgated thereunder, and any comparable provision of any future legislation amending, supplementing or superseding such section. 

14. Applicable Law. The provisions of this Release shall be interpreted and construed in accordance with the laws of the State of
Oklahoma without regard to its choice of law principles. 
 [SIGNATURE PAGE FOLLOWS] 

  
 A-4 

 IN WITNESS WHEREOF, the parties hereto have executed this Release as of the dates set forth below. 

 

			
	WPX ENERGY, INC.
		
	By:	 	 /s/

	Date:	 	
	James Bender
	President & Chief Executive Officer

  

			
	EXECUTIVE:
		
	By:	 	 /s/

	Date:	 	
	Neal Buck

 [Signature Page to Release]

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