Document:

Separation Agreement and Release of Warren L. Williams

 EXHIBIT 10.5 
 SEPARATION AGREEMENT AND RELEASE 
 THIS SEPARATION AGREEMENT AND RELEASE
(this “Agreement”) is made by and between Willbros USA, Inc., a Delaware corporation (“Willbros”), and Warren L. Williams (“Executive”) and shall become effective on the eighth day following its execution by
Executive and return to Willbros (“Effective Date”). 
 PURPOSE 
 Willbros and Executive have reached a mutual agreement that Executive’s employment will terminate on August 9, 2006 (the “Termination
Date”), pursuant to the terms of this Agreement. 
 TERMS 
 To achieve a final and amicable resolution of the employment relationship in all its aspects and in consideration of the mutual covenants and promises
herein contained and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows: 
 1. Severance Payment. Executive is a participant in the Willbros Group, Inc. Severance Plan, as amended and restated effective September 25, 2003 (the “Severance Plan”). In accordance with the
terms of the Severance Plan, Willbros shall pay Executive an amount equal to Executive’s annual base salary or Three Hundred Fifty Thousand Dollars ($350,000) (the “Severance Payment”). As a result of Section 409A of the Internal
Revenue Code of 1986, as amended (the “Code”), the Severance Payment, less applicable withholding taxes, shall be paid to Executive within 60 business days following the date that Executive ceases to provide consulting services to Willbros
pursuant to the Consulting Agreement attached hereto as Exhibit A. 
 2. Vesting of Restricted Stock. Executive has been granted
26,250 shares of restricted stock under the Willbros Group, Inc. 1996 Stock Plan, as amended (the “1996 Stock Plan”), the ownership of which has not yet vested in Executive pursuant to the terms of the Restricted Stock Award Agreements
evidencing such grants. Willbros agrees that all of such shares of restricted stock granted to Executive shall vest in full as of the Termination Date. Executive acknowledges that withholding taxes will be due on such shares when vested on the
Termination Date. The Compensation Committee of the Board of Directors of Willbros Group, Inc. (“WGI”), has approved allowing Executive to satisfy the withholding requirement, in whole or in part, by having WGI 

 
withhold shares of restricted stock having a Fair Market Value (as defined in the 1996 Stock Plan) on the date the tax is to be determined equal to the
minimum statutory total tax which could be withheld on the transaction. 
 3. Stock Options. As a participant in the 1996 Stock Plan,
Executive has vested options to purchase 82,150 shares of common stock of WGI at various prices. Under the terms of the option agreements evidencing such options, such options must be exercised within three months from the Termination Date (but not
beyond the expiration date of such options). As of the Effective Date, the Compensation Committee of the Board of Directors of WGI has extended the period in which Executive may exercise each of such options to December 31, 2006, as permitted
by Section 409A of the Code. Executive acknowledges, however, that such extension of the exercise period may cause Executive’s incentive stock options, if any, to be treated as non-qualified stock options for federal income tax purposes.
Executive further acknowledges that any of Executive’s incentive stock options which are exercised more than three months after the Termination Date will be treated as non-qualified stock options for federal income tax purposes. 
 4. Consulting Agreement. On the Effective Date, Willbros and Executive shall enter into the Consulting Agreement attached hereto as Exhibit A,
effective as of August 10, 2006. 
 5. Executive’s 2005 Bonus. Executive has been awarded a bonus payable over time in the
amount of Three Hundred Fifty Thousand Dollars ($350,000) for calendar year 2005, pursuant to the terms of that certain Key Employee Special Bonus Agreement dated as of March 14, 2006, between Willbros and Executive, with Two Hundred Thirty
Three Thousand Three Hundred Thirty-Four Dollars ($233,334), in the aggregate, payable in two future installments (March 14, 2007 and March 14, 2008) subject to various conditions including continued employment. Executive, at the sole
discretion of the President of WGI, shall be entitled to receive the remaining installments, without interest, as compensation for providing consulting services as set forth in the Consulting Agreement attached hereto as Exhibit A. 
 6. Outstanding Loans. Pursuant to the Employee Stock Purchase Program, Executive has two outstanding loans from Willbros in the aggregate
principal amount of Two Hundred Fifty Thousand Dollars ($250,000), which become due and payable 30 days following the Termination Date. Such loans are full recourse and secured by an aggregate of 18,475 shares of common stock of WGI (the
“Shares”). Willbros and Executive agree that the loans shall be paid in full on the Effective 

  

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Date, by Executive surrendering and transferring to Willbros Shares having a Fair Market Value (as defined in the 1996 Stock Plan) on the Termination Date
equal to Two Hundred Fifty Thousand Dollars ($250,000). The remaining Shares, if any, not so transferred to Willbros shall be returned to Executive. 
 7. Group Health Coverage. Executive may be eligible to continue coverage for himself and his covered dependents in the group health plan sponsored by Willbros pursuant to the Consolidated Omnibus Budget
Reconciliation Act of 1985 as amended (“COBRA”). During the period that Executive is providing consulting services to Willbros pursuant to the Consulting Agreement, Willbros will reimburse the COBRA premium cost of any such continued
health care coverage for the Executive and his covered dependents under the applicable Willbros group health plan. Executive must comply with all eligibility requirements for COBRA continuation. Except as specifically set forth herein, life
insurance, disability and other employee benefits made available to Executive by Willbros ended on the Termination Date. 
 8. Other
Benefits. Neither this Agreement nor the release contained herein shall waive Executive’s right to any accrued benefit under a company plan in which he is a qualified participant, including but not limited to any benefits under a pension or
retirement plan. 
 9. Waiver of Reinstatement and Future Employment. Executive forever waives and relinquishes any right or claim to
reinstatement to active employment with Willbros, its affiliates, subsidiaries, divisions, and successors. 
 10. Release by Executive of
Willbros. Except for the obligations specifically set forth in this Agreement, Executive fully and forever relieves, releases, and discharges Willbros, its predecessors, successors, subsidiaries, operating units, affiliates, divisions, and the
agents, representatives, officers, directors, shareholders, employees and attorneys of each of the foregoing, from all claims, debts, liabilities, demands, obligations, promises, acts, agreements, costs, expenses, damages, actions, and causes of
action whether in law or in equity, whether known or unknown, suspected or unsuspected, arising from Executive’s employment with and termination from Willbros, including but not limited to any and all claims pursuant to Title VII of the Civil
Rights Act of 1964, 42 U.S.C. § 2000e, et seq., as amended by the Civil Rights Act of 1991, which prohibits discrimination in employment based on race, color, national origin, religion or sex; the Civil Rights Act of 1866, 42
U.S.C.§§1981, 1983 and 1985, which prohibits violations of civil rights; the Equal 

  

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Pay Act of 1963, 29 U.S.C. § 206(d)(1), which prohibits unequal pay based upon gender; the Age Discrimination in Employment Act of 1967, as amended, and
as further amended by the Older Workers Benefit Protection Act, 29 U.S.C. § 621, et seq., which prohibits age discrimination in employment; the Employee Retirement Income Security Act of 1974, as amended, 29 U.S.C. §1001, et
seq., which protects certain employee benefits; the Americans with Disabilities Act of 1990, as amended, 42 U.S.C. § 12101, et seq., which prohibits discrimination against the disabled; the Family and Medical Leave Act of 1993, 29
U.S.C. § 2601, et seq., which provides medical and family leave; the Fair Labor Standards Act, 29 U.S.C. § 201, et seq., including the Wage and Hour Laws relating to payment of wages; all federal, state and local laws and
regulations which prohibit discrimination in employment and which prohibit discharge in retaliation for exercising rights under applicable Workers’ Compensation statutes. This release also includes, but is not limited to, a release by Executive
of any claims for breach of contract, mental pain, suffering and anguish, emotional upset, impairment of economic opportunities, unlawful interference with employment rights, defamation, intentional or negligent infliction of emotional distress,
fraud, wrongful termination, wrongful discharge in violation of public policy, breach of any express or implied covenant of good faith and fair dealing, that Willbros has dealt with Executive unfairly or in bad faith, and all other common law
contract and tort claims. Executive is not waiving any rights or claims that may arise after this Agreement is signed by Executive. 
 11.
Non-Competition; Non-Solicitation Pledge. Section 3.4 of the Severance Plan provides that in consideration of the Severance Payment, Executive shall not compete with Willbros as set forth in such Section 3.4 for 12 months after the
Termination Date. On the Effective Date, Willbros hereby waives the provisions of Section 3.4 of the Severance Plan as they may be applicable to Executive; provided, however, for a period of one year following the Effective Date, Executive
agrees, for his own interests or while acting on behalf of others, not to solicit, induce, or attempt to induce, any employee, contractor, vender, or customer of Willbros or its affiliates to terminate their relationship or cease doing business with
Willbros or its affiliates. 
 12. Protection of Willbros’ Information. All records, files, and other data, including but not
limited to, business plans, contracts, employee information, customer lists, pricing models, vender data, and financial reports and projections, relating to the businesses of Willbros and its affiliates, which Executive has used, prepared or come in
contact with during his employment by Willbros are 

  

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the sole property of Willbros and shall be treated as confidential (“Confidential Information”). Executive agrees that he will not, directly or
indirectly, disclose any Confidential Information to any third person, except pursuant to court order or as a result of valid government subpoena. In the case of any such court-ordered or government compelled disclosure, Executive will provide
Willbros with immediate written notice of the order or subpoena. 
 13. Non-disparagement of Willbros. Executive’s response to
any inquiry concerning his employment termination shall be limited to a statement that his departure was mutually agreed upon between Executive and Willbros. Executive will make no public statements or releases to the media disparaging the
management of Willbros or its affiliates, or its or their respective business plans, forecasts, or financial condition. Nothing contained herein shall prevent Executive from using any truthful, non-confidential information about Willbros and his
employment in order to obtain employment. 
 14. Indemnification; Continued Cooperation; Gross-up Payment. Nothing in this Agreement
shall affect any of Executive’s rights or obligations with respect to indemnification or director and officer liability insurance coverage to which Executive is entitled or subject in his capacity as a former officer of Willbros, a former
officer of WGI or a former officer or director of certain WGI affiliates, whether under that certain Indemnification Agreement between WGI and Executive or otherwise. 
 Executive agrees to assist Willbros, its affiliates and their respective attorneys in any litigation, claim, dispute, or governmental investigation brought by or against Willbros or its affiliates as to which
Executive may have knowledge of the facts and circumstances. Executive agrees to immediately notify Willbros upon receipt of any subpoena or deposition notice compelling his testimony related to matters arising out of his employment with Willbros.
Subject to Section 15, Willbros shall reimburse Executive for all reasonable expenses incurred in complying with this provision. 
 If
any of the payments or benefits which Executive has the right to receive from Willbros pursuant to this Agreement, other than the Severance Payment set forth in Section 1 (the “Payments”), are later determined to be subject to the tax
imposed by Section 409A of the Code, or any interest or penalties with respect to such tax (such tax, together with any such interest or penalties, are hereinafter collectively referred to as the “409A Tax”), Willbros shall pay to
Executive an additional 

  

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payment (a “Gross-up Payment”) in an amount such that after payment by Executive of all taxes (including any interest or penalties imposed with
respect to such taxes), including any income tax imposed on any Gross-up Payment, Executive retains an amount of the Gross-up Payment equal to the 409A Tax imposed upon the Payments. The Compensation Committee of the Board of Directors of WGI shall
make an initial determination as to whether a Gross-up Payment is required and the amount of any such Gross-up Payment. Executive shall notify Willbros immediately in writing of any claim by the Internal Revenue Service which, if successful, would
require Willbros to make a Gross-up Payment (or a Gross-up Payment in excess of that, if any, initially determined by the Compensation Committee of the Board of Directors of WGI) within five days of the receipt of such claim. Willbros shall notify
Executive in writing at least five days prior to the due date of any response required with respect to such claim if it plans to contest the claim. If Willbros decides to contest such claim, then Executive shall cooperate fully with Willbros in such
action; provided, however, Willbros shall bear and pay all costs and expenses (including additional interest and penalties) incurred in connection with such action and shall indemnify and hold Executive harmless, on an after-tax basis, for any 409A
Tax or income tax, including interest and penalties with respect thereto, imposed as a result of Willbros’ action. If, as a result of Willbros’ action with respect to a claim, Executive receives a refund of any amount paid by Willbros with
respect to such claim, then Executive shall promptly pay such refund to Willbros. If Willbros fails to timely notify Executive whether it will contest such claim or Willbros determines not to contest such claim, then Willbros shall immediately pay
to Executive the portion of such claim, if any, which it has not previously paid to Executive. 
 15. Legal Defense Counsel and Related
Defense Costs. Subject to the conditions set forth herein, Willbros hereby confirms that it will continue to make available to Executive and bear the cost of legal counsel to assist Executive with Executive’s preparation for, and
appearance, at any interviews or testimony requested by the U.S. Securities and Exchange Commission (“SEC”) and/or the U.S. Department of Justice (“DOJ”) in connection with the investigation of Willbros and its affiliates
currently being conducted by those agencies (the “Investigation”). Willbros is providing such legal counsel at its own expense because (i) Executive was a former officer and employee of Willbros and certain of its affiliates during
the period under Investigation, (ii) it appears at the Termination Date that the SEC and DOJ may still be interested in interviewing Executive or obtaining Executive’s testimony in connection with the Investigation, and (iii) at the
Termination Date it appears 

  

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to Willbros that Executive’s knowledge and actions under review by the SEC and the DOJ do not indicate that Executive engaged in self enrichment or
otherwise acted improperly. 
 This undertaking by Willbros as described in this Section 15 is subject to change if it is later
determined that Executive engaged in actions which (i) were improper in the view of the SEC and/or the DOJ, or (ii) could have reasonably been expected by Executive to have been contrary to the best interests of Willbros. Accordingly, this
undertaking is not an irrevocable undertaking by Willbros to indemnify Executive in the future for all legal costs or fines or penalties that Executive may incur in connection with the Investigation or legal proceedings related thereto. In general,
those future determinations, if any, will be made on the basis of the terms of this undertaking, applicable law and the relevant facts and circumstances established during the Investigation which relate to the matters for which Executive is then
seeking indemnity. 
 For the reasons stated above, this undertaking shall not be deemed to be a waiver of any such rights or defenses in
connection with such future indemnification determinations by Willbros in respect of Executive’s particular status in the Investigation. If Willbros or its legal counsel at any time makes a determination denying Executive future
indemnification, Willbros will immediately notify Executive in writing specifying in reasonable detail the reasons supporting such a determination. 
 This undertaking by Willbros to make legal counsel available to Executive and to defray, at the Termination Date, the costs and expenses incurred by Executive in connection with the Investigation has arisen, in part, due to Executive’s
many years of good and loyal service to Willbros. Accordingly, these amounts constitute expenses for a business purpose and are not personal expenses. Payment of these amounts is not intended to be, and Willbros expressly stipulates that they are
not, a “personal loan” under Section 402 of the Sarbanes-Oxley Act. 
 16. Acknowledgment. Executive acknowledges that
among other rights which he is waiving by entering into this Agreement is the right to bring an action pursuant to the Age Discrimination in Employment Act (“ADEA”) and similar state statutes. The following admonitions and rights have been
negotiated by the parties in order to insure full compliance with the requirements of the ADEA for a valid waiver of claim: 
 a) Executive has been advised to discuss the terms of this Agreement with an attorney before signing. 
  

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 b) Executive has been extended a period of 21 days within which to consider this
Agreement. 
 c) For a period of seven (7) days following Executive’s execution of the Agreement, Executive may
revoke the Agreement by notifying Willbros, in writing, of his desire to do so. After the seven (7) day period has elapsed, this Agreement shall become effective and enforceable. 
 d) All or part of the sums paid by Willbros hereunder is consideration to which Executive is not otherwise entitled under any Willbros
plan, program or prior agreement. 
 17. No Admission of Liability. This Agreement and compliance with this Agreement shall not be
construed as an admission by Willbros of any liability whatsoever, or as an admission by Willbros of any violation of the rights of Executive or any other person, or any violation of any order, law, statute, duty or contract. 
 18. Governing Law. This Agreement will be interpreted and enforced in accordance with the laws of the State of Texas. 
 19. Entirety and Integration. Upon the execution hereof by all the parties, this Agreement and the Consulting Agreement shall constitute a single,
integrated contract expressing the entire agreement of the parties relative to the subject matter hereof and supersedes all prior negotiations, understandings and/or agreements, if any, of the parties. No covenants, agreements, representations, or
warranties of any kind whatsoever have been made by any party hereto, except as specifically set forth in this Agreement or the Consulting Agreement. 
 20. Authorization. Each person signing this Agreement as a party or on behalf of a party represents that he or she is duly authorized to sign this Agreement on such party’s behalf, and is executing this
Agreement voluntarily, knowingly, and without any duress or coercion. 
  

									
	 WILLBROS
	  		  	EXECUTIVE
				
	 By:
	 	 /s/ Dennis G. Berryhill
	  		  	/s/ Warren L. Williams
		 	 Name:
	 	 Dennis G. Berryhill
	  		  	Warren L. Williams
		 	 Title:
	 	 Vice President and Secretary
	  		  	Date: August 21, 2006
		 	 Date:
	 	 August 21, 2006
	  		  	

  

 8Consulting Services Agreement of Warren L. Williams

 EXHIBIT 10.6 
 CONSULTING SERVICES AGREEMENT 
 THIS CONSULTING SERVICES AGREEMENT (this
“Agreement”) is entered into as of the 10th day of August, 2006, by and between WILLBROS USA, INC. (“Willbros”), a Delaware corporation, and Warren L. Williams (“Consultant”), an individual who resides in Houston,
Texas. 
 W I T N E S S E T H: 
 WHEREAS, Consultant served as Chief Financial Officer and Treasurer of Willbros Group, Inc. (“WGI”) for a number of years and has significant financial and accounting experience and expertise; and 
 WHEREAS, Consultant has unique knowledge and expertise in financial and accounting matters as they relate to Willbros and its affiliates; and 

WHEREAS, Willbros and its affiliates wish to obtain certain financial and accounting advice and assistance from Consultant in connection with the
transition of the offices of Chief Financial Officer and Treasurer and Consultant is willing to provide such advice and assistance to Willbros and its affiliates on the terms specified herein; 
 NOW, THEREFORE, for and in consideration of the premises and the mutual promises and covenants hereinafter set forth, the parties hereto agree as
follows: 
 1. SERVICES TO BE PERFORMED. The services to be provided by Consultant shall consist of financial and accounting advice
and assistance in connection with the transition of the offices of Chief Financial Officer and Treasurer and such other projects as reasonably requested by the President of WGI and the new Chief Financial Officer and Treasurer of WGI
(“Services”). 
 All Services shall be rendered at the request and under the general direction of the new Chief Financial Officer
and the President of WGI. Subject to Paragraph 11 below, Willbros will provide Consultant such information about the business activities of Willbros and its affiliates as Consultant may reasonably require in order to carry out the Services.

 2. STANDARD OF PERFORMANCE. All Services will be performed by Consultant with a level of skill and care generally exercised by
other professional consultants engaged in performing the same or similar services. In performing the Services, Consultant will cooperate fully and completely with the new Chief Financial Officer and Treasurer of WGI and other personnel of Willbros
and its affiliates and comply fully with all applicable laws. 
 3. RELATIONSHIP. The relationship between Willbros and Consultant
shall be that of independent contractors and Consultant shall not be or be deemed to be a partner, agent or employee of Willbros or any of its affiliates. 
  

 Consultant shall not be eligible to participate in any employee pension, insurance, medical, retirement
or other fringe benefit plan of Willbros or any of its affiliates on account of the provision of Services pursuant to this Agreement. 
 4.
TERM. Subject to the provisions for termination hereinafter set forth, this Agreement shall become effective on August 10, 2006 and shall continue until December 31, 2006. 
 5. AVAILABILITY. Consultant shall be available to perform Services for up to forty (40) hours per week. 
 6. COMPENSATION. As compensation for providing Services pursuant to the terms of this Agreement, Willbros, at the sole discretion of the President
of WGI, shall pay Consultant as follows: 
 (a) Twenty Nine Thousand One Hundred Sixty Six Dollars ($29,166) for the first
thirty (30) days of Service, Twenty Nine Thousand One Hundred Sixty Six Dollars ($29,166) for the next (30) days of Service and One Hundred Seventy Five Thousand Two Dollars ($175,002) upon completing such sixty (60) days of Service,
with payment, if any, for such Services to be made promptly after completion of such Services; and 
 (b) Two Hundred Sixty
Two Thousand Five Hundred Dollars ($262,500) upon completion of the initial sixty (60) days of Services under this Agreement (i.e., through October 8, 2006) and commencing Services during the remaining term of this Agreement and
Eighty Seven Thousand Five Hundred Dollars ($87,500) upon completion of Services during the remaining term of this Agreement (i.e., through December 31, 2006), with payment, if any, for such Services to be made promptly after the earlier
of December 31, 2006 or the termination of this Agreement pursuant to Paragraph 14. 
 7. EXPENSES AND FACILITIES. Willbros shall
reimburse Consultant for all reasonable business expenses paid or incurred by Consultant directly in connection with the performance of the Services. In addition, while this Agreement remains in effect, Willbros shall make available to Consultant
without charge appropriate office space, office equipment, secretarial assistance, parking, communications equipment and storage space at Willbros’ offices in Houston, Texas. 
 8. TAXES. Consultant will pay, be fully responsible for and indemnify Willbros and its affiliates against all taxes attributable to the
compensation payable to Consultant hereunder, including, without limitation, income, unemployment, social security and medicare taxes. 
 9.
INSURANCE. While this Agreement remains in effect, Consultant will maintain in force or cause to be maintained in force with respect to any automobile operated by Consultant automobile liability insurance with limits of not less than One
Hundred Thousand Dollars ($100,000) for any one person for bodily injury or death, Three Hundred Thousand Dollars ($300,000) for any one accident for bodily injury or death and Fifty Thousand Dollars ($50,000) for property damage. Consultant will
provide Willbros evidence of such insurance upon its request. While performing consulting services under this Agreement, Consultant will be an insured person under such accidental death and dismemberment and crisis management 

  

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insurance policies as Willbros maintains in force with respect to certain of its employees and consultants who are engaged in international business travel.
However, Willbros reserves the right to modify or terminate such insurance policies at any time. 
 10. INDEMNIFICATION. Willbros will
indemnify Consultant against any liability resulting from Consultant’s provision of the Services after the effective date of August 10, 2006, provided such liability is not attributable to Consultant’s gross negligence, willful
misconduct or failure to comply with the provisions of this Agreement. 
 11. CONFIDENTIALITY. Except with Willbros’ prior
written consent or as otherwise required by law, Consultant will hold in confidence, not disclose to any other person or entity or use for Consultant’s own personal benefit or the benefit of any other person or entity all information regarding
Willbros, its affiliates, their respective employees, and the business activities conducted by Willbros or its affiliates which Consultant obtains or becomes aware of during the course of providing the Services, unless such information has become
publicly available other than as a result of a breach of this Agreement by Consultant. The requirements of this Paragraph 11 shall survive expiration or termination of this Agreement for a period of two (2) years. 
 12. NON-COMPETE. While this Agreement remains in force, Consultant will not compete with Willbros or its affiliates, or provide advice or
assistance to any enterprise or entity which is engaged or intends to engage in competition with Willbros or its affiliates. 
 13.
SOLICITATION OF EMPLOYEES. During the term of this Agreement, Consultant will not seek to employ or assist any other enterprise or entity with an effort to employ any employee of Willbros or its affiliates. 
 14. TERMINATION. Either party may terminate this Agreement for cause with immediate effect if the other of them fails to comply with its
obligations under this Agreement and does not cure such failure within ten (10) days after written notice of such failure has been provided. 
 Consultant shall have the right at his option to terminate this Agreement by giving fifteen (15) days’ written notice thereof to Willbros. 
 In the event of termination under this Paragraph 14, Willbros shall pay Consultant the compensation, if any, due under Paragraph 6 and the amounts, if any, for which Consultant is entitled to reimbursement under
Paragraph 7 through the date of termination. 
 15. NOTICES. Any notice required or permitted to be given under this Agreement shall
be in writing and shall be effective upon delivery to the party at the party’s address or email address stated herein. Either party may change such party’s addresses stated herein by giving notice of the change in accordance with this
Paragraph 15. 
  

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	 If to Willbros:        
	 	Willbros USA, Inc.
		 	Suite 1000
		 	4400 Post Oak Parkway
		 	Houston, Texas
		 	Facsimile:	 	(713) 403-8066
		 	Attention:	 	Dennis G. Berryhill
		 		 	Vice President and Secretary
		
	 If to Consultant:
	 	Warren L. Williams
		 	7111 Tera Vita Hills
		 	Houston, Texas 77069
		 	Email: wwilliams36@houston.rr.com

 16. ASSIGNMENT. All rights and obligations herein contained shall inure to the benefit of
and be binding upon Willbros, Consultant, their successors and their permitted assigns. Consultant shall not assign any rights or obligations under this Agreement without the prior written consent of Willbros. 
 17. GOVERNING LAW. This Agreement shall be governed and construed in accordance with the laws of the State of Texas, United States of America,
excluding any conflict of law or other provision referencing the laws of another jurisdiction. 
 18. ENTIRE AGREEMENT AND WAIVER.
This Agreement constitutes the entire agreement between the parties hereto with respect to the subject matter hereof and supersedes any other understanding entered into by or on account of the parties with respect to the subject matter hereof to the
extent inconsistent herewith. This Agreement may not be changed, modified or amended except in writing signed by the parties hereto. The failure of either party to exercise any rights under this Agreement for a breach thereof shall not be deemed to
be a waiver of such rights or a waiver of any subsequent breach. 
 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written. 
  

							
	 CONSULTANT
	  		  	WILLBROS
			
		  		  	Willbros USA, Inc.
				
	 /s/ Warren L. Williams
	  		  	By:	  	/s/ Dennis G. Berryhill
	 Warren L. Williams
	  		  		  	Dennis G. Berryhill
		  		  		  	Vice President and Secretary

  

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