Schlumberger 2013 Omnibus Stock Incentive Plan, as Amended and Restated as of July 19, 2017

Exhibit 10.15

SCHLUMBERGER

2013 OMNIBUS STOCK INCENTIVE PLAN

(Amended and Restated as of July 19, 2017)

1. Objectives. This Schlumberger 2013 Omnibus Stock Incentive Plan (this “Plan”) was adopted by Schlumberger Limited (the “Company”) in order to retain employees with a high degree of training, experience and ability, to attract new employees whose services are considered particularly valuable, to encourage the sense of proprietorship of such persons and to promote the active interest of such persons in the development and financial success of the Company and its Subsidiaries. These objectives are to be accomplished by making Awards under this Plan and thereby providing Participants with a proprietary interest in the growth and performance of the Company and its Subsidiaries.

2. Definitions. As used herein, the terms set forth below shall have the following respective meanings:

“Award” means the grant of any Option, Stock Appreciation Right, Stock Award, Cash Award or Performance Award, whether granted singly, in combination or in tandem, to a Participant pursuant to such applicable terms, conditions and limitations as the Committee may establish in accordance with the objectives of this Plan.

“Award Agreement” means the document (in written or electronic form) communicating the terms, conditions and limitations applicable of an Award. The Committee may, in its discretion, require that the Participant execute such Award Agreement, or may provide for procedures through which Award Agreements are made available but not executed. Any Participant who is granted an Award and who does not affirmatively reject the applicable Award Agreement shall be deemed to have accepted the terms of Award as embodied in the Award Agreement.

“Board” means the board of directors of the Company.

“Cash Award” means an Award denominated in cash.

“Code” means the Internal Revenue Code of 1986, as amended.

“Committee” means the Compensation Committee of the Board, and any successor committee thereto or such other committee of the Board as may be designated by the Board to administer this Plan in whole or in part including any subcommittee of the Board as designated by the Board.

“Common Stock” means the Common Stock, par value $0.01 per share, of the Company. “Dividend Equivalents” means, with respect to shares of Restricted Stock or Restricted

Stock Units, with respect to which shares are to be issued at the end of the Restriction Period, an amount equal to all dividends and other distributions (or the economic equivalent thereof) that are payable to shareholders of record during the Restriction Period on a like number of shares of Common Stock.

“Employee” means an employee of the Company or any of its Subsidiaries and an individual who has agreed to become an employee of the Company or any of its Subsidiaries and actually becomes such an employee within the following six months.

“Executive Officer” means a “covered employee” within the meaning of Section 162(m)(3) or any other executive officer designated by the Committee for purposes of exempting compensation payable under this Plan from the deduction limitations of Section 162(m).

“Fair Market Value” means, with respect to a share of Common Stock on a particular date, the mean between the highest and lowest composite sales price per share of the Common Stock, as reported on the consolidated transaction reporting system for the New York Stock Exchange for that date, or, if there shall have been no such reported prices for that date, the reported mean price on the last preceding date on which a composite sale or sales were effected on one or more of the exchanges on which the shares of Common Stock were traded shall be the Fair Market Value.

“Incentive Option” means an Option that is intended to comply with the requirements set forth in Section 422 of the Code.

“Non-Qualified Option” means an Option that is not intended to comply with the requirements set forth in Section 422 of the Code.

“Option” means a right to purchase a specified number of shares of Common Stock at a specified price.

“Participant” means an Employee to whom an Award has been made under this Plan.

“Performance Award” means an award made pursuant to this Plan to a Participant, which Award is subject to the attainment of one or more Performance Goals.

“Performance Goal” means one or more standards established by the Committee to determine in whole or in part whether a Performance Award shall be earned.

“Restricted Stock” means any Common Stock that is restricted or subject to forfeiture provisions.

“Restricted Stock Unit” means a unit evidencing the right to receive one share of Common Stock or equivalent value (as determined by the Committee) that is restricted or subject to forfeiture provisions.

“Restriction Period” means a period of time beginning as of the date upon which an Award of Restricted Stock or Restricted Stock Units is made pursuant to this Plan and ending as of the date upon which the Common Stock subject to such Award is issued (if not previously issued) no longer restricted or subject to forfeiture provisions.

“Section 162(m)” means Section 162(m) of the Code and any Treasury Regulations and guidance promulgated thereunder.

“Section 409A” means Section 409A of the Code and any Treasury Regulations and guidance promulgated thereunder.

“Stock Appreciation Right” or “SAR” means a right to receive a payment, in cash or Common Stock, equal to the excess of the Fair Market Value or other specified valuation of a specified number of shares of Common Stock on the date the right is exercised over a specified strike price, in each case, as determined by the Committee.

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“Stock Award” means an award in the form of shares of Common Stock or units denominated in shares of Common Stock.

“Subsidiary” means (i) in the case of a corporation, a “subsidiary corporation” of the Company as defined in Section 424(f) of the Code and (ii) in the case of a partnership or other business entity not organized as a corporation, any such business entity of which the Company directly or indirectly owns 50% or more of the voting, capital or profits interests (whether in the form of partnership interests, membership interests or otherwise).

3. Eligibility. All Employees of the Company or a Subsidiary are eligible for Awards under this Plan in the sole discretion of the Committee. No director of the Company who is not also an employee is eligible to participate in the Plan, nor is any employee who owns directly or indirectly stock possessing more than five percent (5%) of the total combined voting power or value of all classes of stock of the Company or any Subsidiary.

4. Common Stock Available for Awards. Subject to the provisions of paragraph 13 hereof, there shall be available for Awards under this Plan granted wholly or partly in Common Stock (including rights or options that may be exercised for or settled in Common Stock) an aggregate of 35 million shares of Common Stock. No more than 7.5 million shares of Common Stock may be the subject of Awards that are not Options or Stock Appreciation Rights. In the sole discretion of the Committee, 35 million shares of Common Stock may be granted as Incentive Options.

(a) In connection with the granting of an Option or other Award, the number of shares of Common Stock available for issuance under this Plan shall be reduced by the number of shares of Common Stock in respect of which the Option or Award is granted or denominated. For example, upon the grant of stock-settled SARs, the number of shares of Common Stock available for issuance under this Plan shall be reduced by the full number of SARs granted, and the number of shares of Common Stock available for issuance under this Plan shall not thereafter be increased upon the exercise of the SARs and settlement in shares of Common Stock, even if the actual number of shares of Common Stock delivered in settlement of the SARs is less than the full number of SARs exercised. However, Awards that by their terms do not permit settlement in shares of Common Stock shall not reduce the number of shares of Common Stock available for issuance under this Plan.

(b) Any shares of Common Stock that are tendered by a Participant or withheld as full or partial payment of withholding or other taxes or as payment for the exercise or conversion price of an Option or SAR under this Plan shall not be added back to the number of shares of Common Stock available for issuance under this Plan.

(c) Whenever any outstanding Option or other Award (or portion thereof) expires, is cancelled or forfeited or is otherwise terminated for any reason without having been exercised or payment having been made in the form of shares of Common Stock, the number of shares of Common Stock available for issuance under this Plan shall be increased by the number of shares of Common Stock allocable to the expired, forfeited, cancelled or otherwise terminated Option or other Award (or portion thereof). To the extent that any Award is forfeited, or any Option or SAR terminates, expires or lapses without being exercised, the shares of Common Stock subject to such Awards will not be counted as shares delivered under this Plan.

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(d) Shares of Common Stock delivered under the Plan in settlement of an Award issued or made (i) upon the assumption, substitution, conversion or replacement of outstanding awards under a plan or arrangement of an acquired entity or (ii) as a post-transaction grant under such a plan or arrangement of an acquired entity shall not reduce or be counted against the maximum number of shares of Common Stock available for delivery under the Plan, to the extent that the exemption for transactions in connection with mergers and acquisitions from the shareholder approval requirements of the New York Stock Exchange for equity compensation plans applies.

(e) Awards valued by reference to Common Stock that may be settled in equivalent cash value will count as shares of Common Stock delivered to the same extent as if the Award were settled in shares of Common Stock.

Consistent with the requirements specified above in this paragraph 4, the Committee may from time to time adopt and observe such procedures concerning the counting of shares against this Plan maximum as it may deem appropriate, including rules more restrictive than those set forth above to the extent necessary to satisfy the requirements of any national securities exchange on which the Common Stock is listed or any applicable regulatory requirement. The Committee and the appropriate officers of the Company shall be authorized to, from time to time, take all such actions as any of them may determine are necessary or appropriate to file any documents with governmental authorities, stock exchanges and transaction reporting systems as may be required to ensure that shares of Common Stock are available for issuance pursuant to Awards.

5. Administration.

(a) Authority of the Committee. This Plan shall be administered by the Committee, which shall have the powers vested in it by the terms of this Plan, such powers to include the authority (within the limitations described in this Plan):

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The Committee may correct any defect or supply any omission or reconcile any inconsistency in this Plan or in any Award in the manner and to the extent the Committee deems necessary or desirable to further Plan purposes or so as to avoid unanticipated consequences or address unanticipated events (including any temporary closure of a stock exchange on which the Common Stock is traded, disruption of communications or natural catastrophe) deemed by the Committee to be inconsistent with the purposes of the Plan or any Award Agreement, provided that no such action shall be taken absent shareholder approval to the extent required under Section 11. Any decision of the Committee in the interpretation and administration of this Plan shall lie within its sole discretion and shall be final, conclusive and binding on all parties concerned. All decisions and selections made by the Committee pursuant to the provisions of the Plan shall be made by a majority of its members unless subject to the Committee’s delegation of authority pursuant to paragraph 6 herein.

(b) Limitation of Liability. No member of the Committee or officer of the Company to whom the Committee has delegated authority in accordance with the provisions of paragraph 6 of this Plan shall be liable for anything done or omitted to be done by him or her, by any member of the Committee or by any officer of the Company in connection with the performance of any duties under this Plan, except for his or her own willful misconduct or as expressly provided by statute.

(c) Prohibition on Repricing of Awards. Other than in connection with a change in the Company’s capitalization (as described in Section 13), at any time when the exercise price of an Option or SAR is above the Fair Market Value of a share of Common Stock, the Company shall not, without shareholder approval, reduce the exercise price of such Option or SAR and shall not exchange such Option or SAR for a new Award with a lower (or no) exercise price or for cash.

6. Delegation of Authority. Except with respect to matters related to Awards to Executive Officers or other Awards intended to qualify as qualified performance-based compensation under Section 162(m), the Committee may delegate to the Chief Executive Officer and to other senior officers of the Company or to such other committee of the Board its duties under this Plan pursuant to such conditions or limitations as the Committee may establish.

7. Awards.

(a) The Committee shall determine the type or types of Awards to be made under this Plan and shall designate from time to time the Participants who are to be the recipients of such Awards. Each Award shall be embodied in an Award Agreement, which shall contain such terms, conditions and limitations as shall be determined by the Committee in its sole discretion. Awards may consist of those listed in this paragraph 7(a) and may be granted singly, in combination or in tandem. Awards may also be made in combination or in tandem with, in replacement of, or as alternatives to, grants or rights under this Plan or any other plan of the Company or any of its Subsidiaries, including the plan of any acquired entity; provided that, except as contemplated in paragraph 13 hereof, no Option may be issued

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in exchange for the cancellation of an Option with a higher exercise price nor may the exercise price of any Option be reduced. No Option may include provisions that “reload” the option upon exercise or that extend the term of an Option beyond what is the maximum period is specified in the Plan and/or Award Agreement. All or part of an Award may be subject to conditions established by the Committee, which may include, but are not limited to, continuous service with the Company and its Subsidiaries, achievement of specific Performance Goals. Upon the termination of employment by a Participant, any unexercised, deferred, unvested or unpaid Awards shall be treated as set forth in the applicable Award Agreement. Subject to the provisions below applicable to each type of Award, the terms, conditions and limitations applicable to any Awards shall be determined by the Committee.

(i) Option. An Award may be in the form of an Option. An Option awarded pursuant to this Plan may consist of an Incentive Option or a Non-Qualified Option and will be designated accordingly at the time of grant. The price at which shares of Common Stock may be purchased upon the exercise of an Option shall be not less than the Fair Market Value of the Common Stock on the date of grant. The term of an Option shall not exceed ten years from the date of grant.

(ii) Stock Appreciation Right. An Award may be in the form of a Stock Appreciation Right. The strike price for a Stock Appreciation Right shall not be less than the Fair Market Value of the Common Stock on the date on which the Stock Appreciation Right is granted. The term of a Stock Appreciation Right shall not exceed ten years from the date of grant.

(iii) Stock Award. An Award may be in the form of a Stock Award. Any Stock Award which is not a Performance Award shall have a minimum Restriction Period of three years from the date of grant, provided that (i) the Committee may provide for earlier vesting following a change of control or other specified events involving the Company or upon an Employee’s termination of employment by reason of death, disability or retirement, and (ii) vesting of a Stock Award may occur incrementally over the three-year minimum Restricted Period; provided, that up to 1.75 million shares of Common Stock shall be available for issuance as Stock Awards having a time-based Restriction Period of up to three years but not less than one year.

(iv) Cash Awards. An Award may be in the form of a Cash Award.

(v) Performance Award. Without limiting the type or number of Awards that may be made under the other provisions of this Plan, an Award may be in the form of a Performance Award. Any Stock Award which is a Performance Award shall have a minimum Restriction Period of one year from the date of grant, provided that the Committee may provide for earlier vesting following a change of control or other specified events involving the Company, or upon a termination of employment by reason of death, disability or retirement, or termination of service subject to the limitations specified below. The Committee shall set Performance Goals in its sole discretion which, depending on the extent to which they are met, will determine the value and/or amount of Performance Awards that will be paid out to the Participant and/or the portion of an Award that may be exercised.

(A) Non-Qualified Performance Awards. Performance Awards granted to Employees that are not intended to qualify as qualified performance-based compensation under Section 162(m) shall be based on achievement of such Performance Goals and be subject to such terms, conditions and restrictions as the Committee or its delegate shall determine.

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(B) Qualified Performance Awards. Performance Awards that are intended to qualify as qualified performance-based compensation under Section 162(m) shall be paid, vested or otherwise deliverable solely on account of the attainment of one or more pre-established, objective Performance Goals established and administered by the Committee in accordance with Section 162(m) prior to the earlier to occur of (x) 90 days after the commencement of the period of service to which the Performance Goal relates and (y) the lapse of 25% of the period of service (as scheduled in good faith at the time the goal is established), and in any event while the outcome is substantially uncertain. A Performance Goal is objective if a third party having knowledge of the relevant facts could determine whether the goal is met. Such a Performance Goal may be based on one or more business criteria that apply to a Participant, one or more business units, divisions or sectors of the Company, or the Company as a whole, and if so desired by the Committee, by comparison with a peer group of companies. A Performance Goal may include one or more of the following and need not be the same for each Participant.

Unless otherwise stated, such a Performance Goal need not be based upon an increase or positive result under a particular business criterion and could include, for example, maintaining the status quo, performance relative to a peer group determined by the Committee or limiting economic losses (measured, in each case, by reference to specific business criteria). In interpreting Plan provisions applicable to Performance Goals and qualified Performance Awards, it is the intent of this Plan to conform with Section 162(m), including, without limitation, Treasury Regulation §1.162-27(e)(2)(i), as to grants pursuant to this subsection and the Committee in establishing such goals and interpreting

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the Plan shall be guided by such provisions. Prior to the payment of any compensation based on the achievement of Performance Goals applicable to qualified Performance Awards, the Committee must certify in writing that applicable Performance Goals and any of the material terms thereof were, in fact, satisfied. Subject to the foregoing provisions, the terms, conditions and limitations applicable to any qualified Performance Awards made pursuant to this Plan shall be determined by the Committee to the extent permitted by Section 162(m).

(b) The Committee shall adjust the Performance Goals (either up or down) and the level of the Performance Award that a Participant may earn under this Plan, but only to the extent permitted pursuant to Section 162(m), if it determines that the occurrence of external changes or other unanticipated business conditions have materially affected the fairness of the goals and have unduly influenced the Company’s ability to meet them, including without limitation, events such as material acquisitions, changes in the capital structure of the Company, and extraordinary accounting changes. In addition, Performance Goals and Performance Awards shall be calculated without regard to any changes in accounting standards that may be required by the Financial Accounting Standards Board after such Performance Goals are established.

(c) Notwithstanding anything to the contrary contained in this Plan, no Participant may be granted, during any one-year period, Awards collectively consisting of (i) Options or Stock Appreciation Rights that are exercisable for or (ii) Stock Awards covering or relating to more than 1,000,000 shares of Common Stock (the limitation referred to as the “Stock-based Awards Limitations”). No Plan Participant who is an employee may be granted Awards consisting of cash (including Cash Awards that are granted as Performance Awards) in respect of any calendar year having a value determined on the Grant Date in excess of $20,000,000.

8. Award Payment; Dividends; Substitution; Fractional Shares.

(a) General. Payment of Awards may be made in the form of cash or Common Stock, or a combination thereof, and may include such restrictions as the Committee shall determine, including, in the case of Common Stock, restrictions on transfer and forfeiture provisions. If payment of an Award is made in the form of Restricted Stock, the applicable Award Agreement relating to such shares shall specify whether they are to be issued at the beginning or end of the Restriction Period. In the event that shares of Restricted Stock are to be issued at the beginning of the Restriction Period, the certificates evidencing such shares (to the extent that such shares are so evidenced) shall contain appropriate legends and restrictions that describe the terms and conditions of the restrictions applicable thereto. In the event that shares of Restricted Stock are to be issued at the end of the Restricted Period, the right to receive such shares shall be evidenced by book entry registration or in such other manner as the Committee may determine.

(b) Dividends and Interest. Rights to dividends or Dividend Equivalents may be extended to and made part of any Stock Awards, subject to such terms, conditions and restrictions as the Committee may establish. The Committee may also establish rules and procedures for the crediting of interest on deferred cash payments and Dividend Equivalents for Stock Awards.

(c) Fractional Shares. No fractional shares shall be issued or delivered pursuant to any Award under this Plan. The Committee shall determine whether cash, Awards or other property shall be issued or paid in lieu of fractional shares, or whether fractional shares or any rights thereto shall be forfeited or otherwise eliminated.

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9. Stock Option Exercise. The price at which shares of Common Stock may be purchased under an Option shall be paid in full at the time of exercise in cash or, if elected by the Participant, the Participant may purchase such shares either by means of tendering Common Stock or by authorizing the Company to withhold a number of shares of Common Stock otherwise deliverable on the exercise of the Option, in either case valued at Fair Market Value on the date of exercise, or any combination thereof. The Committee, in its sole discretion, shall determine acceptable methods for Participants to tender Common Stock or other Awards. In accordance with the rules and procedures established by the Committee for this purpose and subject to applicable law, Options may also be exercised through “cashless exercise” procedures approved by the Committee involving a broker or dealer approved by the Committee.

10. Taxes. The Company shall have the right to deduct applicable taxes from any Award payment and withhold, at the time of delivery or vesting of cash or shares of Common Stock under this Plan, an appropriate amount of cash or number of shares of Common Stock or a combination thereof for payment of taxes required by law or to take such other action as may be necessary in the opinion of the Company to satisfy all obligations for withholding of such taxes. Withholding of any taxes may be satisfied by (i) the transfer to the Company of shares of Common Stock theretofore owned by the holder of the Award or (ii) withholding from the shares of Common Stock otherwise deliverable under the Award, in either case with respect to which withholding is required, up to the maximum tax rate applicable to the Participant, as determined by the Committee. If shares of Common Stock are used to satisfy tax withholding, such shares shall be valued based on the Fair Market Value when the tax withholding is required to be made.

11. Amendment, Modification, Suspension or Termination. The Board or the Committee may amend, modify, suspend or terminate this Plan for the purpose of meeting or addressing any changes in legal requirements or for any other purpose permitted by law, except that (i) no amendment or alteration that would materially adversely affect the rights of any Participant under any Award previously granted to such Participant shall be made without the consent of such Participant and (ii) no amendment or alteration shall be effective prior to its approval by the shareholders of the Company to the extent shareholder approval is otherwise required by applicable legal requirements or the requirements of any exchange on which the Common Stock is listed. Notwithstanding the foregoing, no amendment may cause an Option or SAR to be repriced, replaced, regranted through cancellation or modified without shareholder approval (except in connection with a change in the Company’s capitalization as provided in paragraph 13), if the effect of such amendment would be to reduce the exercise price for the shares underlying such Option or SAR.

12. Assignability. Unless otherwise determined by the Committee in the Award Agreement, no Award or any other benefit under this Plan shall be assignable or otherwise transferable. Any attempted assignment of an Award or any other benefit under this Plan in violation of this paragraph 12 shall be null and void.

13. Adjustments.

(a) The existence of this Plan and Awards granted hereunder shall not affect in any way the right or power of the Company or its shareholders to make or authorize any adjustments, recapitalizations, reorganizations or other changes in the Company’s capital structure or its business, or any merger or consolidation of the Company, or any issue of bonds, debentures, preferred or prior preference stocks ahead of or affecting the shares of Common Stock or the rights thereof, or the dissolution or liquidation of the Company, or any sale or transfer of all or any part of its assets or business, or any other corporate act or proceeding, whether of a similar character or otherwise.

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(b) Except as hereinafter provided, the issue by the Company of shares of stock of any class, or securities convertible into shares of stock of any class, for cash or property, or for labor or services, either upon direct sale or upon exercise of rights or warrants to subscribe therefor, or upon conversion of shares or obligations of the Company convertible into such shares or other securities, shall not affect, and no adjustment by reason thereof shall be made with respect to, the number of shares of Common Stock subject to Awards granted hereunder.

(c) The shares of Common Stock with respect to which Awards may be granted hereunder are shares of the Common Stock of the Company as presently constituted, but if, and whenever, prior to the delivery by the Company or a subsidiary of all of the shares of Common Stock which are subject to the Awards or rights granted hereunder, the Company shall effect a subdivision or consolidation of shares or other capital readjustments, the payment of a stock dividend or other increase or reduction of the number of shares of the Common Stock outstanding without receiving compensation therefore in money, services or property, the number of shares of Common Stock subject to the Plan, as well as the Stock-based Awards Limitations described in paragraph 7(c) hereof, shall be proportionately adjusted and the number of shares of Common Stock with respect to which outstanding Awards or other property subject to an outstanding Award granted hereunder shall:

(i) in the event of an increase in the number of outstanding shares, be proportionately increased, and the cash consideration (if any) payable per share of Common Stock shall be proportionately reduced; and

(ii) in the event of a reduction in the number of outstanding shares, be proportionately reduced, and the cash consideration (if any) payable per share of Common Stock shall be proportionately increased.

(d) In the event of a corporate merger, consolidation, acquisition of property or stock, separation, spinoff, reorganization or liquidation, the Board may make such adjustments to Awards or other provisions for the disposition of Awards as it deems equitable, and shall be authorized, in its sole discretion, (i) to provide for the substitution of a new Award or other arrangement (which, if applicable, may be exercisable for such property or stock as the Board determines) for an Award or the assumption of the Award, regardless of whether in a transaction to which Section 424(a) of the Code applies, (ii) to provide, prior to the transaction, for the acceleration of the vesting and exercisability of, or lapse of restrictions with respect to, the Award, or (iii) to cancel any such Awards and to deliver to the Participants cash in an amount that the Board shall determine in its sole discretion is equal to the fair market value of such Awards on the date of such event, which in the case of Options or Stock Appreciation Rights shall be the excess of the Fair Market Value of a share of Common Stock on such date over the exercise price of such Award (for the avoidance of doubt, if such exercise price is greater than the Fair Market Value of a share of Common Stock on such date, the Option or Stock Appreciation Right may be canceled for no consideration).

(e) Notwithstanding the foregoing: (i) any adjustments made pursuant to paragraph 13 to Awards that are considered “deferred compensation” within the meaning of Section 409A shall be made in a manner which is intended to not result in accelerated or additional tax to a Participant pursuant to Section 409A; (ii) any adjustments made pursuant to paragraph 13 to Awards that are not considered “deferred compensation” subject to Section 409A of the Code shall be made in such a manner intended to ensure that after such adjustment, the Awards either (A) continue not to be subject to Section 409A of the Code or (B) do not result in accelerated or additional tax to a Participant pursuant to Section

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409A of the Code; and (iii) in any event, neither the Committee nor the Board shall have the authority to make any adjustments pursuant to paragraph 13 to the extent the existence of such authority would cause an Award that is not intended to be subject to Section 409A of the Code at the date of grant to be subject thereto as of the date of grant.

14. Restrictions. No Common Stock or other form of payment shall be issued with respect to any Award unless the Company shall be satisfied based on the advice of its counsel that such issuance will be in compliance with including, but not limited to, applicable federal and state securities laws. The Participant shall not exercise or settle any Award granted hereunder, and the Company or any Subsidiary will not be obligated to issue any shares of Common Stock or make any payments under any such Award if the exercise thereof or if the issuance of such shares of Common Stock or if the payment made shall constitute a violation by the recipient or the Company or any subsidiary of any provision of any applicable law or regulation of any governmental authority or any securities exchange on which the Common Stock is listed. Certificates evidencing shares of Common Stock delivered under this Plan (to the extent that such shares are so evidenced) may be subject to such stop transfer orders and other restrictions as the Committee may deem advisable under the rules, regulations and other requirements of the Securities and Exchange Commission, any securities exchange or transaction reporting system upon which the Common Stock is then listed or to which it is admitted for quotation and any applicable federal or state securities law. The Committee may cause a legend or legends to be placed upon such certificates (if any) to make appropriate reference to such restrictions.

15. Unfunded Plan. Insofar as it provides for Awards of cash, Common Stock or rights thereto, this Plan shall be unfunded. Although bookkeeping accounts may be established with respect to Participants who are entitled to cash, Common Stock or rights thereto under this Plan, any such accounts shall be used merely as a bookkeeping convenience. The Company shall not be required to segregate any assets that may at any time be represented by cash, Common Stock or rights thereto, nor shall this Plan be construed as providing for such segregation, nor shall the Company, the Board or the Committee be deemed to be a trustee of any cash, Common Stock or rights thereto to be granted under this Plan. Any liability or obligation of the Company to any Participant with respect to an Award of cash, Common Stock or rights thereto under this Plan shall be based solely upon any contractual obligations that may be created by this Plan and any Award Agreement, and no such liability or obligation of the Company shall be deemed to be secured by any pledge or other encumbrance on any property of the Company. Neither the Company nor the Board nor the Committee shall be required to give any security or bond for the performance of any obligation that may be created by this Plan.

16. Section 409A. This Plan is intended to provide compensation which is exempt from or which complies with Section 409A, and ambiguous provisions, if any, shall be construed in a manner that is compliant with or exempt from the application of Section 409A, as appropriate. This Plan shall not be amended in a manner that would cause the Plan or any amounts payable under the Plan to fail to comply with the requirements of Section 409A, to the extent applicable, and, further, the provisions of any purported amendment that may reasonably be expected to result in such non-compliance shall be of no force or effect with respect to the Plan. The Company shall neither cause nor permit any payment, benefit or consideration to be substituted for a benefit that is payable under this Plan if such action would result in the failure of any amount that is subject to Section 409A to comply with the applicable requirements of Section 409A. For purposes of Section 409A, each payment under this Plan shall be deemed to be a separate payment.

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Notwithstanding any provision of this Plan to the contrary, if the Participant is a “specified employee” within the meaning of Section 409A as of the date of the Participant’s termination of employment and the Company determines, in good faith, that immediate payment of any amounts or benefits under this Plan would cause a violation of Section 409A, then any amounts or benefits which are payable under this Plan upon the Participant’s “separation from service” within the meaning of Section 409A which (i) are subject to the provisions of Section 409A; (ii) are not otherwise excluded under Section 409A; and (iii) would otherwise be payable during the first six-month period following such separation from service, shall be paid on the first business day next following the earlier of (1) the date that is six months and one day following the date of termination or (2) the date of the Participant’s death.

17. Governing Law. This Plan and all determinations made and actions taken pursuant hereto, to the extent not otherwise governed by mandatory provisions of the Code or the securities laws of the United States, shall be governed by and construed in accordance with the laws of the State of Texas.

18. No Right to Employment. Nothing in this Plan or an Award Agreement shall interfere with or limit in any way the right of the Company or a Subsidiary to terminate any Participant’s employment or other service relationship at any time, nor confer upon any Participant any right to continue in the capacity in which he or she is employed or otherwise serves the Company or any Subsidiary.

19. Successors. All obligations of the Company under this Plan with respect to Awards granted hereunder shall be binding on any successor to the Company, whether the existence of such successor is the result of a direct or indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the business and/or assets of the Company.

20. Tax Consequences. Nothing in this Plan or an Award Agreement shall constitute a representation by the Company to a Participant regarding the tax consequences of any Award received by a Participant under this Plan. Although the Company may endeavor to (i) qualify a Performance Award for favorable U.S. or foreign tax treatment or (ii) avoid adverse tax treatment (e.g. under Section 409A), the Company makes no representation to that effect and expressly disavows any covenant to maintain favorable or unavoidable tax treatment. The Company shall be unconstrained in its corporate activities without regard to the potential negative tax impact on holders of Performance Awards under this Plan.

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21. Non-United States Participants. The Committee may grant awards to persons outside the United States under such terms and conditions as may, in the judgment of the Committee, be necessary or advisable to comply with the laws of the applicable foreign jurisdictions and, to that end, may establish sub-plans, modified vesting, exercise or settlement procedures and other terms and procedures. Notwithstanding the above, the Committee may not take any actions hereunder, and no Awards shall be granted, that would violate the Securities Exchange Act of 1934, the Code, any securities law, any governing statute, or any other applicable law.

22. Effectiveness. This Plan became effective January 17, 2013 upon its approval by the stockholders of the Company at the 2013 annual general meeting of stockholders. This Plan was amended by the Committee effective as of June 30, 2013 and was thereafter amended and restated effective as of July 19, 2017. This Plan shall continue in effect for a term of ten years after the date on which the stockholders of the Company approve this Plan, unless sooner terminated by action of the Board.

IN WITNESS WHEREOF, the Company has caused this Plan to be executed by its duly authorized officer on the date first written above.

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