Exhibit 3.36

XTERRA Fishing & Rental Tools Co.

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BY-LAWS

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ARTICLE I.

OFFICES

     Section 1. The registered office and principal place of business shall be located at 1822 Tucumcari, Houston, Harris county, 77090-2047.

     Section 2. The corporation may also have offices at such other places both within and without the state of Texas as the Board of Directors may from time to time determine or the business of the corporation may require.

ARTICLE II.

ANNUAL MEETINGS OF SHAREHOLDERS

     Section 1. All meetings of shareholders for the election of directors shall be field in the city of Houston, State of Texas, at such place as may be fixed from time to time by the Board of Directors. Said meetings may also be held at such other place either within or without the State of Texas as shall be designated from time to time by the Board of Directors and stated in the notice of the meeting.

     Section 2. Annual meetings of the shareholders, commencing with the year 2001, shall be held on the Third Thursday in May, if not a legal holiday, and if a legal holiday, then on he next secular day following, at 10:00 a.m., at which they shall elect by a plurality vote a Board of Directors, and transact such other business as may properly be brought before the meeting.

     Section 3. Written or printed notice of the annual meeting stating the place, day and hour of the meeting shall be delivered not less than

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ten nor more than fifty days before the date of the meeting, either personally or by mail, by or at the direction of the president, the secretary, or the officer or persons calling the meeting, to each shareholder of record entitled to voter at such meeting.

ARTICLE III.

SPECIAL MEETINGS OF SHAREHOLDERS

     Section 1. Special meetings of shareholders for any purpose other than the election of directors may be held at such time and place within or without the State of Texas as shall be stated in the notice of the meeting or in a duly executed waiver of notice thereof.

     Section 2. Special meetings of the shareholders, for any purpose or purposes, unless otherwise prescribed by statute or by the articles of incorporation, may be called by the president, the Board of Directors, or the holders of not less than one-tenth (1/10) of all the shares entitled to vote at the meeting.

     Section 3. Written or printed notice of a special meeting stating the place, day and hour of the meeting and the purpose or purposes fair which the meeting is called, shall be delivered not less than ten nor more than fifty days before the date of the meeting, either personally or by mail, by or at the direction of the president, the secretary, or the officer or persons calling the meeting, to each shareholder of record entitled to vote at such meeting.

     Section 4. The business transacted at any special meeting of shareholders shall be limited to the purposes stated in the notice.

ARTICLE IV.

QUORUM AND VOTING OF STOCK

     Section 1. The holders of a majority of the shares of stock issued and outstanding’ and entitled to vote, represented in person or by proxy,

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shall constitute a quorum at all meetings of the shareholders for the transaction of business except as otherwise provided by statute or by the articles of incorporation. If, however, such quorum shall not be present or represented at any meeting of the shareholders, the shareholders present in person or represented by proxy shall have power to adjourn the meeting from time to time, without notice other than announcement at the meeting, until a quorum shall be present or represented. At such adjourned meeting at which a quorum shall be present or represented any business may be transacted which might have been transacted at the meeting as originally notified.

     Section 2. If a quorum is present, the affirmative vote of a majority of the shares of stock represented at the meeting shall be the act of the shareholders unless the vote of a greater number of shared of stock is required by law or the articles of incorporation.

     Section 3. Each outstanding share of stock, having voting power, shall be entitled to one vote on each matter submitted to a vote at a meeting of shareholders. A shareholder may vote either in person or by proxy executed in writing by the shareholder or by his duly authorized attorney-in-fact.

     In the election for directors, the shareholders shall of have the right of cumulative voting.

     Section 4. Any action required to be taken at a meeting of the shareholders may be taken without a meeting if a consent in writing, setting forth the action so taken, shall be signed by all of the shareholders, entitled to vote with respect to the subject matter thereof.

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ARTICLE V.

DIRECTORS

     Section 1. The Board of Directors shall consist of such number of directors, not less than one (1) nor more than Five (5), as may be determined from time to time by resolution adopted by vote of at least two-thirds (2/3) of the shareholders of the corporation. The directors, other than the first Board of Directors, shall be elected at the annual meeting of the shareholders, and each director elected shall serve until the next succeeding annual meeting and until his successor shall have been elected and qualified. The first Board of Directors shall hold office until the first annual meeting of shareholders.

     Section 2. Any vacancy occurring in the Board of Directors may be filled by the affirmative vote of a majority of the remaining directors though less than a quorum of the Board of Directors. A director elected to fill a vacancy shall be elected for the unexpired portion of the term of his predecessor in office,

     Any directorship to be filled by reason of an increase in the number of directors shall be filled by election at an annual meeting or at a special meeting of shareholders called for that purpose. A director elected to fill a newly created directorship shall serve until the next succeeding annual meeting of shareholder and until his successor shall have been elected and qualified.

     Section 3. The business affairs of the corporation shall be managed by its Board of Directors which may exercise all such powers of the corporation and do all such lawful acts and thing as are not by statute or by the articles of incorporation or by these by-laws directed or required to be exercised or done by the shareholders.

     Section 4. The directors may keep the books of the corporation,

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except such as are required by law to be kept within the state, outside of the State of Texas, at such place or places as they may from time to time determine.

     Section 5. The Board of Directors, by the affirmative vote of a majority, of the directors then in office, and irrespective of any personal interest of any of its members, shall have authority to establish reasonable compensation of all directors for services to the corporation as directors, officers or otherwise.

ARTICLE VI.

MEETINGS OF THE BOARD OF DIRECTORS

     Section 1. Meetings of the Board of Directors, regular or special, may be held either within or without the State of Texas.

     Section 2. The first meeting of each newly elected Board of Directors shall be held at such time and place as shall be fixed by the vote of the shareholders at the annual meeting and no notice of such meeting shall be necessary to the newly elected directors in order legally to constitute the meeting, provided a quorum shall be present, or it may convene at such place and time as shall be fixed by the consent in writing of all the directors.

     Section 3. Regular meetings of the Board of Directors may be held upon such notice, or without notice, and at such time and at such place as shall from time to time be determined by the Board.

     Section 4. Special meetings of the Board of Directors may be called by the president on Two (2) days notice to each director, either personally or by mail or by telegram; special meetings shall be called by the president or secretary in like manner and on like notice on the written request of two directors.

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     Section 5. Attendance of a director at any meeting shall constitute a waiver of notice of such meeting, except where a director attends for the express purpose of objecting to the transaction of any business because the meeting of the Board of Directors need be specified in the notice or waiver of notice of such meeting.

     Section 6 . A majority of the directors shall constitute a quorum for the transaction of business unless a greater number is required by law or by the articles of incorporation. Except as otherwise specifically provided in these by-laws, the act of a majority of the directors present at any meeting at which a quorum is present shall be the act of the Board of Directors, unless the act of a greater number is required by statute or by the articles of incorporation. if a quorum shall not be present at any meeting of directors, the directors present thereat may adjourn the meeting from time to time, without notice other than announcement at the meeting, until a quorum shall be present.

     Section 7. Any action required to be taken at a meeting of the Board of Directors may be taken without a meeting, if consent in writing, setting forth the action so taken shall be signed by all of the directors entitled to vote with respect to the subject matter thereof.

ARTICLE VII.

EXECUTIVE COMMITTEE

     Section 1. The Board of Directors, by resolution adopted by two-thirds (2/3) of the number of directors fixed by the by-laws or otherwise, may designate two or more directors to constitute an executive committee, which committee, to the extent provided in such resolution, shall have and exercise all of the authority of the Board of Directors in the management of the corporation, except as otherwise required by law. Vacancies in the membership of the committee shall be

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filled by the Board of Directors at a regular or special meeting of the Board of Directors. The executive committee shall keep regular minutes of its proceedings and report the same to the Board when required.

ARTICLE VIII.

NOTICES

     Section 1. Whenever, under the provisions of the statutes or of the articles of incorporation or of these by-laws, notice is required to be given to any director or shareholder, it shall not be construed to mean personal notice, but such notice may be given in writing, by mail, addressed to such director or shareholder, at his address as it appears on the records of the corporation, with postage thereon prepaid, and such notice shall be deemed to be given at the time when the same shall be deposited in the United States mail. Notice to directors may also be given by telegram.

     Section 2. Whenever any notice whatever is required to be given under the provisions of the statutes or under the provisions of the articles of incorporation or these by-laws, a waiver thereof in writing signed by the person or persons entitled to such notice, whether before or after the time stated therein, shall be deemed equivalent to the giving of such notice.

ARTICLE IX.

OFFICERS

     Section 1. The officers of the corporation shall be chosen by the Board of Directors and shall be a president, a vice-president, a secretary and a treasurer. The Board of Directors may also choose additional vice-presidents, and one or more assistant secretaries and assistant treasurers.

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     Section 2. The Board of Directors at its first meeting after each annual meeting of shareholders shall choose a president, one or more vice-presidents, a secretary and a treasurer, none of whom need be a member of the Board.

     Section 3. The Board of Directors may appoint such other officers and agents as it shall deem necessary who shall hold their offices for such terms and shall exercise such powers and perform such duties as shall be determined, from time to time by the Board of Directors.

     Section 4. The salaries of all officers and agents of the corporation shall be fixed by the Board of Directors.

     Section 5. The officers of the corporation shall hold office until their successors are chosen and qualify. Any officer elected or appointed by the Board of Directors may be removed at any time by the affirmative vote of a majority of the Board of Directors. Any vacancy occurring in any office of the corporation shall be filled by the Board of Directors.

THE PRESIDENT

     Section 6. The president shall be the chief executive officer of the corporation, shall preside at all meetings of the shareholders and the Board of Directors, shall have general and active management of the business of the corporation and shall see that all orders and resolutions of the Board of Directors are carried into effect.

     Section 7. He shall execute bonds, mortgages and other contracts requiring a seal, under the seal of the corporation, except where required or permitted by law to be otherwise signed and executed and except where the signing, and execution thereof shall be expressly delegated by the Board of Directors to some other officer or agent of the corporation.

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THE VICE-PRESIDENTS

     Section 8. The vice-president, or if there shall be more than one, the vice-presidents in the order determined by the Board of Directors, shall, in the absence or disability of the president, perform the duties and exercise the powers of the president and shall perform such other duties and have such other powers as the Board of Directors may from time to time prescribe.

THE SECRETARY AND ASSISTANT SECRETARIES

     Section 9. The secretary shall attend all meetings of the Board of Directors and all meetings of the shareholders and record all the proceedings of the meetings of the corporation and of the Board of Directors in a book to be kept for that purpose and shall perform like duties for the standing committees when required. He shall give, or cause to; be given, notice of all meetings of the shareholders and special meetings of the Board of Directors, and shall perform such other duties as may be prescribed by the Board of Directors or president, under whose supervision he shall be. He shall have custody of the corporate seal of the corporation and he, or an assistant Secretary, shall have authority to affix the same to any instrument requiring it and when so affixed, it may be attested by his signature or by the signature of such assistant secretary. The Board of Directors may give general’ authority to any other officer to affix the seal of the corporation’ and to attest the affixing by his signature.

     Section 10. The assistant secretary, or if there be more than one, the assistant secretaries in the order determined by the Board of Directors, shall, in the absence of disability of the secretary, perform the duties and exercise the powers of the secretary and shall perform

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such other duties and have such other powers as the Board of Directors may from time to time prescribe.

THE TREASURER AND ASSISTANT TREASURERS

     Section 11. The treasurer shall have the custody of the corporate funds and securities and shall keep full and accurate accounts of receipts and disbursements in books belonging to the corporation and shall deposit all moneys and other valuable effects in the name and to the credit of the corporation in such depositories as may be designated by the Board of Directors.

     Section 12 He shall disburse the funds of the corporation as may be ordered by the Board of Directors, taking proper vouchers for such disbursements, and shall render to the president and the Board of Directors, at its regular meetings, or when the Board of Directors so requires, an account of all his transactions as treasurer and of the financial condition of the corporation.

     Section 13:. if required by the Board of Directors, he shall give the corporation a bond in such sum and with such surety or sureties as shall be satisfactory to the Board of Directors for the performance of the duties of his office. and for the restoration to the corporation, in case of his death, resignation, retirement or removal from office, of all books, papers, vouchers, money and other property of whatever kind in his possession or under his control belonging to the corporation.

     Section 14. The assistant treasurer, or, if there shall be more than one, the assistant treasurers in the order determined by the Board of Directors, shall, in the absence of disability of the treasurer, perform the duties and exercise the powers of the treasurer and shall perform such other duties and have such other powers as the Board of

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Directors may from time to time prescribe.

ARTICLE X.

CERTIFICATES FOR SHARES

     Section 1. The shares of the corporation shall be represented by certificates signed by the president and the secretary of the corporation, and may be sealed with the seal of the corporation or a facsimile thereof.

     When the corporation is authorized to issue shares of more than one class there shall be set forth upon the face or back of the certificate, or the certificate shall have a statement that the corporation will furnish to any shareholder upon request and without charge, a full statement of the designations, preferences, limitations and relative rights of the shares of each class authorized to be issued and, if the corporation is authorized to issue any preferred or special class in series, the variations in the relative rights and preferences between the shares of each such series so far as the same have been fixed and determined and the authority of the Board of Directors to fix and determine the relative rights and preferences of subsequent series. When the corporation is authorized to issue shares of more than one class, every certificate shall also set forth upon the face or the back of such certificate a statement that there is `set forth in the articles of incorporation on file in the office of the secretary of State a full statement of all the designations, preferences, limitations and relative rights of the shares of each class authorized to be issued and the corporation will furnish a copy of such statement to the record holder of the certificate without charge on written request to the corporation at its principal place of business or registered office. Every

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certificate shall 1884 ___theeon any information required to be set forth by the Texas Business corporation Act and such information shall be set forth in the manner provided in said Act.

     Section 2. The signatures of the officers of the corporation upon a certificate may be facsimiles if the certificate is countersigned by a transfer agent, or registered by a registrar, other than the corporation itself or an employee of the corporation. In case any officer who has signed or whose facsimile signature has been placed upon such certificate is issued, it may be issued by the corporation with the same effect as if he were such officer at the date of its issue.

LOST CERTIFICATES

     Section 3. The Board of Directors may direct a new certificate to be issued in place of any certificate previously issued by the corporation and alleged to have been lost or destroyed. when authorizing such issue of a new certificate, the Board of Directors, in its discretion and as a condition precedent to the issuance thereof, may prescribe such terms and conditions as it deems expedient, and may require such indemnities as it deems adequate, to protect the corporation from any claim that may be made against it with respect to any such certificate alleged to have been lost or destroyed,

TRANSFER OF SHARES

     Section 4. upon surrender to the corporation or the transfer agent of the corporation of a certificate representing shares duly ‘endorsed or accompanied by proper evidence, of succession, assignment or authority to transfer, a new certificate shall be issued to the person entitled thereto, and the old certificate canceled and the transaction recorded upon the books of the corporation.

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CLOSING OF TRANSFER BOOKS

     Section 5. For the purpose of determining shareholders entitled to notice of or to vote at any meeting of shareholders, or any adjournment thereof or entitled to receive payment of any dividend, or in order to make a determination of shareholders for any other proper purpose, the Board of Directors may provide that the stock transfer books shall be closed for a stated period but not to exceed, in any case, fifty days. If the stock transfer books shall be closed for the purpose of determining shareholders entitled to notice of or to vote at a meeting of shareholders, such books shall be closed for at least ten days immediately preceding such meeting. In lieu of closing the stock transfer books, the Board of Directors may fix in advance a date as the record date for any such determination of shareholders, such date in any case to be not more than fifty days and, in case of a meeting of shareholders, not less than ten days prior to the date on which the particular action requiring such determination of shareholders is to be taken. If the stock transfer books are not closed and no record date is fixed for the determination of shareholders entitled to notice of or to vote at a meeting of shareholders, or shareholders entitled to receive payment of a dividend, the date on which notice of the meeting is mailed or the date on which the resolution of the Board of Directors declaring such dividend is adopted, as the case may be, shall be the record date for such determination of shareholders. When a determination of shareholders entitled to vote at any meeting of shareholders has been made as provided in this section, such determination shall apply to any adjournment thereof.

REGISTERED SHAREHOLDERS

     Section 6. The corporation shall be entitled to recognize the

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exclusive right of a person registered on its books as the owner of shares to receive dividends, and to vote as such owner, and to hold liable for calls and assessments a person registered on its books as the owner of shares, and shall not be bound to recognize any equitable or other claim to or interest in such share or shares on the part of any other person, whether or not it shall have express or other notice thereof, except as otherwise provided by the laws of Texas.

LIST OF SHAREHOLDERS

     Section 7. The officer or agent having charge of the transfer books for shares shall make, at least ten days before each meeting of shareholders, a complete, list of the shareholders entitled to vote at such meeting, arranged in alphabetical order, with the address of each and the number of shares held by each, which list, for a period of ten days prior to such meeting, shall be kept on file at the registered office of the corporation and shall be subject to inspection by any shareholder at any time during usual business hours. Such list shall also be produced and kept open at the time an place of the meeting and shall be subject to the inspection of any shareholder the whole time of the meeting. The original share ledger or transfer book, or a duplicate thereof, shall be prima facie evidence as to who are the shareholders entitled to examine such list or share ledger or transfer book or to vote at any meeting of the shareholders.

ARTICLE XI.

GENERAL PROVISIONS

DIVIDENDS

     Section 1. Subject to the provisions of the articles of incorporation relating thereto, if any, dividends may be declared by the

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Board of Directors at any regular or special meeting, pursuant to law. Dividends may be paid in cash, in property or in shares of the capital stock, subject to any provisions of the articles of incorporation.

     Section 2. Before payment of any dividend, there may be set aside out of any funds of the corporation available for dividends such sum or sums as the directors from time to time, in their absolute discretion, think proper as a reserve fund to meet contingencies, or for equalizing dividends, or for repairing or maintaining any property of the corporation, or for such other purpose as the directors shall think conducive to the interest of the corporation, and the directors may modify or abolish any such reserve in the manner in which it was created.

CHECKS

     Section 3. All checks or demands for money and notes of the corporation shall be Signed by such officer or officers or such other person or persons as the Board of Directors may from time to time designate.

FISCAL YEAR

     Section 4. The fiscal year of the corporation shall be the calendar year.

SEAL

     Section 5. The corporate seal shall have inscribed thereon the name of the corporation, the year of its organization and the words “Corporate seal, Texas.” The seal may be used by causing it or a facsimile thereof to be impressed or affixed or in any manner reproduced.

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ARTICLE XII.

STOCKHOLDERS’ AGREEMENT

     Section 1. The corporation shall enter into a stockholders’ Agreement with all shareholders of the corporation and shall be bound by and act in accordance with the provisions thereof.

     Section 2. To the extent there are any inconsistencies between these by-laws and the aforesaid Stockholders’ Agreement, the provisions of the stockholders’ Agreement shall govern.

ARTICLE XIII.

AMENDMENTS

     Section 1. These by-laws may be altered, amended, or repealed or new by-laws may be adopted by the affirmative vote of two-thirds (2/3) of the members of the Board of Directors at any regular or special meeting of the board subject to repeal or change at any regular or special meeting of shareholders at which a quorum is present or represented, by the affirmative vote of a majority of the stock entitled to vote, provided notice of the proposed repeal or change be contained in the notice of such meeting.

END OF BY-LAWS

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