Document:

EX-4.12

 Exhibit 4.12 

AMENDED AND RESTATED 

AGREEMENT OF LIMITED PARTNERSHIP 

OF 
 FORUM GLOBAL TUBING
LP 
 THIS AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP of Forum Global Tubing LP, a Delaware limited partnership (the
“Partnership”), effective as of July 1, 2013 (this “Agreement”), is entered into and executed by Forum US, Inc., a Delaware corporation (“Forum” and in its capacity as the general partner of the Partnership, the
“General Partner”), and the limited partners set forth on the signature page hereto (collectively, the “Limited Partners”). 

RECITALS 
 WHEREAS, in
connection with the acquisition of the Partnership by the Partners pursuant to the Equity Purchase Agreement (the “Equity Purchase Agreement”) dated June 4, 2013, by and among Global Tubing, LLC, a Delaware limited liability company
(“GT”), the Partnership, ARC Global Tubing, LLC, a Delaware limited liability company a wholly-owned subsidiary of the Partnership (“ARC LLC”), the partners of the Partnership, Q-GT(V) Investment Partners, LLC, a Delaware limited
liability company, and the General Partner, a certificate of amendment to the Certificate of Limited Partnership of the Partnership was filed in the office of the Secretary of State of the State of Delaware on July 2, 2013 changing the name of
the Partnership from ARC Global Tubing, L.P. to Forum Global Tubing LP; 
 WHEREAS, effective on the closing of the transactions
contemplated under the Equity Purchase Agreement, Forum became the General Partner of the Partnership; 
 WHEREAS, the Partners deem it in
the best interest of the Partnership to amend and restate the First Amended and Restated Agreement of Limited Partnership of the Partnership dated as of December 21, 2009; 

AGREEMENT 
 NOW,
THEREFORE, in consideration of the foregoing Recitals and the mutual covenants and agreements contained herein, and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Amended and Restated
Agreement of Limited Partnership of ARC GT dated as of December 21, 2009 is hereby amended and restated in its entirety as follows: 

 ARTICLE I 

DEFINITIONS 
 The following
definitions shall for all purposes, unless otherwise clearly indicated to the contrary, apply to the terms used in this Agreement. 

“Act” means the Delaware Revised Uniform Limited Partnership Act, as amended, supplemented or restated from time to time, and any
successor to such statute. 
 “Certificate of Limited Partnership” means the Certificate of Limited Partnership of the Partnership
filed with the Secretary of State of the State of Delaware on April 23, 2007, as such Certificate of Limited Partnership may be amended, supplemented or restated from time to time. 

“General Partner” means the general partner of the Partnership. Forum US, Inc. is the General Partner of the Partnership. 

“Limited Partners” means the limited partners of the Partnership. Forum US, Inc. and FET Holdings LLC are the Limited Partners of
the Partnership. 
 “Partner” means the General Partner or any Limited Partner. 

“Percentage Interest” means the limited or general partnership interests in the Partnership as set forth in Section 2.7. 

ARTICLE II 

ORGANIZATIONAL MATTERS 

Section 2.1 Formation. The Partnership was formed as a Delaware limited partnership by the filing of the Certificate of Limited
Partnership. Except as expressly provided to the contrary in this Agreement, the rights, duties (including fiduciary duties), liabilities and obligations of the Partners and the administration, dissolution and termination of the Partnership shall be
governed by the Act. 
 Section 2.2 Name. The name of the Partnership shall be “Forum Global Tubing LP.” The
Partnership’s business may be conducted under any other name or names as determined by the General Partner. The General Partner may change the name of the Partnership at any time and from time to time. 

Section 2.3 Registered Office; Registered Agent; Principal Office; Other Offices. Unless and until changed by the General Partner,
the registered office of the Partnership in the State of Delaware shall be located at 1209 Orange Street, Wilmington, Delaware 19801, and the registered agent for service of process on the Partnership in the State of Delaware at such registered
office shall be NRAI Corporate Services. The principal office of the Partnership shall be located at 920 Memorial City Way, Suite 1000, Houston, Texas 77024, or such other place as the General Partner may from time to time designate. The Partnership
may maintain offices at such other place or places within or outside the State of Delaware as the General Partner determines to be necessary or appropriate. 

  
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 Section 2.4 Purpose. Subject to the further provisions hereof, the purpose of the
Partnership is to engage in any lawful business or investment activities in which a partnership formed under the Act may engage or participate. 

Section 2.5 Powers. The Partnership shall be empowered to do any and all acts and things necessary, appropriate, proper,
advisable, incidental to or convenient for the furtherance and accomplishment of the purpose described in Section 2.4 and for the protection and benefit of the Partnership. 

Section 2.6 Term. The term of the Partnership commenced upon the filing of the Certificate of Limited Partnership in accordance
with the Act and shall continue in existence until the dissolution of the Partnership in accordance with the provisions of Article VIII. The existence of the Partnership as a separate legal entity shall continue until the cancellation of the
Certificate of Limited Partnership as provided in the Act. 
 Section 2.7 Partnership Interests. The General Partner shall have
a 0% general partner interest in the Partnership and a 99.999% limited partner interest in the Partnership, and FET Holdings LLC shall have a 0.001% limited partner interest in the Partnership. 

ARTICLE III 
 CAPITAL
CONTRIBUTIONS 
 The Partners each hereby agree to contribute to the Partnership such cash, property or services as determined by the
General Partner, subject to the consent of each Limited Partner with respect to itself. 
 ARTICLE IV 

CAPITAL ACCOUNTS; ALLOCATIONS 

The General Partner may make such cash distributions as it, in its sole discretion, may determine without being limited to current or
accumulated income or gains from any Partnership funds, including, without limitation, Partnership revenues, capital contributions or borrowed funds; provided, however, that no such distribution shall be made if, after giving effect thereto,
the liabilities of the Partnership exceed the fair market value of the assets of the Partnership. In its sole discretion, the General Partner may, subject to the foregoing proviso, also distribute to the Partners other Partnership property,
or other securities of the Partnership or other entities. All distributions by the General Partner shall be made in accordance with the Percentage Interests of the Partners. 

  
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 ARTICLE V 

MANAGEMENT AND OPERATIONS OF BUSINESS 

Except as otherwise expressly provided in this Agreement, all powers to control and manage the business and affairs of the Partnership shall
be vested exclusively in the General Partner; the Limited Partners shall not have any power to control or manage the Partnership. 

ARTICLE VI 
 RIGHTS AND
OBLIGATIONS OF THE LIMITED PARTNERS 
 The Limited Partners shall have no liability under this Agreement except as provided in Article
III. 
 ARTICLE VII 

INDEMNIFICATION 

Section 7.1 The Partners and all officers, directors, agents and employees of the Partners and the Partnership shall be indemnified as of
right to the fullest extent not prohibited by law in connection with any actual or threatened action, suit or proceeding, civil, criminal, administrative, investigative or other (whether brought by or in the right of the Partnership or otherwise)
arising out of their service to the Partnership or to another enterprise at the request of the Partnership; provided, however, that the Partnership shall not indemnify any indemnified person in connection with a proceeding (or part thereof)
initiated by such person (other than a proceeding to enforce such person’s rights to indemnification under this Article) unless such proceeding (or part thereof) was authorized by the General Partner. 

Section 7.2 Employees of the Partnership who are not entitled to indemnification under Section 7.1 hereof shall be indemnified as of
right in connection with any actual or threatened action, suit or proceeding, civil, criminal, administrative, investigative or other (whether brought by or in the right of the Partnership or otherwise) arising out of their service to the
Partnership or to another enterprise at the request of the Partnership if, as determined by the Partnership in its sole discretion, such employee acted in good faith and in a manner he reasonably believed to be in, or not opposed to, the best
interests of the Partnership and, with respect to any criminal proceeding, had no reasonable cause to believe that his conduct was unlawful; provided, however, that the Partnership shall not indemnify an employee in connection with a
proceeding (or part thereof) initiated by such employee (other than a proceeding to enforce such person’s rights to indemnification under this Article) unless such proceeding (or part thereof) was authorized by the General Partner. 

Section 7.3 The Partnership may indemnify agents of the Partnership who are not entitled to indemnification under Sections 7.1 or 7.2
hereof with such scope and effect as determined by the Partnership. 
 Section 7.4 As soon as practicable after receipt by any person
entitled to indemnification hereunder of actual knowledge of any action, suit or proceeding, such indemnified person shall notify the Partnership thereof if a claim for indemnification in respect thereof may be or is being made by such indemnified
person against the Partnership under this Article. With respect to any such action, suit or proceeding, the Partnership will be entitled to participate therein at its own expense and may assume the defense thereof. After the Partnership

  
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notifies the indemnified person of its election to so assume the defense, the Partnership will not be liable to the indemnified person under this Article for any legal or other expenses
subsequently incurred by the indemnified person in connection with the defense. The Partnership shall not be obligated to indemnify an indemnified person under this Article for any amounts paid in settlement of any action or claim effected without
its written consent. 
 Section 7.5 The Partnership may purchase and maintain insurance to protect itself and any person against any
liability asserted against and incurred by him or her in respect of such service, whether or not the Partnership would have the power to indemnify him or her against such liability by law or under the provisions of this Article. The provisions of
this Article shall be applicable to persons who have ceased to be a person covered by this Article and shall inure to the benefit of the heirs, executors, and administrators of persons entitled to indemnity hereunder. 

Section 7.6 Indemnification under this Article shall include the right to be paid expenses incurred in advance of the final disposition
of any action, suit or proceeding for which indemnification is provided, upon receipt of an undertaking by or on behalf of the indemnified person to repay such amount if it ultimately shall be determined that he or she is not entitled to be
indemnified by the Partnership; provided, however, that the indemnified person shall reimburse the Partnership for any amounts paid by the Partnership as indemnification of expenses to the extent the indemnified person receives payment for
the same expenses from any insurance carrier or from another party. The indemnification rights granted herein are not intended to be exclusive of any other rights to which those seeking indemnification may be entitled and the Partnership may enter
into contractual agreements with any individual to provide such individual with indemnification rights as set forth in such agreement or agreements, which rights shall be in addition to the rights set forth in this section. 

Section 7.7 The provisions of this Article shall be applicable to actions, suits or proceedings commenced after the adoption hereof,
whether arising from acts or omissions occurring before or after the adoption hereof. 
 Section 7.8 Any indemnification under this
Article VII shall be satisfied solely out of the assets of the Partnership. In no event may an indemnified person subject the Partners to personal liability by reason of these indemnification provisions. 

ARTICLE VIII 

DISSOLUTION AND LIQUIDATION 

The Partnership shall be dissolved, and its affairs shall be wound up, upon: (1) the election of the General Partner to do so; or
(2) the entry of a decree of judicial dissolution of the Partnership. In winding up the affairs of the Partnership, the General Partner shall distribute the assets of the Partnership in the following order: (i) first, there shall be paid
the liabilities of the Partnership; and (ii) second, to the Partners in accordance with their Percentage Interests. 

  
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 ARTICLE IX 

AMENDMENT OF PARTNERSHIP AGREEMENT 

The General Partner may amend any provision of this Agreement, other than Article III, without the consent of the Limited Partners and may
execute, swear to, acknowledge, deliver, file and record whatever documents may be required in connection therewith. 
 ARTICLE X 

GENERAL PROVISIONS 

Section 10.1 Addresses and Notices. Any notice to the Partnership shall be deemed given if received by it in writing at the
principal office of the Partnership designated pursuant to Section 2.3. Any notice to a Partner shall be deemed given if received by it in writing at the address such Partner designates by notice to the Partnership. 

Section 10.2 Binding Effect. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their
successors and assigns. 
 Section 10.3 Integration. This Agreement constitutes the entire agreement among the parties
pertaining to the subject matter hereof and supersedes all prior agreements and understandings pertaining thereto. 
 Section 10.4
Invalidity of Provisions. If any provision or part of a provision of this Agreement is or becomes for any reason, invalid, illegal or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions and part
thereof contained herein shall not be affected thereby and this Agreement shall, to the fullest extent permitted by law, be reformed and construed as if such invalid, illegal or unenforceable provision, or part of a provision, had never been
contained herein, and such provision or part reformed so that it would be valid, legal and enforceable to the maximum extent possible. 

Section 10.5 Applicable Law. This Agreement shall be governed by and construed and enforced in accordance with the laws of the
State of Delaware, without regard to the principles of conflicts of law. 
 Section 10.6 Waiver. A waiver of any breach of any
of the terms of this Agreement shall be effective only if in writing and signed by the Partner against whom such waiver or breach is claimed. No waiver of any breach shall be deemed a waiver of any other subsequent breach. 

Section 10.7 Further Assurances. Each Partner shall execute such deeds, assignments, endorsements and other instruments and
documents and shall give such further assurances as shall be reasonably necessary to perform its obligations under this Agreement. 

Section 10.8 Counterparts. This Agreement may be executed in counterparts, all of which together shall constitute an agreement
binding on all the parties hereto, notwithstanding that all such parties are not signatories to the original or the same counterpart. 

[Signature Page to Follow] 

  
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 IN WITNESS WHEREOF, this Agreement has been duly executed by the General Partner and the Limited
Partners as of the date first above written. 
  

			
	 GENERAL PARTNER:
  

FORUM US, INC.

		
	By:	 	/s/ James W. Harris
		 	 Name: James W. Harris
 Title:
President

	
	 LIMITED PARTNERS:
  

FORUM US, INC.

		
	By:	 	 /s/ James W. Harris

		 	 Name: James W. Harris
 Title:
President

	
	FET HOLDINGS LLC
		
	By:	 	 /s/ James W. Harris

		 	 Name: James W. Harris
 Title:
President

 Signature page to Limited Partnership AgreementEX-4.13

 Exhibit 4.13 
  

					
		  		  	 State of Delaware

Secretary of State

Division of Corporations

Delivered 02:55 PM 03/21/2006

FILED 02:55 PM 03/21/2006

SRV 060269701 - 4129244 FILE

 CERTIFICATE OF INCORPORATION 

OF 
 FORUM INTERNATIONAL
HOLDINGS, INC. 
 FIRST: The name of the corporation is Forum International Holdings, Inc. 

SECOND: The address of its registered office in the State of Delaware is 1209 Orange Street, in the City of Wilmington, County of New Castle.
The name of its registered agent at such address is The Corporation Trust Company. 
 THIRD: The nature of the business or purposes to be
conducted or promoted is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of Delaware. 

FOURTH: The total number of shares of all classes of stock which the corporation shall have authority to issue is One Thousand
(1,000) shares of Common Stock of the par value of one cent ($0.01) per share. 
 FIFTH: The name of the incorporator is Alan R.
Boswell and his mailing address is c/o Vinson & Elkins L.L.P., 2300 First City Tower, 1001 Fannin, Houston, Texas 77002-6720. 

SIXTH: The name and mailing address of the sole director, who shall serve until the first annual meeting of stockholders or until his
successor is elected and qualified, is as follows: 
  

			
	 Name
	  	 Address

	James R. Burke	  	 One BriarLake Plaza, Suite 1175
 2000 W. Sam
Houston Parkway S
 Houston, Texas 77042

 The number of directors of the corporation shall be as specified in, or determined in the manner provided in, the bylaws.
Election of directors need not be by written ballot. 
 SEVENTH: In furtherance of, and not in limitation of, the powers conferred by
statute, the Board of Directors is expressly authorized to adopt, amend or repeal the bylaws of the corporation. 
 EIGHTH: Whenever a
compromise or arrangement is proposed between the corporation and its creditors or any class of them and/or between the corporation and its stockholders or any class of them, any court of equitable jurisdiction within the State of Delaware may, on
the application in a summary way of the corporation or of any creditor or stockholder thereof or on the application of any receiver or receivers appointed for the corporation under the provisions of Section 279 of

 
Title 8 of the Delaware Code or on the application of trustees in dissolution or of any receiver or receivers appointed for the corporation under the provisions of Section 279 of Title 8 of
the Delaware Code order a meeting of the creditors or class of creditors, and/or of the stockholders or class of stockholders of the corporation, as the case may be, to be summoned in such manner as the said court directs. If a majority in number
representing three-fourths in value of the creditors or class of creditors, and/or of the stockholders or class of stockholders of the corporation, as the case may be, agree to any compromise or arrangement and to any reorganization of the
corporation as a consequence of such compromise or arrangement, the said compromise or arrangement and the said reorganization shall, if sanctioned by the court to which the said application has been made, be binding on all the creditors or class of
creditors, and/or on all the stockholders or class of stockholders, of the corporation, as the case may be, and also on the corporation. 

NINTH: (a) No director of the corporation shall be liable to the corporation or its stockholders for monetary damages for breach of
fiduciary duty as a director, except for liability (i) for any breach of the director’s duty of loyalty to the corporation or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a
knowing violation of law, (iii) under Section 174 of the Delaware General Corporation Law, or (iv) for any transaction from which the director derived an improper personal benefit. 

(b) Indemnification and Insurance. 

(i) Right to Indemnification. (A) Each person who was or is made a party or is threatened to be made a party to or is involved in any
action, suit or proceeding, whether civil, criminal, administrative or investigative (hereinafter a “proceeding”), by reason of the fact that he or she, is or was a director or officer of the corporation, or serves at the request of the
corporation, in any capacity, any corporation, partnership or other entity in which the corporation has a partnership or other interest, including service with respect to employee benefit plans, whether the basis of such proceeding is alleged action
in an official capacity as a director, officer, employee or agent or in any other capacity while serving as a director, officer, employee or agent, shall be indemnified and held harmless by the corporation to the fullest extent authorized by the
Delaware General Corporation Law, as the same exists or may hereafter be amended (but, in case of any such amendment, only to the extent that such amendment permits the corporation to provide broader indemnification rights than said law permitted
the corporation to provide prior to such amendment), against all expense, liability and loss (including attorneys’ fees, judgments, fines, ERISA excise taxes or penalties and amounts paid or to be paid in settlement) reasonably incurred or
suffered by such person in connection therewith and such indemnification shall continue as to a person who has ceased to be a director, officer, employee or agent and shall inure to the benefit of his or her heirs, executors and administrators, and
(B) the corporation shall indemnify and hold harmless in such manner any person designated by the Board of Directors, or any committee thereof, as a person subject to this indemnification provision, and who was or is made a party or is
threatened to be made a party to a proceeding by reason of the fact that he, she or a person of whom he or she is the legal representative, is or was serving at the request of the Board of Directors of the corporation as a director, officer,
employee or agent of another corporation or a partnership, joint venture, trust or 

  
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other enterprise whether such request is made before or after the acts taken or allegedly taken or events occurring or allegedly occurring which give rise to such proceeding; provided, however,
that except as provided in subsection (b)(ii) of this Section, the corporation shall indemnify any such person seeking indemnification pursuant to this subsection in connection with a proceeding (or part thereof) initiated by such person only if
such proceeding (or part thereof) was authorized by the Board of Directors of the corporation. The right to indemnification conferred herein shall be a contract right based upon an offer from the corporation which shall be deemed to have been made
to a person subject to subsection (b)(i)(A) on the date hereof and to a person subject to subsection (b)(i)(B) on the date designated by the Board of Directors, shall be deemed to be accepted by such person’s service or continued service as a
director or officer of the corporation for any period after the offer is made and shall include the right to be paid by the corporation the expenses incurred in defending any such proceeding in advance of its final disposition; provided, however,
that if the Delaware General Corporation Law requires, the payment of such expenses incurred by a director or officer in his or her capacity as the director or officer (and not in any other capacity in which service was or is rendered by such person
while a director or officer, including, without limitation, service to an employee benefit plan) in advance of the final disposition of a proceeding, shall be made only upon delivery to the corporation of an undertaking, by or on behalf of such
director or officer, to repay all amounts so advanced if it shall ultimately be determined that such director or officer is not entitled to be indemnified under this Section or otherwise. The corporation may, by action of its Board of Directors,
provide indemnification to employees or agents of the corporation with the same scope and effect as the foregoing indemnification of directors and officers. 

(ii) Right of Claimant to Bring Suit. If a claim under Section (b)(i) of this Article is not paid in full by the corporation within thirty days
after a written claim has been received by the corporation, the claimant may at any time thereafter bring suit against the corporation to recover the unpaid amount of the claim and, if successful in whole or in part, the claimant shall be entitled
to be paid also the expense of prosecuting such claim. It shall be a defense to any such action (other than an action brought to enforce a claim for expenses incurred in defending any proceeding in advance of its final disposition where the required
undertaking, if any is required, has been tendered to the corporation) that the claimant has not met the standards of conduct which make it permissible under the Delaware General Corporation Law for the corporation to indemnify the claimant for the
amount claimed. Neither the failure of the corporation (including its Board of Directors, independent legal counsel, or its stockholders) to have made a determination prior to the commencement of such action that indemnification of the claimant is
proper in the circumstances because he or she has met the applicable standard of conduct set forth in the Delaware General Corporation Law, nor an actual determination by the corporation (including its Board of Directors, independent legal counsel,
or its stockholders) that the claimant has not met such applicable standard of conduct, shall be a defense to the action or create a presumption that the claimant has not met the applicable standard of conduct. 

  
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 (iii) Nonexclusivity of Rights. The right to indemnification and the payment of expenses incurred
in defending a proceeding in advance of its final disposition conferred in this Section shall not be exclusive of any right which any person may have or hereafter acquire under any statute, provision of the Certificate of Incorporation, bylaw,
agreement, vote of stockholders or disinterested directors or otherwise. 
 (iv) Insurance. The corporation may maintain insurance, at its
expense, to protect itself and any director officer, employee or agent of the corporation or another corporation, partnership, joint venture, trust or other enterprise against any such expense, liability or loss, whether or not the corporation would
have the power to indemnify such person against such expense, liability or loss under the Delaware General Corporation Law. 
 (v)
Severability. If any subsection of this Section (b) shall be deemed to be invalid or ineffective in any proceedings, the remaining subsections hereof shall not be affected and shall remain in full force and effect. 

TENTH: The corporation shall have the right, subject to any express provisions or restrictions contained in the certificate of incorporation
or bylaws of the corporation, from time to time, to amend the certificate of incorporation or any provision thereof in any manner now or hereafter provided by law, and all rights and powers of any kind conferred upon a director or stockholder of the
corporation by the certificate of incorporation or any amendment thereof are subject to such right of the corporation. 
 I, the
undersigned, being the incorporator hereinbefore named, for the purpose of forming a corporation pursuant to the General Corporation Law of the State of Delaware, do make this certificate, hereby declaring that this is my act and deed and that the
facts herein stated are true, and accordingly have hereunto set my hand this 21st day of March, 2006. 
  

	
	/s/ Alan R. Boswell
	Alan R. Boswell, Incorporator

  
 4 

					
		  		  	 State of Delaware

Secretary of State

Division of Corporations

Delivered 05:43 PM 10/24/2011

FILED 05:32 PM 10/24/2011

SRV 111130277 – 4129244 FILE

 STATE OF DELAWARE 

CERTIFICATE OF CHANGE 
 OF
REGISTERED AGENT AND/OR 
 REGISTERED OFFICE 

The Board of Directors of Forum International Holdings, Inc., a Delaware Corporation, on this 24th day of October, A.D. 2011, do hereby resolve and order that
the location of the Registered Office of this Corporation within this State be, and the same hereby is 160 Greentree Drive, Suite 101 Street, in the City of Dover, County of Kent Zip Code 19904. 

The name of the Registered Agent therein and in charge thereof upon whom process against this Corporation may be served, is National Registered Agents, Inc..

 The Corporation does hereby certify that the foregoing is a true copy of a resolution adopted by the Board of Directors at a meeting held as herein
stated. 
 IN WITNESS WHEREOF, said Corporation has caused this certificate to be signed by an authorized officer, the 24th day of
October, A.D., 2011. 
  

			
	By:	 	 /s/ Victor Alfano

		 	Authorized Officer
		
	Name:	 	 Victor Alfano

		 	Print or Type
		
	Title:	 	 Vice President

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