EX-10.1



 Exhibit 10.1 

Execution Version 
 PATTERSON-UTI ENERGY, INC. 
 $525,000,000 3.95% Senior Notes due 2028 

 
  

Purchase Agreement 

January 10, 2018 
 Goldman Sachs &
Co. LLC 
 200 West Street 
 New York, New York 10282-2198 

Merrill Lynch, Pierce, Fenner & Smith 

                     Incorporated 

One Bryant Park 
 New York, New York 10036 

Wells Fargo Securities, LLC 
 375 Park Avenue 

New York, New York 10152 
     As
representatives of the several Purchasers 
     named in Schedule I hereto, 

Ladies and Gentlemen: 

Patterson-UTI Energy, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms
and conditions set forth in this agreement (this “Agreement”), to issue and sell to the Purchasers named in Schedule I hereto (the “Purchasers”) an aggregate of $525,000,000 principal amount of its 3.95% Senior
Notes due 2028 (the “Securities”). The Company’s obligations under the Securities will be fully and unconditionally guaranteed (the “Guarantees”) as to the payment of principal, premium, if any, and interest,
on a senior basis, jointly and severally, by each of the guarantors listed on the signature pages of this Agreement (each, a “Guarantor” and, collectively, the “Guarantors”). 

 

	1.	The Company and each of the Guarantors represents and warrants to, and agrees with, each of the Purchasers that: 

  

	 	(a)	 A preliminary offering circular, dated January 5, 2018 (the “Preliminary Offering
Circular”) has been prepared in connection with the offering of the Securities. The Preliminary Offering Circular, as amended and supplemented immediately prior to the Applicable Time (as defined in Section 1(b)), is hereinafter
referred to as the “Pricing Circular”. Promptly after the Applicable Time, the Company will prepare and deliver to each Purchaser a final offering circular dated the date hereof (the “Final Offering Circular”),
which will consist of the 










	 	
Preliminary Offering Circular with such changes therein as are required to reflect the information contained in the amendments or supplements listed on Schedule III hereto, and from and
after the time such Final Offering Circular is delivered to each Purchaser, all references herein to the Offering Circular shall be deemed to be a reference to both the Pricing Disclosure Package (as defined below) and the Final Offering Circular.
Any reference to the Preliminary Offering Circular, the Pricing Circular or the Offering Circular shall be deemed to refer to and include all documents filed with the United States Securities and Exchange Commission (the
“Commission”) pursuant to Section 13(a), 13(c) or 15(d) of the United States Securities Exchange Act of 1934, as amended (the “Exchange Act”), on or prior to the date of such circular and incorporated by
reference therein and any reference to the Preliminary Offering Circular or the Offering Circular, as the case may be, as amended or supplemented, as of any specified date, shall be deemed to include (i) any documents filed with the Commission
pursuant to Section 13(a), 13(c) or 15(d) of the Exchange Act after the date of the Preliminary Offering Circular or the Offering Circular, as the case may be, and prior to such specified date and (ii) any Additional Issuer Information (as
defined in Section 5(f)) furnished by the Company prior to the completion of the distribution of the Securities; and all documents filed under the Exchange Act and so deemed to be included in the Preliminary Offering Circular, the
Pricing Circular or the Offering Circular, as the case may be, or any amendment or supplement thereto are hereinafter called the “Exchange Act Reports” (provided that where only sections of such documents are specifically incorporated by
reference, only such sections shall be considered to be part of the “Exchange Act Reports”). The Exchange Act Reports, when they were or are filed with the Commission, conformed or will conform in all material respects to the applicable
requirements of the Exchange Act and the applicable rules and regulations of the Commission thereunder; and no such documents were filed with the Commission since the Commission’s close of business on the business day immediately prior to the
date of this Agreement and prior to the execution of this Agreement, except as set forth on Schedule II(a) hereof. The Preliminary Offering Circular or the Offering Circular and any amendments or supplements thereto and the Exchange
Act Reports did not and will not, as of their respective dates, contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which
they were made, not misleading; provided, however, that this representation and warranty shall not apply to any statements or omissions made in reliance upon and in conformity with information furnished in writing to the Company by a
Purchaser through the Representatives expressly for use therein. 

  

	 	(b)	 For the purposes of this Agreement, the “Applicable Time” is 4:00 pm (Eastern time) on the date of this
Agreement; the Pricing Circular as supplemented by the information set forth in Schedule III hereto, taken together (collectively, the “Pricing Disclosure Package”) as of the Applicable Time, did not include any untrue
statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; and each Company Supplemental Disclosure Document (as
defined in Section 6(a)(i)) listed on Schedule II(b) hereto and each Permitted General Solicitation Material (as defined in Section 6(a)(i)) listed 



  
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on Schedule II(d) hereto) does not conflict with the information contained in the Pricing Circular or the Offering Circular and each such Company Supplemental Disclosure Document
and Permitted General Solicitation Material, as supplemented by and taken together with the Pricing Disclosure Package as of the Applicable Time, did not include any untrue statement of a material fact or omit to state any material fact necessary in
order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that this representation and warranty shall not apply to statements or omissions made in a Company
Supplemental Disclosure Document or Permitted General Solicitation Material in reliance upon and in conformity with information furnished in writing to the Company by a Purchaser through the Representatives expressly for use therein.


  

	 	(c)	Neither the Company nor any of its subsidiaries has sustained since the date of the latest audited financial statements included or incorporated by reference in the Pricing Circular any material loss or interference
with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, nor has there been any material adverse change, or any development
involving a prospective material adverse change, either individually or in the aggregate, in or affecting the management, condition, financial or otherwise, stockholders’ equity, results of operations or business of the Company and its
subsidiaries, taken as a whole (a “Material Adverse Effect”) otherwise than as set forth or contemplated in the Pricing Circular; and since the respective dates as of which information is given in the Pricing Circular, there
has not been any material change in the capital stock or long term debt of the Company or any of its subsidiaries otherwise than as set forth or contemplated in the Pricing Circular. 


 

	 	(d)	The Company and its subsidiaries have legal, valid and defensible title to substantially all of the interests in oil and gas properties described in the Pricing Circular and the Offering Circular and to substantially
all other real and personal property reflected in the Pricing Circular and the Offering Circular as assets owned by them, in each case free and clear of all liens, encumbrances and defects except such as are described in the Pricing Circular and the
Offering Circular or would not have a Material Adverse Effect; any other real property and buildings held under lease by the Company and its subsidiaries are held by them under valid, subsisting and enforceable leases, with such exceptions as are
not material and do not materially interfere with the use made and proposed to be made of such property and buildings by the Company and its subsidiaries. 

  

	 	(e)	 The Company has been duly incorporated and is validly existing as a corporation in good standing under the laws
of the State of Delaware, with corporate power and authority to own or lease its properties, as the case may be, and conduct its business as described in the Pricing Disclosure Package and the Final Offering Circular, and has been duly qualified as
a foreign corporation for the transaction of business and is in good standing under the laws of each other jurisdiction in which it owns or leases properties or conducts any business so as to require such qualification, or is subject to no material
liability or disability by reason of the failure to be so qualified in any such jurisdiction, except where the failure to be so qualified or to be in good standing in any such jurisdiction would not have a Material Adverse Effect; and each
subsidiary of the Company has been duly incorporated or formed and is validly 



  
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existing as an entity in good standing under the laws of its jurisdiction of incorporation or formation and is duly qualified as a foreign corporation or limited liability company for the
transaction of business and is in good standing under the laws of each other jurisdiction in which it owns or leases properties or conducts any business so as to require such qualification, or is subject to no material liability or disability by
reason of the failure to be so qualified in any such jurisdiction, except where the failure to be so qualified or to be in good standing in any such jurisdiction would not have a Material Adverse Effect. 


 

	 	(f)	The Company has an authorized capitalization as set forth in the Pricing Disclosure Package and the Final Offering Circular and all of the issued shares of capital stock of the Company have been duly and validly
authorized and issued and are fully paid and non-assessable; and all of the issued interests of each subsidiary of the Company organized under the laws of the States of Delaware or Texas have been duly and
validly authorized and issued, are fully paid (to the extent required by its certificate of incorporation or formation, as applicable, and its bylaws or limited liability company agreements, as applicable) and
non-assessable (except as such non-assessability may be affected by Sections 18-607 and
18-807 of the Delaware Limited Liability Company Act and Article 101.206 of the Texas Business Organizations Code) and (except for directors’ qualifying shares and except as otherwise set forth in the
Pricing Circular) are owned directly or indirectly by the Company, free and clear of all liens, encumbrances, equities or claims. 

  

	 	(g)	The Securities and the Guarantees have been duly authorized by the Company and the Guarantors, as applicable, and, when the Securities have been executed by the Company and authenticated by the Trustee (as defined
below) in accordance with the provisions of the base indenture to be dated as of the Time of Delivery (the “Base Indenture”), between the Company, the Guarantors and Wells Fargo Bank, National Association, as trustee (the
“Trustee”), and the first supplemental indenture to be dated as of the Time of Delivery (the “First Supplemental Indenture” and, together with the Base Indenture, the “Indenture”), between the
Company, the Guarantors and the Trustee, with the notation of Guarantee endorsed thereon, and when delivered to and paid for by the Purchasers in accordance with the terms of this Agreement, the Securities and the Guarantees will constitute valid
and legally binding obligations of the Company and each of the Guarantors, as applicable, entitled to the benefits of the Indenture, and enforceable against the Company and each of the Guarantors in accordance with their terms, except that the
enforcement thereof may be subject to (i) bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium or other similar laws now or hereafter in effect relating to creditors’ rights generally, (ii) general principles of
equity and the discretion of the court before which any proceeding therefor may be brought, regardless of whether considered in equity or at law and (iii) public policy, applicable law relating to fiduciary duties and indemnification and
contribution and an implied covenant of good faith and fair dealing (collectively, the “Enforceability Exceptions”); the Indenture has been duly authorized by the Company and each of the Guarantors and, when executed and delivered
by the Company, the Guarantors and the Trustee, the Indenture will constitute a valid and legally binding instrument, enforceable against the Company and each of the Guarantors in accordance with its terms, subject to the Enforceability Exceptions;
and the Securities, the Guarantees and the Indenture will conform in all material respects to the descriptions thereof in the Pricing Disclosure Package and the Final Offering Circular and will be in substantially the form previously delivered to
you. 


  
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	 	(h)	The Company and each of the Guarantors has all requisite corporate or limited liability company, as applicable, power to execute, deliver and perform its obligations under this Agreement. This Agreement has been duly
and validly authorized, executed and delivered by the Company and each of the Guarantors. 

  

	 	(i)	The Exchange and Registration Rights Agreement to be dated as of the Time of Delivery (the “Registration Rights Agreement”), which will be substantially in the form previously delivered to you, has been
duly authorized, and as of the Time of Delivery (as defined herein), will have been duly executed and delivered by the Company and each of the Guarantors, and will constitute a valid and legally binding instrument, enforceable against the Company
and each of the Guarantors in accordance with its terms, subject to the Enforceability Exceptions; and the Registration Rights Agreement will conform in all material respects to the descriptions thereof in the Pricing Disclosure Package and the
Final Offering Circular. 

  

	 	(j)	The 3.95% Senior Notes due 2028 (the “Exchange Securities”) to be offered in exchange for the Securities pursuant to the Registration Rights Agreement have been duly authorized by the Company and if and
when issued and authenticated in accordance with the terms of the Indenture and delivered in accordance with the exchange offer provided for in the Registration Rights Agreement (the “Exchange Offer”), will be validly issued and
delivered and will constitute valid and binding obligations of the Company entitled to the benefits of the Indenture, enforceable against the Company in accordance with their terms, subject to the Enforceability Exceptions, and will be entitled to
the benefits provided by the Indenture. 

  

	 	(k)	None of the transactions contemplated by this Agreement (including, without limitation, the use of the proceeds from the sale of the Securities) will violate or result in a violation of Regulations T, U, and X of the
Board of Governors of the Federal Reserve System, in each case as in effect on the date hereof. 

  

	 	(l)	Prior to the date hereof, neither the Company nor any of the Guarantors has taken any action designed to, or that would reasonably be expected to, cause or result in stabilization or manipulation of the price of the
Securities. 

  

	 	(m)	 The issue and sale of the Securities and the Guarantees and the compliance by the Company and the Guarantors, as
applicable, with the terms of the Securities, the Guarantees, the Indenture, the Registration Rights Agreement, the Exchange Securities and this Agreement and the consummation of the transactions contemplated herein and therein and the application
of the proceeds from the sale of the Securities as described under “Use of Proceeds” in the Pricing Disclosure Package will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a
default under, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company, the Guarantors or any of their respective subsidiaries is a party or by which the Company, the Guarantors or any of their
respective subsidiaries is bound or to which any of the property or assets of the Company, the Guarantors or any of their respective subsidiaries is subject, (ii) result in any




  
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violation of the provisions of the Certificate of Incorporation or Bylaws or equivalent organizational documents of the Company or any Guarantor or (iii) result in any violation of any
statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over the Company, the Guarantors or any of their respective subsidiaries or any of their properties, except, with respect to (i) and (iii)
above, for such conflicts, breaches, violations, order or defaults that would not result in a Material Adverse Effect; and no consent, approval, authorization, order, registration or qualification of or with any such court or governmental agency or
body is required for the issue and sale of the Securities or the Guarantees or the consummation by the Company and the Guarantors of the transactions contemplated by this Agreement, the Indenture or the Registration Rights Agreement, except
(A) for the filing of a registration statement by the Company with the Commission pursuant to the United States Securities Act of 1933, as amended (the “Act”) pursuant to the Registration Rights Agreement; (B) such
consents, approvals, authorizations, registrations or qualifications as may be required under state securities or Blue Sky laws in connection with the purchase and distribution of the Securities by the Purchasers; and (C) such that, if not
obtained, would not result in a Material Adverse Effect. 

  

	 	(n)	Neither the Company nor any of its subsidiaries is (i) in violation of its certificate of incorporation or formation, as applicable, or its bylaws or limited liability company agreement, as applicable, (in each
case, as amended or restated), (ii) in default in the performance or observance of any material obligation, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement, lease or other agreement or instrument to which it
is a party or by which it or any of its properties may be bound, (iii) in violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority, except, in the case of
(ii) or (iii) above, for such violations and defaults as would not result in a Material Adverse Effect. 

  

	 	(o)	The statements set forth in the Pricing Circular and the Offering Circular under the caption “Description of the Notes”, insofar as they purport to constitute a summary of the terms of the Securities, the
Guarantees and the Indenture, under the caption “Exchange Offer and Registration Rights,” insofar as they purport to constitute a summary of the terms of the Registration Rights Agreement, under the caption “Certain U.S. Federal
Income Tax Considerations” and under the caption “Plan of Distribution”, insofar as they purport to describe the provisions of the laws and documents referred to therein, are accurate and fair summaries of such matters in all
material respects. 

  

	 	(p)	Other than as set forth in the Pricing Disclosure Package and the Offering Circular, there are no legal or governmental proceedings pending to which the Company or any of its subsidiaries is a party or of which any
property of the Company or any of its subsidiaries is the subject which, if determined adversely to the Company or any of its subsidiaries, would individually or in the aggregate reasonably be expected to have a Material Adverse Effect; and, to the
best of the Company’s knowledge, no such proceedings are threatened or contemplated by governmental authorities or threatened by others. 


  
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	 	(q)	When the Securities are issued and delivered pursuant to this Agreement, the Securities will not be of the same class (within the meaning of Rule 144A under the Act) as securities which are listed on a national
securities exchange registered under Section 6 of the Exchange Act or quoted in a U.S. automated inter-dealer quotation system. 

  

	 	(r)	The Company is subject to Section 13 or 15(d) of the Exchange Act. 

  

	 	(s)	The Company, the Guarantors and their respective subsidiaries are not, and after giving effect to the offering and sale of the Securities and the application of the proceeds thereof, will not be, an “investment
company”, as such term is defined in the United States Investment Company Act of 1940, as amended (the “Investment Company Act”). 

  

	 	(t)	None of the Company, the Guarantors or any person acting on its or their behalf (other than the Purchasers, as to which no representation is made) has offered or sold the Securities by means of any general solicitation
or general advertising within the meaning of Rule 502(c) under the Act (other than by means of a Permitted General Solicitation, as defined below) or, with respect to Securities sold outside the United States to
non-U.S. persons (as defined in Rule 902 under the Act), by means of any directed selling efforts within the meaning of Rule 902 under the Act and the Company, any affiliate of the Company and any person
acting on its or their behalf has complied with and will implement the “offering restriction” within the meaning of such Rule 902. 

  

	 	(u)	Within the preceding six months, neither the Company nor any other person acting on behalf of the Company (other than the Purchasers, as to which no representation is made) has offered or sold to any person any
Securities, or any securities of the same or a similar class as the Securities, other than Securities offered or sold to the Purchasers hereunder. The Company will take reasonable precautions designed to insure that any offer or sale, direct or
indirect, in the United States or to any U.S. person (as defined in Rule 902 under the Act) of any Securities or any substantially similar security issued by the Company, within six months subsequent to the date on which the distribution of the
Securities has been completed (as notified to the Company by the Representatives), is made under restrictions and other circumstances reasonably designed not to affect the status of the offer and sale of the Securities in the United States and to
U.S. persons contemplated by this Agreement as transactions exempt from the registration provisions of the Act. 

  

	 	(v)	The Company and each of its subsidiaries maintains a system of internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) that
complies with the requirements of the Exchange Act and has been designed by the Company’s principal executive officer and principal financial officer, or under their supervision, to provide reasonable assurance regarding the reliability of
financial reporting that (i) material transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of financial statements for external
purposes in conformity with generally accepted accounting principles and to maintain asset accountability, (iii) access to assets is permitted only in accordance with management’s general or specific authorization and (iv) the
recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences. The Company’s internal control over financial reporting is effective and there are
no material weaknesses in the Company’s internal control over financial reporting. 


  
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	 	(w)	Since the date of the latest audited financial statements included or incorporated by reference in the Pricing Circular, there has been no change in the Company’s internal control over financial reporting that has
materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting. 

  

	 	(x)	The financial statements and the related notes thereto included or incorporated by reference in the Pricing Circular and the Offering Circular comply in all material respects with the applicable requirements of the Act
and the Exchange Act, as applicable, and present fairly in all material respects the financial position of the Company and its subsidiaries as of the dates indicated and the results of their operations and the changes in their cash flows for the
periods specified; such financial statements have been prepared in conformity with generally accepted accounting principles applied on a consistent basis throughout the periods covered thereby, and the supporting schedules included or incorporated
by reference in the Pricing Circular and the Offering Circular present fairly in all material respects the information required to be stated therein; and the other financial information included or incorporated by reference in the Pricing Circular
and the Offering Circular has been derived from the accounting records of the Company and its subsidiaries and presents fairly in all material respects the information shown thereby. 


 

	 	(y)	The Company and its subsidiaries maintain “disclosure controls and procedures” (as defined in Rule 13a-15(e) of the Exchange Act) that comply with the requirements of
the Exchange Act and that are designed to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in
the Commission’s rules and forms, including controls and procedures designed to ensure that such information is accumulated and communicated to the Company’s management as appropriate to allow timely decisions regarding required
disclosure; the Company and its subsidiaries have carried out evaluations of the effectiveness of their disclosure controls and procedures as required by Rule 13a-15e of the Exchange Act; such disclosure
controls and procedures are effective. 

  

	 	(z)	PricewaterhouseCoopers LLP, who have certified the consolidated financial statements of the Company and its subsidiaries, and have audited the Company’s internal control over financial reporting and
management’s assessment thereof are independent public accountants as required by the Act and the rules and regulations of the Commission thereunder and the rules and regulations of the Public Company Accounting Oversight Board.


  

	 	(aa)	None of the Company, the Guarantors, any of their respective subsidiaries nor, to the knowledge of the Company or the Guarantors, any director, officer, agent, employee, affiliate or other person associated with or
acting on behalf of the Company, the Guarantors or any of their respective subsidiaries has (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made
any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; (iii) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977; (iv) violated or is in
violation of any provision of the Bribery Act 2010 of the United Kingdom; or (v) made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment. 


  
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	 	(bb)	The operations of the Company, the Guarantors and their subsidiaries are and have been conducted at all times in compliance with the requirements of applicable anti-money laundering laws, including, but not limited to,
the Bank Secrecy Act of 1970, as amended by the USA PATRIOT ACT of 2001, and the rules and regulations promulgated thereunder, and the anti-money laundering laws of the various jurisdictions in which the Company, the Guarantors and their
subsidiaries conduct business (collectively, the “Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company, the Guarantors or
any of their subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge of the Company or the Guarantors, threatened. 

  

	 	(cc)	None of the Company, the Guarantors, any of their subsidiaries or, to the knowledge of the Company or the Guarantors, any director, officer, agent, employee or affiliate of the Company, the Guarantors or any of their
subsidiaries is currently the subject or the target of any sanctions administered or enforced by the U.S. Government, including, without limitation, the Office of Foreign Assets Control of the U.S. Department of the Treasury
(“OFAC”), or other relevant sanctions authority (collectively, “Sanctions”), and the Company will not directly or indirectly use the proceeds of the offering of the Securities hereunder, or lend, contribute or otherwise
make available such proceeds to any subsidiary, joint venture partner or other person or entity (i) to fund or facilitate any activities of or business with any person, or in any country or territory, that, at the time of such funding, is the
subject or the target of Sanctions or (ii) in any other manner that will result in a violation by any person (including any person participating in the transaction, whether as underwriter, advisor, investor or otherwise) of Sanctions.


  

	 	(dd)	There is and has been no failure on the part of the Company and any of the Company’s directors or officers, in their capacities as such, to comply with any provision of the Sarbanes-Oxley Act of 2002 and the rules
and regulations promulgated in connection therewith (the “Sarbanes-Oxley Act”), including Section 402 related to loans and Sections 302 and 906 related to certifications, in all material respects. 


 

	 	(ee)	The Company and its subsidiaries have filed all necessary federal, state and local income and franchise tax returns, subject to permitted extensions, in a timely manner (except in any case in which the failure to so
file would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect) and have paid all taxes required to be paid by any of them and, if due and payable, any related or similar assessment, fine or penalty levied
against any of them, except for any taxes, assessments, fines or penalties as may be being contested in good faith and by appropriate proceedings and for which any reserves required by GAAP have been created in the applicable financial statements
referred to in Section 1(x) above, or as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. 

  

	 	(ff)	Each of the Company and its subsidiaries carry, or are covered by, insurance in such amounts and with such deductibles and covering such risks as are generally deemed adequate and customary for their businesses. 



  
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	 	(gg)	Except as described in the Pricing Circular and the Offering Circular and except as would not, singly or in the aggregate, result in a Material Adverse Effect, (i) none of the Company or any of its subsidiaries is
in violation of any federal, state, local or foreign statute, law, rule, regulation, ordinance, or rule of common law or any formal judicial or administrative interpretation thereof, including any judicial or administrative order, consent, decree or
judgment, relating to pollution or protection of the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata) or wildlife, including, without limitation, laws and regulations relating to
the release or threatened release of chemicals, pollutants, contaminants, wastes, toxic substances, hazardous substances, petroleum or petroleum products, asbestos-containing materials or mold (collectively, “Hazardous Materials”)
or to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of, or exposure to, Hazardous Materials (collectively, “Environmental Laws”), (ii) the Company and its subsidiaries have all
permits, authorizations and approvals required under any applicable Environmental Laws and are each in compliance with their requirements, (iii) there are no pending or, to the knowledge of the Company, threatened administrative, regulatory or
judicial actions, suits, demands, demand letters, claims, liens, notices of noncompliance or violation, investigations or proceedings issued or received pursuant to any Environmental Law against the Company or any of its subsidiaries, and
(iv) to the knowledge of the Company, there are no events or circumstances that would reasonably be expected to form the basis of an order for clean-up or remediation, or any actions, suits or proceedings
by any private party or governmental body or agency, against or affecting the Company or any of its subsidiaries with respect to Hazardous Materials or any Environmental Laws. 


 

	2.	Subject to the terms and conditions herein set forth, the Company agrees to issue and sell to each of the Purchasers, and each of the Purchasers agrees, severally and not jointly, to purchase from the Company, at a
purchase price of 99.275% of the principal amount thereof, plus accrued interest, if any, from January 19, 2018 to the Time of Delivery hereunder, the principal amount of Securities set forth opposite the name of such Purchaser in Schedule I
hereto. 

  

	3.	Upon the authorization by you of the release of the Securities, the several Purchasers propose to offer the Securities for sale upon the terms and conditions set forth in this Agreement and the Offering Circular and
each Purchaser, acting severally and not jointly, hereby represents and warrants to, and agrees with the Company and the Guarantors that: 

  

	 	(a)	It will sell the Securities only to: (i) persons who it reasonably believes are “qualified institutional buyers” (“QIBs”) within the meaning of Rule 144A under the Act in transactions meeting
the requirements of Rule 144A, or (ii) upon the terms and conditions set forth in Annex I to this Agreement; 

  

	 	(b)	It is an “accredited investor” (within the meaning of Rule 501 under the Act); and 

  

	 	(c)	Other than with the prior consent of the Company and the Representatives, it will not offer or sell the Securities by any form of general solicitation or general advertising, including, but not limited to, the methods
described in Rule 502(c) under the Act. 


  
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	4.      (a)	The Securities to be purchased by each Purchaser hereunder will be represented by one or more definitive global Securities in book-entry form which will be deposited by or on behalf of the Company with The Depository
Trust Company (“DTC”) or its designated custodian. The Company will deliver the Securities to Goldman Sachs & Co. LLC, for the account of each Purchaser, against payment by or on behalf of such Purchaser of the purchase
price therefor by wire transfer in Federal (same day) funds, by causing DTC to credit the Securities to the account of Goldman Sachs & Co. LLC at DTC. The time and date of such delivery and payment shall be 9:30 a.m., New York City time, on
January 19, 2018 or such other time and date as Goldman Sachs & Co. LLC and the Company may agree upon in writing. Such time and date are herein called the “Time of Delivery”. 


 

	 	(b)	The documents to be delivered at the Time of Delivery by or on behalf of the parties hereto pursuant to Section 8 hereof, including the cross-receipt for the Securities and any additional documents requested by the
Purchasers pursuant to Section 8(j) hereof, will be delivered at such time and date at the office of Latham & Watkins LLP, 811 Main Street, Suite 3700, Houston, Texas 77002 (the “Closing Location”), and the Securities
will be delivered at the office of DTC (or its designated custodian), all at the Time of Delivery. 

  

	5.	The Company agrees with each of the Purchasers: 

  

	 	(a)	To prepare the Offering Circular in a form approved by you; prior to the date on which all of the Securities have been sold by you, to make no amendment or any supplement to the Offering Circular which shall be
disapproved by you promptly after reasonable notice thereof; and to furnish you with copies thereof; 

  

	 	(b)	Promptly from time to time to take such action as you may reasonably request to qualify the Securities for offering and sale under the securities laws of such jurisdictions as you may request and to comply with such
laws so as to permit the continuance of sales and dealings therein in such jurisdictions for as long as may be necessary to complete the distribution of the Securities, provided that in connection therewith neither the Company nor any Guarantor
shall be required to qualify as a foreign corporation or to file a general consent to service of process in any jurisdiction or subject itself to taxation in any jurisdiction where it is not then so subject; 


 

	 	(c)	To furnish the Purchasers with written and electronic copies of the Offering Circular and any amendment or supplement thereto in such quantities as you may from time to time reasonably request, and if, at any
time prior to the completion of the sale of the Securities by the Purchasers, any event shall have occurred as a result of which the Offering Circular as then amended or supplemented would include an untrue statement of a material fact or omit to
state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made when such Offering Circular is delivered, not misleading, or, if for any other reason it shall be necessary or
advisable during such period to amend or supplement the Offering Circular, to notify you and upon your request to prepare and furnish without charge to each Purchaser and to any dealer in securities as many written and electronic copies as
you may from time to time reasonably request of an amended Offering Circular or a supplement to the Offering Circular which will correct such statement or omission or effect such compliance; 


  
 11 









	 	(d)	During the period beginning from the date hereof and continuing until the date that is 45 days after the Time of Delivery, not to offer, issue, sell, contract to sell, pledge, grant any option to purchase, make any
short sale or otherwise transfer or dispose of, directly or indirectly, or file with or confidentially submit to the Commission a registration statement under the Act relating to any securities of the Company that are substantially similar to the
Securities (other than the issuance of Exchange Securities pursuant to, or the filing of a registration statement pursuant to, the Registration Rights Agreement), or publicly disclose the intention to make any offer, sale, pledge, disposition or
filing without the prior written consent of each of the Representatives; 

  

	 	(e)	Not to be or become, at any time prior to the expiration of two years after the Time of Delivery, an open-end investment company, unit investment trust, closed-end investment company or face-amount certificate company that is or is required to be registered under Section 8 of the Investment Company Act; 


 

	 	(f)	At any time, for so long as any of the Securities remain outstanding and are “restricted securities” within the meaning of Rule 144, when the Company is not subject to Section 13 or 15(d) of the Exchange
Act, for the benefit of holders from time to time of Securities, to furnish at its expense and in accordance with the Indenture, upon request, to holders of Securities and prospective purchasers of Securities information (the “Additional
Issuer Information”) satisfying the requirements of subsection (d)(4)(i) of Rule 144A under the Act; 

  

	 	(g)	Except for such documents that are publicly available on EDGAR, to furnish to the holders of the Securities as soon as practicable after the end of each fiscal year an annual report of the Company (including a balance
sheet and statements of income, stockholders’ equity and cash flows of the Company and its consolidated subsidiaries certified by independent public accountants) and, as soon as practicable after the end of each of the first three quarters of
each fiscal year (beginning with the fiscal quarter ending after the date of the Offering Circular), to make available to stockholders of the Company consolidated summary financial information of the Company and its subsidiaries for such quarter in
reasonable detail; 

  

	 	(h)	During the period of one year after the Time of Delivery, the Company will not, and will not permit any of its “affiliates” (as defined in Rule 144 under the Act) to, resell any of the Securities which
constitute “restricted securities” under Rule 144 that have been reacquired by any of them (other than pursuant to a registration statement that has been declared effective under the Act); and 


 

	 	(i)	To use the net proceeds received by the Company from the sale of the Securities pursuant to this Agreement in the manner specified in the Pricing Circular under the caption “Use of Proceeds”.


  

	6.	

  

	 	(a)	 The Company and each of the Guarantors represents and agrees that, without the prior consent of each of the
Representatives, it and its affiliates and any other person acting on its or their behalf (other than the Purchasers, as to which no statement is given) (x) have not made and will not make any offer relating to the Securities that, if the
offering of the Securities contemplated by this Agreement were conducted as a public offering pursuant to a 



  
 12 









	 	
registration statement filed under the Act with the Commission, would constitute an “issuer free writing prospectus,” as defined in Rule 433 under the Act (any such offer is hereinafter
referred to as a “Company Supplemental Disclosure Document”) and (y) have not solicited and will not solicit offers for, and have not offered or sold and will not offer or sell, the Securities by means of any form of general
solicitation or general advertising within the meaning of Rule 502(c) of Regulation D other than any such solicitation listed on Schedule II(d) (each such solicitation, a “Permitted General Solicitation”; each written general
solicitation document listed on Schedule II(d), a “Permitted General Solicitation Material”). 

  

	 	(b)	Each Purchaser, severally and not jointly, represents and agrees that, without the prior consent of the Company and each of the Representatives, other than one or more term sheets relating to the Securities containing
customary information and conveyed to purchasers of securities or any Permitted General Solicitation Material, it has not made and will not make any offer relating to the Securities that, if the offering of the Securities contemplated by this
Agreement were conducted as a public offering pursuant to a registration statement filed under the Act with the Commission, would constitute a “free writing prospectus,” as defined in Rule 405 under the Act (any such offer (other than any
such term sheets and any Permitted General Solicitation Material), is hereinafter referred to as a “Purchaser Supplemental Disclosure Document”). 


 

	 	(c)	Any Company Supplemental Disclosure Document, Purchaser Supplemental Disclosure Document or Permitted General Solicitation Material, the use of which has been consented to by the Company and each of the Representatives,
is listed as applicable on Schedule II(b), Schedule II(c) or Schedule II(d) hereto, respectively. 

  

	7.	The Company and each of the Guarantors, jointly and severally, covenants and agrees with the several Purchasers that the Company and the Guarantors will pay or cause to be paid the following: (i) the fees,
disbursements and expenses of the Company’s and the Guarantors’ counsel and accountants in connection with the issue of the Securities and all other expenses in connection with the preparation, printing, reproduction and filing of the
Preliminary Offering Circular and the Offering Circular and any amendments and supplements thereto and the mailing and delivering of copies thereof to the Purchasers and dealers; (ii) the cost of printing or producing any Agreement among
Purchasers, this Agreement, the Indenture, the Registration Rights Agreement, the Securities, the Blue Sky Memorandum, closing documents (including any compilations thereof), Permitted General Solicitation Materials and any other documents in
connection with the offering, purchase, sale and delivery of the Securities; (iii) all expenses in connection with the qualification of the Securities for offering and sale under state securities laws as provided in Section 5(b) hereof,
including the reasonable fees and disbursements of counsel for the Purchasers in connection with such qualification and in connection with the Blue Sky and legal investment surveys; (iv) any fees charged by securities rating services for rating
the Securities; (v) the cost of preparing the Securities; (vi) the fees and expenses of the Trustee and the fees and disbursements of counsel for the Trustee in connection with the Indenture and the Securities; (vii) 50% of all costs and
expenses incurred in connection with any “road show” presentation to potential purchasers of the Securities; and (viii) all other costs and expenses incident to the performance of its obligations hereunder which are not otherwise
specifically provided for in this Section. It is understood, however, that, except as provided in this Section, and Sections 9 and 12 hereof, the Purchasers will pay all of their own costs and expenses, including the fees of their counsel, transfer
taxes on resale of any of the Securities by them, and any advertising expenses connected with any offers they may make. 


  
 13 









	8.	The obligations of the Purchasers hereunder shall be subject, in their discretion, to the condition that all representations and warranties and other statements of the Company and the Guarantors herein are, at and as of
the Time of Delivery, true and correct, the condition that the Company and each of the Guarantors shall have performed all of its obligations hereunder theretofore to be performed, and the following additional conditions: 


 

	 	(a)	Latham & Watkins LLP, counsel for the Underwriters, shall have furnished to you a written legal opinion or opinions, dated the Time of Delivery, covering the matters referred to therein as well as such other
related matters as you may reasonably request, and such counsel shall have received such papers and information as they may reasonably request to enable them to pass upon such matters; 


 

	 	(b)	Gibson, Dunn & Crutcher LLP, counsel for the Company, shall have furnished to you a written legal opinion, dated the Time of Delivery, covering the matters reasonably requested by you substantially to the
effect set forth in Exhibit A hereto; 

  

	 	(c)	On the date of the Offering Circular concurrently with the execution of this Agreement and also at the Time of Delivery, PricewaterhouseCoopers LLP shall have furnished to you a letter or letters, dated the respective
dates of delivery thereof, in form and substance satisfactory to you; 

  

	 	(d)	(i) Neither the Company nor any of its subsidiaries shall have sustained since the date of the latest audited financial statements included in the Pricing Circular any loss or interference with its business from fire,
explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, otherwise than as set forth or contemplated in the Pricing Circular, and (ii) since the
respective dates as of which information is given in the Pricing Circular there shall not have been any change in the capital stock or long-term debt of the Company or any of its subsidiaries or any change, or
any development involving a prospective change, in or affecting the general affairs, management, financial position, stockholders’ equity or results of operations of the Company and its subsidiaries, taken as a whole, otherwise than as set
forth or contemplated in the Pricing Circular, the effect of which, in any such case described in clause (i) or (ii), is in your judgment so material and adverse as to make it impracticable or inadvisable to proceed with the offering or the
delivery of the Securities on the terms and in the manner contemplated in this Agreement and in each of the Pricing Disclosure Package and the Offering Circular; 

  


	 	(e)	On or after the Applicable Time (i) no downgrading shall have occurred in the rating accorded the Company’s debt securities by any “nationally recognized statistical rating organization”, as that
term is defined by the Commission for purposes of Rule 436(g)(2) under the Act, and (ii) no such organization shall have publicly announced that it has under surveillance or review, with possible negative implications, its rating of any of the
Company’s debt securities; 


  
 14 









	 	(f)	On or after the Applicable Time there shall not have occurred any of the following: (i) a suspension or material limitation in trading in securities generally on the New York Stock Exchange or the NASDAQ;
(ii) a suspension or material limitation in trading in the Company’s securities on the NASDAQ; (iii) a general moratorium on commercial banking activities declared by either Federal or New York State authorities or a material
disruption in commercial banking or securities settlement or clearance services in the United States; (iv) the outbreak or escalation of hostilities involving the United States or the declaration by the United States of a national emergency or
war or (v) the occurrence of any other calamity or crisis or any change in financial, political or economic conditions in the United States or elsewhere, if the effect of any such event specified in clause (iv) or (v) in your judgment
makes it impracticable or inadvisable to proceed with the offering or the delivery of the Securities on the terms and in the manner contemplated in the Pricing Disclosure Package and the Offering Circular; 


 

	 	(g)	The Purchasers shall have received a counterpart of the Registration Rights Agreement that shall have been executed and delivered by duly authorized officers of the Company and each of the Guarantors; 


 

	 	(h)	The Purchasers shall have received an executed original copy of the Indenture; 

  

	 	(i)	The Securities shall be eligible for clearance and settlement through the facilities of DTC; and 

  

	 	(j)	The Company shall have furnished or caused to be furnished to you at the Time of Delivery certificates of officers of the Company satisfactory to you as to the accuracy of the representations and warranties of the
Company and the Guarantors herein at and as of such Time of Delivery, as to the performance by the Company and the Guarantors of all of their obligations hereunder to be performed at or prior to such Time of Delivery, as to the matters set forth in
subsection (e) of this Section and as to such other matters as you may reasonably request. 

  

	9.	 (a) The Company and each of the Guarantors, jointly and severally, will indemnify and hold harmless each
Purchaser against any losses, claims, damages or liabilities, joint or several, to which such Purchaser may become subject, under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out
of or are based upon an untrue statement or alleged untrue statement of a material fact contained in any Preliminary Offering Circular, the Pricing Circular, the Pricing Disclosure Package, the Offering Circular, or any amendment or
supplement thereto, any Company Supplemental Disclosure Document, any Permitted General Solicitation Material or arise out of or are based upon the omission or alleged omission to state therein a material fact necessary in order to make the
statements therein, in the light of the circumstances under which they are made, not misleading, and will reimburse each Purchaser for any legal or other expenses reasonably incurred by such Purchaser in connection with investigating or defending
any such action or claim as such expenses are incurred; provided, however, that the Company and the Guarantors shall not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based
upon an untrue statement or alleged untrue statement or omission or alleged omission made in any Preliminary Offering Circular, the Pricing Circular, the Pricing 



  
 15 









	 	
Disclosure Package, the Offering Circular or any such amendment or supplement, any Company Supplemental Disclosure Document or any Permitted General Solicitation Material, in reliance upon and in
conformity with written information furnished to the Company by any Purchaser through the Representatives expressly for use therein. 

  

	 	(b)	Each Purchaser, severally and not jointly, will indemnify and hold harmless the Company and each Guarantor against any losses, claims, damages or liabilities to which the Company and the Guarantors may become subject,
under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon an untrue statement or alleged untrue statement of a material fact contained in any Preliminary
Offering Circular, the Pricing Circular, the Pricing Disclosure Package, the Offering Circular, or any amendment or supplement thereto, or any Company Supplemental Disclosure Document, any Permitted General Solicitation Material or arise out of or
are based upon the omission or alleged omission to state therein a material fact necessary in order to make the statements therein, in the light of the circumstances under which they are made, not misleading, in each case to the extent, but only to
the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in any Preliminary Offering Circular, the Pricing Circular, the Pricing Disclosure Package, the Offering Circular or any such amendment or
supplement, any Company Supplemental Disclosure Document or any Permitted General Solicitation Material, in reliance upon and in conformity with written information furnished to the Company by such Purchaser through the Representatives expressly for
use therein; and each Purchaser will reimburse the Company and the Guarantors for any legal or other expenses reasonably incurred by the Company and the Guarantors in connection with investigating or defending any such action or claim as such
expenses are incurred. 

  

	 	(c)	 Promptly after receipt by an indemnified party under subsection (a) or (b) above of notice of the
commencement of any action, such indemnified party shall, if a claim in respect thereof is to be made against the indemnifying party under such subsection, notify the indemnifying party in writing of the commencement thereof; but the omission so to
notify the indemnifying party shall not relieve it from any liability which it may have to any indemnified party under such subsection except to the extent it has been materially prejudiced. In case any such action shall be brought against any
indemnified party and it shall notify the indemnifying party of the commencement thereof, the indemnifying party shall be entitled to participate therein and, to the extent that it shall wish, jointly with any other indemnifying party similarly
notified, to assume the defense thereof, with counsel reasonably satisfactory to such indemnified party (who shall not, except with the consent of the indemnified party, be counsel to the indemnifying party), and, after notice from the indemnifying
party to such indemnified party of its election so to assume the defense thereof, the indemnifying party shall not be liable to such indemnified party under such subsection for any legal expenses of other counsel or any other expenses, in each case
subsequently incurred by such indemnified party, in connection with the defense thereof other than reasonable costs of investigation, provided, however, such indemnified party shall have the right to employ its own counsel in any such action and to
participate in the defense thereof, but the fees and expenses of such counsel shall be at the expense of such indemnified party, unless: (i) the employment of such counsel has been




  
 16 









	 	
specifically authorized in writing by the indemnifying party; (ii) the indemnifying party has failed promptly to assume the defense and employ counsel reasonably satisfactory to the
indemnified party; or (iii) the named parties to any such action (including any impleaded parties) include both such indemnified party and the indemnifying party or any affiliate of the indemnifying party, and such indemnified party shall have
concluded on the advice of counsel that either (x) there may be one or more legal defenses available to it which are different from or additional to those available to the indemnifying party or such affiliate of the indemnifying party or
(y) a conflict may exist between such indemnified party and the indemnifying party or such affiliate of the indemnifying party (it being understood, however, that the indemnifying party shall not, in connection with any one such action or
separate but substantially similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances, be liable for the fees and expenses of more than one separate firm of attorneys (in addition to a single
firm of local counsel) for all such indemnified parties, which firm shall be designated in writing by the Representatives and that all such reasonable fees and expenses shall be reimbursed as they are incurred). No indemnifying party shall, without
the written consent of the indemnified party, effect the settlement or compromise of, or consent to the entry of any judgment with respect to, any pending or threatened action or claim in respect of which indemnification or contribution may be
sought hereunder (whether or not the indemnified party is an actual or potential party to such action or claim) unless such settlement, compromise or judgment (i) includes an unconditional release of the indemnified party from all liability
arising out of such action or claim and (ii) does not include a statement as to, or an admission of, fault, culpability or a failure to act, by or on behalf of any indemnified party. 


 

	 	(d)	 If the indemnification provided for in this Section 9 is unavailable to or insufficient to hold harmless an
indemnified party under subsection (a) or (b) above in respect of any losses, claims, damages or liabilities (or actions in respect thereof) referred to therein, then each indemnifying party shall contribute to the amount paid or payable by
such indemnified party as a result of such losses, claims, damages or liabilities (or actions in respect thereof) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Guarantors on the one hand and
the Purchasers on the other from the offering of the Securities. If, however, the allocation provided by the immediately preceding sentence is not permitted by applicable law or if the indemnified party failed to give the notice required under
subsection (c) above, then each indemnifying party shall contribute to such amount paid or payable by such indemnified party in such proportion as is appropriate to reflect not only such relative benefits but also the relative fault of the
Company and the Guarantors on the one hand and the Purchasers on the other in connection with the statements or omissions which resulted in such losses, claims, damages or liabilities (or actions in respect thereof), as well as any other relevant
equitable considerations. The relative benefits received by the Company and the Guarantors on the one hand and the Purchasers on the other shall be deemed to be in the same proportion as the total net proceeds from the offering (before deducting
expenses) received by the Company bear to the total underwriting discounts and commissions received by the Purchasers, in each case as set forth in the Offering Circular. The relative fault shall be determined by reference to, among other things,
whether the untrue 



  
 17 









	 	
or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company and the Guarantors on the one hand or
the Purchasers on the other and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Company, the Guarantors and the Purchasers agree that it would not be just and
equitable if contribution pursuant to this subsection (d) were determined by pro rata allocation (even if the Purchasers were treated as one entity for such purpose) or by any other method of allocation which does not take account of the
equitable considerations referred to above in this subsection (d). The amount paid or payable by an indemnified party as a result of the losses, claims, damages or liabilities (or actions in respect thereof) referred to above in this subsection
(d) shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this subsection (d), no Purchaser
shall be required to contribute any amount in excess of the amount by which the total price at which the Securities underwritten by it and distributed to investors were offered to investors exceeds the amount of any damages which such Purchaser has
otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. The Purchasers’ obligations in this subsection (d) to contribute are several in proportion to their respective purchase
obligations and not joint. 

  

	 	(e)	The obligations of the Company and the Guarantors under this Section 9 shall be in addition to any liability which the Company and the Guarantors may otherwise have and shall extend, upon the same terms and
conditions, to any affiliate of each Purchaser and each person, if any, who controls any Purchaser within the meaning of the Act; and the obligations of the Purchasers under this Section 9 shall be in addition to any liability which the
respective Purchasers may otherwise have and shall extend, upon the same terms and conditions, to each officer and director of the Company and each of the Guarantors and to each person, if any, who controls the Company within the meaning of the Act.


  

	10.    (a)	If any Purchaser shall default in its obligation to purchase the Securities which it has agreed to purchase hereunder, you may in your discretion arrange for you or another party or other parties, which party or parties
is or are acceptable to the Company in its reasonable discretion, to purchase such Securities on the terms contained herein. If within thirty-six hours after such default by any Purchaser you do not arrange
for the purchase of such Securities, then the Company shall be entitled to a further period of thirty-six hours within which to procure another party or other parties reasonably satisfactory to you to purchase
such Securities on such terms. In the event that, within the respective prescribed periods, you notify the Company that you have so arranged for the purchase of such Securities, or the Company notifies you that it has so arranged for the purchase of
such Securities, you or the Company shall have the right to postpone the Time of Delivery for a period of not more than seven days, in order to effect whatever changes may thereby be made necessary in the Offering Circular, or in any other documents
or arrangements, and the Company agrees to prepare promptly any amendments or supplements to the Offering Circular which in your reasonable opinion may thereby be made necessary. The term “Purchaser” as used in this Agreement shall include
any person substituted under this Section with like effect as if such person had originally been a party to this Agreement with respect to such Securities. 


  
 18 









	 	(b)	If, after giving effect to any arrangements for the purchase of the Securities of a defaulting Purchaser or Purchasers by you and the Company as provided in subsection (a) above, the aggregate principal amount of
such Securities which remains unpurchased does not exceed one-eleventh of the aggregate principal amount of all the Securities, then the Company shall have the right to require each non-defaulting Purchaser to purchase the principal amount of Securities which such Purchaser agreed to purchase hereunder and, in addition, to require each non-defaulting
Purchaser to purchase its pro rata share (based on the principal amount of Securities which such Purchaser agreed to purchase hereunder) of the Securities of such defaulting Purchaser or Purchasers for which such arrangements have not been made; but
nothing herein shall relieve a defaulting Purchaser from liability for its default. 

 If, after giving effect to any
arrangements for the purchase of the Securities of a defaulting Purchaser or Purchasers by you and the Company as provided in subsection (a) above, the aggregate principal amount of Securities which remains unpurchased exceeds one-eleventh of the aggregate principal amount of all the Securities, or if the Company shall not exercise the right described in subsection (b) above to require
non-defaulting Purchasers to purchase Securities of a defaulting Purchaser or Purchasers, then this Agreement shall thereupon terminate, without liability on the part of any
non-defaulting Purchaser or the Company, except for the expenses to be borne by the Company and the Purchasers as provided in Section 7 hereof and the indemnity and contribution agreements in
Section 9 hereof; but nothing herein shall relieve a defaulting Purchaser from liability for its default. 
  

	11.	The respective indemnities, agreements, representations, warranties and other statements of the Company, the Guarantors and the several Purchasers, as set forth in this Agreement or made by or on behalf of them,
respectively, pursuant to this Agreement, shall remain in full force and effect, regardless of any investigation (or any statement as to the results thereof) made by or on behalf of any Purchaser or any controlling person of any Purchaser, or the
Company, any Guarantor, or any officer or director or controlling person of the Company or a Guarantor, and shall survive delivery of and payment for the Securities. 


 

	12.	If this Agreement shall be terminated pursuant to Section 10 hereof, the Company and the Guarantors shall not then be under any liability to any Purchaser except as provided in Sections 7 and 9 hereof; but, if for
any other reason, the Securities are not delivered by or on behalf of the Company as provided herein, the Company and the Guarantors will reimburse the Purchasers through you for all
out-of-pocket expenses approved in writing by you, including fees and disbursements of counsel, reasonably incurred by the Purchasers in making preparations for the
purchase, sale and delivery of the Securities, but the Company and the Guarantors shall then be under no further liability to any Purchaser except as provided in Sections 7 and 9 hereof. 


 

	13.	In all dealings hereunder, you shall act on behalf of each of the Purchasers, and the parties hereto shall be entitled to act and rely upon any statement, request, notice or agreement on behalf of any Purchaser made or
given by you. 

 All statements, requests, notices and agreements hereunder shall be in writing, and if to the Purchasers shall be delivered
or sent by mail or facsimile transmission to you as the representatives at Goldman Sachs & Co. LLC, 200 West Street, New York, New York 10282-2198, Attention: Registration Department, Merrill Lynch, Pierce Fenner & Smith
Incorporated, 50 Rockefeller Plaza, NY1-050-12-01, 

  
 19 








 
New York, New York 10020, Attention: High Grade Transaction Management/Legal or Wells Fargo Securities, LLC, 550 South Tryon Street, 5th
Floor, Charlotte, North Carolina 28202, Attention: Transaction Management; and if to the Company shall be delivered or sent by mail or facsimile transmission to the address of the Company set forth in the Offering Circular, Attention: Secretary;
provided, however, that any notice to a Purchaser pursuant to Section 9 hereof shall be delivered or sent by mail or facsimile transmission to such Purchaser at its address set forth in its Purchasers’ Questionnaire, which
address will be supplied to the Company by you upon request. Any such statements, requests, notices or agreements shall take effect upon receipt thereof. 

In accordance with the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law
October 26, 2001)), the Purchasers are required to obtain, verify and record information that identifies their respective clients, including the Company and the Guarantors, which information may include the name and address of their respective
clients, as well as other information that will allow the Purchasers to properly identify their respective clients. 
  

	14.	This Agreement shall be binding upon, and inure solely to the benefit of, the Purchasers, the Company, the Guarantors and, to the extent provided in Sections 9 and 11 hereof, the officers and directors of the Company,
the Guarantors, and each person who controls the Company or any Purchaser, and their respective heirs, executors, administrators, successors and assigns, and no other person shall acquire or have any right under or by virtue of this Agreement. No
purchaser of any of the Securities from any Purchaser shall be deemed a successor or assign by reason merely of such purchase. 

  

	15.	Time shall be of the essence of this Agreement. 

  

	16.	The Company and each of the Guarantors acknowledges and agrees that (i) the purchase and sale of the Securities pursuant to this Agreement is an arm’s-length commercial
transaction between the Company and the Guarantors, on the one hand, and the several Purchasers, on the other, (ii) in connection therewith and with the process leading to such transaction each Purchaser is acting solely as a principal and not
the agent or fiduciary of the Company or any Guarantor, (iii) no Purchaser has assumed an advisory or fiduciary responsibility in favor of the Company or any Guarantor with respect to the offering contemplated hereby or the process leading
thereto (irrespective of whether such Purchaser has advised or is currently advising the Company or any Guarantor on other matters) or any other obligation to the Company or any Guarantor except the obligations expressly set forth in this Agreement
and (iv) the Company and each of the Guarantors has consulted its own legal and financial advisors to the extent it deemed appropriate. The Company and each of the Guarantors agrees that it will not claim that the Purchaser, or any of them, has
rendered advisory services of any nature or respect, or owes a fiduciary or similar duty to the Company or any Guarantor, in connection with such transaction or the process leading thereto. 


 

	17.	This Agreement supersedes all prior agreements and understandings (whether written or oral) between or among the Company, the Guarantors and the Purchasers, or any of them, with respect to the subject matter hereof.


  

	18.	 THIS AGREEMENT AND ANY MATTERS RELATED TO THIS TRANSACTION SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH
THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO PRINCIPLES OF CONFLICT OF LAWS THAT 



  
 20 








 
WOULD RESULT IN THE APPLICATION OF ANY LAW OTHER THAN THE LAWS OF THE STATE OF NEW YORK. The Company and each of the Guarantors agrees that any suit or proceeding arising in respect of this
agreement or our engagement will be tried exclusively in the U.S. District Court for the Southern District of New York or, if that court does not have subject matter jurisdiction, in any state court located in The City and County of New York
and the Company agrees to submit to the jurisdiction of, and to venue in, such courts. 
  

	19.	The Company, each Guarantor and each of the Purchasers hereby irrevocably waives, to the fullest extent permitted by applicable law, any and all right to trial by jury in any legal proceeding arising out of or relating
to this Agreement or the transactions contemplated hereby. 

  

	20.	This Agreement may be executed by any one or more of the parties hereto in any number of counterparts, each of which shall be deemed to be an original, but all such respective counterparts shall together constitute one
and the same instrument. 

  

	21.	Notwithstanding anything herein to the contrary, the Company and the Guarantors and the Company’s and each Guarantor’s employees, representatives, and other agents are authorized to disclose to any and all
persons, the tax treatment and tax structure of the potential transaction and all materials of any kind (including tax opinions and other tax analyses) provided to the Company or any Guarantor relating to that treatment and structure, without the
Purchasers’ imposing any limitation of any kind. However, any information relating to the tax treatment and tax structure shall remain confidential (and the foregoing sentence shall not apply) to the extent necessary to enable any person to
comply with securities laws. For this purpose, “tax treatment” means U.S. federal and state income tax treatment, and “tax structure” is limited to any facts that may be relevant to that treatment. 


[Signature pages follow] 

  
 21 








 If the foregoing is in accordance with your understanding, please sign and return to us
counterparts hereof, and upon the acceptance hereof by you, on behalf of each of the Purchasers, this letter and such acceptance hereof shall constitute a binding agreement among each of the Purchasers, the Company and the Guarantors. It is
understood that your acceptance of this letter on behalf of each of the Purchasers is pursuant to the authority set forth in a form of Agreement among Purchasers, the form of which shall be submitted to the Company for examination upon request, but
without warranty on your part as to the authority of the signers thereof. 
  

			
	Very truly yours,
	
	Patterson-UTI Energy, Inc.
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Patterson Petroleum LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Patterson-UTI Drilling Company LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Patterson-UTI Management Services, LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer









 
			
	Universal Pressure Pumping, Inc.
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Drilling Technologies 1 LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Drilling Technologies 2 LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Warrior Rig Technologies US LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Seventy Seven Energy LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer









 
			
	Seventy Seven Operating LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Great Plains Oilfield Rental, L.L.C.
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	PTL Prop Solutions, L.L.C.
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	Seventy Seven Land Company LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer
	
	MS Directional, LLC
		
	By:	 	 /s/ C. Andrew Smith

	Name:	 	C. Andrew Smith
	Title:	 	Executive Vice President and Chief
		 	Financial Officer










			
	Accepted as of the date hereof:
	
	Goldman Sachs & Co. LLC
		
	By:	 	 /s/ Ryan Gilliam

		 	(Goldman Sachs & Co. LLC)
	Name:	 	Ryan Gilliam
	Title:	 	Vice President
	
	Merrill Lynch, Pierce, Fenner & Smith
	                      Incorporated
		
	By:	 	 /s/ Jackie Cleary

		 	 (Merrill Lynch, Pierce, Fenner & Smith

                      Incorporated)

	Name:	 	Jackie Cleary
	Title:	 	Managing Director
	
	Wells Fargo Securities, LLC
		
	By:	 	 /s/ Carolyn Hurley

		 	(Wells Fargo Securities, LLC)
	Name:	 	Carolyn Hurley
	Title:	 	Director

 On behalf of each of the Purchasers 







 SCHEDULE I 
  

					
	 Purchaser
	  	Principal
Amount of
Securities
to be
Purchased	 
	 Goldman Sachs & Co. LLC
	  	$	236,250,000	 
	 Wells Fargo Securities, LLC
	  	 	105,000,000	 
	 Merrill Lynch, Pierce, Fenner & Smith

                   
  Incorporated
	  	 	91,875,000	 
	 Scotia Capital (USA) Inc.
	  	 	91,875,000	 
		  	  
	  
	 
	 Total
	  	$	525,000,000	 
		  	  
	  
	 








 SCHEDULE II 
  

	(a)	Additional Documents Incorporated by Reference: None 

  

	(b)	Company Supplemental Disclosure Documents: 

 Electronic Roadshow Presentation, dated
January 5, 2018 
  

	(c)	Purchaser Supplemental Disclosure Documents: None 

  

	(d)	Permitted General Solicitation Materials: None 








 SCHEDULE III 

Pricing Term Sheet 

January 10, 2018 

The information in this pricing term sheet supplements Patterson-UTI Energy, Inc.’s
preliminary offering circular dated January 5, 2018 (the “Preliminary Offering Circular”) and supersedes the information in the Preliminary Offering Circular to the extent inconsistent with the information in the Preliminary Offering
Circular. This pricing term sheet is qualified in its entirety by reference to the Preliminary Offering Circular 
  

			
	Issuer:	  	Patterson-UTI Energy, Inc.
		
	Title of Securities:	  	3.95% Senior Notes due 2028
		
	Distribution:	  	Rule 144A/Regulation S with Registration Rights as set forth in the Preliminary Offering Circular
		
	Pricing Date:	  	January 10, 2018
		
	Settlement Date:	  	January 19, 2018 (T+6)
		
	Maturity Date:	  	February 1, 2028
		
	Aggregate Principal Amount:	  	$525,000,000 (upsized from an initial offering amount of $500,000,000)
		
	Benchmark Treasury:	  	2.250% due November 15, 2027
		
	Benchmark Treasury Price / Yield:	  	97-10+ / 2.559%
		
	Spread to Benchmark Treasury:	  	T + 140 bps
		
	Yield to Maturity:	  	3.959%
		
	Coupon:	  	3.950%
		
	Public Offering Price:	  	99.925%
		
	Net Proceeds:	  	$521,193,750 (after deducting initial purchasers’ discount and before estimated offering expenses)
		
	Optional Redemption:	  	Redeemable at any time before November 1, 2027 at a price equal to the greater of (i) 100% of the principal amount of the Notes to be redeemed and (ii) the principal amount plus a make-whole premium, using a discount
rate of T + 25 bps, plus accrued and unpaid interest, if any, to the redemption date. Redeemable at any time on or after November 1, 2027 at a price equal to the principal amount plus accrued and unpaid interest, if any, to the redemption
date.
		
	Interest Payment Dates:	  	February 1 and August 1, commencing August 1, 2018









			
	Rule 144A CUSIP / ISIN:	  	703481 AA9 / US703481AA96
		
	Regulation S CUSIP / ISIN:	  	U70446 AA4 / USU70446AA48
		
	Ratings*:	  	 Baa2 (Stable) (Moody’s)
 BBB (Stable)
(S&P)

		
	Joint Book-Running Managers:	  	 Goldman Sachs & Co. LLC
 Merrill
Lynch, Pierce, Fenner & Smith

                     Incorporated

Wells Fargo Securities, LLC
 Scotia Capital (USA)
Inc.


 *Note: A securities rating is not a recommendation to buy, sell or hold securities and may be revised or withdrawn at any
time. 
 Plan of Distribution 
 The following
paragraph supersedes and replaces in its entirety the seventh paragraph under the heading “Plan of Distribution” on page 43 of the Preliminary Offering Circular. 

“We expect to deliver the Notes against payment for the Notes on the sixth business day following the pricing of the Notes (“T+6”). Under Rule 15c6-1 of the Exchange Act, trades in the secondary market generally are required to settle in two business days, unless the parties to a trade expressly agree otherwise. Accordingly, purchasers who wish to trade
Notes on the date of pricing or the next three succeeding business days will be required, by virtue of the fact that the Notes initially will settle in T+6, to specify alternative settlement arrangements to prevent a failed settlement.” 

This material is strictly confidential and has been prepared by the Company solely for use in connection with the proposed offering of the notes described
in the Preliminary Offering Circular. This material is personal to each offeree and does not constitute an offer to any other person or the public generally to subscribe for or otherwise acquire the notes. Please refer to the Preliminary Offering
Circular for a complete description. 
 The notes have not been registered under the Securities Act of 1933, as amended (the “Securities
Act”), and are being offered only to (1) “qualified institutional buyers” as defined in Rule 144A under the Securities Act and (2) outside the United States to non-U.S. persons in
compliance with Regulation S under the Securities Act, and this communication is only being distributed to such persons. 
 This communication is not
an offer to sell the notes described in the Preliminary Offering Circular and herein, and it is not a solicitation of an offer to buy such notes, in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation in such
jurisdiction. 







 ANNEX I 
  

	(1)	The Securities have not been and will not be registered under the Act and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons except in accordance with Regulation
S under the Act or pursuant to an exemption from the registration requirements of the Act. Each Purchaser represents that it has offered and sold the Securities, and will offer and sell the Securities (i) as part of their distribution at any
time and (ii) otherwise until 40 days after the later of the commencement of the offering and the Time of Delivery, only in accordance with Rule 903 of Regulation S, Rule 144A or pursuant to Paragraph 2 of this Annex I under the Act.
Accordingly, each Purchaser agrees that neither it, its affiliates nor any persons acting on its or their behalf has engaged or will engage in any directed selling efforts with respect to the Securities, and it and they have complied and will comply
with the offering restrictions requirement of Regulation S. Each Purchaser agrees that, at or prior to confirmation of sale of Securities (other than a sale pursuant to Rule 144A) or pursuant to Paragraph 2 of this Annex I, it will have sent to each
distributor, dealer or person receiving a selling concession, fee or other remuneration that purchases Securities from it during the restricted period a confirmation or notice to substantially the following effect: 


“The Securities covered hereby have not been registered under the U.S. Securities Act of 1933 (the “Securities Act”) and may
not be offered and sold within the United States or to, or for the account or benefit of, U.S. persons (i) as part of their distribution at any time or (ii) otherwise until 40 days after the later of the commencement of the offering and
the closing date, except in either case in accordance with Regulation S (or Rule 144A if available) under the Securities Act. Terms used above have the meaning given to them by Regulation S.” 

Terms used in this paragraph have the meanings given to them by Regulation S. 

Each Purchaser further agrees that it has not entered and will not enter into any contractual arrangement with respect to the distribution
or delivery of the Securities, except with its affiliates or with the prior written consent of the Company. 
  

	(2)	Notwithstanding the foregoing, Securities in registered form may be offered, sold and delivered by the Purchasers in the United States and to U.S. persons pursuant to Section 3 of this Agreement without delivery
of the written statement required by paragraph (1) above. 

  

	(3)	Each Purchaser agrees that it will not offer, sell or deliver any of the Securities in any jurisdiction outside the United States except under circumstances that will result in compliance with the applicable laws
thereof, and that it will take at its own expense whatever action is required to permit its purchase and resale of the Securities in such jurisdictions. Each Purchaser understands that no action has been taken to permit a public offering in any
jurisdiction outside the United States where action would be required for such purpose. Each Purchaser agrees not to cause any advertisement of the Securities to be published in any newspaper or periodical or posted in any public place and not to
issue any circular relating to the Securities, except in any such case with each of the Representatives’ express written consent and then only at its own risk and expense. 








 Exhibit A