Document:

EX-10.1

 Exhibit 10.1 

Execution Version 

PARENT GUARANTY 

Guaranty, dated as of July 20, 2014 (this “Guaranty”), by Compressco Partners, L.P., a Delaware limited partnership
(“Guarantor”), in favor of Warren Equipment Company, a Delaware corporation (“Shareholder”). 
 1.
GUARANTY. To induce Shareholder to enter into the Stock Purchase Agreement, dated as of the date hereof (as amended, amended and restated, supplemented or otherwise modified from time to time, the “Purchase Agreement”;
capitalized terms used herein but not defined shall have the meanings given thereto in the Purchase Agreement), by and among Shareholder and Compressco Partners Sub, Inc., a Delaware corporation (the “Purchaser”), pursuant to which,
subject to the terms and conditions set forth therein, Purchaser will acquire the Shares, Guarantor, the sole shareholder of Purchaser, hereby absolutely, unconditionally and irrevocably guarantees to Shareholder, the due and punctual payment,
observance, performance and discharge of the Purchaser’s obligations in accordance with the terms of the Purchase Agreement (the “Obligation”). All payments hereunder shall be made in lawful money of the United States, in
immediately available funds. Guarantor acknowledges that it will receive substantial direct and indirect benefits from the transaction contemplated by the Purchase Agreement and that the waivers set forth in this Guaranty are knowingly made in
contemplation of such benefits. 
 2. NATURE OF GUARANTY. Shareholder shall not be obligated to file any claim relating to the
Obligation if Purchaser becomes subject to a bankruptcy, reorganization or similar proceeding, and the failure of Shareholder to so file shall not affect Guarantor’s obligations hereunder. In the event that any payment to Shareholder in respect
of the Obligation is rescinded or is otherwise returned for any reason whatsoever, Guarantor shall remain liable hereunder with respect to the Obligation as if such payment had not been made. The Obligation shall conclusively be deemed to have been
created, contracted or incurred in reliance upon this Guaranty, and all dealings between Purchaser or Guarantor, on the one hand, and Shareholder, on the other hand, shall likewise be conclusively presumed to have been had or consummated in reliance
upon this Guaranty. This Guaranty is an unconditional guarantee of payment and not of collection. 
 3. CHANGES IN THE OBLIGATION,
CERTAIN WAIVERS. Guarantor agrees that Shareholder may at any time and from time to time, without notice to or further consent of Guarantor, make any agreement with Purchaser for the extension, renewal, payment, compromise, discharge or release
thereof, in whole or in part, or for any modification of the terms thereof or of any agreement between Shareholder and Purchaser without in any way impairing or affecting the Obligation under this Guaranty or affecting the validity or enforceability
of this Guaranty. Guarantor agrees that the Obligation shall not be released or discharged, in whole or in part, or otherwise impaired or affected by (a) the failure or delay of Shareholder to assert any claim or demand or to enforce any right
or remedy against Purchaser or any other Person interested in the 

 
transactions contemplated by the Purchase Agreement; (b) any change in the time, place or manner of payment of the Obligation, (c) the existence of any claim, setoff or other right,
which Guarantor may have at any time against Purchaser or Shareholder, whether in connection with the Obligation or otherwise, (d) any change in the applicable Law of any jurisdiction, (e) any insolvency, bankruptcy, reorganization,
dissolution, liquidation, sale or transfer of assets, merger, consolidation, changed form or structure or other similar proceeding affecting Purchaser or Guarantor; (f) any amendment or modification of the Purchase Agreement (other than a
termination of the Purchase Agreement under Section 9.1 of the Purchase Agreement); (g) any other act or omission that may or might in any manner or to any extent increase or otherwise vary the risk of Guarantor or otherwise operate as a
release or discharge of Guarantor as a matter of law or equity; or (h) any lack or limitation of status or of power of Guarantor or Shareholder in respect of all or any part of the Obligation. Guarantor hereby irrevocably and expressly waives
promptness, diligence, notice of the acceptance of this Guaranty and the Obligation and of presentment, demand for payment, notice of non-performance, default, dishonor and protest and all other notices of any kind, all defenses which may be
available by virtue of any valuation, stay, moratorium law or other similar law now or hereafter in effect, and all suretyship defenses generally (other than defenses to the payment of the Obligation that are available under the Purchase Agreement);
provided that Guarantor is not waiving any rights or defenses to the extent otherwise expressly provided herein. Shareholder agrees that any payment made by Purchaser to Shareholder in accordance with the Purchase Agreement shall reduce the amount
of the Obligation under this Guaranty accordingly, subject to the provisions of Section 2 hereof. 
 Guarantor hereby unconditionally and
irrevocably agrees not to exercise any rights that it may now have or hereafter acquire against the Purchaser or any other Person interested in the transactions contemplated by the Purchase Agreement that arise from the existence, payment,
performance, or enforcement of Guarantor’s obligation under or in respect of this Guaranty or any other agreement in connection therewith, including, without limitation, any right of subrogation, reimbursement, exoneration, contribution or
indemnification and any right to participate in any claim or remedy of Shareholder against Purchaser or such other Person, whether or not such claim, remedy or right arises in equity or under contract, statute or common law, including, without
limitation, the right to take or receive from Purchaser or such other Person, directly or indirectly, in cash or other property or by setoff or in any other manner, payment or security on account of such claim, remedy or right, unless and until the
Obligation and all other amounts payable under this Guaranty shall have been previously paid in full in cash. If any amount shall be paid to Guarantor in violation of the immediately preceding sentence at any time before the payment in full in cash
of the Obligation, such amount shall be received and held in trust for the benefit of Shareholder, shall be segregated from other property and funds of Guarantor and shall forthwith be paid or delivered to the Purchaser for payment to Shareholder in
accordance with Section 3.1, Section 3.3 and Section 3.4 of the Purchase Agreement. 

  
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 4. NO WAIVER; CUMULATIVE RIGHTS. No failure on the part of the Shareholder to exercise,
and no delay in exercising, any right, remedy or power hereunder shall operate as a waiver thereof, nor shall any single or partial exercise by Shareholder of any right, remedy or power hereunder or under the Purchase Agreement or otherwise preclude
any other or future exercise of any right, remedy or power hereunder. Each and every right, remedy and power hereby granted to Shareholder or allowed it by law or other agreement shall be cumulative and not exclusive of any other, and may be
exercised by Shareholder at any time or from time to time. Shareholder shall not have any obligation to proceed at any time or in any manner against, or exhaust any or all of Shareholder’s rights against Purchaser before proceeding against
Guarantor hereunder. The failure by Shareholder to pursue rights or remedies against Purchaser or any other Person shall not relieve Guarantor of any liability hereunder, and shall not impair or affect the rights and remedies, whether express,
implied or available as a matter of applicable Law, of Shareholder. 
 5. REPRESENTATIONS AND WARRANTIES. Guarantor hereby represents
and warrants that: 
 (a) Guarantor is a duly formed and validly existing limited partnership in good standing under the laws
of the State of Delaware; 
 (b) the execution, delivery and performance of this Guaranty have been duly authorized by all
necessary action and do not contravene any provision of Guarantor’s certificate of limited partnership, partnership agreement, operating agreement or similar organizational documents or any Law, regulation, rule, decree, order, judgment or
contractual restriction binding on Guarantor or its assets; 
 (c) all consents, approvals, authorizations, permits of,
filings with and notifications to, any Governmental Authority or other Person necessary for the due execution, delivery and performance of this Guaranty by Guarantor have been obtained or made and all conditions thereof have been duly complied with,
and no other action by, and no notice to or filing with, any Governmental Authority or regulatory body or other Person is required in connection with the execution, delivery or performance of this Guaranty; 

(d) this Guaranty constitutes a legal, valid and binding obligation of Guarantor enforceable against Guarantor in accordance
with its terms, subject to (i) the effects of bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium or other similar laws affecting creditors’ rights generally and (ii) general equitable principles (whether
considered in a proceeding in equity or at law); and 
 (e) Pursuant to the Debt Commitment Letter, Guarantor has access to,
and, when due under this Guaranty, will have, sufficient cash to pay the Purchase Price on the terms and conditions contemplated by the Purchase Agreement and the obligations under this Guaranty. 

  
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 6. NO ASSIGNMENT. Neither Guarantor nor Shareholder may assign its rights, interests or
obligations hereunder to any other Person (except by operation of law) without the prior written consent of Shareholder (in the case of an assignment by Guarantor) or Guarantor (in the case of an assignment by Shareholder). Any attempted assignment
in violation of this Section 6 shall be null and void. 
 7. NOTICES. All notices, requests, demands, waivers and other
communications required or permitted to be given under this Guaranty shall be in writing and shall be given (a) on the date of delivery if delivered personally, (b) on the first Business Day following the date of dispatch if delivered by a
nationally recognized next-day courier service, (c) on the fifth Business Day following the date of mailing if delivered by registered or certified mail (postage prepaid, return receipt requested) or (d) if sent by electronic transmission,
when transmitted and receipt is confirmed. All notices hereunder shall be delivered as set forth below: 
  

	 	(a)	if to Shareholder, to it at: 

 Warren Equipment Company 

10325 Younger Road 
 Midland, TX
79706 
 Attn: Steven C. Lindgren, Vice President and General Counsel 

Email: steve.lindgren@warren-equipment.com 

with copies (which shall not constitute notice) to: 

Strasburger & Price, LLP 

2 Houston Center 
 909 Fannin
Street, Suite 2300 
 Houston, TX 77010-1036 

Attn: W. Garney Griggs 
 Email:
Garney.Griggs@Strasburger.com 
  

	(b)	if to Guarantor, to it at: 

 Compressco Partners, L.P. 

101 Park Avenue, Suite 1200 

Oklahoma City, OK 73102 
 Attn:
Ronald J. Foster, President 
 Email: Ron@Compressco.com 

with copies (which shall not constitute notice) to: 

TETRA Technologies, Inc. 
 24955
Interstate 45 North 
 The Woodlands, TX 77380 

Attn: Bass C. Wallace, Senior Vice President and General Counsel 

Email: bwallace@tetratec.com 

  
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 Andrews Kurth LLP 

600 Travis, Suite 4200 
 Houston,
TX 77002 
 Attn: David C. Buck 

Email: davidbuck@andrewskurth.com 
 or to such
other Person or address as a party shall specify by notice in writing to the other party. All such notices, requests, demands, waivers and communications shall be deemed to have been given on the date of personal receipt or proven delivery. 

8. CONTINUING GUARANTY. Unless terminated pursuant to this Section 8, this Guaranty shall remain in full force and effect
and shall be binding on Guarantor, its successors and assigns until the Obligation is satisfied in full. This Guaranty shall terminate, other than Section 7 and Sections 9 through 16, all of which shall survive the
termination of this Guaranty, and Guarantor shall have no further obligations under this Guaranty, as of the earlier of (a) the satisfaction in full of the Obligation and (b) the termination of the Purchase Agreement in accordance with its
terms, provided that the Purchaser has no further Obligations to Shareholder under the Purchase Agreement. 
 9. NO RECOURSE.
Notwithstanding anything that may be expressed or implied in this Guaranty or any document or instrument delivered contemporaneously herewith, and notwithstanding the fact that Guarantor is a limited partnership, Shareholder, by its acceptance of
the benefits hereof covenants, agrees and acknowledges that no Person other than Guarantor shall have any obligation hereunder and that it has no rights of recovery under this Guaranty against, and no recourse hereunder shall be had against, and no
personal liability shall attach in connection with this Guaranty to, any former, current or future director, officer, agent, Affiliate (other than Guarantor or Purchaser), manager, assignee or employee of Guarantor or Purchaser (or of any of their
successors or permitted assignees) or any former, current or future director, officer, agent, employee, Affiliate, assignee, general or limited partner, stockholder, manager or member of any of the foregoing, but in each case not including Guarantor
or Purchaser (collectively, but excluding for the avoidance of doubt, Guarantor and Purchaser, the “Guarantor/Purchaser Affiliates”), whether by or through attempted piercing of the corporate veil, by or through a claim (whether in
tort, contract or otherwise) by or on behalf of Purchaser against Guarantor/Purchaser Affiliates, by the enforcement of any judgment or assessment or by any legal or equitable proceeding by virtue of any statute, regulation or other applicable law,
or otherwise. 
 Shareholder agrees that neither it nor any of its Affiliates have any right of recovery against Guarantor or its general partner or any of
its or their respective stockholders, partners, members, directors, officers or agents in respect of any claims arising from the Purchase Agreement and the transactions contemplated thereby, through Purchaser or otherwise, whether by piercing of the
corporate veil, by a claim on behalf of Purchaser against Guarantor or Purchaser’s stockholders or Affiliates, or otherwise, except for claims by Shareholder against Guarantor with respect to the Obligation under this Guaranty (“Retained
Guaranty Claims”). Recourse against Guarantor with respect to the 

  
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Retained Guaranty Claims shall be the sole and exclusive remedy of Shareholder and its respective Affiliates against Guarantor and any Guarantor/Purchaser Affiliates (other than Purchaser) in
respect of any liabilities or obligations arising under, or in connection with, the Purchase Agreement or the transactions contemplated thereby, it being expressly agreed and acknowledged that no personal liability whatsoever shall attach to, be
imposed on, or otherwise be incurred by any Guarantor/Purchaser Affiliate, as such, for any obligations of Guarantor under this Guaranty or the transactions contemplated hereby, under any documents or instruments delivered contemporaneously
herewith, in respect of any oral representations made or alleged to be made in connection herewith or therewith, or for any claim (whether in tort, contract or otherwise) based on, in respect of, or by reason of, such obligations or their creation.

 Notwithstanding anything else in this Section 9 to the contrary, in the event Guarantor (a) consolidates with or merges with any other
Person and is not the continuing or surviving entity of such consolidation or merger or (b) transfers or conveys all or a substantial portion of its properties and other assets to any Person, then, and in each such case, the Shareholder may
seek recourse, whether by the enforcement of any judgment or assessment or by any legal or equitable proceeding or by virtue of any applicable Law, against such continuing or surviving entity or such Person (in either case, a “Successor
Entity”), as the case may be. As used herein, unless otherwise specified, the term “Guarantor” includes the Guarantor’s Successor Entity. 

Shareholder hereby covenants and agrees that it shall not institute, and it shall cause its Affiliates not to institute, any proceeding or bring any other
claim arising under, or in connection with, the Purchase Agreement or the transactions contemplated thereby, or in respect of any oral representations made or alleged to be made in connection therewith, against Guarantor or any of
Guarantor/Purchaser Affiliates except for (i) the Retained Guaranty Claims brought by Shareholder against Guarantor under this Guaranty and (ii) the claims against the parties to the Confidentiality Agreement by Shareholder in respect of
the terms and conditions therein. Nothing set forth in this Guaranty shall affect or be construed to affect or be construed to confer or give any Person other than Shareholder (including any Person acting in a representative capacity) any rights or
remedies against any Person other than Guarantor as set forth herein. 
 Notwithstanding the provisions of this Section 9, Shareholder shall
have full recourse against any Guarantor/Purchaser Affiliate insofar as Shareholder has a claim against any Guarantor/Purchaser Affiliate arising as a result of any payment by Purchaser in respect of the Obligation being held to constitute a
fraudulent conveyance or fraudulent transfer (or similar principle), whether in law or in equity, or other fraudulent transaction. 
 Notwithstanding
anything else contained in this Guaranty, if any payment by Purchaser in respect of the Obligation is held to constitute a preference, fraudulent transfer or other voidable payment under any bankruptcy, insolvency or similar law, or if for any other
reason, Shareholder is required to refund such payment or pay the amount thereof to any other creditor of Purchaser or Guarantor, such payment by Purchaser to Shareholder shall not constitute a release of Guarantor from any liability hereunder, and
this Guaranty shall 

  
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continue to be effective or shall be reinstated (notwithstanding any prior release, surrender or discharge of this Guaranty), as the case may be, with respect to, and this Guaranty shall apply
to, any and all amounts so refunded by Shareholder or paid by Shareholder to another Person, which amounts shall constitute part of the Obligation). It is the intent of Guarantor and Shareholder that the obligations and liabilities of Guarantor
hereunder are absolute and unconditional under any and all circumstances and that, until the Obligation is paid in full or this Guaranty is otherwise terminated pursuant to Section 8, the obligations and liabilities of Guarantor
hereunder shall not be discharged or released, in whole or in part, by any act or occurrence that might, but for the provisions of this Guaranty, be deemed a legal or equitable discharge or release of Guarantor. 

10. ENTIRE AGREEMENT. This Guaranty constitutes the entire agreement with respect to the subject matter hereof and supersedes any and
all prior discussions, negotiations, proposals, undertakings and agreements, whether written or oral, among Purchaser and Guarantor or any of their Affiliates, on the one hand, and Shareholder and any of its Affiliates, on the other hand, except for
the Purchase Agreement and the other agreements related thereto and entered into on the date hereof. 
 11. GOVERNING LAW. 

(a) This Agreement shall be governed by and construed and enforced in accordance with the internal Laws of the State of Texas without reference
to its choice of law rules. 
 (b) All actions arising out of or relating to this Guaranty shall be heard and determined exclusively in the
state or federal courts located in the County of Midland, State of Texas. Each of the parties hereto (i) consents to the jurisdiction of such courts (and of the appropriate appellate courts therefrom) in any such suit, action or proceeding in
the event any dispute arises out of this Guaranty or any of the transactions contemplated by this Guaranty, (ii) waives, to the fullest extent permitted by law, any objection that it may now or hereafter have to the laying of the venue of any
such suit, action or proceeding in any such court or that any such suit, action or proceeding that is brought in any such court has been brought in an inconvenient forum and (iii) waives any objection to service of process effected in
accordance with Section 11.1 of the Purchase Agreement or any means allowable under Texas law or procedure. 
 (c) THE PARTIES
HEREBY WAIVE, TO THE FULLEST EXTENT PERMITTED BY LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY ACTION DIRECTLY OR INDIRECTLY ARISING OUT OF, UNDER OR IN CONNECTION WITH THIS GUARANTY. 

12. AMENDMENTS AND WAIVERS. No amendment or waiver of any provision of this Guaranty will be valid and binding unless it is in writing
and signed, in the case of an amendment, by Guarantor and Shareholder or, in the case of a waiver, by the party against whom the waiver is to be effective. No waiver by any party hereto shall operate or be construed as a waiver in respect of any
failure, breach or default not expressly identified by such written waiver, whether of a similar or different character, and whether occurring before or after that waiver. 

  
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 13. NO THIRD PARTY BENEFICIARIES. Except for the rights of Guarantor/Purchaser Affiliates
provided under Section 9 (which such Persons shall be express third party beneficiaries of), the parties hereby agree that their respective representations, warranties and covenants set forth herein are solely for the benefit of the
other party hereto, in accordance with and subject to the terms of this Guaranty, and this Guaranty is not intended to, and does not, confer upon any Person other than the parties hereto any rights or remedies hereunder, including the right to rely
upon the representations and warranties set forth herein. 
 14. SEVERABILITY. Any term or provision of this Guaranty found to be
invalid, illegal or unenforceable in any jurisdiction shall be, as to such jurisdiction, ineffective solely to the extent of such prohibition or unenforceability and shall not affect any other term or provision of this Guaranty or invalidate or
render unenforceable such term or provision in any other jurisdiction. 
 15. INTERPRETATION. All parties acknowledge that each party
and its counsel have reviewed this Guaranty and that any rule of construction to the effect that any ambiguities are to be resolved against the drafting party shall not be employed in the interpretation of this Guaranty. 

16. COUNTERPARTS. This Guaranty may be executed in any number of counterparts, each of which shall be deemed to be an original, and all
of which together shall be deemed to be one and the same instrument. 
 [Remainder of page intentionally left blank.] 

  
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 IN WITNESS WHEREOF, Guarantor has caused this Guaranty to be executed and delivered as of the
date first written above by its officer thereunto duly authorized. 
  

			
	COMPRESSCO PARTNERS, L.P.
		
	By:	 	Compressco Partners GP Inc.,
		 	      its general partner
		
	By:	 	 /s/ Ronald J. Foster

	Name:	 	Ronald J. Foster
	Title:	 	President

 [Signature Page to Guaranty] 

 Accepted and Agreed to: 
  

			
	WARREN EQUIPMENT COMPANY
		
	By:	 	 /s/ Richard D. Folger

	Name:	 	Richard D. Folger
	Title:	 	President

 [Signature Page to Guaranty]EX-10.2

 Exhibit 10.2 

EXECUTION VERSION 

CONTRIBUTION AND UNIT PURCHASE AGREEMENT 

This Contribution and Unit Purchase Agreement (this “Agreement”), dated as of July 20, 2014 (the “Execution
Date”), is by and among Compressco Partners L.P., a Delaware limited partnership (the “Partnership”), Compressco Partners GP, Inc., a Delaware corporation and the general partner of the Partnership (the “General
Partner”), and TETRA Technologies, Inc., a Delaware corporation and owner of all of the outstanding equity of the General Partner (“Parent”). The above-named entities are sometimes referred to in this Agreement individually
as a “Party” and collectively as the “Parties.” 
 RECITALS 

WHEREAS, the Partnership and the General Partner have entered into that certain Commitment Letter, dated as of July 10, 2014 (the
“Commitment Letter”), which, among other things, contemplates (a) the potential borrowing of up to $175 million (and not less than $75 million) of senior secured loans under a term loan facility to the General Partner (the
“GP Term Loan Facility” and such senior secured loans being the “GP Term Loans”), (b) the potential contribution by Parent directly or indirectly to the General Partner of up to $75 million in cash (the
“Parent GP Contribution”), (c) in the event of receipt by the General Partner of cash proceeds from one or both of the GP Term Loans or the Parent GP Contribution, the contribution of such cash proceeds by the General Partner
to the Partnership in exchange for Common Units (the “GP Equity Investment”) and (d) the potential borrowing of up to $450 million under a bridge facility (the “LP Bridge Facility” and such senior loans being
the “LP Bridge Loans”)); 
 WHEREAS, the proceeds of such purchase of the GP Equity Investment would be used by the
Partnership to fund, among other things, a portion of the purchase price for the acquisition of all of the outstanding capital stock of Compressor Systems, Inc., a Delaware corporation (“CSI,” and the acquisition thereof, the
“Acquisition”), from Warren Equipment Company, a Delaware corporation (the “Seller”), pursuant to a Stock Purchase Agreement (the “Purchase Agreement”); 

WHEREAS, under certain circumstances set forth in the Commitment Letter, the consummation of one or both of the Parent GP Contribution
and the GP Equity Investment may be required as a condition to the closing and the extension of the GP Term Loans under the GP Term Loan Facility and/or the LP Bridge Loans under the LP Bridge Facility (collectively, the “Financing
Transactions”); 
 WHEREAS, in connection the Purchase Agreement and the Acquisition, the Partnership deems it in the best
interest of the Partnership and its limited partners to ensure the equity contribution conditions to the Financing Transactions may be satisfied by the General Partner and the Partnership; and 

WHEREAS, subject to the terms and conditions set forth herein, the Parties desire to give effect to the transactions contemplated by
the Commitment Letter. 

 NOW, THEREFORE, in consideration of the mutual covenants, representations, warranties and
agreements herein contained, the Parties hereto agree as follows: 
 1. Representations and Warranties. The Partnership represents
and warrants to the General Partner as set forth below in this Section 1: 
 (a) Formation and Qualification of the
Partnership. The Partnership has been duly formed and is validly existing in good standing under the laws of the State of Delaware with all limited partnership power and authority necessary to own or hold its properties, conduct the businesses
in which it is engaged, execute and deliver this Agreement and consummate the transactions contemplated hereby. The Partnership is duly registered or qualified to do business and is in good standing as a foreign limited partnership in each
jurisdiction in which its ownership or lease of property or the conduct of its businesses requires such qualification or registration, except where the failure to so qualify or register would not, (i) individually or in the aggregate, have a
material adverse effect on the condition (financial or otherwise), results of operations, business or prospects of the Partnership and its subsidiaries, taken as a whole (an “Material Adverse Effect”) or (ii) subject the
limited partners of the Partnership to any material liability or disability. 
 (b) Valid Issuance of the Purchased Units. The
Purchased Units (defined below), and the limited partner interests represented thereby, will be duly authorized in accordance with the Partnership Agreement and, when issued and delivered to the General Partner against payment therefor in accordance
with the terms hereof, will be validly issued, fully paid (to the extent required under the Partnership Agreement) and nonassessable (except as such nonassessability may be affected by (i) matters described in the Partnership’s Form 10-K
for the year ended December 31, 2013 under the caption “Risk Factors—Risks Inherent in an Investment in Us—Our unitholders’ liability may not be limited if a court finds that unitholder action constitutes control of our
business” and (ii) Sections 17-303, 17-607 and 17-804 of the Delaware Revised Uniform Limited Partnership Act). 
 (c)
Authority. The Partnership has all requisite limited partnership power and authority to execute and deliver this Agreement and to perform its obligations hereunder. The Partnership has all requisite power and authority to issue, sell and deliver
the Units, in accordance with and upon the terms and conditions set forth in this Agreement and the Partnership Agreement. 
 (d)
Authorization, Execution and Delivery of Agreements. (i) This Agreement has been duly authorized, validly executed and delivered by the Partnership and (ii) the Partnership Agreement is a valid and legally binding agreement of the
Partnership, enforceable against the Partnership in accordance with its terms, except, with respect to each agreement described in this clause (d), as the enforceability thereof may be limited by bankruptcy, insolvency, fraudulent transfer,
reorganization, moratorium and other similar laws relating to or affecting creditors’ rights generally and by general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 

  
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 (e) No Conflicts. None of the (i) offering, issuance and sale by the Partnership of
the Purchased Units, (ii) the execution, delivery and performance of this Agreement by the Partnership or (iii) consummation of the transactions contemplated hereby (A) conflicts or will conflict with or constitutes or will constitute
a violation of any organizational documents of the Partnership, (B) conflicts or will conflict with or constitutes or will constitute a breach or violation of, or a default (or an event that, with notice or lapse of time or both, would
constitute such a default) under, any indenture, mortgage, deed of trust, loan agreement, lease or other agreement or instrument to which the Partnership is a party or by which it or any of its respective properties may be bound, (C) violates
or will violate any statute, law or regulation or any order, judgment, decree or injunction of any court, arbitrator or governmental agency or body having jurisdiction over the Partnership, or any of its properties or assets or (D) results or
will result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Partnership, which conflicts, breaches, violations, defaults or liens, in the case of clause (B) or (D), would,
individually or in the aggregate, have a Material Adverse Effect. 
 (f) Investment Company. The Partnership is not now, nor after
the sale of the Purchased Units and application of the net proceeds from such sale as approved by the board of directors of the General Partner will be, an “investment company” or a company “controlled by” an “investment
company” within the meaning of the Investment Company Act of 1940, as amended. 
 (g) Absence of Certain Actions. No action has
been taken and no statute, rule, regulation or order has been enacted, adopted or issued by any governmental agency or body which prevents the issuance or sale of the Purchased Units in any jurisdiction; no injunction, restraining order or order of
any nature by any federal or state court of competent jurisdiction has been issued with respect to the Partnership which would prevent or suspend the issuance or sale of the Purchased Units; no action, suit or proceeding is pending against or, to
the knowledge of the Partnership, threatened against or affecting the Partnership before any court or arbitrator or any governmental agency, body or official, domestic or foreign, which could reasonably be expected to interfere with or adversely
affect the issuance of the Purchased Units or in any manner draw into question the validity or enforceability of this Agreement or any action taken or to be taken pursuant hereto. 

2. Representations of the General Partner. The General Partner represents and warrants to the Partnership as set forth below in this
Section 2: 
 (a) Formation and Qualification of the General Partner. The General Partner has been duly incorporated and
is validly existing in good standing under the laws of the State of Delaware with all corporate power and authority necessary to own or hold its properties and conduct the businesses in which it is engaged and to execute and deliver this Agreement
and to consummate the transactions contemplated hereby. 
 (b) Authority. The General Partner has all requisite corporate power and
authority to execute and deliver this Agreement for itself or on behalf of the Partnership and to perform its obligations hereunder. 

(c) Authorization, Execution and Delivery of Agreements. This Agreement has been duly authorized, validly executed and delivered by the
General Partner, except as the enforceability thereof may be limited by bankruptcy, insolvency, fraudulent transfer, 

  
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reorganization, moratorium and other similar laws relating to or affecting creditors’ rights generally and by general principles of equity (regardless of whether such enforceability is
considered in a proceeding in equity or at law). 
 (d) No Conflicts. Neither the execution, delivery and performance of this
Agreement by the General Partner nor the consummation of the transactions contemplated hereby (i) conflicts or will conflict with or constitutes or will constitute a violation of the organizational documents of the General Partner,
(ii) conflicts or will conflict with or constitutes or will constitute a breach or violation of, or a default (or an event that, with notice or lapse of time or both, would constitute such a default) under, any indenture, mortgage, deed of
trust, loan agreement, lease or other agreement or instrument to which the General Partner is a party or by which it or any of its respective properties may be bound, (iii) violates or will violate any statute, law or regulation or any order,
judgment, decree or injunction of any court, arbitrator or governmental agency or body having jurisdiction over the General Partner, or any of its properties or assets or (iv) results or will result in the creation or imposition of any lien,
charge or encumbrance upon any property or assets of the General Partner, which conflicts, breaches, violations, defaults or liens, in the case of clauses (ii) or (iv), would, individually or in the aggregate, have a material
adverse effect on the condition (financial or otherwise), results of operations, business or prospects of the General Partner. 
 (e)
Accredited Investor, Etc. The General Partner is an accredited investor, as defined in Rule 501 under the Securities Act. The General Partner is making this investment for its own account and not for the account of others and is not buying the
Purchased Units with the present intention of reselling them. The General Partner has conducted its own diligence regarding its investment in the Purchased Units and has sought such accounting, legal and tax advice as the General Partner considers
necessary to make an informed investment decision with respect to the Purchased Units. The General Partner is experienced in investment and business matters (or has been advised by an investment adviser who is so experienced), understands fully the
nature of the risk involved in its investment in the Purchased Units acquired hereunder and is financially able to assume such risks. 
 3.
Representations of Parent. Parent represents and warrants to the General Partner as set forth below in this Section 3: 

(a) Formation and Qualification of Parent. Parent has been duly incorporated and is validly existing in good standing under the laws of
the State of Delaware with all corporate power and authority necessary to own or hold its properties and conduct the businesses in which it is engaged and to execute and deliver this Agreement and to consummate the transactions contemplated hereby.

 (b) Authority. Parent has all requisite corporate power and authority to execute and deliver this Agreement and to perform its
obligations hereunder. 
 (c) Authorization, Execution and Delivery of Agreements. This Agreement has been duly authorized, validly
executed and delivered by Partner, except as the enforceability thereof may be limited by bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and other similar laws relating to or affecting creditors’ rights generally and by
general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 

  
 4 

 (d) No Conflicts. Neither the execution, delivery and performance of this Agreement by
Parent nor the consummation of the transactions contemplated hereby (i) conflicts or will conflict with or constitutes or will constitute a violation of the organizational documents of Parent, (ii) conflicts or will conflict with or
constitutes or will constitute a breach or violation of, or a default (or an event that, with notice or lapse of time or both, would constitute such a default) under, any indenture, mortgage, deed of trust, loan agreement, lease or other agreement
or instrument to which Parent is a party or by which it or any of its respective properties may be bound, (iii) violates or will violate any statute, law or regulation or any order, judgment, decree or injunction of any court, arbitrator or
governmental agency or body having jurisdiction over Parent, or any of its properties or assets or (iv) results or will result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of Parent, which
conflicts, breaches, violations, defaults or liens, in the case of clauses (ii) or (iv), would, individually or in the aggregate, have a material adverse effect on the condition (financial or otherwise), results of operations,
business or prospects of Parent. 
 4. Parent GP Contribution. Subject to the terms and conditions, and in reliance upon the
representations and warranties, herein set forth, on the Closing Date, simultaneously with or immediately following the consummation of the Financing Transaction, Parent agrees to effect, directly or indirectly through one of its wholly owned
subsidiaries, as contemplated under the GP Term Loans, the Parent GP Contribution; provided that the amount of the Parent GP Contribution shall be otherwise in accordance with the terms and conditions of the Commitment Letter and the
definitive documents contemplated thereby. 
 5. Unit Purchase. 

(a) Subject to the terms and conditions, and in reliance upon the representations and warranties, herein set forth, on the Closing Date,
simultaneously with or immediately following the consummation of the Parent GP Contribution, the Partnership agrees to sell to the General Partner, and the General Partner agrees to purchase from the Partnership, a number of Common Units (the
“Purchased Units”) equal to (i) the cash proceeds from the Parent GP Contribution and the GP Term Loans (i.e., up to $250 million), divided by (ii) an amount equal to the average closing price of a Common Unit (as
reported by the NASDAQ Stock Market) for the five (5) business days ending at the close of business on the third business day prior to the Closing Date (the “Purchase Price”) (rounding down such number of Units to the nearest
whole unit to avoid fractional units); provided that, if any Common Units are purchased in connection with a Public Equity Offering (as defined in the Commitment Letter) of Common Units as contemplated by the Commitment Letter but result in
less than $350 million of gross proceeds contemplated under the Commitment Letter, the Purchase Price shall be equal to the price at which the Common Units are sold to the public (less discounts and commissions to be paid to any underwriter);
provided, further, that the aggregate Purchase Price for all Purchased Units (x) shall not exceed $250 million and (y) shall be otherwise in accordance with the terms and conditions of the Commitment Letter and the definitive
documents contemplated thereby. The General Partner shall, prior to the Closing Date, notify the other Parties in writing of (A) the Purchase Price and (B) the number of Purchased Units to be purchased. 

  
 5 

 (b) Delivery of and payment for the Purchased Units shall be made at the time the Financing
Transactions are consummated on the Closing Date. Delivery of the Purchased Units shall be made to the General Partner against payment by the General Partner of the Purchase Price to or upon the order of the Partnership by wire transfer payable in
same-day funds to an account specified by the Partnership. The Partnership shall deliver original unit certificates representing the Purchased Units, duly executed by the Partnership, or units in book entry form. unless the General Partner shall
otherwise instruct. 
 6. Conditions to the Obligations of the Parties. The Parties are only obligated to consummate the transactions
contemplated herein to the extent required as a condition to the consummation of a Financing Transaction. In addition, the obligation of the General Partner to purchase the Purchased Units shall be subject to the accuracy of the representations and
warranties on the part of the Partnership contained herein as of the Execution Date and the Closing Date and the performance by each of Parent and the Partnership of its obligations hereunder. 

7. Termination. This Agreement shall terminate on the earliest of (a) October 10, 2014 or such earlier termination date of
the Commitment Letter, unless the Closing Date occurs on or prior thereto, (b) the closing of the Acquisition and (c) the acceptance by the Seller or CSI or any of their affiliates of an offer for all or any substantial part of the capital
stock or property and assets of CSI other than as part of the Transaction (as defined in the Commitment Letter). In the event of termination of this Agreement pursuant to this Section 7, this Agreement shall forthwith become void. 

8. Notices. All communications hereunder will be in writing and effective only upon receipt. Communications will be emailed, mailed or
delivered to each of the Parties at the following addresses: if sent to the Partnership, Compressco Partners GP, Inc., 24955 Interstate 45 North, Houston, Texas, Attention: General Counsel, Email: bwallace@tetratec.com; if sent to the Partnership,
Compressco Partners L.P., 24955 Interstate 45 North, Houston, Texas, Attention: General Counsel and Assistant Secretary, Email: bwallace@tetratec.com; and if sent to Parent, TETRA Technologies, Inc., 24955 Interstate 45 North, The Woodlands, Texas,
Attention: Senior Vice President and General Counsel, Email: bwallace@tetratec.com. 
 9. Successors. This Agreement will inure to
the benefit of and be binding upon the parties hereto and their respective successors and the officers, directors, employees and agents, and no other person will have any right or obligation hereunder. 

10. Applicable Law. THIS AGREEMENT WILL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE. 

11. Counterparts. This Agreement may be signed in one or more counterparts, each of which shall constitute an original and all of which
together shall constitute one and the same Agreement. 
 12. Headings. The section headings used herein are for convenience only and
shall not affect the construction hereof. 

  
 6 

 13. Definitions. The terms which follow, when used in this Agreement, shall have the
meanings indicated. 
 “Business Day” shall mean any day other than a Saturday, a Sunday or a legal holiday or a day on
which banking institutions or trust companies are authorized or obligated by law to close in Houston, Texas. 
 “Closing
Date” shall mean the date of the initial funding under the GP Term Loan Facility and under the LP Bridge Facility (or of the issuance and sale of the Senior Notes in lieu of funding the LP Bridge Facility). 

“Common Unit” means a common unit representing a limited partner interest in the Partnership having the rights set forth in
the Partnership Agreement. 
 “Partnership Agreement” means the First Amended and Restated Agreement of Limited Partnership
of Compressco Partners, L.P., dated effective as of June 20, 2011. 
 “Securities Act” shall mean the Securities Act
of 1933, as amended, and the rules and regulations of the Securities and Exchange Commission promulgated thereunder. 
 [Signature Page
Follows] 

  
 7 

 IN WITNESS WHEREOF, the Parties to this Agreement have caused it to be duly executed as of the
Execution Date. 
  

			
	COMPRESSCO PARTNERS L.P.
		
	By:	 	Compressco Partners GP Inc.,
		 	its general partner
		
	By:	 	 /s/ Ronald J. Foster

		 	Ronald J. Foster
		 	President
	
	COMPRESSCO PARTNERS GP INC.
		
	By:	 	 /s/ Ronald J. Foster

		 	Ronald J. Foster
		 	President
	
	TETRA TECHNOLOGIES, INC.
		
	By:	 	 /s/ Stuart M. Brightman

		 	Stuart M. Brightman
		 	President and CEO

 [Signature Page to Contribution and Unit Purchase Agreement]

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