Document:

EX-10.1

 Exhibit 10.1 

EXECUTION DRAFT 

FIFTH AMENDMENT TO AMENDED AND RESTATED 

REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT 

THIS FIFTH AMENDMENT TO AMENDED AND RESTATED REVOLVING CREDIT, TERM LOAN AND SECURITY AGREEMENT (this “Amendment”) is made
and entered into effective as of March 31, 2016 (the “Effective Date”), by and among FLOTEK INDUSTRIES, INC., a corporation organized under the laws of the State of Delaware (“Holdings”), FLOTEK CHEMISTRY, LLC,
a limited liability company organized under the laws of the State of Oklahoma (“Flotek Chemistry”), CESI MANUFACTURING, LLC, a limited liability company organized under the laws of the State of Oklahoma (“CESI
Manufacturing”), MATERIAL TRANSLOGISTICS, INC., a corporation organized under the laws of the State of Texas (“MTI”), TELEDRIFT COMPANY, a corporation organized under the laws of the State of Delaware
(“Teledrift”), TURBECO, INC., a corporation organized under the laws of the State of Texas (“Turbeco”), USA PETROVALVE, INC., a corporation organized under the laws of the State of Texas (“USA
Petrovalve”), FLORIDA CHEMICAL COMPANY, INC., a corporation organized under the laws of the State of Delaware (“Florida Chemical”), SITELARK LLC, a limited liability company organized under the laws of the State of Texas
(“Sitelark”), FLOTEK ECUADOR MANAGEMENT LLC, a limited liability company organized under the laws of the State of Texas (“Ecuador Management”), FLOTEK ECUADOR INVESTMENTS LLC, a limited liability company organized
under the laws of the State of Texas (“Ecuador Investments”), FLOTEK EXPORT, INC., a corporation organized under the laws of the State of Texas (“Export”), ECLIPSE IOR SERVICES, LLC, a limited liability company
organized under the laws of the State of Texas (“EOGA”), FRACMAX ANALYTICS, LLC, a limited liability company organized under the laws of the State of Texas (“Fracmax”), FC PRO, LLC, a limited liability company
organized under the laws of the State of Delaware (“FC PRO”), FLOTEK HYDRALIFT, INC., a corporation organized under the laws of the State of Texas (“Hydralift”; and together with Holdings, Flotek Chemistry, CESI
Manufacturing, MTI, Teledrift, Turbeco, USA Petrovalve, Florida Chemical, Sitelark, Ecuador Management, Ecuador Investments, Export, EOGA, Fracmax and FC PRO, collectively, the “Borrowers” and each individually, a
“Borrower”), the financial institutions which are now or which hereafter become a party thereto (collectively, the “Lenders” and each individually a “Lender”), and PNC BANK, NATIONAL ASSOCIATION
(“PNC”), as a Lender and as agent for Lenders (in such capacity, “Agent”). 
 PRELIMINARY STATEMENTS

 A. Borrowers, Lenders and Agent are parties to that certain Amended and Restated Revolving Credit, Term Loan and Security Agreement
dated May 10, 2013, as amended by that certain First Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated as of December 31, 2013, that certain Second Amendment to Amended and Restated Revolving
Credit, Term Loan and Security Agreement, dated as of December 5, 2014, that certain Third Amendment to Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated as of June 19, 2015, and that certain Fourth Amendment
to Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated as of July 21, 2015 (as it may be further amended, restated, supplemented, or otherwise modified from time to time, the “Credit Agreement”); and 

  
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 B. Borrowers have requested that Agent make certain amendments to the Credit Agreement and
subject to the terms and conditions set forth herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Agent and Lenders are willing to do so, all as set forth herein. 

NOW, THEREFORE, in consideration of the premises herein contained and other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties, intending to be legally bound, agree as follows: 
 ARTICLE I 

DEFINITIONS 

1.01 Capitalized terms used in this Amendment are defined in the Credit Agreement, as amended hereby, unless otherwise stated.

 ARTICLE II 

AMENDMENT 
 2.01
Amendment to Section 1.2 – Amended Definitions. Effective as of the Effective Date, the definition of “Adjusted EBITDA” set forth in Section 1.2 is hereby deleted in its entirety and replaced with the
following: 
 “Adjusted EBITDA” shall mean for any period the sum of (a) net income (or loss) of
Holdings and its Subsidiaries on a consolidated basis for such period (excluding extraordinary gains), plus (b) all interest expense of Holdings and its Subsidiaries on a consolidated basis for such period, plus (c) all charges against
income of Holdings and its Subsidiaries for such period for federal, state and local taxes plus (d) depreciation expenses for such period, plus (e) amortization expenses for such period, plus (f) non-cash income reduction adjustments
derived from or related to stock-based compensation, plus (g) charges related to the write-down or impairment of Inventory and fixed assets for such period (up to a maximum amount of $23,000,000 for the fiscal year ending December 31,
2015), and, for the purposes of the calculation of Excess Cash Flow, all charges related to the write-down or impairment of Inventory and fixed assets (without limitation) for such period. 

2.02 Amendment to Section 1.2 – Amended Definitions. Effective as of the Effective Date, the table in the definition
of “Applicable Margin” set forth in Section 1.2 is hereby deleted in its entirety and replaced with the following: 

  
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	 Level
	  	 Facility Usage
	  	LIBOR Rate
Loans –
Revolving
Advances	 	 	LIBOR
Rate Loans
– Term
Loans	 	 	Base Rate
Loans –
Revolving
Advances	 	 	Base Rate
Loans –
Term
Loans	 
	 Level I
	  	If Average Undrawn Availability is greater than 35% of the Maximum Revolving Advance Amount	  	 	2.50	% 	 	 	3.25	% 	 	 	1.50	% 	 	 	2.25	% 
	 Level II
	  	If Average Undrawn Availability is greater than 20% but less than or equal to 35% of the Maximum Revolving Advance Amount	  	 	2.75	% 	 	 	3.50	% 	 	 	1.75	% 	 	 	2.50	% 
	 Level III
	  	If Average Undrawn Availability is less than or equal to 20% of the Maximum Revolving Advance Amount	  	 	3.00	% 	 	 	3.75	% 	 	 	2.00	% 	 	 	2.75	% 

 2.03 Amendment to Section 1.2 – New Definition. Effective as of the Effective Date,
the following new definition of “Availability Block” shall be added to Section 1.2 in proper alphabetic order:  

“Availability Block” shall mean an amount equal to $5,000,000 through and including June 30, 2017 and,
thereafter, $0. 
 2.04 Amendment to Section 1.2 – New Definition. Effective as of the Effective Date, the
definition of “Average Undrawn Availability” set forth in Section 1.2 is hereby deleted in its entirety and replaced with the following:  

“Average Undrawn Availability” shall mean, for any fiscal month, the sum of Borrower’s Undrawn
Availability for each day during such month, divided by the number of days in such month, as evidenced by the monthly Borrowing Base Certificates delivered hereunder. 

2.05 Amendment to Section 1.2 – Amended Definitions. Effective as of the Effective Date, the definition of
“Excess Cash Flow” set forth in Section 1.2 is hereby deleted in its entirety and replaced with the following: 

  
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 “Excess Cash Flow” shall mean, for any fiscal period, in each
case for Holdings and its Subsidiaries on a consolidated basis, Adjusted EBITDA, minus each of the following, to the extent actually paid in cash during such fiscal period, Unfunded Capital Expenditures, taxes, dividends and distributions,
and Debt Payments. 
 2.06 Amendment to Section 1.2 – Amended Definitions. Effective as of the Effective Date, the
definition of “Undrawn Availability” set forth in Section 1.2 is hereby deleted in its entirety and replaced with the following: 

“Undrawn Availability” at a particular date shall mean an amount equal to (a) the lesser of (i) the
Formula Amount or (ii) the Maximum Revolving Advance Amount, minus the amount of reserves (if any) established in accordance with Section 2.1(a)(y)(iv) and the Availability Block set forth in Section 2.1(a)(y)(v), minus
the Maximum Undrawn Amount of all outstanding Letters of Credit, minus (b) the sum of (i) the outstanding amount of Advances (other than the Term Loan) plus (ii) all amounts due and owing to any Borrower’s trade
creditors which are outstanding sixty (60) days or more past their due date, plus (iii) fees and expenses incurred in connection with the Transactions for which Borrowers are liable but which have not been paid or charged to
Borrowers’ Account, plus (iv) all other past due Indebtedness (excluding trade payables) included in the calculation of clause (iii) above. 

2.07 Amendment to Section 2.1. Effective as of the Effective Date, Section 2.1(a) of the Credit Agreement is
hereby amended and restated in its entirety and replaced with the following: 
 (a) Amount of Revolving
Advances. Subject to the terms and conditions set forth in this Agreement specifically including Section 2.1(b), each Lender, severally and not jointly, will make Revolving Advances to Borrowers in aggregate amounts outstanding at any time
equal to such Lender’s Revolving Commitment Percentage of the lesser of (x) the Maximum Revolving Advance Amount, less the outstanding amount of Swing Loans, less the aggregate Maximum Undrawn Amount of all outstanding
Letters of Credit, less the Availability Block or (y) an amount equal to the sum of: 
 (i) up to eighty-five
percent (85%), subject to the provisions to Section 2.1(b) hereof (the “Receivables Advance Rate”), of Eligible Receivables, plus 

(ii) up to the lesser of (A) seventy-percent (70%), subject to the provisions to Section 2.1(b) hereof, of the
Eligible Inventory, (B) eighty-five percent (85%), subject to the provisions 

  
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to Section 2.1(b) hereof, of the value percentage of the appraised net orderly liquidation value of Eligible Inventory (as evidenced by an Inventory appraisal satisfactory to Agent in its
sole discretion exercised in good faith) and (C) $50,000,000 in the aggregate at any one time (“Inventory Advance Rate” and together with the Receivables Advance Rate, collectively, the “Advance Rates”),
minus 
 (iii) the aggregate Maximum Undrawn Amount of all outstanding Letters of Credit, minus 

(iv) such reserves as Agent may deem proper and necessary in the exercise of its Permitted Discretion from time to time,
minus 
 (v) the Availability Block. 

The amount derived from the sum of (x) Sections 2.1(a)(y)(i) and (ii) minus
(y) Section 2.1(a)(y)(iv) and (v) at any time and from time to time shall be referred to as the “Formula Amount”. Subject to the provisions of Section 2.1(b), the Formula Amount applicable at any time shall be
calculated as set forth in the Borrowing Base Certificate delivered pursuant to Section 9.2 and approved by Agent in its sole discretion. The Revolving Advances shall be evidenced by one or more secured promissory notes, substantially in the
form attached hereto as Exhibit 2.1(a) (as the same may be amended, amended and restated, renewed, replaced, supplemented and/or otherwise modified from time to time, collectively, the “Revolving Credit Note”). 

2.08 Amendment to Section 2.3. Effective as of the Effective Date, the last two sentences of Section 2.3 are
hereby deleted in their entirety and replaced with the following: 
 Following the completion of each Equipment and Real Estate
appraisal performed in accordance with Section 9.19 hereof, the Term Loan Overadvance Component will be redetermined to equal the amount by which the Term Loan exceeds the Appraised Value. The Term Loan Overadvance Component shall be adjusted
downward for any payments of principal of the Term Loan after the First Amendment Closing Date and Borrowers shall be obligated to immediately prepay, upon request of Agent, the Term Loan in an amount sufficient to eliminate the amount by which the
then outstanding principal amount of the Term Loan exceeds the Appraised Value. 
 2.09 Amendment to Section 2.4.
Effective as of the Effective Date, the first sentence of Section 2.4(a) is hereby deleted in its entirety and replaced with the following: 

Subject to the terms and conditions set forth in this Agreement, and in order to minimize the transfer of funds between Lenders and Agent for
administrative convenience, Agent, Lenders holding Revolving Commitments and Swing Loan 

  
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Lender agree that in order to facilitate the administration of this Agreement, Swing Loan Lender may, at its election and option made in its sole discretion cancelable at any time for any reason
whatsoever, make swing loan advances (“Swing Loans”) available to Borrowers as provided for in this Section 2.4 at any time or from time to time after the date hereof to, but not including, the expiration of the Term, in an
aggregate principal amount up to but not in excess of the Maximum Swing Loan Advance Amount; provided, that, the outstanding aggregate principal amount of Swing Loans and the Revolving Advances at any one time outstanding shall not exceed an
amount equal to the lesser of (i) the Maximum Revolving Advance Amount less the Maximum Undrawn Amount of all outstanding Letters of Credit less the Availability Block or (ii) the Formula Amount. 

2.10 Amendment to Section 2.7. Effective as of the Effective Date, Section 2.7 is hereby deleted in its
entirety and replaced with the following: 
 2.7 Maximum Advances. The aggregate balance of Revolving Advances
plus Swing Loans outstanding at any time shall not exceed the lesser of (a) the Maximum Revolving Advance Amount less the Availability Block or (b) the Formula Amount less, in each case, the aggregate Maximum Undrawn Amount
of all issued and outstanding Letters of Credit. The aggregate balance of Advances outstanding at any time shall not exceed the Maximum Loan Amount 

2.11 Amendment to Section 2.11. Effective as of the Effective Date, Section 2.11(a) is hereby deleted in its
entirety and replaced with the following: 
 (a) Subject to the terms and conditions hereof, Issuer shall issue or
cause the issuance of standby and/or trade letters of credit denominated in Dollars (“Letters of Credit”) for the account of any Borrower except to the extent that the issuance thereof would then cause the sum of (i) the
outstanding Revolving Advances plus (ii) the outstanding Swing Loans to such Borrower, plus (iii) the Maximum Undrawn Amount of all outstanding Letters of Credit to exceed the lesser of (x) the Maximum Revolving Advance
Amount less the Availability Block or (y) the Formula Amount; provided, further, however that, Issuer will not be required to issue or cause to be issued any Letters of Credit to the extent that the issuance thereof
would then cause the sum of (i) the outstanding Revolving Advances plus (ii) the outstanding Swing Loans, plus (iii) the Maximum Undrawn Amount of all outstanding Letters of Credit to exceed the lesser of (x) the
Maximum Revolving Advance Amount less the Availability Block or (y) the Formula Amount. The Maximum Undrawn Amount of all outstanding Letters of Credit shall not exceed in the aggregate at any time the Letter of Credit Sublimit. All
disbursements or payments related to Letters of Credit shall be deemed to be Domestic Rate Loans consisting of Revolving Advances and shall bear interest at the Revolving Interest Rate for Domestic Rate Loans. Letters of Credit that have not been
drawn upon shall not bear interest (but fees shall accrue in respect of outstanding Letters of Credit as provided in Section 3.2 hereof). 

  
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 2.12 Amendment to Section 2.14. Effective as of the Effective Date,
Section 2.14(b) is hereby deleted in its entirety and replaced with the following: 
 (b) In the event of
any request for a drawing under a Letter of Credit by the beneficiary or transferee thereof, Issuer will promptly notify Agent and Borrowing Agent. Regardless of whether Borrowing Agent shall have received such notice, Borrowers shall reimburse
(such obligation to reimburse Issuer shall sometimes be referred to as a “Reimbursement Obligation”) Issuer prior to 12:00 p.m., on each date that an amount is paid by Issuer under any Letter of Credit (each such date, a
“Drawing Date”) in an amount equal to the amount so paid by Issuer. In the event Borrowers fail to reimburse Issuer for the full amount of any drawing under any Letter of Credit by 12:00 p.m., on the Drawing Date, Issuer will
promptly notify Agent and each Lender holding a Revolving Commitment thereof, and Borrowers shall be automatically deemed to have requested that a Revolving Advance maintained as a Domestic Rate Loan be made by Lenders to be disbursed on the Drawing
Date under such Letter of Credit, subject to the amount of the unutilized portion of the lesser of Maximum Revolving Advance Amount less the Availability Block or the Formula Amount, less, in each case, the Maximum Undrawn Amount of all
Letters of Credit and subject to Section 8.2 hereof. Any notice given by Issuer pursuant to this Section 2.14(b) may be oral if promptly confirmed in writing; provided, that, the lack of such a confirmation shall not affect the
conclusiveness or binding effect of such notice. 
 2.13 Amendment to Section 6.5. Effective as of the Effective Date,
Section 6.5 of the Credit Agreement is hereby amended and restated in its entirety and replaced with the following: 

(a) Fixed Charge Coverage Ratio. Commencing on June 30, 2017, cause to be maintained, a Fixed Charge Coverage Ratio
of not less than 1.10 to 1.00 as of the last day of each fiscal quarter for the four (4) fiscal quarter period then ending. 

(b) Leverage Ratio. Commencing on June 30, 2017, cause to be maintained, a ratio of Funded Debt to Adjusted EBITDA
of not greater than 4.00 to 1.00 as of the last day of each fiscal quarter for the four (4) fiscal quarter period then ending. 

(c) Minimum Adjusted EBITDA. Cause to be maintained as of the last day of each period in the table below, Adjusted
EBITDA at least equal to the applicable amount set forth in the table below for such period. 
  

					
	 Period
	  	Minimum Adjusted EBITDA	 
	 as of September 30, 2016, for the two fiscal quarters then most recently ended
	  	$	8,400,000	  
	 as of December 31, 2016, for the three fiscal quarters then most recently ended
	  	$	12,400,000	  
	 as of March 31, 2017, for the four fiscal quarters then most recently ended
	  	$	16,400,000	  

  
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 (d) Minimum Average Undrawn Availability. Cause to be maintained as of the
last day of each month through and including June 30, 2017, Average Undrawn Availability (without giving effect to the Availability Block) at least equal to $10,000,000. 

2.14 Amendment to Section 7.6. Effective as of the Effective Date, Section 7.6 of the Credit Agreement is
hereby amended and restated in its entirety and replaced with the following: 
 7.6 Capital Expenditures.
Contract for, purchase or make any expenditure or commitments for Capital Expenditures in (i) in fiscal year 2016 in an aggregate amount in excess of $25,000,000 and (ii) any fiscal year other than 2016 in an aggregate amount in excess of
$32,000,000. For purposes of this Section 7.6, the amount of “lost in hole” revenue of Borrowers shall be subtracted from the amounts deemed or paid for Capital Expenditures. 

2.15 Amendment to Section 9.9. Effective as of the Effective Date, Section 9.9 of the Credit Agreement is
hereby amended and restated in its entirety and replaced with the following: 
 9.9 Monthly Financial
Statements. Furnish Agent, for distribution to the Lenders within thirty (30) days after the end of each fiscal month (which shall be delivered in accordance with Sections 9.7 and 9.8 as applicable), an unaudited balance sheet of Holdings
and its Subsidiaries on a consolidated basis and unaudited statements of income and stockholders’ equity and cash flow of Holdings and its Subsidiaries on a consolidated basis reflecting results of operations from the beginning of the fiscal
year to the end of such calendar month and for such month, prepared on a basis consistent with prior practices and complete and correct in all material respects, subject to normal and recurring year-end adjustments that individually and in the
aggregate are not material to the business operations of Holdings or its Subsidiaries. 
 2.16 Amendment to Section 9.19.
Effective as of the Effective Date, Section 9.19 of the Credit Agreement is hereby amended and restated in its entirety and replaced with the following: 

9.19 Appraisals and Field Examinations. Permit Agent or Agent’s representatives to (a) perform full Inventory
and Equipment appraisals in form and substance satisfactory to Agent at Borrowers’ cost and expense within ninety (90) days after April 29, 2016 and, thereafter, at Agent’s discretion, but in any event no less frequently than on
an annual basis, to determine, among other things, the net orderly liquidation value of such Collateral (each appraisal contemplated in this Section 9.19 or performed by Agent prior to the Closing Date shall each be an “NOLV
Appraisal”), (b) at Agent’s discretion, obtain Real 

  
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Property appraisals at Borrowers’ cost and expense but no more frequently than on an annual basis prior to the occurrence of an Event of Default (thereafter, as Agent shall require in its
discretion) and (c) conduct field examinations at Credit Parties’ cost and expense as Agent deems appropriate in Agent’s sole discretion, but in no case less frequently than on an annual basis. 

ARTICLE III 

CONDITIONS PRECEDENT 

3.01 Conditions to Effectiveness. The effectiveness of this Amendment is subject to the satisfaction of the following conditions
precedent, unless specifically waived in writing by Agent: 
 (a) Agent shall have received the following documents or
items, each in form and substance satisfactory to Agent and its legal counsel: 
 (i) this Amendment duly executed by each
Borrower; 
 (ii) a $147,026 amendment fee, in immediately available funds, which fee shall be distributed ratably amongst
the Lenders and shall be fully earned and non-refundable as of the date hereof; 
 (iii) a certificate certified by the
Secretary of each Borrower dated as of the date hereof including (A) all amendments (if any) to its certificate of formation, operating agreement, or other organizational documents entered into since the date of the Credit Agreement,
(B) the names of the officers of each Borrower authorized to sign this Amendment and the Other Documents to which such Borrower is or will be a party to, together with specimen signatures of such officers and (C) evidence that each
Borrower’s governing body has by unanimous written consent adopted resolutions which authorize the execution, delivery and performance by such Borrower of this Amendment; 

(iv) all other documents Agent may reasonably request with respect to any matter relevant to this Amendment or the transactions
contemplated hereby; and 
 (v) all other fees, costs and expenses owed to or incurred by Agent and Lenders arising in
connection with the Credit Agreement, the Other Documents, or this Amendment. 
 (b) The representations and warranties
contained herein and in the Credit Agreement and the Other Documents, as each is amended hereby, shall be true and correct as of the date hereof, as if made on the date hereof; and 

(c) No Default or Event of Default shall have occurred and be continuing. 

  
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 3.02 No Waiver. Nothing contained in this Amendment shall be construed as a waiver
by Agent or any Lender of any covenant or provision of the Credit Agreement (as amended hereby), the Other Documents, this Amendment, or of any other contract or instrument between any Borrower and Agent or any Lender, and the failure of Agent or
any Lender at any time or times hereafter to require strict performance by any Borrower of any provision thereof shall not waive, affect or diminish any right of Agent to thereafter demand strict compliance therewith. Agent and each Lender hereby
reserve all rights granted under the Credit Agreement, the Other Documents, this Amendment and any other contract or instrument between any Borrower, Lenders and Agent. 

ARTICLE IV 

RATIFICATIONS, REPRESENTATIONS, WARRANTIES AND OTHER AGREEMENTS 

4.01 Ratifications. The terms and provisions set forth in this Amendment shall modify and supersede all inconsistent terms and
provisions set forth in the Credit Agreement and the Other Documents, and, except as expressly modified and superseded by this Amendment, the terms and provisions of the Credit Agreement and the Other Documents are ratified and confirmed and shall
continue in full force and effect. Each Borrower hereby agrees that all liens and security interest securing payment of the Obligations under the Credit Agreement are hereby collectively renewed, ratified and brought forward as security for the
payment and performance of the Obligations. Each Borrower and Agent agree that the Credit Agreement and the Other Documents, as amended hereby, shall continue to be legal, valid, binding and enforceable in accordance with their respective terms. 

 4.02 Representations and Warranties with respect to Other Documents. Each Borrower hereby represents and warrants to
Agent that (a) the execution, delivery and performance of this Amendment and any and all Other Documents executed and/or delivered in connection herewith have been authorized by all requisite corporate action on the part of each Borrower and
will not violate the Articles or Certificate of Incorporation or By-Laws or the Certificate of Formation or Operating Agreement of any Borrower; (b) the representations and warranties contained in the Credit Agreement, as amended hereby, and
the Other Documents are true and correct on and as of the date hereof and on and as of the date of execution hereof as though made on and as of each such date; (c) no Default or Event of Default under the Credit Agreement, as amended hereby,
has occurred and is continuing, unless such Default or Event of Default has been specifically waived in writing by Agent; and (d) each Borrower is in full compliance with all covenants and agreements contained in the Credit Agreement and the
Other Documents, as amended hereby. 
 ARTICLE V 

MISCELLANEOUS PROVISIONS 

5.01 Survival of Representations and Warranties. All representations and warranties made in the Credit Agreement or the Other
Documents, including, without limitation, any document furnished in connection with this Amendment, shall survive the execution and delivery of this Amendment and the Other Documents, and no investigation by Agent or any closing shall affect the
representations and warranties or the right of Agent to rely upon them. 

  
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 5.02 Reference to Credit Agreement. Each of the Credit Agreement and the Other
Documents, and any and all other agreements, documents or instruments now or hereafter executed and delivered pursuant to the terms hereof or pursuant to the terms of the Credit Agreement, as amended hereby, are hereby amended so that any reference
in the Credit Agreement and such Other Documents to the Credit Agreement shall mean a reference to the Credit Agreement as amended hereby. 

5.03 Expenses of Agent. Each Borrower jointly and severally agrees to pay on demand all reasonable costs and expenses incurred
by Agent in connection with any and all amendments, modifications, and supplements to the Other Documents, including, without limitation, the costs and fees of Agent’s legal counsel, and all costs and expenses incurred by Agent in connection
with the enforcement or preservation of any rights under the Credit Agreement, as amended hereby, or any Other Documents, including, without, limitation, the costs and fees of Agent’s legal counsel. 

5.04 Severability. Any provision of this Amendment held by a court of competent jurisdiction to be invalid or unenforceable
shall not impair or invalidate the remainder of this Amendment and the effect thereof shall be confined to the provision so held to be invalid or unenforceable. 

5.05 Successors and Assigns. This Amendment is binding upon and shall inure to the benefit of Agent, Lenders and each Borrower
and their respective successors and assigns, except that no Borrower may assign or transfer any of its rights or obligations hereunder without the prior written consent of Agent. 

5.06 Counterparts. This Amendment may be executed in one or more counterparts, each of which when so executed shall be deemed to
be an original, but all of which when taken together shall constitute one and the same instrument. 
 5.07 Effect of
Waiver. No consent or waiver, express or implied, by Lenders or Agent to or for any breach of or deviation from any covenant or condition by any Borrower shall be deemed a consent to or waiver of any other breach of the same or any other
covenant, condition or duty. 
 5.08 Headings. The headings, captions, and arrangements used in this Amendment are for
convenience only and shall not affect the interpretation of this Amendment. 
 5.09 Applicable Law. THIS AMENDMENT AND ALL
OTHER AGREEMENTS EXECUTED PURSUANT HERETO SHALL BE DEEMED TO HAVE BEEN MADE AND TO BE PERFORMABLE IN AND SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS. 

5.10 Final Agreement. THE CREDIT AGREEMENT AND THE OTHER DOCUMENTS, EACH AS AMENDED HEREBY, REPRESENT THE ENTIRE EXPRESSION
OF THE PARTIES WITH RESPECT TO THE SUBJECT MATTER HEREOF ON THE DATE THIS AMENDMENT IS EXECUTED. THE CREDIT AGREEMENT AND THE OTHER DOCUMENTS, AS AMENDED HEREBY, MAY NOT 

  
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BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES. NO MODIFICATION, RESCISSION,
WAIVER, RELEASE OR AMENDMENT OF ANY PROVISION OF THIS AMENDMENT SHALL BE MADE, EXCEPT BY A WRITTEN AGREEMENT SIGNED BY BORROWERS AND AGENT. 

5.11 Release. EACH BORROWER HEREBY ACKNOWLEDGES THAT IT HAS NO DEFENSE, COUNTERCLAIM, OFFSET,
CROSS-COMPLAINT, CLAIM OR DEMAND OF ANY KIND OR NATURE WHATSOEVER THAT CAN BE ASSERTED TO REDUCE OR ELIMINATE ALL OR ANY PART OF ITS LIABILITY TO REPAY ANY LOANS OR EXTENSIONS OF CREDIT FROM AGENT AND LENDERS
TO SUCH BORROWER UNDER THE CREDIT AGREEMENT OR THE OTHER DOCUMENTS OR TO SEEK AFFIRMATIVE RELIEF OR DAMAGES OF ANY KIND OR NATURE FROM LENDERS AND AGENT. EACH BORROWER HEREBY VOLUNTARILY AND KNOWINGLY RELEASES AND FOREVER DISCHARGES LENDERS, AGENT,
THEIR PREDECESSORS, AGENTS, EMPLOYEES, SUCCESSORS AND ASSIGNS, FROM ALL POSSIBLE CLAIMS, DEMANDS, ACTIONS, CAUSES OF ACTION, DAMAGES, COSTS, EXPENSES, AND LIABILITIES WHATSOEVER, KNOWN OR UNKNOWN, ANTICIPATED OR UNANTICIPATED, SUSPECTED OR
UNSUSPECTED, FIXED, CONTINGENT, OR CONDITIONAL, AT LAW OR IN EQUITY, ORIGINATING IN WHOLE OR IN PART ON OR BEFORE THE DATE THIS AMENDMENT IS EXECUTED, WHICH SUCH BORROWER MAY NOW OR HEREAFTER HAVE AGAINST LENDERS AND AGENT, THEIR PREDECESSORS,
AGENTS, EMPLOYEES, SUCCESSORS AND ASSIGNS, IF ANY, AND IRRESPECTIVE OF WHETHER ANY SUCH CLAIMS ARISE OUT OF CONTRACT, TORT, VIOLATION OF LAW OR REGULATIONS, OR OTHERWISE, AND ARISING FROM ANY LOANS OR EXTENSIONS OF CREDIT FROM LENDERS AND AGENT TO
SUCH BORROWER UNDER THE CREDIT AGREEMENT OR THE OTHER DOCUMENTS, INCLUDING, WITHOUT LIMITATION, ANY CONTRACTING FOR, CHARGING, TAKING, RESERVING, COLLECTING OR RECEIVING INTEREST IN EXCESS OF THE HIGHEST LAWFUL RATE APPLICABLE, THE EXERCISE OF ANY
RIGHTS AND REMEDIES UNDER THE CREDIT AGREEMENT OR OTHER DOCUMENTS, AND NEGOTIATION FOR AND EXECUTION OF THIS AMENDMENT. 
 5.12
Guarantors Consent, Ratification and Release. Each of the undersigned Guarantors hereby consents to the terms of this Amendment, confirms and ratifies the terms of that certain Guaranty dated as of May 10, 2013 (the “FTK
Guaranty”) executed by each of the undersigned in favor of Agent and the other Lenders. Each of the undersigned Guarantors acknowledges that its Guaranty is in full force and effect and ratifies the same, acknowledges that such undersigned
has no defense, counterclaim, set-off or any other claim to diminish such undersigned’s liability under such documents, that such undersigned’s consent is not required to the effectiveness of the within and foregoing Amendment, and that no
consent by any such undersigned is required for the effectiveness of any future amendment, modification, forbearance or other action with respect to the Obligations, the Collateral, or any of the Other Documents. EACH OF THE UNDERSIGNED HEREBY
VOLUNTARILY AND KNOWINGLY RELEASES AND FOREVER DISCHARGES AGENT AND LENDERS, THEIR  

  
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 12 

 
PREDECESSORS, AGENTS, EMPLOYEES, SUCCESSORS AND ASSIGNS, FROM ALL POSSIBLE CLAIMS, DEMANDS, ACTIONS, CAUSES OF ACTION, DAMAGES, COSTS, EXPENSES, AND LIABILITIES WHATSOEVER, KNOWN OR UNKNOWN,
ANTICIPATED OR UNANTICIPATED, SUSPECTED OR UNSUSPECTED, FIXED, CONTINGENT, OR CONDITIONAL, AT LAW OR IN EQUITY, ORIGINATING IN WHOLE OR IN PART ON OR BEFORE THE DATE THIS AMENDMENT AND THIS CONSENT ARE EXECUTED, WHICH EACH SUCH UNDERSIGNED MAY NOW
OR HEREAFTER HAVE AGAINST AGENT, DOCUMENTATION AGENT OR ANY LENDER, THEIR PREDECESSORS, AGENTS, EMPLOYEES, SUCCESSORS AND ASSIGNS, IF ANY, AND IRRESPECTIVE OF WHETHER ANY SUCH CLAIMS ARISE OUT OF CONTRACT, TORT, VIOLATION OF LAW OR REGULATIONS, OR
OTHERWISE, AND ARISING FROM ANY “LOANS”, INCLUDING, WITHOUT LIMITATION, ANY CONTRACTING FOR, CHARGING, TAKING, RESERVING, COLLECTING OR RECEIVING INTEREST IN EXCESS OF THE HIGHEST LAWFUL RATE APPLICABLE, THE EXERCISE OF ANY RIGHTS AND
REMEDIES UNDER THE REVOLVING CREDIT AND SECURITY AGREEMENT, AS AMENDED BY THIS AMENDMENT, OR THE OTHER DOCUMENTS, AND NEGOTIATION FOR AND EXECUTION OF THIS AMENDMENT AND THIS CONSENT. 

[REMAINDER OF PAGE INTENTIONALLY BLANK; SIGNATURE
PAGES FOLLOW.] 

  
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 13 

 IN WITNESS WHEREOF, each of the parties hereto has executed this Amendment as of the Effective
Date. 
  

					
	BORROWERS:
		
		 	 FLOTEK INDUSTRIES, INC., a Delaware

corporation

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 FLOTEK CHEMISTRY, LLC an Oklahoma

limited liability company

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO
		
		 	 CESI MANUFACTURING, LLC, an Oklahoma

limited liability company

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO
		
		 	 MATERIAL TRANSLOGISTICS, INC.,

a Texas corporation

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 TELEDRIFT COMPANY, a Delaware

corporation

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President

  
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 14 

					
		 	TURBECO, INC., a Texas corporation
			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 USA PETROVALVE, INC., a Texas

corporation

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 FLORIDA CHEMICAL COMPANY, INC., a

Delaware corporation

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 SITELARK LLC, a Texas limited liability

company

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO
		
		 	 FLOTEK ECUADOR MANAGEMENT

LLC, a Texas limited liability company

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 FLOTEK ECUADOR INVESTMENTS

LLC, a Texas limited liability company

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President

  
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 15 

					
		 	 FLOTEK EXPORT, INC., a Texas

corporation

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 FLOTEK HYDRALIFT, INC., a Texas

corporation

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 FRACMAX ANALYTICS, LLC, a Texas

limited liability company

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	 FC PRO, LLC, a Delaware limited liability

company

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO
		
		 	 ECLIPSE IOR SERVICES, LLC, a Texas

limited liability company

			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO

  
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 16 

					
	GUARANTORS:
		
		 	FLOTEK PAYMASTER, INC.
			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President
		
		 	FLOTEK INTERNATIONAL, INC.
			
		 	By:	 	 /s/ John Chisholm

		 	Name:	 	John Chisholm
		 	Title:	 	CEO and President

  
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Credit Agreement 

  
 17 

					
		 	AGENT:
		
		 	 PNC BANK, NATIONAL ASSOCIATION, as

Agent and Lender

			
		 	By:	 	 /s/ Anita Puligandla

		 	Name:	 	Anita Puligandla
		 	Title:	 	Vice President

  
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 18 

					
		 	LENDERS:
		
		 	 CAPITAL ONE BUSINESS CREDIT CORP., as

Lender

 
					
			
		 	By:	 	 /s/ Micah Spellman

		 	Name:	 	Micah Spellman
		 	Title:	 	Vice President

  
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 19EX-4.1

 Exhibit 4.1 

FOURTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 31, 2016, among CHS/COMMUNITY HEALTH SYSTEMS, INC.,
a Delaware corporation (the “Issuer”), the party identified as a New Subsidiary Guarantor on the signature pages hereto (the “New Subsidiary Guarantor”) and REGIONS BANK, as successor Trustee under the Indenture
(the “Trustee”). 
 W I T N E S S E T H: 

WHEREAS, each of the Issuer, the Guarantors and the Trustee have heretofore executed and delivered an Indenture as amended, supplemented,
waived or otherwise modified (the “Indenture”), dated as of November 22, 2011, providing for the issuance of the 8.000% Senior Notes due 2019 (the “Securities”); 

WHEREAS, the undersigned New Subsidiary Guarantor has deemed it advisable and in its best interest to execute and deliver this Supplemental
Indenture, and to become a New Subsidiary Guarantor under the Indenture; and 
 WHEREAS, pursuant to Section 9.01(4) of the Indenture,
the Trustee, the Issuer and the New Subsidiary Guarantor are authorized to execute and deliver this Supplemental Indenture. 
 NOW THEREFORE,
in consideration of the foregoing and for good and valuable consideration, the receipt of which is hereby acknowledged, the Issuer, the New Subsidiary Guarantor and the Trustee mutually covenant and agree for the equal and ratable benefit of the
Holders of the Securities as follows: 
 SECTION 1. Capitalized Terms. Capitalized terms used herein but not defined shall have the
meanings assigned to them in the Indenture. 
 SECTION 2. Guaranties. The New Subsidiary Guarantor hereby agrees to guarantee the
Issuer’s obligations under the Securities on the terms and subject to the conditions set forth in Article 10 of the Indenture and to be bound by all other applicable provisions of the Indenture as a Subsidiary Guarantor. 

SECTION 3. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly amended hereby, the Indenture is in
all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, shall inure to the benefit of the
Trustee and every Holder of Securities heretofore or hereafter authenticated and the Issuer, the Trustee and every Holder of Securities heretofore or hereafter authenticated and delivered shall be bound hereby. 

SECTION 4. Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE
OF NEW YORK.  
 SECTION 5. Trustee Makes No Representation. The Trustee makes no representation as to the validity or sufficiency
of this Supplemental Indenture. 
 SECTION 6. Counterparts. The parties may sign any number of copies of this Supplemental Indenture.
Each signed copy shall be an original, but all of them together represent the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or other electronic transmission shall constitute effective
execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or other electronic
transmission shall be deemed to be their original signatures for all purposes. 

  
 1 

 SECTION 7. Effect of Headings. The Section headings herein are for convenience only and
shall not effect the construction of this Supplemental Indenture. 
 [Signature page follows] 

  
 2 

			
		 	 IN WITNESS WHEREOF, the parties have caused this Supplemental Indenture to be duly executed as of this 31st day of March, 2016.
  

 
	
	 CHS/Community Health Systems, Inc.,
 a Delaware
corporation
  

	 By: /s/ James W. Doucette                

     James W. Doucette

     Senior Vice President and Treasurer

	  
 Laredo Texas Hospital Company, L.P.,

a Texas limited partnership
  

	 By: Webb Hospital Corporation, its general partner

 
     By: /s/ James W.
Doucette            
         James W. Doucette

        Senior Vice President and Treasurer

 

	 Regions Bank, as Trustee
  

By:  /s/ Wallace
Duke                        

    Wallace Duke
     Vice
President

  
 3

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