Document:

EX-10.20.2

 Exhibit 10.20.2 

RATIFICATION OF LIMITED GUARANTIES 

This Ratification of Limited Guaranties is signed effective June 14, 2018, by GARY B. HUMPHREYS and
MARTIN W. ROBERTSON (collectively “Guarantors”) in connection with the Revolving Loan made by PLAINSCAPITAL BANK (“Lender”) to
LONESTAR PROSPECTS, LTD. (“Borrower”), a Texas limited partnership. The Revolving Loan is defined in and governed by the Amended and Restated Loan Agreement dated January 12, 2018,
between Borrower and Lender, as amended by that certain First Amendment dated February 20, 2018, as amended by that Second Amendment dated of even date, and as now or hereafter amended, restated, replaced, supplemented, or otherwise modified,
from time to time (collectively the “Loan Agreement”). Capitalized terms not otherwise defined have the meanings assigned in the Loan Agreement. 

1. Guaranties. Each of the Guarantors is legally obligated under a Fourth Restated Limited Guaranties dated September 3, 2015,
executed by each of the respective Guarantors in favor of Lender in connection with the Loans to Borrower (each a “Guaranty”, and collectively the “Guaranties”). 

2. Ratification. Each of the Guarantors consents to the Loan Agreement and the Revolving Loan in the maximum amount of $60,000,000.00,
and ratifies and confirms their respective Guaranty, acknowledges that their Guaranty is valid, subsisting, and binding upon the respective Guarantors, and agrees that their Guaranty guarantees payment of the Loans (including the Revolving Loan),
and the Notes (including the Revolving Note) in accordance with the terms of the respective Guaranty. 
 3. Notice of Final Agreement.
As of the effective date of this Notice, Borrower, Guarantors, and Lender have consummated a transaction pursuant to which Lender has agreed to make a loan or loans to Borrower, to renew and extend an existing loan or loans to Borrower, and to
otherwise extend credit or make financial accommodations to or for the benefit of Borrower, in an aggregate amount up to $60,000,000.00 (collectively, whether one or more, the “Loans”). 

In connection with the Loans, Borrower and Lender and the undersigned Guarantors have executed and delivered and may hereafter execute and
deliver certain agreements, instruments, and documents (collectively hereinafter referred to as the “Written Loan Agreement”). 

It is the intention of Borrower, Lender, and Guarantors that this Notice be incorporated by reference into each of the written agreements,
instruments, and documents comprising the Written Loan Agreement. Borrower, Lender, and Guarantors each warrant and represent that the entire agreement made and existing by or among Borrower, Lender, and Guarantors with respect to the Loan is and
shall be contained within the Written Loan Agreement, as amended and supplemented hereby, and that no agreements or promises exist or shall exist by or among Borrower, Lender, and Guarantors that are not reflected in the Written Loan Agreement. 

 THE WRITTEN LOAN AGREEMENT REPRESENTS THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY
EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL 
 AGREEMENTS OF THE PARTIES. 

THERE ARE NO UNWRITTEN AGREEMENTS BETWEEN THE PARTIES. 

Effective as of the date stated above. 
 ACKNOWLEDGED AND
AGREED: 
  

	
	 /s/ Gary B. Humphreys

	GARY B. HUMPHREYS
	
	 /s/ Martin W. Robertson

	MARTIN W. ROBERTSON

  
 Ratification of
Limited Guaranties - Page 2EX-10.20.3

 Exhibit 10.20.3 

RATIFICATION OF UNLIMITED GUARANTIES 

This Ratification of Unlimited Guaranties is signed effective June 14, 2018, by the undersigned guarantors (collectively
“Guarantors”) in connection with the Revolving Loan made by PLAINSCAPITAL BANK (“Lender”) to LONESTAR PROSPECTS, LTD.
(“Borrower”), a Texas limited partnership. The Revolving Loan is defined in and governed by the Amended and Restated Loan Agreement dated January 12, 2018, between Borrower and Lender, as amended by that certain First Amendment
dated February 20, 2018, as amended by that certain Second Amendment dated of even date, and as now or hereafter amended, restated, replaced, supplemented, or otherwise modified, from time to time (collectively the “Loan
Agreement”). Capitalized terms not otherwise defined have the meanings assigned in the Loan Agreement. 
 1. Guaranties. Each
of the Guarantors is legally obligated under an unlimited guaranty dated January 13, 2014, or September 3, 2015, executed by each of the respective Guarantors in favor of Lender in connection with the Loans to Borrower (each a
“Guaranty”, and collectively the “Guaranties”). 
 2. Ratification. Each of the Guarantors consents to the
Loan Agreement and the Revolving Loan in the maximum amount of $60,000,000.00, and ratifies and confirms their respective Guaranty, acknowledges that their Guaranty is valid, subsisting, and binding upon the respective Guarantors, and agrees that
their Guaranty guarantees payment of the Loans (including the Revolving Loan), and the Notes (including the Revolving Note) in accordance with the terms of the respective Guaranty. 

3. Notice of Final Agreement. As of the effective date of this Notice, Borrower, Guarantors, and Lender have consummated a transaction
pursuant to which Lender has agreed to make a loan or loans to Borrower, to renew and extend an existing loan or loans to Borrower, and to otherwise extend credit or make financial accommodations to or for the benefit of Borrower, in an aggregate
amount up to $60,000,000.00 (collectively, whether one or more, the “Loans”). 
 In connection with the Loans, Borrower and
Lender and the undersigned Guarantors have executed and delivered and may hereafter execute and deliver certain agreements, instruments, and documents (collectively hereinafter referred to as the “Written Loan Agreement”). 

It is the intention of Borrower, Lender, and Guarantors that this Notice be incorporated by reference into each of the written agreements,
instruments, and documents comprising the Written Loan Agreement. Borrower, Lender, and Guarantors each warrant and represent that the entire agreement made and existing by or among Borrower, Lender, and Guarantors with respect to the Loan is and
shall be contained within the Written Loan Agreement, as amended and supplemented hereby, and that no agreements or promises exist or shall exist by or among Borrower, Lender, and Guarantors that are not reflected in the Written Loan Agreement. 

 THE WRITTEN LOAN AGREEMENT REPRESENTS THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY
EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. 
 THERE ARE NO UNWRITTEN AGREEMENTS BETWEEN THE PARTIES. 

Effective as of the date stated above. 
 ACKNOWLEDGED AND
AGREED: 
 LONESTAR PROSPECTS HOLDING COMPANY, L.L.C. 

 

			
	By:	 	 /s/ Gary B. Humphreys

		 	Gary B. Humphreys, Manager
	
	LONESTAR PROSPECTS MANAGEMENT, L.L.C.,
	a Texas limited liability company
	By:	 	VPROP Operating, LLC,
		 	 a Delaware limited liability company,
 its sole
member

	By:	 	Vista Proppants and Logistics, LLC,
		 	 a Delaware limited liability company,
 its sole
member

  

					
		 	By:	 	 /s/ Gary B. Humphreys

		 		 	Gary B. Humphreys,
		 		 	Chief Executive Officer

  
 Ratification of
Unlimited Guaranties - Page 2 

	
	 /s/ Gary Blaine Humphreys

	Gary Blaine Humphreys, as co-trustee of the
	ERIC BLAINE HUMPHREYS TRUST created under
	Trust Agreement dated December 14, 2012
	
	 /s/ Claudia Ann Humphreys

	Claudia Ann Humphreys, as co-trustee of the
	ERIC BLAINE HUMPHREYS TRUST created under
	Trust Agreement dated December 14, 2012
	
	 /s/ Gary Blaine Humphreys

	Gary Blaine Humphreys, as co-trustee of the
	JAKE ALLEN HUMPHREYS TRUST created under
	Trust Agreement dated December 14, 2012
	
	 /s/ Claudia Ann Humphreys

	Claudia Ann Humphreys, as co-trustee of the
	JAKE ALLEN HUMPHREYS TRUST created under
	Trust Agreement dated December 14, 2012

  

			
	 FUTURE NEW DEAL, LTD.,

a Texas limited partnership

	By:	 	Future New Deal II, LLC,
		 	its general partner

			
		
	        By:	 	 /s/ Gary B. Humphreys

		 	Gary B. Humphreys, Manager

			
	
	FUTURE NEW DEAL II, LLC
		
	By:	 	 /s/ Gary B. Humphreys

		 	Gary B. Humphreys, Manager

  

  
 Ratification of
Unlimited Guaranties - Page 3 

	
	 /s/ Martin W. Robertson

	 Martin W. Robertson, as co-trustee of

the CHRISTOPHER MARTIN ROBERTSON TRUST

created under Trust Agreement dated December 18, 2012

	
	 /s/ Janet Lynn Robertson

	 Janet Lynn Robertson, as co-trustee of

the CHRISTOPHER MARTIN ROBERTSON TRUST

created under Trust Agreement dated December 18, 2012

	
	 /s/ Martin W. Robertson

	 Martin W. Robertson, as co-trustee of

the CLAIRE ANN ROBERTSON TRUST

created under Trust Agreement dated December 18, 2012

	
	 /s/ Janet Lynn Robertson

	 Janet Lynn Robertson, as co-trustee of

the CLAIRE ANN ROBERTSON TRUST

created under Trust Agreement dated December 18, 2012

 

			
	 M & J PARTNERSHIP, LTD.,

a Texas limited partnership

	 By: T.Y.F. Holdings, LLC,
 its
general partner

			
		
	        By:	 	 /s/ Martin W. Robertson

		 	Martin W. Robertson, Manager

			
	
	T.Y.F. HOLDINGS, LLC
		
	By:	 	 /s/ Martin W. Robertson

		 	Martin W. Robertson, Manager

  
 Ratification of
Unlimited Guaranties - Page 4EX-10.20.5

 Exhibit 10.20.5 
  

 
 801 Houston Street 
 Fort
Worth, Texas 76102 
 June 14, 2018 

LONESTAR PROSPECTS, LTD 

Attention: Gary B. Humphreys 
 4413 Carey Street 

Fort Worth, Texas 76119 
 Re: Second Amendment
to Amended and Restated to Loan Agreement 
 Ladies and Gentlemen: 

This letter (this “Amendment”) amends the Amended and Restated Loan Agreement dated January 12, 2018, among
LONESTAR PROSPECTS, LTD. (“Borrower”), a Texas limited partnership; LONESTAR PROSPECTS HOLDING COMPANY, L.L.C. (“Lonestar
Holding”), a Texas limited liability company, GARY B. HUMPHREYS (“Humphreys”) and MARTIN W. ROBERTSON (“Robertson” and collectively with Lonestar
Holding and Humphreys, collectively “Guarantors”); and PLAINSCAPITAL BANK (“Lender”), as amended by the First Amendment dated February 20, 2018, and as now or hereafter
amended, restated, replaced, supplemented, or otherwise modified from time to time (collectively the “Loan Agreement”). Capitalized terms below have the meanings assigned in the Loan Agreement. 

1. Revolving Loan. Borrower has requested that Lender increase and renew and extend the Revolving Loan, and Lender has agreed to do so
on the terms set forth in this Amendment. Subsection (a) of Section 1 of the Loan Agreement is amended and restated in its entirety to read as follows: 

“(a) Subject to the terms and conditions set forth in the Loan Agreement and the other agreements, instruments, and
documents executed and delivered in connection with the Loan Agreement (collectively the “Loan Documents”), Lender agrees to make a revolving loan in the maximum principal amount of $60,000,000.00 to Borrower (the “Revolving
Loan”) on the terms set forth in the Revolving Promissory Note attached as Exhibit A to this Amendment (the “Revolving Note”), for the purposes set forth in the Loan Agreement. Subject to the terms and conditions of
the Loan Agreement, Borrower may borrow, repay, and reborrow on a revolving basis from time to time during the period commencing on the date hereof and continuing through 11:00 a.m. (Fort Worth, Texas time) on June 14, 2020 (the
“Termination Date”), such amounts as Borrower may request under the Revolving Loan; provided, however, the total principal 

 LONESTAR PROSPECTS, LTD. 

June 14, 2018 
  Page
 2
 of 9 
  

 amount outstanding at any time shall not exceed the lesser of (i) the aggregate sums
permitted under the Borrowing Base, or (ii) $60,000,000.00. Advances on the Revolving Loan may be used only for working capital purposes. The unpaid principal balance of the Revolving Note shall bear interest from the date advanced until paid or
until Event of Default or the Termination Date at a fluctuating rate per annum equal to the sum of the Prime Rate (as defined in the Revolving Note), plus one-half percent (0.5%); provided, however, that the
interest rate under the Revolving Note shall never fall below a floor rate of five and one-quarter percent (5.25%) per annum. All sums advanced under the Revolving Loan, together with all accrued but unpaid
interest thereon, shall be due and payable in full on the Termination Date. Notwithstanding any provision of the Loan Agreement or the Revolving Note to the contrary, additional advances on the Revolving Loan will only be permitted to the extent
allowed by Section 9.03(f) of the Term Credit Agreement (as defined below).” 
 2. Borrowing Base. Subsection (ii) of
Section 3 of the Loan Agreement is hereby amended and restated in its entirety to read as follows: 
 “(ii)
Eligible Accounts” means at any time, an amount equal to the aggregate net invoice or ledger amount owing on all trade accounts receivable of Borrower for sand sold in the ordinary course of business, in which Lender has a perfected,
first-priority security interest, after deducting (without duplication): (1) each account that is unpaid one hundred twenty (120) days or more after the original invoice date; (2) the amount of all discounts, allowances, rebates, credits,
and adjustments to such accounts; (3) the amount of all contra accounts, setoffs, defenses, or counterclaims asserted by or available to the account debtors; (4) all accounts with respect to which goods are placed on consignment or subject
to a guaranteed sale or other terms under which payment by the account debtor may be conditional; (5) the amount billed for or representing retainage, if any, until all prerequisites to the immediate payment of retainage have been satisfied;
(6) all accounts owing by account debtors for which there has been instituted a proceeding under any Debtor Relief Laws; (7) all accounts owing by any officer, employee, agent, or affiliate of Borrower; (8) all accounts due Borrower
by any account debtor whose domicile, residence, or principal place of business is located outside the United States of America, excluding, however, multi-national companies with a United States headquartered affiliate; (9) accounts with
respect to which the account debtor is the United States or any department, agency, or instrumentality of the United States, any state of the United States, or any city, town, municipality, or division thereof, except to the extent an acknowledgment
of assignment to Lender of such account in compliance with the Federal Assignment of Claims Act and other applicable law has been received by Lender; (10) all accounts subject to any provision prohibiting assignment or requiring notice of or
consent to such assignment; (11) that portion of all account balances owing by any single account debtor which exceeds twenty-five percent (25%) of the aggregate of all accounts otherwise deemed eligible hereunder which are owing to Borrower by
all account debtors, unless Borrower provides evidence satisfactory to Lender of credit insurance coverage acceptable to Lender on the accounts receivable from any such account debtor, from a financially sound and reputable

 LONESTAR PROSPECTS, LTD. 

June 14, 2018 
  Page
 3
 of 9 
  

 
insurance company; provided, however, that (I) only that portion of all account balances owing by Halliburton Energy Services, Schlumberger Limited, or EOG Resources, Inc., which exceeds the
lesser of (A) forty percent (40%) of the aggregate of all accounts otherwise deemed eligible hereunder which are owing to Borrower by all account debtors, or (B) the applicable amount of credit insurance acceptable to Lender with respect
to such accounts, shall be excluded from Eligible Accounts; (II) only that portion of all account balances owing by Apache Corporation, which exceeds the lesser of (A) thirty percent (30%) of the aggregate of all accounts otherwise deemed
eligible hereunder which are owing to Borrower by all account debtors, or (B) the applicable amount of credit insurance acceptable to Lender with respect to such accounts, shall be excluded from Eligible Accounts; (12) all accounts due
from an account debtor when ten percent (10%) or more of the total amount due to Borrower from that debtor is ineligible under one or more of these subsections of this definition; and (13) any other accounts deemed unacceptable by Lender in its
reasonable discretion.” 
 3. Financial Covenants. The first sentence of Subsection (b) of Section 7 of the Loan
Agreement is hereby amended and restated in its entirety to read as follows: 
 “Borrower shall maintain at the end of
each fiscal quarter, commencing with the fiscal quarter ended June 30, 2017, a Leverage Ratio less than or equal to 3.50 to 1.00.” 

4. Reporting Requirements. (a) Subparagraph (1) of Subsection (a) of Section 8 of the Loan Agreement is hereby amended
and restated in its entirety to read as follows: 
 “(1) As soon as available, and in any event within one hundred
twenty (120) days of the end of each fiscal year, commencing with the fiscal year ending December 31, 2017, annual financial statements for Vista Proppants and Logistics, LLC (“Vista Proppants”), a Delaware limited
liability company, and its subsidiaries, including Borrower, on a consolidated and consolidating basis, consisting of at least a balance sheet, an income statement, a statement of cash flows, and a statement of changes in owners’ equity,
audited by an independent certified public accounting firm acceptable to Lender and certified by an authorized officer of Vista Proppants and Borrower (i) as being true and correct in all material aspects to the best of his knowledge,
(ii) as fairly reporting in all material respects the financial condition of Vista Proppants and its subsidiaries as of the close of the fiscal year and the results of their operations for the year, and (iii) as having been prepared in
accordance with Accounting Principles;” 
 (b) Subparagraph (2) of Subsection (a) of Section 8 of the Loan Agreement is
hereby amended and restated in its entirety to read as follows: 
 “(2) As soon as available, and in any event within
sixty (60) days of the end of each fiscal quarter, quarterly financial statements for Vista Proppants, and its subsidiaries, including Borrower, on a consolidated and consolidating basis, compiled by an independent certified public accounting
firm acceptable to Lender, consisting of at least a balance sheet, an income statement, a statement of cash flows, and a statement of 

 LONESTAR PROSPECTS, LTD. 

June 14, 2018 
  Page
 4
 of 9 
  

 
changes in owners’ equity, for the quarter and for the period from the beginning of the fiscal year to the close of the quarter, certified by an authorized officer of Vista Proppants and
Borrower (i) as being true and correct in all material aspects to the best of his knowledge, (ii) as fairly reporting in all material respects the financial condition of Vista Proppants, and its subsidiaries, as of the close of the fiscal
quarter and the results of its operations for the quarter, and (iii) as having been prepared in accordance with Accounting Principles, subject to normal year-end adjustments and the absence of
footnotes;” 
 (c) Subparagraph (3) of Subsection (a) of Section 8 of the Loan Agreement is hereby amended and restated
in its entirety to read as follows: 
 “(3) Within forty-five (45) days after the end of each month if there is any
outstanding balance on the Revolving Note, a Borrowing Base Certificate in the form of Exhibit C attached to this Amendment, signed by an authorized officer of Borrower, along with an accounts receivable listing and aging and an inventory
report;” 
 (d) Subparagraph (4) of Subsection (a) of Section 8 of the Loan Agreement is hereby amended and restated in
its entirety to read as follows: 
 “(4) With the annual and quarterly financial statements required above, a Compliance
Certificate in the form of Exhibit D attached to this Amendment, signed by an authorized officer of Borrower and certifying compliance with the financial covenants and other matters in the Loan Agreement;” 

(e) Subsection (b) of Section 8 of the Loan Agreement is hereby amended to add a new Subparagraph (5) that reads in its entirety
as follows: 
 “(5) As soon as available, and in any event within one hundred twenty (120) days of the end of each
fiscal year, commencing with the fiscal year ending December 31, 2018, annual financial statements for Future New Deal, Ltd., a Texas limited partnership, and M&J Partnership, Ltd., a Texas limited partnership, consisting of only a balance
sheet, and certified by an authorized officer (i) as being true and correct in all material aspects to the best of his knowledge, (ii) as fairly reporting in all material respects the financial condition of each partnership as of the close
of the fiscal year and the results of its operations for the year, and (iii) as having been prepared in accordance with Accounting Principles.” 

5. Consent to Term Loan Agreement Increase. Lender hereby consents to an increase in the amount of $75,000,000.00 to the loan under the
Term Loan Agreement that is guaranteed by Borrower. 
 6. Conditions Precedent. The obligation of Lender to enter into this Amendment,
to increase the Revolving Loan, and to renew and extend the Revolving Loan is subject to Borrower’s satisfaction, in Lender’s sole discretion, of the following conditions precedent: 

 LONESTAR PROSPECTS, LTD. 

June 14, 2018 
  Page
 5
 of 9 
  

 (a) Borrower shall be in compliance in all material respects with the conditions set forth in
Subparagraphs (3), (4), and (5) of Subsection (a) of Section 4 of the Loan Agreement as of the date of this Amendment, and all representations and warranties set forth in Section 5 of the Loan Agreement must be true in all
material respects as of the date of this Amendment (after giving effect to the waivers, consents, and amendments set forth herein). After giving effect to the waivers, consents, and amendments set forth in this Amendment, Borrower shall be in
compliance in all material respects with all existing obligations under the Loan Agreement and there shall be no Event of Default under the Loan Agreement at closing. 

(b) the negotiation, execution, and delivery of Loan Documents in Proper Form, including, but not limited to, the following: 

(i) this Amendment; 
 (ii) the
Revolving Note; 
 (iii) Ratifications of the existing Guaranties; and 

(iv) Borrowing Resolution. 
 (c)
a Material Adverse Change shall not have occurred. 
 (d) the negotiation, execution, and delivery of an amended and restated participation
agreement in Proper Form with 1ST SOURCE BANK for a participation in the Revolving Loan in an amount not less than $30,000,000.00. 

(e) Written Modification of Section 9.03(f) of Ares Term Credit Agreement to allow the Revolving Loan to be increased. 

7. Confirmations. (a) As security for the Notes, Borrower previously executed the Security Documents. Borrower ratifies and
confirms the Security Documents, acknowledges that they are valid, subsisting, and binding, and agrees that the Security Documents secure payment of the Notes (including the Revolving Note), the Loans (including the Revolving Loan), and all other
Secured Obligations. 
 (b) In connection with the Notes, Guarantors executed the Guaranties. Guarantors ratify and confirm the Guaranties,
acknowledge that the Guaranties are valid, subsisting, and binding upon Guarantors, and agree that the Guaranties guarantee payment of the Notes (including the Revolving Note), the Loans (including the Revolving Loan), and all other Secured
Obligations. 
 (c) Borrower hereby represents to Lender that all representations and warranties of Borrower set forth in Section 5 of
the Loan Agreement are true and correct in all material respects as of the date of execution of this Amendment (after giving effect to the waivers, consents, and amendments set forth herein); and that Borrower is in compliance in all material
respects as of the date of execution of this Amendment with all covenants set forth in Section 6 of the Loan Agreement, all financial covenants set forth in Section 7 of the Loan Agreement, and all reporting requirements set forth in
Section 8 of the Loan Agreement (after giving effect to the waivers, consents, and amendments set forth herein). 

 LONESTAR PROSPECTS, LTD. 

June 14, 2018 
  Page
 6
 of 9 
  

 8. Validity and Defaults. The Loan Agreement, as amended, remains in full force and
effect. Borrower and Guarantors acknowledge that the Loan Agreement, the Notes, the Security Documents, the Guaranties, and the other Loan Documents are valid, subsisting, and binding upon Borrower and Guarantors; no uncured breaches or defaults
exist under the Loan Agreement, as amended by this Amendment; and no event has occurred or circumstance exists which, with the passing of time or giving of notice, will constitute a default or breach under the Loan Agreement, as amended. Borrower
and Guarantors ratify the Loan Agreement, as amended. 
 9. Counterparts. This Amendment and the related Loan Documents may be
executed in counterparts, and Lender is authorized to attach the signature pages from the counterparts to copies for Lender and Borrower and filing counterparts. At Lender’s option, this Amendment and the related Loan Documents may also be
executed by Borrower and Guarantors in remote locations with signature pages faxed or scanned and e-mailed to Lender. Borrower and Guarantors agree that the faxed and scanned signatures are binding upon
Borrower and Guarantors, and Borrower and Guarantors further agree to promptly deliver the original signatures for this Amendment and the related Loan Documents by overnight mail or expedited delivery. It will be an Event of Default if Borrower or
Guarantors fail to promptly deliver all required original signatures. 
 10. Captions. Captions are for convenience only and should
not be used in interpreting this Amendment. 
 11. Final Agreement. (a) In connection with the Loans, Borrower, Guarantors, and
Lender have executed and delivered this Amendment, the Loan Agreement, and the Loan Documents (collectively the “Written Loan Agreement”). 

(b) It is the intention of Borrower, Guarantors, and Lender that this paragraph be incorporated by reference into each of the Loan Documents.
Borrower, Guarantors, and Lender each warrant and represent that their entire agreement with respect to the Loans is contained within the Written Loan Agreement, and that no agreements or promises have been made by, or exist by or among, Borrower,
Guarantors, and Lender that are not reflected in the Written Loan Agreement. 

 LONESTAR PROSPECTS, LTD. 

June 14, 2018 
  Page
 7
 of 9 
  

 (c) THE LOAN AGREEMENT, AS AMENDED, REPRESENTS THE FINAL AGREEMENT BETWEEN THE PARTIES AND
MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN AGREEMENTS BETWEEN THE PARTIES. 

If the foregoing correctly sets forth your understanding of our agreement, please sign and return one copy of this Amendment. 

 

			
	 Yours very truly,
  

	 PLAINSCAPITAL BANK

 

	By:	 	 /s/ Keeton Moore

		 	Keeton Moore,
		 	Senior Vice President

 LONESTAR PROSPECTS, LTD. 

June 14, 2018 
  Page
 8
 of 9 
  

			
	 Accepted and agreed to
 this 14 day
of June, 2018:
  

	 BORROWER:
  

	 LONESTAR PROSPECTS, LTD.,

a Texas limited partnership

	By:	 	Lonestar Prospects Management, L.L.C.,
		 	 a Texas limited liability company,
 its general
partner

	By:	 	VPROP Operating, LLC,
		 	 a Delaware limited liability company,
 its sole
member

	By:	 	Vista Proppants and Logistics, LLC,
		 	 a Delaware limited liability company,
 its sole
member

		 	By:     /s/ Gary B. Humphreys                        
		 	   Gary B. Humphreys,

		 	   Chief Executive Officer

 LONESTAR PROSPECTS, LTD. 

June 14, 2018 
  Page
 9
 of 9 
  

			
	 GUARANTORS:
  

	 LONESTAR PROSPECTS MANAGEMENT, L.L.C.,

a Texas limited liability company

	By:	 	VPROP Operating, LLC,
		 	 a Delaware limited liability company,
 its sole
member

	By:	 	Vista Proppants and Logistics, LLC,
		 	 a Delaware limited liability company,
 its sole
member
  

		 	By:    /s/ Gary B. Humphreys                    
		 	   Gary B. Humphreys,

		 	   Chief Executive Officer
  

	 /s/ Gary B. Humphreys

	 Gary B. Humphreys
  

	 /s/ Martin W. Robertson

	Martin W. Robertson

 Exhibits and Schedules: 

Exhibit A - Revolving Note 
 Exhibit
C - Borrowing Base Certificate 
 Exhibit D - Compliance Certificate

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