Document:

Tax Matters Agreement

 Exhibit 10.3 
 EXECUTION VERSION 
 TAX MATTERS AGREEMENT 

DATED AS OF APRIL 29, 2013 
 BY AND BETWEEN 
 VALERO ENERGY CORPORATION 

AND 

CST BRANDS, INC. 
  

 TABLE OF CONTENTS 

 

							
	Section 1.	    	 Definition of Terms
	  	 	1	  
			
	Section 2.	    	 Allocation of Tax Liabilities
	  	 	11	  
			
	 Section 2.01
	    	 General Rule
	  	 	11	  
			
	 Section 2.02
	    	 Allocation of United States Federal Income Tax and Federal Other Tax
	  	 	11	  
			
	 Section 2.03
	    	 Allocation of State Income and State Other Taxes
	  	 	11	  
			
	 Section 2.04
	    	 Allocation of Foreign Taxes
	  	 	12	  
			
	 Section 2.05
	    	 Certain Transaction and Other Taxes
	  	 	12	  
			
	Section 3.	    	 Proration of Taxes for Straddle Periods
	  	 	13	  
			
	Section 4.	    	 Preparation and Filing of Tax Returns
	  	 	13	  
			
	 Section 4.01
	    	 General
	  	 	13	  
			
	 Section 4.02
	    	 Valero’s Responsibility
	  	 	13	  
			
	 Section 4.03
	    	 Corner Store’s Responsibility
	  	 	14	  
			
	 Section 4.04
	    	 Tax Accounting Practices
	  	 	14	  
			
	 Section 4.05
	    	 Consolidated or Combined Tax Returns
	  	 	15	  
			
	 Section 4.06
	    	 Right to Review Tax Returns
	  	 	16	  
			
	 Section 4.07
	    	 Corner Store Carrybacks and Claims for Refund
	  	 	16	  
			
	 Section 4.08
	    	 Apportionment of Earnings and Profits and Tax Attributes
	  	 	17	  
			
	Section 5.	    	 Tax Payments
	  	 	17	  
			
	 Section 5.01
	    	 Payment of Taxes with Respect to Valero Federal Consolidated Income Tax Returns
	  	 	17	  
			
	 Section 5.02
	    	 Payment of Taxes With Respect to Joint Returns (other than a Valero Federal Consolidated Income Tax Return) and Certain
Returns of Other Taxes
	  	 	17	  
			
	 Section 5.03
	    	 Payment of Separate Company Taxes
	  	 	18	  
			
	 Section 5.04
	    	 Indemnification Payments
	  	 	18	  
			
	Section 6.	    	 Tax Benefits
	  	 	19	  
			
	 Section 6.01
	    	 Tax Benefits
	  	 	19	  
			
	 Section 6.02
	    	 Valero and Corner Store Income Tax Deductions in Respect of Certain Equity Awards and Incentive Compensation
	  	 	20	  
			
	Section 7.	    	 Tax-Free Status
	  	 	20	  
			
	 Section 7.01
	    	 Tax Opinions/Rulings and Representation Letters
	  	 	20	  
			
	 Section 7.02
	    	 Restrictions on Corner Store
	  	 	21	  

  
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	 Section 7.03
	    	 [RESERVED]
	  	 	23	  
			
	 Section 7.04
	    	 Procedures Regarding Opinions and Rulings
	  	 	23	  
			
	 Section 7.05
	    	 Liability for Tax-Related Losses
	  	 	24	  
			
	Section 8.	    	 Assistance and Cooperation
	  	 	27	  
			
	 Section 8.01
	    	 Assistance and Cooperation
	  	 	27	  
			
	 Section 8.02
	    	 Income Tax Return Information
	  	 	27	  
			
	 Section 8.03
	    	 Reliance by Valero
	  	 	28	  
			
	 Section 8.04
	    	 Reliance by Corner Store
	  	 	28	  
			
	Section 9.	    	 Tax Records
	  	 	28	  
			
	 Section 9.01
	    	 Retention of Tax Records
	  	 	28	  
			
	 Section 9.02
	    	 Access to Tax Records
	  	 	29	  
			
	Section 10.	    	 Tax Contests
	  	 	29	  
			
	 Section 10.01
	    	 Notice
	  	 	29	  
			
	 Section 10.02
	    	 Control of Tax Contests
	  	 	30	  
			
	Section 11.	    	 Effective Date; Termination of Prior Intercompany Tax Allocation Agreements
	  	 	32	  
			
	Section 12.	    	 Survival of Obligations
	  	 	32	  
			
	Section 13.	    	 Treatment of Payments; Tax Gross Up
	  	 	32	  
			
	 Section 13.01
	    	 Treatment of Tax Indemnity and Tax Benefit Payments
	  	 	32	  
			
	 Section 13.02
	    	 Tax Gross Up
	  	 	33	  
			
	 Section 13.03
	    	 Interest Under This Agreement
	  	 	33	  
			
	Section 14.	    	 Disagreements
	  	 	33	  
			
	Section 15.	    	 Late Payments
	  	 	34	  
			
	Section 16.	    	 Expenses
	  	 	34	  
			
	Section 17.	    	 General Provisions
	  	 	34	  
			
	 Section 17.01
	    	 Addresses and Notices
	  	 	34	  
			
	 Section 17.02
	    	 Binding Effect
	  	 	35	  
			
	 Section 17.03
	    	 Waiver
	  	 	35	  
			
	 Section 17.04
	    	 Severability
	  	 	35	  
			
	 Section 17.05
	    	 Authority
	  	 	35	  
			
	 Section 17.06
	    	 Further Action
	  	 	35	  
			
	 Section 17.07
	    	 Integration
	  	 	36	  
			
	 Section 17.08
	    	 Construction
	  	 	36	  
			
	 Section 17.09
	    	 No Double Recovery
	  	 	36	  
			
	 Section 17.10
	    	 Counterparts
	  	 	36	  

  
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	 Section 17.11
	    	 Governing Law
	  	 	36	  
			
	 Section 17.12
	    	 Jurisdiction
	  	 	36	  
			
	 Section 17.13
	    	 Amendment
	  	 	37	  
			
	 Section 17.14
	    	 Corner Store Subsidiaries
	  	 	37	  
			
	 Section 17.15
	    	 Successors
	  	 	37	  
			
	 Section 17.16
	    	 Injunctions
	  	 	37	  
			
	 Section 17.17
	    	 Additional Indemnification Matters
	  	 	37	  

  
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 EXECUTION VERSION 

TAX MATTERS AGREEMENT 
 This TAX MATTERS AGREEMENT (this “Agreement”) is entered into as of April 29, 2013, by and between Valero Energy Corporation, a Delaware corporation (“Valero”), and
CST Brands, Inc., a Delaware corporation and a wholly owned subsidiary of Valero (“Corner Store”) (Valero and Corner Store are sometimes collectively referred to herein as the “Companies” and, as the context
requires, individually referred to herein as the “Company”). 
 RECITALS 

WHEREAS, the Board of Directors of Valero has determined that it would be appropriate and desirable to completely separate the Corner
Store Business from Valero; 
 WHEREAS, as of the date hereof, Valero is the common parent of an affiliated group of
corporations, including Corner Store, which has elected to file consolidated Federal income tax returns; 
 WHEREAS, pursuant to
the Separation and Distribution Agreement, Valero and Corner Store have agreed to separate the Corner Store Business from Valero by means of, among other actions, (i) the Contribution and (ii) the Distribution; 

WHEREAS, as a result of the Distribution, Corner Store and its subsidiaries will cease to be members of the affiliated group (as that
term is defined in Section 1504 of the Code) of which Valero is the common parent (the “Deconsolidation”); 
 WHEREAS, the parties desire to provide for and agree upon the allocation between the parties of liabilities for Taxes arising prior to, as a result of, and subsequent to the Distribution, and to provide
for and agree upon other matters relating to Taxes; 
 NOW THEREFORE, in consideration of the mutual agreements contained
herein, the parties hereby agree as follows: 
 Section 1. Definition of Terms. For purposes of this Agreement
(including the recitals hereof), the following terms have the following meanings, and capitalized terms used but not otherwise defined herein shall have the meaning ascribed to them in the Separation and Distribution Agreement: 

“Accounting Cutoff Date” means, with respect to Corner Store, any date as of the end of which there is a closing of the
financial accounting records for such entity. 
 “Active Trade or Business” means the active conduct (as
defined in Section 355(b)(2) of the Code and the regulations thereunder) by (i) Corner Store and its “separate affiliated group” (as defined in Section 355(b)(3)(B) of the Code) of the Corner Store Business as conducted
immediately prior to the Distribution, (ii) Canadian Controlled and its “separate affiliated group” (as defined in Section 355(b)(3)(B) of the Code) of the Canadian Retail Business (as defined in the Ruling Request) as conducted
immediately prior to the Distribution, and (iii) Domestic Controlled and its “separate affiliated group” (as defined in Section 355(b)(3)(B) of the Code) of the Domestic Retail Business (as defined in the Ruling Request) as
conducted immediately prior to the Distribution. 

 “Adjustment Request” means any formal or informal claim or request filed
with any Tax Authority, or with any administrative agency or court, for the adjustment, refund, or credit of Taxes, including (a) any amended Tax return claiming adjustment to the Taxes as reported on the Tax Return or, if applicable, as
previously adjusted, (b) any claim for equitable recoupment or other offset, and (c) any claim for refund or credit of Taxes previously paid. 
 “Affiliate” means any entity that is directly or indirectly “controlled” by either the person in question or an Affiliate of such person. “Control” means the
possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a person, whether through ownership of voting securities, by contract or otherwise. The term Affiliate shall refer to Affiliates of a
person as determined immediately after the Distribution. 
 “Agreement” shall mean this Tax Matters Agreement.

 “Board Certificate” shall have the meaning set forth in Section 7.02(e) of this Agreement. 

“Business Day” means a day other than a Saturday, a Sunday or a day on which banking institutions located in New York,
New York are authorized or obligated by law or executive order to close. 
 “Code” means the U.S. Internal
Revenue Code of 1986, as amended. 
 “Companies” and “Company” shall have the meaning provided
in the first sentence of this Agreement. 
 “Contribution” has the meaning set forth in the Separation and
Distribution Agreement. 
 “Controlling Party” shall have the meaning set forth in Section 10.02(f) of
this Agreement. 
 “Corner Store” shall have the meaning provided in the first sentence of this Agreement.

 “Corner Store Adjustment” means any proposed adjustment by a Tax Authority or claim for refund asserted in a
Tax Contest to the extent Corner Store would be exclusively liable for any resulting Tax under this Agreement or exclusively entitled to receive any resulting Tax Benefit under this Agreement. 

“Corner Store Business” has the meaning set forth in the Separation and Distribution Agreement. 

“Corner Store Capital Stock” means all classes or series of capital stock of Corner Store, including (i) the Corner
Store Common Stock, (ii) all options, warrants and other rights to acquire such capital stock and (iii) all instruments properly treated as stock in Corner Store for U.S. federal income tax purposes. 

  
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 “Corner Store Carryback” means any net operating loss, net capital loss,
excess tax credit, or other similar Tax item of any member of the Corner Store Group which may or must be carried from one Tax Period to another prior Tax Period under the Code or other applicable Tax Law. 

“Corner Store Common Stock” has the meaning set forth in the Separation and Distribution Agreement. 

“Corner Store Federal Consolidated Income Tax Return” shall mean any United States federal Income Tax Return for the
affiliated group (as that term is defined in Section 1504 of the Code) of which Corner Store is the common parent. 

“Corner Store Group” means Corner Store and its Affiliates, as determined immediately after the Distribution.

 “Corner Store Separate Return” means any Separate Return of Corner Store or any member of the Corner Store
Group. 
 “Deconsolidation” shall have the meaning provided in the Recitals. 

“Deconsolidation Date” means the last date on which Corner Store qualifies as a member of the affiliated group (as
defined in Section 1504 of the Code) of which Valero is the common parent. 
 “DGCL” means the Delaware
General Corporation Law. 
 “Distribution” has the meaning set forth in the Separation and Distribution
Agreement. 
 “Distribution Date” has the meaning set forth in the Separation and Distribution Agreement.

 “Employee Matters Agreement” means the Employee Matters Agreement, dated as of April 29, 2013, by and
among Valero and Corner Store. 
 “Federal Income Tax” means any Tax imposed by Subtitle A of the Code, and any
interest, penalties, additions to tax, or additional amounts in respect of the foregoing. 
 “Federal Other
Tax” means any Tax imposed by the federal government of the United States of America other than any Federal Income Taxes, and any interest, penalties, additions to tax, or additional amounts in respect of the foregoing. 

“Fifty-Percent or Greater Interest” shall have the meaning ascribed to such term for purposes of Sections 355(d) and
(e) of the Code. 
 “Filing Date” shall have the meaning set forth in Section 7.05(d) of this
Agreement. 
 “Final Determination” means the final resolution of liability for any Income Tax or Other Tax,
which resolution may be for a specific issue or adjustment or for a taxable period, (a)

  
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by IRS Form 870 or 870-AD (or any successor forms thereto), on the date of acceptance by or on behalf of the taxpayer, or by a comparable form under the laws of a State, local, or foreign taxing
jurisdiction, except that a Form 870 or 870-AD or comparable form shall not constitute a Final Determination to the extent that it reserves (whether by its terms or by operation of law) the right of the taxpayer to file a claim for refund or the
right of the Tax Authority to assert a further deficiency in respect of such issue or adjustment or for such taxable period (as the case may be); (b) by a decision, judgment, decree, or other order by a court of competent jurisdiction, which
has become final and unappealable; (c) by a closing agreement or accepted offer in compromise under Sections 7121 or 7122 of the Code, or a comparable agreement under the laws of a State, local, or foreign taxing jurisdiction; (d) by any
allowance of a refund or credit in respect of an overpayment of Income Tax or Other Tax, but only after the expiration of all periods during which such refund may be recovered (including by way of offset) by the jurisdiction imposing such Income Tax
or Other Tax; (e) by a final settlement resulting from a treaty-based competent authority determination; or (f) by any other final disposition, including by reason of the expiration of the applicable statute of limitations or by mutual
agreement of the parties. 
 “Foreign Income Tax” means any Tax imposed by any foreign country or any
possession of the United States, or by any political subdivision of any foreign country or United States possession, which is an income tax as defined in Treasury Regulation Section 1.901-2, and any interest, penalties, additions to tax, or
additional amounts in respect of the foregoing. 
 “Foreign Other Tax” means any Tax imposed by any foreign
country or any possession of the United States, or by any political subdivision of any foreign country or United States possession, other than any Foreign Income Taxes, and any interest, penalties, additions to tax, or additional amounts in respect
of the foregoing. 
 “Foreign Tax” means any Foreign Income Taxes or Foreign Other Taxes. 

“Group” means the Valero Group or the Corner Store Group, or both, as the context requires. 

“High-Level Dispute” means any dispute or disagreement (a) relating to liability under Section 7.05 of this
Agreement or (b) in which the amount of liability in dispute exceeds $20 million. 
 “Income Tax” means
any Federal Income Tax, State Income Tax or Foreign Income Tax. 
 “Indemnitee” shall have the meaning set
forth in Section 13.03 of this Agreement. 
 “Indemnitor” shall have the meaning set forth in
Section 13.03 of this Agreement. 
 “IRS” means the United States Internal Revenue Service. 

“Joint Adjustment” means any proposed adjustment by a Tax Authority or claim for refund asserted in a Tax Contest which
is neither a Corner Store Adjustment nor a Valero Adjustment. 

  
 4 

 “Joint Return” shall mean any Return of a member of the Valero Group or the
Corner Store Group that is not a Separate Return. 
 “Non-Controlling Party” shall have the meaning set forth
in Section 10.02(f) of this Agreement. 
 “Notified Action” shall have the meaning set forth in
Section 7.04(a) of this Agreement. 
 “Other Tax” means any Federal Other Tax, State Other Tax, or Foreign
Other Tax. 
 “Past Practices” shall have the meaning set forth in Section 4.04(a) of this Agreement.

 “Payment Date” means (i) with respect to any Valero Federal Consolidated Income Tax Return, the due
date for any required installment of estimated taxes determined under Section 6655 of the Code, the due date (determined without regard to extensions) for filing the return determined under Section 6072 of the Code, and the date the return
is filed, and (ii) with respect to any other Tax Return, the corresponding dates determined under the applicable Tax Law. 

“Payor” shall have the meaning set forth in Section 5.04(a) of this Agreement. 

“Person” means an individual, a partnership, a corporation, a limited liability company, an association, a joint stock
company, a trust, a joint venture, an unincorporated organization or a governmental entity or any department, agency or political subdivision thereof, without regard to whether any entity is treated as disregarded for U.S. federal income tax
purposes. 
 “Post-Deconsolidation Period” means any Tax Period beginning after the Deconsolidation Date, and,
in the case of any Straddle Period, the portion of such Straddle Period beginning the day after the Deconsolidation Date. 

“Pre-Deconsolidation Period” means any Tax Period ending on or before the Deconsolidation Date, and, in the case of any
Straddle Period, the portion of such Straddle Period ending on the Deconsolidation Date. 
 “Prime Rate” has
the meaning set forth in the Separation and Distribution Agreement. 
 “Privilege” means any privilege that may
be asserted under applicable law, including, any privilege arising under or relating to the attorney-client relationship (including the attorney-client and work product privileges), the accountant-client privilege and any privilege relating to
internal evaluation processes. 
 “Proposed Acquisition Transaction” means a transaction or series of
transactions (or any agreement, understanding or arrangement, within the meaning of Section 355(e) of the Code and Treasury Regulation Section 1.355-7, or any other regulations promulgated thereunder, to enter into a transaction or series
of transactions), whether such transaction is supported by Corner Store management or shareholders, is a hostile acquisition, or otherwise, as a result of which Corner Store would merge or consolidate with any other Person or as a result of which
any Person or any group of Persons would (directly or indirectly) acquire, or have the right to acquire, from Corner Store and/or one or more holders of outstanding shares of Corner Store 

  
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Capital Stock, a number of shares of Corner Store Capital Stock that would, when combined with any other changes in ownership of Corner Store Capital Stock pertinent for purposes of
Section 355(e) of the Code, comprise 40% or more of 
 (A) the value of all outstanding shares of stock of Corner Store as
of the date of such transaction, or in the case of a series of transactions, the date of the last transaction of such series, or 

(B) the total combined voting power of all outstanding shares of voting stock of Corner Store as of the date of such transaction, or in
the case of a series of transactions, the date of the last transaction of such series. 
 Notwithstanding the foregoing, a Proposed Acquisition
Transaction shall not include 
 (A) the adoption by Corner Store of a shareholder rights plan or 

(B) issuances by Corner Store that satisfy Safe Harbor VIII (relating to acquisitions in connection with a person’s performance of
services) or Safe Harbor IX (relating to acquisitions by a retirement plan of an employer) of Treasury Regulation Section 1.355-7(d). 

For purposes of determining whether a transaction constitutes an indirect acquisition, any recapitalization resulting in a shift of voting power or any
redemption of shares of stock shall be treated as an indirect acquisition of shares of stock by the non-exchanging shareholders. This definition and the application thereof is intended to monitor compliance with Section 355(e) of the Code and
shall be interpreted accordingly. Any clarification of, or change in, the statute or regulations promulgated under Section 355(e) of the Code shall be incorporated in this definition and its interpretation. 

“Representation Letters” means the representation letters and any other materials (including, without limitation, a
Ruling Request and any related supplemental submissions to the IRS) delivered or deliverable by Valero and others in connection with the rendering by Tax Advisors, and/or the issuance by the IRS, of the Tax Opinions/Rulings. 

“Required Party” shall have the meaning set forth in Section 5.04(a) of this Agreement. 

“Responsible Company” means, with respect to any Tax Return, the Company having responsibility for preparing and filing
such Tax Return under this Agreement. 
 “Retention Date” shall have the meaning set forth in Section 9.01
of this Agreement. 
 “Ruling” means a private letter ruling (including a supplemental private letter ruling)
issued by the IRS to Valero in connection with the Transactions. 
 “Ruling Request” means the letter filed by
Valero with the IRS on October 18, 2012 requesting a ruling regarding certain tax consequences of the Transactions (including all attachments, exhibits, and other materials submitted with such ruling request letter) and any amendment or
supplement to such ruling request letter. 

  
 6 

 “Senior Executives” shall have the meaning set forth in Section 14.

 “Separate Return” means (a) in the case of any Tax Return of any member of the Corner Store Group
(including any consolidated, combined or unitary return), any such Tax Return that does not include any member of the Valero Group and (b) in the case of any Tax Return of any member of the Valero Group (including any consolidated, combined or
unitary return), any such Tax Return that does not include any member of the Corner Store Group. 
 “Separation and
Distribution Agreement” means the Separation and Distribution Agreement, as amended from time to time, by and between Valero and Corner Store dated as of April 29, 2013. 

“Specified Acquisition Transaction” means any transaction or series of transactions that is not a Proposed Acquisition
Transaction but would be a Proposed Acquisition Transaction if the percentage reflected in the definition of Proposed Acquisition Transaction were 25% instead of 40%. 
 “Specified Tax Contest” means the matters set forth on Schedule 10.02(i). 
 “Specified Valuation” means any valuation or appraisal relied upon by Valero, as more fully described on Schedule 4.04(a) and, upon Corner Store’s request, provided to Corner Store
within 30 days of the later of the date of such request and the receipt by Valero of the final valuation or appraisal. 

“State Income Tax” means any Tax imposed by any State of the United States or by any political subdivision of any such
State which is imposed on or measured by net income, including state and local franchise or similar Taxes measured by net income, and any interest, penalties, additions to tax, or additional amounts in respect of the foregoing. 

“State Other Tax” means any Tax imposed by any State of the United States or by any political subdivision of any such
State other than any State Income Taxes, and any interest, penalties, additions to tax, or additional amounts in respect of the foregoing. 
 “State Tax” means any State Income Taxes or State Other Taxes. 

“Straddle Period” means any Tax Period that begins on or before and ends after the Deconsolidation Date. 

“Tax” or “Taxes” means any income, gross income, gross receipts, profits, capital stock, franchise,
withholding, payroll, social security, workers compensation, unemployment, disability, property, ad valorem, stamp, excise, severance, occupation, service, sales, use, license, lease, transfer, import, export, value added, alternative
minimum, estimated or other tax (including any fee, assessment, or other charge in the nature of or in lieu of any tax but excluding, for the avoidance of doubt, any assessment under applicable escheat, abandoned property or unclaimed property laws)
imposed by any governmental entity or political subdivision thereof, and any interest, penalties, additions to tax, or additional amounts in respect of the foregoing. 

  
 7 

 “Tax Advisor” means a United States tax counsel or accountant of recognized
national standing. 
 “Tax Advisor Dispute” shall have the meaning set forth in Section 14 of this
Agreement. 
 “Tax Attribute” or “Attribute” shall mean a net operating loss, net capital
loss, unused investment credit, unused foreign tax credit, excess charitable contribution, general business credit or any other Tax Item that could reduce a Tax. 
 “Tax Authority” means, with respect to any Tax, the governmental entity or political subdivision thereof that imposes such Tax, and the agency (if any) charged with the collection of such
Tax for such entity or subdivision. 
 “Tax Benefit” means any refund, credit, or other reduction in otherwise
required Tax payments. 
 “Tax Contest” means an audit, review, examination, or any other administrative or
judicial proceeding with the purpose or effect of redetermining Taxes (including any administrative or judicial review of any claim for refund). 
 “Tax Contest Committee” shall have the meaning provided in Section 10.02(e) of this Agreement. 
 “Tax Control” means the definition of “control” set forth in Section 368(c) of the Code (or in any successor statute or provision), as such definition may be amended from
time to time. 
 “Tax-Free Status” means (A) the qualification of the Contribution and Distribution, taken
together, (a) as a reorganization described in Sections 355(a) and 368(a)(1)(D) of the Code, (b) as a transaction in which the stock distributed thereby is “qualified property” for purposes of Sections 355(d), 355(e) and 361(c)
of the Code and (c) as a transaction in which Valero, Corner Store and the shareholders of Valero recognize no income or gain for U.S. federal income tax purposes pursuant to Sections 355, 361 and 1032 of the Code, other than, in the case of
Valero and Corner Store, intercompany items or excess loss accounts taken into account pursuant to the Treasury Regulations promulgated pursuant to Section 1502 of the Code, (B) the qualification of the Canadian Contribution and the First
Internal Distribution (a) as a reorganization described in Sections 355(a) and 368(a)(1)(D) of the Code, (b) as a transaction in which the stock distributed thereby is “qualified property” for purposes of Sections 355(d), 355(e)
and 361(c) of the Code, and (c) as a transaction in which Distributing 1, Canadian Controlled and Distributing 2 recognize no income or gain for U.S. federal income tax purposes pursuant to Sections 355, 361 and 1032 of the Code, and
(d) as a transaction to which Treasury Regulations Sections 1.367(b)-1(c), 1.367(b)-5(a), 1.367(b)-5(c) and 1.367(b)-5(f) apply, (C) the qualification of the Second Internal Distribution (a) as a transaction to which
Section 355(a) applies, (b) as a transaction in which the stock distributed thereby is “qualified property” for purposes of Section 355(c), 355(d) and 355(e) of the Code, and (c) as a transaction in which Distributing 2
and Distributing 4 recognize no income or gain for U.S. federal income tax purposes pursuant to Section 355, (D) the qualification of the Domestic Contribution and the Third Internal Distribution (a) as a reorganization described in
Sections 355(a) and 368(a)(1)(D) of the Code, (b) as a transaction in 

  
 8 

 
which the stock distributed thereby is “qualified property” for purposes of Sections 355(d), 355(e) and 361(c) of the Code and (c) as a transaction in which Distributing 3,
Domestic Controlled and Distributing 4 recognize no income or gain for U.S. federal income tax purposes pursuant to Sections 355, 361 and 1032 of the Code, and (E) the qualification of any other transaction described in the Ruling consistent
with the treatment set forth therein. For purposes of this definition of “Tax-Free Status” and the definition of “Active Trade or Business”, the terms Canadian Contribution, First Internal Distribution, Distributing 1, Canadian
Controlled, Distributing 2, Second Internal Distribution, Domestic Contribution, Third Internal Distribution, Distributing 3, Domestic Controlled, and Distributing 4 shall have the meaning ascribed to them in the Ruling Request. 

“Tax Item” means, with respect to any Income Tax, any item of income, gain, loss, deduction, or credit. 

“Tax Law” means the law of any governmental entity or political subdivision thereof relating to any Tax. 

“Tax Opinions/Rulings” means the opinions of Tax Advisors and/or the rulings by the IRS deliverable to Valero in
connection with the Contribution and the Distribution. 
 “Tax Period” means, with respect to any Tax, the
period for which the Tax is reported as provided under the Code or other applicable Tax Law. 
 “Tax Records”
means any Tax Returns, Tax Return workpapers, documentation relating to any Tax Contests, and any other books of account or records (whether or not in written, electronic or other tangible or intangible forms and whether or not stored on electronic
or any other medium) required to be maintained under the Code or other applicable Tax Laws or under any record retention agreement with any Tax Authority. 
 “Tax-Related Losses” means (i) all federal, state and local Taxes (including interest and penalties thereon) imposed pursuant to any settlement, Final Determination, judgment or
otherwise; (ii) all accounting, legal and other professional fees, and court costs incurred in connection with such Taxes; and (iii) all costs, expenses and damages associated with stockholder litigation or controversies and any amount
paid by Valero (or any Valero Affiliate) or Corner Store (or any Corner Store Affiliate) in respect of the liability of shareholders, whether paid to shareholders or to the IRS or any other Tax Authority, in each case, to the extent resulting from
the failure of the Contribution and the Distribution to have Tax-Free Status. 
 “Tax Return” or
“Return” means any report of Taxes due, any claim for refund of Taxes paid, any information return with respect to Taxes, or any other similar report, statement, declaration, or document required to be filed under the Code or other
Tax Law, including any attachments, exhibits, or other materials submitted with any of the foregoing, and including any amendments or supplements to any of the foregoing. 
 “Transactions” means the Contribution, the Distribution and the other transactions contemplated by the Separation and Distribution Agreement. 

  
 9 

 “Transfer Pricing Adjustment” shall mean any proposed or actual allocation
by a Tax Authority of any Tax Item between or among any member of the Valero Group and any member of the Corner Store Group with respect to any Pre-Deconsolidation Period. 
 “Treasury Regulations” means the regulations promulgated from time to time under the Code as in effect for the relevant Tax Period. 

“Unqualified Tax Opinion” means an unqualified “will” opinion of a Tax Advisor, which Tax Advisor is
acceptable to Valero, on which Valero may rely to the effect that a transaction will not affect the Tax-Free Status. Any such opinion must assume that the Contribution and Distribution would have qualified for Tax-Free Status if the transaction in
question did not occur. 
 “Valero” shall have the meaning provided in the first sentence of this Agreement.

 “Valero Adjustment” means any proposed adjustment by a Tax Authority or claim for refund asserted in a Tax
Contest to the extent Valero would be exclusively liable for any resulting Tax under this Agreement or exclusively entitled to receive any resulting Tax Benefit under this Agreement. 

“Valero Affiliated Group” shall have the meaning provided in the definition of “Valero Federal Consolidated Income
Tax Return.” 
 “Valero Business” shall have the meaning provided in the Separation and Distribution
Agreement. 
 “Valero Federal Consolidated Income Tax Return” means any United States federal Income Tax Return
for the affiliated group (as that term is defined in Section 1504 of the Code and the regulations thereunder) of which Valero is the common parent (the “Valero Affiliated Group”). 

“Valero Foreign Combined Income Tax Return” means a consolidated, combined or unitary or other similar Foreign Income
Tax Return or any Foreign Income Tax Return with respect to any profit and/or loss sharing group, group payment or similar group or fiscal unity that actually includes, by election or otherwise, one or more members of the Valero Group together with
one or more members of the Corner Store Group. 
 “Valero Group” means Valero and its Affiliates, excluding any
entity that is a member of the Corner Store Group. 
 “Valero Group Transaction Returns” shall have the meaning
set forth in Section 4.04(b) of this Agreement. 
 “Valero Separate Return” means any Separate Return of
Valero or any member of the Valero Group. 

  
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 “Valero State Combined Income Tax Return” means a consolidated, combined or
unitary State Income Tax Return that actually includes, by election or otherwise, one or more members of the Valero Group together with one or more members of the Corner Store Group. 

Section 2. Allocation of Tax Liabilities. 
 Section 2.01 General Rule. 
 (a) Valero Liability. Valero shall
be liable for, and shall indemnify and hold harmless the Corner Store Group from and against any liability for, Taxes which are allocated to Valero under this Section 2. 
 (b) Corner Store Liability. Corner Store shall be liable for, and shall indemnify and hold harmless the Valero Group from and against any liability for, Taxes which are allocated to Corner Store
under this Section 2. 
 Section 2.02 Allocation of United States Federal Income Tax and Federal Other Tax.
Except as provided in Section 2.05, Federal Income Tax and Federal Other Tax shall be allocated as follows: 

(a) Allocation of Tax Relating to Valero Federal Consolidated Income Tax Returns. With respect to any Valero
Federal Consolidated Income Tax Return, Valero shall be responsible for any and all Federal Income Taxes due or required to be reported on any such Income Tax Return (including any increase in such Tax as a result of a Final Determination).

 (b) Allocation of Tax Relating to Federal Separate Income Tax Returns. (i) Valero shall be
responsible for any and all Federal Income Taxes due with respect to or required to be reported on any Valero Separate Return (including any increase in such Tax as a result of a Final Determination); (ii) Corner Store shall be responsible for
any and all Federal Income Taxes due with respect to or required to be reported on any Corner Store Separate Return (including any increase in such Tax as a result of a Final Determination). 

(c) Allocation of Federal Other Tax. Valero shall be responsible for any and all Federal Other Taxes attributable
to the Valero Business. Corner Store shall be responsible for any and all Federal Other Taxes attributable to the Corner Store Business. 
 Section 2.03 Allocation of State Income and State Other Taxes. Except as provided in Section 2.05, State Income Tax and State Other Tax shall be allocated as follows: 

(a) Allocation of Tax Relating to Valero State Combined Income Tax Returns. Valero shall be responsible for any and
all State Income Taxes due with respect to or required to be reported on any Valero State Combined Income Tax Return and any Split Valero State Combined Income Tax Return (including any increase in such Tax as a result of a Final Determination).

  
 11 

 (b) Allocation of Tax Relating to Separate Returns. (i) Valero
shall be responsible for any and all State Income Taxes due with respect to or required to be reported on any Valero Separate Return (including any increase in such Tax as a result of a Final Determination); (ii) Corner Store shall be
responsible for any and all State Income Taxes due with respect to or required to be reported on any Corner Store Separate Return (including any increase in such Tax as a result of a Final Determination). 

(c) Allocation of State Other Tax. Valero shall be responsible for any and all State Other Taxes attributable to
the Valero Business. Corner Store shall be responsible for any and all State Other Taxes attributable to the Corner Store Business. 
 Section 2.04 Allocation of Foreign Taxes. Except as provided in Sections 2.05, Foreign Income Tax and Foreign Other Tax shall be allocated as follows: 

(a) Allocation of Tax Relating to Valero Foreign Combined Income Tax Returns. Valero shall be responsible for any
and all Foreign Income Taxes due with respect to or required to be reported on any Valero Foreign Combined Income Tax Return (including any increase in such Tax as a result of a Final Determination). 

(b) Allocation of Tax Relating to Separate Returns. (i) Valero shall be responsible for any and all Foreign
Income Taxes due with respect to or required to be reported on any Valero Separate Return, including Foreign Income Tax of Valero or any member of the Valero Group imposed by way of withholding by a member of the Corner Store Group (and including
any increase in such Foreign Income Tax as a result of a Final Determination); (ii) Corner Store shall be responsible for any and all Foreign Income Taxes due with respect to or required to be reported on any Corner Store Separate Return,
including Foreign Income Tax of Corner Store or any member of the Corner Store Group imposed by way of withholding by a member of the Valero Group (and including any increase in such Foreign Income Tax as a result of a Final Determination).

 (c) Allocation of Foreign Other Tax. Valero shall be responsible for any and all Foreign Other Taxes
attributable to the Valero Business. Corner Store shall be responsible for any and all Foreign Other Taxes attributable to the Corner Store Business. 
 Section 2.05 Certain Transaction and Other Taxes. 
 (a) Corner
Store Liability. Corner Store shall be liable for, and shall indemnify and hold harmless the Valero Group from and against any liability for: 
 (i) any Tax resulting from a breach by Corner Store of any covenant in this Agreement, the Separation and Distribution Agreement or any Ancillary Agreement; and 

(ii) any Tax-Related Losses for which Corner Store is responsible pursuant to Section 7.05 of this Agreement.

 (b) Valero Liability. Valero shall be liable for, and shall indemnify and hold harmless the Corner Store Group from
and against any liability for: 
 (i) Any stamp, sales and use, gross receipts, value-added or other transfer
Taxes imposed by any Tax Authority on any member of the Valero Group or any member of the Corner Store Group (if such member is primarily liable for such Tax) on the transfers made pursuant to the Separation and Distribution Agreement or any
Ancillary Agreements in order to effect the Separation and the Distribution; 

  
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 (ii) any Tax resulting from a breach by Valero of any covenant in this
Agreement, the Separation and Distribution Agreement or any Ancillary Agreement; and 
 (iii) any Tax-Related
Losses for which Valero is responsible pursuant to Section 7.05 of this Agreement. 
 Section 3. Proration of Taxes
for Straddle Periods. 
 (a) General Method of Proration. In the case of any Straddle Period, Tax Items shall be
apportioned between Pre-Deconsolidation Periods and Post-Deconsolidation Periods in accordance with the principles of Treasury Regulation Section 1.1502-76(b) as reasonably interpreted and applied by the Companies. No election shall be made
under Treasury Regulation Section 1.1502-76(b)(2)(ii) (relating to ratable allocation of a year’s items). If the Deconsolidation Date is not an Accounting Cutoff Date, the provisions of Treasury Regulation Section 1.1502-76(b)(2)(iii)
will be applied to ratably allocate the items (other than extraordinary items) for the month which includes the Deconsolidation Date. 
 (b) Transaction Treated as Extraordinary Item. In determining the apportionment of Tax Items between Pre-Deconsolidation Periods and Post-Deconsolidation Periods, any Tax Items relating to the
Transactions shall be treated as extraordinary items described in Treasury Regulation Section 1.1502-76(b)(2)(ii)(C) and shall (to the extent occurring on or prior to the Deconsolidation Date) be allocated to Pre-Deconsolidation Periods, and
any Taxes related to such items shall be treated under Treasury Regulation Section 1.1502-76(b)(2)(iv) as relating to such extraordinary item and shall (to the extent occurring on or prior to the Deconsolidation Date) be allocated to
Pre-Deconsolidation Periods. 
 Section 4. Preparation and Filing of Tax Returns. 

Section 4.01 General. Except as otherwise provided in this Section 4, Tax Returns shall be prepared and filed when due
(including extensions) by the person obligated to file such Tax Returns under the Code or applicable Tax Law. The Companies shall provide, and shall cause their Affiliates to provide, assistance and cooperation to one another in accordance with
Section 8 with respect to the preparation and filing of Tax Returns, including providing information required to be provided in Section 8. 
 Section 4.02 Valero’s Responsibility. Valero has the exclusive obligation and right to prepare and file, or to cause to be prepared and filed: 

(a) Valero Federal Consolidated Income Tax Returns for any Tax Periods ending on, before or after the
Deconsolidation Date; 

  
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 (b) Valero State Combined Income Tax Returns, Valero Foreign Combined
Income Tax Returns and any other Joint Returns which Valero reasonably determines are required to be filed (or which Valero chooses to be filed) by the Companies or any of their Affiliates for Tax Periods ending on, before or after the
Deconsolidation Date; provided, however, that Valero shall provide written notice of such determination to file such Valero State Combined Income Tax Returns, Valero Foreign Combined Income Tax Returns or other Joint Returns to Corner Store
within 10 business days of such determination; and 
 (c) Valero Separate Returns and Corner Store
Separate Returns which Valero reasonably determines are required to be filed by the Companies or any of their Affiliates for Tax Periods ending on, before or after the Deconsolidation Date (limited, in the case of Corner Store Separate Returns, to
such Returns as are required to be filed for Tax Periods ending on or prior to the Deconsolidation Date). 

(d) Split Valero State Combined Income Tax Returns required to be filed for Tax Periods ending on or prior to the
Deconsolidation Date. 
 Section 4.03 Corner Store’s Responsibility. Corner Store shall prepare and file, or
shall cause to be prepared and filed, all Tax Returns required to be filed by or with respect to members of the Corner Store Group other than those Tax Returns which Valero is required to prepare and file under Section 4.02. The Tax Returns
required to be prepared and filed by Corner Store under this Section 4.03 shall include (a) any Corner Store Federal Consolidated Income Tax Return for Tax Periods ending after the Deconsolidation Date and (b) Corner Store Separate
Returns required to be filed for Tax Periods ending after the Deconsolidation Date. 
 Section 4.04 Tax Accounting
Practices. 
 (a) General Rule. Except as provided in Section 4.04(b), any Tax Return that Corner Store has the
obligation and right to prepare and file, or cause to be prepared and filed, under Section 4.03, for any Pre-Deconsolidation Period or any Straddle Period (or any taxable period beginning after the Deconsolidation Date to the extent items
reported on such Tax Return might reasonably be expected to affect items reported on any Tax Return for any Pre-Deconsolidation Period or any Straddle Period) shall be prepared in accordance with past practices, accounting methods, elections or
conventions (“Past Practices”) used with respect to the Tax Returns in question (unless there is no reasonable basis, as jointly determined by the parties, for the use of such Past Practices or unless there is no adverse effect to
Valero), and to the extent any items are not covered by Past Practices (or in the event that there is no reasonable basis, as jointly determined by the parties, for the use of such Past Practices or there is no adverse effect to Valero), in
accordance with reasonable Tax accounting practices selected by Corner Store. Except as provided in Section 4.04(b), Valero shall prepare any Tax Return which it has the obligation and right to prepare and file, or cause to be prepared and
filed, under Section 4.02, in accordance with Past Practice (unless there is no reasonable basis, as jointly determined by the parties, for the use of such Past Practice or unless there is no adverse effect to Corner Store), and to the extent
any items are not covered by Past Practices (or in the event that there is no reasonable basis, as jointly determined by the parties, for the use of such Past Practices or there is no adverse effect to Corner Store), in accordance with reasonable
Tax accounting practices 

  
 14 

 
selected by Valero. Notwithstanding the foregoing, Corner Store shall prepare all Tax Returns of the Corner Store Group for any period in a manner consistent with the Specified Valuation and
shall not take any position in any Tax Return, Tax Contest or otherwise for tax purposes that is inconsistent with the Specified Valuation, unless there is no reasonable basis, as jointly determined by the parties, for preparing such Tax Returns or
taking such positions in a manner consistent with the Specified Valuation. 
 (b) Reporting of
Transactions. The Tax treatment of the Transactions reported on any Tax Return shall be consistent with the treatment thereof in the Ruling Requests and the Tax Opinions/Rulings. The Tax treatment reported on any Tax Return for which Corner
Store is the Responsible Party shall be consistent with that on any Tax Return filed or to be filed by Valero or any member of the Valero Group or caused or to be caused to be filed by Valero, in each case with respect to periods prior to the
Distribution Date or with respect to Straddle Periods (“Valero Group Transaction Returns”), to the extent Valero notifies Corner Store in writing of such Tax treatment. To the extent there is a Tax treatment relating to the
Transactions which is not covered by the Ruling Requests, the Tax Opinions/Rulings or Valero Group Transaction Returns, the Tax treatment to be reported on any Tax Return shall be determined by Valero and the Responsible Company shall not take any
position on any Tax Return that is inconsistent with such determination, provided that if (i) there is no reasonable basis, in the opinion of a Tax advisor from a nationally recognized legal, accounting or professional tax services firm, for
the Tax treatment determined by Valero, or (ii) such Tax treatment is inconsistent with the Tax treatment contemplated in the Ruling Requests, the Tax Opinions/Rulings and/or the Valero Group Transaction Returns, then such Tax Return shall be
submitted for review pursuant to Section 4.06(a), and any dispute regarding such proper Tax treatment shall be referred for resolution pursuant to Section 14, sufficiently in advance of the filing date of such Tax Return (including
extensions) to permit timely filing of the Tax Return. 
 Section 4.05 Consolidated or Combined Tax Returns.

 (a) Corner Store will elect and join, and will cause its respective Affiliates to elect and join, in filing any Valero
State Combined Income Tax Returns, Valero Foreign Combined Income Tax Returns, Split Valero State Combined Income Tax Returns and any Joint Returns that Valero determines are required to be filed or that Valero chooses to file pursuant to Sections
4.02(b) and 4.05(b). With respect to any Corner Store Separate Returns relating to any Tax Period (or portion thereof) ending on or prior to the Distribution Date, Corner Store will elect and join, and will cause its respective Affiliates to elect
and join, in filing consolidated, unitary, combined, or other similar joint Tax Returns, to the extent each entity is eligible to join in such Tax Returns, if Valero reasonably determines that the filing of such Tax Returns is consistent with past
reporting practices, or, in the absence of applicable past practices, will result in the minimization of the net present value of the aggregate Tax to the entities eligible to join in such Tax Returns. 

(b) At Valero’s discretion, Valero may amend any Valero State Combined Income Tax Return or propose in respect of an audit of
any Valero State Combined Income Tax Return, or use any other means available, including filing additional Corner Store Separate Returns, in order to separate such Valero State Combined Income Tax Return into one or more consolidated, unitary or
combined state income Tax Returns (each a “Split Valero State Combined Income Tax 

  
 15 

 
Return”). Corner Store shall cooperate with Valero in the filing of any additional Corner Store Separate Returns, including by providing any necessary powers of attorney, signing Tax
Returns, amending any Tax Returns that Corner Store has the obligation and right to prepare and file pursuant to Section 4.03 and complying with its obligations under Section 8 hereof. 

Section 4.06 Right to Review Tax Returns. 
 (a) General. The Responsible Company with respect to any material Tax Return shall make such Tax Return and related workpapers available for review by the other Company, if requested, to the extent
(i) such Tax Return relates to Taxes for which the requesting party would reasonably be expected to be liable, (ii) such Tax Return relates to Taxes and the requesting party would reasonably be expected to be liable in whole or in part for
any additional Taxes owing as a result of adjustments to the amount of such Taxes reported on such Tax Return, (iii) such Tax Return relates to Taxes for which the requesting party would reasonably be expected to have a claim for Tax Benefits
under this Agreement, or (iv) the requesting party reasonably determines that it must inspect such Tax Return to confirm compliance with the terms of this Agreement. The Responsible Company shall use its reasonable best efforts to make such Tax
Return available for review as required under this paragraph sufficiently in advance of the due date for filing of such Tax Return to provide the requesting party with a meaningful opportunity to analyze and comment on such Tax Return and shall use
its reasonable best efforts to have such Tax Return modified before filing, taking into account the person responsible for payment of the Tax (if any) reported on such Tax Return and whether the amount of Tax liability with respect to such Tax
Return is material. The Companies shall attempt in good faith to resolve any issues arising out of the review of such Tax Return. For purposes of this Section 4.06(a), a Tax Return is “material” if it could reasonably be expected to
reflect (A) Tax liability equal to or in excess of $1 million, (B) a credit or credits equal to or in excess of $1 million or (C) a loss or losses equal to or in excess of $3 million. Notwithstanding anything to the contrary in this
Agreement, Valero shall not be required to provide Corner Store with any Valero Federal Consolidated Income Tax Returns, Valero State Combined Income Tax Returns, Valero Foreign Combined Income Tax Returns or Valero Separate Returns, or any
workpapers related to such Tax Returns. 
 (b) Execution of Returns Prepared by Other Party. In the case of any Tax
Return which is required to be prepared and filed by one Company under this Agreement and which is required by law to be signed by the other Company (or by its authorized representative), the Company which is legally required to sign such Tax Return
shall not be required to sign such Tax Return under this Agreement if there is no reasonable basis, in the opinion of a Tax advisor from a nationally recognized legal, accounting or professional tax services firm, for the Tax treatment of any item
reported on the Tax Return or the Tax treatment of any item reported on the Tax Return should, in the opinion of a Tax advisor from a nationally recognized legal, accounting or professional tax services firm, subject the other Company (or its
authorized representatives) to material penalties. 
 Section 4.07 Corner Store Carrybacks and Claims for
Refund. Corner Store hereby agrees that, unless Valero consents in writing, (i) no Adjustment Request with respect to any Joint Return (or any Return of Other Taxes described in clause (II) of Section 5.02) shall be filed, and
(ii) any available elections to waive the right to claim in any Pre-Deconsolidation 

  
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Period with respect to any Joint Return (or any Return of Other Taxes described in clause (II) of Section 5.02) any Corner Store Carryback arising in a Post-Deconsolidation Period shall be
made, and no affirmative election shall be made to claim any such Corner Store Carryback; provided, however, that the parties agree that any such Adjustment Request shall be made with respect to any Corner Store Carryback related to U.S.
federal or State Taxes, upon the reasonable request of Corner Store, if such Corner Store Carryback is necessary to prevent the loss of the federal and/or State Tax Benefit of such Corner Store Carryback (including, but not limited to, an Adjustment
Request with respect to a Corner Store Carryback of a federal or State capital loss arising in a Post-Deconsolidation Period to a Pre-Deconsolidation Period) and such Adjustment Request, based on Valero’s sole, reasonable determination, will
cause no Tax detriment to Valero, the Valero Group or any member of the Valero Group. Any Adjustment Request which Valero consents to make under this Section 4.07 shall be prepared and filed by the Responsible Company for the Tax Return to be
adjusted. 
 Section 4.08 Apportionment of Earnings and Profits and Tax Attributes. Valero shall in good
faith advise Corner Store in writing of the portion, if any, of any earnings and profits, Tax Attribute, overall foreign loss or other consolidated, combined or unitary attribute which Valero determines shall be allocated or apportioned to the
Corner Store Group under applicable law. Corner Store and all members of the Corner Store Group shall prepare all Tax Returns in accordance with such written notice. In the event that any temporary or final amendments to Treasury Regulations are
promulgated after the date of this Agreement that provide for any election to apply such regulations retroactively, then any such election shall be made only to the extent that Valero and Corner Store collectively agree to make such election. As
soon as practicable after receipt of a written request from Corner Store, Valero shall provide copies of any studies, reports, and workpapers supporting the earnings and profits and other Tax Attributes allocable to Corner Store. Any dispute
regarding the apportionment of such earnings and profits or any Tax Attribute shall be resolved pursuant to the provisions of Section 14 of this Agreement. All Tax Returns that are required to be filed under this Agreement after such resolution
shall be filed in accordance with such resolution. In the event of a subsequent adjustment to the earnings and profits or any Tax Attributes determined by Valero, Valero shall promptly notify Corner Store in writing of such adjustment. For the
absence of doubt, Valero shall not be liable to Corner Store or any member of the Corner Store Group for any failure of any determination under this Section 4.08 to be accurate under applicable law. 

Section 5. Tax Payments. 
 Section 5.01 Payment of Taxes with Respect to Valero Federal Consolidated Income Tax Returns. Valero shall pay to the IRS any Tax due with respect to any Valero Federal Consolidated
Income Tax Return (including any Federal Income Tax due from the Valero Affiliated Group that is required to be paid as a result of an adjustment to a Valero Federal Consolidated Income Tax Return). 

Section 5.02 Payment of Taxes With Respect to Joint Returns (other than a Valero Federal Consolidated Income Tax Return) and
Certain Returns of Other Taxes. In the case of (I) any Joint Return (other than a Valero Federal Consolidated Tax Return) and (II) any Return of Other Taxes reflecting both Taxes for which Valero is responsible under Section 2 and
Taxes for which Corner Store is responsible under Section 2: 
 (a) Computation and Payment of Tax
Due. The Responsible Company shall compute the amount of Tax required to be paid to the applicable Tax Authority (taking into account the requirements of Section 4.04 relating to consistent accounting practices, as applicable) with respect
to such Tax Return on such Payment Date. The Responsible Company shall pay such amount to such Tax Authority on or before such Payment Date (and provide notice and proof of payment to the other Company). 

  
 17 

 (b) Computation and Payment of Liability With Respect To Tax Due.
Within 30 days following the earlier of (i) the due date (including extensions) for filing any such Tax Return (excluding any Tax Return with respect to payment of estimated Taxes or Taxes due with a request for extension of time to file) or
(ii) the date on which such Tax Return is filed, if Valero is the Responsible Company, then Corner Store shall pay to Valero the amount allocable to the Corner Store Group under the provisions of Section 2, and if Corner Store is the
Responsible Company, then Valero shall pay to Corner Store the amount allocable to the Valero Group under the provisions of Section 2, in each case, plus interest computed at the Prime Rate on the amount of the payment based on the number of
days from the earlier of (i) the due date of the Tax Return (including extensions) or (ii) the date on which such Tax Return is filed, to the date of payment. 

(c) Adjustments Resulting in Underpayments. In the case of any adjustment pursuant to a Final Determination with
respect to any such Tax Return, the Responsible Company shall pay to the applicable Tax Authority when due any additional Tax due with respect to such Return required to be paid as a result of such adjustment pursuant to a Final Determination. The
Responsible Company shall compute the amount attributable to the Corner Store Group in accordance with Section 2 and Corner Store shall pay to Valero any amount due Valero (or Valero shall pay Corner Store any amount due Corner Store) under
Section 2 within 30 days from the later of (i) the date the additional Tax was paid by the Responsible Company or (ii) the date of receipt of a written notice and demand from the Responsible Company for payment of the amount due,
accompanied by evidence of payment and a statement detailing the Taxes paid and describing in reasonable detail the particulars relating thereto. Any payments required under this Section 5.02(c) shall include interest computed at the Prime Rate
based on the number of days from the date the additional Tax was paid by the Responsible Company to the date of the payment under this Section 5.02(c). 
 Section 5.03 Payment of Separate Company Taxes. Each Company shall pay, or shall cause to be paid, to the applicable Tax Authority when due all Taxes owed by such Company or a member of
such Company’s Group with respect to a Separate Return of Income Taxes and with respect to a Separate Return of Other Taxes (provided that Separate Returns of Other Taxes described in clause (II) of Section 5.02 shall be governed by
Section 5.02). 
 Section 5.04 Indemnification Payments. 

(a) If any Company (the “Payor”) is required under applicable Tax Law to pay to a Tax Authority a Tax that
another Company (the “Required Party”) is liable for under this Agreement, the Required Party shall pay the Payor the amount of such Tax (and any other amount required to be paid by the Required Party to the Payor pursuant to this
Agreement in connection with such payment) no later than 5 days prior to the due date for payment of such amount by the Payor to the applicable Tax Authority (including any applicable extensions). 

(b) All indemnification payments under this Agreement shall be made by Valero directly to Corner Store and by Corner Store
directly to Valero; provided, however, that if the Companies mutually agree with respect to any such indemnification payment, any member of the Valero Group, on the one hand, may make such indemnification payment to any member of the Corner
Store Group, on the other hand, and vice versa. 

  
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 Section 6. Tax Benefits. 

Section 6.01 Tax Benefits. 
 (a) Except as set forth below, Valero shall be entitled to any refund (and any interest thereon received from the applicable Tax Authority) of Income Taxes and Other Taxes for which Valero is
liable hereunder, Corner Store shall be entitled to any refund (and any interest thereon received from the applicable Tax Authority) of Income Taxes and Other Taxes for which Corner Store is liable hereunder and a Company receiving a refund to which
another Company is entitled hereunder shall pay over such refund to such other Company within 30 days after such refund is received (together with interest computed at the Prime Rate based on the number of days from the date the refund was received
to the date the refund was paid over). 
 (b) If a member of the Corner Store Group actually realizes in cash any Tax
Benefit as a result of an adjustment (other than an adjustment set forth in Schedule 6.01(b), as such Schedule 6.01(b) may be amended by mutual agreement by the Companies prior to the Distribution Date) pursuant to a Final Determination to any Taxes
for which a member of the Valero Group is liable hereunder (or any Tax Attribute of a member of the Valero Group) and such Tax Benefit would not have arisen but for such adjustment (determined on a “with and without” basis), or if a member
of the Valero Group actually realizes in cash any Tax Benefit as a result of an adjustment (other than an adjustment set forth in Schedule 6.01(b), as such Schedule 6.01(b) may be amended by mutual agreement by the Companies prior to the
Distribution Date) pursuant to a Final Determination to any Taxes for which a member of the Corner Store Group is liable hereunder (or any Tax Attribute of a member of the Corner Store Group) and such Tax Benefit would not have arisen but for such
adjustment (determined on a “with and without” basis), Corner Store or Valero, as the case may be, shall make a payment to either Valero or Corner Store, as appropriate, within 30 days following such actual realization of the Tax Benefit,
in an amount equal to such Tax Benefit actually realized in cash (including any Tax Benefit actually realized as a result of the payment), plus interest on such amount computed at the Prime Rate based on the number of days from the date of such
actual realization of the Tax Benefit to the date of payment of such amount under this Section 6.01(b). 
 (c) No
later than 30 days after a Tax Benefit described in Section 6.01(b) is actually realized in cash by a member of the Valero Group or a member of the Corner Store Group, Valero (if a member of the Valero Group actually realizes such Tax Benefit)
or Corner Store (if a member of the Corner Store Group actually realizes such Tax Benefit) shall provide the other Company with a written calculation of the amount payable to such other Company by Valero or Corner Store pursuant to this
Section 6. In the event that Valero or Corner Store disagrees with 

  
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any such calculation described in this Section 6.01(c), Valero or Corner Store shall so notify the other Company in writing within 30 days of receiving the written calculation set forth
above in this Section 6.01(c). Valero and Corner Store shall endeavor in good faith to resolve such disagreement, and, failing that, the amount payable under this Section 6 shall be determined in accordance with the disagreement resolution
provisions of Section 14 as promptly as practicable. 
 (d) Corner Store shall be entitled to any refund that is
attributable to, and would not have arisen but for, a Corner Store Carryback pursuant to the proviso set forth in Section 4.07. Any such payment of such refund made by Valero to Corner Store pursuant to this Section 6.01(d) shall be
recalculated in light of any Final Determination (or any other facts that may arise or come to light after such payment is made, such as a carryback of a Valero Group Tax Attribute to a Tax Period in respect of which such refund is received) that
would affect the amount to which Corner Store is entitled, and an appropriate adjusting payment shall be made by Corner Store to Valero such that the aggregate amounts paid pursuant to this Section 6.01(d) equals such recalculated amount (with
interest computed at the Prime Rate). 
 (e) Valero shall be entitled to any refund (and any interest thereon received
from the applicable Tax Authority) of Taxes as a result of a Final Determination in respect of the Specified Tax Contest, and Corner Store shall, if it or any of its Affiliates receives such refund, pay over such refund to Valero within 30 days
after such refund is received (together with interest computed at the Prime Rate based on the number of days from the date the refund was received to the date the refund was paid over and net of any Taxes imposed on Corner Store or such Affiliate
with respect to the receipt of such refund). 
 Section 6.02 Valero and Corner Store Income Tax Deductions in Respect of
Certain Equity Awards and Incentive Compensation. Solely the member of the Group for which the relevant individual is currently employed or, if such individual is not currently employed by a member of the Group, was most recently employed
at the time of the vesting, exercise, disqualifying disposition, payment or other relevant taxable event, as appropriate, in respect of the equity awards and other incentive compensation described in Article 4 of the Employee Matters Agreement shall
be entitled to claim any Income Tax deduction in respect of such equity awards and other incentive compensation on its respective Tax Return associated with such event, provided, however, that for the avoidance of doubt, any equity award or other
incentive compensation described in Article 4 of the Employee Matters Agreement that vests in connection with the Transactions shall be treated as vesting in the Pre-Deconsolidation Period. 

Section 7. Tax-Free Status. 
 Section 7.01 Tax Opinions/Rulings and Representation Letters. 
 (a)
Each of Corner Store and Valero hereby represents and agrees that (A) it will read the Representation Letters prior to the date submitted and (B) subject to any qualifications therein, all information contained in such Representation
Letters that concerns or relates to such Company or any member of its Group will be true, correct and complete. 
 (b) To
the extent that any Tax Opinions/Rulings or Representation Letters have not yet been obtained or submitted as of the date hereof, Corner Store and Valero shall use their 

  
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commercially reasonable efforts and shall cooperate in good faith to finalize the Representation Letters for the Distribution as soon as possible hereafter and to cause the same to be submitted
to the Tax Advisors, the IRS or such other governmental authorities as Valero shall deem necessary or desirable and shall take such other commercially reasonable actions as may be necessary or desirable to obtain the Tax Opinions/Rulings in order to
confirm the Tax-Free Status. 
 Section 7.02 Restrictions on Corner Store. 

(a) Corner Store agrees that it will not take or fail to take, or permit any Corner Store Affiliate to take or fail to take, any
action where such action or failure to act would be inconsistent with or cause to be untrue any material, information, covenant or representation in any Representation Letters or Tax Opinions/Rulings. Corner Store agrees that it will not take or
fail to take, or permit any Corner Store Affiliate, to take or fail to take, any action which prevents or could reasonably be expected to prevent (A) the Tax-Free Status, or (B) any transaction contemplated by the Separation and
Distribution Agreement which is intended by the parties to be tax-free (including, but not limited to, those transactions listed on Schedule 7.02(a), as such Schedule 7.02(a) may be amended by mutual agreement by the Companies prior to the
Distribution Date) from so qualifying, including, in the case of Corner Store, issuing any Corner Store Capital Stock that would prevent the Distribution from qualifying as a tax-free distribution within the meaning of Section 355 of the Code.

 (b) Pre-Distribution Period. During the period from the date hereof until the completion of the Distribution, Corner
Store shall not take any action (including the issuance of Corner Store Capital Stock) or permit any Corner Store Affiliate directly or indirectly controlled by Corner Store, as the case may be, to take any action if, as a result of taking such
action, Corner Store could have a number of shares of Corner Store Capital Stock (computed on a fully diluted basis or otherwise) issued and outstanding, including by way of the exercise of stock options (whether or not such stock options are
currently exercisable) or the issuance of restricted stock, that could cause Valero to cease to have Tax Control of Corner Store. 
 (c) Corner Store agrees that, from the date hereof until the first day after the two-year anniversary of the Distribution Date, it will (i) maintain its status as a company engaged in the
Active Trade or Business for purposes of Section 355(b)(2) of the Code and (ii) not engage in any transaction that would result in it ceasing to be a company engaged in the Active Trade or Business for purposes of Section 355(b)(2) of
the Code, in each case, taking into account Section 355(b)(3) of the Code. 
 (d) Corner Store agrees that, from the
date hereof until the first day after the two-year anniversary of the Distribution Date, it will not 
 (i) enter
into any Proposed Acquisition Transaction or, to the extent Corner Store has the right to prohibit any Proposed Acquisition Transaction, permit any Proposed Acquisition Transaction to occur (whether by (a) redeeming rights under a shareholder
rights plan, (b) finding a tender offer to be a “permitted offer” under any such plan or otherwise causing any such plan to be inapplicable or neutralized with respect to any Proposed Acquisition Transaction, or (c) approving any
Proposed Acquisition Transaction, whether for purposes of Section 203 of the DGCL or any similar corporate statute, any “fair price” or other provision of Corner Store’s charter or bylaws or otherwise), 

  
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 (ii) merge or consolidate with any other Person or liquidate or partially
liquidate, 
 (iii) in a single transaction or series of transactions sell or transfer (other than sales or
transfers of inventory in the ordinary course of business) all or substantially all of the assets that were transferred to Corner Store pursuant to the Contribution or sell or transfer 60% or more of the gross assets of the Active Trade or Business
or 60% or more of the consolidated gross assets of Corner Store and its Affiliates (such percentages to be measured based on fair market value as of the Distribution Date), 

(iv) redeem or otherwise repurchase (directly or through a Corner Store Affiliate) any Corner Store stock, or rights to
acquire stock, except to the extent such repurchases satisfy Section 4.05(1)(b) of Revenue Procedure 96-30 (as in effect prior to the amendment of such Revenue Procedure by Revenue Procedure 2003-48), 

(v) amend its certificate of incorporation (or other organizational documents), or take any other action, whether through
a stockholder vote or otherwise, affecting the voting rights of Corner Store Capital Stock (including, without limitation, through the conversion of one class of Corner Store Capital Stock into another class of Corner Store Capital Stock) or

 (vi) take or fail to take any other action or actions (including any action or transaction that would be
reasonably likely to be inconsistent with any representation made in the Representation Letters or the Tax Opinions/Rulings) which in the aggregate (and taking into account any other transactions described in this subparagraph (d)) would be
reasonably likely to have the effect of causing or permitting one or more persons (whether or not acting in concert) to acquire directly or indirectly stock representing a Fifty-Percent or Greater Interest in Corner Store or otherwise jeopardize the
Tax-Free Status, unless prior to taking any such action set forth in the foregoing clauses (i) through (vi): 
 (A) Corner Store shall have requested that Valero obtain a Ruling in accordance with Section 7.04(b) and (d) of this Agreement to the effect that such transaction will not affect the Tax-Free
Status and Valero shall have received such a Ruling in form and substance satisfactory to Valero in its sole and absolute discretion, which discretion shall be exercised in good faith solely to preserve the Tax-Free Status (and in determining
whether a Ruling is satisfactory, Valero may consider, among other factors, the appropriateness of any underlying assumptions and management’s representations made in connection with such Ruling); or 

(B) Corner Store shall provide Valero with an Unqualified Tax Opinion in form and substance satisfactory to Valero in its
sole and absolute discretion, which discretion shall be exercised in good faith solely to preserve the Tax-Free Status (and in determining whether an opinion is satisfactory, Valero 

  
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may consider, among other factors, the appropriateness of any underlying assumptions and management’s representations if used as a basis for the opinion and Valero may determine that no
opinion would be acceptable to Valero); or 
 (C) Valero shall have waived the requirement to obtain such Ruling
or Unqualified Tax Opinion. 
 (e) Certain Issuances of Corner Store Capital Stock. If Corner Store proposes to enter
into any Specified Acquisition Transaction or, to the extent Corner Store has the right to prohibit any Specified Acquisition Transaction, proposes to permit any Specified Acquisition Transaction to occur, in each case, during the period from the
date hereof until the first day after the two-year anniversary of the Distribution Date, Corner Store shall provide Valero, no later than ten days following the signing of any written agreement with respect to the Specified Acquisition Transaction,
with a written description of such transaction (including the type and amount of Corner Store Capital Stock to be issued in such transaction) and a certificate of the Board of Directors of Corner Store to the effect that the Specified Acquisition
Transaction is not a Proposed Acquisition Transaction or any other transaction to which the requirements of Section 7.02(d) apply (a “Board Certificate”). 

(f) Distributions by Foreign Corner Store Subsidiaries. Until January 1st of the calendar year immediately following the calendar year in
which the Distribution occurs, Corner Store shall neither cause nor permit any foreign subsidiary of Corner Store to enter into any transaction or take any action that would be considered under the Code to constitute the declaration or payment of a
dividend (including pursuant to Section 304 of the Code) without obtaining the prior written consent of Valero (such prior written consent not to be unreasonably withheld). 

(g) Internal Restructurings. Corner Store agrees that, from the date hereof until the first day after the two-year anniversary of
the Distribution Date, it will not undertake any internal restructuring of the Corner Store Group (including, without limitation, any merger, contribution, distribution or liquidation of any entity of the Corner Store Group or the equity interests
therein) without the prior written consent of Valero, which consent shall not be unreasonably delayed, conditioned or withheld. 

Section 7.03 [RESERVED] 
 Section 7.04 Procedures Regarding Opinions and Rulings. 
 (a)
If Corner Store notifies Valero that it desires to take one of the actions described in clauses (i) through (vi) of Section 7.02(d) (a “Notified Action”), Valero and Corner Store shall reasonably cooperate to
attempt to obtain the Ruling or Unqualified Tax Opinion referred to in Section 7.02(d), unless Valero shall have waived the requirement to obtain such Ruling or Unqualified Tax Opinion. 

(b) Rulings or Unqualified Tax Opinions at Corner Store’s Request. Valero agrees that at the reasonable request of Corner
Store pursuant to Section 7.02(d), Valero shall cooperate with Corner Store and use its reasonable best efforts to seek to obtain, as expeditiously as possible, a Ruling from the IRS or an Unqualified Tax Opinion for the purpose of permitting

  
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Corner Store to take the Notified Action. Further, in no event shall Valero be required to file any Ruling Request under this Section 7.04(b) unless Corner Store represents that (A) it
has read the Ruling Request, and (B) all information and representations, if any, relating to any member of the Corner Store Group, contained in the Ruling Request documents are (subject to any qualifications therein) true, correct and
complete. Corner Store shall reimburse Valero for all reasonable costs and expenses incurred by the Valero Group in obtaining a Ruling or Unqualified Tax Opinion requested by Corner Store within ten Business Days after receiving an invoice from
Valero therefor. 
 (c) Rulings or Unqualified Tax Opinions at Valero’s Request. Valero shall have the right to
obtain a Ruling or an Unqualified Tax Opinion at any time in its sole and absolute discretion. If Valero determines to obtain a Ruling or an Unqualified Tax Opinion, Corner Store shall (and shall cause each Affiliate of Corner Store to) cooperate
with Valero and take any and all actions reasonably requested by Valero in connection with obtaining the Ruling or Unqualified Tax Opinion (including, without limitation, by making any representation or covenant or providing any materials or
information requested by the IRS or Tax Advisor; provided that Corner Store shall not be required to make (or cause any Affiliate of Corner Store to make) any representation or covenant that is inconsistent with historical facts or as to
future matters or events over which it has no control). Valero shall reimburse Corner Store for all reasonable costs and expenses incurred by the Corner Store Group in obtaining a Ruling or an Unqualified Tax Opinion requested by Valero within 10
business days after receiving an invoice from Corner Store therefor. 
 (d) Corner Store hereby
agrees that Valero shall have sole and exclusive control over the process of obtaining any Ruling, and that only Valero shall apply for a Ruling. In connection with obtaining a Ruling pursuant to Section 7.04(b), (A) Valero shall keep
Corner Store informed in a timely manner of all material actions taken or proposed to be taken by Valero in connection therewith; (B) Valero shall (1) reasonably in advance of the submission of any Ruling Request documents provide Corner
Store with a draft copy thereof, (2) reasonably consider Corner Store’s comments on such draft copy, and (3) provide Corner Store with a final copy; and (C) Valero shall provide Corner Store with notice reasonably in advance of,
and Corner Store shall have the right to attend, any formally scheduled meetings with the IRS (subject to the approval of the IRS) that relate to such Ruling. Neither Corner Store nor any Corner Store Affiliate directly or indirectly controlled by
Corner Store shall seek any guidance from the IRS or any other Tax Authority (whether written, verbal or otherwise) at any time concerning the Contribution or the Distribution (including the impact of any transaction on the Contribution or the
Distribution) or any transaction listed on Schedule 7.02(a). 
 Section 7.05 Liability for Tax-Related Losses.

 (a) Notwithstanding anything in this Agreement or the Separation and Distribution Agreement to the contrary, subject
to Section 7.05(c), Corner Store shall be responsible for, and shall indemnify and hold harmless Valero and its Affiliates and each of their respective officers, directors and employees from and against, one hundred percent (100%) of any
Tax-Related Losses that are attributable to or result from any one or more of the following (but not, for the avoidance of doubt, as a result of the exercise by any Holder (as defined in the Registration Rights Agreement) of its rights pursuant to
the Registration Rights Agreement to require Corner 

  
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Store to register the Corner Store Capital Stock owned by such Holder with the Securities and Exchange Commission): (A) the acquisition (other than pursuant to the Contribution, as defined
in the Separation and Distribution Agreement, or the Distribution) of all or a portion of Corner Store’s stock and/or its or its subsidiaries’ assets by any means whatsoever by any Person, (B) any negotiations, understandings,
agreements or arrangements by Corner Store with respect to transactions or events (including, without limitation, stock issuances, pursuant to the exercise of stock options or otherwise, option grants, capital contributions or acquisitions, or a
series of such transactions or events) that cause the Distribution to be treated as part of a plan pursuant to which one or more Persons acquire directly or indirectly stock of Corner Store representing a Fifty-Percent or Greater Interest therein,
(C) any action or failure to act by Corner Store after the Distribution (including, without limitation, any amendment to Corner Store’s certificate of incorporation (or other organizational documents), whether through a stockholder vote or
otherwise) affecting the voting rights of Corner Store stock (including, without limitation, through the conversion of one class of Corner Store Capital Stock into another class of Corner Store Capital Stock), (D) any act or failure to act by
Corner Store or any Corner Store Affiliate described in Section 7.02 (regardless whether such act or failure to act is covered by a Ruling, Unqualified Tax Opinion or waiver described in clause (A), (B) or (C) of Section 7.02(d),
a Board Certificate described in Section 7.02(e) or a consent described in Section 7.02(f) or (g)) or (E) any breach by Corner Store of its agreement and representation set forth in Section 7.01(a). 

(b) Notwithstanding anything in this Agreement or the Separation and Distribution Agreement to the contrary, subject to
Section 7.05(c), Valero shall be responsible for, and shall indemnify and hold harmless Corner Store and its Affiliates and each of their respective officers, directors and employees from and against, one hundred percent (100%) of any
Tax-Related Losses that are attributable to, or result from any one or more of the following: (A) the acquisition (other than pursuant to the Contribution, as defined in the Separation and Distribution Agreement, or the Distribution) of all or
a portion of Valero’s stock and/or its assets by any means whatsoever by any Person, (B) any negotiations, agreements or arrangements by Valero with respect to transactions or events (including, without limitation, stock issuances,
pursuant to the exercise of stock options or otherwise, option grants, capital contributions or acquisitions, or a series of such transactions or events) that cause the Distribution to be treated as part of a plan pursuant to which one or more
Persons acquire directly or indirectly stock of Valero representing a Fifty-Percent or Greater Interest therein, or (C) any breach by Valero of its agreement and representation set forth in Section 7.01(a). 

(c) 
 (i) To the extent that any Tax-Related Loss is subject to indemnity under both Sections 7.05(a) and (b), responsibility for such Tax-Related Loss shall be shared by Valero and Corner Store according to
relative fault. 
 (ii) Notwithstanding anything in Section 7.05(b) or (c)(i) or any other provision of this
Agreement or the Separation and Distribution Agreement to the contrary with respect to (I) any Tax-Related Loss resulting from Section 355(e) of the Code (other than as a result of an acquisition of a Fifty-Percent or Greater Interest in
Valero) and (II) any other Tax-Related Loss resulting (for the absence of doubt, in whole or in part) from an acquisition after the Distribution of any stock or assets of Corner Store (or any Corner

  
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Store Affiliate) by any means whatsoever by any Person or any action or failure to act by Corner Store affecting the voting rights of Corner Store stock, Corner Store shall be responsible for,
and shall indemnify and hold harmless Valero and its Affiliates and each of their respective officers, directors and employees from and against, one hundred percent (100%) of such Tax-Related Loss. 

(iii) Notwithstanding anything in Section 7.05(a) or (c)(i) or any other provision of this Agreement or the
Separation and Distribution Agreement to the contrary, with respect to (I) any Tax-Related Loss resulting from Section 355(e) of the Code (other than as a result of an acquisition of a Fifty-Percent or Greater Interest in Corner Store) and
(II) any other Tax-Related Loss resulting (for the absence of doubt, in whole or in part) from an acquisition after the Distribution of any stock or assets of Valero (or any Valero Affiliate) by any means whatsoever by any Person, Valero shall be
responsible for, and shall indemnify and hold harmless Corner Store and its Affiliates and each of their respective officers, directors and employees from and against, one hundred percent (100%) of such Tax-Related Loss. 

(d) Corner Store shall pay Valero the amount of any Tax-Related Losses for which Corner Store is responsible under this
Section 7.05: (A) in the case of Tax-Related Losses described in clause (i) of the definition of Tax-Related Losses no later than two Business Days prior to the date Valero files, or causes to be filed, the applicable Tax Return for
the year of the Contribution or Distribution, as applicable (the “Filing Date”), provided that Valero delivers timely notice to Corner Store of the amount of such Tax-Related Losses then due and owing by Corner Store
(provided that if such Tax-Related Losses arise pursuant to a Final Determination described in clause (a), (b) or (c) of the definition of “Final Determination,” then Corner Store shall pay Valero no later than two
Business Days after the date of such Final Determination with interest calculated at the Prime Rate, compounded semiannually, from the date that is two Business Days prior to the Filing Date through the date of such Final Determination) and
(B) in the case of Tax-Related Losses described in clause (ii) or (iii) of the definition of Tax-Related Losses, no later than two Business Days after the date Valero delivers Corner Store with notice that is has paid such Tax-Related
Losses and the amount of such Tax-Related Losses then due and owing by Corner Store. Valero shall pay Corner Store the amount of any Tax-Related Losses (described in clause (ii) or (iii) of the definition of Tax-Related Loss) for which
Valero is responsible under this Section 7.05 no later than two Business Days after the date Corner Store pays such Tax-Related Losses. 
 (e) For purposes of calculating the amount and timing of any Tax-Related Loss for which Corner Store is responsible under this Section 7.05, Tax-Related Losses shall be calculated by assuming
that Valero, the Valero Affiliated Group and each member of the Valero Group (I) pay Tax at the highest marginal corporate Tax rates in effect in each relevant taxable year and (II) have no Tax Attributes in any relevant taxable year.

 (f) For purposes of calculating the amount and timing of any Tax-Related Loss for which Valero is responsible under
this Section 7.05, Tax-Related Losses shall be calculated by assuming that Corner Store, and each member of the Corner Store Group (I) pay Tax at the highest marginal corporate Tax rates in effect in each relevant taxable year and (II)
have no Tax Attributes in any relevant taxable year. 

  
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 Section 8. Assistance and Cooperation. 

Section 8.01 Assistance and Cooperation. 
 (a) The Companies shall cooperate (and cause their respective Affiliates to cooperate) with each other and with each other’s agents, including accounting firms and legal counsel, in connection
with Tax matters relating to the Companies and their Affiliates including (i) preparation and filing of Tax Returns, (ii) determining the liability for and amount of any Taxes due (including estimated Taxes) or the right to and amount of
any refund of Taxes, (iii) examinations of Tax Returns, and (iv) any administrative or judicial proceeding in respect of Taxes assessed or proposed to be assessed. Such cooperation shall include making all information and documents in
their possession relating to the other Company and its Affiliates available to such other Company as provided in Section 9. Each of the Companies shall also make available to the other, as reasonably requested and available, personnel
(including officers, directors, employees and agents of the Companies or their respective Affiliates) responsible for preparing, maintaining, and interpreting information and documents relevant to Taxes, and personnel reasonably required as
witnesses or for purposes of providing information or documents in connection with any administrative or judicial proceedings relating to Taxes. In the event that a member of the Valero Group, on the one hand, or a member of the Corner Store Group,
on the other hand, suffers a Tax detriment as a result of a Transfer Pricing Adjustment, the Companies shall cooperate pursuant to this Section 8 to seek any competent authority relief that may be available with respect to such Transfer Pricing
Adjustment. 
 (b) Any information or documents provided under this Section 8 shall be kept confidential by the
Company receiving the information or documents, except as may otherwise be necessary in connection with the filing of Tax Returns or in connection with any administrative or judicial proceedings relating to Taxes. Notwithstanding any other provision
of this Agreement or any other agreement, (i) neither Valero nor any Valero Affiliate shall be required to provide Corner Store or any Corner Store Affiliate or any other Person access to or copies of any information or procedures (including
the proceedings of any Tax Contest) other than information or procedures that relate solely to Corner Store, the business or assets of Corner Store or any Corner Store Affiliate and (ii) in no event shall Valero or any Valero Affiliate be
required to provide Corner Store, any Corner Store Affiliate or any other Person access to or copies of any information if such action could reasonably be expected to result in the waiver of any Privilege. In addition, in the event that Valero
determines that the provision of any information to Corner Store or any Corner Store Affiliate could be commercially detrimental, violate any law or agreement or waive any Privilege, the parties shall use reasonable best efforts to permit compliance
with its obligations under this Section 8 in a manner that avoids any such harm or consequence. If Corner Store determines that the provision of any information to Valero or any Valero Affiliate could be commercially detrimental, violate any
law or agreement or waive any Privilege, the parties shall use reasonable best efforts to avoid any such harm or consequences. 

Section 8.02 Income Tax Return Information. 
 (a) Corner Store and Valero acknowledge that time is of the essence in relation to any request for information, assistance or cooperation made by Valero or Corner Store pursuant to

  
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Section 8.01 or this Section 8.02. Corner Store and Valero acknowledge that failure to conform to the deadlines set forth herein or reasonable deadlines otherwise set by Valero or
Corner Store could cause irreparable harm. 
 (b) Each Company shall provide to the other Company information and
documents relating to its Group required by the other Company to prepare Tax Returns. Any information or documents the Responsible Company requires to prepare such Tax Returns shall be provided in such form as the Responsible Company reasonably
requests and, to the extent practicable, in sufficient time for the Responsible Company to file such Tax Returns on a timely basis. 
 Section 8.03 Reliance by Valero. If any member of the Corner Store Group supplies information to a member of the Valero Group in connection with a Tax liability and an officer of a
member of the Valero Group signs a statement or other document under penalties of perjury in reliance upon the accuracy of such information, then upon the written request of such member of the Valero Group identifying the information being so relied
upon, the chief financial officer of Corner Store (or any officer of Corner Store as designated by the chief financial officer of Corner Store) shall certify in writing that to his or her knowledge (based upon consultation with appropriate
employees) the information so supplied is accurate and complete. Corner Store agrees to indemnify and hold harmless each member of the Valero Group and its directors, officers and employees from and against any fine, penalty, or other cost or
expense of any kind attributable to a member of the Corner Store Group having supplied, pursuant to this Section 8, a member of the Valero Group with inaccurate or incomplete information in connection with a Tax liability. 

Section 8.04 Reliance by Corner Store. If any member of the Valero Group supplies information to a member of the
Corner Store Group in connection with a Tax liability and an officer of a member of the Corner Store Group signs a statement or other document under penalties of perjury in reliance upon the accuracy of such information, then upon the written
request of such member of the Corner Store Group identifying the information being so relied upon, the chief financial officer of Valero (or any officer of Valero as designated by the chief financial officer of Valero) shall certify in writing that
to his or her knowledge (based upon consultation with appropriate employees) the information so supplied is accurate and complete. Valero agrees to indemnify and hold harmless each member of the Corner Store Group and its directors, officers and
employees from and against any fine, penalty, or other cost or expense of any kind attributable to a member of the Valero Group having supplied, pursuant to this Section 8, a member of the Corner Store Group with inaccurate or incomplete
information in connection with a Tax liability. 
 Section 9. Tax Records. 

Section 9.01 Retention of Tax Records. Each Company shall preserve and keep all Tax Records exclusively relating to
the assets and activities of its Group for Pre-Deconsolidation Periods, and Valero shall preserve and keep all other Tax Records relating to Taxes of the Groups for Pre-Deconsolidation Tax Periods, for so long as the contents thereof may become
material in the administration of any matter under the Code or other applicable Tax Law, but in any event until the later of (i) the expiration of any applicable statutes of limitations, or (ii) seven years after the Deconsolidation Date
(such later date, the “Retention Date”). After the 

  
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Retention Date, each Company may dispose of such Tax Records provided that the other Company has not requested in writing within 30 days following the Retention Date the opportunity to copy or
remove all or any part of such Tax Records. Upon such written request, the requesting Company shall have the opportunity, at its cost and expense, to copy or remove, within 30 days of such request, all or any part of such Tax Records and the other
Company may dispose of Such Tax Records following such 30 day period. If, prior to the Retention Date, a Company reasonably determines that any Tax Records which it would otherwise be required to preserve and keep under this Section 9 are no
longer material in the administration of any matter under the Code or other applicable Tax Law and the other Company agrees in writing, then such first Company may dispose of such Tax Records upon 90 days’ prior written notice to the other
Company. Any notice of an intent to dispose given pursuant to this Section 9.01 shall include a list of the Tax Records to be disposed of describing in reasonable detail each file, book, or other record accumulation being disposed. The notified
Company shall have the opportunity, at its cost and expense, to copy or remove, within such 90-day period, all or any part of such Tax Records. If, at any time prior to the Retention Date, Corner Store determines to decommission or otherwise
discontinue any computer program or information technology system used to access or store any Tax Records, then Corner Store may decommission or discontinue such program or system upon 90 days’ prior written notice to Valero and Valero shall
have the opportunity, at its cost and expense, to copy, within such 90-day period, all or any part of the underlying data relating to the Tax Records accessed by or stored on such program or system. 

Section 9.02 Access to Tax Records. The Companies and their respective Affiliates shall make available to each other
for inspection and copying during normal business hours upon reasonable notice all Tax Records (and, for the avoidance of doubt, any pertinent underlying data accessed or stored on any computer program or information technology system) in their
possession and shall permit the other Company and its Affiliates, authorized agents and representatives and any representative of a Taxing Authority or other Tax auditor access during normal business hours upon reasonable notice to any computer
program or information technology system used to access or store any Tax Records, in each case to the extent reasonably required by the other Company in connection with the preparation of Tax Returns or financial accounting statements, audits,
litigation, or the resolution of items under this Agreement, and in all events subject to such reasonable requirements as the providing party’s information technology department may impose to ensure compliance with such party’s data
protection policies. 
 Section 10. Tax Contests. 

Section 10.01 Notice. Each of the Companies shall provide prompt notice to the other Company of any written
communication from a Tax Authority regarding any pending or threatened Tax audit, assessment or proceeding or other Tax Contest of which it becomes aware related to Taxes for Tax Periods for which it is indemnified by the other Company hereunder.
Such notice shall attach copies of the pertinent portion of any written communication from a Tax Authority and contain factual information (to the extent known) describing any asserted Tax liability in reasonable detail and shall be accompanied by
copies of any notice and other documents received from any Tax Authority in respect of any such matters. If an indemnified party has knowledge of an asserted Tax liability with respect to a matter for which it is to be indemnified hereunder and such
party fails to give the indemnifying party prompt notice of such 

  
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asserted Tax liability and the indemnifying party is entitled under this Agreement to contest the asserted Tax liability, then (i) if the indemnifying party is precluded from contesting the
asserted Tax liability in any forum as a result of the failure to give prompt notice, the indemnifying party shall have no obligation to indemnify the indemnified party for any Taxes arising out of such asserted Tax liability, and (ii) if the
indemnifying party is not precluded from contesting the asserted Tax liability in any forum, but such failure to give prompt notice results in a material monetary detriment to the indemnifying party, then any amount which the indemnifying party is
otherwise required to pay the indemnified party pursuant to this Agreement shall be reduced by the amount of such detriment. 

Section 10.02 Control of Tax Contests. 
 (a) Separate Company Taxes. In the case of any Tax Contest with respect to any Separate Return (other than a Separate Return of Other Taxes described in clause (II) of Section 5.02), the
Company having liability for the Tax shall have exclusive control over the Tax Contest, including exclusive authority with respect to any settlement of such Tax liability, subject to Sections 10.02(f) and (g) below. 

(b) Valero Federal Consolidated Income Tax Return. In the case of any Tax Contest with respect to any Valero Federal Consolidated
Income Tax Return, Valero shall have exclusive control over the Tax Contest, including exclusive authority with respect to any settlement of such Tax liability, subject to Sections 10.02(f) and (g) below. 

(c) Valero State Combined Income Tax Return. In the case of any Tax Contest with respect to any Valero State Combined Income Tax
Return, Valero shall have exclusive control over the Tax Contest, including exclusive authority with respect to any settlement of such Tax liability, subject to Sections 10.02(f) and (g) below. 

(d) Valero Foreign Combined Income Tax Return. In the case of any Tax Contest with respect to any Valero Foreign Combined Income
Tax Return, Valero shall have exclusive control over the Tax Contest, including exclusive authority with respect to any settlement of such Tax liability, subject to Sections 10.02(f) and (g) below. 

(e) Joint Returns and Certain Other Returns. In the case of any Tax Contest with respect to (I) any Joint Return (other than
any Valero Federal Consolidated Income Tax Return, any Valero State Combined Income Tax Return or any Valero Foreign Combined Income Tax Return) or (II) any Return of Other Taxes described in clause (II) of Section 5.02, (i) Valero shall
control the defense or prosecution of the portion of the Tax Contest directly and exclusively related to any Valero Adjustment, including settlement of any such Valero Adjustment and (ii) Corner Store shall control the defense or prosecution of
the portion of the Tax Contest directly and exclusively related to any Corner Store Adjustment, including settlement of any such Corner Store Adjustment, and (iii) the Tax Contest Committee shall control the defense or prosecution of Joint
Adjustments and any and all administrative matters not directly and exclusively related to any Valero Adjustment or Corner Store Adjustment. The “Tax Contest Committee” shall be comprised of two persons, one person selected by
Valero (as designated in writing to Corner Store) and one person selected by Corner Store (as designated in writing to Valero). Each person serving on the Tax Contest Committee shall continue to serve unless and

  
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until he or she is replaced by the party designating such person. Any and all matters to be decided by the Tax Contest Committee shall require the unanimous approval of both persons serving on
the committee. In the event the Tax Contest Committee shall be deadlocked on any matter, the provisions of Section 14 of this Agreement shall apply. 
 (f) Settlement Rights. The Controlling Party shall have the sole right to contest, litigate, compromise and settle any Tax Contest without obtaining the prior consent of the Non-Controlling Party.
Unless waived by the parties in writing, in connection with any potential adjustment in a Tax Contest as a result of which adjustment the Non-Controlling Party may reasonably be expected to become liable to make any indemnification payment (or any
payment under Section 6) to the Controlling Party under this Agreement: (i) the Controlling Party shall keep the Non-Controlling Party informed in a timely manner of all actions taken or proposed to be taken by the Controlling Party with
respect to such potential adjustment in such Tax Contest; (ii) the Controlling Party shall provide the Non-Controlling Party copies of any written materials relating to such potential adjustment in such Tax Contest received from any Tax
Authority; (iii) the Controlling Party shall timely provide the Non-Controlling Party with copies of any correspondence or filings submitted to any Tax Authority or judicial authority in connection with such potential adjustment in such Tax
Contest; (iv) the Controlling Party shall consult with the Non-Controlling Party and offer the Non-Controlling Party a reasonable opportunity to comment before submitting any written materials prepared or furnished in connection with such
potential adjustment in such Tax Contest; and (v) the Controlling Party shall defend such Tax Contest diligently and in good faith. The failure of the Controlling Party to take any action specified in the preceding sentence with respect to the
Non-Controlling Party shall not relieve the Non-Controlling Party of any liability and/or obligation which it may have to the Controlling Party under this Agreement except to the extent that the Non-Controlling Party was actually harmed by such
failure, and in no event shall such failure relieve the Non-Controlling Party from any other liability or obligation which it may have to the Controlling Party. In the case of any Tax Contest described in Section 10.02(a), (b), (c) or (d),
“Controlling Party” means the Company entitled to control the Tax Contest under such Section and “Non-Controlling Party” means the other Company. In the case of any Tax Contest described in Section 10.02(i),
“Controlling Party” means Valero and “Non-Controlling Party” means Corner Store. 
 (g) Tax
Contest Participation. Unless waived by the parties in writing, the Controlling Party shall provide the Non-Controlling Party with written notice reasonably in advance of, and the Non-Controlling Party shall have the right to attend, any
formally scheduled meetings with Tax Authorities or hearings or proceedings before any judicial authorities in connection with any potential adjustment in a Tax Contest pursuant to which the Non-Controlling Party may reasonably be expected to become
liable to make any indemnification payment (or any payment under Section 6) to the Controlling Party under this Agreement. The failure of the Controlling Party to provide any notice specified in this Section 10.02(g) to the Non-Controlling
Party shall not relieve the Non-Controlling Party of any liability and/or obligation which it may have to the Controlling Party under this Agreement except to the extent that the Non-Controlling Party was actually harmed by such failure, and in no
event shall such failure relieve the Non-Controlling Party from any other liability or obligation which it may have to the Controlling Party. 

  
 31 

 (h) Power of Attorney. Each member of the Corner Store Group shall execute and
deliver to Valero (or such member of the Valero Group as Valero shall designate) any power of attorney or other similar document reasonably requested by Valero (or such designee) in connection with any Tax Contest (as to which Valero is the
Controlling Party) described in this Section 10. Each member of the Valero Group shall execute and deliver to Corner Store (or such member of the Corner Store Group as Corner Store shall designate) any power of attorney or other similar
document requested by Corner Store (or such designee) in connection with any Tax Contest (as to which Corner Store is the Controlling Party) described in this Section 10. 
 (i) Specified Tax Contest. Notwithstanding the above provisions of this Section 10.02, but subject to Sections 10.02(f), (g) and (h), Valero shall have exclusive control over any
Specified Tax Contest, including exclusive authority with respect to any settlement of such Tax liability. 

Section 11. Effective Date; Termination of Prior Intercompany Tax Allocation Agreements. This Agreement shall be effective as
of the date hereof. As of the date hereof, (i) all prior intercompany Tax allocation agreements or arrangements shall be terminated, and (ii) amounts due under such agreements as of the date hereof shall be settled as of the date hereof.
Upon such termination and settlement, no further payments by or to Valero or by or to Corner Store, with respect to such agreements shall be made, and all other rights and obligations resulting from such agreements between the Companies and their
Affiliates shall cease at such time. Any payments pursuant to such agreements shall be disregarded for purposes of computing amounts due under this Agreement; provided that to the extent appropriate, as determined by Valero, payments made
pursuant to such agreements shall be credited to Corner Store or Valero, respectively, in computing their respective obligations pursuant to this Agreement, in the event that such payments relate to a Tax liability that is the subject matter of this
Agreement for a Tax Period that is the subject matter of this Agreement. 
 Section 12. Survival of Obligations. The
representations, warranties, covenants and agreements set forth in this Agreement shall be unconditional and absolute and shall remain in effect without limitation as to time. 
 Section 13. Treatment of Payments; Tax Gross Up. 

Section 13.01 Treatment of Tax Indemnity and Tax Benefit Payments. In the absence of any change in Tax treatment under
the Code or other applicable Tax Law, 
 (a) any Tax indemnity payments made by a Company under Section 5 shall be
reported for Tax purposes by the payor and the recipient as distributions or capital contributions, as appropriate, occurring immediately before the Deconsolidation (but only to the extent the payment does not relate to a Tax allocated to the payor
in accordance with Section 1552 of the Code or the regulations thereunder or Treasury Regulation Section 1.1502-33(d) (or under corresponding principles of other applicable Tax Laws)) or as payments of an assumed or retained liability, and

 (b) any Tax Benefit payments made by a Company under Section 6, shall be reported for Tax purposes by the payor
and the recipient as distributions or capital contributions, as 

  
 32 

 
appropriate, occurring immediately before the Deconsolidation (but only to the extent the payment does not relate to a Tax allocated to the payor in accordance with Section 1552 of the Code
or the regulations thereunder or Treasury Regulation Section 1.1502-33(d) (or under corresponding principles of other applicable Tax Laws)) or as payments of an assumed or retained liability. 

Section 13.02 Tax Gross Up. If notwithstanding the manner in which Tax indemnity payments and Tax Benefit payments
were reported, there is an adjustment to the Tax liability of a Company as a result of its receipt of a payment pursuant to this Agreement, such payment shall be appropriately adjusted so that the amount of such payment, reduced by the amount of all
Income Taxes payable with respect to the receipt thereof (but taking into account all correlative Tax Benefits resulting from the payment of such Income Taxes), shall equal the amount of the payment which the Company receiving such payment would
otherwise be entitled to receive pursuant to this Agreement. 
 Section 13.03 Interest Under This Agreement.
Anything herein to the contrary notwithstanding, to the extent one Company (“Indemnitor”) makes a payment of interest to another Company (“Indemnitee”) under this Agreement with respect to the period from the date
that the Indemnitee made a payment of Tax to a Tax Authority to the date that the Indemnitor reimbursed the Indemnitee for such Tax payment, the interest payment shall be treated as interest expense to the Indemnitor (deductible to the extent
provided by law) and as interest income by the Indemnitee (includible in income to the extent provided by law). The amount of the payment shall not be adjusted under Section 2.02 to take into account any associated Tax Benefit to the Indemnitor
or increase in Tax to the Indemnitee. 
 Section 14. Disagreements. The Companies mutually desire that friendly
collaboration will continue between them. Accordingly, they will try, and they will cause their respective Group members to try, to resolve in an amicable manner all disagreements and misunderstandings connected with their respective rights and
obligations under this Agreement, including any amendments hereto. In furtherance thereof, in the event of any dispute or disagreement (other than a High-Level Dispute) (a “Tax Advisor Dispute”) between any member of the Valero Group and
any member of the Corner Store Group as to the interpretation of any provision of this Agreement or the performance of obligations hereunder, the Tax departments of the Companies shall negotiate in good faith to resolve the Tax Advisor Dispute. If
such good faith negotiations do not resolve the Tax Advisor Dispute, then the matter, upon written request of either Company, will be referred for resolution to executives who hold, at a minimum, the office of Senior Vice President and/or General
Counsel (the “Senior Executives”), which executives will make a good faith effort to resolve the Tax Advisor Dispute pursuant to the procedures set forth in Section 4.2 of the Separation and Distribution Agreement. If the Senior
Executives do not agree to a resolution of a Tax Advisor Dispute within thirty (30) days after the reference of the Tax Advisor Dispute to it, then the matter will be referred to a Tax Advisor acceptable to each of the Companies. The Tax
Advisor may, in its discretion, obtain the services of any third-party appraiser, accounting firm or consultant that the Tax Advisor deems necessary to assist it in resolving such disagreement. The Tax Advisor shall furnish written notice to the
Companies of its resolution of any such Tax Advisor Dispute as soon as practical, but in any event no later than 45 days after its acceptance of the matter for resolution. Any such resolution by the Tax Advisor will be conclusive and binding on the
Companies. Following receipt of the 

  
 33 

 
Tax Advisor’s written notice to the Companies of its resolution of the Tax Advisor Dispute, the Companies shall each take or cause to be taken any action necessary to implement such
resolution of the Tax Advisor. In accordance with Section 16, each Company shall pay its own fees and expenses (including the fees and expenses of its representatives) incurred in connection with the referral of the matter to the Tax Advisor.
All fees and expenses of the Tax Advisor in connection with such referral shall be shared equally by the Companies. Any High-Level Dispute shall be resolved pursuant to the procedures set forth in Section 4.3 of the Separation and Distribution
Agreement. Nothing in this Section 14 will prevent either Company from seeking injunctive relief if any delay resulting from the efforts to resolve the Tax Advisor Dispute through the Senior Executives and the Tax Advisor (or any delay
resulting from the efforts to resolve any High-Level Dispute through the procedures set forth in Section 7.3 of the Separation and Distribution Agreement) could result in serious and irreparable injury to either Company. Notwithstanding
anything to the contrary in this Agreement, the Separation and Distribution Agreement or any Ancillary Agreement, Valero and Corner Store are the only members of their respective Group entitled to commence a dispute resolution procedure under this
Agreement, and each of Valero and Corner Store will cause its respective Group members not to commence any dispute resolution procedure other than through such party as provided in this Section 14. 

Section 15. Late Payments. Any amount owed by one party to another party under this Agreement which is not paid when due
shall bear interest at the Prime Rate plus two percent, compounded semiannually, from the due date of the payment to the date paid. To the extent interest required to be paid under this Section 15 duplicates interest required to be paid under
any other provision of this Agreement, interest shall be computed at the higher of the interest rate provided under this Section 15 or the interest rate provided under such other provision. 

Section 16. Expenses. Except as otherwise provided in this Agreement, each party and its Affiliates shall bear their own
expenses incurred in connection with preparation of Tax Returns, Tax Contests, and other matters related to Taxes under the provisions of this Agreement. 
 Section 17. General Provisions. 
 Section 17.01 Addresses and
Notices. Each party giving any notice required or permitted under this Agreement will give the notice in writing and use one of the following methods of delivery to the party to be notified, at the address set forth below or another
address of which the sending party has been notified in accordance with this Section 17.01: (a) personal delivery; (b) facsimile or telecopy transmission with a reasonable method of confirming transmission; (c) commercial
overnight courier with a reasonable method of confirming delivery; or (d) pre-paid, United States of America certified or registered mail, return receipt requested. Notice to a party is effective for purposes of this Agreement only if given as
provided in this Section 17.01 and shall be deemed given on the date that the intended addressee actually receives the notice. 

  
 34 

 If to Valero: 

Valero Energy Corporation 
 One Valero Way 
 San Antonio, Texas 78249 

Attention: General Counsel 
 If to Corner Store: 
 CST Brands, Inc. 

One Valero Way 

San Antonio, Texas 78249 
 Attention: General Counsel 
 A party may change the address for receiving notices under this
Agreement by providing written notice of the change of address to the other parties. 
 Section 17.02 Binding
Effect. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their successors and assigns. 
 Section 17.03 Waiver. The parties may waive a provision of this Agreement only by a writing signed by the party intended to be bound by the waiver. A party is not prevented from
enforcing any right, remedy or condition in the party’s favor because of any failure or delay in exercising any right or remedy or in requiring satisfaction of any condition, except to the extent that the party specifically waives the same in
writing. A written waiver given for one matter or occasion is effective only in that instance and only for the purpose stated. A waiver once given is not to be construed as a waiver for any other matter or occasion. Any enumeration of a party’s
rights and remedies in this Agreement is not intended to be exclusive, and a party’s rights and remedies are intended to be cumulative to the extent permitted by law and include any rights and remedies authorized in law or in equity.

 Section 17.04 Severability. If any provision of this Agreement is determined to be invalid, illegal or
unenforceable, the remaining provisions of this Agreement remain in full force, if the essential terms and conditions of this Agreement for each party remain valid, binding and enforceable. 

Section 17.05 Authority. Each of the parties represents to the other that (a) it has the corporate or other
requisite power and authority to execute, deliver and perform this Agreement, (b) the execution, delivery and performance of this Agreement have been duly authorized by all necessary corporate or other action, (c) it has duly and validly
executed and delivered this Agreement, and (d) this Agreement is a legal, valid and binding obligation, enforceable against it in accordance with its terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or other
similar laws affecting creditors’ rights generally and general equity principles. 
 Section 17.06 Further
Action. The parties shall execute and deliver all documents, provide all information, and take or refrain from taking action as may be necessary or 

  
 35 

 
appropriate to achieve the purposes of this Agreement, including the execution and delivery to the other parties and their Affiliates and representatives of such powers of attorney or other
authorizing documentation as is reasonably necessary or appropriate in connection with Tax Contests (or portions thereof) under the control of such other parties in accordance with Section 10. 

Section 17.07 Integration. This Agreement, together with each of the exhibits and schedules appended hereto,
constitutes the final agreement between the parties, and is the complete and exclusive statement of the parties’ agreement on the matters contained herein. All prior and contemporaneous negotiations and agreements between the parties with
respect to the matters contained herein are superseded by this Agreement, as applicable. In the event of any inconsistency between this Agreement and the Separation and Distribution Agreement, or any other agreements relating to the transactions
contemplated by the Separation and Distribution Agreement, with respect to matters addressed herein, the provisions of this Agreement shall control. 
 Section 17.08 Construction. The language in all parts of this Agreement shall in all cases be construed according to its fair meaning and shall not be strictly construed for or against
any party. The captions, titles and headings included in this Agreement are for convenience only, and do not affect this Agreement’s construction or interpretation. Unless otherwise indicated, all “Section” references in this
Agreement are to sections of this Agreement. 
 Section 17.09 No Double Recovery. No provision of this
Agreement shall be construed to provide an indemnity or other recovery for any costs, damages, or other amounts for which the damaged party has been fully compensated under any other provision of this Agreement or under any other agreement or action
at law or equity. Unless expressly required in this Agreement, a party shall not be required to exhaust all remedies available under other agreements or at law or equity before recovering under the remedies provided in this Agreement. 

Section 17.10 Counterparts. The parties may execute this Agreement in multiple counterparts, each of which constitutes
an original as against the party that signed it, and all of which together constitute one agreement. This Agreement is effective upon delivery of one executed counterpart from each party to the other party. The signatures of the parties need not
appear on the same counterpart. The delivery of signed counterparts by facsimile or email transmission that includes a copy of the sending party’s signature is as effective as signing and delivering the counterpart in person. 

Section 17.11 Governing Law. The internal laws of the State of Texas (without reference to its principles of conflicts
of law) govern the construction, interpretation and other matters arising out of or in connection with this Agreement and each of the exhibits and schedules hereto and thereto (whether arising in contract, tort, equity or otherwise). 

Section 17.12 Jurisdiction. If any dispute arises out of or in connection with this Agreement, except as expressly
contemplated by another provision of this Agreement, the parties irrevocably (and the parties will cause each other member of their respective Group to irrevocably) (a) consent and submit to the exclusive jurisdiction of federal and state
courts located in San Antonio, Texas, (b) waive any objection to that choice of forum based on venue or to the effect that the forum is not convenient, and (c) WAIVE TO THE FULLEST EXTENT PERMITTED BY LAW ANY RIGHT TO TRIAL OR ADJUDICATION
BY JURY. 

  
 36 

 Section 17.13 Amendment. Except as otherwise expressly provided herein
with respect to the Schedules hereto, the parties may amend this Agreement only by a written agreement signed by each party to be bound by the amendment and that identifies itself as an amendment to this Agreement. 

Section 17.14 Corner Store Subsidiaries. If, at any time, Corner Store acquires or creates one or more subsidiaries
that are includable in the Corner Store Group, they shall be subject to this Agreement and all references to the Corner Store Group herein shall thereafter include a reference to such subsidiaries. 

Section 17.15 Successors. This Agreement shall be binding on and inure to the benefit of any successor by merger,
acquisition of assets, or otherwise, to any of the parties hereto (including but not limited to any successor of Valero or Corner Store succeeding to the Tax attributes of either under Section 381 of the Code), to the same extent as if such
successor had been an original party to this Agreement. 
 Section 17.16 Injunctions. The parties acknowledge
that irreparable damage would occur in the event that any of the provisions of this Agreement were not performed in accordance with its specific terms or were otherwise breached. The parties hereto shall be entitled to an injunction or injunctions
to prevent breaches of the provisions of this Agreement and to enforce specifically the terms and provisions hereof in any court having jurisdiction, such remedy being in addition to any other remedy to which they may be entitled at law or in
equity. 
 Section 17.17 Additional Indemnification Matters. THE RELEASES AND INDEMNIFICATION OBLIGATIONS OF
THE PARTIES IN THIS AGREEMENT ARE EXPRESSLY INTENDED, AND SHALL OPERATE AND BE CONSTRUED, TO APPLY EVEN WHERE THE LOSSES OR LIABILITIES FOR WHICH THE RELEASE AND/OR INDEMNITY ARE GIVEN ARE CAUSED, IN WHOLE OR IN PART, BY THE SOLE, JOINT, JOINT AND
SEVERAL, CONCURRENT, CONTRIBUTORY, ACTIVE OR PASSIVE NEGLIGENCE OR THE STRICT LIABILITY OR FAULT OF THE PARTY BEING RELEASED OR INDEMNIFIED. 

  
 37 

 IN WITNESS WHEREOF, each party has caused this Agreement to be executed on its behalf by a
duly authorized officer on the date first set forth above. 
  

									
	“Valero”	 		 	“Corner Store”
			
	VALERO ENERGY CORPORATION, a Delaware corporation	 		 	CST BRANDS, INC., a Delaware corporation
					
	By:	 	 /s/ Lawrence M. Schmeltekopf
	 		 	By:	 	 /s/ Kimberly S. Bowers

	Name:	 	Lawrence M. Schmeltekopf	 		 	Name:	 	Kimberly S. Bowers
	Title:	 	Vice President and Controller	 		 	Title:	 	Chief Executive Officer & President

 [Signature Page to Tax Matters Agreement] 

 Schedule 4.04(a) 

Specified Valuations 
 The
following appraisals prepared by Deloitte: 
  

	 	1)	Fair Market Value Analysis of the Enterprise Value of the Corner Store Business 

 

	 	2)	Fair Market Value Analysis of the Enterprise Value and Certain Assets of the Canadian Retail Operations of the Corner Store Business 

  
 Schedule
4.04(a) 
 Page 1 of 1 

 Schedule 6.01(b) 

Tax Benefit Adjustment Exclusions 
 None 

  
 Schedule
6.01(b) 
 Page 1 of 1 

 Schedule 7.02(a) 

Transactions Intended to be Tax-Free 
 All actions contemplated by the Restructuring Steps Memorandum in Annex A to the Separation and Distribution Agreement to effect the Tax Free Status and to ensure that Canadian withholding tax will not
apply to any of the steps taken to effect the Separation. 

  
 Schedule
7.02(a) 
 Page 1 of 1 

 Schedule 10.02(i) 

Specified Tax Contest 
 Sigmor
Corporation: 
 2006 Louisiana Corporation Income Tax and 2007 Louisiana Corporation Franchise Tax 

Form CIFT-620SD 

  
 Schedule
10.02(i) 
 Page 1 of 1Employee Matters Agreement

 Exhibit 10.4 
 EXECUTION VERSION 
 EMPLOYEE MATTERS AGREEMENT 

BY AND BETWEEN 

VALERO ENERGY CORPORATION 
 AND 
 CST BRANDS, INC. 

DATED AS OF APRIL 29, 2013 

 TABLE OF CONTENTS 

 

									
	 ARTICLE I GENERAL PRINCIPLES FOR ALLOCATION OF LIABILITIES
	  	 	1	  
				
		 	 Section 1.1
	 	 General Principles
	  	 	1	  
				
		 	 Section 1.2
	 	 Service Credit
	  	 	3	  
				
		 	 Section 1.3
	 	 Transition Services
	  	 	3	  
				
		 	 Section 1.4
	 	 No Duplication or Acceleration of Benefits
	  	 	3	  
		
	 ARTICLE II DEFINITIONS
	  	 	4	  
				
		 	 Section 2.1
	 	 Definitions
	  	 	4	  
				
		 	 Section 2.2
	 	 Interpretation
	  	 	8	  
		
	 ARTICLE III ASSIGNMENT OF EMPLOYEES
	  	 	8	  
				
		 	 Section 3.1
	 	 Active Employees
	  	 	8	  
				
		 	 Section 3.2
	 	 Employee Records
	  	 	10	  
				
		 	 Section 3.3
	 	 Non-Solicitation
	  	 	10	  
		
	 ARTICLE IV EQUITY AND INCENTIVE COMPENSATION PLANS
	  	 	10	  
				
		 	 Section 4.1
	 	 Stock Options
	  	 	10	  
				
		 	 Section 4.2
	 	 Restricted Stock Awards
	  	 	11	  
				
		 	 Section 4.3
	 	 Performance Share Awards
	  	 	11	  
				
		 	 Section 4.4
	 	 Liabilities for Settlement of Awards
	  	 	11	  
				
		 	 Section 4.5
	 	 Bonus and Incentive Payments
	  	 	12	  
				
		 	 Section 4.6
	 	 Tax Reporting and Withholding for Equity-Based Awards
	  	 	12	  
		
	 ARTICLE V U.S. QUALIFIED RETIREMENT PLANS
	  	 	12	  
				
		 	 Section 5.1
	 	 Defined Benefit Plan
	  	 	12	  
				
		 	 Section 5.2
	 	 Defined Contribution Plans
	  	 	13	  
		
	 ARTICLE VI NONQUALIFIED DEFERRED COMPENSATION PLANS
	  	 	14	  
				
		 	 Section 6.1
	 	 Assets and Liabilities
	  	 	14	  
				
		 	 Section 6.2
	 	 Participation; Distributions
	  	 	14	  
				
		 	 Section 6.3
	 	 Administration
	  	 	15	  
		
	 ARTICLE VII WELFARE PLANS
	  	 	15	  
				
		 	 Section 7.1
	 	 Transition Period; Establishment of Corner Store Welfare Plans
	  	 	15	  
				
		 	 Section 7.2
	 	 Transitional Matters Under Corner Store Welfare Plans
	  	 	15	  
				
		 	 Section 7.3
	 	 Waiver of Conditions or Restrictions
	  	 	17	  
				
		 	 Section 7.4
	 	 Insurance Contracts
	  	 	17	  

  
 i 

									
		 	 Section 7.5
	 	 Third-Party Vendors
	  	 	17	  
				
		 	 Section 7.6
	 	 Workers’ Compensation
	  	 	17	  
		
	 ARTICLE VIII BENEFIT ARRANGEMENTS AND OTHER MATTERS
	  	 	18	  
				
		 	 Section 8.1
	 	 Termination of Participation
	  	 	18	  
				
		 	 Section 8.2
	 	 Accrued Time Off
	  	 	18	  
				
		 	 Section 8.3
	 	 Leaves of Absence
	  	 	18	  
		
	 ARTICLE IX CANADIAN EMPLOYEES
	  	 	18	  
				
		 	 Section 9.1
	 	 General Principles
	  	 	18	  
				
		 	 Section 9.2
	 	 Transfer and Assumption
	  	 	18	  
				
		 	 Section 9.3
	 	 Corner Store Liabilities
	  	 	19	  
				
		 	 Section 9.4
	 	 Valero Liabilities
	  	 	20	  
				
		 	 Section 9.5
	 	 Benefit Plans
	  	 	20	  
				
		 	 Section 9.6
	 	 Indemnification
	  	 	21	  
				
		 	 Section 9.7
	 	 Treatment of Equity Awards Canadian Employees
	  	 	21	  
		
	 ARTICLE X GENERAL PROVISIONS
	  	 	22	  
				
		 	 Section 10.1
	 	 Preservation of Rights to Amend
	  	 	22	  
				
		 	 Section 10.2
	 	 Fiduciary Matters
	  	 	22	  
				
		 	 Section 10.3
	 	 Entire Agreement
	  	 	22	  
				
		 	 Section 10.4
	 	 Binding Effect; No Third-Party Beneficiaries; Assignment
	  	 	22	  
				
		 	 Section 10.5
	 	 Amendment; Waivers
	  	 	22	  
				
		 	 Section 10.6
	 	 Remedies Cumulative
	  	 	23	  
				
		 	 Section 10.7
	 	 Notices
	  	 	23	  
				
		 	 Section 10.8
	 	 Counterparts
	  	 	23	  
				
		 	 Section 10.9
	 	 Severability
	  	 	23	  
				
		 	 Section 10.10
	 	 Governing Law
	  	 	23	  
				
		 	 Section 10.11
	 	 Dispute Resolution
	  	 	23	  
				
		 	 Section 10.12
	 	 Performance
	  	 	24	  
				
		 	 Section 10.13
	 	 Construction
	  	 	24	  
				
		 	 Section 10.14
	 	 Effect if Distribution Does Not Occur
	  	 	24	  
				
		 	 Section 10.15
	 	 Additional Indemnification Matters
	  	 	24	  

  
 ii 

 EMPLOYEE MATTERS AGREEMENT 

THIS EMPLOYEE MATTERS AGREEMENT, made and entered into effective as of April 29, 2013 (this “Agreement”), is by and
between Valero Energy Corporation, a Delaware corporation (“Valero”), and CST Brands, Inc., a Delaware corporation and wholly owned subsidiary of Valero (“Corner Store”). Valero and Corner Store are also referred to
in this Agreement individually as a “Party” and collectively as the “Parties.” Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in Article II. 

RECITALS 

WHEREAS, Valero has determined that it would be appropriate, desirable and in the best interests of Valero and the shareholders of Valero
to separate the Corner Store Business from Valero; 
 WHEREAS, Valero and Corner Store have entered into the Separation and
Distribution Agreement, dated as of April 29, 2013 (the “Separation Agreement”), in connection with the separation of the Corner Store Business from Valero and the Distribution of Corner Store Common Stock to shareholders of
Valero; 
 WHEREAS, the Separation Agreement also provides for the execution and delivery of certain other agreements, including
this Agreement, in order to facilitate and provide for the separation of Corner Store and its subsidiaries from Valero; and 

WHEREAS, in order to ensure an orderly transition under the Separation Agreement, it will be necessary for the Parties to allocate
between them certain Assets and Liabilities with respect to certain employee compensation and benefit plans and programs, and to address certain other employment matters. 
 NOW, THEREFORE, in consideration of the foregoing and the covenants and agreements set forth below and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged,
and intending to be legally bound hereby, the Parties hereby agree as follows: 
 ARTICLE I 

GENERAL PRINCIPLES FOR ALLOCATION OF LIABILITIES 
 Section 1.1 General Principles. 
 (a) Except as otherwise provided in
this Agreement, the Separation Agreement or any Ancillary Agreement, effective as of the Distribution Date, one or more members of the Corner Store Group (as determined by Corner Store) shall assume or continue the sponsorship of, and shall pay,
perform and discharge, and no Valero Entity shall have any Liability with respect to or under, the following agreements, obligations and Liabilities, and Corner Store shall indemnify each Valero Entity, and the officers, directors, and employees of
each Valero Entity, and hold them harmless with respect to such agreements, obligations and Liabilities: 
 (i)
any and all wages, salaries, incentive compensation (as the same may be modified by this Agreement), commissions, bonuses, and any other employee compensation or benefits payable to or on behalf of any Corner Store Group Employees prior to, on or
after the Distribution Date, without regard to when such wages, salaries, incentive compensation, commissions, bonuses, or other employee compensation or benefits are or may have been earned; 

 (ii) any and all immigration-related, visa, work application or similar
rights, obligations and Liabilities related to any Corner Store Group Employees; and 
 (iii) except as
expressly provided in the Separation Agreement, any and all Liabilities and obligations whatsoever with respect to claims made by or on behalf of Corner Store Group Employees in connection with any employee benefit plan, program or policy not
retained or assumed by any Valero Entity pursuant to this Agreement, the Separation Agreement or any Ancillary Agreement, including any such Liabilities relating to actions or omissions of or by any Corner Store Entity or any officer, director,
employee or agent thereof prior to, on or after the Distribution Date. 
 (b) Except as otherwise provided in this Agreement,
effective as of the Distribution Date, no Corner Store Entity shall have any Liability for, and Valero shall indemnify each Corner Store Entity, and the officers, directors, and employees of each Corner Store Entity, and hold them harmless with
respect to the following agreements, obligations and Liabilities: 
 (i) any and all wages, salaries, incentive
compensation, commissions, bonuses, and any other employee compensation or benefits payable to or on behalf of any Valero Group Employee or Former Employee prior to, on or after the Distribution Date, without regard to when such wages, salaries,
incentive compensation, commissions, bonuses, or other employee compensation or benefits are or may have been earned; 
 (ii) any and all immigration-related, visa, work application or similar rights, obligations and Liabilities related to any Valero Group Employee or Former Employee; and 

(iii) any and all Liabilities and obligations whatsoever with respect to, claims made by or on behalf of Valero Group
Employees or Former Employees in connection with any employee benefit plan, program or policy not retained or assumed by any Corner Store Entity pursuant to this Agreement, the Separation Agreement or any Ancillary Agreement, including such
Liabilities relating to actions or omissions of or by any Valero Entity or any officer, director, employee or agent thereof on, prior to or after the Distribution Date. 

  
 2 

 (c) Notwithstanding the foregoing provisions of this Section 1.1(a): 

(i) if a Corner Store Group Employee becomes an employee of the Valero Group after the Distribution Date, the
indemnification obligations of Corner Store in Section 1.1(a), as they relate to such Employee, shall only apply to Liabilities arising prior to such individual becoming an employee of the Valero Group after the Distribution Date; and

 (ii) if a Valero Group Employee or Former Employee becomes an employee of the Corner Store Group after the
Distribution Date, the indemnification obligations of Valero in Section 1.1(b), as they relate to such employee, shall only apply to Liabilities arising prior to such individual becoming an employee of the Corner Store Group after the
Distribution Date. 
 Section 1.2 Service Credit. 

(a) Service for Eligibility, Vesting, and Benefit Purposes. Except as otherwise provided in any other provision of this
Agreement, from and after the Distribution Date through August 31, 2013, the Corner Store Benefit Plans shall, and Corner Store shall cause each Corner Store Entity to, recognize each Corner Store Group Employee’s and Post Distribution
Transferred Employee’s full service with any Valero Entity, to the same extent such service would be credited if it had been performed for a Corner Store Entity, solely for purposes of eligibility, vesting and determination of level of benefits
under any such Corner Store Benefit Plan. 
 (b) Evidence of Prior Service. Notwithstanding anything to the
contrary, but subject to applicable Law, upon reasonable request by either Party (the “Requesting Party”), the other Party (the “Providing Party”) will provide to the Requesting Party copies of any records available
to the Providing Party to document the service, plan participation and membership of former Employees of the Providing Party who are then Employees of the Requesting Party, and will cooperate with the Requesting Party to resolve any discrepancies or
obtain any missing data for purposes of determining benefit eligibility, participation, vesting and calculation of benefits with respect to any such Employee. 
 Section 1.3 Transition Services. The Parties acknowledge that the Valero Group or the Corner Store Group may provide administrative services for certain of the other Party’s benefit
programs for a transitional period under the terms of the Transition Services Agreements. The Parties agree to enter into a business associate agreement (if required by HIPAA or other applicable health information privacy Laws) in connection with
such Transition Services Agreements. 
 Section 1.4 No Duplication or Acceleration of Benefits. Notwithstanding
anything to the contrary in this Agreement, the Separation Agreement or any Ancillary Agreement, no participant in the Corner Store 401(k) Plan, Corner Store Welfare Plans or other Corner Store Benefit Plans shall receive benefits to the extent that
receipt of such benefits would result in duplication of benefits provided by the corresponding Valero Benefit Plan or arrangement. Furthermore, unless expressly provided for in this Agreement, the Separation Agreement or in

  
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any Ancillary Agreement or required by applicable Law, no provision in this Agreement shall be construed to create any right to accelerate vesting or entitlements under any compensation or
Benefit Plan on the part of any Valero Group Employee, Former Employee, Corner Store Group Employee, or Post Distribution Transferred Employee. 
 ARTICLE II 
 DEFINITIONS 

Section 2.1 Definitions. As used in this Agreement, the following terms shall have the meanings set forth in this
Section 2.1: 
 “Adjusted Valero Option” has the meaning set forth in Section 4.1. 

“Adjusted Valero PSA” has the meaning set forth in Section 4.3. 

“Adjusted Valero RSA” has the meaning set forth in Section 4.2. 

“Affiliate” has the meaning set forth in the Separation Agreement. 

“Agreement” means this Employee Matters Agreement, together with all Schedules hereto and all amendments, modifications,
and changes hereto entered into pursuant to Section 10.5. 
 “Ancillary Agreements” has the meaning set
forth in the Separation Agreement. 
 “Assets” has the meaning set forth in the Separation Agreement.

 “Benefit Plan” means any contract, agreement, policy, practice, program, plan, trust, commitment or
arrangement providing for benefits, perquisites or compensation of any nature to any Employee, or to any family member, dependent, or beneficiary of any such Employee, including pension plans, thrift plans, supplemental pension plans and welfare
plans, and contracts, agreements, policies, practices, programs, plans, trusts, commitments and arrangements providing for terms of employment, fringe benefits, severance benefits, change in control protections or benefits, travel and accident,
life, disability and accident insurance, tuition reimbursement, travel reimbursement, vacation, sick, personal or bereavement days, leaves of absences and holidays; provided, however, the term “Benefit Plan” does not include
any workers compensation or similar insurance plans, programs or policies. 
 “Canada Tax Act” means the
Income Tax Act (Canada). 
 “Canadian Corner Store Employees” has the meaning set forth in
Section 9.2. 
 “Canadian Employees” has the meaning set forth in Section 9.1. 

“Canadian Holder” has the meaning set forth in Section 9.7. 

“Canadian Valero Employees” has the meaning set forth in Section 9.4. 

  
 4 

 “COBRA” means the U.S. Consolidated Omnibus Budget Reconciliation Act of
1985, as codified at Section 601 et seq. of ERISA and at Section 4980B of the Code. 
 “Code” has the
meaning set forth in the Separation Agreement. 
 “Corner Store” has the meaning set forth in the preamble to
this Agreement. 
 “Corner Store Benefit Plan” means any Benefit Plan sponsored or maintained by a Corner Store
Entity immediately following the Distribution Date. 
 “Corner Store Business” has the meaning set forth in the
Separation Agreement. 
 “Corner Store Common Stock” means the common stock, par value $0.01 per share, of
Corner Store. 
 “Corner Store Entity” means any member of the Corner Store Group. 

“Corner Store Group” has the meaning set forth in the Separation Agreement. 

“Corner Store Group Employees” has the meaning given such term in Section 3.1(a). 

“Corner Store Pension Participants” has the meaning set forth in Section 5.1. 

“Corner Store Welfare Plan” means any Welfare Plan sponsored or maintained by any one or more members of the Corner
Store Group immediately after the Distribution Date. 
 “Corner Store Welfare Plan Participants” has the
meaning set forth in Section 7.1. 
 “CST Brands, Inc. 401(k) Plan” has the meaning set forth in
Section 5.2(a). 
 “CST Brands, Inc. 401(k) Plan Beneficiaries” has the meaning set forth in
Section 5.2(b). 
 “Distribution” has the meaning set forth in the Separation Agreement. 

“Distribution Date” has the meaning set forth in the Separation Agreement. 

“Employee” means any Valero Group Employee, Former Employee or Corner Store Group Employee. 

“ERISA” means the U.S. Employee Retirement Income Security Act of 1974, as amended, and the regulations promulgated
thereunder. 
 “FICA” has the meaning set forth in Section 3.1(f). 

“Former Employee” means a former employee of the Valero Group whose employment with the Valero Group was terminated
before the Distribution Date (and who is not actively employed by the Valero Group as of the Distribution Date), regardless of whether or not he or she provided services to the Corner Store Business while employed. 

  
 5 

 “FUTA” has the meaning set forth in Section 3.1(f). 

“HIPAA” means the Health Insurance Portability and Accountability Act of 1996, as amended, and the regulations
promulgated thereunder. 
 “IRS” means the Internal Revenue Service. 

“Law” has the meaning set forth in the Separation Agreement. 

“Liabilities” has the meaning set forth in the Separation Agreement. 

“LTD” has the meaning set forth in Section 7.2(a)(iii). 

“NYSE” means the New York Stock Exchange. 
 “Party” or “Parties” has the meaning set forth in the preamble to this Agreement. 
 “Person” has the meaning set forth in the Separation Agreement. 

“Post Distribution Transferred Employee” means any Valero Group Employee who leaves to become an employee of any Corner
Store Entity after the Distribution Date and prior to September 1, 2013. 
 “Record Date” has the meaning
set forth in the Separation Agreement. 
 “Regular Trading Hours” means the period beginning at 9:30 A.M. New
York City time and ending at 4:00 P.M. New York City time. 
 “Securities Act” has the meaning set forth in the
Separation Agreement. 
 “Separation Agreement” has the meaning set forth in the recitals to this Agreement.

 “STD” has the meaning set forth in Section 7.2(a)(iv). 

“Subsidiary” has the meaning set forth in the Separation Agreement. 

“Trading Day” means the period of time during any given calendar day, commencing with the determination of the opening
price on the NYSE and ending with the determination of the closing price on the NYSE, in which trading and settlement in shares of Valero Common Stock is permitted on the NYSE. 

“Transfer Date” means, with respect to any Post Distribution Transferred Employee, the date such Post Distribution
Transferred Employee becomes an employee of a Corner Store Entity. 

  
 6 

 “Transition Date” has the meaning set forth in Section 7.1.

 “Transition Services Agreements” has the meaning set forth in the Separation Agreement. 

“U.S.” means the United States of America. 
 “Valero” has the meaning set forth in the preamble to this Agreement. 
 “Valero Adjusted Exercise Price” has the meaning set forth in Section 4.1(a). 
 “Valero Benefit Plan” means any Benefit Plan sponsored or maintained by a Valero Entity immediately prior to the Distribution Date. 

“Valero Common Stock” means the common stock, par value $0.01 per share, of Valero. 

“Valero Entity” means any member of the Valero Group. 

“Valero Equity Plan” means any equity compensation plan sponsored or maintained by Valero immediately prior to the
Distribution Date, including the Valero Energy Corporation 2011 Omnibus Stock Incentive Plan, the Valero Energy Corporation 2005 Omnibus Stock Incentive Plan, the Valero Energy Corporation 2003 Employee Stock Incentive Plan and the Valero Energy
Corporation Restricted Stock Plan for Non-Employee Directors. 
 “Valero 401(k) Plans” means the Valero Energy
Corporation Savings Plan and the Valero Energy Corporation Thrift Plan. 
 “Valero 401(k) Plan Beneficiaries”
has the meaning set forth in Section 5.2(c)(i). 
 “Valero Group” has the meaning set forth in the
Separation Agreement. 
 “Valero Group Employee” means any individual who is employed by a Valero Entity
immediately after the Distribution Date. 
 “Valero Nonqualified Plans” means the Valero Energy Corporation
Excess Pension Plan, the Valero Energy Corporation Excess Thrift Plan, the Valero Energy Corporation Deferred Compensation Plan, the Valero Energy Corporation Supplemental Executive Retirement Plan and the Ultramar Diamond Shamrock Corporation
Non-Qualified 401(k) Plan. 
 “Valero Options” means exercisable and non-exercisable options to purchase shares
of Valero Common Stock granted pursuant to any of the Valero Equity Plans. 
 “Valero Pension Plan” has the
meaning set forth in Section 5.1. 

  
 7 

 “Valero Post-Distribution Stock Value” means the simple average of the
volume weighted average per share price of Valero Common Stock trading on the NYSE during Regular Trading Hours on the first four Trading Days following the Distribution Date. 
 “Valero Pre-Distribution Stock Value” means the simple average of the volume weighted average per share price of Valero Common Stock trading “regular way with due bills” on the
NYSE during Regular Trading Hours on the Distribution Date and the three immediately preceding Trading Days. 
 “Valero
Price Ratio” means the quotient obtained by dividing the Valero Post-Distribution Stock Value by the Valero Pre-Distribution Stock Value. 
 “Valero PSAs” means performance share awards issued under any of the Valero Equity Plans. 
 “Valero RSAs” means restricted stock awards issued under any of the Valero Equity Plans. 
 “Valero Share Ratio” means the quotient obtained by dividing the Valero Pre-Distribution Stock Value by the Valero Post-Distribution Stock Value. 

“Valero Welfare Plan” means any Welfare Plan sponsored or maintained by any one or more members of the Valero Group as
of immediately prior to the Distribution Date. 
 “Welfare Plan” means, where applicable, a “welfare
plan” (as defined in Section 3(1) of ERISA) or a “cafeteria plan” under Section 125 of the Code, and any benefits offered thereunder, and any other plan offering health benefits (including medical, prescription drug, dental,
vision, and mental health and substance abuse), disability benefits, or life, accidental death and disability, and business travel insurance, pre-tax premium conversion benefits, dependent care assistance programs, employee assistance programs, paid
time off programs, contribution funding toward a health savings account, flexible spending accounts, or cashable credits; provided, however, the term “Welfare Plan” does not include any workers compensation or similar
insurance plans, programs or policies. 
 Section 2.2 Interpretation. The provisions of Section 10.16 of the
Separation Agreement are hereby incorporated by incorporated by reference. 
 ARTICLE III 

ASSIGNMENT OF EMPLOYEES 
 Section 3.1 Active Employees. 
 (a) Corner Store Group
Employees. Except as otherwise set forth in this Agreement, effective not later than immediately prior to the Distribution Date, Valero or its applicable Subsidiary shall have taken such actions as are necessary to ensure that each
individual who is intended to be an employee of the Corner Store Group following the Distribution Date (collectively, the “Corner Store Group Employees”) is employed by a Corner

  
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Store Entity. Each of the Parties agrees to execute, and to seek to have the applicable employees execute, such documentation, if any, as may be necessary to reflect such assignments and
transfers. 
 (b) Valero Group Employees. Except as otherwise set forth in this Agreement, effective not later
than immediately prior to the Distribution Date, Valero or its applicable Subsidiary shall have taken such actions as are necessary to ensure that each individual who is intended to be an employee of the Valero Group following the Distribution Date
(collectively, the “Valero Group Employees”) is employed by a Valero Entity. Each of the Parties agrees to execute, and to seek to have the applicable employees execute, such documentation, if any, as may be necessary to reflect
such assignments and transfers. 
 (c) At-Will Status. Notwithstanding the above or any other provision of this
Agreement (except as provided under Article IX), nothing in this Agreement shall create any obligation on the part of any Valero Entity or any Corner Store Entity to (i) continue the employment of any Employee or permit the return from a leave
of absence for any period following the date of this Agreement or the Distribution Date (except as required by applicable Law) or (ii) change the employment status of any Employee from “at will,” to the extent such Employee is an
“at will” employee under applicable Law. 
 (d) Severance. The Parties acknowledge and agree that the
Distribution and the assignment, transfer or continuation of the employment of Employees as contemplated by this Section 3.1 shall not entitle any Employee to any severance payments or severance benefits from any member of the Valero Group or
the Corner Store Group. 
 (e) Not a Change of Control/Change in Control. The Parties acknowledge and agree that
neither the consummation of the Distribution nor any transaction in connection with the Distribution shall be deemed a “change of control,” “change in control,” or term of similar import for purposes of any Benefit Plan of any
Valero Entity or Corner Store Entity. 
 (f) Payroll and Related Taxes. With respect to the portion of the tax
year ending on and including the day prior to the Distribution Date or Transfer Date, as applicable, Valero will (i) be responsible for all payroll obligations, tax withholding and reporting obligations and (ii) furnish a Form W-2 or
similar earnings statement, to all Corner Store Group Employees and Post Distribution Transferred Employees, if any, who were employed by any member of the Valero Group during such period. With respect to the remaining portion of such tax year,
Corner Store will (i) be responsible for all payroll obligations, tax withholding, and reporting obligations regarding Corner Store Group Employees and Post Distribution Transferred Employees and (ii) furnish a Form W-2 or similar earnings
statement to all Corner Store Group Employees and Post Distribution Transferred Employees. With respect to each affected Corner Store Group Employee and Post Distribution Transferred Employee, Valero and Corner Store shall, and shall cause their
respective Affiliates to (to the extent permitted by applicable Law and practicable) (i) treat Corner Store (or the applicable Corner Store Entity) as a “successor employer” and Valero (or the applicable Valero Entity) as a
“predecessor,” within the meaning of Sections 3121(a)(1) and 3306(b)(1) of the Code, to the extent appropriate, for purposes of taxes imposed under the United States Federal Insurance Contributions Act, as amended

  
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“(FICA”), or the United States Federal Unemployment Tax Act, as amended (“FUTA”), (ii) cooperate with each other to avoid, to the extent possible, the
restart of FICA and FUTA upon or following the Distribution Date with respect to each such Corner Store Group Employee or following the Transfer Date with respect to each Post Distribution Transferred Employee for the tax year during which the
Distribution Date or Transfer Date occurs, and (iii) file tax returns, exchange wage payment information, and report wage payments made by the respective predecessor and successor employer on separate IRS Forms W-2 or similar earnings
statements to each such Corner Store Group Employee for the tax year in which the Distribution Date or Transfer Date occurs, in a manner provided in Section 4.02(1) of Revenue Procedure 2004-53. 

Section 3.2 Employee Records. Valero shall provide to Corner Store copies of any and all employment records and information
(including, but not limited to, any Form I-9, Form W-2 or other IRS forms) with respect to the Corner Store Group Employees or Post Distribution Transferred Employees and other records reasonably required by Corner Store to enable Corner Store to
properly carry out its obligations under this Agreement. Such provision of records and information generally shall occur as soon as administratively practicable on or after the Distribution Date or Transfer Date, as applicable. With respect to any
non-electronic copies of employee records and information, Valero shall maintain such employee records and information consistent with existing document retention polices and they will be made available to Corner Store upon request. Each Party shall
permit the other Party reasonable access to employee records and information, to the extent reasonably necessary for such accessing Party to carry out its obligations hereunder. Corner Store shall bear or reimburse Valero for all out of pocket
expenses associated with accessing any files stored at third party facilities, and Valero shall have no liability for any loss or damage to files caused (in connection with such access by Corner Store) by third parties or events outside of
Valero’s reasonable control. 
 Section 3.3 Non-Solicitation. Each party agrees that, for a period of one year
from the Distribution Date, such party will not solicit for employment any employee of any other party; provided, however, that this Section 3.3 shall not prohibit: (a) generalized solicitations which are not directed to
specific individuals or employees of the other party (for the avoidance of doubt, including solicitations resulting from actions initiated by employees through the Valero internal posting system); (b) solicitations of persons whose employment
was involuntarily terminated by the other party; or (c) solicitations of persons employed by a Valero Entity, subject to prior written (which, for purposes hereof, includes email) notification to the SVP of Human Resources for the Valero Group,
or his designee. 
 ARTICLE IV 
 EQUITY AND INCENTIVE COMPENSATION PLANS 
 Section 4.1 Stock Options.
Each Valero Option that is outstanding as of the Distribution Date shall remain an option to purchase Valero Common Stock issued under the applicable Valero Equity Plan (each such option, an “Adjusted Valero Option”). Each Adjusted
Valero Option shall be subject to the same terms and conditions after the Distribution Date as the terms and conditions applicable to the corresponding Valero Option immediately prior to the Distribution Date; provided, however, that,
with respect to any Adjusted Valero Option held by a Corner Store Group Employee, continued employment by the Corner Store Group shall be treated as continued employment with the Valero Group for purposes of vesting and exercisability; and
provided further, that from and after the Distribution Date: 
 (a) the per-share exercise price of each such
Adjusted Valero Option shall be equal to the product of (i) the per-share exercise price of the corresponding Valero Option immediately prior to the Distribution Date multiplied by (ii) the Valero Price Ratio, rounded up to the nearest
whole hundredth of a cent (the “Valero Adjusted Exercise Price”); and 
 (b) the number of shares of Valero
Common Stock subject to each such Adjusted Valero Option shall be equal to the product of (i) the number of shares of Valero Common Stock subject to the corresponding Valero Option immediately prior to the Distribution Date multiplied by
(ii) the Valero Share Ratio, with any fractional share rounded down to the nearest whole share. 

  
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 Section 4.2 Restricted Stock Awards. Each Valero RSA outstanding as of the
Distribution Date shall be adjusted by multiplying the number of shares of Valero Common Stock subject to such Valero RSA by the Valero Share Ratio (each such adjusted Valero RSA, an “Adjusted Valero RSA”). If the resulting product
includes a fractional share, the number of shares of Valero Common Stock subject to such Adjusted Valero RSA shall be rounded to the nearest whole share. Each Adjusted Valero RSA shall be subject to the same terms and conditions after the
Distribution Date as the terms and conditions applicable to the corresponding Valero RSA immediately prior to the Distribution Date. Each Valero RSA that is held by a Corner Store Group Employee shall become vested as of immediately prior to the
Record Date, and each Valero RSA that is held by a Post Distribution Transferred Employee shall become vested as of immediately prior to the Transfer Date. 
 Section 4.3 Performance Share Awards. Each Valero PSA outstanding as of the Distribution Date shall be adjusted by multiplying the number of shares of Valero Common Stock subject to such
Valero PSA by the Valero Share Ratio (each such adjusted Valero PSA, an “Adjusted Valero PSA”). If the resulting product includes a fractional share, the number of shares of Valero Common Stock subject to such Adjusted Valero PSA
shall be rounded to the nearest whole share. Each Adjusted Valero PSA shall be adjusted to reflect the change in value to Valero Common Stock after the Distribution Date; provided, however, that, with respect to any Valero PSA held by
a Corner Store Group Employee, continued employment by the Corner Store Group shall not be treated as continued employment with the Valero Group in the case of any Valero PSA held by a Corner Store Group Employee and, therefore, all Valero PSA held
by a Corner Store Group Employee on the Distribution Date shall be forfeited. 
 Section 4.4 Liabilities for Settlement
of Awards. 
 (a) Settlement of Valero Options. Valero shall be responsible for all Liabilities associated
with Valero Options (regardless of the holder of such awards) including any option exercise, share delivery, registration or other obligations related to the exercise of the Valero Options. 

  
 11 

 (b) Settlement of Valero RSAs. Valero shall be responsible for all Liabilities
associated with Valero RSAs including any share delivery, registration or other obligations related to the settlement of the Valero Restricted Stock awards. 
 (c) Settlement of Outstanding Valero PSAs. Valero shall be responsible for all Liabilities associated with Valero PSAs, including any share delivery, registration or other obligations
related to the settlement of Valero PSAs. 
 Section 4.5 Bonus and Incentive Payments. For the avoidance of doubt,
(i) the Valero Group shall be solely responsible for funding, paying, and discharging all obligations relating to any annual cash incentive awards that any Valero Group Employee is eligible to receive under any Valero annual bonus plans with
respect to payments made beginning, at or after the Distribution Date, and no Corner Store Entity shall have any obligations with respect thereto, and (ii) the Corner Store Group shall be solely responsible for funding, paying, and discharging
all obligations relating to any annual cash incentive awards that any Corner Store Group Employee or Post Distribution Transferred Employee is eligible to receive under any Corner Store Group annual bonus and other short-term incentive compensation
plans with respect to payments made beginning at or after the Distribution Date, and no Valero Entity shall have any obligations with respect thereto; provided; however, as of no later than 30 days following the Distribution Date or Transfer Date,
as applicable, the Valero Group shall make a cash payment based upon one-hundred percent (100%) of bonus target for the period of time of participation from January 1, 2013 to the time immediately prior to the Distribution Date or Transfer
Date, as applicable, to the Corner Store Group in respect of bonuses accrued in respect of Corner Store Group Employees or Post Distribution Employees under the Valero Energy Corporation Annual Bonus Plan and the Valero Energy Corporation Annual
Incentive Plan for Named Executive Officers as of the Distribution Date or Transfer Date, as applicable. Such prorated cash payment will not be subject to future adjustment. 
 Section 4.6 Tax Reporting and Withholding for Equity-Based Awards. Valero (or one of its Subsidiaries) shall be responsible for (a) all income, payroll, or other tax reporting related to
income of Employees from awards in respect of Valero Common Stock, and (b) remitting applicable tax withholdings for such income to each applicable taxing authority; it being understood that in taking such actions Valero shall be acting as
agent for Corner Store. Notwithstanding the foregoing, the terms of this Section 4.6 shall not limit any obligations of Valero or Corner Store with respect to the subject matter hereof under the Transition Services Agreements. Valero and
Corner Store acknowledge and agree that the Parties shall cooperate with each other and with third-party providers to effectuate withholding and remittance of taxes, as well as required tax reporting, in a timely, efficient, and appropriate manner.

 ARTICLE V 
 U.S. QUALIFIED RETIREMENT PLANS 
 Section 5.1 Defined Benefit Plan.
The Valero Group shall retain all Assets and all Liabilities arising out of or relating to the Valero Energy Corporation Pension Plan (“Valero Pension Plan”). Immediately prior to the Distribution Date or Transfer Date, each Corner Store
Group Employee or Post Distribution Transferred Employee, respectively, who is a participant in 

  
 12 

 
the Valero Pension Plan (the “Corner Store Pension Participants”) shall cease to actively participate in the Valero Pension Plan. As of the Distribution Date or Transfer Date, as
applicable, each such Corner Store Pension Participant shall be treated as a terminated vested participant under the Valero Pension Plan. 
 Section 5.2 Defined Contribution Plans. 
 (a) Establishment of
the Corner Store 401(k) Plan. No later than the Distribution Date, Corner Store shall, or shall cause another Corner Store Entity to, establish a defined contribution plan and trust for the benefit of Corner Store Group Employees (the
“CST Brands, Inc. 401(k) Plan”). Corner Store shall be responsible for taking all necessary, reasonable, and appropriate action to establish, maintain, and administer the CST Brands, Inc. 401(k) Plan so that it is qualified under
Section 401(a) of the Code and that the related trust thereunder is exempt under Section 501(a) of the Code. Corner Store (acting directly or through its Affiliates) shall be responsible for any and all Liabilities and other obligations
with respect to the CST Brands, Inc. 401(k) Plan. 
 (b) Transfer of Valero 401(k) Plan Assets. Not later than
thirty (30) days following the Distribution Date (or such later time as mutually agreed by the Parties), Valero shall cause the accounts (including any outstanding loan balances) in the Valero 401(k) Plans attributable to Corner Store Group
Employees who will participate in the CST Brands, Inc. 401(k) Plan (the “CST Brands, Inc. 401(k) Plan Beneficiaries”) and all of the Assets in the Valero 401(k) Plans related thereto to be transferred in kind or (at the election of
the trustee of the applicable Valero 401(k) Plan) in cash to the CST Brands, Inc. 401(k) Plan, and Corner Store shall cause the CST Brands, Inc. 401(k) Plan to accept such transfer of accounts and underlying Assets and, effective as of the date of
such transfer, to assume and to fully perform, pay, and discharge, all obligations of the Valero 401(k) Plans relating to the accounts of the CST Brands, Inc. 401(k) Plan Beneficiaries (to the extent the Assets related to those accounts are actually
transferred from the Valero 401(k) Plans to the CST Brands, Inc. 401(k) Plan). The transfer of Assets shall be conducted in accordance with Section 414(l) of the Code, Treasury Regulation Section 1.414(1)-1, and Section 208 of ERISA.

 (c) Treatment of Corner Store Common Stock and Valero Common Stock. 

(i) Corner Store Common Stock Fund; Corner Store Common Stock Held in Valero 401(k) Plan Accounts. The CST
Brands, Inc. 401(k) Plan will provide, effective as of the Distribution Date: (1) for the establishment of a Corner Store Common Stock fund; (2) that such Corner Store Common Stock fund shall receive a transfer of and hold all shares of
Corner Store Common Stock distributed in connection with the Distribution in respect of Valero Common Stock held in Valero 401(k) Plan accounts of CST Brands, Inc. 401(k) Plan Beneficiaries; and (3) that, following the Distribution Date,
contributions made by or on behalf of such CST Brands, Inc. 401(k) Plan Beneficiaries may be allocated to the Corner Store Common Stock fund. Shares of Corner Store Common Stock distributed in connection with the Distribution in respect of shares of
Valero Common Stock held in Valero 401(k) Plan accounts of Valero Group Employees or Former Employees who participate in the Valero 401(k) Plans (the “Valero  

  
 13 

 
401(k) Plan Beneficiaries”) shall be deposited in a Corner Store Common Stock fund under the Valero 401(k) Plans, and Valero 401(k) Plan Beneficiaries will be prohibited from
increasing their holdings in such Corner Store Common Stock fund under the Valero 401(k) Plans, unless the fund is transferred to a self-directed brokerage account, and may elect to liquidate their holdings in such Corner Store Common Stock fund and
invest those monies in any other investment fund offered under the Valero 401(k) Plans. Any shares of Corner Store Common Stock held in Valero 401(k) Plan accounts of Corner Store Group Employees shall be transferred in kind to the trust underlying
the CST Brands, Inc. 401(k) Plan pursuant to Section 5.2(b). 
 (ii) Valero Common Stock in CST
Brands, Inc. 401(k) Plan Accounts. Without limiting the generality of the provisions of Section 5.2(b), shares of Valero Common Stock held in Valero 401(k) Plan accounts of CST Brands, Inc. 401(k) Plan Beneficiaries prior to the
Distribution Date shall be transferred in kind to a Valero Common Stock Fund under the CST Brands, Inc. 401(k) Plan pursuant to Section 5.2(b). CST Brands, Inc. 401(k) Plan Beneficiaries will be prohibited from increasing their holdings in
Valero Common Stock under such Valero Common Stock Fund, unless the fund is transferred to a self-directed brokerage account, and may elect to liquidate their holdings in such Valero Common Stock Fund and invest those monies in any other investment
fund offered under the CST Brands, Inc. 401(k) Plan. 
 (d) Tax Qualified Status. Corner Store will take all steps
and make any necessary filings with the IRS to establish and maintain the CST Brands, Inc. 401(k) Plan so that it is qualified under Section 401(a) of the Code and the related trust is tax-exempt under Section 501(a) of the Code, including
seeking and obtaining a favorable determination letter from the IRS as to such qualification. Furthermore, no later than thirty (30) days prior to the Distribution Date, Valero and Corner Store (each acting directly or through their respective
Affiliates) shall, to the extent necessary, file IRS Form 5310-A regarding the transfer of Assets and Liabilities from the Valero 401(k) Plans to the CST Brands, Inc. 401(k) Plan as discussed in this Article V. 

ARTICLE VI 

NONQUALIFIED DEFERRED COMPENSATION PLANS 
 Section 6.1 Assets and Liabilities. The Valero Group shall retain all Assets and all Liabilities arising out of or relating to the Valero Nonqualified Plans, and shall make payments to all
Corner Store Group Employees or Post Distribution Transferred Employees who are participants in the Valero Nonqualified Plans (the “Nonqualified Plan Participants”) in accordance with the terms of the Valero Nonqualified Plans.

 Section 6.2 Participation; Distributions. The Nonqualified Plan Participants shall cease accruing benefits under
the Nonqualified Plans as of the Distribution Date or Transfer Date, as applicable. Valero and Corner Store acknowledge that none of the transactions contemplated by the Separation Agreement or any Ancillary Agreement will trigger a payment or
distribution of compensation under any of the Valero Nonqualified Plans for any Nonqualified Plan Participant and, consequently, that the payment or distribution of any compensation to which any Nonqualified Plan Participant is entitled under any of
the Valero Nonqualified Plans 

  
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will occur upon such Nonqualified Plan Participant’s separation from service from the Corner Store Group or at such other time as provided in the applicable Valero Nonqualified Plan or such
Nonqualified Plan Participant’s deferral election. 
 Section 6.3 Administration. As soon as reasonably
practicable following the Distribution Date, Valero shall provide to Corner Store a list of all Nonqualified Plan Participants. Following the Distribution Date, Corner Store shall provide, or shall cause to be provided, to Valero notice of the
separation from service (within the meaning of Section 409A of the Code) of any Nonqualified Plan Participant upon or as soon as practicable following any such separation. 
 ARTICLE VII 
 WELFARE PLANS 

Section 7.1 Transition Period; Establishment of Corner Store Welfare Plans. In accordance with the terms of the Transition
Services Agreements, from the Distribution Date until January 1, 2014 (the “Transition Date”), the Corner Store Entities will be included as participating employers to the Valero Welfare Plans set forth on Exhibit A. On
or prior to the Transition Date, Corner Store shall, or shall cause another Corner Store Entity to, establish and adopt Corner Store Welfare Plans which will provide welfare benefits to each Corner Store Group Employee or Post Distribution
Transferred Employee who is transferred from the Valero Group to the Corner Store Group who is a participant in any of the Valero Welfare Plans (and their eligible spouses and dependents, as the case may be) (collectively, the “Corner Store
Welfare Plan Participants”). Coverage and benefits under the Corner Store Welfare Plans shall then be provided to the Corner Store Welfare Plan Participants on an uninterrupted basis under the newly established Corner Store Welfare Plans.
Corner Store Welfare Plan Participants shall cease to be eligible for coverage under the Valero Welfare Plans at the Transition Date. 
 Section 7.2 Transitional Matters Under Corner Store Welfare Plans. 

(a) Treatment of Claims Incurred. 
 (i) Liability for Claims. With respect to unpaid covered claims incurred prior to the Distribution Date or Transfer Date, as applicable, by any Corner Store Welfare Plan Participant under
any Valero Welfare Plans, including claims that are self-insured and claims that are fully insured through third-party insurance, Valero shall retain and be responsible for the payment for such claims or shall cause such Valero Welfare Plans to
fully perform, pay and discharge all such claims, as the case may be, and except as provided in Section 7.2(a)(iv), no Corner Store Entity shall be responsible for any Liability with respect to any such claims. Claims incurred by Corner Store
Welfare Plan Participants from the Distribution Date through the Transition Date shall be governed by the terms of the Transition Services Agreements. 
 (ii) Claims Incurred. For purposes of this Section 7.2(a), a claim or expense is deemed to be incurred (A) with respect to medical (including continuous hospitalization), dental,
vision and/or prescription drug benefits, upon the rendering of health services giving rise to such claim or expense; (B) with respect to life 

  
 15 

 
insurance, accidental death and dismemberment and business travel accident insurance, upon the occurrence of the event giving rise to such claim or expense; and (C) with respect to short-
and long-term disability benefits, upon the date of an individual’s disability, as determined by the disability benefit insurance carrier or claim administrator, giving rise to such claim or expense. 

(iii) Long Term Disability Benefits. Employees of the Corner Store Group who are receiving Long Term
Disability (“LTD”) benefits immediately prior to the Distribution Date shall have their employment transferred to a Valero Entity effective immediately prior to the Distribution Date and shall be Valero Group Employees for all
purposes of this Agreement. If any such Employee is released to return to work or becomes no longer entitled to receive LTD benefits on or after the Distribution Date, and provided that Corner Store is notified of such fact, Corner Store agrees to
consider if there are any positions within the Corner Store Group for which such Employee may be qualified, but Corner Store shall have no obligation to hire such Employee. 

(iv) Short Term Disability Benefits. With respect to those Corner Store Group Employees who are receiving
Short Term Disability (“STD”) benefits immediately prior to the Distribution Date, or Post Distribution Transferred Employees who are receiving STD benefits immediately prior to the applicable Transfer Date, Corner Store will be
responsible for continuing to provide such benefits until such time as those STD benefits terminate in accordance with the terms of the Valero STD plan (subject to the relevant provisions of the Transition Services Agreement pursuant to which a
Valero Entity will administer such benefits for Corner Store up to the Transition Date). In the event any such Corner Store Group Employee, after the Distribution Date, or Post Distribution Transferred Employee, after the applicable Transfer Date,
becomes eligible to transition directly from receiving STD benefits to receiving LTD benefits, Valero will provide such LTD benefits but will not be obligated to provide any other employment-related benefits (including any other Welfare Plan
benefits) to such Corner Store Group Employee or Post Distribution Transferred Employee. 
 (b) COBRA. The Valero
Group shall be responsible for the COBRA claims incurred by Employees (and their qualifying beneficiaries) prior to the Distribution Date, regardless of whether payments for such claims are made or due after the Transition Date. At and after the
Distribution Date, Corner Store shall assume all requirements under COBRA with respect to all Corner Store Group Employees or Post Distribution Transferred Employees (and their qualifying beneficiaries) who, as of the day prior to the Distribution
Date or Transfer Date, as applicable, were covered under a Valero Benefit Plan pursuant to COBRA or who have a COBRA qualifying event (as defined in Section 4980B of the Code) prior to the Distribution Date or Transfer Date. Notwithstanding the
foregoing, the terms of this Section 7.2(b) shall not limit any obligations of Valero or Corner Store with respect to the subject matter hereof under the Transition Services Agreements. 

(c) Retiree Medical. The Valero Group will provide retiree medical benefits to those Corner Store Group Employees or Post
Distribution Transferred Employees who are 

  
 16 

 
eligible for the Valero Group retiree medical benefits immediately prior to the Transition Date. The eligible Corner Store Group Employees and Post Distribution Transferred Employees will be
provided a one-time opportunity to enroll in the retiree medical benefits on the Transition Date in the retiree medical plan in effect as of the Transition Date. In the event a Corner Store Group Employee or Post Distribution Transferred Employee
does not enroll as of the Transition Date, such retiree medical benefits will be forfeited. 
 Section 7.3 Waiver of
Conditions or Restrictions. Unless prohibited by applicable Law, the Corner Store Welfare Plans will waive all limitations as to preexisting conditions, exclusions, service conditions, waiting period limitations or evidence of
insurability requirements that would otherwise be applicable to the Corner Store Welfare Plan Participant following the Transition Date to the extent that such Employee had previously satisfied such limitation under the corresponding Valero Welfare
Plan. 
 Section 7.4 Insurance Contracts. To the extent any Valero Welfare Plan is funded through the purchase of an
insurance contract or is subject to any stop loss contract, Valero and Corner Store will cooperate and use their commercially reasonable efforts to replicate such insurance contracts for Corner Store (except to the extent changes are required under
applicable state insurance Laws or filings by the respective insurers) and to maintain any pricing discounts or other preferential terms for both Valero and Corner Store for a reasonable term. Neither Party shall be liable for failure to obtain such
insurance contracts, pricing discounts, or other preferential terms for the other Party. Each Party shall be responsible for any new or additional premiums, charges, or administrative fees that such Party may incur with respect to its insurance
coverage pursuant to this Section 7.4. 
 Section 7.5 Third-Party Vendors. Except as provided below, to the
extent any Valero Welfare Plan is administered by a third-party vendor, Valero and Corner Store will cooperate and use their commercially reasonable efforts to replicate any contract with such third-party vendor for Corner Store and to maintain any
pricing discounts or other preferential terms for both Valero and Corner Store for a reasonable term. Neither Party shall be liable for failure to obtain such pricing discounts or other preferential terms for the other Party. Each Party shall be
responsible for any new or additional premiums, charges, or administrative fees that such Party may incur with respect to its contracts pursuant to this Section 7.5. 
 Section 7.6 Workers’ Compensation. With respect to claims for workers compensation in the United States, (a) the Valero Group shall be responsible for claims in respect of
(i) Valero Group Employees and Former Employees, whether occurring prior to, on or following the Distribution Date and (ii) Corner Store Group Employees occurring prior to the Distribution Date, and (b) the Corner Store Group shall be
responsible for all claims in respect of Corner Store Group Employees and Post Distribution Transferred Employees occurring on or following the Distribution Date or Transfer Date, respectively. For purposes of this Section 7.6, claims shall be
deemed to be incurred upon the occurrence of the injury giving rise to such claim. 

  
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 ARTICLE VIII 
 BENEFIT ARRANGEMENTS AND OTHER MATTERS 
 Section 8.1 Termination of
Participation. Except as otherwise provided under this Agreement or in the Transition Services Agreements, effective as of the Distribution Date or Transfer Date, Corner Store Group Employees and Post Distribution Transferred Employees,
respectively, shall cease participating in any Valero Benefit Plan. 
 Section 8.2 Accrued Time Off. Corner Store
shall recognize and assume all Liability for all unused vacation, holiday, sick leave, flex days, personal days and paid-time off and other time-off benefits that accrued on or prior to the Distribution Date (with respect to Corner Store Group
Employees) or the Transfer Date (with respect to Post Distribution Transferred Employees), and Corner Store shall credit each Corner Store Group or Post Distribution Transferred Employee with such accrual. Within thirty (30) days of the
Distribution Date or Transfer Date, as applicable, the Valero Group will calculate the accrued, used and unused vacation entitlement of the Corner Store Group and Post Distribution Transferred Employees as of the time immediately prior to the
Distribution Date or Transfer Date, as applicable, except for any carry-over amounts from calendar year 2012 to 2013, and shall make a cash payment to the Corner Store Group in respect of the vacation entitlement of the Corner Store Group Employee
or Post Distribution Transferred Employee, as applicable. 
 Section 8.3 Leaves of Absence. Corner Store will
continue to apply the appropriate leave of absence policies applicable to inactive Corner Store Group Employees and Post Distribution Transferred Employees who are on an approved leave of absence as of the Distribution Date or Transfer Date, as
applicable. Subject to Section 7.2, leaves of absence taken by Corner Store Group or Post Distribution Transferred Employees prior to the Distribution Date or Transfer Date, as applicable, shall be deemed to have been taken as employees of a
Corner Store Entity. 
 ARTICLE IX 
 CANADIAN EMPLOYEES 
 Section 9.1 General Principles. Except as
explicitly set forth in this Article IX, Valero Group Employees and Corner Store Group Employees who are resident in Canada (“Canadian Employees”) or otherwise are subject to non-U.S. Law and their related benefits and obligations
shall be treated in the same manner as the Valero Group Employees and Corner Store Group Employees who are resident of the United States are treated under this Agreement, mutatis mutandis. All actions taken with respect to Canadian Employees
in connection with the Distribution will be accomplished in accordance with applicable Law and custom in each of the applicable jurisdictions. 
 Section 9.2 Transfer and Assumption. Effective prior to the Distribution Date, all Canadian Employees who are identified as transferring employees in the Corner Store Group’s internal
records (“Canadian Corner Store Employees”) will be transferred to, and all employment-related Liabilities with respect to Canadian Corner Store Employees will be assumed by, a member of the Corner Store Group, on the same terms and
conditions of 

  
 18 

 
employment as those enjoyed under Canadian Corner Store Employees’ respective employment agreements immediately prior to the Distribution Date. Where such transfer does not automatically
occur by operation of law, all such Employees will be offered employment with a member of the Corner Store Group on the same terms and conditions of employment as those enjoyed under the applicable agreements immediately prior to the Distribution
Date and, those Employees who accept such offer of employment will be transferred to and assumed and employed by a member of the Corner Store Group on such terms and conditions and be considered Canadian Corner Store Employees. From and after the
Distribution Date, Corner Store or its applicable Affiliate(s)) shall be bound, to the exclusion of Valero, by the terms and conditions of the employment agreements applicable to such Canadian Corner Store Employees, as successor employer. Corner
Store does not guarantee that all terms and conditions of employment for all Canadian Corner Store Employees will remain unchanged after a period of 12 months following the Distribution Date. 

Section 9.3 Corner Store Liabilities. Without limiting the generality of the provisions in Section 9.1 and 9.2, Corner
Store shall be responsible for and remain liable for, and shall indemnify each Valero Entity, and the officers, directors, and employees of each Valero Entity, and hold them harmless with respect to: 

(a) all wages, salaries, bonuses, vacation pay, overtime, commissions, incentive payments, profit sharing awards, insurance benefits and
any other compensation payable to or with respect to Canadian Corner Store Employees, including without limitation associated payroll burdens such as income tax, pension plans, workers’ compensation, employment insurance and similar
withholdings or remittances, without regard to when such wages, salaries, bonuses, vacation pay, overtime, commissions, incentive payments, profit sharing awards, insurance benefits and any other compensation are or may have been earned; 

(b) all severance costs, termination pay, notice of termination, pay in lieu of notice, change of control awards or damages for wrongful
dismissal or any other obligations or liabilities in connection with the termination of employment of Canadian Corner Store Employees after the Distribution Date; 
 (c) any and all liability for claims of Canadian Corner Store Employees under applicable workers’ compensation legislation and all liabilities with respect to reemployment obligations pursuant to
such legislation and related to claims of Canadian Corner Store Employees for the period before, on or after the Distribution Date; 
 (d) any and all workers’ compensation assessments, penalties, fines, levies, charges, surcharges or other amounts which may be assessed with respect to the Canadian Corner Store Employees for the
period before, on or after the Distribution Date; 
 (e) any and all liability for health and welfare benefits in respect of the
Canadian Corner Store Employees (and their spouse, dependents and beneficiaries) as well as all pension benefits for the period before or after the Distribution Date; and 
 (f) all past, present and future claims, penalties, assessments, demands, actions, causes of action, damages, loss, costs and liability relating to litigation by or relating to Canadian Corner Store
Employees, in connection with any event or circumstance before, on or after the Distribution Date. 

  
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 Section 9.4 Valero Liabilities. Without limiting the generality of the
provisions in Section 9.1 and 9.2, and subject to Section 9.6, Valero shall be responsible for and remain liable for, and shall indemnify each Corner Store Entity, and the officers, directors, and employees of each Corner Store Entity, and
hold them harmless with respect to: 
 (a) all wages, salaries, bonuses, vacation pay, overtime, commissions, incentive
payments, profit sharing awards, insurance benefits and any other compensation payable to or with respect to with respect to all Canadian Employees who do not become Canadian Corner Store Employees (“Canadian Valero Employees”),
including without limitation associated payroll burdens such as income tax, pension plans, workers’ compensation, employment insurance and similar withholdings or remittances, without regard to when such wages, salaries, bonuses, vacation pay,
overtime, commissions, incentive payments, profit sharing awards, insurance benefits and any other compensation are or may have been earned; 
 (b) all severance costs, termination pay, notice of termination, pay in lieu of notice, change of control awards or damages for wrongful dismissal or any other obligations or liabilities in connection
with the termination of employment of Canadian Valero Employees before, on or after the Distribution Date; 
 (c) any and all
liability for claims of Canadian Valero Employees under applicable workers’ compensation legislation and all liabilities with respect to reemployment obligations pursuant to such legislation and related to claims of Canadian Valero Employees
for the period before, on or after the Distribution Date; 
 (d) any and all workers’ compensation assessments, penalties,
fines, levies, charges, surcharges or other amounts which may be assessed with respect to the Canadian Valero Employees for the period before, on or after the Distribution Date; 

(e) any and all liability for health and welfare benefits in respect of the Canadian Valero Employees (and their respective spouses,
dependents and beneficiaries) as well as all pension benefits for the period before, on or after the Distribution Date; and 

(f) all past, present and future claims, penalties, assessments, demands, actions, causes of action, damages, loss, costs and liability
relating to litigation by or relating to Canadian Valero Employees, in connection with any event or circumstance before, on or after the Distribution Date. 
 Section 9.5 Benefit Plans. Corner Store shall subscribe to and maintain for a minimal period of 12 months following the Distribution Date, benefit plans for the Canadian Corner Store Employees
with terms, conditions and coverage identical to the terms, conditions and coverage of the benefit plans listed in Schedule 9.5 attached hereto. These benefit plans shall be subscribed to with the same insurers or third party contractors as the ones
identified in Schedule 9.5. 

  
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 Section 9.6 Indemnification. Corner Store agrees to assume and to be responsible
for, and shall indemnify each Valero Entity, and the officers, directors, and employees of each Valero Entity, and hold them harmless with respect to, any claims asserted against any of them after the Distribution Date by any Canadian Corner Store
Employees alleging that the transfer of their employment from a member of the Valero Group to a member of the Corner Store Group in connection with the Separation constituted a constructive dismissal of their employment, or equivalent or similar
allegation. 
 Section 9.7 Treatment of Equity Awards Canadian Employees. For the purposes of
this Agreement a Valero Option or Valero RSA, as applicable, is held by a “Canadian Holder” if such Valero Option or Valero RSA is held by a Person who is a resident of Canada for the purposes of Canada Tax Act or by a Person who was
granted such Valero Option or Valero RSA in respect of, in the course of, or by virtue of employment in Canada. In respect of any Valero Option or Valero RSA held by a Canadian Holder, notwithstanding the other provisions of Sections 4.1 or 4.2, as
applicable, the following rules apply: 
 (a) Timing for Canadian Holders. The adjustment or conversion of each
Valero Option or Valero RSA held by a Canadian Holder shall be effected with such modifications as may be required such that any action under Sections 4.1 or 4.2 which is called for at or as of the Distribution Date shall be taken or completed
immediately prior to the Distribution Date; 
 (b) Application of Canada Tax Act. It is intended that the
provisions of subsection 7(1.4) of the Canada Tax Act apply to the adjustment or conversion of each Valero Option or Valero RSA held by a Canadian Holder; 
 (c) Greater Certainty. For greater certainty, in respect of the application of subsection 7(1.4) of the Canada Tax Act to the adjustment or conversion of any Valero Option or Valero RSA held
by a Canadian Holder, the computation of each amount under Sections 4.1 or 4.2, as applicable, shall be undertaken in respect of each such Valero Option or Valero RSA such that, for purposes of subsection 7(1.4) of the Canada Tax Act, 

(x) the amount by which the total value immediately after the Distribution Date of the rights of the Canadian Holder to
acquire securities of Valero or Corner Store, as applicable, exceeds of the total of the amount payable to acquire such securities 
 does not exceed 
 (y) the amount by which the total value
immediately before the Distribution Date of the rights of the Canadian Holder to acquire securities of Valero under the applicable Valero Option or Valero RSA exceeds of the total of the amount payable to acquire such securities 

and Valero or Corner Store, as applicable, shall take all such steps and shall make all such adjustments effective as of the Distribution
Date as are necessary to ensure that the conversions or adjustments pursuant to Sections 4.1 or 4.2 are in compliance with the provisions of subsection 7(1.4) of the Canada Tax Act. 

  
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 ARTICLE X 
 GENERAL PROVISIONS 
 Section 10.1 Preservation of Rights to Amend. The
rights of each Valero Entity and each Corner Store Entity to amend, waive, or terminate any plan, arrangement, agreement, program, or policy referred to herein shall not be limited in any way by this Agreement. 

Section 10.2 Fiduciary Matters. Valero and Corner Store each acknowledges that actions required to be taken pursuant to this
Agreement may be subject to fiduciary duties or standards of conduct under ERISA or other applicable Law, and no Party shall be deemed to be in violation of this Agreement if it fails to comply with any provisions hereof based upon its good-faith
determination (as supported by advice from counsel experienced in such matters) that to do so would violate such a fiduciary duty or standard. Each Party shall be responsible for taking such actions as are deemed necessary and appropriate to comply
with its own fiduciary responsibilities and shall fully release and indemnify the other Party for any Liabilities caused by the failure to satisfy any such responsibility. 
 Section 10.3 Entire Agreement. This Agreement, together with the documents referenced herein (including the Separation Agreement, the Ancillary Agreements and the plans and agreements
referenced herein), constitutes the entire agreement and understanding among the Parties with respect to the subject matter hereof and supersedes all prior written and oral and all contemporaneous oral agreements and understandings with respect to
the subject matter hereof. To the extent any provision of this Agreement conflicts with the provisions of the Separation Agreement, the provisions of this Agreement shall be deemed to control with respect to the subject matter hereof. 

Section 10.4 Binding Effect; No Third-Party Beneficiaries; Assignment. This Agreement shall inure to the benefit of and be
binding upon the Parties and their respective successors and permitted assigns. Except as otherwise expressly provided in this Agreement, this Agreement is solely for the benefit of the Parties and should not be deemed to confer upon any third
parties any remedy, claim, Liability, reimbursement, cause of action, or other right in excess of those existing without reference to this Agreement. Nothing in this Agreement is intended to amend any employee benefit plan or affect the applicable
plan sponsor’s right to amend or terminate any employee benefit plan pursuant to the terms of such plan. The provisions of this Agreement are solely for the benefit of the Parties, and no current or former Employee, officer, director, or
independent contractor or any other individual associated therewith shall be regarded for any purpose as a third-party beneficiary of this Agreement. This Agreement may not be assigned by any Party, except with the prior written consent of the other
Parties. 
 Section 10.5 Amendment; Waivers. No change or amendment may be made to this Agreement except by an
instrument in writing signed on behalf of each of the Parties. Any Party may, at any time, (i) extend the time for the performance of any of the obligations or other acts 

  
 22 

 
of another Party, (ii) waive any inaccuracies in the representations and warranties of another Party contained herein or in any document delivered pursuant hereto, and (iii) waive
compliance by another Party with any of the agreements, covenants, or conditions contained herein. Any such extension or waiver shall be valid only if set forth in an instrument in writing signed by the Party to be bound thereby. No failure or delay
on the part of any Party in the exercise of any right hereunder shall impair such right or be construed to be a waiver of, or acquiescence in, any breach of any representation, warranty, covenant, or agreement contained herein, nor shall any single
or partial exercise of any such right preclude other or further exercises thereof or of any other right. 
 Section 10.6
Remedies Cumulative. All rights and remedies existing under this Agreement or the Schedules attached hereto are cumulative to, and not exclusive of, any rights or remedies otherwise available. 

Section 10.7 Notices. Unless otherwise expressly provided herein, all notices, claims, certificates, requests, demands and
other communications hereunder shall be made or given in accordance with the provisions of Section 10.5 of the Separation Agreement. 
 Section 10.8 Counterparts. This Agreement, including the Schedules hereto and the other documents referred to herein, may be executed in multiple counterparts, each of which when executed
shall be deemed to be an original but all of which together shall constitute one and the same agreement. 
 Section 10.9
Severability. If any term or other provision of this Agreement or the Schedules attached hereto is determined by a non-appealable decision by a court, administrative agency, or arbitrator to be invalid, illegal, or incapable of being enforced
by any rule of Law or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal substance of the transactions contemplated hereby is not affected in any
manner materially adverse to any Party. Upon such determination that any term or other provision is invalid, illegal, or incapable of being enforced, the court, administrative agency, or arbitrator shall interpret this Agreement so as to effect the
original intent of the Parties as closely as possible in an acceptable manner to the end that transactions contemplated hereby are fulfilled to the fullest extent possible. If any sentence in this Agreement is so broad as to be unenforceable, the
provision shall be interpreted to be only so broad as is enforceable. 
 Section 10.10 Governing Law. This Agreement
(and any claims or disputes arising out of or related hereto or thereto or to the transactions contemplated hereby and thereby or to the inducement of any party to enter herein and therein, whether for breach of contract, tortious conduct, or
otherwise and whether predicated on common law, statute, or otherwise) shall be governed by and construed and interpreted in accordance with the Laws of the State of Texas, irrespective of the choice of laws principles of the State of Texas,
including all matters of validity, construction, effect, enforceability, performance, and remedies. 
 Section 10.11
Dispute Resolution. The dispute resolution procedures set forth in Article IV of the Separation Agreement shall apply to any dispute, controversy or claim (whether 

  
 23 

 
sounding in contract, tort or otherwise) that arises out of or relates to this Agreement, any breach or alleged breach hereof, the transactions contemplated hereby (including all actions taken in
furtherance of the transactions contemplated hereby on or prior to the date hereof), or the construction, interpretation, enforceability, or validity hereof. 
 Section 10.12 Performance. Each of Valero and Corner Store shall cause to be performed, and hereby guarantees the performance of, all actions, agreements and obligations set forth herein to be
performed by any Valero Entity and any Corner Store Entity, respectively. The Parties each agree to take such further actions and to execute, acknowledge, and deliver, or to cause to be executed, acknowledged, and delivered, all such further
documents as are reasonably requested by the other for carrying out the purposes of this Agreement or of any document delivered pursuant to this Agreement. 
 Section 10.13 Construction. This Agreement shall be construed as if jointly drafted by the Parties and no rule of construction or strict interpretation shall be applied against any Party.

 Section 10.14 Effect if Distribution Does Not Occur. Notwithstanding anything in this Agreement to the contrary,
if the Separation Agreement is terminated prior to the Distribution Date, this Agreement shall be of no further force and effect. 
 Section 10.15 Additional Indemnification Matters. THE RELEASES AND INDEMNIFICATION OBLIGATIONS OF THE PARTIES IN THIS AGREEMENT ARE EXPRESSLY INTENDED, AND SHALL OPERATE AND BE
CONSTRUED, TO APPLY EVEN WHERE THE LOSSES OR LIABILITIES FOR WHICH THE RELEASE AND/OR INDEMNITY ARE GIVEN ARE CAUSED, IN WHOLE OR IN PART, BY THE SOLE, JOINT, JOINT AND SEVERAL, CONCURRENT, CONTRIBUTORY, ACTIVE OR PASSIVE NEGLIGENCE OR THE STRICT
LIABILITY OR FAULT OF THE PARTY BEING RELEASED OR INDEMNIFIED. 
 [ Signatures of the Parties on Next Page ] 

  
 24 

 IN WITNESS WHEREOF, the Parties have caused this Agreement to be executed in their names by
a duly authorized officer as of the date first written above. 
  

					
	VALERO ENERGY CORPORATION
		
	By:	 	 /s/ R. Michael Crownover

			
		 	Name:	 	R. Michael Crownover
			
		 	Title:	 	Senior Vice President
	
	CST BRANDS, INC.
		
	By:	 	 /s/ Kimberly S. Bowers

			
		 	Name:	 	Kimberly S. Bowers
			
		 	Title:	 	Chief Executive Officer & President

 [Signature Page to Employee Matters Agreement] 

 EXHIBIT A 
 VALERO WELFARE PLANS 
  

	•	 	 Valero Flex Plan 

  

	 	•	 	 Medical Aetna 

  

	 	•	 	 Medical Kaiser 

  

	 	•	 	 Medical Starbridge 

  

	 	•	 	 Prescription Express Scripts 

  

	 	•	 	 Dental Aetna 

  

	 	•	 	 Vision VSP 

  

	 	•	 	 Vision UHC 

  

	 	•	 	 Aetna Flexible Spending Accounts - Medical and Dependent Care 

 

	 	•	 	 MetLife - Basic and Term Life Insurance 

  

	 	•	 	 MetLife - Survivor Income 

  

	 	•	 	 MetLife - Dependent Life 

  

	 	•	 	 Chubb - AD&D 

  

	 	•	 	 Chubb - Occupational AD&D 

  

	 	•	 	 Chubb - Business Travel Accident 

  

	 	•	 	 AFLAC Critical Illness 

  

	 	•	 	 ARAG Legal Plan 

  

	 	•	 	 CNA Long-term Care 

  

	•	 	 Valero Short-term Leave Programs 

  

	•	 	 LifeBalance - EAP 

  

	•	 	 Vacation 

  
 Exhibit A -
Page 1 

 SCHEDULE 9.5 
 CANADIAN BENEFIT PLANS 
  

	•	 	 Financière Sun Life: Insurance Policy = # 50983 

 

	•	 	 Financière Sun Life: Management Agreement = # 25283 

 

	•	 	 Financière Sun Life: Excess of Loss Contract = # 25183 

 

	•	 	 Financière Sun Life: Savings Plan Agreement = # 66757-G (RRSP), # 66755-G (DPSP), # 66756-G (ESP) 

 

	•	 	 Financière Sun Life: Trust Agreement 

  

	•	 	 Financière Sun Life: Fees and Services Agreement 

 

	•	 	 Financière Sun Life: Pension Fund Agreement 

  

	•	 	 Ace Ina: DMA Insurance Policy = # AB 30079401, OE 30079401, BT 30079401 

 

	•	 	 Shepell FGI: Employee Assistance Program 

  

	•	 	 Philips Hager & North: Management Fees Agreement for Bond Funds 

 

	•	 	 Connor, Clark & Lunn: Management Fees Agreement for Balanced Funds and for Canadian Equity Funds 

  
 Schedule 9.5 -
Page 1

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