Document:

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                                                                 EXHIBIT 10.7(a)

                                                                  EXECUTION COPY

                               FIRST AMENDMENT TO
                      AMENDED AND RESTATED CREDIT AGREEMENT

          FIRST AMENDMENT, dated as of August 18, 2005 (this "Amendment"), to
the AMENDED AND RESTATED CREDIT AGREEMENT, dated as of April 28, 2005 (as
amended, supplemented or otherwise modified in writing from time to time, the
"Credit Agreement"), among MAPCO EXPRESS, INC., a Delaware corporation ("MAPCO
Express"), and MAPCO FAMILY CENTERS, INC., a Delaware corporation ("MAPCO
Family"), the several banks and other financial institutions or entities from
time to time parties thereto (the "Lenders"), LEHMAN BROTHERS INC., as advisor,
sole lead arranger and sole bookrunner (in such capacity, the "Arranger"),
SUNTRUST BANK, as syndication agent (in such capacity, the "Syndication Agent"),
BANK LEUMI USA, as co-administrative agent (in such capacity, the
"Co-Administrative Agent"), and LEHMAN COMMERCIAL PAPER INC., as administrative
agent (in such capacity, the "Administrative Agent").

                                   WITNESSETH:

          WHEREAS, MAPCO Express, MAPCO Family and the Lenders are parties to
the Credit Agreement;

          WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make certain loans and other extensions of credit to MAPCO Express and MAPCO
Family;

          WHEREAS, on June 24, 2005, MAPCO Family merged into and with MAPCO
Express, and MAPCO Express was the surviving entity (the "Borrower");

          WHEREAS, the Borrower has requested that the Lenders make certain
amendments to the Credit Agreement; and

          WHEREAS, the Lenders agree to make such amendments solely upon the
terms and conditions provided for in this Amendment;

          NOW, THEREFORE, in consideration of the premises herein contained and
for other good and valuable consideration, the receipt of which is hereby
acknowledged, the parties hereto agree as follows:

          1. Defined Terms. Unless otherwise noted herein, terms defined in the
Credit Agreement and used herein shall have the meanings given to them in the
Credit Agreement.

          2. Amendment to Section 1.1 (Definitions). (a) Section 1.1 to the
Credit Agreement is hereby amended by (x) deleting the word "and" at the end of
paragraph (v) of the definition of "Consolidated EBITDA", (y) deleting the
period at the end of paragraph (vi) of such definition and substituting in lieu
thereof";", and (z) adding the following paragraphs (vii) and (viii) of the
definition of "Consolidated EBITDA" in the appropriate numerical order:

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                                                                               2

          "(vii) solely for the purpose of determining Consolidated EBITDA for
     each period of four consecutive fiscal quarters ended on June 30, 2005 and
     September 30, 2005, (A) Consolidated EBITDA for the period of four
     consecutive fiscal quarters ending June 30, 2005, shall be increased by
     $1,550,000 and (B) Consolidated EBITDA for the period of four consecutive
     fiscal quarters ending September 30, 2005, shall be increased by $775,000,
     in each case, representing the rebate deemed to be received by the Borrower
     pursuant to the McLane Distribution Service Agreement during such periods;
     and

          (viii) solely for the purpose of determining Consolidated EBITDA for
     each period of four consecutive fiscal quarters ended on June 30, 2005 and
     September 30, 2005, Consolidated EBITDA shall be increased by $220,000 and
     $200,000, representing (y) the amount actually paid by the Borrower and its
     Subsidiaries on account of legal fees and (z) an amount equal to payments
     made by MAPCO Express to the State of Tennessee's Division of Underground
     Storage Tanks Fund, respectively."

          (b) Section 1.1 to the Credit Agreement is hereby further amended by
adding the following proviso at the end of the definition of "Consolidated Fixed
Charges":

          "provided, that for the purpose of determining Consolidated Fixed
     Charges for the fiscal quarters of the Borrower ending June 30, 2005,
     September 30, 2005 and December 31, 2005, Consolidated Fixed Charges for
     the relevant period (i) shall be deemed to equal Consolidated Fixed Charges
     for such fiscal quarter (and, in the case of the latter two such
     determinations, each previous fiscal quarter commencing after the Effective
     Date) multiplied by 4, 2 and 4/3, respectively and (ii) shall exclude any
     payment of scheduled amortization made on account of the Existing Credit
     Facilities during such period."

          (c) Section 1.1 to the Credit Agreement is hereby further amended by
deleting the parenthetical in the definition of "FQ1", "FQ2", "FQ3" and "FQ4"
and substituting in lieu thereof the following:

          "(e.g., FQ1 2005 means the first fiscal quarter of the Borrowers' 2005
     fiscal year, which ends March 31, 2005)."

          (d) Section 1.1 to the Credit Agreement is hereby further amended by
inserting at the end of the first sentence of the definition of "Indebtedness"
the following:

          ";provided that, solely for the purposes of calculating the financial
     ratios set forth in Section 7.1 and calculating the Consolidated Leverage
     Ratio for purposes of determining the Applicable Margin, "Indebtedness"
     shall exclude the MFC Intercompany Debt."

          3. Conditions to Effectiveness. This Amendment shall become effective
upon the date (the "Amendment Effective Date") on which the following conditions
have been satisfied:

          (a) The Administrative Agent shall have received this Amendment,
     executed and delivered by a duly authorized officer of the Borrower.

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                                                                               3

          (b) The Administrative Agent shall have received an Acknowledgment and
     Consent, substantially in the form of Exhibit A hereto, duly executed and
     delivered by each Grantor (as defined in the Guarantee and Collateral
     Agreement) and Delek US Holdings, Inc.

          (c) The Administrative Agent shall have received a Lender Consent
     Letter, substantially in the form of Exhibit B (a "Lender Consent Letter"),
     duly executed and delivered by the Required Lenders.

          (d) The Administrative Agent shall have received all fees required to
     be paid, and all expenses for which invoices have been presented supported
     by customary documentation (including reasonable fees, disbursements and
     other charges of counsel to the Administrative Agent), on or before the
     Amendment Effective Date.

          (e) On or before the Amendment Effective Date, all corporate and other
     proceedings taken or to be taken in connection with this Amendment shall be
     reasonably satisfactory in form and substance to Administrative Agent and
     its counsel, and Administrative Agent and such counsel shall have received
     all such counterpart originals or certified copies of such documents as
     Administrative Agent may reasonably request.

          4. Representations and Warranties. The Borrower hereby represents and
warrants to the Administrative Agent and each Lender that (before and after
giving effect to this Amendment):

          (a) Each Loan Party that is a party to this Amendment has the
     corporate power and authority, and the legal right, to make, deliver and
     perform this Amendment. Each Loan Party that is a party to this Amendment
     has taken all necessary corporate or other action to authorize the
     execution, delivery and performance of this Amendment. No consent or
     authorization of, filing with, notice to or other act by or in respect of,
     any Governmental Authority or any other Person is required in connection
     with this Amendment or the execution, delivery, performance, validity or
     enforceability of this Amendment. This Amendment has been duly executed and
     delivered on behalf of each Loan Party that is a party thereto. This
     Amendment constitutes a legal, valid and binding obligation of each Loan
     Party that is a party thereto, enforceable against each such Loan Party in
     accordance with its terms, except as enforceability may be limited by
     applicable bankruptcy, insolvency, reorganization, moratorium or similar
     laws affecting the enforcement of creditors' rights generally and by
     general equitable principles (whether enforcement is sought by proceedings
     in equity or at law).

          (b) The execution, delivery and performance of this Amendment will not
     violate any material Requirement of Law or any Contractual Obligation of
     the Borrower or any of its respective Subsidiaries and will not result in,
     or require, the creation or imposition of any Lien on any of their
     respective properties or revenues pursuant to any Requirement of Law or any
     such Contractual Obligation (other than the Liens created by the Security
     Documents).

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                                                                               4

          (c) Each of the representations and warranties made by any Loan Party
     herein or in or pursuant to the Loan Documents is true and correct in all
     material respects on and as of the Amendment Effective Date as if made on
     and as of such date (except that any representation or warranty which by
     its terms is made as of an earlier date shall be true and correct in all
     material respects as of such earlier date).

          (d) The Borrower and the other Loan Parties have performed in all
     material respects all agreements and satisfied all conditions which this
     Amendment and the other Loan Documents provide shall be performed or
     satisfied by the Borrower or the other Loan Parties on or before the
     Amendment Effective Date.

          (e) After giving effect to this Amendment, no Default or Event of
     Default has occurred and is continuing, or will result from this Amendment.

          5. Payment of Expenses. The Borrower agrees to pay or reimburse the
Administrative Agent for all of its reasonable out-of-pocket costs and expenses
incurred in connection with this Amendment, any other documents prepared in
connection herewith and the transactions contemplated hereby, including, without
limitation, the reasonable fees and disbursements of counsel to the
Administrative Agent.

          6. Limited Effect. Except as expressly provided hereby, all of the
terms and provisions of the Credit Agreement and the other Loan Documents are
and shall remain in full force and effect. The amendments contained herein shall
not be construed as an amendment of any other provision of the Credit Agreement
or the other Loan Documents or for any purpose except as expressly set forth
herein or a consent to any further or future action on the part of the Borrower
that would require the waiver or consent of the Administrative Agent or the
Lenders.

          7. GOVERNING LAW; Miscellaneous. (a) THIS AMENDMENT SHALL BE GOVERNED
BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NEW YORK.

          (b) This Amendment may be executed by one or more of the parties to
     this Agreement on any number of separate counterparts, and all of said
     counterparts taken together shall be deemed to constitute one and the same
     instrument. A set of the copies of this Amendment and the Lender Consent
     Letters signed by all the parties shall be lodged with the Borrower and the
     Administrative Agent. Delivery of an executed signature page of this
     Agreement or of a Lender Consent Letter by facsimile transmission shall be
     effective as delivery of a manually executed counterpart hereof.

          (c) The execution and delivery of the Lender Consent Letter by any
     Lender shall be binding upon each of its successors and assigns (including
     assignees of its Loans in whole or in part prior to effectiveness hereof).

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.

                                        MAPCO EXPRESS, INC., as Borrower

                                        By: /s/ Uzi Yemin
                                            ------------------------------------
                                        Name: Uzi Yemin
                                        Title: President

                                        By: /s/ Ed Morgan
                                            ------------------------------------
                                        Name: Ed Morgan
                                        Title: Chief Financial Officer

                                        LEHMAN COMMERCIAL PAPER INC., as
                                        Administrative Agent

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------

                          [Signature Page to Amendment]

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.

                                        MAPCO EXPRESS, INC., as Borrower

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------

                                        LEHMAN COMMERCIAL PAPER INC., as
                                        Administrative Agent

                                        By: /s/ V. Paul Arzouian
                                            ------------------------------------
                                        Name: V. Paul Arzouian
                                        Title: Authorized Signatory

                          [Signature Page to Amendment]<PAGE>
                                                                 EXHIBIT 10.7(b)

                               SECOND AMENDMENT TO
                      AMENDED AND RESTATED CREDIT AGREEMENT

          SECOND AMENDMENT, dated as of October 11, 2005 (this "Amendment"), to
the AMENDED AND RESTATED CREDIT AGREEMENT, dated as of April 28, 2005 (as
amended by the First Amendment dated as of August 18, 2005 and as further
amended, supplemented or otherwise modified in writing from time to time, the
"Credit Agreement"), among MAPCO EXPRESS, INC., a Delaware corporation (the
"Borrower"), the several banks and other financial institutions or entities from
time to time parties to the Agreement (the "Lenders"), LEHMAN BROTHERS INC., as
advisor, sole lead arranger and sole bookrunner (in such capacity, the
"Arranger"), SUNTRUST BANK, as syndication agent (in such capacity, the
"Syndication Agent"), BANK LEUMI USA, as co-administrative agent (in such
capacity, the "Co-Administrative Agent"), and LEHMAN COMMERCIAL PAPER INC., as
administrative agent (in such capacity, the "Administrative Agent").

                                   WITNESSETH:

          WHEREAS, the parties hereto desire to amend the Credit Agreement on
the terms and subject to the conditions set forth herein;

          WHEREAS, the Borrower has requested that Lehman Commercial Paper Inc.
(the "Swing Line Lender") make available swing line loans under the Revolving
Credit Commitments ("Swing Line Loans");

          WHEREAS, the Borrower and the Lenders wish to amend the Agreement to
permit the borrowing by the Borrower of the Swing Line Loans; and

          WHEREAS, the Lenders have agreed to make such amendments solely upon
the terms and conditions provided for in this Amendment;

          NOW, THEREFORE, in consideration of the premises herein contained and
for other good and valuable consideration, the receipt of which is hereby
acknowledged, the parties hereto agree as follows:

          1. Defined Terms. Unless otherwise noted herein, terms defined in the
Credit Agreement and used herein shall have the meanings given to them in the
Credit Agreement.

          2. Amendments to Table of Contents to the Credit Agreement. The list
of Exhibits in the Table of Contents to the Credit Agreement is hereby amended
by inserting "G-3 Form of Swing Line Note" in the appropriate order.

          3. Amendments to Section 1.1 of the Credit Agreement (Defined Terms).
(a) Section 1.1 (a) of the Credit Agreement is hereby amended by inserting the
words "(including Swing Line Loans)" after the words "Revolving Credit Facility"
in the definition of "Applicable Margin".

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                                                                               2

          (b) Section 1.1(a) of the Credit Agreement is hereby further amended
by inserting the following at the end of the definition of "Available Revolving
Credit Commitment":

     "; provided, that in calculating any Lender's Revolving Extensions of
     Credit for the purpose of determining such Lender's Available Revolving
     Credit Commitment pursuant to Section 2.7(a), the aggregate principal
     amount of Swing Line Loans then outstanding shall be deemed to be zero".

          (c) Section 1.1(a) of the Credit Agreement is hereby further amended
by inserting the words "or Swing Line Loans" after the words "Revolving Credit
Loans" in the definition of "Consolidated Current Liabilities".

          (d) Section 1.1(a) of the Credit Agreement is hereby further amended
by inserting the words "and Swing Line Loans" after the words "Revolving Credit
Loans" in clause (b)(iii) of the definition of "Excess Cash Flow".

          (e) Section 1.1(a) of the Credit Agreement is hereby further amended
by inserting "and any Swing Line Loan" after the words "Base Rate Loan" in
clause (d) of the definition of "Interest Payment Date".

          (f) Section 1.1(a) of the Credit Agreement is hereby further amended
by inserting the words "and Swing Line Loans" after the words "Letters of
Credit" in the definition of "Revolving Credit Commitment".

          (g) Section 1.1(a) of the Credit Agreement is hereby further amended
by (x) deleting the word "and" at the end of clause (a) of the definition of
"Revolving Extensions of Credit" and substituting in lieu thereof",", (y)
deleting the period at the end of clause (b) of the definition of "Revolving
Extensions of Credit" and substituting in lieu thereof the word "and", and (z)
inserting the following at the end of the definition of "Revolving Extensions of
Credit":

     "and (c) such Lender's Revolving Credit Percentage of the aggregate
     principal amount of Swing Line Loans then outstanding."

          (h) Section 1.1 of the Credit Agreement is hereby further amended by
inserting the following new definitions in the appropriate alphabetical order:

          "Refunded Swing Line Loans": as defined in Section 2.24(b).

          "Swing Line Commitment": the obligation of the Swing Line Lender to
make Swing Line Loans pursuant to Section 2.23 in an aggregate principal amount
at any one time outstanding not to exceed $5,000,000.

          "Swing Line Lender": Lehman Commercial Paper Inc., in its capacity as
the lender of Swing Line Loans.

          "Swing Line Loans": as defined in Section 2.23(a).

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                                                                               3

          "Swing Line Note": as defined in Section 2.6(e).

          "Swing Line Participation Amount": as defined in Section 2.24(c).

          4. Amendment to Section 2 of the Credit Agreement (Amount and Terms of
Commitments). Section 2 of the Credit Agreement is hereby amended by inserting
the following new Sections 2.23 and 2.24 to the Credit Agreement in the
appropriate order:

          "2.23 Swing Line Commitment. (a) Subject to the terms and conditions
     hereof, the Swing Line Lender agrees that, during the Revolving Credit
     Commitment Period, it will make available to the Borrower in the form of
     swing line loans ("Swing Line Loans") a portion of the credit otherwise
     available to the Borrower under the Revolving Credit Commitments; provided
     that (i) the aggregate principal amount of Swing Line Loans outstanding at
     any time shall not exceed the Swing Line Commitment then in effect
     (notwithstanding that the Swing Line Loans outstanding at any time, when
     aggregated with the Swing Line Lender's other outstanding Revolving Credit
     Loans hereunder, may exceed the Swing Line Commitment then in effect or
     such Swing Line Lender's Revolving Credit Commitment then in effect) and
     (ii) the Borrower shall not request, and the Swing Line Lender shall not
     make, any Swing Line Loan if, after giving effect to the making of such
     Swing Line Loan, the aggregate amount of the Available Revolving Credit
     Commitments would be less than zero. During the Revolving Credit Commitment
     Period, the Borrower may use the Swing Line Commitment by borrowing,
     repaying and reborrowing, all in accordance with the terms and conditions
     hereof. Swing Line Loans shall be Base Rate Loans only.

          (b) The Borrower shall repay each outstanding Swing Line Loan on the
     date that is the earlier of (x) the Revolving Credit Termination Date and
     (y) the date that is the seventh Business Day after the date on which such
     Swing Line Loan is made."

          "2.24 Procedure for Swing Line Borrowing; Refunding of Swing Line
     Loans. (a) The Borrower may borrow under the Swing Line Commitment on any
     Business Day during the Revolving Credit Commitment Period, provided, the
     Borrower shall give the Swing Line Lender irrevocable telephonic notice
     confirmed promptly in writing by facsimile (which written facsimile notice
     must be received by the Swing Line Lender not later than 1:00 P.M., New
     York City time, on the proposed Borrowing Date), specifying (i) the amount
     to be borrowed and (ii) the requested Borrowing Date. Each borrowing under
     the Swing Line Commitment shall be in an amount equal to $500,000 or a
     whole multiple of $100,000 in excess thereof. Not later than 3:00 P.M., New
     York City time, on the Borrowing Date specified in the borrowing notice in
     respect of any Swing Line Loan, the Swing Line Lender shall make available
     to the Administrative Agent at the Funding Office an amount in immediately
     available funds equal to the amount of such Swing Line Loan. The
     Administrative Agent shall make the proceeds of such Swing Line Loan
     available to the Borrower not later than 3:00 P.M., New York City time, on
     such Borrowing Date in like funds as received by the Administrative Agent.

          (b) The Swing Line Lender, at any time and from time to time in its
     sole and absolute discretion may, on behalf of the Borrower (which hereby
     irrevocably directs the

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                                                                               4

     Swing Line Lender to act on its behalf), on one Business Day's notice given
     by the Swing Line Lender no later than 12:00 Noon, New York City time,
     request each Revolving Credit Lender to make, and each Revolving Credit
     Lender hereby agrees to make, a Revolving Credit Loan (which shall
     initially be a Base Rate Loan), in an amount equal to such Revolving Credit
     Lender's Revolving Credit Percentage of the aggregate amount of the Swing
     Line Loans (the "Refunded Swing Line Loans") outstanding on the date of
     such notice, to repay the Swing Line Lender. Each Revolving Credit Lender
     shall make the amount of such Revolving Credit Loan available to the
     Administrative Agent at the Funding Office in immediately available funds,
     not later than 10:00 A.M., New York City time, one Business Day after the
     date of such notice. The proceeds of such Revolving Credit Loans shall be
     made immediately available by the Administrative Agent to the Swing Line
     Lender for application by the Swing Line Lender to the repayment of the
     Refunded Swing Line Loans.

          (c) If prior to the time a Revolving Credit Loan would have otherwise
     been made pursuant to Section 2.24(b), one of the events described in
     Section 8(f) shall have occurred and be continuing with respect to the
     Borrower, or if for any other reason, as determined by the Swing Line
     Lender in its sole discretion, Revolving Credit Loans may not be made as
     contemplated by Section 2.24(b), each Revolving Credit Lender shall, on the
     date such Revolving Credit Loan was to have been made pursuant to the
     notice referred to in Section 2.24(b) (the "Refunding Date"), purchase for
     cash an undivided participating interest in the then outstanding Swing Line
     Loans by paying to the Swing Line Lender an amount (the "Swing Line
     Participation Amount") equal to (i) such Revolving Credit Lender's
     Revolving Credit Percentage times (ii) the sum of the aggregate principal
     amount of Swing Line Loans then outstanding which were to have been repaid
     with such Revolving Credit Loans.

          (d) Whenever, at any time after the Swing Line Lender has received
     from any Revolving Credit Lender such Lender's Swing Line Participation
     Amount, the Swing Line Lender receives any payment on account of the Swing
     Line Loans, the Swing Line Lender will distribute to such Lender its Swing
     Line Participation Amount (appropriately adjusted, in the case of interest
     payments, to reflect the period of time during which such Lender's
     participating interest was outstanding and funded and, in the case of
     principal and interest payments, to reflect such Lender's pro rata portion
     of such payment if such payment is not sufficient to pay the principal of
     and interest on all Swing Line Loans then due); provided, however, that in
     the event that such payment received by the Swing Line Lender is required
     to be returned, such Revolving Credit Lender will return to the Swing Line
     Lender any portion thereof previously distributed to it by the Swing Line
     Lender.

          (e) Each Revolving Credit Lender's obligation to make the Loans
     referred to in Section 2.24(b) and to purchase participating interests
     pursuant to Section 2.24(c) shall be absolute and unconditional and shall
     not be affected by any circumstance, including, without limitation, (i) any
     setoff, counterclaim, recoupment, defense or other right which such
     Revolving Credit Lender or the Borrower may have against the Swing Line
     Lender, the Borrower or any other Person for any reason whatsoever; (ii)
     the occurrence or continuance of a Default or an Event of Default or the
     failure to satisfy any of the other conditions specified in Section 5;
     (iii) any adverse change in the condition (financial or

<PAGE>

                                                                               5

     otherwise) of the Borrower; (iv) any breach of this Agreement or any other
     Loan Document by the Borrower, any other Loan Party or any other Revolving
     Credit Lender; or (v) any other circumstance, happening or event
     whatsoever, whether or not similar to any of the foregoing."

          5. Amendment to Section 2.4(a) of the Credit Agreement (Revolving
Credit Commitments). Section 2.4(a) of the Credit Agreement is hereby amended by
deleting it in its entirety and substituting in lieu therefore the following new
Section 2.4(a):

          "(a) Subject to the terms and conditions hereof, the Revolving Credit
     Lenders severally agree to make revolving credit loans ("Revolving Credit
     Loans") to the Borrower from time to time during the Revolving Credit
     Commitment Period in an aggregate principal amount at any one time
     outstanding for each Revolving Credit Lender which, when added to such
     Lender's Revolving Credit Percentage of the sum of (i) the L/C Obligations
     then outstanding and (ii) the aggregate principal amount of the Swing Line
     Loans then outstanding, does not exceed the amount of such Lender's
     Revolving Credit Commitment. During the Revolving Credit Commitment Period
     the Borrower may use the Revolving Credit Commitments by borrowing,
     prepaying the Revolving Credit Loans in whole or in part, and reborrowing,
     all in accordance with the terms and conditions hereof. The Revolving
     Credit Loans may from time to time be Eurodollar Loans or Base Rate Loans,
     as determined by the Borrower and notified to the Administrative Agent in
     accordance with Sections 2.5 and 2.11, provided that no Revolving Credit
     Loan shall be made as a Eurodollar Loan after the day that is one month
     prior to the Revolving Credit Termination Date."

          6. Amendment to Section 2.5 of the Credit Agreement (Procedure for
Revolving Credit Borrowing). Section 2.5 of the Credit Agreement is hereby
amended by inserting the following at the end of the third sentence thereof:

     "; provided, that the Swing Line Lender may request, on behalf of the
     Borrower, borrowings of Base Rate Loans under the Revolving Credit
     Commitments in other amounts pursuant to Section 2.24".

          7. Amendments to Section 2.6 of the Credit Agreement (Repayment of
Loans; Evidence of Debt). (a) Section 2.6(a) of the Credit Agreement is hereby
amended by (x) deleting the word "and" at the end of clause (i) in the first
sentence of Section 2.6(a) and substituting in lieu thereof",", (y) deleting the
period at the end of clause (ii) in the first sentence of Section 2.6(a) and
substituting in lieu thereof the word "and", and (z) inserting the following at
the end of the first sentence of Section 2.6(a):

     "and (iii) the then unpaid principal amount of each Swing Line Loan of such
     Swing Line Lender on the Revolving Credit Termination Date (or on such
     earlier date on which the Loans become due and payable pursuant to Section
     8)."

          (b) Section 2.6(e) of the Credit Agreement is hereby amended by
deleting it in its entirety and substituting in lieu therefore the following new
Section 2.6(e):

<PAGE>

                                                                               6

          "(e) The Borrower agrees that, upon the request to the Administrative
     Agent by any Lender, the Borrower will promptly execute and deliver to such
     Lender a promissory note of the Borrower evidencing any Term Loans,
     Revolving Credit Loans or Swing Line Loans, as the case may be, of such
     Lender, substantially in the forms of Exhibit G-l, G-2 or G-3, respectively
     (a "Term Note", "Revolving Credit Note" or "Swing Line Note",
     respectively), with appropriate insertions as to date and principal amount;
     provided, that delivery of Notes shall not be a condition precedent to the
     occurrence of the Effective Date or the making of the Loans or issuance of
     Letters of Credit on the Effective Date."

          8. Amendment to Section 2.8 of the Credit Agreement (Termination or
Reduction of Revolving Credit Commitments). Section 2.8 of the Credit Agreement
is hereby amended by inserting the words "and Swing Line Loans" after the words
"Revolving Credit Loans".

          9. Amendment to Section 2.9 of the Credit Agreement (Optional
Prepayments). Section 2.9 of the Credit Agreement is hereby amended by deleting
it in its entirety and substituting in lieu therefore the following new Section
2.9:

          "2.9 Optional Prepayments. The Borrower may at any time and from time
     to time prepay the Loans, in whole or in part, without premium or penalty
     (except as otherwise provided herein), upon irrevocable notice delivered to
     the Administrative Agent no later than 12:00 noon, New York City time,
     three Business Days prior thereto in the case of Eurodollar Loans and no
     later than 12:00 noon, New York City time, one Business Day prior thereto
     in the case of Base Rate Loans, which notice shall specify the date and
     amount of such prepayment, whether such prepayment is of Term Loans or
     Revolving Credit Loans, and whether such prepayment is of Eurodollar Loans
     or Base Rate Loans; provided, that (i) if a Eurodollar Loan is prepaid on
     any day other than the last day of the Interest Period applicable thereto,
     the Borrower shall also pay any amounts owing pursuant to Section 2.19 and
     (ii) no prior notice is required for the prepayment of Swing Line Loans.
     Upon receipt of any such notice the Administrative Agent shall promptly
     notify each relevant Lender thereof. If any such notice is given, the
     amount specified in such notice shall be due and payable on the date
     specified therein, together with (except in the case of Revolving Credit
     Loans that are Base Rate Loans and Swing Line Loans) accrued interest to
     such date on the amount prepaid. Partial prepayments of Term Loans and
     Revolving Credit Loans shall be in an aggregate principal amount of
     $500,000 or a whole multiple thereof. Partial prepayments of Swing Line
     Loans shall be in an aggregate principal amount of $100,000 or a whole
     multiple thereof."

          10. Amendment to Section 2.16 of the Credit Agreement (Pro Rata
Treatment and Payments). Section 2.16(d) of the Credit Agreement is hereby
amended by deleting the parenthetical in the second sentence thereof and
substituting in lieu therefore the following:

     "(except in the case of Swing Line Loans and Revolving Credit Loans that
     are Base Rate Loans)".

<PAGE>

                                                                               7

          11. Amendment to Section 3.5 of the Credit Agreement (Reimbursement
Obligations of the Borrowers). Section 3.5 of the Credit Agreement is hereby
amended by deleting it in its entirety and substituting in lieu therefore the
following new Section 3.5:

          "3.5 Reimbursement Obligations of the Borrower. The Borrower agrees to
     reimburse each Issuing Lender, on each date on which such Issuing Lender
     notifies the Borrower of the date and amount of a draft presented under any
     Letter of Credit and paid by such Issuing Lender, for the amount of (a)
     such draft so paid and (b) any taxes, fees, charges or other costs or
     expenses incurred by such Issuing Lender in connection with such payment
     (the amounts described in the foregoing clauses (a) and (b) in respect of
     any drawing, collectively, the "Payment Amount"). Each such payment shall
     be made to such Issuing Lender at its address for notices specified herein
     in lawful money of the United States of America and in immediately
     available funds. Interest shall be payable on each Payment Amount from the
     date of the applicable drawing until payment in full at the rate set forth
     in (i) until the second Business Day following the date of the applicable
     drawing, Section 2.13(b) and (ii) thereafter, Section 2.13(c). Each drawing
     under any Letter of Credit shall (unless an event of the type described in
     clause (i) or (ii) of Section 8(f) shall have occurred and be continuing
     with respect to the Borrower, in which case the procedures specified in
     Section 3.4 for funding by L/C Participants shall apply) constitute a
     request by the Borrower to the Administrative Agent for a borrowing
     pursuant to Section 2.5 of Base Rate Loans (or, at the option of the
     Administrative Agent and the Swing Line Lender in their sole discretion, a
     borrowing pursuant to Section 2.24 of Swing Line Loans) in the amount of
     such drawing. The Borrowing Date with respect to such borrowing shall be
     the first date on which a borrowing of Revolving Credit Loans (or, if
     applicable, Swing Line Loans) could be made, pursuant to Section 2.5 (or,
     if applicable, Section 2.24), if the Administrative Agent had received a
     notice of such borrowing at the time the Administrative Agent receives
     notice from the relevant Issuing Lender of such drawing under such Letter
     of Credit."

          12. Amendment to Section 4.16 of the Credit Agreement (Use of
Proceeds). Section 4.16 of the Credit Agreement is hereby amended by deleting
the second sentence thereof and substituting in lieu therefore the following:

     "The proceeds of the Revolving Credit Loans and the Swing Line Loans, and
     the Letters of Credit shall be used for general corporate purposes;
     provided that, up to $10,000,000 of Revolving Credit Loans may be borrowed
     on the Effective Date to finance a portion of the Transactions, the Delek
     US Dividend and to pay related fees and expenses."

          13. Amendment to Section 10.1 of the Credit Agreement (Amendments and
Waivers). Section 10.1 of the Credit Agreement is hereby amended by (a) deleting
the "or" at the end of clause (vii) to the proviso in the first paragraph of
Section 10.1, (b) deleting the period at the end of clause (viii) to the proviso
in the first paragraph of Section 10.1 and substituting in lieu thereof"; or"
and (c) inserting the following new clause (ix) to the proviso in the first
paragraph of Section 10.1 in the appropriate order:

          "(ix) amend, modify or waive any provision of Section 2.23 or 2.24
     without the consent of the Swing Line Lender."

<PAGE>

                                                                               8

          14. Amendment to Section 10.6 of the Credit Agreement (Successors and
Assigns; Participations and Assignments). Section 10.6(c) of the Credit
Agreement is hereby amended by (a) inserting the words "and the Swing Line
Lender" after the words "the written consent of the Issuing Lender", and (b)
deleting the words "(and, where the consent of the Borrower, the Administrative
Agent or the Issuing Lender is required pursuant to the foregoing provisions, by
the Borrower and such other Persons)" and substituting in lieu thereof the words
"(and, where the consent of the Borrower, the Administrative Agent, the Issuing
Lender or the Swing Line Lender is required pursuant to the foregoing
provisions, by the Borrower and such other Persons)".

          15. Amendment to Exhibits to Credit Agreement (Form of Swing Line
Note). The Credit Agreement is hereby amended by inserting Annex I to this
Amendment as the new Exhibit G-3 to the Credit Agreement in the appropriate
order.

          16. Conditions to Effectiveness. This Amendment shall become effective
upon the date (the "Amendment Effective Date") on which the Administrative Agent
shall have received:

          (a) This Amendment, executed and delivered by a duly authorized
     officer of the Borrower.

          (b) The Administrative Agent shall have received an Acknowledgment and
     Consent, substantially in the form of Exhibit A hereto, duly executed and
     delivered by each Grantor (as defined in the Guarantee and Collateral
     Agreement) and Delek US Holdings, Inc.

          (c) A Lender Consent Letter, substantially in the form of Exhibit B (a
     "Lender Consent Letter"), duly executed and delivered by the Required
     Lenders.

          (d) The Administrative Agent shall have received all fees required to
     be paid, and all expenses for which invoices have been presented supported
     by customary documentation (including reasonable fees, disbursements and
     other charges of counsel to the Administrative Agent), on or before the
     Amendment Effective Date.

          (e) On or before the Amendment Effective Date, all corporate and other
     proceedings taken or to be taken in connection with this Amendment shall be
     reasonably satisfactory in form and substance to Administrative Agent and
     its counsel, and Administrative Agent and such counsel shall have received
     all such counterpart originals or certified copies of such documents as
     Administrative Agent may reasonably request.

          17. Representations and Warranties. The Borrower hereby represents and
warrants to the Administrative Agent and each Lender that (before and after
giving effect to this Amendment):

          (a) The Borrower has the corporate power and authority, and the legal
     right, to make, deliver and perform this Amendment and to borrow under the
     Credit Agreement as amended hereby. The Borrower has taken all necessary
     corporate or other action to authorize the execution, delivery and
     performance of this Amendment and the

<PAGE>

                                                                               9

     borrowings on the terms and conditions of the Credit Agreement as amended
     by this Amendment (the "Amended Credit Agreement"). No consent or
     authorization of, filing with, notice to or other act by or in respect of,
     any Governmental Authority or any other Person is required in connection
     with this Amendment, the borrowings under the Amended Credit Agreement or
     the execution, delivery, performance, validity or enforceability of this
     Amendment, except (i) consents, authorizations, filings and notices which
     have been obtained or made and are in full force and effect and (ii) the
     filings referred to in Section 4.19 of the Credit Agreement. This Amendment
     has been duly executed and delivered on behalf of the Borrower. Each of
     this Amendment and the Amended Credit Agreement constitutes a legal, valid
     and binding obligation of the Borrower, enforceable against the Borrower in
     accordance with its terms, except as enforceability may be limited by
     applicable bankruptcy, insolvency, reorganization, moratorium or similar
     laws affecting the enforcement of creditors' rights generally and by
     general equitable principles (whether enforcement is sought by proceedings
     in equity or at law).

          (b) The execution, delivery and performance of this Amendment, the
     borrowings under the Amended Credit Agreement and the use of the proceeds
     thereof will not violate any Requirement of Law or any Contractual
     Obligation of the Borrower or any of its Subsidiaries and will not result
     in, or require, the creation or imposition of any Lien on any of their
     respective properties or revenues pursuant to any Requirement of Law or any
     such Contractual Obligation (other than the Liens created by the Security
     Documents).

          (c) Each of the representations and warranties made by any Loan Party
     herein or in or pursuant to the Loan Documents is true and correct in all
     material respects on and as of the Amendment Effective Date as if made on
     and as of such date (except that any representation or warranty which by
     its terms is made as of an earlier date shall be true and correct in all
     material respects as of such earlier date).

          (d) The Borrower and the other Loan Parties have performed in all
     material respects all agreements and satisfied all conditions which this
     Amendment and the other Loan Documents provide shall be performed or
     satisfied by the Borrower or the other Loan Parties on or before the
     Amendment Effective Date.

          (e) After giving effect to this Amendment, no Default or Event of
     Default has occurred and is continuing, or will result from the
     consummation of the transactions contemplated by this Amendment.

          18. Payment of Expenses. The Borrower agrees to pay or reimburse the
Administrative Agent for all of its reasonable out-of-pocket costs and expenses
incurred in connection with this Amendment, any other documents prepared in
connection herewith and the transactions contemplated hereby, including, without
limitation, the reasonable fees and disbursements of counsel to the
Administrative Agent.

          19. Limited Effect. Except as expressly provided hereby, all of the
terms and provisions of the Credit Agreement and the other Loan Documents are
and shall remain in full

<PAGE>

                                                                              10

force and effect. The amendments contained herein shall not be construed as a
waiver or amendment of any other provision of the Credit Agreement or the other
Loan Documents or for any purpose except as expressly set forth herein or a
consent to any further or future action on the part of the Borrower that would
require the waiver or consent of the Administrative Agent or the Lenders.

          20. GOVERNING LAW; Miscellaneous. (a) THIS AMENDMENT SHALL BE GOVERNED
BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NEW YORK.

          (b) This Amendment may be executed by one or more of the parties to
this Agreement on any number of separate counterparts, and all of said
counterparts taken together shall be deemed to constitute one and the same
instrument. A set of the copies of this Amendment and the Lender Consent Letters
signed by all the parties shall be lodged with the Borrower and the
Administrative Agent. Delivery of an executed signature page of this Agreement
or of a Lender Consent Letter by facsimile transmission shall be effective as
delivery of a manually executed counterpart hereof.

          (c) The execution and delivery of the Lender Consent Letter by any
Lender shall be binding upon each of its successors and assigns (including
assignees of its Loans in whole or in part prior to effectiveness hereof).

                  [Remainder of page intentionally left blank]

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.

                                        MAPCO EXPRESS, INC., as Borrower

                                        By: /s/ Ed Morgan
                                            ------------------------------------
                                        Name: Ed Morgan
                                              ----------------------------------
                                        Title: CFO
                                               ---------------------------------

                                        By: /s/ Uzi Yemin
                                            ------------------------------------
                                        Name: Uzi Yemin
                                              ----------------------------------
                                        Title: President
                                               ---------------------------------

                                        LEHMAN COMMERCIAL PAPER INC., as
                                        Administrative Agent

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------

  [Signature Page to Second Amendment to Amended and Restated Credit Agreement]

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.

                                        MAPCO EXPRESS, INC., as Borrower

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------

                                        LEHMAN COMMERCIAL PAPER INC., as
                                        Administrative Agent

                                        By: /s/ V. Paul Arzouian
                                            ------------------------------------
                                        Name: V. Paul Arzouian
                                        Title: Authorized Signatory

  [Signature Page to Second Amendment to Amended and Restated Credit Agreement]

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