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                                                                   EXHIBIT 10.25

                   SECOND AMENDMENT TO REIMBURSEMENT AGREEMENT
                                       AND
                               OTHER L/C DOCUMENTS

        THIS SECOND AMENDMENT TO REIMBURSEMENT AGREEMENT AND OTHER L/C DOCUMENTS
(the "Amendment") is made and dated as of the 15th day of September, 1998, by
and between SANWA BANK CALIFORNIA ("Sanwa"), MELLON BANK, N.A. and BANKBOSTON,
N.A. ("BankBoston") as the current Credit Support Providers under the
Reimbursement Agreement referred to below (and as the term "Credit Support
Providers" and capitalized terms not otherwise defined herein are used in the
Credit Agreement), BANKBOSTON, as the Issuing Bank for the Letter of Credit,
SANWA, as Agent for the Credit Support Providers, and MERCURY AIR GROUP, INC., a
New York corporation (the "Company").


RECITALS

        A. Pursuant to that certain Reimbursement Agreement dated as of April 1,
1998, by and among the Agent, the Issuing Bank, the Credit Support Providers and
the Company (the "Reimbursement Agreement"), the Issuing Bank and the Credit
Support Providers agreed to extend credit to the Company on the terms and
subject to the conditions set forth therein.

        B. The Company, the Agent, the Issuing Bank and the Credit Support
Providers have agreed to amend the Reimbursement Agreement in certain respects
as set forth more particularly below.

        NOW, THEREFORE, in consideration of the above Recitals and for other
good and valuable consideration, the receipt and adequacy of which are hereby
acknowledged, the parties hereto hereby agree as follows:


AGREEMENT

        1. Purchase or Retirement of Stock. To reflect the agreement of the
parties hereto to increase the limit of permitted stock repurchases and
redemptions currently contained in the Reimbursement Agreement, effective as of
the Effective Date (as defined in Paragraph 4 below), subparagraph 8(f) of the
Reimbursement Agreement is hereby amended to delete the dollar amount
"$9,000,000.00" appearing therein and to replace the same with the dollar amount
"$12,000,000.00."

        2. Reaffirmation of Loan Documents. The Company hereby affirms and
agrees that (a) the execution and delivery by the Company of and the performance
of its obligations under this Amendment shall not in any way amend, impair,
invalidate or otherwise affect any of the obligations of the Company or the
rights of the Agent or the 


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                                                                   EXHIBIT 10.25

Credit Support Providers under the Reimbursement Agreement or any other Loan
Document, (b) the term "Obligations" as used in the Loan Documents includes,
without limitation, the Obligations of the Company under the Reimbursement
Agreement as amended hereby.

        3. Reaffirmation of Guaranties. By executing this Amendment as provided
below, each Guarantor acknowledges the terms and conditions agreed to by the
Company, the Agent and the Credit Support Providers under this Amendment, and
affirms and agrees that (a) the execution and delivery by the Company and the
performance of its obligations under this Amendment shall not in any manner or
to any extent affect any of the obligations of such Guarantor or the rights of
the Agent or the Credit Support Providers under the Guaranty executed by such
Guarantor or any other document or instrument made or given by such Guarantor in
connection therewith, (b) the term "Obligations" as used in the Guaranties
includes, without limitation, the Obligations of the Company under the
Reimbursement Agreement as amended hereby, and (c) each Guaranty remains in full
force and effect.

        4. Effective Date. This Amendment shall be effective as of the date (the
"Effective Date") that there has been delivered to the Agent:

               (a) A copy of this Amendment, duly executed by each party hereto
and acknowledged by each of the Guarantors; and

               (b) Such corporate resolutions, incumbency certificates and other
authorizing documentation as the Agent may request.

        5. Representations and Warranties. The Company hereby represents and
warrants to the Agent and the Credit Support Providers that at the date hereof
and at and as of the Effective Date:

               (a) The Company and each of the Guarantors has the corporate
power and authority and the legal right to execute, deliver and perform this
Amendment and has taken all necessary corporate action to authorize the
execution, delivery and performance of this Amendment. This Amendment has been
duly executed and delivered on behalf of the Company and each of the Guarantors
and constitutes the legal, valid and binding obligation of such Person,
enforceable against such Person in accordance with its terms.

               (b) Both prior to and after giving effect hereto: (1) the
representations and warranties of the Company contained in the Reimbursement
Agreement and the other Loan Documents are accurate and complete in all
respects, and (2) there has not occurred an Event of Default or Potential
Default which has not been expressly waived hereby.

        6. No Other Amendment. Except as expressly amended hereby, the Loan
Documents shall remain in full force and effect as written and amended to date.


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                                                                   EXHIBIT 10.25


        7. Counterparts. This Amendment may be executed in any number of
counterparts, each of which when so executed shall be deemed to be an original
and all of which when taken together shall constitute one and the same
agreement.

        IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed as of the day and year first above written.

MERCURY AIR GROUP, INC.,
a New York corporation



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


SANWA BANK CALIFORNIA, as Agent and as a Credit Support Provider



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


MELLON BANK, N.A., as a Credit Support Provider



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


BANKBOSTON, N.A., as the Issuing Bank and a Credit Support Provider



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



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                                                                   EXHIBIT 10.25


ACKNOWLEDGED AND AGREED TO 
as of the 15th day of September, 1998:

EXCEL CARGO, INC.



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


FLORACOOL, INC.



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


HERMES AVIATION, INC.



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


MAYTAG AIRCRAFT CORPORATION



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


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                                                                   EXHIBIT 10.25

MERCURY AIR CARGO, INC.



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


VULCAN AVIATION, INC.



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


WOFFORD FLYING SERVICE, INC.



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


RENE PEREZ & ASSOCIATES, INC.



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




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