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Exhibit 31.2

MERCURY AIR GROUP, INC

CERTIFICATIONS PURSUANT TO
SECTION 302 OF
THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION

I, Robert Schlax, certify that:

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| | 1. I have reviewed this quarterly report on SEC Form 10-Q of Mercury Air
Group, Inc.;                                                                                                                                                                                                                                                                                           
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| | 2. Based on my knowledge, this report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to
make the statements made, in light of the circumstances under which such
statements were made, nor misleading with respect to the period covered by
this report;                                                                   
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| | 3. Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects
the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this report;                                                                                      
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| | 4. The registrants other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have;                                                                                                                                                  
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| | a. designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant including its
consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being
prepared;
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| | b. evaluated the effectiveness of the registrants disclosure controls
and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures as of the end of the
period covered by this report based on such evaluation; and                                                                                           
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| | c. disclosed in this report any changes in the registrants internal
control over financial reporting that occurred during the registrants most
recent fiscal quarter that has materially affected, or is reasonably likely
to materially affect, the registrants internal controls over financial
reporting; and                                                             
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| | 5. The registrants other certifying officer and I have disclosed, based
on our most recent evaluation of internal controls over financial reporting,
to the registrants auditors and the audit committee of registrants board of
directors (or persons performing similar functions);                                                                                        
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| | a. all significant deficiencies and material weaknesses in the design or
operation of internal controls over financial reporting which are reasonably
likely to adversely affect the registrants ability to record, process,
summarize and report financial information; and                                                                                                   
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| | b. any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrants internal controls
over financial reporting.                                                                                                                                                                                                  

| |  |                                      
| |  | -------------------------------------
| |  | /s/ Robert Schlax                    
| |  |                                      
| |  | Robert Schlax
Chief Financial Officer

May 14, 2004

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