|Exhibit 12.2
|------------

CERTIFICATION

We, Guillermo Reda and Ángel Ramos Sánchez, certify
    that: 1.      We have reviewed this annual report on Form 20-F of YPF
    Sociedad Anónima (the Company); 2.Based on our 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, not misleading with respect to the period
  covered by this report; 3.Based on our 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 Company as of, and for, the periods presented in this
  report; 4.We and the Companys other certifying
  officer are responsible for establishing and maintaining disclosure controls
  and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and
  internal control over financial reporting (as defined in Exchange Act Rules
  13a-15(f) and 15d-15(f)) for the Company and have: (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 Company,
  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; (b)Designed such internal control over
  financial reporting, or caused such internal control over financial reporting
  to be designed under our supervision, to provide reasonable assurance regarding
  the reliability of financial reporting and the preparation of financial statements
  for external purposes in accordance with generally accepted accounting principles; (c)Evaluated the effectiveness of the
  Company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 (d)Disclosed in this report any change
  in the Companys internal control over financial reporting that occurred
  during the period covered by the annual report that has materially affected,
  or is reasonably likely to materially affect, the Companys internal control
  over financial reporting; and 5.We
    and the Companys other certifying officer have disclosed, based on our
    most recent evaluation of internal control over financial reporting, to the
    Companys auditors and the audit committee of the Companys board
    of directors (or persons performing the equivalent functions): (a)      All significant deficienciesand material weaknesses in the design or operation of internal control
    over financial reporting which are reasonably likely to adversely affect the
    Companys ability to record, process, summarize and report financial
    information; and (b)Any
    fraud, whether or not material, that involves management or other employees
    who have a significant role in the Companys internal control over financial
    reporting.


Date: April 12, 2011

| | By: | /s/ Guillermo Reda                                          | 
| | --- | ----------------------------------------------------------- | 
| |     |                                                             | 
|
| |     | Name: Guillermo Reda
        Title: Chief Financial Officer
| |     |                                                            
| | By: | /s/ Ángel Ramos Sánchez                                    
| |     |                                                            
| |     | Name: Ángel Ramos Sánchez                                  
| |     | Title: Director of Administration and Tax                  
| |     |                                                            

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