Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Petersen Energia, S.A.
 2. Date of Event Requiring Statement (Month/Day/Year)
02/21/2008		 3. Issuer Name and Ticker or Trading Symbol
YPF SOCIEDAD ANONIMA [YPF]
(Last)
(First)
(Middle)
C/O GRUPO PETERSEN, CERRITO 740, PISO 1		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

BUENOS AIRES, C1 C1010AAP		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
American Depositary Shares (representing Class D Shares) 58,603,606
D
 
American Depositary Shares (representing Class D Shares) (1) 58,603,606
I
Indirectly owned by shareholders of Petersen Energia S.A. (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Options for the purchase of ADSs or Class D Shares 02/21/2008 02/21/2012 American Depositary Shares (representing Class D Shares) or 39,724,592 $ (3) I Jointly directly owned (4)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Petersen Energia, S.A.
C/O GRUPO PETERSEN
CERRITO 740, PISO 1
BUENOS AIRES, C1 C1010AAP		     X    

Signatures

Mauro Renato Jose Dacomo (5) 02/29/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Enrique Eskenazi, Sebastian Eskenazi, Matias Eskenazi Storey, and Ezequiel Eskenazi Storey are the sole shareholders in Petersen Energia PTY Ltd, which is the sole shareholder of Petersen Energia S.A. Each of them may be deemed to beneficially own the ADSs directly owned by Petersen Energia S.A.
(2) Indirectly owned by Enrique Eskenazi, Sebastian Eskenazi, Matias Eskenazi Storey and Ezequiel Eskenazi Storey as the shareholders of Petersen Energia PTY Ltd, the sole shareholder of Petersen Energia S.A.
(3) The exercise price to purchase Class D Shares or ADSs pursuant to the option is determined in accordance with the following formula: (i) US $15 billion multiplied by the consumer price index published monthly by the United States Bureau of Labor Statistics, (ii) plus or minus the accumulated results of the Issuer from the date of the Options to the exercise date, which is determined based on financial statements for each fiscal year ended after the date of the Options (with certain adjustments made for taxes paid), (iii) minus dividends, (iv) plus or minus any changes in capital, which is defined as contributions in cash or in kind by partners or third parties to increase the Issuer's capital or disbursements made by the Issuer to shareholders to decrease the Issuer's capital, (v) divided by the number of shares of the Issuer outstanding.
(4) Jointly directly owned by Enrique Eskenazi, Sebastian Eskenazi, Matias Eskenazi Storey and Ezequiel Eskenazi Storey
 
Remarks:
(5)  Mauro Renato Jose Dacomo is signing on behalf of all of the reporting persons pursuant to the Joint Filing Agreement
 dated February 28, 2008, which was filed with the Securities and Exchange Commission as an exhibit to the Schedule 13D for
 YPF  filed by the reporting persons on February 29, 2008.

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