<SEC-DOCUMENT>0000950103-12-001428.txt : 20120321
<SEC-HEADER>0000950103-12-001428.hdr.sgml : 20120321
<ACCEPTANCE-DATETIME>20120321120851
ACCESSION NUMBER:		0000950103-12-001428
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20120321
FILED AS OF DATE:		20120321
DATE AS OF CHANGE:		20120321

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			YPF SOCIEDAD ANONIMA
		CENTRAL INDEX KEY:			0000904851
		STANDARD INDUSTRIAL CLASSIFICATION:	PETROLEUM REFINING [2911]
		IRS NUMBER:				521612271
		STATE OF INCORPORATION:			C1
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12102
		FILM NUMBER:		12705275

	BUSINESS ADDRESS:	
		STREET 1:		AVENIDA PTE R SAENZ 777-8 PISO
		CITY:			BUENOS AIRES 1364 AR
		STATE:			C1
		BUSINESS PHONE:		5413267265

	MAIL ADDRESS:	
		STREET 1:		AVENIDA PTE R SAENZ 777-8 PISO
		CITY:			BUENOS AIRES
		STATE:			C1
</SEC-HEADER>
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<TYPE>6-K
<SEQUENCE>1
<FILENAME>dp29424_6k.htm
<DESCRIPTION>FORM 6-K
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman, serif; FONT-SIZE: 16pt; FONT-WEIGHT: bold">SECURITIES AND EXCHANGE COMMISSION</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman, serif; FONT-SIZE: 16pt; FONT-WEIGHT: bold">the Securities Exchange Act of 1934</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">annual reports under cover of Form 20-F or Form 40-F:</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">in paper as permitted by Regulation S-T Rule 101(b)(1):</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Translation of letter to the Buenos Aires Stock Exchange dated March 21, 2012</font></font></font></font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 72pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Arial; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Re.</font>: Decrees 324/12 of the Executive Power of the Chubut Province and 393/12 from the Santa Cruz Province</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Arial; FONT-SIZE: 10pt">Dear Sirs:</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Arial; FONT-SIZE: 10pt">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;The purpose of this letter is to comply with the requirements of Article 23 of the Regulations of the Buenos Aires Stock Exchange by informing that on March 20, 2012, YPF S.A. was notified that:</font></div>

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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Arial; FONT-SIZE: 10pt">Through Decree 324/12, the Executive Power of the Chubut Province ordered the expiration of the exploitation concessions of the blocks denominated El Tr&#233;bol &#8211; Escalante and Ca&#241;ad&#243;n Perdido &#8211; Campamento Central &#8211; Bella Vista Este, both operated by YPF S.A. In such decree, it is also indicated that the expiration will be effective ninety (90) calendar days after its notification.</font></div>
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<div><font style="DISPLAY: inline; FONT-FAMILY: Arial; FONT-SIZE: 10pt">2.&#160;&#160;</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Arial; FONT-SIZE: 10pt">Through Decree 393/12, the Executive Power of the Santa Cruz Province ordered the expiration of the exploitation concessions of the blocks denominated Los Monos and Cerro Piedra &#8211; Cerro Guadal Norte, both operated by YPF S.A. This decree also contains a rejection of the request for authorization concerning the assignment of the stake held by BG INTERNATIONAL LIMITED, Argentine Subsidiary in the Barranca Yankowsky area to YPF S.A. Additionally, the decree mentions that its content will be submitted to the Honorable Chamber of Deputies of the Santa Cruz Province for its ratification.</font></div>
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<div style="TEXT-INDENT: 72pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Arial; FONT-SIZE: 10pt">It is important to mention that the blocks referred to in both decrees represent, in the aggregate, approximately 2.76% of the total production of YPF S.A. during the year 2011 and approximately 2.38% of the total estimated proved reserves of YPF S.A. as of December 31, 2011.</font></div>

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<div style="TEXT-INDENT: 72pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Arial; FONT-SIZE: 10pt">YPF S.A. will evaluate the scope of these decrees and it will defend its rights in all relevant matters.</font></div>

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<td width="25%"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-FAMILY: arial; FONT-SIZE: 10pt">Yours faithfully,</font> </font>
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<div style="TEXT-ALIGN: left; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-FAMILY: arial; FONT-SIZE: 10pt">Guillermo Reda</font></font></div>
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<div style="TEXT-INDENT: 27pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Date: March 21, 2012</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">By:</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">/s/ <font style="DISPLAY: inline; FONT-SIZE: 10pt">Guillermo Reda</font></font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Guillermo Reda</font></div>
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