FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of January, 2014

Commission File Number: 001-12102

YPF Sociedad Anónima

(Exact name of registrant as specified in its charter)

Macacha Güemes 515

C1106BKK Buenos Aires, Argentina

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file

annual reports under cover of Form 20-F or Form 40-F:

Form 20-F X Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K

in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes No X

Indicate by check mark if the registrant is submitting the Form 6-K

in paper as permitted by Regulation S-T Rule 101(b)(7):

Yes No X

YPF Sociedád Anonima

TABLE OF CONTENTS

ITEM

1 Translation of letter to the Buenos Aires Stock Exchange dated January 24, 2014

TRANSLATION

Autonomous City of Buenos Aires, January 24, 2014

To the

Bolsa de Comercio de Buenos Aires

(Buenos Aires Stock Exchange)

Ref: Negotiable obligations issuance authorization.

Dear Sirs:

The purpose of this letter is to comply with the requirements of current regulations and to inform that the Board of Directors of the Company, at its meeting held on January 23, 2014, approved the issuance and placement of negotiable obligations for an amount of up to USD 1,200,000,000 or its equivalent in other currencies, in one or more classes and/or series under the Company's USD 5,000,000,000 Global Medium Term Notes Program, which was approved by the General Ordinary Shareholders’ Meeting held on April 30, 2013.

Yours faithfully,

Alejandro Cherñacov

Market Relations Officer

YPF S.A.

SIGNATURE

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.

	YPF Sociedad Anónima
Date: January 24, 2014	By:	/s/ Alejandro Cherñacov
	Name: Title:	Alejandro Cherñacov Market Relations Officer