6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

SECURITIES EXCHANGE ACT OF 1934

For the month of May, 2019

(Commission File No. 001-34429),

PAMPA ENERGIA S.A.
(PAMPA ENERGY INC.)

Argentina

(Jurisdiction of incorporation or organization)

Maipú 1
C1084ABA
City of Buenos Aires
Argentina

(Address of principal executive offices)

(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 whether the registrant by furnishing the
information contained in this form is also thereby furnishing the
information to the Commission pursuant to Rule 12g3-2(b) under
the Securities Exchange Act of 1934.)

Yes ______ No ___X___

(If "Yes" is marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b): 82- .)

This Form 6-K for Pampa Energía S.A. (“Pampa” or the “Company”) contains:

Exhibit 1:  Letter dated May, 10th, 2019, addressed to Comisión Nacional de Valores and Bolsas y Mercados Argentinos S.A., entitled “Relevant Event – Commercial Operation Date for Pampa Energía and De la Bahía Wind Farms.”

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.

Date: May 10, 2019

Pampa Energía S.A.
By:	/s/ Gustavo Mariani
	Name: Gustavo Mariani Title:   Chief Executive Officer

FORWARD-LOOKING STATEMENTS

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates offuture economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will a ctually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.

EX-1

Buenos Aires, May 10h, 2019

COMISIÓN NACIONAL DE VALORES

BOLSAS Y MERCADOS ARGENTINOS S.A.

Ref.:Relevant Event – Commercial Operation Date for Pampa Energía and De la Bahía Wind Farms.

Dear Sirs,

I am writing to the National Securities Commission (“Comisión Nacional de Valores” or “CNV”) and Bolsas y Mercados Argentinos S.A. (“ByMA”), in my capacity as Responsible for Market Relations of Pampa Energía S.A. (the “Company”), to inform that CAMMESA, as entity in charge of the dispatch in the Wholesale Electric Market, granted the commercial commissioning to Pampa Energía Wind Farm and to the first stage of the De la Bahía Wind Farm (the “Wind Farms”) as of 0hs of the date hereof, within the scheduled timeframe set forth in the of priority dispatch.  

The Wind Farms were developed under the regulation framework for the Term Market from Renewable Energy Term Market (‘MAT ER’), and will be destined to meet the demand by large electricity consumption users through power purchase agreements (‘PPAs’) between private parties, being all of the Wind Farms’ capacity sold as of the date hereof

The Wind Farms demanded an investment of US$130 million, in line with de Company’s investment plan.

The Wind Farms have a joint installed capacity of 106.4 MW and are located in the south of the Province of Buenos Aires, in Bahia Blanca and Coronel Rosales, respectively. This new installed capacity, in addition to the Mario Cebreiro wind farm, that was commissioned on June 2018, add up as of today 206.4 MW of renewable energy developed by Pampa.

Sincerely,

_________________________________

Victoria Hitce

Head of Market Relations