SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

September 2009

Commission File Number: 333-153452

ECOPETROL S.A.

(Exact name of registrant as specified in its Charter)

Carrera 7 No. 37 – 69

BOGOTA – COLOMBIA

(Address of registrant’s principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F x Form 40-F o

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        o 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        o No x

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

Yes        o No x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):  82-    N/A   

PRESS RELEASE

ECOPETROL S.A. RECEIVED COMMUNICATION FROM THE MINISTRY OF FINANCE

Ecopetrol S.A received a communication from the Colombian Ministry of Finance (Ministerio de Hacienda y Crédito Público) regarding the potential sale of Ecopetrol´s shares.

On that subject, the Ministry informed Ecopetrol that the Strategic Road Plan (Programa Estratégico de Autopistas – PROESA, Etapa 1) was approved by the CONPES (National Council for Economic and Social Policy) in a meeting that took place on Monday, September 21, 2009, and includes the following recommendation:

“Delegate the Ministry of Finance to gradually sell up to 10% of Nation´s shares in Ecopetrol S.A., in coordination with the competent entities, as well as to evaluate the different options for financing the strategic projects set forth in this document, taking into account the evolution of the Nation’s revenues and guaranteeing that the development of such projects does not affect the sustainability of the Nation’s medium-term indebtedness as defined in the Medium-Term Fiscal Debt Plan”

The Ministry also informed Ecopetrol that should the option of selling Ecopetrol’s shares be selected, any sale is conditioned on the finalization of Ecopetrol’s Capitalization Process pursuant to Law 1118 of 2006. For these purposes, the required diligence process relating to the corresponding legal, regulatory and statutory adjustments which could be required will be conducted.

Bogotá, September 25 de 2009

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Ecopetrol is Colombia’s largest integrated oil company and is among the top 40 oil companies in the world and the four largest oil companies in Latin America. Besides Colombia, where it accounts for 60% of total production, the Company is involved in exploration and production activities in Brazil, Peru and the United States (Gulf of Mexico). Ecopetrol has the principal refinery in Colombia, most of the network of oil and multiple purpose pipelines in the country, and it is considerably increasing its participation in biofuels.

This release contains forward-looking statements relating to the prospects of the business, estimates for operating and financial results, and those related to growth prospects of Ecopetrol. These are merely projections and, as such, are based exclusively on the expectations of management concerning the future of the business and its continued access to capital to fund the Company’s business plan. Such forward-looking statements depend, substantially, on changes in market conditions, government regulations, competitive pressures, the performance of the Colombian economy and the industry, among other factors; therefore, they are subject to change without prior notice.

Dirección de Relacionamiento con el Inversionista Tel: 2345190 – Fax: 2345648    investors@ecopetrol.com.co

www.ecopetrol.com.co

PRESS RELEASE

Contact us for any additional information:

Investor Relations

Alejandro Giraldo

Phone: +571-234-5190

Email: investors@ecopetrol.com.co

Media Relations (Colombia)

Mauricio Téllez

Phone: + 571-2345377

Fax: +571-2344480

Email: mtellez@ecopetrol.com.co

Website: www.ecopetrol.com.co

ECP – DIR – R – 001

Dirección de Relacionamiento con el Inversionista Tel: 2345190 – Fax: 2345648    investors@ecopetrol.com.co

www.ecopetrol.com.co

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, thereto duly authorized.

Date:  September 25, 2009

Ecopetrol S.A.
By:	/s/ Adriana M. Echeverri
Name:	Adriana M. Echeverri
Title:	Chief Financial Officer