MATERIAL INFORMATION

Ecopetrol S.A. Transmitted the Report of Implementation of

Best Corporate Practices - Country Code [Código País]

corresponding to the year 2017

Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC) ("Ecopetrol" or the "Company) announces the transmission on January 30, 2018 of Ecopetrol's Report on Implementation of Best Corporate Practices - Country Code of December 31, 2017, related to the corporate governance practices adopted and implemented by the company.

The Country Code Survey was digitally signed by Dr. Felipe Bayón Pardo, in his capacity as Legal Representative.

For more information, you can consult the report in the following link:

https://www.ecopetrol.com.co/documentos/1800130-Encuesta-Codigo-Pais-2017.pdf

Bogota, February 2, 2018

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This release contains statements that may be considered forward looking statements within the meaning of Section 27A of the U.S. Securities Act of 1933 and Section 21E of the U.S. Securities Exchange Act of 1934. All forward-looking statements, whether made in this release or in future filings or press releases or orally, address matters that involve risks and uncertainties, including in respect of the Company's prospects for growth and its ongoing access to capital to fund the Company's business plan, among others. Consequently, changes in the following factors, among others, could cause actual results to differ materially from those included in the forward-looking statements: market prices of oil & gas, our exploration and production activities, market conditions, applicable regulations, the exchange rate, the Company's competitiveness and the performance of Colombia's economy and industry, to mention a few. We do not intend, and do not assume any obligation to update these forward-looking statements.

For further information, please contact:

Head of Corporate Finance and Investor Relations María Catalina Escobar

Phone: (+571) 234 5190

E-mail:investors@ecopetrol.com.co

Media Relations (Colombia)

Jorge Mauricio Tellez Phone: (+ 571) 234 4329

E-mail:mauricio.tellez@ecopetrol.com.co

Ecopetrol SA - Empresa Colombiana de Petroleos published this content on 02 February 2018 and is solely responsible for the information contained herein.
Distributed by Public, unedited and unaltered, on 02 February 2018 13:29:09 UTC.

Original documenthttps://www.ecopetrol.com.co/english/documentos/Encuesta código país 02 02 2018 ingles.pdf

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