PRESS RELEASE Ecopetrol Announces Timing for the Earnings Release and Webcast of the Third Quarter of 2014

Ecopetrol S.A. (NYSE: EC; BVC: ECOPETROL; TSX: ECP), will release on October 31st, 2014, before markets open, its results for the third quarter of 2014. The earnings release will be available on the following websites: http://www.superfinanciera.gov.co/www.superfinanciera.gov.co, http://www.sec.gov/www.sec.govand http://www.ecopetrol.com.co/www.ecopetrol.com.co

On Tuesday, November 4th, Ecopetrol's senior management will host two webcasts to review the

results of the third quarter of 2014:

Spanish: 1:30 p.m. (Bogota, New York and Toronto) English: 3:00 p.m. (Bogota, New York and Toronto)

The webcasts will be available on Ecopetrol's website http://www.ecopetrol.com.co/www.ecopetrol.com.coand on the following links:

Spanish: http://www.media-server.com/m/p/54c8j7kchttp://www.media-server.com/m/p/54c8j7kc

English: http://www.media-server.com/m/p/jsfx86z6http://www.media-server.com/m/p/jsfx86z6

Please access the site at least 10 minutes in advance to download any necessary software and to check the proper operation of the webcast in your browser. We recommend the usage of the latest

versions of Internet Explorer (11), Google Chrome and Mozilla Firefox (28).

Contacts:

Investor Relations Department

Phone: (+571) 234 5190

E-mail: investors@ecopetrol.com.co

Website: http://www.ecopetrol.com.co/www.ecopetrol.com.co

Bogota, Colombia. October 28th, 2014

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Ecopetrol is Colombia's largest integrated oil & gas company, where it accounts for 60% of total production. It is one of the top 50 oil companies in the world and the fourth largest oil company in Latin America. The Company is also involved in exploration and production activities in Brazil, Peru and the United States Gulf Coast, and owns the main refineries in Colombia, most of the network of oil and multiple purpose pipelines in the country, petrochemical plants, and is entering into the biofuels business.
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.

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