Ecopetrol Announces Timing for the Earnings Release and Webcast of the Second Quarter of 2012

BOGOTA, Colombia, July 17, 2012 /PRNewswire/ -- Ecopetrol S.A. (NYSE: EC; BVC: ECOPETROL; TSX: ECP), will release on Tuesday, July 24th, 2012, after the markets close, its results for the second quarter 2012. The earnings release will be available on the following websites: www.superfinanciera.gov.co, www.sec.gov and www.ecopetrol.com.co .

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On Wednesday, July 25th, Ecopetrol's senior management will host two webcasts to review the results of the second quarter 2012:

Spanish
1:30 p.m. Bogota
2:30 p.m. New York / Toronto

English
3:00 p.m. Bogota
4:00 p.m. New York / Toronto

The webcast will be available on Ecopetrol's website: www.ecopetrol.com.co and at the following links:

http://www.media-server.com/m/p/92pt37an (Spanish)

http://www.media-server.com/m/p/p47bt499 (English)

Please access the site 10 minutes in advance to download any necessary software. The webcast file will be available for one year following the live event.

Contacts:
Investor Relations Department
Phone: [phone]
E-mail: [e-mail]
Website: www.ecopetrol.com.co

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.

SOURCE Ecopetrol S.A.