OREANDA-NEWS. Ecopetrol S.A. (NYSE: EC; BVC: ECOPETROL; TSX: ECP), will release on October 30, 2013, after markets close, its results for the third quarter of 2013. The earnings release will be available on the following websites: www.superfinanciera.gov.co,www.sec.gov and www.ecopetrol.com.co.

On Thursday, October 31, Ecopetrol’s senior management will host two webcasts to review the results of the third quarter of 2013:

Spanish: 9:00 a.m. Bogota

10:00 a.m. New York / Toronto

English: 10:30 a.m. Bogota

11:30 a.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/otxvirse (Spanish) http://www.media-server.com/m/p/wats9au (English)

Please access the site 10 minutes in advance to download any necessary software.