Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC) hereby reports the retransmission of the Report on Implementation of Best Corporate Practices – Código País - of Ecopetrol S.A. with a cutoff date of December 31, 2015, in order for responses 3.1, 6.2, 8.1, 10.3, 10.6, 13.1, 16.2, 18.8, 18.22, 23.1, 29.6, 29.7, 29.12 y 31.2 to be clearer and more precise, in accordance with the principles of transparency, comprehensiveness and truthfulness of information with respect to corporate governance practices adopted and implemented by Ecopetrol S.A.