As filed with the Securities and Exchange Commission on March 31, 2020 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 Commission file number: 001-34175 ECOPETROL S.A. (Exact name of Registrant as specified in its charter) | --- | --- | --- | |-------|----------------------------------------------------------------------------------|-------| | | N ...

Ecopetrol S.A. (NYSE:EC) Q2 2019 Earnings Conference Call August 13, 2019 10:30 AM ET Company Participants MarÃa Catalina Escobar – Manager of Corporate Finance and Investor Relations Felipe Bayón – Chief Executive Officer Alberto Consuegra – Executive Vice President Jorge Calvache – Exploration Vice President Jorge Osorio – Vice President of Development and Production Milena Lopez – Chief Financial Officer of Cenit Tomás Hernández – Vice President of Refining and Industrial Processes Jaime Caballero – Chie ...

Ecopetrol S.A. (NYSE:EC) Q1 2019 Earnings Conference Call May 7, 2019 10:30 AM ET Company Participants MarÃa Catalina Escobar – Head-Capital Markets Felipe Bayón – Chief Executive Officer Alberto Consuegra – Executive Vice President Jorge Calvache – Exploration Vice President Jorge Osorio – Vice President-Development and Production Milena Lopez – Chief Financial Officer of Cenit Tomás Hernández – Vice President of Refining and Industrial Processes Jaime Caballero – Chief Financial Officer Conference Call Pa ...

As filed with the Securities and Exchange Commission on April 5, 2019 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 Commission file number: 001-34175 ECOPETROL S.A. (Exact name of Registrant as specified in its charter) N/A (Translation of Registrant's name into English) REPUBLIC OF COLOMBIA (Jurisdiction of incorporation or organization) Carrer ...