Ecopetrol S A : Business Group Announces Third Quarter 2020 Results

MATERIAL INFORMATION

Ecopetrol announces the dates of the third quarter 2020

earnings report

Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC) ("Ecopetrol" or the "Company) announces that on October 27th, 2020 after market close, it will release its financial and operating results for the third quarter 2020. On Wednesday, October 28th, Ecopetrol's senior management will host two conference calls to review the results. Please find below the timing, dial-in and links to access the conferences:

Spanish Conference Call	English Conference Call
08:00 a.m. Col Time	10:00 a.m. Col Time
09:00 a.m. NY Time	11:00 a.m. NY Time
US Dial-in #: 1 [phone]	US Dial-in #: 1 [phone]
US Dial-in # (Toll Free): 1 [phone]	US Dial-in # (Toll Free): 1 [phone]
Local Colombia Dial-in #: 57 1 380 8041	Local Colombia Dial-in #: : 57 1 380 8041
Local Colombia Dial-in #	Local Colombia Dial-in #
(Free Toll): 01 800 9 156 924	(Free Toll): 01 800 9 156 924
Passcode: 49983406	Passcode: 49983407

To access the webcast, the following links will be available:

Spanish: https://onlinexperiences.com/Launch/QReg/ShowUUID=D468CD68-83BE-4668-9562-F5797516F2A5&LangLocaleID=1034

English: https://onlinexperiences.com/Launch/QReg/ShowUUID=9062F110-6D2B-4438-AF44-

6AFE1E7C8816

To ask a question, you will have to access through the telephone lines specified at the top of this release.

Participants from different countries may look for different international numbers to the ones mentioned above by consulting the following link:

http://web.meetme.net/r.aspx?p=12&a=UhmeMcOiiSonaP

MATERIAL INFORMATION

The earnings release, slide presentation, live webcast and replay of the conference call will be available on Ecopetrol's website: www.ecopetrol.com.co.

Please verify in advance the proper operation of the webcast in your browser. We recommend the use of the latest versions of Internet Explorer, Google Chrome and Mozilla Firefox.

Bogotá, October 20th, 2020

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This release contains statements that may be considered forward looking statements within the meaning of Section 27A of the U.S. Securities Act of 1933 and Section 21E of the U.S. Securities Exchange Act of 1934. All forward-looking statements, whether made in this release or in future filings or press releases or orally, address matters that involve risks and uncertainties, including in respect of the Company's prospects for growth and its ongoing access to capital to fund the Company's business plan, among others. Consequently, changes in the following factors, among others, could cause actual results to differ materially from those included in the forward- looking statements: market prices of oil & gas, our exploration and production activities, market conditions, applicable regulations, the exchange rate, the Company's competitiveness and the performance of Colombia's economy and industry, to mention a few. We do not intend, and do not assume any obligation to update these forward-looking statements.

For further information, please contact:

Juan Pablo Crane de Narváez

Head of Capital Markets

Phone: [phone]

E-mail:[e-mail]

Jorge Mauricio Tellez

Media Relations (Colombia)

Phone: (+ 571) 234 4329

E-mail:[e-mail]