Ecopetrol names Silvia Restrepo García Reyes acting legal chief

Silvia Restrepo García Reyes will serve in an acting capacity from October 1 while Ecopetrol says it will announce a permanent appointment once made.

Rhea-AI Filing Summary

Ecopetrol S.A. announced that Cristina Toro Restrepo, Corporate Vice President of Legal Affairs and General Secretary, would continue in that position through September 30, 2026, with her employment relationship terminated by company decision effective as of that date.

Effective October 1, 2026, Silvia Restrepo García Reyes, currently Corporate and Shareholder Affairs Manager, will assume the acting Corporate Vice President of Legal Affairs and General Secretary role. Ecopetrol says it will disclose a permanent appointment once one has been made.

Key Figures

Employees: More than 19,000 employees Hydrocarbon production: More than 60% ISA shares: 51.4%

3 metrics

Employees More than 19,000 employees Ecopetrol company profile

Hydrocarbon production More than 60% Ecopetrol's stated share of Colombia's hydrocarbon production

ISA shares 51.4% Ecopetrol's stake in ISA

Key Terms

forward-looking statements, integrated energy companies, real-time systems, coastal highway concession, +1 more

5 terms

forward-looking statements regulatory

"statements that may be considered forward-looking statements"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

integrated energy companies technical

"one of the main integrated energy companies"

real-time systems technical

"the management of real-time systems (XM)"

coastal highway concession technical

"the Barranquilla–Cartagena coastal highway concession"

strategic basins technical

"a stake in strategic basins in the American continent"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Who will lead EC's legal affairs function on an acting basis?

Silvia Restrepo García Reyes will assume the acting Corporate Vice President of Legal Affairs and General Secretary role effective October 1, 2026. She is currently Corporate and Shareholder Affairs Manager. Ecopetrol said it will disclose a permanent appointment once one has been made.

When does Cristina Toro Restrepo's role at EC end?

Cristina Toro Restrepo will continue to serve as Corporate Vice President of Legal Affairs and General Secretary through September 30, 2026, with her employment relationship terminated by company decision effective as of that date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October, 2026

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)

COLOMBIA

(Jurisdiction of incorporation or organization)

Carrera 13 No. 36 – 24

BOGOTA D.C. – COLOMBIA

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x      Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1)

Yes ¨      No x

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7)

Yes ¨      No x

Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ¨      No x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- N/A

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Ecopetrol S.A.
	By:	/s/ Alfonso Camilo Barco
		Name:	Alfonso Camilo Barco
		Title:	Chief Financial Officer

Date: October 1, 2026

 Ecopetrol Announces Changes to Senior Management

Bogotá, D.C., October 1, 2026

Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC) (the "Company") announced today that Cristina Toro Restrepo, Corporate Vice President of Legal Affairs and General Secretary, will continue to serve in that position through September 30, 2026, following the termination of her employment relationship by decision of the Company, effective as of that date.

Effective October 1, 2026, Silvia Restrepo García Reyes, currently Corporate and Shareholder Affairs Manager, will assume the role of acting Corporate Vice President of Legal Affairs and General Secretary.

The Company will disclose the appointment of a permanent Corporate Vice President of Legal Affairs and General Secretary once such appointment has been made.

The Company thanks Ms. Toro Restrepo for her leadership, contributions and accomplishments during her tenure and wishes her continued success in her future professional endeavors.

--------------------- 

Ecopetrol is the largest company in Colombia and one of the main integrated energy companies in the American continent, with more than 19,000 employees. In Colombia, it is responsible for more than 60% of the hydrocarbon production of most transportation, logistics, and hydrocarbon refining systems, and it holds leading positions in the petrochemicals and gas distribution segments. With the acquisition of 51.4% of ISA’s shares, the company participates in energy transmission, the management of real-time systems (XM), and the Barranquilla–Cartagena coastal highway concession. At the international level, Ecopetrol has a stake in strategic basins in the American continent, with drilling and exploration operations in the United States (Permian basin and the Gulf of Mexico), Brazil, and Mexico, and, through ISA and its subsidiaries, Ecopetrol holds leading positions in the power transmission business in Brazil, Chile, Peru, and Bolivia, road concessions in Chile, and the telecommunications sector.

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, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended. 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 more information, please contact:

Investor Relations Office

Email: investors@ecopetrol.com.co 

Corporate Communications (Colombia)  

Email: _noticias@ecopetrol.com.co 

 

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