Ecopetrol board member Juan Castaño resigns

Ecopetrol S.A. reports that Mr. Juan Gonzalo Castaño Valderrama has resigned as a non-independent member of its Board of Directors for personal and professional reasons.

Rhea-AI Filing Summary

Ecopetrol S.A. reports that Mr. Juan Gonzalo Castaño Valderrama has resigned as a non-independent member of its Board of Directors for personal and professional reasons. His resignation took effect at the end of the board meeting held on May 12, 2026.

The Board will continue operating with its remaining members, preserving the quorum and voting majorities required to deliberate and make decisions under applicable regulations. The company and its Board thank Mr. Castaño Valderrama for his contributions and wish him success in his future endeavors.

Key Figures

Employees: more than 19,000 employees Hydrocarbon production share: more than 60% of Colombia’s hydrocarbon production Stake in ISA: 51.4% of ISA’s shares

3 metrics

Employees more than 19,000 employees Company workforce description

Hydrocarbon production share more than 60% of Colombia’s hydrocarbon production Market position in Colombia

Stake in ISA 51.4% of ISA’s shares Ownership stake disclosed in business description

Key Terms

non-independent member, quorum, forward-looking statements, hydrocarbon production, +1 more

5 terms

non-independent member financial

"has submitted his resignation as a non-independent member of the Board of Directors"

quorum financial

"the Board of Directors will continue to operate with its remaining members, maintaining the quorum necessary to deliberate"

A quorum is the minimum number of members needed to officially hold a meeting or make decisions. It ensures that decisions are made with enough participation to represent the group’s interests, much like a majority must be present for a vote to be valid. For investors, understanding quorum is important because it affects when and how important company or organization decisions can be legally made.

forward-looking statements financial

"This release contains statements that may be considered forward-looking statements within the meaning of Section 27A"

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.

hydrocarbon production financial

"it is responsible for more than 60% of the hydrocarbon production"

power transmission business financial

"Ecopetrol holds leading positions in the power transmission business in Brazil, Chile, Peru, and Bolivia"

FAQ

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

What board change did Ecopetrol (EC) announce in this 6-K?

Ecopetrol announced the resignation of Mr. Juan Gonzalo Castaño Valderrama as a non-independent member of its Board of Directors. His resignation took effect at the conclusion of the Board meeting held on May 12, 2026, for personal and professional reasons.

Does Ecopetrol’s Board still meet quorum requirements after the resignation?

Yes. Ecopetrol states that, following Mr. Castaño Valderrama’s resignation, the Board of Directors will continue to operate with its remaining members. It confirms the Board maintains the quorum and required majorities to deliberate and make decisions under applicable regulations.

Who resigned from Ecopetrol’s Board of Directors and what was his role?

Mr. Juan Gonzalo Castaño Valderrama resigned as a non-independent member of Ecopetrol’s Board of Directors. The company notes he cited personal and professional reasons, and the Board expressed gratitude for his contributions, availability, dedication, and expertise during his tenure.

How does Ecopetrol describe its core business in this filing?

Ecopetrol describes itself as Colombia’s largest company and a leading integrated energy firm in the Americas. It is responsible for more than 60% of Colombia’s hydrocarbon production, key transport and refining systems, and holds leading positions in petrochemicals and gas distribution segments.

What international operations and holdings does Ecopetrol highlight?

Ecopetrol highlights upstream operations in strategic basins in the Americas, including the U.S. Permian basin, Gulf of Mexico, Brazil, and Mexico. Through ISA and its subsidiaries, it also has leading positions in power transmission in Brazil, Chile, Peru, Bolivia, road concessions in Chile, and telecommunications.

What stake does Ecopetrol hold in ISA according to this document?

Ecopetrol states it acquired 51.4% of ISA’s shares. Through this majority stake, the company participates in energy transmission, real-time system management via XM, and the Barranquilla–Cartagena coastal highway concession, expanding its presence beyond traditional oil and gas activities.

What forward-looking statement caution does Ecopetrol provide?

Ecopetrol explains the release may contain forward-looking statements subject to risks and uncertainties. It cites factors such as oil and gas prices, exploration and production activities, regulations, exchange rates, competitiveness, and Colombia’s economic performance as potential drivers of differences from those statements.

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

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Accepted by SEC EDGAR 05/12/2026 - 06:10 PM EDT Learn about SEC filing dates

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 May, 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: May 12, 2026

 

Update from the Board of Directors of Ecopetrol S.A.

Bogota D.C., May 12, 2026

Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC) hereby announces that Mr. Juan Gonzalo Castaño Valderrama has submitted his resignation as a non-independent member of the Board of Directors, citing personal and professional reasons. His resignation became effective upon the conclusion of the Board of Directors meeting held today.

Following this resignation, the Board of Directors will continue to operate with its remaining members, maintaining the quorum necessary to deliberate and the majorities required to make decisions in accordance with applicable regulations.

Ecopetrol and its Board of Directors extend their gratitude to Mr. Juan Gonzalo Castaño Valderrama for his valuable contributions, as well as for his ongoing availability, dedication, and expertise demonstrated throughout his tenure.

Ecopetrol and its Board of Directors wish him continued success in his future personal and 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 

Head of Corporate Communications (Colombia)  

Marcela Ulloa  

Email: marcela.ulloa@ecopetrol.com.co 

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 EX-99.1 6.2 KB