6-K

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 February, 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<br> Financial Officer

Date: February 19, 2026

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Ecopetrol S.A. Board of Directors Announcement

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Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC) (“Ecopetrol” or the “Company”) informs that the board of directors, in its session held on February 18 and 19, 2026, elected Ángela María Robledo Gómez and Hildebrando Vélez Galeano as chairwoman and vice chairman of the board of directors, respectively.

The board of directors also appointed members for its supporting committees as follows:

AUDIT AND RISK COMMITTEE

·	Ricardo Rodríguez Yee<br>(chairperson)
·	Ángela María Robledo<br>Gómez
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·	Luis Felipe Henao Cardona
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·	Hildebrando Vélez Galeano
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BUSINESS COMMITTEE

·	Ricardo Rodríguez Yee<br>(chairperson)
·	Alberto José Merlano Alcocer
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·	Luis Felipe Henao Cardona
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·	Hildebrando Vélez Galeano
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·	Cesar Eduardo Loza Arenas
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CORPORATE GOVERNANCE AND SUSTAINABILITY COMMITTEE

·	Luis Felipe Henao Cardona (chairperson)
·	Ángela María Robledo<br>Gómez
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·	Alberto José Merlano Alcocer
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REMUNERATION, NOMINATION, AND CULTURE COMMITTEE

·	Ángela María Robledo<br>Gómez (chairperson)
·	Cesar Eduardo Loza Arenas
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·	Luis Felipe Henao Cardona
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·	Carolina Arias Hurtado
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·	Juan Gonzalo Castaño Valderrama
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TERRITORIAL TRANSFORMATION AND HSE COMMITTEE

·	Ángela María Robledo<br>Gómez (chairperson)
·	Tatiana Roa Avendaño
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·	Hildebrando Vélez Galeano
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·	Carolina Arias Hurtado
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·	Alberto José Merlano Alcocer
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TECHNOLOGY AND INNOVATION COMMITTEE

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·	Hildebrando Vélez Galeano<br>(chairperson)
·	Ricardo Rodríguez Yee
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·	Tatiana Roa Avendaño
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·	Juan Gonzalo Castaño Valderrama
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·	Carolina Arias Hurtado
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On behalf of the Company, we express our most sincere gratitude to Dr. Álvaro Torres Macías, who served as vice chairman of the board of directors and chair of the audit and risk committee, for his outstanding work, dedication, and commitment during his tenure on the board of directors of Ecopetrol S.A. We extend our best wishes for success in his future endeavors.

Additionally, Ecopetrol welcomes the new members of the board of directors, Dr. Carolina Arias Hurtado and Drs. Juan Gonzalo Castaño Valderrama and Cesar Eduardo Loza Arenas. We extend our best wishes for a successful tenure on the board.

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Bogota D.C., February 19, 2025

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

This release contains statements that may be consideredforward-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 pressreleases, or orally, address matters that involve risks and uncertainties, including in respect of the Company’s prospects for growthand 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 ofoil & gas, our exploration, and production activities, market conditions, applicable regulations, the exchange rate, the Company’scompetitiveness and the performance of Colombia’s economy and industry, to mention a few. We do not intend and do not assume anyobligation to update these forward-looking statements.

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For more information, please contact:

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Investor Relations Office

Email: [email protected]

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Head of Corporate Communications (Colombia)

Marcela Ulloa

Email: [email protected]