Ecopetrol names interim commercial, marketing VP

Ecopetrol announces the mutually agreed departure of its Commercial and Marketing Vice President and appoints an experienced internal executive as interim replacement.

Rhea-AI Filing Summary

Ecopetrol S.A. (EC) reports a senior management change in its commercial area. Vice President of Commercial and Marketing Julio César Herrera Martínez stepped down effective September 15, 2026 following a mutually agreed termination of his employment relationship with the company.

Effective September 16, 2026, Graford Santamaría Valbuena, currently Hydrocarbons Finance Director, will assume the responsibilities of Vice President of Commercial and Marketing on an interim basis. The company highlights his more than 20 years of experience in the financial and energy sectors, including 18 years in leadership roles at Ecopetrol across the hydrocarbons value chain. Ecopetrol also reiterates its position as Colombia’s largest company, responsible for more than 60% of domestic hydrocarbon production and holding 51.4% of ISA’s shares.

Key Figures

Departure effective date: September 15, 2026 Interim appointment effective date: September 16, 2026 Experience in financial and energy sectors: More than 20 years +4 more

7 metrics

Departure effective date September 15, 2026 Date when Julio César Herrera Martínez stepped down as Vice President of Commercial and Marketing

Interim appointment effective date September 16, 2026 Date when Graford Santamaría Valbuena assumes responsibilities on an interim basis

Experience in financial and energy sectors More than 20 years Professional experience of Graford Santamaría Valbuena

Leadership experience at Ecopetrol 18 years Years Graford Santamaría Valbuena has held leadership positions at Ecopetrol

Employees More than 19,000 Ecopetrol’s workforce size

Share of Colombia hydrocarbon production More than 60% Portion of Colombian hydrocarbon production for which Ecopetrol is responsible

Ownership of ISA 51.4% Stake Ecopetrol holds in ISA’s shares

Key Terms

forward-looking statements, hydrocarbons value chain, upstream, midstream, +2 more

6 terms

forward-looking statements regulatory

"This release contains 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.

hydrocarbons value chain technical

"experience spanning the hydrocarbons value chain across upstream, midstream, and downstream"

upstream technical

"experience spanning the hydrocarbons value chain across upstream, midstream, and downstream"

Upstream describes the early stages of a company's value chain where raw materials are found, sourced, or initially produced — for example exploration and extraction in energy, or initial biological growth in pharmaceutical manufacturing. It matters to investors because upstream activities are often capital-intensive, higher risk and control the supply and quality of inputs; changes here can drive big swings in costs, production volumes and future revenue potential, much like finding or losing a key ingredient before you cook a meal.

midstream technical

"experience spanning the hydrocarbons value chain across upstream, midstream, and downstream"

Midstream refers to the phase in the energy supply chain that involves the transportation, storage, and processing of oil and natural gas after extraction from the ground, but before they are refined into usable products. For investors, midstream companies are important because they often generate steady income through fees for moving and storing energy resources, making them a key link between resource producers and consumers.

downstream technical

"experience spanning the hydrocarbons value chain across upstream, midstream, and downstream"

Downstream describes the later stages of a product’s journey after it is made—things like processing, distribution, marketing and sales—similar to the tail end of an assembly line or the flow of a river after the source. For investors it matters because performance in downstream activities determines how quickly and profitably a product reaches customers, how much margin a company keeps, and where operational or regulatory risks can affect revenue and costs.

power transmission technical

"Ecopetrol holds leading positions in the power transmission business"

Power transmission is the network of high-voltage lines, substations and equipment that carries electricity from where it’s generated to the local distribution systems that deliver it to homes and businesses. Think of it as the highway system for electricity; its condition and capacity determine how reliably power flows, how costly upgrades are, and how easily new energy sources can connect—factors that directly affect utility revenues, capital spending and long-term investor returns.

FAQ

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

What senior management change did Ecopetrol (EC) announce in this Form 6-K?

Ecopetrol announced that Julio César Herrera Martínez stepped down as Vice President of Commercial and Marketing effective September 15, 2026, and that Graford Santamaría Valbuena will assume the role’s responsibilities on an interim basis starting September 16, 2026.

Who is Ecopetrol’s interim Vice President of Commercial and Marketing?

The interim Vice President of Commercial and Marketing is Graford Santamaría Valbuena, previously Hydrocarbons Finance Director. He has more than 20 years of experience in the financial and energy sectors, including 18 years in leadership positions at Ecopetrol.

Why is the Ecopetrol executive leaving the Vice President of Commercial and Marketing role?

Ecopetrol states that Julio César Herrera Martínez is stepping down from the Vice President of Commercial and Marketing position effective September 15, 2026, following the termination of his employment relationship by mutual agreement with the company.

What scale of operations does Ecopetrol (EC) describe in this report?

Ecopetrol describes itself as the largest company in Colombia, with more than 19,000 employees, responsible for over 60% of the country’s hydrocarbon production, and holding 51.4% of ISA’s shares, expanding its presence in energy transmission and infrastructure.

What forward-looking statement caution does Ecopetrol (EC) include?

Ecopetrol includes a forward-looking statements disclaimer noting that its growth prospects and access to capital involve risks and uncertainties, including oil and gas prices, exploration and production activities, market conditions, regulations, exchange rates, competitiveness, and Colombia’s economic performance.

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

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Available on EDGAR 09/16/2026 - 06:03 AM Accepted by SEC EDGAR 09/15/2026 - 09:52 PM 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 September, 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:	Acting Chief Executive Officer

Date: September 15, 2026

 

Ecopetrol Reports Changes in Senior Management

Bogotá, September 15, 2026

Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC) (the "Company") announces that Mr. Julio César Herrera Martínez will step down from his position as Vice President of Commercial and Marketing, effective September 15, 2026, following the termination of his employment relationship with the Company by mutual agreement.

Effective September 16, 2026, Mr. Graford Santamaría Valbuena, currently serving as Hydrocarbons Finance Director, will assume the responsibilities of Vice President of Commercial and Marketing on an interim basis. Mr. Santamaría has more than 20 years of experience in the financial and energy sectors, including 18 years in various leadership positions at Ecopetrol, with experience spanning the hydrocarbons value chain across upstream, midstream, and downstream operations, and a strong focus on operational efficiency and sustainable value creation.

Mr. Santamaría holds a degree in Financial Engineering from Universidad Autónoma de Bucaramanga, a specialization in Finance from Universidad Externado de Colombia, and a Master's degree in Finance from Universidad de Los Andes, among other academic credentials and professional certifications.

The Company thanks Mr. Herrera Martínez for his leadership and commitment throughout his tenure and wishes him continued success in his 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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