<SEC-DOCUMENT>0000947871-26-000323.txt : 20260324
<SEC-HEADER>0000947871-26-000323.hdr.sgml : 20260324
<ACCEPTANCE-DATETIME>20260324211920
ACCESSION NUMBER:		0000947871-26-000323
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260318
FILED AS OF DATE:		20260324
DATE AS OF CHANGE:		20260324

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Roa Barragan Ricardo
		CENTRAL INDEX KEY:			0002122714
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34175
		FILM NUMBER:		26788147

	MAIL ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		KR 13 36-24
		STREET 2:		BOGOTA
		CITY:			BOGOTA
		NON US STATE TERRITORY:  	BOGOTA
		PROVINCE COUNTRY:   	F8
		ZIP:			110311

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ECOPETROL S.A.
		CENTRAL INDEX KEY:			0001444406
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				000000000
		STATE OF INCORPORATION:			F8
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		KR 13 36-24, BOGOTA
		CITY:			BOGOTA
		NON US STATE TERRITORY:  	BOGOTA
		PROVINCE COUNTRY:   	F8
		ZIP:			110311
		BUSINESS PHONE:		5712345000

	MAIL ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		KR 13 36-24, BOGOTA
		CITY:			BOGOTA
		NON US STATE TERRITORY:  	BOGOTA
		PROVINCE COUNTRY:   	F8
		ZIP:			110311
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>FORM 3 - BARRAGAN
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0607</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2026-03-18</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001444406</issuerCik>
        <issuerName>ECOPETROL S.A.</issuerName>
        <issuerTradingSymbol>EC</issuerTradingSymbol>
        <issuerForeignTradingSymbol>ECOPETROL</issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002122714</rptOwnerCik>
            <rptOwnerName>Roa Barragan Ricardo</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>true</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O ECOPETROL S.A.</rptOwnerStreet1>
            <rptOwnerStreet2>KR 13 36-24</rptOwnerStreet2>
            <rptOwnerCity>BOGOTA</rptOwnerCity>
            <rptOwnerNonUSStateTerritory></rptOwnerNonUSStateTerritory>
            <rptOwnerCountry>F8</rptOwnerCountry>
            <rptOwnerZipCode>110311</rptOwnerZipCode>
            <rptOwnerStateDescription>COLOMBIA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>/s/ Ricardo Roa Barragan</signatureName>
        <signatureDate>2026-03-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
