<SEC-DOCUMENT>0002005848-23-000002.txt : 20231226
<SEC-HEADER>0002005848-23-000002.hdr.sgml : 20231226
<ACCEPTANCE-DATETIME>20231226130732
ACCESSION NUMBER:		0002005848-23-000002
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20231214
FILED AS OF DATE:		20231226
DATE AS OF CHANGE:		20231226

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Tien John K Jr
		CENTRAL INDEX KEY:			0002005848
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06075
		FILM NUMBER:		231512401

	MAIL ADDRESS:	
		STREET 1:		1400 DOUGLAS STREET
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68179

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNION PACIFIC CORP
		CENTRAL INDEX KEY:			0000100885
		STANDARD INDUSTRIAL CLASSIFICATION:	RAILROADS, LINE-HAUL OPERATING [4011]
		ORGANIZATION NAME:           	01 Energy & Transportation
		IRS NUMBER:				132626465
		STATE OF INCORPORATION:			UT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1400 DOUGLAS STREET
		STREET 2:		STOP 0310
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68179
		BUSINESS PHONE:		402 544 6763

	MAIL ADDRESS:	
		STREET 1:		1400 DOUGLAS STREET
		STREET 2:		STOP 0310
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68179
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2023-12-14</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000100885</issuerCik>
        <issuerName>UNION PACIFIC CORP</issuerName>
        <issuerTradingSymbol>UNP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002005848</rptOwnerCik>
            <rptOwnerName>Tien John K Jr</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1400 DOUGLAS STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OMAHA</rptOwnerCity>
            <rptOwnerState>NE</rptOwnerState>
            <rptOwnerZipCode>68179</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>By: Trevor L. Kingston, Attorney-in-Fact For: John K. Tien, Jr.</signatureName>
        <signatureDate>2023-12-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poatien.txt
<DESCRIPTION>EDGAR SUPPORTING DOCUMENT
<TEXT>

SECTION 16 OF THE
SECURITIES EXCHANGE ACT OF 1934

POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS THAT I, John K. Tien, Jr.,
a member of the Board of Directors of Union Pacific
Corporation, a Utah corporation (the "Company"), do hereby
appoint Craig V. Richardson, John A. Menicucci, Jr., Trevor L.
Kingston and Nicole M. Deardorff, and each of them acting
individually, as my true and lawful attorney-in-fact, each with
power to act without the other in full power of substitution,
to execute, deliver and file, for and on my behalf, and in my
name and in my capacity as a director of Union Pacific Corporation,
any and all Forms 3, Forms 4 or Forms 5 under Section 16 of the
Securities Exchange Act of 1934 and the rules and interpretations
promulgated thereunder, and any other documents in support thereof
or supplemental or amendatory thereto, with respect to the
ownership by or attributable to me, directly or indirectly,of
equity securities of the Company, or derivative securities
relating thereto, hereby granting to such attorneys and each
of them full power and authority to do and perform each and
every act and thing whatsoever as such attorney or attorneys
may deem necessary or advisable to carry out fully the intent
of the foregoing as I might or could do personally or in my
capacity as a director, hereby ratifying and confirming all
acts and things which such attorney or attorneys may do or cause
to be done by virtue of this Power of Attorney.

IN WITNESS WHEREOF, I have executed this Power of Attorney as of
December 20, 2024.


/s/ John K. Tien, Jr.
__________________________________
John K. Tien, Jr.

</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
