<SEC-DOCUMENT>0001562180-24-002939.txt : 20240322
<SEC-HEADER>0001562180-24-002939.hdr.sgml : 20240322
<ACCEPTANCE-DATETIME>20240322125250
ACCESSION NUMBER:		0001562180-24-002939
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20240227
FILED AS OF DATE:		20240322
DATE AS OF CHANGE:		20240322

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MILLER KENNETH ADAMS
		CENTRAL INDEX KEY:			0001763423
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12579
		FILM NUMBER:		24774474

	MAIL ADDRESS:	
		STREET 1:		C/O OGE ENERGY CORP.
		STREET 2:		PO BOX 321
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73101

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OGE ENERGY CORP.
		CENTRAL INDEX KEY:			0001021635
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		ORGANIZATION NAME:           	01 Energy & Transportation
		IRS NUMBER:				731481638
		STATE OF INCORPORATION:			OK
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		321 N HARVEY
		STREET 2:		P.O. BOX 321
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73101-0321
		BUSINESS PHONE:		4055533000

	MAIL ADDRESS:	
		STREET 1:		321 N HARVEY
		STREET 2:		P.O. BOX 321
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73101-0321

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OGE ENERGY CORP
		DATE OF NAME CHANGE:	19960827
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-02-27</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0001021635</issuerCik>
        <issuerName>OGE ENERGY CORP.</issuerName>
        <issuerTradingSymbol>OGE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001763423</rptOwnerCik>
            <rptOwnerName>MILLER KENNETH ADAMS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX 321</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OKLAHOMA CITY</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>73101</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>VP-Public &amp; Reg Affairs OG&amp;E</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock-$.01 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2024-02-27</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>I</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6961.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>33.01</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6961.00</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Retirement Savings</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock-$.01 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2024-03-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>I</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1134.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>32.85</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8095.00</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Retirement Savings</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15546.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The information herein is based on a Retirement Savings Plan Statement dated February 27, 2024. The Retirement Savings Plan Statement indicated the number of shares in the Common Stock Fund of the
Retirement Savings Plan credited to the participant's account at February 27, 2024.</footnote>
        <footnote id="F2">The information herein is based on a Retirement Savings Plan Statement dated March 1, 2024. The Retirement Savings Plan Statement indicated the number of shares in the Common Stock Fund of the
Retirement Savings Plan credited to the participant's account at March 1, 2024.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ William Sultemeier, By Power of Attorney</signatureName>
        <signatureDate>2024-03-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>miller.txt
<DESCRIPTION>POA
<TEXT>
POWER OF ATTORNEY


The undersigned hereby constitutes and appoints each of
William H. Sultemeier and Sarah R. Stafford, signing singly, the
undersigned's true and lawful attorney-in-fact to:

(1) execute for and on behalf of the undersigned, in the
undersigned's capacity as a director and/or officer of OGE
Energy Corp. (the 'Company'), Forms 3, 4 and 5 in
accordance with Section 16(a) of the Securities Exchange
Act of 1934, as amended, and the rules and regulations
thereunder:

(2) do and perform any and all acts for and on behalf of
the undersigned which may be necessary or desirable to
complete and execute any such Form 3, 4 or 5 and timely
file such form with the United States Securities and
Exchange Commission and any stock exchange or similar
authority; and

(3) take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of
such attorney-in-fact, may be of benefit to, in the best
interest of, or legally required by, the undersigned, it
being understood that the documents executed by such
attorney-in-fact on behalf of the undersigned pursuant to
this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact
may approve in his or her discretion.

The undersigned hereby grants to each attorney-in-fact
named above full power and authority to do and perform any and
every act requisite, necessary or proper to be done in the
exercise of any of the rights and powers herein granted, as
fully as the undersigned could do it personally present, with
full power of substitution or revocation, hereby ratifying and
confirming all that such attorney-in-fact, or such attorney-in-
fact's substitute or substitutes, shall lawfully do or cause to
be done by virtue of this Power of Attorney and the rights and
powers herein granted.  The undersigned acknowledges that the
foregoing attorney-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the company
assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934, as
amended.

This Power of Attorney shall remain in full force and
effect until the undersigned is no longer required to file Forms
3, 4 and 5 with respect to the undersigned's holdings of, and
transactions in, securities issued by the Company, unless
earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power
of Attorney to be executed as of this 3rd day of January 2023.


/s/ Ken A. Miller, Pursuant to Power of Attorney being
filed herewith

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