<SEC-DOCUMENT>0001349436-13-000046.txt : 20130115
<SEC-HEADER>0001349436-13-000046.hdr.sgml : 20130115
<ACCEPTANCE-DATETIME>20130115172944
ACCESSION NUMBER:		0001349436-13-000046
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20130113
FILED AS OF DATE:		20130115
DATE AS OF CHANGE:		20130115

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Serota Jeffrey
		CENTRAL INDEX KEY:			0001394808

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33784
		FILM NUMBER:		13531131

	MAIL ADDRESS:	
		STREET 1:		ARES MANAGEMENT LLC
		STREET 2:		2000 AVENUE OF THE STARS, 12TH FLOOR
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90067

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SANDRIDGE ENERGY INC
		CENTRAL INDEX KEY:			0001349436
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				208084793
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		123 ROBERT S. KERR AVENUE
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73102-6406
		BUSINESS PHONE:		405-429-5500

	MAIL ADDRESS:	
		STREET 1:		123 ROBERT S. KERR AVENUE
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73102-6406

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RIATA ENERGY INC
		DATE OF NAME CHANGE:	20060111
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-01-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001349436</issuerCik>
        <issuerName>SANDRIDGE ENERGY INC</issuerName>
        <issuerTradingSymbol>SD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001394808</rptOwnerCik>
            <rptOwnerName>Serota Jeffrey</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ARES MANAGEMENT LLC</rptOwnerStreet1>
            <rptOwnerStreet2>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2013-01-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4271</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>74975</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The transaction reported was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on July 8, 2011, pursuant to which the reporting person has transferred such shares to Ares Management LLC (Ares Management).  The trading plan related to the requirements described in footnotes (2) and (3) below.</footnote>
        <footnote id="F2">Jeffrey Serota is associated with Ares Management and certain entities managed by or affiliated with Ares Management (together with Ares Management, the Ares Entities). Pursuant to the policies of the Ares Entities, Mr. Serota holds these securities as a nominee on behalf of, and for the sole benefit of, Ares Management and has assigned all economic, pecuniary and voting rights in respect of these securities to Ares Management. Mr. Serota disclaims beneficial ownership of all shares issued in his name, including shares that previously vested, except to the extent of any pecuniary interest therein, and the filing of this Form 4 shall not be deemed an admission that Mr. Serota is the beneficial owner of, or has any interest in, any such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.</footnote>
        <footnote id="F3">Amounts reported in this Form 4 do not include any securities of the Issuer held by Ares Corporate Opportunities Fund II, L.P. (ACOF II), Ares SandRidge L.P. (Ares SandRidge) and Ares SandRidge 892 Investors, L.P. (together with Ares SandRidge, the ACOF II AIVs), each of which is indirectly controlled by Ares Management.  Mr. Serota disclaims beneficial ownership of all securities of the Issuer held by ACOF II and the ACOF II AIVs, except to the extent of any pecuniary interest therein.  The amounts reported herein shall not be deemed an admission that Mr. Serota is the beneficial owner of, or has any interest in, any such securities for purpose of Section 16 of the Securities Exchange Act of 1934, as amended, or any other purpose.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Gaye A. Wilkerson, Power of Attorney</signatureName>
        <signatureDate>2013-01-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
