-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0000750813-05-000130.txt : 20051020
<SEC-HEADER>0000750813-05-000130.hdr.sgml : 20051020
<ACCEPTANCE-DATETIME>20051020174112
ACCESSION NUMBER:		0000750813-05-000130
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051019
FILED AS OF DATE:		20051020
DATE AS OF CHANGE:		20051020

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SEITEL INC
		CENTRAL INDEX KEY:			0000750813
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL AND GAS FIELD EXPLORATION SERVICES [1382]
		IRS NUMBER:				760025431
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		10811 S. WESTVIEW CIRCLE
		STREET 2:		BUILDING C, SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77043
		BUSINESS PHONE:		7138818900

	MAIL ADDRESS:	
		STREET 1:		10811 S. WESTVIEW CIRCLE
		STREET 2:		BUILDING C, SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77043

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SEISMIC ENTERPRISES INC
		DATE OF NAME CHANGE:	19870814

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Smith Garis C
		CENTRAL INDEX KEY:			0001328781

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10165
		FILM NUMBER:		051148062

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		713-881-8900

	MAIL ADDRESS:	
		STREET 1:		10811 S. WESTVIEW CIRCLE DRIVE
		STREET 2:		BUILDING C, STE. 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77043
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-10-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000750813</issuerCik>
        <issuerName>SEITEL INC</issuerName>
        <issuerTradingSymbol>SELA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001328781</rptOwnerCik>
            <rptOwnerName>Smith Garis C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10811 S. WESTVIEW CIRCLE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING C, STE. 100</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77043</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President, Olympic Seismic</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.01</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2005-10-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>80000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>178000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.01</value>
            </securityTitle>
            <transactionDate>
                <value>2005-10-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>31200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>146800</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Of this grant, 60% (or 48,000 shares) represents restricted stock that vests as follows: one-third of the restricted stock vests one year from the date of grant, an additional one-third vests two years from date of grant, and the remaining one-third vests three years from the date of grant.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Garis C. Smith by /s/ Marcia H. Kendrick</signatureName>
        <signatureDate>2005-10-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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