<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2020-12-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001071993</issuerCik>
        <issuerName>CONTANGO OIL &amp; GAS CO</issuerName>
        <issuerTradingSymbol>MCF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001831259</rptOwnerCik>
            <rptOwnerName>DWS Growth Capital LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835526</rptOwnerCik>
            <rptOwnerName>Avondale Growth Capital LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835529</rptOwnerCik>
            <rptOwnerName>DWS Capital LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835564</rptOwnerCik>
            <rptOwnerName>No. 4 LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835574</rptOwnerCik>
            <rptOwnerName>MD Opportunities LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835528</rptOwnerCik>
            <rptOwnerName>DS Investments GP LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835552</rptOwnerCik>
            <rptOwnerName>KLS GP LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835530</rptOwnerCik>
            <rptOwnerName>JWS Investment Partnership LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835554</rptOwnerCik>
            <rptOwnerName>Schnitzer WRI GP LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835551</rptOwnerCik>
            <rptOwnerName>Schnitzer Ken L. Jr.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11 GREENWAY PLAZA, SUITE 3100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26381270</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The reported securities include 9,051,000 shares of common stock, par value $0.04 per share (the &quot;Common Stock&quot;) of Contango Oil &amp; Gas Company (the &quot;Company&quot;) directly owned by DWS Growth Capital LP (&quot;DWSGC&quot;), 9,838,710 shares of Common Stock directly owned by Avondale Growth Capital LP (&quot;AGC&quot;), 3,000,000 shares of Common Stock directly owned by DWS Capital LP (&quot;DWS Capital&quot;), 2,091,560 shares of Common Stock directly owned by JWS Investment Partnership LP (&quot;JWSIP&quot;), 400,000 shares of Common Stock directly owned by No.4 LP (&quot;No. 4&quot;) and 2,000,000 shares of Common Stock directly owned by MD Opportunities LP (&quot;MDO&quot;).  DS Investments GP LLC is the general partner of DWSGC, DWS Capital, No. 4 and MDO.  KLS GP LLC is the general partner of AGC.  Schnitzer WRI GP LLC is the general partner of JWSIP.  Ken L. Schnitzer, Jr. is the Manager of KLS GP LLC.  Douglas W. Schnitzer is the Manager of DS Investments GP LLC and Schnitzer WRI GP LLC.</footnote>
        <footnote id="F2">As a result of the relationships described herein, the Reporting Persons may be deemed a &quot;group&quot; for purposes of the Securities Exchange Act of 1934 and expressly disclaim status as a &quot;group&quot; for purposes hereof.</footnote>
    </footnotes>

    <remarks>Each of the Reporting Persons disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, or for any other purpose.</remarks>

    <ownerSignature>
        <signatureName>DWS GROWTH CAPITAL LP By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>AVONDALE GROWTH CAPITAL LP By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>DWS CAPITAL LP By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>NO 4 LP. By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>MD OPPORTUNTIES LP By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>DS INVESTMENTS GP LLC By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>KLS GP LLC By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>JWS INVESTMENT PARTNERSHIP LP By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>SCHNITZER WRI GP LLC By: /s/ Jack Kins Name: Jack Kins Its: Authorized Signatory</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ KEN L. SCHNITZER, JR.</signatureName>
        <signatureDate>2020-12-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
