<SEC-DOCUMENT>0001375131-18-000002.txt : 20180521
<SEC-HEADER>0001375131-18-000002.hdr.sgml : 20180521
<ACCEPTANCE-DATETIME>20180521113413
ACCESSION NUMBER:		0001375131-18-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180518
FILED AS OF DATE:		20180521
DATE AS OF CHANGE:		20180521

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WHITE MICHAEL B
		CENTRAL INDEX KEY:			0001375144

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31905
		FILM NUMBER:		18848755

	MAIL ADDRESS:	
		STREET 1:		337 METAIRIE ROAD
		STREET 2:		SUITE 202
		CITY:			METAIRIE
		STATE:			LA
		ZIP:			70005

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Ottley Properties, LLC
		CENTRAL INDEX KEY:			0001375131
		STATE OF INCORPORATION:			LA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31905
		FILM NUMBER:		18848756

	BUSINESS ADDRESS:	
		STREET 1:		337 METAIRIE ROAD
		STREET 2:		SUITE 202
		CITY:			METAIRIE
		STATE:			LA
		ZIP:			70005
		BUSINESS PHONE:		504-833-7900

	MAIL ADDRESS:	
		STREET 1:		337 METAIRIE ROAD
		STREET 2:		SUITE 202
		CITY:			METAIRIE
		STATE:			LA
		ZIP:			70005

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CKX LANDS, INC.
		CENTRAL INDEX KEY:			0000352955
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				720144530
		STATE OF INCORPORATION:			LA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1508 HODGES STREET
		CITY:			LAKE CHARLES
		STATE:			LA
		ZIP:			70601
		BUSINESS PHONE:		(337) 493-2399

	MAIL ADDRESS:	
		STREET 1:		P O BOX 1864
		CITY:			LAKE CHARLES
		STATE:			LA
		ZIP:			70602

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CKX Lands Inc
		DATE OF NAME CHANGE:	20050801

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CALCASIEU REAL ESTATE & OIL CO INC
		DATE OF NAME CHANGE:	19920703
</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>2018-05-18</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000352955</issuerCik>
        <issuerName>CKX LANDS, INC.</issuerName>
        <issuerTradingSymbol>CKX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001375131</rptOwnerCik>
            <rptOwnerName>Ottley Properties, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>400 POYDRAS ST.</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 2100</rptOwnerStreet2>
            <rptOwnerCity>NEW ORLEANS</rptOwnerCity>
            <rptOwnerState>LA</rptOwnerState>
            <rptOwnerZipCode>70130</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001375144</rptOwnerCik>
            <rptOwnerName>WHITE MICHAEL B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>400 POYDRAS ST.</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 2100</rptOwnerStreet2>
            <rptOwnerCity>NEW ORLEANS</rptOwnerCity>
            <rptOwnerState>LA</rptOwnerState>
            <rptOwnerZipCode>70130</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-05-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1972</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10.43</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>369610</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares are held directly by Ottley Properties, LLC.  Michael B. White, as sole manager of Ottley Properties, LLC, may be deemed to have an indirect interest in the shares, but disclaims such interest of his pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>\s\ Michael B. White as sole manager of Ottley Properties, LLC</signatureName>
        <signatureDate>2018-05-21</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>\s\ Michael B. White</signatureName>
        <signatureDate>2018-05-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
