<SEC-DOCUMENT>0001140361-12-042491.txt : 20121002
<SEC-HEADER>0001140361-12-042491.hdr.sgml : 20121002
<ACCEPTANCE-DATETIME>20121002170642
ACCESSION NUMBER:		0001140361-12-042491
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20121002
FILED AS OF DATE:		20121002
DATE AS OF CHANGE:		20121002

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cline Christopher
		CENTRAL INDEX KEY:			0001385281

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31465
		FILM NUMBER:		121124383

	MAIL ADDRESS:	
		STREET 1:		C/O CLINE RESOURCE & DEVELOPMENT CO
		STREET 2:		3801 PGA BOULEVARD, SUITE 903
		CITY:			PALM BEACH GARDENS
		STATE:			FL
		ZIP:			33410

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATURAL RESOURCE PARTNERS LP
		CENTRAL INDEX KEY:			0001171486
		STANDARD INDUSTRIAL CLASSIFICATION:	BITUMINOUS COAL & LIGNITE SURFACE MINING [1221]
		IRS NUMBER:				352164875
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		601 JEFFERSON STREET
		STREET 2:		SUITE 3600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		713-751-7516

	MAIL ADDRESS:	
		STREET 1:		601 JEFFERSON STREET
		STREET 2:		SUITE 3600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2012-10-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001171486</issuerCik>
        <issuerName>NATURAL RESOURCE PARTNERS LP</issuerName>
        <issuerTradingSymbol>NRP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001385281</rptOwnerCik>
            <rptOwnerName>Cline Christopher</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CLINE RESOURCE AND DEVELOPMENT COMP</rptOwnerStreet1>
            <rptOwnerStreet2>3801 PGA BOULEVARD, SUITE 903</rptOwnerStreet2>
            <rptOwnerCity>PALM BEACH GARDENS</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33410</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle></officerTitle>
            <otherText>Owns entity w/ director right</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2012-10-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1980156</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2020756</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10596917</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On October 2, 2012, Adena Minerals, LLC (&quot;Adena&quot;) effected an in-kind distribution of 6,049,155 common units (the &quot;Distributed Units&quot;) to its sole member, Foresight Reserves, L.P. (&quot;Foresight&quot;), for no additional consideration.  Foresight immediately thereafter effected an in-kind distribution of all of the Distributed Units to its direct and indirect owners, for no additional consideration, including the distribution of 1,980,156 common units to Insight Resource, LLC (&quot;Insight&quot;), the general partner of Foresight.  Insight immediately thereafter effected an in-kind distribution of 1,980,156 common units to its managing member, Cline Resource and Development Company (&quot;CRDC&quot;), for no additional consideration.  CRDC immediately thereafter effected an in-kind distribution of 1,980,156 common units to its sole shareholder, the reporting person, for no additional consideration.  [Continued in Footnote 2]</footnote>
        <footnote id="F2">[Footnote 1 continued]  The Distributed Units had previously been indirectly beneficially owned by the reporting person through his being deemed to share voting and dispositive control over the common units held of record by Adena.</footnote>
        <footnote id="F3">The number of common units directly beneficially owned by the reporting person includes the 1,980,156 common units referenced in footnote (1) above, as well as 600 common units acquired by the reporting person on or about February 10, 2004 which were omitted from the reporting person's original Form 3 filed on January 12, 2007 and were also omitted from the subsequent Form 4s filed by the reporting person after his original Form 3 was filed.</footnote>
        <footnote id="F4">These common units are owned of record by Adena. The reporting person is deemed to share voting and dispositive control with CRDC, Insight, Foresight and Adena over the common units owned of record by Adena.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Christopher Cline, Authorized Representative</signatureName>
        <signatureDate>2012-10-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
