<SEC-DOCUMENT>0001628280-17-000737.txt : 20170201
<SEC-HEADER>0001628280-17-000737.hdr.sgml : 20170201
<ACCEPTANCE-DATETIME>20170201174414
ACCESSION NUMBER:		0001628280-17-000737
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170201
FILED AS OF DATE:		20170201
DATE AS OF CHANGE:		20170201

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENERGY FUELS INC
		CENTRAL INDEX KEY:			0001385849
		STANDARD INDUSTRIAL CLASSIFICATION:	MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		225 UNION BLVD., SUITE 600
		CITY:			LAKEWOOD
		STATE:			CO
		ZIP:			80228
		BUSINESS PHONE:		303-974-2140

	MAIL ADDRESS:	
		STREET 1:		225 UNION BLVD., SUITE 600
		CITY:			LAKEWOOD
		STATE:			CO
		ZIP:			80228

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HIGGS DENNIS LYLE
		CENTRAL INDEX KEY:			0001134878
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			0430

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36204
		FILM NUMBER:		17566018

	MAIL ADDRESS:	
		STREET 1:		SUITE 1410
		STREET 2:		800 WEST PENDER STREET
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V6C 2V6
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_148598904114096.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-02-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001385849</issuerCik>
        <issuerName>ENERGY FUELS INC</issuerName>
        <issuerTradingSymbol>UUUU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001134878</rptOwnerCik>
            <rptOwnerName>HIGGS DENNIS LYLE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>SUITE 1410</rptOwnerStreet1>
            <rptOwnerStreet2>800 WEST PENDER STREET</rptOwnerStreet2>
            <rptOwnerCity>VANCOUVER</rptOwnerCity>
            <rptOwnerState>A1</rptOwnerState>
            <rptOwnerZipCode>V6C 2V6</rptOwnerZipCode>
            <rptOwnerStateDescription>BRITISH COLUMBIA, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2017-02-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6492</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.13</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>615414</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares were sold to satisfy income tax withholding requirements resulting from the vesting of exempt restricted stock unit grants previously reported in Table I</footnote>
        <footnote id="F2">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.11 to $2.16, inclusive. The reporting person undertakes to provide to Energy Fuels Inc., any security holder of Energy Fuels Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth above</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Peter Grandey as attorney-in-fact for Dennis Lyle Higgs</signatureName>
        <signatureDate>2017-02-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
