<SEC-DOCUMENT>0001628280-17-000743.txt : 20170201
<SEC-HEADER>0001628280-17-000743.hdr.sgml : 20170201
<ACCEPTANCE-DATETIME>20170201174556
ACCESSION NUMBER:		0001628280-17-000743
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:			Hochstein Ron F.
		CENTRAL INDEX KEY:			0001662029

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36204
		FILM NUMBER:		17566033

	MAIL ADDRESS:	
		STREET 1:		C/O ENERGY FUELS INC.
		STREET 2:		225 UNION BLVD., SUITE 600
		CITY:			LAKEWOOD
		STATE:			CO
		ZIP:			80228
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_148598914307148.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>0001662029</rptOwnerCik>
            <rptOwnerName>Hochstein Ron F.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ENERGY FUELS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>225 UNION BLVD., SUITE 600</rptOwnerStreet2>
            <rptOwnerCity>LAKEWOOD</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80228</rptOwnerZipCode>
            <rptOwnerStateDescription></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>4908</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.13</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>86074</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 Ron F. Hochstein</signatureName>
        <signatureDate>2017-02-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
