<SEC-DOCUMENT>0000899243-18-003567.txt : 20180212
<SEC-HEADER>0000899243-18-003567.hdr.sgml : 20180212
<ACCEPTANCE-DATETIME>20180212173526
ACCESSION NUMBER:		0000899243-18-003567
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180208
FILED AS OF DATE:		20180212
DATE AS OF CHANGE:		20180212

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Yorktown VI Associates LLC
		CENTRAL INDEX KEY:			0001347608
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14129
		FILM NUMBER:		18597800

	BUSINESS ADDRESS:	
		STREET 1:		410 PARK AVENUE
		STREET 2:		19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-515-2100

	MAIL ADDRESS:	
		STREET 1:		410 PARK AVENUE
		STREET 2:		19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STAR GROUP, L.P.
		CENTRAL INDEX KEY:			0001002590
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-RETAIL STORES, NEC [5990]
		IRS NUMBER:				061437793
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		9 WEST BROAD STREET
		STREET 2:		SUITE 310
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06902
		BUSINESS PHONE:		2033287300

	MAIL ADDRESS:	
		STREET 1:		9 WEST BROAD STREET
		STREET 2:		SUITE 310
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06902

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STAR GROUP LP
		DATE OF NAME CHANGE:	20171025

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STAR GAS PARTNERS LP
		DATE OF NAME CHANGE:	19951025
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-02-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001002590</issuerCik>
        <issuerName>STAR GROUP, L.P.</issuerName>
        <issuerTradingSymbol>SGU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001347608</rptOwnerCik>
            <rptOwnerName>Yorktown VI Associates LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>410 PARK AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>19TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022-4407</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <transactionDate>
                <value>2018-02-08</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7118833</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>427734</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Pro rata distribution from Yorktown Energy Partners VI, L.P., Yorktown VI Company LP and the reporting person.</footnote>
        <footnote id="F2">The reporting entity disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the reporting entity is the beneficial owner of the securities for Section 16 or any other purpose.</footnote>
        <footnote id="F3">These securities are owned directly by Yorktown Energy Partners VI, L.P.  The reporting person is the general partner of Yorktown VI Company LP, the general partner of Yorktown Energy Partners VI, L.P.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Bryan H. Lawrence, Manager</signatureName>
        <signatureDate>2018-02-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
