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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001127602-08-002582.txt : 20080423
<SEC-HEADER>0001127602-08-002582.hdr.sgml : 20080423
<ACCEPTANCE-DATETIME>20080423174036
ACCESSION NUMBER:		0001127602-08-002582
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080418
FILED AS OF DATE:		20080423
DATE AS OF CHANGE:		20080423

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ECKEL JOHN R JR
		CENTRAL INDEX KEY:			0001307962

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32329
		FILM NUMBER:		08772561

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		713-621-9547

	MAIL ADDRESS:	
		STREET 1:		2727 ALLEN PARKWAY
		STREET 2:		SUITE 1200
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77019

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Copano Energy, L.L.C.
		CENTRAL INDEX KEY:			0001297067
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		IRS NUMBER:				270065678
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2727 ALLEN PARKWAY, SUITE 1200
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77019
		BUSINESS PHONE:		713-621-9547

	MAIL ADDRESS:	
		STREET 1:		2727 ALLEN PARKWAY, SUITE 1200
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77019

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Copano Energy Holdings, L.L.C.
		DATE OF NAME CHANGE:	20040713
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-04-18</periodOfReport>

    <issuer>
        <issuerCik>0001297067</issuerCik>
        <issuerName>Copano Energy, L.L.C.</issuerName>
        <issuerTradingSymbol>CPNO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307962</rptOwnerCik>
            <rptOwnerName>ECKEL JOHN R JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2727 ALLEN PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1200</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <officerTitle>Chairman and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <transactionDate>
                <value>2008-04-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7620</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>35.25</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3761908</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Copano Partners, L.p.</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">All transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Copano Partners Trust on August 14, 2007.</footnote>
        <footnote id="F2">Mr. Eckel disclaims beneficial ownership of  1,226,345 of the common units reflected herein, which represent the portion of Copano Partners, L.P.?s holdings in which Mr. Eckel does not have a pecuniary interest.</footnote>
        <footnote id="F3">All common units reflected in this Form 4 are held by Copano Partners Trust, a Delaware statutory trust, the sole beneficiary of which is Copano Partners, L.P.  Copano Partners, L.P. retains voting and investment power with respect to the common units held by Copano Partners Trust. Mr. Eckel, as trustee of 29 grantor trusts that indirectly own all of the outstanding partnership interests of Copano Partners, L.P., shares voting and investment control over the common units beneficially owned by Copano Partners, L.P.   Mr. Eckel has the power to appoint additional trustees for 23 of the 29 grantor trusts, including each of the grantor trusts holding indirect interests in the general partner of Copano Partners, L.P.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John R. Eckel, Jr.</signatureName>
        <signatureDate>2008-04-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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