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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WLlGU73pOAIDksAXKXa4B0Zdk8a1WLAyLLChkTkUE6JysxOBtYBKKbAEZPl/wMKM
 kxuGlmm3YNda09XVIIGFnw==

<SEC-DOCUMENT>0001042167-09-000164.txt : 20090924
<SEC-HEADER>0001042167-09-000164.hdr.sgml : 20090924
<ACCEPTANCE-DATETIME>20090924143013
ACCESSION NUMBER:		0001042167-09-000164
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20090915
FILED AS OF DATE:		20090924
DATE AS OF CHANGE:		20090924

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HALLADOR PETROLEUM CO
		CENTRAL INDEX KEY:			0000788965
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				841014610
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1660 LINCOLN ST STE 2700
		CITY:			DENVER
		STATE:			CO
		ZIP:			80264
		BUSINESS PHONE:		3038395505

	MAIL ADDRESS:	
		STREET 1:		1660 LINCOLN STREET
		STREET 2:		SUITE 2700
		CITY:			DENVER
		STATE:			CO
		ZIP:			80264

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KIMBARK OIL & GAS CO /CO/
		DATE OF NAME CHANGE:	19900102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KIMBARK INC
		DATE OF NAME CHANGE:	19860624

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lubar Equity Fund, LLC
		CENTRAL INDEX KEY:			0001322415
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14731
		FILM NUMBER:		091084653

	BUSINESS ADDRESS:	
		STREET 1:		700 N. WATER STREET SUITE 1200
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202
		BUSINESS PHONE:		414-291-9000

	MAIL ADDRESS:	
		STREET 1:		700 N. WATER STREET SUITE 1200
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202

	FORMER NAME:	
		FORMER CONFORMED NAME:	Aspen Private Fund, LLC
		DATE OF NAME CHANGE:	20050331

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lubar & Co., Inc
		CENTRAL INDEX KEY:			0001473033
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14731
		FILM NUMBER:		091084652

	BUSINESS ADDRESS:	
		STREET 1:		700 NORTH WATER STREET
		STREET 2:		SUITE 1200
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202
		BUSINESS PHONE:		414-291-9000

	MAIL ADDRESS:	
		STREET 1:		700 NORTH WATER STREET
		STREET 2:		SUITE 1200
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LUBAR DAVID J
		CENTRAL INDEX KEY:			0001032385

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14731
		FILM NUMBER:		091084651

	MAIL ADDRESS:	
		STREET 1:		770 NORTH WATER STREET
		STREET 2:		ATTN:  CORPORATE SECRETARIES DEPT.
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2009-09-15</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000788965</issuerCik>
        <issuerName>HALLADOR PETROLEUM CO</issuerName>
        <issuerTradingSymbol>HCPO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001322415</rptOwnerCik>
            <rptOwnerName>Lubar Equity Fund, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>700 N. WATER STREET SUITE 1200</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MILWAUKEE</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001473033</rptOwnerCik>
            <rptOwnerName>Lubar &amp; Co., Inc</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>700 NORTH WATER STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1200</rptOwnerStreet2>
            <rptOwnerCity>MILWAUKEE</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001032385</rptOwnerCik>
            <rptOwnerName>LUBAR DAVID J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>770 NORTH WATER STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1200</rptOwnerStreet2>
            <rptOwnerCity>MILWAUKEE</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2788685</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These securities are owned by Lubar Equity Fund, LLC (&quot;LEF&quot;), which is filing this report as a joint filer with David J. Lubar (&quot;Mr. Lubar&quot;) and Lubar &amp; Co., Incorporated (&quot;Lubar &amp; Co.&quot;).  Lubar &amp; Co., as manager of LEF, and Mr. Lubar, as a director of Lubar &amp; Co., may be deemed to share voting and dispositive power as to the shares held by LEF.  Mr. Lubar and Lubar &amp; Co. disclaim beneficial ownership in the shares owned by LEF, except to the extent of their respective pecuniary interest therein.  Information regarding the joint filers is attached hereto as Exhibit 99.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Lubar Equity Fund, LLC BY /s/ David J. Lubar</signatureName>
        <signatureDate>2009-09-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Lubar &amp; Co., Incorporated BY /s/ David J. Lubar, President</signatureName>
        <signatureDate>2009-09-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ David J. Lubar</signatureName>
        <signatureDate>2009-09-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>lubarex99.txt
<DESCRIPTION>FORM 3 JOINT FILER INFORMATION
<TEXT>
Exhibit 99

FORM 3 JOINT FILER INFORMATION

Name: Lubar & Co., Incorporated

Address: 700 N. Water St., Suite 1200, Milwaukee, WI  53202

Designated Filer: Lubar Equity Fund, LLC

Issuer & Ticker Symbol: Hallador Petroleum Company  (HCPO)

Date of Event: September 15, 2009

Ownership Form: Indirect (through Lubar Equity Fund, LLC)

Signature: /s/ David J. Lubar
	   By: David J. Lubar
	   Its: President


Name: David J. Lubar

Address: c/o Lubar Equity Fund, LLC, 700 N. Water St.,
Suite 1200, Milwaukee, WI  53202

Designated Filer: Lubar Equity Fund, LLC

Issuer & Ticker Symbol: Hallador Petroleum Company  (HCPO)

Date of Event: September 15, 2009

Ownership Form: Indirect (through Lubar Equity Fund, LLC)

Signature: /s/ David J. Lubar
	   David J. Lubar




</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
