<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: Hallador Alternative Assets Fund, LLC -->
          <cik>0001356544</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000788965</issuerCik>
      <issuerName>HALLADOR ENERGY CO</issuerName>
      <secFileNumber>001-34743</secFileNumber>
      <issuerAddress>
        <com:street1>1183 EAST CANVASBACK DRIVE</com:street1>
        <com:city>TERRE HAUTE</com:city>
        <com:stateOrCountry>IN</com:stateOrCountry>
        <com:zipCode>47802</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>303-839-5504</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>HALLADOR ALTERNATIVE ASSETS FUND LLC</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>AFFILIATE OF DIRECTOR</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>COMMON STOCK</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>NATIONAL FINANCIAL SERVICES LLC</name>
        <address>
          <com:street1>200 SEAPORT BLVD</com:street1>
          <com:street2>WORLD TRADE CENTER</com:street2>
          <com:city>BOSTON</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02210</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>511000</noOfUnitsSold>
      <aggregateMarketValue>12242000.00</aggregateMarketValue>
      <noOfUnitsOutstanding>42976180</noOfUnitsOutstanding>
      <approxSaleDate>08/13/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>07/23/2006</acquiredDate>
      <natureOfAcquisitionTransaction>PURCHASE FROM ISSUER</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>393932</amountOfSecuritiesAcquired>
      <paymentDate>07/23/2006</paymentDate>
      <natureOfPayment>CHECK/WIRE</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>06/30/2022</acquiredDate>
      <natureOfAcquisitionTransaction>CONVERSTON OF NOTES-dated May 2022, $1,750,000 conversion notice dated 06.30.22</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>108675</amountOfSecuritiesAcquired>
      <paymentDate>06/30/2022</paymentDate>
      <natureOfPayment>CHECK/WIRE</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>08/08/2022</acquiredDate>
      <natureOfAcquisitionTransaction>CONVERSION OF NOTE-dated 08.08.22 $1,000,000. Converted 06.28.24</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>190000</amountOfSecuritiesAcquired>
      <paymentDate>08/08/2022</paymentDate>
      <natureOfPayment>CHECK/WIRE</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Hallador Alternative Assets Fund, LLC</name>
        <address>
          <com:street1>5485 Keitzke Lane</com:street1>
          <com:city>Reno</com:city>
          <com:stateOrCountry>NV</com:stateOrCountry>
          <com:zipCode>N89511</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Hallador Alternative Assets Fund LLC</securitiesClassTitle>
      <saleDate>05/19/2025</saleDate>
      <amountOfSecuritiesSold>67457</amountOfSecuritiesSold>
      <grossProceeds>1284934.43</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/13/2025</noticeDate>
      <signature>/s/ David Hardie</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
