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          <ccc>XXXXXXXX</ccc>
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      <regFileNumber>811-01027</regFileNumber>
      <regCik>0000052848</regCik>
      <regLei>549300MP6BT0L4Q61L10</regLei>
      <regStreet1>100 Vanguard Boulevard</regStreet1>
      <regCity>Malvern</regCity>
      <regStateConditional regCountry="US" regState="US-PA"/>
      <regZipOrPostalCode>19355</regZipOrPostalCode>
      <regPhone>610-669-1000</regPhone>
      <seriesName>VANGUARD ENERGY INDEX FUND</seriesName>
      <seriesId>S000004448</seriesId>
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      <repPdEnd>2020-08-31</repPdEnd>
      <repPdDate>2019-11-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
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          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Concho Resources Inc.</name>
        <lei>SYHS7HRDXLL4I0IQ8776</lei>
        <title>Concho Resources Inc.</title>
        <cusip>20605P101</cusip>
        <identifiers>
          <isin value="US20605P1012"/>
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        <balance>571209.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>41446925.04000000</valUSD>
        <pctVal>1.194742702277</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Tellurian Inc.</name>
        <lei>254900ZYXZHH5MQG6H78</lei>
        <title>Tellurian Inc.</title>
        <cusip>87968A104</cusip>
        <identifiers>
          <isin value="US87968A1043"/>
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        <balance>327302.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2386031.58000000</valUSD>
        <pctVal>0.068779380252</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="1908522"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Tidewater Inc.</name>
        <lei>N/A</lei>
        <title>Tidewater Inc.</title>
        <cusip>88642R109</cusip>
        <identifiers>
          <isin value="US88642R1095"/>
        </identifiers>
        <balance>122193.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1869552.90000000</valUSD>
        <pctVal>0.053891445062</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>World Fuel Services Corp.</name>
        <lei>D3W7PCXCBRQLL17DZ313</lei>
        <title>World Fuel Services Corp.</title>
        <cusip>981475106</cusip>
        <identifiers>
          <isin value="US9814751064"/>
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        <balance>198819.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8429925.60000000</valUSD>
        <pctVal>0.242999741998</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Texas Pacific Land Trust</name>
        <lei>529900WTH0D1S7BB4S10</lei>
        <title>Texas Pacific Land Trust</title>
        <cusip>882610108</cusip>
        <identifiers>
          <isin value="US8826101086"/>
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        <balance>18001.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12150314.98000000</valUSD>
        <pctVal>0.350243115471</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="11238417"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Northern Oil and Gas Inc.</name>
        <lei>OKFF0PIZDDMNH4UCYE51</lei>
        <title>Northern Oil and Gas Inc.</title>
        <cusip>665531109</cusip>
        <identifiers>
          <isin value="US6655311099"/>
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        <balance>785891.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1398885.98000000</valUSD>
        <pctVal>0.040324072637</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Antero Midstream Corp.</name>
        <lei>N/A</lei>
        <title>Antero Midstream Corp.</title>
        <cusip>03676B102</cusip>
        <identifiers>
          <isin value="US03676B1026"/>
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        <balance>686238.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3142970.04000000</valUSD>
        <pctVal>0.090598772168</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="2357326"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>CNX Resources Corp.</name>
        <lei>549300JK3KH8PWM3B226</lei>
        <title>CNX Resources Corp.</title>
        <cusip>12653C108</cusip>
        <identifiers>
          <isin value="US12653C1080"/>
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        <balance>597571.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4129215.61000000</valUSD>
        <pctVal>0.119028135655</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Carrizo Oil &amp; Gas Inc.</name>
        <lei>6X88M1NLGKDIRGWMPT94</lei>
        <title>Carrizo Oil &amp; Gas Inc.</title>
        <cusip>144577103</cusip>
        <identifiers>
          <isin value="US1445771033"/>
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        <balance>299173.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1917698.93000000</valUSD>
        <pctVal>0.055279295136</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>QEP Resources Inc.</name>
        <lei>Q6JQDZPXKEDQKVK58165</lei>
        <title>QEP Resources Inc.</title>
        <cusip>74733V100</cusip>
        <identifiers>
          <isin value="US74733V1008"/>
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        <balance>755491.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2470455.57000000</valUSD>
        <pctVal>0.071212973235</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Marathon Petroleum Corp.</name>
        <lei>3BNYRYQHD39K4LCKQF12</lei>
        <title>Marathon Petroleum Corp.</title>
        <cusip>56585A102</cusip>
        <identifiers>
          <isin value="US56585A1025"/>
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        <balance>1888380.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>114511363.20000000</valUSD>
        <pctVal>3.300886986888</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Chevron Corp.</name>
        <lei>N/A</lei>
        <title>Chevron Corp.</title>
        <cusip>166764100</cusip>
        <identifiers>
          <isin value="US1667641005"/>
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        <balance>5383465.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>630565255.45000000</valUSD>
        <pctVal>18.17657731018</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Transocean Ltd.</name>
        <lei>529900QO4W5DQGBGEF32</lei>
        <title>Transocean Ltd.</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="CH0048265513"/>
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        <balance>1553577.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7736813.46000000</valUSD>
        <pctVal>0.223020197790</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>CH</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Matrix Service Co.</name>
        <lei>529900VYBKSX6HD2YW58</lei>
        <title>Matrix Service Co.</title>
        <cusip>576853105</cusip>
        <identifiers>
          <isin value="US5768531056"/>
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        <balance>92979.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1946980.26000000</valUSD>
        <pctVal>0.056123354262</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Green Plains Inc.</name>
        <lei>VJ5WLTHARBSDR14KIZ98</lei>
        <title>Green Plains Inc.</title>
        <cusip>393222104</cusip>
        <identifiers>
          <isin value="US3932221043"/>
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        <balance>155480.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2371070.00000000</valUSD>
        <pctVal>0.068348100042</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Murphy Oil Corp.</name>
        <lei>QBKYQD0ODE7DC7PDIN91</lei>
        <title>Murphy Oil Corp.</title>
        <cusip>626717102</cusip>
        <identifiers>
          <isin value="US6267171022"/>
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        <balance>483321.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>11121216.21000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>McDermott International Inc.</name>
        <lei>ZAKWBIG8QLOPMZ888610</lei>
        <title>McDermott International Inc.</title>
        <cusip>580037703</cusip>
        <identifiers>
          <isin value="PAL1201471A1"/>
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        <balance>587000.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>469834.80000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>PA</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="447903.84"/>
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      <invstOrSec>
        <name>Whiting Petroleum Corp.</name>
        <lei>52990028CHK9KUB1B293</lei>
        <title>Whiting Petroleum Corp.</title>
        <cusip>966387409</cusip>
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          <isin value="US9663874090"/>
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        <balance>297746.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1363676.68000000</valUSD>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>National Oilwell Varco Inc.</name>
        <lei>549300EHF3IW1AR6U008</lei>
        <title>National Oilwell Varco Inc.</title>
        <cusip>637071101</cusip>
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          <isin value="US6370711011"/>
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        <balance>1107565.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>24975590.75000000</valUSD>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Baker Hughes Co.</name>
        <lei>N/A</lei>
        <title>Baker Hughes Co. Class A</title>
        <cusip>05722G100</cusip>
        <identifiers>
          <isin value="US05722G1004"/>
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        <balance>1800526.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>40367792.92000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Extraction Oil &amp; Gas Inc.</name>
        <lei>5493002FL3WIE1JVUP20</lei>
        <title>Extraction Oil &amp; Gas Inc.</title>
        <cusip>30227M105</cusip>
        <identifiers>
          <isin value="US30227M1053"/>
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        <balance>376911.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>542751.84000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="355824"/>
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      </invstOrSec>
      <invstOrSec>
        <name>Apergy Corp.</name>
        <lei>549300EP2909K6DYYP38</lei>
        <title>Apergy Corp.</title>
        <cusip>03755L104</cusip>
        <identifiers>
          <isin value="US03755L1044"/>
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        <balance>231251.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5906150.54000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Core Laboratories NV</name>
        <lei>724500MDYY5VBSAF5W50</lei>
        <title>Core Laboratories NV</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="NL0000200384"/>
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        <balance>134110.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5874018.00000000</valUSD>
        <pctVal>0.169323541656</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>NL</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Plains GP Holdings LP</name>
        <lei>549300O56BSKRD8FAM12</lei>
        <title>Plains GP Holdings LP Class A</title>
        <cusip>72651A207</cusip>
        <identifiers>
          <isin value="US72651A2078"/>
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        <balance>505000.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8822350.00000000</valUSD>
        <pctVal>0.254311707545</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Arch Coal Inc.</name>
        <lei>W47HVZ7Q6FXL86RELH91</lei>
        <title>Arch Coal Inc. Class A</title>
        <cusip>039380407</cusip>
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          <isin value="US0393804077"/>
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        <balance>52629.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>3900335.19000000</valUSD>
        <pctVal>0.112430463784</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Roan Resources Inc.</name>
        <lei>N/A</lei>
        <title>Roan Resources Inc.</title>
        <cusip>769755109</cusip>
        <identifiers>
          <isin value="US7697551098"/>
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        <balance>501239.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>761883.28000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Cactus Inc.</name>
        <lei>549300J3T8C9F8QFKV08</lei>
        <title>Cactus Inc. Class A</title>
        <cusip>127203107</cusip>
        <identifiers>
          <isin value="US1272031071"/>
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        <balance>144365.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4358379.35000000</valUSD>
        <pctVal>0.125633974466</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>TechnipFMC plc</name>
        <lei>549300D5I93QWCJTCK36</lei>
        <title>TechnipFMC plc</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="GB00BDSFG982"/>
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        <balance>1222122.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>23024778.48000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>GB</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Helix Energy Solutions Group Inc.</name>
        <lei>416AP2JOUTCWEGSOZW41</lei>
        <title>Helix Energy Solutions Group Inc.</title>
        <cusip>42330P107</cusip>
        <identifiers>
          <isin value="US42330P1075"/>
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        <balance>446360.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3704788.00000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Cheniere Energy Inc.</name>
        <lei>MIHC87W9WTYSYZWV1J40</lei>
        <title>Cheniere Energy Inc.</title>
        <cusip>16411R208</cusip>
        <identifiers>
          <isin value="US16411R2085"/>
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        <balance>660016.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>39957368.64000000</valUSD>
        <pctVal>1.151804978024</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Noble Corp. plc</name>
        <lei>N/A</lei>
        <title>Noble Corp. plc</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="GB00BFG3KF26"/>
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        <balance>1007854.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1068325.24000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>GB</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Callon Petroleum Co.</name>
        <lei>549300EFOWPEB0WLZW21</lei>
        <title>Callon Petroleum Co.</title>
        <cusip>13123X102</cusip>
        <identifiers>
          <isin value="US13123X1028"/>
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        <balance>720704.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2630569.60000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>RPC Inc.</name>
        <lei>N/A</lei>
        <title>RPC Inc.</title>
        <cusip>749660106</cusip>
        <identifiers>
          <isin value="US7496601060"/>
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        <balance>233922.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>902938.92000000</valUSD>
        <pctVal>0.026027978776</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="664692"/>
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      <invstOrSec>
        <name>Ring Energy Inc.</name>
        <lei>549300HMY6TJ265I8S64</lei>
        <title>Ring Energy Inc.</title>
        <cusip>76680V108</cusip>
        <identifiers>
          <isin value="US76680V1089"/>
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        <balance>355367.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>682304.64000000</valUSD>
        <pctVal>0.019668008871</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Contura Energy Inc.</name>
        <lei>N/A</lei>
        <title>Contura Energy Inc.</title>
        <cusip>21241B100</cusip>
        <identifiers>
          <isin value="US21241B1008"/>
        </identifiers>
        <balance>63804.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>425572.68000000</valUSD>
        <pctVal>0.012267492780</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Viper Energy Partners LP</name>
        <lei>5299009LINL232255G03</lei>
        <title>Viper Energy Partners LP</title>
        <cusip>92763M105</cusip>
        <identifiers>
          <isin value="US92763M1053"/>
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        <balance>3786.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>89803.92000000</valUSD>
        <pctVal>0.002588674019</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Penn Virginia Corp.</name>
        <lei>5493003S4AVU6OSXB118</lei>
        <title>Penn Virginia Corp.</title>
        <cusip>70788V102</cusip>
        <identifiers>
          <isin value="US70788V1026"/>
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        <balance>41390.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>999568.50000000</valUSD>
        <pctVal>0.028813408223</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Sanchez Energy Corp.</name>
        <lei>549300SB0HTIM17TVR61</lei>
        <title>Sanchez Energy Corp.</title>
        <cusip>79970Y105</cusip>
        <identifiers>
          <isin value="US79970Y1055"/>
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        <balance>111.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1.05000000</valUSD>
        <pctVal>0.000000030267</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>ConocoPhillips</name>
        <lei>WPTL2Z3FIYTHSP5V2253</lei>
        <title>ConocoPhillips</title>
        <cusip>20825C104</cusip>
        <identifiers>
          <isin value="US20825C1045"/>
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        <balance>2773856.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>166264928.64000000</valUSD>
        <pctVal>4.792727324057</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>N/A</name>
        <lei>N/A</lei>
        <title>RECV 874696107 REC</title>
        <cusip>N/A</cusip>
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          <other otherDesc="SECURITY NUMBER" value="TGE000002"/>
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        <balance>245000.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>-73196.82000000</valUSD>
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        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="N/A" issuerCat="OTHER"/>
        <invCountry>N/A</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <derivativeInfo>
          <swapDeriv derivCat="SWP">
            <counterparties>
              <counterpartyName>GOLDMAN SACHS INTERNATIONAL</counterpartyName>
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                <issuerName>Tallgrass Energy LP Class A</issuerName>
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            <upfrontRcpt>0</upfrontRcpt>
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          <isCashCollateral>N</isCashCollateral>
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      </invstOrSec>
      <invstOrSec>
        <name>Halliburton Co.</name>
        <lei>ENYF8GB5SMQZ25S06U51</lei>
        <title>Halliburton Co.</title>
        <cusip>406216101</cusip>
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          <isin value="US4062161017"/>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
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      <invstOrSec>
        <name>Peabody Energy Corp.</name>
        <lei>EJCO258LNNVSKAR2JX59</lei>
        <title>Peabody Energy Corp.</title>
        <cusip>704551100</cusip>
        <identifiers>
          <isin value="US7045511000"/>
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        <balance>228312.00000000</balance>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Altus Midstream Co.</name>
        <lei>N/A</lei>
        <title>Altus Midstream Co. Class A</title>
        <cusip>02215L100</cusip>
        <identifiers>
          <isin value="US02215L1008"/>
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        <balance>269316.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>519779.88000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Oceaneering International Inc.</name>
        <lei>549300L6PH74701W0R30</lei>
        <title>Oceaneering International Inc.</title>
        <cusip>675232102</cusip>
        <identifiers>
          <isin value="US6752321025"/>
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        <balance>306956.00000000</balance>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Range Resources Corp.</name>
        <lei>H3Y3WLYCX0BTO1TRW162</lei>
        <title>Range Resources Corp.</title>
        <cusip>75281A109</cusip>
        <identifiers>
          <isin value="US75281A1097"/>
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        <balance>704282.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>2457944.18000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Archrock Inc.</name>
        <lei>549300YFKOM2XNCKQU76</lei>
        <title>Archrock Inc.</title>
        <cusip>03957W106</cusip>
        <identifiers>
          <isin value="US03957W1062"/>
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        <balance>407700.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>3428757.00000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>PDC Energy Inc.</name>
        <lei>5493008W8H2T511J5Y59</lei>
        <title>PDC Energy Inc.</title>
        <cusip>69327R101</cusip>
        <identifiers>
          <isin value="US69327R1014"/>
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        <balance>199549.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4535748.77000000</valUSD>
        <pctVal>0.130746798154</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

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      <invstOrSec>
        <name>SilverBow Resources Inc.</name>
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        <isRestrictedSec>N</isRestrictedSec>

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      <invstOrSec>
        <name>W&amp;T Offshore Inc.</name>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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        <name>CONSOL Energy Inc.</name>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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        <name>Unit Corp.</name>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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        <name>California Resources Corp.</name>
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        <name>Antero Resources Corp.</name>
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        <name>Select Energy Services Inc.</name>
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        <name>N/A</name>
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        <name>SemGroup Corp.</name>
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        <name>Nine Energy Service Inc.</name>
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        <name>Exxon Mobil Corp.</name>
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        <name>FTS International Inc.</name>
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        <name>EQT Corp.</name>
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        <name>N/A</name>
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        <name>HighPoint Resources Corp.</name>
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        <name>CVR Energy Inc.</name>
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        <name>Pioneer Natural Resources Co.</name>
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        <title>Pioneer Natural Resources Co.</title>
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        <name>Diamond S Shipping Inc.</name>
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        <name>Vanguard Cmt Funds-Vanguard Market Liquidity Fund</name>
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        <name>Apache Corp.</name>
        <lei>72ZZ1XRHOOU9P9X16K08</lei>
        <title>Apache Corp.</title>
        <cusip>037411105</cusip>
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        <name>Targa Resources Corp.</name>
        <lei>5493003QENHHS261UR94</lei>
        <title>Targa Resources Corp.</title>
        <cusip>87612G101</cusip>
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        <pctVal>0.701673050716</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>US Silica Holdings Inc.</name>
        <lei>529900HOXGPM9F75C193</lei>
        <title>US Silica Holdings Inc.</title>
        <cusip>90346E103</cusip>
        <identifiers>
          <isin value="US90346E1038"/>
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        <balance>222541.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1097127.13000000</valUSD>
        <pctVal>0.031625618324</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>SEACOR Marine Holdings Inc.</name>
        <lei>5493003LNKFW1W43N030</lei>
        <title>SEACOR Marine Holdings Inc.</title>
        <cusip>78413P101</cusip>
        <identifiers>
          <isin value="US78413P1012"/>
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        <balance>75982.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>898867.06000000</valUSD>
        <pctVal>0.025910603964</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>REX American Resources Corp.</name>
        <lei>N/A</lei>
        <title>REX American Resources Corp.</title>
        <cusip>761624105</cusip>
        <identifiers>
          <isin value="US7616241052"/>
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        <balance>20559.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1888344.15000000</valUSD>
        <pctVal>0.054433118751</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Matador Resources Co.</name>
        <lei>549300CI3Q2UUK5R4G79</lei>
        <title>Matador Resources Co.</title>
        <cusip>576485205</cusip>
        <identifiers>
          <isin value="US5764852050"/>
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        <balance>336127.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4732668.16000000</valUSD>
        <pctVal>0.136423166278</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>New Fortress Energy LLC</name>
        <lei>N/A</lei>
        <title>New Fortress Energy LLC</title>
        <cusip>644393100</cusip>
        <identifiers>
          <isin value="US6443931000"/>
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        <balance>5818.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>87095.46000000</valUSD>
        <pctVal>0.002510600367</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>SM Energy Co.</name>
        <lei>84BUTVXV5ODI6BXNMH43</lei>
        <title>SM Energy Co.</title>
        <cusip>78454L100</cusip>
        <identifiers>
          <isin value="US78454L1008"/>
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        <balance>335035.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2784140.85000000</valUSD>
        <pctVal>0.080255216989</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>International Seaways Inc.</name>
        <lei>549300YUFDGFRNGBWF46</lei>
        <title>International Seaways Inc.</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="MHY410531021"/>
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        <balance>77843.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2061282.64000000</valUSD>
        <pctVal>0.059418217131</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>MH</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Jagged Peak Energy Inc.</name>
        <lei>529900LS5FRAKXSAO191</lei>
        <title>Jagged Peak Energy Inc.</title>
        <cusip>47009K107</cusip>
        <identifiers>
          <isin value="US47009K1079"/>
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        <balance>232662.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1551855.54000000</valUSD>
        <pctVal>0.044733549705</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Magnolia Oil &amp; Gas Corp.</name>
        <lei>N/A</lei>
        <title>Magnolia Oil &amp; Gas Corp. Class A</title>
        <cusip>559663109</cusip>
        <identifiers>
          <isin value="US5596631094"/>
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        <balance>340739.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3700425.54000000</valUSD>
        <pctVal>0.106667898884</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Helmerich &amp; Payne Inc.</name>
        <lei>254900NAOGHJ88RZ4C73</lei>
        <title>Helmerich &amp; Payne Inc.</title>
        <cusip>423452101</cusip>
        <identifiers>
          <isin value="US4234521015"/>
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        <balance>317098.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12534883.94000000</valUSD>
        <pctVal>0.361328641310</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Montage Resources Corp.</name>
        <lei>54930070862I62NN3X72</lei>
        <title>Montage Resources Corp.</title>
        <cusip>61179L100</cusip>
        <identifiers>
          <isin value="US61179L1008"/>
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        <balance>159657.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>788705.58000000</valUSD>
        <pctVal>0.022735106043</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Bonanza Creek Energy Inc.</name>
        <lei>IIVIHPH28S64K95M2381</lei>
        <title>Bonanza Creek Energy Inc.</title>
        <cusip>097793400</cusip>
        <identifiers>
          <isin value="US0977934001"/>
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        <balance>59509.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1039027.14000000</valUSD>
        <pctVal>0.029950836926</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Newpark Resources Inc.</name>
        <lei>54930073OHWDQW4DJN26</lei>
        <title>Newpark Resources Inc.</title>
        <cusip>651718504</cusip>
        <identifiers>
          <isin value="US6517185046"/>
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        <balance>304387.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1783707.82000000</valUSD>
        <pctVal>0.051416887956</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Renewable Energy Group Inc.</name>
        <lei>549300HPU3BD8ZI0X358</lei>
        <title>Renewable Energy Group Inc.</title>
        <cusip>75972A301</cusip>
        <identifiers>
          <isin value="US75972A3014"/>
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        <balance>135135.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2305403.10000000</valUSD>
        <pctVal>0.066455196057</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Dril-Quip Inc.</name>
        <lei>5299007REICYIJNMW197</lei>
        <title>Dril-Quip Inc.</title>
        <cusip>262037104</cusip>
        <identifiers>
          <isin value="US2620371045"/>
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        <balance>109293.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4618722.18000000</valUSD>
        <pctVal>0.133138576940</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Talos Energy Inc.</name>
        <lei>N/A</lei>
        <title>Talos Energy Inc.</title>
        <cusip>87484T108</cusip>
        <identifiers>
          <isin value="US87484T1088"/>
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        <balance>78352.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1817766.40000000</valUSD>
        <pctVal>0.052398655358</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>NexTier Oilfield Solutions Inc.</name>
        <lei>529900L27H2D4QT0IT24</lei>
        <title>NexTier Oilfield Solutions Inc.</title>
        <cusip>65290C105</cusip>
        <identifiers>
          <isin value="US65290C1053"/>
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        <balance>572298.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2741307.42000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>EnLink Midstream LLC</name>
        <lei>54930000GY1H533OBE23</lei>
        <title>EnLink Midstream LLC</title>
        <cusip>29336T100</cusip>
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          <isin value="US29336T1007"/>
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        <balance>798249.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>3791682.75000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Diamond Offshore Drilling Inc.</name>
        <lei>F14FQJ2EEHW5VPYUHL14</lei>
        <title>Diamond Offshore Drilling Inc.</title>
        <cusip>25271C102</cusip>
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          <isin value="US25271C1027"/>
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        <balance>255582.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1444038.30000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
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      <invstOrSec>
        <name>Frank's International NV</name>
        <lei>724500LJYA8QIT73H017</lei>
        <title>Frank's International NV</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="NL0010556684"/>
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        <balance>331497.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1690634.70000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>NL</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Exterran Corp.</name>
        <lei>549300PVC7ZU5RSQHZ60</lei>
        <title>Exterran Corp.</title>
        <cusip>30227H106</cusip>
        <identifiers>
          <isin value="US30227H1068"/>
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        <balance>119433.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>642549.54000000</valUSD>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Brigham Minerals Inc.</name>
        <lei>549300IQ6JCXW59RO175</lei>
        <title>Brigham Minerals Inc.</title>
        <cusip>10918L103</cusip>
        <identifiers>
          <isin value="US10918L1035"/>
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        <balance>4537.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>87836.32000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Cabot Oil &amp; Gas Corp.</name>
        <lei>FCNMH6O7VWU7LHXMK351</lei>
        <title>Cabot Oil &amp; Gas Corp.</title>
        <cusip>127097103</cusip>
        <identifiers>
          <isin value="US1270971039"/>
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        <balance>1247731.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>19888832.14000000</valUSD>
        <pctVal>0.573312423856</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Chesapeake Energy Corp.</name>
        <lei>X2MT1W32SPAZ9WSKLE78</lei>
        <title>Chesapeake Energy Corp.</title>
        <cusip>165167107</cusip>
        <identifiers>
          <isin value="US1651671075"/>
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        <balance>3701138.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2203287.45000000</valUSD>
        <pctVal>0.063511625998</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
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      </invstOrSec>
      <invstOrSec>
        <name>Parsley Energy Inc.</name>
        <lei>549300DMRA8DSL66G562</lei>
        <title>Parsley Energy Inc. Class A</title>
        <cusip>701877102</cusip>
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          <isin value="US7018771029"/>
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        <balance>814369.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12199247.62000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Vanguard Cmt Funds-Vanguard Market Liquidity Fund</name>
        <lei>1I6HV0TLSTR3A4XQ6L78</lei>
        <title>Vanguard Market Liquidity Fund</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="FAID" value="CMT001142"/>
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        <balance>85702.28490000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8571942.54000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>DMC Global Inc.</name>
        <lei>549300CBDXD1Z5MRNG02</lei>
        <title>DMC Global Inc.</title>
        <cusip>23291C103</cusip>
        <identifiers>
          <isin value="US23291C1036"/>
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        <balance>49465.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2279841.85000000</valUSD>
        <pctVal>0.065718371387</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Diamondback Energy Inc.</name>
        <lei>549300R22LSX6OHWEN64</lei>
        <title>Diamondback Energy Inc.</title>
        <cusip>25278X109</cusip>
        <identifiers>
          <isin value="US25278X1090"/>
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        <balance>445417.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>34448550.78000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Continental Resources Inc.</name>
        <lei>XXRTID9RYWOZ0UPIVR53</lei>
        <title>Continental Resources Inc./OK</title>
        <cusip>212015101</cusip>
        <identifiers>
          <isin value="US2120151012"/>
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        <balance>277444.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8567470.72000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Devon Energy Corp.</name>
        <lei>54930042348RKR3ZPN35</lei>
        <title>Devon Energy Corp.</title>
        <cusip>25179M103</cusip>
        <identifiers>
          <isin value="US25179M1036"/>
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        <balance>1221068.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>26729178.52000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Oasis Petroleum Inc.</name>
        <lei>529900FA4V2YNIKZ0M71</lei>
        <title>Oasis Petroleum Inc.</title>
        <cusip>674215108</cusip>
        <identifiers>
          <isin value="US6742151086"/>
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        <balance>928488.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2172661.92000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Forum Energy Technologies Inc.</name>
        <lei>549300SF93HLCR1REE27</lei>
        <title>Forum Energy Technologies Inc.</title>
        <cusip>34984V100</cusip>
        <identifiers>
          <isin value="US34984V1008"/>
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        <balance>434960.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>569797.60000000</valUSD>
        <pctVal>0.016424898197</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Gran Tierra Energy Inc.</name>
        <lei>549300IH2S17MAIUCM32</lei>
        <title>Gran Tierra Energy Inc.</title>
        <cusip>38500T101</cusip>
        <identifiers>
          <isin value="US38500T1016"/>
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        <balance>1326854.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1353391.08000000</valUSD>
        <pctVal>0.039012643630</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Denbury Resources Inc.</name>
        <lei>549300KCWA5W52MS5559</lei>
        <title>Denbury Resources Inc.</title>
        <cusip>247916208</cusip>
        <identifiers>
          <isin value="US2479162081"/>
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        <balance>1629263.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1607267.95000000</valUSD>
        <pctVal>0.046330859334</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Gulfport Energy Corp.</name>
        <lei>549300FJX18IDUFPHD40</lei>
        <title>Gulfport Energy Corp.</title>
        <cusip>402635304</cusip>
        <identifiers>
          <isin value="US4026353049"/>
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        <balance>538840.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1277050.80000000</valUSD>
        <pctVal>0.036812070431</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Centennial Resource Development Inc.</name>
        <lei>529900NXUJPOKU7OJ511</lei>
        <title>Centennial Resource Development Inc./DE Class A</title>
        <cusip>15136A102</cusip>
        <identifiers>
          <isin value="US15136A1025"/>
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        <balance>604691.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1868495.19000000</valUSD>
        <pctVal>0.053860955676</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Kosmos Energy Ltd.</name>
        <lei>213800YDFJ3OT9B5P157</lei>
        <title>Kosmos Energy Ltd.</title>
        <cusip>500688106</cusip>
        <identifiers>
          <isin value="US5006881065"/>
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        <balance>846916.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5056088.52000000</valUSD>
        <pctVal>0.145746031955</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>PBF Energy Inc.</name>
        <lei>2549003PBEDCSZMZIY02</lei>
        <title>PBF Energy Inc. Class A</title>
        <cusip>69318G106</cusip>
        <identifiers>
          <isin value="US69318G1067"/>
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        <balance>336403.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>10529413.90000000</valUSD>
        <pctVal>0.303519269623</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Berry Petroleum Corp.</name>
        <lei>N/A</lei>
        <title>Berry Petroleum Corp.</title>
        <cusip>08579X101</cusip>
        <identifiers>
          <isin value="US08579X1019"/>
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        <balance>225082.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1793903.54000000</valUSD>
        <pctVal>0.051710788217</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Nabors Industries Ltd.</name>
        <lei>5493008TXYN3II3PU369</lei>
        <title>Nabors Industries Ltd.</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="BMG6359F1032"/>
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        <balance>1152093.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2373311.58000000</valUSD>
        <pctVal>0.068412715483</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>BM</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>SandRidge Energy Inc.</name>
        <lei>W1MKPVGS6I5155L7VV67</lei>
        <title>SandRidge Energy Inc.</title>
        <cusip>80007P869</cusip>
        <identifiers>
          <isin value="US80007P8692"/>
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        <balance>153846.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>506153.34000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>SRC Energy Inc.</name>
        <lei>549300RFZV39PJ73PH67</lei>
        <title>SRC Energy Inc.</title>
        <cusip>78470V108</cusip>
        <identifiers>
          <isin value="US78470V1089"/>
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        <balance>769081.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2745619.17000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Delek US Holdings Inc.</name>
        <lei>5493003O53JMENV1N385</lei>
        <title>Delek US Holdings Inc.</title>
        <cusip>24665A103</cusip>
        <identifiers>
          <isin value="US24665A1034"/>
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        <balance>227761.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7814479.91000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Liberty Oilfield Services Inc.</name>
        <lei>N/A</lei>
        <title>Liberty Oilfield Services Inc. Class A</title>
        <cusip>53115L104</cusip>
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          <isin value="US53115L1044"/>
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        <balance>185198.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1637150.32000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Noble Energy Inc.</name>
        <lei>02VFQXG2D1LR5ZH3K186</lei>
        <title>Noble Energy Inc.</title>
        <cusip>655044105</cusip>
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          <isin value="US6550441058"/>
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        <balance>1367582.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>28391002.32000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Valero Energy Corp.</name>
        <lei>549300XTO5VR8SKV1V74</lei>
        <title>Valero Energy Corp.</title>
        <cusip>91913Y100</cusip>
        <identifiers>
          <isin value="US91913Y1001"/>
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        <balance>1189028.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>113540283.72000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>HollyFrontier Corp.</name>
        <lei>549300J3U2WK73C9ZK26</lei>
        <title>HollyFrontier Corp.</title>
        <cusip>436106108</cusip>
        <identifiers>
          <isin value="US4361061082"/>
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        <balance>473388.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>24403151.40000000</valUSD>
        <pctVal>0.703441498243</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>ProPetro Holding Corp.</name>
        <lei>N/A</lei>
        <title>ProPetro Holding Corp.</title>
        <cusip>74347M108</cusip>
        <identifiers>
          <isin value="US74347M1080"/>
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        <balance>269116.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2319779.92000000</valUSD>
        <pctVal>0.066869620065</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Oil States International Inc.</name>
        <lei>5493004TF4KQJGMYL777</lei>
        <title>Oil States International Inc.</title>
        <cusip>678026105</cusip>
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          <isin value="US6780261052"/>
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        <balance>186792.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2977464.48000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>TETRA Technologies Inc.</name>
        <lei>549300T5W131705EK832</lei>
        <title>TETRA Technologies Inc.</title>
        <cusip>88162F105</cusip>
        <identifiers>
          <isin value="US88162F1057"/>
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        <balance>544125.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>669273.75000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Patterson-UTI Energy Inc.</name>
        <lei>254900XGFBKIXD6G0697</lei>
        <title>Patterson-UTI Energy Inc.</title>
        <cusip>703481101</cusip>
        <identifiers>
          <isin value="US7034811015"/>
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        <balance>627826.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5612764.44000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Equitrans Midstream Corp.</name>
        <lei>549300RH0NLJNZ5SXU64</lei>
        <title>Equitrans Midstream Corp.</title>
        <cusip>294600101</cusip>
        <identifiers>
          <isin value="US2946001011"/>
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        <balance>637823.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6359095.31000000</valUSD>
        <pctVal>0.183306305772</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Southwestern Energy Co.</name>
        <lei>EFWMP121W54QV9MGOP87</lei>
        <title>Southwestern Energy Co.</title>
        <cusip>845467109</cusip>
        <identifiers>
          <isin value="US8454671095"/>
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        <balance>1719659.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3129779.38000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Hess Corp.</name>
        <lei>UASVRYNXNK17ULIGK870</lei>
        <title>Hess Corp.</title>
        <cusip>42809H107</cusip>
        <identifiers>
          <isin value="US42809H1077"/>
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        <balance>776766.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>48229400.94000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Laredo Petroleum Inc.</name>
        <lei>549300X0PTWU2QSLSL14</lei>
        <title>Laredo Petroleum Inc.</title>
        <cusip>516806106</cusip>
        <identifiers>
          <isin value="US5168061068"/>
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        <balance>557839.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1204932.24000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Tallgrass Energy LP</name>
        <lei>W2ZGZGZKY5GGNY6F3V51</lei>
        <title>Tallgrass Energy LP Class A</title>
        <cusip>874696107</cusip>
        <identifiers>
          <isin value="US8746961072"/>
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        <balance>230730.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4132374.30000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Schlumberger Ltd.</name>
        <lei>213800ZUA17OK3QLGM62</lei>
        <title>Schlumberger Ltd.</title>
        <cusip>806857108</cusip>
        <identifiers>
          <isin value="AN8068571086"/>
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        <balance>3923777.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>142040727.40000000</valUSD>
        <pctVal>4.094444215671</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>CW</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>ONEOK Inc.</name>
        <lei>2T3D6M0JSY48PSZI1Q41</lei>
        <title>ONEOK Inc.</title>
        <cusip>682680103</cusip>
        <identifiers>
          <isin value="US6826801036"/>
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        <balance>1170962.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>83196850.10000000</valUSD>
        <pctVal>2.398219636644</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Solaris Oilfield Infrastructure Inc.</name>
        <lei>529900MTK3C8Y8TIIC10</lei>
        <title>Solaris Oilfield Infrastructure Inc. Class A</title>
        <cusip>83418M103</cusip>
        <identifiers>
          <isin value="US83418M1036"/>
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        <balance>8395.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>90078.35000000</valUSD>
        <pctVal>0.002596584696</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Marathon Oil Corp.</name>
        <lei>1FRVQX2CRLGC1XLP5727</lei>
        <title>Marathon Oil Corp.</title>
        <cusip>565849106</cusip>
        <identifiers>
          <isin value="US5658491064"/>
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        <balance>2417571.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>28164702.15000000</valUSD>
        <pctVal>0.811871383053</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Covia Holdings Corp.</name>
        <lei>213800IE4YGTGVTQ1806</lei>
        <title>Covia Holdings Corp.</title>
        <cusip>22305A103</cusip>
        <identifiers>
          <isin value="US22305A1034"/>
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        <balance>280048.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>417271.52000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Williams Cos. Inc.</name>
        <lei>D71FAKCBLFS2O0RBPG08</lei>
        <title>Williams Cos. Inc.</title>
        <cusip>969457100</cusip>
        <identifiers>
          <isin value="US9694571004"/>
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        <balance>3437758.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>78105861.76000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Clean Energy Fuels Corp.</name>
        <lei>549300MTQB4VUAOPMF71</lei>
        <title>Clean Energy Fuels Corp.</title>
        <cusip>184499101</cusip>
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          <isin value="US1844991018"/>
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        <balance>570884.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1113223.80000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Kinder Morgan Inc.</name>
        <lei>549300WR7IX8XE0TBO16</lei>
        <title>Kinder Morgan Inc./DE</title>
        <cusip>49456B101</cusip>
        <identifiers>
          <isin value="US49456B1017"/>
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        <balance>5072024.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>99462390.64000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>WPX Energy Inc.</name>
        <lei>ZXZE9GCS2BB547GJW219</lei>
        <title>WPX Energy Inc.</title>
        <cusip>98212B103</cusip>
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          <isin value="US98212B1035"/>
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        <balance>1225713.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>12061015.92000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Mammoth Energy Services Inc.</name>
        <lei>549300ODHHN3MGXCQ803</lei>
        <title>Mammoth Energy Services Inc.</title>
        <cusip>56155L108</cusip>
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          <isin value="US56155L1089"/>
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        <balance>26453.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>41531.21000000</valUSD>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>SEACOR Holdings Inc.</name>
        <lei>N/A</lei>
        <title>SEACOR Holdings Inc.</title>
        <cusip>811904101</cusip>
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          <isin value="US8119041015"/>
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        <balance>56811.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>2405377.74000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Par Pacific Holdings Inc.</name>
        <lei>549300BTNS7MHSHRLR55</lei>
        <title>Par Pacific Holdings Inc.</title>
        <cusip>69888T207</cusip>
        <identifiers>
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        <balance>105700.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>2630873.00000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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        <name>Cimarex Energy Co.</name>
        <lei>11KYOFXPU1C4CQL1CL44</lei>
        <title>Cimarex Energy Co.</title>
        <cusip>171798101</cusip>
        <identifiers>
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        <balance>294824.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>13553059.28000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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        <name>EOG Resources Inc.</name>
        <lei>XWTZDRYZPBUHIQBKDB46</lei>
        <title>EOG Resources Inc.</title>
        <cusip>26875P101</cusip>
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        <balance>1643852.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>116549106.80000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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        <name>Falcon Minerals Corp.</name>
        <lei>549300OILIONON7XK623</lei>
        <title>Falcon Minerals Corp.</title>
        <cusip>30607B109</cusip>
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        <balance>164575.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1061508.75000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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        <name>KLX Energy Services Holdings Inc.</name>
        <lei>5493004D4S7MAO1H3U27</lei>
        <title>KLX Energy Services Holdings Inc.</title>
        <cusip>48253L106</cusip>
        <identifiers>
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        <balance>85301.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>481950.65000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2019-12-31</ncom:dateSigned>
      <ncom:nameOfApplicant>VANGUARD WORLD FUND</ncom:nameOfApplicant>
      <ncom:signature>Christine M. Buchanan</ncom:signature>
      <ncom:signerName>Christine M. Buchanan</ncom:signerName>
      <ncom:title>Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
