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      <repPdEnd>2020-12-31</repPdEnd>
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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>Exxon Mobil Corporation</name>
        <lei>J3WHBG0MTS7O8ZVMDC91</lei>
        <title>Exxon Mobil Corporation</title>
        <cusip>30231G102</cusip>
        <identifiers>
          <ticker value="XOM"/>
        </identifiers>
        <balance>1491030</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>66678861.6</valUSD>
        <pctVal>0.172405</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>Halliburton Company</name>
        <lei>ENYF8GB5SMQZ25S06U51</lei>
        <title>Halliburton Company</title>
        <cusip>406216101</cusip>
        <identifiers>
          <ticker value="HAL"/>
        </identifiers>
        <balance>307970</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3997450.6</valUSD>
        <pctVal>0.010336</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>Hess Corporation</name>
        <lei>UASVRYNXNK17ULIGK870</lei>
        <title>Hess Corporation</title>
        <cusip>42809H107</cusip>
        <identifiers>
          <ticker value="HES"/>
        </identifiers>
        <balance>107200</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5554032</valUSD>
        <pctVal>0.014361</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>HollyFrontier Corporation</name>
        <lei>549300J3U2WK73C9ZK26</lei>
        <title>HollyFrontier Corporation</title>
        <cusip>436106108</cusip>
        <identifiers>
          <ticker value="HFC"/>
        </identifiers>
        <balance>69300</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2023560</valUSD>
        <pctVal>0.005232</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>Kinder Morgan, Inc.</name>
        <lei>549300WR7IX8XE0TBO16</lei>
        <title>Kinder Morgan, Inc.</title>
        <cusip>49456B101</cusip>
        <identifiers>
          <ticker value="KMI"/>
        </identifiers>
        <balance>658000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>9981860</valUSD>
        <pctVal>0.025809</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 Oil Corporation</name>
        <lei>1FRVQX2CRLGC1XLP5727</lei>
        <title>Marathon Oil Corporation</title>
        <cusip>565849106</cusip>
        <identifiers>
          <ticker value="MRO"/>
        </identifiers>
        <balance>224100</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1371492</valUSD>
        <pctVal>0.003546</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 Corporation</name>
        <lei>3BNYRYQHD39K4LCKQF12</lei>
        <title>Marathon Petroleum Corporation</title>
        <cusip>56585A102</cusip>
        <identifiers>
          <ticker value="MPC"/>
        </identifiers>
        <balance>280085</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>10469577.3</valUSD>
        <pctVal>0.02707</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>National Oilwell Varco, Inc.</name>
        <lei>549300EHF3IW1AR6U008</lei>
        <title>National Oilwell Varco, Inc.</title>
        <cusip>637071101</cusip>
        <identifiers>
          <ticker value="NOV"/>
        </identifiers>
        <balance>118100</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1446725</valUSD>
        <pctVal>0.003741</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>Noble Energy, Inc.</name>
        <lei>02VFQXG2D1LR5ZH3K186</lei>
        <title>Noble Energy, Inc.</title>
        <cusip>655044105</cusip>
        <identifiers>
          <ticker value="NBL"/>
        </identifiers>
        <balance>131600</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1179136</valUSD>
        <pctVal>0.003049</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>Occidental Petroleum Corporation</name>
        <lei>IM7X0T3ECJW4C1T7ON55</lei>
        <title>Occidental Petroleum Corporation</title>
        <cusip>674599105</cusip>
        <identifiers>
          <ticker value="OXY"/>
        </identifiers>
        <balance>347051</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6351033.3</valUSD>
        <pctVal>0.016421</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>ONEOK, Inc.</name>
        <lei>2T3D6M0JSY48PSZI1Q41</lei>
        <title>ONEOK, Inc.</title>
        <cusip>682680103</cusip>
        <identifiers>
          <ticker value="OKE"/>
        </identifiers>
        <balance>180700</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6002854</valUSD>
        <pctVal>0.015521</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>Phillips 66</name>
        <lei>5493005JBO5YSIGK1814</lei>
        <title>Phillips 66</title>
        <cusip>718546104</cusip>
        <identifiers>
          <ticker value="PSX"/>
        </identifiers>
        <balance>186775</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>13429122.5</valUSD>
        <pctVal>0.034722</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>Pioneer Natural Resources Company</name>
        <lei>FY8JBF7CCL2VE4F1B628</lei>
        <title>Pioneer Natural Resources Company</title>
        <cusip>723787107</cusip>
        <identifiers>
          <ticker value="PXD"/>
        </identifiers>
        <balance>72300</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7063710</valUSD>
        <pctVal>0.018264</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>Schlumberger Limited</name>
        <lei>213800ZUA17OK3QLGM62</lei>
        <title>Schlumberger Limited</title>
        <cusip>806857108</cusip>
        <identifiers>
          <ticker value="SLB"/>
        </identifiers>
        <balance>481300</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8851107</valUSD>
        <pctVal>0.022885</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>CU</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>TechnipFMC plc</name>
        <lei>549300D5I93QWCJTCK36</lei>
        <title>TechnipFMC plc</title>
        <cusip>G87110105</cusip>
        <identifiers>
          <ticker value="FTI"/>
        </identifiers>
        <balance>120600</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>824904</valUSD>
        <pctVal>0.002133</pctVal>
        <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>Valero Energy Corporation</name>
        <lei>549300XTO5VR8SKV1V74</lei>
        <title>Valero Energy Corporation</title>
        <cusip>91913Y100</cusip>
        <identifiers>
          <ticker value="VLO"/>
        </identifiers>
        <balance>176500</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>10381730</valUSD>
        <pctVal>0.026843</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>Whiting Petroleum Corporation</name>
        <lei>52990028CHK9KUB1B293</lei>
        <title>Whiting Petroleum Corporation</title>
        <cusip>966387409</cusip>
        <identifiers>
          <ticker value="WLL"/>
        </identifiers>
        <balance>50675</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>57262.75</valUSD>
        <pctVal>0.000148</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>Williams Companies, Inc.</name>
        <lei>D71FAKCBLFS2O0RBPG08</lei>
        <title>Williams Companies, Inc.</title>
        <cusip>969457100</cusip>
        <identifiers>
          <ticker value="WMB"/>
        </identifiers>
        <balance>391500</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7446330</valUSD>
        <pctVal>0.019253</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>Air Products and Chemicals, Inc.</name>
        <lei>7QEON6Y1RL5XR3R1W237</lei>
        <title>Air Products and Chemicals, Inc.</title>
        <cusip>009158106</cusip>
        <identifiers>
          <ticker value="APD"/>
        </identifiers>
        <balance>28600</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6905756</valUSD>
        <pctVal>0.017856</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>Albemarle Corporation</name>
        <lei>HDBLS2Q6GV1LSKQPBS54</lei>
        <title>Albemarle Corporation</title>
        <cusip>012653101</cusip>
        <identifiers>
          <ticker value="ALB"/>
        </identifiers>
        <balance>11200</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>864752</valUSD>
        <pctVal>0.002236</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>Amcor plc</name>
        <lei>549300GSODGFCDQ3DI89</lei>
        <title>Amcor plc</title>
        <cusip>G0250X107</cusip>
        <identifiers>
          <ticker value="AMCR"/>
        </identifiers>
        <balance>154700</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1579487</valUSD>
        <pctVal>0.004084</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>JE</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avery Dennison Corporation</name>
        <lei>549300PW7VPFCYKLIV37</lei>
        <title>Avery Dennison Corporation</title>
        <cusip>053611109</cusip>
        <identifiers>
          <ticker value="AVY"/>
        </identifiers>
        <balance>6800</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>775812</valUSD>
        <pctVal>0.002006</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>Ball Corporation</name>
        <lei>0BGI85ALH27ZJP15DY16</lei>
        <title>Ball Corporation</title>
        <cusip>058498106</cusip>
        <identifiers>
          <ticker value="BLL"/>
        </identifiers>
        <balance>57500</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3995675</valUSD>
        <pctVal>0.010331</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>Celanese Corporation</name>
        <lei>549300FHJQTDPPN41627</lei>
        <title>Celanese Corporation</title>
        <cusip>150870103</cusip>
        <identifiers>
          <ticker value="CE"/>
        </identifiers>
        <balance>9400</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>811596</valUSD>
        <pctVal>0.002098</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>CF Industries Holdings, Inc.</name>
        <lei>529900CG8YAQFZ2JMV97</lei>
        <title>CF Industries Holdings, Inc.</title>
        <cusip>125269100</cusip>
        <identifiers>
          <ticker value="CF"/>
        </identifiers>
        <balance>29200</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>821688</valUSD>
        <pctVal>0.002125</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>Corteva Inc.</name>
        <lei>549300WZN9I2QKLS0O94</lei>
        <title>Corteva Inc.</title>
        <cusip>22052L104</cusip>
        <identifiers>
          <ticker value="CTVA"/>
        </identifiers>
        <balance>81945</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2195306.55</valUSD>
        <pctVal>0.005676</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>Dow, Inc.</name>
        <lei>5493003S21INSLK2IP73</lei>
        <title>Dow, Inc.</title>
        <cusip>260557103</cusip>
        <identifiers>
          <ticker value="DOW"/>
        </identifiers>
        <balance>81345</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3315622.2</valUSD>
        <pctVal>0.008573</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>DuPont de Nemours, Inc.</name>
        <lei>N/A</lei>
        <title>DuPont de Nemours, Inc.</title>
        <cusip>26614N102</cusip>
        <identifiers>
          <ticker value="DD"/>
        </identifiers>
        <balance>87145</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4630013.85</valUSD>
        <pctVal>0.011971</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>Eastman Chemical Company</name>
        <lei>FDPVHDGJ1IQZFK9KH630</lei>
        <title>Eastman Chemical Company</title>
        <cusip>277432100</cusip>
        <identifiers>
          <ticker value="EMN"/>
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        <balance>11000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>766040</valUSD>
        <pctVal>0.001981</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>Ecolab Inc.</name>
        <lei>82DYEISM090VG8LTLS26</lei>
        <title>Ecolab Inc.</title>
        <cusip>278865100</cusip>
        <identifiers>
          <ticker value="ECL"/>
        </identifiers>
        <balance>34400</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6843880</valUSD>
        <pctVal>0.017696</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>FMC Corporation</name>
        <lei>CKDHZ2X64EEBQCSP7013</lei>
        <title>FMC Corporation</title>
        <cusip>302491303</cusip>
        <identifiers>
          <ticker value="FMC"/>
        </identifiers>
        <balance>41900</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4174078</valUSD>
        <pctVal>0.010793</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>Freeport-McMoRan, Inc.</name>
        <lei>549300IRDTHJQ1PVET45</lei>
        <title>Freeport-McMoRan, Inc.</title>
        <cusip>35671D857</cusip>
        <identifiers>
          <ticker value="FCX"/>
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        <balance>383200</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4433624</valUSD>
        <pctVal>0.011464</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 Flavors &amp; Fragrances Inc.</name>
        <lei>BZLRL03D3GPGMOGFO832</lei>
        <title>International Flavors &amp; Fragrances Inc.</title>
        <cusip>459506101</cusip>
        <identifiers>
          <ticker value="IFF"/>
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        <balance>10400</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1273584</valUSD>
        <pctVal>0.003293</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 Paper Company</name>
        <lei>824LMFJDH41EY779Q875</lei>
        <title>International Paper Company</title>
        <cusip>460146103</cusip>
        <identifiers>
          <ticker value="IP"/>
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        <balance>40700</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1433047</valUSD>
        <pctVal>0.003705</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>Linde plc</name>
        <lei>N/A</lei>
        <title>Linde plc</title>
        <cusip>G5494J103</cusip>
        <identifiers>
          <ticker value="LIN-USA"/>
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        <balance>98700</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>20935257</valUSD>
        <pctVal>0.05413</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>IE</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>LyondellBasell Industries N.V.</name>
        <lei>BN6WCCZ8OVP3ITUUVN49</lei>
        <title>LyondellBasell Industries N.V.</title>
        <cusip>N53745100</cusip>
        <identifiers>
          <ticker value="LYB"/>
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        <balance>77900</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5119588</valUSD>
        <pctVal>0.013237</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>Martin Marietta Materials, Inc.</name>
        <lei>5299005MZ4WZECVATV08</lei>
        <title>Martin Marietta Materials, Inc.</title>
        <cusip>573284106</cusip>
        <identifiers>
          <ticker value="MLM"/>
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        <balance>9900</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2045043</valUSD>
        <pctVal>0.005288</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>Mosaic Company</name>
        <lei>2YD5STGSJNMUB7H76907</lei>
        <title>Mosaic Company</title>
        <cusip>61945C103</cusip>
        <identifiers>
          <ticker value="MOS"/>
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        <balance>38701</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>484149.51</valUSD>
        <pctVal>0.001252</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>Newmont Corporation</name>
        <lei>549300VSP3RIX7FGDZ51</lei>
        <title>Newmont Corporation</title>
        <cusip>651639106</cusip>
        <identifiers>
          <ticker value="NEM"/>
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        <balance>114500</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7069230</valUSD>
        <pctVal>0.018278</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>Nucor Corporation</name>
        <lei>549300GGJCRSI2TIEJ46</lei>
        <title>Nucor Corporation</title>
        <cusip>670346105</cusip>
        <identifiers>
          <ticker value="NUE"/>
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        <balance>72700</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3010507</valUSD>
        <pctVal>0.007784</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>Packaging Corporation of America</name>
        <lei>549300XZP8MFZFY8TJ84</lei>
        <title>Packaging Corporation of America</title>
        <cusip>695156109</cusip>
        <identifiers>
          <ticker value="PKG"/>
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        <balance>30500</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3043900</valUSD>
        <pctVal>0.00787</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>PPG Industries, Inc.</name>
        <lei>549300BKPEP01R3V6C59</lei>
        <title>PPG Industries, Inc.</title>
        <cusip>693506107</cusip>
        <identifiers>
          <ticker value="PPG"/>
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        <balance>25900</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2746954</valUSD>
        <pctVal>0.007103</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>
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      <invstOrSec>
        <name>Sealed Air Corporation</name>
        <lei>Q0M0CZB4YN6JZ65WXI09</lei>
        <title>Sealed Air Corporation</title>
        <cusip>81211K100</cusip>
        <identifiers>
          <ticker value="SEE"/>
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        <balance>16400</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>538740</valUSD>
        <pctVal>0.001393</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>Sherwin-Williams Company</name>
        <lei>Z15BMIOX8DDH0X2OBP21</lei>
        <title>Sherwin-Williams Company</title>
        <cusip>824348106</cusip>
        <identifiers>
          <ticker value="SHW"/>
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        <balance>17500</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>10112375</valUSD>
        <pctVal>0.026147</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>Vulcan Materials Company</name>
        <lei>549300Q8LSNHAVWBNI21</lei>
        <title>Vulcan Materials Company</title>
        <cusip>929160109</cusip>
        <identifiers>
          <ticker value="VMC"/>
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        <balance>12200</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1413370</valUSD>
        <pctVal>0.003654</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>WestRock Company</name>
        <lei>549300JEB576INN13W07</lei>
        <title>WestRock Company</title>
        <cusip>96145D105</cusip>
        <identifiers>
          <ticker value="WRK"/>
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        <balance>27500</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>777150</valUSD>
        <pctVal>0.002009</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>Utilities Select Sector SPDR Fund</name>
        <lei>549300ERQDM80PRYUH21</lei>
        <title>Utilities Select Sector SPDR Fund</title>
        <cusip>81369Y886</cusip>
        <identifiers>
          <ticker value="XLU"/>
        </identifiers>
        <balance>53900</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3041577</valUSD>
        <pctVal>0.007864</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Morgan Stanley Institutional Liquidity Funds Prime Portfolio</name>
        <lei>N/A</lei>
        <title>Morgan Stanley Institutional Liquidity Funds Prime Portfolio</title>
        <cusip>61747C715</cusip>
        <identifiers>
          <ticker value="MPFXX"/>
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        <balance>2899130.261</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2900000.000078</valUSD>
        <pctVal>0.007498</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Northern Institutional Treasury Portfolio</name>
        <lei>N/A</lei>
        <title>Northern Institutional Treasury Portfolio</title>
        <cusip>665279808</cusip>
        <identifiers>
          <ticker value="NITXX"/>
        </identifiers>
        <balance>444886</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>444886</valUSD>
        <pctVal>0.00115</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2020-08-28</ncom:dateSigned>
      <ncom:nameOfApplicant>Adams Natural Resources Fund, Inc.</ncom:nameOfApplicant>
      <ncom:signature>Christy Sloan</ncom:signature>
      <ncom:signerName>Christy Sloan</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
