﻿<?xml version="1.0" encoding="UTF-8"?>
<Portfolio>
  <Name>@NNQ - NFX HENRY HUB NATURAL GAS 2500 FUTURE</Name>
  <Categories>
    <PortfolioCategory>
      <Name>Year 2016</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ16</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2016</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2017</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ17</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2017</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2018</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ18</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2018</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2019</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ19</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2019</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2020</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ20</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2020</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2021</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ21</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2021</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2022</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ22</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2022</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2023</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ23</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2023</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2024</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ24</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2024</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2025</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ25</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2025</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2026</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ26</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2026</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2027</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ27</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2027</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2028</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ28</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2028</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2029</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQM29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ29</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2029</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2030</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ30</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2030</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2031</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQQ31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ31</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2031</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2032</Name>
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        <PortfolioSymbol>
          <Name>@NNQF32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQU32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQZ32</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2032</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2033</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQK33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQN33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQV33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ33</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2033</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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      </Symbols>
    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2034</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQX34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ34</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2034</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2035</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2035</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ35</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2035</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2036</Name>
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        <PortfolioSymbol>
          <Name>@NNQF36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2036</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV36</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2036</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ36</Name>
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          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2037</Name>
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        <PortfolioSymbol>
          <Name>@NNQF37</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2037</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG37</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2037</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH37</Name>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ37</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2037</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN37</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2037</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ37</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2037</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU37</Name>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV37</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2037</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ37</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2037</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2038</Name>
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        <PortfolioSymbol>
          <Name>@NNQF38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2038</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2038</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU38</Name>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ38</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2038</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2039</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQJ39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2039</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ39</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2039</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2040</Name>
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        <PortfolioSymbol>
          <Name>@NNQF40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQH40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2040</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ40</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2040</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2041</Name>
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        <PortfolioSymbol>
          <Name>@NNQF41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2041</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2041</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2041</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2041</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2041</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2041</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2041</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2041</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2041</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV41</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2041</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX41</Name>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ41</Name>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2042</Name>
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        <PortfolioSymbol>
          <Name>@NNQF42</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2042</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG42</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2042</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH42</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2042</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ42</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2042</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK42</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2042</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ42</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2042</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV42</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2042</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ42</Name>
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          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2043</Name>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG43</Name>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH43</Name>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ43</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2043</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ43</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2043</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU43</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2043</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV43</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2043</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ43</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2043</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2044</Name>
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        <PortfolioSymbol>
          <Name>@NNQF44</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2044</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG44</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2044</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH44</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2044</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ44</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2044</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK44</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2044</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2044</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2044</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2044</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV44</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2044</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX44</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2044</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ44</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2044</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2045</Name>
      <Symbols>
        <PortfolioSymbol>
          <Name>@NNQF45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
        </PortfolioSymbol>
        <PortfolioSymbol>
          <Name>@NNQG45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2045</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQX45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2045</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ45</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE DEC 2045</Description>
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          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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      <Name>Year 2046</Name>
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        <PortfolioSymbol>
          <Name>@NNQF46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2046</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2046</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2046</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2046</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQK46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2046</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQM46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUN 2046</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQN46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2046</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQQ46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE AUG 2046</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE SEP 2046</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQV46</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2046</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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        <PortfolioSymbol>
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    <PortfolioCategory>
      <Name>Year 2047</Name>
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        <PortfolioSymbol>
          <Name>@NNQF47</Name>
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          <PipSize>2</PipSize>
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        <PortfolioSymbol>
          <Name>@NNQG47</Name>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH47</Name>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ47</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE APR 2047</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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        <PortfolioSymbol>
          <Name>@NNQQ47</Name>
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        <PortfolioSymbol>
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          <Name>@NNQV47</Name>
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        <PortfolioSymbol>
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        <PortfolioSymbol>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2048</Name>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2048</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG48</Name>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQH48</Name>
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          <PipSize>2</PipSize>
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        <PortfolioSymbol>
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          <TickSize>0.001</TickSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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        <PortfolioSymbol>
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    <PortfolioCategory>
      <Name>Year 2049</Name>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <TickSize>0.001</TickSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
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          <TickSize>0.001</TickSize>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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    </PortfolioCategory>
    <PortfolioCategory>
      <Name>Year 2050</Name>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JAN 2050</Description>
          <Decimals>3</Decimals>
          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQG50</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE FEB 2050</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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          <Name>@NNQH50</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAR 2050</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQJ50</Name>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE MAY 2050</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE JUL 2050</Description>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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          <Name>@NNQQ50</Name>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQU50</Name>
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          <PipSize>2</PipSize>
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          <TickSize>0.001</TickSize>
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          <Name>@NNQV50</Name>
          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE OCT 2050</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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          <Description>NFX HENRY HUB NATURAL GAS 2500 FUTURE NOV 2050</Description>
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          <PipSize>2</PipSize>
          <PipFraction>1</PipFraction>
          <TickSize>0.001</TickSize>
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        <PortfolioSymbol>
          <Name>@NNQZ50</Name>
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