<?xml version="1.0" encoding="us-ascii"?>
<!--XBRL document created with Crossfire by Rivet Software version 4.3.96.0 http://www.rivetsoftware.com-->
<!--Based on XBRL 2.1-->
<!--Created on: 3/6/2012 4:30:06 PM-->
<!--Modified on: 3/6/2012 4:30:06 PM-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <roleRef xlink:type="simple" xlink:href="dbe-20111231.xsd#StatementScheduleOfInvestmentsTreasury" roleURI="http://dbfunds.db.com/role/StatementScheduleOfInvestmentsTreasury" />
  <roleRef xlink:type="simple" xlink:href="dbe-20111231.xsd#StatementScheduleOfInvestmentsTreasuryParenthetical" roleURI="http://dbfunds.db.com/role/StatementScheduleOfInvestmentsTreasuryParenthetical" />
  <roleRef xlink:type="simple" xlink:href="dbe-20111231.xsd#StatementScheduleOfInvestmentsFuturesContracts" roleURI="http://dbfunds.db.com/role/StatementScheduleOfInvestmentsFuturesContracts" />
  <roleRef xlink:type="simple" xlink:href="dbe-20111231.xsd#StatementScheduleOfInvestmentsFuturesContractsParenthetical" roleURI="http://dbfunds.db.com/role/StatementScheduleOfInvestmentsFuturesContractsParenthetical" />
  <roleRef xlink:type="simple" xlink:href="dbe-20111231.xsd#StatementStatementOfChangesInShareholdersEquity" roleURI="http://dbfunds.db.com/role/StatementStatementOfChangesInShareholdersEquity" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" />
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all" />
  <definitionLink xlink:role="http://dbfunds.db.com/role/StatementScheduleOfInvestmentsTreasury" xlink:type="extended" xlink:title="00200 - Statement - Schedule Of Investments (Treasury)">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="us-gaap_ScheduleOfInvestmentsTable" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="us-gaap_InvestmentTypeAxis" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_ScheduleOfInvestmentsTable" xlink:to="us-gaap_InvestmentTypeAxis" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="us-gaap_InvestmentTypeCategorizationMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeCategorizationMember" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="us-gaap_InvestmentTypeCategorizationMember_634666482047404835" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" order="1" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeCategorizationMember_634666482047404835" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryFiveTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryFiveTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryFiveTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueJanuaryNineteenTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueJanuaryNineteenTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueJanuaryNineteenTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryTwentySixTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryTwentySixTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryTwentySixTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruaryTwoTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruaryTwoTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruaryTwoTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruarySixteenTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruarySixteenTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruarySixteenTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueFebruaryTwentyThreeTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueFebruaryTwentyThreeTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueFebruaryTwentyThreeTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroThreePercentDueMarchFirstTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroThreePercentDueMarchFirstTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroThreePercentDueMarchFirstTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchEightTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchEightTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchEightTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOnePercentDueMarchFifteenTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueMarchFifteenTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueMarchFifteenTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchTwentyTwoTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchTwentyTwoTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchTwentyTwoTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueMarchTwentyNineTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueMarchTwentyNineTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueMarchTwentyNineTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointZeroEightPercentDueJanuarySixTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointZeroEightPercentDueJanuarySixTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointZeroEightPercentDueJanuarySixTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointZeroSevenPercentDueJanuaryTwentyTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointZeroSevenPercentDueJanuaryTwentyTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointZeroSevenPercentDueJanuaryTwentyTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointZeroSixFivePercentDueJanuaryTwentySevenTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointZeroSixFivePercentDueJanuaryTwentySevenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointZeroSixFivePercentDueJanuaryTwentySevenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryThreeTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryThreeTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryThreeTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryTenTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryTenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryTenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneThreePercentDueFebruarySeventeenTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneThreePercentDueFebruarySeventeenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneThreePercentDueFebruarySeventeenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneSevenFivePercentDueMarchThreeTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneSevenFivePercentDueMarchThreeTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneSevenFivePercentDueMarchThreeTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneFourFivePercentDueMarchTenTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneFourFivePercentDueMarchTenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneFourFivePercentDueMarchTenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneThreePercentDueMarchTwentyFourTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneThreePercentDueMarchTwentyFourTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneThreePercentDueMarchTwentyFourTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneEightPercentDueMarchThirtyOneTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneEightPercentDueMarchThirtyOneTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneEightPercentDueMarchThirtyOneTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_TotalUnitedStatesTreasuryObligationsMember" xlink:label="dbe_TotalUnitedStatesTreasuryObligationsMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_TotalUnitedStatesTreasuryObligationsMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_ScheduleOfInvestmentsTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentOwnedPercentOfNetAssets" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_InvestmentOwnedPercentOfNetAssets" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentOwnedAtFairValue" xlink:label="us-gaap_InvestmentOwnedAtFairValue" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_InvestmentOwnedAtFairValue" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" xlink:label="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue" priority="1" use="optional" />
  </definitionLink>
  <definitionLink xlink:role="http://dbfunds.db.com/role/StatementScheduleOfInvestmentsTreasuryParenthetical" xlink:type="extended" xlink:title="00205 - Statement - Schedule Of Investments (Treasury) (Parenthetical)">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="us-gaap_ScheduleOfInvestmentsTable" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="us-gaap_InvestmentTypeAxis" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_ScheduleOfInvestmentsTable" xlink:to="us-gaap_InvestmentTypeAxis" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="us-gaap_InvestmentTypeCategorizationMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeCategorizationMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryFiveTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryFiveTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryFiveTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueJanuaryNineteenTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueJanuaryNineteenTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueJanuaryNineteenTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryTwentySixTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryTwentySixTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueJanuaryTwentySixTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruaryTwoTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruaryTwoTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruaryTwoTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruarySixteenTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruarySixteenTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueFebruarySixteenTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueFebruaryTwentyThreeTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueFebruaryTwentyThreeTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOneFivePercentDueFebruaryTwentyThreeTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroThreePercentDueMarchFirstTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroThreePercentDueMarchFirstTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroThreePercentDueMarchFirstTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchEightTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchEightTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchEightTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroOnePercentDueMarchFifteenTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueMarchFifteenTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroOnePercentDueMarchFifteenTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchTwentyTwoTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchTwentyTwoTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroZeroFivePercentDueMarchTwentyTwoTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueMarchTwentyNineTwoThousandTwelveMember" xlink:label="dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueMarchTwentyNineTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_UsTreasuryBillsZeroPointZeroTwoFivePercentDueMarchTwentyNineTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointZeroEightPercentDueJanuarySixTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointZeroEightPercentDueJanuarySixTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointZeroEightPercentDueJanuarySixTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointZeroSevenPercentDueJanuaryTwentyTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointZeroSevenPercentDueJanuaryTwentyTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointZeroSevenPercentDueJanuaryTwentyTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointZeroSixFivePercentDueJanuaryTwentySevenTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointZeroSixFivePercentDueJanuaryTwentySevenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointZeroSixFivePercentDueJanuaryTwentySevenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryThreeTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryThreeTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryThreeTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryTenTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryTenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneTwoFivePercentDueFebruaryTenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneThreePercentDueFebruarySeventeenTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneThreePercentDueFebruarySeventeenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneThreePercentDueFebruarySeventeenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneSevenFivePercentDueMarchThreeTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneSevenFivePercentDueMarchThreeTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneSevenFivePercentDueMarchThreeTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneFourFivePercentDueMarchTenTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneFourFivePercentDueMarchTenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneFourFivePercentDueMarchTenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneThreePercentDueMarchTwentyFourTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneThreePercentDueMarchTwentyFourTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneThreePercentDueMarchTwentyFourTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_USTreasuryBillsZeroPointOneEightPercentDueMarchThirtyOneTwoThousandElevenMember" xlink:label="dbe_USTreasuryBillsZeroPointOneEightPercentDueMarchThirtyOneTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_USTreasuryBillsZeroPointOneEightPercentDueMarchThirtyOneTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_TotalUnitedStatesTreasuryObligationsMember" xlink:label="dbe_TotalUnitedStatesTreasuryObligationsMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_TotalUnitedStatesTreasuryObligationsMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_ScheduleOfInvestmentsTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" />
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2011/invest-2011-01-31.xsd#invest_InvestmentInterestRate" xlink:label="invest_InvestmentInterestRate" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="invest_InvestmentInterestRate" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2011/invest-2011-01-31.xsd#invest_InvestmentMaturityDate1" xlink:label="invest_InvestmentMaturityDate1" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="invest_InvestmentMaturityDate1" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_TreasuryCost" xlink:label="dbe_TreasuryCost" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="dbe_TreasuryCost" priority="1" use="optional" />
  </definitionLink>
  <definitionLink xlink:role="http://dbfunds.db.com/role/StatementScheduleOfInvestmentsFuturesContracts" xlink:type="extended" xlink:title="00300 - Statement - Schedule Of Investments (Futures Contracts)">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="us-gaap_ScheduleOfInvestmentsTable" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="us-gaap_InvestmentTypeAxis" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_ScheduleOfInvestmentsTable" xlink:to="us-gaap_InvestmentTypeAxis" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="us-gaap_InvestmentTypeCategorizationMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeCategorizationMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_BrentCrudeThreeHundredAndTwentyContractsSettlementDateFebruaryFourteenTwoThousandTwelveMember" xlink:label="dbe_BrentCrudeThreeHundredAndTwentyContractsSettlementDateFebruaryFourteenTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_BrentCrudeThreeHundredAndTwentyContractsSettlementDateFebruaryFourteenTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_HeatingOilTwoHundredAndEightyThreeContractsSettlementDateMayThirtyOneTwoThousandTwelveMember" xlink:label="dbe_HeatingOilTwoHundredAndEightyThreeContractsSettlementDateMayThirtyOneTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_HeatingOilTwoHundredAndEightyThreeContractsSettlementDateMayThirtyOneTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_NaturalGasThreeHundredAndNinetySevenContractsSettlementDateSeptemberTwentySixTwoThousandTwelveMember" xlink:label="dbe_NaturalGasThreeHundredAndNinetySevenContractsSettlementDateSeptemberTwentySixTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_NaturalGasThreeHundredAndNinetySevenContractsSettlementDateSeptemberTwentySixTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_RbobGasolineThreeHundredAndTwentyEightContractsSettlementDateNovemberThirtyTwoThousandTwelveMember" xlink:label="dbe_RbobGasolineThreeHundredAndTwentyEightContractsSettlementDateNovemberThirtyTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_RbobGasolineThreeHundredAndTwentyEightContractsSettlementDateNovemberThirtyTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_WtiCrudeThreeHundredAndSeventyFourContractsSettlementDateJuneTwentyTwoThousandTwelveMember" xlink:label="dbe_WtiCrudeThreeHundredAndSeventyFourContractsSettlementDateJuneTwentyTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_WtiCrudeThreeHundredAndSeventyFourContractsSettlementDateJuneTwentyTwoThousandTwelveMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_LightSweetCrudeOilThreeHundredAndNinetyOneContractsSettlementDateJuneTwentyOneTwoThousandElevenMember" xlink:label="dbe_LightSweetCrudeOilThreeHundredAndNinetyOneContractsSettlementDateJuneTwentyOneTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_LightSweetCrudeOilThreeHundredAndNinetyOneContractsSettlementDateJuneTwentyOneTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_BrentCrudeOilThreeHundredAndNinetySixContractsSettlementDateJanuaryFourteenTwoThousandElevenMember" xlink:label="dbe_BrentCrudeOilThreeHundredAndNinetySixContractsSettlementDateJanuaryFourteenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_BrentCrudeOilThreeHundredAndNinetySixContractsSettlementDateJanuaryFourteenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_HeatingOilThreeHundredAndFortyFiveContractsSettlementDateMayThirtyOneTwoThousandElevenMember" xlink:label="dbe_HeatingOilThreeHundredAndFortyFiveContractsSettlementDateMayThirtyOneTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_HeatingOilThreeHundredAndFortyFiveContractsSettlementDateMayThirtyOneTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_NaturalGasThreeHundredAndFortyEightContractsSettlementDateSeptemberTwentyEightTwoThousandElevenMember" xlink:label="dbe_NaturalGasThreeHundredAndFortyEightContractsSettlementDateSeptemberTwentyEightTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_NaturalGasThreeHundredAndFortyEightContractsSettlementDateSeptemberTwentyEightTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_RbobGasolineThrRBOBGasolineThreeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMemberEeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMember" xlink:label="dbe_RbobGasolineThrRBOBGasolineThreeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMemberEeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_RbobGasolineThrRBOBGasolineThreeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMemberEeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_NetUnrealizedDepreciationAppreciationOnFuturesContractsMember" xlink:label="dbe_NetUnrealizedDepreciationAppreciationOnFuturesContractsMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_NetUnrealizedDepreciationAppreciationOnFuturesContractsMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_ScheduleOfInvestmentsTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentOwnedPercentOfNetAssets" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_InvestmentOwnedPercentOfNetAssets" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentOwnedAtFairValue" xlink:label="us-gaap_InvestmentOwnedAtFairValue" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_InvestmentOwnedAtFairValue" priority="1" use="optional" />
  </definitionLink>
  <definitionLink xlink:role="http://dbfunds.db.com/role/StatementScheduleOfInvestmentsFuturesContractsParenthetical" xlink:type="extended" xlink:title="00305 - Statement - Schedule Of Investments (Futures Contracts) (Parenthetical)">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="us-gaap_ScheduleOfInvestmentsTable" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="us-gaap_InvestmentTypeAxis" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_ScheduleOfInvestmentsTable" xlink:to="us-gaap_InvestmentTypeAxis" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="us-gaap_InvestmentTypeCategorizationMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeCategorizationMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_BrentCrudeThreeHundredAndTwentyContractsSettlementDateFebruaryFourteenTwoThousandTwelveMember" xlink:label="dbe_BrentCrudeThreeHundredAndTwentyContractsSettlementDateFebruaryFourteenTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_BrentCrudeThreeHundredAndTwentyContractsSettlementDateFebruaryFourteenTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_HeatingOilTwoHundredAndEightyThreeContractsSettlementDateMayThirtyOneTwoThousandTwelveMember" xlink:label="dbe_HeatingOilTwoHundredAndEightyThreeContractsSettlementDateMayThirtyOneTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_HeatingOilTwoHundredAndEightyThreeContractsSettlementDateMayThirtyOneTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_NaturalGasThreeHundredAndNinetySevenContractsSettlementDateSeptemberTwentySixTwoThousandTwelveMember" xlink:label="dbe_NaturalGasThreeHundredAndNinetySevenContractsSettlementDateSeptemberTwentySixTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_NaturalGasThreeHundredAndNinetySevenContractsSettlementDateSeptemberTwentySixTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_RbobGasolineThreeHundredAndTwentyEightContractsSettlementDateNovemberThirtyTwoThousandTwelveMember" xlink:label="dbe_RbobGasolineThreeHundredAndTwentyEightContractsSettlementDateNovemberThirtyTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_RbobGasolineThreeHundredAndTwentyEightContractsSettlementDateNovemberThirtyTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_WtiCrudeThreeHundredAndSeventyFourContractsSettlementDateJuneTwentyTwoThousandTwelveMember" xlink:label="dbe_WtiCrudeThreeHundredAndSeventyFourContractsSettlementDateJuneTwentyTwoThousandTwelveMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_WtiCrudeThreeHundredAndSeventyFourContractsSettlementDateJuneTwentyTwoThousandTwelveMember" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_LightSweetCrudeOilThreeHundredAndNinetyOneContractsSettlementDateJuneTwentyOneTwoThousandElevenMember" xlink:label="dbe_LightSweetCrudeOilThreeHundredAndNinetyOneContractsSettlementDateJuneTwentyOneTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_LightSweetCrudeOilThreeHundredAndNinetyOneContractsSettlementDateJuneTwentyOneTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_BrentCrudeOilThreeHundredAndNinetySixContractsSettlementDateJanuaryFourteenTwoThousandElevenMember" xlink:label="dbe_BrentCrudeOilThreeHundredAndNinetySixContractsSettlementDateJanuaryFourteenTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_BrentCrudeOilThreeHundredAndNinetySixContractsSettlementDateJanuaryFourteenTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_HeatingOilThreeHundredAndFortyFiveContractsSettlementDateMayThirtyOneTwoThousandElevenMember" xlink:label="dbe_HeatingOilThreeHundredAndFortyFiveContractsSettlementDateMayThirtyOneTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_HeatingOilThreeHundredAndFortyFiveContractsSettlementDateMayThirtyOneTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_NaturalGasThreeHundredAndFortyEightContractsSettlementDateSeptemberTwentyEightTwoThousandElevenMember" xlink:label="dbe_NaturalGasThreeHundredAndFortyEightContractsSettlementDateSeptemberTwentyEightTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_NaturalGasThreeHundredAndFortyEightContractsSettlementDateSeptemberTwentyEightTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_RbobGasolineThrRBOBGasolineThreeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMemberEeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMember" xlink:label="dbe_RbobGasolineThrRBOBGasolineThreeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMemberEeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="dbe_RbobGasolineThrRBOBGasolineThreeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMemberEeHundredAndSeventyOneContractsSettlementDateNovemberThirtyTwoThousandElevenMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_ScheduleOfInvestmentsTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnrealizedGainOnSecurities" xlink:label="us-gaap_UnrealizedGainOnSecurities" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_UnrealizedGainOnSecurities" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnrealizedLossOnSecurities" xlink:label="us-gaap_UnrealizedLossOnSecurities" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_UnrealizedLossOnSecurities" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OpenOptionContractsWrittenNumberOfContracts" xlink:label="us-gaap_OpenOptionContractsWrittenNumberOfContracts" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_OpenOptionContractsWrittenNumberOfContracts" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ForwardContractIndexedToIssuersEquitySettlementDateOrDates" xlink:label="us-gaap_ForwardContractIndexedToIssuersEquitySettlementDateOrDates" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="us-gaap_ForwardContractIndexedToIssuersEquitySettlementDateOrDates" priority="1" use="optional" />
  </definitionLink>
  <definitionLink xlink:role="http://dbfunds.db.com/role/StatementStatementOfChangesInShareholdersEquity" xlink:type="extended" xlink:title="00500 - Statement - Statement Of Changes In Shareholders' Equity">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="us-gaap_StatementClassOfStockAxis" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementClassOfStockAxis" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="us-gaap_ClassOfStockDomain" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="us-gaap_ClassOfStockDomain_634666482047560834" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" order="1" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_634666482047560834" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_GeneralSharesMember" xlink:label="dbe_GeneralSharesMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="dbe_GeneralSharesMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_SharesMember" xlink:label="dbe_SharesMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="dbe_SharesMember" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="us-gaap_StatementEquityComponentsAxis" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="2" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementEquityComponentsAxis" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="us-gaap_EquityComponentDomain" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="us-gaap_EquityComponentDomain_634666482047560834" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" order="1" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain_634666482047560834" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="us-gaap_AdditionalPaidInCapitalMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_AdditionalPaidInCapitalMember" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="us-gaap_RetainedEarningsMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_RetainedEarningsMember" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityTotalMember" xlink:label="us-gaap_StockholdersEquityTotalMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_StockholdersEquityTotalMember" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="us-gaap_NoncontrollingInterestMember" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_NoncontrollingInterestMember" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_ValueBalance" xlink:label="dbe_ValueBalance" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_StatementLineItems" xlink:to="dbe_ValueBalance" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="us-gaap_SharesOutstanding" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_SharesOutstanding" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_SharesIssVal" xlink:label="dbe_SharesIssVal" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_StatementLineItems" xlink:to="dbe_SharesIssVal" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_SharesIssNum" xlink:label="dbe_SharesIssNum" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_StatementLineItems" xlink:to="dbe_SharesIssNum" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_SharesRedVal" xlink:label="dbe_SharesRedVal" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="us-gaap_StatementLineItems" xlink:to="dbe_SharesRedVal" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_SharesRedNum" xlink:label="dbe_SharesRedNum" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="us-gaap_StatementLineItems" xlink:to="dbe_SharesRedNum" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLossAttributableToReportingEntityAbstract" xlink:label="us-gaap_NetIncomeLossAttributableToReportingEntityAbstract" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetIncomeLossAttributableToReportingEntityAbstract" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentIncomeNet" xlink:label="us-gaap_InvestmentIncomeNet" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_NetIncomeLossAttributableToReportingEntityAbstract" xlink:to="us-gaap_InvestmentIncomeNet" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_NetRealGain" xlink:label="dbe_NetRealGain" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_NetIncomeLossAttributableToReportingEntityAbstract" xlink:to="dbe_NetRealGain" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="dbe-20111231.xsd#dbe_NetChangeUnreal" xlink:label="dbe_NetChangeUnreal" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_NetIncomeLossAttributableToReportingEntityAbstract" xlink:to="dbe_NetChangeUnreal" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProfitLoss" xlink:label="us-gaap_ProfitLoss" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_NetIncomeLossAttributableToReportingEntityAbstract" xlink:to="us-gaap_ProfitLoss" priority="1" use="optional" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_MinorityInterestDecreaseFromRedemptions" xlink:label="us-gaap_MinorityInterestDecreaseFromRedemptions" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_MinorityInterestDecreaseFromRedemptions" priority="1" use="optional" />
  </definitionLink>
</linkbase>
