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<!-- Generated by Fujitsu Interstage XWand B0160 -->
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        <link:definition>0010 - Statement - CONDENSED BALANCE SHEETS</link:definition>
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        <link:definition>0015 - Statement - CONDENSED BALANCE SHEETS (Parenthetical)</link:definition>
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      <link:roleType roleURI="http://www.cubicenergyinc.com/role/StatementOfIncome" id="StatementOfIncome">
        <link:definition>0020 - Statement - CONDENSED STATEMENTS OF OPERATIONS</link:definition>
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      <link:roleType roleURI="http://www.cubicenergyinc.com/role/CashFlows" id="CashFlows">
        <link:definition>0030 - Statement - CONDENSED STATEMENTS OF CASH FLOWS</link:definition>
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      <link:roleType roleURI="http://www.cubicenergyinc.com/role/DisclosureSummaryOfSignificantAccountPolicies" id="DisclosureSummaryOfSignificantAccountPolicies">
        <link:definition>1020 - Disclosure - Summary of Significant Account Policies:</link:definition>
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        <link:definition>1050 - Disclosure - Notes Payable</link:definition>
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      <link:roleType roleURI="http://www.cubicenergyinc.com/role/DisclosureRelatedPartyTransactions" id="DisclosureRelatedPartyTransactions">
        <link:definition>1060 - Disclosure - Related party transactions:</link:definition>
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      <link:roleType roleURI="http://www.cubicenergyinc.com/role/DisclosureSubsequentEvents" id="DisclosureSubsequentEvents">
        <link:definition>1070 - Disclosure - Subsequent Events</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>9999 - Document - Document and Entity Information</link:definition>
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