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<!--  Round: c52e91a3-6f0f-4d5e-9dc4-1ec0bc03d0da -->
<!--  Creation date: 2010-04-27T21:23:43Z -->
<!--  Copyright (c) 2005-2010 EDGAR Online, Inc. All Rights Reserved. -->
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        <link:definition>101 - Document - Document and Entity Information</link:definition>
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        <link:definition>103 - Statement - CONSOLIDATED STATEMENT OF INCOME</link:definition>
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      <link:roleType roleURI="http://www.slb.com/taxonomy/role/StatementOfFinancialPositionClassified" id="IMetrix_StatementOfFinancialPositionClassified">
        <link:definition>104 - Statement - CONSOLIDATED BALANCE SHEET</link:definition>
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        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>105 - Statement - CONSOLIDATED BALANCE SHEET (Parenthetical)</link:definition>
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        <link:definition>106 - Statement - CONSOLIDATED STATEMENT OF CASH FLOWS</link:definition>
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        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>107 - Statement - CONSOLIDATED STATEMENT OF EQUITY</link:definition>
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        <link:definition>108 - Statement - CONSOLIDATED STATEMENT OF EQUITY (Parenthetical)</link:definition>
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        <link:definition>109 - Disclosure - Basis of Presentation</link:definition>
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        <link:definition>110 - Disclosure - Recently Announced Transactions</link:definition>
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      <link:roleType roleURI="http://www.slb.com/taxonomy/role/NotesToFinancialStatementsRestructuringAndRelatedActivitiesDisclosureTextBlock" id="IMetrix_NotesToFinancialStatementsRestructuringAndRelatedActivitiesDisclosureTextBlock">
        <link:definition>111 - Disclosure - Charges</link:definition>
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      <link:roleType roleURI="http://www.slb.com/taxonomy/role/NotesToFinancialStatementsEarningsPerShareTextBlock" id="IMetrix_NotesToFinancialStatementsEarningsPerShareTextBlock">
        <link:definition>112 - Disclosure - Earnings Per Share</link:definition>
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        <link:definition>113 - Disclosure - Acquisitions</link:definition>
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        <link:definition>114 - Disclosure - Inventory</link:definition>
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        <link:definition>115 - Disclosure - Fixed Assets</link:definition>
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        <link:definition>116 - Disclosure - Multiclient Seismic Data</link:definition>
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      <link:roleType roleURI="http://www.slb.com/taxonomy/role/NotesToFinancialStatementsGoodwillDisclosureTextBlock" id="IMetrix_NotesToFinancialStatementsGoodwillDisclosureTextBlock">
        <link:definition>117 - Disclosure - Goodwill</link:definition>
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        <link:definition>118 - Disclosure - Intangible Assets</link:definition>
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        <link:definition>119 - Disclosure - Derivative Instruments and Hedging Activities</link:definition>
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        <link:definition>120 - Disclosure - Long-term Debt</link:definition>
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        <link:definition>121 - Disclosure - Income Tax</link:definition>
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        <link:definition>122 - Disclosure - Contingencies</link:definition>
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        <link:usedOn>link:presentationLink</link:usedOn>
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      <link:roleType roleURI="http://www.slb.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlock" id="IMetrix_NotesToFinancialStatementsSegmentReportingDisclosureTextBlock">
        <link:definition>123 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>124 - Disclosure - Pension and Other Postretirement Benefits</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      <link:roleType roleURI="http://www.slb.com/taxonomy/role/CommonDomainMembers" id="IMetrix_CommonDomainMembers">
        <link:definition>125 - Disclosure - Common Domain Members</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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