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- 10-K Annual report
- 21 Subsidiaries
- 23 Consent of Independent Registered Public Accounting Firm
- 24 Powers of Attorney
- 31.1 Certification of Chief Executive Officer Pursuant to Rule 13A-14(A)
- 31.2 Certification of Chief Financial Officer Pursuant to Rule 13A-14(A)
- 32.1 Certification of Chief Executive Officer Pursuant to 18 U.s.c. Section 1350
- 32.2 Certification of Chief Financial Officer Pursuant to 18 U.s.c. Section 1350
- 95 Mine Safety Disclosure
Exhibit 21
Significant Subsidiaries
Listed below are the significant subsidiaries of the Registrant as of December 31, 2011, and the states or jurisdictions in which they are incorporated or organized. The indentation reflects the principal parenting of each subsidiary. The names of other subsidiaries have been omitted from the list below, since they would not constitute, in the aggregate, a significant subsidiary as of December 31, 2011.
Schlumberger Antilles N.V., Curacao
Schlumberger B.V., Netherlands
Schlumberger Canada Limited, Canada
Schlumberger SA, France
Services Petroliers Schlumberger, France
Schlumberger Norge AS, Norway
Schlumberger Holdings Corporation, Delaware
Schlumberger Technology Corporation, Texas
WesternGeco LLC, Delaware
Smith International Inc, Delaware
Schlumberger UK Limited, UK
M-I Holdings (UK) Limited, UK
Schlumberger Plc, UK
Schlumberger Oilfield UK Plc, UK
WesternGeco Limited, UK
M-I Holdings BV, Netherlands
Schlumberger Oilfield Holdings Limited, BVI
Schlumberger Holdings Limited, BVI
Dowell Schlumberger Corporation, BVI
Schlumberger Logelco, Inc., Panama
Schlumberger Middle East SA., Panama
Schlumberger Offshore Services Limited, BVI
Schlumberger Overseas, SA, Panama
Schlumberger Seaco, Inc., Panama
Schlumberger Surenco, SA, Panama
WesternGeco Seismic Holdings Limited, BVI