Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  PFERDEHIRT DOUG
2. Date of Event Requiring Statement (Month/Day/Year)
04/22/2010
3. Issuer Name and Ticker or Trading Symbol
SCHLUMBERGER LTD /NV/ [SLB]
(Last)
(First)
(Middle)
C/O SCHLUMBERGER, 14910 AIRLINE RD.
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VICE PRESIDENT
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

ROSHARON, TX 77583
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 65,651
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Incentive Stock Option (right to buy) 04/17/2003(1) 04/17/2012 Common Stock 7,176 $ 27.873 D  
Incentive Stock Option (right to buy) 01/19/2006(2) 01/19/2015 Common Stock 3,080 $ 32.455 D  
Incentive Stock Option (right to buy) 01/22/2010(3) 01/22/2019 Common Stock 2,643 $ 37.845 D  
Incentive Stock Option (right to buy) 01/18/2007(4) 01/18/2016 Common Stock 1,842 $ 54.235 D  
Incentive Stock Option (right to buy) 07/19/2007(5) 07/19/2016 Common Stock 1,574 $ 63.545 D  
Incentive Stock Option (right to buy) 01/21/2011(6) 01/21/2020 Common Stock 1,459 $ 68.505 D  
Incentive Stock Option (right to buy) 01/17/2009(7) 01/17/2018 Common Stock 2,354 $ 84.93 D  
NQ Stock Option (right to buy) w/ tandem Tax w/h right 04/17/2003(1) 04/17/2012 Common Stock 22,824 $ 27.873 D  
NQ Stock Option (right to buy) w/ tandem Tax w/h right 01/19/2006(2) 01/19/2015 Common Stock 6,920 $ 32.455 D  
NQ Stock Option (right to buy) w/ tandem Tax w/h right 01/22/2010(3) 01/22/2019 Common Stock 37,357 $ 37.845 D  
NQ Stock Option (right to buy) w/ tandem Tax w/h right 01/18/2007(4) 01/18/2016 Common Stock 58,158 $ 54.235 D  
NQ Stock Option (right to buy) w/ tandem Tax w/h right 07/19/2007(5) 07/19/2016 Common Stock 28,426 $ 63.545 D  
NQ Stock Option (right to buy) w/ tandem Tax w/h right 01/21/2011(6) 01/21/2020 Common Stock 38,541 $ 68.505 D  
NQ Stock Option (right to buy) w/ tandem Tax w/h right 01/17/2009(7) 01/17/2018 Common Stock 12,646 $ 84.93 D  
RSU (restricted stock unit) 02/04/2013(8) 02/04/2020 Common Stock 10,000 $ 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
PFERDEHIRT DOUG
C/O SCHLUMBERGER
14910 AIRLINE RD.
ROSHARON, TX 77583
      VICE PRESIDENT  

Signatures

By: /s/Saul Laureles Attorney-in-Fact For: Douglas Pferdehirt 04/29/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Exercisable in five equal annual installments beginning April 17, 2003.
(2) This option becomes exercisable in four equal annual installments beginning January 19, 2006.
(3) This option becomes exercisable in five equal annual installments beginning January 22, 2010.
(4) This option becomes exercisable in four equal annual installments beginning January 18, 2007.
(5) This option becomes exercisable in five equal annual installments beginning July 19, 2007.
(6) This option becomes exercisable in five equal annual installments beginning January 21, 2011.
(7) This option becomes exercisable in five equal annual installments beginning January 17, 2009.
(8) This restricted stock unit is subject to a 3-year cliff and will become exercisable on February 4, 2013.

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