X0303 4 2011-02-28 false 0000087347 SCHLUMBERGER LTD /NV/ SLB 0001250840 PFERDEHIRT DOUG 5599 SAN FELIPE, 17TH FLOOR HOUSTON TX 77056 false true false false Vice President Common Stock, $0.01 par value per share 2011-02-28 4 M false 7176 27.873 A 76322 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 22824 27.873 A 99146 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 1842 54.235 A 100988 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 58158 54.235 A 159146 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 1 63.545 A 159147 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 23999 63.545 A 183146 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 9000 84.93 A 192146 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 1 37.845 A 192147 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 15999 37.845 A 208146 D Common Stock, $0.01 par value per share 2011-02-28 4 M false 8000 68.505 A 216146 D Common Stock, $0.01 par value per share 2011-02-28 4 S false 137980 92.42 D 78166 D Incentive Stock Option (right to buy) 27.873 2011-02-28 4 M false 7176 0 D 2003-04-17 2012-04-17 Common Stock, $0.01 par value per share 7176 0 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 27.873 2011-02-28 4 M false 22824 0 D 2003-04-17 2012-04-17 Common Stock, $0.01 par value per share 22824 0 D Incentive Stock Option (right to buy) 54.235 2011-02-28 4 M false 1842 0 D 2007-01-18 2016-01-18 Common Stock, $0.01 par value per share 1842 0 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 54.235 2011-02-28 4 M false 58158 0 D 2007-01-18 2016-01-18 Common Stock, $0.01 par value per share 58158 0 D Incentive Stock Option (right to buy) 63.545 2011-02-28 4 M false 1 0 D 2007-07-19 2016-07-19 Common Stock, $0.01 par value per share 1574 1573 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 63.545 2011-02-28 4 M false 23999 0 D 2007-07-19 2016-07-19 Common Stock, $0.01 par value per share 28426 4427 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 84.93 2011-02-28 4 M false 9000 0 D 2009-01-17 2018-01-17 Common Stock, $0.01 par value per share 12646 3646 D Incentive Stock Option (right to buy) 37.845 2011-02-28 4 M false 1 0 D 2010-01-22 2019-01-22 Common Stock, $0.01 par value per share 2643 2642 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 37.845 2011-02-28 4 M false 15999 0 D 2010-01-22 2019-01-22 Common Stock, $0.01 par value per share 37357 21358 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 68.505 2011-02-28 4 M false 8000 0 D 2011-01-21 2020-01-21 Common Stock, $0.01 par value per share 38541 30541 D This option becomes exercisable in five equal annual installments beginning April 17, 2003. This option becomes exercisable in five equal annual installments beginning April 17, 2003. This option becomes exercisable in four equal annual installments beginning January 18, 2007. This option becomes exercisable in four equal annual installments beginning January 18, 2007. This option becomes exercisable in five equal annual installments beginning July 19, 2007. This option becomes exercisable in five equal annual installments beginning July 19, 2007. This option becomes exercisable in five equal annual installments beginning January 17, 2009. This option becomes exercisable in five equal annual installments beginning January 22, 2010. This option becomes exercisable in five equal annual installments beginning January 22, 2010. This option becomes exercisable in five equal annual installments beginning January 21, 2011. /s/Lynda Quagliara Attorney-in-Fact For: Douglas Pferdehirt 2011-02-28