X0203 3 2010-04-22 0 0000087347 SCHLUMBERGER LTD /NV/ SLB 0001250840 PFERDEHIRT DOUG C/O SCHLUMBERGER 14910 AIRLINE RD. ROSHARON TX 77583 0 1 0 0 VICE PRESIDENT Common Stock 65651 D Incentive Stock Option (right to buy) 27.873 2003-04-17 2012-04-17 Common Stock 7176 D Incentive Stock Option (right to buy) 32.455 2006-01-19 2015-01-19 Common Stock 3080 D Incentive Stock Option (right to buy) 37.845 2010-01-22 2019-01-22 Common Stock 2643 D Incentive Stock Option (right to buy) 54.235 2007-01-18 2016-01-18 Common Stock 1842 D Incentive Stock Option (right to buy) 63.545 2007-07-19 2016-07-19 Common Stock 1574 D Incentive Stock Option (right to buy) 68.505 2011-01-21 2020-01-21 Common Stock 1459 D Incentive Stock Option (right to buy) 84.93 2009-01-17 2018-01-17 Common Stock 2354 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 27.873 2003-04-17 2012-04-17 Common Stock 22824 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 32.455 2006-01-19 2015-01-19 Common Stock 6920 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 37.845 2010-01-22 2019-01-22 Common Stock 37357 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 54.235 2007-01-18 2016-01-18 Common Stock 58158 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 63.545 2007-07-19 2016-07-19 Common Stock 28426 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 68.505 2011-01-21 2020-01-21 Common Stock 38541 D NQ Stock Option (right to buy) w/ tandem Tax w/h right 84.93 2009-01-17 2018-01-17 Common Stock 12646 D RSU (restricted stock unit) 0 2013-02-04 2020-02-04 Common Stock 10000 D Exercisable in five equal annual installments beginning April 17, 2003. This option becomes exercisable in four equal annual installments beginning January 19, 2006. This option becomes exercisable in five equal annual installments beginning January 22, 2010. 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 January 21, 2011. This option becomes exercisable in five equal annual installments beginning January 17, 2009. This restricted stock unit is subject to a 3-year cliff and will become exercisable on February 4, 2013. By: /s/Saul Laureles Attorney-in-Fact For: Douglas Pferdehirt 2010-04-29