Stock Trading History of Corrigan Mark

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Corrigan Mark since year 2005. The trader's CIK number is 1358236. At the time of this reporting, Corrigan Mark is the Vice President of Schlumberger Ltd /nv/ (stock ticker symbol SLB).

Stock purchases, sales, and option exercises reported by *Corrigan Mark* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-01-28	SLB	Schlumberger Ltd /nv/	Option Exercise	55,979	29.36	1,643,599
2008-01-28	SLB	Schlumberger Ltd /nv/	Sale	45,864	79.01	3,623,539
2007-07-30	SLB	Schlumberger Ltd /nv/	Option Exercise	768	23.01	17,671
2006-07-27	SLB	Schlumberger Ltd /nv/	Option Exercise	6,312	30.67	193,618
2006-07-25	SLB	Schlumberger Ltd /nv/	Sale	31,997	64.73	2,071,165
2006-07-25	SLB	Schlumberger Ltd /nv/	Option Exercise	49,965	32.07	1,602,277

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Corrigan Mark (Vice President of Schlumberger Ltd /nv/ at the time of this reporting) see the Securities and Exchange Commission (SEC) website.