SLB LIMITED/NV — Director's Dealing 2012

May 1, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SCHLUMBERGER LTD /NV/ (SLB)
CIK: 0000087347
Period of Report: 2012-04-30

Reporting Person: MARKS MICHAEL E (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-04-30	Common Stock, $0.01 par value per share	A	2250	—	Acquired	24750	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $0.01 par value per share	10000	Indirect

Footnotes

F1: Held by the Marks Family Trust UA DTD 07/07/2000, of which the reporting person is a co-trustee and a co-beneficiary.

F2: Pursuant to Schlumberger Limited Stock and Deferral Plan for Non-Employee Directors.

F3: Held by Epping LLC, which is controlled by the reporting person