1. A

Serial Number: 85443447
Owner: (REGISTRANT) Schlumberger Technology Corporation CORPORATION TEXAS Suite 100 5599 San Felipe Houston TEXAS 77056
Filed on: 10/10/2011

2. EUREKA

Serial Number: 85492692
Owner: (REGISTRANT) Schlumberger Technology Corporation CORPORATION TEXAS Suite 100 5599 San Felipe Houston TEXAS 77056
Filed on: 12/12/2011

3. O

Serial Number: 85444118
Owner: (REGISTRANT) Schlumberger Technology Corporation CORPORATION TEXAS Suite 100 5599 San Felipe Houston TEXAS 77056
Filed on: 10/11/2011

4. REDACOIL

Serial Number: 85336628
Owner: (REGISTRANT) Schlumberger Technology Corporation CORPORATION TEXAS Suite 100 5599 San Felipe Houston TEXAS 77056
Filed on: 06/02/2011

5. TERRATEK

Serial Number: 77427551
Owner: (REGISTRANT) Schlumberger Technology Corporation CORPORATION TEXAS Suite 100 5599 San Felipe Houston TEXAS 77056
Filed on: 03/20/2008

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