1. DATAWATCH

Serial Number: 76562567
Owner: (REGISTRANT) Varco I/P, Inc. CORPORATION DELAWARE 10000 Richmond Avenue Houston TEXAS 77042
Filed on: 12/02/2003

2. E-DRILL

Serial Number: 76316719
Owner: (REGISTRANT) Varco I/P, Inc. CORPORATION DELAWARE 7909 Parkwood Circle Drive Houston TEXAS 77036
Filed on: 09/25/2001

3. E-TOTCO

Serial Number: 78946652
Owner: (REGISTRANT) Varco I/P, Inc. CORPORATION DELAWARE 10000 Richmond Avenue Houston TEXAS 77042
Filed on: 08/07/2006

4. E-WILDCAT

Serial Number: 77334542
Owner: (REGISTRANT) Varco I/P, Inc. CORPORATION DELAWARE 7909 Parkwood Circle Drive Houston TEXAS 77036
Filed on: 11/20/2007

5. GAS WATCH

Serial Number: 76562564
Owner: (REGISTRANT) Varco I/P, Inc. CORPORATION DELAWARE 7909 Parkwood Circle Drive Houston TEXAS 77036
Filed on: 12/02/2003

6. SERIES NS

Serial Number: 76528887
Owner: (REGISTRANT) Varco I/P, Inc. CORPORATION DELAWARE 10000 Richmond Avenue Houston TEXAS 77042
Filed on: 07/11/2003

7. TUBO-WRAP

Serial Number: 77109419
Owner: (REGISTRANT) Varco I/P, Inc. CORPORATION DELAWARE 7909 Parkwood Circle Drive Houston TEXAS 77036
Filed on: 02/16/2007

8. V-ICIS

Serial Number: 76494834
Owner: (REGISTRANT) Varco I/P, Inc. CORPORATION DELAWARE 7909 Parkwood Circle Drive Houston TEXAS 77036
Filed on: 03/04/2003

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