Prestolite Electric Incorporated

Professional Concepts Insurance Agency, Inc.

Progressive Food Solutions Llc

Project Management Associates, Inc. (withdrew 9/14/87)

Proquest Information And Learning Company

Proquest Information And Learning Company, Inc

Q.E.D. Environmental Systems, Inc

Redklay Solutions, Inc

Redklay Web Solutions, Inc

Reese Service Center Of California, Inc. (withdrew 4/2/91)

Residual Partners, Llc

Robertson Foundation, Inc

Sammons Securities Company, Llc

Sammons Securities Company, Llc

Schlumberger Ate

Schlumberger Cad/Cam

Schlumberger Graphics

Schlumberger Instruments

Schlumberger Service North America

Section 7, Llc