Railhead Underground Products, L.L.C.
Rankin, III Robert E.
Reading & Bates Construction Co.
ReedHycalog UK Ltd
Reichman James M.
Richards Daniel J.
Rieder Paul
Rives Allen K.
Rousselet Patrick
Ruckman Don
Rudolf Hausherr & Sohne GmbH & Co. KG
Russell Oil Exploration Limited