R.C.R. Oilfield, Inc.
Radich Peter James
Raihert Ludvig A.
Ramsey Rickey H.
Raney Richard C.
Rastegar Gholam Hossein
Reed Mining Tools, Inc.
Reich Randy
Rein, Jr. Terry L.
Rein, Sr. Terry L.
Resendez Michael R.
Reullon Christophe
Reuter Gösta
Riel Bill
Roberts Paul
Robinson Stanley D.
Roddy John
Rotary Drilling Technology, LLC
Rountree Steven P.
Roussy Raymond J.