Sayre James G.
Schlumberger WCP LTD
Schondell Douglas G.
Schwing Hydraulik Elektronik GmbH
Sears Howard V.
Seaton Paul
Sellami Hédi
Shear Stephen C
Shear Steve
Shenhar Joram
Shumway Jim
Slim Dril International Inc.
Slimdril International Inc.
Smet Marc J. M.
Smith Graham M.
Southard Drilling Technologies, L.P.
Stelly, II Otis V.
Suliga William
Svendsen Robert