Salter Martin de G.
Saveliev Vyacheslav N.
Schlumberger WCP Ltd.
Schmidt Bruno H.
Schwartz David H.
Scott Edward Docherty
SDS Pty Ltd.
Selko John J.
Sexton Timothy N.
Shaper, P.C. Sue Z.
Shears Dennis
Shull William
Sieniawski Dariusz
Sinclair Albert Richard
Skaar Jan
Skerl Damir S.
Skidmore, Jr. Sam C.
Smirnov Oleg V.
Sodder, Jr. George
Stenuick France