501 W-N Apache Corporation
Averbukh Alexandr Samoilovich
Badger Manufacturing Corporation
Bailey Stephen Joseph
Bailey Vance Allen
Barthe Henry P.
Bauer Spezialtiefbau GmbH
Berezhnoi Vitaly Alexandrovich
Bierscheid, Jr. Robert C.
BOA Drilling Equipment, Inc.
Brazell, II James W.
Brown Kenneth W.
Bryant, Jr. William Sebert
Busse Ralph
Chugunov Viktor Dmitrievich
Cobb William R.
Cornell Ron A.
Denham Roy R.
Fogelstrom Gosta
Foster, Jr. C. Mackay