O'brien James N.
O'brokta Ronald D.
O'connell Dennis James
O'donnell David B.
O'donnell David Brian
O'donnell Timothy M.
O'kelly Kent P.
O'neal George (jr.)
O'neill David Royd
O'rourke Harold T.
O. J. Pipelines Canada
O. J. Pipelines Canada An Alberta Limited Partnership
O.j. Pipelines Corp.
Oakley Thomas F.
Oakley Thomas Franklin
Oatey Company
Oberhoffer Helmut
Oberholzer David J.
Oberle Hugues
Oberly James E.