EXHIBIT (21) LUFKIN INDUSTRIES, INC. AND SUBSIDIARIES SUBSIDIARIES OF THE REGISTRANT Name under which Jurisdiction such subsidiary Name of subsidiary of Incorporation does business - ------------------------------- ---------------- ---------------- Lufkin Industries Canada, Ltd. Province of Alberta, Same Canada P. T. Lufkin Indonesia Republic of Indonesia Same Lufkin Industries FSC, Inc. Barbados Same Lufkin Industries Europe, Bv. The Netherlands Same Lufkin Japan, L. L. C. Japan Same Lufkin France France Same