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Oilfield Services, Inc., founded on Aug. 15, 1972, in the southern part of Oklahoma City, Okla., initially
provided standard wellhead services to southern US oil and gas producers. Only five years later, in
1977, after the company was purchased by Kaneb Services, Oilfield Services, Inc. was renamed as
American Oilfield Products (the beginning of Cameron’s recognizable AOP™ brand today).