Standard Oil Standard Oil Standard Oil Co. Inc. was an American oil producing, transporting, refining, and marketing company. Established in 1870 by John D. Rockefeller and Henry Flagler as a corporation in Ohio, it was the largest oil refinery in the world of its time. Its history as one of the world's first and largest multinational corporations ended in 1911, when the United States Supreme Court, in a landmark case, ruled that Standard Oil was an illegal monopoly. Standard Oil dominated the oil products market initially through horizontal integration in the refining sector, then, in later years vertical integration; the company was
Associated Oil Company properties. The presidents of the companies were: W. G. Kerckhoff for Reed Crude Oil Company; Burton E. Green for Green-Whittier Oil Company; Charles A. Canfield for Canfield Oil Company; M. H. Whittier for Kern Oil Company; John A. Bunting for San Joaquin Oil & Development Company. Securing agreements from 34 other oil companies in the area the Associated Oil Company was incorporated on October 7, 1901 and on January 1, 1902 began actively producing and marketing crude oil. The Standard Oil Company and the Southern Pacific Railroad acquired an interest in Associated Oil for the purposes of transporting their own