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
Standard Oil of Kentucky Standard Oil of Kentucky The Standard Oil Company of Kentucky was incorporated on October 8, 1886 under Kentucky laws. It was founded as a division of the Standard Oil Trust to handle the assets of the Chess, Carley & Company, which Standard had acquired to handle product marketing and distribution for the southeastern U.S. It maintained corporate offices in all of the states it serviced, and also owned an oil refinery in Louisville, Kentucky, with a 500,000 barrel/year capacity. In 1892, it acquired the properties of Consolidated Tank Line Company. When the monopoly was broken up as an illegal trust