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 - to ship his refined oil from Cleveland to New York City. In the winter months his only options were the three trunk lines - the Erie Railroad and the New York Central Railroad to New York City, and the Pennsylvania Railroad to Philadelphia. Competitors disliked the company's business practices, but consumers liked the lower prices. Standard Oil, being formed well before the discovery of the Spindletop oil field (in Texas, far from Standard Oil's base in the Mid-West) and a demand for oil other than for heat and light, was well placed to control the growth of the oil