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 Standard company only from 1908 until 1911. One of the original "Muckrakers" was Ida M. Tarbell, an American author and journalist. Her father was an oil producer whose business had failed due to Rockefeller's business dealings. After extensive interviews with a sympathetic senior executive of Standard Oil, Henry H. Rogers, Tarbell's investigations of Standard Oil fueled growing public attacks on Standard Oil and on monopolies in general. Her work was published in 19 parts in "McClure's" magazine from November 1902 to October 1904, then in 1904 as the book "The History of the Standard Oil Co". The Standard Oil Trust