The Reign of Standard Oil By floobed Jan 1, 1863 Rockefeller focuses his business interests on oil Uknown exact date. Jan 1, 1865 Rockefeller takes full control and founds Rockefeller, Andrews and Flagler Uknown exact date. Jan 1, 1868 Rockefeller partners with a railroad for mutual benefits Unknown exact date. Jan 1, 1870 Rockefeller founds Standard Oil of Ohio Unknown exact date. Jan 1, 1872 The Cleveland Massacre Unkown exact date. Sep 18, 1873 Black Thursday Jan 1, 1882 Standard Oil trust is formed Unknown exact date. Jan 21, 1885 Standard Oil expands overseas Unkown exact date. Jan 1, 1888 Anti-monopoly ideas begin to rise Unknown exact date. Jan 1, 1890 Sherman Antitrust Act is passed Jan 1, 1895 Rockefeller retires from Standard Oil Nov 1, 1902 The History of the Standard Oil Company is released Jan 1, 1908 Congress files a lawsuit against Standard Oil May 15, 1911 Standard Oil is ordered to disassemble