Marathon Oil Corporation was an American company engaged inhydrocarbon exploration. In November 2024, it was acquired byConocoPhillips and absorbed into the company.
Marathon was founded in 1887 inLima, Ohio, as theOhio Oil Company. In 1899, the company was acquired by theStandard Oil Company (New Jersey). After theantitrust case against Jersey Standard in 1911 and subsequent breakup of its holdings, Ohio Oil once again became an independent company. In 1930, Ohio Oil acquired the Transcontinental Oil Company, which operated the "Marathon" brand of retail fuel stations. Ohio Oil continued to use the Marathon brand, and in 1962, Ohio changed its name to the Marathon Oil Company.
In January 1982, Marathon was acquired byU.S. Steel. After the acquisition, the USX Corporation was created to act as the parent of U.S. Steel and Marathon Oil, which operated as divisions. In 2001, USX spun off Marathon under the name Marathon Oil Corporation. In 2011, Marathon Oil spun off itsdownstream operations asMarathon Petroleum.
Marathon Oil began as "The Ohio Oil Company" in 1887.[2] In 1889, the company was purchased byJohn D. Rockefeller'sStandard Oil. It remained a part of Standard Oil until Standard Oil was broken up in 1911. In 1930, The Ohio Oil Company bought the Transcontinental Oil Company, including the "Marathon" brand name. In 1962, the company changed its name to "Marathon Oil Company".[3]
Ohio Oil finished an 8-inch pipe line from theirMartinsville pump station toWood River on December 21, 1907, work on the refinery at Wood River was underway.[4]
In response to a 1914 Supreme Court decision declaring oil pipelines common carriers under theHepburn Act and subject to the supervision of theInterstate Commerce Commission, in January 1915 the pipeline assets of the company in Pennsylvania (valued at $250,000), Ohio ($6,377,700), Indiana ($5,357,100) and Illinois ($7,815,200) were spun off[a] into theIllinois Pipe Line Company (incorporated November 30, 1914 in Ohio).[5][6] The segregation was reversed in March 1930 when Ohio Oil bought back[b] Illinois Pipe Line Co.[7][8] The pipe line ran fromWood River, Illinois to the Pennsylvania-New Jersey border atCenterbridge where it connected to Standard Oil's pipeline system and theBayonne refinery. The line also reached theLima, Ohio plant of the Solar Refining Company.[9] Maps: 1931[10]
In 1959, the Ohio Oil Company acquired Detroit based Aurora Oil Company which operated Speedway 79 stations and became an Ohio Oil subsidiary.[11]
In 1962, the Speedway 79 and Marathon fuel stations were consolidated under the Marathon name and the Ohio Oil Company is renamed Marathon Oil Company.[12][13]
In 1981,Mobil made ahostile takeover offer to buy the company.[14][15] However, the board of Marathon Oil rejected the offer and instead sold the company toUnited States Steel. A legal battle ensued thereafter.[16]
In 1990, the headquarters was moved toHouston, Texas, but the company's refining subsidiary maintained its headquarters inFindlay, Ohio.[17]
In 1984, Marathon purchased the U.S. unit ofHusky Energy for $505 million.[18]
In 2001, USX, the holding company that ownedUnited States Steel and Marathon, spun off the steel business and, in 2002, USX renamed itself Marathon Oil Corporation.[20]
In 2003, Marathon sold its Canadian operations toHusky Energy.[21]
In July 2024, Marathon agreed to a $241.5 million settlement with theUS Department of Justice and theEnvironmental Protection Agency to resolve allegations of failing to obtain required permits at dozens of the company's oil and gas facilities on theFort Berthold Indian Reservation in North Dakota and releasing thousands of tons of illegal air pollution as a result.[37] The settlement included Marathon denying liability for the allegations but agreeing to pay a $64.5 million civil penalty, the largest fine ever imposed for violations of theClean Air Act from stationary sources, as well as agreeing to invest $177 million to bring its facilities into compliance.[37]
^Pursuant to a shareholder vote on Dec 21, 1914 Ohio Oil Co received in exchange for its pipe line assets the entire outstanding issue of 200,000 shares of Illinois Pipe Line Co. (par $100), which was then distributed as a stock dividend among holders of the 600,000 shares (par $25) of the Ohio Oil Co., who received1⁄3 share of Illinois Pipe Line Co. for each share of Ohio Oil Co. held
^Ohio Oil Co. offered the entire outstanding issue of 600,000 shares of its new 6% preferred (par $100) in exchange for the 200,000 (par $100) shares of Illinois Pipe Line Co.