It was Standard Oil
>Established in 1870 by John D. Rockefeller and Henry Flagler
>Founded: 1870, Cleveland, OH
>Ceased operations: 1911
>Headquarters: New York City, NY
>Successor: 34 successor entities
The successor companies from Standard Oil's breakup form the core of today's US oil industry. (Several of these companies were considered among the Seven Sisters who dominated the industry worldwide for much of the 20th century.) They include:
Standard Oil of New Jersey (SONJ) - or Esso (S.O.), or Jersey Standard – merged with Humble Oil to form Exxon, now part of ExxonMobil. Standard Trust companies Carter Oil, Imperial Oil (Canada), and Standard of Louisiana were kept as part of Standard Oil of New Jersey after the breakup.
Standard Oil of New York – or Socony, merged with Vacuum – renamed Mobil, now part of ExxonMobil.
Standard Oil of California – or Socal – renamed Chevron, became ChevronTexaco, but returned to Chevron.
Standard Oil of Indiana - or Stanolind, renamed Amoco (American Oil Co.) – now part of BP.
Standard's Atlantic and the independent company Richfield merged to form Atlantic Richfield Company or ARCO, subsequently became part of BP, and has since been sold to Tesoro. Atlantic operations were spun off and bought by Sunoco.
Standard Oil of Kentucky – or Kyso – was acquired by Standard Oil of California, currently Chevron.
The Standard Oil Company (Ohio) – or Sohio – the original Standard Oil corporate entity, acquired by BP in 1987.
The Ohio Oil Co. – or The Ohio – marketed gasoline under the Marathon name. The company is now known as Marathon Petroleum, and was often a rival with the in-state Standard spinoff, Sohio.
Other Standard Oil spin-offs:
Standard Oil of Iowa – pre-1911 – bought out by Chevron.
Standard Oil of Minnesota – pre-1911 – bought out by Amoco.
Standard Oil of Illinois - pre-1911 - bought out by Amoco.
Standard Oil of Kansas – refining only, eventually bought out by Amoco.
Standard Oil of Missouri – pre-1911 – dissolved.
Standard Oil of Louisiana – originally owned by Standard Oil of New Jersey (now by Exxon).
Standard Oil of Brazil – originally owned by Standard Oil of New Jersey (now by Exxon).
Other companies divested in the 1911 breakup:
Anglo-American Oil Co. – acquired by Jersey Standard in 1930, now Esso UK.
Buckeye Pipe Line Co.
Borne-Scrymser Co. (chemicals)
Chesebrough Manufacturing (acquired by Unilever)
Colonial Oil
Crescent Pipeline Co.
Cumberland Pipe Line Co. (acquired by Ashland[61])
Eureka Pipe Line Co.
Galena-Signal Oil Co.
Indiana Pipe Line Co.
National Transit Co.
New York Transit Co.
Northern Pipe Line Co.
Prairie Oil & Gas
Solar Refining
Southern Pipe Line Co.
South Penn Oil Co. – eventually became Pennzoil, now part of Shell.
Southwest Pennsylvania Pipe Line Co.
Swan and Finch
Union Tank Lines
Washington Oil Co.
Waters-Pierce
Of the 34 "Baby Standards", 11 were given rights to the Standard Oil name, based on the state they were in. Conoco and Atlantic elected to use their respective names instead of the Standard name, and their rights would be claimed by other companies.
By the 1980s, most companies were using their individual brand names instead of the Standard name, with Amoco being the last one to have widespread use of the "Standard" name, as it gave Midwestern owners the option of using the Amoco name or Standard.
Three supermajor companies now own the rights to the Standard name in the United States: ExxonMobil, Chevron Corp., and BP. BP acquired its rights through acquiring Standard Oil of Ohio and Amoco, and has a small handful of stations in the Midwestern United States using the Standard name. Likewise, BP continues to sell marine fuel under the Sohio brand at various marinas throughout Ohio. ExxonMobil keeps the Esso trademark alive at stations that sell diesel fuel by selling "Esso Diesel" displayed on the pumps. ExxonMobil has full international rights to the Standard name, and continues to use the Esso name overseas and in Canada. To protect its trademark Chevron has one station in each state it owns the rights to branded as Standard.[citation needed] Some of its Standard-branded stations have a mix of some signs that say Standard and some signs that say Chevron. Over time, Chevron has changed which station in a given state is the Standard station.
>https://en.wikipedia.org/wiki/Standard_Oil#Successor_companies