Quaker State is an American brand of motor oils, owned by Shell USA, the US-based division of Shell plc.
The former Quaker State Oil Refining Company had been constituted in 1924 after the Eastern Refining Co. acquired rights to the Quaker State brand name to the Phinny Brothers Oil Company, which had been producing the Quaker lubricants since 1912, gaining reputation in the U.S. after a deal signed with automotive manufacturer Franklin in 1914.
