Pennzoil is an oil company established in 1913 in Los Angeles, USA. Actually, its history started a bit earlier, when in 1889 South Pen Oil Co., which was an affiliated company of John Rockefeller’s Standard Oil, started commercial oil production in Pennsylvania. Almost half a century later, in 1960, the firm was transformed into Penn’s Oil and in 1963 it received its name, “Pennzoil”. In the seventies, the headquarters of the newly named company moved from Pennsylvania to Huston, Texas. In 2002, the company was acquired by Royal Dutch Shell. Today Pennzoil is the producer of gasoline and lubrication oils.