The company was founded in 1927 when their father developed a way to convert heavy oil in gasoline.
After his death in 1967, Charles took over what was then called the Wood River Oil and Refining Company and renamed the firm. Koch joined the company in 1970 and became president in 1978.
His grandson William Hearst III chairs the Hearst media empire which is made up of more than 300 magazines around the world and the sports channel ESPN.
Altogether the family is worth $35 billion.9: The family behind the S. Johnson cleaning products giant own 100 percent of the multi-billion dollar corporation.
Charles and David each own 42 percent of the conglomerate.
Charles is worth $34 billion and David is worth the same.
Today the company he started includes Cox Communications and Auto Trader Group.
His grandson James (left) Kennedy was CEO from 1988 to 2008 and now serves as chairman Hotel magnate and 8th wealthiest family: Abram Nicholas Pritzker, entrepreneur and real estate dealer who built the Hyatt Hotel chain, is seen in this August 1983 photo.As a result the family responsible for RAIDand Ziploc bagas are worth billion.10: Dan Duncan struck oil in Texas in and left billion to his children when he died in 2010.That fortune shared between Randa Duncan Williams, Milane Frantz, Dannine Duncan Avara and Scott Duncan has now grown to billion.Sam, the youngest son of Sam Walton is worth .7 billion, Rob, who is the chairman of Wal-Mart is worth, .2 billion and their sister Alice is worth .9 billion.Their brother John died in an aircrash in 2005 and at the time of his death was worth .3 billion sales.Edward Kennedy (D-MA), and Kara Kennedy pictured in 2006.