The group owns a variety of companies, including the NBA's Utah Jazz. Net Worth: $48 B. Source of wealth: Oracle ... the richest people only had a nine-figure net worth, Forbes writes. Net Worth: $58.2 B. About James Carr Walton. Net worth: $1.6 billion Gail Miller is the head of the Larry H. Miller Group, which she started with her late husband, Larry. The richest of the rich in America is worth $2.8 billion, while the poorest of the rich checks in at a mere $150 million. 4. Warren Buffett. American businessman, CEO and the Chairman of his family's Arvest Bank, James Carr Walton, has a net worth of $53.3 billion in November 2019. Both the current major stakeholder, Jim, and Alice Walton, are worth more than $44 billion in 2020, and they ranked 16th and 17th that year, on the Forbes annual list of billionaires. Also, oil and gas driller Rodney Lewis had a net worth in March of $1.5 billion. Source of wealth: Berkshire Hathaway. James Carr Walton (born June 7, 1948) is an heir to the fortune of Walmart, the world's largest retailer. Software developer James Goodnight is the richest person in North Carolina, according to Forbes. Jim runs family's Arvest bank, which has branches in Arkansas, Kansas, Oklahoma, and Missouri. 5. Net Worth: $190.5 Billion The Waltons have been dominating this list for over ten years, and they are by some measure the most prosperous clan of the world. Ranked as the ten richest men in the world by the Forbes List, Jim 19, with a net worth of $41.2 billion (up from 2018). Larry Ellison. He is the youngest son of Sam Walton James Leininger, founder of Kinetic Concepts Inc. that is now owner by … Net worth: $14.4 billion Source of wealth: Ziff Davis Inc. William Ziff Jr. sold the magazine publisher his father created, Ziff Davis Inc. , which published PC Magazine, for $1.4 billion in 1994. As of March 2020, Walton was the 8th-richest person in the world, with a net worth of US$54.6 billion. The three richest families are worth $301 billion, one fourth of cumulative net worth of all the wealthiest families. Source of wealth: Microsoft. The Forbes 400 : Walton Tops List of Richest Americans - Los Angeles Times S. Robson Walton, Walmart, No 18, with a net worth of $44.3 billion (down from 2018); Steve Ballmer, Microsoft, No.