Hunt family
The Hunt family's fortune originates with oil wildcatter H.L. Hunt, who inspired the J.R. Ewing character on the long-running TV series "Dallas."
His eldest children, the late Margaret and H.L. Hunt III, sold his Hunt Petroleum to XTO Energy in 2008 for $4.2 billion in cash and stock.
Today, his heirs own fortunes ranging from energy, real estate and sports; sons Ray Lee and W. Herbert own Hunt Oil and Petro-Hunt, respectively.
H.L.'s daughter Caroline founded and later sold Rosewood Hotels & Resorts; his late son, sports magnate Lamar, is said to have named the Super Bowl.
Lamar's children still own the NFL's Kansas City Chiefs, a minority stake in the NBA's Chicago Bulls, and real estate assets in Kansas City and Texas.