Fortune up $500 million thanks to lucrative partnership with Ross Perot's Hillwood real estate operation. In August Quicksilver Resources snapped up assets of Barnett Shale natural gas field owned by Hillwood and his Chief Oil & Gas for $1.3 billion; Rees-Jones personally pocketed $400 million. Dartmouth grad studied law at Southern Methodist U. In 1984 left career as Dallas bankruptcy attorney to pursue oil and gas investments. Formed Chief Oil & Gas a decade later. Sold portion of Barnett Shale assets sale to Devon Energy and Crosstex Energy in 2006 for $2.6 billion in cash. With wife Jan, Rees-Jones Foundation awarded $5 million grant to Dallas homeless housing project CityWalk@Akard.