TREVOR REES-JONES GARY ROLLINS

$3.7

BILLION  SELF-MADE SCORE: & SOURCE: OIL & GAS AGE: 68 RESIDENCE: DALLAS PHILANTHROPY SCORE: Hundreds of people attended the 60th birthday party ReesJones hosted for his wife, Jan, this summer; Garth Brooks was the musical guest. Despite a downturn in natural gas prices, his Chief Oil & Gas continues to frack in the Marcellus shale of Pennsylvania. $3.7

BILLION  SELF-MADE SCORE: # SOURCE: PEST CONTROL AGE: 75 RESIDENCE: ATLANTA PHILANTHROPY SCORE: The vice chairman and CEO of Atlanta pest-control conglomerate Rollins Inc., he runs the company alongside his brother and chairman Randall (No. 225).