1) JR Ewing was one 2) Any Texan 3) Baron with gushers 4) Bush, once 5) Businessman 6) Crude operator 7) Crude tycoon 8) Dubya, before 9) Gushing guy 10) Man of affairs 11) Many a wealthy texan 12) One hoping for a strike 13) Petroleum exec 14) Refinery owner 15) Rich Texan, often 16) Rockefeller et al Found on https://www.crosswordclues.com/clue/oilman