Geologist father and uncle ran small oil and gas firm until late 1970s. Headington played tennis at U. of Oklahoma. Started Headington Oil in 1977; produces more than 4.5 million barrels of oil and natural gas equivalent each year. Rapid exploration; redeploying cash into drilling program in South Texas. Sold Bakken shale assets in North Dakota to XTO Energy for $1.8 billion in cash and stock in May. Built stylish hotels Lumen and Joule in Dallas past three years. Bankrolled The Young Victoria, movie based on life of British queen; flick opens this winter. Also working on new movie, Edge of Darkness, starring Mel Gibson.