That was a key question that Oklahoma divorce judge Howard Haralson had to weigh in his decision last week, when he ordered Hamm, the chief executive officer of Continental Resources - and Oklahoma's richest person - to hand over more than $1 billion in cash and assets to his ex-wife in one of the largest-ever U.S. divorce judgments. Haralson awarded Sun Ann Hamm just 6 percent of the $18 billion fortune her lawyers say the couple had amassed at the start of the divorce trial in August.