New York, (BBN)-The tycoon saw half his wealth vanish in just six months, as falling oil prices crushed the value of his company, Continental Resources, Inc (CLR), bringing his net worth down from $18.5 billion in June of last year to $9.3 billion in early January, according to Wealth-X, a wealth tracking company.
Hamm has also been going through a very public divorce from his ex-wife, Sue Ann Arnall, which made headlines after a judge ordered him to cough up nearly $1 billion, reports CNN.
Last month, Hamm appealed the ruling, claiming he couldn't afford to pay.
Arnall also appealed, claiming that she should be entitled to more.
BBN/AKG/AD-18Jan15-10:15am (BST)