Sue Ann Hamm

After three years of bitter court proceedings, oil tycoon Harold Hamm in 2015 tried to finally end his 26-year marriage with Sue Ann (no prenup) by writing her a check in the amount of $974,790,317.77 from his Morgan Stanley account. She deposited it, but then changed her mind, decided she wanted more and filed an appeal seeking a bigger share of the $13.7 billion fortune tied to Hamm’s 75% ownership in publicly traded Continental Resources. In April 2015 the Oklahoma Supreme Court ended the saga, granting Harold’s motion to dismiss her appeal, reasoning from precedent that Sue Ann had agreed to the settlement by signing and depositing the check. Sue Ann subsequently funded a political action committee that succeeded in its effort to unseat the judge who presided over the divorce.