Sue Ann Hamm, the ex-wife of Oklahoma oil magnate Harold Hamm who was awarded cash and assets valued at more than $1 billion in the couple’s divorce, plans to appeal the judgment on the grounds that it grossly undervalues the marital wealth she is entitled to. Feeling shortchanged by a ruling that allows the Continental Resources chief executive to keep around 94 percent of the estimated $18 billion rise in his Continental shares during their 26-year marriage, Sue Ann Hamm will appeal within a few weeks, one of her lawyers told Reuters. On Monday, Oklahoma County Court Judge Howard Haralson ordered the CEO to pay his ex-wife $995 million. The ruling allows her to keep additional assets, including a California ranch and an Oklahoma home, worth tens of millions more.