In 2000, she became chair of the now $300 million-a-year Hensley & Co. following her father's death. It is one of the largest Anheuser-Busch beer distributors in the United States. Together, McCain, her children, and one of John McCain's children from his first marriage own 68 percent of the company. As chair, her role takes the form of consultations with the company CEO on major initiatives such as new products, new plants or employee welfare, rather than that of an active physical presence. She does not have operational control of Hensley, and Anheuser-Busch considers her to be an absentee owner. By 2007, she had an annual income of over $400,000 from Hensley and an estimated net worth of $100 million. She also owned at least $2.7 million worth of shares of Anheuser-Busch stock. With her children, she owns a minority stake in the Arizona Diamondbacks baseball team.