Curtis L. Dinan is senior vice president, chief financial officer and treasurer of ONEOK, executive vice president, chief financial officer and treasurer of ONEOK Partners, and a director of ONEOK Partners. Dinan is a member of the American Institute of Certified Public Accountants, the Oklahoma Society of CPAs and is an advisory board member for the Breech School of Business at Drury University. He is also a past president, treasurer and director of Tulsa Court Appointed Special Advocates, a graduate and past treasurer and director of Leadership Tulsa, past treasurer and director of the Child Abuse Network and a graduate of Leadership Oklahoma. A Missouri native, Dinan earned accounting and business administration degrees in 1989 from Drury University in Springfield, Missouri.