BOK Financial named Marc Maun regional banking executive for Arizona, Colorado, Kansas, Missouri, New Mexico and Oklahoma. Maun, who will also have responsibilities for treasury management, has been with the company for more than 35 years and previously served as market executive for the company’s Kansas City, MO, and Oklahoma City, OK, operations. Most recently, he served as the company’s chief credit officer.

As Maun takes on a new role, Norm Bagwell will continue to serve as chairman and CEO for Bank of Texas, one of BOK Financial’s banking divisions, leading commercial banking across the bank’s footprint as well as its growth efforts in Texas and Arkansas. Bagwell joined the company in 2008 after serving as the Dallas president of JPMorgan Chase and its predecessor, Bank One Dallas.

Jim Dietz will replace Maun as the company’s chief credit officer. Dietz has been with the company since 1987, most recently serving as executive director of credit risk.

“These changes will better align the leadership team with our priorities and future opportunities for growth,” Stacy Kymes, chief operating officer for BOK Financial, said. “The depth of talent within the leadership team made these changes possible, and I am so pleased to welcome them all to their new roles.”

Kymes will assume the role of president and CEO when Steve Bradshaw retires.