BOK Financial is a regional financial services company, with an internally-estimated $92 billion in assets under management and administration. The company operates banking divisions across eight states as: Bank of Albuquerque; Bank of Oklahoma; Bank of Texas; and BOK Financial in Arizona, Arkansas, Colorado, Kansas, and Missouri; as well as having limited purpose offices in Nebraska, Milwaukee, and Connecticut.
Founded in 1910, BOK Financial is based in Tulsa, Oklahoma.