Company Story
1910 - Bank of Oklahoma City is founded as a small community bank.
1975 - The bank is renamed Bank of Oklahoma, N.A. and begins to expand across Oklahoma.
1990 - Bank of Oklahoma acquires several banks in Oklahoma, increasing its assets to over $1 billion.
1993 - The bank holding company, BOK Financial Corporation, is formed.
1998 - BOK Financial Corporation acquires Bank of Arkansas, expanding into Arkansas.
2000 - The company acquires banks in Texas, Missouri, and New Mexico, expanding its presence in the Southwest.
2003 - BOK Financial Corporation acquires Union Bank of Arizona, expanding into Arizona.
2007 - The company acquires Bank of Albuquerque, expanding its presence in New Mexico.
2014 - BOK Financial Corporation acquires CoBiz Financial, expanding into Colorado and Arizona.