brands Beginning in 1994, the company steadily expanded its footprint beyond Oklahoma, with moves into: Arkansas in 1994 through the acquisition of a bank holding company with operations in northwest Arkansas. Texas through the acquisition of Bank of Texas in 1997. New Mexico in 1998 with the acquisition of 17 branches that were renamed Bank of Albuquerque. Colorado in 2003 with the formation of Colorado State Bank. Arizona in 2005 with the formation of Bank of Arizona. Missouri in 2016 through the acquisition of MBT Bancshares, the parent company of Missouri Bank and Trust of Kansas City. In addition, in 2018, the company acquired Colorado-based CoBiz Financial and rebranded its Colorado and Arizona operations "BOK Financial." Shortly thereafter, the company the company rebranded its operations in Missouri, Kansas and Arkansas as BOK Financial. In 2005, the company acquired the naming rights for the BOK Center, for $11 million. Specialty lines of business In addition to its legacy energy financing expertise, BOK Financial specializes in healthcare-related finance, offering financial and banking services to owners and operators of senior housing and care facilities, hospitals, and health systems, as well as to physicians and specialized practices. BOK Financial works with tribal nations and governments to facilitate financial solutions for healthcare, education, and tribal infrastructure purposes. With more than 45 tribal relationships across the U.S., the company has helped raise more than $3 billion for tribal projects in recent years. BOK Financial currently manages more than $4 billion in assets for tribal governments and business. Partnering with heavy equipment distributors throughout the U.S., BOK Financial equipment finance provides financial services and lending capacity for borrowers within the construction and aggregate, crane and lift, power and transportation, and agriculture industries. References External links American companies established in 1990 Banks established in 1990 1990 establishments in Oklahoma Banks based in Oklahoma Companies based in Tulsa, Oklahoma Companies listed on the Nasdaq