BOK Financial Corporation operates as the financial holding company for BOKF, NA that provides various financial products and services in Oklahoma, Texas, New Mexico, Northwest Arkansas, Colorado, Arizona, and Kansas/Missouri. It operates through three segments: Commercial Banking, Consumer Banking, and Wealth Management. The Commercial Banking segment offers lending, treasury, cash management, and customer commodity risk management products for small businesses, middle market, and larger commercial customers, as well as operates TransFund electronic funds transfer network. The Consumer Banking segment engages in the provision of retail lending and deposit services to small business customers through retail branch network; and mortgage loan origination and servicing activities.