BOK Financial is a regional bank holding company headquartered in Tulsa, Oklahoma, with $52B in total assets. It operates primarily across eight states in the South-Central and Mountain West U.S. — including Oklahoma, Texas, Colorado, and Arizona — under division names like Bank of Oklahoma and Bank of Texas. The core business is commercial banking, focused on middle-market companies, with products including C&I loans, commercial real estate, energy and healthcare lending, and treasury and cash management services. BOK Financial also runs a consumer banking segment covering retail deposits, loans, and mortgage origination and servicing, plus a recently launched warehouse lending business targeting independent mortgage originators. The third segment, Wealth Management, includes trust and fiduciary services, private banking, investment advisory, and a fixed income trading business dealing primarily in agency MBS and municipal bonds for institutional clients. BOK Financial earns money through net interest income — driven by a predominantly floating-rate loan book and a loan-to-deposit ratio in the mid-60% range — and fee income, which represents roughly 38% of total revenue, a high proportion for a regional bank. Fee income comes from fiduciary and asset management fees on ~$127B in assets under management or administration, transaction card revenue, fixed income trading, and mortgage banking. BOK Financial's growth strategy centers on organic expansion through hiring revenue-generating bankers and building out Sun Belt markets, rather than M&A.