 NEW YORK, March 15, 2021 PRNewswire -- BOK Financial, NASDAQ: BOKF a more than 40 billion regional financial services company based in Tulsa, Oklahoma with 92 billion in assets under management and administration, announced that it has retained Rubenstein Public Relations as the firms agency of record. Rubenstein Public Relations established banking, economic and financial media expertise will help elevate the media profile of BOK Financials national and regional networks of business and personal banking products and wealth management divisions. 