0000875357-09-000011 DEF 14A 1 20081231 20090319 20090319 20090319 BOK FINANCIAL CORP ET AL 0000875357 6021 731373454 OK 1231 DEF 14A 34 000-19341 09692623 BANK OF OKLAHOMA TOWER PO BOX 2300 TULSA OK 74192 9185953025 BANK OF OKLAHOMA TOWER P O BOX 2300 TULSA OK 74192 DEF 14A 1 proxy.txt 2009 PROXY