0000875357-09-000040 8-K 2 20091202 2.03 9.01 20091204 20091204 BOK FINANCIAL CORP ET AL 0000875357 6021 731373454 OK 1231 8-K 34 000-19341 091223380 BANK OF OKLAHOMA TOWER PO BOX 2300 TULSA OK 74192 9185953025 BANK OF OKLAHOMA TOWER P O BOX 2300 TULSA OK 74192 8-K 1 form8k120209.txt FORM 8-K 12/02/09 EX-99 2 exhibit99.txt (A) AMENDED DEBENTURE 12/02/09