Brookside State Bank
| Status: | Inactive as of 05/10/1993 |
| Merger - Without Assistance | |
| Successor Bank: | BOKF |
| Headquarters: | Brookside State Bank 3237 South Peoria Avenue Tulsa, OK 74101 |
| Established: | 02/15/1949 |
| FDIC Insurance: | 02/15/1949 |
| FDIC Cert: | #16765 |
| Charter Class: | Commercial bank, state charter and Fed nonmember, supervised by the FDIC |
| Total Assets: | $110,806,000 |
| Total Deposits: | $99,564,000 |
History
| 1949-02-15 | Institution established: Original name:Brookside State Bank | |
| 1988-09-15 | Acquired Town and Country Bank (22466) in BIXBY, OK | |
| 1993-05-10 | Merged into and subsequently operated as part of Bank of Oklahoma, National Association (4214) in TULSA, OK | |
| 1993-05-10 | Acquired Sand Springs State Bank (12287) in SAND SPRINGS, OK | |
| 1994-05-02 | Acquired Plaza National Bank of Bartlesville (18901) in BARTLESVILLE, OK | |
| 1994-10-07 | Acquired Northwest Bank of Enid (21734) in ENID, OK | |
| 1994-11-14 | Acquired Citizens Bank (4153) in MUSKOGEE, OK | |
| 1997-04-01 | Acquired BancOklahoma Trust Company (26669) in TULSA, OK | |
| 1999-10-15 | Acquired The First National Bank and Trust Company of Muskogee (4152) in MUSKOGEE, OK | |
| 2011-01-01 | Acquired Colorado State Bank and Trust, N. A. (1769) in DENVER, CO | |
| 2011-01-01 | Changed name to BOKF, National Association (4214) | |
| 2011-01-01 | Acquired Bank of Kansas City, National Association (12690) in OVERLAND PARK, KS | |
| 2011-01-01 | Acquired Bank of Arkansas, National Asssociation (33482) in FAYETTEVILLE, AR | |
| 2011-01-01 | Acquired Bank of Albuquerque, National Association (34992) in ALBUQUERQUE, NM | |
| 2011-01-01 | Acquired Bank of Arizona, National Association (34002) in PHOENIX, AZ | |
| 2011-01-01 | Acquired Bank of Texas. National Association (21674) in DALLAS, TX | |
| 2012-01-01 | Acquired Southwest Trust Company, National Association (33884) in OKLAHOMA CITY, OK | |
| 2014-03-01 | Acquired GTrust (33769) in TOPEKA, KS | |
| 2017-02-17 | Acquired Missouri Bank and Trust Company of Kansas City (9387) in KANSAS CITY, MO | |
| 2019-03-25 | Acquired CoBiz Bank (22683) in DENVER, CO |