Bank of Oklahoma, National Association, South
| Status: | Inactive as of 07/16/1992 |
| Merger - Without Assistance | |
| Successor Bank: | BOKF |
| Headquarters: | Bank of Oklahoma, National Association, South 7701 South Western Avenue Oklahoma City, OK 73139 |
| Established: | 09/09/1985 |
| FDIC Insurance: | 09/09/1985 |
| FDIC Cert: | #26354 |
| Charter Class: | Commercial bank, national (federal) charter and Fed member, supervised by the Office of the Comptroller of the Currency (OCC) |
| Total Assets: | $17,390,000 |
| Total Deposits: | $14,645,000 |
History
| 1985-09-09 | Institution established: Original name:First Southern Bank, National Association | |
| 1991-06-17 | Changed name to Bank of Oklahoma, National Association, South | |
| 1992-07-16 | 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 | |
| 1993-05-10 | Acquired Brookside State Bank (16765) in TULSA, 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 | Changed name to BOKF, National Association (4214) | |
| 2011-01-01 | Acquired Colorado State Bank and Trust, N. A. (1769) in DENVER, CO | |
| 2011-01-01 | Acquired Bank of Texas. National Association (21674) in DALLAS, TX | |
| 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 Kansas City, National Association (12690) in OVERLAND PARK, KS | |
| 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 |