| Relationships | Role | Relationship Start | Relationship End |
| American National Bancorp, Inc. | Parent | 12/31/1991 | 12/27/1995 |
| American National Bancorp, Inc. | Parent | 10/28/1988 | 12/30/1991 |
| Sheridan Bancorp, Inc. | Parent | 3/23/1984 | 10/27/1988 |
| American National Bancorp, Inc. | Parent | 3/23/1984 | 10/27/1988 |
| American National Bancorp, Inc. | Parent | 12/27/1980 | 3/22/1984 |
| C & Z, Inc. | Subsidary | 6/28/1975 | 8/15/1981 |
| American Company, The | Subsidary | 12/31/1970 | 12/26/1980 |
| American Properties Company, The | Subsidary | 12/31/1970 | 12/30/1976 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Amquest Bank, National Association | Buyer | 332,253 | Acquisition | Discontinued | 4/25/1997 |
| The First National Bank And Trust Company Of El Reno | Seller | 47,182 | Failure | 8/8/1986 | |
| First State Bank | Seller | 20,725 | Failure | 1/10/1986 | |
| The Sheridan Bank And Trust Company | Seller | 25,044 | Discontinued | 3/23/1984 |