| Relationships | Role | Relationship Start | Relationship End |
| Plains Bancorp, Inc. | Parent | 1/22/1991 | 1/24/1991 |
| Seagraves Bancshares, Inc. | Parent | 12/31/1982 | 1/21/1991 |
| Seagraves Bancshares, Inc. | Parent | 12/31/1981 | 12/30/1982 |
| Seagraves Bancshares, Inc. | Parent | 7/1/1980 | 12/30/1981 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| First United Bank | Buyer | 1,173,662 | Discontinued | 1/25/1991 |