First Interstate Bank of Gillette
| Status: | Inactive as of 01/01/1989 |
| Merger - Without Assistance | |
| Successor Bank: | First Interstate Bank |
| Headquarters: | First Interstate Bank of Gillette 2201 South Douglas Highway Gillette, WY 82716 |
| Established: | 06/08/1981 |
| FDIC Insurance: | 06/08/1981 |
| FDIC Cert: | #23425 |
| Charter Class: | Commercial bank, state charter and Fed nonmember, supervised by the FDIC |
| Total Assets: | $95,831,000 |
| Total Deposits: | $89,906,000 |
History
| 1981-06-08 | Institution established: Original name:Security Bank of Gillette | |
| 1984-07-09 | Changed name to First Interstate Bank of Gillette | |
| 1987-09-18 | Acquired Stockmen's Bank and Trust Company (8720) in GILLETTE, WY | |
| 1989-01-01 | Changed name to First Interstate Bank of Commerce (524) | |
| 1989-01-01 | Acquired First Interstate Bank of Sugarland (21811) in SHERIDAN, WY | |
| 1989-01-01 | Acquired First Interstate Bank of Greybull, National Association (2219) in GREYBULL, WY | |
| 1989-01-01 | Merged into and subsequently operated as part of First Interstate Bank of Commerce (524) in SHERIDAN, WY | |
| 1989-01-01 | Acquired First Interstate Bank of Buffalo (22872) in BUFFALO, WY | |
| 1989-01-01 | Acquired First Interstate Bank of Gillette in GILLETTE, WY | |
| 1997-06-06 | Acquired First Interstate Bank of Wyoming, National Association (2209) in CASPER, WY | |
| 1997-06-06 | Changed name to First Interstate Bank (524) | |
| 2000-09-16 | Acquired The Equality State Bank (22547) in CHEYENNE, WY | |
| 2001-11-10 | Merged into and subsequently operated as part of First Interstate Bank (1105) in BILLINGS, MT | |
| 2003-01-27 | Acquired The United States National Bank of Red Lodge (2200) in RED LODGE, MT | |
| 2009-09-26 | Acquired The First Western Bank Sturgis (26773) in STURGIS, SD | |
| 2009-09-26 | Acquired First Western Bank (488) in WALL, SD | |
| 2014-10-18 | Acquired Mountain West Bank, National Association (33314) in HELENA, MT | |
| 2015-07-25 | Acquired United Bank (18772) in ABSAROKEE, MT | |
| 2016-08-13 | Acquired Flathead Bank of Bigfork, Montana (20382) in BIGFORK, MT | |
| 2017-08-12 | Acquired Bank of the Cascades (22407) in BEND, OR | |
| 2018-11-10 | Acquired Inland Northwest Bank (27601) in SPOKANE, WA | |
| 2019-04-08 | Acquired Community 1st Bank (58576) in POST FALLS, ID | |
| 2019-04-08 | Acquired Idaho Independent Bank (33845) in COEUR D ALENE, ID |