Bank Branches › Closed and merged banks › Oklahoma › First Southwest Bank
What happened to First Southwest Bank?
First Southwest Bank in Eldorado, OK (earlier called First State Bank) failed, and First State Bank and Trust Company of Hollis, OK took it over on Dec 16, 1988. After 1 more change of hands, what was First Southwest Bank is today part of Great Plains National Bank (Elk City, OK).
The chain, step by step
From the day it opened to the bank at the end of the chain today. Each step is one entry in the FDIC's record.
- 1902First State Bank opens in Eldorado, OK
- Mar 1, 1984renamed First Southwest Bank
- Dec 16, 1988FAILEDFirst Southwest Bank failed, and First State Bank and Trust Company of Hollis, OK took it over.FDIC certificate 15670 ends; its business continues under certificate 6003.
- Jul 17, 1996MERGEDFirst State Bank and Trust Company of Hollis, OK merged into Great Plains National Bank of Elk City, OK.FDIC certificate 6003 ends; its business continues under certificate 34207.
- TodayOPEN
Great Plains National BankMain office Elk City, OK · FDIC certificate 34207 · 24 offices in 2 states on June 30, 2026Every Great Plains National Bank office → Website on file with the FDIC: www.gpbankok.com.
If you still have something from First Southwest Bank
A lien that was never released
First Southwest Bank failed on Dec 16, 1988. For a failed bank placed in FDIC receivership, the FDIC may be able to issue the lien release, if the loan was paid off to the bank before it failed or to the FDIC afterward. The FDIC says that where a failed bank had an acquirer, its records in most cases went to that acquirer. Here the chain from the acquirer leads to Great Plains National Bank, which is worth asking too.
Requests go through the FDIC Information and Support Center with the recorded mortgage or title, and proof of payoff. The FDIC says to allow 30 business days once it has every document, and does not take requests by phone or email. Questions: FDIC Resolution Inquiries, 888-206-4662, 8am–4pm Central on weekdays.
An old account, passbook or CD
When a healthy bank assumes a failed bank's deposits, insured depositors become its customers right away (here, First State Bank and Trust Company). Start with Great Plains National Bank, and ask them to search under the name First Southwest Bank.
This failure is older than the current federal rule on unclaimed deposits (mid-1993), so different rules apply. Search FDIC unclaimed funds search, search the unclaimed-property program of the state of the owner's last known address on the bank's records, and ask FDIC Resolution Inquiries at 888-206-4662 what applies to this institution.
A safe deposit box
The FDIC says that when a healthy bank assumes a failed bank's deposits, the branches usually reopen the next business day with box access. Today, ask Great Plains National Bank. A box abandoned for years may have been turned over to the state's unclaimed-property program.
Box contents are not covered by FDIC insurance.
Not sure this is your bank?
Many banks shared a name. Match the city and the years above against your paperwork, or search again with the town.
Credit unions were never FDIC-insured and are not in this record; the NCUA credit union lookup covers those. Banks that closed before about 1970 are not in the FDIC's list either.
One caution: banks also sell single branches. If the office you used was sold to a different bank along the way, the account went with the branch, not with this chain.
This page is drawn from FDIC records and federal guidance. It is not legal advice, and BankBranches is not a bank or a government office. More detail: lien releases · old passbooks and CDs · safe deposit boxes · unclaimed money.
Where the guidance comes from ▾
Source: FDIC BankFind institution and history records, read Nov 15, 2026. The FDIC's list covers banks that ended in about 1970 or later. Look up certificate 15670 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.