| # | Institution | Type | Metro | Assets | Efficiency ratio |
|---|---|---|---|---|---|
| 1 | Old Glory Bank Elmore City, OK | Bank | — | $276.8M | 210.24% |
| 2 | Growing Oaks Federal Credit Union Goldsby, OK | Credit Union | — | $3.9M | 209.09% |
| 3 | Peoples Bank and Trust Company Ryan, OK | Bank | — | $61.9M | 142.21% |
| 4 | First Oklahoma Federal Credit Union Glenpool, OK | Credit Union | — | $27.9M | 131.46% |
| 5 | The Hopeton State Bank Hopeton, OK | Bank | — | $30.8M | 122.82% |
| 6 | Bank of Vici Vici, OK | Bank | — | $28.9M | 118.49% |
| 7 | Otoe-Missouria Federal Credit Union Red Rock, OK | Credit Union | — | $3.5M | 113.68% |
| 8 | Encentus Federal Credit Union Tulsa, OK | Credit Union | — | $21.6M |
| 107.43% |
| 9 | Cherokee Strip Credit Union Ponca City, OK | Credit Union | — | $101.2M | 106.26% |
| 10 | Integris Federal Credit Union Oklahoma City, OK | Credit Union | — | $14.6M | 106.01% |
| 11 | Green Country Federal Credit Union Sand Springs, OK | Credit Union | — | $129.4M | 102.99% |
| 12 | Grant County Bank Medford, OK | Bank | — | $58.4M | 101.45% |
| 13 | Bank of Eufaula Eufaula, OK | Bank | — | $87.1M | 101.22% |
| 14 | SNB Bank, National Association Shattuck, OK | Bank | Woodward, OK | $129.4M | 98.01% |
| 15 | Teachers Credit Union Oklahoma City, OK | Credit Union | — | $6.4M | 97.32% |
| 16 | Employees Federal Credit Union Tulsa, OK | Credit Union | — | $48.1M | 96.82% |
| 17 | Cooperative Employees Credit Union Anadarko, OK | Credit Union | — | $10.0M | 94.52% |
| 18 | The Focus Federal Credit Union Oklahoma City, OK | Credit Union | — | $162.1M | 94.33% |
| 19 | Municipal Emps CU Of Oklahoma City Credit Union Oklahoma City, OK | Credit Union | — | $191.4M | 93.71% |
| 20 | Western Sun Federal Credit Union Broken Arrow, OK | Credit Union | — | $185.7M | 93.03% |
| 21 | Legacy Bank Hinton, OK | Bank | — | $686.5M | 92.26% |
| 22 | Washita State Bank Burns Flat, OK | Bank | — | $44.3M | 92.18% |
| 23 | SSB Bank Spiro, OK | Bank | — | $129.9M | 91.46% |
| 24 | Red Crown Federal Credit Union Tulsa, OK | Credit Union | — | $260.0M | 91.44% |
| 25 | Bank of Commerce Duncan, OK | Bank | Duncan, OK | $334.0M | 90.58% |
| 26 | MapleMark Bank Tulsa, OK | Bank | Tulsa, OK | $1.01B | 90.17% |
| 27 | First Enterprise Bank Oklahoma City, OK | Bank | Oklahoma City, OK | $189.7M | 88.91% |
| 28 | First Family Federal Credit Union Henryetta, OK | Credit Union | — | $151.0M | 88.53% |
| 29 | Oklahoma Central Credit Union Tulsa, OK | Credit Union | — | $760.7M | 88.45% |
| 30 | Local Bank Hulbert, OK | Bank | Tahlequah, OK | $463.1M | 88.38% |
| 31 | Ok Members First Federal Credit Union Tulsa, OK | Credit Union | — | $24.7M | 86.46% |
| 32 | Chickasaw Community Bank Oklahoma City, OK | Bank | Oklahoma City, OK | $557.1M | 85.43% |
| 33 | Department Of Public Safety Federal Credit Union Oklahoma City, OK | Credit Union | — | $26.0M | 84.84% |
| 34 | YNB Yukon, OK | Bank | Oklahoma City, OK | $261.4M | 84.45% |
| 35 | Arbuckle Federal Credit Union Ada, OK | Credit Union | — | $10.4M | 84.33% |
| 36 | COMMUNITY BANK OF OKLAHOMA Verden, OK | Bank | Oklahoma City, OK | $67.3M | 83.87% |
| 37 | Fire Fighters Credit Union Tulsa, OK | Credit Union | — | $47.0M | 83.57% |
| 38 | United Members Federal Credit Union Tulsa, OK | Credit Union | — | $10.5M | 83.31% |
| 39 | Bison Federal Credit Union Shawnee, OK | Credit Union | — | $43.3M | 83.13% |
| 40 | The City National Bank and Trust Company of Lawton, Oklahoma Lawton, OK | Bank | Lawton, OK | $446.2M | 82.09% |
| 41 | Community State Bank Hennessey, OK | Bank | — | $89.7M | 81.92% |
| 42 | Endurance Federal Credit Union Duncan, OK | Credit Union | — | $197.8M | 81.47% |
| 43 | Vast Bank, National Association Tulsa, OK | Bank | Tulsa, OK | $540.4M | 81.34% |
| 44 | First State Bank Noble, OK | Bank | Oklahoma City, OK | $61.5M | 80.95% |
| 45 | Peoples State Bank Blair, OK | Bank | Altus, OK | $13.9M | 80.67% |
| 46 | Farmers & Merchants Bank Duke, OK | Bank | Altus, OK | $20.5M | 80.34% |
| 47 | Correctional Workers Federal Credit Union El Reno, OK | Credit Union | — | $10.7M | 80.24% |
| 48 | The Bankers Bank Oklahoma City, OK | Bank | Oklahoma City, OK | $310.5M | 80.20% |
| 49 | First State Bank Tahlequah, OK | Bank | Tahlequah, OK | $82.1M | 80.15% |
| 50 | Frazer Bank Altus, OK | Bank | Altus, OK | $354.3M | 79.93% |