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Profitability · Oklahoma

US Banks with Highest Net Interest Margin (NIM) in Oklahoma

Ranked among banks headquartered in Oklahoma. Re-ranked 1-100 within the state from the same national ranking population.

#1 Net Interest Margin (NIM): FIRST NATIONAL BANK — 6.31% . Net Interest Margin (NIM) measures the spread between interest earned on assets and interest paid on liabilities — the core unit economics of a commercial bank.

Ranked: 137 banks with reported data Showing: Top 100 Source: FFIEC call reports (Q1 2026) What is this metric? See the US Banks with … glossary entry Go deeper: What Is Net Interest Margin? A Bank Profitability Guide
# Bank HQ US Banks with … Total Assets
1 First National Bank Heavener , OK 6.31% $103.9M
2 Carson Community Bank Stilwell , OK 6.09% $166.8M
3 Bank of Commerce Chelsea , OK 5.96% $205.5M
4 Community Bank Bristow , OK 5.93% $114.5M
5 First National Bank and Trust Company of Broken Arrow, the Broken Arrow , OK 5.92% $270.5M
6 First State Bank Valliant , OK 5.83% $101.0M
7 Security First National Bank of Hugo Hugo , OK 5.75% $140.0M
8 First Security Bank, the Beaver , OK 5.68% $304.3M
9 American Exchange Bank Henryetta , OK 5.55% $104.9M
10 First National Bank and Trust Company of Miami, the Miami , OK 5.40% $206.4M
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11 Great Plains National Bank Elk City , OK 5.33% $1.90B
12 First Bank Erick , OK 5.24% $117.3M
13 Bank7 Oklahoma City , OK 5.21% $1.94B
14 Farmers State Bank, the Quinton , OK 5.18% $198.6M
15 Bank of Hydro Hydro , OK 5.16% $181.5M
16 Grand Savings Bank Grove , OK 5.11% $1.03B
17 All Capital Bank Locust Grove , OK 5.10% $178.5M
18 Firstbank Antlers , OK 5.07% $670.2M
19 Triad Bank, N.A. Tulsa , OK 5.04% $214.8M
20 Bank of Western Oklahoma Elk City , OK 5.02% $466.9M
21 Security State Bank of Oklahoma Wewoka , OK 4.97% $394.8M
22 Sooner State Bank Tuttle , OK 4.96% $339.3M
23 Welch State Bank of Welch, OKLA. Welch , OK 4.93% $442.4M
24 Firstar Bank Sallisaw , OK 4.88% $1.25B
25 Ameristate Bank Atoka , OK 4.87% $462.2M
26 First Texoma National Bank Durant , OK 4.84% $225.2M
27 Panhandle First Bank Guymon , OK 4.82% $573.2M
28 Mcclain Bank Purcell , OK 4.77% $293.5M
29 Cowboy Bank Kremlin , OK 4.77% $369.3M
30 Interbank Oklahoma City , OK 4.72% $5.48B
31 Bank of the West, the Thomas , OK 4.71% $184.5M
32 Oklahoma Capital Bank Tulsa , OK 4.65% $181.9M
33 First Pryority Bank Pryor , OK 4.65% $540.1M
34 First Bank of Owasso Owasso , OK 4.65% $646.9M
35 Valor Bank Edmond , OK 4.62% $305.6M
36 Security Bank and Trust Company Miami , OK 4.55% $155.3M
37 Snb Bank, N.A. Shattuck , OK 4.54% $129.1M
38 First Bank & Trust Company Duncan , OK 4.53% $952.2M
39 Method Bank Wyandotte , OK 4.51% $248.0M
40 First Enterprise Bank Oklahoma City , OK 4.51% $197.6M
41 FNB Coweta Coweta , OK 4.41% $124.8M
42 Blue Sky Bank Pawhuska , OK 4.41% $1.34B
43 Citizens Bank of Ada Ada , OK 4.36% $339.4M
44 Farmers Bank, the Carnegie , OK 4.34% $123.0M
45 Legacy Bank Hinton , OK 4.33% $694.0M
46 First National Bank of Oklahoma Oklahoma City , OK 4.33% $910.0M
47 Valliance Bank Oklahoma City , OK 4.33% $840.7M
48 Security State Bank Cheyenne , OK 4.30% $287.6M
49 Community State Bank, the Poteau , OK 4.28% $390.2M
50 Cleo State Bank Cleo Springs , OK 4.24% $114.7M
51 Acb Bank Cherokee , OK 4.22% $143.8M
52 Sovereign Bank Shawnee , OK 4.21% $1.40B
53 F&m Bank Edmond , OK 4.19% $925.2M
54 Quail Creek Bank Oklahoma City , OK 4.19% $826.5M
55 Payne County Bank, the Perkins , OK 4.18% $304.0M
56 First Bank & Trust Company Perry , OK 4.17% $260.6M
57 First State Bank, the Boise City , OK 4.16% $153.9M
58 Security Bank Tulsa , OK 4.15% $915.7M
59 Regent Bank Tulsa , OK 4.14% $2.07B
60 Watermark Bank Oklahoma City , OK 4.13% $429.6M
61 Grand Bank Tulsa , OK 4.12% $679.2M
62 Liberty National Bank Lawton , OK 4.10% $1.31B
63 Citizens Bank of Edmond, the Edmond , OK 4.10% $440.0M
64 Corebank Waynoka , OK 4.10% $128.9M
65 First National Bank & Trust Company of Mcalester Mcalester , OK 4.09% $575.6M
66 First National Bank and Trust Company of Ardmore Ardmore , OK 4.09% $708.4M
67 Fsnb, N.A. Lawton , OK 4.07% $471.2M
68 Exchange Bank and Trust Company Perry , OK 4.07% $433.2M
69 Patrons Bank, N.A. Okmulgee , OK 4.07% $302.0M
70 City National Bank and Trust Company of Lawton, Oklahoma, the Lawton , OK 4.06% $445.1M
71 Cattlemens Bank Altus , OK 4.05% $588.0M
72 Avb Bank Broken Arrow , OK 4.04% $574.3M
73 Nbc Oklahoma Oklahoma City , OK 4.03% $894.2M
74 Seiling State Bank, the Seiling , OK 4.03% $200.7M
75 Bank, N.A., the Mcalester , OK 4.03% $482.4M
76 Vision Bank Ada , OK 4.02% $991.8M
77 All America Bank Oklahoma City , OK 3.99% $615.0M
78 Old Glory Bank Elmore City , OK 3.98% $279.4M
79 American Exchange Bank, Lindsay, Oklahoma Lindsay , OK 3.98% $100.3M
80 First Liberty Bank Oklahoma City , OK 3.97% $835.3M
81 American Bank and Trust Company Tulsa , OK 3.96% $319.7M
82 Shamrock Bank, N.A. Coalgate , OK 3.94% $503.7M
83 Armstrong Bank Muskogee , OK 3.93% $2.71B
84 First Bank of Okarche, the Okarche , OK 3.92% $138.1M
85 Mabrey Bank Bixby , OK 3.90% $1.99B
86 First National Bank and Trust Company, Chickasha, Oklahoma, the Chickasha , OK 3.90% $1.07B
87 Local Bank Hulbert , OK 3.90% $441.4M
88 Bankers Bank, the Oklahoma City , OK 3.90% $303.2M
89 First National Bank & Trust, Elk City, Oklahoma Elk City , OK 3.87% $293.7M
90 Community Bank Alva , OK 3.87% $143.0M
91 First Security Bank and Trust Company Oklahoma City , OK 3.87% $247.9M
92 Rcb Bank Claremore , OK 3.86% $4.07B
93 Stock Exchange Bank, the Woodward , OK 3.85% $309.8M
94 High Plains Bank Okeene , OK 3.83% $211.7M
95 Great Nations Bank Norman , OK 3.82% $114.0M
96 Spiro State Bank Spiro , OK 3.80% $123.3M
97 Chickasaw Community Bank Oklahoma City , OK 3.77% $447.2M
98 Exchange Bank, the Skiatook , OK 3.76% $155.4M
99 American Nation Bank Ardmore , OK 3.74% $688.3M
100 Anchor D Bank Texhoma , OK 3.73% $389.4M

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All data sourced from the most recent FFIEC call report filings, refreshed each quarter as new filings are processed. This leaderboard excludes banks with total assets under $100,000K to filter out anomalous micro-bank ratios. See /data-updates/ for the current data freshness window.

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