United States
Securities and Exchange Commission
Washington, D.C. 20549
Form 10-Q
Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the quarterly period ended: June 30, 20222023
Or
Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the transition period from ________________ to ________________
Commission file number: 001-13221
Cullen/Frost Bankers, Inc.
(Exact name of registrant as specified in its charter)
Texas74-1751768
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
111 W. Houston Street,San Antonio,Texas78205
(Address of principal executive offices)(Zip code)
(210)220-4011
(Registrant's telephone number, including area code)
N/A
(Former name, former address and former fiscal year, if changed since last report
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on
which registered
Common Stock, $.01 Par ValueCFRNew York Stock Exchange
Depositary Shares, each representing a 1/40th interest in a share of 4.450% Non-Cumulative Perpetual Preferred Stock, Series BCFR.PrBNew York Stock Exchange
Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes      No  
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes      No  
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes      No  
As of July 21, 202220, 2023, there were 64,127,97964,123,111 shares of the registrant’s Common Stock, $.01 par value, outstanding.



Cullen/Frost Bankers, Inc.
Quarterly Report on Form 10-Q
June 30, 20222023
Table of Contents
 Page
Item 1.
Item 2.Management's Discussion and Analysis of Financial Condition and Results of Operations
Item 3.
Item 4.
Item 1.
Item 1A.
Item 2.
Item 3.
Item 4.
Item 5.
Item 6.
2

Table of Contents
Part I. Financial Information
Item 1. Financial Statements (Unaudited)
Cullen/Frost Bankers, Inc.
Consolidated Balance Sheets
(Dollars in thousands, except per share amounts)
June 30,
2022
December 31,
2021
June 30,
2023
December 31,
2022
Assets:Assets:Assets:
Cash and due from banksCash and due from banks$743,098 $555,778 Cash and due from banks$680,843 $691,553 
Interest-bearing depositsInterest-bearing deposits12,809,937 15,985,244 Interest-bearing deposits6,329,268 11,128,902 
Federal funds soldFederal funds sold95,900 34,075 Federal funds sold12,575 120,527 
Resell agreementsResell agreements9,650 7,903 Resell agreements84,650 87,150 
Total cash and cash equivalentsTotal cash and cash equivalents13,658,585 16,583,000 Total cash and cash equivalents7,107,336 12,028,132 
Securities held to maturity, net of allowance for credit losses of $158 at June 30, 2022 and $158 at December 31, 20211,946,428 1,749,179 
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 20223,691,220 2,639,083 
Securities available for sale, at estimated fair valueSecurities available for sale, at estimated fair value16,781,685 13,924,628 Securities available for sale, at estimated fair value17,249,257 18,243,605 
Trading account securitiesTrading account securities24,680 25,162 Trading account securities32,517 28,045 
Loans, net of unearned discountsLoans, net of unearned discounts16,736,026 16,336,397 Loans, net of unearned discounts17,746,311 17,154,969 
Less: Allowance for credit losses on loansLess: Allowance for credit losses on loans(239,632)(248,666)Less: Allowance for credit losses on loans(233,619)(227,621)
Net loansNet loans16,496,394 16,087,731 Net loans17,512,692 16,927,348 
Premises and equipment, netPremises and equipment, net1,046,495 1,050,331 Premises and equipment, net1,154,235 1,102,695 
GoodwillGoodwill654,952 654,952 Goodwill654,952 654,952 
Other intangible assets, netOther intangible assets, net589 866 Other intangible assets, net208 386 
Cash surrender value of life insurance policiesCash surrender value of life insurance policies189,823 190,139 Cash surrender value of life insurance policies190,575 190,188 
Accrued interest receivable and other assetsAccrued interest receivable and other assets985,257 612,502 Accrued interest receivable and other assets1,004,208 1,077,942 
Total assetsTotal assets$51,784,888 $50,878,490 Total assets$48,597,200 $52,892,376 
Liabilities:Liabilities:Liabilities:
Deposits:Deposits:Deposits:
Non-interest-bearing demand depositsNon-interest-bearing demand deposits$18,783,931 $18,423,018 Non-interest-bearing demand deposits$14,904,614 $17,598,234 
Interest-bearing depositsInterest-bearing deposits26,817,834 24,272,678 Interest-bearing deposits25,796,216 26,355,962 
Total depositsTotal deposits45,601,765 42,695,696 Total deposits40,700,830 43,954,196 
Federal funds purchasedFederal funds purchased43,200 25,925 Federal funds purchased13,525 51,650 
Repurchase agreementsRepurchase agreements1,664,685 2,740,799 Repurchase agreements3,569,870 4,660,641 
Junior subordinated deferrable interest debentures, net of unamortized issuance costsJunior subordinated deferrable interest debentures, net of unamortized issuance costs123,040 123,011 Junior subordinated deferrable interest debentures, net of unamortized issuance costs123,098 123,069 
Subordinated notes, net of unamortized issuance costsSubordinated notes, net of unamortized issuance costs99,256 99,178 Subordinated notes, net of unamortized issuance costs99,413 99,335 
Accrued interest payable and other liabilitiesAccrued interest payable and other liabilities905,967 754,326 Accrued interest payable and other liabilities703,722 866,257 
Total liabilitiesTotal liabilities48,437,913 46,438,935 Total liabilities45,210,458 49,755,148 
Shareholders’ Equity:Shareholders’ Equity:Shareholders’ Equity:
Preferred stock, par value $0.01 per share; 10,000,000 shares authorized; 150,000 Series B shares ($1,000 liquidation preference) issued at June 30, 2022 and December 31, 2021145,452 145,452 
Common stock, par value $0.01 per share; 210,000,000 shares authorized; 64,236,306 shares issued at June 30, 2022 and December 31, 2021642 642 
Preferred stock, par value $0.01 per share; 10,000,000 shares authorized; 150,000 Series B shares ($1,000 liquidation preference) issued at June 30, 2023 and December 31, 2022Preferred stock, par value $0.01 per share; 10,000,000 shares authorized; 150,000 Series B shares ($1,000 liquidation preference) issued at June 30, 2023 and December 31, 2022145,452 145,452 
Common stock, par value $0.01 per share; 210,000,000 shares authorized; 64,404,582 shares issued at June 30, 2023 and 64,354,695 at December 31, 2022Common stock, par value $0.01 per share; 210,000,000 shares authorized; 64,404,582 shares issued at June 30, 2023 and 64,354,695 at December 31, 2022644 643 
Additional paid-in capitalAdditional paid-in capital1,015,451 1,009,921 Additional paid-in capital1,040,754 1,029,756 
Retained earningsRetained earnings3,070,109 2,956,966 Retained earnings3,532,542 3,309,671 
Accumulated other comprehensive income (loss), net of taxAccumulated other comprehensive income (loss), net of tax(874,206)347,318 Accumulated other comprehensive income (loss), net of tax(1,305,027)(1,348,294)
Treasury stock, at cost; 113,267 shares at June 30, 2022 and 250,070 shares at December 31, 2021(10,473)(20,744)
Treasury stock, at cost; 284,206 shares at June 30, 2023Treasury stock, at cost; 284,206 shares at June 30, 2023(27,623)— 
Total shareholders’ equityTotal shareholders’ equity3,346,975 4,439,555 Total shareholders’ equity3,386,742 3,137,228 
Total liabilities and shareholders’ equityTotal liabilities and shareholders’ equity$51,784,888 $50,878,490 Total liabilities and shareholders’ equity$48,597,200 $52,892,376 
See accompanying Notes to Consolidated Financial Statements.

3

Table of Contents
Cullen/Frost Bankers, Inc.
Consolidated Statements of Income
(Dollars in thousands, except per share amounts)
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Interest income:Interest income:Interest income:
Loans, including feesLoans, including fees$166,679 $182,695 $316,656 $350,178 Loans, including fees$290,552 $166,679 $560,267 $316,656 
Securities:Securities:Securities:
TaxableTaxable56,365 20,602 99,423 40,630 Taxable101,960 56,365 199,735 99,423 
Tax-exemptTax-exempt57,078 56,111 113,944 112,774 Tax-exempt60,637 57,078 127,271 113,944 
Interest-bearing depositsInterest-bearing deposits26,371 3,614 32,714 6,047 Interest-bearing deposits87,748 26,371 186,993 32,714 
Federal funds soldFederal funds sold99 112 11 Federal funds sold305 99 1,063 112 
Resell agreementsResell agreements10 14 Resell agreements1,126 10 2,194 14 
Total interest incomeTotal interest income306,602 263,034 562,863 509,645 Total interest income542,328 306,602 1,077,523 562,863 
Interest expense:Interest expense:Interest expense:
DepositsDeposits14,593 3,499 19,505 7,016 Deposits120,266 14,593 218,255 19,505 
Federal funds purchasedFederal funds purchased75 87 15 Federal funds purchased412 75 995 87 
Repurchase agreementsRepurchase agreements1,790 570 2,308 965 Repurchase agreements33,114 1,790 66,765 2,308 
Junior subordinated deferrable interest debenturesJunior subordinated deferrable interest debentures772 638 1,356 1,284 Junior subordinated deferrable interest debentures2,106 772 4,094 1,356 
Subordinated notesSubordinated notes1,164 1,164 2,328 2,328 Subordinated notes1,164 1,164 2,328 2,328 
Total interest expenseTotal interest expense18,394 5,878 25,584 11,608 Total interest expense157,062 18,394 292,437 25,584 
Net interest incomeNet interest income288,208 257,156 537,279 498,037 Net interest income385,266 288,208 785,086 537,279 
Credit loss expenseCredit loss expense— — — 63 Credit loss expense9,901 — 19,005 — 
Net interest income after credit loss expenseNet interest income after credit loss expense288,208 257,156 537,279 497,974 Net interest income after credit loss expense375,365 288,208 766,081 537,279 
Non-interest income:Non-interest income:Non-interest income:
Trust and investment management feesTrust and investment management fees37,776 37,874 76,432 73,188 Trust and investment management fees39,392 37,776 75,536 76,432 
Service charges on deposit accountsService charges on deposit accounts23,870 19,849 46,610 39,842 Service charges on deposit accounts23,487 23,870 45,366 46,610 
Insurance commissions and feesInsurance commissions and fees11,776 10,773 28,384 28,086 Insurance commissions and fees12,940 11,776 31,892 28,384 
Interchange and card transaction feesInterchange and card transaction fees4,911 4,641 9,137 8,734 Interchange and card transaction fees5,250 4,911 10,139 9,137 
Other charges, commissions and feesOther charges, commissions and fees9,887 8,640 19,514 16,944 Other charges, commissions and fees12,090 9,887 23,794 19,514 
Net gain (loss) on securities transactionsNet gain (loss) on securities transactions— — — — Net gain (loss) on securities transactions33 — 54 — 
OtherOther9,707 9,470 19,240 17,689 Other10,336 9,707 22,012 19,240 
Total non-interest incomeTotal non-interest income97,927 91,247 199,317 184,483 Total non-interest income103,528 97,927 208,793 199,317 
Non-interest expense:Non-interest expense:Non-interest expense:
Salaries and wagesSalaries and wages116,881 97,035 228,210 190,493 Salaries and wages133,195 116,881 263,540 228,210 
Employee benefitsEmployee benefits20,733 18,728 44,953 41,264 Employee benefits26,792 20,733 60,714 44,953 
Net occupancyNet occupancy28,379 26,650 55,790 52,701 Net occupancy31,714 28,379 62,063 55,790 
Technology, furniture and equipmentTechnology, furniture and equipment29,921 27,998 59,078 56,014 Technology, furniture and equipment33,043 29,921 65,524 59,078 
Deposit insuranceDeposit insurance3,724 2,877 7,357 5,805 Deposit insurance6,202 3,724 12,447 7,357 
Intangible amortizationIntangible amortization131 185 277 387 Intangible amortization82 131 178 277 
OtherOther46,578 41,781 89,414 78,732 Other54,014 46,578 105,718 89,414 
Total non-interest expenseTotal non-interest expense246,347 215,254 485,079 425,396 Total non-interest expense285,042 246,347 570,184 485,079 
Income before income taxesIncome before income taxes139,788 133,149 251,517 257,061 Income before income taxes193,851 139,788 404,690 251,517 
Income taxesIncome taxes20,674 15,081 33,301 22,978 Income taxes31,733 20,674 64,919 33,301 
Net incomeNet income119,114 118,068 218,216 234,083 Net income162,118 119,114 339,771 218,216 
Preferred stock dividendsPreferred stock dividends1,669 1,669 3,338 3,820 Preferred stock dividends1,669 1,669 3,338 3,338 
Net income available to common shareholdersNet income available to common shareholders$117,445 $116,399 $214,878 $230,263 Net income available to common shareholders$160,449 $117,445 $336,433 $214,878 
Earnings per common share:Earnings per common share:Earnings per common share:
BasicBasic$1.82 $1.81 $3.32 $3.59 Basic$2.47 $1.82 $5.18 $3.32 
DilutedDiluted1.81 1.80 3.31 3.57 Diluted2.47 1.81 5.17 3.31 
See accompanying Notes to Consolidated Financial Statements.
4

Table of Contents
Cullen/Frost Bankers, Inc.
Consolidated Statements of Comprehensive Income (Loss)
(Dollars in thousands)
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Net incomeNet income$119,114 $118,068 $218,216 $234,083 Net income$162,118 $119,114 $339,771 $218,216 
Other comprehensive income (loss), before tax:Other comprehensive income (loss), before tax:Other comprehensive income (loss), before tax:
Securities available for sale and transferred securities:Securities available for sale and transferred securities:Securities available for sale and transferred securities:
Change in net unrealized gain/loss during the periodChange in net unrealized gain/loss during the period(636,523)30,668 (1,547,318)(129,111)Change in net unrealized gain/loss during the period(206,863)(636,523)53,406 (1,547,318)
Change in net unrealized gain on securities transferred to held to maturityChange in net unrealized gain on securities transferred to held to maturity(189)(245)(398)(504)Change in net unrealized gain on securities transferred to held to maturity(162)(189)(322)(398)
Reclassification adjustment for net (gains) losses included in net incomeReclassification adjustment for net (gains) losses included in net income— — — — Reclassification adjustment for net (gains) losses included in net income(33)— (54)— 
Total securities available for sale and transferred securitiesTotal securities available for sale and transferred securities(636,712)30,423 (1,547,716)(129,615)Total securities available for sale and transferred securities(207,058)(636,712)53,030 (1,547,716)
Defined-benefit post-retirement benefit plans:Defined-benefit post-retirement benefit plans:Defined-benefit post-retirement benefit plans:
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)741 1,529 1,482 3,058 Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)870 741 1,740 1,482 
Total defined-benefit post-retirement benefit plansTotal defined-benefit post-retirement benefit plans741 1,529 1,482 3,058 Total defined-benefit post-retirement benefit plans870 741 1,740 1,482 
Other comprehensive income (loss), before taxOther comprehensive income (loss), before tax(635,971)31,952 (1,546,234)(126,557)Other comprehensive income (loss), before tax(206,188)(635,971)54,770 (1,546,234)
Deferred tax expense (benefit)Deferred tax expense (benefit)(133,555)6,710 (324,710)(26,577)Deferred tax expense (benefit)(43,299)(133,555)11,503 (324,710)
Other comprehensive income (loss), net of taxOther comprehensive income (loss), net of tax(502,416)25,242 (1,221,524)(99,980)Other comprehensive income (loss), net of tax(162,889)(502,416)43,267 (1,221,524)
Comprehensive income (loss)Comprehensive income (loss)$(383,302)$143,310 $(1,003,308)$134,103 Comprehensive income (loss)$(771)$(383,302)$383,038 $(1,003,308)
See accompanying Notes to Consolidated Financial Statements.
5

Table of Contents
Cullen/Frost Bankers, Inc.
Consolidated Statements of Changes in Shareholders’ Equity
(Dollars in thousands, except per share amounts)
Preferred
Stock
Common
Stock
Additional
Paid-In
Capital
Retained
Earnings
Accumulated
Other
Comprehensive
Income (Loss),
Net of Tax
Treasury
Stock
TotalPreferred
Stock
Common
Stock
Additional
Paid-In
Capital
Retained
Earnings
Accumulated
Other
Comprehensive
Income (Loss),
Net of Tax
Treasury
Stock
Total
Three months ended:Three months ended:Three months ended:
June 30, 2023June 30, 2023
Balance at beginning of periodBalance at beginning of period$145,452 $644 $1,035,961 $3,428,991 $(1,142,138)$(1,109)$3,467,801 
Net incomeNet income— — — 162,118 — — 162,118 
Other comprehensive income (loss), net of taxOther comprehensive income (loss), net of tax— — — — (162,889)— (162,889)
Stock option exercises/stock unit conversions (13,626 shares)Stock option exercises/stock unit conversions (13,626 shares)— — — (491)— 1,437 946 
Stock-based compensation expense recognized in earningsStock-based compensation expense recognized in earnings— — 4,793 — — — 4,793 
Purchase of treasury stock (289,149 shares)Purchase of treasury stock (289,149 shares)— — — — — (27,951)(27,951)
Cash dividends – Series B preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depositary share)Cash dividends – Series B preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depositary share)— — — (1,669)— — (1,669)
Cash dividends – common stock ($0.87 per share)Cash dividends – common stock ($0.87 per share)— — — (56,407)— — (56,407)
Balance at end of periodBalance at end of period$145,452 $644 $1,040,754 $3,532,542 $(1,305,027)$(27,623)$3,386,742 
June 30, 2022June 30, 2022June 30, 2022
Balance at beginning of periodBalance at beginning of period$145,452 $642 $1,012,033 $3,002,642 $(371,790)$(12,687)$3,776,292 Balance at beginning of period$145,452 $642 $1,012,033 $3,002,642 $(371,790)$(12,687)$3,776,292 
Net incomeNet income— — — 119,114 — — 119,114 Net income— — — 119,114 — — 119,114 
Other comprehensive income (loss), net of taxOther comprehensive income (loss), net of tax— — — — (502,416)— (502,416)Other comprehensive income (loss), net of tax— — — — (502,416)— (502,416)
Stock option exercises/stock unit conversions (28,832 shares)Stock option exercises/stock unit conversions (28,832 shares)— — — (1,463)— 2,214 751 Stock option exercises/stock unit conversions (28,832 shares)— — — (1,463)— 2,214 751 
Stock-based compensation expense recognized in earningsStock-based compensation expense recognized in earnings— — 3,418 — — — 3,418 Stock-based compensation expense recognized in earnings— — 3,418 — — — 3,418 
Cash dividends – Series B preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depositary share)Cash dividends – Series B preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depositary share)— — — (1,669)— — (1,669)Cash dividends – Series B preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depositary share)— — — (1,669)— — (1,669)
Cash dividends – common stock ($0.75 per share)Cash dividends – common stock ($0.75 per share)— — — (48,515)— — (48,515)Cash dividends – common stock ($0.75 per share)— — — (48,515)— — (48,515)
Balance at end of periodBalance at end of period$145,452 $642 $1,015,451 $3,070,109 $(874,206)$(10,473)$3,346,975 Balance at end of period$145,452 $642 $1,015,451 $3,070,109 $(874,206)$(10,473)$3,346,975 
June 30, 2021
Balance at beginning of period$145,452 $642 $999,694 $2,797,064 $387,748 $(62,682)$4,267,918 
Net income— — — 118,068 — — 118,068 
Other comprehensive income (loss), net of tax— — — — 25,242 — 25,242 
Stock option exercises/stock unit conversions (114,252 shares)— — — (4,225)— 11,510 7,285 
Stock-based compensation expense recognized in earnings— — 3,245 — — — 3,245 
Cash dividends – Series B preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depositary share)— — — (1,669)— — (1,669)
Cash dividends – common stock ($0.72 per share)— — — (46,272)— — (46,272)
Balance at end of period$145,452 $642 $1,002,939 $2,862,966 $412,990 $(51,172)$4,373,817 
See accompanying Notes to Consolidated Financial Statements

6

Table of Contents
Cullen/Frost Bankers, Inc.
Consolidated Statements of Changes in Shareholders’ Equity
(Dollars in thousands, except per share amounts)
Preferred
Stock
Common
Stock
Additional
Paid-In
Capital
Retained
Earnings
Accumulated
Other
Comprehensive
Income (Loss),
Net of Tax
Treasury
Stock
TotalPreferred
Stock
Common
Stock
Additional
Paid-In
Capital
Retained
Earnings
Accumulated
Other
Comprehensive
Income (Loss),
Net of Tax
Treasury
Stock
Total
Six months ended:Six months ended:Six months ended:
June 30, 2023June 30, 2023
Balance at beginning of periodBalance at beginning of period$145,452 $643 $1,029,756 $3,309,671 $(1,348,294)$— $3,137,228 
Net incomeNet income— — — 339,771 — — 339,771 
Other comprehensive income (loss), net of taxOther comprehensive income (loss), net of tax— — — — 43,267 — 43,267 
Stock option exercises/stock unit conversions (64,013 shares)Stock option exercises/stock unit conversions (64,013 shares)— 1,463 (519)— 1,501 2,446 
Stock-based compensation expense recognized in earningsStock-based compensation expense recognized in earnings— — 9,535 — — — 9,535 
Purchase of treasury stock (298,332 shares)Purchase of treasury stock (298,332 shares)— — — — — (29,124)(29,124)
Cash dividends – Series B preferred stock (approximately $22.25 per share which is equivalent to approximately $0.56 per depositary share)Cash dividends – Series B preferred stock (approximately $22.25 per share which is equivalent to approximately $0.56 per depositary share)— — — (3,338)— — (3,338)
Cash dividends – common stock ($1.74 per share)Cash dividends – common stock ($1.74 per share)— — — (113,043)— — (113,043)
Balance at end of periodBalance at end of period$145,452 $644 $1,040,754 $3,532,542 $(1,305,027)$(27,623)$3,386,742 
June 30, 2022June 30, 2022June 30, 2022
Balance at beginning of periodBalance at beginning of period$145,452 $642 $1,009,921 $2,956,966 $347,318 $(20,744)$4,439,555 Balance at beginning of period$145,452 $642 $1,009,921 $2,956,966 $347,318 $(20,744)$4,439,555 
Net incomeNet income— — — 218,216 — — 218,216 Net income— — — 218,216 — — 218,216 
Other comprehensive income (loss), net of taxOther comprehensive income (loss), net of tax— — — — (1,221,524)— (1,221,524)Other comprehensive income (loss), net of tax— — — — (1,221,524)— (1,221,524)
Stock option exercises/stock unit conversions (144,262 shares)Stock option exercises/stock unit conversions (144,262 shares)— — — (4,777)— 11,267 6,490 Stock option exercises/stock unit conversions (144,262 shares)— — — (4,777)— 11,267 6,490 
Stock-based compensation expense recognized in earningsStock-based compensation expense recognized in earnings— — 5,530 — — — 5,530 Stock-based compensation expense recognized in earnings— — 5,530 — — — 5,530 
Purchase of treasury stock (7,459 shares)Purchase of treasury stock (7,459 shares)— — — — — (996)(996)Purchase of treasury stock (7,459 shares)— — — — — (996)(996)
Cash dividends – Series B preferred stock (approximately $22.25 per share which is equivalent to approximately $0.56 per depositary share)Cash dividends – Series B preferred stock (approximately $22.25 per share which is equivalent to approximately $0.56 per depositary share)— — — (3,338)— — (3,338)Cash dividends – Series B preferred stock (approximately $22.25 per share which is equivalent to approximately $0.56 per depositary share)— — — (3,338)— — (3,338)
Cash dividends – common stock ($1.50 per share)Cash dividends – common stock ($1.50 per share)— — — (96,958)— — (96,958)Cash dividends – common stock ($1.50 per share)— — — (96,958)— — (96,958)
Balance at end of periodBalance at end of period$145,452 $642 $1,015,451 $3,070,109 $(874,206)$(10,473)$3,346,975 Balance at end of period$145,452 $642 $1,015,451 $3,070,109 $(874,206)$(10,473)$3,346,975 
June 30, 2021
Balance at beginning of period$145,452 $642 $997,168 $2,750,723 $512,970 $(113,939)$4,293,016 
Net income— — — 234,083 — — 234,083 
Other comprehensive income (loss), net of tax— — — — (99,980)— (99,980)
Stock option exercises/stock unit conversions (628,076 shares)— — — (25,567)— 62,249 36,682 
Stock-based compensation expense recognized in earnings— — 5,771 — — — 5,771 
Purchase of treasury stock (11,625 shares)— — — — — (1,288)(1,288)
Treasury stock issued to the 401(k) stock purchase plan (18,555 shares)— — — (57)— 1,806 1,749 
Cash dividends – Series B preferred stock (approximately $25.46 per share which is equivalent to approximately $0.64 per depositary share)— — — (3,820)— — (3,820)
Cash dividends – common stock ($1.44 per share)— — — (92,396)— — (92,396)
Balance at end of period$145,452 $642 $1,002,939 $2,862,966 $412,990 $(51,172)$4,373,817 
See accompanying Notes to Consolidated Financial Statements




7

Table of Contents
Cullen/Frost Bankers, Inc.
Consolidated Statements of Cash Flows
(Dollars in thousands)
Six Months Ended
June 30,
Six Months Ended
June 30,
2022202120232022
Operating Activities:Operating Activities:Operating Activities:
Net incomeNet income$218,216 $234,083 Net income$339,771 $218,216 
Adjustments to reconcile net income to net cash from operating activities:Adjustments to reconcile net income to net cash from operating activities:Adjustments to reconcile net income to net cash from operating activities:
Credit loss expenseCredit loss expense— 63 Credit loss expense19,005 — 
Deferred tax expense (benefit)Deferred tax expense (benefit)(2,404)5,188 Deferred tax expense (benefit)(2,489)(2,404)
Accretion of loan discountsAccretion of loan discounts(6,581)(6,577)Accretion of loan discounts(9,265)(6,581)
Securities premium amortization (discount accretion), netSecurities premium amortization (discount accretion), net53,225 60,434 Securities premium amortization (discount accretion), net36,919 53,225 
Net (gain) loss on securities transactionsNet (gain) loss on securities transactions— — Net (gain) loss on securities transactions(54)— 
Depreciation and amortizationDepreciation and amortization35,406 34,060 Depreciation and amortization37,076 35,406 
Net (gain) loss on sale/write-down of assets/foreclosed assetsNet (gain) loss on sale/write-down of assets/foreclosed assets103 (1,876)Net (gain) loss on sale/write-down of assets/foreclosed assets(283)103 
Stock-based compensationStock-based compensation5,530 5,771 Stock-based compensation9,535 5,530 
Net tax benefit from stock-based compensationNet tax benefit from stock-based compensation1,645 4,218 Net tax benefit from stock-based compensation469 1,645 
Earnings on life insurance policiesEarnings on life insurance policies(1,016)(1,343)Earnings on life insurance policies(1,387)(1,016)
Net change in:Net change in:Net change in:
Trading account securitiesTrading account securities482 319 Trading account securities335 482 
Lease right-of-use assetsLease right-of-use assets12,042 11,697 Lease right-of-use assets11,193 12,042 
Accrued interest receivable and other assetsAccrued interest receivable and other assets(135,239)(39,195)Accrued interest receivable and other assets59,051 (135,239)
Accrued interest payable and other liabilitiesAccrued interest payable and other liabilities113,645 41,748 Accrued interest payable and other liabilities(176,718)113,645 
Net cash from operating activitiesNet cash from operating activities295,054 348,590 Net cash from operating activities323,158 295,054 
Investing Activities:Investing Activities:Investing Activities:
Securities held to maturity:Securities held to maturity:Securities held to maturity:
PurchasesPurchases(411,527)— Purchases(1,141,443)(411,527)
Maturities, calls and principal repaymentsMaturities, calls and principal repayments263,226 122,416 Maturities, calls and principal repayments92,547 263,226 
Securities available for sale:Securities available for sale:Securities available for sale:
PurchasesPurchases(4,778,475)(801,167)Purchases(7,607,014)(4,778,475)
SalesSales— — Sales1,543,355 — 
Maturities, calls and principal repaymentsMaturities, calls and principal repayments382,152 576,763 Maturities, calls and principal repayments7,077,003 382,152 
Proceeds from sale of loansProceeds from sale of loans2,365 — Proceeds from sale of loans2,215 2,365 
Net change in loansNet change in loans(404,515)884,799 Net change in loans(602,902)(404,515)
Benefits received on life insurance policiesBenefits received on life insurance policies1,332 1,509 Benefits received on life insurance policies1,000 1,332 
Proceeds from sales of premises and equipmentProceeds from sales of premises and equipment18 6,436 Proceeds from sales of premises and equipment1,179 18 
Purchases of premises and equipmentPurchases of premises and equipment(28,016)(28,053)Purchases of premises and equipment(85,156)(28,016)
Proceeds from sales of repossessed propertiesProceeds from sales of repossessed properties1,543 100 Proceeds from sales of repossessed properties583 1,543 
Net cash from investing activitiesNet cash from investing activities(4,971,897)762,803 Net cash from investing activities(718,633)(4,971,897)
Financing Activities:Financing Activities:Financing Activities:
Net change in depositsNet change in deposits2,906,069 3,718,379 Net change in deposits(3,253,366)2,906,069 
Net change in short-term borrowingsNet change in short-term borrowings(1,058,839)126,592 Net change in short-term borrowings(1,128,896)(1,058,839)
Proceeds from stock option exercisesProceeds from stock option exercises6,490 36,682 Proceeds from stock option exercises2,446 6,490 
Purchase of treasury stockPurchase of treasury stock(996)(1,288)Purchase of treasury stock(29,124)(996)
Cash dividends paid on preferred stockCash dividends paid on preferred stock(3,338)(3,820)Cash dividends paid on preferred stock(3,338)(3,338)
Cash dividends paid on common stockCash dividends paid on common stock(96,958)(92,396)Cash dividends paid on common stock(113,043)(96,958)
Net cash from financing activitiesNet cash from financing activities1,752,428 3,784,149 Net cash from financing activities(4,525,321)1,752,428 
Net change in cash and cash equivalentsNet change in cash and cash equivalents(2,924,415)4,895,542 Net change in cash and cash equivalents(4,920,796)(2,924,415)
Cash and cash equivalents at beginning of periodCash and cash equivalents at beginning of period16,583,000 10,288,853 Cash and cash equivalents at beginning of period12,028,132 16,583,000 
Cash and cash equivalents at end of periodCash and cash equivalents at end of period$13,658,585 $15,184,395 Cash and cash equivalents at end of period$7,107,336 $13,658,585 

See accompanying Notes to Consolidated Financial Statements.
8

Table of Contents
Notes to Consolidated Financial Statements
(Table amounts in thousands, except for share and per share amounts)
Note 1 - Significant Accounting Policies
Nature of Operations. Cullen/Frost Bankers, Inc. (“Cullen/Frost”) is a financial holding company and a bank holding company headquartered in San Antonio, Texas that provides, through its subsidiaries, a broad array of products and services throughout numerous Texas markets. The terms “Cullen/Frost,” “the Corporation,” “we,” “us” and “our” mean Cullen/Frost Bankers, Inc. and its subsidiaries, when appropriate. In addition to general commercial and consumer banking, other products and services offered include trust and investment management, insurance, brokerage, mutual funds, leasing, treasury management, capital markets advisory and item processing.
Basis of Presentation. The consolidated financial statements in this Quarterly Report on Form 10-Q include the accounts of Cullen/Frost and all other entities in which Cullen/Frost has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. The accounting and financial reporting policies we follow conform, in all material respects, to accounting principles generally accepted in the United States and to general practices within the financial services industry.
The consolidated financial statements in this Quarterly Report on Form 10-Q have not been audited by an independent registered public accounting firm, but in the opinion of management, reflect all adjustments necessary for a fair presentation of our financial position and results of operations. All such adjustments were of a normal and recurring nature. The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q adopted by the Securities and Exchange Commission (“SEC”). Accordingly, the financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements and should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2021,2022, included in our Annual Report on Form 10-K filed with the SEC on February 4, 3, 2023 (the “2022 (the “2021 Form 10-K”10-K). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.
Use of Estimates. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The allowance for loan losses and the fair values of financial instruments and the status of contingencies are particularly subject to change.
Cash Flow Reporting. Additional cash flow information was as follows:
Six Months Ended
June 30,
Six Months Ended
June 30,
2022202120232022
Cash paid for interestCash paid for interest$22,551 $15,936 Cash paid for interest$270,358 $22,551 
Cash paid for income taxesCash paid for income taxes45,500 15,400 Cash paid for income taxes66,500 45,500 
Significant non-cash transactions:Significant non-cash transactions:Significant non-cash transactions:
Unsettled securities transactionsUnsettled securities transactions110,623 358,752 Unsettled securities transactions10,988 110,623 
Loans foreclosed and transferred to other real estate owned and foreclosed assets— 3,251 
Right-of-use lease assets obtained in exchange for lessee operating lease liabilitiesRight-of-use lease assets obtained in exchange for lessee operating lease liabilities8,857 1,552 Right-of-use lease assets obtained in exchange for lessee operating lease liabilities8,914 8,857 
Treasury stock issued to 401(k) stock purchase plan— 1,749 
Accounting Changes, Reclassifications and Restatements. Certain items in prior financial statements have been reclassified to conform to the current presentation.
9

Table of Contents
Note 2 - Securities
Securities - Held to Maturity. A summary of the amortized cost, fair value and allowance for credit losses related to securities held to maturity as of June 30, 20222023 and December 31, 20212022 is presented below.
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair Value
Allowance
for Credit
Losses
Net
Carrying
Amount
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair Value
Allowance
for Credit
Losses
Net
Carrying
Amount
June 30, 2022
June 30, 2023June 30, 2023
Residential mortgage-backed securitiesResidential mortgage-backed securities$526,675 $— $40,383 $486,292 $— $526,675 Residential mortgage-backed securities$1,265,818 $— $72,286 $1,193,532 $— $1,265,818 
States and political subdivisionsStates and political subdivisions1,418,411 3,956 81,583 1,340,784 (158)1,418,253 States and political subdivisions2,424,169 24,288 99,491 2,348,966 (267)2,423,902 
OtherOther1,500 — 61 1,439 — 1,500 Other1,500 — 69 1,431 — 1,500 
TotalTotal$1,946,586 $3,956 $122,027 $1,828,515 $(158)$1,946,428 Total$3,691,487 $24,288 $171,846 $3,543,929 $(267)$3,691,220 
December 31, 2021
December 31, 2022December 31, 2022
Residential mortgage-backed securitiesResidential mortgage-backed securities$527,264 $18,766 $— $546,030 $— $527,264 Residential mortgage-backed securities$526,122 $— $65,322 $460,800 $— $526,122 
States and political subdivisionsStates and political subdivisions1,220,573 41,141 101 1,261,613 (158)1,220,415 States and political subdivisions2,111,619 13,048 119,033 2,005,634 (158)2,111,461 
OtherOther1,500 — — 1,500 — 1,500 Other1,500 — 69 1,431 — 1,500 
TotalTotal$1,749,337 $59,907 $101 $1,809,143 $(158)$1,749,179 Total$2,639,241 $13,048 $184,424 $2,467,865 $(158)$2,639,083 
All mortgage-backed securities included in the above table were issued by U.S. government agencies and corporations. The carrying value of held-to-maturity securities pledged to secure public funds, trust deposits, repurchase agreements and for other purposes, as required or permitted by law was $245.5$943.9 million and $642.3$256.3 million at June 30, 20222023 and December 31, 2021,2022, respectively. Accrued interest receivable on held-to-maturity securities totaled $18.0$39.4 million and $18.4$30.2 million at June 30, 20222023 and December 31, 2021,2022, respectively and is included in accrued interest receivable and other assets in the accompanying consolidated balance sheets.
From time to time, we have reclassified certain securities from available for sale to held to maturity. The net unamortized, unrealized gain remaining on transferred securities included in accumulated other comprehensive income in the accompanying balance sheet totaled $2.1$1.5 million ($1.71.2 million, net of tax) at June 30, 20222023 and $2.5$1.8 million ($2.01.4 million, net of tax) at December 31, 2021.2022. This amount will be amortized out of accumulated other comprehensive income over the remaining life of the underlying securities as an adjustment of the yield on those securities.
The following table summarizes Moody's and/or Standard & Poor's bond ratings for our portfolio of held-to-maturity securities issued by States and political subdivisions and other securities as of June 30, 20222023 and December 31, 2021:2022:
States and Political SubdivisionsStates and Political Subdivisions
Not Guaranteed or Pre-RefundedGuaranteed by the Texas PSFPre-RefundedTotalOther
Securities
Not Guaranteed or Pre-RefundedGuaranteed by the Texas PSFGuaranteed by Third PartyPre-RefundedTotalOther
Securities
June 30, 2022
June 30, 2023June 30, 2023
Aaa/AAAAaa/AAA$161,274 $764,405 $344,335 $1,270,014 $— Aaa/AAA$301,922 $1,544,702 $13,656 $52,860 $1,913,140 $— 
Aa/AAAa/AA148,397 — — 148,397 — Aa/AA504,928 — 6,101 — 511,029 — 
Not ratedNot rated— — — — 1,500 Not rated— — — — — 1,500 
TotalTotal$309,671 $764,405 $344,335 $1,418,411 $1,500 Total$806,850 $1,544,702 $19,757 $52,860 $2,424,169 $1,500 
December 31, 2021
December 31, 2022December 31, 2022
Aaa/AAAAaa/AAA$92,379 $460,648 $563,251 $1,116,278 $— Aaa/AAA$273,201 $1,422,442 $— $121,961 $1,817,604 $— 
Aa/AAAa/AA104,295 — — 104,295 — Aa/AA294,015 — — — 294,015 — 
Not ratedNot rated— — — — 1,500 Not rated— — — — — 1,500 
TotalTotal$196,674 $460,648 $563,251 $1,220,573 $1,500 Total$567,216 $1,422,442 $— $121,961 $2,111,619 $1,500 
10

Table of Contents
The following table details activity in the allowance for credit losses on held-to-maturity securities during the three and six months ended June 30, 20222023 and 2021.2022.
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Beginning balanceBeginning balance$158 $158 $158 $160 Beginning balance$262 $158 $158 $158 
Credit loss expense (benefit)Credit loss expense (benefit)— — — (2)Credit loss expense (benefit)— 109 — 
Ending balanceEnding balance$158 $158 $158 $158 Ending balance$267 $158 $267 $158 
Securities - Available for Sale. A summary of the amortized cost, fair value and allowance for credit losses related to securities available for sale as of June 30, 20222023 and December 31, 20212022 is presented below.
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Allowance
for Credit
Losses
Estimated
Fair Value
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Allowance
for Credit
Losses
Estimated
Fair Value
June 30, 2022
June 30, 2023June 30, 2023
U.S. TreasuryU.S. Treasury$4,656,896 $2,093 $242,690 $— $4,416,299 U.S. Treasury$5,456,656 $— $383,768 $— $5,072,888 
Residential mortgage-backed securitiesResidential mortgage-backed securities5,967,803 3,443 635,521 — 5,335,725 Residential mortgage-backed securities7,725,403 5,105 937,733 — 6,792,775 
States and political subdivisionsStates and political subdivisions7,183,199 50,465 246,368 — 6,987,296 States and political subdivisions5,636,095 1,098 296,177 — 5,341,016 
OtherOther42,365 — — — 42,365 Other42,578 — — — 42,578 
TotalTotal$17,850,263 $56,001 $1,124,579 $— $16,781,685 Total$18,860,732 $6,203 $1,617,678 $— $17,249,257 
December 31, 2021
December 31, 2022December 31, 2022
U.S. TreasuryU.S. Treasury$2,165,702 $23,333 $9,602 $— $2,179,433 U.S. Treasury$5,450,546 $— $398,959 $— $5,051,587 
Residential mortgage-backed securitiesResidential mortgage-backed securities4,059,692 31,662 25,089 — 4,066,265 Residential mortgage-backed securities7,316,824 8,050 948,638 — 6,376,236 
States and political subdivisionsStates and political subdivisions7,178,135 463,810 5,374 — 7,636,571 States and political subdivisions7,098,635 9,108 334,388 — 6,773,355 
OtherOther42,359 — — — 42,359 Other42,427 — — — 42,427 
TotalTotal$13,445,888 $518,805 $40,065 $— $13,924,628 Total$19,908,432 $17,158 $1,681,985 $— $18,243,605 
All mortgage-backed securities included in the above table were issued by U.S. government agencies and corporations. At June 30, 2022,2023, all of the securities in our available for sale municipal bond portfolio were issued by the State of Texas or political subdivisions or agencies within the State of Texas, of which approximately 75.3%74.3% are either guaranteed by the PSFTexas Permanent School Fund (“PSF”) or have been pre-refunded. Securities with limited marketability, such as stock in the Federal Reserve Bank and the Federal Home Loan Bank, are carried at cost and are reported as other available for sale securities in the table above. The carrying value of available-for-sale securities pledged to secure public funds, trust deposits, repurchase agreements and for other purposes, as required or permitted by law was $4.4$5.2 billion and $5.8$8.0 billion at June 30, 20222023 and December 31, 2021,2022, respectively. Accrued interest receivable on available-for-sale securities totaled $131.3$121.8 million and $120.5$140.6 million at June 30, 20222023 and December 31, 2021,2022, respectively, and is included in accrued interest receivable and other assets in the accompanying consolidated balance sheets.
The table below summarizes, as of June 30, 2022,2023, securities available for sale in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by type of security and length of time in a continuous unrealized loss position.
Less than 12 MonthsMore than 12 MonthsTotalLess than 12 MonthsMore than 12 MonthsTotal
Estimated
Fair Value
Unrealized
Losses
Estimated
Fair Value
Unrealized
Losses
Estimated
Fair Value
Unrealized
Losses
Estimated
Fair Value
Unrealized
Losses
Estimated
Fair Value
Unrealized
Losses
Estimated
Fair Value
Unrealized
Losses
U.S. TreasuryU.S. Treasury$4,224,018 $242,690 $— $— $4,224,018 $242,690 U.S. Treasury$1,487,790 $58,237 $3,585,097 $325,531 $5,072,887 $383,768 
Residential mortgage-backed securitiesResidential mortgage-backed securities4,825,871 568,405 369,098 67,116 5,194,969 635,521 Residential mortgage-backed securities2,176,299 65,646 4,239,828 872,087 6,416,127 937,733 
States and political subdivisionsStates and political subdivisions3,249,625 241,884 13,824 4,484 3,263,449 246,368 States and political subdivisions3,391,385 45,640 1,543,520 250,537 4,934,905 296,177 
TotalTotal$12,299,514 $1,052,979 $382,922 $71,600 $12,682,436 $1,124,579 Total$7,055,474 $169,523 $9,368,445 $1,448,155 $16,423,919 $1,617,678 
As of June 30, 2022,2023, no allowance for credit losses has been recognized on available for sale securities in an unrealized loss position as management does not believe any of the securities are impaired due to reasons of credit quality. This is based upon our analysis of the underlying risk characteristics, including credit ratings, and other qualitative factors related to our available for sale securities and in consideration of our historical credit loss experience and internal forecasts. The issuers of these securities continue to make timely principal and interest payments under the contractual terms of the securities. Furthermore, management does not have the intent to sell any of the securities classified as available for sale in the table above and believes that it is more likely than not that we will not have to sell any such securities before a recovery of cost. The unrealized losses
11

Table of Contents
are due to increases in market interest rates over the yields available at the time the underlying securities were purchased. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline.
Contractual Maturities. The following table summarizes the maturity distribution schedule of securities held to maturity and securities available for sale as of June 30, 2022.2023. Mortgage-backed securities are included in maturity categories based on their stated maturity date. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Other securities classified as available for sale include stock in the Federal Reserve Bank and the Federal Home Loan Bank, which have no maturity date. These securities have been included in the total column only.
Within 1 Year1 - 5 Years5 - 10 YearsAfter 10 YearsTotalWithin 1 Year1 - 5 Years5 - 10 YearsAfter 10 YearsTotal
Held To MaturityHeld To MaturityHeld To Maturity
Amortized CostAmortized CostAmortized Cost
Residential mortgage-backed securitiesResidential mortgage-backed securities$$— $514,582 $12,090 $526,675 Residential mortgage-backed securities$— $— $513,530 $752,288 $1,265,818 
States and political subdivisionsStates and political subdivisions350,365 84,053 22,102 961,891 1,418,411 States and political subdivisions59,282 14,024 37,558 2,313,305 2,424,169 
OtherOther— 1,500 — — 1,500 Other— 1,500 — — 1,500 
TotalTotal$350,368 $85,553 $536,684 $973,981 $1,946,586 Total$59,282 $15,524 $551,088 $3,065,593 $3,691,487 
Estimated Fair ValueEstimated Fair ValueEstimated Fair Value
Residential mortgage-backed securitiesResidential mortgage-backed securities$$— $475,721 $10,568 $486,292 Residential mortgage-backed securities$— $— $450,850 $742,682 $1,193,532 
States and political subdivisionsStates and political subdivisions351,237 84,787 22,166 882,594 1,340,784 States and political subdivisions59,242 13,949 36,609 2,239,166 2,348,966 
OtherOther— 1,439 — — 1,439 Other— 1,431 — — 1,431 
TotalTotal$351,240 $86,226 $497,887 $893,162 $1,828,515 Total$59,242 $15,380 $487,459 $2,981,848 $3,543,929 
Available For SaleAvailable For SaleAvailable For Sale
Amortized CostAmortized CostAmortized Cost
U. S. TreasuryU. S. Treasury$— $3,031,706 $1,433,320 $191,870 $4,656,896 U. S. Treasury$1,286,197 $2,542,538 $1,435,692 $192,229 $5,456,656 
Residential mortgage-backed securitiesResidential mortgage-backed securities55 11,080 18,743 5,937,925 5,967,803 Residential mortgage-backed securities310 4,985 15,986 7,704,122 7,725,403 
States and political subdivisionsStates and political subdivisions207,078 1,546,995 902,953 4,526,173 7,183,199 States and political subdivisions439,111 317,371 831,502 4,048,111 5,636,095 
OtherOther— — — — 42,365 Other— — — — 42,578 
TotalTotal$207,133 $4,589,781 $2,355,016 $10,655,968 $17,850,263 Total$1,725,618 $2,864,894 $2,283,180 $11,944,462 $18,860,732 
Estimated Fair ValueEstimated Fair ValueEstimated Fair Value
U. S. TreasuryU. S. Treasury$— $2,957,018 $1,301,539 $157,742 $4,416,299 U. S. Treasury$1,257,329 $2,420,131 $1,250,420 $145,008 $5,072,888 
Residential mortgage-backed securitiesResidential mortgage-backed securities55 11,231 18,792 5,305,647 5,335,725 Residential mortgage-backed securities305 4,865 15,898 6,771,707 6,792,775 
States and political subdivisionsStates and political subdivisions209,138 1,579,097 893,132 4,305,929 6,987,296 States and political subdivisions438,969 315,373 811,631 3,775,043 5,341,016 
OtherOther— — — — 42,365 Other— — — — 42,578 
TotalTotal$209,193 $4,547,346 $2,213,463 $9,769,318 $16,781,685 Total$1,696,603 $2,740,369 $2,077,949 $10,691,758 $17,249,257 
Sales of Securities. Noheld to maturity orSales of available for sale securities were sold during the three or six months ended June 30, 2022 or 2021.as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Proceeds from sales$659,082 $— $1,543,355 $— 
Gross realized gains561 — 5,417 — 
Gross realized losses(528)— (5,363)— 
Tax (expense) benefit of securities gains/losses(7)— (11)— 
Premiums and Discounts. Premium amortization and discount accretion included in interest income on securities was as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Premium amortizationPremium amortization$(28,053)$(30,541)$(57,113)$(61,776)Premium amortization$(21,242)$(28,053)$(47,167)$(57,113)
Discount accretionDiscount accretion2,482 705 3,888 1,342 Discount accretion4,843 2,482 10,248 3,888 
Net (premium amortization) discount accretionNet (premium amortization) discount accretion$(25,571)$(29,836)$(53,225)$(60,434)Net (premium amortization) discount accretion$(16,399)$(25,571)$(36,919)$(53,225)
12

Table of Contents
Trading Account Securities. Trading account securities, at estimated fair value, were as follows:
June 30,
2022
December 31,
2021
U.S. Treasury$24,615 $24,237 
States and political subdivisions65 925 
Total$24,680 $25,162 
12

Table of Contents
June 30,
2023
December 31,
2022
U.S. Treasury$27,546 $25,879 
States and political subdivisions4,971 2,166 
Total$32,517 $28,045 
Net gains and losses on trading account securities were as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Net gain on sales transactionsNet gain on sales transactions$1,012 $293 $1,352 $402 Net gain on sales transactions$903 $1,012 $1,871 $1,352 
Net mark-to-market gains (losses)Net mark-to-market gains (losses)(76)— (244)(69)Net mark-to-market gains (losses)(10)(76)(27)(244)
Net gain (loss) on trading account securitiesNet gain (loss) on trading account securities$936 $293 $1,108 $333 Net gain (loss) on trading account securities$893 $936 $1,844 $1,108 
Note 3 - Loans
Loans were as follows:
June 30,
2022
December 31,
2021
June 30,
2023
December 31,
2022
Commercial and industrialCommercial and industrial$5,539,277 $5,364,954 Commercial and industrial$5,726,804 $5,674,798 
Energy:Energy:Energy:
ProductionProduction762,625 878,436 Production718,829 696,570 
ServiceService121,356 105,901 Service138,816 133,542 
OtherOther103,944 93,455 Other128,926 95,617 
Total energyTotal energy987,925 1,077,792 Total energy986,571 925,729 
Paycheck Protection ProgramPaycheck Protection Program91,919 428,882 Paycheck Protection Program22,333 34,852 
Commercial real estate:Commercial real estate:Commercial real estate:
Commercial mortgagesCommercial mortgages6,041,606 5,867,062 Commercial mortgages6,389,649 6,168,910 
ConstructionConstruction1,535,808 1,304,271 Construction1,468,071 1,477,247 
LandLand478,674 405,277 Land535,247 537,168 
Total commercial real estateTotal commercial real estate8,056,088 7,576,610 Total commercial real estate8,392,967 8,183,325 
Consumer real estate:Consumer real estate:Consumer real estate:
Home equity lines of creditHome equity lines of credit730,557 691,841 
Home equity loansHome equity loans352,633 324,157 Home equity loans575,284 449,507 
Home equity lines of credit603,907 519,098 
Home improvement loansHome improvement loans680,811 577,377 
OtherOther604,495 567,535 Other171,264 124,814 
Total consumer real estateTotal consumer real estate1,561,035 1,410,790 Total consumer real estate2,157,916 1,843,539 
Total real estateTotal real estate9,617,123 8,987,400 Total real estate10,550,883 10,026,864 
Consumer and otherConsumer and other499,782 477,369 Consumer and other459,720 492,726 
Total loansTotal loans$16,736,026 $16,336,397 Total loans$17,746,311 $17,154,969 
Concentrations of Credit. Most of our lending activity occurs within the State of Texas, including the four largest metropolitan areas of Austin, Dallas/Ft. Worth, Houston and San Antonio, as well as other markets. The majority of our loan portfolio consists of commercial and industrial and commercial real estate loans. As of June 30, 2022,2023, there were no concentrations of loans related to any single industry in excess of 10% of total loans. TheAt that date, the largest industry concentration wasconcentrations were related to the automobile dealerships industry, which totaled 6.0% of total loans and the energy industry, which totaled 5.9%5.6% of total loans (also 5.9% excluding PPP loans). loans.Unfunded commitments to extend credit and standby letters of credit issued to customers in the automobile dealership industry totaled $454.9 million and $20.1 million, respectively, as of June 30, 2023, while unfunded commitments to extend credit and standby letters of credit issued to customers in the energy industry totaled $887.3 million$1.0 billion and $79.1$84.1 million, respectively, as of June 30, 2022.2023.
Foreign Loans. We have U.S. dollar denominated loans and commitments to borrowers in Mexico. The outstanding balance of these loans and the unfunded amounts available under these commitments were not significant at June 30, 20222023 or December 31, 2021.2022.
13

Table of Contents
Related Party Loans. In the ordinary course of business, we have granted loans to certain directors, executive officers and their affiliates (collectively referred to as “related parties”). Such loans totaled $342.5$389.2 million at June 30, 20222023 and $350.5$391.3 million at December 31, 2021.2022.
Accrued Interest Receivable. Accrued interest receivable on loans totaled $44.8$73.9 million and $40.0$68.7 million at June 30, 20222023 and December 31, 2021,2022, respectively, and is included in accrued interest receivable and other assets in the accompanyaccompanying consolidated balance sheets.
13

Table of Contents
Non-Accrual and Past Due Loans. Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Loans are placed on non-accrual status when, in management’s opinion, the borrower may be unable to meet payment obligations as they become due, as well as when required by regulatory provisions.
Non-accrual loans, segregated by class of loans, were as follows:
June 30, 2022December 31, 2021June 30, 2023December 31, 2022
Total Non-AccrualNon-Accrual with No Credit Loss AllowanceTotal Non-AccrualNon-Accrual with No Credit Loss AllowanceTotal Non-AccrualNon-Accrual with No Credit Loss AllowanceTotal Non-AccrualNon-Accrual with No Credit Loss Allowance
Commercial and industrialCommercial and industrial$11,170 $3,093 $22,582 $4,701 Commercial and industrial$22,217 $3,817 $18,130 $8,514 
EnergyEnergy11,114 6,442 14,433 8,533 Energy16,712 11,880 15,224 7,139 
Paycheck Protection Program— — — — 
Commercial real estate:Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other11,806 6,419 15,297 13,817 Buildings, land and other25,682 6,617 3,552 1,991 
ConstructionConstruction— — 948 — Construction— — — — 
Consumer real estateConsumer real estate1,035 732 440 138 Consumer real estate3,170 3,170 927 927 
Consumer and otherConsumer and other— — 13 13 Consumer and other— — — — 
TotalTotal$35,125 $16,686 $53,713 $27,202 Total$67,781 $25,484 $37,833 $18,571 
The following table presents non-accrual loans as of June 30, 20222023 by class and year of origination.
20222021202020192018PriorRevolving LoansRevolving Loans Converted to TermTotal20232022202120202019PriorRevolving LoansRevolving Loans Converted to TermTotal
Commercial and industrialCommercial and industrial$— $98 $3,520 $3,507 $1,491 $653 $108 $1,793 $11,170 Commercial and industrial$— $— $221 $754 $2,957 $1,172 $16,746 $367 $22,217 
EnergyEnergy5,779 — — — 21 — 5,127 187 11,114 Energy10,324 — — 59 1,349 4,832 146 16,712 
Paycheck Protection Program— — — — — — — — — 
Commercial real estate:Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other1,116 7,556 — 229 313 2,592 — — 11,806 Buildings, land and other1,924 296 18,328 1,483 3,643 — — 25,682 
ConstructionConstruction— — — — — — — — — Construction— — — — — — — — — 
Consumer real estateConsumer real estate— — — — — 380 — 655 1,035 Consumer real estate— — — 39 2,470 95 — 566 3,170 
Consumer and otherConsumer and other— — — — — — — — — Consumer and other— — — — — — — — — 
TotalTotal$6,895 $7,654 $3,520 $3,736 $1,825 $3,625 $5,235 $2,635 $35,125 Total$12,248 $$517 $19,180 $8,259 $4,912 $21,578 $1,079 $67,781 
In the table above, energy and commercial real estate loans reported as 2023 originations as of June 30, 2023 were first originated in years prior to 2023 but were renewed in the current year. Had non-accrual loans performed in accordance with their original contract terms, we would have recognized additional interest income, net of tax, of approximately $835 thousand and $1.4 million for the three and six months ended June 30, 2023, respectively, and approximately $436 thousand and $843 thousand for the three and six months ended June 30, 2022, respectively, and approximately $427 thousand and $881 thousand for the three and six months ended June 30, 2021, respectively.
14

Table of Contents
An age analysis of past due loans (including both accruing and non-accruing loans), segregated by class of loans, as of June 30, 20222023 was as follows:
Loans
30-89 Days
Past Due
Loans
90 or More
Days
Past Due
Total
Past Due
Loans
Current
Loans
Total
Loans
Accruing
Loans 90 or
More Days
Past Due
Commercial and industrial$14,529 $3,993 $18,522 $5,520,755 $5,539,277 $3,280 
Energy200 3,275 3,475 984,450 987,925 — 
Paycheck Protection Program5,919 5,063 10,982 80,937 91,919 5,063 
Commercial real estate:
Buildings, land and other17,852 7,441 25,293 6,494,987 6,520,280 781 
Construction832 — 832 1,534,976 1,535,808 — 
Consumer real estate6,921 1,268 8,189 1,552,846 1,561,035 903 
Consumer and other4,443 598 5,041 494,741 499,782 598 
Total$50,696 $21,638 $72,334 $16,663,692 $16,736,026 $10,625 
14

Table of Contents
Loans
30-89 Days
Past Due
Loans
90 or More
Days
Past Due
Total
Past Due
Loans
Current
Loans
Total
Loans
Accruing
Loans 90 or
More Days
Past Due
Commercial and industrial$29,280 $5,224 $34,504 $5,692,300 $5,726,804 $3,025 
Energy2,224 6,386 8,610 977,961 986,571 — 
Paycheck Protection Program80 2,725 2,805 19,528 22,333 2,725 
Commercial real estate:
Buildings, land and other28,554 20,022 48,576 6,876,320 6,924,896 568 
Construction669 118 787 1,467,284 1,468,071 118 
Consumer real estate8,843 8,114 16,957 2,140,959 2,157,916 5,039 
Consumer and other5,153 336 5,489 454,231 459,720 336 
Total$74,803 $42,925 $117,728 $17,628,583 $17,746,311 $11,811 
Troubled Debt RestructuringsModifications to Borrowers Experiencing Financial Difficulty. . Troubled debt restructuringsFrom time to time, we may modify certain loans to borrowers who are experiencing financial difficulty. In some cases, these modifications may result in new loans. Loan modifications to borrowers experiencing financial difficulty may be in the form of a principal forgiveness, an interest rate reduction, an other-than-insignificant payment delay, or a term extension or a combination thereof, among other things. The period-end balance of loan modifications, segregated by type of modification, to borrowers experiencing financial difficulty during the six months ended June 30, 20222023 and 2021June 30, 2022 are set forth in the following table.table below, regardless of whether such modifications resulted in a new loan. There were no commitments to lend additional funds to these borrowers at June 30, 2023.
Six Months Ended
June 30, 2022
Six Months Ended
June 30, 2021
Payment
Delay
Percent of
Total Class
of Loans
Combination: Payment Delay and Term ExtensionPercent of
Total Class
of Loans
June 30, 2023June 30, 2023
Commercial and industrialCommercial and industrial$— — %$16,020 0.3 %
Balance at
Restructure
Balance at
Period-End
Balance at
Restructure
Balance at
Period-End
Energy$— $— $3,817 $3,817 
Commercial real estate:Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other1,155 1,116 582 579 Buildings, land and other— — 20,466 0.3 
$1,155 $1,116 $4,399 $4,396 $— — $36,486 0.2 
June 30, 2022June 30, 2022
Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other$1,116 — — — 
$1,116 — $— — 
LoanThe financial effects of the loan modifications are typically relatedmade to extending amortization periods, converting loans to interest only for a limited period of time, deferral of interest payments, waiver of certain covenants, consolidating notes and/or reducing collateral or interest rates. The modificationsborrowers experiencing financial difficulty were not significant during the six months ended June 30, 2023. The loan modifications reported periodsin the table above did not significantly impact our determination of the allowance for credit losses on loans.loans during the six months ended June 30, 2023.
15

Table of Contents
Information as of or for the six months ended June 30, 20222023 and 2021June 30, 2022 related to loans restructured duringmodified (by type of modification) in the preceding twelve months, respectively, whereby the borrower was experiencing financial difficulty at the time of modification is set forth in the following table.
June 30, 2022June 30, 2021
Restructured loans past due in excess of 90 days at period-end:
Number of loans— 
Dollar amount of loans$— $1,322 
Restructured loans on non-accrual status at period end1,116 4,090 
Charge-offs of restructured loans:
Recognized in connection with restructuring— — 
Recognized on previously restructured loans723 — 
Proceeds from sale of restructured loans1,070 — 
June 30, 2023June 30, 2022
Term
Extension
Payment
Delay
Combination: Payment Delay and Term ExtensionTerm
Extension
Payment
Delay
Combination: Payment Delay and Term Extension
Past due in excess of 90 days or on non-accrual status at period-end:
Commercial and industrial$— $— $16,020 $— $— $— 
Commercial real estate:
Buildings, land and other— — 20,466 — 1,116 — 
$— $— $36,486 $— $1,116 $— 
Charge-offs during the period:
Commercial real estate:
Buildings, land and other$— $— $— $— $371 $352 
Proceeds from sales:
Commercial real estate:
Buildings, land and other$— $— $— $— $— $1,070 
Credit Quality Indicators. As part of the on-going monitoring of the credit quality of our loan portfolio, management tracks certain credit quality indicators including trends related to (i) the weighted-average risk grade of commercial loans, (ii) the level of classified commercial loans, (iii) the delinquency status of consumer loans, (iv) non-performing loans (see details above) and (v) the general economic conditions in the State of Texas.
We utilize a risk grading matrix to assign a risk grade to each of our commercial loans. Loans are graded on a scale of 1 to 14. A description of the general characteristics of the 14 risk grades is set forth in our 20212022 Form 10-K. We monitor portfolio credit quality by the weighted-average risk grade of each class of commercial loan. Individual relationship managers, under the oversight of credit administration, review updated financial information for all pass grade loans to reassess the risk grade on at least an annual basis. When a loan has a risk grade of 9, it is still considered a pass grade loan; however, it is considered to be on management’s “watch list,” where a significant risk-modifying action is anticipated in the near term. When a loan has a risk grade of 10 or higher, a special assets officer monitors the loan on an on-going basis.

15

Table of Contents
The following tables presenttable presents weighted-average risk grades for all commercial loans, by class and year of origination/renewal, as of June 30, 2022.2023. Paycheck Protection Program (“PPP”) loans are excluded as such loans are fully guaranteed by the Small Business Administration (“SBA”).
20222021202020192018PriorRevolving LoansRevolving Loans Converted to TermTotalW/A Risk Grade20232022202120202019PriorRevolving LoansRevolving Loans Converted to TermTotalW/A Risk Grade
Commercial and industrialCommercial and industrialCommercial and industrial
Risk grades 1-8Risk grades 1-8$1,009,520 $805,675 $563,122 $267,129 $142,114 $221,192 $2,213,761 $54,235 $5,276,748 6.23 Risk grades 1-8$1,113,216 $919,731 $524,735 $406,763 $186,103 $243,703 $2,026,310 $48,004 $5,468,565 6.29 
Risk grade 9Risk grade 912,633 21,474 6,914 9,067 20,961 8,682 79,546 5,662 164,939 9.00 Risk grade 917,610 17,339 32,116 3,745 2,307 10,869 40,715 5,203 129,904 9.00 
Risk grade 10Risk grade 105,000 23,293 2,437 705 1,808 255 20,879 2,093 56,470 10.00 Risk grade 109,988 510 622 396 4,165 744 19,268 564 36,257 10.00 
Risk grade 11Risk grade 11— 1,651 6,280 9,490 1,556 2,027 4,100 4,846 29,950 11.00 Risk grade 114,491 4,164 4,001 8,747 16,121 1,523 19,749 11,065 69,861 11.00 
Risk grade 12Risk grade 12— 98 2,569 3,106 1,427 251 108 747 8,306 12.00 Risk grade 12— — 221 702 2,687 1,172 14,607 367 19,756 12.00 
Risk grade 13Risk grade 13— — 951 401 64 402 — 1,046 2,864 13.00 Risk grade 13— — — 52 270 — 2,139 — 2,461 13.00 
$1,027,153 $852,191 $582,273 $289,898 $167,930 $232,809 $2,318,394 $68,629 $5,539,277 6.38 $1,145,305 $941,744 $561,695 $420,405 $211,653 $258,011 $2,122,788 $65,203 $5,726,804 6.46 
W/A risk gradeW/A risk grade6.28 7.03 6.10 6.75 7.01 5.79 6.20 7.52 6.38 W/A risk grade6.31 6.76 7.10 5.93 6.57 6.17 6.31 7.66 6.46 
Energy
Risk grades 1-8$312,271 $111,163 $6,939 $6,332 $3,564 $5,239 $446,460 $49,185 $941,153 5.57 
Risk grade 91,660 95 268 1,192 26 — 10,955 39 14,235 9.00 
Risk grade 10— — 73 515 239 — — 58 885 10.00 
Risk grade 119,097 221 541 4,630 885 164 5,000 — 20,538 11.00 
Risk grade 123,463 — — — 21 — 2,771 187 6,442 12.00 
Risk grade 132,316 — — — — — 2,356 — 4,672 13.00 
$328,807 $111,479 $7,821 $12,669 $4,735 $5,403 $467,542 $49,469 $987,925 5.82 
W/A risk grade6.09 5.66 7.69 8.63 8.30 7.17 5.46 6.25 5.82 
Commercial real estate:
Buildings, land, other
Risk grades 1-8$1,101,851 $1,495,414 $999,836 $788,421 $428,539 $963,918 $84,964 $106,450 $5,969,393 6.90 
Risk grade 964,026 27,271 99,934 47,898 20,773 35,908 7,412 2,848 306,070 9.00 
Risk grade 105,851 17,824 17,104 52,210 20,353 53,622 3,500 — 170,464 10.00 
Risk grade 11162 434 1,269 7,189 8,969 44,318 206 — 62,547 11.00 
Risk grade 12646 6,545 — 229 313 2,592 — — 10,325 12.00 
Risk grade 13470 1,011 — — — — — — 1,481 13.00 
$1,173,006 $1,548,499 $1,118,143 $895,947 $478,947 $1,100,358 $96,082 $109,298 $6,520,280 7.12 
W/A risk grade7.01 7.23 7.16 7.25 7.28 6.95 7.24 6.44 7.12 
Construction
Risk grades 1-8$276,072 $662,364 $179,896 $100,915 $631 $1,804 $253,781 $4,247 $1,479,710 6.86 
Risk grade 911,295 637 2,670 — — 401 — — 15,003 9.00 
Risk grade 1027,992 — — 13,103 — — — — 41,095 10.00 
Risk grade 11— — — — — — — — — 11.00 
Risk grade 12— — — — — — — — — 12.00 
Risk grade 13— — — — — — — — — 13.00 
$315,359 $663,001 $182,566 $114,018 $631 $2,205 $253,781 $4,247 $1,535,808 6.96 
W/A risk grade7.10 7.12 6.64 8.21 6.21 7.16 6.10 5.01 6.96 
Total commercial real estate$1,488,365 $2,211,500 $1,300,709 $1,009,965 $479,578 $1,102,563 $349,863 $113,545 $8,056,088 7.09 
W/A risk grade7.03 7.19 7.09 7.36 7.28 6.95 6.41 6.39 7.09 
16

Table of Contents
20232022202120202019PriorRevolving LoansRevolving Loans Converted to TermTotalW/A Risk Grade
Energy
Risk grades 1-8$301,108 $65,831 $83,174 $4,240 $2,393 $5,297 $457,225 $33,858 $953,126 5.79 
Risk grade 9311 4,456 139 — 445 589 3,603 1,972 11,515 9.00 
Risk grade 10— — — — 355 189 — — 544 10.00 
Risk grade 11— — 106 170 3,101 12 1,285 — 4,674 11.00 
Risk grade 1210,324 — — 59 1,349 2,132 146 14,012 12.00 
Risk grade 13— — — — — — 2,700 — 2,700 13.00 
$311,743 $70,287 $83,419 $4,469 $7,643 $6,089 $466,945 $35,976 $986,571 5.96 
W/A risk grade6.32 6.60 5.78 7.68 9.83 7.14 5.58 5.69 5.96 
Commercial real estate:
Buildings, land, other
Risk grades 1-8$699,039 $1,735,438 $1,421,130 $851,503 $570,561 $1,009,089 $150,060 $103,188 $6,540,008 6.97 
Risk grade 99,069 15,323 10,729 40,843 70,271 27,324 1,980 1,214 176,753 9.00 
Risk grade 10491 29,583 7,991 4,086 1,754 3,796 — 2,646 50,347 10.00 
Risk grade 117,653 6,163 48,496 8,477 — 57,948 2,993 376 132,106 11.00 
Risk grade 121,924 296 17,178 1,483 3,493 — — 24,382 12.00 
Risk grade 13— — — 1,150 — 150 — — 1,300 13.00 
$718,176 $1,786,515 $1,488,642 $923,237 $644,069 $1,101,800 $155,033 $107,424 $6,924,896 7.14 
W/A risk grade7.10 7.05 7.28 7.22 7.02 7.17 7.13 6.50 7.14 
Construction
Risk grades 1-8$271,025 $523,461 $342,339 $49,547 $945 $1,666 $179,127 $— $1,368,110 7.19 
Risk grade 99,975 14,668 3,067 2,100 — — 3,291 — 33,101 9.00 
Risk grade 1018,297 — 7,347 — — — 9,126 — 34,770 10.00 
Risk grade 11— 31,972 118 — — — — — 32,090 11.00 
Risk grade 12— — — — — — — — — 12.00 
Risk grade 13— — — — — — — — — 13.00 
$299,297 $570,101 $352,871 $51,647 $945 $1,666 $191,544 $— $1,468,071 7.38 
W/A risk grade7.68 7.39 7.39 4.63 7.07 6.77 7.65 — 7.38 
Total commercial real estate$1,017,473 $2,356,616 $1,841,513 $974,884 $645,014 $1,103,466 $346,577 $107,424 $8,392,967 7.18 
W/A risk grade7.27 7.13 7.30 7.09 7.02 7.17 7.41 6.50 7.18 
In the table above, certain energy and commercial real estate loans are reported as 20222023 originations and have risk grades of 11 or higher. These loans were, for the most part, first originated in various years prior to 20222023 but were renewed in the current year.
16

Table of Contents
The following tables present weighted average risk grades for all commercial loans by class as of December 31, 2021.2022. Refer to our 20212022 Form 10-K for details of these loans by year of origination/renewal.
Commercial and IndustrialEnergyCommercial Real Estate - Buildings, Land and OtherCommercial Real Estate - ConstructionTotal Commercial Real EstateCommercial and IndustrialEnergyCommercial Real Estate - Buildings, Land and OtherCommercial Real Estate - ConstructionTotal Commercial Real Estate
W/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoans
Risk grades 1-8Risk grades 1-86.01 $5,063,847 5.78 $1,008,370 6.91 $5,574,922 6.99 $1,262,200 6.92 $6,837,122 Risk grades 1-86.24 $5,435,917 5.44 $887,182 6.94 $6,340,028 7.04 $1,430,012 6.96 $7,770,040 
Risk grade 9Risk grade 99.00 187,870 9.00 36,622 9.00 321,533 9.00 41,123 9.00 362,656 Risk grade 99.00 146,192 9.00 11,112 9.00 189,928 9.00 34,952 9.00 224,880 
Risk grade 10Risk grade 1010.00 59,137 10.00 1,773 10.00 269,447 10.00 — 10.00 269,447 Risk grade 1010.00 37,596 10.00 642 10.00 91,020 10.00 931 10.00 91,951 
Risk grade 11Risk grade 1111.00 31,518 11.00 16,594 11.00 91,140 11.00 — 11.00 91,140 Risk grade 1111.00 36,963 11.00 11,569 11.00 81,550 11.00 11,352 11.00 92,902 
Risk grade 12Risk grade 1212.00 12,535 12.00 8,953 12.00 15,097 12.00 748 12.00 15,845 Risk grade 1212.00 12,521 12.00 10,840 12.00 2,957 12.00 — 12.00 2,957 
Risk grade 13Risk grade 1313.00 10,047 13.00 5,480 13.00 200 13.00 200 13.00 400 Risk grade 1313.00 5,609 13.00 4,384 13.00 595 13.00 — 13.00 595 
TotalTotal6.22 $5,364,954 6.06 $1,077,792 7.22 $6,272,339 7.06 $1,304,271 7.19 $7,576,610 Total6.39 $5,674,798 5.67 $925,729 7.09 $6,706,078 7.12 $1,477,247 7.10 $8,183,325 
17

Table of Contents
Information about the payment status of consumer loans, segregated by portfolio segment and year of origination, as of June 30, 20222023 was as follows:
20222021202020192018PriorRevolving LoansRevolving Loans Converted to TermTotal20232022202120202019PriorRevolving LoansRevolving Loans Converted to TermTotal
Consumer real estate:Consumer real estate:Consumer real estate:
Past due 30-89 daysPast due 30-89 days$140 $287 $387 $668 $401 $2,771 $602 $1,665 $6,921 Past due 30-89 days$297 $1,126 $1,075 $236 $480 $1,534 $3,861 $234 $8,843 
Past due 90 or more daysPast due 90 or more days— — — 142 875 247 — 1,268 Past due 90 or more days— 95 172 63 2,539 1,081 523 3,641 8,114 
Total past dueTotal past due140 287 387 672 543 3,646 849 1,665 8,189 Total past due297 1,221 1,247 299 3,019 2,615 4,384 3,875 16,957 
Current loansCurrent loans154,178 324,089 211,133 80,351 43,828 137,836 592,539 8,892 1,552,846 Current loans284,398 438,609 300,363 182,845 62,030 150,136 713,920 8,658 2,140,959 
TotalTotal$154,318 $324,376 $211,520 $81,023 $44,371 $141,482 $593,388 $10,557 $1,561,035 Total$284,695 $439,830 $301,610 $183,144 $65,049 $152,751 $718,304 $12,533 $2,157,916 
Consumer and other:Consumer and other:Consumer and other:
Past due 30-89 daysPast due 30-89 days$1,974 $69 $64 $44 $$45 $32 $2,210 $4,443 Past due 30-89 days$2,202 $316 $158 $12 $42 $49 $2,226 $148 $5,153 
Past due 90 or more daysPast due 90 or more days439 — — 19 11 — — 129 598 Past due 90 or more days84 34 — — — 212 336 
Total past dueTotal past due2,413 69 64 63 16 45 32 2,339 5,041 Total past due2,286 350 159 12 42 49 2,438 153 5,489 
Current loansCurrent loans31,230 30,712 10,798 4,166 1,814 2,042 391,713 22,266 494,741 Current loans49,542 39,133 13,771 4,820 1,985 1,900 320,720 22,360 454,231 
TotalTotal$33,643 $30,781 $10,862 $4,229 $1,830 $2,087 $391,745 $24,605 $499,782 Total$51,828 $39,483 $13,930 $4,832 $2,027 $1,949 $323,158 $22,513 $459,720 
Revolving loans that converted to term during the three and six months ended June 30, 20222023 and 20212022 were as follows:
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended June 30,Six Months Ended June 30,
20222021202220212023202220232022
Commercial and industrialCommercial and industrial$16,518 $22,111 $21,973 $31,561 Commercial and industrial$3,835 $16,518 $14,606 $21,973 
EnergyEnergy247 294 247 6,177 Energy— 247 2,567 247 
Commercial real estate:Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other10,681 8,195 10,726 31,321 Buildings, land and other5,944 10,681 5,944 10,726 
ConstructionConstruction13 — 4,248 — Construction— 13 — 4,248 
Consumer real estateConsumer real estate888 205 1,684 977 Consumer real estate1,064 888 1,743 1,684 
Consumer and otherConsumer and other1,792 1,961 5,868 5,696 Consumer and other1,669 1,792 3,671 5,868 
TotalTotal$30,139 $32,766 $44,746 $75,732 Total$12,512 $30,139 $28,531 $44,746 
In assessing the general economic conditions in the State of Texas, management monitors and tracks the Texas Leading Index (“TLI”), which is produced by the Federal Reserve Bank of Dallas. The TLI, the components of which are more fully described in our 20212022 Form 10-K, totaled 138.4127.7 at June 30, 20222023 and 135.9130.3 at December 31, 2021.2022. A higherlower TLI value implies moreless favorable economic conditions.

17

Table of Contents
Allowance For Credit Losses - Loans. The allowance for credit losses on loans is a contra-asset valuation account, calculated in accordance with ASC 326, that is deducted from the amortized cost basis of loans to present the net amount expected to be collected. The amount of the allowance represents management's best estimate of current expected credit losses on loans considering available information, from internal and external sources, relevant to assessing collectibility over the loans' contractual terms, adjusted for expected prepayments when appropriate. Credit loss expense related to loans reflects the totality of actions taken on all loans for a particular period including any necessary increases or decreases in the allowance related to changes in credit loss expectations associated with specific loans or pools of loans. Portions of the allowance may be allocated for specific credits; however, the entire allowance is available for any credit that, in management’s judgment, should be charged off. While management utilizes its best judgment and information available, the ultimate appropriateness of the allowance is dependent upon a variety of factors beyond our control, including the performance of our loan portfolio, the economy, changes in interest rates and the view of the regulatory authorities toward loan classifications. Our allowance methodology is more fully described in our 20212022 Form 10-K.
During the first quarter of 2023, we recalibrated and updated all of our commercial loan models, with the exception of the models related to commercial real estate - non-owner occupied loans, as well as our consumer real estate loan models. While the fundamental modeling methodologies remain unchanged, the updates included (i) separating the energy loan pool from the commercial and industrial pool as a result of differences in loss characteristics observed in recent history and (ii) changing the modeling approach related to loan renewals whereby each renewal is treated as a separate loan which impacted loan life assumptions. For modeling purposes, our loan pools now include (i) commercial and industrial non-revolving, (ii) commercial and industrial revolving, (iii) energy, (iv) commercial real estate - owner occupied, (v) commercial real estate - non-owner occupied, (vi) commercial real estate - construction/land development, (vii) consumer real estate and (viii) consumer and other. The overall approximate impact of the model updates during the first quarter was a $45.0 million decrease in modeled expected
18

Table of Contents
credit losses on loans though the impact of this decrease was largely offset with qualitative adjustments. The decrease in modeled expected credit losses on loans was largely driven by lower measurements for probability of default (“PD”) and loss given default (“LGD”) based on the historical data series (2008 through 2018) used for the recalibration. This period was one of relatively low losses and included higher levels of government stimulus. The lower PD and LGD measurements were also impacted by shorter loan life assumptions due to the aforementioned change in the modeling approach related to loan renewals.
The following table presents details of the allowance for credit losses on loans segregated by loan portfolio segment as of June 30, 20222023 and December 31, 2021.2022. No allowance for credit losses has been recognized for PPP loans as such loans are fully guaranteed by the SBA.
June 30, 2022Commercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
Total
June 30, 2023June 30, 2023Commercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
Total
Modeled expected credit lossesModeled expected credit losses$48,776 $6,106 $20,093 $6,639 $9,609 $91,223 Modeled expected credit losses$46,435 $5,733 $15,496 $12,594 $5,511 $85,769 
Q-Factor and other qualitative adjustmentsQ-Factor and other qualitative adjustments35,134 3,989 95,532 133 2,526 137,314 Q-Factor and other qualitative adjustments26,270 6,496 104,130 441 4,052 141,389 
Specific allocationsSpecific allocations3,360 6,172 1,481 82 — 11,095 Specific allocations2,461 2,700 1,300 — — 6,461 
TotalTotal$87,270 $16,267 $117,106 $6,854 $12,135 $239,632 Total$75,166 $14,929 $120,926 $13,035 $9,563 $233,619 
December 31, 2021
December 31, 2022December 31, 2022
Modeled expected credit lossesModeled expected credit losses$46,946 $6,363 $16,676 $6,484 $6,397 $82,866 Modeled expected credit losses$61,918 $8,531 $27,013 $7,847 $4,983 $110,292 
Q-Factor and other qualitative adjustmentsQ-Factor and other qualitative adjustments14,609 5,374 127,860 65 1,440 149,348 Q-Factor and other qualitative adjustments36,237 5,148 61,572 157 2,034 105,148 
Specific allocationsSpecific allocations10,536 5,480 400 36 — 16,452 Specific allocations6,082 4,383 1,716 — — 12,181 
TotalTotal$72,091 $17,217 $144,936 $6,585 $7,837 $248,666 Total$104,237 $18,062 $90,301 $8,004 $7,017 $227,621 
The following table details activity in the allowance for credit losses on loans by portfolio segment for the three and six months ended June 30, 20222023 and 2021.2022. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. No allowance for credit losses has been recognized for PPP loans as such loans are fully guaranteed by the SBA.
Commercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
TotalCommercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
Total
Three months ended:Three months ended:Three months ended:
June 30, 2023June 30, 2023
Beginning balanceBeginning balance$78,465 $19,191 $115,693 $9,708 $8,457 $231,514 
Credit loss expense (benefit)Credit loss expense (benefit)2,404 (4,433)5,133 3,822 5,007 11,933 
Charge-offsCharge-offs(7,136)(518)— (1,080)(7,016)(15,750)
RecoveriesRecoveries1,433 689 100 585 3,115 5,922 
Net (charge-offs) recoveriesNet (charge-offs) recoveries(5,703)171 100 (495)(3,901)(9,828)
Ending balanceEnding balance$75,166 $14,929 $120,926 $13,035 $9,563 $233,619 
June 30, 2022June 30, 2022June 30, 2022
Beginning balanceBeginning balance$87,026 $15,422 $128,954 $6,359 $9,074 $246,835 Beginning balance$87,026 $15,422 $128,954 $6,359 $9,074 $246,835 
Credit loss expense (benefit)Credit loss expense (benefit)942 427 (12,232)583 5,884 (4,396)Credit loss expense (benefit)942 427 (12,232)583 5,884 (4,396)
Charge-offsCharge-offs(1,891)— — (131)(5,322)(7,344)Charge-offs(1,891)— — (131)(5,322)(7,344)
RecoveriesRecoveries1,193 418 384 43 2,499 4,537 Recoveries1,193 418 384 43 2,499 4,537 
Net charge-offs(698)418 384 (88)(2,823)(2,807)
Ending balance$87,270 $16,267 $117,106 $6,854 $12,135 $239,632 
June 30, 2021
Beginning balance$70,892 $33,472 $144,440 $5,636 $6,818 $261,258 
Credit loss expense (benefit)(5,901)(5,527)3,654 611 2,784 (4,379)
Charge-offs(685)— (137)(388)(3,882)(5,092)
Recoveries965 65 36 295 2,140 3,501 
Net charge-offs280 65 (101)(93)(1,742)(1,591)
Net (charge-offs) recoveriesNet (charge-offs) recoveries(698)418 384 (88)(2,823)(2,807)
Ending balanceEnding balance$65,271 $28,010 $147,993 $6,154 $7,860 $255,288 Ending balance$87,270 $16,267 $117,106 $6,854 $12,135 $239,632 
1819

Table of Contents
Commercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
TotalCommercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
Total
Six months ended:Six months ended:Six months ended:
June 30, 2023June 30, 2023
Beginning balanceBeginning balance$104,237 $18,062 $90,301 $8,004 $7,017 $227,621 
Credit loss expense (benefit)Credit loss expense (benefit)(18,280)(3,467)30,494 5,105 10,756 24,608 
Charge-offsCharge-offs(13,316)(518)— (1,330)(13,958)(29,122)
RecoveriesRecoveries2,525 852 131 1,256 5,748 10,512 
Net (charge-offs) recoveriesNet (charge-offs) recoveries(10,791)334 131 (74)(8,210)(18,610)
Ending balanceEnding balance$75,166 $14,929 $120,926 $13,035 $9,563 $233,619 
June 30, 2022June 30, 2022June 30, 2022
Beginning balanceBeginning balance$72,091 $17,217 $144,936 $6,585 $7,837 $248,666 Beginning balance$72,091 $17,217 $144,936 $6,585 $7,837 $248,666 
Credit loss expense (benefit)Credit loss expense (benefit)18,503 (1,617)(27,841)557 10,466 68 Credit loss expense (benefit)18,503 (1,617)(27,841)557 10,466 68 
Charge-offsCharge-offs(5,346)(371)(702)(362)(11,093)(17,874)Charge-offs(5,346)(371)(702)(362)(11,093)(17,874)
RecoveriesRecoveries2,022 1,038 713 74 4,925 8,772 Recoveries2,022 1,038 713 74 4,925 8,772 
Net (charge-offs) recoveriesNet (charge-offs) recoveries(3,324)667 11 (288)(6,168)(9,102)Net (charge-offs) recoveries(3,324)667 11 (288)(6,168)(9,102)
Ending balanceEnding balance$87,270 $16,267 $117,106 $6,854 $12,135 $239,632 Ending balance$87,270 $16,267 $117,106 $6,854 $12,135 $239,632 
June 30, 2021
Beginning balance$73,843 $39,553 $134,892 $7,926 $6,963 $263,177 
Credit loss expense (benefit)(7,866)(11,328)12,576 (2,111)4,350 (4,379)
Charge-offs(2,874)(1,433)(137)(672)(7,942)(13,058)
Recoveries2,168 1,218 662 1,011 4,489 9,548 
Net (charge-offs) recoveries(706)(215)525 339 (3,453)(3,510)
Ending balance$65,271 $28,010 $147,993 $6,154 $7,860 $255,288 
The following table presents year-to-date gross charge-offs by year of origination as of June 30, 2023.
20232022202120202019PriorRevolving LoansRevolving Loans Converted to TermTotal
Commercial and industrial$124 $208 $178 $55 $25 $29 $7,427 $5,270 $13,316 
Energy— — — — — — — 518 518 
Commercial real estate:
Buildings, land and other— — — — — — — — — 
Construction— — — — — — — — — 
Consumer real estate— — 280 — — 89 961 — 1,330 
Consumer and other8,143 4,354 57 12 — 23 1,051 318 13,958 
Total$8,267 $4,562 $515 $67 $25 $141 $9,439 $6,106 $29,122 
In the table above, $8.1 million of the consumer and other loan charge-offs reported as 2023 originations and $4.2 million of the total reported as 2022 originations were related to deposit overdrafts.
The following table presents loans that were evaluated for expected credit losses on an individual basis and the related specific allocations, by loan portfolio segment, as of June 30, 20222023 and December 31, 2021.2022.
June 30, 2022December 31, 2021June 30, 2023December 31, 2022
Loan
Balance
Specific AllocationsLoan
Balance
Specific AllocationsLoan
Balance
Specific AllocationsLoan
Balance
Specific Allocations
Commercial and industrialCommercial and industrial$12,539 $3,360 $24,523 $10,536 Commercial and industrial$20,862 $2,461 $18,980 $6,082 
EnergyEnergy15,906 6,172 16,393 5,480 Energy16,445 2,700 15,058 4,383 
Paycheck Protection ProgramPaycheck Protection Program— — — — Paycheck Protection Program— — — — 
Commercial real estate:Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other21,205 1,481 24,670 200 Buildings, land and other24,954 1,300 17,711 1,716 
ConstructionConstruction— — 948 200 Construction— — — — 
Consumer real estateConsumer real estate934 82 303 36 Consumer real estate3,030 — 827 — 
Consumer and otherConsumer and other— — — — Consumer and other— — — — 
TotalTotal$50,584 $11,095 $66,837 $16,452 Total$65,291 $6,461 $52,576 $12,181 

20

Table of Contents
Note 4 - Goodwill and Other Intangible Assets
Goodwill and other intangible assets are presented in the table below.
June 30,
2022
December 31,
2021
June 30,
2023
December 31,
2022
GoodwillGoodwill$654,952 $654,952 Goodwill$654,952 $654,952 
Other intangible assets:Other intangible assets:Other intangible assets:
Core depositsCore deposits$479 $718 Core deposits$155 $310 
Customer relationshipsCustomer relationships110 148 Customer relationships53 76 
$589 $866 $208 $386 
The estimated aggregate future amortization expense for intangible assets remaining as of June 30, 20222023 is as follows:
Remainder of 2022$204 
2023282 
Remainder of 2023Remainder of 2023$105 
2024202487 202487 
2025202511 202511 
202620262026
$589 
$208 
19

Table of Contents
Note 5 - Deposits
Deposits were as follows:
June 30,
2022
December 31,
2021
June 30,
2023
December 31,
2022
Non-interest-bearing demand depositsNon-interest-bearing demand deposits$18,783,931 $18,423,018 Non-interest-bearing demand deposits$14,904,614 $17,598,234 
Interest-bearing deposits:Interest-bearing deposits:Interest-bearing deposits:
Savings and interest checkingSavings and interest checking12,309,066 11,930,959 Savings and interest checking10,540,458 12,333,675 
Money market accountsMoney market accounts12,989,902 11,228,815 Money market accounts11,026,368 12,227,247 
Time accountsTime accounts1,518,866 1,112,904 Time accounts4,229,390 1,795,040 
Total interest-bearing depositsTotal interest-bearing deposits26,817,834 24,272,678 Total interest-bearing deposits25,796,216 26,355,962 
Total depositsTotal deposits$45,601,765 $42,695,696 Total deposits$40,700,830 $43,954,196 
The following table below presents additional information about our deposits:deposits. Public funds in excess of deposit insurance limits are included in the totals for deposits not covered by insurance; however, such deposits are generally fully collateralized by securities.
June 30,
2022
December 31,
2021
June 30,
2023
December 31,
2022
Deposits from foreign sources (primarily Mexico)Deposits from foreign sources (primarily Mexico)$1,090,169 $993,479 Deposits from foreign sources (primarily Mexico)$1,036,777 $1,048,943 
Non-interest-bearing public funds depositsNon-interest-bearing public funds deposits681,205 1,235,026 Non-interest-bearing public funds deposits447,194 788,040 
Interest-bearing public funds depositsInterest-bearing public funds deposits837,427 810,863 Interest-bearing public funds deposits696,521 758,761 
Total deposits not covered by deposit insuranceTotal deposits not covered by deposit insurance25,810,407 24,125,359 Total deposits not covered by deposit insurance20,630,167 23,839,797 
Time deposits not covered by deposit insuranceTime deposits not covered by deposit insurance364,486 238,608 Time deposits not covered by deposit insurance1,670,388 430,128 

Note 6 - Off-Balance-Sheet Arrangements, Commitments, Guarantees and Contingencies
Financial Instruments with Off-Balance-Sheet Risk. In the normal course of business, we enter into various transactions, which, in accordance with generally accepted accounting principles are not included in our consolidated balance sheets. We enter into these transactions to meet the financing needs of our customers. As more fully discussed in our 20212022 Form 10-K, these transactions include commitments to extend credit and standby letters of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. We minimize our exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures.
21

Table of Contents
Financial instruments with off-balance-sheet risk were as follows:
June 30,
2022
December 31,
2021
June 30,
2023
December 31,
2022
Commitments to extend creditCommitments to extend credit$10,771,940 $10,420,142 Commitments to extend credit$12,208,032 $12,137,957 
Standby letters of creditStandby letters of credit327,847 238,690 Standby letters of credit405,900 383,851 
Deferred standby letter of credit feesDeferred standby letter of credit fees1,890 2,072 Deferred standby letter of credit fees2,176 2,236 
Allowance For Credit Losses - Off-Balance-Sheet Credit Exposures. The allowance for credit losses on off-balance-sheet credit exposures is a liability account, calculated in accordance with ASC 326, representing expected credit losses over the contractual period for which we are exposed to credit risk resulting from a contractual obligation to extend credit. No allowance is recognized if we have the unconditional right to cancel the obligation. Off-balance-sheet credit exposures primarily consist of amounts available under outstanding lines of credit and letters of credit detailed in the table above. The amount of the allowance represents management's best estimate of expected credit losses on commitments expected to be funded over the contractual life of the commitment. Our allowance methodology is more fully described in our 20212022 Form 10-K. This methodology was also impacted by the model updates during the first quarter of 2023 as described in Note 3 - Loans. The overall approximate impact of the model updates was a $19.0 million decrease in modeled expected credit losses for off-balance-sheet credit exposures, though the impact of this decrease was largely offset with qualitative adjustments.
The following table details activity in the allowance for credit losses on off-balance-sheet credit exposures.
Three Months Ended
June 30,
Six Months Ended
June 30,
2022202120222021
Beginning balance$45,850 $44,217 $50,314 $44,152 
Credit loss expense (benefit)4,396 4,379 (68)4,444 
Ending balance$50,246 $48,596 $50,246 $48,596 
20

Table of Contents
Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Beginning balance$54,918 $45,850 $58,593 $50,314 
Credit loss expense (benefit)(2,037)4,396 (5,712)(68)
Ending balance$52,881 $50,246 $52,881 $50,246 
Lease Commitments. We lease certain office facilities and office equipment under operating leases. The components of total lease expense were as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Amortization of lease right-of-use assetsAmortization of lease right-of-use assets$8,209 $8,129 $16,314 $16,412 Amortization of lease right-of-use assets$8,747 $8,209 $17,512 $16,314 
Short-term lease expenseShort-term lease expense490 530 1,103 734 Short-term lease expense493 490 902 1,103 
Non-lease components (including taxes, insurance, common maintenance, etc.)Non-lease components (including taxes, insurance, common maintenance, etc.)2,748 2,337 5,768 5,341 Non-lease components (including taxes, insurance, common maintenance, etc.)3,662 2,748 7,043 5,768 
TotalTotal$11,447 $10,996 $23,185 $22,487 Total$12,902 $11,447 $25,457 $23,185 
Right-of-use lease assets totaled $278.3$286.5 million at June 30, 20222023 and $281.4$288.8 million at December 31, 20212022 and are reported as a component of premises and equipment on our accompanying consolidated balance sheets. The related lease liabilities totaled $310.5$320.6 million at June 30, 20222023 and $313.4$321.9 million at December 31, 20212022 and are reported as a component of accrued interest payable and other liabilities in the accompanying consolidated balance sheets. Lease payments under operating leases that were applied to our operating lease liability totaled $8.2 million and $16.6 million during the three and six months ended June 30, 2023, respectively, and $8.4 million and $16.4 million during the three and six months ended June 30, 2022, respectively, and $8.0 million and $16.1 million during the three and six months ended June 30, 2021, respectively. There has been no significant change in our expected future minimum lease payments since December 31, 2021.2022. See the 20212022 Form 10-K for information regarding these commitments.
Litigation. We are subject to various claims and legal actions that have arisen in the course of conducting business. Management does not expect the ultimate disposition of these matters to have a material adverse impact on our financial statements.
Note 7 - Capital and Regulatory Matters
Banks and bank holding companies are subject to various regulatory capital requirements administered by state and federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weighting and other factors.
22

Table of Contents
Cullen/Frost’s and Frost Bank’s Common Equity Tier 1 capital (“CET1”) includes common stock and related paid-in capital, net of treasury stock, and retained earnings. In connection with the adoption of the Basel III Capital Rules, we elected to opt-out of the requirement to include most components of accumulated other comprehensive income in CET1. We also elected to exclude the effects of credit loss accounting under CECL from CET1 for a five-year transitional period, as further discussed in our 20212022 Form 10-K. This CECL transitional adjustment totaled $46.2$30.8 million and $61.6$46.2 million at June 30, 20222023 and December 31, 2021,2022, respectively. CET1 is reduced by goodwill and other intangible assets, net of associated deferred tax liabilities. Frost Bank's CET1 is also reduced by its equity investment in its financial subsidiary, Frost Insurance Agency (“FIA”).
Tier 1 capital includes CET1 and additional Tier 1 capital. For Cullen/Frost, additional Tier 1 capital included $145.5 million of 4.450% non-cumulative perpetual preferred stock at June 30, 20222023 and December 31, 2021,2022, the details of which are further discussed below. Frost Bank did 0tnot have any additional Tier 1 capital beyond Common Equity Tier 1 at June 30, 20222023 or December 31, 2021.2022. Total capital includes Tier 1 capital and Tier 2 capital. Tier 2 capital for both Cullen/Frost and Frost Bank includes a permissible portion of the allowances for credit losses on securities, loans and off-balance-sheet credit exposures. Tier 2 capital for Cullen/Frost also includes the permissible portion of qualified subordinated debt (which decreases 20.0% per year during the final five years of the term of the notes) totaling $80.0$60.0 million at June 30, 20222023 and $100.0$80.0 million at December 31, 20212022 and trust preferred securities totaling $120.0 million at both June 30, 20222023 and December 31, 2021.
21

Table of Contents2022.
The following table presents actual and required capital ratios as of June 30, 20222023 and December 31, 20212022 for Cullen/Frost and Frost Bank under the Basel III Capital Rules. Capital levels required to be considered well capitalizedwell-capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. See the 20212022 Form 10-K for a more detailed discussion of the Basel III Capital Rules.
ActualMinimum Capital Required - Basel IIIRequired to be
Considered Well
Capitalized
ActualMinimum Capital Required Plus Capital Conservation Buffer
Required to be
Considered Well-
Capitalized (1)
Capital
Amount
RatioCapital
Amount
RatioCapital
Amount
RatioCapital
Amount
RatioCapital
Amount
RatioCapital
Amount
Ratio
June 30, 2022
June 30, 2023June 30, 2023
Common Equity Tier 1 to Risk-Weighted AssetsCommon Equity Tier 1 to Risk-Weighted AssetsCommon Equity Tier 1 to Risk-Weighted Assets
Cullen/FrostCullen/Frost$3,485,759 12.64 %$1,930,703 7.00 %$1,792,796 6.50 %Cullen/Frost$3,943,110 13.42 %$2,056,052 7.00 %N/AN/A
Frost BankFrost Bank3,423,585 12.42 1,929,368 7.00 1,791,556 6.50 Frost Bank3,973,809 13.55 2,053,467 7.00 $1,906,791 6.50 %
Tier 1 Capital to Risk-Weighted AssetsTier 1 Capital to Risk-Weighted AssetsTier 1 Capital to Risk-Weighted Assets
Cullen/FrostCullen/Frost3,631,211 13.17 2,344,425 8.50 2,206,518 8.00 Cullen/Frost4,088,562 13.92 2,496,634 8.50 1,762,330 6.00 
Frost BankFrost Bank3,423,585 12.42 2,342,804 8.50 2,204,992 8.00 Frost Bank3,973,809 13.55 2,493,496 8.50 2,346,820 8.00 
Total Capital to Risk-Weighted AssetsTotal Capital to Risk-Weighted AssetsTotal Capital to Risk-Weighted Assets
Cullen/FrostCullen/Frost4,069,206 14.75 2,896,055 10.50 2,758,148 10.00 Cullen/Frost4,520,634 15.39 3,084,077 10.50 2,937,217 10.00 
Frost BankFrost Bank3,661,580 13.28 2,894,052 10.50 2,756,240 10.00 Frost Bank4,225,881 14.41 3,080,201 10.50 2,933,525 10.00 
Leverage RatioLeverage RatioLeverage Ratio
Cullen/FrostCullen/Frost3,631,211 7.03 2,067,513 4.00 2,584,391 5.00 Cullen/Frost4,088,562 8.11 2,016,414 4.00 N/AN/A
Frost BankFrost Bank3,423,585 6.62 2,067,942 4.00 2,584,928 5.00 Frost Bank3,973,809 7.88 2,015,896 4.00 2,519,870 5.00 
December 31, 2021
December 31, 2022December 31, 2022
Common Equity Tier 1 to Risk-Weighted AssetsCommon Equity Tier 1 to Risk-Weighted AssetsCommon Equity Tier 1 to Risk-Weighted Assets
Cullen/FrostCullen/Frost$3,371,043 13.13 %$1,796,549 7.00 %$1,668,224 6.50 %Cullen/Frost$3,751,200 12.85 %$2,042,876 7.00 %N/AN/A
Frost BankFrost Bank3,261,532 12.72 1,795,221 7.00 1,666,991 6.50 Frost Bank3,789,056 13.00 2,040,388 7.00 $1,894,646 6.50 %
Tier 1 Capital to Risk-Weighted AssetsTier 1 Capital to Risk-Weighted AssetsTier 1 Capital to Risk-Weighted Assets
Cullen/FrostCullen/Frost3,516,495 13.70 2,181,523 8.50 2,053,198 8.00 Cullen/Frost3,896,652 13.35 2,480,635 8.50 1,751,036 6.00 
Frost BankFrost Bank3,261,532 12.72 2,179,911 8.50 2,051,681 8.00 Frost Bank3,789,056 13.00 2,477,614 8.50 2,331,872 8.00 
Total Capital to Risk-Weighted AssetsTotal Capital to Risk-Weighted AssetsTotal Capital to Risk-Weighted Assets
Cullen/FrostCullen/Frost3,966,244 15.45 2,694,823 10.50 2,566,498 10.00 Cullen/Frost4,330,982 14.84 3,064,313 10.50 2,918,394 10.00 
Frost BankFrost Bank3,491,281 13.61 2,692,831 10.50 2,564,601 10.00 Frost Bank4,023,386 13.80 3,060,583 10.50 2,914,841 10.00 
Leverage RatioLeverage RatioLeverage Ratio
Cullen/FrostCullen/Frost3,516,495 7.34 1,917,533 4.00 2,396,917 5.00 Cullen/Frost3,896,652 7.29 2,136,680 4.00 N/AN/A
Frost BankFrost Bank3,261,532 6.80 1,917,679 4.00 2,397,099 5.00 Frost Bank3,789,056 7.09 2,136,316 4.00 2,670,395 5.00 
____________________
(1)“Well-capitalized” minimum Common Equity Tier 1 to Risk-Weighted Assets and Leverage Ratio are not formally defined under applicable banking regulations for bank holding companies.

23

Table of Contents
As of June 30, 2022,2023, capital levels at Cullen/Frost and Frost Bank exceed all capital adequacy requirements under the Basel III Capital Rules. Based on the ratios presented above, capital levels as of June 30, 20222023 at Cullen/Frost and Frost Bank exceed the minimum levels necessary to be considered “well capitalized.“well-capitalized.
Cullen/Frost and Frost Bank are subject to the regulatory capital requirements administered by the Federal Reserve Board and, for Frost Bank, the Federal Deposit Insurance Corporation (“FDIC”). Regulatory authorities can initiate certain mandatory actions if Cullen/Frost or Frost Bank fail to meet the minimum capital requirements, which could have a direct material effect on our financial statements. Management believes, as of June 30, 2022,2023, that Cullen/Frost and Frost Bank meet all capital adequacy requirements to which they are subject.
Preferred Stock. Outstanding preferred stock includes 150,000 shares, or $150.0 million in aggregate liquidation preference, of our 4.450% Non-Cumulative Perpetual Preferred Stock, Series B, par value $0.01 and liquidation preference $1,000 per share (“Series B Preferred Stock”). Each share of Series B Preferred Stock issued and outstanding is represented by 40 depositary shares, each representing a 1/40th ownership interest in a share of the Series B Preferred Stock (equivalent to a liquidation preference of $25 per share). The Series B Preferred Stock qualifies as Tier 1 capital for the purposes of the regulatory capital calculations. The net proceeds from the issuance and sale of the Series B Preferred Stock, after deducting $4.5 million of issuance costs including the underwriting discount and professional service fees, among other things, were approximately $145.5 million. Refer to our 20212022 Form 10-K for additional details related to our Series B Preferred Stock.
Stock Repurchase Plans. From time to time, our board of directors has authorized stock repurchase plans. In general, stock repurchase plans allow us to proactively manage our capital position and return excess capital to shareholders. Shares purchased under such plans also provide us with shares of common stock necessary to satisfy obligations related to stock compensation awards. On January 26, 2022,25, 2023, our board of directors authorized a $100.0 million stock repurchase program, allowing us to repurchase shares of our common stock over a one-year period from time to time at various prices in the open market or
22

Table of Contents
through private transactions. Under this plan, we repurchased 288,912 shares at a total cost of $28.0 million (which includes applicable excise taxes) during the second quarter of 2023. No shares have beenwere repurchased under this plan or the prior planplans during the reported periods. Under the Basel III Capital Rules, Cullen/Frost may not repurchase or redeem any of its preferred stock or subordinated notes and, in some cases, its common stock without the prior approval of the Federal Reserve Board.
Dividend Restrictions. In the ordinary course of business, Cullen/Frost is dependent upon dividends from Frost Bank to provide funds for the payment of dividends to shareholders and to provide for other cash requirements, including to repurchase its common stock. Banking regulations may limit the amount of dividends that may be paid. Approval by regulatory authorities is required if the effect of dividends declared would cause the regulatory capital of Frost Bank to fall below specified minimum levels. Approval is also required if dividends declared exceed the net profits for that year combined with the retained net profits for the preceding two years. Under the foregoing dividend restrictions and while maintaining its “well capitalized”“well-capitalized” status, at June 30, 2022,2023, Frost Bank could pay aggregate dividends of up to $447.3$967.6 million to Cullen/Frost without prior regulatory approval.
Under the terms of the junior subordinated deferrable interest debentures that Cullen/Frost has issued to Cullen/Frost Capital Trust II, Cullen/Frost has the right at any time during the term of the debentures to defer the payment of interest at any time or from time to time for an extension period not exceeding 20 consecutive quarterly periods with respect to each extension period. In the event that we have elected to defer interest on the debentures, we may not, with certain exceptions, declare or pay any dividends or distributions on our capital stock or purchase or acquire any of our capital stock.
Under the terms of the Series B Preferred Stock, in the event that we do not declare and pay dividends on the Series B Preferred Stock for the most recent dividend period, we may not, with certain exceptions, declare or pay dividends on, or purchase, redeem or otherwise acquire, shares of our common stock or any of our securities that rank junior to the Series B Preferred Stock.
Note 8 - Derivative Financial Instruments
The fair value of derivative positions outstanding is included in accrued interest receivable and other assets and accrued interest payable and other liabilities in the accompanying consolidated balance sheets and in the net change in each of these financial statement line items in the accompanying consolidated statements of cash flows.
Interest Rate Derivatives. We utilize various interest rate swaps, caps swaptions and floors, among other things, to mitigate exposure to interest rate risk and to facilitate the needs of our customers. Our objectives for utilizing these derivative instruments are described in our 20212022 Form 10-K.
The notional amounts and estimated fair values of interest rate derivative contracts are presented in the following table. The fair values of interest rate derivative contracts are estimated utilizing internal valuation methods with observable market data inputs, or as determined by the Chicago Mercantile Exchange (“CME”) for centrally cleared derivative contracts. CME rules
24

Table of Contents
legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives' exposure rather than collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting and financial reporting purposes. Variation margin, as determined by the CME, is settled daily. As a result, derivative contracts that clear through the CME have an estimated fair value of zero as of June 30, 20222023 and December 31, 2021.2022.
June 30, 2022December 31, 2021
Notional
Amount
Estimated
Fair Value
Notional
Amount
Estimated
Fair Value
Derivatives designated as hedges of fair value:
Financial institution counterparties:
Loan/lease interest rate swaps – assets$1,743 $18 $— $— 
Loan/lease interest rate swaps – liabilities— — 2,426 (34)
Non-hedging interest rate derivatives:
Financial institution counterparties:
Loan/lease interest rate swaps – assets904,706 27,908 247,592 1,207 
Loan/lease interest rate swaps – liabilities244,663 (2,489)928,756 (19,142)
Loan/lease interest rate caps – assets269,389 10,209 270,431 3,239 
Customer counterparties:
Loan/lease interest rate swaps – assets244,663 3,350 928,756 39,864 
Loan/lease interest rate swaps – liabilities904,706 (45,542)247,592 (2,846)
Loan/lease interest rate caps – liabilities269,389 (10,209)270,431 (3,239)
23

Table of Contents
June 30, 2023December 31, 2022
Notional
Amount
Estimated
Fair Value
Notional
Amount
Estimated
Fair Value
Derivatives designated as hedges of fair value:
Financial institution counterparties:
Loan/lease interest rate swaps – assets$— $— $1,614 $19 
Non-hedging interest rate derivatives:
Financial institution counterparties:
Loan/lease interest rate swaps – assets1,162,694 78,404 1,165,812 70,416 
Loan/lease interest rate swaps – liabilities72,833 (1,332)78,798 (1,102)
Loan/lease interest rate caps – assets229,804 14,557 246,442 15,256 
Customer counterparties:
Loan/lease interest rate swaps – assets78,789 1,401 53,570 1,102 
Loan/lease interest rate swaps – liabilities1,156,738 (78,402)1,175,563 (79,175)
Loan/lease interest rate caps – liabilities229,804 (14,557)246,442 (15,256)
The weighted-average rates paid and received for interest rate swaps outstanding at June 30, 20222023 were as follows:
Weighted-AverageWeighted-Average
Interest
Rate
Paid
Interest
Rate
Received
Interest
Rate
Paid
Interest
Rate
Received
Interest rate swaps:Interest rate swaps:Interest rate swaps:
Fair value hedge loan/lease interest rate swaps1.58 %1.06 %
Non-hedging interest rate swaps – financial institution counterpartiesNon-hedging interest rate swaps – financial institution counterparties3.71 2.87 Non-hedging interest rate swaps – financial institution counterparties3.96 %5.62 %
Non-hedging interest rate swaps – customer counterpartiesNon-hedging interest rate swaps – customer counterparties2.87 3.71 Non-hedging interest rate swaps – customer counterparties5.62 3.96 
The weighted-average strike rate for outstanding interest rate caps was 3.28%3.32% at June 30, 2022.2023.
Commodity Derivatives. We enter into commodity swaps and option contracts that are not designated as hedging instruments primarily to accommodate the business needs of our customers. Upon the origination of a commodity swap or option contract with a customer, we simultaneously enter into an offsetting contract with a third partythird-party financial institution to mitigate the exposure to fluctuations in commodity prices.
The notional amounts and estimated fair values of non-hedging commodity swap and option derivative positions outstanding are presented in the following table. We obtain dealer quotations and use internal valuation methods with observable market data inputs to value our commodity derivative positions.
June 30, 2022December 31, 2021June 30, 2023December 31, 2022
Notional
Units
Notional
Amount
Estimated
Fair Value
Notional
Amount
Estimated
Fair Value
Notional
Units
Notional
Amount
Estimated
Fair Value
Notional
Amount
Estimated
Fair Value
Financial institution counterparties:Financial institution counterparties:Financial institution counterparties:
Oil – assetsOil – assetsBarrels4,173 $20,653 4,809 $14,721 Oil – assetsBarrels4,134 $30,701 4,024 $27,082 
Oil – liabilitiesOil – liabilitiesBarrels9,125 (181,161)7,032 (73,594)Oil – liabilitiesBarrels5,345 (21,229)6,068 (53,579)
Natural gas – assetsNatural gas – assetsMMBTUs11,753 3,181 15,947 4,143 Natural gas – assetsMMBTUs16,694 6,668 16,539 6,220 
Natural gas – liabilitiesNatural gas – liabilitiesMMBTUs21,557 (38,990)29,446 (21,249)Natural gas – liabilitiesMMBTUs9,871 (6,841)15,682 (19,138)
Customer counterparties:Customer counterparties:Customer counterparties:
Oil – assetsOil – assetsBarrels9,606 182,274 7,046 74,437 Oil – assetsBarrels5,391 21,580 6,068 54,219 
Oil – liabilitiesOil – liabilitiesBarrels3,692 (20,306)4,796 (14,294)Oil – liabilitiesBarrels4,088 (30,255)4,024 (26,551)
Natural gas – assetsNatural gas – assetsMMBTUs21,557 39,110 29,446 21,456 Natural gas – assetsMMBTUs9,871 6,865 15,682 19,164 
Natural gas – liabilitiesNatural gas – liabilitiesMMBTUs11,753 (3,181)15,947 (4,124)Natural gas – liabilitiesMMBTUs16,694 (6,477)16,539 (6,124)
Foreign Currency Derivatives. We enter into foreign currency forward and option contracts that are not designated as hedging instruments primarily to accommodate the business needs of our customers. Upon the origination of a foreign currency denominated transaction with a customer, we simultaneously enter into an offsetting contract with a third partythird-party financial
25

Table of Contents
institution to negate the exposure to fluctuations in foreign currency exchange rates. We also utilize foreign currency forward contracts and options that are not designated as hedging instruments to mitigate the economic effect of fluctuations in foreign currency exchange rates on foreign currency holdings and certain short-term, non-U.S. dollar denominated loans. The notional amounts and fair values of open foreign currency forward and option contracts were as follows:are presented in the following table.
 June 30, 2022December 31, 2021
Notional
Currency
Notional
Amount
Estimated
Fair Value
Notional
Amount
Estimated
Fair Value
Financial institution counterparties:
Forward and option contracts – assetsEUR6,400 $16 1,900 $29 
Forward and option contracts – assetsCAD658 658 — 
Forward and option contracts – liabilitiesEUR6,400 (174)— — 
Customer counterparties:
Forward and option contracts – assetsEUR6,400 174 — — 
Forward and option contracts – assetsCAD— — 658 
Forward and option contracts – liabilitiesEUR6,400 (16)1,900 (55)
Forward and option contracts – liabilitiesCAD658 (5)— — 
24

Table of Contents
 June 30, 2023December 31, 2022
Notional
Currency
Notional
Amount
Estimated
Fair Value
Notional
Amount
Estimated
Fair Value
Financial institution counterparties:
Forward and option contracts – assetsEUR— $— 875 $
Forward and option contracts – liabilitiesEUR— — 875 (10)
Customer counterparties:
Forward and option contracts – assetsEUR— — 875 10 
Forward and option contracts – liabilitiesEUR— — 875 (1)
Gains, Losses and Derivative Cash Flows. For fair value hedges, the changes in the fair value of both the derivative hedging instrument and the hedged item are included in other non-interest income or other non-interest expense. The extent that such changes in fair value do not offset represents hedge ineffectiveness. Net cash flows from interest rate swaps on commercial loans/leases designated as hedging instruments in effective hedges of fair value are included in interest income on loans. For non-hedging derivative instruments, gains and losses due to changes in fair value and all cash flows are included in other non-interest income and other non-interest expense.
Amounts included in the consolidated statements of income related to interest rate derivatives designated as hedges of fair value were as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Commercial loan/lease interest rate swaps:Commercial loan/lease interest rate swaps:Commercial loan/lease interest rate swaps:
Amount of gain (loss) included in interest income on loansAmount of gain (loss) included in interest income on loans$(5)$(25)$(18)$(53)Amount of gain (loss) included in interest income on loans$$(5)$16 $(18)
Amount of (gain) loss included in other non-interest expenseAmount of (gain) loss included in other non-interest expenseAmount of (gain) loss included in other non-interest expense
As stated above, we enter into non-hedge related derivative positions primarily to accommodate the business needs of our customers. Upon the origination of a derivative contract with a customer, we simultaneously enter into an offsetting derivative contract with a third party financial institution. We recognize immediate income based upon the difference in the bid/ask spread of the underlying transactions with our customers and the third party. Because we act only as an intermediary for our customer, subsequent changes in the fair value of the underlying derivative contracts for the most part offset each other and do not significantly impact our results of operations.
Amounts included in the consolidated statements of income related to non-hedge related derivative instruments are presented in the table below.
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Non-hedging interest rate derivatives:Non-hedging interest rate derivatives:Non-hedging interest rate derivatives:
Other non-interest incomeOther non-interest income$515 $141 $1,031 $1,728 Other non-interest income$1,002 $515 $1,712 $1,031 
Other non-interest expenseOther non-interest expense— — — (1)Other non-interest expense— — — 
Non-hedging commodity derivatives:Non-hedging commodity derivatives:Non-hedging commodity derivatives:
Other non-interest incomeOther non-interest income649 969 1,578 2,123 Other non-interest income503 649 925 1,578 
Non-hedging foreign currency derivatives:Non-hedging foreign currency derivatives:Non-hedging foreign currency derivatives:
Other non-interest incomeOther non-interest income45 — 63 30 Other non-interest income— 45 25 63 
Counterparty Credit Risk. Our credit exposure relating to interest rate, swaps, commodity swaps/options and foreign currency forward and optionderivative contracts with bank customers was approximately $198.1$6.8 million at June 30, 2022.2023. This credit exposure is partly mitigated as transactions with customers are generally secured by the collateral, if any, securing the underlying transaction being hedged. Our credit exposure, net of collateral pledged, relating to interest rate, swaps, commodity swaps/options and foreign currency forward/optionderivative contracts with upstream financial institution counterparties was approximately $41.5 million$341 thousand at June 30, 2022.2023. This amount was primarily related to initial margin payments to the CME and excess collateral we posted to counterparties. Excess collateral isa shortfall of collateral. Collateral positions are generally cleared on the next business day. Collateral levels for upstream financial institution counterparties are monitored and adjusted as necessary. See Note 9 – Balance Sheet Offsetting and
26

Table of Contents
Repurchase Agreements for additional information regarding our credit exposure with upstream financial institution counterparties. At June 30, 2022, we had $212.4 million in2023, cash collateral related to derivative contracts on deposit with other financial institution counterparties.
25
counterparties was not significant.

Table of Contents
Note 9 - Balance Sheet Offsetting and Repurchase Agreements
Balance Sheet Offsetting. Certain financial instruments, including resell and repurchase agreements and derivatives, may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements or similar agreements. Our derivative transactions with upstream financial institution counterparties are generally executed under International Swaps and Derivative Association (“ISDA”) master agreements which include “right of set-off” provisions. In such cases there is generally a legally enforceable right to offset recognized amounts and there may be an intention to settle such amounts on a net basis. Nonetheless, we do not generally offset such financial instruments for financial reporting purposes.
Information about financial instruments that are eligible for offset in the consolidated balance sheet as of June 30, 20222023 is presented in the following tables.
Gross Amount
Recognized
Gross Amount
Offset
Net Amount
Recognized
Gross Amount
Recognized
Gross Amount
Offset
Net Amount
Recognized
June 30, 2022
June 30, 2023June 30, 2023
Financial assets:Financial assets:Financial assets:
Derivatives:Derivatives:Derivatives:
Loan/lease interest rate swaps and caps$38,135 $— $38,135 
Commodity swaps and options23,834 — 23,834 
Foreign currency forward contracts25 — 25 
Interest rate contractsInterest rate contracts$92,961 $— $92,961 
Commodity contractsCommodity contracts37,369 — 37,369 
Total derivativesTotal derivatives61,994 — 61,994 Total derivatives130,330 — 130,330 
Resell agreementsResell agreements9,650 — 9,650 Resell agreements84,650 — 84,650 
TotalTotal$71,644 $— $71,644 Total$214,980 $— $214,980 
Financial liabilities:Financial liabilities:Financial liabilities:
Derivatives:Derivatives:Derivatives:
Loan/lease interest rate swaps and caps$2,489 $— $2,489 
Commodity swaps and options220,151 — 220,151 
Foreign currency forward contracts174 — 174 
Interest rate contractsInterest rate contracts$1,332 $— $1,332 
Commodity contractsCommodity contracts28,070 — 28,070 
Total derivativesTotal derivatives222,814 — 222,814 Total derivatives29,402 — 29,402 
Repurchase agreementsRepurchase agreements1,664,685 — 1,664,685 Repurchase agreements3,569,870 — 3,569,870 
TotalTotal$1,887,499 $— $1,887,499 Total$3,599,272 $— $3,599,272 
Gross Amounts Not OffsetGross Amounts Not Offset
Net Amount
Recognized
Financial
Instruments
CollateralNet
Amount
Net Amount
Recognized
Financial
Instruments
CollateralNet
Amount
June 30, 2022
June 30, 2023June 30, 2023
Financial assets:Financial assets:Financial assets:
Derivatives:Derivatives:Derivatives:
Counterparty A$41 $(41)$— $— 
Counterparty BCounterparty B25,962 (25,962)— — Counterparty B$32,143 $(9,548)$(22,595)$— 
Counterparty C16 (16)— — 
Counterparty ECounterparty E16,312 (896)(15,240)176 
Counterparty FCounterparty F18,387 (8,839)(9,463)85 
Counterparty GCounterparty G10,484 — (10,430)54 
Other counterpartiesOther counterparties35,975 (25,533)(10,442)— Other counterparties53,004 (10,119)(42,861)24 
Total derivativesTotal derivatives61,994 (51,552)(10,442)— Total derivatives130,330 (29,402)(100,589)339 
Resell agreementsResell agreements9,650 — (9,650)— Resell agreements84,650 — (84,650)— 
TotalTotal$71,644 $(51,552)$(20,092)$— Total$214,980 $(29,402)$(185,239)$339 
Financial liabilities:Financial liabilities:Financial liabilities:
Derivatives:Derivatives:Derivatives:
Counterparty A$1,726 $(41)$(1,571)$114 
Counterparty BCounterparty B50,901 (25,962)(24,939)— Counterparty B$9,548 $(9,548)$— $— 
Counterparty C174 (16)(10)148 
Counterparty ECounterparty E896 (896)— — 
Counterparty FCounterparty F8,839 (8,839)— — 
Other counterpartiesOther counterparties170,013 (25,533)(144,463)17 Other counterparties10,119 (10,119)— — 
Total derivativesTotal derivatives222,814 (51,552)(170,983)279 Total derivatives29,402 (29,402)— — 
Repurchase agreementsRepurchase agreements1,664,685 — (1,664,685)— Repurchase agreements3,569,870 — (3,569,870)— 
TotalTotal$1,887,499 $(51,552)$(1,835,668)$279 Total$3,599,272 $(29,402)$(3,569,870)$— 
2627

Table of Contents
Information about financial instruments that are eligible for offset in the consolidated balance sheet as of December 31, 20212022 is presented in the following tables.
Gross Amount
Recognized
Gross Amount
Offset
Net Amount
Recognized
Gross Amount
Recognized
Gross Amount
Offset
Net Amount
Recognized
December 31, 2021
December 31, 2022December 31, 2022
Financial assets:Financial assets:Financial assets:
Derivatives:Derivatives:Derivatives:
Loan/lease interest rate swaps and caps$4,446 $— $4,446 
Commodity swaps and options18,864 — 18,864 
Interest rate contractsInterest rate contracts$85,691 $— $85,691 
Commodity contractsCommodity contracts33,302 — 33,302 
Foreign currency contractsForeign currency contracts— 
Total derivativesTotal derivatives23,339 — 23,339 Total derivatives118,994 — 118,994 
Resell agreementsResell agreements7,903 — 7,903 Resell agreements87,150 — 87,150 
TotalTotal$31,242 $— $31,242 Total$206,144 $— $206,144 
Financial liabilities:Financial liabilities:Financial liabilities:
Derivatives:Derivatives:Derivatives:
Loan/lease interest rate swaps and caps$19,176 $— $19,176 
Commodity swaps and options94,843 — 94,843 
Interest rate contractsInterest rate contracts$1,102 $— $1,102 
Commodity contractsCommodity contracts72,717 — 72,717 
Foreign currency contractsForeign currency contracts10 — 10 
Total derivativesTotal derivatives114,019 — 114,019 Total derivatives73,829 — 73,829 
Repurchase agreementsRepurchase agreements2,740,799 — 2,740,799 Repurchase agreements4,660,641 — 4,660,641 
TotalTotal$2,854,818 $— $2,854,818 Total$4,734,470 $— $4,734,470 
Gross Amounts Not OffsetGross Amounts Not Offset
Net Amount
Recognized
Financial
Instruments
CollateralNet
Amount
Net Amount
Recognized
Financial
Instruments
CollateralNet
Amount
December 31, 2021
December 31, 2022December 31, 2022
Financial assets:Financial assets:Financial assets:
Derivatives:Derivatives:Derivatives:
Counterparty A$$(6)$— $— 
Counterparty BCounterparty B7,655 (7,655)— — Counterparty B$39,370 $(24,500)$(14,870)$— 
Counterparty ECounterparty E14,430 (47)(14,131)252 
Counterparty FCounterparty F17,297 (17,297)— — 
Counterparty GCounterparty G10,660 — (10,660)— 
Other counterpartiesOther counterparties15,678 (15,678)— — Other counterparties37,237 (20,684)(16,307)246 
Total derivativesTotal derivatives23,339 (23,339)— — Total derivatives118,994 (62,528)(55,968)498 
Resell agreementsResell agreements7,903 — (7,903)— Resell agreements87,150 — (87,150)— 
TotalTotal$31,242 $(23,339)$(7,903)$— Total$206,144 $(62,528)$(143,118)$498 
Financial liabilities:Financial liabilities:Financial liabilities:
Derivatives:Derivatives:Derivatives:
Counterparty A$3,870 $(6)$(3,864)$— 
Counterparty BCounterparty B28,130 (7,655)(20,475)— Counterparty B$24,500 $(24,500)$— $— 
Counterparty C— (9)— 
Counterparty ECounterparty E47 (47)— — 
Counterparty FCounterparty F27,747 (17,297)(8,479)1,971 
Counterparty GCounterparty G— — — — 
Other counterpartiesOther counterparties82,010 (15,678)(66,225)107 Other counterparties21,535 (20,684)(851)— 
Total derivativesTotal derivatives114,019 (23,339)(90,573)107 Total derivatives73,829 (62,528)(9,330)1,971 
Repurchase agreementsRepurchase agreements2,740,799 — (2,740,799)— Repurchase agreements4,660,641 — (4,660,641)— 
TotalTotal$2,854,818 $(23,339)$(2,831,372)$107 Total$4,734,470 $(62,528)$(4,669,971)$1,971 
2728

Table of Contents
Repurchase Agreements. We utilize securities sold under agreements to repurchase to facilitate the needs of our customers and to facilitate secured short-term funding needs. Securities sold under agreements to repurchase are stated at the amount of cash received in connection with the transaction. We monitor collateral levels on a continuous basis. We may be required to provide additional collateral based on the fair value of the underlying securities. Securities pledged as collateral under repurchase agreements are maintained with our safekeeping agents.
The remaining contractual maturity of repurchase agreements in the consolidated balance sheets as of June 30, 20222023 and December 31, 20212022 is presented in the following tables.
Remaining Contractual Maturity of the AgreementsRemaining Contractual Maturity of the Agreements
Overnight and ContinuousUp to 30 Days30-90 DaysGreater than 90 DaysTotalOvernight and ContinuousUp to 30 Days30-90 DaysGreater than 90 DaysTotal
June 30, 2022
June 30, 2023June 30, 2023
Repurchase agreements:Repurchase agreements:Repurchase agreements:
U.S. TreasuryU.S. Treasury$834,063 $— $— $— $834,063 U.S. Treasury$2,716,439 $— $— $— $2,716,439 
Residential mortgage-backed securitiesResidential mortgage-backed securities830,622 — — — 830,622 Residential mortgage-backed securities853,431 — — — 853,431 
Total borrowingsTotal borrowings$1,664,685 $— $— $— $1,664,685 Total borrowings$3,569,870 $— $— $— $3,569,870 
Gross amount of recognized liabilities for repurchase agreementsGross amount of recognized liabilities for repurchase agreements$1,664,685 Gross amount of recognized liabilities for repurchase agreements$3,569,870 
Amounts related to agreements not included in offsetting disclosures aboveAmounts related to agreements not included in offsetting disclosures above$— Amounts related to agreements not included in offsetting disclosures above$— 
December 31, 2021
December 31, 2022December 31, 2022
Repurchase agreements:Repurchase agreements:Repurchase agreements:
U.S. TreasuryU.S. Treasury$1,342,591 $— $— $— $1,342,591 U.S. Treasury$3,735,061 $— $— $— $3,735,061 
Residential mortgage-backed securitiesResidential mortgage-backed securities1,398,208 — — — 1,398,208 Residential mortgage-backed securities925,580 — — — 925,580 
Total borrowingsTotal borrowings$2,740,799 $— $— $— $2,740,799 Total borrowings$4,660,641 $— $— $— $4,660,641 
Gross amount of recognized liabilities for repurchase agreementsGross amount of recognized liabilities for repurchase agreements$2,740,799 Gross amount of recognized liabilities for repurchase agreements$4,660,641 
Amounts related to agreements not included in offsetting disclosures aboveAmounts related to agreements not included in offsetting disclosures above$— Amounts related to agreements not included in offsetting disclosures above$— 
Note 10 - Stock-Based Compensation
A combined summary of activity in our active stock plans is presented in the table below. Performance stock units outstanding are presented assuming attainment of the maximum payout rate as set forth by the performance criteria. As of June 30, 2022,2023, there were 788,070514,028 shares remaining available for grant for future stock-based compensation awards.
Deferred
Stock Units
Outstanding
Non-Vested
Stock Units
Outstanding
Performance
Stock Units
Outstanding
Stock Options
Outstanding
Number
of Units
Weighted-
Average
Fair Value
at Grant
Number
of Units
Weighted-
Average
Fair Value
at Grant
Number
of Units
Weighted-
Average
Fair Value
at Grant
Number
of Shares
Weighted-
Average
Exercise
Price
Balance, January 1, 202256,301 $79.21 449,337 $93.05 202,460 $84.71 877,681 $69.02 
Authorized— — — — — — — — 
Granted5,382 133.67 3,460 132.72 — — — — 
Exercised/vested(16,022)74.89 — — (25,180)87.18 (103,060)62.97 
Forfeited/expired— — (3,167)94.57 (16,058)87.18 — — 
Balance, June 30, 202245,661 87.15 449,630 93.35 161,222 84.08 774,621 69.83 
28

Table of Contents
Deferred
Stock Units
Outstanding
Non-Vested
Restricted Stock Units
Outstanding
Performance
Stock Units
Outstanding
Stock Options
Outstanding
Number
of Units
Weighted-
Average
Fair Value
at Grant
Number
of Units
Weighted-
Average
Fair Value
at Grant
Number
of Units
Weighted-
Average
Fair Value
at Grant
Number
of Shares
Weighted-
Average
Exercise
Price
Balance, January 1, 202345,661 $87.15 465,319 $105.36 213,749 $96.20 616,227 $71.27 
Granted8,503 103.47 2,594 128.42 — — — — 
Exercised/vested— — (1,957)91.96 (28,151)85.74 (33,905)72.13 
Forfeited/expired— — (1,415)116.02 (18,254)85.74 — — 
Balance, June 30, 202354,164 89.71 464,541 105.52 167,344 99.10 582,322 71.22 
Shares issued in connection with stock compensation awards are issued from available treasury shares. If no treasury shares are available, new shares are issued from available authorized shares. Shares issued in connection with stock compensation awards along with other related information were as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
New shares issued from available authorized sharesNew shares issued from available authorized shares— — — — New shares issued from available authorized shares— — 49,887 — 
Shares issued from available treasury stockShares issued from available treasury stock28,832 114,252 144,262 628,076 Shares issued from available treasury stock13,626 28,832 14,126 144,262 
Proceeds from stock option exercisesProceeds from stock option exercises$751 $7,285 $6,490 $36,682 Proceeds from stock option exercises$946 $751 $2,446 $6,490 

29

Table of Contents
Stock-based compensation expense is recognized ratably over the requisite service period for all awards. For most stock option awards, the service period generally matches the vesting period. For stock options granted to certain executive officers and for non-vested stock units granted to all participants, the service period does not extend past the date the participant reaches 65 years of age. Deferred stock units granted to non-employee directors generally have immediate vesting and the related expense is fully recognized on the date of grant. For performance stock units, the service period generally matches the three-year performance period specified by the award, however, the service period does not extend past the date the participant reaches 65 years of age. Expense recognized each period is dependent upon our estimate of the number of shares that will ultimately be issued.
Stock-based compensation expense or benefit and the related income tax benefit is presented in the following table. The service period for performance stock units granted each year begins on January 1 of the following year.
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Non-vested stock unitsNon-vested stock units$2,291 $1,768 $4,649 $3,651 Non-vested stock units$2,864 $2,291 $6,171 $4,649 
Deferred stock unitsDeferred stock units720 700 720 700 Deferred stock units880 720 880 720 
Performance stock unitsPerformance stock units407 777 161 1,420 Performance stock units1,049 407 2,484 161 
TotalTotal$3,418 $3,245 $5,530 $5,771 Total$4,793 $3,418 $9,535 $5,530 
Income tax benefitIncome tax benefit$612 $514 $1,320 $881 Income tax benefit$800 $612 $1,868 $1,320 
Unrecognized stock-based compensation expense at June 30, 20222023 is presented in the table below. Unrecognized stock-based compensation expense related to performance stock units is presented assuming attainment of the maximum payout rate as set forth by the performance criteria.
Non-vested stock units$13,95415,768 
Performance stock units8,2567,029 
Total$22,21022,797 
29

Table of Contents
Note 11 - Earnings Per Common Share
Earnings per common share is computed using the two-class method as more fully described in our 20212022 Form 10-K. The following table presents a reconciliation of net income available to common shareholders, net earnings allocated to common stock and the number of shares used in the calculation of basic and diluted earnings per common share.
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Net incomeNet income$119,114 $118,068 $218,216 $234,083 Net income$162,118 $119,114 $339,771 $218,216 
Less: Preferred stock dividendsLess: Preferred stock dividends1,669 1,669 3,338 3,820 Less: Preferred stock dividends1,669 1,669 3,338 3,338 
Net income available to common shareholdersNet income available to common shareholders117,445 116,399 214,878 230,263 Net income available to common shareholders160,449 117,445 336,433 214,878 
Less: Earnings allocated to participating securitiesLess: Earnings allocated to participating securities1,036 1,141 1,888 2,307 Less: Earnings allocated to participating securities1,645 1,036 3,468 1,888 
Net earnings allocated to common stockNet earnings allocated to common stock$116,409 $115,258 $212,990 $227,956 Net earnings allocated to common stock$158,804 $116,409 $332,965 $212,990 
Distributed earnings allocated to common stockDistributed earnings allocated to common stock$48,092 $45,824 $96,143 $91,484 Distributed earnings allocated to common stock$55,783 $48,092 $111,789 $96,143 
Undistributed earnings allocated to common stockUndistributed earnings allocated to common stock68,317 69,434 116,847 136,472 Undistributed earnings allocated to common stock103,021 68,317 221,176 116,847 
Net earnings allocated to common stockNet earnings allocated to common stock$116,409 $115,258 $212,990 $227,956 Net earnings allocated to common stock$158,804 $116,409 $332,965 $212,990 
Weighted-average shares outstanding for basic earnings per common shareWeighted-average shares outstanding for basic earnings per common share64,112,828 63,606,340 64,082,185 63,457,245 Weighted-average shares outstanding for basic earnings per common share64,240,789 64,112,828 64,306,809 64,082,185 
Dilutive effect of stock compensationDilutive effect of stock compensation354,401 495,819 382,395 511,288 Dilutive effect of stock compensation187,172 354,401 225,267 382,395 
Weighted-average shares outstanding for diluted earnings per common shareWeighted-average shares outstanding for diluted earnings per common share64,467,229 64,102,159 64,464,580 63,968,533 Weighted-average shares outstanding for diluted earnings per common share64,427,961 64,467,229 64,532,076 64,464,580 
30

Table of Contents
Note 12 - Defined Benefit Plans
The components of the combined net periodic expense (benefit) for our defined benefit pension plans are presented in the table below.
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Expected return on plan assets, net of expensesExpected return on plan assets, net of expenses$(3,492)$(3,210)$(6,983)$(6,420)Expected return on plan assets, net of expenses$(2,740)$(3,492)$(5,480)$(6,983)
Interest cost on projected benefit obligationInterest cost on projected benefit obligation1,004 836 2,008 1,671 Interest cost on projected benefit obligation1,746 1,004 3,492 2,008 
Net amortization and deferralNet amortization and deferral741 1,529 1,482 3,058 Net amortization and deferral870 741 1,740 1,482 
Net periodic expense (benefit)Net periodic expense (benefit)$(1,747)$(845)$(3,493)$(1,691)Net periodic expense (benefit)$(124)$(1,747)$(248)$(3,493)
Our non-qualified defined benefit pension plan is not funded. No contributions to the qualified defined benefit pension plan were made during the six months ended June 30, 2022.2023. We do not expect to make any contributions to the qualified defined benefit plan during the remainder of 2022.2023.
Note 13 - Income Taxes
Income tax expense was as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Current income tax expense (benefit)$22,646 $14,065 $35,705 $17,790 
Current income tax expenseCurrent income tax expense$32,413 $22,646 $67,408 $35,705 
Deferred income tax expense (benefit)Deferred income tax expense (benefit)(1,972)1,016 (2,404)5,188 Deferred income tax expense (benefit)(680)(1,972)(2,489)(2,404)
Income tax expense, as reportedIncome tax expense, as reported$20,674 $15,081 $33,301 $22,978 Income tax expense, as reported$31,733 $20,674 $64,919 $33,301 
Effective tax rateEffective tax rate14.8 %11.3 %13.2 %8.9 %Effective tax rate16.4 %14.8 %16.0 %13.2 %
We had a net deferred tax asset totaling $245.9$365.4 million at June 30, 20222023 and a net deferred tax liability totaling $81.2$374.4 million at December 31, 2021.2022. No valuation allowance for deferred tax assets was recorded at June 30, 20222023 as management believes it is more likely than not that all of the deferred tax assets will be realized against deferred tax liabilities and projected future taxable income.
The effective income tax rates differed from the U.S. statutory federal income tax rates of 21% during the comparable periods primarily due to the effect of tax-exempt income from securities, loans securities and life insurance policies and the income tax effects associated with stock-based compensation.compensation, among other things. There were no unrecognized tax benefits during any of the reported periods.
30

Table of Contents
Interest and/or penalties related to income taxes are reported as a component of income tax expense. Such amounts were not significant during the reported periods.
We file income tax returns in the U.S. federal jurisdiction. We are no longer subject to U.S. federal income tax examinations by tax authorities for years before 2018.2019.

31

Table of Contents
Note 14 - Other Comprehensive Income (Loss)
The before and after tax amounts allocated to each component of other comprehensive income (loss) are presented in the following table. Reclassification adjustments related to securities available for sale are included in net gain (loss) on securities transactions in the accompanying consolidated statements of income. Reclassification adjustments related to defined-benefit post-retirement benefit plans are included in the computation of net periodic pension expense (see Note 12 – Defined Benefit Plans).
Three Months Ended
June 30, 2022
Three Months Ended
June 30, 2021
Three Months Ended
June 30, 2023
Three Months Ended
June 30, 2022
Before Tax
Amount
Tax  Expense,
(Benefit)
Net of  Tax
Amount
Before Tax
Amount
Tax  Expense,
(Benefit)
Net of  Tax
Amount
Before Tax
Amount
Tax  Expense,
(Benefit)
Net of  Tax
Amount
Before Tax
Amount
Tax  Expense,
(Benefit)
Net of  Tax
Amount
Securities available for sale and transferred securities:Securities available for sale and transferred securities:Securities available for sale and transferred securities:
Change in net unrealized gain/loss during the periodChange in net unrealized gain/loss during the period$(636,523)$(133,670)$(502,853)$30,668 $6,441 $24,227 Change in net unrealized gain/loss during the period$(206,863)$(43,441)$(163,422)$(636,523)$(133,670)$(502,853)
Change in net unrealized gain on securities transferred to held to maturityChange in net unrealized gain on securities transferred to held to maturity(189)(40)(149)(245)(52)(193)Change in net unrealized gain on securities transferred to held to maturity(162)(34)(128)(189)(40)(149)
Reclassification adjustment for net (gains) losses included in net incomeReclassification adjustment for net (gains) losses included in net income— — — — — — Reclassification adjustment for net (gains) losses included in net income(33)(7)(26)— — — 
Total securities available for sale and transferred securitiesTotal securities available for sale and transferred securities(636,712)(133,710)(503,002)30,423 6,389 24,034 Total securities available for sale and transferred securities(207,058)(43,482)(163,576)(636,712)(133,710)(503,002)
Defined-benefit post-retirement benefit plans:Defined-benefit post-retirement benefit plans:Defined-benefit post-retirement benefit plans:
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)741 155 586 1,529 321 1,208 Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)870 183 687 741 155 586 
Total defined-benefit post-retirement benefit plansTotal defined-benefit post-retirement benefit plans741 155 586 1,529 321 1,208 Total defined-benefit post-retirement benefit plans870 183 687 741 155 586 
Total other comprehensive income (loss)Total other comprehensive income (loss)$(635,971)$(133,555)$(502,416)$31,952 $6,710 $25,242 Total other comprehensive income (loss)$(206,188)$(43,299)$(162,889)$(635,971)$(133,555)$(502,416)
Six Months Ended
June 30, 2022
Six Months Ended
June 30, 2021
Six Months Ended
June 30, 2023
Six Months Ended
June 30, 2022
Before Tax
Amount
Tax  Expense,
(Benefit)
Net of  Tax
Amount
Before Tax
Amount
Tax  Expense,
(Benefit)
Net of  Tax
Amount
Before Tax
Amount
Tax  Expense,
(Benefit)
Net of  Tax
Amount
Before Tax
Amount
Tax  Expense,
(Benefit)
Net of  Tax
Amount
Securities available for sale and transferred securities:Securities available for sale and transferred securities:Securities available for sale and transferred securities:
Change in net unrealized gain/loss during the periodChange in net unrealized gain/loss during the period$(1,547,318)$(324,937)$(1,222,381)$(129,111)$(27,113)$(101,998)Change in net unrealized gain/loss during the period$53,406 $11,215 $42,191 $(1,547,318)$(324,937)$(1,222,381)
Change in net unrealized gain on securities transferred to held to maturityChange in net unrealized gain on securities transferred to held to maturity(398)(84)(314)(504)(106)(398)Change in net unrealized gain on securities transferred to held to maturity(322)(67)(255)(398)(84)(314)
Reclassification adjustment for net (gains) losses included in net incomeReclassification adjustment for net (gains) losses included in net income— — — — — — Reclassification adjustment for net (gains) losses included in net income(54)(11)(43)— — — 
Total securities available for sale and transferred securitiesTotal securities available for sale and transferred securities(1,547,716)(325,021)(1,222,695)(129,615)(27,219)(102,396)Total securities available for sale and transferred securities53,030 11,137 41,893 (1,547,716)(325,021)(1,222,695)
Defined-benefit post-retirement benefit plans:Defined-benefit post-retirement benefit plans:Defined-benefit post-retirement benefit plans:
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic expense (benefit)Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic expense (benefit)1,482 311 1,171 3,058 642 2,416 Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic expense (benefit)1,740 366 1,374 1,482 311 1,171 
Total defined-benefit post-retirement benefit plansTotal defined-benefit post-retirement benefit plans1,482 311 1,171 3,058 642 2,416 Total defined-benefit post-retirement benefit plans1,740 366 1,374 1,482 311 1,171 
Total other comprehensive income (loss)Total other comprehensive income (loss)$(1,546,234)$(324,710)$(1,221,524)$(126,557)$(26,577)$(99,980)Total other comprehensive income (loss)$54,770 $11,503 $43,267 $(1,546,234)$(324,710)$(1,221,524)
3132

Table of Contents
Activity in accumulated other comprehensive income (loss), net of tax, was as follows:
Securities
Available
For Sale
Defined
Benefit
Plans
Accumulated
Other
Comprehensive
Income
Securities
Available
For Sale
Defined
Benefit
Plans
Accumulated
Other
Comprehensive
Income
Balance January 1, 2022$380,209 $(32,891)$347,318 
Balance at January 1, 2023Balance at January 1, 2023$(1,313,791)$(34,503)$(1,348,294)
Other comprehensive income (loss) before reclassificationsOther comprehensive income (loss) before reclassifications(1,222,695)— (1,222,695)Other comprehensive income (loss) before reclassifications41,936 — 41,936 
Reclassification of amounts included in net incomeReclassification of amounts included in net income— 1,171 1,171 Reclassification of amounts included in net income(43)1,374 1,331 
Net other comprehensive income (loss) during periodNet other comprehensive income (loss) during period(1,222,695)1,171 (1,221,524)Net other comprehensive income (loss) during period41,893 1,374 43,267 
Balance at June 30, 2022$(842,486)$(31,720)$(874,206)
Balance at June 30, 2023Balance at June 30, 2023$(1,271,898)$(33,129)$(1,305,027)
Balance January 1, 2021$563,801 $(50,831)$512,970 
Balance at January 1, 2022Balance at January 1, 2022$380,209 $(32,891)$347,318 
Other comprehensive income (loss) before reclassificationsOther comprehensive income (loss) before reclassifications(102,396)— (102,396)Other comprehensive income (loss) before reclassifications(1,222,695)— (1,222,695)
Reclassification of amounts included in net incomeReclassification of amounts included in net income— 2,416 2,416 Reclassification of amounts included in net income— 1,171 1,171 
Net other comprehensive income (loss) during periodNet other comprehensive income (loss) during period(102,396)2,416 (99,980)Net other comprehensive income (loss) during period(1,222,695)1,171 (1,221,524)
Balance at June 30, 2021$461,405 $(48,415)$412,990 
Balance at June 30, 2022Balance at June 30, 2022$(842,486)$(31,720)$(874,206)

32

Table of Contents
Note 15 – Operating Segments
We are managed under a matrix organizational structure whereby our 2two primary operating segments, Banking and Frost Wealth Advisors, overlap a regional reporting structure. See our 20212022 Form 10-K for additional information regarding our operating segments. Summarized operating results by segment were as follows:
BankingFrost  Wealth
Advisors
Non-BanksConsolidated
Three months ended:
June 30, 2022
Net interest income (expense)$289,186 $958 $(1,936)$288,208 
Credit loss expense(1)— — 
Non-interest income55,397 43,054 (524)97,927 
Non-interest expense211,044 33,158 2,145 246,347 
Income (loss) before income taxes133,538 10,855 (4,605)139,788 
Income tax expense (benefit)19,821 2,279 (1,426)20,674 
Net income (loss)113,717 8,576 (3,179)119,114 
Preferred stock dividends— — 1,669 1,669 
Net income (loss) available to common shareholders$113,717 $8,576 $(4,848)$117,445 
Revenues from (expenses to) external customers$344,583 $44,012 $(2,460)$386,135 
June 30, 2021
Net interest income (expense)$258,450 $508 $(1,802)$257,156 
Credit loss expense (benefit)— — — — 
Non-interest income48,944 42,534 (231)91,247 
Non-interest expense183,109 30,014 2,131 215,254 
Income (loss) before income taxes124,285 13,028 (4,164)133,149 
Income tax expense (benefit)13,605 2,736 (1,260)15,081 
Net income (loss)110,680 10,292 (2,904)118,068 
Preferred stock dividends— — 1,669 1,669 
Net income (loss) available to common shareholders$110,680 $10,292 $(4,573)$116,399 
Revenues from (expenses to) external customers$307,394 $43,042 $(2,033)$348,403 
Six months ended:
June 30, 2022
Net interest income (expense)$539,305 $1,658 $(3,684)$537,279 
Credit loss expense (benefit)— — — — 
Non-interest income114,103 86,283 (1,069)199,317 
Non-interest expense417,582 64,068 3,429 485,079 
Income (loss) before income taxes235,826 23,873 (8,182)251,517 
Income tax expense (benefit)30,835 5,013 (2,547)33,301 
Net income (loss)204,991 18,860 (5,635)218,216 
Preferred stock dividends— — 3,338 3,338 
Net income (loss) available to common shareholders$204,991 $18,860 $(8,973)$214,878 
Revenues from (expenses to) external customers$653,408 $87,941 $(4,753)$736,596 
June 30, 2021
Net interest income (expense)$500,655 $994 $(3,612)$498,037 
Credit loss expense63 — — 63 
Non-interest income102,724 82,143 (384)184,483 
Non-interest expense362,260 59,951 3,185 425,396 
Income (loss) before income taxes241,056 23,186 (7,181)257,061 
Income tax expense (benefit)20,782 4,869 (2,673)22,978 
Net income (loss)220,274 18,317 (4,508)234,083 
Preferred stock dividends— — 3,820 3,820 
Net income (loss) available to common shareholders$220,274 $18,317 $(8,328)$230,263 
Revenues from (expenses to) external customers$603,379 $83,137 $(3,996)$682,520 

BankingFrost  Wealth
Advisors
Non-BanksConsolidated
Three months ended:
June 30, 2023
Net interest income (expense)$385,720 $2,090 $(2,544)$385,266 
Credit loss expense9,901 — — 9,901 
Non-interest income57,808 46,147 (427)103,528 
Non-interest expense246,927 35,558 2,557 285,042 
Income (loss) before income taxes186,700 12,679 (5,528)193,851 
Income tax expense (benefit)30,636 2,663 (1,566)31,733 
Net income (loss)156,064 10,016 (3,962)162,118 
Preferred stock dividends— — 1,669 1,669 
Net income (loss) available to common shareholders$156,064 $10,016 $(5,631)$160,449 
Revenues from (expenses to) external customers$443,528 $48,237 $(2,971)$488,794 
June 30, 2022
Net interest income (expense)$289,186 $958 $(1,936)$288,208 
Credit loss expense (benefit)(1)— — 
Non-interest income55,397 43,054 (524)97,927 
Non-interest expense211,044 33,158 2,145 246,347 
Income (loss) before income taxes133,538 10,855 (4,605)139,788 
Income tax expense (benefit)19,821 2,279 (1,426)20,674 
Net income (loss)113,717 8,576 (3,179)119,114 
Preferred stock dividends— — 1,669 1,669 
Net income (loss) available to common shareholders$113,717 $8,576 $(4,848)$117,445 
Revenues from (expenses to) external customers$344,583 $44,012 $(2,460)$386,135 
33

Table of Contents
BankingFrost  Wealth
Advisors
Non-BanksConsolidated
Six months ended:
June 30, 2023
Net interest income (expense)$785,857 $3,744 $(4,515)$785,086 
Credit loss expense (benefit)19,003 — 19,005 
Non-interest income121,451 88,185 (843)208,793 
Non-interest expense496,794 69,505 3,885 570,184 
Income (loss) before income taxes391,511 22,422 (9,243)404,690 
Income tax expense (benefit)62,754 4,709 (2,544)64,919 
Net income (loss)328,757 17,713 (6,699)339,771 
Preferred stock dividends— — 3,338 3,338 
Net income (loss) available to common shareholders$328,757 $17,713 $(10,037)$336,433 
Revenues from (expenses to) external customers$907,308 $91,929 $(5,358)$993,879 
June 30, 2022
Net interest income (expense)$539,305 $1,658 $(3,684)$537,279 
Credit loss expense— — — — 
Non-interest income114,103 86,283 (1,069)199,317 
Non-interest expense417,582 64,068 3,429 485,079 
Income (loss) before income taxes235,826 23,873 (8,182)251,517 
Income tax expense (benefit)30,835 5,013 (2,547)33,301 
Net income (loss)204,991 18,860 (5,635)218,216 
Preferred stock dividends— — 3,338 3,338 
Net income (loss) available to common shareholders$204,991 $18,860 $(8,973)$214,878 
Revenues from (expenses to) external customers$653,408 $87,941 $(4,753)$736,596 

34

Table of Contents
Note 16 – Fair Value Measurements
The fair value of an asset or liability is the price that would be received to sell that asset or paid to transfer that liability in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. In estimating fair value, we utilize valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC Topic 820 establishes a three-level fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. See our 20212022 Form 10-K for additional information regarding the fair value hierarchy and a description of our valuation techniques.
Financial Assets and Financial Liabilities. The tables below summarize financial assets and financial liabilities measured at fair value on a recurring basis as of June 30, 20222023 and December 31, 2021,2022, segregated by the level of the valuation inputs within the fair value hierarchy of ASC Topic 820 utilized to measure fair value.
Level 1 InputsLevel 2 InputsLevel 3 InputsTotal Fair ValueLevel 1 InputsLevel 2 InputsLevel 3 InputsTotal Fair Value
June 30, 2022
June 30, 2023June 30, 2023
Securities available for sale:Securities available for sale:
U.S. TreasuryU.S. Treasury$5,072,888 $— $— $5,072,888 
Residential mortgage-backed securitiesResidential mortgage-backed securities— 6,792,775 — 6,792,775 
States and political subdivisionsStates and political subdivisions— 5,341,016 — 5,341,016 
OtherOther— 42,578 — 42,578 
Trading account securities:Trading account securities:
U.S. TreasuryU.S. Treasury27,546 — — 27,546 
States and political subdivisionsStates and political subdivisions— 4,971 — 4,971 
Derivative assets:Derivative assets:
Interest rate swaps, caps and floorsInterest rate swaps, caps and floors— 94,362 — 94,362 
Commodity swaps and optionsCommodity swaps and options— 65,814 — 65,814 
Derivative liabilities:Derivative liabilities:
Interest rate swaps, caps and floorsInterest rate swaps, caps and floors— 94,291 — 94,291 
Commodity swaps and optionsCommodity swaps and options— 64,802 — 64,802 
December 31, 2022December 31, 2022
Securities available for sale:Securities available for sale:Securities available for sale:
U.S. TreasuryU.S. Treasury$4,416,299 $— $— $4,416,299 U.S. Treasury$5,051,587 $— $— $5,051,587 
Residential mortgage-backed securitiesResidential mortgage-backed securities— 5,335,725 — 5,335,725 Residential mortgage-backed securities— 6,376,236 — 6,376,236 
States and political subdivisionsStates and political subdivisions— 6,987,296 — 6,987,296 States and political subdivisions— 6,773,355 — 6,773,355 
OtherOther— 42,365 — 42,365 Other— 42,427 — 42,427 
Trading account securities:Trading account securities:Trading account securities:
U.S. TreasuryU.S. Treasury24,615 — — 24,615 U.S. Treasury25,879 — — 25,879 
States and political subdivisionsStates and political subdivisions— 65 — 65 States and political subdivisions— 2,166 — 2,166 
Derivative assets:Derivative assets:Derivative assets:
Interest rate swaps, caps and floorsInterest rate swaps, caps and floors— 41,485 — 41,485 Interest rate swaps, caps and floors— 86,793 — 86,793 
Commodity swaps and optionsCommodity swaps and options— 245,218 — 245,218 Commodity swaps and options— 106,685 — 106,685 
Foreign currency forward contractsForeign currency forward contracts199 — — 199 Foreign currency forward contracts11 — — 11 
Derivative liabilities:Derivative liabilities:Derivative liabilities:
Interest rate swaps, caps and floorsInterest rate swaps, caps and floors— 58,240 — 58,240 Interest rate swaps, caps and floors— 95,533 — 95,533 
Commodity swaps and optionsCommodity swaps and options— 243,638 — 243,638 Commodity swaps and options— 105,392 — 105,392 
Foreign currency forward contractsForeign currency forward contracts195 — — 195 Foreign currency forward contracts11 — — 11 
December 31, 2021
Securities available for sale:
U.S. Treasury$2,179,433 $— $— $2,179,433 
Residential mortgage-backed securities— 4,066,265 — 4,066,265 
States and political subdivisions— 7,636,571 — 7,636,571 
Other— 42,359 — 42,359 
Trading account securities:
U.S. Treasury24,237 — — 24,237 
States and political subdivisions— 925 — 925 
Derivative assets:
Interest rate swaps, caps and floors— 44,310 — 44,310 
Commodity swaps and options— 114,757 — 114,757 
Foreign currency forward contracts33 — — 33 
Derivative liabilities:
Interest rate swaps, caps and floors— 25,261 — 25,261 
Commodity swaps and options— 113,261 — 113,261 
Foreign currency forward contracts55 — — 55 

3435

Table of Contents
Certain financial assets and financial liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances. Financial assets measured at fair value on a non-recurring basis during the reported periods include certain collateral dependent loans reported at the fair value of the underlying collateral if repayment is expected solely from the collateral.
The following table presents collateral dependent loans that were remeasured and reported at fair value through a specific allocation of the allowance for credit losses on loans based upon the fair value of the underlying collateral during the reported periods.
Six Months Ended
June 30, 2022
Six Months Ended
June 30, 2021
Six Months Ended
June 30, 2023
Six Months Ended
June 30, 2022
Level 2Level 3Level 2Level 3Level 2Level 3Level 2Level 3
Carrying value before allocationsCarrying value before allocations$5,454 $3,614 $3,399 $19,423 Carrying value before allocations$19,064 $20,171 $5,454 $3,614 
Specific (allocations) reversals of prior allocationsSpecific (allocations) reversals of prior allocations(1,327)6,877 (336)(3,273)Specific (allocations) reversals of prior allocations(1,300)(2,100)(1,327)6,877 
Fair valueFair value$4,127 $10,491 $3,063 $16,150 Fair value$17,764 $18,071 $4,127 $10,491 
Non-Financial Assets and Non-Financial Liabilities. We do not have any non-financial assets or non-financial liabilities measured at fair value on a recurring basis. From time to time, non-financial assets measured at fair value on a non-recurring basis may include certain foreclosed assets which, upon initial recognition, were remeasured and reported at fair value through a charge-off to the allowance for loan losses and certain foreclosed assets which, subsequent to their initial recognition, were remeasured at fair value through a write-down included in other non-interest expense. There were no such fair value measurements during the reported periods.
Financial Instruments Reported at Amortized Cost. The estimated fair values of financial instruments that are reported at amortized cost in our consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, were as follows:
June 30, 2022December 31, 2021June 30, 2023December 31, 2022
Carrying
Amount
Estimated
Fair Value
Carrying
Amount
Estimated
Fair Value
Carrying
Amount
Estimated
Fair Value
Carrying
Amount
Estimated
Fair Value
Financial assets:Financial assets:Financial assets:
Level 2 inputs:Level 2 inputs:Level 2 inputs:
Cash and cash equivalentsCash and cash equivalents$13,658,585 $13,658,585 $16,583,000 $16,583,000 Cash and cash equivalents$7,107,336 $7,107,336 $12,028,132 $12,028,132 
Securities held to maturitySecurities held to maturity1,946,428 1,828,515 1,749,179 1,809,143 Securities held to maturity3,691,220 3,543,929 2,639,083 2,467,865 
Cash surrender value of life insurance policiesCash surrender value of life insurance policies189,823 189,823 190,139 190,139 Cash surrender value of life insurance policies190,575 190,575 190,188 190,188 
Accrued interest receivableAccrued interest receivable194,049 194,049 179,111 179,111 Accrued interest receivable236,967 236,967 243,682 243,682 
Level 3 inputs:Level 3 inputs:Level 3 inputs:
Loans, netLoans, net16,496,394 16,126,497 16,087,731 16,079,454 Loans, net17,512,692 16,933,702 16,927,348 16,343,417 
Financial liabilities:Financial liabilities:Financial liabilities:
Level 2 inputs:Level 2 inputs:Level 2 inputs:
DepositsDeposits45,601,765 45,584,113 42,695,696 41,343,426 Deposits40,700,830 40,683,556 43,954,196 43,920,741 
Federal funds purchasedFederal funds purchased43,200 43,200 25,925 25,925 Federal funds purchased13,525 13,525 51,650 51,650 
Repurchase agreementsRepurchase agreements1,664,685 1,664,685 2,740,799 2,740,799 Repurchase agreements3,569,870 3,569,870 4,660,641 4,660,641 
Junior subordinated deferrable interest debenturesJunior subordinated deferrable interest debentures123,040 123,712 123,011 123,712 Junior subordinated deferrable interest debentures123,098 123,712 123,069 123,712 
Subordinated notesSubordinated notes99,256 99,626 99,178 111,430 Subordinated notes99,413 94,571 99,335 97,014 
Accrued interest payableAccrued interest payable6,059 6,059 3,026 3,026 Accrued interest payable40,523 40,523 18,444 18,444 
Under ASC Topic 825, entities may choose to measure eligible financial instruments at fair value at specified election dates. The fair value measurement option (i) may be applied instrument by instrument, with certain exceptions, (ii) is generally irrevocable and (iii) is applied only to entire instruments and not to portions of instruments. Unrealized gains and losses on items for which the fair value measurement option has been elected must be reported in earnings at each subsequent reporting date. During the reported periods, we had no financial instruments measured at fair value under the fair value measurement option.

3536

Table of Contents
Note 17 - Accounting Standards Updates
Information about certain recently issued accounting standards updates is presented below. Also refer to Note 20 - Accounting Standards Updates in our 20212022 Form 10-K for additional information related to previously issued accounting standards updates.
ASU 2022-01, “Derivatives and Hedging (Topic 815): Fair Value Hedging - Portfolio Layer Method.” Under prior guidance, entities can apply the last-of-layer hedging method to hedge the exposure of a closed portfolio of prepayable financial assets to fair value changes due to changes in interest rates for a portion of the portfolio that is not expected to be affected by prepayments, defaults, and other events affecting the timing and amount of cash flows. ASU 2022-01 expands the last-of-layer method, which permits only one hedge layer, to allow multiple hedged layers of a single closed portfolio. To reflect that expansion, the last-of-layer method is renamed the portfolio layer method. ASU 2022-01 also (i) expands the scope of the portfolio layer method to include non-prepayable financial assets, (ii) specifies eligible hedging instruments in a single-layer hedge, (iii) provides additional guidance on the accounting for and disclosure of hedge basis adjustments under the portfolio layer method and (iv) specifies how hedge basis adjustments should be considered when determining credit losses for the assets included in the closed portfolio. ASU 2022-01 will be effective for us on January 1, 2023 though early adoption is permitted. The adoption of ASU 2022-01 is not expected to have a significant impact on our financial statements.
ASU 2022-02, “Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures.” ASU 2022-02 eliminates the accounting guidance for troubled debt restructurings in Accounting Standards Codification (“ASC”) Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors, while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. Additionally, ASU 2022-02 requires entities to disclose current-period gross write-offs by year of origination for financing receivables and net investments in leases within the scope of ASC Subtopic 3126-20, Financial Instruments - Credit Losses - Measured at Amortized Cost. ASU 2022-02 will bebecame effective for us on January 1, 2023 though early adoption is permitted. The adoption of ASU 2022-02 is not expected to have a significant impact on our2023. See Note 3 - Loans for the new financial statements.statement disclosures applicable under this update.
ASU 2022-03, “Fair Value Measurement2023-01, “Leases (Topic 820)842): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions.Common Control Arrangements. ASU 2022-03 clarifies that a contractual restriction on2023-01 requires entities to amortize leasehold improvements associated with common control leases over the sale of an equity security is not considered part ofuseful life to the unit of account of the equity securitycommon control group. ASU 2023-01 also provides certain practical expedients applicable to private companies and therefore, is not considered in measuring fair value.not-for-profit organizations. ASU 2022-03 also clarifies that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction and requires certain new disclosures for equity securities subject to contractual sale restrictions. ASU 2022-032023-01 will be effective for us on January 1, 2024, though early adoption is permitted. Thepermitted, and its adoption of ASU 2022-03 is not expected to have a significant effect on our financial statements.
ASU No. 2023-02, “Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method.” ASU 2023-02 is intended to improve the accounting and disclosures for investments in tax credit structures. ASU 2023-02 allows entities to elect to account for qualifying tax equity investments using the proportional amortization method, regardless of the program giving rise to the related income tax credits. Previously, this method was only available for qualifying tax equity investments in low-income housing tax credit structures. ASU 2023-02 will be effective for us on January 1, 2024, though early adoption is permitted, and its adoption is not expected to have a significant effect on our financial statements.
ASU No. 2023-03, “Presentation of Financial Statements (Topic 205), Income Statement—Reporting Comprehensive Income (Topic 220), Distinguishing Liabilities from Equity (Topic 480), Equity (Topic 505), and Compensation—Stock Compensation (Topic 718): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 120, SEC Staff Announcement at the March 24, 2022 EITF Meeting, and Staff Accounting Bulletin Topic 6.B, Accounting Series Release 280—General Revision of Regulation S-X: Income or Loss Applicable to Common Stock.” ASU 2023-03 amends the ASC for SEC updates pursuant to SEC Staff Accounting Bulletin No. 120; SEC Staff Announcement at the March 24, 2022 Emerging Issues Task Force (“EITF”) Meeting; and Staff Accounting Bulletin Topic 6.B, Accounting Series Release 280 - General Revision of Regulation S-X: Income or Loss Applicable to Common Stock. These updates were immediately effective and did not have a significant impact on our financial statements.
3637

Table of Contents
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Financial Review
Cullen/Frost Bankers, Inc.
The following discussion should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2021,2022, and the other information included in the 20212022 Form 10-K. Operating results for the three and six months ended June 30, 20222023 are not necessarily indicative of the results for the year ending December 31, 20222023 or any future period.
Dollar amounts in tables are stated in thousands, except for per share amounts.
Forward-Looking Statements and Factors that Could Affect Future Results
Certain statements contained in this Quarterly Report on Form 10-Q that are not statements of historical fact constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 (the “Act”), including statements regarding the potential effects of the ongoing COVID-19 pandemic on our business, financial condition, liquidity and results of operations, notwithstanding that such statements are not specifically identified as such. In addition, certain statements may be contained in our future filings with the SEC, in press releases, and in oral and written statements made by us or with our approval that are not statements of historical fact and constitute forward-looking statements within the meaning of the Act. Examples of forward-looking statements include, but are not limited to: (i) projections of revenues, expenses, income or loss, earnings or loss per share, the payment or nonpayment of dividends, capital structure and other financial items; (ii) statements of plans, objectives and expectations of Cullen/Frost or its management or Board of Directors, including those relating to products, services or operations; (iii) statements of future economic performance; and (iv) statements of assumptions underlying such statements. Words such as “believes”, “anticipates”, “expects”, “intends”, “targeted”, “continue”, “remain”, “will”, “should”, “may” and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements.
Forward-looking statements involve risks and uncertainties that may cause actual results to differ materially from those in such statements. Factors that could cause actual results to differ from those discussed in the forward-looking statements include, but are not limited to:
Local, regional, national and international economic conditions and the impact they may have on us and our customers and our assessment of that impact.
Volatility and disruption in national and international financial and commodity markets.
Government intervention in the U.S. financial system.
Changes in the mix of loan geographies, sectors and types or the level of non-performing assets and charge-offs.
Changes in estimates of future reserve requirements based upon the periodic review thereof under relevant regulatory and accounting requirements.
The effects of and changes in trade and monetary and fiscal policies and laws, including the interest rate policies of the Federal Reserve Board.
Inflation, interest rate, securities market and monetary fluctuations.
The effect of changes in lawsLocal, regional, national and regulations (including lawsinternational economic conditions and regulations concerning taxes, banking, securities and insurance) and their application with which wethe impact they may have on us and our subsidiaries must comply.customers and our assessment of that impact.
The soundnessChanges in the financial performance and/or condition of other financial institutions.our borrowers.
Political instability.Changes in the mix of loan geographies, sectors and types or the level of non-performing assets and charge-offs.
Changes in estimates of future credit loss reserve requirements based upon the periodic review thereof under relevant regulatory and accounting requirements.
Changes in our liquidity position.
Impairment of our goodwill or other intangible assets.
Acts of God or of war or terrorism.
The potential impact of climate change.
The timely development and acceptance of new products and services and perceived overall value of these products and services by users.
Changes in consumer spending, borrowing and saving habits.
Changes inGreater than expected costs or difficulties related to the financial performance and/or conditionintegration of our borrowers.new products and lines of business.
Technological changes.
The cost and effects of cyber incidents or other failures, interruptions or security breaches of our systems or those of our customers or third-party providers.
Acquisitions and integration of acquired businesses.
Changes in the reliability of our vendors, internal control systems or information systems.
Our ability to increase market share and control expenses.
Our ability to attract and retain qualified employees.
Changes in our organization, compensation and benefit plans.
The soundness of other financial institutions.
Volatility and disruption in national and international financial and commodity markets.
Changes in the competitive environment in our markets and among banking organizations and other financial service providers.
Government intervention in the U.S. financial system.
Political or economic instability.
Acts of God or of war or terrorism.
37
38

Table of Contents
The effectpotential impact of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and other accounting standard setters.
Changes in the reliability of our vendors, internal control systems or information systems.
Changes in our liquidity position.
Changes in our organization, compensation and benefit plans.climate change.
The impact of the ongoing COVID-19 pandemic andpandemics, epidemics or any other pandemic, epidemic or health-related crisis.
The costs and effects of legal and regulatory developments, the resolution of legal proceedings or regulatory or other governmental inquiries, the results of regulatory examinations or reviews and the ability to obtain required regulatory approvals.
Greater than expected costs or difficulties related toThe effect of changes in laws and regulations (including laws and regulations concerning taxes, banking, securities and insurance) and their application with which we and our subsidiaries must comply.
The effect of changes in accounting policies and practices, as may be adopted by the integration of new productsregulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and lines of business.other accounting standard setters.
Our success at managing the risks involved in the foregoing items.
In addition, financial markets and global supply chains may continue to be adversely affected by the current or anticipated impact of military conflict, including the current Russian invasion of Ukraine terrorism or other geopolitical events.
Further, statements about the potential effects of the ongoing COVID-19 pandemic on our business, financial condition, liquidity and results of operations may constitute forward-looking statements and are subject to the risk that the actual effects may differ, possibly materially, from what is reflected in those forward-looking statements due to factors and future developments that are uncertain, unpredictable and in many cases beyond our control, including the scope and duration of the pandemic, actions taken by governmental authorities in response to the pandemic, and the direct and indirect impact of the pandemic on our customers, clients, third parties and us.
Forward-looking statements speak only as of the date on which such statements are made. We do not undertake any obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made, or to reflect the occurrence of unanticipated events.
COVID-19 Effects and Actions
Our business has been, and continues to be, impacted by the effects of the COVID-19 pandemic. There remains many uncertainties related to COVID-19 including, among other things, the ongoing impact to our customers, employees and vendors; the impact to the financial services and banking industry; and the impact to the economy as a whole as well as the effect of actions taken, or that may yet be taken, or inaction by governmental authorities to mitigate both the economic and health-related effects of COVID-19. Refer to our 2021 Form 10-K for further information regarding (i) the impact of the COVID-19 pandemic on our operations and our results thereof, as well as the impact on our financial position and (ii) legislative and regulatory actions taken related to the COVID-19 pandemic, particularly as they relate to the banking and financial services industry.
Application of Critical Accounting Policies and Accounting Estimates
We follow accounting and reporting policies that conform, in all material respects, to accounting principles generally accepted in the United States and to general practices within the financial services industry. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. While we base estimates on historical experience, current information and other factors deemed to be relevant, actual results could differ from those estimates.
We consider accounting estimates to be critical to reported financial results if (i) the accounting estimate requires management to make assumptions about matters that are highly uncertain and (ii) different estimates that management reasonably could have used for the accounting estimate in the current period, or changes in the accounting estimate that are reasonably likely to occur from period to period, could have a material impact on our financial statements.
Accounting policies related to the allowance for credit losses on financial instruments including loans and off-balance-sheet credit exposures are considered to be critical as these policies involve considerable subjective judgment and estimation by management. In the case of loans, the allowance for credit losses is a contra-asset valuation account, calculated in accordance with Accounting Standards Codification (“ASC”) Topic 326 (“ASC 326”) Financial Instruments - Credit Losses, that is deducted from the amortized cost basis of loans to present the net amount expected to be collected. In the case of off-balance-sheet credit exposures, the allowance for credit losses is a liability account, calculated in accordance with ASC 326, reported as a component of accrued interest payable and other liabilities in our consolidated balance sheets. The amount of each allowance account represents management's best estimate of current expected credit losses on these financial instruments considering available information, from internal and external sources, relevant to assessing exposure to credit loss over the contractual term
38

Table of Contents
of the instrument. Relevant available information includes historical credit loss experience, current conditions and reasonable and supportable forecasts. While historical credit loss experience provides the basis for the estimation of expected credit losses, adjustments to historical loss information may be made for differences in current portfolio-specific risk characteristics, environmental conditions or other relevant factors. While management utilizes its best judgment and information available, the ultimate adequacy of our allowance accounts is dependent upon a variety of factors beyond our control, including the performance of our portfolios, the economy, changes in interest rates and the view of the regulatory authorities toward classification of assets. Refer to the 20212022 Form 10-K for additional information regarding critical accounting policies.
Overview
A discussion of our results of operations is presented below. Certain reclassifications have been made to make prior periods comparable. Taxable-equivalent adjustments are the result of increasing income from tax-free loans and investments by an amount equal to the taxes that would be paid if the income were fully taxable based on a 21% federal tax rate, thus making tax-exempt yields comparable to taxable asset yields.
39

Table of Contents
Results of Operations
Net income available to common shareholders totaled $160.4 million, or $2.47 per diluted common share, and $336.4 million, or $5.17 per diluted common share, for the three and six months ended June 30, 2023 compared to $117.4 million, or $1.81 per diluted common share, and $214.9 million, or $3.31 per diluted common share for the three and six months ended June 30, 2022 compared to $116.4 million, or $1.80 per diluted common share, and $230.3 million, or $3.57 per diluted common share for the three and six months ended June 30, 2021.2022.
Selected data for the comparable periods was as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Taxable-equivalent net interest incomeTaxable-equivalent net interest income$311,377 $279,997 $583,572 $543,946 Taxable-equivalent net interest income$408,594 $311,377 $834,438 $583,572 
Taxable-equivalent adjustmentTaxable-equivalent adjustment23,169 22,841 46,293 45,909 Taxable-equivalent adjustment23,328 23,169 49,352 46,293 
Net interest incomeNet interest income288,208 257,156 537,279 498,037 Net interest income385,266 288,208 785,086 537,279 
Credit loss expenseCredit loss expense— — — 63 Credit loss expense9,901 — 19,005 — 
Net interest income after credit loss expenseNet interest income after credit loss expense288,208 257,156 537,279 497,974 Net interest income after credit loss expense375,365 288,208 766,081 537,279 
Non-interest incomeNon-interest income97,927 91,247 199,317 184,483 Non-interest income103,528 97,927 208,793 199,317 
Non-interest expenseNon-interest expense246,347 215,254 485,079 425,396 Non-interest expense285,042 246,347 570,184 485,079 
Income before income taxesIncome before income taxes139,788 133,149 251,517 257,061 Income before income taxes193,851 139,788 404,690 251,517 
Income taxesIncome taxes20,674 15,081 33,301 22,978 Income taxes31,733 20,674 64,919 33,301 
Net incomeNet income119,114 118,068 218,216 234,083 Net income162,118 119,114 339,771 218,216 
Preferred stock dividendsPreferred stock dividends1,669 1,669 3,338 3,820 Preferred stock dividends1,669 1,669 3,338 3,338 
Net income available to common shareholdersNet income available to common shareholders$117,445 $116,399 $214,878 $230,263 Net income available to common shareholders$160,449 $117,445 $336,433 $214,878 
Earnings per common share – basicEarnings per common share – basic$1.82 $1.81 $3.32 $3.59 Earnings per common share – basic$2.47 $1.82 $5.18 $3.32 
Earnings per common share – dilutedEarnings per common share – diluted1.81 1.80 3.31 3.57 Earnings per common share – diluted2.47 1.81 5.17 3.31 
Dividends per common shareDividends per common share0.75 0.72 1.50 1.44 Dividends per common share0.87 0.75 1.74 1.50 
Return on average assetsReturn on average assets0.92 %1.02 %0.85 %1.05 %Return on average assets1.30 %0.92 %1.35 %0.85 %
Return on average common equityReturn on average common equity13.88 11.18 11.53 11.16 Return on average common equity19.36 13.88 20.92 11.53 
Average shareholders’ equity to average assetsAverage shareholders’ equity to average assets6.93 9.46 7.70 9.77 Average shareholders’ equity to average assets7.04 6.93 6.73 7.70 
Net income available to common shareholders increased $1.0$43.0 million, or 0.9%36.6%, for the three months ended June 30, 20222023 and decreased $15.4increased $121.6 million, or 6.7%56.6%, for the six months ended June 30, 20222023 compared to the same periods in 2021.2022. The increase during the three months ended June 30, 20222023 was primarily the result of a $31.1$97.1 million increase in net interest income and a $6.7$5.6 million increase in non-interest income partly offset by a $31.1$38.7 million increase in non-interest expense, and a $5.6an $11.1 million increase in income tax expense and a $9.9 million increase in credit loss expense. The decreaseincrease during the six months ended June 30, 20222023 was primarily the result of a $59.7 million increase in non-interest expense and a $10.3 million increase in income tax expense partly offset by a $39.2$247.8 million increase in net interest income and a $14.8$9.5 million increase in non-interest income.income partly offset by a $85.1 million increase in non-interest expense, a $31.6 million increase in income tax expense and a $19.0 million increase in credit loss expense. Details of the changes in the various components of net income are further discussed below.
3940

Table of Contents
Net Interest Income
Net interest income is the difference between interest income on earning assets, such as loans and securities, and interest expense on liabilities, such as deposits and borrowings, which are used to fund those assets. Net interest income is our largest source of revenue, representing 72.9%79.0% of total revenue during the first six months of 2022.2023. Net interest margin is the ratio of taxable-equivalent net interest income to average earning assets for the period. The level of interest rates and the volume and mix of earning assets and interest-bearing liabilities impact net interest income and net interest margin.
The Federal Reserve influences the general market rates of interest, including the deposit and loan rates offered by many financial institutions. As of June 30, 2022,2023, approximately 42.0%43.7% of our loans had a fixed interest rate, while the remaining loans had floating interest rates that were primarily tied to the prime interest rate (approximately 29.2%25.2%); or the London Interbank Offered Rate (“LIBOR”) (approximately 17.0%). We discontinued originating LIBOR-based loans effective December 31, 2021 and have begun to negotiate loans using our preferred replacement index, the American Interbank Offered Rate (“AMERIBOR”), a benchmark developed by the American Financial Exchange, the Secured Overnight Financing Rate (“SOFR”) (approximately 22.5%); or the American Interbank Offered Rate (“AMERIBOR”) (approximately 8.2%). Certain other loans are tied to a benchmark developed by Bloomberg Index Services (“BSBY”). As or other indices, however, such loans do not make up a significant portion of our loan portfolio as of June 30, 2022, approximately 11.7% of loans were tied to one of these indexes. For our currently outstanding LIBOR-based loans, the timing and manner in which each customer’s contract transitions from LIBOR to another rate will vary on a case-by-case basis. Our goal is to complete all transitions by the first quarter of 2023.
Select average market rates for the periods indicated are presented in the table below.
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Federal funds target rate upper boundFederal funds target rate upper bound0.95 %0.25 %0.62 %0.25 %Federal funds target rate upper bound5.16 %0.95 %4.93 %0.62 %
Effective federal funds rateEffective federal funds rate0.77 0.07 0.45 0.07 Effective federal funds rate4.99 0.77 4.75 0.45 
Interest on reserve balances0.84 0.11 0.52 0.10 
Interest on reserve balances at the Federal ReserveInterest on reserve balances at the Federal Reserve5.06 0.84 4.82 0.52 
PrimePrime3.95 3.25 3.62 3.25 Prime8.16 3.95 7.92 3.62 
1-Month LIBOR1.00 0.10 0.61 0.11 
3-Month LIBOR1.51 0.16 1.01 0.18 
AMERIBOR Term-30(1)
AMERIBOR Term-30(1)
0.87 0.09 0.53 0.11 
AMERIBOR Term-30(1)
5.05 0.87 4.82 0.53 
AMERIBOR Term-90(1)
AMERIBOR Term-90(1)
1.42 0.15 0.97 0.17 
AMERIBOR Term-90(1)
5.34 1.42 5.11 0.97 
1-Month Term SOFR(2)
1-Month Term SOFR(2)
0.92 0.02 0.54 0.03 
1-Month Term SOFR(2)
5.04 0.92 4.82 0.54 
3-Month Term SOFR(2)
3-Month Term SOFR(2)
1.31 0.03 0.82 0.04 
3-Month Term SOFR(2)
5.12 1.31 4.95 0.82 
Bloomberg 1-Month Short-Term Bank Yield IndexBloomberg 1-Month Short-Term Bank Yield Index0.87 0.07 0.52 0.08 Bloomberg 1-Month Short-Term Bank Yield Index5.08 0.87 4.83 0.52 
Bloomberg 3-Month Short-Term Bank Yield IndexBloomberg 3-Month Short-Term Bank Yield Index1.41 0.12 0.94 0.14 Bloomberg 3-Month Short-Term Bank Yield Index5.31 1.41 5.07 0.94 
1-Month LIBOR(3)
1-Month LIBOR(3)
5.09 1.00 4.85 0.61 
3-Month LIBOR(3)
3-Month LIBOR(3)
5.39 1.51 5.15 1.01 
____________________
(1)AMERIBOR Term-30 and AMERIBOR Term-90 are published by the American Financial Exchange.
(2)1-Month TERMTerm SOFR and 3-Month Term SOFR market data are the property of Chicago Mercantile Exchange, Inc. or its licensors as applicable. All rights reserved, or otherwise licensed by Chicago Mercantile Exchange, Inc.
Effective July 28, 2022, the Federal Reserve increased(3)1-Month and 3-Month LIBOR ceased to be published effective June 30, 2023.
As of June 30, 2023, the target range for the federal funds rate was 5.00% to 2.25%5.25%. In June 2023, the Federal Reserve released projections whereby the midpoint of the projected appropriate target range for the federal funds rate would rise to 2.50%5.6% by the end of 2023 and statedsubsequently decrease to 4.6% by the end of 2024. While there can be no such assurance that they anticipate on-goingany increases or decreases in the federal funds rate will occur, these projections imply up to a 50 basis point increase in the federal funds rate during the remainder of 2023, followed by a 100 basis point decrease in 2024. The target range will be appropriate. Additionally,for the interestfederal funds rate paid on reserve balances was increased 25 basis points to 2.40%.5.25% to 5.50% effective July 27, 2023.
We are primarily funded by core deposits, with non-interest-bearing demand deposits historically being a significant source of funds. This lower-cost funding base is expected to have a positive impact on our net interest income and net interest margin in a rising interest rate environment. Nonetheless, our access to and pricing of deposits may be negatively impacted by, among other factors, periods of higher interest rates which could promote increased competition for deposits, including from new financial technology competitors, or provide customers with alternative investment options. See Item 3. Quantitative and Qualitative Disclosures About Market Risk elsewhere in this report for information about our sensitivity to interest rates. Further analysis of the components of our net interest margin is presented below.
4041

Table of Contents
The following tables present an analysis of net interest income and net interest spread for the periods indicated, including average outstanding balances for each major category of interest-earning assets and interest-bearing liabilities, the interest earned or paid on such amounts, and the average rate earned or paid on such assets or liabilities, respectively. The tables also set forth the net interest margin on average total interest-earning assets for the same periods. For these computations: (i) average balances are presented on a daily average basis, (ii) information is shown on a taxable-equivalent basis assuming a 21% tax rate, (iii) average loans include loans on non-accrual status, and (iv) average securities include unrealized gains and losses on securities available for sale, while yields are based on average amortized cost.
Quarter To DateQuarter To DateQuarter To DateQuarter To Date
June 30, 2022June 30, 2021June 30, 2023June 30, 2022
Average
Balance
Interest
Income/
Expense
Yield/
Cost
Average
Balance
Interest
Income/
Expense
Yield/
Cost
Average
Balance
Interest
Income/
Expense
Yield/
Cost
Average
Balance
Interest
Income/
Expense
Yield/
Cost
Assets:Assets:Assets:
Interest-bearing depositsInterest-bearing deposits$13,040,852 $26,371 0.80 %$13,346,885 $3,614 0.11 %Interest-bearing deposits$6,879,997 $87,748 5.05 %$13,040,852 $26,371 0.80 %
Federal funds soldFederal funds sold31,173 99 1.26 21,390 0.15 Federal funds sold22,549 305 5.35 31,173 99 1.26 
Resell agreementsResell agreements3,027 10 1.32 7,905 0.20 Resell agreements84,767 1,126 5.26 3,027 10 1.32 
Securities:Securities:Securities:
TaxableTaxable10,327,627 56,365 2.04 4,168,034 20,602 2.01 Taxable13,781,300 101,960 2.71 10,327,627 56,365 2.04 
Tax-exemptTax-exempt7,802,864 79,001 4.04 8,125,745 77,801 4.09 Tax-exempt7,496,547 81,889 4.27 7,802,864 79,001 4.04 
Total securitiesTotal securities18,130,491 135,366 2.87 12,293,779 98,403 3.36 Total securities21,277,847 183,849 3.24 18,130,491 135,366 2.87 
Loans, net of unearned discountsLoans, net of unearned discounts16,674,489 167,925 4.04 17,246,389 183,846 4.28 Loans, net of unearned discounts17,664,254 292,628 6.64 16,674,489 167,925 4.04 
Total Earning Assets and Average Rate EarnedTotal Earning Assets and Average Rate Earned47,880,032 329,771 2.71 42,916,348 285,875 2.71 Total Earning Assets and Average Rate Earned45,929,414 565,656 4.77 47,880,032 329,771 2.71 
Cash and due from banksCash and due from banks646,121 529,447 Cash and due from banks627,991 646,121 
Allowance for credit losses on loans and securitiesAllowance for credit losses on loans and securities(246,976)(262,389)Allowance for credit losses on loans and securities(233,156)(246,976)
Premises and equipment, netPremises and equipment, net1,049,494 1,040,400 Premises and equipment, net1,143,809 1,049,494 
Accrued interest and other assetsAccrued interest and other assets1,758,932 1,441,264 Accrued interest and other assets1,849,438 1,758,932 
Total AssetsTotal Assets$51,087,603 $45,665,070 Total Assets$49,317,496 $51,087,603 
Liabilities:Liabilities:Liabilities:
Non-interest-bearing demand depositsNon-interest-bearing demand deposits18,354,651 16,456,245 Non-interest-bearing demand deposits15,230,736 18,354,651 
Interest-bearing deposits:Interest-bearing deposits:Interest-bearing deposits:
Savings and interest checkingSavings and interest checking12,336,089 1,206 0.04 10,881,459 379 0.01 Savings and interest checking10,861,788 11,159 0.41 12,336,089 1,206 0.04 
Money market deposit accountsMoney market deposit accounts12,607,969 11,115 0.35 9,790,253 2,196 0.09 Money market deposit accounts11,431,483 76,337 2.68 12,607,969 11,115 0.35 
Time accountsTime accounts1,427,267 2,272 0.64 1,142,873 924 0.32 Time accounts3,482,557 32,770 3.77 1,427,267 2,272 0.64 
Total interest-bearing depositsTotal interest-bearing deposits26,371,325 14,593 0.22 21,814,585 3,499 0.06 Total interest-bearing deposits25,775,828 120,266 1.87 26,371,325 14,593 0.22 
Total depositsTotal deposits44,725,976 0.13 38,270,830 0.04 Total deposits41,006,564 1.18 44,725,976 0.13 
Federal funds purchasedFederal funds purchased35,529 75 0.84 34,344 0.08 Federal funds purchased32,796 412 4.97 35,529 75 0.84 
Repurchase agreementsRepurchase agreements1,742,669 1,790 0.41 2,058,818 570 0.11 Repurchase agreements3,718,696 33,114 3.52 1,742,669 1,790 0.41 
Junior subordinated deferrable interest debenturesJunior subordinated deferrable interest debentures123,035 772 2.51 136,380 638 1.87 Junior subordinated deferrable interest debentures123,092 2,106 6.84 123,035 772 2.51 
Subordinated notesSubordinated notes99,242 1,164 4.69 99,085 1,164 4.70 Subordinated notes99,398 1,164 4.69 99,242 1,164 4.69 
Total Interest-Bearing Funds and Average Rate PaidTotal Interest-Bearing Funds and Average Rate Paid28,371,800 18,394 0.26 24,143,212 5,878 0.10 Total Interest-Bearing Funds and Average Rate Paid29,749,810 157,062 2.11 28,371,800 18,394 0.26 
Accrued interest and other liabilitiesAccrued interest and other liabilities821,571 745,406 Accrued interest and other liabilities867,013 821,571 
Total LiabilitiesTotal Liabilities47,548,022 41,344,863 Total Liabilities45,847,559 47,548,022 
Shareholders’ EquityShareholders’ Equity3,539,581 4,320,207 Shareholders’ Equity3,469,937 3,539,581 
Total Liabilities and Shareholders’ EquityTotal Liabilities and Shareholders’ Equity$51,087,603 $45,665,070 Total Liabilities and Shareholders’ Equity$49,317,496 $51,087,603 
Net interest incomeNet interest income$311,377 $279,997 Net interest income$408,594 $311,377 
Net interest spreadNet interest spread2.45 %2.61 %Net interest spread2.66 %2.45 %
Net interest income to total average earning assetsNet interest income to total average earning assets2.56 %2.65 %Net interest income to total average earning assets3.45 %2.56 %

4142

Table of Contents
Year To DateYear To DateYear To DateYear To Date
June 30, 2022June 30, 2021June 30, 2023June 30, 2022
Average
Balance
Interest
Income/
Expense
Yield/
Cost
Average
Balance
Interest
Income/
Expense
Yield/
Cost
Average
Balance
Interest
Income/
Expense
Yield/
Cost
Average
Balance
Interest
Income/
Expense
Yield/
Cost
Assets:Assets:Assets:
Interest-bearing depositsInterest-bearing deposits$13,401,664 $32,714 0.49 %$11,615,467 $6,047 0.10 %Interest-bearing deposits$7,778,508 $186,993 4.78 %$13,401,664 $32,714 0.49 %
Federal funds soldFederal funds sold22,581 112 0.99 13,222 11 0.17 Federal funds sold43,306 1,063 4.88 22,581 112 0.99 
Resell agreementsResell agreements4,423 14 0.63 5,285 0.19 Resell agreements87,157 2,194 5.01 4,423 14 0.63 
Securities:Securities:Securities:
TaxableTaxable9,667,818 99,423 1.97 4,093,306 40,630 2.03 Taxable13,562,966 199,735 2.69 9,667,818 99,423 1.97 
Tax-exemptTax-exempt7,983,161 157,900 4.03 8,177,407 156,376 4.09 Tax-exempt7,946,474 172,581 4.25 7,983,161 157,900 4.03 
Total securitiesTotal securities17,650,979 257,323 2.87 12,270,713 197,006 3.38 Total securities21,509,440 372,316 3.24 17,650,979 257,323 2.87 
Loans, net of unearned discountsLoans, net of unearned discounts16,531,269 318,993 3.89 17,463,944 352,485 4.07 Loans, net of unearned discounts17,492,611 564,309 6.51 16,531,269 318,993 3.89 
Total Earning Assets and Average Rate EarnedTotal Earning Assets and Average Rate Earned47,610,916 609,156 2.56 41,368,631 555,554 2.74 Total Earning Assets and Average Rate Earned46,911,022 1,126,875 4.67 47,610,916 609,156 2.56 
Cash and due from banksCash and due from banks648,609 530,196 Cash and due from banks652,082 648,609 
Allowance for credit losses on loans and securitiesAllowance for credit losses on loans and securities(247,883)(264,798)Allowance for credit losses on loans and securities(230,345)(247,883)
Premises and equipment, netPremises and equipment, net1,050,111 1,043,156 Premises and equipment, net1,130,798 1,050,111 
Accrued interest and other assetsAccrued interest and other assets1,648,876 1,425,072 Accrued interest and other assets1,856,116 1,648,876 
Total AssetsTotal Assets$50,710,629 $44,102,257 Total Assets$50,319,673 $50,710,629 
Liabilities:Liabilities:Liabilities:
Non-interest-bearing demand depositsNon-interest-bearing demand deposits18,159,023 15,887,529 Non-interest-bearing demand deposits15,929,635 18,159,023 
Interest-bearing deposits:Interest-bearing deposits:Interest-bearing deposits:
Savings and interest checkingSavings and interest checking12,146,331 1,616 0.03 10,300,751 735 0.01 Savings and interest checking11,259,513 21,497 0.39 12,146,331 1,616 0.03 
Money market deposit accountsMoney market deposit accounts12,235,442 14,766 0.24 9,519,014 3,875 0.08 Money market deposit accounts11,915,319 151,807 2.57 12,235,442 14,766 0.24 
Time accountsTime accounts1,308,025 3,123 0.48 1,140,570 2,406 0.43 Time accounts2,772,708 44,951 3.27 1,308,025 3,123 0.48 
Total interest-bearing depositsTotal interest-bearing deposits25,689,798 19,505 0.15 20,960,335 7,016 0.07 Total interest-bearing deposits25,947,540 218,255 1.70 25,689,798 19,505 0.15 
Total depositsTotal deposits43,848,821 0.09 36,847,864 0.04 Total deposits41,877,175 1.05 43,848,821 0.09 
Federal funds purchasedFederal funds purchased31,666 87 0.55 37,461 15 0.08 Federal funds purchased41,979 995 4.71 31,666 87 0.55 
Repurchase agreementsRepurchase agreements1,896,270 2,308 0.24 1,950,005 965 0.10 Repurchase agreements3,963,372 66,765 3.35 1,896,270 2,308 0.24 
Junior subordinated deferrable interest debenturesJunior subordinated deferrable interest debentures123,028 1,356 2.19 136,373 1,284 1.88 Junior subordinated deferrable interest debentures123,085 4,094 6.62 123,028 1,356 2.19 
Subordinated notesSubordinated notes99,222 2,328 4.69 99,065 2,328 4.70 Subordinated notes99,379 2,328 4.69 99,222 2,328 4.69 
Total Interest-Bearing Funds and Average Rate PaidTotal Interest-Bearing Funds and Average Rate Paid27,839,984 25,584 0.18 23,183,239 11,608 0.10 Total Interest-Bearing Funds and Average Rate Paid30,175,355 292,437 1.95 27,839,984 25,584 0.18 
Accrued interest and other liabilitiesAccrued interest and other liabilities808,896 723,807 Accrued interest and other liabilities826,835 808,896 
Total LiabilitiesTotal Liabilities46,807,903 39,794,575 Total Liabilities46,931,825 46,807,903 
Shareholders’ EquityShareholders’ Equity3,902,726 4,307,682 Shareholders’ Equity3,387,848 3,902,726 
Total Liabilities and Shareholders’ EquityTotal Liabilities and Shareholders’ Equity$50,710,629 $44,102,257 Total Liabilities and Shareholders’ Equity$50,319,673 $50,710,629 
Net interest incomeNet interest income$583,572 $543,946 Net interest income$834,438 $583,572 
Net interest spreadNet interest spread2.38 %2.64 %Net interest spread2.72 %2.38 %
Net interest income to total average earning assetsNet interest income to total average earning assets2.45 %2.68 %Net interest income to total average earning assets3.46 %2.45 %


4243

Table of Contents
The following table presents the changes in taxable-equivalent net interest income and identifies the changes due to differences in the average volume of earning assets and interest-bearing liabilities and the changes due to changes in the average interest rate on those assets and liabilities. The changes in net interest income due to changes in both average volume and average interest rate have been allocated to the average volume change or the average interest rate change in proportion to the absolute amounts of the change in each.
Three Months EndedThree Months Ended
June 30, 2022 vs. June 30, 2021June 30, 2023 vs. June 30, 2022
Increase (Decrease) Due to Change inIncrease (Decrease) Due to Change in
RateVolumeTotalRateVolumeTotal
Interest-bearing depositsInterest-bearing deposits$22,842 $(85)$22,757 Interest-bearing deposits$78,996 $(17,619)$61,377 
Federal funds soldFederal funds sold85 91 Federal funds sold240 (34)206 
Resell agreementsResell agreements(3)Resell agreements112 1,004 1,116 
Securities:Securities:Securities:
TaxableTaxable312 35,451 35,763 Taxable21,742 23,853 45,595 
Tax-exemptTax-exempt(986)2,186 1,200 Tax-exempt4,474 (1,586)2,888 
Loans, net of unearned discountsLoans, net of unearned discounts(10,005)(5,916)(15,921)Loans, net of unearned discounts114,172 10,531 124,703 
Total earning assetsTotal earning assets12,257 31,639 43,896 Total earning assets219,736 16,149 235,885 
Savings and interest checkingSavings and interest checking792 35 827 Savings and interest checking10,117 (164)9,953 
Money market deposit accountsMoney market deposit accounts8,111 808 8,919 Money market deposit accounts66,350 (1,128)65,222 
Time accountsTime accounts1,079 269 1,348 Time accounts23,561 6,937 30,498 
Federal funds purchasedFederal funds purchased68 — 68 Federal funds purchased343 (6)337 
Repurchase agreementsRepurchase agreements1,320 (100)1,220 Repurchase agreements27,251 4,073 31,324 
Junior subordinated deferrable interest debenturesJunior subordinated deferrable interest debentures201 (67)134 Junior subordinated deferrable interest debentures1,334 — 1,334 
Subordinated notesSubordinated notes(2)— Subordinated notes— — — 
Total interest-bearing liabilitiesTotal interest-bearing liabilities11,569 947 12,516 Total interest-bearing liabilities128,956 9,712 138,668 
Net changeNet change$688 $30,692 $31,380 Net change$90,780 $6,437 $97,217 
Six Months EndedSix Months Ended
June 30, 2022 vs. June 30, 2021June 30, 2023 vs. June 30, 2022
Increase (Decrease) Due to Change inIncrease (Decrease) Due to Change in
RateVolumeTotalRateVolumeTotal
Interest-bearing depositsInterest-bearing deposits$25,656 $1,011 $26,667 Interest-bearing deposits$173,517 $(19,238)$154,279 
Federal funds soldFederal funds sold88 13 101 Federal funds sold770 181 951 
Resell agreementsResell agreements10 (1)Resell agreements591 1,589 2,180 
Securities:Securities:Securities:
TaxableTaxable(1,237)60,030 58,793 Taxable43,605 56,707 100,312 
Tax-exemptTax-exempt(2,317)3,841 1,524 Tax-exempt8,801 5,880 14,681 
Loans, net of unearned discountsLoans, net of unearned discounts(15,172)(18,320)(33,492)Loans, net of unearned discounts225,819 19,497 245,316 
Total earning assetsTotal earning assets7,028 46,574 53,602 Total earning assets453,103 64,616 517,719 
Savings and interest checkingSavings and interest checking809 72 881 Savings and interest checking20,025 (144)19,881 
Money market deposit accountsMoney market deposit accounts9,531 1,360 10,891 Money market deposit accounts137,439 (398)137,041 
Time accountsTime accounts317 400 717 Time accounts35,072 6,756 41,828 
Federal funds purchasedFederal funds purchased74 (2)72 Federal funds purchased871 37 908 
Repurchase agreementsRepurchase agreements1,370 (27)1,343 Repurchase agreements59,455 5,002 64,457 
Junior subordinated deferrable interest debenturesJunior subordinated deferrable interest debentures202 (130)72 Junior subordinated deferrable interest debentures2,737 2,738 
Subordinated notesSubordinated notes(4)— Subordinated notes— — — 
Total interest-bearing liabilitiesTotal interest-bearing liabilities12,299 1,677 13,976 Total interest-bearing liabilities255,599 11,254 266,853 
Net changeNet change$(5,271)$44,897 $39,626 Net change$197,504 $53,362 $250,866 
Taxable-equivalent net interest income for the three months ended June 30, 20222023 increased $31.4$97.2 million, or 11.2%31.2%, while taxable-equivalent net interest income for the six months ended June 30, 20222023 increased $39.6$250.9 million, or 7.3%43.0%, compared to the same periods in 2021.2022. The increase in taxable-equivalent net interest income during the three months ended June 30, 20222023 was primarily related to an increaseincreases in the average yield on loans and, to a lesser extent, the average volume of taxable securities,loans; an increase in the average yield on interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve); increases in the average volume of and to a much lesser extent,average yield on taxable securities; and an increase in the average volume oftaxable-equivalent yield on tax-exempt securities.securities, among other things. The impact of these items was partly offset by a decreaseincreases in the average volume of loans combined with decreases in the average yields on loans and tax-exempt securities and increases in thecosts
4344

Table of Contents
average costof interest-bearing deposit accounts and repurchase agreements, among other things, combined with a decrease in the average volume of interest-bearing deposit accountsdeposits (primarily money market deposit accounts)amounts held in an interest-bearing account at the Federal Reserve) and an increaseincreases in the average costvolume of time deposit accounts and repurchase agreements. agreements, among other things.
The increase in taxable-equivalent net interest income during the six months ended June 30, 20222023 was primarily related to an increaseincreases in the average yield on loans and, to a lesser extent, the average volume of taxable securities andloans; an increase in the average yield on interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve); and to a much lesser extent, increases in the average volumes of and the average taxable-equivalent yields on taxable and tax-exempt securities, among other things. The impact of these items was partly offset by increases in the average costs of interest-bearing deposit accounts and repurchase agreements, among other things, combined with a decrease in the average volume of interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve). The impact of these items was partly offset by a decrease and increases in the average volume of loans combined with decreases in the average yields on loans, tax-exempt securitiestime deposit accounts and taxable securities; an increase in the average cost and average volume of interest-bearing deposits (primarily money market deposit accounts); and an increase in the average cost of repurchase agreements.agreements, among other things. As a result of thesethe aforementioned fluctuations, the taxable-equivalent net interest margin decreased 9increased 89 basis points from 2.65% during the three months ended June 30, 2021 to 2.56% during the three months ended June 30, 2022 to 3.45% during the three months ended June 30, 2023 while the taxable-equivalent net interest margin decreased 23increased 101 basis points from 2.68% during the six months ended June 30, 2021 to 2.45% during the six months ended June 30, 2022.2022 to 3.46% during the six months ended June 30, 2023.
The average volume of interest-earning assets for the three months ended June 30, 2022 increased $5.02023 decreased $2.0 billion while the average volume of interest-earning assets for the six months ended June 30, 2022 increased $6.2 billion2023 decreased $699.9 million compared to the same periods in 2021.2022. The increasedecrease in the average volume of interest-earning assets during the three months ended June 30, 20222023 was primarily related to a $6.2 billion increase in average taxable securities partly offset by a $571.9 million decrease in average loans (which was primarily impacted by a $2.5 billion decrease in average PPP loans, as further discussed below), a $322.9 million decrease in average tax-exempt securities and a $306.0 million decrease in average interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve). and a $306.3 million decrease in average tax-exempt securities partly offset by a $3.5 billion increase in average taxable securities and a $989.8 million increase in average loans. The increaseaverage taxable-equivalent yield on interest-earning assets increased 206 basis points from 2.71% during the three months ended June 30, 2022 to 4.77% during the three months ended June 30, 2023.
The decrease in the average volume of interest-earning assets during the six months ended June 30, 20222023 was primarily related to a $5.6 billion increase in average taxable securities and a $1.8 billion increasedecrease in average interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve) partly offset by a $932.7 million decrease in average loans (which was primarily impacted by a $2.5 billion decrease in average PPP loans, as further discussed below) and a $194.2$36.7 million decrease in average tax-exempt securities.
securities partly offset by a $3.9 billion increase in average taxable securities and a $961.3 million increase in average loans. The average taxable-equivalent yield on interest-earning assets was 2.71% during both the three months ended June 30, 2021 and 2022 while the average taxable-equivalent yield on interest-earning assets decreased 18increased 211 basis points from 2.74% during the six months ended June 30, 2021 to 2.56% during the six months ended June 30, 2022.2022 to 4.67% during the six months ended June 30, 2023. The average taxable-equivalent yield on interest-earning assets during 2022the comparable periods was impacted by the aforementioned changes in market interest rates and changes in the volume and relative mix of interest-earning assets.
The average taxable-equivalent yield on loans decreased 24increased 260 basis points from 4.28% during the three months ended June 30, 2021 to 4.04% during the three months ended June 30, 2022 to 6.64% during the three months ended June 30, 2023 while the average taxable-equivalent yield on loans decreased 18increased 262 basis points from 4.07% during the six months ended June 30, 2021 to 3.89% during the six months ended June 30, 2022.2022 to 6.51% during the six months ended June 30, 2023. The average taxable-equivalent yieldyields on loans during the three and six months ended June 30, 2021 was2023 were positively impacted by a higher average proportion of higher-yielding PPP loans to total loans compared to the three and six months ended June 30, 2022.recent increases in market interest rates. The average volume of loans for the three months ended June 30, 2022 decreased $571.92023 increased $989.8 million, or 3.3%5.9%, while the average volume of loans for the six months ended June 30, 2022 decreased $932.72023 increased $961.3 million, or 5.3%5.8%, compared to the same periods in 2021. The decreases in the average volume of loans were primarily due to a $2.5 billion decrease in the average volumes of PPP loans during both the three and six months ended June 30, 2022. Excluding PPP loans, average loans would have increased $1.9 billion, or 13.2%, and $1.6 billion, or 10.8%, during the three and six months ended June 30, 2022, respectively, compared to the same periods in 2021. Loans made up approximately 34.8%38.5% and 34.7%37.3% of average interest-earning assets during the three and six months ended June 30, 2022, respectively,2023, compared to 40.2%34.8% and 42.2%34.7% during the same respective periods in 2021.2022.
During the six months ended June 30, 2022, we recognized approximately $2.6 million in PPP loan related deferred processing fees (net of amortization of related deferred origination costs) as aThe average taxable-equivalent yield adjustment and this amount is included in interest income on loans. Such amounts were not significantsecurities was 3.24% during the three months ended June 30, 2022. Duringboth the three and six months ended June 30, 2021, we recognized approximately $38.8 million and $62.3 million, respectively, in PPP loan related deferred processing fees (net of amortization of related deferred origination costs). As a result of the inclusion of these net fees in interest income, the average yields on PPP loans was 1.00% and 3.32% during the three and six months ended June 30, 2022, and 6.89% and 5.60% during the three and six months ended June 30, 2021, compared to the stated interest rate of 1.0% on these loans.
The average taxable-equivalent yield on securities was2023, increasing 37 basis points from 2.87% during both the three and six months ended June 30, 2022, decreasing 49 basis points from 3.36%2022. The average yield on taxable securities was 2.71% during the three months ended June 30, 2021 and decreasing 512023, increasing 67 basis points from 3.38% during the six months ended June 30, 2021. The average yield on taxable securities was 2.04% during the three months ended June 30, 2022 increasing 3 basis points from 2.01% during the same period in 20212022 while the average yield on taxable securities was 1.97%2.69% during the six months ended June 30, 2022 decreasing 62023, increasing 72 basis points from 2.03%1.97% during the same period in 2021.2022. The average taxable-equivalent yield on tax-exempt securities was 4.04%4.27% during the three months ended June 30, 2022
44

Table of Contents
decreasing 52023, increasing 23 basis points from 4.09%4.04% during the same period in 20212022 while the average taxable-equivalent yield on tax-exempt securities was 4.03%4.25% during the six months ended June 30, 2022, decreasing 62023, increasing 22 basis points from 4.09%4.03% during the same period in 2021.2022.
Tax exemptTax-exempt securities made up approximately 43.0%35.2% and 45.2%36.9% of total average securities during the three and six months ended June 30, 2022, respectively,2023, compared to 66.1%43.0% and 66.6%45.2% during the same periods in 2021.2022. The average volume of total securities during the three months ended June 30, 20222023 increased $5.8$3.1 billion, or 47.5%17.4%, compared to the same period in 20212022 while the average volume of total securities during the six months ended June 30, 20222023 increased $5.4$3.9 billion, or 43.8%21.9%, compared to the same period in 2021.2022. Securities made up approximately 37.9%46.3% of average interest-earning assets during the three months ended June 30, 20222023 compared to 28.6%37.9% during the same period in 20212022 while securities made up approximately 37.1%45.8% of average interest-earning assets during the six months ended June 30, 20222023 compared to 29.7%37.1% during the same period in 2021.2022. The
45

Table of Contents
increases during the three and six months ended June 30, 20222023 were primarily related to the investment of available funds (primarily from growththe reinvestment of amounts held in deposits) inan interest-bearing account at the Federal Reserve) into taxable securities.
Average interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve) for the three months ended June 30, 20222023 decreased $306.0 million,$6.2 billion, or 2.3%47.2%, compared to the same period in 20212022, while average interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve) for the six months ended June 30, 2022 increased $1.82023 decreased $5.6 billion, or 15.4%42.0%, compared to the same period in 2021.2022. Interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve) made up approximately 27.2%15.0% of average interest-earning assets during the three months ended June 30, 20222023 compared to 31.1%27.2% during the same period in 20212022 while interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve) made up approximately 28.1%16.6% of average interest-earning assets during the six months ended June 30, 20222023 compared to 28.1% during the same period in 2022. The decreases during the three and 2021.six months ended June 30, 2023 were primarily related to the reinvestment of amounts held in an interest-bearing account at the Federal Reserve into taxable securities, and to a lesser extent, loans combined with decreases in average funding provided by customer deposits (primarily non-interest-bearing). The average yield on interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve) was 0.80%5.05% and 0.49%4.78% during the three and six months ended June 30, 2022, respectively,2023, compared to 0.11%0.80% and 0.10%0.49% during the same respective periods in 2021.2022. The average yields on interest-bearing deposits during the three and six months ended June 30, 20222023 were impacted by higher interest rates paid on reserves held at the Federal Reserve, compared to the same respective periods in 2021.2022.
The average rate paid on interest-bearing liabilities was 0.26%2.11% during the three months ended June 30, 2022,2023, increasing 16185 basis points from 0.10%0.26% during the same period in 20212022 while the average rate paid on interest-bearing liabilities was 0.18%1.95% during the six months ended June 30, 20222023, increasing 8177 basis points from 0.10%0.18% during the same period in 2021.2022. Average deposits increased $6.5decreased $3.7 billion, or 16.9%8.3%, during the three months ended June 30, 20222023 compared to the same period in 20212022 and included a $4.6$3.1 billion increasedecrease in average non-interest-bearing deposits and a $595.5 million decrease in average interest-bearing deposits and a $1.9 billion increase in average non-interest bearing deposits. Average deposits increased $7.0decreased $2.0 billion, or 19.0%4.5%, during the six months ended June 30, 20222023 compared to the same period in 20212022 and included a $4.7$2.2 billion decrease in average non-interest-bearing deposits partly offset by a $257.7 million increase in average interest-bearing deposits and a $2.3 billion increase in average non-interest bearing deposits. The ratio of average interest-bearing deposits to total average deposits was 59.0%62.9% and 58.6%62.0% during the three and six months ended June 30, 20222023 compared to 57.0%59.0% and 56.9%58.6% during the same respective periods in 2021.2022. The average cost of deposits is primarily impacted by changes in market interest rates as well as changes in the volume and relative mix of interest-bearing deposits. The average cost of interest-bearing deposits and total deposits was 0.22%1.87% and 0.13%1.18%, respectively, during the three months ended June 30, 20222023 compared to 0.06%0.22% and 0.04%0.13%, respectively, during the same period in 2021.2022. The average cost of interest-bearing deposits and total deposits was 0.15%1.70% and 0.09%1.05%, respectively, during the six months ended June 30, 20222023 compared to 0.07%0.15% and 0.04%0.09%, respectively, during the same period in 2021.2022. The average cost of deposits during 2022the comparable periods was impacted by an increaseincreases in the interest rates we pay on most of our interest-bearing deposit products as a result of the aforementioned increaseincreases in market interest rates.
Our net interest spread, which represents the difference between the average rate earned on earning assets and the average rate paid on interest-bearing liabilities, was 2.45%2.66% and 2.38%2.72% during the three and six months ended June 30, 20222023 compared to 2.61%2.45% and 2.64%2.38% during the same respective periods in 2021.2022. The net interest spread, as well as the net interest margin, will be impacted by future changes in short-term and long-term interest rate levels, as well as the impact from the competitive environment.environment, including from new financial technology competitors, and the availability of alternative investment options. A discussion of the effects of changing interest rates on net interest income is set forth in Item 3. Quantitative and Qualitative Disclosures About Market Risk included elsewhere in this report.
Our hedging policies permit the use of various derivative financial instruments, including interest rate swaps, swaptions, caps and floors, to manage exposure to changes in interest rates. Details of our derivatives and hedging activities are set forth in Note 8 - Derivative Financial Instruments in the accompanying notes to consolidated financial statements included elsewhere in this report. Information regarding the impact of fluctuations in interest rates on our derivative financial instruments is set forth in Item 3. Quantitative and Qualitative Disclosures About Market Risk included elsewhere in this report.
4546

Table of Contents
Credit Loss Expense
Credit loss expense is determined by management as the amount to be added to the allowance for credit loss accounts for various types of financial instruments including loans, securities and off-balance-sheet credit exposures after net charge-offs have been deducted to bring the allowances to a level which, in management’s best estimate, is necessary to absorb expected credit losses over the lives of the respective financial instruments. The components of credit loss expense were as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Credit loss expense (benefit) related to:Credit loss expense (benefit) related to:Credit loss expense (benefit) related to:
LoansLoans$(4,396)$(4,379)$68 $(4,379)Loans$11,933 $(4,396)$24,608 $68 
Off-balance-sheet credit exposuresOff-balance-sheet credit exposures4,396 4,379 (68)4,444 Off-balance-sheet credit exposures(2,037)4,396 (5,712)(68)
Securities held to maturitySecurities held to maturity— — — (2)Securities held to maturity— 109 — 
TotalTotal$— $— $— $63 Total$9,901 $— $19,005 $— 
See the section captioned “Allowance for Credit Losses” elsewhere in this discussion for further analysis of credit loss expense related to loans and off-balance-sheet credit exposures.
Non-Interest Income
Total non-interest income for the three and six months ended June 30, 20222023 increased $6.7$5.6 million, or 7.3%5.7%, and increased $14.8$9.5 million, or 8.0%4.8%, respectively, compared to the same periods in 2021.2022. Changes in the various components of non-interest income are discussed in more detail below.
Trust and Investment Management Fees. Trust and investment management fees increased $1.6 million, or 4.3%, for the three months ended June 30, 2023 and decreased $896 thousand, or 1.2%, for the six months ended June 30, 2022 decreased $98 thousand, or 0.3%, and increased $3.2 million, or 4.4%, respectively,2023, compared to the same respective periods in 2021.2022. Investment management fees are the most significant component of trust and investment management fees, making up approximately 79.6%78.5% and 81.8%79.6% of total trust and investment management fees for the first six months of 20222023 and 2021,2022, respectively. The decreaseincrease in trust and investment management fees during the three months ended June 30, 20222023 was primarily due to decreasesincreases in real estate fees (down $968(up $1.0 million), estate fees (up $821 thousand) and investment management fees (down $863(up $580 thousand), among other things, mostly partly offset by an increasea decrease in oil and gas fees (up $1.8(down $1.0 million).
The increasedecrease in trust and investment management fees during the six months ended June 30, 20222023 was primarily due to increasesdecreases in investment management fees (down $1.5 million) and oil and gas fees (up $2.6(down $1.1 million), investment management fees (up $966 thousand) andpartly offset by increases in real estate fees (up $580$867 thousand) partly offset by a decrease inand estate fees (down $888(up $647 thousand). Investment management fees are generally based on the market value of assets within an account and are thus impacted by volatility in the equity and bond markets. The increase in investment management fees during sixthe three months ended June 30, 20222023 was primarily related to higheran increase in the average equity valuations as well as an increasevolume of assets maintained in accounts, despite a slight decrease in the number of accounts. The increase in the average volume of assets was partly related to slightly higher equity valuations during the second quarter of 2023 relative to the same period in 2022. The decrease in investment management fees during threethe six months ended June 30, 2023 was partly related to the recognition of certain non-recurring revenues in 2022 wasas well as lower average equity and bond valuations relative to 2022. The increases in estate fees and real estate fees during the three and six months ended June 30, 2023 were primarily related to the sharp declineincreases in equity valuations during the second quarter of 2022. Oiltransaction volumes. The decreases in oil and gas fees during the three and six months ended June 30, 2022 were impacted by increases in oil and gas prices. The fluctuations in estate fees and real estate fees during the comparable periods2023 were primarily related to variationslower average market prices in transaction volumes.2023 relative to 2022.
At June 30, 2022,2023, trust assets, including both managed assets and custody assets, were primarily composed of equity securities (43.0%(41.7% of assets), fixed income securities (33.1%(33.6% of assets), alternative investments (7.5%(8.7% of assets) and cash equivalents (9.9%(9.0% of assets). The estimated fair value of these assets was $44.9 billion (including managed assets of $22.4 billion and custody assets of $22.5 billion) at June 30, 2023, compared to $42.9 billion (including managed assets of $21.4 billion and custody assets of $21.5 billion) at December 31, 2022 and $40.1 billion (including managed assets of $19.4 billion and custody assets of $20.6 billion) at June 30, 2022, compared to $43.3 billion (including managed assets of $19.1 billion and custody assets of $24.2 billion) at December 31, 2021 and $42.3 billion (including managed assets of $18.1 billion and custody assets of $24.2 billion) at June 30, 2021.2022.
Service Charges on Deposit Accounts. Service charges on deposit accounts for the three and six months ended June 30, 2022 increased $4.02023 decreased $383 thousand, or 1.6%, and decreased $1.2 million, or 20.3%, and increased $6.8 million, or 17.0%2.7%, respectively, compared to the same periods in 2021.2022. The increasedecrease during the three months ended June 30, 20222023 was primarily related to a decrease in commercial service charges (down $2.2 million), partly offset by increases in overdraft charges on consumer and commercial accounts (up $2.1 million$915 thousand and $624$534 thousand, respectively) and commercialconsumer service charges (up $1.1 million)$330 thousand). The increasedecrease during the six months ended June 30, 20222023 was primarily related to a decrease in commercial service charges (down $5.2 million), partly offset by increases in overdraft charges on consumer and commercial accounts (up $2.7$2.2 million and $1.1$1.2 million, respectively) and commercialconsumer service charges (up $2.5 million)$624 thousand).
Commercial The decrease in commercial service charges during the three and six months ended
47

Table of Contents
June 30, 20222023 primarily resulted from a higher average earnings credit rate applied to deposits maintained by treasury management customers. Because average market interest rates were primarily impacted by increases in the volumes of billable serviceshigher during 2023 compared to the same periods in 2021.2022, deposit balances were more valuable and yielded a higher average earnings credit rate. As a result, customers paid for less of their services through fees rather than with earnings credits applied to their deposit balances. Overdraft charges totaled $11.0 million ($8.4 million consumer and $2.7 million commercial) during the three months ended June 30, 2023 compared to $9.6 million ($7.4 million consumer and $2.1 million commercial) during the three months ended June 30, 2022 compared to $6.9same period in 2022. Overdraft charges totaled $21.6 million ($5.316.3 million consumer and $1.5 million commercial) during the same period in 2021. Overdraft charges totaled $18.2 million ($14.1 million
46

Table of Contents
consumer and $4.1$5.3 million commercial) during the six months ended June 30, 20222023 compared to $14.4$18.2 million ($11.414.1 million consumer and $3.0$4.1 million commercial) during the same period in 2021.2022. The increases in overdraft charges during the three and six months ended June 30, 20222023 were impacted by increases in the volumes of fee assessed overdrafts relative to 2022, in part due to growth in the same periods in 2021.
In June 2022, we expanded the overdraft grace feature first implemented in April 2021. This feature, which was previously only available to certain consumer demand deposit accounts, is now available to allnumber of our consumer demand deposit accounts, regardless of direct deposit status. With this feature no fees will be assessed on overdrafts of $100 or less. Additionally, we also eliminated fees on non-sufficient and returned items for all consumer deposit accounts. We expect these changes will impact revenue by as much as $3.5 million on an annual basis.
Insurance Commissions and Fees. Insurance commissions and fees for the three and six months ended June 30, 20222023 increased $1.0$1.2 million, or 9.3%9.9%, and increased $298 thousand,$3.5 million, or 1.1%12.4%, respectively, compared to the same periods in 2021.2022. The increase during the three months ended June 30, 20222023 was primarily the result of increasesan increase in commission income (up $774 thousand) and$1.3 million) partly offset by a decrease in contingent income (up $229(down $133 thousand). The increase during the six months ended June 30, 20222023 was primarily the result of anincreases in commission income (up $2.3 million) and contingent income (up $1.2 million). The increase in commission income (up $1.3 million) mostly offset byduring the three months ended June 30, 2023 was primarily related to increases in commercial lines property and casualty commissions and benefit plan commissions and, to a decreaselesser extent, increases in contingent income (down $1.0 million).life insurance commissions and personal lines property and casualty commissions. The increase during the six months ended June 30, 2023 was primarily due to increases in life insurance commissions and benefit plan commissions and, to a lesser extent, commercial and personal lines property and casualty commissions. The increases in commercial and personal lines property and casualty commissions and benefit plan commissions during the three and six months ended June 30, 2023 were primarily related to increases in the underlying exposure bases and increases in rates. The increases in life insurance commissions during the three and six months ended June 30, 2023 were primarily due to increased business volumes.
Contingent income totaled $578$445 thousand and $3.0$4.3 million during the three and six months ended June 30, 2022,2023, respectively, compared to $349$578 thousand and $4.0$3.0 million during the same respective periods in 2021.2022. Contingent income primarily consists of amounts received from various property and casualty insurance carriers related to portfolio growth and the loss performance of insurance policies previously placed. These performance related contingent payments are seasonal in nature and are mostly received during the first quarter of each year. This performance related contingent income totaled $1.8$3.2 million and $3.1$1.8 million during the six months ended June 30, 20222023 and 2021,2022, respectively. The decreaseincrease in performance related contingent income during 2022 was primarily related to low growth within the portfolio and a deteriorationimprovement in the loss performance of insurance policies previously placed. This deteriorationPerformance related contingent income in 2022 was impacted by a severe weather event in Texas during the first quarter of 2021 that resulted in a significant increase in property and casualty claims and losses. Contingent income also includes amounts received from various benefit plan insurance companies related to the volume of business generated and/or the subsequent retention of such business. This benefit plan related contingent income totaled $385$430 thousand and $1.2$1.1 million during the three and six months ended June 30, 2022,2023, respectively, compared to $274$385 thousand and $899 thousand$1.2 million during the same respective periods in 2021. The increases in commission income during the three and six months ended June 30, 2022 were primarily related to increases in commercial and personal lines property and casualty commissions and benefit plan commissions partly offset by decreases in life insurance commissions. The increases in commercial and personal lines property and casualty commissions and benefit plan commissions during the three and six months ended June 30, 2022 were related to increased business volumes and increased market rates while the decreases in life insurance commissions were related to decreased business volumes.2022.
Interchange and Card Transaction Fees. Interchange fees, or “swipe” fees, are charges that merchants pay to us and other card-issuing banks for processing electronic payment transactions. Interchange and card transaction fees consist of income from debit and credit card usage, point of sale income from PIN-based card transactions and ATM service fees. Interchange and card transaction fees are reported net of related network costs.
Net interchange and card transaction fees for the three and six months ended June 30, 20222023 increased $270$339 thousand, or 5.8%6.9%, and increased $403 thousand,$1.0 million, or 4.6%11.0%, respectively, compared to the same periods in 20212022 primarily due to increases in transaction volumes as well as the impact of new card products partly offset by an increase in network costs. A comparison of gross and net interchange and card transaction fees for the reported periods is presented in the table below.
Three Months Ended
June 30,
Six Months Ended
June 30,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021202220212023202220232022
Income from card transactionsIncome from card transactions$8,308 $7,553 $15,789 $13,945 Income from card transactions$9,405 $8,308 $18,207 $15,789 
ATM service feesATM service fees867 866 1,631 1,651 ATM service fees912 867 1,756 1,631 
Gross interchange and card transaction feesGross interchange and card transaction fees9,175 8,419 17,420 15,596 Gross interchange and card transaction fees10,317 9,175 19,963 17,420 
Network costsNetwork costs4,264 3,778 8,283 6,862 Network costs5,067 4,264 9,824 8,283 
Net interchange and card transaction feesNet interchange and card transaction fees$4,911 $4,641 $9,137 $8,734 Net interchange and card transaction fees$5,250 $4,911 $10,139 $9,137 

48

Table of Contents
Federal Reserve rules applicable to financial institutions that have assets of $10 billion or more provide that the maximum permissible interchange fee for an electronic debit transaction is the sum of 21 cents per transaction and 5 basis points multiplied by the value of the transaction. An upward adjustment of no more than 1 cent to an issuer's debit card interchange fee is allowed if the card issuer develops and implements policies and procedures reasonably designed to achieve certain fraud-
47

Table of Contents
preventionfraud-prevention standards. The Federal Reserve also has rules governing routing and exclusivity that require issuers to offer two unaffiliated networks for routing transactions on each debit or prepaid product.
Other Charges, Commissions and Fees. Other charges, commissions and fees for the three months ended June 30, 20222023 increased $1.2$2.2 million, or 14.4%22.3%, compared to the same period in 2021.2022. The increase was primarily related to increases in capital markets advisory fees (up $648 thousand), other service charges (up $641 thousand), income from the placement of money market accounts (up $1.1 million)$472 thousand), commitment fees on unused lines of credit (up $456 thousand) and merchant services rebates/bonusesletter of credit fees (up $472$294 thousand), among other things, partly offset by a decrease in income from the sale of mutual funds (down $448$375 thousand), among other things. Other charges, commissions and fees for the six months ended June 30, 20222023 increased $2.6$4.3 million, or 15.2%21.9%, compared to the same period in 2021.2022. The increase was primarily related to increases in income from the placement of money market accounts (up $944$2.0 million), other service charges (up $1.2 million), capital markets advisory fees (up $893 thousand), merchant services rebates/bonusescommitment fees on unused lines of credit (up $898$792 thousand), letter of credit fees (up $463$480 thousand) and funds transfer service chargesmerchant services rebates/bonuses (up $295$331 thousand), among other things, partly offset by a decrease in income from the sale of mutual funds (down $1.2 million), among other things.
Net Gain/Loss on Securities Transactions. During the six months ended June 30, 2023, we sold certain available-for-sale securities with amortized costs totaling $1.5 billion and realized a net gain of $54 thousand. Market conditions provided us an opportunity to sell certain lower-yielding securities. The proceeds from these sales enhanced our current liquidity position and will provide us the flexibility to be more opportunistic with the reinvestment of these funds in the future. There were no sales of securities during 2022.
Other Non-Interest Income. Other non-interest income for the three months ended June 30, 20222023 increased $237$629 thousand, or 2.5%6.5%, compared to the same period in 2021.The2022. The increase was primarilypartly related to increases in income from customer derivative and securities trading transactions (up $315 thousand) and earnings on the cash surrender value of life insurance (up $280 thousand), among other things. These items were partly offset by a decrease in public finance underwriting fees (down $260 thousand), among other things.
Other non-interest income for the six months ended June 30, 2023 increased $2.8 million, or 14.4%, compared to the same period in 2022. The increase was partly related to increases in sundry and other miscellaneous income (up $1.2 million), income from customer derivative and securities trading transactions (up $742$797 thousand), earnings on the cash surrender value of life insurance (up $372 thousand), gains on the sale of foreclosed and other assets (up $325 thousand) and income from customer foreign exchange transactions (up $547$281 thousand), among other things,things. These items were partly offset by decreasesa decrease in gains on the sale assetspublic finance underwriting fees (down $1.8$1.2 million) and mineral interest income (down $289 thousand), among other things. Sundry income during the threesix months ended June 30, 20222023 included $1.0$1.4 million in card related incentives/rebates and $489to a distribution received from a Small Business Investment Company (“SBIC”) fund investment, $839 thousand related to a volume bonus received from Frost Brokerage Services' clearing broker, $747 thousand related to the recovery of prior write-offs. The increases in income from customer derivativewrite-offs and securities trading transactions and customer foreign exchange transactions were primarily$575 thousand related to increases in transaction volumes. Gains on the sale of assets during the second quarter of 2021 included $1.8 million related to the sale of certain parking lots in downtown San Antonio. The decrease in minerala partnership interest, income was related to the donation of certain mineral interests in 2021.
Other non-interest income for the six months ended June 30, 2022 increased $1.6 million, or 8.8%, compared to the same period in 2021. The increase was primarily related to increases in sundry and other miscellaneous income (up $2.3 million), public finance underwriting fees (up $1.6 million) and income from customer foreign exchange transactions (up $926 thousand) partly offset by decreases in gains on the sale of foreclosed and other assets (down $1.8 million), mineral interest income (down $497 thousand) and income from customer derivative and securities trading transactions (down $435 thousand), among other things. Sundrythings, while sundry income during the six months ended June 30, 2022 included $1.0 million related to the recovery of prior write-offs, $1.0 million in card related incentives/rebates and $458 thousand related to a contract fee.fee, among other things. The increasesfluctuations in public finance underwriting feesincome from customer derivative and securities trading transactions; income from customer foreign exchange transactionstransactions; and income from public finance underwriting fees were primarily related to increasesfluctuations in transaction volumes. The decreaseincrease in earnings on the cash surrender value of life insurance was related to an increase in market interest rates. The increase in gains on the sale of foreclosed and other assets was primarily related to the aforementioned sale of certain parking lots in downtown San Antonio during the second quarter of 2021. The decrease in mineral interest income was related to the donation of certain mineral interests in 2021. The decrease in income from customer derivative transactions was primarily due to a decrease in transaction volume.foreclosed real estate property.
Non-Interest Expense
Total non-interest expense for the three and six months ended June 30, 20222023 increased $31.1$38.7 million, or 14.4%15.7%, and increased $59.7$85.1 million, or 14.0%17.5%, respectively, compared to the same periods in 2021.2022. Changes in the various components of non-interest expense are discussed below.
Salaries and Wages. Salaries and wages for the three and six months ended June 30, 20222023 increased $19.8$16.3 million, or 20.5%14.0%, and increased $37.7$35.3 million, or 19.8%15.5%, respectively, compared to the same periods in 2021.2022. The increases in salaries and wages were primarily related to increases in salaries due to annual merit and market increases as well asand increases in the implementationnumber of a $20 per hour minimum wage in December, 2021. Salaries and wages was also impacted byemployees. The increases in the number of employees was partly related to our investments in organic expansion in the Houston and Dallas markets as well as preparations for our mortgage loan product offering. Salaries and wages were also impacted, to a lesser extent, by increases in incentivestock-based compensation and primarily during the six months ended June 30, 2022, a decrease in salary costs deferred in connection with loan originations as the first quarter of 2021 was impacted by the high volume of PPP loan originations.incentive compensation. We are experiencing an increasinglya competitive labor market which has resulted in and could continue to result in an increase in our staffing costs.
49

Table of Contents
Employee Benefits. Employee benefits expense for the three and six months ended June 30, 20222023 increased $2.0$6.1 million, or 10.7%29.2%, and increased $3.7$15.8 million, or 8.9%35.1%, respectively, compared to the same periods in 2021.2022. The increases were primarily related to increases in payroll taxes, 401(k) plan expense (up $1.4 million and $5.6 million during the three and six months ended June 30, 2023, respectively), medical benefits expense among other things, partly offset by increases(up $1.8 million and $3.7 million during the three and six months ended June 30, 2023, respectively), and payroll taxes (up $991 thousand and $2.9 million during the three and six months ended June 30, 2023, respectively), and decreases in the net periodic benefitsbenefit related to our defined benefit retirement plan.plan (down $1.6 million and $3.2 million, respectively), among other things.
Our defined benefit retirement and restoration plans were frozen in 2001 which has helped to reduce the volatility in retirement plan expense. We nonetheless still have funding obligations related to these plans and could recognize expense related to these plans in future years, which would be dependent on the return earned on plan assets, the level of interest rates
48

Table of Contents
and employee turnover. See Note 12 - Defined Benefit Plans for additional information related to our net periodic pension benefit/cost.
Net Occupancy. Net occupancy expense for the three and six months ended June 30, 20222023 increased $1.7$3.3 million, or 6.5%11.8%, and increased $3.1$6.3 million, or 5.9%11.2%, respectively, compared to the same periods in 2021.2022. The increases during the three and six months ended June 30, 20222023 were primarily related to increases in repairs and maintenance/service contractslease expense (up $1.0$1.6 million and $1.8$2.4 million, respectively), depreciation on buildings and leasehold improvements (together up $308$1.1 million and $1.8 million, respectively), and utilities expense (up $284 thousand and $663 thousand, respectively) and lease expense (up $433 thousand and $528$917 thousand, respectively), among other things. The increases in the aforementioned components of net occupancy expense were impacted, in part, by our expansion within the Houston and Dallas market areas.
Technology, Furniture and Equipment. Technology, furniture and equipment expense for the three and six months ended June 30, 2022 increased $1.9 million, or 6.9%, and2023 increased $3.1 million, or 5.5%10.4%, and increased $6.4 million, or 10.9%, respectively, compared to the same periods in 2021.2022. The increases during the three and six months ended June 30, 20222023 were primarily related to increases in cloud services expense (up $1.1$2.1 million and $1.9$3.7 million, respectively), depreciation of furniture and equipment (up $348 thousand and $863 thousand, respectively) and service contracts expense (up $466$964 thousand and $583 thousand,$2.0 million, respectively), among other things, partly offset by decreases in software maintenance (down $199 thousand and $557 thousand, respectively).things.
Deposit Insurance. Deposit insurance expense totaled $6.2 million and $12.4 million for the three and six months ended June 30, 2023, respectively, compared to $3.7 million and $7.4 million for the three and six months ended June 30, 2022, respectively, compared to $2.9 million and $5.8 million forrespectively. The increases during the three and six months ended June 30, 2021. The increases2023 were primarily related to an increase in total assets partly offset by a decrease in the assessment rate. In JuneOctober 2022, the Federal Deposit Insurance Corporation issued(“FDIC”) adopted a notice of proposed rulemaking, applicable to all insured depository institutions,final rule to increase the initial base deposit insurance assessment ratesrate schedules uniformly by 2 basis points beginning with the first quarterly assessment period of 2023.
In May 2023, the FDIC issued a Notice of Proposed Rulemaking proposing an emergency special assessment to recover losses to the Deposit Insurance Fund ("DIF") incurred as a result of recent bank failures and the FDIC's use of the systemic risk exception to cover certain deposits that were otherwise uninsured. Under the proposal, the special assessment would be based on estimated uninsured deposits as of December 31, 2022 (excluding the first $5.0 billion) and assessed at a rate of 25 basis points payable over eight quarters beginning in the first quarter of 2024. If this rule is made final as it is proposed, we expect that we will incur a special assessment of approximately $47.1 million ($37.2 million after tax). Based on the proposed rule, such amount will be fully-expensed in the period the rule is made final, which is currently expected to be later in 2023. Nonetheless, the proposal could be changed and the timing of accounting recognition is still under consideration. Under the proposed rule, the estimated loss pursuant to the systemic risk determination would be periodically adjusted, and the FDIC would retain the ability to cease collection early, extend the special assessment collection period and impose a final shortfall special assessment on a one-time basis. The extent to which any such future assessment will impact our future deposit insurance expense is currently uncertain.
Other Non-Interest Expense. Other non-interest expense for the three and six months ended June 30, 20222023 increased $4.8$7.4 million, or 11.5%16.0%, and increased $10.7$16.3 million, or 13.6%18.2%, respectively, compared to the same periods in 2021.2022. The increase during the three months ended June 30, 20222023 included increases in travel, meals and entertainmentadvertising/promotions expense (up $1.7$2.9 million); professional services expense (up $1.2$2.8 million), which was primarily related to information technology services; travel, meals and entertainment expense (up $956 thousand); stationery, printing and supplies expense (up $513 thousand); business development expense (up $444 thousand); and check card expense (up $395 thousand), among other things. These items were partly offset by a decrease in sundry and other miscellaneous expenses (up(down $1.1 million); and advertising/promotions expense (up $661 thousand)., among other things. Sundry and other miscellaneous expenses during the three months ended June 30, 2022 included $446 thousand related to the write-off of certain assets and $387 thousand related to settlements. The impact of the aforementioned items was partly offset by decreases in donations expense (down $1.8 million), which was impacted by a $1.8 million contribution to the Frost Charitable Foundation in the second quarter of 2021, among other things.settlement and certain operational losses. The increase during the six months ended June 30, 20222023 included increases in professional services expense (up $3.0$5.1 million), which was primarily related to information technology services; advertising/promotions expense (up $4.1 million); travel, meals and entertainment (up $3.0$2.3 million); advertising/promotionscheck card expense (up $2.8$1.3 million); and business development expense (up $889 thousand); among other things. Other non-interest expense during the six months ended June 30, 2022 was also impacted by a decrease in costs deferred as loan origination costs (down $1.2 million) as the first quarter of 2021 was impacted by a large volume of PPP loan originations. The impact of the aforementioned items was partly offset by decreases in donations; and stationery, printing and supplies expense (down $3.2 million), which was impacted by $3.3 million in contributions to the Frost Charitable Foundation in the first six months of 2021; and amortization of deferred costs associated with loan commitments (down $663(up $808 thousand), among other things.
50

Table of Contents

Results of Segment Operations
We are managed under a matrix organizational structure whereby our two primary operating segments, Banking and Frost Wealth Advisors, overlap a regional reporting structure. A third operating segment, Non-Banks, is for the most part the parent holding company, as well as certain other insignificant non-bank subsidiaries of the parent that, for the most part, have little or no activity. A description of each segment, the methodologies used to measure segment financial performance and summarized operating results by segment are described in Note 15 - Operating Segments in the accompanying notes to consolidated financial statements included elsewhere in this report. Segment operating results are discussed in more detail below.
Banking
Net income for the three and six months ended June 30, 20222023 increased $3.0$42.3 million, or 2.7%37.2%, and decreased $15.3increased $123.8 million, or 6.9%60.4%, respectively, compared to the same periods in 2021.2022. The increase during the three months ended June 30, 20222023 was primarily the result of a $30.7$96.5 million increase in net interest income and a $6.5$2.4 million increase in non-interest income partly offset by a $27.9$35.9 million increase in non-interest expense, and a $6.2$10.8 million increase in income tax expense and a $9.9 million increase in credit loss expense. The decreaseincrease during the six months ended June 30, 20222023 was primarily the result of a $55.3 million increase in non-interest expense and a $10.1 million increase in income tax expense partly offset by a $38.7$246.6 million increase in net interest income and an $11.4a $7.3 million increase in non-interest income.
49

Table of Contents
income partly offset by a $79.2 million increase in non-interest expense, a $31.9 million increase in income tax expense and a $19.0 million increase in credit loss expense.
Net interest income for the three and six months ended June 30, 20222023 increased $30.7$96.5 million, or 11.9%33.4%, and $38.7$246.6 million, or 7.7%45.7%, respectively, compared to the same periods in 2021.2022. The increase during the three months ended June 30, 20222023 was primarily related to an increaseincreases in the average yield on loans and, to a lesser extent, the average volume of taxable securities,loans; an increase in the average yield on interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve); increases in the average volume of and to a much lesser extent,average yield on taxable securities; and an increase in the average volume oftax equivalent yield on tax-exempt securities.securities, among other things. The impact of these items was partly offset by increases in the average costs of interest-bearing deposit accounts and repurchase agreements, among other things, combined with a decrease in the average volume of loans combined with decreasesinterest-bearing deposits (primarily amounts held in an interest-bearing account at the average yields on loans and tax-exempt securitiesFederal Reserve) and increases in the average cost and average volume of interest-bearingtime deposit accounts (primarily money market deposit accounts) and an increase in the average cost of repurchase agreements.agreements, among other things. The increase during the six months ended June 30, 20222023 was primarily related to an increaseincreases in the average yield on loans and, to a lesser extent, the average volume of taxable securities andloans; an increase in the average yield on interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve); and to a much lesser extent, increases in the average volumes of and the average taxable-equivalent yields on taxable and tax-exempt securities, among other things. The impact of these items was partly offset by increases in the average costs of interest-bearing deposit accounts and repurchase agreements, among other things, combined with a decrease in the average volume of interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve). The impact of these items was partly offset by a decrease and increases in the average volume of loans combined with decreases in the average yields on loans, tax-exempt securitiestime deposit accounts and taxable securities; an increase in the average cost and average volume of interest-bearing deposits (primarily money market deposit accounts); and an increase in the average cost of repurchase agreements.agreements, among other things. See the analysis of net interest income included in the section captioned “Net Interest Income” included elsewhere in this discussion.
Credit loss expense/benefit was not significantexpense for the Banking segmentthree and six months ended June 30, 2023 totaled $9.9 million and $19.0 million, respectively. There was no credit loss expense during the reported periods.three and six months ended June 30, 2022. See the sections captioned “Credit Loss Expense” and “Allowance for Credit Losses” elsewhere in this discussion for further analysis of credit loss expense related to loans and off-balance-sheet commitments.
Non-interest income for the three months ended June 30, 20222023 increased $6.5$2.4 million, or 13.2%4.4%, compared to the same period in 2021,2022, while non-interest income for the six months ended June 30, 20222023 increased $11.4$7.3 million, or 11.1%6.4%, compared to the same period in 2021.2022. The increase during the three months ended June 30, 20222023 was primarily due to increases in serviceother charges, on deposit accounts; insurance commissions and fees;fees and other charges,insurance commissions and fees. The increase during the six months ended June 30, 20222023 was primarily duerelated to increases in insurance commissions and fees; other charges, commissions and fees and interchange and card transaction fees partly offset by a decrease in service charges on deposit accounts; other non-interest income; and other charges, commissions and fees. The increases in service charges on deposit accounts during the three and six months ended June 30, 2022 were primarily related to increases in overdraft charges on consumer and commercial accounts and commercial service charges. The increases in overdraft charges during the three and six months ended June 30, 2022 were impacted by increases in the volumes of fee assessed overdrafts relative to the same periods in 2021. Commercial service charges during the three and six months ended June 30, 2022 were primarily impacted by increases in the volumes of billable services compared to the same periods in 2021.accounts. The increase in insurance commissions and fees during the three months ended June 30, 2022,2023 was primarily related to an increase in commission income, while the result ofincrease during the six months ended June 30, 2023 was primarily related to increases in commission income and contingent income, which isincome. These changes are further discussed below in relation to Frost Insurance Agency. The increases in other charges, commissions and fees during the three and six months ended June 30, 20222023 were primarily related to increases in capital markets advisory fees, commitment fees on unused lines of credit, letter of credit fees and merchant services rebates/bonuses, among other things, and, additionally for the six months ended June 30, 2022, increases in letter of credit fees and funds transfer service charges.things. The increase in other non-interest incomeinterchange and card transaction fees during the six months ended June 30, 20222023 was primarily due to an increase in sundry and other miscellaneous income, which was impactedtransaction volumes partly offset by certain card related incentives/rebates, the recovery of prior write-offs, and the recognition of a contract fee. Other non-interest incomean increase in network costs. The decrease in service charges on deposit accounts during the six months ended June 30, 20222023 was also impactedprimarily due to a decrease in commercial service charges, largely due to a higher average earnings credit rate applied to deposits maintained by treasury management customers, partly offset by increases in public finance underwriting feesoverdraft charges on consumer and income from customer foreign exchange transactions,commercial accounts and consumer service charges due to
51

Table of Contents
increases in the volumes of fee assessed overdrafts relative to 2022, in part due to increasesgrowth in transaction volumes. These items were partly offset by decreases in gains on the salenumber of foreclosed and other assets and income from customer derivative and securities trading transactions, among other things.accounts. See the analysis of these categories of non-interest income included in the section captioned “Non-Interest Income” included elsewhere in this discussion.
Non-interest expense for three months ended June 30, 20222023 increased $27.9$35.9 million, or 15.3%17.0%, while non-interest expense for the six months ended June 30, 20222023 increased $55.3$79.2 million, or 15.3%19.0%, compared to the same respective periods in 2021.2022. The increases during the three and six months ended June 30, 20222023 were primarily due to increases in salaries and wages andwages; employee benefit expense; other non-interest expense and, to a lesser extent, increases in employee benefit expense; technology, furniture and equipment expense; net occupancy expense and net occupancy expense.deposit insurance.
The increases in salaries and wages during the three and six months ended June 30, 2022,2023, were primarily related to increases in salaries due to annual merit and market increases as well as the implementation of a $20 per hour minimum wage in December, 2021. Salaries and wages was also impacted by increases in the number of employees, increases in incentive compensation and, primarily during the six months ended June 30, 2022, a decrease in salary costs deferred in connection with loan originations as the first quarter of 2021 was impacted by the high volume of PPP loan originations.employees. The increase in other non-interest expense during the three months ended June 30, 2022number of employees was primarilypartly related to our investments in organic expansion in the Houston and Dallas markets as well as preparations for our mortgage loan product offering. Salaries and wages were also impacted, to a lesser extent, by increases in travel, mealsstock-based compensation and entertainment; professional services expense; sundry and other miscellaneous expenses; and advertising/promotions expense. Sundry and other miscellaneous expenses during the three months ended June 30, 2022 was impacted by the write-off of certain assets and certain settlements. The impact of the aforementioned items was partly offset by a decrease in donations expense, which was impacted by a $1.8 million contribution to the Frost Charitable Foundation in the second quarter of 2021, among other things. The
50

Table of Contents
increase in other non-interest expense during the six months ended June 30, 2022 was primarily related to increases in professional services expense; travel, meals and entertainment; advertising/promotions expense; and business development expense; among other things. Other non-interest expense during the six months ended June 30, 2022 was also impacted by a decrease in costs deferred as loan origination costs as the first quarter of 2021 was impacted by a large volume of PPP loan originations.incentive compensation. The increases in employee benefits expense during the three and six months ended June 30, 20222023 were primarily related to increases in payroll taxes, 401(k) plan expense, and medical benefits expense among other things, partly offset by increasesand payroll taxes, and decreases in the net periodic benefitsbenefit related to our defined benefit retirement plan.plan, among other things. The increases in other non-interest expense during the three and six months ended June 30, 2023 were primarily related to increases in professional services expense; advertising/promotions expense; travel, meals and entertainment; check card expense; business development expense and stationery, printing and supplies expense, among other things. The increases in technology, furniture and equipment expense during the three and six months ended June 30, 20222023 were primarily related to increases in cloud services expense depreciation of furniture and equipment and service contracts expense, among other things, partly offset by decreases in software maintenance.things. The increases in net occupancy during the three and six months ended June 30, 20222023 were primarily related to increases in repairs and maintenance/service contractslease expense, depreciation on buildings and leasehold improvements, and leaseutilities expense, among other things. The increases in the aforementioned components of net occupancy expense were impacted, in part, by our expansion within the Houston and Dallas market areas. The increases in deposit insurance during the three and six months ended June 30, 2023 were primarily related to an increase in the assessment rate. See the analysis of these categories of non-interest expense included in the section captioned “Non-Interest Expense” included elsewhere in this discussion.
Frost Insurance Agency, which is included in the Banking operating segment, had gross commission revenues of $11.8$12.9 million and $28.5$32.0 million during the three and six months ended June 30, 2022,2023, respectively, compared to $10.8$11.8 million and $28.2$28.5 million during the same respective periods in 2021.2022. The increase during the three months ended June 30, 20222023 was primarily related to increasesan increase in commission income and contingent income while the increase during the six months ended June 30, 20222023 was primarily related an increasedue to increases in both commission income mostly offset by a decrease inand contingent income. The increases in gross commission income during the three and six months ended June 30, 2022 were primarily related to increases in life insurance commissions, benefit plan commissions, and commercial and personal lines property and casualty commissions. The increases in life insurance commissions were primarily due to increased business volumes while the increases in commercial and personal lines property and casualty commissions and benefit plan commissions duewere primarily related to increases in business volumesthe underlying exposure bases and market rates, partly offset by decreasesincreases in life insurance commissions, due to decreased business volumes.rates. The decreaseincrease in contingent income during the six months ended June 30, 20222023 was primarily related to a decreasean increase in performance related contingent payments due to low growth within the portfolio and a deteriorationimprovement in the loss performance of insurance policies previously placed. The decrease in performance related contingent commissions during was partly offset by an increase in contingent commissions received from various benefit plan insurance companies. See the analysis of insurance commissions and fees included in the section captioned “Non-Interest Income” included elsewhere in this discussion.
Frost Wealth Advisors
Net income for the three and six months ended June 30, 2022 decreased $1.72023 increased $1.4 million, or 16.7%16.8%, and increased $543 thousand,decreased $1.1 million, or 3.0%6.1%, respectively, compared to the same periods in 2021.2022. The decreaseincrease during the three months ended June 30, 20222023 was primarily the result of a $3.1 million increase in non-interest expense partly offset by a $520 thousand increase in non-interest income, a $457 thousand decrease in income tax expense and a $450 thousand increase in net interest income. The increase during the six months June 30, 2022 ended was primarily the result of a $4.1 million increase in non-interest income and a $664 thousand$1.1 million increase in net interest income partly offset by a $4.1$2.4 million increase in non-interest expense and a $384 thousand increase in income tax expense. The decrease during the six months ended June 30, 2023 was primarily the result of a $5.4 million increase in non-interest expense partly offset by a $2.1 million increase in net interest income, a $1.9 million increase in non-interest income and a $304 thousand decrease in income tax expense.
Net interest income for the three and six months ended June 30, 20222023 increased $450 thousand,$1.1 million, or 88.6%118.2%, and increased $664 thousand,$2.1 million, or 66.8%125.8%, respectively, compared to the same periods in 2021.2022. The increases during the three and six months ended June 30, 20222023 were primarily due to an increases in the average volume of funds provided by Frost Wealth Advisors and an increase in the average funds transfer prices allocated to such funds.funds provided by Frost Wealth Advisors. See the analysis of net interest income included in the section captioned “Net Interest Income” included elsewhere in this discussion.

52

Table of Contents
Non-interest income for the three and six months ended June 30, 20222023 increased $520 thousand,$3.1 million, or 1.2%7.2%, and increased $4.1$1.9 million, or 5.0%2.2%, respectively, compared to the same periods in 2021.2022. The increase during the three months ended June 30, 2022 was primarily due to a increases in other charges, commissions and fees and other non-interest income partly offset by a decrease in trust and investment management fees. The increase during the six months ended June 30, 20222023 was primarily due to increases in trust and investment management fees and other non-interest income. The increase during the six months ended June 30, 2023 was primarily due to increases in other non-interest income and other charges, commissions and fees partly offset by a decrease in trust and investment management fees. Trust and investment management fee income is the most significant income component for Frost Wealth Advisors. Investment management fees are the most significant component of trust and investment management fees, making up approximately 79.6%78.5% of total trust and investment management fees for the first six months of 2022.
2023. The decreaseincrease in trust and investment management fees during the three months ended June 30, 20222023 was primarily due to decreasesincreases in real estate fees, estate fees and investment management fees among other things, mostlypartly offset by an increasea decrease in oil and gas fees. The increasedecrease in trust and investment management fees during the six months ended June 30, 20222023 was primarily due to increasesdecreases in investment management fees and oil and gas fees investment management fees andpartly offset by increases in real estate fees partly offset by a decrease inand estate fees. The increase in investment management fees during sixthe three months ended June 30, 20222023 was primarily related to higheran increase in the average equity valuations as well as an increasevolume of assets maintained in accounts, despite a slight decrease in the number of accounts. The decrease in investment management fees during threethe six months ended June 30, 2023 was partly related to the recognition of certain non-recurring revenues in 2022 wasas well as lower average equity and bond valuations relative to 2022. The increases in estate fees and real estate fees during the three and six months ended June 30, 2023 were primarily related to the sharp declineincreases in equity valuations during the second quarter of 2022. Oiltransaction volumes. The decreases in oil and gas fees during the three and six months ended June 30, 2022 were impacted by increases in oil and gas prices. The fluctuations
51

Table of Contents
in estate fees and real estate fees during the comparable periods2023 were primarily related to variationslower average market prices in transaction volumes.2023 relative to 2022. The increases in other charges, commissions and feesnon-interest income during the three and six months ended June 30, 20222023 were primarily related to increases in income from customer securities trading transactions and sundry income, primarily related to a volume bonus received from Frost Brokerage Services' clearing broker. The increase in other charges, commissions and fees during the six months ended June 30, 2023 was primarily related to an increase in income from the placement of money market accounts, among other things, partly offset by decreases in income from the sale of mutual funds, among other things. The increase in other non-interest income during the three months ended June 30, 2022 was primarily related to an increase in income from customer securities trading transactions. See the analysis of trust and investment management fees and other charges, commissions and fees included in the section captioned “Non-Interest Income” included elsewhere in this discussion.
Non-interest expense for the three and six months ended June 30, 20222023 increased $3.1$2.4 million, or 10.5%7.2%, and increased $4.1$5.4 million, or 6.9%8.5%, respectively, compared to the same periods in 2021.2022. The increases during the three and six months ended June 30, 20222023 were primarily due to increases in salaries and wages, and other non-interest expense, and to a lesser extent, increases in employee benefits expense and technology, furniture and equipmentnet occupancy expense. The increases in salaries and wages during the three and six months ended June 30, 2022 were primarily due to increases in incentive compensation and commission expense as well as increasesan increase in salaries, due to annual merit and market increases.increases, as well as increases in commission expense. The increases in other non-interest expense during the three and six months ended June 30, 20222023 were mostlyprimarily related to increases in sundry and other miscellaneous expenses, which was primarily related to the write-off of certain assets; and travel, meals and entertainment; among other things. Other non-interest expense for the six months ended June 30, 2022 was also impacted by an increase in research and platform fees. These increases were partly offset by decreases in the corporate overhead expense allocation during the three and, six months ended June 30, 2022 compared to the same periodsa lesser extent, increases in 2021.professional service expense, among other things, partly offset by decreases in sundry expense and research and platform fees, among other things. The increases in employee benefits during the three and six months ended June 30, 20222023 were primarilypartly related to increases in 401(k) planmedical benefits expense and medical benefits expense. Employee benefitspayroll taxes, among other things. The increase during the six months ended June 30, 20222023 was also impacted bypartly related to an increase in payroll taxes.401(k) plan expense. The increases in technology, furniture and equipmentnet occupancy expense during the three and six months ended June 30, 20222023 were primarily related to increases in cloud services expenses.lease expense.
Non-Banks
The Non-Banks operating segment had net losses of $3.2$4.0 million and $5.6$6.7 million during the three and six months ended June 30, 2022,2023, respectively, compared to net lossesloss of $2.9$3.2 million and $4.5$5.6 million during the same respective periods in 2021.2022. The increase in the net loss during the three months ended June 30, 2022 was primarily due to a decrease in other non-interest income and an increaseincreases in net interest expense partly offset by an increase in net income tax benefit. The increase in the net loss during the six months ended June 30, 2022 was primarily due to a decrease in other non-interest income, an increase in non-interest expense, a decrease in net income tax benefit and an increase in net interest expense. The decreases in other non-interest incomelosses during the three and six months ended June 30, 20222023 were primarily due to decreases in mineral interest income as the related mineral interest assets were donated to the Frost Charitable Foundation during the third quarter of 2021. The net income tax benefit during the six months ended June 30, 2022 was impacted by the aforementioned donation due to the elimination of certain related tax deductions. The increase in other non-interest expense during the six months ended June 30, 2022 was primarily due to increases in travel, meals and entertainment and professional service expense. The increases in net interest expense during the three and six months ended June 30, 2022 were primarily relateddue to increasesan increase in the average raterates paid on our long termlong-term borrowings partly offset by the impact of the redemption, during the fourth quarter of 2021, of $13.4 million of junior subordinated deferrableincreases in interest debentures issued to WNB Capital Trust I.income received on resell agreements.
Income Taxes
During the three months ended June 30, 2022,2023, we recognized income tax expense of $31.7 million, for an effective tax rate of 16.4%, compared to $20.7 million, for an effective tax rate of 14.8%, compared to $15.1for the same period in 2022. During the six months ended June 30, 2023, we recognized income tax expense of $64.9 million, for an effective tax rate of 11.3%16.0%, for the same period in 2021. During the six months ended June 30, 2022, we recognized income tax expense ofcompared to $33.3 million, for an effective tax rate of 13.2%, compared to $23.0 million, for an effective tax rate of 8.9%, for the same period in 2021.2022. The effective income tax rates differed from the U.S. statutory federal income tax rate of 21% during 20222023 and 20212022 primarily due to the effect of tax-exempt income from securities, loans securities and life insurance policies and the income tax effects associated with stock-based compensation, among other things, and their relative proportion to total pre-tax net income. The increase in the effective tax rates during 2022 were2023 was primarily related to increasesan increase in projected pre-tax net income and, to a lesser extent, increases in disallowed deposit interest expense and deposit insurance premiums and a decrease in discrete tax benefits associated with stock-based compensation.

compensation, among other things.
5253

Table of Contents
Average Balance Sheet
Average assets totaled $50.7$50.3 billion for the six months ended June 30, 20222023 representing an increasea decrease of $6.6 billion,$391.0 million, or 15.0%0.8%, compared to average assets for the same period in 2021.2022. Earning assets increased $6.2 billion,decreased $699.9 million, or 15.1%1.5%, during the first six months of 2022ended June 30, 2023 compared to the same period in 2021.2022. The increasedecrease in earning assets was primarily related to a $5.6 billion increase in average taxable securities and a $1.8 billion increasedecrease in average interest-bearing deposits (primarily amounts held in an interest-bearing account at the Federal Reserve) and a $36.7 million decrease in tax-exempt securities partly offset by a $932.7$3.9 billion increase in average taxable securities and a $961.3 million decreaseincrease in average loans. Average deposits increased $7.0decreased $2.0 billion, or 19.0%4.5%, during the first six months of 2022ended June 30, 2023 compared to the same period in 2021. Growth in average deposits was related to increased customer balances as well as new customer accounts.2022. The increasedecrease included a $2.3$2.2 billion increasedecrease in non-interest bearingnon-interest-bearing deposits andpartly offset by a $4.7 billion$257.7 million increase in interest-bearing deposit accounts. Average non-interest bearingnon-interest-bearing deposits made up 41.4%38.0% and 43.1%41.4% of average total deposits during the first six months ofended June 30, 2023 and 2022, and 2021, respectively.
Loans
Details of our loan portfolio are presented in Note 3 - Loans in the accompanying notes to consolidated financial statements included elsewhere in this report. Loans increased $399.6$591.3 million, or 2.4%3.4%, from $16.3$17.2 billion at December 31, 20212022 to $16.7$17.7 billion at June 30, 2022. As further discussed below, during the second quarter of 2020, we began originating loans to qualified small businesses under the Paycheck Protection Program (“PPP”) administered by the SBA under the provisions of the CARES Act. Excluding PPP loans, total loans would have otherwise increased $736.6 million, or 4.6%, from $15.9 billion at December 31, 2021 to $16.6 billion at June 30, 2022.2023. The majority of our loan portfolio is comprised of commercial and industrial loans, energy loans, and real estate loans. Real estate loans include both commercial and consumer balances. Selected details related to our loan portfolio segments are presented below. Refer to our 20212022 Form 10-K for a more detailed discussion of our loan origination and risk management processes.
Commercial and Industrial. Commercial and industrial loans increased $174.3 million, or 3.2%, from $5.4totaled $5.7 billion at both June 30, 2023 and December 31, 2021 to $5.5 billion at June 30, 2022. Our commercial and industrial loans are a diverse group of loans to small, medium and large businesses. The purpose of these loans varies from supporting seasonal working capital needs to term financing of equipment. While some short-term loans may be made on an unsecured basis, most are secured by the assets being financed with collateral margins that are consistent with our loan policy guidelines. The commercial and industrial loan portfolio also includes commercial leases and purchased shared national credits ("SNC"s).
Energy. Energy loans include loans to entities and individuals that are engaged in various energy-related activities including (i) the development and production of oil or natural gas, (ii) providing oil and gas field servicing, (iii) providing energy-related transportation services, (iv) providing equipment to support oil and gas drilling, (v) refining petrochemicals, or (vi) trading oil, gas and related commodities. Energy loans decreased $89.9increased $60.8 million, or 8.3%6.6%, from $1.1 billion$925.7 million at December 31, 20212022 to $987.9$986.6 million at June 30, 2022. We2023. While we have recently made efforts to reduce our exposure to energy loans. Nonetheless energy loans, such loans nonetheless remain one of our largest industry concentrationconcentrations totaling 5.9%5.6% of total loans (also 5.9% excluding PPP loans) at June 30, 2022, down2023, up from 6.6%5.4% of total loans (6.8% excluding PPP loans) at December 31, 2021.2022. The average loan size, the significance of the portfolio and the specialized nature of the energy industry requires a highly prescriptive underwriting policy. Exceptions to this policy are rarely granted. Due to the large borrowing requirements of this customer base, the energy loan portfolio includes participations and SNCs.
Purchased Shared National Credits. Purchased shared national creditsSNCs are participations purchased from upstream financial organizations and tend to be larger in size than our originated portfolio. Our purchased SNC portfolio totaled $707.8$745.7 million at June 30, 2022, increasing $9.52023, decreasing $44.8 million, or 1.4%5.7%, from $698.4$790.5 million at December 31, 2021.2022. At June 30, 2022, 30.1%2023, 33.6% of outstanding purchased SNCs were related to the construction industry while 25.8%19.4% were related to the energy industry, 13.7%12.5% were related to the financial services industry and 12.1%12.2% were related to the real estate management industry. The remaining purchased SNCs were diversified throughout various other industries, with no other single industry exceeding 10% of the total purchased SNC portfolio. Additionally, almost all of the outstanding balance of purchased SNCs was included in the energy and commercial and industrial portfolio, with the remainder included in the real estate categories. SNC participations are originated in the normal course of business to meet the needs of our customers. As a matter of policy, we generally only participate in SNCs for companies headquartered in or which have significant operations within our market areas. In addition, we must have direct access to the company’s management, an existing banking relationship or the expectation of broadening the relationship with other banking products and services within the following 12 to 24 months. SNCs are reviewed at least quarterly for credit quality and business development successes.

53

Table of Contents
Commercial Real Estate. Commercial real estate loans increased $479.5$209.6 million, or 6.3%2.6%, from $7.6$8.2 billion at December 31, 20212022 to $8.1$8.4 billion at June 30, 2022.2023. Commercial real estate loans represented 83.8%79.5% of total real estate loans at June 30, 20222023 compared to 84.3%81.6% at December 31, 2021.2022. The majority of our commercial real estate loan portfolio consists of commercial real estate mortgages, which includes both permanent and intermediate term loans. These loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Consequently, these loans must undergo the analysis and underwriting process of a commercial and industrial loan, as well as that of a real estate loan. At June 30, 2022,2023, approximately 48.8%51.0% of the outstanding principal balance of our commercial real estate loans were secured by owner-occupied properties.
54

Table of Contents
Consumer Real Estate and Other Consumer Loans. The consumer real estate loan portfolio including all consumer real estate and consumer installment loans, increased $150.2$314.4 million, or 10.6%17.1%, from $1.9$1.8 billion at December 31, 20212022 to $2.1$2.2 billion at June 30, 2022.2023. Combined, home equity loans and lines of credit made up 61.3%60.5% and 59.8%61.9% of the consumer real estate loan total at June 30, 20222023 and December 31, 2021,2022, respectively. We offer home equity loans up to 80% of the estimated value of the personal residence of the borrower, less the value of existing mortgages and home improvement loans. We havePrior to 2023, we did not generally originatedoriginate 1-4 family mortgage loans since 2000;loans; however, from time to time, we investeddid invest in such loans to meet the needs of our customers or for other regulatory compliance purposes. Nonetheless, we expectWe began offering 1-4 family mortgage loans to begin regularour employees during the first quarter of 2023 and began limited production of 1-4 family mortgage loans for customers in the second quarter of 2023. Our 1-4 family mortgage loan production is intended to be for portfolio investment purposes in late 2022.purposes. Nonetheless, 1-4 family mortgage loans are not a significant component of our consumer real estate portfolio. Consumer and other loans increased $22.4decreased $33.0 million, or 4.7%6.7%, from December 31, 2021.2022. The consumer and other loan portfolio primarily consists of automobile loans, overdrafts, unsecured revolving credit products, personal loans secured by cash and cash equivalents and other similar types of credit facilities.
Paycheck Protection Program. We have originated loans to qualified small businesses under the PPP administered by the SBA under the provisions of the CARES Act. Loans covered by the PPP may be eligible for loan forgiveness for certain costs incurred related to payroll, group health care benefit costs and qualifying mortgage, rent and utility payments. The remaining loan balance after forgiveness of any amounts is still fully guaranteed by the SBA. Refer to the 20212022 Form 10-K for additional details.
During the six months ended June 30, 2022, we recognized approximately $2.6 million in PPP loan related deferred processing fees (net of amortization of related deferred origination costs) as a yield adjustment and this amount is included in interest income on loans. During the six months ended June 30, 2021, we recognized approximately $62.3 million in PPP loan related deferred net processing fees. As a result of the inclusion of these net fees in interest income, the average yields on PPP loans were 3.32% during the six months ended June 30, 2022, and 5.60% during the six months ended June 30, 2021 compared to the stated interest rate of 1.0% on these loans. PPP related deferred processing fees and deferred origination costs are not expected to significantly impact interest income on loans in future periods.
Accruing Past Due Loans. Accruing past due loans are presented in the following tables. Also see Note 3 - Loans in the accompanying notes to consolidated financial statements included elsewhere in this report.
Accruing Loans
30-89 Days Past Due
Accruing Loans
90 or More Days Past Due
Total Accruing
Past Due Loans
Total
Loans
AmountPercent of Loans in CategoryAmountPercent of Loans in CategoryAmountPercent of Loans in Category
June 30, 2022
Commercial and industrial$5,539,277 $12,369 0.22 %$3,280 0.06 %$15,649 0.28 %
Energy987,925 200 0.02 — — 200 0.02 
Paycheck Protection Program91,919 5,919 6.44 5,063 5.51 10,982 11.95 
Commercial real estate:
Buildings, land and other6,520,280 17,693 0.27 781 0.01 18,474 0.28 
Construction1,535,808 832 0.05 — — 832 0.05 
Consumer real estate1,561,035 6,921 0.44 903 0.06 7,824 0.50 
Consumer and other499,782 4,443 0.89 598 0.12 5,041 1.01 
Total$16,736,026 $48,377 0.29 $10,625 0.06 $59,002 0.35 
Excluding PPP loans$16,644,107 $42,458 0.26 $5,562 0.03 $48,020 0.29 
54

Table of Contents
Accruing Loans
30-89 Days Past Due
Accruing Loans
90 or More Days Past Due
Total Accruing
Past Due Loans
Accruing Loans
30-89 Days Past Due
Accruing Loans
90 or More Days Past Due
Total Accruing
Past Due Loans
Total
Loans
AmountPercent of Loans in CategoryAmountPercent of Loans in CategoryAmountPercent of Loans in CategoryTotal
Loans
AmountPercent of Loans in CategoryAmountPercent of Loans in CategoryAmountPercent of Loans in Category
December 31, 2021
June 30, 2023June 30, 2023
Commercial and industrialCommercial and industrial$5,364,954 $29,491 0.55 %$7,802 0.15 %$37,293 0.70 %Commercial and industrial$5,726,804 $27,789 0.49 %$3,025 0.05 %$30,814 0.54 %
EnergyEnergy1,077,792 1,353 0.13 215 0.02 1,568 0.15 Energy986,571 2,222 0.23 — — 2,222 0.23 
Paycheck Protection ProgramPaycheck Protection Program428,882 4,979 1.16 18,766 4.38 23,745 5.54 Paycheck Protection Program22,333 80 0.36 2,725 12.20 2,805 12.56 
Commercial real estate:Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other6,272,339 37,033 0.59 8,687 0.14 45,720 0.73 Buildings, land and other6,924,896 28,443 0.41 568 0.01 29,011 0.42 
ConstructionConstruction1,304,271 188 0.01 — — 188 0.01 Construction1,468,071 669 0.05 118 0.01 787 0.06 
Consumer real estateConsumer real estate1,410,790 4,866 0.34 2,177 0.15 7,043 0.49 Consumer real estate2,157,916 8,754 0.41 5,039 0.23 13,793 0.64 
Consumer and otherConsumer and other477,369 4,185 0.88 1,076 0.23 5,261 1.11 Consumer and other459,720 5,153 1.12 336 0.07 5,489 1.19 
TotalTotal$16,336,397 $82,095 0.50 $38,723 0.24 $120,818 0.74 Total$17,746,311 $73,110 0.41 $11,811 0.07 $84,921 0.48 
Excluding PPP loansExcluding PPP loans$15,907,515 $77,116 0.48 $19,957 0.13 $97,073 0.61 Excluding PPP loans$17,723,978 $73,030 0.41 $9,086 0.05 $82,116 0.46 
December 31, 2022December 31, 2022
Commercial and industrialCommercial and industrial$5,674,798 $30,769 0.54 %$5,560 0.10 %$36,329 0.64 %
EnergyEnergy925,729 1,472 0.16 — — 1,472 0.16 
Paycheck Protection ProgramPaycheck Protection Program34,852 5,321 15.27 13,867 39.79 19,188 55.06 
Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other6,706,078 23,561 0.35 5,664 0.08 29,225 0.43 
ConstructionConstruction1,477,247 — — — — — — 
Consumer real estateConsumer real estate1,843,539 7,856 0.43 2,398 0.13 10,254 0.56 
Consumer and otherConsumer and other492,726 5,155 1.05 311 0.06 5,466 1.11 
TotalTotal$17,154,969 $74,134 0.43 $27,800 0.16 $101,934 0.59 
Excluding PPP loansExcluding PPP loans$17,120,117 $68,813 0.40 $13,933 0.08 $82,746 0.48 
Accruing past due loans at June 30, 20222023 decreased $61.8$17.0 million compared to December 31, 2021.2022. The decrease was primarily related to decreases in past due non-construction related commercial real estatePPP loans (down $27.2$16.4 million), and past due commercial and industrial loans (down $21.6$5.5 million) andpartly offset by an increase in past due PPPpast due consumer real estate loans (down $12.8(up $3.5 million). PPP loans are fully guaranteed by the SBA and we expect to collect all amounts due related to these loans. Excluding PPP loans, accruing past due loans decreased $49.1 million.$630 thousand.

55

Table of Contents
Non-Accrual Loans. Non-accrual loans are presented in the table below. Also see in Note 3 - Loans in the accompanying notes to consolidated financial statements included elsewhere in this report.
June 30, 2022December 31, 2021June 30, 2023December 31, 2022
Non-Accrual LoansNon-Accrual LoansNon-Accrual LoansNon-Accrual Loans
Total
Loans
AmountPercent of Loans in CategoryTotal
Loans
AmountPercent of Loans in CategoryTotal
Loans
AmountPercent of Loans in CategoryTotal
Loans
AmountPercent of Loans in Category
Commercial and industrialCommercial and industrial$5,539,277 $11,170 0.20 %$5,364,954 $22,582 0.42 %Commercial and industrial$5,726,804 $22,217 0.39 %$5,674,798 $18,130 0.32 %
EnergyEnergy987,925 11,114 1.12 1,077,792 14,433 1.34 Energy986,571 16,712 1.69 925,729 15,224 1.64 
Paycheck Protection ProgramPaycheck Protection Program91,919 — — 428,882 — — Paycheck Protection Program22,333 — — 34,852 — — 
Commercial real estate:Commercial real estate:Commercial real estate:
Buildings, land and otherBuildings, land and other6,520,280 11,806 0.18 6,272,339 15,297 0.24 Buildings, land and other6,924,896 25,682 0.37 6,706,078 3,552 0.05 
ConstructionConstruction1,535,808 — — 1,304,271 948 0.07 Construction1,468,071 — — 1,477,247 — — 
Consumer real estateConsumer real estate1,561,035 1,035 0.07 1,410,790 440 0.03 Consumer real estate2,157,916 3,170 0.15 1,843,539 927 0.05 
Consumer and otherConsumer and other499,782 — — 477,369 13 — Consumer and other459,720 — — 492,726 — — 
TotalTotal$16,736,026 $35,125 0.21 $16,336,397 $53,713 0.33 Total$17,746,311 $67,781 0.38 $17,154,969 $37,833 0.22 
Excluding PPP loans$16,644,107 $35,125 0.21 $15,907,515 $53,713 0.34 
Allowance for credit losses on loansAllowance for credit losses on loans$239,632 $248,666 Allowance for credit losses on loans$233,619 $227,621 
Ratio of allowance for credit losses on loans to non-accrual loansRatio of allowance for credit losses on loans to non-accrual loans682.23 %462.95 %Ratio of allowance for credit losses on loans to non-accrual loans344.67 %601.65 %
Non-accrual loans at June 30, 2022 decreased $18.62023 increased $29.9 million from December 31, 20212022 primarily due to decreasesan increase in non-accrual commercial real estate - buildings, land and other loans, which was mostly related to a single credit relationship; and, to a lesser extent, increases in non-accrual commercial and industrial loans, and, to a lesser extent, commercialconsumer real estate and energy loans. The decreases were primarily related to principal payments, loans returning to accrual and charge offs.
Generally, loans are placed on non-accrual status if principal or interest payments become 90 days past due and/or management deems the collectibility of the principal and/or interest to be in question, as well as when required by regulatory requirements. Once interest accruals are discontinued, accrued but uncollected interest is charged to current year operations. Subsequent receipts on non-accrual loans are recorded as a reduction of principal, and interest income is recorded only after principal recovery is reasonably assured. Classification of a loan as non-accrual does not preclude the ultimate collection of loan principal or interest. ThereNon-accrual commercial and industrial loans included one credit relationship in excess of $5.0 million totaling $16.0 million at June 30, 2023, while there were no non-accrual commercial and industrial loans in excess of $5.0 million at June 30, 2022 or December 31, 2021.2022. Non-accrual energy loans included one credit relationship in excess of $5.0 million totaling $7.6$7.2 million at June 30, 2022. This credit relationship was previously reported as2023. There were two non-accrual energy loan relationships in excess of $5.0 million with an aggregate balance of $9.6$11.1 million at
55

Table of Contents
December 31, 2021.2022. The decreaseaggregate balance of these loans totaled $8.1 million at June 30, 2023 and neither credit relationship exceeded $5.0 million as of that date. The decreases in the aggregate balance of thisthese credit relationship waswere related to principal payments made by the borrower.these borrowers. Non-accrual real estate loans primarily consist of land development, 1-4 family residential construction credit relationships and loans secured by office buildings and religious facilities. There was one non-accrual commercial real estate loan in excess of $5.0 million totaling $18.3 million at June 30, 2023, while there were no non-accrual commercial real estate loans in excess of $5.0 million at June 30, 2022 or December 31, 2021.2022.
Allowance for Credit Losses
In the case of loans and securities, allowances for credit losses are contra-asset valuation accounts, calculated in accordance with Accounting Standards Codification (“ASC”) Topic 326 (“ASC 326”) Financial Instruments - Credit Losses, that are deducted from the amortized cost basis of these assets to present the net amount expected to be collected. In the case of off-balance-sheet credit exposures, the allowance for credit losses is a liability account, calculated in accordance with ASC 326, reported as a component of accrued interest payable and other liabilities in our consolidated balance sheets. The amount of each allowance account represents management's best estimate of current expected credit losses (“CECL”) on these financial instruments considering available information, from internal and external sources, relevant to assessing exposure to credit loss over the contractual term of the instrument. Relevant available information includes historical credit loss experience, current conditions and reasonable and supportable forecasts. While historical credit loss experience provides the basis for the estimation of expected credit losses, adjustments to historical loss information may be made for differences in current portfolio-specific risk characteristics, environmental conditions or other relevant factors. While management utilizes its best judgment and information available, the ultimate adequacy of our allowance accounts is dependent upon a variety of factors beyond our control, including the performance of our portfolios, the economy, changes in interest rates and the view of the regulatory authorities toward classification of assets. See our 20212022 Form 10-K for additional information regarding our accounting policies
56

Table of Contents
related to credit losses. Also see Note 3 - Loans in the accompanying notes to consolidated financial statements for information related to model updates during the first quarter of 2023.
Allowance for Credit Losses - Loans. The table below provides, as of the dates indicated, an allocation of the allowance for loan losses by loan portfolio segment; however, allocation of a portion of the allowance to one segment does not preclude its availability to absorb losses in other segments.
Amount of Allowance AllocatedPercent of Loans in Each Category to Total LoansTotal
Loans
Ratio of Allowance Allocated to Loans in Each CategoryAmount of Allowance AllocatedPercent of Loans in Each Category to Total LoansTotal
Loans
Ratio of Allowance Allocated to Loans in Each Category
June 30, 2022
June 30, 2023June 30, 2023
Commercial and industrialCommercial and industrial$87,270 33.1 %$5,539,277 1.58 %Commercial and industrial$75,166 32.3 %$5,726,804 1.31 %
EnergyEnergy16,267 5.9 987,925 1.65 Energy14,929 5.6 986,571 1.51 
Paycheck Protection ProgramPaycheck Protection Program— 0.5 91,919 — Paycheck Protection Program— 0.1 22,333 — 
Commercial real estateCommercial real estate117,106 48.2 8,056,088 1.45 Commercial real estate120,926 47.3 8,392,967 1.44 
Consumer real estateConsumer real estate6,854 9.3 1,561,035 0.44 Consumer real estate13,035 12.2 2,157,916 0.60 
Consumer and otherConsumer and other12,135 3.0 499,782 2.43 Consumer and other9,563 2.5 459,720 2.08 
TotalTotal$239,632 100.0 %$16,736,026 1.43 Total$233,619 100.0 %$17,746,311 1.32 
Excluding PPP loans$239,632 $16,644,107 1.44 %
December 31, 2021
December 31, 2022December 31, 2022
Commercial and industrialCommercial and industrial$72,091 32.9 %$5,364,954 1.34 %Commercial and industrial$104,237 33.1 %$5,674,798 1.84 %
EnergyEnergy17,217 6.6 1,077,792 1.60 Energy18,062 5.4 925,729 1.95 
Paycheck Protection ProgramPaycheck Protection Program— 2.6 428,882 — Paycheck Protection Program— 0.2 34,852 — 
Commercial real estateCommercial real estate144,936 46.4 7,576,610 1.91 Commercial real estate90,301 47.7 8,183,325 1.10 
Consumer real estateConsumer real estate6,585 8.6 1,410,790 0.47 Consumer real estate8,004 10.7 1,843,539 0.43 
Consumer and otherConsumer and other7,837 2.9 477,369 1.64 Consumer and other7,017 2.9 492,726 1.42 
TotalTotal$248,666 100.0 %$16,336,397 1.52 Total$227,621 100.0 %$17,154,969 1.33 
Excluding PPP loans$248,666 $15,907,515 1.56 
The allowance allocated to commercial and industrial loans totaled $87.3$75.2 million, or 1.58%1.31% of total commercial and industrial loans, at June 30, 2022 increasing $15.22023 decreasing $29.1 million, or 21.1%27.9%, compared to $72.1$104.2 million, or 1.34%1.84% of total commercial and industrial loans, at December 31, 2021.2022. Modeled expected credit losses increased $1.8decreased $15.5 million while qualitative factor (“Q-Factor”) and other qualitative adjustments related to commercial and industrial loans increased $20.5decreased $10.0 million. Specific allocations for commercial and industrial loans that were evaluated for expected credit losses on an individual basis decreased $7.2$3.6 million from $10.5$6.1 million at December 31, 20212022 to $3.4$2.5 million at June 30, 2022.2023. The decrease in specific allocations for commercial and industrial loans was primarily related to principal payments received and the recognition of charge-offs.
56

Table of Contents
The allowance allocated to energy loans totaled $16.3$14.9 million, or 1.65%1.51% of total energy loans, at June 30, 20222023 decreasing $950 thousand,$3.1 million, or 5.5%17.3%, compared to $17.2$18.1 million, or 1.60%1.95% of total energy loans, at December 31, 2021.2022. Modeled expected credit losses related to energy loans decreased $257 thousand$2.8 million while Q-Factor and other qualitative adjustments related to energy loans decreased $1.4increased $1.3 million. Specific allocations for energy loans that were evaluated for expected credit losses on an individual basis totaled $6.2$2.7 million at June 30, 2022 increasing $692 thousand2023 decreasing $1.7 million compared to $5.5$4.4 million on December 31, 2021.2022. The decrease in specific allocations for energy loans was related to principal payments received and loans no longer requiring a specific allocation.
The allowance allocated to commercial real estate loans totaled $117.1$120.9 million, or 1.45%1.44% of total commercial real estate loans, at June 30, 2022 decreasing $27.82023 increasing $30.6 million, or 19.2%33.9%, compared to $144.9$90.3 million, or 1.91%1.10% of total commercial real estate loans, at December 31, 2021.2022. Modeled expected credit losses related to commercial real estate loans increased $3.4decreased $11.5 million while Q-Factor and other qualitative adjustments related to commercial real estate loans decreased $32.3increased $42.6 million. Specific allocations for commercial real estate loans that were evaluated for expected credit losses on an individual basis increaseddecreased from $400 thousand$1.7 million at December 31, 20212022 to $1.5$1.3 million at June 30, 2022.2023. The decrease in specific allocations for commercial real estate loans was related to principal payments received and loans no longer requiring a specific allocation partly offset by new specific allocations for new individually assessed loans.
The allowance allocated to consumer real estate loans totaled $6.9$13.0 million, or 0.44%0.60% of total consumer real estate loans, at June 30, 20222023 increasing $269 thousand,$5.0 million, or 4.1%62.9%, compared to $6.6$8.0 million, or 0.47%0.43% of total consumer real estate loans, at December 31, 2021.2022. Modeled expected credit losses related to consumer real estate loans increased $155 thousand$4.7 million while Q-Factor and other qualitative adjustments related to consumer real estate loans increased $68$284 thousand.

57

Table of Contents
The allowance allocated to consumer loans totaled $12.1$9.6 million, or 2.43%2.08% of total consumer loans, at June 30, 20222023 increasing $4.3$2.5 million, or 54.8%36.3%, compared to $7.8$7.0 million, or 1.64%1.42% of total consumer loans, at December 31, 2021.2022. Modeled expected credit losses related to consumer loans increased $3.2 million, which was impacted by increasingly negative trends related to overdraft charge-offs.$528 thousand while Q-Factor and other qualitative adjustments increased $1.1$2.0 million, which was primarily due to an increase in the consumer overlay, which is further discussed below.
As more fully described in our 20212022 Form 10-K, we measure expected credit losses over the life of each loan utilizing a combination of models which measure probability of default and loss given default, among other things. The measurement of expected credit losses is impacted by loan/borrower attributes and certain macroeconomic variables. Models are adjusted to reflect the current impact of certain macroeconomic variables as well as their expected changes over a reasonable and supportable forecast period.
In estimating expected credit losses as of June 30, 2022,2023, we utilized the Moody’s Analytics June 20222023 Consensus Scenario (the “June 20222023 Consensus Scenario”) to forecast the macroeconomic variables used in our models. The June 20222023 Consensus Scenario was based on the review of a variety of surveys of baseline forecasts of the U.S. economy. The June 20222023 Consensus Scenario projections included, among other things, (i) U.S. Nominal Gross Domestic Product annualized quarterly growth rate of 6.80% in2.40% during the second halfremainder of 20222023 followed by average annualized quarterly growth rates of 4.10%3.38% in 20232024 and 4.30%4.69% through the end of the forecast period in the second quarter of 2024;2025; (ii) average U.S. unemployment rate of 3.57%4.12% during the remainder of 2023 followed by average annualized quarterly rates of 4.67% in the second half of 20222024 and remaining fairly flat through the end of the forecast period where it is projected to be 3.58% in the second quarter of 2024; (iii) average Texas unemployment rate of 4.11% in the second half of 2022 and improving to 3.57% by the end of the forecast in the second quarter of 2024; (iv) projected average 10 year Treasury rate of 2.95% in the second half of 2022, and remaining fairly flat4.57% through the end of the forecast period in the second quarter of 2025; (iii) average Texas unemployment rate of 4.31% during the remainder of 2023 followed by average annualized quarterly rates of 4.48% in 2024 where it isand 4.31% through the end of the forecast period in the second quarter of 2025; (iv) projected average 10 year Treasury rate of 3.64% during the remainder of 2023, decreasing to be 2.91%.3.57% during 2024 and 3.45% by the end of the forecast period in the second quarter of 2025 and (v) average oil price of $81.46 per barrel during the remainder of 2023, increasing to $81.65 per barrel in 2024 and decreasing to $77.91 per barrel by the end of the forecast period in the second quarter of 2025.
In estimating expected credit losses as of December 31, 2021,2022, we utilized the Moody’s Analytics December 2021 Consensus2022 Baseline Scenario (the “December 2021 Consensus2022 Baseline Scenario”) to forecast the macroeconomic variables used in our models. The December 2021 Consensus2022 Baseline Scenario was based on the review of a variety of surveys of baseline forecastsmost likely outcome based on prevailing economic conditions and Moody's forecast of the U.S. economy. The December 2021 Consensus2022 Baseline Scenario projections included, among other things, (i) U.S. Nominal Gross Domestic Product annualized quarterly growth rate of 6.4%2.65% in the first quarter of 2022,2023, followed by annualized quarterly growth rates in the range of 3.8%3.62% to 5.4%4.50% during the remainder of 20222023 and an average annualized growth rate of 4.8%4.79% through the end of the forecast period in the fourth quarter of 2023;2024; (ii) U.S. unemployment rate of 4.3%3.80% in the first quarter of 2022 improving2023 and an average quarterly U.S. unemployment rate of 4.06% through the end of the forecast period in the fourth quarter of 2024; (iii) Texas unemployment rate of 4.10% in the first quarter of 2023 and an average quarterly Texas unemployment rate of 4.04% through the end of the forecast period in the fourth quarter of 2024; (iv) projected average 10 year Treasury rate of 4.03% in the first quarter of 2023 and average projected rates of 4.25% during the remainder of 2023 and 3.96% in 2024; and (v) average oil price of $93 per barrel in the first quarter of 2023 decreasing to 3.7%$67 per barrel by the end of the forecast period in the fourth quarter of 2023 with Texas unemployment rates slightly higher at those dates; and (iii) projected average 10 year Treasury rate of 1.59% in the first quarter of 2022, increasing to average projected rates of 1.75% during the remainder of 2022 and 2.10% in 2023.2024.
The overall loan portfolio excluding PPP loans which are fully guaranteed by the SBA, as of June 30, 20222023 increased $736.6$591.3 million, or 4.6%3.4%, compared to December 31, 2021.2022. This increase included a $479.5$314.4 million, or 6.3%17.1%, increase in consumer real estate loans; a $209.6 million, or 2.6%, increase in commercial real estate loans,loans; a $174.3$60.8 million, or 3.2%6.6%, increase in energy loans; and a $52.0 million, or 0.9%, increase in commercial and industrial loans,loans; partly offset by a $150.2$33.0 million, or 10.6%6.7%, increase in consumer real estate loans and a $22.4 million, or 4.7%, increasedecrease in consumer and other loans partly offset by an $89.9 million, or 8.3%, decrease in energy loans.
57

Table of Contents
The weighted average risk grade for commercial and industrial loans increased to 6.386.46 at June 30, 2022 compared to 6.222023 from 6.39 at December 31, 2021. This2022. The increase was primarily duepartly related to an increase in the weighted-average risk grade of pass-grade commercial and industrial loans, which increased to 6.236.29 at June 30, 20222023 from 6.016.24 at December 31, 2021. Commercial2022, and industrial loans graded “watch” and “special mention” (risk grades 9 and 10) decreased $25.6a $37.0 million during the first six months of 2022 whileincrease in higher-risk grade classified commercial and industrial loans decreased $13.0 million.loans. Classified loans consist of loans having a risk grade of 11, 12 or 13. The impact of the increase in the volume of classified commercial and industrial loans was partly offset by a decrease in the weighted-average risk grade of such loans from 11.43 at December 31, 2022 to 11.27 at June 30, 2023. The weighted-average risk grade for energy loans decreasedincreased to 5.825.96 at June 30, 20222023 from 6.065.67 at December 31, 2021. The decrease in the weighted average risk grade was partly related to a $23.3 million decrease in energy loans graded “watch” and “special mention” (risk grades 9 and 10). Additionally, pass2022. Pass grade energy loans decreased $67.2increased $65.9 million andwhile the weighted-average risk grade of pass grade energysuch loans decreasedincreased from 5.785.44 at December 31, 20212022 to 5.575.79 at June 30, 2022.2023. The weighted average risk grade for commercial real estate loans decreasedincreased to 7.097.18 at June 30, 20222023 from 7.197.10 at December 31, 2021.2022. Pass grade commercial real estate loans increased $612.0$138.1 million while the weighted-average risk grade of such loans decreasedincreased from 6.926.96 at December 31, 20212022 to 6.897.01 June 30, 2022.2023. Commercial real estate loans graded as “watch” and “special mention” decreased $99.5$21.9 million andwhile classified commercial real estate loans decreased $33.0increased $93.4 million.

58

Table of Contents
As noted above, our credit loss models utilized the economic forecasts in the Moody's June 20222023 Consensus Scenario for our estimated expected credit losses as of June 30, 20222023 and the Moody'sMoody’s December 2021 Consensus2022 Baseline Scenario for our estimate of expected credit losses as of December 31, 2021.2022. We qualitatively adjusted the model results based on these scenarios for various risk factors that are not considered within our modeling processes but are nonetheless relevant in assessing the expected credit losses within our loan pools. These qualitative factor, or Q-Factor, adjustments are discussed below.
Q-Factor adjustments are based upon management's judgment and current assessment as to the impact of risks related to changes in lending policies and procedures; economic and business conditions; loan portfolio attributes and credit concentrations; and external factors, among other things, that are not already captured within the modeling inputs, assumptions and other processes. Management assesses the potential impact of such items within a range of severely negative impact to positive impact and adjusts the modeled expected credit loss by an aggregate adjustment percentage based upon the assessment. As a result of this assessment as of June 30, 2022,2023, modeled expected credit losses were adjusted upwards by a weighted-average Q-Factor adjustment of approximately 2.5%4.3%, resulting in a $2.0$3.5 million total adjustment, compared to 2.3% at December 31, 2021,2022, which resulted in a $1.8$2.3 million total adjustment. The weighted-averageincrease in the Q-Factor adjustment atpercentage as of June 30, 20222023 was based on a limited negative expected impact on our commercial and industrial and commercial real estate loan portfolioslargely related to changes in loan portfolio concentrations; a limitedgenerally more negative expected impact on all of our loan portfolios related to changes in the volumes and severity of loan delinquencies, changes in risk grades and adverse classifications; a limited negative expected impact on our commercial and consumer real estate portfolios related to the potential deterioration of collateral values (no expected impact related to our commercial and industrial and consumer portfolios); a negative expected impactoutlook associated with national, regional and local economic and business conditions and developments that affect the collectability of loans; a severely negative expected impact from other risk factors associated with our commercial real estate construction and land loan portfolios, particularly the risks related to expected extensions; and no impact to any of our loan portfolios related to changes lending policies procedures and underwriting standards (except for our consumer and other portfolio, which was limited negative); andin loan portfolio attributes,concentrations; changes in the volumes and severity of loan delinquencies; changes in risk grades and adverse classifications; and the potential for deterioration of collateral values, among other things.
We have also provided additional qualitative adjustments, or management overlays, as of June 30, 20222023 as management believes there are still significant risks impacting certain categories of our loan portfolio. Q-Factor and other qualitative adjustments as of June 30, 20222023 are detailed in the table below.
Q-Factor AdjustmentModel OverlaysOffice Building OverlaysDown-Side Scenario OverlayCredit Concentration OverlaysConsumer OverlayTotalQ-Factor AdjustmentModel OverlaysOffice Building OverlaysDown-Side Scenario OverlayCredit Concentration OverlaysConsumer OverlayTotal
Commercial and industrialCommercial and industrial$975 $— $— $28,931 $5,228 $— $35,134 Commercial and industrial$1,625 $— $— $19,207 $5,438 $— $26,270 
EnergyEnergy123 — — — 3,866 — 3,989 Energy201 — — — 6,295 — 6,496 
Commercial real estate:Commercial real estate:Commercial real estate:
Owner occupiedOwner occupied293 28,196 — — 1,399 — 29,888 Owner occupied444 24,078 — — 493 — 25,015 
Non-owner occupiedNon-owner occupied53 11,266 31,561 — 661 — 43,541 Non-owner occupied231 33,308 10,315 — 2,332 — 46,186 
ConstructionConstruction436 13,485 7,260 — 922 — 22,103 Construction536 27,738 3,944 — 711 — 32,929 
Consumer real estateConsumer real estate133 — — — — — 133 Consumer real estate441 — — — — — 441 
Consumer and otherConsumer and other26 — — — — 2,500 2,526 Consumer and other52 — — — — 4,000 4,052 
TotalTotal$2,039 $52,947 $38,821 $28,931 $12,076 $2,500 $137,314 Total$3,530 $85,125 $14,259 $19,207 $15,268 $4,000 $141,389 
Model overlays are qualitative adjustments to address the effecteffects of unusually large positive changes in certain economic variables used byrisks not captured within our commercial real estate credit loss models. These adjustments are determined based upon minimum reserve ratios for our commercial real estate loans. In the case of our commercial real estate - owner occupied loan portfolio, we determined a minimum reserve ratio is appropriate to address the effect of the model's over-sensitivity to positive changes in certain economic variables. After analysis and benchmarking against peer bank data, we believe the modeled results may be overly optimistic and not appropriately capturing downside risk. As such, we determined that the appropriate forecasted loss rate for our owner-occupied commercial real estate loan portfolio should be more closely aligned with that of our commercial and industrial loan portfolio. In the case of our commercial real estate - non-owner occupied and commercial real estate - construction loan portfolios.
58

Tableportfolios, we determined minimum reserve ratios are appropriate as we believe the modeled results are not appropriately capturing the downside risk associated with our borrowers' ability to access the capital markets for the sale or refinancing of Contents
investor real estate and assets currently under construction. We believe access to capital may be impaired for a significant amount of time. Accordingly, this would require secondary sources of liquidity and capital to support completed projects that may take considerably longer to stabilize than originally underwritten. Furthermore, rapidly rising interest rates have presented a new emerging risk as most non-owner occupied and construction loans are originated with floating interest rates.
Office building overlays are qualitative adjustments to address longer-term concerns over the utilization of commercial office space which could impact the long-term performance of some types of office properties within our commercial real estate loan portfolio. These adjustments are determined based upon minimum reserve ratios for loans within our commercial real estate - non-owner occupied and commercial real estate - construction loan portfolios that have risk grades of 8 or worse.

59

Table of Contents
The down-side scenario overlay is a qualitative adjustment for our commercial and industrial loan portfolio to address the significant risk of economic recession as a result of inflation; rising interest rates; labor shortages; disruption in financial markets and global supply chains; further oil price volatility; and the current or anticipated impact of military conflict, including the current war between Russia and Ukraine, terrorism or other geopolitical events. Factors such as these are outside of our control but nonetheless affect customer income levels and could alter anticipated customer behavior, including borrowing, repayment, investment and deposit practices. To determine this qualitative adjustment, we use an alternative, more pessimistic economic scenario to forecast the macroeconomic variables used in our models. As of June 30, 2022,2023, we used the Moody’s Analytics June 2022 S3 Alternative Scenario Downside - 90th Percentile (the “June 2022 S3 Scenario”).Percentile. In modeling expected credit losses using this scenario, we also assume each loan within our modeled loan pools is downgraded by one risk grade level. The qualitative adjustment is based upon the amount by which the alternative scenario modeling results exceed those of the primary scenario used in estimating credit loss expense, adjusted based upon management's assessment of the probability that this more pessimistic economic scenario will occur.
Credit concentration overlays are qualitative adjustments based upon statistical analysis to address relationship exposure concentrations within our loan portfolio. Variations in loan portfolio concentrations over time cause expected credit losses within our existing portfolio to differ from historical loss experience. Given that the allowance for credit losses on loans reflects expected credit losses within our loan portfolio and the fact that these expected credit losses are uncertain as to nature, timing and amount, management believes that segments with higher concentration risk are more likely to experience a high loss event. Due to the fact that a significant portion of our loan portfolio is concentrated in large credit relationships and because of large, concentrated credit losses in recent years, management made the qualitative adjustments detailed in the table above to address the risk associated with such a relationship deteriorating to a loss event.
The consumer overlay is a qualitative adjustment for our consumer and other loan portfolio to address the risk associated with the level of unsecured loans within this portfolio and other risk factors. Unsecured consumer loans have an elevated risk of loss in times of economic stress as these loans lack a secondary source of repayment in the form of hard collateral. This adjustment was determined by analyzing our consumer loan charge-off trends as well as those of the general banking industry. Management deemed it appropriate to consider an additional overlay to the modeled forecasted losses for the unsecured consumer portfolio.
As of December 31, 2021,2022, we provided qualitative adjustments, as detailed in the table below. Further information regarding these qualitative adjustments is provided in our 20212022 Form 10-K.
Q-Factor AdjustmentModel OverlaysOffice Building OverlaysSmall Business OverlayCOVID-19 Related OverlaysCredit Concentration OverlaysConsumer OverlayTotalQ-Factor AdjustmentModel OverlaysOffice Building OverlaysDown-Side Scenario OverlayCredit Concentration OverlaysConsumer OverlayTotal
Commercial and industrialCommercial and industrial$939 $— $— $3,956 $4,715 $4,999 $— $14,609 Commercial and industrial$929 $— $— $29,632 $5,676 $— $36,237 
EnergyEnergy127 — — — — 5,247 — 5,374 Energy128 — — — 5,020 — 5,148 
Commercial real estate:Commercial real estate:Commercial real estate:
Owner occupiedOwner occupied198 31,806 — — 7,397 1,320 — 40,721 Owner occupied318 19,708 — — 1,718 — 21,744 
Non-owner occupiedNon-owner occupied45 7,762 27,860 — 30,940 731 — 67,338 Non-owner occupied95 10,472 16,557 — 487 — 27,611 
ConstructionConstruction383 11,212 5,544 — 2,151 511 — 19,801 Construction660 7,905 3,122 — 530 — 12,217 
Consumer real estateConsumer real estate65 — — — — — — 65 Consumer real estate157 — — — — — 157 
Consumer and otherConsumer and other— — — — — 1,432 1,440 Consumer and other34 — — — — 2,000 2,034 
TotalTotal$1,765 $50,780 $33,404 $3,956 $45,203 $12,808 $1,432 $149,348 Total$2,321 $38,085 $19,679 $29,632 $13,431 $2,000 $105,148 

5960

Table of Contents
Additional information related to credit loss expense and net (charge-offs) recoveries is presented in the tables below. Also see Note 3 - Loans in the accompanying notes to consolidated financial statements included elsewhere in this report.
Credit Loss Expense (Benefit)Net
(Charge-Offs)
Recoveries
Average
Loans
Ratio of Annualized Net (Charge-Offs)
Recoveries to Average Loans
Credit Loss Expense (Benefit)Net
(Charge-Offs)
Recoveries
Average
Loans
Ratio of Annualized Net (Charge-Offs)
Recoveries to Average Loans
Three months ended:Three months ended:Three months ended:
June 30, 2023June 30, 2023
Commercial and industrialCommercial and industrial$2,404 $(5,703)$5,716,855 (0.40)%
EnergyEnergy(4,433)171 1,070,183 0.06 
Paycheck Protection ProgramPaycheck Protection Program— — 26,701 — 
Commercial real estateCommercial real estate5,133 100 8,312,310 — 
Consumer real estateConsumer real estate3,822 (495)2,070,475 (0.10)
Consumer and otherConsumer and other5,007 (3,901)467,730 (3.35)
TotalTotal$11,933 $(9,828)$17,664,254 (0.22)
June 30, 2022June 30, 2022June 30, 2022
Commercial and industrialCommercial and industrial$942 $(698)$5,531,663 (0.05)%Commercial and industrial$942 $(698)$5,531,663 (0.05)%
EnergyEnergy427 418 1,040,893 0.16 Energy427 418 1,040,893 0.16 
Paycheck Protection ProgramPaycheck Protection Program— — 143,989 — Paycheck Protection Program— — 143,989 — 
Commercial real estateCommercial real estate(12,232)384 7,964,298 0.02 Commercial real estate(12,232)384 7,964,298 0.02 
Consumer real estateConsumer real estate583 (88)1,495,799 (0.02)Consumer real estate583 (88)1,495,799 (0.02)
Consumer and otherConsumer and other5,884 (2,823)497,847 (2.27)Consumer and other5,884 (2,823)497,847 (2.27)
TotalTotal$(4,396)$(2,807)$16,674,489 (0.07)Total$(4,396)$(2,807)$16,674,489 (0.07)
Excluding PPP loans$(4,396)$(2,807)$16,530,500 (0.07)
June 30, 2021
Six months ended:Six months ended:
June 30, 2023June 30, 2023
Commercial and industrialCommercial and industrial$(5,901)$280 $4,705,857 0.02 %Commercial and industrial$(18,280)$(10,791)$5,685,051 (0.38)%
EnergyEnergy(5,527)65 1,024,691 0.03 Energy(3,467)334 1,041,099 0.06 
Paycheck Protection ProgramPaycheck Protection Program— — 2,648,345 — Paycheck Protection Program— — 29,137 — 
Commercial real estateCommercial real estate3,654 (101)7,069,124 (0.01)Commercial real estate30,494 131 8,270,722 — 
Consumer real estateConsumer real estate611 (93)1,335,763 (0.03)Consumer real estate5,105 (74)1,991,302 (0.01)
Consumer and otherConsumer and other2,784 (1,742)462,609 (1.51)Consumer and other10,756 (8,210)475,300 (3.48)
TotalTotal$(4,379)$(1,591)$17,246,389 (0.04)Total$24,608 $(18,610)$17,492,611 (0.21)
Excluding PPP loans$(4,379)$(1,591)$14,598,044 (0.04)
Six months ended:
June 30, 2022June 30, 2022June 30, 2022
Commercial and industrialCommercial and industrial$18,503 $(3,324)$5,491,632 (0.12)%Commercial and industrial$18,503 $(3,324)$5,491,632 (0.12)%
EnergyEnergy(1,617)667 1,045,338 0.13 Energy(1,617)667 1,045,338 0.13 
Paycheck Protection ProgramPaycheck Protection Program— — 222,773 — Paycheck Protection Program— — 222,773 — 
Commercial real estateCommercial real estate(27,841)11 7,826,540 — Commercial real estate(27,841)11 7,826,540 — 
Consumer real estateConsumer real estate557 (288)1,459,142 (0.04)Consumer real estate557 (288)1,459,142 (0.04)
Consumer and otherConsumer and other10,466 (6,168)485,844 (2.56)Consumer and other10,466 (6,168)485,844 (2.56)
TotalTotal$68 $(9,102)$16,531,269 (0.11)Total$68 $(9,102)$16,531,269 (0.11)
Excluding PPP loans$68 $(9,102)$16,308,496 (0.11)
June 30, 2021
Commercial and industrial$(7,866)$(706)$4,764,241 (0.03)%
Energy(11,328)(215)1,093,080 (0.04)
Paycheck Protection Program— — 2,739,210 — 
Commercial real estate12,576 525 7,068,403 0.01 
Consumer real estate(2,111)339 1,332,196 0.05 
Consumer and other4,350 (3,453)466,814 (1.49)
Total$(4,379)$(3,510)$17,463,944 (0.04)
Excluding PPP loans$(4,379)$(3,510)$14,724,734 (0.05)
We recorded a net credit loss expense related to loans totaling $68 thousand$24.6 million for the six months ended June 30, 20222023 while nowe recorded a net credit loss expense or benefit was recognizedtotaling $68 thousand during the same period in 2021.2022. Net credit loss expense/benefit for each portfolio segment reflects the amount needed to adjust the allowance for credit losses allocated to that segment to the level of expected credit losses determined under our allowance methodology after net charge-offs have been recognized.
The net credit loss expense related to loans during the first six months of 20222023 primarily reflects increasesan increase in expected credit losses associated with commercial and industrialreal estate loans, primarily related to increases in the down-side scenario overlay discussed above,minimum reserve ratios for our commercial real estate - non-owner occupied and construction portfolios. The net credit loss expense related to loans during the first six months of 2023 also reflects charge-off trends related to commercial and industrial loans as well as consumer and other loans (primarily related to overdrafts) and the additional expected credit losses associated with our consumer real estate and consumer and other loans, primarily related to an increase in modeled losses, as well as the level of net charge-offs associated with these loan portfolio segments.portfolios. The impact of these items was partly offset by a decrease in expected credit losses associated with commercial real estate loans,and industrial loans; primarily related to decreases in modeled expected losses, the down-side scenario overlay and specific allocations; and a decrease in the expected credit losses associated with energy loans; primarily related to certain pandemic impacted industriesdecreases in modeled expected losses and a reduction in the minimum reserve ratio for our commercial real estate - owner occupied portfolio. specific allocations.
61

Table of Contents
The ratio of the allowance for credit losses on loans to total loans was 1.43% (1.44% excluding PPP loans)1.32% at June 30, 20222023 compared to
60

Table of Contents
1.52% (1.56% excluding PPP loans) 1.33% at December 31, 2021.2022. Management believes the recorded amount of the allowance for credit losses on loans is appropriate based upon management’s best estimate of current expected credit losses within the existing portfolio of loans. Should any of the factors considered by management in making this estimate change, our estimate of current expectexpected credit losses could also change, which could affect the level of future credit loss expense related to loans.
Allowance for Credit Losses - Off-Balance-Sheet Credit Exposures. The allowance for credit losses on off-balance-sheet credit exposures totaled approximately $50.2$52.9 million and $50.3$58.6 million at June 30, 20222023 and December 31, 2021,2022, respectively. The level of the allowance for credit losses on off-balance-sheet credit exposures depends upon the volume of outstanding commitments, underlying risk grades, the expected utilization of available funds and forecasted economic conditions impacting our loan portfolio. We recognized a net credit loss benefit related to off-balance-sheet credit exposures totaling $5.7 million during the six months ended June 30, 2023 compared to a net credit loss benefit of $68 thousand during the same period in 2022. Our policies and methodology used to estimate the allowance for credit losses on off-balance-sheet credit exposures are further described in our 20212022 Form 10-K. We recognizedThis methodology was also impacted by the model updates during the first quarter of 2023 described in Note 3 - Loans in the accompanying notes to consolidated financial statements elsewhere in this report. The overall approximate impact of model updates during the first quarter was a net$19.0 million decrease in modeled expected credit loss benefit related tolosses for off-balance-sheet credit exposures, totaling $68 thousand duringthough the six months ended June 30, 2022 comparedimpact of this decrease was largely offset with a qualitative adjustment similar to a net credit loss expense of $4.4 million during the same period in 2021.model overlay described above for commercial real estate - construction loans.
Capital and Liquidity
Capital. Shareholders’ equity totaled $3.3$3.4 billion and $4.4$3.1 billion at June 30, 20222023 and December 31, 2021,2022, respectively. The decrease was primarily related to the accumulated other comprehensive income/loss component of shareholders’ equity which decreased to a net, after-tax, unrealized loss of $874.2 million at June 30, 2022 from a net, after-tax unrealized gain of $347.3 million at December 31, 2021. The change was primarily due to a $1.2 billion net, after-tax, decrease in the fair value of securities available for sale. Other usesSources of capital during the six months ended June 30, 20222023 included $100.3net income of $339.8 million, other comprehensive income of $43.3 million, $9.5 million related to stock-based compensation and $2.4 million in proceeds from stock option exercises. Uses of capital during the six months ended June 30, 2023 included $116.4 million of dividends paid on preferred and common stock and $996 thousand$29.1 million of treasury stock purchases. Sources of capital during the six months ended June 30, 2022 included net income of $218.2 million, $6.5 million in proceeds from stock option exercises and $5.5 million related to stock-based compensation.
Under the Basel III Capital Rules, we have elected to opt-out of the requirement to include most components of accumulated other comprehensive income in regulatory capital. Accordingly, amounts reported as accumulated other comprehensive income/loss do not increase or reduce regulatory capital and are not included in the calculation of our regulatory capital ratios. In connection with the adoption of ASC 326 on January 1, 2020, we also elected to exclude, for a transitional period, the effects of credit loss accounting under CECL in the calculation of our regulatory capital and regulatory capital ratios. Regulatory agencies for banks and bank holding companies utilize capital guidelines designed to measure capital and take into consideration the risk inherent in both on-balance-sheet and off-balance-sheet items. See Note 7 - Capital and Regulatory Matters in the accompanying notes to consolidated financial statements included elsewhere in this report.
We paid a quarterly dividend of $0.87 per common share during each of the first and second quarters of 2023 and a quarterly dividend of $0.75 per common share during each of the first and second quarters of 2022 and a quarterly dividend of $0.72 per common share during each of the first and second quarters of 2021.2022. These dividend amounts equate to a common stock dividend payout ratio of 45.1%33.6% and 40.1%45.1% during the first six months of 20222023 and 2021,2022, respectively. Our ability to declare or pay dividends on, or purchase, redeem or otherwise acquire, shares of our capital stock may be impacted by certain restrictions described in Note 7 - Capital and Regulatory Matters in the accompanying notes to consolidated financial statements included elsewhere in this report.
Stock Repurchase Plans. From time to time, our board of directors has authorized stock repurchase plans. In general, stock repurchase plans allow us to proactively manage our capital position and return excess capital to shareholders. Shares purchased under such plans also provide us with shares of common stock necessary to satisfy obligations related to stock compensation awards. On January 26, 2022 our board of directors authorized a $100.0 million stock repurchase program, allowing us to repurchase shares of our common stock over a one-year period from time to time at various prices in the open market or through private transactions. No shares have been repurchased under this plan or under a prior plan during the reported periods. SeeFor additional details, see Note 7 - Capital and Regulatory Matters in the accompanying notes to consolidated financial statements and Part II, Item 2 - Unregistered Sales of Equity Securities and Use of Proceeds, each included elsewhere in this report.
In August 2022, the Inflation Reduction Act of 2022 (the “IRA”) was enacted. Among other things, the IRA imposes a new 1% excise tax on the fair market value of stock repurchased after December 31, 2022 by publicly traded U.S. corporations. With certain exceptions, the value of stock repurchased is determined net of stock issued in the year, including pursuant to compensatory arrangements.
Liquidity. As more fully discussed in our 20212022 Form 10-K, our liquidity position is continuously monitored and adjustments are made to the balance between sources and uses of funds as deemed appropriate. Liquidity risk management is an important element in our asset/liability management process. We regularly model liquidity stress scenarios to assess potential liquidity outflows or funding problems resulting from economic disruptions, volatility in the financial markets, unexpected credit events or other significant occurrences deemed problematic by management. These scenarios are incorporated into our contingency funding plan, which provides the basis for the identification of our liquidity needs. Our principal source of funding has been our
62

Table of Contents
customer deposits, supplemented by our short-term and long-term borrowings as well as maturities of securities and loan amortization. As of June 30, 2022,2023, we had approximately $12.7$6.3 billion held in an interest-bearing account at the Federal Reserve. We also have the ability to borrow funds as a member of the Federal Home Loan Bank (“FHLB”). As of June 30, 2022,2023, based upon available, pledgeable collateral, our total borrowing capacity with the FHLB was approximately $3.2$5.2 billion.
61

Table of Contents
Furthermore, at June 30, 2022,2023, we had approximately $14.1$14.8 billion in securities that were unencumbered by a pledge and could be used to support additional borrowings, as needed, through repurchase agreements, or the Federal Reserve discount window or the Federal Reserve's new Bank Term Funding Program (“BTFP”). The BTFP is a new facility established in response to recent liquidity concerns within the banking industry in part due to recent deposit runs that resulted in a few large bank failures. The BTFP was designed to provide available additional funding to eligible depository institutions in order to help assure that banks have the ability to meet the needs of all their depositors. Under the program, eligible depository institutions can obtain loans of up to one year in length by pledging U.S. Treasuries, agency debt and mortgage-backed securities, and other qualifying assets as needed.collateral. These assets will be valued at par. The BTFP is intended to eliminate the need for depository institutions to quickly sell their securities when they are experiencing stress on their liquidity.
Since Cullen/Frost is a holding company and does not conduct operations, its primary sources of liquidity are dividends upstreamed from Frost Bank and borrowings from outside sources. Banking regulations may limit the amount of dividends that may be paid by Frost Bank. See Note 7 - Capital and Regulatory Matters in the accompanying notes to consolidated financial statements included elsewhere in this report regarding such dividends. At June 30, 2022,2023, Cullen/Frost had liquid assets, includingprimarily consisting of cash and resell agreements,on deposit at Frost Bank, totaling $432.8$323.0 million.
Accounting Standards Updates
See Note 17 - Accounting Standards Updates in the accompanying notes to consolidated financial statements included elsewhere in this report for details of recently issued accounting pronouncements and their expected impact on our financial statements.
6263

Table of Contents
Item 3. Quantitative and Qualitative Disclosures About Market Risk
The disclosures set forth in this item are qualified by the section captioned “Forward-Looking Statements and Factors that Could Affect Future Results” included in Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations of this report and other cautionary statements set forth elsewhere in this report.
Refer to the discussion of market risks included in Item 7A. Quantitative and Qualitative Disclosures About Market Risk in the 20212022 Form 10-K. There has been no significant change in the types of market risks we face since December 31, 2021.2022.
We utilize an earnings simulation model as the primary quantitative tool in measuring the amount of interest rate risk associated with changing market rates. The model quantifies the effects of various interest rate scenarios on projected net interest income and net income over the next 12 months. The model measures the impact on net interest income relative to a flat-rate case scenario of hypothetical fluctuations in interest rates over the next 12 months. These simulations incorporate assumptions regarding balance sheet growth and mix, pricing and the repricing and maturity characteristics of the existing and projected balance sheet. The impact of interest rate derivatives, such as interest rate swaps, caps and floors, is also included in the model. Other interest rate-related risks such as prepayment, basis and option risk are also considered.
For modeling purposes, as of June 30, 2023, the model simulations projected that 100 and 200 basis point ratable increases in interest rates would result in positive variances in net interest income of 1.5% and 2.9%, respectively, relative to the flat-rate case over the next 12 months, while 100 and 200 basis point ratable decreases in interest rates would result in a negative variances in net interest income of 1.2% and 2.6%, respectively, relative to the flat-rate case over the next 12 months. For modeling purposes, as of December 31, 2022, the model simulations projected that 100 and 200 basis point ratable increases in interest rates would result in positive variances in net interest income of 2.9%0.2% and 6.1%1.4%, respectively, relative to the flat-rate case over the next 12 months, while 100 and 175200 basis point ratable decreases in interest rates would result in a negative variances in net interest income of 2.7%0.2% and 8.3%1.4%, respectively, relative to the flat-rate case over the next 12 months. For modeling purposes, as of December 31, 2021, the model simulations projected that 100 and 200 basis point ratable increases in interest rates would result in positive variances in net interest income of 2.8% and 7.1%, respectively, relative to the flat-rate case over the next 12 months, while a 25 basis point ratable decrease in interest rates would result in a negative variance in net interest income of 3.0% relative to the flat-rate case over the next 12 months. The likelihood of a decrease in interest rates beyond 175 basis points as of June 30, 2022 and 25 basis points as of December 31, 2021 was considered remote given prevailing interest rate levels.
We do not currently pay interest on a significant portion of our commercial demand deposits. Any interest rate that would ultimately be paid on these commercial demand deposits would likely depend upon a variety of factors, some of which are beyond our control. Our June 30, 2023 and December 31, 2022 model simulations dodid not assume any payment of interest on commercial demand deposits (those not already receiving an earnings credit) while our modeling simulations as of December 31, 2021 assumed a slightly aggressive pricing structure with regards to interest payments on commercial demand deposits (those not already receiving an earnings credit) with interest payments assumed to begin in the first quarter of 2022. This pricing structure on commercial demand deposits assumed a deposit pricing beta of 25%. The pricing beta is a measure of how much deposit rates reprice, up or down, given a defined change in market rates. As of June 30, 2022, managementManagement believes, based on our experience during the last interest rate cycle, that it is less likely we will pay interest on these deposits as rates increase.
The model simulations as of June 30, 20222023 indicate that our projected balance sheet is slightly lessmore asset sensitive in comparison to our balance sheet as of December 31, 2021.2022. The decreasedincreased asset sensitivity was partlyprimarily due to a decrease in the relative proportionexpected deposit pricing beta for rate increases on certain types of interest-bearing deposits (primarily amounts helddeposit accounts. The deposit pricing beta is a measure of how much deposit rates will reprice, up or down, given a defined change in an interest-bearing account atmarket rates. Management believes that the Federal Reserve) and federal funds sold to projected average interest-earning assets combined with an increase in the relative proportiondeposit pricing betas used as of fixed-rate taxable securities to projected average interest-earning assets. Interest-bearing deposits and federal funds soldJune 30, 2023 are more immediately impacted by changes in interest rates in comparison to our other categoriesreflective of earning assets.current expectations.
As of June 30, 2022,2023, the effects of a 200 basis point increase and a 100200 basis point decrease in interest rates on our derivative holdings would not result in a significant variance in our net interest income.
The effects of hypothetical fluctuations in interest rates on our securities classified as “trading” under ASC Topic 320, “Investments—Debt and Equity Securities,” are not significant, and, as such, separate quantitative disclosure is not presented.
Item 4. Controls and Procedures
As of the end of the period covered by this Quarterly Report on Form 10-Q, an evaluation was carried out by management, with the participation of its Chief Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the disclosure controls and procedures were effective as of the end of the period covered by this report. No change in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Securities Exchange Act of 1934) occurred during the last fiscal quarter that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.
6364

Table of Contents
Part II. Other Information
Item 1. Legal Proceedings
We are subject to various claims and legal actions that have arisen in the course of conducting business. Management does not expect the ultimate disposition of these matters to have a material adverse impact on our financial statements.
Item 1A. Risk Factors
There has been no material change in the risk factors disclosed under Item 1A. of our 20212022 Form 10-K.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
The following table provides information with respect to purchases we made or were made on our behalf or any “affiliated purchaser” (as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934), of our common stock during the three months ended June 30, 2022.2023. Dollar amounts in thousands.
Period
PeriodTotal Number of
Shares Purchased
Average Price
Paid Per Share
Total Number of
Shares Purchased
as Part of Publicly
Announced Plan
Maximum
Number of Shares
(or Approximate
Dollar Value)
That May Yet Be
Purchased Under
the Plan at the
End of the Period
April 1, 2023 to April 30, 2023— $— — $100,000 
May 1, 2023 to May 31, 2023289,149 95.94 288,912 72,258 
June 1, 2023 to June 30, 2023— — — 72,258 
Total289,149 288,912 

Total Number of
Shares Purchased
Average Price
Paid Per Share
Total Number of
Shares Purchased
as Part of Publicly
Announced Plan
Maximum
Number of Shares
(or Approximate
Dollar Value)
That May Yet Be
Purchased Under
the Plan at the
End of the Period
April 1, 2022 to April 30, 2022— $— — $100,000 
May 1, 2022 to May 31, 2022— — — 100,000 
June 1, 2022 to June 30, 2022— — — 100,000 
Total— — 
Item 3. Defaults Upon Senior Securities
None.
Item 4. Mine Safety Disclosures
None.
Item 5. Other Information
Rule 10b5-1 and Non-Rule 10b5-1 Trading Arrangements.None.
6465

Table of Contents
Item 6. Exhibits
(a) Exhibits
Exhibit
Number
Description
10.1(1)
10.2(1)
10.3(1)
10.4(1)
10.5(1)
10.6(1)
10.7(1)
10.8(1)
31.1
31.2
32.1(2)(1)
32.2(2)(1)
101.INS(3)(2)
Inline XBRL Instance Document
101.SCHInline XBRL Taxonomy Extension Schema Document
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document
101.LABInlineXBRL Taxonomy Extension Label Linkbase Document
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document
104(4)(3)
Cover Page Interactive Data File
    
(1)Management contract or compensatory plan or arrangement.
(2)This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section, and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.
(3)(2)The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document.
(4)(3)Formatted as Inline XBRL and contained within the Inline XBRL Instance Document in Exhibit 101.

6566

Table of Contents
Signatures
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
Cullen/Frost Bankers, Inc.
(Registrant)
Date:July 28, 202227, 2023By:/s/ Jerry Salinas
Jerry Salinas
Group Executive Vice President
and Chief Financial Officer
(Duly Authorized Officer, Principal Financial
Officer and Principal Accounting Officer)
6667