XML 23 R12.htm IDEA: XBRL DOCUMENT v3.26.3
Loans
9 Months Ended
Sep. 30, 2026
Receivables [Abstract]  
Loans Loans
Loans were as follows:
September 30,
2026
December 31,
2025
Commercial and industrial$6,467,069 $6,306,980 
Energy:
Production719,688 767,724 
Service343,258 252,295 
Other87,147 74,650 
Total energy1,150,093 1,094,669 
Commercial real estate:
Owner occupied4,402,147 3,987,913 
Non-owner occupied4,218,556 3,773,028 
Construction and land2,757,013 2,549,869 
Total commercial real estate11,377,716 10,310,810 
Consumer real estate:
Home equity lines of credit1,182,123 1,068,393 
Home equity1,063,114 1,035,971 
1-4 family mortgage965,676 594,825 
Home improvement850,700 874,148 
Other131,766 145,331 
Total consumer real estate4,193,379 3,718,668 
Total real estate15,571,095 14,029,478 
Consumer and other468,710 460,685 
Total loans$23,656,967 $21,891,812 
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 September 30, 2026, there were no concentrations of loans related to any single industry in excess of 10% of total loans. At that date, the largest industry concentration was related to the energy industry, which totaled 4.9% of total loans. As of September 30, 2026, unfunded commitments to extend credit and standby letters of credit issued to customers in the energy industry totaled $1.3 billion and $81.4 million, respectively.
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 material at September 30, 2026 or December 31, 2025.
Overdrafts. Deposit account overdrafts reported as loans totaled $31.4 million at September 30, 2026, including a $15.4 million overnight overdraft related to a correspondent bank that cleared the following day, and $13.8 million at December 31, 2025.
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 $303.4 million at September 30, 2026 and $316.1 million at December 31, 2025.
Accrued Interest Receivable. Accrued interest receivable on loans totaled $90.0 million at September 30, 2026 and $90.6 million at December 31, 2025, and is included in accrued interest receivable and other assets in the accompanying consolidated balance sheets.
Federal Home Loan Bank Blanket Pledge. We have executed a blanket pledge and security agreement with the Federal Home Loan Bank (“FHLB”) under which certain qualifying loans are pledged as collateral for any outstanding borrowings under the agreement. Loans pledged under the blanket agreement totaled $21.4 billion at September 30, 2026 and $19.6 billion at December 31, 2025, though no FHLB borrowings were outstanding as of these dates.
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:
September 30, 2026December 31, 2025
Total Non-AccrualNon-Accrual with No Credit Loss AllowanceTotal Non-AccrualNon-Accrual with No Credit Loss Allowance
Commercial and industrial$20,688 $11,131 $50,659 $26,693 
Energy2,218 2,218 3,023 1,304 
Commercial real estate:
Owner occupied 11,838 9,039 7,581 4,782 
Non-owner occupied4,453 4,453 465 465 
Construction and land19,356 5,372 1,874 202 
Consumer real estate4,959 4,673 6,615 4,486 
Consumer and other192 171 265 184 
Total$63,704 $37,057 $70,482 $38,116 
The following table presents non-accrual loans as of September 30, 2026, by class and year of origination.
20262025202420232022PriorRevolving LoansRevolving Loans Converted to TermTotal
Commercial and industrial$156 $344 $2,327 $8,381 $1,071 $2,125 $3,154 $3,130 $20,688 
Energy— — 55 — — 1,304 859 — 2,218 
Commercial real estate:
Owner occupied1,138 2,690 — 1,228 3,024 3,264 494 — 11,838 
Non-owner occupied— — — 3,790 99 123 — 441 4,453 
Construction and land— 1,517 2,712 1,142 — 934 12,427 624 19,356 
Consumer real estate— 432 174 286 — 43 361 3,663 4,959 
Consumer and other— — 171 — — — 21 — 192 
Total$1,294 $4,983 $5,439 $14,827 $4,194 $7,793 $17,316 $7,858 $63,704 
In the table above, loans reported as 2026 originations as of September 30, 2026 were primarily originated in years prior to 2026 and renewed during 2026. Had non-accrual loans performed in accordance with their original contractual terms, we would have recognized additional interest income, net of tax, of approximately $1.6 million and $3.8 million for the three and nine months ended September 30, 2026, and approximately $929 thousand and $3.6 million for the three and nine months ended September 30, 2025.
An age analysis of past due loans (including both accruing and non-accruing loans), segregated by class of loans, as of September 30, 2026, 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$39,663 $25,569 $65,232 $6,401,837 $6,467,069 $11,051 
Energy5,076 2,218 7,294 1,142,799 1,150,093 — 
Commercial real estate:
Owner occupied11,514 17,012 28,526 4,373,621 4,402,147 7,771 
Non-owner occupied9,766 59,439 69,205 4,149,351 4,218,556 55,347 
Construction and land5,065 17,874 22,939 2,734,074 2,757,013 1,834 
Consumer real estate26,679 11,845 38,524 4,154,855 4,193,379 7,271 
Consumer and other8,418 689 9,107 459,603 468,710 518 
Total$106,181 $134,646 $240,827 $23,416,140 $23,656,967 $83,792 
Modifications to Borrowers Experiencing Financial Difficulty. From time to time, we may modify loans to borrowers experiencing financial difficulty. In some cases, these modifications may result in new loans. Such modifications may include principal forgiveness, an interest rate reduction, an other-than-insignificant payment delay, a term extension, or a combination thereof, among other things. The following table presents the period-end balance of loans to borrowers experiencing financial difficulty that were modified during the nine months ended September 30, 2026 and September 30, 2025, segregated by type of modification, regardless of whether the modifications resulted in new loans. There were no commitments to lend additional funds to these borrowers at September 30, 2026.
Payment
Delay
Percent of
Total Class
of Loans
September 30, 2026
Commercial real estate:
Non-owner occupied$54,939 1.3 %
$54,939 0.2 
September 30, 2025
Commercial and industrial$2,236 — %
Commercial real estate:
Construction and land1,772 0.1 
$4,008 — 
The financial effects of the loan modifications made to borrowers experiencing financial difficulty were not material during the nine months ended September 30, 2026 and 2025. The loan modifications reported in the table above did not materially impact our determination of the allowance for credit losses on loans during their respective reporting periods.
Information as of September 30, 2026 and September 30, 2025, related to loans modified (by type of modification) in the preceding twelve months, respectively, whereby the borrower was experiencing financial difficulty at the time of modification is set forth in the following table.
September 30, 2026September 30, 2025
Payment
Delay
Payment
Delay
Past due in excess of 90 days or on non-accrual status at period-end:
Commercial and industrial$— $3,286 
Commercial real estate:
Owner occupied— — 
Non-owner occupied54,939 — 
Construction and land— 1,772 
$54,939 $5,058 
Charge-offs during the period:
Commercial and industrial$— $1,108 
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 2025 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,” and 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. The following table presents weighted-average risk grades for all commercial loans, by class and year of origination/renewal, as of September 30, 2026.
20262025202420232022PriorRevolving LoansRevolving Loans Converted to TermTotalW/A Risk Grade
Commercial and industrial
Risk grades 1-8$1,396,162 $941,156 $426,448 $181,554 $193,805 $436,471 $2,383,498 $39,466 $5,998,560 6.18 
Risk grade 943,651 26,519 24,017 4,189 1,839 31,967 46,199 7,052 185,433 9.00 
Risk grade 1012 440 17,889 1,165 1,864 315 144,847 9,311 175,843 10.00 
Risk grade 116,463 8,469 5,949 19,195 5,027 18,020 13,639 9,783 86,545 11.00 
Risk grade 1237 240 2,055 7,654 854 2,097 560 1,512 15,009 12.00 
Risk grade 13119 104 272 727 217 28 2,594 1,618 5,679 13.00 
$1,446,444 $976,928 $476,630 $214,484 $203,606 $488,898 $2,591,337 $68,742 $6,467,069 6.45 
W/A risk grade6.54 5.87 7.22 7.74 7.13 5.96 6.36 8.58 6.45 
Energy
Risk grades 1-8$223,455 $82,517 $59,712 $6,614 $30,267 $24,535 $647,272 $7,323 $1,081,695 5.85 
Risk grade 961 13,659 4,596 16 — — 1,270 4,268 23,870 9.00 
Risk grade 10— 13,661 615 — — — 23,705 679 38,660 10.00 
Risk grade 11— 164 — 1,242 1,898 — — 346 3,650 11.00 
Risk grade 12— — 55 — — 1,304 859 — 2,218 12.00 
Risk grade 13— — — — — — — — — 13.00 
$223,516 $110,001 $64,978 $7,872 $32,165 $25,839 $673,106 $12,616 $1,150,093 6.08 
W/A risk grade6.05 7.86 6.97 7.98 7.75 6.53 5.56 7.88 6.08 
20262025202420232022PriorRevolving LoansRevolving Loans Converted to TermTotalW/A Risk Grade
Commercial real estate:
Owner occupied
Risk grades 1-8$898,321 $674,959 $413,702 $418,076 $538,966 $927,095 $29,302 $149,633 $4,050,054 6.84 
Risk grade 910,438 48,295 9,402 15,291 18,264 38,993 645 12 141,340 9.00 
Risk grade 10737 1,837 4,177 13,838 56,225 7,185 — — 83,999 10.00 
Risk grade 111,985 2,082 3,127 27,510 44,369 32,377 — 3,466 114,916 11.00 
Risk grade 121,016 2,190 — 1,228 3,024 3,264 494 — 11,216 12.00 
Risk grade 13122 500 — — — — — — 622 13.00 
$912,619 $729,863 $430,408 $475,943 $660,848 $1,008,914 $30,441 $153,111 $4,402,147 7.09 
W/A risk grade7.03 7.08 6.94 7.36 7.50 7.15 6.50 4.91 7.09 
Non-owner occupied
Risk grades 1-8$1,069,424 $897,030 $512,378 $423,613 $344,047 $685,608 $100,880 $2,361 $4,035,341 7.01 
Risk grade 92,682 9,312 6,883 32,806 565 4,687 100 — 57,035 9.00 
Risk grade 101,442 — — 2,655 — 433 — — 4,530 10.00 
Risk grade 112,000 2,914 4,961 442 60,195 42,738 3,947 — 117,197 11.00 
Risk grade 12— — — 3,790 99 123 — 441 4,453 12.00 
Risk grade 13— — — — — — — — — 13.00 
$1,075,548 $909,256 $524,222 $463,306 $404,906 $733,589 $104,927 $2,802 $4,218,556 7.16 
W/A risk grade7.01 7.17 7.04 7.49 7.71 7.05 6.27 7.92 7.16 
Construction and land
Risk grades 1-8$612,239 $814,317 $586,526 $123,440 $27,020 $19,150 $205,655 $5,646 $2,393,993 7.53 
Risk grade 92,899 3,241 8,038 128,164 8,755 — — — 151,097 9.00 
Risk grade 10— 26,353 8,477 — 61,955 42,000 12,250 — 151,035 10.00 
Risk grade 11— 1,060 — 39,954 — 518 — — 41,532 11.00 
Risk grade 12— 1,517 2,712 1,142 — 712 11,527 333 17,943 12.00 
Risk grade 13— — — — — 222 900 291 1,413 13.00 
$615,138 $846,488 $605,753 $292,700 $97,730 $62,602 $230,332 $6,270 $2,757,013 7.83 
W/A risk grade7.50 7.53 7.76 8.75 9.11 9.13 7.90 8.44 7.83 
Total commercial real estate$2,603,305 $2,485,607 $1,560,383 $1,231,949 $1,163,484 $1,805,105 $365,700 $162,183 $11,377,716 7.29 
W/A risk grade7.14 7.27 7.29 7.74 7.71 7.18 7.32 5.10 7.29 
In the table above, certain loans are reported as 2026 originations and have risk grades of 11 or higher. These loans were primarily originated years prior to 2026 and renewed during 2026.
The following tables present weighted average risk grades for all commercial loans by class as of December 31, 2025. Refer to our 2025 Form 10-K for details of these loans by year of origination/renewal.
Commercial Real Estate
Commercial and IndustrialEnergyOwner
Occupied
Non-owner
Occupied
Construction
and Land
Total Commercial Real Estate
W/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoansW/A Risk GradeLoans
Risk grades 1-86.06 $5,663,146 5.86 $1,010,179 6.77 $3,608,005 6.96 $3,494,323 7.61 $2,319,413 7.05 $9,421,741 
Risk grade 99.00 384,532 9.00 35,392 9.00 163,132 9.00 75,560 9.00 127,496 9.00 366,188 
Risk grade 1010.00 94,182 10.00 40,813 10.00 64,117 10.00 143,606 10.00 88,400 10.00 296,123 
Risk grade 1111.00 114,461 11.00 5,262 11.00 145,078 11.00 59,074 11.00 12,686 11.00 216,838 
Risk grade 1212.00 34,041 12.00 2,323 12.00 6,859 12.00 465 12.00 1,361 12.00 8,685 
Risk grade 1313.00 16,618 13.00 700 13.00 722 13.00 — 13.00 513 13.00 1,235 
Total6.44 $6,306,980 6.16 $1,094,669 7.08 $3,987,913 7.18 $3,773,028 7.78 $2,549,869 7.29 $10,310,810 
Information about the payment status of consumer loans, segregated by portfolio segment and year of origination, as of September 30, 2026, was as follows:
20262025202420232022PriorRevolving LoansRevolving Loans Converted to TermTotal
Consumer real estate:
Past due 30-89 days$709 $1,044 $1,764 $2,874 $2,432 $3,825 $13,836 $195 $26,679 
Past due 90 or more days— 924 1,284 513 1,059 807 3,358 3,900 11,845 
Total past due709 1,968 3,048 3,387 3,491 4,632 17,194 4,095 38,524 
Current loans647,549 693,143 551,000 400,215 294,538 407,514 1,148,696 12,200 4,154,855 
Total$648,258 $695,111 $554,048 $403,602 $298,029 $412,146 $1,165,890 $16,295 $4,193,379 
Consumer and other:
Past due 30-89 days$3,484 $186 $134 $115 $72 $62 $3,362 $1,003 $8,418 
Past due 90 or more days304 3 5 — — 11 98 268 689 
Total past due3,788 189 139 115 72 73 3,460 1,271 9,107 
Current loans65,307 27,875 7,809 5,291 2,585 2,486 329,560 18,690 459,603 
Total$69,095 $28,064 $7,948 $5,406 $2,657 $2,559 $333,020 $19,961 $468,710 
Period-end balances for revolving loans that converted to term during the three and nine months ended September 30, 2026 and 2025 were as follows:
Three Months Ended
September 30,
Nine Months Ended
September 30,
2026202520262025
Commercial and industrial$6,182 $18,912 $17,771 $51,695 
Energy1,646 1,475 10,484 2,711 
Commercial real estate:
Owner occupied1,450 — 1,450 109,061 
Non-owner occupied— 374 117 374 
Construction and land— — — — 
Consumer real estate2,497 1,179 5,899 2,406 
Consumer and other1,053 2,433 4,784 8,228 
Total$12,828 $24,373 $40,505 $174,475 
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 2025 Form 10-K, totaled 129.0 at September 30, 2026 and 125.8 at December 31, 2025. A higher TLI value implies more favorable economic conditions.
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 lifetime expected credit losses on loans, based on available information from internal and external sources that is relevant to assessing exposure to credit loss over the expected lives of the loans. Relevant information includes historical credit loss experience, current conditions, and reasonable and supportable forecasts over the loans’ contractual terms, adjusted for expected prepayments when appropriate. Loans are evaluated collectively when they share similar risk characteristics and individually when they do not. 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. Although management utilizes its best judgment and the 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, macroeconomic conditions, changes in interest rates, the accuracy of forecasted assumptions, and regulatory interpretations and supervisory assessments related to credit quality and asset classification. Our allowance methodology is more fully described in our 2025 Form 10-K.
The following table presents details of the allowance for credit losses on loans segregated by loan portfolio segment as of September 30, 2026 and December 31, 2025.
September 30, 2026Commercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
Total
Modeled expected credit losses$47,901 $5,155 $18,657 $33,356 $5,943 $111,012 
Q-Factor and other qualitative adjustments35,739 2,891 126,940 1,167 4,558 171,295 
Specific allocations5,679 — 2,035 216 21 7,951 
Total$89,319 $8,046 $147,632 $34,739 $10,522 $290,258 
December 31, 2025
Modeled expected credit losses$56,114 $7,215 $17,018 $24,390 $5,315 $110,052 
Q-Factor and other qualitative adjustments25,706 3,648 116,857 610 5,350 152,171 
Specific allocations
16,619 700 1,235 637 81 19,272 
Total$98,439 $11,563 $135,110 $25,637 $10,746 $281,495 
The following table details activity in the allowance for credit losses on loans by portfolio segment for the three and nine months ended September 30, 2026 and 2025. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.
Commercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
Total
Three months ended:
September 30, 2026
Beginning balance$91,420 $9,407 $142,505 $29,146 $11,234 $283,712 
Credit loss expense (benefit)(763)(1,603)5,126 7,460 4,690 14,910 
Charge-offs(2,585)— — (2,195)(8,538)(13,318)
Recoveries1,247 242 1 328 3,136 4,954 
Net (charge-offs) recoveries(1,338)242 1 (1,867)(5,402)(8,364)
Ending balance$89,319 $8,046 $147,632 $34,739 $10,522 $290,258 
September 30, 2025
Beginning balance$95,484 $10,389 $140,923 $21,707 $9,300 $277,803 
Credit loss expense (benefit)2,669 (2,343)86 3,115 5,480 9,007 
Charge-offs(2,742)— — (1,849)(7,022)(11,613)
Recoveries1,256 353 6 386 3,023 5,024 
Net (charge-offs) recoveries(1,486)353 6 (1,463)(3,999)(6,589)
Ending balance$96,667 $8,399 $141,015 $23,359 $10,781 $280,221 
Commercial
and
Industrial
EnergyCommercial
Real Estate
Consumer
Real Estate
Consumer
and Other
Total
Nine months ended:
September 30, 2026
Beginning balance$98,439 $11,563 $135,110 $25,637 $10,746 $281,495 
Credit loss expense (benefit)(3,952)(4,100)14,616 13,800 12,031 32,395 
Charge-offs(8,638)(17)(2,103)(5,871)(21,634)(38,263)
Recoveries3,470 600 9 1,173 9,379 14,631 
Net (charge-offs) recoveries(5,168)583 (2,094)(4,698)(12,255)(23,632)
Ending balance$89,319 $8,046 $147,632 $34,739 $10,522 $290,258 
September 30, 2025
Beginning balance$87,569 $9,992 $143,205 $19,106 $10,279 $270,151 
Credit loss expense (benefit)17,165 (2,428)2,439 7,365 12,960 37,501 
Charge-offs(11,241)(52)(4,639)(4,099)(21,156)(41,187)
Recoveries3,174 887 10 987 8,698 13,756 
Net (charge-offs) recoveries(8,067)835 (4,629)(3,112)(12,458)(27,431)
Ending balance$96,667 $8,399 $141,015 $23,359 $10,781 $280,221 
The following table presents year-to-date gross charge-offs by year of origination as of September 30, 2026.
20262025202420232022PriorRevolving LoansRevolving Loans Converted to TermTotal
Commercial and industrial$162 $738 $727 $880 $532 $187 $3,367 $2,045 $8,638 
Energy— — — — — — — 17 17 
Commercial real estate:
Owner occupied— 37 — — 258 1,754 — — 2,049 
Non-owner occupied— — — — — — — — — 
Construction and land— — — — — 20 — 34 54 
Consumer real estate— — 431 1,291 1,101 503 2,545 — 5,871 
Consumer and other15,343 3,837 152 20 54 10 1,616 602 21,634 
Total$15,505 $4,612 $1,310 $2,191 $1,945 $2,474 $7,528 $2,698 $38,263 
In the table above, $15.3 million of the consumer and other loan charge-offs reported as 2026 originations and $3.7 million of the total reported as 2025 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 September 30, 2026 and December 31, 2025.
September 30, 2026December 31, 2025
Loan
Balance
Specific AllocationsLoan
Balance
Specific Allocations
Commercial and industrial$18,129 $5,679 $48,456 $16,619 
Energy2,163 — 3,023 700 
Commercial real estate:
Owner occupied11,429 622 7,069 722 
Non-owner occupied4,231 — 466 — 
Construction and land19,357 1,413 1,672 513 
Consumer real estate3,949 216 6,140 637 
Consumer and other21 21 81 81 
Total$59,279 $7,951 $66,907 $19,272