
	March 31, 2021		December 31, 2020

	(Dollars in thousands)
Commercial	$	1,284,047	$	1,338,757
Energy	342,899		345,233
Commercial real estate	1,191,634		1,179,534
Construction and land development	617,200		563,144
Residential and multifamily real estate	687,893		680,932
Paycheck Protection Program (“PPP”)	336,355		292,230


Consumer	62,917		55,270
Gross loans	4,522,945		4,455,100
Less: Allowance for loan losses	74,551		75,295
Less: Net deferred loan fees and costs	14,345		13,203
Net loans	$	4,434,049	$	4,366,602

The ALLL is established as losses are estimated to have occurred through a provision for loan losses charged to income. Loan losses are charged against the allowance when management believes the loan balance is not collectible. Subsequent recoveries, if any, are credited to the allowance.

The ALLL is evaluated on a regular basis by management and is based upon management’s periodic review of its ability to collect the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available.

The ALLL consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For those loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers all loans on

accrual and is based on historical charge-off experience and expected loss given default derived from the Company’s internal risk rating process and loan categories. Other adjustments may be made to the allowance for pools of loans after an assessment of internal or external influences on credit quality that are not fully reflected in the historical loss or risk rating data.

The Company evaluates the loan risk grading system definitions, portfolio segment definitions and ALLL methodology on an ongoing basis. No changes to loan definitions, segmentation, and ALLL methodology occurred during the first quarter of 2021.

The following tables summarize the activity in the ALLL by portfolio segment and disaggregated based on the Company’s impairment methodology. The allocation in one portfolio segment does not preclude its availability to absorb losses in other segments:


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended March 31, 2021
Allowance for loan losses
Beginning balance	$	24,693	$	18,341	$	22,354	$	3,612	$	5,842	$	—	$	453	$	75,295
Provision charged to expense	7,015		1,951		(1,745)		225		214		—		(160)		7,500
Charge-offs	(8,266)		—		—		—		—		—		—		(8,266)
Recoveries	22		—		—		—		—		—		—		22
Ending balance	$	23,464	$	20,292	$	20,609	$	3,837	$	6,056	$	—	$	293	$	74,551


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended March 31, 2020
Allowance for loan losses
Beginning balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Provision charged to expense	3,271		2,313		4,538		1,505		2,141		—		182		13,950
Charge-offs	(18,077)		(1,279)		—		—		—		—		(104)		(19,460)
Recoveries	71		—		—		—		—		—		1		72
Ending balance	$	21,129	$	7,599	$	12,623	$	5,021	$	4,687	$	—	$	399	$	51,458


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
March 31, 2021
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	832	$	4,938	$	2,990	$	—	$	—	$	—	$	—	$	8,760
Collectively evaluated for impairment	$	22,632	$	15,354	$	17,619	$	3,837	$	6,056	$	—	$	293	$	65,791
Ending balance	$	23,464	$	20,292	$	20,609	$	3,837	$	6,056	$	—	$	293	$	74,551

Allocated to loans:
Individually evaluated for impairment	$	39,287	$	27,215	$	36,028	$	—	$	6,302	$	—	$	241	$	109,073
Collectively evaluated for impairment	$	1,244,760	$	315,684	$	1,155,606	$	617,200	$	681,591	$	336,355	$	62,676	$	4,413,872
Ending balance	$	1,284,047	$	342,899	$	1,191,634	$	617,200	$	687,893	$	336,355	$	62,917	$	4,522,945


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
December 31, 2020
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	1,115	$	3,370	$	5,048	$	—	$	—	$	—	$	—	$	9,533
Collectively evaluated for impairment	$	23,578	$	14,971	$	17,306	$	3,612	$	5,842	$	—	$	453	$	65,762
Ending balance	$	24,693	$	18,341	$	22,354	$	3,612	$	5,842	$	—	$	453	$	75,295
Allocated to loans:
Individually evaluated for impairment	$	44,678	26,045		$	44,318	$	—	$	6,329	$	—	$	244	$	121,614
Collectively evaluated for impairment	$	1,294,079	$	319,188	$	1,135,216	$	563,144	$	674,603	$	292,230	$	55,026	$	4,333,486
Ending balance	$	1,338,757	$	345,233	$	1,179,534	$	563,144	$	680,932	$	292,230	$	55,270	$	4,455,100

The Company analyzes its loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation and payment activity. These categories are utilized to develop the associated ALLL. A description of the loan grades and segments follows:

•Pass (risk rating 1-4) - The category includes loans that are considered satisfactory. The category includes borrowers that generally maintain good liquidity and financial condition or the credit is currently protected with sales trends remaining flat or declining. Most ratios compare favorably with industry norms and Company policies. Debt is programmed and timely repayment is expected.

•Special Mention (risk rating 5) - The category includes borrowers that generally exhibit adverse trends in operations or an imbalanced position in their balance sheet that has not reached a point where repayment is jeopardized. Credits are currently protected but, if left uncorrected, the potential weaknesses may result in deterioration of the repayment prospects for the credit or in the Company’s credit or lien position at a future date. These credits are not adversely classified and do not expose the Company to enough risk to warrant adverse classification.

•Substandard (risk rating 6) - The category includes borrowers that generally exhibit well-defined weakness(es) that jeopardize repayment. Credits are inadequately protected by the current worth and paying capacity of the obligor or of the collateral pledged. A distinct possibility exists that the Company will sustain some loss if deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified substandard. Substandard loans include both performing and nonperforming loans and are broken out in the table below.

•Doubtful (risk rating 7) - The category includes borrowers that exhibit weaknesses inherent in a substandard credit and characteristics that these weaknesses make collection or liquidation in full highly questionable or improbable based on existing facts, conditions and values. Because of reasonably specific pending factors, which may work to the advantage and strengthening of the assets, classification as a loss is deferred until its more exact status may be determined.

•Commercial - The category includes loans to commercial customers for use in financing working capital, equipment purchases and expansions. Repayment is primarily from the cash flow of a borrower’s principal business operation. Credit risk is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations.

•Energy - The category includes loans to oil and natural gas customers for use in financing working capital needs, exploration and production activities, and acquisitions. The loans are repaid primarily from the conversion of crude oil and natural gas to cash. Credit risk is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations. Energy loans are typically collateralized with the underlying oil and gas reserves.

•Commercial Real Estate - The category includes loans that typically involve larger principal amounts and repayment of these loans is generally dependent on the successful operations of the property securing the loan or the business conducted on the property securing the loan. These are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Credit risk may be impacted by the creditworthiness of a borrower, property values and the local economies in the borrower’s market areas.

•Construction and Land Development - The category includes loans that are usually based upon estimates of costs and estimated value of the completed project and include independent appraisal reviews and a financial analysis of the developers and property owners. Sources of repayment include permanent loans, sales of developed property or an interim loan commitment from the Company until permanent financing is obtained. These loans are higher risk than other real estate loans due to their ultimate repayment being sensitive to interest rate changes, general economic conditions and the availability of long-term financing. Credit risk may be impacted by the creditworthiness of a borrower, property values and the local economies in the borrower’s market areas.

•Residential and Multifamily Real Estate - The category includes loans that are generally secured by owner-occupied 1-4 family residences or multifamily properties. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers or underlying tenants. Credit risk in these loans can be impacted by economic

•PPP - The category includes loans that were established by the CARES Act which authorized forgivable loans to small businesses to pay their employees during the COVID-19 pandemic. The loans are 100 percent guaranteed by the SBA and repayment is primarily dependent on the borrower’s cash flow or SBA repayment approval.

•Consumer - The category includes revolving lines of credit and various term loans such as automobile loans and loans for other personal purposes. Repayment is primarily dependent on the personal income and credit rating of the borrowers. Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the borrower’s market area) and the creditworthiness of a borrower.

The following tables present the credit risk profile of the Company’s loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation, and payment activity:



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
March 31, 2021
Commercial	$	1,171,818	$	43,247	$	46,912	$	20,409	$	1,661	$	—	$	1,284,047
Energy	141,441		82,314		92,032		23,421		3,691		—		342,899
Commercial real estate	1,054,675		66,101		60,037		10,821		—		—		1,191,634
Construction and land development	616,061		—		1,139		—		—		—		617,200
Residential and multifamily real estate	679,335		43		5,440		3,075		—		—		687,893
PPP	336,355		—		—		—		—		—		336,355


Consumer	62,676		—		—		241		—		—		62,917
	$	4,062,361	$	191,705	$	205,560	$	57,967	$	5,352	$	—	$	4,522,945



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
December 31, 2020
Commercial	$	1,182,519	$	66,142	$	63,407	$	26,124	$	565	$	—	$	1,338,757
Energy	145,598		90,134		83,574		22,177		3,750		—		345,233
Commercial real estate	1,035,056		67,710		57,680		19,088		—		—		1,179,534
Construction and land development	561,871		125		1,148		—		—		—		563,144
Residential and multifamily real estate	672,327		305		5,199		3,101		—		—		680,932
PPP	292,230		—		—		—		—		—		292,230


Consumer	55,026		—		—		244		—		—		55,270
	$	3,944,627	$	224,416	$	211,008	$	70,734	$	4,315	$	—	$	4,455,100


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
March 31, 2021
Commercial	$	7,813	$	403	$	15,709	$	23,925	$	1,260,122	$	1,284,047	$	—
Energy	748		—		6,741		7,489		335,410		342,899		—
Commercial real estate	—		—		4,097		4,097		1,187,537		1,191,634		—
Construction and land development	862		—		—		862		616,338		617,200		—
Residential and multifamily real estate	1,160		—		6,028		7,188		680,705		687,893		3,183
PPP	—		—		—		—		336,355		336,355		—


Consumer	—		—		—		—		62,917		62,917		—
	$	10,583	$	403	$	32,575	$	43,561	$	4,479,384	$	4,522,945	$	3,183


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
December 31, 2020
Commercial	$	8,497	$	264	$	11,236	$	19,997	$	1,318,760	$	1,338,757	$	—
Energy	—		—		7,173		7,173		338,060		345,233		372
Commercial real estate	63		7,677		4,825		12,565		1,166,969		1,179,534		—
Construction and land development	—		—		—		—		563,144		563,144		—
Residential and multifamily real estate	1,577		—		3,520		5,097		675,835		680,932		652
PPP	—		—		—		—		292,230		292,230		—
Consumer	—		—		—		—		55,270		55,270		—
	$	10,137	$	7,941	$	26,754	$	44,832	$	4,410,268	$	4,455,100	$	1,024

A loan is considered impaired, in accordance with the impairment accounting guidance (ASC 310-10-35-16), when based on current information and events, it is probable the Company will be unable to collect all amounts due from the borrower in accordance with the contractual terms of the loan. Impaired loans include nonperforming loans but also include loans modified in troubled debt restructurings where concessions have been granted to borrowers experiencing financial difficulties. The intent of concessions is to maximize collection.

Groups of loans with similar risk characteristics are collectively evaluated for impairment based on the group’s historical loss experience adjusted for changes in trends, conditions and other relevant factors that affect repayment of the loans. The following tables present loans individually evaluated for impairment, including all restructured and formerly restructured loans, for the periods ended March 31, 2021 and December 31, 2020:


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
March 31, 2021
Loans without a specific valuation
Commercial	$	36,174	$	38,124	$	—
Energy	103		103		—
Commercial real estate	10,553		12,138		—
Construction and land development	—		—		—
Residential and multifamily real estate	6,302		6,558		—
PPP	—		—		—


Consumer	241		241		—
Loans with a specific valuation
Commercial	3,113		15,297		832
Energy	27,112		35,204		4,938
Commercial real estate	25,475		25,475		2,990
Construction and land development	—		—		—
Residential and multifamily real estate	—		—		—
PPP	—		—		—


Consumer	—		—		—


Total
Commercial	39,287		53,421		832
Energy	27,215		35,307		4,938
Commercial real estate	36,028		37,613		2,990
Construction and land development	—		—		—
Residential and multifamily real estate	6,302		6,558		—
PPP	—		—		—


Consumer	241		241		—
	$	109,073	$	133,140	$	8,760

The table below shows interest income recognized during the three month periods ended March 31, 2021 and 2020 for impaired loans, including all restructured and formerly restructured loans, held at the end of each period:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Commercial	$	303	$	910
Energy	16		122
Commercial real estate	287		123
Construction and land development	—		—
Residential and multifamily real estate	36		40
PPP	—		—


Consumer	—		—
Total interest income recognized	$	642	$	1,195

The table below shows the three month average balance of impaired loans for the periods ended March 31, 2021 and 2020 by loan category for impaired loans, including all restructured and formerly restructured loans, held at the end of each period:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Commercial	$	41,919	$	86,626
Energy	27,431		16,976
Commercial real estate	36,215		14,927
Construction and land development	—		—
Residential and multifamily real estate	6,316		5,230
PPP	—		—
Consumer	243		254
Total average impaired loans	$	112,124	$	124,013

Non-accrual loans are loans for which the Company does not record interest income. The accrual of interest on loans is discontinued at the time the loan is 90 days past due unless the credit is well secured and in process of collection. Past due status is based on contractual terms of the loan. In all cases, loans are placed on non-accrual or charged off at an earlier date, if collection of principal or interest is considered doubtful.

All interest accrued but not collected for loans that are placed on non-accrual or charged off are reversed against interest income. The interest on these loans is accounted for on the cash basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The following table presents the Company’s non-accrual loans by loan category at March 31, 2021 and December 31, 2020:



	March 31, 2021		December 31, 2020
	(Dollars in thousands)
Commercial	$	22,070	$	26,691
Energy	27,112		25,927
Commercial real estate	10,821		19,088
Construction and land development	—		—
Residential and multifamily real estate	3,075		3,101
PPP	—		—
Consumer	241		244
Total non-accrual loans	$	63,319	$	75,051

Restructured loans are those extended to borrowers who are experiencing financial difficulty and who have been granted a concession, excluding loan modifications as a result of the COVID-19 pandemic. The modification of terms typically includes the extension of maturity, reduction or deferment of monthly payment, or reduction of the stated interest rate.

For the three month periods ended March 31, 2021 and 2020, the modifications related to the TDRs below did not impact the ALLL because the loans were previously impaired and evaluated on an individual basis or enough collateral was obtained.

The table below presents loans restructured, excluding loans restructured as a result of the COVID-19 pandemic, during the three months ended March 31, 2021 and 2020, including the post-modification outstanding balance and the type of concession made:


	Three Months Ended
	March 31,		March 31,
	2021		2020
	(Dollars in thousands)
Commercial
- Interest rate reduction	$	—	$	3,171


Energy
- Extension of maturity date	—		2,340










Total troubled debt restructurings	$	—	$	5,511

The balance of restructured loans, excluding loans restructured as a result of the COVID-19 pandemic, is provided below as of March 31, 2021 and December 31, 2020. In addition, the balance of those loans that are in default at any time during the past twelve months at March 31, 2021 and December 31, 2020 is provided below:



	March 31, 2021					December 31, 2020
	Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)		Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)
	(Dollars in thousands)
Commercial	6	$	21,631	$	4,115	7	$	22,759	$	2,776
Energy	4	10,850		2,619		4	11,053		2,713
Commercial real estate	4	25,990		—		4	26,038		—
Construction and land development	—	—		—		—	—		—
Residential and multifamily real estate	2	3,244		—		2	3,245		—
PPP	—	—		—		—	—		—
Consumer	—	—		—		—	—		—
Total troubled debt restructured loans	16	$	61,715	$	6,734	17	$	63,095	$	5,489
(1) Default is considered to mean 90 days or more past due as to interest or principal.