8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC  20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April20, 2016

SOUTHWEST BANCORP, INC.

(Exact name of registrant as specified in its charter)

Oklahoma	001-34110	73-1136584
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

608 South Main Street, Stillwater, Oklahoma	74074
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (405) 742-1800

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[X]Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[   ]Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[   ]Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[   ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02. Results of Operations and Financial Condition.

On April20, 2016,  Southwest Bancorp, Inc. (the “Company”) issued a press release reporting its results of operations and its financial condition for the quarter ended March31, 2016.  The text of the press release is included as Exhibit 99.1 to this Current Report on Form 8-K.

Item 8.01.  Other Events.

On Wednesday,  April20, 2016, at 10:00 a.m. Central Time, the Company will host an investor conference call and webcast to review its firstquarter 2016 financial results. The webcast will include a slide presentation which consists of information regarding the Company's operating and growth strategies and financial performance. The presentation materials will be posted on the Company's website on April20, 2016.The presentation materials are attached hereto as Exhibit 99.2.

Item 9.01 Financial Statements and Exhibits.

(d)Exhibits:

99.1:Press Release dated April20,  2016

99.2:Presentation materials

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 hereunto duly authorized.

April20, 2016

SOUTHWEST BANCORP, INC.

By:  /s/ Mark W. Funke
Name:Mark W. Funke
Title:   President and CEO

Exhibit Index

Exhibit No.	Description	Method of Filing
99.1	Press Release dated April20, 2016	Filed herewith electronically
99.2	Presentation materials	Filed herewith electronically

EX-99.1

For additional information:
           Mark W. Funke
           President & CEO
           Joe T. Shockley, Jr.
           EVP & CFO
           (405) 372-2230

For Immediate Release

Southwest Bancorp, Inc. Reports Results forFirstQuarter 2016

and Announces Quarterly Dividend

April20, 2016, Stillwater, Oklahoma . . . . Southwest Bancorp, Inc. (NASDAQ Global Select Market - OKSB), (“Southwest”), today reported net income for the first quarter of 2016 of  $1.9 million, or $0.10 per diluted share, compared to $4.5 million, or $0.24per diluted share, for the first quarter of 2015.  The decrease in first quarter net income was due to a $4.4 million loan loss provision primarily driven by the impact of low energy prices combined with deterioration in a few general business credits.

Southwestannouncedthat its board of directors has approved aquarterly cash dividendof $0.08 per sharepayableMay 13, 2016to shareholders of record as of April 29, 2016.

Mark Funke, President and CEO, stated, “We continued to have strong loan production during the first quarter, but the net growth was reduced by expected payoffs on realestate loans.  As energy prices remain low, we identified certain energy related exposure along with deterioration in a few general business credits that caused us to increase our loan loss reserve.  Here are several highlights to take from this quarter.

· Total loans grew to $1.78 billion, a slight increase over year-end 2015 and a 24% increase compared to the first quarter of 2015.  We  funded $108.8 million in new loans  during the first quarter of 2016 making this quarter our ninth consecutive quarter of loan growth.

· The quarterly net interest margin improved to 3.54% at March 31, 2016 compared to 3.48% at December 31, 2015.

· Pre-tax, pre-provision income was $7.3 million for the first quarter, an increase of 10% from $6.6 million in the fourth quarter of 2015 and an increase of 35% from $5.4 million in the first quarter of 2015.

· On February 23, 2016 our board of directors authorized a third consecutive share repurchase program of up to another 5.0%, or approximately 967,000 shares, which became effective during the first quarterupon the completion of the repurchase of all of the shares under the prior program.During the first quarter of 2016, Southwest purchased 803,546 shares for a total of $12.7 million, and since August 2014, Southwest has repurchased 1,925,104 shares for a total of $31.4 million.

“Although the quarter was less than we expected, we will continue to focus our company on producing consistent, conservative, and sustainable earnings through the expansion of our revenue base while prudently managing risk and expenses.”

Financial Overview

Condition:As of March  31, 2016, total assets were $2.4 billion, an increase of $3.8 million,when compared toDecember  31, 2015.As of March  31, 2016, total loans were $1.8 billion, an increaseof $2.5 million from the prior quarter end.As of March 31, 2016,  investment securitieswere $423.0 million, an increaseof $10.9 million from the

prior quarter end.Cash and cash equivalents at March  31, 2016  were $67.4million,  down $10.8 million from December31, 2015. 

At March  31, 2016, the allowance for loan losses was $27.2 million,an increase of  $1.1 million when compared to December  31, 2015 and a decrease of  $0.1 million when compared to March  31, 2015.  The allowance for loan losses to portfolio loans was 1.53%  as of March 31, 2016, up from 1.47% as of December  31,  2015,  and down from 1.91% as of March  31, 2015.  The allowance for loan losses to nonperforming loans was 122.012%  as of March31, 2016, compared to 128.23% as of December  31, 2015 and 297.78% as of March  31, 2015.The total allowance for loan losses combined with the purchase discount on acquired loans represents1.96% of gross loans as of March 31, 2016, compared to 1.94% as of December 31, 2015. 

Nonperforming loans were  $22.3  million at March 31, 2016,  anincrease of $2.0 million from December  31, 2015,and an increase of $13.1 millionfrom March  31, 2015.  Other real estate atMarch  31, 2016 was $2.3 million, which is flat from December 31, 2015,  andMarch  31, 2015.  Nonperforming assets were $24.5 million, or 1.38% of portfolio loans and other real estate, as of March  31, 2016, compared to $22.6 million, or 1.28% of portfolio loans and other real estate, as of December  31, 2015, and $11.4 million, or 0.80% of portfolio loans and other real estate, as of March  31, 2015.  

As of March  31, 2016, total deposits were $1.9 billion, an increase of $11.1  million,  when compared toDecember  31, 2015.Total core funding, which includes all non-brokered deposits and sweep repurchase agreements, comprised87%and 88% of total funding as of March  31, 2016 and December 31, 2015, respectively.  Wholesale funding, including Federal Home Loan Bank borrowings, federal funds purchased, and brokered deposits, accounted for 13%  and 12%  of total funding at March  31, 2016 and December  31, 2015, respectively.  See Table 6  for details on core funding and non-brokered deposits, which are non-GAAP financial measures.

The capital ratios of Southwest and Bank SNB as of March  31, 2016 exceeded the criteria for regulatory classification as “well-capitalized”.  Southwest’s total regulatory capital was $343.3 million, for a total risk-based capital ratio of 15.39%, Common Equity Tier 1 capital was $270.6 million, for a Common Equity Tier 1 ratio of 12.13%, and Tier 1 capital was $315.3million, for a Tier 1 risk-based capital ratio of 14.14%.  Bank SNB had total regulatory capital of  $321.4 million, for a total risk-based capital ratio of 14.46% and Common Equity Tier 1 and Tier 1 capital of $293.5million, for a Common Equity Tier 1 and Tier 1 ratio of 13.21%.  Designation as a well-capitalized institution under regulations does not constitute a recommendation or endorsement by bank regulators.

FirstQuarter Results:

Summary:  For the firstquarter of 2016, net income was $1.9 million, compared to $4.6 million for the fourth quarter of 2015 and $4.5 million for the firstquarter of 2015.  Pre-tax, pre-provision income for the first quarter of 2016 was $7.3 million, compared to $6.6 million for the fourth quarter of 2015 and $5.4 million for the first quarter of 2015.

The $2.7 million decrease in net income compared to the fourth quarter of 2015was primarily due toa $4.4 million provision for loan losses versus a negative provision for loan losses of $0.6 million in the prior quarter.  The decrease in net income also includes a $0.8 million decrease in noninterest income, offset in part by a $0.3 million increase in net interest income, a $1.1 million decrease in noninterest expense, and a $1.6 million decrease in income taxes.

The $2.7 million decrease in our net income compared to the first quarter of 2015 was again primarily due to a $4.4 million provision for loan losses versus a negative provision of loan losses of $1.9 million in first quarter 2015.  The decrease in net income also includes a $2.9 million increase in noninterest expense, offset in part by a $4.2 million increase in net interest income, a $0.6 million increase in noninterest income, and a $1.7 million decrease in income taxes.The increase in noninterest expense, net interest income, and noninterest income are due in part to the First Commercial Bancshares, Inc. acquisition that occurred in the fourth quarter of 2015.

Net Interest Income:Net interest income totaled $19.8million forthe firstquarter of 2016, compared to $19.5 million for the fourth quarter of 2015 and$15.6 million for the first quarter of 2015.Net interest margin was 3.54% for the firstquarter of 2016, compared to 3.48% for the fourth quarter of 2015 and 3.25% for the first quarter of 2015.Included in interest income forboth the first quarter of 2016and the fourth quarter of 2015 was $0.3 million of accelerated discount accretion, respectively.  The net effect of these adjustments on the net interest margin was a

5 basis point increase, respectively for each quarter.Loans (including loans held for sale) for the first quarter of 2016increased $2.5 millionwhen compared to December  31, 2015, and $343.6 million when compared to March  31, 2015.Loans acquired in the fourth quarter of 2015 were $202.4 million.

Provision (Credit) for Loan Losses and Net Charge-offs:  The provision for loan losses is the amount that is required to maintain the allowance for loan losses at an appropriate level based upon the inherent risks in the loan portfolio after the effects of net charge-offs or net recoveries for the period.  The provision for loan losses was a provision of $4.4 million for the firstquarter of 2016, compared to a  negative provision of $0.6 million for the fourth quarter of 2015, and a  negative provision of $1.9 million for the first quarter of 2015.  The first quarter 2016 provision was driven primarily by the impact of low energy prices combined with deterioration in a few general business credits.  During the firstquarter of 2016,  netcharge-offs totaled  $3.3 million, or 0.75% (annualized) of average portfolio loans, compared to net recoveries of $0.1 million, or (0.02%) (annualized) of average portfolio loans for the fourth quarter of 2015 and net recoveriesof $0.7 million, or (0.20%) (annualized) of average portfolio loans for the first quarter of 2015.

Noninterest Income:  Noninterest income totaled $3.4  million for the firstquarter of 2016, compared to $4.2 million for the fourth quarter of 2015 and $2.8 million forthe first quarter of 2015.

The $0.8 million decrease  from the fourth  quarter of 2015is the result ofa  $0.1 million decrease in service charges and fees,  a$0.2 million decrease in the gain on sales of mortgage loans, which is due to a valuation adjustment on mortgage servicing rights, and a $0.5 million decrease in other noninterest income, primarily due to customer risk management interest rate swap income, offset in part by a  $0.1 million gain recognized on the sale of investment securities during the quarter.

The $0.6 million increase from the first quarter of 2015 is primarily the result of a  $0.1 million increase in service charges and fees, a $0.1 million increase in the gain on sales of mortgage loans, a $0.1 million increase in gain on sale of investment securities, and a$0.3 million increase in other noninterest income, primarily income on bank owned life insurance.

Noninterest Expense:Noninterest expense totaled $16.0million for the firstquarter of 2016, compared to $17.1 million for the fourth quarter of 2015 and$13.1 million for the first quarter of 2015. 

The $1.1 million decrease in noninterest expense from the fourth quarter of 2015 was primarily due to a  $0.9 million decrease in personnel expense and a $0.4 million decrease in data processing, offset in part by a $0.1 million increase in occupancy and a  $0.1 million increase in general and administrative expense, which includes a $0.4 million increase in the provision for unfunded loan commitments offset by $0.1 million decrease in legal fees, 0.1 million decrease in marketing expense, and a $0.1 million decrease in professional fees.

The $2.9 million increase in noninterest expense from the first quarter of 2015 consisted of a  $1.4 million increase in personnel expense, a $0.4 million increase in occupancy, a $0.1 million increase in FDIC and other insurance, and a $1.0 million increase in general and administrative expense, which includes a $0.4 million increase in the provision for unfunded loan commitments, a $0.2 million increase in business development expenses, a $0.1 million increase in intangible amortization expense.

Income Tax:  Income tax expense totaled $1.0  million for the firstquarter of 2016, compared to  $2.6 million for the fourth quarter of 2015 and$2.7 million for the first quarter of 2015.  The income tax expense fluctuates in relation to pre-tax income levels.  The firstquarter of 2016 effective tax rate was 35.19%,  compared to 35.96% for the fourth quarter of 2015 and 37.50% for the first quarter of 2015. The decline in the effective tax rate includes the impact of an increase in tax exempt income, as a percentage of pre-tax income.

Conference Call

Southwest will host a conference call to review these results on Wednesday, April  20, 2016 at 11:00 a.m. Eastern Time (10:00 a.m. Central Time).  Investors, news media, and others may pre-register for the call using the following link to receive a special dial-in number and PIN:  http://dpregister.com/10083475.  Telephone participants who are unable to pre-register may access the call by telephone at 866-218-2402 (toll-free) or 412-902-4190 (international).  Participants are encouraged to dial into the call approximately 10 minutes prior to the start time.  The call and corresponding presentation slides will be webcast live on Southwest’s website at www.oksb.com or http://services.choruscall.com/links/oksb160420.  An audio replay will be available one hour after the call at 877-

344-7529 (toll-free) or 412-317-0088 (international),  conference number 10083475.  Telephone replay access will be available until 9:00 a.m. Eastern Time on May 20, 2016.

Southwest Bancorp and Subsidiaries

Southwest is the holding company for Bank SNB, an Oklahoma state banking corporation(“Bank SNB”). Bank SNB offers commercial and consumer lending, deposit and investment services, specialized cash management, and other financial services from offices in Oklahoma, Texas, Kansas, and Colorado.  Bank SNB was chartered in 1894 and Southwest was organized in 1981 as the holding company.  At March 31, 2016,  Southwest had total assets of approximately  $2.4 billion, deposits of $1.9 billion, and shareholders’ equity of $285.7 million.

Southwest’s area of expertise focuses on the special financial needs of healthcare and health professionals, businesses and their managers and owners, commercial lending, energy banking, and commercial real estate borrowers.  The strategic focus on healthcare lending was established in 1974.  Southwest and its banking subsidiaryprovide credit and other remittance services, such as deposits, cash management, and document imaging for physicians and other healthcare practitioners to start or develop their practices and finance the development and purchase of medical offices, clinics, surgical care centers, hospitals, and similar facilities.  As of March  31, 2016, approximately $427.2 million, or 24%,  of loans were loans to individuals and businesses in the healthcare industry.  Regular market reviews are conducted of (i) current and potential healthcare lending business,and (ii) the appropriate concentrations within healthcare based upon economic and regulatory conditions.

Southwest’s common stock is traded on the NASDAQ Global Select Market under the symbol OKSB. 

Caution About Forward-Looking Statements

Southwest makes forward-looking statements in this news release that are subject to risks and uncertainties.  These statements are intended to be covered by the safe harbor provision for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995.

These forward-looking statements include: 

· Statements of Southwest's goals, intentions, and expectations;

· Estimates of risks and of future costs and benefits;

· Expectations regarding Southwest’s future financial performance and the financial performance of its operating segments;

· Expectations regarding regulatory actions;

· Expectations regarding Southwest’s ability to utilize tax loss benefits;

· Expectations regarding Southwest’s stock repurchase program;

· Expectations regarding dividends;

· Expectations regarding acquisitions and divestitures;

· Assessments of loan quality, probable loan losses, and the amount and timing of loan payoffs;

· Estimates of the value of assets held for sale or available for sale; and

· Statements of Southwest’s ability to achieve financial and other goals.

These forward-looking statements are subject to significant uncertainties because they are based upon: the amount and timing of future changes in interest rates, market behavior, and other economic conditions; future laws, regulations, and accounting principles; changes in regulatory standards and examination policies, and a variety of other matters. These other matters include, among other things, the direct and indirect effects of economic conditions on interest rates, credit quality, loan demand, liquidity, and monetary and supervisory policies of banking regulators.  Because of these uncertainties, the actual future results may be materially different from the results indicated by these forward-looking statements. In addition, Southwest's past growth and performance do not necessarily indicate future results.  For other factors, risks, and uncertainties that could cause actual results to differ materially from estimates and projections contained in forward-looking statements, please read Southwest’s reports filed with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the year ended December 31, 2015.  You are urged to carefully review and consider the cautionary statements and other disclosures made in those filings, specifically those under the heading “Risk Factors”.

The cautionary statements in this release also identify important factors and possible events that involve risk and uncertainties that could cause actual results to differ materially from those contained in the forward-looking statements.  These forward-looking statements speak only as of the date on which the statements were made.  Southwest does not intend, and undertakes no obligation, to update or revise any forward-looking statements contained in this release, whether as a result of differences in actual results, changes in assumptions, or changes in other factors affecting such statements, except as required by law.

Southwest is required under generally accepted accounting principles to evaluate subsequent events and their impact, if any, on its financial statements as of March 31, 2016 through the date its financial statements are filed with the Securities and Exchange Commission.  The March31,  2016 financial statements included in this release will be adjusted if necessary to properly reflect the impact of subsequent events on estimates used to prepare those statements. 

The Southwest Bancorp, Inc. logo is available at

http://www.globenewswire.com/newsroom/prs/?pkgid=8074

The Bank SNB logo is available at

http://www.globenewswire.com/newsroom/prs/?pkgid=23106

Financial Tables

Unaudited Financial Highlights	Table 1
Unaudited Consolidated Statements of Financial Condition	Table 2
Unaudited Consolidated Statements of Operations	Table 3
Unaudited Average Balances, Yields, and Rates-Quarterly	Table 4
Unaudited Quarterly Summary Loan Data	Table 5
Unaudited Quarterly Summary Financial Data	Table 6
Unaudited Quarterly Supplemental Analytical Data	Table 7

SOUTHWEST BANCORP, INC.
UNAUDITED FINANCIAL HIGHLIGHTS
(Dollars in thousands, except per share) Table 1

	First Quarter					Fourth Quarter
QUARTERLY HIGHLIGHTS	2016		2015		% Change	2015		% Change
Operations
Net interest income	$	19,840	$	15,610	27%	$	19,520	2%
Provision (credit) for loan losses		4,375		(1,887)	(332)		(566)	(873)
Noninterest income		3,415		2,840	20		4,179	(18)
Noninterest expense		15,996		13,082	22		17,099	(6)
Income before taxes		2,884		7,255	(60)		7,166	(60)
Taxes on income		1,015		2,720	(63)		2,577	(61)
Net income		1,869		4,535	(59)		4,589	(59)
Diluted earnings per share		0.10		0.24	(60)		0.23	(58)
Balance Sheet
Total assets		2,360,819		2,003,079	18		2,357,022	0
Loans held for sale		1,803		9,106	(80)		7,453	(76)
Portfolio loans		1,780,081		1,429,139	25		1,771,976	0
Total deposits		1,895,248		1,616,454	17		1,884,105	1
Total shareholders' equity		285,661		271,444	5		296,098	(4)
Book value per common share		14.81		14.26	4		14.80	0
Key Ratios
Net interest margin		3.54%		3.25%			3.48%
Efficiency ratio		68.41		70.47			71.49
Total capital to risk-weighted assets		15.39		19.36			16.79
Nonperforming loans to portfolio loans		1.25		0.64			1.15
Shareholders' equity to total assets		12.10		13.55			12.56
Tangible common equity to tangible assets*		11.49		13.50			11.95
Return on average assets (annualized)		0.32		0.92			0.78
Return on average common equity (annualized)		2.56		6.78			6.14
Return on average tangible common equity (annualized)**		2.71		6.81			6.46

Balance sheet amounts and ratios are as of period end unless otherwise noted.
* This is a Non-GAAP financial measure.  Please see Table 7 for a reconciliation to the most directly comparable GAAP based measure.
** This is a Non-GAAP financial measure.
Please see accompanying tables for additional financial information.

SOUTHWEST BANCORP, INC.
UNAUDITED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION
(Dollars in thousands) Table 2

	March 31,		December 31,		March 31,
	2016		2015		2015
Assets
Cash and due from banks	$	27,102	$	24,971	$	20,510
Interest-bearing deposits		40,251		53,158		133,886
Cash and cash equivalents		67,353		78,129		154,396
Securities held to maturity (fair values of $12,248, $12,282, and $11,921 respectively)		11,757		11,797		11,393
Securities available for sale (amortized cost of $409,093, $401,136 and $363,352, respectively)		411,273		400,331		366,152
Loans held for sale		1,803		7,453		9,106
Loans receivable		1,780,081		1,771,975		1,429,139
Less: Allowance for loan losses		(27,168)		(26,106)		(27,250)
Net loans receivable		1,752,913		1,745,869		1,401,889
Accrued interest receivable		5,838		5,767		4,974
Non-hedge derivative asset		4,307		1,793		1,273
Premises and equipment, net		23,533		23,819		18,437
Other real estate		2,274		2,274		2,255
Goodwill		13,467		13,467		1,214
Other intangible assets, net		6,145		6,615		3,866
Other assets		60,156		59,708		28,124
Total assets	$	2,360,819	$	2,357,022	$	2,003,079
Liabilities
Deposits:
Noninterest-bearing demand	$	552,499	$	596,494	$	506,952
Interest-bearing demand		168,210		151,015		140,659
Money market accounts		540,323		534,357		488,569
Savings accounts		56,235		56,333		34,413
Time deposits of $100,000 or more		348,783		311,538		227,426
Other time deposits		229,198		234,368		218,435
Total deposits		1,895,248		1,884,105		1,616,454
Accrued interest payable		894		867		770
Non-hedge derivative liability		4,307		1,793		1,273
Other liabilities		10,553		11,684		8,167
Other borrowings		117,763		110,927		58,578
Subordinated debentures		46,393		51,548		46,393
Total liabilities		2,075,158		2,060,924		1,731,635
Shareholders' equity
Common stock - $1 par value; 40,000,000 shares authorized;
21,225,034, 21,138,028 and 19,900,350 shares issued, respectively		21,225		21,138		19,900
Additional paid-in capital		122,070		121,966		101,395
Retained earnings		173,496		173,210		163,818
Accumulated other comprehensive income (loss)		546		(1,290)		673
Treasury stock, at cost, 1,939,989, 1,131,226 and 867,310 shares, respectively		(31,676)		(18,926)		(14,342)
Total shareholders' equity		285,661		296,098		271,444
Total liabilities and shareholders' equity	$	2,360,819	$	2,357,022	$	2,003,079

SOUTHWEST BANCORP, INC.
UNAUDITED CONSOLIDATED STATEMENTS OFOPERATIONS
(Dollars in thousands) Table 3

	For the three months ended
	March 31,		December 31,		March 31,
	2016		2015		2015
Interest income
Loans	$	20,030	$	19,725	$	15,570
Investment securities		1,965		1,813		1,553
Other interest-earning assets		53		46		101
Total interest income		22,048		21,584		17,224
Interest expense
Interest-bearing deposits		1,307		1,196		835
Other borrowings		309		261		227
Subordinated debentures		592		607		552
Total interest expense		2,208		2,064		1,614
Net interest income		19,840		19,520		15,610
Provision (credit) for loan losses		4,375		(566)		(1,887)
Net interest income after provision for loan losses		15,465		20,086		17,497
Noninterest income
Service charges and fees		2,549		2,676		2,428
Gain on sales of mortgage loans		401		645		348
Gain on sale/call of investment securities, net		126		-		5
Other noninterest income		339		858		59
Total noninterest income		3,415		4,179		2,840
Noninterest expense
Salaries and employee benefits		9,342		10,273		7,914
Occupancy		2,671		2,586		2,284
Data processing		470		847		446
FDIC and other insurance		368		384		312
Other real estate, net		13		8		21
General and administrative		3,132		3,001		2,105
Total noninterest expense		15,996		17,099		13,082
Income before taxes		2,884		7,166		7,255
Taxes on income		1,015		2,577		2,720
Net income	$	1,869	$	4,589	$	4,535
Basic earnings per common share	$	0.10	$	0.23	$	0.24
Diluted earnings per common share		0.10		0.23		0.24
Common dividends declared per share		0.08		0.06		0.06

SOUTHWEST BANCORP, INC.
UNAUDITED AVERAGE BALANCES, YIELDS, AND RATES – QUARTERLY
(Dollars in thousands) Table 4

	For the three months ended
	March 31, 2016			December 31, 2015			March 31, 2015
	Average		Average	Average		Average	Average		Average
	Balance		Yield/Rate	Balance		Yield/Rate	Balance		Yield/Rate
Assets
Loans	$	1,788,992	4.50%	$	1,744,374	4.49%	$	1,419,137	4.45%
Investment securities		412,307	1.92		413,701	1.74		367,877	1.71
Other interest-earning assets		51,031	0.42		64,562	0.28		158,940	0.26
Total interest-earning assets		2,252,330	3.94		2,222,637	3.85		1,945,954	3.59
Other assets		107,874			101,003			49,460
Total assets	$	2,360,204		$	2,323,640		$	1,995,414
Liabilities and Shareholders' Equity
Interest-bearing demand deposits	$	160,638	0.16%	$	137,154	0.15%	$	138,895	0.10%
Money market accounts		542,800	0.24		541,976	0.18		484,639	0.15
Savings accounts		55,834	0.14		53,603	0.13		33,350	0.10
Time deposits		564,213	0.65		548,145	0.63		434,409	0.57
Total interest-bearing deposits		1,323,485	0.40		1,280,878	0.37		1,091,293	0.31
Other borrowings		117,171	1.06		80,343	1.29		72,307	1.27
Subordinated debentures		48,546	4.88		51,044	4.76		46,393	4.76
Total interest-bearing liabilities		1,489,202	0.60		1,412,265	0.58		1,209,993	0.54
Noninterest-bearing demand deposits		563,022			594,537			503,275
Other liabilities		14,769			20,149			10,918
Shareholders' equity		293,211			296,689			271,228
Total liabilities and shareholders' equity	$	2,360,204		$	2,323,640		$	1,995,414
Net interest income and spread			3.34%			3.27%			3.05%
Net interest margin (1)			3.54%			3.48%			3.25%
Average interest-earning assets
to average interest-bearing liabilities		151.24%			157.38%			160.82%
(1) Net interest margin = annualized net interest income / average interest-earning assets

SOUTHWEST BANCORP, INC.
UNAUDITED QUARTERLY SUMMARY LOAN DATA
(Dollars in thousands) Table 5

	2016		2015
	Mar. 31		Dec. 31		Sep. 30		Jun. 30		Mar. 31
LOAN COMPOSITION
Real estate mortgage:
Commercial	$	878,822	$	938,462	$	869,250	$	759,406	$	759,676
One-to-four family residential		158,078		161,958		95,906		85,338		86,343
Real estate construction:
Commercial		156,454		129,070		126,407		186,140		192,052
One-to-four family residential		24,202		21,337		12,866		13,107		12,586
Commercial		543,822		507,173		423,480		384,788		366,282
Installment and consumer:
Other		20,506		21,429		20,185		20,651		21,306
Total loans, including held for sale		1,781,884		1,779,429		1,548,094		1,449,430		1,438,245
Less allowance for loan losses		(27,168)		(26,106)		(26,593)		(26,219)		(27,250)
Total loans, net	$	1,754,716	$	1,753,323	$	1,521,501	$	1,423,211	$	1,410,995
LOANS BY SEGMENT
Oklahoma banking****	$	1,060,482	$	1,048,473	$	832,282	$	810,367	$	814,949
Texas banking		560,421		580,476		563,010		493,047		478,005
Kansas banking		160,981		150,480		152,802		146,016		145,291
Total loans	$	1,781,884	$	1,779,429	$	1,548,094	$	1,449,430	$	1,438,245
NONPERFORMING LOANS BY TYPE
Construction & development	$	1,444	$	1,010	$	391	$	416	$	392
Commercial real estate		3,830		3,992		1,795		2,141		2,247
Commercial		13,461		13,491		11,727		5,114		5,447
One-to-four family residential		3,448		1,777		1,016		1,216		1,065
Consumer		84		88		148		-		-
Total nonperforming loans	$	22,267	$	20,358	$	15,077	$	8,887	$	9,151
NONPERFORMING LOANS BY SEGMENT
Oklahoma banking****	$	7,978	$	6,948	$	2,846	$	1,670	$	2,244
Texas banking		13,521		12,450		11,025		5,353		5,264
Kansas banking		768		960		1,206		1,864		1,643
Total nonperforming loans	$	22,267	$	20,358	$	15,077	$	8,887	$	9,151
OTHER REAL ESTATE BY TYPE
Construction & development	$	2,060	$	2,060	$	2,025	$	2,035	$	2,035
Commercial real estate		214		214		249		358		220
Total other real estate	$	2,274	$	2,274	$	2,274	$	2,393	$	2,255
OTHER REAL ESTATE BY SEGMENT
Oklahoma banking****	$	274	$	274	$	200	$	200	$	-
Texas banking		2,000		2,000		2,025		2,000		2,000
Kansas banking		-		-		49		193		255
Total other real estate	$	2,274	$	2,274	$	2,274	$	2,393	$	2,255
****Due to immateriality, Colorado banking is included within Oklahoma banking.
Continued

SOUTHWEST BANCORP, INC.
UNAUDITED QUARTERLY SUMMARY LOAN DATA
(Dollars in thousands) Table 5
Continued

	2016		2015
	Mar. 31		Dec. 31		Sep. 30		Jun. 30		Mar. 31
POTENTIAL PROBLEM LOANS BY TYPE
Construction & development	$	-	$	-	$	-	$	-	$	201
Commercial real estate		36,216		26,981		22,362		20,375		24,672
Commercial		29,931		9,879		7,366		14,519		14,016
One-to-four family residential		2,275		2,285		79		80		81
Consumer		38		10		-		-		-
Total potential problem loans	$	68,460	$	39,155	$	29,807	$	34,974	$	38,970
POTENTIAL PROBLEM LOANS BY SEGMENT
Oklahoma banking****	$	46,102	$	32,970	$	23,597	$	23,231	$	26,713
Texas banking		18,801		4,165		4,086		9,180		9,541
Kansas banking		3,557		2,020		2,124		2,563		2,716
Total potential problem loans	$	68,460	$	39,155	$	29,807	$	34,974	$	38,970
ALLOWANCE ACTIVITY
Balance, beginning of period	$	26,106	$	26,593	$	26,219	$	27,250	$	28,452
Charge offs		3,725		569		226		325		230
Recoveries		412		648		577		430		915
Net charge offs (recoveries)		3,313		(79)		(351)		(105)		(685)
Provision (credit) for loan losses		4,375		(566)		23		(1,136)		(1,887)
Balance, end of period	$	27,168	$	26,106	$	26,593	$	26,219	$	27,250
NET CHARGE OFFS BY TYPE
Construction & development	$	-	$	-	$	(16)	$	(15)	$	5
Commercial real estate		(187)		219		24		82		(118)
Commercial		3,408		(286)		(325)		(52)		(188)
One-to-four family residential		41		(48)		(68)		(91)		(331)
Consumer		51		36		34		(29)		(53)
Total net charge offs (recoveries) by type	$	3,313	$	(79)	$	(351)	$	(105)	$	(685)
NET CHARGE OFFS BY SEGMENT
Oklahoma banking****	$	458	$	288	$	(86)	$	25	$	(309)
Texas banking		952		(415)		(103)		(72)		(114)
Kansas banking		1,903		48		(162)		(58)		(262)
Total net charge offs (recoveries) by segment	$	3,313	$	(79)	$	(351)	$	(105)	$	(685)
****Due to immateriality, Colorado banking is included within Oklahoma banking.

SOUTHWEST BANCORP, INC.
UNAUDITED QUARTERLY SUMMARY FINANCIAL DATA
(Dollars in thousands, except per share) Table 6

	2016		2015
	Mar. 31		Dec. 31		Sep. 30		Jun. 30		Mar. 31
PER SHARE DATA
Basic earnings per common share	$	0.10	$	0.23	$	0.22	$	0.22	$	0.24
Diluted earnings per common share		0.10		0.23		0.22		0.22		0.24
Common dividends declared per share		0.08		0.06		0.06		0.06		0.06
Book value per common share		14.81		14.80		14.57		14.38		14.26
Tangible book value per share*		13.97		13.98		14.49		14.29		14.17
COMMON STOCK
Shares issued		21,225,034		21,138,028		19,901,336		19,900,855		19,900,350
Less treasury shares		1,939,989		1,131,226		868,617		867,310		867,310
Outstanding shares		19,285,045		20,006,802		19,032,719		19,033,545		19,033,040
OTHER FINANCIAL DATA
Investment securities	$	423,030	$	412,128	$	388,543	$	373,260	$	377,545
Loans held for sale		1,803		7,453		7,024		6,687		9,106
Portfolio loans		1,780,081		1,771,975		1,541,070		1,442,743		1,429,139
Total loans		1,781,884		1,779,428		1,548,094		1,449,430		1,438,245
Total assets		2,360,819		2,357,022		2,059,899		2,031,581		2,003,079
Total deposits		1,895,248		1,884,105		1,626,250		1,624,446		1,616,454
Other borrowings		117,763		110,927		96,801		75,839		58,578
Subordinated debentures		46,393		51,548		46,393		46,393		46,393
Total shareholders' equity		285,661		296,098		277,344		273,681		271,444
Mortgage servicing portfolio		434,340		432,318		422,845		415,961		407,903
INTANGIBLE ASSET DATA
Goodwill	$	13,467	$	13,467	$	1,214	$	1,214	$	1,214
Core deposit intangible		2,734		2,894		342		405		467
Mortgage servicing rights		3,411		3,721		3,631		3,518		3,399
Total intangible assets	$	19,612	$	20,082	$	5,187	$	5,137	$	5,080
Intangible amortization expense	$	341	$	330	$	243	$	243	$	168
DEPOSIT COMPOSITION
Non-interest bearing demand	$	552,499	$	596,494	$	526,159	$	515,156	$	506,952
Interest-bearing demand		168,210		151,015		114,877		131,547		140,659
Money market accounts		540,323		534,357		502,028		496,178		488,569
Savings accounts		56,235		56,333		36,163		35,647		34,413
Time deposits of $100,000 or more		348,783		311,538		238,318		233,105		227,426
Other time deposits		229,198		234,368		208,705		212,813		218,435
Total deposits**	$	1,895,248	$	1,884,105	$	1,626,250	$	1,624,446	$	1,616,454
OFFICES AND EMPLOYEES
FTE Employees		411		412		358		361		360
Branches		32		32		23		23		22
Assets per employee	$	5,744	$	5,721	$	5,754	$	5,628	$	5,564
____________________
*This is a Non-GAAP based financial measure.
**Calculation of Non-brokered Deposits and Core Funding (Non-GAAP Financial Measures)
Total deposits	$	1,895,248	$	1,884,105	$	1,626,250	$	1,624,446	$	1,616,454
Less:
Brokered time deposits		55,901		39,797		10,086		7,683		7,694
Other brokered deposits		140,372		135,880		133,025		103,025		83,025
Non-brokered deposits	$	1,698,975	$	1,708,428	$	1,483,139	$	1,513,738	$	1,525,735
Plus:
Sweep repurchase agreements		42,763		37,273		50,801		50,839		33,578
Core funding	$	1,741,738	$	1,745,701	$	1,533,940	$	1,564,577	$	1,559,313
Balance sheet amounts are as of period end unless otherwise noted.

SOUTHWEST BANCORP, INC.
UNAUDITED QUARTERLY SUPPLEMENTAL ANALYTICAL DATA
(Dollars in thousands) Table 7

	2016		2015
	Mar. 31		Dec. 31		Sep. 30		Jun. 30		Mar. 31
PERFORMANCE RATIOS
Return on average assets (annualized)		0.32%		0.78%		0.81%		0.85%		0.92%
Return on average common equity (annualized)		2.56		6.14		5.94		6.11		6.78
Return on average tangible common equity
(annualized)*		2.71		6.46		5.97		6.14		6.82
Net interest margin (annualized)		3.54		3.48		3.34		3.31		3.25
Total dividends declared to net income		84.66		26.22		27.53		27.45		25.19
Effective tax rate		35.19		35.96		35.84		34.51		37.49
Efficiency ratio		68.41		71.49		68.25		72.43		70.47
NONPERFORMING ASSETS
Nonaccrual loans	$	22,161	$	19,858	$	15,076	$	8,887	$	9,151
90 days past due and accruing		106		500		1		-		-
Total nonperforming loans		22,267		20,358		15,077		8,887		9,151
Other real estate		2,274		2,274		2,274		2,393		2,255
Total nonperforming assets	$	24,541	$	22,632	$	17,351	$	11,280	$	11,406
Potential problem loans	$	68,460	$	39,155	$	29,807	$	34,974	$	38,970
ASSET QUALITY RATIOS
Nonperforming assets to portfolio loans and
other real estate		1.38%		1.28%		1.12%		0.78%		0.80%
Nonperforming loans to portfolio loans		1.25		1.15		0.98		0.62		0.64
Allowance for loan losses to portfolio loans		1.53		1.47		1.73		1.82		1.91
Allowance for loan losses to
nonperforming loans		122.01		128.23		176.38		295.03		297.78
Net loan charge-offs to average portfolio
loans (annualized)		0.75		(0.02)		(0.09)		(0.03)		(0.20)
CAPITAL RATIOS
Average total shareholders' equity to
average assets		12.42%		12.77%		13.59%		13.87%		13.59%
Leverage ratio		13.45		14.41		15.84		16.12		15.75
Common equity tier 1 capital		12.13		13.21		14.57		15.30		15.51
Tier 1 capital to risk-weighted assets		14.14		15.53		16.95		17.84		18.10
Total capital to risk-weighted assets		15.39		16.79		18.21		19.09		19.36
Tangible common equity to tangible assets***		11.49		11.95		13.40		13.40		13.48
REGULATORY CAPITAL DATA
Common equity tier 1 capital	$	270,564	$	282,737	$	275,350	$	272,048	$	269,007
Tier I capital		315,326		332,468		320,350		317,048		314,007
Total capital		343,287		359,300		344,095		339,412		335,734
Total risk adjusted assets		2,230,326		2,140,344		1,889,892		1,777,618		1,734,401
Average total assets		2,344,259		2,307,421		2,022,972		1,966,577		1,993,446
____________________
*This is a Non-GAAP based financial measure.
***Calculation of Tangible Common Equity to Tangible Assets (Non-GAAP Financial Measure)
Total shareholders' equity	$	285,661	$	296,098	$	277,344	$	273,681	$	271,444
Less goodwill and core deposit intangible		16,201		16,361		1,556		1,619		1,681
Tangible common equity	$	269,460	$	279,737	$	275,788	$	272,062	$	269,763
Total assets	$	2,360,819	$	2,357,022	$	2,059,899	$	2,031,581	$	2,003,079
Less goodwill and core deposit intangible		16,201		16,361		1,556		1,619		1,681
Tangible assets	$	2,344,618	$	2,340,661	$	2,058,343	$	2,029,962	$	2,001,398
Total shareholders' equity to total assets		12.10%		12.56%		13.46%		13.47%		13.55%
Tangible common equity to tangible assets		11.49%		11.95%		13.40%		13.40%		13.48%
Balance sheet amounts and ratios are as of period end unless otherwise noted.

EX-99.2

2016 First Quarter Earnings Presentation April 20, 2016 NASDAQ: OKSB

Forward Looking Statements We make forward-looking statements in this presentation that are subject to risks and uncertainties. We intend these statements to be covered by the safe harbor provision for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. These forward-looking statements include: •Statements of Southwest's goals, intentions, and expectations; •Estimates of risks and of future costs and benefits; •Expectations regarding our future financial performance and the financial performance of our operating segments; •Expectations regarding regulatory actions; •Expectations regarding our ability to utilize tax loss benefits; •Expectations regarding our stock repurchase program; •Expectations regarding dividends; •Expectations regarding acquisitions and divestitures; •Assessments of loan quality, probable loan losses, and the amount and timing of loan payoffs; •Estimates of the value of assets held for sale or available for sale; and •Statements of our ability to achieve financial and other goals. These forward-looking statements are subject to significant uncertainties because they are based upon: the amount and timing of future changes in interest rates, market behavior, and other economic conditions; future laws, regulations, and accounting principles; changes in regulatory standards and examination policies, and a variety of other matters. These other matters include, among other things, the direct and indirect effects of economic conditions on interest rates, credit quality, loan demand, liquidity, and monetary and supervisory policies of banking regulators. Because of these uncertainties, the actual future results may be materially different from the results indicated by these forward-looking statements. In addition, Southwest's past growth and performance do not necessarily indicate our future results. For other factors, risks, and uncertainties that could cause actual results to differ materially from estimates and projections contained in forward-looking statements, please read the “Risk Factors” contained in Southwest’s reports to the Securities and Exchange Commission. We do not intend, or undertake no obligation, to update or revise any forward-looking statements contained in this presentation, whether as a result of differences in actual results, changes in assumptions, or changes in other factors affecting said statements, except as required by law.

First Quarter 2016 Highlights Net income was $1.9 million, or $0.10 per share, compared to $4.5 million, or $0.24 per share, in the first quarter of 2015. Total loans grew to $1.78 billion, a slight increase over year-end 2015 and a 24% increase compared to the first quarter of 2015. We funded $108.8 million in new loans during the first quarter of 2016 making this quarter our ninth consecutive quarter of loan growth. This good production was offset by anticipated pay-offs of certain real estate and healthcare credits. The quarterly net interest margin improved to 3.54% at March 31, 2016 compared to 3.48% at December 31, 2015. Pre-tax, pre-provision income was $7.3 million for the first quarter, an increase of 10% from $6.6 million in the fourth quarter of 2015 and an increase of 35% from $5.4 million in the first quarter of 2015.

First Quarter 2016 Highlights-cont. Our fourth quarter 2015 acquisition of FCB has been fully integrated, and projected expense savings have been mostly realized. Colorado team making positive inroads in that market. Our Board approved a cash dividend of $0.08 per share payable on May 13, 2016 to shareholders of record on April 29, 2016. On February 23, 2016, our Board of Directors authorized a third consecutive share repurchase program of up to another 5.0%, or approximately 967,000 shares, which became effective during the first quarter of 2016 upon the completion of the repurchase of all of the shares under the prior program. Our capital ratios all remain strong and well above the criteria for regulatory classification as “well-capitalized”.

Credit Quality Highlights First Quarter 2016 Potential problem loans increased by $29.3 million to $68.4 million, or 3.8% of total portfolio loans. This increase was driven by both the energy sector slowdown and general business credits not impacted by energy. We experienced a modest increase in nonperforming numbers of $1.9 million, which was limited by a resolution and settlement structure in a long standing problem credit. We reached a resolution on the AZ hospital loans and other real estate creating an opportunity for potential full repayment of the remaining $8.2 million in book balance plus a significant potential recovery. A provision for loan losses in the amount of $4.4 million was made, increasing our reserve position to 1.53% of portfolio loans. We incurred net charge-offs of $3.3 million centered in three loans.

Energy Highlights First Quarter 2016 Total direct energy exposure at 3/31/16 included $92.6 million in commitments and $57.0 million in funded debt, down from $96.8 million and $63.4 million at 12/31/15, respectively. Energy exposure represents 3.2% of our total funded credit portfolio. 80% oil and 20% gas. The portfolio is advanced 56% to reserve-based credits and 44% to services. Including the specific allocation, the ALLL for energy credits is 6.2%. Only ten reserve-based borrowers with commitments in excess of $1.0 million. One reserve-based credit of $5.4 million, included in criticized, is nonperforming with a $2.8 million allocated reserve. No participations purchased in our reserve-based portfolio.

Energy Highlights (continued) The services portfolio has $25 million funded with six credits having commitments in excess of $1 million. 78.6% of funded service portfolio is comprised of three credits, all of which are participations purchased from larger banks. SNC exam results received after quarter end downgraded one service-based credit to criticized but not to a PPL status. Including the SNC downgrade, we have eight credits totaling $22.0 million, or 38.7% of the energy portfolio, that are criticized. Portfolio has been stressed at various levels including $30 oil and $1.80 gas flat as worst case. Would reflect potential need of an additional approximately $4 to $5 million in reserves over time. Approved no new energy credits in the first quarter.

Financial Highlights  2013 FY 2014 FY 2015 FY 2015 FQ1 2015 FQ2 2015 FQ3 2015 FQ4 2016 FQ1 ($ in thousands except per share data) 12/31/13 12/31/14 12/31/15 3/31/15 6/30/15 9/30/15 12/31/15 3/31/16 Balance Sheet      Total Assets 1,981,423 1,942,034 2,357,022 2,003,079 2,031,581 2,059,899 2,357,022 2,360,819 Total Gross Loans 1,270,903 1,399,991 1,779,429 1,438,245 1,449,430 1,548,094 1,779,429 1,781,884 Total Deposits 1,584,086 1,533,999 1,884,105 1,616,454 1,624,446 1,626,250 1,884,105 1,895,248 Total Equity 259,187 270,786 296,098 271,444 273,681 277,344 296,098 285,661 Profitability (%)      Net Income ($000) 17,435 21,030 17,407 4,535 4,161 4,122 4,589 1,869 ROAA 0.86 1.09 0.84 0.92 0.85 0.81 0.78 0.32 ROAE 6.90 7.82 6.23 6.78 6.11 5.94 6.14 2.56 Net Interest Margin 3.19 3.45 3.35 3.25 3.31 3.34 3.48 3.54 Efficiency Ratio 73.30 72.02 70.67 70.47 72.43 68.25 71.49 68.41 Balance Sheet Ratios / Capital (%)      Loans/ Deposits 80.23 91.26 94.44 88.98 89.23 95.19 94.44 94.02 Tangible Common Equity/ Tang Assets(1)(3) 12.94 13.89 11.95 13.48 13.40 13.40 11.95 11.49 Common Equity Tier 1 Capital Ratio NA NA 13.21 15.51 15.30 14.57 13.21 12.13 Tier 1 Risk Based Capital Ratio 20.28 19.70 15.53 18.10 17.84 16.95 15.53 14.14 Total Risk Based Capital Ratio 21.59 20.96 16.79 19.36 19.09 18.21 16.79 15.39 Tier 1 Leverage Ratio 14.86 16.45 14.41 15.75 16.12 15.84 14.41 13.45 Asset Quality (%)(2)      NPLs/ Portfolio Loans 1.57 0.67 1.15 0.64 0.62 0.98 1.15 1.25 NCOs/ Avg Portfolio Loans 0.22 0.12 (0.08) (0.20) (0.03) (0.09) (0.02) 0.75 Reserves/Portfolio Loans 2.89 2.03 1.47 1.91 1.82 1.73 1.47 1.53 Reserves/ NPLs 184.50 302.26 128.23 297.78 295.03 176.38 128.23 122.01 Per Share Data      Tangible Book Value Per Share(1)(3) 12.97 14.02 13.98 14.17 14.29 14.49 13.98 13.97 Earnings Per Share 0.89 1.07 0.90 0.24 0.22 0.22 0.23 0.10 (1) Intangible assets defined as goodwill for purposes of these calculations. (2)NPLs defined as Non-Accrual loans + Loans 90+ Days Past Due, NPAs defined as NPLs + OREO. (3)This is a non-GAAP based financial measure. See Appendix for reconciliation to the most directly comparable GAAP based measure.

Earnings Results Earnings Summary Q1 '16 vs. Three Months Ended  Q4 '15 ($ in thousands, except per share) 3/31/16 12/31/15 3/31/15 % Change Net interest income  $ 19,840  $ 19,520  $ 15,610 1.6% Provision for loan losses 4,375 (566) (1,887) 873.0% Noninterest income 3,415 4,179 2,840 -18.3% Noninterest expense 15,996 17,099 13,082 -6.5% Income before taxes 2,884 7,166 7,255 -59.8% Taxes on income 1,015 2,577 2,720 -60.6% Net income 1,869 4,589 4,535 -59.3% Pre-tax, pre-provision income (1) 7,259 6,600 5,368 10.0% Diluted earnings per share  $ 0.10  $ 0.23  $ 0.24 (1)This is a non-GAAP based financial measure. See Appendix for reconciliation to the most directly comparable GAAP based measure.

Loan Portfolio Owner Occupied CRE $306.3 17% Non-Owner Occupied CRE $572.5 32% Residential Real Estate $182.3 10% Consumer $20.5 1% Construction & Development $156.5 9% Commercial & Industrial $543.8 31%  Dollars in millions unless otherwise noted.  Loans by Type Loans by Segment Owner Occupied CRE $242.9 17% Non-Owner Occupied CRE $516.8 36% Residential Real Estate $98.9 7% Consumer $21.3 2% Construction & Development $192.1 13% Commercial & Industrial $366.3 25% 3/31/2016 $1.78 billion 3/31/2015 $1.44 billion Kansas $161.0 9% Oklahoma $1,012.4 57% Colorado $48.1 3% Texas $560.4 31% Kansas $145.3 10% Oklahoma $814.9 57% Texas $478.0 33%

Nonperforming Loans Owner Occupied CRE $0.9 4% Non-Owner Occupied CRE $3.0 13% Residential Real Estate $3.4 16% Consumer $0.1 0% Construction & Development $1.4 7% Commercial & Industrial $1.6 7% Energy Commercial & Industrial $5.4 24% Healthcare Commercial & Industrial $6.5 29%  Dollars in millions unless otherwise noted. Nonperforming loans include non-accruals and 90 days past due loans.  By Type By Geographic Location Owner Occupied CRE $1.4 15% Non-Owner Occupied CRE $0.8 9% Residential Real Estate $1.1 12% Construction & Development $0.4 4% Commercial & Industrial $0.3 3% Healthcare Commercial & Industrial $5.2 57% 3/31/2016 $22.3 million 3/31/2015 $9.2 million Kansas $0.5 2% Oklahoma $5.6 25% Arizona $6.1 28% Texas $7.4 33% Other $2.7 12% Kansas $1.6 18% Oklahoma $2.2 25% Arizona $4.9 53% Texas $0.4 4%

Criticized Assets $19,872 $16,085 $16,478 $15,059 $9,413 $9,151 $8,887 $15,077 $20,358 $22,267 $99,750 $91,765 $84,175 $64,375 $34,037 $38,970 $34,974 $29,807 $39,155 $68,460 $93,231 $87,411 $62,759 $41,224 $41,979 $48,895 $41,876 $3,605 $9,229 $11,655 $2,654 $4,654 $4,285 $3,448 $3,097 $2,255 $2,393 $2,274 $2,274 $2,274 20133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16Nonperforming LoansPotential Problem LoansSpecial Mention LoansOther Real EstateDollars in thousands. Nonperforming loans include non-accruals and 90 days past due loans. PPL is defined as potential problem loans.

Loan Loss Reserve to NPL+PPL 30.65% 32.38% 32.87% 38.92% 65.48% 56.63% 59.78% 59.25% 43.90% 29.94% 20133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16Nonperforming loans include non-accruals and 90 days past due loans. PPL is defined as potential problem loans.

Credit Risk Profile Nonperforming assets defined as nonaccrual loans, loans past due 90 days or more and still accruing, and other real estate owned. 0.0%1.0%2.0%3.0%4.0%5.0% $- $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000 $160,000201120122013201420152016 Q1($000s)NPAsPotential Problem LoansNPAs/Assets

Strong Core Deposit Franchise $1.9 billion Total Deposits (3/31/16) Deposits by Type Cost of Deposits 0.40% 0.36% 0.34% 0.34% 0.32% 0.31% 0.32% 0.33% 0.37% 0.40% 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16Non-interest Bearing Demand$552 29%Interest Bearing Demand$168 9%Money market Accounts$540 29%Savings Accounts$56 3%Time Deposits $100,000 or More$349 18%Other Time Deposits$229 12%Dollars in millions.

NIM/Cost of Funds 0.40% 0.36% 0.34% 0.34% 0.32% 0.31% 0.32% 0.33% 0.37% 0.40% 3.42% 3.33% 3.50% 3.44% 3.52% 3.25% 3.31% 3.34% 3.48% 3.54% 0.0%0.5%1.0%1.5%2.0%2.5%3.0%3.5%4.0%4.5%5.0% $- $5,000 $10,000 $15,000 $20,000 $25,000Q4 '13Q1 '14Q2'14Q3 '14Q4 '14Q1 '15Q2 '15Q3 '15Q4 '15Q1 '16($000s) Net Interest IncomeCost of DepositsNet Interest Margin

Noninterest Income $3,068 $3,025 $8,246 $3,084 $4,576 $2,840 $3,409 $4,029 $4,179 $3,415 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16Service Charges and FeesGain on Sales of LoansGain on Investment SecuritiesOtherDollars in thousands.

Noninterest Expense $15,065 $14,107 $15,332 $13,358 $14,115 $13,082 $13,982 $14,077 $17,099 $15,996 12/31/133/3/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16Salaries and Employee BenefitsOccupancyGeneral and AdministrativeOtherDollars in thousands.

Strong Capital Position 21.6%21.6%21.0%19.4%19.1%18.2%16.8%15.4%0.0%5.0%10.0%15.0%20.0%25.0%12/31/1212/31/1312/31/143/31/156/30/159/30/1512/31/153/31/1620.3%20.3%19.7%18.1%17.8%17.0%15.5%14.1%0.0%5.0%10.0%15.0%20.0%25.0%12/31/1212/31/1312/31/143/31/156/30/159/30/1512/31/153/31/1615.2%17.2%16.9%15.5%15.3%14.6%13.2%12.1%0.0%5.0%10.0%15.0%20.0%25.0%12/31/1212/31/1312/31/143/31/156/30/159/30/1512/31/153/31/1615.0%14.9%16.5%15.8%16.1%15.8%14.4%13.5%0.0%5.0%10.0%15.0%20.0%25.0%12/31/1212/31/1312/31/143/31/156/30/159/30/1512/31/153/31/16Tier 1 Leverage Ratio Common Equity Tier 1 Note: 3/31/15 calculated consistent with Basel III; previous figures consistent with General Risk-based Rules. Tier 1 Risk-based Capital Ratio Total Risk-Based Capital Ratio 6.5% Well Capitalized 8.0% Well Capitalized 10.0% Well Capitalized 5.0% Well Capitalized

2016 Priorities Maintain strong credit quality along with conservative balance sheet and risk management. Continue appropriate growth in the commercial banking sector. Grow deposit base commensurate with loan growth. Focus on fee based income growth in mortgage, consumer and treasury. Assess, manage and add talent where available and appropriate throughout the organization. Drive growth in the healthcare banking segment. Deploy capital in a manner that grows the organization and enhances shareholder value. Manage expenses to drive operating efficiency improvements. Ensure that the repurchase and dividend programs are providing the best shareholder returns.

ADDITIONAL FINANCIAL INFORMATION

Quarterly Net Income  $6.8  $3.7  $6.2  $5.3 $5.9  $4.5  $4.2  $4.1  $4.6  $1.9 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16Dollars in millions.

Quarterly Pre-Tax, Pre-Provision Income  $4.6  $4.9 $5.1 (1)  $5.6  $5.9 (2)  $5.4  $5.2  $6.4  $6.6  $7.3 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16Dollars in millions. Excludes gain on sale of branches. (2) Excludes gain on sale of private equity security.

Quarterly Net Interest Margin 3.42% 3.33% 3.50% 3.44% 3.52% 3.25% 3.31% 3.34% 3.48% 3.54% 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16

Total Loans by Segment  $705.2  $777.4  $798.1  $800.2 $793.3  $814.9  $810.4  $832.3  $1,009.7  $1,012.4  $366.7  $372.0 $408.4  $424.6  $460.7  $478.0  $493.0  $563.0  $580.5  $560.4 $199.0  $170.7  $145.2  $142.5  $146.0  $145.3  $146.0  $152.8 $150.5  $161.0  $38.8  $48.1 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16OklahomaTexasKansasColoradoDollars in millions.

Potential Problem Loans by Segment  $29.0  $29.2  $23.9  $23.9  $25.0 $26.7  $23.2  $23.6  $30.2  $43.4  $65.1  $58.4  $57.0 $38.6  $6.3  $9.5  $9.2  $4.1  $4.2  $18.8  $5.7 $4.2  $3.2  $1.9  $2.8  $2.7  $2.6  $2.1  $2.0 $3.6  $2.8  $2.7 12/31/133/31/146/30/149/30/1412/31/143/3/156/30/159/30/1512/31/153/31/16OklahomaTexasKansasColoradoDollars in millions.

Provision for Loan Loss  $(6.50)  $(0.99)  $(0.36)  $(2.90)  $(2.39) $(1.89)  $(1.14)  $0.02  $(0.57)  $4.38 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16Dollars in millions.

Loan Loss Reserve to Total Portfolio Loans 2.89% 2.66% 2.46% 2.27% 2.03% 1.91% 1.82% 1.73% 1.47% 1.53% 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16

Loan Loss Reserve to Nonperforming Loans 184.50% 217.13% 200.77% 205.29% 302.26% 297.78% 295.03% 176.38% 128.23% 122.01% 12/31/133/31/146/30/149/30/1412/31/143/31/156/30/159/30/1512/31/153/31/16

APPENDIX

The subsequent tables present non-GAAP reconciliations of the following calculations:  –Tangible Common Equity (TCE) to Tangible Assets (TA) ratio –Tangible Book Value per Share –Pre-tax, Pre-provision Income

TCA to TA and Tangible Book Value Per Share Dollars in thousands, except per share amounts. 12/31/201312/31/201412/31/201512/31/20143/31/20156/30/20159/30/201512/31/20153/31/2016Total Equity$259,187 $270,786 $296,098 $270,786 $271,444 $273,681 $277,344 $296,098 $285,661 Less Goodwill & Core Deposits3,2721,74416,3611,7441,6811,6191,55616,36116,201TCE$255,915 $269,042 $279,737 $269,042 $269,763 $272,062 $275,788 $279,737 $269,460 Total Assets$1,981,423 $1,942,034 $2,357,022 $1,942,034 $2,003,079 $2,031,581 $2,059,899 $2,357,022 $2,360,819 Less Goodwill & Core Deposits3,2721,74416,3611,7441,6811,6191,55616,36116,201TA$1,978,151 $1,940,290 $2,340,661 $1,940,290 $2,001,398 $2,029,962 $2,058,343 $2,340,661 $2,344,618 Common Equity to Assets13.08%13.94%12.56%13.94%13.55%13.47%13.46%12.56%12.10%TCE to TA12.94%13.87%11.95%13.87%13.48%13.40%13.40%11.95%11.49%Shares outstanding19,732,92619,193,05920,006,80219,193,05919,033,04019,033,54519,032,71920,006,80219,285,045Book Value per Common Share$13.13 $14.11 $14.80 $14.11 $14.26 $14.38 $14.57 $14.80 $14.81 Tangible BV per Share$12.97 $14.02 $13.98 $14.02 $14.17 $14.29 $14.49 $13.98 $13.97 12/31/20133/31/20146/30/20149/30/201412/31/20143/31/20156/30/20159/30/201512/31/20153/31/2016Net Income6,832$ 3,691$ 6,152$ 5,288$ 5,899$ 4,535$ 4,161$ 4,122$ 4,589$ 1,869$ Taxes on Income4,310 2,214 3,691 3,172 3,540 2,720 2,193 2,303 2,577 1,015 Provision(6,502) (986) (355) (2,897) (2,386) (1,887) (1,136) 23 (566) 4,375 Pre-tax, Pre-provision Income4,640$ 4,919$ 9,488$ 5,563$ 7,053$ 5,368$ 5,218$ 6,448$ 6,600$ 7,259$ Gain on sale of bank branches4,378$ Gain on sale of private equity security1,120$ Adjusted Pre-tax, Pre-provision Income5,110$ 5,933$ Pre-tax, Pre-provision Income

2016 First Quarter Earnings Presentation April 20, 2016