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): July 21, 2015

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 July 21, 2015, Southwest Bancorp, Inc. (the “Company”) issued a press release reporting its results of operations and its financial condition for the quarter ended June 30, 2015.  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,  July 22, 2015, at 8:30 a.m. Central Time, the Company will host an investor conference call and webcast to review its second quarter 2015 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 July 22, 2015.The presentation materials are attached hereto as Exhibit 99.2.

Item 9.01 Financial Statements and Exhibits.

(d)Exhibits:

99.1:Press Release dated July 21, 2015

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.

July 21, 2015

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 July21, 2015	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 SecondQuarter 2015Results

and Announces Quarterly Dividend

July21, 2015, Stillwater, Oklahoma . . . . Southwest Bancorp, Inc. (NASDAQ Global Select Market - OKSB), (“Southwest”), today reported net income for the second quarter of 2015 of $4.2 million, or $0.22  per diluted share, compared to $6.2 million, or $0.31per diluted share, for the second quarter of 2014.Included in the second quarter of 2014 results was a pre-tax net gain of $4.4 million from the sale of three community bank branches. Net income for the six months ended June 30, 2015 totaled $8.7 million, or $0.46 per diluted share, compared to $9.8 million, or $0.50 per diluted share, for the six months ended June 30, 2014.  

Southwest also announcedthat its board of directors has approved a quarterly cash dividendof $0.06 per sharepayableAugust  14, 2015 to shareholders of record as of July31, 2015.

Mark Funke, President and CEO, stated, “The second quarter was a busy, successful quarter for Bank SNB.  We entered into an agreement to acquire First Commercial Bancshares, Inc.  This will allow us to grow our presence in the Oklahoma City metro area with five additional branches, increasing our total to ten. It also expands our geographic footprint to Colorado with three branches in Denver and one in Colorado Springs.

“The financial results for the second quarter reflect solid earnings and improved asset quality.  Loans grew in the second quarter, although somewhat reduced by early loan paydowns.  While there are still headwinds regarding the energy sector, we are pleased with our continued progress.  Our efforts produced several highlights:

· Entered intoan agreement to acquire Edmond-based First Commercial Bancshares, Inc.

· Loan growth was $11.2 million for the quarter, $49.4 million for the first six months of 2015, or 7% annualized.

· The quarterly net interest margin improved to 3.31%  at June 30, 2015 compared to 3.25% at March 31, 2015. 

· Asset quality improved as potential problem loans decreased $4.0 million, or 10%, during the second quarter. Also, nonperforming loans decreased $0.3 million, or3%, during the second quarter.  The improved asset quality,  combined with improved historical net charge-offs,resulted in a negative provision of $1.1 million for the quarter.

· Opened second banking branch in San Antonio, Texas.

“Our financial results and the improvement in asset quality for the second quarter reflect the good work of our banking associates. We will continue to focus our company on producing consistent, conservative, and sustainable earnings through the expansion of our revenue base while prudently managing our expenses.”

On May 27, 2015, Southwestentered into an Agreement and Plan of Reorganization with First Commercial Bancshares, Inc. (“Bancshares”), an Oklahoma corporation, and First Commercial Bank, an Oklahoma banking corporation and a wholly‑owned subsidiary of Bancshares, pursuant to which Bancshares will merge with and into Southwest (the “Merger”).The closing of the Merger is subject to customary closing conditions, including the receipt of regulatory approvals and approval of the shareholders of Bancshares.  The closing of the Merger is

expected to occur during the fourth quarter of 2015, although delays could occur.The Agreement also provides that, following the Merger and subject to regulatory approvals, Southwest will cause First Commercial Bank to be merged with and into Bank SNB.

On May 18, 2015,  Bank SNB, our banking subsidiary, opened its second location in San Antonio, Texas.The new San Antonio location provides needed space and a stronger profile for our growing business opportunities in this market.

Southwest’s share repurchase program, approved in August of 2014, authorized the repurchase of up to 5.0% or 990,000 shares of its outstanding common stock, par value $1.00 per share.As of June 30, 2015, Southwest had repurchased 867,310 shares for a total of $14.3 million.During the second quarter of 2015, no shares were repurchased due to trade restrictions pursuant to the pending acquisition of Bancshares.  On February 24, 2015, Southwest’s board of directors authorized a second share repurchase program of up to another 5.0%, or approximately 950,000 shares, effective upon the earlier of (i) the date we complete the repurchase of all of the shares Southwest is authorized to repurchase under the current program, and (ii) August 14, 2015.

Financial Overview

Condition:As of the end of the quarter ending June 30, 2015, total assets were $2.0 billion, an increase of $28.5 million from March 31, 2015.As of June 30, 2015, total loans were $1.4 billion and investment securities were $373.3 million, an increase of $11.2 million and a decrease of $4.3 million from the prior quarter end, respectively.Cash and cash equivalents at June 30, 2015  were $156.7 million,  up  $2.3 million from March 31, 2015. 

At June 30, 2015, the allowance for loan losses was $26.2 million,a decrease of $1.0 million when compared to March 31, 2015 and a decrease of  $6.9 million when compared to June 30, 2014.  The allowance for loan losses to portfolio loans was 1.82%as of June  30, 2015, compared to 1.91% as of March 31, 2015 and 2.46% as of June 30, 2014.  The allowance for loan losses to nonperforming loans was 295.03%  as of June30, 2015, compared to 297.78% as of March 31, 2015 and 200.77% as of June 30, 2014.

Nonperforming loans were  $8.9  million at June 30, 2015, adecrease of $0.3 million from March 31, 2015, and a decrease of  $7.6 million from June 30, 2014.  Other real estate atJune 30, 2015 was $2.4 million, anincrease of $0.1 million from March 31, 2015,  yeta decrease of $1.9million when compared toJune 30, 2014.  Nonperforming assets were $11.3 million, or 0.78% of portfolio loans and other real estate, as of June 30, 2015, compared to $11.4 million, or 0.80% of portfolio loans and other real estate, as of March 31, 2015, and $20.8 million, or 1.54% of portfolio loans and other real estate, as of June 30, 2014.  

Total core funding, which includes all non-brokered deposits and sweep repurchase agreements, comprised92%and 93% of total funding as of June 30, 2015 and March 31, 2015, respectively.  Wholesale funding, including Federal Home Loan Bank borrowings, federal funds purchased, and brokered deposits, accounted for 8%  and 7%  of total funding at June 30, 2015 and March  31, 2015, respectively.  See Table 7  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 June 30, 2015 exceeded the criteria for regulatory classification as “well-capitalized”.  Southwest’s total regulatory capital was $339.4 million, for a total risk-based capital ratio of 19.09%,Common Equity Tier 1 capital was $272.0 million, for a Common Equity Tier 1 ratio of 15.30%, and Tier 1 capital was $317.0million, for a Tier 1 risk-based capital ratio of  17.84%.  Bank SNB had total regulatory capital of $290.7  million, for a total risk-based capital ratio of 16.40% and Common Equity Tier 1 and Tier 1 capital of $268.4million, for a Common Equity Tier 1 and Tier 1 ratio of 15.14%.  Designation as a well-capitalized institution under regulations does not constitute a recommendation or endorsement by bank regulators.

SecondQuarter Results:

Summary:  For the secondquarter of 2015, net income was $4.2 million, compared to $4.5 million for the first quarter of 2015 and $6.2 million for the secondquarter of 2014. 

The $0.3 million decrease in net income compared to the first quarter of 2015was primarily due to a$0.9 million increase in noninterest expense anda $0.8 million lower negative provision for loan losses.  These decreases were offset in part by an increase of noninterest income of $0.6 million,a decrease in taxes of $0.5 million, and a $0.2 million increase in net interest income.

The $2.0  million decrease in our net income compared to the second quarter of 2014 was primarily the result of a $4.8 million decrease in noninterest income, which is primarily the $4.4 million pre-tax net gain on the sales of the community bank branches in the second quarter of 2014 anda $0.8 million decrease in net interest income. These decreases are offset in part by a$1.5 million decrease in taxes, a $1.3 million decrease in noninterest expense, and a $0.7 million increase in the negative provision for loan losses.

Net Interest Income:Net interest income totaled $15.8million forthe secondquarter of 2015, compared to $15.6 million for the first quarter of 2015, and to $16.6million for the second quarter of 2014.Net interest margin was 3.31% for the secondquarter of 2015, compared to 3.25% for the first quarter of 2015 and 3.50% (3.34% normalized) for the second quarter of 2014.Included in interest income for the second quarter of 2014 was $0.8 million due to accelerated discount accretion attributable to the sale of loans covered by a loss share agreement.The net effect of theseadditional incomes on the net interest margin was  a16basis point increase in thesecond quarter of 2014.  Loans (including loans held for sale) for the second quarter of 2015 increased $11.2 million, or 1%, when compared to March  31, 2015, and $97.7 million, or 7%, when compared to June 30, 2014.

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 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 negative provision (or credit)of $1.1 million for the secondquarter of 2015, compared to a negative provision of $1.9 million for the first quarter of 2015, and a  negative provision of $0.4 million for the second quarter of 2014.  During the secondquarter of 2015,  netrecoveries totaled $0.1 million,  or (0.03%) (annualized) of average portfolio loans, compared to net recoveries of $0.7 million, or (0.20%) (annualized) of average portfolio loans for the first quarter of 2015 and net charge-offsof $1.5 million, or 0.45% (annualized) of average portfolio loans for the second quarter of 2014.

Noninterest Income:  Noninterest income totaled $3.4  million for the secondquarter of 2015, compared to $2.8 million for the first quarter of 2015 and $8.2 million forthe second quarter of 2014.

The $0.6 million  increase from the first  quarter of 2015is primarily the result ofa$0.3 million increase in gain on sale of mortgage loans, a $0.1 gain on securities from residual payments related to the sale ofa  private equity investment during the fourth quarter of 2014,  and a $0.1 million increase in other noninterest income from bank owned life insurance, which is an  asset purchased during the second quarter of 2015 for $20.1 million, and reported in the statement of financial condition as “other assets”.

The $4.8 million decrease  from the second quarter of 2014 is primarily the result of a$4.4 million decrease in gain on sales of the community bank branches, which occurred in the second quarter of 2014,  a $0.5 million decrease in gain on sale of investment securities due to the gain on the sale of a stock investment that was acquired in a prior year repossession in 2014,and a $0.2 million decrease in service charges and fees, offset in part by a $0.2 million increase in gain on sale of mortgage loans.

Noninterest Expense:Noninterest expense totaled $14.0million for the secondquarter of 2015, compared to $13.1 million for the first quarter of 2015 and$15.3 million for the second quarter of 2014. 

The $0.9 million  increase in noninterest expense from first quarter of 2015 was primarily due to a  $0.5 million increase in general and administrative expense, which includes primarily legaland consulting fees related to the acquisitionand marketing expenses.The increase also includes$0.4 million increase in personnel expense, which is primarily due to raises and increased commission expense resulting from higher mortgage loan sales in the second quarter of 2015,and a $0.1 million increase in other real estate expense, offset in part by a $0.1 million decrease in occupancy expense.

The $1.3 million decrease in  noninterest expense from the second quarter of 2014 consisted of a $0.6 million decrease in general and administrative expense, which includes primarilylegal and marketing expenses, offset in part by a $0.1 million increase in the provision for unfunded loan commitments. The decrease also includesa  $0.4 million decrease in other real estate, a  $0.2 million decrease in personnel expense, a  0.1 million decrease in occupancy, and a $0.1 million decrease in data processing.

Income Tax:  Income tax expense totaled $2.2 million for the secondquarter of 2015, compared to  $2.7 million for the first quarter of 2015 and$3.7 million for the second quarter of 2014.  The income tax expense fluctuates in relation to pre-tax income levels.  The secondquarter of 2015 effective tax rate was 34.51%,  compared to 37.49% for the first quarter of 2015 and 37.5% for the second quarter of 2014. The decline in the effective tax rate includes the impact of an increase in tax exempt income, as a percentage of pre-tax income.

Year-to-date Results:

Summary:  Net income was $8.7 million for the six months ended June 30, 2015, compared to $9.8 million for the six months ended June 30, 2014.  The $1.1 million decrease in net income from 2014 is the result of a $5.1 million decrease in noninterest income, which is primarily the pre-tax net gain of $4.4 million on the sales of community bank branches in the second quarter of 2014, and a  $1.2 million decrease in net interest income,offset in part by a $1.7 million increase in the negative provision for loan losses from improved asset quality and a $2.3 million decrease in noninterest expense due to decreased general and administrative, personnel, and other real estate expenses.

Net Interest Income:Net interest income totaled $31.4 million for the first six months of 2015, compared to $32.6 million for the first six months of 2014, adecrease of $1.2 million.  Year-to-date net interest margin was 3.28%, compared to 3.42% (3.28% normalized) for 2014.  Included in interest income for the first six months of 2014 was $0.8 million due to accelerated discount accretion attributable to the sale of loans covered by a loss share agreement and $0.6 million due to the interest recognition resulting from loans returning to accrual status.  The net effect of these adjustments on the net interest margin was a 14 basis point increase for the first six months of 2014.  With the rate environment remaining low, earning assets are repricing at lower rates.

Provision (Credit) for Loan Losses and Net Charge-offs:  The provision for loan losses is the amount of expense that is required to maintain the allowance for 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 credit (or negative) of $3.0 million for the first six months of 2015, compared to a negative provision of $1.3 million for the first six months of 2014. Net recoveries totaled $0.8 million, or (0.11%)  (annualized) of average portfolio loans year-to-date as of June 30, 2015, compared to net charge-offs of $2.2 million, or 0.35% (annualized) of average portfolio loans for the same period in 2014.

Noninterest Income:  Noninterest income totaled $6.2 million for the first six months of 2015, compared to $11.3 million for the first six months of 2014.  The decrease consists of the $4.4 million recognized as the pre-tax net gain on the sales of the community bank branches in the second quarter of 2014,  a $0.6 million decrease in the gain on sale of investment securities due to the gain on the sale of a stock investment that was acquired in a prior year repossession in 2014, and a $0.3 million decrease in service charges and fees, offset in part by the  $0.3 million increase in gains on sales of mortgage loans.

Noninterest Expense:Noninterest expense totaled $27.1million for the first six months of 2015, compared to $29.4 million for the first six months of 2014.  The decrease consists of a $1.2 million decrease in other general and administrative expenses, which includes primarily legal, marketing, consulting, and supplies, and a $0.2 million decrease in theprovision for unfunded loan commitments. The decrease also includes a  $0.4 million decrease in other real estate expense, a $0.4 million decrease in employee benefit expenses, a $0.2 million decrease in data processing, and a $0.1 million decrease in FDIC and other insurance expense.

Income Tax:  Income tax expense totaled $4.9 million for the first six months of 2015, compared to $5.9 million for the first six months of 2014.  The income tax expense fluctuates in relation to pre-tax income levels.  The year-to-date effective tax rate was 36.1% as of June 30, 2015, compared to 37.5% as of June 30, 2014.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, July 22, 2015 at 9:30 a.m. Eastern Time (8:30 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/10068468.  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/oksb150722.html.  An audio replay will be available one hour after the call at 877-344-7529 (toll-free) or 412-317-0088 (international),  conference number 10068468.  Telephone replay access will be available until 9:00 a.m. Eastern Time on August 22, 2015.

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, and Kansas.  Bank SNB was chartered in 1894 and Southwest was organized in 1981 as the holding company.  At June 30, 2015,  Southwest had total assets of approximately  $2.0 billion, deposits of $1.6 billion, and shareholders’ equity of $273.7 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 June 30, 2015, approximately $422.3 million, or 29%, 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. 

In connection with the proposed merger of First Commercial Bancshares, Inc. ("First Commercial") into Southwest Bancorp, Inc. ("OKSB"), on July 7, 2015 OKSB filed with the Securities and Exchange Commission a Registration Statement on Form S-4 (File no. 333-205521) to register the shares of OKSB's common stock to be issued to the shareholders of First Commercial. The registration statement includes a Prospectus of OKSB, a Proxy Statement of First Commercial, as well as other relevant documents concerning the proposed transaction, which will be sent to the shareholders of First Commercial seeking their approval of the proposed transaction.

We urge investors and shareholders to read the Registration Statement on Form S-4, the Proxy Statement and Prospectus included with the Registration Statement on Form S-4, and any other relevant documents filed with the SEC, as well as any amendments or supplements to those documents, because they will contain important information relating to the proposed transaction. A free copy of these materials may be obtained on the SEC's website at http://www.sec.gov. Alternatively, when available, these documents can be obtained free of charge from OKSB's website at www.oksb.com under the tab "Investors" and then under the tab "SEC Filings."

OKSB, certain of its directors and executive officers and other persons may be deemed to be participants in the solicitation of proxies from the shareholders of First Commercial in connection with the proposed transaction under the rules of the SEC. Information about these participants is set forth in the proxy statement for OKSB's 2015 annual meeting of shareholders, as filed with the SEC on a Schedule 14A on April 22, 2015. Additional information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, may be obtained by reading the definitive proxy statement and other relevant materials, when available, to be filed by OKSB with the SEC in  conjunction with the proposed transaction. Free copies of this document may be obtained as described in the preceding paragraph.

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, 2014.  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 June 30, 2015 through the date its financial statements are filed with the Securities and Exchange Commission.  The June30,  2015 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 Average Balances, Yields, and Rates-Year-to-date	Table 5
Unaudited Quarterly Summary Loan Data	Table 6
Unaudited Quarterly Summary Financial Data	Table 7
Unaudited Quarterly Supplemental Analytical Data	Table 8

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

	Second Quarter					First Quarter
QUARTERLY HIGHLIGHTS	2015			2014	% Change	2015		% Change
Operations
Net interest income	$	15,791	$	16,574	(5)%	$	15,610	1%
Provision (credit) for loan losses		(1,136)		(355)	220		(1,887)	(40)
Noninterest income		3,409		8,246	(59)		2,840	20
Noninterest expense		13,982		15,332	(9)		13,082	7
Income before taxes		6,354		9,843	(35)		7,255	(12)
Taxes on income		2,193		3,691	(41)		2,720	(19)
Net income		4,161		6,152	(32)		4,535	(8)
Diluted earnings per share		0.22		0.31	(29)		0.24	(8)
Balance Sheet
Total assets		2,031,581		1,885,158	8		2,003,079	1
Loans held for sale		6,687		6,803	(2)		9,106	(27)
Portfolio loans		1,442,743		1,344,897	7		1,429,139	1
Total deposits		1,624,446		1,463,855	11		1,616,454	0
Total shareholders' equity		273,681		271,351	1		271,444	1
Book value per common share		14.38		13.71	5		14.26	1
Key Ratios
Net interest margin		3.31%		3.50%			3.25%
Efficiency ratio		72.43		74.25			70.47
Total capital to risk-weighted assets		19.09		21.43			19.36
Nonperforming loans to portfolio loans		0.62		1.23			0.64
Shareholders' equity to total assets		13.47		14.39			13.55
Tangible common equity to tangible assets*		13.40		14.31			13.48
Return on average assets (annualized)		0.85		1.27			0.92
Return on average common equity (annualized)		6.11		9.19			6.78
Return on average tangible common equity (annualized)**		6.14		9.30			6.82
	Six Months
YEAR-TO-DATE  HIGHLIGHTS	2015		2014		% Change
Operations
Net interest income	$	31,401	$	32,575	(4)%
Provision (credit) for loan losses		(3,023)		(1,341)	125
Noninterest income		6,249		11,271	(45)
Noninterest expense		27,064		29,439	(8)
Income before taxes		13,609		15,748	(14)
Taxes on income		4,913		5,905	(17)
Net income		8,696		9,843	(12)
Net income available to common shareholders		8,696		9,843	(12)
Diluted earnings per share		0.46		0.50	(8)
Balance Sheet
Total assets		2,031,581		1,885,158	8
Loans held for sale		6,687		6,803	(2)
Portfolio loans		1,442,743		1,344,897	7
Total deposits		1,624,446		1,463,855	11
Total shareholders' equity		273,681		271,351	1
Book value per common share		14.38		13.71	5
Key Ratios
Net interest margin		3.28%		3.42%
Efficiency ratio		71.47		73.94
Total capital to risk-weighted assets		19.09		21.43
Nonperforming loans to portfolio loans		0.62		1.23
Shareholders' equity to total assets		13.47		14.39
Tangible common equity to tangible assets*		13.40		14.31
Return on average assets (annualized)		0.88		1.01
Return on average common equity (annualized)		6.44		7.47
Return on average tangible common equity (annualized)**		6.48		7.55

Balance sheet amounts and ratios are as of period end unless otherwise noted.
* This is a Non-GAAP financial measure.  Please see Table 8 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

	June 30,		December 31,		June 30,
	2015		2014		2014
Assets
Cash and due from banks	$	22,923	$	19,705	$	28,369
Interest-bearing deposits		133,765		121,231		86,785
Cash and cash equivalents		156,688		140,936		115,154
Securities held to maturity (fair values of $11,818, $12,880 and $11,286, respectively)		11,364		12,362		10,682
Securities available for sale (amortized cost of $360,609, $352,275 and $373,609, respectively)		361,896		353,231		375,191
Loans held for sale		6,687		1,485		6,803
Loans receivable (includes loss share of $0, $0 and $606, respectively)		1,442,743		1,398,506		1,344,897
Less: Allowance for loan losses		(26,219)		(28,452)		(33,083)
Net loans receivable		1,416,524		1,370,054		1,311,814
Accrued interest receivable		4,281		4,723		4,636
Non-hedge derivative asset		701		787		121
Premises and equipment, net		18,251		18,588		19,096
Other real estate		2,393		3,097		4,285
Goodwill		1,214		1,214		1,214
Other intangible assets, net		3,923		3,927		3,849
Other assets		47,659		31,630		32,313
Total assets	$	2,031,581	$	1,942,034	$	1,885,158
Liabilities
Deposits:
Noninterest-bearing demand	$	515,156	$	496,128	$	427,431
Interest-bearing demand		131,547		122,342		124,712
Money market accounts		496,178		461,679		430,296
Savings accounts		35,647		32,795		31,187
Time deposits of $100,000 or more		233,105		198,952		209,059
Other time deposits		212,813		222,103		241,170
Total deposits		1,624,446		1,533,999		1,463,855
Accrued interest payable		774		769		772
Non-hedge derivative liability		701		787		121
Other liabilities		9,747		9,920		11,906
Other borrowings		75,839		79,380		90,760
Subordinated debentures		46,393		46,393		46,393
Total liabilities		1,757,900		1,671,248		1,613,807
Shareholders' equity
Common stock - $1 par value; 40,000,000 shares authorized;
19,900,855 and 19,810,877 shares issued and 19,793,123 shares issued and outstanding, respectively		19,901		19,811		19,793
Additional paid-in capital		101,518		101,245		100,962
Retained earnings		166,837		160,427		150,789
Accumulated other comprehensive loss		(233)		(395)		(193)
Treasury stock, at cost, 867,310, 617,818 and 0 shares, respectively		(14,342)		(10,302)		-
Total shareholders' equity		273,681		270,786		271,351
Total liabilities and shareholders' equity	$	2,031,581	$	1,942,034	$	1,885,158

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

	For the three months ended						For the six months
	June 30,		March 31,		June 30,		ended June 30,
	2015		2015		2014		2015		2014
Interest income
Loans	$	15,839	$	15,570	$	16,343	$	31,409	$	32,118
Investment securities		1,328		1,349		1,628		2,677		3,278
Other interest-earning assets		288		305		314		593		689
Total interest income		17,455		17,224		18,285		34,679		36,085
Interest expense
Interest-bearing deposits		862		835		931		1,697		1,956
Other borrowings		241		227		223		468		448
Subordinated debentures		561		552		557		1,113		1,106
Total interest expense		1,664		1,614		1,711		3,278		3,510
Net interest income		15,791		15,610		16,574		31,401		32,575
Provision (credit) for loan losses		(1,136)		(1,887)		(355)		(3,023)		(1,341)
Net interest income after provision for loan losses		16,927		17,497		16,929		34,424		33,916
Noninterest income
Service charges and fees		2,450		2,428		2,608		4,878		5,204
Gain on sale of branches, net		-		-		4,378		-		4,378
Gain on sales of mortgage loans		621		348		463		969		687
Gain on sale/call of investment securities, net		138		5		629		143		764
Other noninterest income		200		59		168		259		238
Total noninterest income		3,409		2,840		8,246		6,249		11,271
Noninterest expense
Salaries and employee benefits		8,289		7,914		8,472		16,203		16,598
Occupancy		2,201		2,284		2,253		4,485		4,537
Data processing		410		446		530		856		1,015
FDIC and other insurance		316		312		314		628		711
Other real estate, net		112		21		511		133		579
General and administrative		2,654		2,105		3,252		4,759		5,999
Total noninterest expense		13,982		13,082		15,332		27,064		29,439
Income before taxes		6,354		7,255		9,843		13,609		15,748
Taxes on income		2,193		2,720		3,691		4,913		5,905
Net income	$	4,161	$	4,535	$	6,152	$	8,696	$	9,843
Basic earnings per common share	$	0.22	$	0.24	$	0.31	$	0.46	$	0.50
Diluted earnings per common share		0.22		0.24		0.31		0.46		0.50
Common dividends declared per share		0.06		0.06		0.04		0.12		0.08

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

	For the three months ended
	June 30, 2015			March 31, 2015			June 30, 2014
	Average		Average	Average		Average	Average		Average
	Balance		Yield/Rate	Balance		Yield/Rate	Balance		Yield/Rate
Assets
Loans	$	1,439,050	4.41%	$	1,419,137	4.45%	$	1,331,126	4.92%
Investment securities		369,677	1.44		367,877	1.49		384,395	1.70
Other interest-earning assets		103,943	1.11		158,940	0.78		183,378	0.69
Total interest-earning assets		1,912,670	3.66		1,945,954	3.59		1,898,899	3.86
Other assets		58,267			49,460			49,829
Total assets	$	1,970,937		$	1,995,414		$	1,948,728
Liabilities and Shareholders' Equity
Interest-bearing demand deposits	$	137,781	0.09%	$	138,895	0.10%	$	130,232	0.12%
Money market accounts		473,993	0.15		484,639	0.15		421,001	0.13
Savings accounts		34,702	0.10		33,350	0.10		43,124	0.10
Time deposits		448,175	0.57		434,409	0.57		493,805	0.60
Total interest-bearing deposits		1,094,651	0.32		1,091,293	0.31		1,088,162	0.34
Other borrowings		60,568	1.60		72,307	1.27		85,682	1.04
Subordinated debentures		46,393	4.84		46,393	4.76		46,393	4.80
Total interest-bearing liabilities		1,201,612	0.56		1,209,993	0.54		1,220,237	0.56
Noninterest-bearing demand deposits		485,984			503,275			449,364
Other liabilities		10,005			10,918			10,751
Shareholders' equity		273,336			271,228			268,376
Total liabilities and shareholders' equity	$	1,970,937		$	1,995,414		$	1,948,728
Net interest income and spread			3.10%			3.05%			3.30%
Net interest margin (1)			3.31%			3.25%			3.50%
Average interest-earning assets
to average interest-bearing liabilities		159.18%			160.82%			155.62%
(1) Net interest margin = annualized net interest income / average interest-earning assets

SOUTHWEST BANCORP, INC.Table 5
UNAUDITED AVERAGE BALANCES, YIELDS, AND RATES – YEAR-TO-DATE
(Dollars in thousands)

	For the six months ended June 30,
	2015			2014
	Average		Average	Average		Average
	Balance		Yield/Rate	Balance		Yield/Rate
Assets
Loans	$	1,429,148	4.43%	$	1,304,876	4.96%
Investment securities		368,782	1.46		386,506	1.71
Other interest-earning assets		131,290	0.91		231,584	0.60
Total interest-earning assets		1,929,220	3.62		1,922,966	3.78
Other assets		53,888			50,036
Total assets	$	1,983,108		$	1,973,002
Liabilities and Shareholders' Equity
Interest-bearing demand deposits	$	138,335	0.09%	$	132,483	0.12%
Money market accounts		479,287	0.15		428,839	0.13
Savings accounts		34,030	0.10		43,939	0.10
Time deposits		441,330	0.57		512,335	0.62
Total interest-bearing deposits		1,092,982	0.31		1,117,596	0.35
Other borrowings		66,405	1.42		83,258	1.09
Subordinated debentures		46,393	4.80		46,393	4.77
Total interest-bearing liabilities		1,205,780	0.55		1,247,247	0.57
Noninterest-bearing demand deposits		494,582			449,247
Other liabilities		10,458			10,621
Shareholders' equity		272,288			265,887
Total liabilities and shareholders' equity	$	1,983,108		$	1,973,002
Net interest income and spread			3.07%			3.21%
Net interest margin (1)			3.28%			3.42%
Average interest-earning assets
to average interest-bearing liabilities		160.00%			154.18%
(1) Net interest margin = annualized net interest income / average interest-earning assets

SOUTHWEST BANCORP, INC.
UNAUDITED QUARTERLY SUMMARY LOAN DATA
(Dollars in thousands) Table 6

	2015				2014
		Jun. 30	Mar. 31		Dec. 31		Sep. 30		Jun. 30		Mar. 31
LOAN COMPOSITION
Real estate mortgage:
Commercial	$	759,406	$	759,676	$	752,971	$	757,878	$	769,021	$	766,178
One-to-four family residential		85,338		86,343		77,531		78,985		79,542		84,619
Real estate construction:
Commercial		186,140		192,052		186,659		166,379		166,981		166,007
One-to-four family residential		13,107		12,586		10,464		11,030		8,359		6,629
Commercial		384,788		366,282		350,410		330,738		300,163		266,311
Installment and consumer:
Guaranteed student loans		-		-		37		127		4,282		4,318
Other		20,651		21,306		21,919		22,251		23,352		26,060
Total loans, including held for sale		1,449,430		1,438,245		1,399,991		1,367,388		1,351,700		1,320,122
Less allowance for loan losses		(26,219)		(27,250)		(28,452)		(30,917)		(33,083)		(34,925)
Total loans, net	$	1,423,211	$	1,410,995	$	1,371,539	$	1,336,471	$	1,318,617	$	1,285,197
LOANS BY SEGMENT
Oklahoma banking	$	810,367	$	814,949	$	793,268	$	800,201	$	798,067	$	777,384
Texas banking		493,047		478,005		460,680		424,640		408,385		372,018
Kansas banking		146,016		145,291		146,043		142,547		145,248		170,720
Total loans	$	1,449,430	$	1,438,245	$	1,399,991	$	1,367,388	$	1,351,700	$	1,320,122
NONPERFORMING LOANS BY TYPE
Construction & development	$	416	$	392	$	73	$	77	$	82	$	80
Commercial real estate		2,141		2,247		2,195		7,504		7,613		7,541
Commercial		5,114		5,447		6,044		6,149		7,484		7,992
One-to-four family residential		1,216		1,065		1,100		1,274		1,180		470
Consumer		-		-		1		55		119		2
Total nonperforming loans	$	8,887	$	9,151	$	9,413	$	15,059	$	16,478	$	16,085
NONPERFORMING LOANS BY SEGMENT
Oklahoma banking	$	1,670	$	2,244	$	1,867	$	6,410	$	7,149	$	7,056
Texas banking		5,353		5,264		5,699		5,777		5,636		5,793
Kansas banking		1,864		1,643		1,847		2,872		3,693		3,236
Total nonperforming loans	$	8,887	$	9,151	$	9,413	$	15,059	$	16,478	$	16,085
OTHER REAL ESTATE BY TYPE
Construction & development	$	2,035	$	2,035	$	2,035	$	2,130	$	2,130	$	2,130
Commercial real estate		358		220		1,062		1,318		2,155		2,524
Total other real estate	$	2,393	$	2,255	$	3,097	$	3,448	$	4,285	$	4,654
OTHER REAL ESTATE BY SEGMENT
Oklahoma banking	$	200	$	-	$	-	$	-	$	-	$	-
Texas banking		2,000		2,000		2,000		2,000		2,000		2,000
Kansas banking		193		255		1,097		1,448		2,285		2,654
Total other real estate	$	2,393	$	2,255	$	3,097	$	3,448	$	4,285	$	4,654
Continued

SOUTHWEST BANCORP, INC.
UNAUDITED QUARTERLY SUMMARY LOAN DATA
(Dollars in thousands) Table 6
Continued

			2015		2014
		Jun. 30	Mar. 31		Dec. 31		Sep. 30		Jun. 30		Mar. 31
POTENTIAL PROBLEM LOANS BY TYPE
Construction & development	$	-	$	201	$	2,004	$	19,307	$	18,842	$	22,220
Commercial real estate		20,375		24,672		26,108		40,623		60,559		64,257
Commercial		14,519		14,016		5,842		4,090		4,299		4,807
One-to-four family residential		80		81		83		355		475		481
Total potential problem loans	$	34,974	$	38,970	$	34,037	$	64,375	$	84,175	$	91,765
POTENTIAL PROBLEM LOANS BY SEGMENT
Oklahoma banking	$	23,231	$	26,713	$	24,950	$	23,895	$	23,887	$	29,208
Texas banking		9,180		9,541		6,283		38,586		57,044		58,361
Kansas banking		2,563		2,716		2,804		1,894		3,244		4,196
Total potential problem loans	$	34,974	$	38,970	$	34,037	$	64,375	$	84,175	$	91,765
ALLOWANCE ACTIVITY
Balance, beginning of period	$	27,250	$	28,452	$	30,917	$	33,083	$	34,925	$	36,663
Charge offs		325		230		377		1,156		1,991		3,392
Recoveries		430		915		298		1,887		504		2,640
Net charge offs (recoveries)		(105)		(685)		79		(731)		1,487		752
Provision (credit) for loan losses		(1,136)		(1,887)		(2,386)		(2,897)		(355)		(986)
Balance, end of period	$	26,219	$	27,250	$	28,452	$	30,917	$	33,083	$	34,925
NET CHARGE OFFS BY TYPE
Construction & development	$	(15)	$	5	$	-	$	-	$	-	$	655
Commercial real estate		82		(118)		(34)		(640)		583		(2,243)
Commercial		(52)		(188)		(45)		22		652		2,267
One-to-four family residential		(91)		(331)		84		11		(2)		(18)
Consumer		(29)		(53)		74		(124)		254		91
Total net charge offs (recoveries) by type	$	(105)	$	(685)	$	79	$	(731)	$	1,487	$	752
NET CHARGE OFFS BY SEGMENT
Oklahoma banking	$	25	$	(309)	$	248	$	67	$	763	$	229
Texas banking		(72)		(114)		(36)		(611)		244		(1,586)
Kansas banking		(58)		(262)		(133)		(187)		480		2,109
Total net charge offs (recoveries) by segment	$	(105)	$	(685)	$	79	$	(731)	$	1,487	$	752

SOUTHWEST BANCORP, INC.
UNAUDITED QUARTERLY SUMMARY FINANCIAL DATA
(Dollars in thousands, except per share) Table 7

			2015		2014
		Jun. 30	Mar. 31		Dec. 31		Sep. 30		Jun. 30		Mar. 31
PER SHARE DATA
Basic earnings per common share	$	0.22	$	0.24	$	0.30	$	0.27	$	0.31	$	0.19
Diluted earnings per common share		0.22		0.24		0.30		0.27		0.31		0.19
Common dividends declared per share		0.06		0.06		0.04		0.04		0.04		0.04
Book value per common share		14.38		14.26		14.11		13.90		13.71		13.37
Tangible book value per share*		14.29		14.17		14.02		13.80		13.61		13.21
COMMON STOCK
Shares issued		19,900,855		19,900,350		19,810,877		19,793,623		19,793,123		19,786,206
Less treasury shares		867,310		867,310		617,818		223,005		-		-
Outstanding shares		19,033,545		19,033,040		19,193,059		19,570,618		19,793,123		19,786,206
OTHER FINANCIAL DATA
Investment securities	$	373,260	$	377,545	$	365,593	$	370,607	$	385,873	$	386,987
Loans held for sale		6,687		9,106		1,485		4,368		6,803		5,741
Portfolio loans		1,442,743		1,429,139		1,398,506		1,363,020		1,344,897		1,314,381
Total loans		1,449,430		1,438,245		1,399,991		1,367,388		1,351,700		1,320,122
Total assets		2,031,581		2,003,079		1,942,034		1,900,948		1,885,158		2,012,053
Total deposits		1,624,446		1,616,454		1,533,999		1,494,946		1,463,855		1,605,906
Other borrowings		75,839		58,578		79,380		75,884		90,760		85,692
Subordinated debentures		46,393		46,393		46,393		46,393		46,393		46,393
Total shareholders' equity		273,681		271,444		270,786		271,966		271,351		264,586
Mortgage servicing portfolio		415,961		407,903		410,315		401,756		397,339		391,303
INTANGIBLE ASSET DATA
Goodwill	$	1,214	$	1,214	$	1,214	$	1,214	$	1,214	$	1,214
Core deposit intangible		405		467		530		597		667		1,925
Mortgage servicing rights		3,518		3,399		3,397		3,269		3,182		3,006
Total intangible assets	$	5,137	$	5,080	$	5,141	$	5,080	$	5,063	$	6,145
Intangible amortization expense	$	243	$	168	$	193	$	195	$	210	$	183
DEPOSIT COMPOSITION
Non-interest bearing demand	$	515,156	$	506,952	$	496,128	$	445,148	$	427,431	$	471,568
Interest-bearing demand		131,547		140,659		122,342		104,807		124,712		132,622
Money market accounts		496,178		488,569		461,679		477,614		430,296		440,875
Savings accounts		35,647		34,413		32,795		33,398		31,187		47,532
Time deposits of $100,000 or more		233,105		227,426		198,952		203,090		209,059		236,035
Other time deposits		212,813		218,435		222,103		230,889		241,170		277,274
Total deposits**	$	1,624,446	$	1,616,454	$	1,533,999	$	1,494,946	$	1,463,855	$	1,605,906
OFFICES AND EMPLOYEES
FTE Employees		361		360		359		351		364		397
Branches		23		22		21		21		21		24
Assets per employee	$	5,628	$	5,564	$	5,410	$	5,416	$	5,179	$	5,068
____________________
*This is a Non-GAAP based financial measure.
**Calculation of Non-brokered Deposits and Core Funding (Non-GAAP Financial Measures)
Total deposits	$	1,624,446	$	1,616,454	$	1,533,999	$	1,494,946	$	1,463,855	$	1,605,906
Less:
Brokered time deposits		7,683		7,694		3,373		2,952		1,348		1,347
Other brokered deposits		103,025		83,025		73,425		98,425		48,424		3,424
Non-brokered deposits	$	1,513,738	$	1,525,735	$	1,457,201	$	1,393,569	$	1,414,083	$	1,601,135
Plus:
Sweep repurchase agreements		50,839		33,578		54,380		50,884		65,760		60,692
Core funding	$	1,564,577	$	1,559,313	$	1,511,581	$	1,444,453	$	1,479,843	$	1,661,827
Balance sheet amounts are as of period end unless otherwise noted.

SOUTHWEST BANCORP, INC.
UNAUDITED QUARTERLY SUPPLEMENTAL ANALYTICAL DATA
(Dollars in thousands) Table 8

			2015		2014
		Jun. 30	Mar. 31		Dec. 31		Sep. 30		Jun. 30		Mar. 31
PERFORMANCE RATIOS
Return on average assets (annualized)		0.85%		0.92%		1.22%		1.12%		1.27%		0.75%
Return on average common equity (annualized)		6.11		6.78		8.62		7.69		9.19		5.68
Return on average tangible common equity
(annualized)*		6.14		6.82		8.67		7.74		9.30		5.75
Net interest margin (annualized)		3.31		3.25		3.52		3.44		3.50		3.33
Total dividends declared to net income		27.45		25.19		12.93		14.88		12.86		21.40
Effective tax rate		34.51		37.49		37.50		37.49		37.50		37.49
Efficiency ratio		72.43		70.47		68.90		71.39		74.25		73.61
NONPERFORMING ASSETS
Nonaccrual loans	$	8,887	$	9,151	$	9,276	$	15,059	$	16,478	$	16,085
90 days past due and accruing		-		-		137		-		-		-
Total nonperforming loans		8,887		9,151		9,413		15,059		16,478		16,085
Other real estate		2,393		2,255		3,097		3,448		4,285		4,654
Total nonperforming assets	$	11,280	$	11,406	$	12,510	$	18,507	$	20,763	$	20,739
Potential problem loans	$	34,974	$	38,970	$	34,037	$	64,375	$	84,175	$	91,765
ASSET QUALITY RATIOS
Nonperforming assets to portfolio loans and
other real estate		0.78%		0.80%		0.89%		1.36%		1.54%		1.57%
Nonperforming loans to portfolio loans		0.62		0.64		0.67		1.10		1.23		1.22
Allowance for loan losses to portfolio loans		1.82		1.91		2.03		2.27		2.46		2.66
Allowance for loan losses to
nonperforming loans		295.03		297.78		302.26		205.29		200.77		217.13
Net loan charge-offs to average portfolio
loans (annualized)		(0.03)		(0.20)		0.02		(0.21)		0.45		0.24
CAPITAL RATIOS
Average total shareholders' equity to
average assets		13.87%		13.59%		14.19%		14.61%		13.77%		13.18%
Leverage ratio		16.12		15.75		16.45		16.86		15.95		15.09
Common equity tier 1 capital		15.30		15.51		n/a		n/a		n/a		n/a
Tier 1 capital to risk-weighted assets		17.84		18.10		19.70		20.05		20.13		19.98
Total capital to risk-weighted assets		19.09		19.36		20.96		21.34		21.43		21.29
Tangible common equity to tangible assets***		13.40		13.48		13.87		14.23		14.31		13.01
REGULATORY CAPITAL DATA
Common equity tier 1 capital	$	272,048	$	269,007	$	n/a	$	n/a	$	n/a	$	n/a
Tier I capital		317,048		314,007		314,216		314,120		309,600		299,938
Total capital		339,412		335,734		334,348		334,456		329,586		319,516
Total risk adjusted assets		1,777,618		1,734,401		1,595,032		1,566,996		1,537,903		1,500,957
Average total assets		1,966,577		1,993,446		1,910,688		1,863,127		1,941,064		1,987,231
____________________
*This is a Non-GAAP based financial measure.
***Calculation of Tangible Common Equity to Tangible Assets (Non-GAAP Financial Measure)
Total shareholders' equity	$	273,681	$	271,444	$	270,786	$	271,966	$	271,351	$	264,586
Less goodwill and core deposit intangible		1,619		1,681		1,744		1,811		1,881		3,139
Tangible common equity	$	272,062	$	269,763	$	269,042	$	270,155	$	269,470	$	261,447
Total assets	$	2,031,581	$	2,003,079	$	1,942,034	$	1,900,948	$	1,885,158	$	2,012,053
Less goodwill and core deposit intangible		1,619		1,681		1,744		1,811		1,881		3,139
Tangible assets	$	2,029,962	$	2,001,398	$	1,940,290	$	1,899,137	$	1,883,277	$	2,008,914
Total shareholders' equity to total assets		13.47%		13.55%		13.94%		14.31%		14.39%		13.15%
Tangible common equity to tangible assets		13.40%		13.48%		13.87%		14.23%		14.31%		13.01%
Balance sheet amounts and ratios are as of period end unless otherwise noted.

EX-99.2

2015 Second Quarter Earnings Presentation July 22, 2015 NASDAQ: OKSB

Forward Looking Statements 2 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.

Investor Information 3 In connection with the proposed merger of First Commercial Bancshares, Inc. (“First Commercial”) into Southwest Bancorp, Inc. (“OKSB”), on July 7, 2015 OKSB filed with the Securities and Exchange Commission a Registration Statement on Form S-4 (File no. 333-205521) to register the shares of OKSB’s common stock to be issued to the shareholders of First Commercial. The registration statement includes a Prospectus of OKSB, a Proxy Statement of First Commercial, as well as other relevant documents concerning the proposed transaction, which will be sent to the shareholders of First Commercial seeking their approval of the proposed transaction.  We urge investors and shareholders to read the Registration Statement on Form S-4, the Proxy Statement and Prospectus included with the Registration Statement on Form S-4, and any other relevant documents filed with the SEC, as well as any amendments or supplements to those documents, because they will contain important information relating to the proposed transaction. A free copy of these materials may be obtained on the SEC’s website at http://www.sec.gov. Alternatively, when available, these documents can be obtained free of charge from OKSB’s website at www.oksb.com under the tab “Investors” and then under the tab “SEC Filings.”  OKSB, certain of its directors and executive officers and other persons may be deemed to be participants in the solicitation of proxies from the shareholders of First Commercial in connection with the proposed transaction under the rules of the SEC. Information about these participants is set forth in the proxy statement for OKSB’s 2015 annual meeting of shareholders, as filed with the SEC on a Schedule 14A on April 22, 2015. Additional information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, may be obtained by reading the definitive proxy statement and other relevant materials, when available, to be filed by OKSB with the SEC in conjunction with the proposed transaction. Free copies of this document may be obtained as described in the preceding paragraph.

Net income of $4.2 million, or $0.22 per diluted share –Pre-tax, pre-provision income of $5.2 million Announced a definitive agreement to acquire Edmond, Oklahoma based First Commercial Bank Loan portfolio continues to exhibit growth and improving stability –Loans increased $11.2 million during the quarter, $49.4 million for year-to-date, or 7% annualized –Net interest margin was 3.31% for the quarter –Booked $162.9 in new loan production in the quarter –Energy credit book remains less than 6% of total credit portfolio Credit portfolio continues to show consistent improvement –NPLs decreased by $0.3 million, or 3% –NPAs decreased by $0.1 million, or 1% –Potential Problem Loans decreased by $4.0 million, or 10%, –Negative provision for credit losses of $1.1 million –Loss reserve is at 1.82% of loans –Annualized NCOs for the quarter equal to -0.03% of average loans –Loan principal recoveries of $0.4 million, net recoveries were $0.1 million Second Quarter 2015 Highlights 4 Nonperforming assets defined as nonaccrual loans, loans past due 90 days or more and still accruing, and other real estate owned.

Second Quarter 2015 Highlights (cont.) Improvement in non-interest income, primarily from mortgage operations  Capital ratios remain strong and above minimum well-capitalized standards  Reduced run-rate of noninterest expenses by 8.8% from 2Q 2014  Opened new branch in San Antonio, Texas. Represents our second location in this market Efficiency ratio remains high – we continue to focus on this area Energy exposure slightly lower, but stable with some downgrades and some paydowns Our board declared a dividend of $0.06 per share payable August 14, 2015 to shareholders of record July 31, 2015  5

Financial Highlights 6 2012 FY 2013 FY 2014 FY 2014 FQ2 2014 FQ3 2014 FQ4 2015 FQ1 2015 FQ2 ($ in thousands except per share data) 12/31/12 12/31/13 12/31/14 6/30/14 9/30/14 12/31/14 3/31/15 6/30/15 Balance Sheet         Total Assets 2,122,255 1,981,423 1,942,034 1,885,158 1,900,948 1,942,034 2,003,079 2,031,581 Total Gross Loans 1,378,735 1,270,903 1,399,991 1,351,700 1,367,388 1,399,991 1,438,245 1,449,430 Total Deposits 1,709,578 1,584,086 1,533,999 1,463,855 1,494,946 1,533,999 1,616,454 1,624,446 Total Equity 246,056 259,187 270,786 271,351 271,966 270,786 271,444 273,681 Profitability (%)         Net Income ($000) 16,187 17,435 21,030 6,152 5,288 5,899 4,535 4,161 ROAA 0.72 0.86 1.09 1.27 1.12 1.22 0.92 0.85 ROAE 5.71 6.90 7.82 9.19 7.69 8.62 6.78 6.11 Net Interest Margin 3.64 3.19 3.45 3.50 3.44 3.52 3.25 3.31 Efficiency Ratio 61.39 73.30 72.02 74.25 71.39 68.90 70.47 72.43 Balance Sheet Ratios / Capital (%)         Loans/ Deposits 80.65 80.23 91.26 92.34 91.47 91.26 88.98 89.23 Tangible Common Equity/ Tang Assets(1)(3) 11.44 12.94 13.87 14.31 14.23 13.87 13.48 13.40 Common Equity Tier 1 Capital Ratio NA NA NA NA NA NA 15.51 15.30 Tier 1 Risk Based Capital Ratio 20.28 20.28 19.70 20.13 20.05 19.70 18.10 17.84 Total Risk Based Capital Ratio 21.56 21.59 20.96 21.43 21.34 20.96 19.36 19.09 Tier 1 Leverage Ratio 15.01 14.86 16.45 15.95 16.86 16.45 15.75 16.12 Asset Quality (%)(2)         NPLs/ Portfolio Loans 3.12 1.57 0.67 1.23 1.10 0.67 0.64 0.62 NCOs/ Avg Portfolio Loans 0.07 0.22 0.12 0.45 (0.21) 0.02 (0.20) (0.03) Reserves/Portfolio Loans 3.47 2.89 2.03 2.46 2.27 2.03 1.91 1.82 Reserves/ NPLs 111.26 184.50 302.26 200.77 205.29 302.26 297.78 295.03 Per Share Data         Tangible Book Value Per Share(1)(3) 12.41 12.97 14.02 13.61 13.80 14.02 14.17 14.29 Earnings Per Share 0.64 0.89 1.07 0.31 0.27 0.30 0.24 0.22 (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 7 Earnings Summary Q2 '15 vs. Three Months Ended  Q1 '15 ($ in thousands, except per share) 6/30/15 3/31/15 6/30/14 % Change Net interest income  $ 15,791  $ 15,610 16,574 (1.2)% Provision for loan losses (1,136) (1,887) (355) (12.1)% Noninterest income 3,409 2,840 8,246 6.4% Noninterest expense 13,982 13,082 15,332 6.9% Income before taxes 6,354 7,255 9,843 (12.4)% Taxes on income 2,193 2,720 3,691 (19.4)% Net income 4,161 4,535 6,152 (8.2)% Pre-tax, pre-provision income (1) 5,218 5,368 9,488(2) (2.8)% Diluted earnings per share  $ 0.22  $ 0.24  $ 0.31 (1)This is a non-GAAP based financial measure. See Appendix for reconciliation to the most directly comparable GAAP based measure. (2)Includes $4.4 million net gain on sale of bank branches.

Owner Occupied CRE $110.0 8% Healthcare Owner Occupied CRE $270.4 19% Non-Owner Occupied CRE $379.0 26% Residential Real Estate $97.3 7% Consumer $20.7 1% Construction & Development $153.2 11% Healthcare Construction & Development $34.0 2% Commercial & Industrial $282.5 19% Healthcare Commercial & Industrial $102.2 7% Loan Portfolio 8  Dollars in millions.  Loans by Type Loans by Segment Owner Occupied CRE $91.2 7% Healthcare Owner Occupied CRE $256.5 19% Non-Owner Occupied CRE $421.3 31% Residential Real Estate $87.2 7% Consumer $27.6 2% Construction & Development $135.8 10% Healthcare Construction & Development $32.0 2% Commercial & Industrial $201.3 15% Healthcare Commercial & Industrial $98.9 7% 6/30/2015 $1.45 billion 6/30/2014 $1.35 billion Kansas $146.0 10% Oklahoma $810.4 56% Texas $493.0 34% Kansas $145.2 11% Oklahoma $798.1 59% Texas $408.4 30%

Owner Occupied CRE $1.2 14% Non-Owner Occupied CRE $0.9 10% Residential Real Estate $1.2 14% Construction & Development $0.4 5% Commercial & Industrial $0.2 2% Healthcare Commercial & Industrial $4.9 55% Nonperforming Loans 9  Dollars in millions. Nonperforming loans include non-accruals and 90 days past due loans.  Loans by Type Loans by Segment Owner Occupied CRE $2.6 16% Non-Owner Occupied CRE $5.0 30% Residential Real Estate $1.2 7% Consumer $0.1 1% Construction & Development $0.1 0% Commercial & Industrial $1.8 11% Healthcare Commercial & Industrial $5.7 35% 6/30/2015 $8.9 million 6/30/2014 $16.5 million Kansas $1.9 21% Oklahoma $1.7 19% Texas $5.4 60% Kansas $3.7 23% Oklahoma $7.1 43% Texas $5.6 34%

Nonperforming Loans Loans by Geographical Location Dollars in millions. Nonperforming loans include non-accruals and 90 days past due loans. Arizona $4.8 54% Oklahoma $1.7 19% Texas $0.6 6% Kansas $1.9 21% 10 Arizona $5.4 32% Oklahoma $6.9 42% Texas $0.3 2% Kansas $3.1 19% Other $0.8 5% 6/30/2015 $8.9 million 6/30/2014 $16.5 million

Other Real Estate Owned 11 $14,958 $2,654 $4,654 $4,285 $3,448 $3,097 $2,255 $2,393 201220133/31/146/30/149/30/1412/31/143/31/156/30/15Dollars in thousands.

Nonperforming Loans 12  $41,989  $19,872  $16,085 $16,478  $15,059  $9,413  $9,151  $8,887 201220133/31/146/30/149/30/1412/31/143/31/156/30/15Nonperforming Loans defined as Non-Accrual loans + Loans 90+ Days Past Due. Dollars in thousands.

Nonperforming Assets 13  $41,989  $19,872 $16,085  $16,478  $15,059  $9,413  $9,151  $8,887 $14,958 $2,654 $4,654 $4,285 $3,448 $3,097 $2,255 $2,393 201220133/31/146/30/149/30/1412/31/143/31/156/30/15Total Nonperforming LoansOther Real EstateNonperforming Loans defined as Non-Accrual loans + Loans 90+ Days Past Due. Dollars in thousands.

Potential Problem Loans 14  $97,516  $99,750 $91,765  $84,175  $64,375  $34,037  $38,970  $34,974 201220133/31/146/30/149/30/1412/31/143/31/156/30/15Dollars in thousands.

Loan Loss Reserve to NPL+PPL 15 33.49% 30.65% 32.38% 32.87% 38.92% 65.48% 56.63% 59.78% 201220133/31/146/30/149/30/1412/31/143/31/156/30/15PPL is defined as potential problem loans Nonperforming Loans defined as Non-Accrual loans + Loans 90+ Days Past Due

Improved Risk Profile… 16 Nonperforming assets defined as nonaccrual loans, loans past due 90 days or more and still accruing, and other real estate owned. 0%1%2%3%4%5%6%$0$50,000$100,000$150,000$200,000$250,00020102011201220132014 Q12014 Q22014 Q32014 Q42015 Q12015 Q2($000s)NPAsPotential Problem LoansNPAs/Assets

Strong Core Deposit Franchise 17 $1.6 billion Total Deposits (6/30/15) Deposits by Type Cost of Deposits 0.47% 0.45% 0.40% 0.36% 0.34% 0.34% 0.32% 0.31% 0.32% 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/30/156/30/15Non-interest Bearing Demand$515 32%Interest Bearing Demand$132 8%Money market Accounts$496 31%Savings Accounts$36 2%Time Deposits $100,000 or More$233 14%Other Time Deposits$213 13%Dollars in millions.

Cost of Funds 18 0.47% 0.45% 0.40% 0.36% 0.34% 0.34% 0.32% 0.31% 0.32% 3.07% 3.11% 3.42% 3.33% 3.50% 3.44% 3.52% 3.25% 3.31% 0.0%0.5%1.0%1.5%2.0%2.5%3.0%3.5%4.0%4.5%5.0% $14,000 $14,500 $15,000 $15,500 $16,000 $16,500 $17,000Q2 '13Q3 '13Q4 '13Q1 '14Q2'14Q3 '14Q4 '14Q1 '15Q2 '15($000s) Net InterestCost of DepositsNet Interest Margin

Noninterest Income 19 $3,491 $3,547 $3,068 $3,025 $8,246 $3,084 $4,576 $2,840 $3,409 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15Service Charges and FeesGain on Sales of LoansGain on Investment SecuritiesOtherDollars in thousands.

$12,839 $13,019 $15,065 $14,107 $15,332 $13,358 $14,115 $13,082 $13,982 -$5,000$0$5,000$10,000$15,000$20,0006/30/139/30/1312/31/133/3/146/30/149/30/1412/31/143/31/156/30/15Total Noninterest ExpenseSalaries and Employee BenefitsOccupancyFDIC and Other InsuranceOther Real Estate, netGeneral and AdministrativeNoninterest Expense 20 Dollars in thousands.

Strong Regulatory Capital Position 21 20.3% 20.3% 19.7% 17.8% 0%5%10%15%20%25%2012201320146/30/201515.0% 14.9% 16.5% 16.1% 0%5%10%15%20%25%2012201320146/30/2015Tier 1 Leverage Ratio Tier 1 Risk-Based Capital Ratio Total Risk-Based Capital Ratio Tier 1 Common Ratio 15.2% 17.2% 16.9% 15.5% 0%5%10%15%20%25%2012201320143/31/2015* * * * *Well-capitalized minimum. 21.6% 21.6% 21.0% 19.1% 0%5%10%15%20%25%2012201320146/30/2015

2015 Priorities: Aggressively seek ways to efficiently and profitably deploy our excess capital, including strategic acquisitions, selective de-novo branching and product investments. Successfully close the pending acquisition and complete integration of First Commercial Bank. Identify and acquire talented individuals and teams that will enhance our presence and profitability in select business segments and markets. Continue to improve credit quality and balance sheet strength. Maintain high credit standards while accelerating loan growth focused in areas of expertise, i.e. real estate, healthcare, commercial and energy. Improve internal operating efficiency while providing superior customer service. This includes investment in core operating systems and people. Strengthen and invest in business lines that produce non-interest income and effectively scale them across our geographic footprint. Drive a culture that produces consistent, conservative, and sustainable revenue and earnings growth. 22

ADDITIONAL FINANCIAL INFORMATION 23

Quarterly Net Income 24  $4.4  $3.8  $6.8  $3.7 $6.2  $5.3  $5.9  $4.5  $4.2 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15Dollars in millions.

Quarterly Pre-Tax, Pre-Provision Income 25  $5.8 $5.8  $4.6  $4.9  $5.1 (1)  $5.6  $5.9 (2)  $5.4  $5.2 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15Dollars in millions. (1) Excludes gain on sale of branches. (2) Excludes gain on sale of private equity security.

Quarterly Net Interest Margin 26 3.07% 3.11% 3.42% 3.33% 3.50% 3.44% 3.52% 3.25% 3.31% 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15

Total Loans by Segment 27  $663.57  $685.39  $705.21  $777.38  $798.07  $800.20  $793.27  $814.95  $810.37  $444.33  $414.43  $366.70  $372.02  $408.39  $424.64  $460.68  $478.01  $493.05  $210.19  $206.80  $198.99  $170.72  $145.25  $142.55  $146.04  $145.29  $146.02 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15OklahomaTexasKansasDollars in millions.

Potential Problem Loans by Segment 28  $31.5  $31.3  $29.0  $29.2  $23.9  $23.9  $25.0  $26.7  $23.2  $58.7  $59.6  $65.1  $58.4  $57.0  $38.6  $6.3  $9.5  $9.2  $7.3  $6.3  $5.7  $4.2  $3.2  $1.9  $2.8  $2.7  $2.6 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/3/156/30/15OklahomaTexasKansasDollars in millions.

Provision for Loan Loss 29  $(0.88)  $(0.33)  $(6.50)  $(0.99)  $(0.36)  $(2.90)  $(2.39)  $(1.89)  $(1.14) 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15Dollars in millions.

Loan Loss Reserve to Total Portfolio Loans 30 3.08% 3.08% 2.89% 2.66% 2.46% 2.27% 2.03% 1.91% 1.82% 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15

Loan Loss Reserve to Nonperforming Loans 31 123.87% 122.65% 184.50% 217.13% 200.77% 205.29% 302.26% 297.78% 295.03% 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15

APPENDIX 32

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  33

TCA to TA and Tangible Book Value Per Share 34 Dollars in thousands, except per share amounts. Pre-tax, Pre-provision Income  2012 FY  2013 FY  2014 FY   2014 FQ2   2014 FQ3   2014 FQ4   2015 FQ1   2015 FQ2 12/31/12  12/31/13  12/31/14  6/30/14  9/30/14  12/31/14  3/31/15  6/30/15                Total Equity  $ 246,056   $ 259,187   $ 270,786   $ 271,351   $ 271,966   $ 270,786   $ 271,444   $ 273,681 Less Goodwill & Core Deposits  3,757   3,272   1,744   1,881   1,811   1,744   1,681   1,619 TCE  $ 242,299   $ 255,915   $ 269,042   $ 269,470   $ 270,155   $ 269,042   $ 269,763   $ 272,062 Total Assets  $ 2,122,255   $ 1,981,423   $ 1,942,034   $ 1,885,158   $ 1,900,948   $ 1,942,034   $ 2,003,079   $ 2,031,581 Less Goodwill & Core Deposits  3,757   3,272   1,744   1,881   1,811   1,744   1,681   1,619 TA  $ 2,118,498   $ 1,978,151   $ 1,940,290   $ 1,883,277   $ 1,899,137   $ 1,940,290   $ 2,001,398   $ 2,029,962 Common Equity to Assets 11.59%  13.08%  13.94%  14.39%  14.31%  13.94%  13.55%  13.47% TCE to TA 11.44%  12.94%  13.87%  14.31%  14.23%  13.87%  13.48%  13.40%            Shares outstanding  19,529,705   19,732,926   19,193,059   19,793,123   19,570,618   19,193,059   19,033,040   19,033,545 Book Value per Common Share $12.60  $13.13  $14.11  $13.71  $13.90  $14.11  $14.26  $14.38 Tangible BV per Share $12.41  $12.97  $14.02  $13.61  $13.80  $14.02  $14.17  $14.29 6/30/139/30/1312/31/133/31/146/30/149/30/1412/31/143/31/156/30/15Net Income4,414$ 3,800$ 6,832$ 3,691$ 6,152$ 5,288$ 5,899$ 4,535$ 4,161$ Taxes on Income2,248 2,330 4,310 2,214 3,691 3,172 3,540 2,720 2,193 Provision(876) (329) (6,502) (986) (355) (2,897) (2,386) (1,887) (1,136) Pre-tax, Pre-Provision Income5,786$ 5,801$ 4,640$ 4,919$ 9,488$ 5,563$ 7,053$ 5,368$ 5,218$ Gain on sale of bank branches4,378$ Gain on sale of private equity security1,120$ Adjusted Pre-tax, Pre-Provision Income5,110$ 5,933$

2015 Second Quarter Earnings Presentation July 22, 2015 NASDAQ: OKSB