Southwest Bancorp (OKSB) 8-K Results of Operations and Financial Condition

Exhibit 99

	For additional information:
		Rick Green
		President & CEO
		Kerby E. Crowell
		EVP & CFO
For Immediate Release		(405) 372-2230

Southwest Bancorp Results: Portfolio Loans Increase 21% Since Year End

     October 18, 2007, Stillwater, Oklahoma . . . . Southwest Bancorp, Inc. (Nasdaq Global Select Market—OKSB), (“Southwest”), today reported results for the third quarter 2007. Rick Green, President and Chief Executive Officer, stated, “Our portfolio loans grew $330.5 million, or 21%, since year end, mainly as a result of the continued successful execution of our Texas growth strategy.
“At September 30, 2007, our Texas locations in Dallas, San Antonio, Austin, and Houston, accounted for $650.5 million (34%) of total portfolio loans up $163.0 million (33%) since year end 2006. At quarter-end our Kansas banking operations accounted for $273.2 million (14%) of total portfolio loans and had grown $70.8 million (35%) since year end 2006. Together, our Texas and Kansas operations account for almost half of our portfolio loans.

     “While we continued to achieve our strategic growth goals in the quarter, our quarterly net income decreased, mainly as a result of the Federal Reserve’s actions to decrease interest rates, which lowered our loan yields, additions to our reserves for unadvanced loan commitments, which reflect our continued loan growth, and increased personnel expense, which reflects our expansion and ordinary increases. Net income for the third quarter of 2007 was $5.5 million, a 17% decrease from the $6.6 million reported for the third quarter of 2006. Diluted earnings per share for the quarter were $0.38 compared to $0.46 per share for the 2006 period, a decrease of 17%. Net income for the first nine months of 2007 was $16.9 million, a 14% decrease from the $19.5 million reported for the first nine months of 2006. Diluted earnings per share were $1.15 compared to $1.35 per share for the 2006 period, a decrease of 15%. Income for the first nine months includes a one time $2.5 million pre-tax write off of a cash receivable recorded in the first quarter and related year to date legal fees of approximately $720,000, related to the ATM cash operation. This was offset in part by a $1.9 million pre-tax gain on the sale of shares received in a debt restructuring.

     “Sub prime lending has never been a part of the Southwest business strategy, and our direct and indirect exposure to sub prime loans and sub prime lenders is minimal to none.”

Highlights

•	Portfolio loans:	$1.9 billion, a 21% increase from year end 2006
•	Total loans:	$2.0 billion, a 12% increase from year end 2006
•	Third quarter net income:	$5.5 million, a 17% decrease from third quarter 2006
•	Year to date net income:	$16.9 million, a 14% decrease from the first nine months of 2006

(Please see Financial Tables 1 through 7 for additional financial information.)

NASDAQ: OKSB

Southwest Bancorp Results: Portfolio Loans Increase 21% Since Year End

Results of Operations

     The $1.1 million, or 17% decrease in quarterly net income from third quarter 2006 was the result of a $2.3 million (16%) increase in noninterest expense and a $303,000 (8%) decrease in noninterest income offset in part by an $857,000 (29%) decrease in the provision for loan losses and a $595,000 (15%) decrease in income taxes. The decline in general interest rates in the quarter led to a slight decrease in net interest income in spite of significantly greater loan volume.

     The slight (less than 1%) decrease in net interest income for the quarter was primarily the result of decreased loan yields and higher rates on interest bearing deposits. The decrease in noninterest income was mainly the result of decreased service charges and lower gains on the sale of loans. The increase in noninterest expense consists of a $1.5 million increase in personnel expense, a $720,000 increase in the provision for unfunded loan commitments, a $177,000 increase in general and administrative expenses offset in part by a decrease of $134,000 in other real estate expense.

     The $2.7 million, or 14% decrease in net income for the nine months ending September 30, 2007 compared to the nine months ending September 30, 2006 was the result of a $174,000 (less than 1%) increase in net interest income, in spite of significant loan growth, a $2.9 million (32%) decrease in the provision for loan losses and a $1.1 million (9%) decrease in income taxes, offset by a $6.8 million (17%) increase in noninterest expense. This expense includes the $2.5 million write off noted above and the related legal fees, as well as a $2.9 million increase in personnel expense, and a $1.1 million increase in provision for unfunded loan commitments.

Financial Condition

     At September 30, 2007, total assets were $2.4 billion, a $216.2 million, or 10% increase from December 31, 2006. Portfolio loans at quarter-end were $1.9 billion, up 21% from year end, reflecting growth that more than offset the expected decreases in student loans. Shareholders’ equity at September 30, 2007 totaled $213.8 million, a $16.3 million, or 8%, increase from year end 2006. Core deposits increased by $214.9 million, or 19%, in the first three quarters.

     At September 30, 2007, the allowance for loan losses was $28.3 million, an increase of $1.0 million, or 4%, from the allowance for loan losses at December 31, 2006. This change is the result of growth in performing commercial and commercial real estate loans and an increase in potential problem loans offset in part by decreases in the allowance related to impaired loans and the general allowance. At September 30, 2007, the allowance for loan losses was 1.41% of total loans, a decrease of 11 basis points from year end 2006. Management believes the amount of the allowance is appropriate, given its systematic methodology for calculating the allowance. Changes in the amount of the allowance resulted from the application of that methodology, which is designed to estimate inherent losses on total loans in the portfolio, including those on nonperforming loans.

     At September 30, 2007, the reserve for unfunded loan commitments was $2.7 million, an increase of $761,000, or 39%, from December 31, 2006 due to an increase both in commitments and the reserve on commitments related to potential problem loans.

     Nonaccrual loans totaled $26.3 million at September 30, 2007 compared to $26.7 million at December 31, 2006. Total nonperforming loans of $29.1 million decreased slightly from year end 2006, and declined as a percentage of total loans. Nonperforming loans represented 1.45% of total loans compared to 1.64% at year end 2006. At September 30, 2007, $1.4 million, or 5% of loans classified as nonperforming were guaranteed by United States agencies or U.S. government sponsored entities.

     Performing loans considered potential problem loans, loans which are not included in the past due, nonaccrual, or restructured categories, but for which known information about possible credit problems cause management to be uncertain as to the ability of the borrowers to comply with the present loan repayment terms, amounted to approximately $70.4 million at September 30, 2007, compared to $69.6 at June 30, 2007 and $50.6 million at December 31, 2006.

     Other real estate at September 30, 2007, was $1.7 million, a reduction of $219,000, or 12% from December 31, 2006.

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NASDAQ: OKSB

Southwest Bancorp Results: Portfolio Loans Increase 21% Since Year End

Cash Receivable

     As previously disclosed, in December 2006, an armored transportation company failed to deliver to Stillwater National Bank and Trust (“Stillwater National”) cash due to it from certain ATMs owned by one of its subsidiaries, Cash Source, Inc. (“CSI”). CSI discovered other cash shortages arising from the same transportation company and removed all cash from the other CSI ATMs for which that company provided cash transportation.

     In the first quarter, Southwest recorded a complete write off of the $2.5 million receivable. The financial statements also reflect related legal expenses incurred by Southwest in 2007 of approximately $720,000. Southwest filed its proof of loss with the insurer on August 6, 2007.

Southwest Bancorp and Subsidiaries

     Southwest Bancorp is the financial holding company for Stillwater National, Bank of Kansas (“SNB Kansas”), SNB Bank of Wichita (“SNB Wichita”), Healthcare Strategic Support, Inc., and Business Consulting Group, Inc. Through its subsidiaries, Southwest offers commercial and consumer lending, deposit, and investment services, and specialized cash management, consulting, and other financial services from offices in Oklahoma City, Stillwater, Tulsa, and Chickasha, Oklahoma; Austin, Dallas, Houston and San Antonio, Texas; and Hutchinson, Kansas City, and Wichita, Kansas, and on the Internet, throughSNB DirectBanker^®.

     Southwest focuses on converting its strategic vision into long-term shareholder value. This vision includes long-term goals for increasing earnings and banking assets from operations in Texas, Oklahoma, and Kansas that specialize in serving medical, professional, business, and commercial real estate customers and from more traditional banking operations, such as community banking. Southwest’s strategic growth goals include growth from existing and additional offices in carefully selected markets in Texas and other states with concentrations of healthcare and health professionals, businesses, and their managers and owners, and commercial and commercial real estate borrowers, and careful expansion of community banking operations.

     Southwest’s banking philosophy is to provide a high level of customer service, a wide range of financial services, and products responsive to customer needs with a focus on serving healthcare and health professionals, businesses and their managers and owners, and commercial and commercial real estate borrowers. This philosophy has led to the development of a line of deposit, lending, and other financial products that respond to professional and commercial customer needs for speed, efficiency, and information, and which complement more traditional banking products. Southwest seeks to build close relationships with businesses, professionals and their principals, and to service their evolving banking needs throughout their business development and professional lives.

     Southwest has developed a highly automated lockbox, imaging, and information service for commercial customers called “SNB Digital Lockbox” and deposit products that automatically sweep excess funds from commercial demand deposit accounts and invest them in interest bearing funds. Other specialized financial services include integrated document imaging and cash management services designed to help our customers in the healthcare industry and other record-intensive enterprises operate more efficiently.

     Southwest’s two management consulting subsidiaries complement its banking services and help differentiate Southwest from competitors. Healthcare Strategic Support, Inc. provides management consulting services for physicians, hospitals, and healthcare groups. Business Consulting Group, Inc. provides marketing, strategic, logistics, and operations consulting for both small and large commercial enterprises.

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

Forward-Looking Statements

     This Press Release includes forward-looking statements, such as: statements of Southwest’s goals, intentions, and expectations; estimates of risks and of future costs and benefits; assessments of the amount and timing of problem loan payoffs and loan losses; off-balance sheet risk and market risk; 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: future interest rates, market behavior, and other economic conditions; future laws and regulations; and a variety of other matters. 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 its future results.

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NASDAQ: OKSB

Southwest Bancorp Results: Portfolio Loans Increase 21% Since Year End

Financial Tables

Financial Highlights	Table 1
Consolidated Statements of Financial Condition	Table 2
Consolidated Statements of Operations	Table 3
Average Balances, Yields, and Rates-Quarterly	Table 4
Average Balances, Yields, and Rates-Year-to-date	Table 5
Summary Financial Data by Quarter-2007 and 2006	Table 6
Supplemental Analytical Data by Quarter-2007 and 2006	Table 7

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

	Third Quarter									Second Quarter
QUARTERLY HIGHLIGHTS							%						%
	2007			2006			Change			2007			Change
Operations
Net interest income	$	23,676		$	23,696			0	%	$	22,583			5	%
Provision for loan losses		2,149			3,006			(29	)		2,107			2
Other income		3,656			3,959			(8	)		5,454			(33	)
Other expense		16,162			13,910			16			14,808			9
Income before taxes		9,021			10,739			(16	)		11,122			(19	)
Taxes on income		3,505			4,100			(15	)		4,281			(18	)
Net income		5,516			6,639			(17	)		6,841			(19	)
Diluted earnings per share		0.38			0.46			(17	)		0.47			(19	)
Balance Sheet
Total assets		2,386,852			2,157,738			11			2,196,005			9
Loans held for sale		78,417			257,689			(70	)		73,011			7
Portfolio loans		1,933,223			1,541,738			25			1,769,528			9
Total deposits		1,912,719			1,740,564			10			1,823,806			5
Total shareholders’ equity		213,838			191,231			12			208,185			3
Book value per share		14.92			13.44			11			14.53			3
Key Ratios
Net interest margin		4.23	%		4.47	%					4.35	%
Efficiency ratio (GAAP-based)		59.13			50.30						52.82
Allowance to total loans		1.41			1.56						1.52
Nonperforming loans to total loans		1.45			1.72						1.32
Shareholders’ equity to total assets		8.96			8.86						9.48
Return on average assets		0.95			1.20						1.28
Return on average equity		10.29			13.94						13.26

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

	September 30,			December 31,			September 30,
	2007			2006			2006
Assets
Cash and due from banks	$	30,604		$	46,618		$	41,024
Federal funds sold		—			11,000			—
Cash and cash equivalents		30,604			57,618			41,024
Investment securities:
Held to maturity. Fair value: $5,301 $1,621 $1,619		5,335			1,630			1,629
Available for sale. Amortized cost: $274,561 $258,742 $259,775		274,896			255,904			256,006
Federal Reserve and FHLB Stock, at cost		12,991			12,315			12,183
Loans held for sale		78,417			188,464			257,689
Loans receivable		1,933,223			1,602,726			1,541,738
Less: Allowance for loan losses		(28,314	)		(27,293	)		(28,064	)
Net loans receivable		1,904,909			1,575,433			1,513,674
Accrued interest receivable		22,561			24,269			21,377
Premises and equipment, net		24,064			21,818			22,307
Other real estate owned		1,654			1,873			1,878
Goodwill		6,742			1,213			1,098
Other intangible assets, net		4,335			3,069			3,069
Other assets		20,344			27,022			25,804
Total assets	$	2,386,852		$	2,170,628		$	2,157,738
Liabilities and shareholders’ equity
Deposits:
Noninterest-bearing demand	$	261,634		$	254,415		$	245,335
Interest-bearing demand		63,145			55,396			58,037
Money market accounts		505,192			371,912			358,812
Savings accounts		14,830			11,273			10,931
Time deposits of $100,000 or more		580,850			648,664			646,849
Other time deposits		487,068			423,951			420,600
Total deposits		1,912,719			1,765,611			1,740,564
Accrued interest payable		11,201			13,260			11,480
Income tax payable		2,078			1,136			552
Other liabilities		9,776			8,624			9,778
Other borrowings		190,847			138,094			157,740
Subordinated debentures		46,393			46,393			46,393
Total liabilities		2,173,014			1,973,118			1,966,507
Shareholders’ equity
Common stock — $1 par value; 20,000,000 shares authorized; 14,658,042 shares issued		14,658			14,658			14,658
Paid in capital		46,490			45,901			45,756
Retained earnings		158,279			146,197			140,918
Accumulated other comprehensive income (loss)		209			(1,738	)		(2,309	)
Treasury stock, at cost, 321,991 417,535 433,308 shares		(5,798	)		(7,508	)		(7,792	)
Total shareholders’ equity		213,838			197,510			191,231
Total liabilities and shareholders’ equity	$	2,386,852		$	2,170,628		$	2,157,738

SOUTHWEST BANCORP, INC. Table 3

UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS
(Dollars in thousands except per share)

	For the three months					For the nine months
	ended September 30,					ended September 30,
	2007			2006		2007			2006
Interest income
Loans	$	42,346		$	41,074	$	122,210		$	116,839
Investment securities		2,816			2,686		8,342			8,061
Other interest-earning assets		39			57		219			137
Total interest income		45,201			43,817		130,771			125,037
Interest expense
Interest-bearing deposits		18,824			16,848		53,940			45,985
Other borrowings		1,715			2,281		4,935			7,445
Subordinated debentures		986			992		2,923			2,808
Total interest expense		21,525			20,121		61,798			56,238
Net interest income		23,676			23,696		68,973			68,799
Provision for loan losses		2,149			3,006		6,117			8,998
Other income
Service charges and fees		2,548			2,872		7,089			8,655
Gain on sales of loans		548			616		2,556			2,561
Gain (loss) on investment securities		108			60		1,579			(274	)
Other noninterest income		452			411		1,226			1,490
Total other income		3,656			3,959		12,450			12,432
Other expense
Salaries and employee benefits		8,966			7,477		25,449			22,505
Occupancy		2,514			2,520		7,305			7,517
FDIC and other insurance		134			128		397			379
Other real estate, net		(12	)		122		(122	)		256
General and administrative		4,560			3,663		14,772			10,295
Total other expenses		16,162			13,910		47,801			40,952
Income before taxes		9,021			10,739		27,505			31,281
Taxes on income		3,505			4,100		10,648			11,737
Net income	$	5,516		$	6,639	$	16,857		$	19,544
Basic earnings per common share	$	0.38		$	0.47	$	1.18		$	1.38
Diluted earnings per common share		0.38			0.46		1.15			1.35
Cash dividends declared per share		0.0925			0.0825		0.2775			0.2475

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

	For the three months ended September 30,
	2007								2006
	Average					Average			Average					Average
	Balance			Interest		Yield/Rate			Balance			Interest		Yield/Rate
Assets
Loans	$	1,925,468		$	42,346		8.73	%	$	1,827,417		$	41,074		8.92	%
Investment securities		284,098			2,816		3.93			269,135			2,686		3.96
Other interest-earning assets		8,931			39		1.73			4,300			57		5.26
Total interest-earning assets		2,218,497			45,201		8.08			2,100,852			43,817		8.27
Other assets		73,076								92,155
Total assets	$	2,291,573							$	2,193,007
Liabilities and Shareholders’ Equity
Interest-bearing demand deposits	$	62,667		$	82		0.52	%	$	58,885		$	79		0.53	%
Money market accounts		489,514			5,589		4.53			370,564			4,066		4.35
Savings accounts		13,263			24		0.72			10,194			19		0.74
Time deposits		1,042,096			13,129		5.00			1,077,852			12,684		4.67
Total interest-bearing deposits		1,607,540			18,824		4.65			1,517,495			16,848		4.40
Other borrowings		155,468			1,715		4.38			186,043			2,281		4.86
Subordinated debentures		46,393			986		8.50			46,393			992		8.55
Total interest-bearing liabilities		1,809,401			21,525		4.72			1,749,931			20,121		4.56
Noninterest-bearing demand deposits		246,607								231,280
Other liabilities		22,904								22,841
Shareholders’ equity		212,661								188,955
Total liabilities and shareholders’ equity	$	2,291,573							$	2,193,007
Net interest income and spread				$	23,676		3.36	%				$	23,696		3.71	%
Net interest margin (1)							4.23	%							4.47	%
Average interest-earning assets to average interest-bearing liabilities		122.61	%							120.05	%

(1) Net interest margin = annualized net interest income / average interest-earning assets

SOUTHWEST BANCORP, INC.
UNAUDITED AVERAGE BALANCES, YIELDS, AND RATES
(Dollars in thousands) Table 5

	For the nine months ended September 30,
	2007								2006
	Average					Average			Average					Average
	Balance			Interest		Yield/Rate			Balance			Interest		Yield/Rate
Assets
Loans	$	1,856,068		$	122,210		8.80	%	$	1,820,764		$	116,839		8.58	%
Investment securities		277,660			8,342		4.02			270,531			8,061		3.98
Other interest-earning assets		7,845			219		3.73			3,765			137		4.87
Total interest-earning assets		2,141,573			130,771		8.16			2,095,060			125,037		7.98
Other assets		73,774								92,258
Total assets	$	2,215,347							$	2,187,318
Liabilities and Shareholders’ Equity
Interest-bearing demand deposits	$	62,367		$	261		0.56	%	$	57,439		$	220		0.51	%
Money market accounts		428,597			14,294		4.46			391,580			12,041		4.11
Savings accounts		11,795			65		0.74			9,356			30		0.43
Time deposits		1,055,156			39,320		4.98			1,039,490			33,694		4.33
Total interest-bearing deposits		1,557,915			53,940		4.63			1,497,865			45,985		4.10
Other borrowings		141,968			4,935		4.65			216,826			7,445		4.59
Subordinated debentures		46,393			2,923		8.40			46,393			2,808		8.07
Total interest-bearing liabilities		1,746,276			61,798		4.73			1,761,084			56,238		4.27
Noninterest-bearing demand deposits		240,688								224,372
Other liabilities		21,159								19,470
Shareholders’ equity		207,224								182,392
Total liabilities and shareholders’ equity	$	2,215,347							$	2,187,318
Net interest income and spread				$	68,973		3.43	%				$	68,799		3.71	%
Net interest margin (1)							4.31	%							4.39	%
Average interest-earning assets to average interest-bearing liabilities		122.64	%							118.96	%

(1) Net interest margin = annualized net interest income / average interest-earning assets

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

	2007									2006
	Sep. 30			Jun. 30			Mar. 31			Dec. 31		Sep. 30			Jun. 30			Mar. 31
OPERATIONS
Interest income:
Loans	$	42,346		$	39,578		$	40,286		$	42,034	$	41,074		$	39,047		$	36,718
Investment securities		2,816			2,847			2,679			2,661		2,686			2,705			2,670
Other interest-earning assets		39			115			65			28		57			60			20
Total interest income		45,201			42,540			43,030			44,723		43,817			41,812			39,408
Interest expense:
Interest bearing demand deposits		82			98			81			62		79			78			63
Money market accounts		5,589			4,743			3,962			3,979		4,066			4,227			3,748
Savings accounts		24			21			20			20		19			6			5
Time deposits of $100,000 or more		7,445			7,781			8,132			8,121		8,106			7,478			6,182
Other time deposits		5,684			5,250			5,028			4,935		4,578			3,943			3,407
Total interest-bearing deposits		18,824			17,893			17,223			17,117		16,848			15,732			13,405
Other borrowings		1,715			1,089			2,131			2,578		2,281			2,275			2,889
Subordinated debentures		986			975			962			989		992			944			872
Total interest expense		21,525			19,957			20,316			20,684		20,121			18,951			17,166
Net interest income		23,676			22,583			22,714			24,039		23,696			22,861			22,242
Provision for loan losses		2,149			2,107			1,861			2,567		3,006			3,316			2,676
Other income:
Service charges and fees		2,548			2,306			2,235			2,837		2,872			3,009			2,774
Gain on sales of loans		548			800			1,208			877		616			1,040			905
Gain (loss) on investment securities		108			1,919			(448	)		525		60			(71	)		(263	)
Other noninterest income		452			429			345			105		411			527			552
Total other income		3,656			5,454			3,340			4,344		3,959			4,505			3,968
Other expense:
Salaries and employee benefits		8,966			8,358			8,125			8,392		7,477			7,788			7,240
Occupancy		2,514			2,388			2,403			2,673		2,520			2,430			2,567
FDIC and other insurance		134			140			123			132		128			124			127
Other real estate, net		(12	)		(41	)		(69	)		30		122			26			108
Unfunded loan commitment reserve		675			151			(65	)		376		(45	)		75			(368	)
General and administrative		3,885			3,812			6,314			4,088		3,708			3,409			3,516
Total other expenses		16,162			14,808			16,831			15,691		13,910			13,852			13,190
Income before taxes		9,021			11,122			7,362			10,125		10,739			10,198			10,344
Taxes on income		3,505			4,281			2,862			3,672		4,100			3,572			4,065
Net income	$	5,516		$	6,841		$	4,500		$	6,453	$	6,639		$	6,626		$	6,279
PER SHARE DATA
Basic earnings per common share	$	0.38		$	0.48		$	0.32		$	0.45	$	0.47		$	0.46		$	0.45
Diluted earnings per common share		0.38			0.47			0.31			0.44		0.46			0.45			0.44
Cash dividends declared per share		0.0925			0.0925			0.0925			0.0825		0.0825			0.0825			0.0825
Book value per share		14.92			14.53			14.14			13.87		13.44			12.89			12.52
Tangible book value per share		14.45			14.44			14.05			13.78		13.37			12.88			12.51
Weighted average shares outstanding:
Basic		14,335,008			14,299,111			14,263,698			14,230,015		14,206,947			14,151,442			14,075,998
Diluted		14,612,732			14,644,863			14,642,913			14,562,343		14,533,573			14,470,954			14,406,911
OTHER FINANCIAL DATA
Investment securities	$	293,222		$	278,034		$	274,106		$	269,849	$	269,818		$	269,736		$	271,858
Loans held for sale		78,417			73,011			108,025			188,464		257,689			318,477			383,164
Portfolio loans		1,933,223			1,769,528			1,667,195			1,602,726		1,541,738			1,457,705			1,391,817
Total loans		2,011,640			1,842,539			1,775,220			1,791,190		1,799,427			1,776,182			1,774,981
Total assets		2,386,852			2,196,005			2,194,179			2,170,628		2,157,738			2,188,102			2,145,839
Total deposits		1,912,719			1,823,806			1,803,181			1,765,611		1,740,564			1,764,774			1,699,212
Other borrowings		190,847			95,561			123,212			138,094		157,740			170,904			203,616
Subordinated debentures		46,393			46,393			46,393			46,393		46,393			46,393			46,393
Total shareholders’ equity		213,838			208,185			201,777			197,510		191,231			182,700			176,945
Mortgage servicing portfolio		136,294			134,444			134,259			135,904		131,688			134,414			132,825
Continued

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

	2007									2006
	Sep. 30			Jun. 30			Mar. 31			Dec. 31			Sep. 30			Jun. 30			Mar. 31
PERFORMANCE RATIOS
Return on average assets		0.95	%		1.28	%		0.83	%		1.15	%		1.20	%		1.21	%		1.17	%
Return on average equity		10.29			13.26			9.04			13.06			13.94			14.59			14.48
Return on average tangible equity		10.88			13.70			9.23			14.00			14.64			14.98			14.61
Net interest margin		4.23			4.35			4.34			4.47			4.47			4.36			4.34
Dividends declared to net income		24.04			19.37			29.32			18.20			17.68			17.63			18.54
Effective tax rate		38.85			38.49			38.88			36.27			38.18			35.03			39.30
Efficiency ratio		59.13			52.82			64.60			55.28			50.30			50.62			50.32
ASSET QUALITY RATIOS
Nonperforming assets to total loans and other real estate owned		1.53	%		1.40	%		1.76	%		1.74	%		1.83	%		1.61	%		1.82	%
Nonperforming loans to total loans		1.45			1.32			1.66			1.64			1.72			1.49			1.43
Net loan charge-offs to average total loans		0.39			0.40			0.31			0.71			0.28			0.38			0.39
Allowance for loan losses to total loans		1.41			1.52			1.56			1.52			1.56			1.48			1.39
Allowance for loan losses to nonperforming loans		97.32			115.65			94.18			92.97			90.52			99.67			97.80
CAPITAL RATIOS
Average total shareholders’ equity to average assets		9.28	%		9.64	%		9.15	%		8.84	%		8.62	%		8.31	%		8.08	%
Leverage ratio		10.92			11.73			11.12			10.91			10.84			10.58			10.37
Tier 1 capital to risk-weighted assets		10.49			11.84			12.44			12.25			12.53			12.54			12.62
Total capital to risk-weighted assets		11.77			13.13			13.68			13.50			13.80			13.80			13.87
SEGMENT LOANS
Oklahoma banking	$	947,354		$	936,305		$	890,503		$	912,862		$	889,453		$	844,047		$	846,045
Texas banking		650,525			613,470			550,357			487,505			450,489			418,669			363,774
Kansas banking		273,174			219,698			226,335			202,359			201,796			194,989			182,051
Other States banking		62,170			55			—			—			—			—			—
Subtotal		1,933,223			1,769,528			1,667,195			1,602,726			1,541,738			1,457,705			1,391,870
Secondary market		78,417			73,011			108,025			188,464			257,689			318,477			383,164
Other operations		—			—			—			—			—			—			(53	)
Total loans	$	2,011,640		$	1,842,539		$	1,775,220		$	1,791,190		$	1,799,427		$	1,776,182		$	1,774,981
SEGMENT NET INCOME*
Oklahoma banking	$	4,266		$	5,602		$	4,284		$	4,102		$	3,988		$	3,629		$	3,685
Texas banking		1,828			1,789			1,851			1,415			1,406			1,400			1,639
Kansas banking		336			446			234			(47	)		73			218			135
Other States banking		(23	)		(192	)		—			—			—			—			—
Subtotal		6,407			7,645			6,369			5,470			5,467			5,247			5,459
Secondary market		34			196			753			1,279			1,355			1,739			1,694
Other operations		(925	)		(1,000	)		(2,622	)		(296	)		(183	)		(360	)		(874	)
Total net income	$	5,516		$	6,841		$	4,500		$	6,453		$	6,639		$	6,626		$	6,279
OFFICES AND EMPLOYEES
FTE Employees		484			457			443			429			430			409			390
ATM’s		43			38			39			125			302			296			297
Branches		17			15			15			15			15			13			13
Loan production offices		3			3			3			3			3			3			2
Assets per employee	$	4,932		$	4,805		$	4,953		$	5,060		$	5,018		$	5,350		$	5,502

Balance sheet amounts are as of period end unless otherwise noted.
*In 2007, Southwest revised its methodology for presenting segment net income to reflect capital pricing.
Segment net income for prior periods above has been adjusted to reflect this change.

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

	2007									2006
	Sep. 30			Jun. 30			Mar. 31			Dec. 31			Sep. 30			Jun. 30			Mar. 31
LOAN COMPOSITION
Real estate mortgage:
Commercial	$	608,409		$	564,813		$	582,440		$	609,271		$	615,495		$	579,966		$	573,842
One-to-four family residential		112,407			90,916			83,312			91,441			94,966			97,513			91,007
Real estate construction		659,214			617,993			517,199			453,750			383,751			366,247			302,698
Commercial		517,658			465,588			457,838			424,189			421,173			389,525			401,820
Installment and consumer:
Guaranteed student loans		73,810			68,117			101,905			181,458			252,664			312,888			378,372
Other		40,142			35,112			32,526			31,081			31,378			30,043			27,242
Total loans, including held for sale		2,011,640			1,842,539			1,775,220			1,791,190			1,799,427			1,776,182			1,774,981
Less allowance for loan losses		(28,314	)		(28,054	)		(27,728	)		(27,293	)		(28,064	)		(26,341	)		(24,760	)
Total loans, net	$	1,983,326		$	1,814,485		$	1,747,492		$	1,763,897		$	1,771,363		$	1,749,841		$	1,750,221
By statement of condition category:
Loans held for sale:
Student loans	$	73,810		$	68,117		$	101,905		$	181,458		$	252,664		$	312,888		$	378,372
One-to-four family residential		3,293			3,382			4,113			4,654			2,506			2,583			1,718
Other		1,314			1,512			2,007			2,352			2,519			3,006			3,074
Total loans held for sale		78,417			73,011			108,025			188,464			257,689			318,477			383,164
Portfolio loans		1,933,223			1,769,528			1,667,195			1,602,726			1,541,738			1,457,705			1,391,817
Total loans before allowance	$	2,011,640		$	1,842,539		$	1,775,220		$	1,791,190		$	1,799,427		$	1,776,182		$	1,774,981
DEPOSIT COMPOSITION
Non-interest bearing demand	$	261,634		$	248,285		$	251,777		$	254,415		$	245,335		$	235,649		$	229,979
Interest-bearing demand		63,145			63,758			63,741			55,396			58,037			62,114			58,188
Money market accounts		505,192			487,096			394,668			371,912			358,812			383,772			389,688
Savings accounts		14,830			11,017			11,196			11,273			10,931			8,895			9,233
Time deposits of $100,000 or more		580,850			571,584			646,668			648,664			646,849			678,660			637,574
Other time deposits		487,068			442,066			435,131			423,951			420,600			395,684			374,550
Total deposits	$	1,912,719		$	1,823,806		$	1,803,181		$	1,765,611		$	1,740,564		$	1,764,774		$	1,699,212
NONPERFORMING ASSETS
Nonaccrual loans	$	26,291		$	22,633		$	26,978		$	26,735		$	23,913		$	23,135		$	23,555
90 days past due and accruing		2,803			1,625			2,462			2,622			7,090			3,293			1,763
Total nonperforming loans		29,094			24,258			29,440			29,357			31,003			26,428			25,318
Other real estate owned		1,654			1,508			1,869			1,873			1,878			2,143			7,124
Total nonperforming assets	$	30,748		$	25,766		$	31,309		$	31,230		$	32,881		$	28,571		$	32,442
ALLOWANCE ACTIVITY
Balance, beginning of period	$	28,054		$	27,728		$	27,293		$	28,064		$	26,341		$	24,760		$	23,812
Charge offs		2,105			1,875			1,728			3,643			1,630			1,844			1,808
Recoveries		216			94			302			305			347			109			80
Net charge offs		1,889			1,781			1,426			3,338			1,283			1,735			1,728
Provision for loan losses		2,149			2,107			1,861			2,567			3,006			3,316			2,676
Balance, end of period	$	28,314		$	28,054		$	27,728		$	27,293		$	28,064		$	26,341		$	24,760
REGULATORY CAPITAL DATA
Tier I capital	$	248,961		$	251,460		$	244,862		$	241,399		$	237,421		$	231,721		$	225,595
Total capital		279,298			278,799			269,513			266,097			261,521			254,894			248,014
Total risk adjusted assets		2,373,927			2,123,862			1,967,001			1,968,119			1,894,750			1,847,635			1,788,001
COMMON STOCK
Issued		14,658,042			14,658,042			14,658,042			14,658,042			14,658,042			14,658,042			14,658,042
Less treasury shares		(321,991	)		(329,570	)		(385,632	)		(417,535	)		(433,308	)		(484,774	)		(524,867	)
Outstanding shares		14,336,051			14,328,472			14,272,410			14,240,507			14,224,734			14,173,268			14,133,175
INTANGIBLE ASSET DATA
Goodwill	$	6,742		$	1,213		$	1,213		$	1,213		$	1,098		$	194		$	194
Core deposit intangible		2,879			1,466			1,531			1,595			1,659			—			—
Mortgage servicing rights		1,431			1,428			1,413			1,436			1,385			1,351			1,343
Nonmortgage servicing rights		25			32			37			38			25			48			53
Total intangible assets	$	11,077		$	4,139		$	4,194		$	4,282		$	4,167		$	1,593		$	1,590
Intangible amortization expense	$	161		$	165		$	162		$	162		$	143		$	95		$	93

Balance sheet amounts are as of period end unless otherwise noted.