10-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the Fiscal Year Ended December 31, 2016

Commission File Number 001-34110

SOUTHWEST BANCORP, INC.

(Exact name of registrant as specified in its charter)

Oklahoma	73-1136584
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
608 South Main Street, Stillwater, Oklahoma	74074
(Address of principal executive office)	(Zip Code)

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

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Name of Each Exchange on which Registered
Common Stock, par value $1.00 per share	The NASDAQ Stock Market

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  [  ] YES  [X] NO

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  [  ] YES  [X] NO

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.   [X] YES   [  ] NO

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  [X] YES   [  ] NO

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.   [  ]

Indicate by a check mark if the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definition of “accelerated filer,” “large accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act (Check one):

Large Accelerated filer [  ]        Accelerated filer [X]    Non-accelerated filer [  ]Smaller reporting company [  ]

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).   [  ] YES   [X] NO

The registrant's Common Stock is traded on the NASDAQ Global Select Market under the symbol OKSB. The aggregate market value of approximately 17,544,194 shares of Common Stock of the registrant issued and outstanding held by nonaffiliates on June 30, 2016, the last day of the registrant’s most recently completed second fiscal quarter, was approximately $297.0 million based on the closing sales price of $16.93 per share of the registrant's Common Stock on that date. Solely for purposes of this calculation, it is assumed that directors, officers, and 5% stockholders of the registrant (other than institutional investors) are affiliates.

As of the close of business on March 9, 2017,  18,689,022 shares of  the registrant's Common Stock were outstanding.

Documents Incorporated by Reference

Portions of the definitive Proxy Statement relating to registrant’s Annual Meeting of Shareholders, to be held on April 25, 2017, are incorporated by reference into Part III of this Form 10-K to the extent described therein.

SOUTHWEST BANCORP, INC.

Annual Report on Form 10-K

Table of Contents

		Page
PART I
Item 1.	Business	3
Item 1A.	Risk Factors	13
Item 1B.	Unresolved Staff Comments	20
Item 2.	Properties	20
Item 3.	Legal Proceedings	22
Item 4.	Mine Safety Disclosures	23
PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	24
Item 6.	Selected Financial Data	26
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	29
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	49
Item 8.	Financial Statements and Supplementary Data	51
Item 9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosures	96
Item 9A.	Controls and Procedures	96
Item 9B.	Other Information	98
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	98
Item 11.	Executive Compensation	98
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	98
Item 13.	Certain Relationships and Related Transactions, and Director Independence	98
Item 14.	Principal Accounting Fees and Services	98
PART IV
Item 15.	Exhibits, Financial Statement Schedules	99
	Signatures	102

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Caution  about Forward-Looking Statements

Southwest Bancorp, Inc. (“we”, “our”, “us”, or “Southwest”) makes forward-looking statements in this Annual Report on Form 10-K 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 our 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 our planned merger with Simmons First National Corporation;

· Assessments of loan quality, probable loan losses or negative provisions, 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: our operating strategy; 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 and other uncertainties, our actual future results may be materially different from the results indicated by these forward-looking statements. In addition, our 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 this report and our future reports to the Securities and Exchange Commission (“SEC”).

These forward-looking statements speak only as of the date on which the statements were made. We do not intend, and undertake 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. 

We are required under generally accepted accounting principles to evaluate subsequent events and their impact, if any, on our financial statements as of December 31, 2016 through the date our financial statements are filed with the SEC. The December 31, 2016 financial statements included in this release will be adjusted if necessary to properly reflect the impact of subsequent events on estimates used to prepare those statements.

PART i

ITEM 1.  BUSINESS

Business

General

We are a financial holding company headquartered in Stillwater, Oklahoma for our banking subsidiary, Bank SNB, a state-chartered member bank.  We were organized in 1981 as the holding company for Bank SNB, which was chartered in 1894. We are registered as a financial holding company pursuant to the Bank Holding Company Act of 1956, as amended by the Financial Services Modernization Act or Gramm-Leach-Bliley Act (the "Holding Company Act"). As a financial holding company, we are subject to supervision and regulation by the Federal Reserve. Bank SNB’s deposit accounts are insured by the Federal Deposit Insurance Corporation (“FDIC”) to the maximum extent permitted by law.

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On December 14, 2016, we entered into a definitive agreement and plan of merger (the “Merger Agreement”) with Simmons First National Corporation (“Simmons”), an Arkansas corporation, pursuant to which, and subject to its terms and conditions, Simmons will acquire all of our outstanding capital stock for $95.0 million in cash and 7,250,000 shares of Simmons’s common stock (the “Merger”), representing an aggregate Merger consideration of approximately $564.4 million (based on Simmons’ common stock closing price as of December 13, 2016), subject to potential adjustments.

Simmons conducts banking operations through 150 financial centers located in communities throughout Arkansas, Kansas, Missouri and Tennessee. As of December 31, 2016, Simmons had $8.4 billion in total assets, $5.6 billion in loans and $6.7 billion in deposits.The completion of the Merger is subject to, among other things, regulatory and shareholder approval and other customary closing conditions.

Products and Services

We focus on providing customers with exceptional service and meeting all of their banking needs by offering a wide variety of commercial and retail financial services including commercial and consumer lending, deposit products and services, specialized cash management, and other financial products and services.  Our areas of expertise focus on the special financial needs of healthcare and health professionals, commercial real estate borrowers, businesses and their managers and owners, commercial lending, and energy banking. The healthcare and real estate industries make up the majority of our loan portfolio.

Our commercial lending services include (i) commercial real estate loans, (ii) working capital loans, (iii) construction loans, (iv) loans to small businesses, (v) loans for equipment and general business expansion, (vi) loans to energy companies based on proved producing reserves and (vii) loans to a broad variety of healthcare providers, business, and related concerns. Consumer lending services include (i) residential real estate loans and mortgage banking services, (ii) personal lines of credit, (iii) loans for the purchase of automobiles, and (iv) other installment loans. We also offer deposit and personal banking services, including (i) commercial deposit services, commercial checking, money market, and other deposit accounts, and (ii) retail deposit services such as certificates of deposit, money market accounts, checking accounts, negotiable order of withdrawal accounts, savings accounts, and automated teller machine access. Bank SNB offers personal brokerage services through a relationship with an independent institution.

We have developed internet banking services, called BankSNB DirectBanker®, for consumer and commercial customers, a highly automated lockbox, document imaging, and information service for commercial customers called “Bank SNB Digital Lockbox,” and deposit products that automatically sweep excess funds from commercial demand deposit accounts and invest them in interest bearing funds. 

Strategic Focus

Our bank has and will continue to position itself for future growth. We seek to produce consistent and sustainable revenue growth by enhancing, clarifying, and expanding our geographic markets and increasing and diversifying our revenue base. This consists of, but is not limited to: building out existing markets with robust and profitable growth potential; expanding our professional team; and identifying, targeting, and acquiring earning assets under appropriate risk guidelines. We are focused on consummating the Merger with Simmons and will be conducting our operations with the intent to satisfy all of the covenants and conditions to closing contained in the Merger Agreement.

We also seek to provide customers with exceptional service while, at the same time, improving operating efficiency. Over many years, we have refined our approach to customer service by listening to our customers’ needs and desires. We actively seek to make the customer experience consistent over time and across all of our locations. We improve operating efficiency by focusing on internal policy, process and procedure, along with technology, with the goal of continuous improvement while providing an exceptional experience to our clients. We build close relationships with businesses and their principals, business professionals and individuals by providing personalized financial solutions that give them more control over their financial futures. We also apply a philosophy of continuous improvement to internal and external information reporting to improve our decision making processes and product delivery.  

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Organization

Our business operations are conducted through four operating segments that include Oklahoma Banking, Texas Banking, Kansas Banking, andan Other Operations segment that includes funds management (investment portfolio and funding) and corporate investments. Our organizational structure is designed to facilitate high-level customer service, prompt response, efficiency, and appropriate, uniform credit standards and other controls.

Banking Segments – Our banking segments include Oklahoma Banking, which includes the Stillwater division, the Central Oklahoma division based in Oklahoma City, the Tulsa division, and the Colorado division based in Denver; Texas Banking, which includes the Dallas, Austin, and San Antonio divisions; and Kansas Banking, which includes the Wichita andHutchinson divisions. All of the regional divisions focus on providing commercial and consumer financial services, including deposit products and services, to local businesses and their senior employees and to other managers and professionals living and working in our market areas. The Stillwater,  Hutchinson, and Denver divisions serve their respective markets as full-service community banks, emphasizing commercial and consumer lending. The other six  divisions pursue a more focused marketing strategy, targeting managers, professionals, and businesses for lending, and offering more specialized services. We originate and produce mortgages in our Stillwater, Oklahoma City, Tulsa, Austin, Wichita, and Denver divisions. Mortgage operations are managed through our home office located in Stillwater, Oklahoma. We originate conventional, jumbo,Federal Housing Administration ("FHA"), Veterans' Administration ("VA"), and other types of first mortgage loans for sale to the Federal National Mortgage Association (“FNMA”) or private investors. Servicing on these loans may be released or retained in connection with the sale.

Support and Control Functions – Support and control functions are centralized, although each segment has support and control personnel. Costs of centrally managed support and control functions other than funds management (which is included in the Other Operations segment) are allocated to the Banking segments. Our philosophy of customer service extends to our support and control functions. We manage and offer products that are technology based, or that otherwise are more efficiently offered centrally through our home office. These include products that are marketed through the regional offices, such as our internet banking product for commercial and retail customers (BankSNB DirectBanker®), commercial information, and item processing services (Bank SNB Digital Lockbox). Our technology products are marketed to existing customers and to help develop new customer relationships. Use of these products by customers enables us to serve our customers more effectively, use our resources more efficiently, and increase our fee income.

For additional information regarding our operating segments, please see “Note 20:Operating Segments” in the Notes to the Consolidated Financial Statements. 

Banking Centers and Geographic Markets

The majority of our banking centers are located along the heavily populated areas on the I-35 corridor through Texas, Oklahoma, and Kansas.As of December 31, 2016, Bank SNB had thirty banking centers:six located in Stillwater, Oklahoma (which includes our operations center that facilitates electronic banking), nine located in the Oklahoma City, Oklahoma metropolitan area, three located in Denver, Colorado, two each located in Tulsa, Oklahoma, San Antonio, Texas, Hutchinson, Kansas and Wichita, Kansas and, one each in Chickasha, Oklahoma, Austin, Texas, Dallas, Texas, and Tilden, Texas. In addition, we have a fully dedicated loan production office in Denver, Colorado.

We focus our efforts on markets with characteristics that will allow us to capitalize on our strengths and to continue establishing new offices in those markets. We extend loans beyond Oklahoma, Texas, Kansas, and Colorado to our borrowers who conduct business in other states.

Employees

Another major component of our strategy is to be an employer of choice in our markets. We aim to employ talented and devoted people who embrace our vision and feel invested in our success. As of December 31, 2016, we employed 387  persons on a full-time equivalent basis, including executive officers, loan and other banking officers, branch personnel, and others. None of our employees or any of our consolidated subsidiary employees are represented by a union or covered under a collective bargaining agreement. Our management considers our employee relations to be excellent.

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Competition

We encounter competition in seeking deposits and in obtaining loan, cash management, investment, and other customers. The level of competition for deposits is high. Our principal competitors for deposits are other financial institutions, including national banks, state banks, federal savings banks, and credit unions. Competition among these institutions is based primarily on interest rates and other terms offered, service charges imposed on deposit accounts, the quality of services rendered, and the convenience of banking facilities. Additional competition for depositors' funds comes from U.S. Government securities, private issuers of debt obligations, and suppliers of other investment alternatives for depositors, such as securities firms. Competition from credit unions has intensified as historic federal limits on membership have been relaxed. Because federal law subsidizes credit unions by giving them a general exemption from federal income taxes, credit unions have a significant cost advantage over national banks, federal savings banks, and state banks, which are fully subject to federal income taxes. Credit unions may use this advantage to offer rates that are more competitive than those offered by national banks, federal savings banks, and state banks.

We also compete in our lending activities with other financial institutions such as securities firms, insurance companies, small loan companies, finance companies, mortgage companies, real estate investment trusts, and other sources of funds. The level of competition for loans is high. Many of our nonbank competitors are not subject to the same extensive federal regulations that govern bank holding companies and federally-insured banks. As a result, such nonbank competitors have advantages over us in providing certain services. A number of the financial institutions with which we compete in lending, deposit, investment, cash management, and other activities are larger than us or have significantly larger market share in the markets we serve. Our Texas, Kansas, and Colorado divisions compete for loans, deposits, and other services against local and nationally based financial institutions, many of which have much larger market shares and widespread office networks. In recent years, competition has increased in our Oklahoma market areas as new entrants and existing competitors have sought to more aggressively expand their loan and deposit market shares.

The business of mortgage banking is highly competitive. We compete for loan originations with other financial institutions, such as mortgage bankers, state and national banks, federal savings banks, credit unions, and insurance companies. Many of our competitors have financial resources that are substantially greater than those available to us. We compete principally by providing competitive pricing, by motivating our sales force through the payment of commissions on loans originated and by providing high quality service to builders, borrowers, and realtors.

Supervision and Regulation

We are a financial holding company under the Holding Company Act and are regulated by the Federal Reserve. Our banking subsidiary, Bank SNB, is an Oklahomabanking corporation and is subject to regulation, supervision, and examination by the Oklahoma State Banking Department and the Federal Reserve. This regulation is intended primarily for the protection of depositors, the deposit insurance fund, and the banking system as a whole, and not for the protection of our shareholders.

The following summarizes certain provisions of existing laws and regulations that affect our operations and those of Bank SNB. Any discussion of laws and regulations applicable to a bank holding company also apply to us as a financial holding company. This summary does not address all aspects of these laws and regulations or include all laws and regulations that affect us now or may affect us in the future.

General  –As a financial holding company, we are regulated under the Holding Company Act and are subject to supervision and regular examination by the Federal Reserve. Under the Holding Company Act, we are required to furnish to the Federal Reserve quarterly and annual reports of our operations and additional information and reports. 

A financial holding company may engage in certain financial activities, including, without limitation, securities underwriting and dealing, insurance agency and underwriting activities and merchant banking activities. To engage in any such new financial activity, each insured depository institution of the financial holding company must have received a rating of at least “satisfactory” in its most recent examination under the Community Reinvestment Act, and the financial holding company must notify the Federal Reserve within 30 days of engaging in such new activity. We are currently eligible to engage in new financial activities but have no immediate plan to do so.

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Under the Holding Company Act, a bank holding company must obtain the prior approval of the Federal Reserve before (1) acquiring direct or indirect ownership or control of any class of voting securities of any bank or bank holding company if, after the acquisition, the bank holding company would directly or indirectly own or control more than 5% of the class; (2) acquiring all or substantially all of the assets of another bank or bank holding company; or (3) merging or consolidating with another bank holding company.

Also under the Holding Company Act, any company must obtain approval of the Federal Reserve prior to acquiring control of us or Bank SNB. For purposes of the Holding Company Act, "control" is defined as ownership of more than 25% of any class of voting securities, the ability to control the election of a majority of the directors, or the exercise of a controlling influence over management or policies.

The federal Change in Bank Control Act and the related regulations of the Federal Reserve require any person or persons acting in concert (except for companies required to make application under the Holding Company Act) to file a written notice with the Federal Reserve before the person or persons acquire control of us or Bank SNB. The Change in Bank Control Act defines "control" as the direct or indirect power to vote 25% or more of any class of voting securities or to direct the management or policies of a bank holding company or an insured bank.

The Holding Company Act also limits the investments and activities of bank holding companies. In general, a bank holding company is prohibited from acquiring direct or indirect ownership or control of more than 5% of the voting shares of a company that is not a bank or a bank holding company or from engaging directly or indirectly in activities other than those of banking, managing, or controlling banks, providing services for its subsidiaries, non-bank activities that are closely related to banking and other financially related activities. Our activities are subject to these legal and regulatory limitations under the Holding Company Act and Federal Reserve regulations. Non-bank and financially related activities of bank holding companies also may be subject to regulation and oversight by regulators other than the Federal Reserve.

The Federal Reserve has the power to order a bank holding company or its subsidiaries to terminate any activity, or to terminate its ownership or control of any subsidiary, when it has reasonable cause to believe that the continuation of such activity or such ownership or control constitutes a serious risk to the financial safety, soundness, or stability of any banking subsidiary of that bank holding company.

The Federal Reserve has adopted guidelines regarding the capital adequacy of bank holding companies, which require bank holding companies to maintain specified minimum ratios of capital to total assets and capital to risk-weighted assets. See “Regulatory Capital Requirements” on page 9 of this report.

The Federal Reserve has the power to prohibit dividends by bank holding companies if their actions constitute unsafe or unsound practices. The Federal Reserve has issued a policy statement on the payment of cash dividends by bank holding companies, which expresses the Federal Reserve's view that a bank holding company should pay cash dividends only to the extent that the company's net income for the past year is sufficient to cover both the cash dividends and a rate of earnings retention that is consistent with the company's capital needs, asset quality, and overall financial condition.

Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”) – The Dodd-Frank Act, enacted in July 2010, made significant changes in laws regarding the structure of banking regulation, the powers of the Federal Reserve and other federal and state banking regulators, deposit insurance assessments, the handling of troubled institutions, regulatory capital calculations, reporting and governance obligations of public companies, and many other provisions affecting supervision of banks, bank holding companies, and other financial services organizations. Among other things, the Dodd-Frank Act:

· Created the Consumer Financial Protection Bureau (“CFPB”), whose regulations may adversely affect the business operations of financial institutions offering consumer financial products or services, including us. Although the CFPB has jurisdiction over banks with $10 billion or greater in assets, the rules, regulations and policies issued by the CFPB may also apply to Bank SNB through the adoption of similar policies by the Federal Reserve, FDIC, and state banking regulators.

· Made permanent the $250,000 deposit insurance limit for insured deposits.

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· Revised the assessment base for calculating an insured depository institution’s deposit insurance premiums paid to the Deposit Insurance Fund to be based on average consolidated total assets minus average tangible equity rather than on deposits, and makes changes to the minimum designated reserve ratio of the Deposit Insurance Fund.

· Eliminated theprohibition against payment of interest on demand deposits, which allows businesses to have interest bearing demand accounts formerly prohibited by law and Federal Reserve regulations.

· Changed the requirements for certain transactions with affiliates and insiders.

· Required banking regulators to establish standards prohibiting as an unsafe and unsound practice any compensation plan of a bank holding company that provides an insider or other employee with excessive compensation or compensation that gives rise to excessive risk or could lead to a material financial loss to the institution.

· Limited the use of new trust preferred securities issued after May 19, 2010 as regulatory capital.

· Permitted banks to engage in de novo branching outside of their home states, provided that the laws of the target state permit banks chartered in that state to branch within that state.

Significant elements of the Dodd-Frank Act have been implemented, but implementation of other elements of the Act requires additional regulations, many of which have not yet been established.

Source of Strength Doctrine – Federal Reserve policy requires a bank holding company to serve as a source of financial and managerial strength to its subsidiary banks and does not permit a bank holding company to conduct its operations in an unsafe or unsound manner. Under this "source of strength doctrine", a bank holding company is expected to stand ready to use its available resources to provide adequate capital funds to its subsidiary banks during periods of financial stress or adversity, and to maintain resources and the capacity to raise capital that it can commit to its subsidiary banks. Any capital loans by a bank holding company to any of its subsidiary banks are subordinate in right of payment of deposits and to certain other indebtedness of such subsidiary banks. The Holding Company Act provides that, in the event of a bank holding company's bankruptcy, any commitment by the bank holding company to a federal bank regulatory agency to maintain the capital of a subsidiary bank will be assumed by the bankruptcy trustee and entitled to priority of payment. Furthermore, the Federal Reserve has the right to order a bank holding company to terminate any activity that the Federal Reserve believes is a serious risk to the financial safety, soundness or stability of any subsidiary bank. The Dodd-Frank Act codified the "source of strength doctrine".

State Member Bank Regulation – As an Oklahoma state-chartered bank that is a member of the Federal Reserve System, Bank SNB is subject to the primary supervision of the Oklahoma State Banking Department and the Federal Reserve. Prior regulatory approval is required for Bank SNB to establish or relocate a branch office or to engage in any merger, consolidation, or significant purchase or sale of assets.

The Oklahoma State Banking Department and the Federal Reserve regularly examine the operations and condition of Bank SNB, including, but not limited to, its capital adequacy, loans, allowance for loan losses, investments, liquidity, interest rate risk, and management practices. In addition, Bank SNB is required to furnish quarterly and annual reports to the Federal Reserve. Oklahoma State Banking Department and the Federal Reserve enforcement authority includes the power to remove officers and directors and the authority to issue cease-and-desist orders to prevent a state member bank from engaging in unsafe or unsound practices or violating laws or regulations governing its business.

Dividend Restrictions – Dividends from Bank SNB constitute the principal source of our cash revenues. The payment of dividends by Bank SNB is subject to regulatory restrictions.  Bank SNB is subject to legal and regulatory limitations on the amount of dividends that it may pay without prior approval of the Oklahoma State Banking Department and the Federal Reserve. Under these regulations, the total amount of dividends that may be paid in any calendar year by Bank SNB to us without regulatory approval is limited to the current year’s net profits, combined with the retained net profits of the preceding two years. In addition, Bank SNB is prohibited by federal statute from paying dividends or making any other capital distribution that would cause Bank SNB to fail to meet its regulatory capital requirements or when the payment of dividends would be an unsafe and unsound banking practice.

Limits on Loans to One Borrower – As an Oklahoma state-chartered bank, Bank SNB is subject to limits on the amount of loans it can make to one borrower. With certain limited exceptions, loans and extensions of credit from Oklahoma state-chartered banks outstanding to any borrower (including certain related entities of the borrower) at any one time may not exceed

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30% of the capital of the bank. An Oklahoma state-chartered bank may lend an additional amount if the loan is fully secured by certain types of collateral, like bonds or notes of the United States. Certain types of loans are exempted from the lending limits, including loans secured by segregated in-bank deposits. We have established an internal limit of $20.0 million to any one borrower.

Transactions with Affiliates – Bank SNB is subject to restrictions imposed by federal law on extensions of credit to, and certain other transactions with, us and other affiliates and on investments in our and their stock or other securities. These restrictions prevent us and our nonbanking subsidiaries from borrowing from Bank SNB unless the loans are secured by specified collateral. Additionally, the restrictions require our transactions with Bank SNB to have terms comparable to terms of arms-length transactions with unaffiliated third persons. In addition, secured loans and investments by Bank SNB are generally limited to 10% of Bank SNB’s capital and surplus with respect to us and Bank SNB’s other affiliates on an individual basis, and to 20% of Bank SNB’s capital and surplus with respect to us and all other Bank SNB affiliates in the aggregate. Certain exemptions to these limitations apply to extensions of credit by, and other transactions between, Bank SNB and our other subsidiaries. These regulations and restrictions may limit our ability to obtain funds from Bank SNB for our cash needs, including funds for acquisitions and for payment of dividends, interest, and operating expenses. 

Real Estate Lending Guidelines – Under federal and state banking regulations, banks must adopt and maintain written policies that establish appropriate limits and standards for extensions of credit secured by liens or interests in real estate or that are made for the purpose of financing permanent improvements to real estate. These policies must establish loan portfolio diversification standards; prudent underwriting standards, including loan-to-value limits, that are clear and measurable; loan administration procedures; and documentation, approval, and reporting requirements. A bank’s real estate lending policy must reflect consideration of the Interagency Guidelines for Real Estate Lending Policies (the "Guidelines") adopted by the federal banking regulators. The Guidelines, among other things, call for internal loan-to-value limits for real estate loans that are not in excess of the limits specified in the Guidelines. The Guidelines state, however, that it may be appropriate in individual cases to originate or purchase loans with loan-to-value ratios in excess of the supervisory loan-to-value limits.

Federal Deposit Insurance – Bank SNB pays deposit insurance premiums to the FDIC. For additional information, see “Management’s Discussion and Analysis – FDIC and other insurance” on page 37 of this report.

Regulatory Capital Requirements – The Federal Reserve, the Oklahoma State Banking Department, and the FDIC have established guidelines for maintenance of appropriate levels of capital by bank holding companies and banks. The regulations impose two sets of capital adequacy requirements: minimum leverage rules, which require bank holding companies and banks to maintain a specified minimum ratio of capital to total average assets, and risk-based capital rules, which require the maintenance of specified minimum ratios of capital to "risk-weighted" assets.

Federal regulations require bank holding companies and banks to maintain a minimum leverage ratio of Tier 1 capital (as defined in the risk-based capital guidelines discussed in the following paragraphs) to total assets of 3.0%. The capital regulations state, however, that only the strongest bank holding companies and banks with composite examination ratings of 1 under the rating system used by the federal banking regulators would be permitted to operate at or near this minimum level of capital. All other bank holding companies and banks are expected to maintain a leverage ratio of at least 1% to 2% above the minimum ratio, depending on the assessment of an individual organization's capital adequacy by its primary regulator. A bank or bank holding company experiencing or anticipating significant growth is expected to maintain capital well above the minimum levels. In addition, the Federal Reserve has indicated that it also may consider the level of an organization's ratio of Tier 1 capital to total assets in making an overall assessment of capital. 

The risk-based capital rules require bank holding companies and banks to maintain minimum regulatory capital levels based upon a weighting of their assets and off-balance sheet obligations according to risk. The risk-based capital rules have two basic components: a core capital (Tier 1) requirement and a supplementary capital (Tier 2) requirement. Core capital consists primarily of common stockholders' equity and, subject to certain limitations, qualifying perpetual preferred stock, trust preferred securities, minority interests in the equity accounts of consolidated subsidiaries, and deferred tax assets, less all intangible assets, except for certain mortgage servicing rights and purchased credit card relationships. Supplementary capital elements include, subject to certain limitations, the allowance for losses on loans and leases, and the amount of perpetual preferred stock and trust preferred securities that does not qualify as Tier 1 capital, long-term preferred stock with an original maturity of at least 20 years from issuance, hybrid capital instruments, including perpetual debt and mandatory convertible securities, subordinated debt, intermediate-term preferred stock, and up to 45% of pre-tax net unrealized gains on available for sale equity securities.

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The Dodd-Frank Act includes certain provisions concerning the components of regulatory capital. Certain of these provisions are intended to eliminate or significantly reduce the use of hybrid capital instruments, especially trust preferred securities, as regulatory capital. Under these provisions, trust preferred securities issued before May 19, 2010 by a company, such as us, with total consolidated assets of less than $15 billion, are eligible to be treated as regulatory capital, but any such securities issued after May 19, 2010 are not eligible to be treated as regulatory capital.

The risk-based capital regulations assign balance sheet assets and credit equivalent amounts of off-balance sheet obligations to one of four broad risk categories based principally on the degree of credit risk associated with the obligor. The assets and off-balance sheet items in the four risk categories are weighted at 0%, 20%, 50%, and 100%. These computations result in the total risk-weighted assets. The risk-based capital regulations require all banks and bank holding companies to maintain a minimum ratio of total capital to total risk-weighted assets of 8%, with at least 4% as core capital. For the purpose of calculating these ratios: (i) supplementary capital is limited to no more than 100% of core capital; and (ii) the aggregate amount of certain types of supplementary capital is limited. In addition, the risk-based capital regulations limit the allowance for loan losses that may be included in capital to 1.25% of total risk-weighted assets.

The federal and state banking regulatory agencies have established a joint policy regarding the evaluation of banks' capital adequacy for interest rate risk. Under the policy, the assessment of a bank's capital adequacy includes an assessment of exposure to adverse changes in interest rates. Management believes our interest rate risk management systems and our capital relative to our interest rate risk are adequate.

Federal and state banking regulations also require banks with significant trading assets or liabilities to maintain supplemental risk-based capital based upon their levels of market risk. Bank SNB did not have any trading assets or liabilities during 2016, 2015, or 2014 and was not required to maintain such supplemental capital. 

The federal and state banking regulators have established regulations that classify banks by capital levels and provide for various "prompt corrective actions" to resolve the problems of any bank that fails to satisfy the capital standards. Under these regulations, a well-capitalized bank is one that is not subject to any regulatory order or directive to meet any specific capital level and that has a total risk-based capital ratio of 10% or more, a Tier 1 risk-based capital ratio of 8% or more, and a leverage ratio of 5% or more. An adequately capitalized bank is one that does not qualify as well-capitalized but meets or exceeds the following capital requirements: a total risk-based capital ratio of 8%, a Tier 1 risk-based capital ratio of 6%, and a leverage ratio of either (i) 4% or (ii) 3% if the bank has the highest composite examination rating. A bank that does not meet these standards is categorized as undercapitalized, significantly undercapitalized, or critically undercapitalized, depending on its capital levels. A bank that falls within any of these three undercapitalized categories is subject to severe regulatory sanctions. As of December 31, 2016, Bank SNB was well-capitalized as defined in applicable banking regulations. For information regarding Bank SNB’s compliance with its regulatory capital requirements, see “Management's Discussion and Analysis – Capital Resources” on page45 of this reportand in the Notes to the Consolidated Financial Statements in this report, “Note 16 Capital Requirements and Regulatory Matters”.

Basel III – United States banking regulators are members of the Basel Committee on Banking Supervision. This committee issues accords, which include capital guidelines for use by regulators in individual countries, generally referred to as Basel I (1988), Basel II (2004), and Basel III (2011). U.S. banking agencies have published the final proposed rules to implement Basel III in the United States (the “Basel III Capital Rules”), which were effective for us January 1, 2015 (subject to a phase-in period for certain provisions). The Basel III Capital Rules introduced a comprehensive new regulatory framework for U.S. banking organizations, which is consistent with international standards. The implementation of Basel III is intended to help ensure that banks of all sizes maintain strong capital positions to keep them viable during times of financial stress and severe economic downturns.

The Basel III Capital Rules, among other things, introduce a new capital measure called “Common Equity Tier 1” (“CET1”), specify that Tier 1 capital consists of CET1 and “Additional Tier 1 capital” instruments meeting specified requirements, define CET1 narrowly byrequiring that most deductions/adjustments to regulatory capital measures be made to CET1 and not to the other components of capital, andexpand the scope of the deductions/adjustments as compared to existing regulations.

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Under the Basel III Capital Rules, the initial minimum capital ratios that became effective on January 1, 2015 are as follows:

· 4.5% CET1 to risk weighted assets

· 6.0% Tier 1 capital to risk weighted assets

· 8.0% Total capital to risk weighted assets

· 4.0% Tier 1 capital to average quarterly assets

When fully phased in on January 1, 2019, the Basel III Capital Rules will require us to maintain (i) a minimum ratio of CET1 to risk-weighted assets of at least 4.5%, plus a “capital conservation buffer” equal to 2.5% of total risk-weighted assets (the “Capital Buffer”), (ii) a minimum ratio of Tier 1 capital to risk-weighted assets of at least 6.0%, plus the Capital Buffer, (iii) a minimum ratio of Total capital to risk-weighted assets of at least 8.0%, plus the Capital Buffer and (iv) a minimum leverage ratio of 4%, calculated as the ratio of Tier 1 capital to average quarterly assets. The Capital Buffer will be tested on a quarterly basis. Our ability to pay dividends, discretionary bonuses, or repurchase stock will be restricted unless we maintain the Capital Buffer. As of December 31, 2016, we were well-capitalized even if we apply the Capital Buffer, which does not go into effect until future years.

The Basel III Capital Rules also prescribe a standardized approach for risk weightings that expand the risk-weighting categories from the four Basel I-derived categories to a much larger and more risk-sensitive number of categories, depending on the nature of the assetsand resulting in higher risk weights for a variety of asset categories. Specific changes to the rules impacting our determination of risk-weighted assets includea 150% risk weight instead of a 100% risk weight for certain high volatility commercial real estate acquisition, development andconstruction loans, anda 150% risk weight to exposures that are 90 days past due.

Banks with under $250 billion in assets were given a one-time, opt-out election under the Basel III Capital Rules to filter from regulatory capital certain accumulated other comprehensive income (“AOCI”) components. Without this election, a bank must reflect unrealized gains and losses on “available for sale” securities in regulatory capital. This AOCI opt-out election had to be made on a bank’s first regulatory report filed after January 1, 2015. 

We timely made the AOCI opt-out election. Accordingly, amounts reported as accumulated other comprehensive income/loss related to securities available for sale and effective cash flow hedges do not increase or reduce regulatory capital and are not included in the calculation of risk-based capital and leverage ratios. Regulatory agencies for banks and bank holding companies utilize capital guidelines designed to measure capital and take into consideration the risk inherent in both on-balance sheet and off-balance sheet items.

Brokered Deposits – Well-capitalized institutions are not subject to limitations on brokered deposits, while an adequately capitalized institution is able to accept, renew, or rollover brokered deposits only with a waiver from the FDIC and subject to certain restrictions on the yield paid on such deposits. Undercapitalized institutions are not permitted to accept brokered deposits. Bank SNB is well-capitalized and therefore is eligible to accept brokered deposits without limitation.

Supervision and Regulation of Mortgage Banking Operations – Bank SNB’s mortgage banking business is subject to the rules and regulations of the U.S. Department of Housing and Urban Development, FHA, VA, and FNMA with respect to originating, processing, selling, and servicing mortgage loans. Those rules and regulations, among other things, prohibit discrimination and establish underwriting guidelines, which include provisions for inspections and appraisals, require credit reports on prospective borrowers, and fix maximum loan amounts. Lenders such as Bank SNB are required to submit financial statements to FNMA, FHA, and VA annually. Each regulatory entity has its own financial requirements. Lenders’ affairs are also subject to examination by the Federal Reserve, FNMA, FHA, and VA at all times to assure compliance with the applicable regulations, policies, and procedures. Mortgage origination activities are subject to, among others, the Equal Credit Opportunity Act, Federal Truth-in-Lending Act, Fair Housing Act, Home Mortgage Disclosure Act, Fair Credit Reporting Act, the National Flood Insurance Act, and the Real Estate Settlement Procedures Act, and related regulations that prohibit discrimination and require the disclosure of certain basic information to mortgagors concerning credit terms and settlement costs. Bank SNB mortgage banking operations are also affected by various state and local laws and regulations and the requirements of various private mortgage investors. 

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Community Reinvestment – Under the Community Reinvestment Act (“CRA”), a financial institution has a continuing and affirmative obligation to help meet the credit needs of its entire community, including low and moderate income neighborhoods. The CRA does not establish specific lending requirements or programs for financial institutions or limit an institution’s discretion to develop the types of products and services that it believes are best suited to its particular community. However, institutions are rated on their performance in meeting the needs of their communities. Performance is tested in three areas: (a) lending, to evaluate the institution’s record of making loans in its assessment areas; (b) investment, to evaluate the institution’s record of investing in community development projects, affordable housing, and programs benefiting low- or moderate-income individuals and businesses; and (c) service, to evaluate the institution’s delivery of services through its branches, ATMs and other offices. The CRA requires each federal banking agency, in connection with its examination of a financial institution, to assess and assign one of four ratings to the institution’s record of meeting the credit needs of its community and to take such record into account in its evaluation of certain applications by the institution, including applications for charters, branches, and other deposit facilities, relocations, mergers, consolidations, acquisitions of assets or assumptions of liabilities, bank and bank holding company acquisitions, and savings and loan holding company acquisitions. The CRA also requires that all institutions make public disclosure of their CRA ratings. Bank SNB was assigned a “satisfactory” rating as a result of its last CRA examination.

Bank Secrecy Act; Patriot Act – Under the Bank Secrecy Act (“BSA”), a financial institution is required to have systems in place to detect certain transactions based on the size and nature of the transaction. Financial institutions are generally required to report cash transactions involving more than $10,000 to the U.S. Treasury. In addition, financial institutions are required to file suspicious activity reports for transactions that involve more than $5,000 and which the financial institution knows, suspects, or has reason to suspect involves illegal funds, is designed to evade the requirements of the BSA, or has no lawful purpose. The Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act, commonly referred to as the “USA PATRIOT Act” or the “Patriot Act,” enacted in response to the September 11, 2001 terrorist attacks, contains prohibitions against specified financial transactions and account relationships, as well as enhanced due diligence standards intended to prevent the use of the United States financial system for money laundering and terrorist financing activities. The Patriot Act requires banks and other depository institutions, brokers, dealers and certain other businesses involved in the transfer of money to establish anti-money laundering programs, including employee training and independent audit requirements meeting minimum standards specified by the act, to follow standards for customer identification and maintenance of customer identification records, and to compare customer lists against lists of suspected terrorists, terrorist organizations, and money launderers. The Patriot Act also requires federal bank regulators to evaluate the effectiveness of an applicant in combating money laundering in determining whether to approve a proposed bank acquisition.

Other Laws and Regulations – Some of the aspects of the lending and deposit business of Bank SNB are subject to regulation by the Federal Reserve and the FDIC, including reserve requirements and disclosure requirements in connection with personal and mortgage loans and deposit accounts. In addition, Bank SNB is subject to numerous federal and state laws and regulations that include specific restrictions and procedural requirements with respect to the establishment of branches, investments, interest rates on loans, credit practices, the disclosure of credit terms, and discrimination in credit transactions.

Enforcement Actions – Federal statutes and regulations provide financial institution regulatory agencies with great flexibility to undertake an enforcement action against an institution that fails to comply with regulatory requirements. Possible enforcement actions range from the imposition of a capital plan and capital directive to civil money penalties, cease-and-desist orders, receivership, conservatorship, or the termination of deposit insurance.

Available Information

We provide internet access to our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports through our Investor Relations section at www.oksb.com (This site is also accessible through Bank SNB’s website at www.banksnb.com.) The SEC maintains a website (www.sec.gov) where these filings also are available through the SEC’s EDGAR system. There is no charge for access to these filings through either our site or the SEC’s site, although users should understand that there may be costs associated with electronic access, such as usage charges from Internet access providers and telephone companies, that they may bear. The public also may read and copy materials filed by us with the SEC at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, DC 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330.

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ITEM 1A.  RISK FACTORS

The following are some important risk factors that could affect our future financial performance or could cause our future earnings to be lower or our financial condition to be less favorable than we expect. In addition, other risks of which we are not aware, or which we do not believe are material, may also impair or adversely affect our business, financial condition or results of operation.

Risks Relating to our Business 

Difficult and unsettled market conditions may affect our profits and loan quality and may continue to do so for an unknown period.

Unsettled market conditions may increase the likelihood and the severity of adverse effects discussed in the following risk factors, in particular: 

· There may be less demand for our products and services; 

· Competition in our industry could intensify as a result of increased consolidation of the banking industry; 

· It may become more difficult to estimate losses inherent in our loan portfolio; 

· Loan delinquencies and problem assets may increase; 

· Collateral for loans may decline in value, increasing loan to value ratios and reducing our customers’ borrowing power and the security for our loans; 

· Deposits and borrowings may become even more expensive relative to yields on loans and securities, reducing our net interest margin, and making it more difficult to maintain adequate sources of liquidity; 

· Asset based liquidity, which depends upon the marketability of assets such as mortgages, may be reduced; and 

· Compliance with banking regulations enacted in connection with stimulus legislation and other legislation may increase our costs, limit our ability to pursue business opportunities, and impair our ability to hire and retain talented managers. 

Changes in interest rates and other factors beyond our control may adversely affect our earnings and financial condition. 

Our net income depends to a great extent upon the level of our net interest income. Changes in interest rates can increase or decrease net interest income and net income. Net interest income is the difference between the interest income we earn on loans, investments, and other interest-earning assets, and the interest we pay on interest-bearing liabilities, such as deposits and borrowings. Net interest income is affected by changes in market interest rates, because different types of assets and liabilities may react differently, and at different times, to market interest rate changes. When interest-bearing liabilities mature or reprice more quickly than interest-earning assets in a period, an increase in market rates of interest could reduce net interest income. Similarly, when interest-earning assets mature or reprice more quickly than interest-bearing liabilities, falling interest rates could reduce net interest income. 

Market interest rates are affected by many factors beyond our control, including inflation, unemployment, money supply, international events, and events in world financial markets.  We attempt to manage our risk from changes in market interest rates by adjusting the rates, maturity, repricing, and balances of the different types of interest-earning assets and interest-bearing liabilities, but interest rate risk management techniques are not exact. As a result, a rapid increase or decrease in interest rates could have an adverse effect on our net interest margin and results of operations. Changes in the market interest rates for types of products and services in our various markets also may vary significantly from location to location and over time based upon competition and local or regional economic factors. The results of our interest rate sensitivity simulation model depend upon a number of assumptions which may not prove to be accurate. There can be no assurance that we will be able to successfully manage our interest rate risk. 

Changes in local economic conditions could adversely affect our business. 

Our commercial and commercial real estate lending operations are concentrated in the metropolitan areas of Oklahoma City, Stillwater, Edmond, and Tulsa, Oklahoma; Dallas, Austin, and San Antonio, Texas; Hutchinson and Wichita Kansas;  

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and Denver, Colorado. Our success depends in part upon economic conditions in these markets. Adverse changes in economic conditions in these markets could reduce our growth in loans and deposits, impair our ability to collect our loans, increase our problem loans and charge-offs and otherwise negatively affect our performance and financial condition. 

Adverse changes in healthcare-related businesses could lead to slower loan growth and higher levels of problem loans and charge-offs. 

We have approximately $423.8 million in loans to individuals and businesses involved in the healthcare industry, including business and personal loans to physicians, dentists, and other healthcare professionals, and loans to for-profit hospitals, nursing homes, suppliers and other healthcare-related businesses, representing approximately 23% of total loans outstanding as of December 31, 2016. Our strategy calls for continued commitment to healthcare lending. This concentration exposes us to the risk that adverse developments in the healthcare industry could hurt our profitability and financial condition as a result of increased levels of nonperforming loans and charge-offs and reduced loan demand and deposit growth.  

The Patient Protection and Affordable Care Act, as amended by the Health Care and Educations Reconciliations Act of 2010, has impacted the provision of healthcare in the United States. We have assessed its potential outcome on the market for healthcare and our services for the healthcare industry, and believe it is too early to conclude the entire impact on them. However, some trends are emerging. We are beginning to see an evolution that favors larger healthcare providers, which is driving many strategic mergers and acquisitions. Also, reimbursement and service provider margins continue to be pressed. The law is complex and implementation requires the adoption of significant regulations. As a result, the new laws could have adverse effects on the growth and profitability of our healthcare business.There is additional uncertainty as to the future of the Affordable Care Act following the election of President Trump. President Trump and Congress have indicated a desire and a willingness to repeal the Affordable Care Act, possibly without a replacement, although replacement options are being considered. Until the future of the Affordable Care Act and any replacement statute is decided, the healthcare industry will continue to experience increased uncertainty as to the environment in which healthcare providers will operate.

We have credit exposure to the oil and gas industry.

Our direct exposure to the oil and gas industry is approximately 3% of our portfolio loans. However, many of our customers provide transportation and other services and products that support oil and gas exploration and production activities. As of December 31, 2016, we had  $84.7 million in loan commitments, of which $48.6 million was funded debt, to borrowers in the oil and gas industry. As of December 31, 2016, the price per barrel of crude oil was approximately $54 compared to approximately $37 as of December 31, 2015. Ifoil prices return to lower levels for an extended period, we could experience weaker energy loan demand and increased losses within our energy portfolio. Furthermore, a prolonged period of low or stagnant oil prices could have a negative impact on the economies of energy-dominant states such as Oklahoma and Texas. As a result, low oil prices could have an adverse effect on our business, financial condition and results of operation. We have the ability to adjust the borrowing base on outstanding commitments based on market price and condition.

Our allowance for loan losses may not be adequate to cover our actual loan losses, which could adversely affect our earnings. 

We maintain an allowance for loan losses in an amount that we believe is appropriate to provide for losses inherent in the portfolio. While we strive to carefully monitor credit quality and to identify loans that may become nonperforming, at any time there are loans included in the portfolio that will result in losses but that have not been identified as nonperforming or potential problem loans. We cannot be sure that we will be able to identify deteriorating loans before they become nonperforming assets or that we will be able to limit losses on those loans that are identified. As a result, future additions to the allowance may be necessary. Additionally, future additions may be required based on changes in the loans comprising the portfolio and changes in the financial condition of borrowers, such as may result from changes in economic conditions or as a result of incorrect assumptions by management in determining the allowance. Federal banking regulators, as an integral part of their supervisory function, periodically review our allowance for loan losses. These regulatory agencies may require us to increase our provision for loan losses or to recognize further loan charge-offs based

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upon their judgments, which may be different from ours. Any increase in the allowance for loan losses could have a negative effect on our financial condition and results of operations. 

Commercial and commercial real estate loans comprise a significant portion of our total loan portfolio. These types of loans typically are larger than residential real estate loans and other consumer loans. Because our loan portfolio contains a significant number of commercial and commercial real estate loans with relatively large balances, the deterioration of one or a few of these loans may cause a significant increase in nonperforming assets. An increase in nonperforming loans could result in a loss of earnings from these loans, an increase in the allowance for loan losses, or an increase in loan charge-offs, which could have an adverse impact on our results of operations and financial condition. 

The results of our most recent internal credit stress test may not accurately predict the impact on our financial condition if the economy’s performance is worse than we expect.  

We perform internal assessments of our capital and asset quality as part of our planning process. Our process includes stress tests using alternative credit quality assumptions in order to estimate their effects on loan loss provisions, net income, and regulatory capital ratios. The alternative assumptions include mild and severe credit quality stress scenarios.   

The results of these stress tests involve assumptions about the economy, future loan losses and default rates, which may not accurately reflect the impact on our earnings or financial condition or actual future conditions. Actual future economic conditions may result in significantly higher credit losses than we assume in our stress tests, with a corresponding more negative impact on our earnings, financial condition, and capital than those predicted by our internal stress test. 

We may not realize our deferred tax assets.  

We may experience negative or unforeseen tax consequences. We reviewthe probability of the realization of our deferred tax assets based on forecasts of taxable income quarterly. This review uses historical results, projected future operating results based on approved business plans, eligible carryforward and carryback periods, tax-planning opportunities and other relevant considerations. Adverse changes in the profitability and financial outlook in the U.S. and our industry may require the creation of a valuation allowance to reduce our deferred tax assets. Such changes could result in material non-cash expenses in the period in which the changes are made and could have a material adverse impact on our results of operations and financial condition. 

Additionally, we conduct quarterly assessments of our deferred tax assets. The carrying value of these assets is dependent upon earnings forecasts and prior period changes, among other things. A significant change in our assumptions could affect the carrying value of our deferred tax assets on our balance sheet. 

Our earnings and financial condition may be adversely affected by changes in accounting principles and in tax laws, or the interpretation of them.

Changes in U.S. generally accepted accounting principles could have negative effects on our reported earnings and financial condition. 

Changes in tax laws, rules, and regulations, including changes in the interpretation or implementation of tax laws, rules, and regulations by the Internal Revenue Service or other governmental bodies, could affect us in significant and unpredictable ways. Such changes could subject us to additional costs, among other things. Failure to comply with tax laws, rules, and regulations could result in sanctions by regulatory agencies, civil money penalties, and reputation damage. 

Our information systems may experience an interruption or breach in security.

We rely heavily on third-party services for communications, information systems, and the internetfor nearly every spectrum of our business operations. Any failure, interruption, or breach in security ofthese systems could result in failures or disruptions in our customer relationship management, general ledger, deposit, loan, and other systems.We have taken steps designed to improve the security and redundancy of our networks and computer systems and our physical space.Despite these defensive measures designed to prevent or limit the effect of the failure, interruption, or security breach of our informationsystems, there can be no assurance that any such failures, interruptions, or security breaches will not occur or, if they do occur, that they will beadequately addressed. The potential consequences of a material cybersecurity incident

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includeinterruption of our business operations, damage to ourreputation, loss of customer business, and additional regulatory scrutiny or civil litigation and possible financialliability, any of which could have a material adverse effect on our financial condition and results of operations. In some situations, we may not become aware of a cyber incident for some time after it occurs, which could increase our exposure.

In the event of a failure in our computer systems, we would rely on our disaster recovery system to keep our business operational. Any unanticipated problems with our disaster recovery systems could have a material adverse impact on our ability to conduct our business efficiently and without significant additional expenses and may have a material adverse effect on our financial condition and results of operations.

Government regulation significantly affects our business. 

The banking industry is heavily regulated. Banking regulations are primarily intended to protect the federal deposit insurance funds, depositors and the banking system as a whole, not shareholders. Bank SNB is subject to regulation and supervision by the Oklahoma State Banking Department and the Federal Reserve. We are subject to regulation and supervision by the Board of Governors of the Federal Reserve System. The burden imposed by federal and state regulations puts banks at a competitive disadvantage compared to less regulated competitors such as finance companies, mortgage banking companies, and leasing companies.

Changes in the laws, regulations, and regulatory practices affecting the banking industry may limit our ability to increase or assess fees for services provided, increase our costs of doing business or otherwise adversely affect us and create competitive advantages for others. Regulations affecting banks and financial services companies undergo continuous change, and we cannot predict the ultimate effect of these changes, which could have a material adverse effect on our profitability and financial condition. Federal economic and monetary policy may also affect our ability to attract deposits and other funding sources, make loans and investments, and achieve satisfactory interest spreads.   

The FDIC insures deposits at insured financial institutions up to certain limits. The FDIC charges insured financial institutions premiums to maintain the Deposit Insurance Fund. Economic conditions in the past have contributed to bank failures. The FDIC may increase our deposit insurance costs by increasing regular assessment rates and levying special assessments, which may in the future significantly and adversely affect our net income. 

The Dodd-Frank Act will likely continue to increase our regulatory compliance burden and costs, may place restrictions on certain products and services, and limit our future capital raising alternatives.  

The Dodd-Frank Act made significant, wide-ranging changes in the regulation of the financial services industry that affect all financial institutions, including us.  The Dodd-Frank Act may continue to increase our regulatory compliance burden, increase the costs associated with regulatory examinations and compliance measures, and increase other operating costs.  

Among other things, the Dodd-Frank Act eliminated the prohibition of paying interest on commercial demand deposits, which may increase our funding costs, and limits the use of new trust preferred securities as regulatory capital. In addition, the Dodd-Frank Act created the Consumer Financial Protection Bureau, whose regulations may adversely affect our business operations. Although the Consumer Financial Protection Bureau has jurisdiction over banks with $10 billion or greater in assets, rules, regulations and policies issued by the Bureau may also apply to us through the adoption of similar policies by the Federal Reserve.  

Significant elements of the Dodd-Frank Act have been implemented, but implementation of other elements of the Dodd-Frank Act requires additional regulations, some of which have not yet been established. There is additional uncertainty as to the future of the Dodd-Frank Act following the election of President Trump. President Trump and Congress have indicated a desire and a willingness to repeal certain provisions of the Dodd-Frank Act. Certain provisions of the Dodd-Frank Act that have yet to be implemented may never be implemented and additional repeal or amendments to various sections of the Dodd-Frank Act are likely. This additional uncertainty may increase our risks and costs until such time as any changes are finally implemented.

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Examination reports may include significant findings and assessments about our condition and operations that are not publicly disclosed. Assessments by bank examiners may cause us to increase our publicly reported problem assets and potential problem loans, charge-offs, or provisions for loan losses.

Examinations by federal regulatory agencies include assessments of risk, financial health, capital adequacy, loan risk, and other factors that federal banking laws do not allow to be publicly disclosed. The assignment of loans to credit risk categories involves judgment and the application of credit policies. In their examinations, federal banking examiners may assign different risk categories to loans than those assigned by management. In that case, we must amend our risk categorizations to match those assigned by the bank examiners, which may result in increases in publicly reported problem and potential problem loans, charge-offs, or provisions for loan losses. 

We rely on our management and other key personnel, and the loss of any of them may adversely affect our operations.  

We are and will continue to be dependent upon the services of our executive management team. In addition, we will continue to depend on our ability to retain and recruit key commercial bankers. The unexpected loss of services of any key management personnel or the inability to recruit and retain qualified personnel in the future could have an adverse effect on our business and financial condition. 

Competition may decrease our growth or profits. 

We compete for loans, deposits, and investment dollars with other banks and other financial institutions and enterprises, such as securities firms, insurance companies, savings associations, credit unions, mortgage brokers, and private lenders, many of which have substantially greater resources than ours. Credit unions have federal tax exemptions, which they may take advantage of to offer lower rates on loans and higher rates on deposits than taxpaying financial institutions such as commercial banks. In addition, non-depository institution competitors are generally not subject to the extensive regulation applicable to institutions that offer federally insured deposits. Other institutions may have other competitive advantages in particular markets or may be willing to accept lower profit margins on certain products. These differences in resources, regulation, competitive advantages, and business strategy may decrease our net interest margin, may increase our operating costs, and may make it harder for us to compete profitably.  

Risks Related to the Acquisition of Southwest by Simmons

Business uncertainties while the Merger is pending may negatively impact our ability to attract and retain personnel and impact our customer relationships.

Uncertainty about the effect of the Merger on our employees and customers may have an adverse effect on us. These uncertainties may impair our ability to attract, retain and motivate key personnel until the Merger is completed, and could cause customers and others that deal with us to seek to change their existing business relationships with us.  Retention of certain employees by Southwest may be challenging while the Merger is pending, as certain employees may experience uncertainty about their future roles with the combined company. If key employees depart because of issues relating to the uncertainty and difficulty of integration or a desire not to remain with the combined entity, our business could be harmed.

Regulatory approvals for the Merger may not be received, may take longer than expected or may impose conditions that are not presently anticipated or that could have an adverse effect on the combined company following the Merger.

In determining whether to grant regulatory approvals for the Merger, the regulators consider a variety of factors, including the regulatory standing of each party and the factors described under ‘‘Supervision and Regulation’’. An adverse development in either party’s regulatory standing or these factors could result in an inability to obtain approval for the Merger or delay receipt of such approvals. The regulators may impose conditions on the completion of the Merger or require changes to the terms of the Merger. Such conditions or changes could have the effect of delaying or preventing completion of the Merger or imposing additional costs on or limiting the revenues of the combined company following the Merger, any of which might have an adverse effect on the combined company following the Merger.

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If the Merger is not completed, we will have incurred substantial expenses without realizing the expected benefits of the Merger.

We have incurred and will incur substantial expenses in connection with the negotiation and completion of the transactions contemplated by the Merger Agreement. If the Merger is not completed, we would have to recognize the expenses we have incurred without realizing the expected benefits of the Merger, which could materially impact our earnings and results of operations.

The Merger Agreement limits our ability to pursue acquisition proposals and requires us to pay a termination fee under limited circumstances.

The Merger Agreement prohibits us from initiating, soliciting, knowingly encouraging or knowingly facilitating certain third party acquisition proposals. The Merger Agreement also provides that we must pay a termination fee in the amount of $20 million in the event the Merger Agreement is terminated under certain circumstances, including involving our failure to abide by certain obligations not to solicit acquisition proposals and our board of directors withdrawing or materially and adversely changing its recommendation that our shareholders approve the Merger proposal. These provisions might discourage a potential competing acquirer that might have an interest in acquiring all or a significant part of us from considering or proposing such an acquisition.

Termination of the Merger Agreement could negatively impact us.

If the Merger Agreement is terminated, there may be various negative consequences to us. For example, our businesses may have been impacted adversely by the failure to pursue other beneficial opportunities due to the focus of management on the Merger, without realizing any of the anticipated benefits of completing the Merger. The closing price of our common stock on March 8, 2017 was $26.85 per share, which is 10% higher than the $24.30 closing price of our common stock on December 13, 2016, the day immediately prior to the announcement of the Merger. If the Merger Agreement is terminated, it is likely that the market price of our common stock will decline to the extent that the current market price reflects a market assumption that the Merger will be completed.

Risks Related to Ownership of Our Common Stock 

The market price for our common stock may be highly volatile, which may make it difficult for investors to resell shares of common stock at times they desire or at prices they find attractive.

The overall market and the price of our common stock fluctuates as a result of a variety of factors, many of which are beyond our control. These factors include, in addition to those described in the Risk Factors:  

· Market assumptions with respect to the likelihood of consummation of the Merger with Simmons;

· Actual or anticipated quarterly fluctuations in our operating results and financial condition; 

· Changes in financial estimates or publication of research reports and recommendations by financial analysts or actions taken by rating agencies with respect to us or other financial institutions; 

· Speculation in the press or investment community generally or relating to our reputation or the financial services industry; 

· The size of the public float of our common stock; 

· Repurchases by us under our stock repurchase program;

· Strategic actions by us or our competitors, such as acquisitions, restructurings, dispositions, or financings; 

· Fluctuations in the stock price and operating results of our competitors; 

· Future sales of our equity or equity-related securities; 

· Proposed or adopted regulatory changes or developments; 

· Unknown, anticipated or pending investigations, proceedings, or litigation that involve or affect us; 

· Domestic and international economic factors unrelated to our performance; and 

· General market conditions and, in particular, developments related to market conditions for the financial services industry. 

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In addition, in recent years, the stock market in general has experienced extreme price and volume fluctuations as a result of general economic instability and recession. This volatility has had a significant effect on the market price of securities issued by many companies, including volatility resulting from reasons unrelated to their performance. These broad market fluctuations may adversely affect our stock price, notwithstanding our future operating results. We expect that the market price of our common stock will continue to fluctuate, and there can be no assurance about the levels of the market prices for our common stock. 

There is a limited trading market for our common shares, and you may not be able to resell your shares at or above the price you paid for them. 

Although our common shares are listed for trading on the NASDAQ Global Select Market, the trading in our common shares has less liquidity than many other companies quoted on the NASDAQ Global Select Market. A public trading market having the desired characteristics of depth, liquidity, and orderliness depends on the presence in the market of willing buyers and sellers for our common shares at any given time. This presence depends on the individual decisions of investors and general economic and market conditions over which we have no control. We cannot assure you that the volume of trading in our common shares will increase in the future. Additionally, general market forces may have a negative effect on our stock price, independent of factors affecting our stock specifically. 

Future issuances or sales of our common stock or other securities may dilute the value of our common stock.

In many situations, our board of directors has the authority, without any vote of our shareholders, to issue shares of our authorized but unissued stock, including shares authorized and unissued under our 2008 Stock Based Award Plan.  Though currently prohibited by the Merger Agreement, if the Merger is not completed in the future, we may issue additional securities, through public or private offerings, in order to raise additional capital. Any such issuance would dilute the percentage of ownership interest of existing shareholders and may dilute the per share book value of the common stock or reduce the market price for our common stock. 

The sale, or availability for sale, of a substantial number of shares of common stock in the public market could adversely affect the price of our common stock and could impair our ability to raise additional capital through the sale of equity securities.

Our ability to pay dividends is limited by law, contract, and banking agency discretion. 

In January 2014, our board of directors reinstated quarterly common stock dividends with their approval of a quarterly cash dividend of $0.04 per share. This was the first time dividends on our common stock had been declared since 2009. In January 2015, our board of directors increased our quarterly cash dividend from $0.04 per share to $0.06 per share, and in January 2016, our board of directors increased our quarterly cash dividend from $0.06 per share to $0.08 per share.

Our ability to pay dividends to our shareholders depends on our receipt of dividends from Bank SNB.  The amount of dividends Bank SNB may pay to us is limited by state and federal laws and regulations.We also may decide to limit the payment of dividends even when we have the legal ability to pay them in order to retain earnings for use in our business. For information regarding our ability to pay dividends, see the Notes to the Consolidated Financial Statements in this report, “Note 16 Capital Requirements and Regulatory Matters”.

Our ability to increase or pay dividends to our shareholders is limited by covenants included in the Merger Agreement.

Our ability to pay dividends to our shareholders is further limited because the Federal Reserve has the power to prohibit payment of dividends by bank holding companies if their actions constitute unsafe or unsound practices. The Federal Reserve has issued a policy statement on the payment of cash dividends by financial holding companies, which expresses the Federal Reserve's view that a financial holding company should pay cash dividends only to the extent that the company's net income for the past year is sufficient to cover both the cash dividends and a rate of earnings retention that is consistent with the company's capital needs, asset quality, and overall financial condition.

19

Restrictions on unfriendly acquisitions could prevent a takeover. 

Our certificate of incorporation and bylaws contain provisions that could discourage takeover attempts that are not approved by our board of directors. The Oklahoma General Corporation Act includes provisions that make our acquisition more difficult. These provisions may prevent a future takeover attempt in which our shareholders otherwise might receive a substantial premium for their shares over then-current market prices. These provisions include supermajority provisions for the approval of certain business combinations and certain provisions relating to meetings of shareholders. Our certificate of incorporation also authorizes the issuance of additional shares without shareholder approval on terms or in circumstances that could deter a future takeover attempt. 

ITEM 1B.  UNRESOLVED STAFF COMMENTS

NONE.

ITEM 2.  Properties

The locations of Southwest and its banking subsidiary are shown below:

Southwest Bancorp, Inc. Location Corporate Headquarters
608 S. Main Street P.O. Box 1988 www.oksb.com	Stillwater, Oklahoma 74076	405-742-1800
Bank SNB Locations
Corporate Headquarters and Branch 608 S. Main Street P.O. Box 1988 www.banksnb.com	Stillwater, Oklahoma 74076	405-372-2230
Drive-in Facility and Branch 308 S. Main Street P.O. Box 1988	Stillwater, Oklahoma 74076	405-372-2230
Operations Center 1624 Cimarron Plaza P.O. Box 1988	Stillwater, Oklahoma 74076	405-372-2230
19th & Sangre Branch 1908 S. Sangre P.O. Box 1988	Stillwater, Oklahoma 74074	405-372-2230

OSU Campus Branch 1102 W. Hall of Fame Avenue P.O. Box 1988   OSU-Student Union Branch Student Union, Room 056 P.O. Box 1988 Stillwater, Oklahoma 74076       Stillwater, Oklahoma 74076 405-372-2230       405-744-5962

20

Waterford Branch 6301 Waterford Boulevard Suite 101 & 102	Oklahoma City, Oklahoma 73118	405-427-4000
OKC – South Penn Branch 9921 S. Pennsylvania Ave. OUHSC–  OKC Branch 1106 N. Stonewall OKC–Classen Branch 2523 N. Classen Blvd. OKC  –Capitol Hill Branch 3131 S. Shields Blvd. OKC–Memorial Branch 3805 W. Memorial Rd. OKC–Rockwell Branch 7308 N.W. Expressway	Oklahoma City, Oklahoma 73159 Oklahoma City, Oklahoma 73117 Oklahoma City, Oklahoma 73106 Oklahoma City, Oklahoma 73129 Oklahoma City, Oklahoma 73134 Oklahoma City, Oklahoma 73132	405-427-4000 405-271-3113 405-844-0110 405-844-0110 405-844-0110 405-844-0110
Edmond Spring Creek Branch 1440 S. Bryant Avenue	Edmond, Oklahoma 73034	405-427-4000
Edmond Branch 1601 S. Kelly	Edmond, Oklahoma 73013	405-844-0110
Chickasha Branch 500 W. Grand Avenue	Chickasha, Oklahoma 73018	405-427-3100
Tulsa Utica Branch 1500 S. Utica Avenue P.O. Box 521500	Tulsa, Oklahoma 74152	918-523-3600
Tulsa 61st Branch 2431 E. 61st Suite 170 P.O. Box 521500	Tulsa, Oklahoma 74152	918-523-3600
Tilden Branch 205 Elm Street P.O. Box 299	Tilden, Texas 78072	361-274-3391
Preston Center Branch 5950 Berkshire Lane Suite 150 and 350	Dallas, Texas 75225	972-624-2900
Austin Branch 3001 Palm Way Suite 108	Austin, Texas 78758	512-314-6700

21

San Antonio Medical Hill Branch 9324 Huebner Road San Antonio Pyramid Branch 601 N.W. Loop 410 Suite 230	San Antonio, Texas 78240 San Antonio, Texas 78216	210-442-6100 210-442-6101
Hutchinson Branch 100 East 30th Avenue P.O. Box 1707 South Hutchinson Branch 524 N. Main Street P.O. Box 1707 Wichita – East Branch 8415 E. 21st Street North Suite 150 Wichita – West Branch 10111 W. 21st Street North Denver – Englewood Branch 3531 S. Logan Street Suite A Denver - Highlands Ranch Branch 9131 S. Broadway Suite 500 Denver - Lone Tree Branch 10457 Park Meadows Drive Suite 300 Denver - industry 3001 Brighton Blvd. Suite 718	Hutchinson, Kansas 67502 South Hutchinson, Kansas 67505 Wichita, Kansas 67206 Wichita, Kansas 67205 Englewood, Colorado 80113 Highlands Ranch, Colorado 80129 Lone Tree, Colorado 80124 Denver, Colorado 80216	620-728-3000 620-728-3000 316-315-1600 316-315-1600 303-761-7500 720-344-0953 303-706-1723 303-754-5385

ITEM 3.  LEGAL PROCEEDINGS

On March 18, 2011, an action entitled Ubaldi, et al. v SLM Corporation (“Sallie Mae”), et al., Case No. 3:11-cv-01320 EDL (the “Ubaldi Case”) was filed in the U.S. District Court for the Northern District of California as a putative class action with respect to certain loans that the plaintiffs claim were made by Sallie Mae. The loans in question were made by various banks, including Bank SNB, and sold to Sallie Mae. Plaintiffs claim that Sallie Mae entered into arrangements with chartered banks in order to evade California law and that Sallie Mae is the de facto lender on the loans in question and, as the lender on such loan, Sallie Mae charged interest and late fees that violates California usury law and the California Business and Professions Code. Sallie Mae has denied all claims asserted against it and has stated that it intends to vigorously defend the action. On March 26, 2014, the Court denied the plaintiffs’ request to certify the class; however, the Court permitted the plaintiffs to amend the filing to redefine the class. Plaintiffs filed a renewed motion on June 23, 2014. On December 19, 2014, the Court issued a decision on the renewed motion, certifying a class with respect to claims of improper late fees, but denying class certification with respect to plaintiffs’ usury claims. Plaintiffs thereafter filed a motion seeking leave to amend their complaint to add additional parties, which Sallie Mae opposed, and, on March 24, 2015, the Court denied the plaintiffs’ motion. On June 5, 2015, the law firm Cohen Milstein Sellers & Toll based in Washington, D.C. entered its appearance as co-counsel on behalf of plaintiffs.

22

Bank SNB is not specifically named in the action. However, in the first quarter of 2014, Sallie Mae provided Bank SNB with a notice of claims that have been asserted against Sallie Mae in the Ubaldi Case (the “Notice”). Sallie Mae asserts in the Notice that Bank SNB may have indemnification and/or repurchase obligations pursuant to the ExportSS Agreement dated July 1, 2002 between Sallie Mae and Bank SNB, pursuant to which the loans in question were made by Bank SNB. Bank SNB has substantial defenses with respect to any claim for indemnification or repurchase ultimately made by Sallie Mae, if any, and intends to vigorously defend against any such claims.

In the normal course of business, we are at all times subject to various pending and threatened legal actions. The relief or damages sought in some of these actions may be substantial. After reviewing pending and threatened actions with counsel, management currently does not expect that the outcome of such actions will have a material adverse effect on our financial position; however, we are not able to predict whether the outcome of such actions may or may not have a material adverse effect on results of operations in a particular future period as the timing and amount of any resolution of such actions and relationship to the future results of operations are not known.

ITEM 4.  MINE SAFETY DISCLOSURES

Not applicable.

23

Part II

ITEM 5.  MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Stock Listing

Common shares of Southwest Bancorp, Inc. are traded on NASDAQ Global Select Market under the symbol OKSB.

Transfer Agents and Registrars

For Southwest Bancorp, Inc.:

Computershare Investor Services, LLC

2 North LaSalle St.

Chicago, IL 60602

Recent Stock Prices, Dividends, and Equity Compensation Plan Information

Our board of directors decides whether or not to pay dividends on common stock, and the amount of any such dividends, each quarter. In making its decisions on dividends, the board of directors considers operating results, financial condition, capital adequacy, regulatory requirements, shareholder returns, and other factors.Our abilityto pay dividends depends upon regulatory approval and cash resources, which include dividend payments from Bank SNB.For information regarding the ability of Bank SNB to pay dividends to us and the restrictions on bank dividends under federal banking laws, see “Note 16:Capital Requirements & Regulatory Matters” in the Notes to the Consolidated Financial Statements, “Dividend Restrictions”  on page47of this report, and “Risk Factors” on page13of this report.

As shown on the table below, common shareholders received quarterly cash dividends of $0.08 per share in 2016 and $0.06 per share in 2015.In January 2017, our board of directors approved a quarterly cash dividend of $0.08 per share.

As of March  1, 2017, there were approximately 480 holders of record of our common stock. The following table sets forth the common stock dividends declared for each quarter during 2016 and 2015, and the range of high and low closing trade prices for the common stock for those periods.

	2016						2015
					Dividend						Dividend
	High		Low		Declared		High		Low		Declared
For the Quarter Ending:
March 31	$	17.31	$	14.00	$	0.08	$	17.96	$	15.08	$	0.06
June 30		17.36		14.46		0.08		18.97		16.81		0.06
September 30		19.97		16.47		0.08		19.00		15.53		0.06
December 31		29.70		17.07		0.08		18.98		15.90		0.06

Repurchases under the repurchase program authorized by our Board of Directors (the “Board”) are available at the discretion of management based upon market, business, legal, and other factors.We repurchased 867,310 shares under the 2014 program for a total of $14.3 million. As of December 31, 2015, we had repurchased 254,248 shares under the 2015 program for a total of $4.4 million. During 2016, we repurchased 1,398,026 shares for a total of $22.1 million, and since August 2014, we have repurchased a total of 2,519,584 shares for a total of $40.8 million.Our ability to repurchase our common stock is limited during the time that the Merger is pending. No repurchases were made in the fourth quarter of 2016. For information regarding our most recently authorized program by the Board, see “Management’s Discussion and Analysis – Significant Developments” on page 30of this report.

24

Stock Performance

The following table compares the cumulative total return on a hypothetical investment of $100 in our common stock at the closing price on December 31, 2011 through December 31, 2016, with the hypothetical cumulative total return on the NASDAQ Stock Market Index (U.S. Companies) and the NASDAQ Bank Index for the comparable period. 

	Period Ending
Index	12/31/2011	12/31/2012	12/31/2013	12/31/2014	12/31/2015	12/31/2016
Southwest Bancorp, Inc.	100.00	187.92	267.11	294.03	300.29	507.57
NASDAQ Bank Index	100.00	118.69	168.21	176.48	192.08	265.02
NASDAQ Total U.S.	100.00	117.45	164.57	188.84	201.98	219.89
SNL U.S. Bank NASDAQ	100.00	119.19	171.31	177.42	191.53	265.56

Equity Compensation Plan Information

The following table presents disclosure regarding equity compensation plans in existence at December 31, 2016, consisting of our 2008 Stock Based Award Plan, which was approved by our shareholders.

Plan category	Number of securities to be issued upon exercise of outstanding options, warrants and rights (a)	Weighted average exercise price of outstanding options, warrants and rights (b)	Number of securities available for future issuance under equity compensation plans excluding securities reflected in column (a) (c)
Plan approved by shareholders	0	N/A	174,730
Total	0	N/A	174,730

25

ITEM 6.  Selected Financial Data

The following table presents our selected consolidated financial data for each of the five years in the period ended December 31, 2016. The selected consolidated financial data should be read in conjunction with our Consolidated Financial Statements, including the accompanying Notes to the Consolidated Financial Statements, presented elsewhere in this report.

	For the Year Ended December 31,
(Dollars in thousands, except per share data)	2016			2015			2014			2013			2012
Operations Data
Interest income	$	89,140		$	74,483		$	71,792		$	73,914		$	93,171
Interest expense		9,697			7,066			6,788			11,264			16,608
Net interest income		79,443			67,417			65,004			62,650			76,563
Provision (credit) for loan losses		4,769			(3,566)			(6,624)			(7,209)			3,107
Gain on sales of mortgage loans and securities, net		2,966			2,341			3,433			2,649			3,970
Gain on sale of bank branches, net		-			-			4,378			-			-
Noninterest income		13,119			12,116			11,120			10,994			11,966
Noninterest expense		63,246			58,240			56,912			55,311			63,322
Income before taxes		27,513			27,200			33,647			28,191			26,070
Taxes on income		9,809			9,793			12,617			10,756			9,883
Net income	$	17,704		$	17,407		$	21,030		$	17,435		$	16,187
Net income available
to common shareholders	$	17,704		$	17,407		$	21,030		$	17,435		$	12,446
Dividends
Preferred stock - declared (1)	$	-		$	-		$	-		$	-		$	4,405
Common stock - declared		6,107			4,623			3,131			-			-
Ratio of total dividends to net income		34.49	%		26.56	%		14.89	%		-	%		13.56	%
Per Common Share Data
Basic earnings	$	0.93		$	0.90		$	1.07		$	0.89		$	0.64
Diluted earnings		0.92			0.90			1.06			0.88			0.64
Cash dividends		0.32			0.24			0.16			-			-
Book value (2)		15.35			14.80			14.11			13.13			12.60
Weighted average common shares outstanding:
Basic, net of unvested restricted stock		18,660,951			18,975,450			19,417,486			19,516,776			19,293,598
Diluted, net of unvested restricted stock		18,866,867			19,123,509			19,560,363			19,604,245			19,416,090
Financial Condition Data (2)
Investment securities	$	436,661		$	412,128		$	365,593		$	394,199		$	377,112
Portfolio loans (3)		1,872,746			1,771,976			1,398,506			1,267,843			1,347,053
Loans held for sale (3)		4,386			7,453			1,485			3,060			31,682
Total loans (3) (4)		1,877,132			1,779,429			1,399,991			1,270,903			1,378,735
Interest-earning assets		2,367,239			2,255,098			1,894,259			1,925,019			2,007,412
Total assets		2,475,392			2,357,022			1,942,034			1,981,423			2,122,255
Interest-bearing deposits		1,394,309			1,287,611			1,037,871			1,139,290			1,285,570
Total deposits		1,946,018			1,884,105			1,533,999			1,584,086			1,709,578
Other borrowings		183,814			110,927			79,380			80,632			70,362
Subordinated debentures		46,393			51,548			46,393			46,393			81,963
Total shareholders' equity (5)		286,629			296,098			270,786			259,187			246,056
Common shareholders' equity		286,629			296,098			270,786			259,187			246,056
Financial Ratios
Return on average assets		0.74	%		0.84	%		1.09	%		0.86	%		0.72	%
Return on average total shareholders' equity		6.18			6.23			7.82			6.90			5.71
Return on average common equity		6.18			6.23			7.82			6.90			5.14
Net interest margin		3.46			3.35			3.45			3.19			3.64
Efficiency ratio (6)		65.88			70.67			67.80			72.50			68.46
Average assets per employee (7)	$	6,209		$	5,048		$	5,381		$	5,048		$	5,317

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Selected Financial Data (Continued)

	At December 31,
(Dollars in thousands, except per share data)	2016			2015			2014			2013			2012
Asset Quality
Net loan charge-offs (recoveries) (2)	$	3,329		$	(1,220)		$	1,587		$	2,846		$	1,073
Net loan charge-offs (recoveries) to average portfolio loans		0.18	%		(0.08)	%		0.12	%		0.22	%		0.07	%
Allowance for loan losses (2)	$	27,546		$	26,106		$	28,452		$	36,663		$	46,718
Allowance for loan losses to portfolio loans		1.47	%		1.47	%		2.03	%		2.89	%		3.47	%
Nonperforming loans (2) (8)	$	16,610		$	20,358		$	9,413		$	19,872		$	41,989
Nonperforming loans to portfolio loans		0.89	%		1.15	%		0.67	%		1.57	%		3.12	%
Allowance for loan losses to nonperforming loans		165.84			128.23			302.26			184.50			111.26
Nonperforming assets (2) (9)	$	16,960		$	22,632		$	12,510		$	22,526		$	56,947
Nonperforming assets to portfolio loans and
other real estate		0.91	%		1.28	%		0.89	%		1.77	%		4.18	%
Capital Ratios
Average shareholders' equity to average assets
Total		11.92	%		13.43	%		13.93	%		12.45	%		12.64	%
Common		11.92			13.43			13.93			12.45			10.80
Tier I capital to risk-weighted assets (2)		14.40			15.53			19.70			20.28			20.28
Total capital to risk-weighted assets (2)		15.66			16.79			20.96			21.59			21.56
Leverage ratio		13.02			14.41			16.45			14.86			15.01

(1)  Preferred stock - declared and paid includes a one-time non-cash equity charge of $1.2 million for 2012 to reflect the accelerated accretion of the remaining discount on the Series B Preferred securities repurchased in August of 2012. 

(2)  At period end. 

(3)  Net of unearned discounts but before deduction of allowance for loan losses.

(4)  Total loans include loans held for sale.

(5)  Reflects the repurchase of preferred securities in 2012. Please see “Capital Resources” on page 45 and “Note 14:Shareholders’ Equity” in the Notes to the Consolidated Financial Statements.

(6)  The efficiency ratio = noninterest expenses / (net interest income + total noninterest income) as shown on the Consolidated Statements of Operations. 

(7)  Ratio = average assets for year divided by the number of full-time equivalent employees at year-end.

(8)  Nonperforming loans consist of nonaccrual loans, loans contractually past due 90 days or more, and restructured loans not performing in accordance with restructured terms.

(9)  Nonperforming assets consist of nonperforming loans and other real estate.

	For the Quarter Ended
(Dollars in thousands, except per share data)	12-31-16		09-30-16		06-30-16		03-31-16
Operations Data
Interest income	$	22,738	$	22,310	$	22,044	$	22,048
Interest expense		2,635		2,505		2,349		2,208
Net interest income		20,103		19,805		19,695		19,840
Provision (credit) for loan losses		(1,329)		1,713		10		4,375
Gain on sales of securities and mortgage loans		774		778		887		527
Noninterest income		3,470		3,777		2,984		2,888
Noninterest expenses		15,826		16,156		15,268		15,996
Income before taxes		9,850		6,491		8,288		2,884
Taxes on income		3,682		2,236		2,876		1,015
Net income	$	6,168	$	4,255	$	5,412	$	1,869
Per Share Data
Basic earnings per common share	$	0.33	$	0.23	$	0.29	$	0.10
Diluted earnings per common share		0.33		0.23		0.28		0.10
Cash dividends		0.08		0.08		0.08		0.08
Weighted Average Common Shares Outstanding
Basic		18,335,116		18,288,927		18,574,300		19,257,445
Diluted		18,551,005		18,545,614		18,677,912		19,267,473

27

	For the Quarter Ended
(Dollars in thousands, except per share data)	12-31-15		09-30-15		06-30-15		03-31-15
Operations Data
Interest income	$	21,584	$	18,220	$	17,455	$	17,224
Interest expense		2,064		1,724		1,664		1,614
Net interest income		19,520		16,496		15,791		15,610
Provision (credit) for loan losses		(566)		23		(1,136)		(1,887)
Gain on sale of bank branches, net		-		-		-		-
Gain on sales of securities and mortgage loans		645		584		759		353
Noninterest income		3,534		3,445		2,650		2,487
Noninterest expenses		17,099		14,077		13,982		13,082
Income before taxes		7,166		6,425		6,354		7,255
Taxes on income		2,577		2,303		2,193		2,720
Net income	$	4,589	$	4,122	$	4,161	$	4,535
Per Share Data
Basic earnings per common share	$	0.23	$	0.22	$	0.22	$	0.24
Diluted earnings per common share		0.23		0.22		0.22		0.24
Cash dividends		0.06		0.06		0.06		0.06
Weighted Average Common Shares Outstanding
Basic		19,686,860		18,670,407		18,666,853		18,760,648
Diluted		19,866,477		18,846,561		18,863,977		18,934,175

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item 7.  Management’s Discussion and Analysis of Financial Condition and Results of Operations

The purpose of this discussion and analysis is to provide an understanding of our financial results and condition through the eyes of management for the year ended December 31, 2016. This report should be read in conjunction with our Consolidated Financial Statements including the notes thereto, and the other financial information appearing elsewhere in this report.

Executive Summary

We are a financial holding company for Bank SNB, an Oklahoma state banking corporation, which has been providing banking services since 1894. Through Bank SNB, we have thirty banking centers primarily located along the heavily populated areas on the I-35 corridor through Texas, Oklahoma, Kansas, and Colorado. We focus on providing customers with exceptional service and meeting all of their banking needs by offering a wide variety of commercial and retail financial services, including commercial and consumer lending, deposit and investment services, specialized cash management, and other financial services and products.

On December 14, 2016, we entered into a Merger Agreement with Simmons, an Arkansas corporation, pursuant to which, and subject to its terms and conditions, Simmons will acquire all of our outstanding capital stock for $95.0 million in cash and 7,250,000 shares of Simmons’s common stock, representing an aggregate Merger consideration of approximately $564.4 million (based on Simmons’ common stock closing price as of December 13, 2016), subject to potential adjustments.  

Our business operations are conducted through four operating segments that include Oklahoma Banking, Texas Banking, Kansas Banking, and Other Operations. Due to its size and management structure, Colorado Banking operations are included within our Oklahoma Banking segment.

Business Strategy

Our bank has and will continue to position itself for future growth. We seek to produce consistent and sustainable revenue growth by enhancing, clarifying, and expanding our geographic markets and increasing and diversifying our revenue base. This consists of, but is not limited to: building out existing markets with robust and profitable growth potential; expanding our professional team; and identifying, targeting, and acquiring earning assets under appropriate risk guidelines. We are focused on consummating the Merger with Simmons and will be conducting our operations with the intent to satisfy all of the covenants and conditions to closing contained in the Merger Agreement.

We also seek to provide customers with exceptional service while, at the same time, improving operating efficiency. Over many years, we have refined our approach to customer service by listening to our customers’ needs and desires. We actively seek to make the customer experience consistent over time and across all of our locations. We improve operating efficiency by focusing on internal policy, process and procedure, along with technology, with the goal of continuous improvement while providing an exceptional experience to our clients. We build close relationships with businesses and their principals, business professionals and individuals by providing personalized financial solutions that give them more control over their financial futures. We also apply a philosophy of continuous improvement to internal and external information reporting to improve our decision making processes and product delivery.   

Another major component of our strategy is to be an employer of choice in our markets. We aim to employ talented and devoted people who embrace our vision and feel invested in our success. As of December 31, 2016, we employed 387 people on a full-time equivalent basis, including executive officers, loan and other banking officers, branch personnel, and others.

Industry Focus

Our area of expertise focuses on the special financial needs of healthcare and health professionals, commercial real estate borrowers, businesses and their managers and owners, commercial lending, and energy banking. The healthcare and real estate industries make up the majority of our loan and deposit portfolio.

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Our tactical focus on healthcare lending was established in 1974. We provide credit and other 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 December 31, 2016, $423.8 million, or approximately  23%, of our loans were loans to individuals and businesses in the healthcare industry. We conduct regular market reviews of current and potential healthcare lending business and make determinations with respect to the appropriate concentrations within healthcare based upon economic and regulatory conditions.

As of December 31, 2016, $608.6 million, or approximately 32%, of our loans were real estate industry loans. Economic factors that affect commercial real estate values include job growth, corporate profits, and business expansion. The unemployment rate, uncertainty over government regulation and fiscal policy, the rising cost of debt capital, and depressed oil and gas prices are all industry risk factors.

As of December 31, 2016, approximately  3% of our loan portfoliowas to customers in the oil and gas industry. As of December 31, 2016,  our exposure continues to be focused on production based companies and servicing companies, representing 70% and 30%, respectively, of our energy portfolio. If oil prices return to lower levels for an extended period, we could experience weaker energy loan demand and increased losses within our energy portfolio. Furthermore, a prolonged period of low or stagnant oil prices could have a negative impact on the economies of energy-dominant states such as Oklahoma and Texas. As a result, low oil prices could have an adverse effect on our business, financial condition and results of operation.We have the ability to adjust the borrowing base on outstanding commitments based on market price and condition.

Economic Overview

2016 began with signs of deteriorating economic conditions in the United States and abroad but ended with increased optimism for the U.S. economy and the second federal funds rate increase in ten years. While the U.S. economy generally showed signs of improvement throughout the year, albeit at an uneven pace, the year was defined by several key story lines including the drop in oil prices in the first quarter to the lowest level in over a decade. This added to pressures in the manufacturing sector that was already experiencing the effects of a strong U.S. dollar and the negative effect on export demand. With concerns of a global economic slowdown, Federal Reserve rate policy was a key focus for financial markets. In the first quarter of 2016, the market expectation of two Fed Funds rate increases during the year began to shift to the likelihood that there would be no rate increases in 2016. 

Another key influence on Fed policy and concerns of the resulting impact to the global economy was the July Brexit vote in the United Kingdom, where U.K. citizens voted to leave the European Union. Interest rates during this time declined with the 10-year treasury rate hitting an all-time low in mid-2016. The second half of 2016 saw increased optimism on the U.S. economy with consumer spending holding up, continued improvements in the labor market, a modest recovery in oil prices, and a calming of fears on the impact of the Brexit vote. There was also increased optimism for the U.S. economy after the U.S. presidential election and the anticipated impact of the fiscal and regulatory policies of the new administration. Equity markets ended the year with new all-time highs and interest rates were higher across the yield curve. 

In 2017, rates are expected to increase as inflation indicators continue to show signs of firming and the U.S. labor market approaches full employment. Concerns for the global economy persist from the potential impact of the Brexit vote as well as growth concerns in emerging markets that could have an impact on Fed policy, altering the consensus expectation for three Federal Funds rate hikes during the course of the year. The modest recovery in oil prices since the first quarter of 2016 could have a positive impact on the regional economy as the financial health of oil producers continues to improve, which is expected to result in increased capital budgets for some firms for the first time in several years.   

Significant Developments

On October 9, 2015, we completed the acquisition of First Commercial Bancshares, Inc. (“Bancshares” or “FCBI”) through the merger of Bancshares with and into us (the “Bancshares Merger”). The Bancshares Merger was consummated pursuant to the Agreement and Plan of Reorganization (the“Bancshares Merger Agreement”) dated as of May 27, 2015. The Bancshares Merger expanded our presence in the Oklahoma City metro area with five additional banking centers, increasing our total to ten. It also expanded our geographic footprint to Colorado with three full-service banking centers and one loan production office in Denver. We hired a market president and two commercial bankers to lead our newly

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established Denver banking efforts. 2016 was the first full year of operations of Bancshares to be included in our financial results.

On May 25, 2016, the Board authorized our fourth stock repurchase program since August 2014. The program authorized the repurchase of up to another 5.0%, or approximately 921,000 shares, of our outstanding common stock effective February 23, 2017, which was the original expiration date of the third program. During 2016, we repurchased 1,398,026 shares for a total of $22.1 million, and since August 2014, we have repurchased a total of 2,519,584 shares for a total of $40.8 million. Our ability to repurchase our common stock is limited during the time that the Merger is pending.

On December 14, 2016, we entered into a Merger Agreement with Simmons, an Arkansas corporation, pursuant to which, and subject to its terms and conditions, Simmons will acquire all of our outstanding capital stock for $95.0 million in cash and 7,250,000 shares of Simmons’s common stock, representing an aggregate Merger consideration of approximately $564.4 million (based on Simmons’ common stock closing price as of December 13, 2016), subject to potential adjustments.

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Results of Operations

Net income available to common shareholders totaled $17.7 million, or $0.92  diluted per common share, in 2016 compared to $17.4 million, or $0.90 diluted per common share, in 2015 and $21.0 million, or $1.06  diluted per common share, in 2014.

The following table presents components of consolidated net income and selected ratios for the years 2016, 2015, and 2014 and the annual changes between those years.

				2016 Change						2015 Change
(Dollars in thousands,	2016			From 2015			2015			From 2014			2014
except per share data)
Operations Data
Interest income	$	89,140		$	14,657		$	74,483		$	2,691		$	71,792
Interest expense		9,697			2,631			7,066			278			6,788
Net interest income		79,443			12,026			67,417			2,413			65,004
Provision (credit) for loan losses		4,769			8,335			(3,566)			3,058			(6,624)
Noninterest income		16,085			1,628			14,457			(4,474)			18,931
Noninterest expense		63,246			5,006			58,240			1,328			56,912
Income before taxes		27,513			313			27,200			(6,447)			33,647
Taxes on income		9,809			16			9,793			(2,824)			12,617
Net income	$	17,704		$	297		$	17,407		$	(3,623)		$	21,030
Net income available
to common shareholders	$	17,704		$	297		$	17,407		$	(3,623)		$	21,030
Per Common Share Data
Basic earnings	$	0.93		$	0.03		$	0.90		$	(0.17)		$	1.07
Diluted earnings		0.92			0.02			0.90			(0.16)			1.06
Financial Condition Data
- Averages
Investment securities	$	424,501		$	39,756		$	384,745		$	4,821		$	379,924
Total loans		1,822,288			302,558			1,519,730			185,407			1,334,323
Interest-earning assets		2,296,727			285,666			2,011,061			126,251			1,884,810
Total assets		2,402,907			323,165			2,079,742			148,038			1,931,704
Interest-bearing deposits		1,356,431			213,259			1,143,172			69,571			1,073,601
Total deposits		1,910,940			243,743			1,667,197			144,544			1,522,653
Other borrowings		143,399			70,861			72,538			(10,427)			82,965
Subordinated debentures		46,928			(637)			47,565			1,172			46,393
Total shareholders' equity		286,520			7,295			279,225			10,144			269,081
Selected Ratios
Return on average assets		0.74	%		(0.10)	%		0.84	%		(0.25)	%		1.09	%
Return on average total
shareholders' equity		6.18			(0.05)			6.23			(1.59)			7.82
Return on average common equity		6.18			(0.05)			6.23			(1.59)			7.82
Net interest margin		3.46			0.11			3.35			(0.10)			3.45

Net income available to common shareholders for 2016 increased $0.3 million compared to 2015. The increase is the result of a $12.0 million increase in net interest income and a $1.6 million increase in noninterest income, offset in part by an $8.3 million increase in the provision for loan losses and a $5.0 million increase in noninterest expense due to increased personnel, occupancy, and general and administrative expenses. The increases in net interest income, noninterest income, and noninterest expense are due in part to the Bancshares acquisition that occurred in the fourth quarter of 2015. Net income for the year ended December 31, 2016, was also reduced by the restructuring charges of $0.4 million, which occurred in the third quarter of 2016, and by $0.9 million of legal and consulting fees associated with the recently announced Merger Agreement with Simmons, which was entered into in the fourth quarter of 2016.

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Net income available to common shareholders for 2015 decreased $3.6 million compared to 2014. The decrease was primarily the result of a $3.1 million decrease in the credit provision for loan losses, a $4.5 million decrease in noninterest income, which is primarily due to the pre-tax net gain of $4.4 million on the sales of community bank branches in the second quarter of 2014, and a $1.3 million increase in noninterest expense, offset in part by a $2.4 million increase in net interest income and a $2.8 million decrease in income tax. For 2015, Bancshares contributed $1.1 million of net income, which was offset by deal costs of $1.2 million, net of tax.

Details of the changes in various components of net income are further discussed below.

Net Interest Income

Net interest income is the difference between interest income on earning assets, such as loans and investment securities, and interest expense on interest-bearing liabilities, such as deposits and borrowings, which are used to fund those assets. Net interest income is our largest source of revenue representing 83% of total revenue in 2016. Net interest margin is net interest income as a percentage of average earning assets for the period. Net interest income and net interest margin increase or decrease as a result of changes in the levels of interest rates, the volume and the mix of earning assets and interest-bearing liabilities, and the percentage of interest-earning assets funded by noninterest-bearing funding sources.

Changes in monetary policy by the Federal Reserve Bank include making changes in the target Federal Funds rate. These changes influence other market interest rates such as the deposit and loan rates offered by many financial institutions. The Prime Rate, which is used to set the interest rate on a significant portion of our loan portfolio, increased from 3.50% to 3.75% as a result of changes in the target Federal Funds rate in December 2016. Our loan portfolio is also affected to a lesser extent by changes in the London Interbank Offered Rate (“LIBOR”). The one-month and three-month U.S. dollar LIBOR rates, respectively, were 0.77% and 1.00% at December 31, 2016 and 0.17% and 0.26% at December 31, 2015. 

The intended federal funds rate, which is the cost of immediately available overnight funds, fluctuates in a similar manner to the prime interest rate. It had been at or below 0.25% since 2008 but was increased to 0.50% on December 17, 2015 and to 0.75% on December 15, 2016.

Net interest income for 2016 was $79.4 million, an increase of $12.0 million, or 18%, from the $67.4 million earned in 2015. Net interest margin was 3.46% for the year ended December 31, 2016, anincrease of 11 basis points from 2015. Interest income for 2016 and for 2015 includes $1.1 million and $0.6 million, respectively, of accelerated discount accretion.Net interest income for 2015 was $67.4 million, an increase of $2.4 million, or 4%, from the $65.0 million earned in 2014. Net interest margin was 3.35% for the year ended December 31, 2015, adecrease of 10 basis points from 2014.  Included in interest income for 2015 was $0.3 million due to accelerated discount accretion attributable to the acquisition of Bancshares. Included in interest income for 2014 was $0.8 million due to accelerated discount accretion attributable to the sale of loans covered by loss share agreements and $0.8 million due to interest recovery on nonaccrual loans.

Interest rate spread, which represents the difference between the rate earned on interest-earning assets and the rate paid on interest-bearing liabilities, was 3.25%  for 2016, compared to 3.14% for 2015, and 3.25% for 2014. 

We have seen growth in noninterest-bearing deposit accounts, which are a core funding source together with our interest-bearing deposits and qualified other borrowings. The average balance of noninterest-bearing deposit accounts increased to $554.5 million in 2016 from $524.0 million in 2015 and $449.1 million in 2014.

For further analysis of asset sensitivity please see tables showing the effects of changes in interest rates and changes in volume of interest related assets and liabilities on page 35 of this report and the discussion of Quantitative and Qualitative Disclosures about Market Risk on page 49 of this report.

The following table provides information relating to our average Consolidated Statements of Financial Condition and reflects the interest income on interest-earning assets, interest expense of interest-bearing liabilities, and the average yields earned and rates paid for the periods indicated. Yields and rates are derived by dividing income or expense reflected in our Consolidated Statements of Operations by the average daily balance of the related assets or liabilities, respectively, for the periods presented. Nonaccrual loans have been included in the average balances of total loans.

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The changes in the composition of interest-earning assets and their funding sources reflect market demand and management’s efforts to maximize net interest margin while controlling interest rate, credit, and other risks.

Consolidated Average Balances, Yields and Rates

	For the twelve months ended December 31,
	2016							2015							2014
	Average					Average		Average					Average		Average					Average
(Dollars in thousands)	Balance			Interest		Yield/Rate		Balance			Interest		Yield/Rate		Balance			Interest		Yield/Rate
Assets
Loans (1) (2)	$	1,822,288		$	81,527	4.47	%	$	1,519,730		$	67,644	4.45	%	$	1,334,323		$	64,224	4.81	%
Investment securities		424,501			7,407	1.74			384,745			6,559	1.70			379,924			7,146	1.88
Other interest-earning assets		49,938			206	0.41			106,587			280	0.26			170,563			422	0.25
Total interest-earning assets		2,296,727			89,140	3.88			2,011,062			74,483	3.70			1,884,810			71,792	3.81
Other assets		106,180							68,680							46,894
Total assets	$	2,402,907						$	2,079,742						$	1,931,704
Liabilities and shareholders' equity
Interest-bearing demand deposits	$	156,086		$	243	0.16	%	$	134,381		$	153	0.11	%	$	121,976		$	146	0.12	%
Money market accounts		549,691			1,391	0.25			499,788			829	0.17			440,658			620	0.14
Savings accounts		55,118			74	0.13			39,456			44	0.11			38,147			38	0.10
Time deposits		595,536			4,260	0.72			469,547			2,772	0.59			472,820			2,851	0.60
Total interest-bearing deposits		1,356,431			5,968	0.44			1,143,172			3,798	0.33			1,073,601			3,655	0.34
Other borrowings		143,399			1,379	0.96			72,538			984	1.36			82,965			900	1.08
Subordinated debentures		46,928			2,350	5.01			47,565			2,284	4.80			46,393			2,233	4.81
Total interest-bearing liabilities		1,546,758			9,697	0.63			1,263,275			7,066	0.56			1,202,959			6,788	0.56
Noninterest-bearing demand deposits		554,509							524,025							449,052
Other liabilities		15,120							13,217							10,612
Shareholders' equity		286,520							279,225							269,081
Total liabilities and shareholders' equity	$	2,402,907						$	2,079,742						$	1,931,704
Net interest income and interest rate spread				$	79,443	3.25	%				$	67,417	3.14	%				$	65,004	3.25	%
Net interest margin (3)						3.46	%						3.35	%						3.45	%
Ratio of average interest-earning assets
to average interest-bearing liabilities		148.49	%						159.19	%						156.68	%
(1) Yields, interest rate spreads, and net interest margins are calculated using income recorded in accordance with GAAP.
(2) Fees included in interest income on loans receivable are not considered material.
(3) Net interest margin = net interest income / total average interest-earning assets.

The following table analyzes our changes in interest income and interest expense for the periods indicated. Information is provided on changes attributable to (i) changes in volume (changes in volume multiplied by prior period’s rate); and (ii) changes in rates (changes in rate multiplied by prior period’s volume). Changes in rate-volume (changes in rate multiplied by changes in volume) are allocated between changes in rate and changes in volume in proportion to the relative contribution of each.

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Effect of Volume and Rate Changes on Net Interest Income

(Dollars in thousands)	2016 vs. 2015						2015 vs. 2014
	Increase		Due to Change				Increase		Due to Change
	Or		In Average:				Or		In Average:
	(Decrease)		Volume		Rate		(Decrease)		Volume		Rate
Interest earned on:
Loans receivable (1) (2)	$	13,883	$	13,534	$	349	$	3,420	$	8,488	$	(5,068)
Investment securities (2)		848		691		157		(587)		90		(677)
Other interest-earning assets		(74)		(192)		118		(142)		(167)		25
Total interest income		14,657		14,033		624		2,691		8,411		(5,720)
Interest paid on:
Interest-bearing demand		90		27		63		7		14		(7)
Money market accounts		561		90		471		210		90		120
Savings accounts		30		20		10		6		1		5
Time deposits		1,489		760		729		(80)		(18)		(62)
Other borrowings		395		746		(351)		84		(123)		207
Subordinated debentures		66		(31)		97		51		56		(5)
Total interest expense		2,631		1,612		1,019		278		20		258
Net interest income	$	12,026	$	12,421	$	(395)	$	2,413	$	8,391	$	(5,978)
(1) Average balances included nonaccrual loans. Fees included in interest income on loans receivable are not considered material.
(2) Interest on tax-exempt loans and securities is not shown on a tax-equivalent basis, because it is not considered material.

Provision for Loan Losses

The provision for loan losses is the amount that, based on our judgment, is required to maintain the allowance for loan losses at an appropriate level based upon the inherent risks in the loan portfolio. The amount of the loan loss provision for a period is based solely upon the amount needed to cause the allowance to reach the level deemed appropriate, after the effects of net charge-offs for the period. 

Net charge-offs were $3.3 million for the year ended December 31, 2016.  Net recoveries were$1.2 million for the year ended December 31, 2015. Net charge-offs were $1.6 million for the year ended December 31, 2014. The provisions for loan losses was $4.8 million for the year ended December 31, 2016, a credit of ($3.6) million for the year ended December 31, 2015, and a credit of ($6.6) million for the year ended December 31, 2014.  The provision for loan losses for 2016 was driven by the growth in the loan portfolio and the impact of low energy prices combined with deterioration in a few general business credits that occurred primarily in the first quarter of 2016. For the year ended December 31, 2016, recoveries were $3.7 million. For the years ended December 31, 2015and December 31, 2014, recoveries were $2.6 million and $5.3 million, respectively.

See the section captioned “Allowance for Loan Losses” on page43 of this report for further analysis of the provision for loan losses.

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Noninterest Income

Noninterest income was $16.1 million for 2016, an increase of $1.6 million, or 11%, from 2015. Noninterest income was $14.5 million for 2015, a decrease of $4.5 million, or 24%, when compared with 2014.

			2016 Change				2015 Change
(Dollars in thousands)	2016		From 2015		2015		From 2014		2014
Service charges and fees	$	10,558	$	563	$	9,995	$	(227)	$	10,222
Other noninterest income		2,561		440		2,121		1,223		898
Gain on sale of bank branches, net		-		-		-		(4,378)		4,378
Gain on sales of loans		2,672		493		2,179		630		1,549
Gain on sales/calls of investment securities		294		132		162		(1,722)		1,884
Total noninterest income	$	16,085	$	1,628	$	14,457	$	(4,474)	$	18,931

Service charges and fees – Service charges and fees increased $0.6 million, or 6%, in 2016 as a result of increased overdraft and interchange fees. Service charges and fees decreased $0.2 million, or 2%, in 2015 as a result of decreased overdraft service charges.

Other noninterest income – Other noninterest income includes BOLI income and interest rate swap fee income.  Other noninterest income in 2016 increased due to customer risk management interest rate swaps income and income from bank owned life insurance. Other noninterest income in 2015 increased primarily from customer risk management interest rate swaps income and income from bank owned life insurance that was purchased in the second quarter of 2015.

Gain on sale of bank branches – Gain on sale of bank branches consisted of $4.4 million recognized as the pre-tax net gain on sales of the community bank branches in the second quarter of 2014.

Gain on sales of loans – Gain on sales of loans includes the net gains recognized from the sale of mortgage loans that are classified as held for sale. For 2016 and 2015, the increases relate to increases in mortgage lending activity during the years.   

Gain on sales/calls of investment securities  –Gain on sales or calls of investment securities in 2016 increased $0.1 million due to a slight restructure of the investment portfolio during the year. Gain on sales or calls of investment securities in 2015 and 2014 was the result of the sale of a private equity investment and the gain on the sale of a stock investment that was acquired in a prior year repossession in 2014.

Noninterest Expense

Noninterest expense was $63.2 million for 2016, an increase of $5.0 million, or 9%, from 2015. Noninterest expense was $58.2 million for 2015, anincrease of $1.3 million, or 2%, from 2014. In 2015, noninterest expense included $3.1 million of expenses related to the acquisition of Bancshares.

			2016 Change				2015 Change
(Dollars in thousands)	2016		From 2015		2015		From 2014		2014
Salaries and employee benefits	$	37,724	$	2,874	$	34,850	$	3,020	$	31,830
Occupancy		11,059		1,700		9,359		166		9,193
Data processing		1,886		(292)		2,178		402		1,776
FDIC and other insurance		1,376		23		1,353		48		1,305
Other real estate, net		(222)		(383)		161		(433)		594
Provision for unfunded loan commitments		130		385		(255)		125		(380)
General and administrative		11,293		699		10,594		(2,000)		12,594
Total noninterest expense	$	63,246	$	5,006	$	58,240	$	1,328	$	56,912

Salaries and employee benefits – Salaries and employee benefits increased $2.9 million, or 8%, for 2016 from 2015 primarily due to an increase in the number of employees related to the acquisition of Bancshares and an increase in employee benefits costs and incentives, partially offset by a decrease in personnel near the end of the third quarter of 2016.

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Salaries and employee benefits increased $3.0 million, or 9%, for 2015  from 2014 primarily due to an increase in the number of employees related to the acquisition of Bancshares and an increase in employee benefits costs and incentives. The number of full-time equivalent employees decreased from 412 at the beginning of 2016 to 387 as of December 31, 2016. The number of full-time equivalent employees increased from 359 at the beginning of 2015 to 412 as of December 31, 2015. 

Occupancy – Occupancy expense increased $1.7 million, or 18%, in 2016primarily the result of rent expense due to the acquired branches from Bancshares as well as building maintenance/repairs expense. Occupancy expense increased $0.2 million, or 2%, in 2015 primarily due to building maintenance/repairs expense.

Data processing – Data processing decreased $0.3 million, or 13%, in 2016 and increased $0.4 million, or 23%, in 2015.  

FDIC and other insurance– Bank SNB pays deposit insurance premiums to the FDIC based on assessment rates. In 2016 and 2015, the increases in FDIC and other insurance are primarily the result of increases in average total assets and increases in the assessment rates.

Other real estate, net – The decrease of $0.4 million, or 238%, in other real estate expense for 2016 is primarily the result of gains on sales of properties, of which $0.2 million was for the sale of a bank branch condominium in the third quarter. The decrease of $0.4 million, or 73%, in other real estate expense for 2015 is primarily due to a decrease in the overall other real estate and related property taxes and other write downs.  Other real estate was $0.3 million at December 31, 2016, $2.3 million at December 31, 2015, and $3.1 million at December 31, 2014. 

General and administrative – Other general and administrative expenses increased $0.7 million, or 7%, in 2016,primarily due to $0.4 million in restructuring charges incurred in the third quarter of 2016 and $0.9 million in legal and consulting fees associated with the recently announced Merger Agreement incurred in the fourth quarter of 2016, partially offset by a cost savings initiative during 2016.  Other general and administrative expenses decreased $1.9 million, or 16%, in 2015due to lower legal and consulting fees, partially offset by increased expenses due to the acquisition of Bancshares.

Operating Segments

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Oklahoma banking	$	12,919	$	13,494	$	11,922
Texas banking		5,960		5,734		6,896
Kansas banking		537		1,578		1,784
Other operations		(1,712)		(3,399)		428
Consolidated net income	$	17,704	$	17,407	$	21,030
Oklahoma banking	$	1,095,930	$	1,048,473	$	793,262
Texas banking		636,643		580,476		460,680
Kansas banking		144,559		150,480		146,043
Other operations		-		-		6
Consolidated total loans	$	1,877,132	$	1,779,429	$	1,399,991
Oklahoma banking	$	1,138,969	$	1,098,735	$	805,704
Texas banking		633,328		578,749		458,489
Kansas banking		143,558		149,847		147,256
Other operations		559,537		529,691		530,585
Consolidated total assets	$	2,475,392	$	2,357,022	$	1,942,034
Oklahoma banking	$	1,330,176	$	1,374,227	$	1,113,477
Texas banking		195,603		209,146		224,634
Kansas banking		147,823		119,313		110,901
Other operations		272,416		181,419		84,987
Consolidated total deposits	$	1,946,018	$	1,884,105	$	1,533,999

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We have four reportable operating segments:  Oklahoma Banking, Texas Banking, Kansas Banking, and Other Operations. Due to its size and management structure, Colorado Banking is included within Oklahoma Banking. These business segments were identified through the products and services that are offered within each segment and the geographic area they serve. Prior to the fourth quarter of 2015,  we disclosed a Mortgage Banking segment, which included 1-4 family mortgages and the available for sale loans.For segment reporting, the Mortgage Banking segment has been combined with and into the Oklahoma Banking segment due to those loans being managed from that location. Prior period numbers have been adjusted to reflect this change. This adjustment has no financial statement impact.

The contribution of the Oklahoma Banking segment decreased $0.6 million in 2016 as a result of a $4.1 million increase in the provision for loan losses and a $7.0 million increase in noninterest expense, offset in part by an $8.6 million increase in net interest income, a $1.4 million increase in noninterest income, and a $0.4 million decrease income tax expense. The contribution of the Oklahoma Banking segment increased $1.6 million in 2015 as a result of a $3.2 million increase in net interest income, and a $1.1 million increase in noninterest income, offset in part by a $1.8 million increase in noninterest expense, a $0.4 million increase in income tax expense, and an increase of $0.5 million in the provision for loan losses.

The contribution of the Texas Banking segment increased $0.2 million in 2016 as a result of a $1.6 million increase in the provision for loan losses and a $0.2 million decrease in noninterest income, offset in part by a $1.5 million increase in net interest incomeand a $0.6 million decrease in noninterest expense.  The contribution of the Texas Banking segment decreased $1.2 million in 2015 as a result of a $3.0 million increase in the provision for loan losses, a $0.9 million increase in noninterest expense and a $0.1 million decrease in noninterest income, offset in part by a $2.0 million increase in net interest income, and a $0.9 million decrease in income tax expense.

The contribution of the Kansas Banking segment decreased $1.0 million in 2016, primarily as a result of a$2.7 million increase in the provision for loan losses and a $0.3 million decrease in noninterest income, offset in part by s $0.4 million increase in net interest income, a $0.9 million decrease in noninterest expense,and a $0.6 million decrease in income tax expense.The contribution of the Kansas Banking segment decreased $0.2 million in 2015, primarily as a result of a $3.2 million decrease in net interest income, and a $0.1 million decrease in noninterest income, offset in part by a $2.5 million decrease in noninterest expense, a $0.4 million decrease in the provision for loan losses, and a $0.2 million decrease in income tax expense. 

At December 31, 2016,  our twenty-one Oklahoma segment locations accounted for $1.1 billion in loans, or 58% of total portfolio loans, our five Texas segment locations accounted for $636.6 million in loans, or 34% of total portfolio loans, and our four Kansas segment locations accounted for $144.6 million in loans, or 8% of total portfolio loans.

For 2016 and 2015, the Other Operations segment, which includes our funds management unit and corporate investments, incurred a loss of $1.7 million and $3.4 million, respectively. The value of funds provided and cost of funds borrowed from the funds management unit by the operating segments are internally priced at rates that approximate market rates for funds with similar duration. 

The Oklahoma Banking, Texas Banking, and Kansas Banking segments provide the majority of consolidated net interest income and net earnings, and for the year ended December 31, 2016 accounted for approximately $1.9 billion, or 77%, of total assets.

The segment disclosures are based upon a number of assumptions and allocations of expense. We allocate resources and evaluate performance of our segments after allocation of funds, indirect expenses, taxes, and capital costs. Capital is assigned to each of the segments using a risk-based capital pricing methodology that assigns capital ratios by asset, deposit, or revenue category based on credit risk, interest rate risk, market risk, operational risk, and liquidity risk factors.

Taxes on Income

The income tax expense for 2016 totaled $9.8 million, compared to income tax expense of $9.8 million for 2015 and income tax expense for 2014 of $12.6 million. The income tax expense fluctuates in relation to pre-tax income levels. The effective tax rate for the year ended December 31, 2016 was 35.7%, compared to 36.0% for the year ended December 31, 2015 and 37.5% for the year ended December 31, 2014. Our effective tax rate differs from the statutory rates primarily due to our level of tax-exempt income offset in part by certain non-deductible expense items.

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Total Assets

Our total assets increased by $118.4 million, or 5%, to $2.5 billion at December 31, 2016, compared to $2.4 billion at December 31, 2015, after increasing by $415.0 million, or 21%, compared to $1.9 billion at December 31, 2014. The increase in assets in 2016 was primarily attributable to the $11.9 million, or 48%, increase in cash and due from banks, $97.7 million, or 6%, increase in total loans, the $24.5 million, or 6%, increase in securities, the $0.9 million, or 3%, increase in bank owned life insurance, and the $3.0 million, or 9%, increase in other assets, offset in part by a $14.3 million, or 27%, decrease in interest-bearing deposits, a $0.6 million, or 31%, decrease in non-hedge derivative asset, and a $1.9 million, or 85%, decrease in other real estate.The increase in assets in 2015 was primarily attributable to the $379.4 million, or 27%, increase in total loans, the $46.5 million, or 13%, increase in securities, the $27.7 million, or 100%, increase in bank owned life insurance, the $12.3 million, or 1,009%, increase in goodwill, and the $5.2 million, or 28%, increase in premises and equipment, and the $2.7 million, or 68%, increase in other intangible assets, all primarily due to the acquisition of Bancshares, offset in part by a $62.8 million, or 45%, decrease in cash and cash equivalents.

Investment Securities Portfolio

We maintain an investment securities portfolio consisting of securities issued by U.S. Government sponsored entities, state and political subdivisions, mortgage-backed securities, asset-backed securities, and other investments. Mortgage-backed securities consist of agency securities underwritten and guaranteed by Government National Mortgage Association, Federal Home Loan Mortgage Corporation, and Federal National Mortgage Association. Investment securities are held in safekeeping by an independent custodian. Asset-backed securities are collateralized by student loans.

Investment securities assigned to the available for sale portfolio are generally used to supplement our liquidity, provide a prudent yield, and provide collateral for public deposits and other borrowing facilities. Unrealized net gains and losses on available for sale securities are recorded as an adjustment to equity, net of taxes, but are not reflected in our current earnings. If management determines that any impairment in any available for sale security is “other-than-temporary,” a securities loss will be recognized as a charge to earnings. If a security is sold, any gain or loss is recorded as a credit or charge to earnings and the equity adjustment is reversed. At December 31, 2016, we held $426.2 million in securities classified as available for sale with an unrealized loss of $0.9 million, $0.6 million net of taxes, related to these securities included in shareholders’ equity.

Investment securities assigned to the held to maturity portfolio earn a prudent yield, provide liquidity from maturities and paydowns, and provide collateral to pledge for federal, state, and local government deposits and other borrowing facilities. The held to maturity investment portfolio at December 31, 2016 included $10.4 million in fixed-rate securities. If management determines any impairment in any held to maturity security is “other-than-temporary,” a securities loss will be recognized as a charge to earnings. As of December 31, 2016, there were no other-than-temporary impairment charges.

We had no trading securities at December 31, 2016, 2015, or 2014.

A summary of the investment securities portfolio is as follows for the years ended December 31, 2016, 2015, and 2014.

	At December 31,
(Dollars in thousands)		2016		2015		2014
Federal agency securities		69,694		78,210		99,546
Obligations of states and political subdivisions		56,818		59,362		45,501
Residential mortgage-backed securities		280,642		239,888		178,227
Asset-backed securities		9,177		9,415		9,548
Other investments		20,330		25,253		32,771
Total investment securities	$	436,661	$	412,128	$	365,593
Available for sale (fair value)		426,218		400,331		353,231
Held to maturity (amortized cost)		10,443		11,797		12,362
Total investment securities	$	436,661	$	412,128	$	365,593

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We do not have any material amounts of investment securities or other interest-earning assets, other than loans, that would have been classified as nonperforming if such assets were loans or which were recognized by management as potential problem assets based upon known information about possible credit problems of the borrower or issuer.

The following table shows the maturities, carrying value (amortized cost for investment securities being held to maturity or estimated fair value for investment securities available for sale), estimated fair market values, and average yields for our investment portfolio at December 31, 2016. Yields are not presented on a tax-equivalent basis. Maturities of mortgage-backed securities are based on expected maturities. Expected maturities differ from contractual maturities because borrowers of the underlying mortgages may have the right to call or prepay obligations with or without prepayment penalties. The securities of no single issuer (other than the United States or its agencies), or in the case of securities issued by state and political subdivisions, no source or group of sources of repayment, accounted for more than 10% of our shareholders’ equity at December 31, 2016.

						After One			After Five
	One Year					Year Through			Years Through				After				Total Investment
	or Less					Five Years			Ten Years				Ten Years				Securities
(Dollars in thousands)	Cost		Yield			Cost	Yield		Cost		Yield		Cost		Yield		Cost		Market		Yield
Held to Maturity:
Obligations of states and
political subdivisions	$	-	-	%	$	9,298	4.02	%	$	1,145	3.07	%	$	-	-	%	$	10,443	$	10,677	3.92	%
Total Held to Maturity	$	-	-	%	$	9,298	4.02	%	$	1,145	3.07	%	$	-	-	%	$	10,443	$	10,677	3.92	%
Available for Sale:
Federal agency securities	$	2,371	1.90	%	$	36,759	1.73	%	$	5,141	1.77	%	$	25,420	1.44	%	$	69,691	$	69,694	1.63	%
Obligations of states and
political subdivisions		525	1.38			25,810	2.56			13,327	2.87			6,443	3.89			46,105		46,375	2.82
Residential mortgage-
backed securities		4,806	1.02			236,448	1.60			40,415	2.10			366	6.00			282,035		280,642	1.69
Asset-backed securities		-	-			-	-			7,616	1.43			1,649	1.58			9,265		9,177	1.46
Other securities		-	-			10,011	1.86			10,006	1.96			-	-			20,017		20,330	1.91
Total Available for Sale	$	7,702	1.31	%	$	309,028	1.65	%	$	76,505	1.87	%	$	33,878	1.96	%	$	427,113	$	426,218	1.72	%
Total	$	7,702			$	318,326			$	77,650			$	33,878			$	437,556	$	436,895

Note:  Average yields for investments held for sale is based on amortized cost. Yields on tax-exempt securities are shown on a tax-equivalent basis.

Loan Portfolio

The following table presents the composition of the loan portfolio over the previous five years.

	At December 31,
(Dollars in thousands)	2016		2015		2014		2013		2012
Real estate mortgage:
Commercial	$	882,071	$	938,462	$	752,971	$	752,279	$	889,273
One-to-four family residential		199,123		161,958		77,531		83,988		75,835
Real estate construction:
Commercial		199,113		129,070		186,659		143,848		131,135
One-to-four family residential		20,946		21,337		10,464		4,646		3,656
Commercial		556,248		507,173		350,410		255,058		242,535
Installment and consumer:
Guaranteed student loans		-		-		37		4,394		4,680
Other		19,631		21,429		21,919		26,690		31,621
		1,877,132		1,779,429		1,399,991		1,270,903		1,378,735
Less:  Allowance for loan losses		(27,546)		(26,106)		(28,452)		(36,663)		(46,718)
Total loans, net	$	1,849,586	$	1,753,323	$	1,371,539	$	1,234,240	$	1,332,017

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During the second quarter of 2014, we sold three bank branches inKansas. The sold branches had combined total loans of $27.9 million. These transactions resulted in a net gain of $4.4 million, which is included under noninterest income in the gain on sale of bank branches, net  as a separate line item on the Consolidated Statements of Operations.

We have a strategic focus on providing loans and other services to healthcare and health professionals, businesses and their managers and owners, and commercial and commercial real estate borrowers. At December 31, 2016 and 2015, loans to individuals and businesses in the healthcare industry totaled $423.8 million, or 23%, and $425.7 million, or 24% of loans, respectively.

As of December 31, 2016 and 2015, included in commercial loans is approximately $48.6 million and $63.4 million in energy loans, respectively.

The overall increase in loans in 2016 was primarily due to the organic growth in each of our markets. The increase in loans in 2015 was due to the organic growth in each of our markets along with loans acquired with the acquisition of Bancshares. 

The following table sets forth the remaining maturities for certain loan categories (including loans held for sale) at December 31, 2016. Real estate construction includes certain loans which will convert to permanent financing at the point when construction is completed; these loans are reported according to their final maturity.

			After One
	One Year		Year through		After
(Dollars in thousands)	or Less		Five Years		Five Years		Total
Real estate mortgage:
Commercial	$	101,038	$	475,457	$	305,576	$	882,071
One-to-four family residential		11,079		50,160		137,884		199,123
Real estate construction		64,417		126,602		29,040		220,059
Commercial		185,997		272,600		97,651		556,248
Installment and consumer:
Other		7,893		9,221		2,517		19,631
Total	$	370,424	$	934,040	$	572,668	$	1,877,132

Any floating rate loans that reached a contractual floor or ceiling level are treated as fixed rate rather than floating rate until the rate is again free to float. The following table sets forth at December 31, 2016 the dollar amount of all loans due more than one year after December 31, 2016.

(Dollars in thousands)	Fixed		Variable		Total
Real estate mortgage:
Commercial	$	340,040	$	440,993	$	781,033
One-to-four family residential		109,794		78,250		188,044
Real estate construction		44,184		111,458		155,642
Commercial		143,450		226,801		370,251
Installment and consumer		6,160		5,578		11,738
Total	$	643,628	$	863,080	$	1,506,708

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Nonperforming Assets and Potential Problem Loans

The following table shows the amounts of nonperforming assets at the end of the periods indicated. Please see “Note 1:  Summary of Significant Accounting and Reporting Polices” in the Notes to the Consolidated Financial Statements for a description of our policy for placing loans on nonaccrual status. Nonperforming troubled debt restructurings are included in nonaccrual loans.

	At December 31,
(Dollars in thousands)	2016			2015			2014			2013			2012
Nonaccrual loans:
Commercial real estate	$	6,471		$	3,543		$	2,195		$	7,766		$	21,424
One-to-four family residential		2,766			1,729			1,100			513			615
Real estate construction		970			1,010			73			2,721			3,485
Commercial		5,949			13,491			5,907			8,769			13,085
Other consumer		111			85			1			50			90
Total nonaccrual loans		16,267			19,858			9,276			19,819			38,699
Past due 90 days or more:
Commercial real estate		-			449			-			-			-
One-to-four family residential		138			48			-			-			747
Commercial		193			-			137			50			2,471
Other consumer		12			3			-			3			72
Total past due 90 days or more		343			500			137			53			3,290
Total nonperforming loans		16,610			20,358			9,413			19,872			41,989
Other real estate		350			2,274			3,097			2,654			14,958
Total nonperforming assets	$	16,960		$	22,632		$	12,510		$	22,526		$	56,947
Nonperforming assets to portfolio loans
and other real estate		0.91	%		1.28	%		0.89	%		1.77	%		4.18	%
Nonperforming loans to portfolio loans		0.89			1.15			0.67			1.57			3.12
Allowance for loan losses to nonperforming loans		165.84			128.23			302.26			184.50			111.26
Government-guaranteed portion of nonperforming loans	$	-		$	-		$	895		$	875		$	2,532

At December 31, 2016,  six credit relationships represented 77% of nonperforming loans and 74% of nonperforming assets, while at December 31, 2015, nine credit relationships represented 78% of nonperforming loans and 69% of nonperforming assets.

Nonperforming assets may fluctuate from period to period. The performance of any individual loan can be affected by external factors such as the interest rate environment, economic conditions, collateral values, or factors particular to the borrower. No assurance can be given that additional increases in nonaccrual loans will not occur in the future.

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 $44.0 million at December 31, 2016, compared to $39.2 million at December 31, 2015. Loans may be monitored by management and reported in potential problem loans for an extended period of time during which management continues to be uncertain as to the ability of certain borrowers to comply with the present loan repayment terms. These loans are subject to continued management attention and are considered by management in determining the level of the allowance for loan losses.

Management strives to carefully monitor credit quality and to identify loans that may become nonperforming. At any time, however, there are loans included in the portfolio that will result in losses to us but that have not been identified as nonperforming or potential problem loans. Because the loan portfolio contains a significant number of commercial and commercial real estate loans with relatively large balances, the unexpected deterioration of one or a few of such loans may cause a significant increase in nonperforming assets, the provision for loan losses, and charge-offs.

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Allowance for Loan Losses

We make provisions for loan losses in amounts necessary to maintain the allowance for loan losses at the level we determine is appropriate. The amount of the allowance is based on careful, continuous review and evaluation of the loan portfolio and ongoing quarterly assessments of the probable losses inherent in the loan portfolio. The allowance for loan losses is determined in accordance with regulatory guidelines and GAAP. See “Allowance for Loan Losses” in “Note 1:Summary of Significant Accounting and Reporting Policies” in the Notes to the Consolidated Financial Statements for a description of our allowance for loan losses methodology.

Based upon this methodology, management established an allowance of $27.5 million, or 1.47% of total portfolio loans, at December 31, 2016, compared to an allowance of $26.1 million, or 1.47% of total portfolio loans, at December 31, 2015. This represents an increase in the allowance of $1.4 million, or 5%. 

Changes in the amount of the allowance resulted from the application of the methodology, which is designed to estimate inherent losses on total portfolio loans, including nonperforming loans. At December 31, 2016, the allowance on the $16.3 million in nonaccrual loans was $3.7 million (13%), compared with an allowance on the $19.9 million in nonaccrual loans at December 31, 2015 of $2.5 million (13%), representing an increase in the allowance of $1.2 million. The increase in the allowance for nonaccrual loans was primarily the result of the downgrade of one commercial real estate credit. At December 31, 2016, the allowance on the $1.2 million performing troubled debt restructured loans was $0, compared with an allowance on $20.2 million in performing troubled debt restructured loans of $1.6 million at December 31, 2015, representing a decrease in the allowance of $1.6 million. The decrease in performing troubled debt restructured loan balances and the related allowance was primarily due to the payoff of one commercial real estate credit and the renewal and upgrade of a commercial real estate credit that is no longer considered a troubled debt restructured loan.

Excluding the impaired loans mentioned above, at December 31, 2016, the allowance for the remaining other loans was $23.9 million (1.3%), compared to $22.0 million (1.2%) at December 31, 2015, creating an increase in the allowance of $1.9 million. The allowance related to the remaining other loans reflects the consideration of the increase in loan volume, portfolio loss trends and qualitative factors, including management’s assessment of economic risk, asset quality trends, levels of potential problem loans, and loan concentrations in commercial real estate mortgage and construction loans. Based on its analysis management believes the amount of the allowance is appropriate.

At December 31, 2016, the allowance for loan losses was 165.84% of nonperforming loans, compared to 128.23% of nonperforming loans at December 31, 2015. Nonaccrual loans, which comprise the majority of nonperforming loans, were $16.3 million as of December 31, 2016, a decrease of $3.6 million, or 18%, from December 31, 2015. Nonaccrual loans at December 31, 2016 were comprised of 44 relationships and were primarily concentrated in commercial loans (37%), commercial real estate loans (40%), and one-to-four family residential (17%) loans. All nonaccrual loans are considered impaired and are carried at their estimated collectible amounts. 

The following table presents a five-year history of the allocation of the allowance for loan losses along with the percentage of total loans in each category.

	At December 31,
(Dollars in thousands)	2016				2015				2014				2013				2012
Real estate mortgage:
Commercial	$	12,507	47	%	$	12,716	53	%	$	13,678	53	%	$	18,854	59	%	$	27,223	64	%
One-to-four family
residential		1,163	11			700	9			712	6			850	7			861	6
Real estate construction		3,502	11			2,533	8			4,159	14			5,523	11			5,271	10
Commercial		10,058	30			9,965	29			9,614	25			10,985	20			12,604	18
Other		316	1			192	1			289	2			451	3			759	2
Total	$	27,546	100	%	$	26,106	100	%	$	28,452	100	%	$	36,663	100	%	$	46,718	100	%

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The following table analyzes our allowance for loan losses for the periods indicated.

	For the Year Ended December 31,
(Dollars in thousands)	2016			2015			2014			2013			2012
Balance at beginning of period	$	26,106		$	28,452		$	36,663		$	46,718		$	44,684
Loans charged-off:
Commercial real estate		193			489			1,400			806			2,167
One-to-four family residential		134			20			289			578			269
Real estate construction		-			21			655			(246)			-
Commercial		6,148			628			4,014			8,599			4,455
Other consumer		522			193			558			267			649
Total charge-offs		6,997			1,351			6,916			10,004			7,540
Recoveries:
Commercial real estate		400			282			3,733			171			58
One-to-four family residential		77			558			213			252			271
Real estate construction		-			47			-			4,527			1,972
Commercial		3,079			1,479			1,119			2,049			3,671
Other consumer		112			205			264			159			495
Total recoveries		3,668			2,571			5,329			7,158			6,467
Net loans charged-off (recovered)		3,329			(1,220)			1,587			2,846			1,073
Provision (credit) for loan losses		4,769			(3,566)			(6,624)			(7,209)			3,107
Balance at end of period	$	27,546		$	26,106		$	28,452		$	36,663		$	46,718
Portfolio loans:
End of period balance	$	1,872,746		$	1,771,976		$	1,398,506		$	1,267,843		$	1,347,053
Average balance		1,822,288			1,519,730			1,334,323			1,315,001			1,567,318
Ratio of allowance for loan losses to
portfolio loans at end of period		1.47	%		1.47	%		2.03	%		2.89	%		3.47	%
Ratio of net charge-offs (recoveries) to average
portfolio loans during the period		0.18	%		(0.08)	%		0.12	%		0.22	%		0.07	%

Short-term Borrowings

Our primary source of short-term borrowings is Federal Home Loan Bank (“FHLB”) advances. For additional information regarding our short-term and other borrowings, please see “Note 10:  Borrowed Funds” in the Notes to the Consolidated Financial Statements.

Off-Balance Sheet Arrangements and Contractual Obligations

In the normal course of business, we make use of a number of different financial instruments to help meet the financial needs of our customers. In accordance with GAAP, the full notional amounts of these transactions are not recorded in the accompanying consolidated financial statements and are referred to as off-balance sheet instruments. These transactions and activities include commitments to extend lines of commercial and real estate mortgage credit and standby and commercial letters of credit and are discussed further in “Note 19:  Off-Balance-Sheet Arrangements, Commitments, Guarantees and Contractual Obligations” in the Notes to the Consolidated Financial Statements.

We have various contractual obligations that require future cash payment. The following table presents, as of December 31, 2016, significant fixed and determinable contractual obligations to third parties by payment date.At December 31, 2016,  the notional or principal amount of such obligations are reflected on the Consolidated Statements of Financial Condition, with the exception of operating leases.

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	Payments Due by Period
	Less than		1-3		3-5		Over
(Dollars in thousands)	1 Year		Years		Years		5 Years		Total
Deposits without stated maturity: (1)
Noninterest bearing	$	551,709	$	-	$	-	$	-	$	551,709
Interest bearing		776,124		-		-		-		776,124
Time deposits (2)		465,500		140,423		15,704		29		621,656
Other borrowings (2)		184,535		-		-		-		184,535
Subordinated debentures (2)		1,806		3,612		3,612		67,404		76,434
Operating leases		2,723		4,368		3,349		2,822		13,262
Total	$	1,982,397	$	148,403	$	22,665	$	70,255	$	2,223,720

(1)  Excludes Interest.

(2)  Includes interest. Interest on variable rate obligations is shown at rates in effect at December 31, 2016. The contractual amounts to be paid on variable rate obligations are affected by changes in market interest rates. Future changes in market interest rates could materially affect the contractual amounts to be paid.

For additional information regarding contractual obligations, please see “Quantitative and Qualitative Disclosures about Market Risk” on page 49 and in the Notes to the Consolidated Financial Statements in this report, “Note 6: Premises and Equipment,” “Note 9:  Deposits,” “Note 10:Borrowed Funds,” “Note 11: Trust Preferred Securities and Subordinated Debentures,” and “Note 19: Off-Balance-Sheet Arrangements, Commitments, Guarantees and Contingencies.”

Capital Resources

At December 31, 2016, total shareholders’ equity was $286.6 million, compared to $296.1 million at December 31, 2015, a decrease of $9.5 million. The decrease was primarily due to the $22.7 million of treasury stock purchases and $6.0 million in common stock dividends paid, offset in part by anincrease in net common stock issued under employee plans and related tax expense of $1.2 million, an increase of $0.4 million in othercomprehensive income, net of tax, and net income of $17.7 million. Net unrealized losses on available for sale investment securities and derivative instruments (net of tax) decreased to ($0.9) million at December 31, 2016, from $(1.3) million at December 31, 2015.

At December 31, 2015, total shareholders’ equity was $296.1 million, compared to $270.8 million at December 31, 2014, an increase of $25.3 million. The increase was primarily due to the $21.4 million of new stock issued related to the acquisition of Bancshares and $17.4 million of income, offset in part by a decrease in other comprehensive income (loss) of ($0.9) million, offset in part by $8.6 million in treasury stock purchases for the year and $4.6 million in common stock dividends paid. Net unrealized losses on available for sale investment securities and derivative instruments (net of tax) increased to ($1.3) million at December 31, 2015, from $(0.4) million at December 31, 2014.

On August 14, 2014, the Board authorized the repurchase of up to 5%, or 990,000 shares, of our common stock, pursuant to a share repurchase program which expired on August 14, 2015. On February 24, 2015, the Board authorized a second consecutive share repurchase program of up to 5.0%, or 950,000 shares, of our common stock, which became effective upon the expiration of the first program on August 14, 2015. On February 23, 2016, the Board authorized a third share repurchase program which became effective on March 11, 2016, authorizing the repurchase of up to another 5.0%,or approximately 960,000 shares, of our common stock. On May 26, 2016, the Board authorized a fourth share repurchase program, authorizing the repurchase of up to another 5%, or approximately 921,000 shares, of our common stock effective February 23, 2017, which was the original expiration date of the third stock repurchase program. During 2016, we repurchased 1,398,026 shares for a total of $22.1 million, and since August 2014, we have repurchased a total of 2,519,584 shares for a total of $40.8 million. Our ability to repurchase our common stock is limited during the time that the Merger is pending.

Bank holding companies are required to maintain capital ratios in accordance with guidelines adopted by the Federal Reserve Board. The guidelines are commonly known as Risk-Based Capital Guidelines. On December 31, 2016, we exceeded all applicable capital requirements, having a total risk-based capital ratio of 15.66%, a Tier 1 risk-based capital ratio of 14.40%, a Tier 1 leverage ratio of 13.02%, and a CET1 risk-based capital ratio of 12.36%. Banking subsidiaries are also required to maintain capital ratios in accordance with guidelines adopted by their primary regulators. The general regulatory minimums to be well-capitalized are a total capital to risk weighted assets ratio of 10.00%, a Tier I risk-based

45

capital ratio of 8.00%, CET1 risk-based capital ratio of 6.5%, and a Tier 1 leverage ratio of 5.00%. As of December 31, 2016, we and Bank SNB each met the criteria for classification as a “well-capitalized” institution under the prompt corrective action rules promulgated under the Federal Deposit Insurance Act. Designation as a well-capitalized institution under these regulations does not constitute a recommendation or endorsement of us or Bank SNB by Federal bank regulators. See “Dividend Restrictions”  on page 47 of this report.

Liquidity

Liquidity is measured by a financial institution’s ability to raise funds through deposits, borrowed funds, capital, or the sale of highly marketable assets, such as available for sale investments, in order to meet current and future cash flow needs as they become due. Additional sources of liquidity, including cash flow from the repayment of loans and maturities of investment securities, are also considered in determining whether liquidity is satisfactory. Other sources of liquidity can be provided by the Federal Home Loan Bank (“FHLB”), the Federal Reserve Bank (“FRB”), and correspondent lines of credit. Liquidity is also achieved through growth of deposits and liquid assets and accessibility to the capital and money markets. These funds are used to meet deposit withdrawals, maintain reserve requirements, fund loans, purchase securities, and operate the organization.

In order to diversify our funding sources, we may from time-to-time post deposit rates via a non-brokered direct deposit listing service. These deposits are generally institutional in nature and accounts generally do not exceed the FDIC insurance threshold of $250,000. 

The following table indicates the amount of certificates of deposit of $100,000 or more by time remaining until maturity as of December 31, 2016:  

(Dollars in thousands)	Amount
Three months or less (1)	$	105,567
Over three through six months (1)		38,538
Over six through 12 months (1)		128,457
Over 12 months		87,745
Total	$	360,307

(1) The amount of certificates of deposits of $100,000 and more that matures within 12 months is $272.6 million.

The following table illustrates, during the years presented, the mix of our funding sources and the assets in which those funds are invested as a percentage of our average total assets for the period indicated. Average assets totaled $2.4 billion in 2016, $2.1 billion in 2015, and $1.9 billion in 2014.

	Percentage of Total Average Assets
	2016		2015
Sources of Funds:
Deposits:
Noninterest-bearing demand	23.08	%	25.20	%
Interest-bearing demand and money market accounts	29.37		30.49
Time and savings deposits	27.08		24.47
Other borrowings	5.97		3.49
Subordinated debentures	1.95		2.29
Other liabilities	0.63		0.63
Equity capital	11.92		13.43
Total	100.00	%	100.00	%
Uses of Funds:
Loans	75.84	%	73.07	%
Investment securities	17.67		18.50
Other interest-earning assets	2.07		5.12
Noninterest-earning assets	4.42		3.31
Total	100.00	%	100.00	%

46

Sources and uses of cash are presented in the Consolidated Statements of Cash Flows on page 56 of this report. Total cash and cash equivalents decreased by $2.4 million to $75.7 million in 2016 from $78.1 million at year-end 2015. This decrease was the net result of cash used in investing activities of $131.5 million, primarily from purchases of available for sale securities  and loans originated, net of principal payments, offset by cash provided by operating activities of $27.0 million and cash provided by financing activities of $102.0 million, primarily from increased deposits and other borrowings.

Total cash and cash equivalents decreased by $62.8 million to $78.1 million in 2015 from $140.9 million at year-end 2014. This decrease was the net result of cash used in investing activities of $194.4 million, primarily from purchases of available for sale securities and bank owned life insurance and loans originated, net of principal payments, offset by cash provided by operating activities of $14.9 million and cash provided by financing activities of $116.7 million, primarily from increased deposits and other borrowings.

Effects of Inflation

The consolidated financial statements and related consolidated financial data in this report have been prepared in accordance with accounting principles generally accepted in the United States and practices within the banking industry that require the measurement of financial position and operating results in terms of historical dollars without considering fluctuations in the relative purchasing power of money over time due to inflation. Unlike most industrial companies, virtually all the assets and liabilities of a financial institution are monetary in nature. As a result, interest rates have a more significant impact on a financial institution’s performance than the effects of general levels of inflation.

Dividend Restrictions

Bank SNB is subject to legal and regulatory limitations on the amount of dividends that it may pay without prior approval of the Oklahoma State Banking Department and the Federal Reserve. Under these regulations, the total amount of dividends that may be paid in any calendar year by Bank SNB to us without Oklahoma State Banking Department approval is limited to the current year’s net profits, combined with the retained net profits of the preceding two years. 

Critical Accounting Policies

Our consolidated financial statements are prepared in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) and follow general practices within the banking industry. Application of these principles requires management to make estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information that is subject to change. Certain policies inherently rely more on the use of estimates, assumptions, and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Management is required to use estimates, assumptions, and judgments when assets and liabilities are required to be recorded at fair value, when a decline in the value of an asset not carried on the financial statements at fair value warrants an impairment write-down or valuation allowance to be established, or when an asset or liability must be recorded contingent upon a future event. Carrying assets and liabilities at fair value inherently results in more financial statement volatility. The fair values and the information used to record valuation adjustments for certain assets and liabilities are based either on quoted market prices or are provided by other third-party sources, when readily available.

The most significant accounting policies we follow are presented in “Note 1 Summary of Significant Accounting and Reporting Policies” in the Notes to the Consolidated Financial Statements. These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the financial statements and how those values are determined. Based on the valuation techniques used and the sensitivity of financial statement amounts to the methods, estimates, assumptions, and judgments underlying those amounts, management has identified the allowance for loan losses, goodwill and other intangible assets, and income tax accounting policies to be the accounting areas that require the most subjective or complex judgments, and as such could be most subject to revisions as new information becomes available.

Allowance for Loan Losses – The allowance for loan losses is an estimate of the losses that may be sustained in the loan portfolio. The allowance is based on two basic principles of accounting: (1) ASC 450, Contingencies, which requires that losses be accrued when they are probable of occurring and estimable, and (2) ASC 310.10.35, Receivables:Subsequent

47

Measurement, which requires that losses be accrued when it is probable that we will not collect all principal and interest payments according to the loan’s contractual terms.

The allowance determination process requires significant judgment. Estimates of probable losses inherent in the loan portfolio can vary significantly from the amounts that actually occur. While management uses available information to recognize probable losses, future additions to the allowance may be necessary based on changes in the loans comprising the portfolio and changes in the financial condition of borrowers, which may be the result of changes in economic conditions. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the loan portfolio and the allowance. These reviews may result in additional provisions based on the agencies’ judgments based upon information available at the time of each examination. Because the loan portfolio contains a significant number of commercial mortgage and commercial real estate construction loans with relatively large balances, the unexpected deterioration of one or a few of such loans may cause a significant increase in the provision for loan losses and nonperforming assets, and may lead to material increases in charge-offs and the provision for loan losses in future periods.

Our methodology for assessing the appropriateness of the allowance is in accordance with regulatory guidelines and GAAP, as described in “Provision for Loan Losses” on page 35 and in “Note 1:  Summary of Significant Accounting and Reporting Policies” in the Notes to the Consolidated Financial Statements. 

Goodwill and Other Intangible Assets– Goodwill and other intangible assets that have indefinite useful lives are subject to an impairment test at least annually and more frequently if circumstances indicate impairment. Goodwill is tested for impairment using a two-step process that begins with an estimation of the fair value of each of our reporting units compared with its carrying value. We define reporting units as a level below each of its operating segments for which there is discrete financial information that is regularly reviewed. As of December 31, 2016, we have eight reporting units. If the carrying value exceeds the fair value of a reporting unit, a second test is completed comparing the implied fair value of the reporting unit’s goodwill to its carrying value to measure the amount of impairment. 

Other identifiable intangible assets are amortized on an accelerated basis over the years expected to be benefited, which we believe are up to ten years. These amortizable intangible assets are reviewed for impairment if circumstances indicate their carrying value may not be recoverable based on a comparison to fair value. See “Note 7: Goodwill and Other Intangible Assets” in the Notes to the Consolidated Financial Statements for further information.

Income Taxes – Our income tax expense, deferred tax assets and liabilities, and reserves for unrecognized tax benefits reflect management’s best assessment of estimated current and future taxes to be paid. We are subject to the income tax laws of the United States and various state jurisdictions. These tax laws are complex and require significant judgment and interpretation by the taxpayer.

We use the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. The net deferred tax asset is reflected as a component of other assets on the consolidated balance sheet. A valuation allowance is recognized for a deferred tax asset if, based on the weight of available evidence, it is more likely than not that some portion or the entire deferred tax asset will not be realized. The determination of the realizability of deferred taxes is highly subjective and dependent upon judgment concerning management’s evaluation of both positive and negative evidence.

Income tax expense or benefit is estimated based on amounts expected to be owed to the various tax jurisdictions in which we conduct business. On a quarterly basis, management assesses the reasonableness of our effective tax rate based upon the current estimate of the amount and components of net income, tax credits and the applicable statutory tax rates expected for the full year. The tax expense or benefit is allocated among continuing operations and other comprehensive income (loss), as applicable. See “Note 13:  Taxes on Income” in the Notes to the Consolidated Financial Statements for further information.

48

Item 7a.  Quantitative and Qualitative Disclosures about Market Risk

Our income is largely dependent on our net interest income. We seek to maximize our net interest margin within an acceptable level of interest rate risk. Interest rate risk can be defined as the amount of forecasted net interest income that may be gained or lost due to favorable or unfavorable movements in interest rates. Interest rate risk, or sensitivity, arises when the maturity or repricing characteristics of assets differ significantly from the maturity or repricing characteristics of liabilities. Net interest income is also affected by changes in the portion of interest-earning assets that are funded by interest-bearing liabilities rather than by other sources of funds such as noninterest-bearing deposits and shareholders’ equity. 

We attempt to manage interest rate risk while enhancing net interest margin by adjusting our asset/liability position. At times, depending on the level of general interest rates, the relationship between long-term and other interest rates, market conditions, and competitive factors, we may increase our interest rate risk position in order to increase our net interest margin. We monitor interest rate risk and adjust the composition of our rate-sensitive assets and liabilities in order to limit our exposure to changes in interest rates on net interest income over time. Our asset/liability committee reviews our interest rate risk position and profitability and recommends adjustments. Our asset/liability committee also reviews the securities portfolio, formulates investment strategies, and oversees the timing and implementation of transactions. Notwithstanding our interest rate risk management activities, the actual magnitude, direction, and relationship of future interest rates are uncertain and can have adverse effects on net income and liquidity.

Interest rate sensitivity analysis measures the cumulative differences between the amounts of assets and liabilities maturing or repricing within various time periods.

The following table shows our interest rate sensitivity gaps for selected maturity or repricing periods at December 31, 2016:

	0 to 3			4 to 12			Over 1 to			Over
(Dollars in thousands)	Months			Months			5 Years			5 Years			Total
Rate-sensitive assets:
Total loans	$	974,027		$	134,152		$	517,416		$	251,537		$	1,877,132
Investment securities		-			2,902			91,259			342,500			436,661
Other investments at costs		14,627			-			-			-			14,627
Due from banks		38,819			-			-			-			38,819
Total		1,027,473			137,054			608,675			594,037			2,367,239
Rate-sensitive liabilities:
Money market deposit accounts		567,058			-			-			-			567,058
Time deposits		155,341			308,424			152,896			1,524			618,185
Savings accounts		56,410			-			-			-			56,410
Interest-bearing demand		152,656			-			-			-			152,656
Other borrowings		158,814			25,000			-			-			183,814
Subordinated debentures (1)		46,393			-			-			-			46,393
Total		1,136,672			333,424			152,896			1,524			1,624,516
Interest sensitivity gap	$	(109,199)		$	(196,370)		$	455,779		$	592,513		$	742,723
Cumulative interest sensitivity gap	$	(109,199)		$	(305,569)		$	150,210		$	742,723		$	742,723
Percentage of rate-sensitive assets
to rate-sensitive liabilities		90.39	%		41.11	%		398.10	%		38,978.81	%		145.72	%
Percentage of cumulative gap to
total assets		(4.41)	%		(12.34)	%		6.07	%		30.00	%		30.00	%

(1) TheSBI Capital Trust II preferred securities have an associated interest rate swap contractin the amount of $25 million witha  fixedinterest rate of 6.15%. The swap is a hedging instrument that in essence establishes a fixed interest rate until the contract expires on April 7, 2018.  Please see “Note 12:   Derivative Instruments” in the Notes to the Consolidated Financial Statements.

49

The percentage of rate-sensitive assets to rate-sensitive liabilities presents a static position as of a single day, is not necessarily indicative of our position at any other point in time, and does not take into account the sensitivity of yields and costs of specific assets and liabilities to changes in market rates. The foregoing analysis assumes that our mortgage-backed securities mature during the period in which they are estimated to be prepaid. No other prepayment or repricing assumptions have been applied to our interest-earning assets for this analysis.

A principal objective of our asset/liability management effort is to balance the various factors that generate interest rate risk, thereby maintaining our interest rate sensitivity within acceptable risk levels. To measure our interest rate sensitivity position, we utilize a simulation model that facilitates the forecasting of net interest income over the next twelve month period under a variety of interest rate and growth scenarios. 

The earnings simulation model uses numerous assumptions regarding the effect of changes in interest rates on the timing and extent of repricing characteristics, future cash flows, and customer behavior. These assumptions are inherently uncertain and, as a result, the model cannot precisely estimate net income. Actual results differ from simulated results due to the timing, magnitude, and frequency of interest rate changes and changes in market conditions, cash flows, and management strategies, among other factors.

The balance sheet is subject to quarterly testing for six alternative interest rate shock possibilities to indicate the inherent interest rate risk. Average interest rates are shocked by +/- 100, 200, and 300 basis points (“bp”), although we may elect not to use particular scenarios that we determine are impractical in a current rate environment. The down rate scenarios are considered impractical in the current environment and have thus been excluded from the tables below. It is management’s goal to structure the balance sheet so that net interest earnings at risk over a twelve-month period and the economic value of equity at risk do not exceed policy guidelines at various interest rate shock levels. 

Measures of net interest income at risk produced by simulation analysis are indicators of an institution’s short-term performance in alternative rate environments. These measures are typically based upon a relatively brief period, usually one year. They do not necessarily indicate the long-term prospects or economic value of the institution.

Estimated Change in Net Interest Income

Changes in Interest Rates:	+300 bp	+200 bp	+100 bp
December 31, 2016	17.41%	10.98%	4.32%
December 31, 2015	15.27%	9.43%	3.41%

When compared to December 31, 2015, net interest incomeimproved in each of the three interest rate scenarios. The measured changes in net interest income for all scenarios are in compliance with the established policy limits. 

The measures of equity value at risk indicate the ongoing economic value of equity considering the effects of interest rate changes on cash flows, and discounting the cash flows to estimate the present value of assets and liabilities. The difference between these discounted values of the assets and liabilities is the economic value of equity, which, in theory, approximates the fair value of our net assets.

Estimated Change in Economic Value of Equity (EVE)

Changes in Interest Rates:	+300 bp	+200 bp	+100 bp
December 31, 2016	4.07%	2.80%	1.43%
December 31, 2015	7.37%	4.35%	0.98%

As of December 31, 2016, the economic value of equity measure increased in one of the three interest rate scenarios when compared to December 31, 2015. The measured changes in economic value of equity for all scenarios are in compliance with the established policy limits.

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Item 8.  Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm

Audit Committee, Board of Directors and Shareholders

Southwest Bancorp, Inc.

Stillwater, Oklahoma

We have audited the accompanying consolidated statements of financial condition of Southwest Bancorp, Inc. (the Company) as of December 31, 2016and 2015, and the related consolidated statements of operations, comprehensive income, shareholders’ equity and cash flows for each of the years in the two-year period ended December 31, 2016. The Company’s management is responsible for these financial statements. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement. Our audits included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Southwest Bancorp, Inc. as of December 31, 2016and 2015, and the results of its operations and its cash flows for each of the years in the two-year period ended December 31, 2016, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of PCAOB, the Company’s internal control over financial reporting as of December 31, 2016,  based on criteria established in Internal Control – Integrated Framework (2013 edition),issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 9, 2017, expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

/s/ BKD LLP

Oklahoma City, Oklahoma

March 9, 2017

51

Report of Independent Registered Public Accounting Firm on the Consolidated Financial Statements

The Board of Directors and Shareholders of Southwest Bancorp, Inc. 

We have audited the accompanying Consolidated Statements of Operations, Comprehensive Income, Shareholders’ Equity, and Cash Flows of Southwest Bancorp, Inc. (the Company) for the yearended December 31, 2014. These statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these statements based on our audits.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion.

In our opinion, the statements referred to above present fairly, in all material respects,the consolidated results of operations and cash flows of Southwest Bancorp, Inc. for the year ended December 31, 2014, in conformity with U.S. generally accepted accounting principles.

/s/ Ernst & Young, LLP

Tulsa, Oklahoma

March 10, 2015

52

SOUTHWEST BANCORP, INC.

Consolidated Statementsof Financial Condition

	At December 31,
(Dollars in thousands)	2016		2015
Assets:
Cash and due from banks	$	36,831	$	24,971
Interest-bearing deposits		38,819		53,158
Cash and cash equivalents		75,650		78,129
Securities held to maturity (fair values of $10,677 and $12,282, respectively)		10,443		11,797
Securities available for sale (amortized cost of $427,113 and $401,136, respectively)		426,218		400,331
Loans held for sale		4,386		7,453
Loans receivable		1,872,746		1,771,976
Less:  Allowance for loan losses		(27,546)		(26,106)
Net loans receivable		1,845,200		1,745,870
Accrued interest receivable		6,194		5,767
Non-hedge derivative asset		1,235		1,793
Premises and equipment, net		22,808		23,819
Other real estate		350		2,274
Goodwill		13,545		13,467
Other intangible assets, net		5,790		6,615
Bank owned life insurance		28,575		27,676
Other assets		34,998		32,031
Total assets	$	2,475,392	$	2,357,022
Liabilities:
Deposits:
Noninterest-bearing demand	$	551,709	$	596,494
Interest-bearing demand		152,656		151,015
Money market accounts		567,058		534,357
Savings accounts		56,410		56,333
Time deposits of $100,000 or more		360,307		311,538
Other time deposits		257,878		234,368
Total deposits		1,946,018		1,884,105
Accrued interest payable		1,132		867
Non-hedge derivative liability		1,235		1,793
Other liabilities		10,171		11,684
Other borrowings		183,814		110,927
Subordinated debentures		46,393		51,548
Total liabilities		2,188,763		2,060,924
Shareholders' equity:
Common stock - $1 par value; 40,000,000 shares authorized;
21,230,714 and 21,138,028 shares issued, respectively		21,231		21,138
Additional paid-in capital		123,112		121,966
Retained earnings		184,840		173,210
Accumulated other comprehensive loss		(907)		(1,290)
Treasury stock, at cost, 2,555,987 and 1,131,226 shares, respectively		(41,647)		(18,926)
Total shareholders' equity		286,629		296,098
Total liabilities and shareholders' equity	$	2,475,392	$	2,357,022
The accompanying notes are an integral part of these statements.

53

SOUTHWEST BANCORP, INC.

Consolidated Statements of Operations

	For the year ended December 31,
(Dollars in thousands, except earnings per share data)	2016		2015		2014
Interest income:
Interest and fees on loans	$	81,527	$	67,644	$	64,224
Investment securities:
U.S. Government and agency obligations		1,104		1,186		1,490
Mortgage-backed securities		3,845		3,326		3,459
State and political subdivisions		1,383		1,212		1,171
Other securities		1,075		835		1,026
Other interest-earning assets		206		280		422
Total interest income		89,140		74,483		71,792
Interest expense:
Interest-bearing demand		243		153		146
Money market accounts		1,391		830		620
Savings accounts		74		44		38
Time deposits of $100,000 or more		2,031		910		1,428
Other time deposits		2,229		1,861		1,423
Other borrowings		1,379		984		900
Subordinated debentures		2,350		2,284		2,233
Total interest expense		9,697		7,066		6,788
Net interest income		79,443		67,417		65,004
Provision (credit) for loan losses		4,769		(3,566)		(6,624)
Net interest income after provision (credit) for loan losses		74,674		70,983		71,628
Noninterest income:
Service charges and fees		10,558		9,995		10,222
Other noninterest income		2,561		2,121		898
Gain on sale of bank branches, net		-		-		4,378
Gain on sales of mortgage loans, net		2,672		2,179		1,549
Gain on sales/calls of investment securities, net		294		162		1,884
Total noninterest income		16,085		14,457		18,931
Noninterest expense:
Salaries and employee benefits		37,724		34,850		31,830
Occupancy		11,059		9,359		9,193
Data processing		1,886		2,178		1,776
FDIC and other insurance		1,376		1,353		1,305
Other real estate, net		(222)		161		594
Provision (credit) for unfunded loan commitments		130		(255)		(380)
General and administrative		11,293		10,594		12,594
Total noninterest expense		63,246		58,240		56,912
Income before taxes		27,513		27,200		33,647
Taxes on income		9,809		9,793		12,617
Net income	$	17,704	$	17,407	$	21,030
Net income available to common shareholders	$	17,704	$	17,407	$	21,030
Basic earnings per common share	$	0.93	$	0.90	$	1.07
Diluted earnings per common share		0.92		0.90		1.06
Common dividends declared per share		0.32		0.24		0.16
The accompanying notes are an integral part of these statements.

54

SOUTHWEST BANCORP, INC.

Consolidated Statements of Comprehensive Income

	For the year ended December 31,
(Dollars in thousands)	2016		2015		2014
Net income	$	17,704	$	17,407	$	21,030
Other comprehensive income:
Unrealized gain (loss) on available for sale securities		204		(1,599)		5,784
Reclassification adjustment for net gains arising during the period		(294)		(162)		(1,884)
Change in fair value of derivative used for cash flow hedge		715		216		381
Other comprehensive income (loss), before tax		625		(1,545)		4,281
Tax (expense) benefit related to items of other comprehensive
income (loss)		(242)		650		(1,665)
Other comprehensive income (loss), net of tax		383		(895)		2,616
Comprehensive income	$	18,087	$	16,512	$	23,646
The accompanying notes are an integral part of these statements.

55

SOUTHWEST BANCORP, INC. 

Consolidated Statements of Cash Flows

	For the year ended December 31,
(Dollars in thousands)	2016		2015		2014
Operating activities:
Net income	$	17,704	$	17,407	$	21,030
Adjustments to reconcile net income to net cash provided by operating activities:
Provision (credit) for loan losses		4,769		(3,566)		(6,624)
Adjustments to other real estate		-		63		576
Deferred tax expense		556		2,116		9,180
Asset depreciation		2,814		2,468		2,829
Securities premium amortization, net of discount accretion		3,724		2,658		2,624
Amortization of intangibles		1,901		1,085		780
Restricted stock amortization expense		769		1,139		210
Net gain on sales/calls of investment securities		(294)		(162)		(1,884)
Net gain on sales of mortgage loans		(2,672)		(2,179)		(1,549)
Net (gain) loss on sales of premises/equipment		99		(16)		19
Net (gain) loss on sales of other real estate		(275)		123		(200)
Net gain from sale of bank branches		-		-		(4,378)
Bank owned life insurance		(899)		(523)		-
Proceeds from sales of held for sale loans		126,459		105,648		83,258
Held for sale loans originated for resale		(120,909)		(110,161)		(75,887)
Net changes in assets and liabilities:
Accrued interest receivable		(427)		(254)		311
Other assets		(5,130)		(1,886)		(4,152)
Excess tax expense from share-based payment arrangements		-		-		(2)
Accrued interest payable		265		57		(76)
Other liabilities		(1,473)		915		638
Net cash provided by operating activities		26,981		14,932		26,703
Investing activities:
Proceeds from sales of available for sale securities		43,593		-		1,419
Proceeds from principal repayments, calls and maturities:
Held to maturity securities		1,650		2,060		2,250
Available for sale securities		86,691		98,904		79,282
Redemptions of other investments		-		-		696
Purchases of held to maturity securities		(444)		(1,629)		(1,725)
Purchases of available for sale securities		(159,542)		(115,710)		(51,344)
Purchases of bank owned life insurance		-		(20,000)		-
Loans originated, net of principal repayments		(104,262)		(169,426)		(166,971)
Cash outflows from sale of bank branches, net		-		-		(94,806)
Cash received in business combinations, net of cash paid		-		12,284		-
Purchases of premises and equipment		(2,078)		(2,177)		(2,096)
Proceeds from sales of premises and equipment		176		76		99
Proceeds from sales of other real estate		2,681		1,185		1,401
Net cash used in investing activities		(131,535)		(194,433)		(231,795)
Financing activities:
Net increase in deposits		61,913		104,876		80,488
Net increase (decrease) in other borrowings		72,887		24,367		(1,253)
Net proceeds from issuance of common stock		1,239		682		385
Purchases of treasury stock		(22,721)		(8,624)		(10,302)
Redemption of trust preferred securities		(5,155)		-		-
Excess tax expense from share-based payment arrangements		-		-		2
Common stock dividends paid		(6,088)		(4,607)		(3,131)
Net cash provided by financing activities		102,075		116,694		66,189
Net decrease in cash and cash equivalents		(2,479)		(62,807)		(138,903)
Cash and cash equivalents:
Beginning of period		78,129		140,936		279,839
End of period	$	75,650	$	78,129	$	140,936
The accompanying notes are an integral part of these statements.

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SOUTHWEST BANCORP, INC.

Consolidated Statements of Shareholders’ Equity 

								Accumulated				Total
				Additional				Other				Share-
(Dollars in thousands,	Common Stock			Paid-in		Retained		Comprehensive			Treasury	holders'
except per share data)	Shares	Amount		Capital		Earnings		Income Gain/(Loss)			Stock	Equity
Balance, December 31, 2013	19,732,926	$	19,733	$	99,937	$	142,528	$	(3,011)	$	-	$	259,187
Dividends declared:
Common, $0.16 per share,	-		-		-		(3,131)		-		-		(3,131)
Net common stock issued under employee
plans and related tax expense	77,951		78		1,308		-		-		-		1,386
Other comprehensive income,
net of tax	-		-		-		-		2,616		-		2,616
Treasury shares purchased	(617,818)		-		-		-		-		(10,302)		(10,302)
Net income	-		-		-		21,030		-		-		21,030
Balance, December 31, 2014	19,193,059	$	19,811	$	101,245	$	160,427	$	(395)	$	(10,302)	$	270,786
Dividends declared:
Common, $0.24 per share,	-		-		-		(4,624)		-		-		(4,624)
Stock issued for Bancshares acquisition	1,213,985		1,214		20,152		-		-		-		21,366
Net common stock issued under employee
plans and related tax expense	113,166		113		569		-		-		-		682
Other comprehensive loss,
net of tax	-		-		-		-		(895)		-		(895)
Treasury shares purchased	(513,408)		-		-		-		-		(8,624)		(8,624)
Net income	-		-		-		17,407		-		-		17,407
Balance, December 31, 2015	20,006,802	$	21,138	$	121,966	$	173,210	$	(1,290)	$	(18,926)	$	296,098
Dividends declared:
Common, $0.32 per share,	-		-		-		(6,074)		-		-		(6,074)
Net common stock issued under employee
plans and related tax expense	92,686		93		1,146		-		-		-		1,239
Other comprehensive income,
net of tax	-		-		-		-		383		-		383
Treasury shares purchased	(1,424,761)		-		-		-		-		(22,721)		(22,721)
Net income	-		-		-		17,704		-		-		17,704
Balance, December 31, 2016	18,674,727	$	21,231	$	123,112	$	184,840	$	(907)	$	(41,647)	$	286,629

The accompanying notes are an integral part of these statements.

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SOUTHWEST BANCORP, INC.

Notes to the Consolidated Financial Statements

For the Years Ended December 31, 2016, 2015 and 2014

Note 1:Summary of Significant Accounting and Reporting Policies

Organization and Nature of Operations – Southwest Bancorp Inc. (“we”, “our”, “us”, or “Southwest”), incorporated in 1981, is a financial holding company headquartered in Stillwater, Oklahoma engaged primarily in commercial and retail financial services in the states of Oklahoma, Texas, Kansas, and Colorado. The accompanying consolidated financial statements include the accounts of Bank SNB, an Oklahoma banking corporation established in 1894, and the consolidated subsidiaries of Bank SNB. Bank SNB is a  wholly owned, direct subsidiary of ours.All significant intercompany balances and transactions have been eliminated in consolidation.

On October 9, 2015, we completed the acquisition of Bancshares through the merger of Bancshares with and into us. The Bancshares Merger was consummated pursuant to the Bancshares Merger Agreement dated as of May 27, 2015. The Bancshares Merger expanded our presence in the Oklahoma City metro area with five additional banking centers, increasing our total to ten. It also expanded our geographic footprint to Colorado with three full-service banking centers and one loan production office in Denver.

Basis of Presentation – The accounting and reporting policies conform to accounting principles generally accepted in the United States and to generally accepted practices within the banking industry. The Consolidated Financial Statements include the accounts of Southwest and all other entities in which we have a controlling financial interest. All significant intercompany accounts and transactions have been eliminated in consolidation.

Certain reclassifications have been made to prior year amounts on the Consolidated Statements of Operations to conform to current year presentation.

We have evaluated subsequent events for potential recognition and disclosure through the issue date of the Consolidated Financial Statements included in this Annual Report on Form 10-K. 

Management Estimates – In preparing our financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the dates shown on the Consolidated Statements of Financial Condition and revenues and expenses during the periods reported. Actual results could differ significantly from those estimates. Changes in economic conditions could affect the determination of material estimates such as the allowance for loan losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, income taxes, and the fair value of financial instruments.

Cash and Cash Equivalents – For purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from depository institutions, and federal funds sold. Interest-bearing balances held at depository institutions were $38.8 million at December 31, 2016 and $53.2 million at December 31, 2015. Federal funds sold are sold for one-to-four day periods.

Cash paid for interest totaled $9.7 million in 2016, $7.0 million in 2015, and $6.9 million in 2014. Cash paid for income taxes totaled  $9.4 million in 2016, $7.1 million in 2015, and $4.0 million in 2014. Noncash transactions included stock issued for the acquisition of Bancshares of $21.4 million in 2015 and transfer of loans to other real estate totaling $0.5 million in 2016 and $0.3 million in 2015 and $2.2 million in 2014.

Bank SNB is required by the FRB to maintain average reserve balances. Cash and cash equivalents in the Consolidated Statements of Financial Condition include restricted amounts of $1.0 million and $7.0 million at December 31, 2016 and December 31, 2015, respectively.

Investment Securities – Investments in debt and equity securities are identified as held to maturity or available for sale based on management considerations of asset/liability strategy, changes in interest rates and prepayment risk, the need to increase liquidity, and other factors, including management’s intent and ability to hold securities to maturity. We have the ability and intent to hold to maturity our investment securities classified as held to maturity. We had no investments held

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for trading purposes for any period presented. Under certain circumstances (including the deterioration of the issuer’s creditworthiness, a change in tax law, or statutory or regulatory requirements), we may change the investment security classification. The classifications we utilize determine the related accounting treatment for each category of investments. Available for sale securities are accounted for at fair value with unrealized gains or losses, net of taxes, excluded from operations and reported as accumulated other comprehensive income or loss. Held to maturity securities are accounted for at amortized cost. Securities with limited marketability, such as FRB stock, FHLB stock, and certain other investments, are carried at cost and included in other assets.

All investment securities are adjusted for amortization of premiums and accretion of discounts. Amortization of premiums and accretion of discounts are recorded to operations over the contractual maturity or estimated life of the individual investment using the level yield method. Gain or loss on sale of investments is based upon the specific identification method. Income earned on our investments in state and political subdivisions generally is not subject to ordinary Federal income tax.

In accordance with authoritative accounting guidance under ASC 320, Debt and Equity Securities, declines in fair value of held-to-maturity and available-for-sale securities below their cost that are deemed to be other-than-temporary are reflected in earnings as realized losses to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income. Under this guidance, we evaluate investment securities for other-than-temporary impairment on at least a quarterly basis, or more frequently when economic or market conditions warrant such an evaluation.

Federal Reserve Bank and Federal Home Loan Bank Stock – Bank SNB is a member of its regional FRB and FHLB system. FHLB members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional accounts. Both FRB and FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income.

Loans – Interest on loans is accrued and credited to operations based upon the principal amount outstanding. Loan origination fees and certain costs of originated loans are amortized as an adjustment to the yield over the term of the loan. Net unamortized deferred loan fees were  $2.5 million at December 31, 2016 and $1.5 million at 2015. Loans are reported at the principal balance outstanding net of the unamortized deferred loan fees.

In general, our policy for nonaccrual loans requires that accrued interest income on nonaccrual loans is written off after the loan is 90 days past due, and that subsequent interest income is recorded when cash receipts are received from the borrower. We identify past due loans based on contractual terms on a loan by loan basis. 

A loan is considered to be impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. The allowance for loan losses related to loans that are evaluated for impairment is based either on the discounted cash flows using the loan’s initial effective interest rate or on the fair value of the collateral for certain collateral dependent loans. Smaller balance, homogeneous loans, including mortgage, and consumer, are collectively evaluated for impairment. This evaluation is inherently subjective as it requires material estimates including the amounts and timing of future cash flows expected to be received on impaired loans that may be susceptible to significant change. 

Loans Held for Sale -- We originate real estate mortgage loans for either portfolio investment or sale in the secondary market. During the period of origination, real estate mortgage loans are designated as held either for investment purposes or sale. Mortgage loans held for sale are generally sold within a one-month period from loan closing at amounts determined by the investor commitment based upon the pricing of the loan.

Loans Acquired through Business Combination with Deteriorated Credit Quality  – The accounting guidance of ASC 310.30, Loan and Debt Securities Acquired with Deteriorated Credit Quality,  applies to loans acquired in a business combination that have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that we will be unable to collect all contractually required payment receivables. In accordance with this guidance, these loans are initially recorded at fair value (as determined by the present value of expected future cash flows) with no valuation allowance. The difference between the undiscounted cash flows expected at acquisition and the investment in the loan, or the “accretable yield”, is recognized as interest income over the life of the loan using a method

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that approximates the level-yield method. Contractually required payments for interest and principal that exceed the undiscounted cash flows expected at acquisition, or the “nonaccretable difference”, are not recognized as a yield adjustment, a loss accrual, or a valuation allowance. Increases in expected cash flows subsequent to the initial investment are recognized prospectively through adjustment of the yield on the loan over its remaining life. Decreases in expected cash flows are recognized as impairments. Valuation allowances on these impaired loans reflect only losses incurred after the acquisition.

Allowance for Loan Losses – The allowance for loan losses is a reserve established through a provision for loan losses charged to operations. Loan amounts which are determined to be uncollectible are charged against this allowance, and recoveries, if any, are added to the allowance. The appropriate amount of the allowance is based on continuous review and evaluation of the loan portfolio and ongoing, quarterly assessments of the probable losses inherent in the loan portfolio. The allowance for loan losses is determined in accordance with regulatory guidelines and generally accepted accounting principles and is comprised of two primary components, specific and general. Allocations of the allowance for loan losses may be made for specific loans, but the entire allowance is available for any loan that, in management’s judgment, should be charged off. 

The specific component relates to loans that are individually classified as impaired. Loans deemed to be impaired are evaluated on an individual basis consistent with ASC 310.10.35, Receivables:  Subsequent Measurement. The amount and level of the impairment allowance is ultimately determined by management’s estimate of the amount of expected future cash flows or, if the loan is collateral dependent, on the value of the collateral, which may vary from period to period depending on changes in the financial condition of the borrower or changes in the estimated value of the collateral. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and deemed as impaired, and classified as nonperforming, potential problem, or performing restructured as applicable. Charge-offs against the allowance for impaired loans are made when and to the extent the loan is deemed uncollectible. 

The general component of the allowance is calculated based on ASC 450, Contingencies. Loans not evaluated for specific allowance are segmented into loan pools by type of loan. The commercial real estate and real estate construction pools are further segmented by the market in which the loan collateral is located. Our primary markets are Oklahoma, Texas, Kansas, and Colorado, and loans secured by real estate in those states are included in the “in-market” pool, with the remaining defaulting to the “out-of-market” pool. Estimated allowances are based on historical loss trends with adjustments factored in based on qualitative risk factors both internal and external to us. The historical loss trend is determined by loan pool and segmentation and is based on the actual loss history experienced by us over the most recent three years. The qualitative risk factors include, but are not limited to, economic and business conditions, changes in lending staff, lending policies and procedures, quality of loan review, changes in the nature and volume of the portfolios, loss and recovery trends, asset quality trends, and legal and regulatory considerations. 

Independent appraisals on real estate collateral securing loans are obtained at origination. New appraisals are obtained periodically and upon discovery of factors that may significantly affect the value of the collateral. Appraisals usually are received within 30 days of request. Results of appraisals on nonperforming and potential problem loans are reviewed promptly upon receipt and also are reviewed monthly and considered in the determination of the allowance for loan losses. We are not aware of any significant time lapses in the process that have resulted, or would result in, a significant delay in determination of a credit weakness, the identification of a loan as nonperforming, or the measurement of an impairment.

Management strives to carefully monitor credit quality and to identify loans that may become nonperforming. At any time, however, there are loans included in the portfolio that will result in losses but that have not been identified as nonperforming or potential problem loans. Because the loan portfolio contains a significant number of commercial and commercial real estate loans with relatively large balances, the unexpected deterioration of one or a few of such loans may cause a significant increase in nonperforming assets and may lead to a material increase in charge-offs and the provision for loan losses in future periods.

Liability for Credit Losses on Unfunded Loan Commitments – Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. 

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The reserve for unfunded loan commitments is a liability on ourConsolidated Statements of Financial Condition in other liabilities. The reserve is computed using a methodology similar to that used to determine the allowance for loan losses, modified to take into account the probability of a drawdown on the commitment. At December 31, 2016 and 2015, the balances were  $2.5 million and $2.4 million, respectively.

Premises and Equipment – Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are recorded on a straight-line basis over the estimated useful life of each asset. Useful lives range from 10 years to 40 years for buildings and improvements, and 3 years to 10 years for furniture, fixtures, and equipment. We review the carrying value of long-lived assets used in operations when changes in events or circumstances indicate that the assets might have become impaired. If circumstances required, the review would initially include a comparison of carrying value to the undiscounted cash flows estimated to be generated by those assets. If this review indicates that an asset is impaired, wewould record a charge to operations to reduce the asset’s carrying value to fair value, which is based on estimated discounted cash flows. Long-lived assets that are held for disposal are valued at the lower of the carrying amount or fair value less costs to sell.

Other Real Estate – Assets acquired through or instead of loan foreclosure are considered other real estate. Other real estate is initially recorded at the lesser of the carrying value or fair value less the estimated costs to sell the asset. Write-downs of carrying value required at the time of foreclosure are recorded as a charge to the allowance for loan losses. Costs related to the development of such real estate are capitalized, and costs related to holding the property are expensed. Foreclosed property is subject to periodic revaluation based upon estimates of fair value. In determining the valuation of other real estate, management obtains independent appraisals for significant properties. Valuation adjustments are provided, as necessary, by charges to operations. Profits and losses from operations or sales of foreclosed property are recognized as incurred. At December 31, 2016 and 2015, the balances of other real estate were $0.4  million and $2.3 million, respectively.

Goodwill and Other Intangible Assets – Intangible assets consist of goodwill, core deposit intangibles, and loan servicing rights. Goodwill and core deposit intangibles, which generally result from a business combination, are accounted for under the provisions of ASC 350, Intangibles - Goodwill and Other, and ASC 805, Business Combinations. Loan servicing rights are accounted for under the provisions of ASC 860, Transfers and Servicing.

Goodwill represents the excess of the cost of businesses acquired over the fair value of the net assets acquired and is assigned to reporting units. Goodwill is not amortized, but is tested for impairment at least annually or more frequently if conditions indicate impairment may exist. The evaluation of possible impairment involves significant judgment based upon short-term and long-term projections of future performance of each reporting unit. 

Core deposit intangibles are amortized using an economic life method based on deposit attrition. As a result, amortization will decline over time with most of the amortization occurring during the initial years. The net book value of core deposit intangibles is adjusted for applicable branch sales, if any, and is evaluated for impairment when economic conditions indicate impairment may exist.

When real estate mortgage loans and other loans are sold with servicing retained, an intangible servicing right is initially capitalized based on estimated fair value at the point of origination with the income statement effect recorded in gains on sales of loans. The servicing rights are amortized over the period of estimated net servicing income. Impairment of loan servicing rights is assessed based on the fair value of those rights. We review the carrying value of loan servicing rights quarterly for impairment. At least annually, we obtain estimates of fair value from outside sources to corroborate the results of the valuation model. At December 31, 2016 and 2015, the fair values of loan servicing rights were $4.2 million and $3.7 million, respectively. 

Fair Value Measurements – ASC 820, Fair Value Measurements, defines fair value, establishes a framework for measuring fair value in accordance with generally accepted accounting principles, and expands disclosures about fair value measurements. In general, fair values of financial instruments are based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include amounts to reflect counterparty credit quality and our creditworthiness, among other things, as well as unobservable parameters. Any such valuation adjustments are applied consistently over time.

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Derivative Financial Instruments – Ourderivative credit risk policy and our hedging policy permits the use of various derivative financial instruments to manage interest rate risk or to hedge specified assets and liabilities. All derivatives are recorded at fair value on our balance sheet. 

To qualify for hedge accounting, derivatives must be highly effective at reducing the risk associated with the exposure being hedged and must be designated as a hedge at the inception of the derivative contract. We consider a hedge to be highly effective if the change in fair value of the derivative hedging instrument is within 80% to 125% of the opposite change in the fair value of the hedged item attributable to the hedged risk. If derivative instruments are designated as hedges of fair values, and such hedges are highly effective, both the change in the fair value of the hedge and the hedged item are included in current earnings. Fair value adjustments related to cash flow hedges are recorded in other comprehensive income and are reclassified to earnings when the hedged transaction is reflected in earnings. Ineffective portions of hedges are reflected in earnings as they occur. Actual cash receipts and/or payments and related accruals on derivatives related to hedges are recorded as adjustments to the interest income or interest expense associated with the hedged item. During the life of the hedge, we will formally assess whether derivatives designated as hedging instruments continue to be highly effective in offsetting changes in the fair value or cash flows of hedged items. If it is determined that a hedge has ceased to be highly effective, we will discontinue hedge accounting prospectively. At such time, previous adjustments to the carrying value of the hedged item are reversed into current earnings and the derivative instrument is reclassified to a trading position recorded at fair value.

Our qualified customers have the opportunity to participate in our interest rate swap program for the purpose of managing interest rate risk on their variable rate loans with us. If we enter into such agreements with customers, then offsetting agreements are executed between us and approved dealer counterparties to minimize our market risk from changes in interest rates. The counterparty contracts are identical to customer contracts in terms of notional amounts, interest rates, and maturity dates, except for a fixed pricing spread or fee paid to us by the dealer counterparty. These interest rate swaps carry varying degrees of credit, interest rate and market or liquidity risks. The fair value of such derivative instrumentsare recognized as either non-hedge derivative assets or liabilities in the Consolidated Statements of Financial Condition. 

Loan Servicing Income – We earn fees for servicing real estate mortgages and other loans owned by others. These fees are generally calculated on the outstanding principal balance of the loans serviced and are recorded as income when earned.

Taxes on Income – We file consolidated income tax returns with our subsidiaries. Income tax expense is the total of the current year income tax due or refundable, adjusted for permanent differences between items reported in the financial statements and those reported for tax purposes and the change in deferred tax assets and liabilities. Under the asset and liability method, deferred tax assets and liabilities are determined on the basis of the differences between the financial statements and tax basis of assets and liabilities using the enacted tax rates in effect for the year in which the differences are expected to reverse. The net deferred tax asset is reflected as a component of other assets on the Consolidated Statements of Financial Condition.

A valuation allowance, if needed, reduces deferred tax assets to the expected amount most likely to be realized. Realization of deferred tax assets is dependent upon the generation of a sufficient level of future taxable income and recoverable taxes paid in prior years. We recognize net deferred tax assets to the extent that we believe these assets are more likely than not to be realized. In making such determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies, and results of recent operations. Management reviewed all evidence and concluded that a valuation allowance was not needed.

Earnings per Common Share –  ASC 260,  Earnings Per Share, provides that unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and shall be included in the computation of earnings per share pursuant to the two-class method. We have determined that our unvested restricted stock awards are participating securities. Accordingly, earnings per common share is computed using the two-class method prescribed by ASC 260. Using this method, basic earnings per common share is computed based upon net income available to common shareholders divided by the weighted average number of common shares outstanding during each period, which exclude the outstanding unvested restricted stock. Diluted earnings per share is computed using the weighted average number of common shares determined for the basic earnings per common share computation plus the dilutive effect of restricted stock awards using the treasury stock method. Restricted stock awards, where the exercise price was greater than the average market price of common shares, were not included in the computation

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of earnings per diluted share as they would have been anti-dilutive. At December 31, 2016 and 2015, there were 6,573 and 38,145 anti-dilutive restricted stock awards outstanding, respectively. 

A reconciliation of the weighted-average common shares used in the calculations of basic and diluted earnings per common share for the reported periods is provided at“Note 15:  Earnings per Common Share” on page 86.  

Share-Based Compensation – The Southwest Bancorp, Inc. 2008 Stock Based Award Plan (the “2008 Stock Plan”), provides selected key employees with the opportunity to acquire common stock through stock options or restricted stock awards. Compensation cost is recognized based on the fair value of these awards at the date of grant. The exercise price of all options granted under the 2008 Stock Plan is the fair market value on the grant date, while the market price of our common stock at the date of grant is used for restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period. Depending upon terms of the stock option agreements, stock options generally become exercisable on an annual basis and expire from five to ten years after the date of grant.

The 2008 Stock Plan authorized awards for up to 800,000 shares of our common stock over its ten-year term.

Comprehensive Income – Our comprehensive income (net income plus all other changes in shareholders’ equity from non-equity sources) consists of our net income, the after tax effect of changes in the net unrealized gains (losses) in our available for sale securities, reclassification adjustments for net (gains) losses, and changes in the accumulated gain (loss) on the effective cash flow hedging instrument.

Simmons First National Corporation (Pending Merger)–On December 14, 2016, we entered into a Merger Agreement with Simmons, an Arkansas corporation, pursuant to which, and subject to its terms and conditions, Simmons will acquire all of our outstanding capital stock for $95.0 million in cash and 7,250,000 shares of Simmons’s common stock, representing an aggregate Merger consideration of approximately $564.4 million (based on Simmons’ common stock closing price as of December 13, 2016), subject to potential adjustments.

Simmons conducts banking operations through 150 financial centers located in communities throughout Arkansas, Kansas, Missouri and Tennessee. As of December 31, 2016, Simmons had $8.4 billion in total assets, $5.6 billion in loans and $6.7 billion in deposits. The completion of the Merger is subject to, among other things, regulatory and shareholder approval and other customary closing conditions.

Note 2:  Acquisitions

On October 9, 2015, we completed the acquisition of Bancshares, through the merger of Bancshares with and into us. The Bancshares Merger was consummated pursuant to the Bancshares Merger Agreement dated as of May 27, 2015. The Bancshares Merger expanded our presence in the Oklahoma City metro area with five additional banking centers, increasing our total to ten. It also expanded our geographic footprint to Colorado with threefull-service banking centers and one loan production office in Denver.

Under the terms of the Bancshares Merger Agreement, at the effective time of the Bancshares Merger, all outstanding shares of Bancshares common stock were converted into the right to receive an aggregate merger consideration of $41.8 million, 51% paid in shares of our common stock, representing an aggregate 1,213,985 shares of our common stock, plus cash in lieu of any fractional shares, and 49% paid in cash in an aggregate amount equal to $20.4 million. 

The Bancshares Merger added  $301.5 million in assets, $202.4 million in loans, $245.2 million in deposits, $12.3 million in goodwill, and $2.7 million in core deposit intangible.

In connection with the Bancshares Merger, First Commercial Bank was merged with and into Bank SNB, with Bank SNB the surviving bank, and all systems, products, and services were successfully integrated to our platform.

The following is a reconciliation of cash received from the acquisition of Bancshares as of the acquisition date:

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(Dollars in thousands)
Fair value of assets acquired	$	301,499
Liabilities assumed		(259,718)
Net assets acquired		41,781
Stock issued as consideration		(21,366)
Cash acquired		(32,699)
Cash received in business combination, net of cash paid	$	(12,284)

The acquisition of the net assets of Bancshares constitutes a business combination as defined by the FASB ASC Topic 805, Business Combinations. Accordingly, the assets acquired and liabilities assumedare presented at their fair values as required. Fair values were determined based on the requirements of FASB ASCTopic 820, Fair Value Measurements. In many cases, the determination of these fair values required management tomake estimates about discount rates, future expected cash flows, market conditions and other future events that arehighly subjective in nature and subject to change. The following schedule is a breakdown of the assets acquired andliabilities assumed as of the acquisition date:

	First Commercial Bancshares, Inc.
		Acquired from Bancshares		Fair Value Adjustments		Fair Value
(Dollars in thousands)
Assets, Acquired
Cash and due from banks	$	5,874	$	-	$	5,874
Interest-bearing deposits with other banks		17,196		-		17,196
Federal funds sold		9,629		-		9,629
Cash and cash equivalents		32,699		-		32,699
Investment securities		34,762		(184)		34,578
Loans		210,223		(7,790)		202,433
Allowance for loan losses		4,298		(4,298)		-
Total loans receivable		205,925		(3,492)		202,433
Bank premises and equipment, net		4,241		1,341		5,582
Cash value of life insurance		7,153		-		7,153
Accrued interest receivable		790		-		790
Deferred tax asset		1,650		15		1,665
Core deposit intangible		55		2,646		2,701
Other assets		1,644		-		1,644
Total assets acquired	$	288,919	$	326	$	289,245
Liabilities, Assumed
Deposits
Demand and non-interest bearing	$	101,464	$	-	$	101,464
Savings and interest-bearing transaction accounts		59,356		-		59,356
Time deposits		84,410		-		84,410
Total Deposits		245,230		-		245,230
Other borrowings		7,180		-		7,180
Accrued interest payable and other liabilities		1,833		320		2,153
Subordinated debentures		5,155		-		5,155
Total liabilities assumed		259,398		320		259,718
Equity
Equity		31,158		(31,158)		-
Total equity assumed		31,158		(31,158)		-
Total liabilities and equity assumed	$	290,556	$	(30,838)	$	259,718
Net assets acquired						29,527
Purchase price						41,781
Goodwill					$	12,254

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The following is a description of the methods used to determine the fair values of significant assets and liabilities presented above:

Cash and due from banks, interest-bearing deposits with other banks and federal funds sold– The carrying amount ofthese assets is a reasonable estimate of fair value based on the short-term nature of these assets.

Investment securities – Investment securities were acquired from Bancshares with a $0.2 million adjustment to marketvalue based upon quoted market prices or other observable inputs.

Loans – Fair values for loans were based on a discounted cash flow methodology that considered factors including the type of loan and related collateral, classification status, fixed or variable interest rate, term of loan and whether or not the loan was amortizing, and current discount rates. The discount rates used for loans are based on current market rates for new originations of comparable loans and include adjustments for liquidity concerns.

We evaluated $200.0million of the loans purchased in conjunction with the acquisition in accordance with the provisions of FASB ASC Topic 310-20, Nonrefundable Fees and Other Costs, and those loans were recorded with a $4.5million discount. As a result, the fair value discount on these loans is being accreted into interest income over theweighted average life of the loans using a constant yield method. The remaining $7.8 million of loans evaluated wereconsidered purchased credit impaired loans within the provisions of FASB ASC Topic 310-30, Loans and DebtSecurities Acquired with Deteriorated Credit Quality, and were recorded with a $3.3 million discount. These purchasedcredit impaired loans will recognize interest income through accretion of the difference between the carrying amount ofthe loans and the expected cash flows.

Bank premises and equipment – Bank buildings and landwere acquired with an adjustment to fair value. Other bank premises and equipment were acquired at the carrying amount of the assets.

Cash value of life insurance – Cash value of life insurance was acquired at market value.

Accrued interest receivable – Accrued interest receivable was acquired at market value.

Deferred tax asset – The current and deferred income tax assets and liabilities are recorded to reflect the differencesin the carrying values of the acquired assets and assumed liabilities for financial reporting purposes and the cost basisfor federal income tax purposes, at ourestimated federal income tax rate of 36.00%.

Goodwill – The consideration paid as a result of the acquisition exceeded the fair value of the net assets acquired;therefore, the Company recorded $12.3 million of goodwill. Goodwill established prior to the acquisition was written off.

Core deposit intangible – This intangible asset represents the value of the relationships that Bancshares had with its deposit customers. The fair value of this intangible asset was estimated based on a discounted cash flow methodologythat gave appropriate consideration to expected customer attrition rates, cost of the deposit base, and the netmaintenance cost attributable to customer deposits. The Company recorded $2.7 million of gross core deposit intangible.

Other assets – Other assets were acquired at carrying value, which approximates market value.

Deposits – The fair values used for the demand and savings deposits that comprise the transaction accounts acquired, by definition equal the amount payable on demand at the acquisition date. No fair value adjustment wasapplied for time deposits because the weighted average interest rate of Bancshare’s certificates of deposits were at themarket rates for similar funding at the time of acquisition

Other borrowings – The fair value of other borrowings is estimated based on borrowing rates currentlyavailable to us for borrowings with similar terms and maturities.

Accrued interest payable and other liabilities – The fair value used represents the adjustment of certain estimated liabilities from Bancshares.

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Subordinated debentures – Subordinated debentures were acquired at carrying value, which approximates market value.

The following unaudited pro forma condensed financial information presents our results of operations, including the effects of the purchase accounting adjustments and acquisition expenses, had the acquisition taken place at the beginning of the period presented:

		For the year ended December 31,
		2015(1)		2014
(Dollars in thousands except per share data)
Interest income	$	84,399	$	84,710
Interest expense		8,049		8,236
Net interest income		76,350		76,474
Provision for loan losses		(3,080)		(6,398)
Non-interest income		16,292		21,439
Non-interest expense (2)		68,860		67,779
Income before taxes		26,862		36,532
Income taxes		9,601		13,646
Net income		17,261		22,886
Earnings allocated to participating securities		(258)		(253)
Numerator for earnings per common share	$	17,003	$	22,633
Earnings per share:
Basic	$	0.90	$	1.10
Diluted		0.89		1.09
Basic weighted average shares outstanding		18,975,450		20,631,471
Diluted weighted average shares outstanding		19,129,533		20,774,348

(1)  Subsequent to the Bancshares Merger date, activity related to Bancshares contributed pre-tax revenues of $2.9 million and incurred pre-tax expenses of $1.2 million, resulting in $1.1 million total contribution to our net income. We incurred pre-tax non-recurring expenses totaling $1.9 million, including: $0.5 million in personnel related expenses, $0.4 million in data processing expenses, $0.5 million in legal, accounting and investment banker expenses, and $0.5 million in marketing and other expenses.

(2) The 2015 pro forma non-interest expense is adjusted to exclude $2.5 million of pre-tax non-recurring expenses incurred by Bancshares prior to the Bancshares Merger date attributed to the following: $0.7 million in employee related expenses, $0.4 million in legal expenses, and $1.4 million to discount a loan pursuant to a provision of the Bancshares Merger Agreement. 

Acquired Loans.  Changes in the carrying amounts and accretable yields for all ASC 310.30 loans were as follows for the year ended December 31, 2016 and 2015. 

	For the year ended December 31,
	2016				2015
			Carrying				Carrying
	Accretable		amount		Accretable		amount
(Dollars in thousands)	Yield		of loans		Yield		of loans
Balance at beginning of period	$	807	$	7,914	$	540	$	4,971
Acquisition		-		-		(11)		4,396
Payments received		-		(2,964)		1		(1,814)
Transfers to other real estate / repossessed assets		-		-		541		-
Net charge-offs		(11)		(318)		-		(81)
Net reclassifications to / from nonaccretable amount		-		-		240		-
Accretion		(166)		-		(504)		442
Balance at end of period	$	630	$	4,632	$	807	$	7,914

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Note 3:  Disposals

During the second quarter of 2014, we sold a banking center in Overland Park, Kansas, to Fidelity Bank in Wichita, Kansas, and banking centers in Anthony and Harper, Kansas, to BancCentral, National Association, in Alva, Oklahoma. The sold banking centers had combined total deposits of $130.6 million and loans of $27.9 million.

These transactions resulted in a net gain of $4.4 million, which is included under noninterest income in the gain on sale of bank branches, net  as a separate line item on the Consolidated Statements of Operations. 

During 2016, we closed a banking center in Colorado Springs, Colorado, a banking center in Fort Worth, Texas, and a banking center in Frisco, Texas. We incurred $0.4 million in restructuring charges due to the banking center closures.

Note 4:  Investment Securities

A summary of the amortized cost and fair values of investment securities follows:

	Amortized		Gross Unrealized				Fair
(Dollars in thousands)	Cost		Gains		Losses		Value
At December 31, 2016
Held to Maturity:
Obligations of state and political subdivisions	$	10,443	$	242	$	(8)	$	10,677
Total	$	10,443	$	242	$	(8)	$	10,677
Available for Sale:
Federal agency securities	$	69,691	$	201	$	(198)	$	69,694
Obligations of state and political subdivisions		46,105		461		(191)		46,375
Residential mortgage-backed securities		282,035		573		(1,966)		280,642
Asset-backed securities		9,265		-		(88)		9,177
Corporate debt		20,017		385		(72)		20,330
Total	$	427,113	$	1,620	$	(2,515)	$	426,218
At December 31, 2015
Held to Maturity:
Obligations of state and political subdivisions	$	11,797	$	488	$	(3)	$	12,282
Total	$	11,797	$	488	$	(3)	$	12,282
Available for Sale:
Federal agency securities	$	78,363	$	220	$	(373)	$	78,210
Obligations of state and political subdivisions		47,079		620		(134)		47,565
Residential mortgage-backed securities		240,804		936		(1,852)		239,888
Asset-backed securities		9,639		-		(224)		9,415
Corporate debt		25,251		148		(146)		25,253
Total	$	401,136	$	1,924	$	(2,729)	$	400,331

Residential mortgage-backed securities consist of agency securities underwritten and guaranteed by Government National Mortgage Association, Federal Home Loan Mortgage Corporation, and Federal National Mortgage Association. 

Securities with limited marketability, such as FRB stock, FHLB stock, and certain other investments, are carried at cost and included in other assets on our Consolidated Statements of Financial Condition. Total investments carried at cost were $14.6 million and  $10.4 million at December 31, 2016 and 2015, respectively. There are no identified events or changes in circumstances that may have a significant adverse effect on the investments carried at cost.  

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A comparison of the amortized cost and approximate fair value of our investment securities by maturity date at December 31, 2016 follows:  

	Available for Sale				Held to Maturity
	Amortized		Fair		Amortized		Fair
(Dollars in thousands)	Cost		Value		Cost		Value
One year or less	$	7,702	$	7,747	$	-	$	-
More than one year through five years		309,028		308,505		9,298		9,535
More than five years through ten years		76,505		75,976		1,145		1,142
More than ten years		33,878		33,990		-		-
Total	$	427,113	$	426,218	$	10,443	$	10,677

The foregoing analysis assumes that our residential mortgage-backed securities mature during the period in which they are estimated to prepay. No other prepayment or repricing assumptions have been applied to our investment securities for this analysis. 

Gain or loss on sale of investments is based upon the specific identification method. Sales of securities available for sale are as follows: 

(Dollars in thousands)		2016		2015		2014
Proceeds from sales	$	43,593	$	162	$	2,545
Gross realized gains		348		162		1,120
Gross realized losses		(54)		-		-

The following table shows securities with gross unrealized losses and their fair values by the length of time that the individual securities had been in a continuous unrealized loss position at December 31, 2016 and 2015. Securities whose market values exceed cost are excluded from this table. 

				Continuous Unrealized
		Amortized cost of		Loss Existing for:				Fair value of
	Number of	securities with		Less Than		More Than		securities with
(Dollars in thousands)	Securities	unrealized losses		12 Months		12 Months		unrealized losses
At December 31, 2016
Held to Maturity:
Obligations of state and political subdivisions	7	$	1,987	$	(8)	$	-	$	1,979
	7	$	1,987	$	(8)	$	-	$	1,979
Available for Sale:
Federal agency securities	13	$	34,734	$	(111)	$	(87)	$	34,536
Obligations of state and political subdivisions	36		18,283		(145)		(46)		18,092
Residential mortgage-backed securities	89		225,986		(1,618)		(348)		224,020
Asset-backed securities	3		9,265		-		(88)		9,177
Other Securities	2		5,005		-		(72)		4,933
Total	143	$	293,273	$	(1,874)	$	(641)	$	290,758
At December 31, 2015
Held to Maturity:
Obligations of state and political subdivisions	1	$	1,677	$	-	$	(3)	$	1,674
	1	$	1,677	$	-	$	(3)	$	1,674
Available for Sale:
Federal agency securities	14	$	42,438	$	(138)	$	(235)	$	42,065
Obligations of state and political subdivisions	14		11,765		(57)		(77)		11,631
Residential mortgage-backed securities	87		175,043		(1,247)		(605)		173,191
Asset-backed securities	3		9,639		(115)		(109)		9,415
Other Securities	6		14,987		(75)		(71)		14,841
Total	124	$	253,872	$	(1,632)	$	(1,097)	$	251,143

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We evaluate all securities on an individual basis for other-than-temporary impairment on at least a quarterly basis. Consideration is given to the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability of us to retain our investment in the issuer for a period of time sufficient to allow for an anticipated recovery in fair value. 

Management has the ability and intent to hold the securities classified as held to maturity in the table above until they mature, at which time we expect to receive full value for the securities. Furthermore, as of December 31, 2016, management does not have the intent to sell any of the securities classified as available for sale in the table above and believes that we will most likely not have to sell any such securities before a recovery of cost. The declines in fair value were attributable to increases in market interest rates over the yields available at the time the underlying securities were purchased or increases in spreads over market interest rates. Management does not believe any of the securities are impaired due to credit quality. Accordingly, as of December 31, 2016, management believes the impairment of these investments is not deemed to be other-than-temporary. 

As required by law, available for sale investment securities are pledged to secure public and trust deposits, sweep agreements, borrowings from the FHLB, and for other applicable purposes. Securities with an amortized cost of $199.0 million and $174.0 million were pledged to meet such requirements at December 31, 2016 and 2015, respectively. Any amount over-pledged can be released at any time.

Note 5:  Loans and Allowance for Loan Losses

We extend commercial and consumer credit primarily to customers in the states of Oklahoma, Texas, Kansas, and Colorado.  Our commercial lending operations are concentrated in Oklahoma City, Dallas, Tulsa, and other metropolitan markets in Texas, Kansas, Oklahoma, and Colorado. As a result, the collectability of our loan portfolio can be affected by changes in the economic conditions in those states and markets. Please see “Note 20:  Operating Segments” for more detail regarding loans by market. At December 31, 2016 and 2015, substantially all of our loans were collateralized with real estate, inventory, accounts receivable, and/or other assets or were guaranteed by agencies of the United States government. 

Our loan classifications were as follows: 

(Dollars in thousands)	At December 31, 2016		At December 31, 2015
Real estate mortgage:
Commercial	$	882,071	$	938,462
One-to-four family residential		199,123		161,958
Real estate construction:
Commercial		199,113		129,070
One-to-four family residential		20,946		21,337
Commercial		556,248		507,173
Installment and consumer		19,631		21,429
Total loans, including held for sale		1,877,132		1,779,429
Less allowance for loan losses		(27,546)		(26,106)
Total loans, net	$	1,849,586	$	1,753,323

Concentrations of Credit. At December 31, 2016,  $608.6 million, or 32%, and $423.8 million, or 23%, of our loans consisted of loans to individuals and businesses in the real estate and healthcare industries, respectively.  We do not have any other concentrations of loans to individuals or businesses involved in a single industry totaling 10% or more of total loans.

Loans Held for Sale.  We had loans which were held for sale of $4.4 million and $7.5 million at December 31, 2016 and 2015, respectively. The loans currently classified as held for sale, primarily residential mortgage loans, are carried at the lower of cost or market value.A substantial portion of the one-to-four family residential loans and loan servicing rights, if not retained, are primarily sold to one investor. These mortgage loans are generally sold within a one-month period from loan closing at amounts determined by the investor commitment based upon the pricing of the loan. 

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Loan Servicing.  We earn fees for servicing real estate mortgages and other loans owned by others. The fees are generally calculated on the outstanding principal balance of the loans serviced and are recorded as noninterest income when earned. The unpaid principal balance of real estate mortgage loans serviced for others totaled $460.1 million and $432.3 million at December 31, 2016 and 2015, respectively. Loan servicing rights are capitalized based on estimated fair value at the point of origination. The servicing rights are amortized over the period of estimated net servicing income.   

Nonperforming / Past Due Loans. The following table shows the recorded investment in loans on nonaccrual status. 

	At December 31,
(Dollars in thousands)	2016		2015
Real estate mortgage:
Commercial	$	6,471	$	3,543
One-to-four family residential		2,766		1,729
Real estate construction:
Commercial		522		562
One-to-four family residential		448		448
Commercial		5,949		13,491
Other consumer		111		85
Total nonaccrual loans	$	16,267	$	19,858

If interest on nonaccrual loans had been accrued, the interest income as reported in the accompanying Consolidated Statements of Operations would have increased by approximately $1.0 million, $0.8 million, and $0.7 million, for 2016, 2015, and 2014, respectively.

Net cumulative charge-offs against nonaccrual loans at December 31, 2016 and 2015were $3.3 million and  $6.1 million, respectively.

The following table shows the delinquency status of past due loans at the end of the respective reporting period.

			90 days and								Recorded loans
	30-89 days		greater		Total past				Total		> 90 days and
(Dollars in thousands)	past due		past due		due		Current		loans		accruing
At December 31, 2016
Real estate mortgage:
Commercial	$	24	$	6,472	$	6,496	$	875,575	$	882,071	$	-
One-to-four family residential		631		2,903		3,534		195,589		199,123		138
Real estate construction:
Commercial		-		522		522		198,591		199,113		-
One-to-four family residential		-		448		448		20,498		20,946		-
Commercial		2,530		6,142		8,672		547,576		556,248		193
Other		359		123		482		19,149		19,631		12
Total	$	3,544	$	16,610	$	20,154	$	1,856,978	$	1,877,132	$	343
At December 31, 2015
Real estate mortgage:
Commercial	$	272	$	3,992	$	4,264	$	934,198	$	938,462	$	449
One-to-four family residential		549		1,777		2,326		159,632		161,958		48
Real estate construction:
Commercial		-		493		493		128,577		129,070		-
One-to-four family residential		-		517		517		20,820		21,337		-
Commercial		278		13,491		13,769		493,404		507,173		-
Other		65		88		153		21,276		21,429		3
Total	$	1,164	$	20,358	$	21,522	$	1,757,907	$	1,779,429	$	500

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Impaired Loans. The following table presents loans individually evaluated for impairment by class of loans at the end of the respective reporting period.

	With No Specific Allowance				With A Specific Allowance
			Unpaid				Unpaid
	Recorded		Principal		Recorded		Principal		Related
(Dollars in thousands)	Investment		Balance		Investment		Balance		Allowance
At December 31, 2016
Commercial real estate	$	1,536	$	3,057	$	6,053	$	6,529	$	2,219
One-to-four family residential		1,188		1,535		1,593		1,698		63
Real estate construction		762		926		207		245		40
Commercial		1,032		2,861		4,963		7,480		1,346
Other		111		115		-		-		-
Total	$	4,629	$	8,494	$	12,816	$	15,952	$	3,668
At December 31, 2015
Commercial real estate	$	12,166	$	15,747	$	10,940	$	10,940	$	1,575
One-to-four family residential		1,688		2,195		185		186		11
Real estate construction		1,078		1,327		-		-		-
Commercial		4,095		5,430		9,844		15,968		2,526
Other		85		94		-		-		-
Total	$	19,112	$	24,793	$	20,969	$	27,094	$	4,112

The following table presents the average recorded investment and interest income recognized on impaired loans for the year ended December 31, 2016, 2015, and 2014.

	As of and for the year ended December 31,
	2016				2015				2014
	Average				Average				Average
	Recorded		Interest		Recorded		Interest		Recorded		Interest
(Dollars in thousands)	Investment		Income		Investment		Income		Investment		Income
Commercial real estate	$	7,394	$	750	$	25,044	$	970	$	30,257	$	968
One-to-four family residential		3,448		15		2,323		1		2,764		1
Real estate construction		1,050		14		997		-		222		-
Commercial		6,905		96		8,527		215		7,718		68
Other		52		3		51		-		16		-
Total	$	18,848	$	878	$	36,942	$	1,186	$	40,977	$	1,037

Included in interest income recognized on impaired loans are  $0.9 million, $1.2 million, and $1.0 million,  for December 31, 2016, 2015, and 2014, respectively.

Troubled Debt Restructurings. The loan portfolio also includes certain loans that have been modified in a troubled debt restructuring, where economic concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from loss mitigation activities and can include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance, or other actions. Troubled debt restructurings are classified as impaired at the time of restructuring and classified as nonperforming, potential problem, or performing restructured, as applicable. Loans modified in troubled debt restructurings may be returned to performing status after considering the borrowers’ sustained repayment for a reasonable period of at least six months. 

When we modify loans in a troubled debt restructuring, an evaluation of any possible impairment is performed similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, or use of the current fair value of the collateral, less selling costs for collateral dependent loans. If it is determined that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs, and unamortized premium or discount), an impairment is recognized through an allowance estimate or a charge-off to the allowance. In periods subsequent to modification, all loans modified in troubled debt restructurings are evaluated, including those that have payment defaults, for possible impairment. 

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Troubled debt restructured loans outstanding as of December 31, 2016 and 2015 are as follows: 

	At December 31, 2016				At December 31, 2015
(Dollars in thousands)	Accruing		Nonaccrual		Accruing		Nonaccrual
Commercial real estate	$	1,118	$	475	$	19,563	$	448
One-to-four family residential		15		46		13		48
Commercial		45		3,323		659		5,796
Total	$	1,178	$	3,844	$	20,235	$	6,292

At December 31, 2016 and 2015,  we had no significant commitments to lend additional funds to debtors whose loan terms have been modified in troubled debt restructuring.

Loans modified as troubled debt restructurings that occurred during the year ended December 31, 2016 and 2015 are shown in the following tables:  

	For the year ended December 31,
	2016				2015
	Number of		Recorded		Number of		Recorded
(Dollars in thousands)	Modifications		Investment		Modifications		Investment
Commercial real estate		1	$	164		-	$	-
Commercial		1		24		1		5,511
Total		2	$	188		1	$	5,511

The modifications of loans identified as troubled debt restructurings primarily related to payment extensions and/or reductions in the interest rate. The financial impact of troubled debt restructurings is not significant.   

As of December 31, 2016 and 2015, there were no loans modified as a troubled debt restructuring which subsequently defaulted. Default, for this purpose, is deemed to occur when a loan is 90 days or more past due or transferred to nonaccrual and is within twelve months of restructuring.   

Credit Quality Indicators.  To assess the credit quality of loans, we categorize loans into risk categories based on relevant information about the ability of the borrowers to service their debts such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. This analysis is performed on a quarterly basis. We use the following definitions for risk ratings:   

Special mention – Loans classified as special mention have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for these loans or of the institution’s credit position at some future date. 

Substandard – Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligors or of the collateral pledged, if any. Loans so classified have one or more well-defined weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected. These loans are considered potential problem or nonperforming loans depending on the accrual status of the loans. 

Doubtful – Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristics that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. These loans are considered nonperforming. 

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Loans not meeting the criteria above that are analyzed as part of the above described process are considered to be pass rated loans. As of December 31, 2016 and 2015, based on the most recent analysis performed as of those dates, the risk category of loans by class is as follows: 

	Commercial		1-4 Family		Real Estate
(Dollars in thousands)	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2016
Grade:
Pass	$	857,290	$	192,395	$	210,780	$	498,039	$	19,518	$	1,778,022
Special Mention		4,479		1,983		7,720		24,639		-		38,821
Substandard		20,302		4,745		1,559		33,175		113		59,894
Doubtful		-		-		-		395		-		395
Total	$	882,071	$	199,123	$	220,059	$	556,248	$	19,631	$	1,877,132
At December 31, 2015
Grade:
Pass	$	902,034	$	157,912	$	148,811	$	480,928	$	21,284	$	1,710,969
Special Mention		5,916		29		586		2,941		50		9,522
Substandard		30,512		4,017		1,010		18,848		95		54,482
Doubtful		-		-		-		4,456		-		4,456
Total	$	938,462	$	161,958	$	150,407	$	507,173	$	21,429	$	1,779,429

Allowance for Loan Losses. The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment evaluation method as of December 31, 2016, 2015 and 2014.  

	Commercial		1-4 Family		Real Estate
(Dollars in thousands)	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2016
Balance at beginning of period	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Loans charged-off		(193)		(134)		-		(6,148)		(522)		(6,997)
Recoveries		400		77		-		3,079		112		3,668
Provision (credit) for loan losses		(416)		520		969		3,162		534		4,769
Balance at end of period	$	12,507	$	1,163	$	3,502	$	10,058	$	316	$	27,546
Allowance for loan losses ending balance:
Individually evaluated for impairment	$	2,219	$	63	$	-	$	1,346	$	-	$	3,628
Collectively evaluated for impairment		10,288		1,100		3,462		8,712		316		23,878
Acquired with deteriorated credit quality		-		-		40		-		-		40
Total ending allowance balance	$	12,507	$	1,163	$	3,502	$	10,058	$	316	$	27,546
Loans receivable ending balance:
Individually evaluated for impairment	$	6,606	$	1,766	$	390	$	5,357	$	-	$	14,119
Collectively evaluated for impairment		872,997		196,123		219,015		550,615		19,631		1,858,381
Acquired with deteriorated credit quality		2,468		1,234		654		276		-		4,632
Total ending loans balance	$	882,071	$	199,123	$	220,059	$	556,248	$	19,631	$	1,877,132

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	Commercial		1-4 Family		Real Estate
	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2015
Balance at beginning of period	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Loans charged-off		(489)		(20)		(21)		(628)		(193)		(1,351)
Recoveries		282		558		47		1,479		205		2,571
Provision (credit) for loan losses		(755)		(550)		(1,652)		(500)		(109)		(3,566)
Balance at end of period	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Allowance for loan losses ending balances:
Individually evaluated for impairment	$	1,575	$	11	$	-	$	2,526	$	-	$	4,112
Collectively evaluated for impairment		11,141		689		2,533		7,439		192		21,994
Acquired with deteriorated credit quality		-		-		-		-		-		-
Total ending allowance balance	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Loans receivable ending balance:
Individually evaluated for impairment	$	20,332	$	695	$	391	$	13,396	$	47	$	34,861
Collectively evaluated for impairment		913,242		159,672		149,344		493,026		21,370		1,736,654
Acquired with deteriorated credit quality		4,888		1,591		672		751		12		7,914
Total ending loans balance	$	938,462	$	161,958	$	150,407	$	507,173	$	21,429	$	1,779,429

	Commercial		1-4 Family		Real Estate
	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2014
Balance at beginning of period	$	18,854	$	850	$	5,523	$	10,985	$	451	$	36,663
Loans charged-off		(1,400)		(289)		(655)		(4,014)		(558)		(6,916)
Recoveries		3,733		213		-		1,119		264		5,329
Provision (credit) for loan losses		(7,509)		(62)		(709)		1,524		132		(6,624)
Balance at end of period	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Allowance for loan losses ending balances:
Individually evaluated for impairment	$	2,047	$	-	$	-	$	1,822	$	-	$	3,869
Collectively evaluated for impairment		11,631		712		4,159		7,792		289		24,583
Acquired with deteriorated credit quality		-		-		-		-		-		-
Total ending allowance balance	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Loans receivable ending balance:
Individually evaluated for impairment	$	23,907	$	538	$	104	$	13,560	$	2	$	38,111
Collectively evaluated for impairment		725,635		75,598		196,905		336,818		21,953		1,356,909
Acquired with deteriorated credit quality		3,429		1,395		114		32		1		4,971
Total ending loans balance	$	752,971	$	77,531	$	197,123	$	350,410	$	21,956	$	1,399,991

Note 6:  Premises and Equipment

Year-end premises and equipment were as follows:

	At December 31,
(Dollars in thousands)	2016		2015
Land	$	6,630	$	6,630
Buildings and improvements		25,861		25,219
Furniture, fixtures, and equipment		32,409		30,813
Construction/remodeling in progress		38		965
		64,938		63,627
Accumulated depreciation and amortization		(42,130)		(39,808)
Total premises and equipment, net	$	22,808	$	23,819

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Depreciation of premises and equipment totaled$2.8 million in 2016,  $2.5 million in 2015, and $2.8 million in 2014.

We lease certain equipment and premises for our operations. Future minimum annual rental payments required under operating leases, net of sublease agreements, that have initial or remaining lease terms in excess of one year as of December 31, 2016 were as follows: 

(Dollars in thousands)
2017	$	2,723
2018		2,277
2019		2,091
2020		2,016
2021		1,333
Thereafter		2,822
Total	$	13,262

The total rental expense was $3.6 million, $2.9 million, and $2.4 million in 2016, 2015, and 2014, respectively.

Note 7:  Goodwill and Other Intangible Assets

We have recorded goodwill and other identifiable intangible assets associated with purchase business combinations. Goodwill is not amortized, but is periodically evaluated for impairment. We perform an annual goodwill impairment test each year and assess qualitative factors on a quarterly basis that would indicate events or circumstances that an impairment might have taken place.

At December 31, 2016 and 2015, goodwill totaled $13.5 million, of which  $12.5 million of goodwill is reported in the Oklahoma Banking segment and $1.0 million is reported in the Texas Banking segment.  In 2015, $12.3 million of goodwill was recorded as a result of the acquisition of Bancshares. Further information regarding operating segments can be found in “Note 20 Operating Segments”.

Based on our annual goodwill impairment test through December 31, 2016, management does not believe any of its goodwill is impaired as of December 31, 2016.  We did not recognize an impairment during the years ended December 31, 2016, 2015 and 2014.

The following table presents the gross carrying amount of other intangible assets and accumulated amortization.

	At December 31,
(Dollars in thousands)	2016		2015
Core deposit premiums	$	6,119	$	6,119
Less accumulated amortization		(3,820)		(3,225)
Core deposit premiums, net		2,299		2,894
Loan servicing rights		14,710		13,635
Less accumulated amortization		(11,219)		(9,914)
Loan servicing rights, net		3,491		3,721
Other intangible assets, net	$	5,790	$	6,615

Core deposit intangibles are amortized using an economic life method based on deposit attrition. As a result, amortization will decline over time with most of the amortization occurring during the initial years. The weighted average amortization period for core deposit intangibles is approximately 10 years. Amortization expense related to core deposit intangibles totaled $0.6 million in 2016, $0.3  million in 2015, and $0.4 million in 2014.In 2015, $2.7 million of core deposit intangibles was recorded as a result of the acquisition of Bancshares.  As of December 31, 2016, economic conditions did not indicate that impairment existed for the core deposit intangibles and therefore no impairment evaluation was performed. We did not recognize any impairment during the years ended December 31, 2016,  2015, and 2014.

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During 2016, 2015, and 2014,  we had recorded loan servicing rights amortization expense of $0.7 million, $0.6 million, and $0.4 million, respectively. As of December 31, 2016, mortgage loan servicing rights had a fair value of $4.2 million, which exceeded the book value of $3.5 million. Because the fair value exceeded the book value, there was no impairment charge at December 31, 2016. During the first three quarters of 2016, the mortgage loan servicing rights were written down to their fair values, resulting in total impairment charges of $0.6 million, which was included in noninterest income. As of December 31, 2015, mortgage loan servicing rights were written down to their fair values, resulting in an impairment charge of$0.1 million, which was included in noninterest income. We did not recognize any impairment during the year ended December 31, 2014.

The estimated aggregate future amortization expense for other intangible assets remaining as of December 31, 2016 is as follows:

(Dollars in thousands)	Core Deposit Premiums		Loan Servicing Rights		Total
2017	$	451	$	654	$	1,105
2018		391		571		962
2019		386		478		864
2020		386		396		782
2021		386		323		709
Thereafter		299		1,069		1,368
	$	2,299	$	3,491	$	5,790

Note 8:  Fair Value Measurements

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. In estimating fair value, we utilize valuation techniques that are consistent with the market approach, the income approach, and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability.   

ASC 820, Fair Value Measurements, establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: 

Level 1Quoted prices in active markets for identical instruments. 

Level 2Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.   

Level 3Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.   

The estimated fair value amounts have been determined by us using available market information and appropriate valuation methodologies. However, considerable judgment is required to interpret market data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amount we could realize in a current market exchange. The use of different market assumptions and/or estimation methodologies could have a material effect on the estimated fair value amounts. There were no significant changes in valuation methods used to estimate fair value during the year ended December 31, 2016. 

A description of the valuation methodologies used for instruments measured at fair value on a recurring basis is as follows: 

Available for sale securities – The fair value of U.S. Government and federal agency securities, equity securities, and residential mortgage-backed securities is estimated based on quoted market prices or dealer quotes. The fair value of

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other investments such as obligations of state and political subdivisions is estimated based on quoted market prices, when available.  We obtain fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information, and bond’s terms and conditions, among other things. We review the prices supplied by the independent pricing service, as well as their underlying pricing methodologies, for reasonableness and to ensure such prices are aligned with traditional pricing matrices. 

Derivative instruments – We utilize an interest rate swap agreement to convert one of our variable-rate subordinated debentures to a fixed rate. This has been designated as a cash flow hedge. During 2014, we began offering an interest rate swap program that permits qualified customers to manage interest rate risk on variable rate loans with Bank SNB. Derivative contracts are executed between our customers and Bank SNB. Offsetting contracts are executed by Bank SNB and approved counterparties. The counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to us. The fair value of the interest rate swap agreements are obtained from dealer quotes.

The following table summarizes financial assets measured at fair value on a recurring basis as of December 31, 2016 and 2015. 

			Fair Value Measurement at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
(Dollars in thousands)	Total		(Level 1)		(Level 2)		(Level 3)
At December 31, 2016
Available for sale securities:
Federal agency securities		69,694		-		69,694		-
Obligations of state and political subdivisions		46,375		-		46,375		-
Residential mortgage-backed securities		280,642		-		280,642		-
Asset-backed securities		9,177		-		9,177		-
Corporate debt		20,330		213		20,117		-
Derivative asset		1,235				1,235
Derivative liability		(1,890)		-		(1,890)		-
Total	$	425,563	$	213	$	425,350	$	-
At December 31, 2015
Available for sale securities:
Federal agency securities		78,211		-		78,211		-
Obligations of state and political subdivisions		47,564		-		47,564		-
Residential mortgage-backed securities		239,888		-		239,888		-
Asset-backed securities		9,415		-		9,415		-
Corporate debt		25,253		137		25,116		-
Derivative asset		1,793				1,793		-
Derivative liability		(3,163)		-		(3,163)		-
Total	$	398,961	$	137	$	398,824	$	-

Certain financial assets are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). These assets are recorded at the lower of cost or fair value. Valuation methodologies for assets measured on a nonrecurring basis are as follows: 

Impaired loans – Certain impaired loans are reported at the fair value of the underlying collateral if repayment is expected solely from collateral. Collateral values are estimated using Level 3 inputs based on third-party appraisals. Certain other impaired loans are remeasured and reported through a specific valuation allowance allocation of the allowance for loan losses based upon the net present value of cash flows.

Loans held for sale – Real estate mortgage loans held for sale are carried at the lower of cost or market, which is determined on an individual loan basis. The fair value of loans held for sale is based on existing investor commitments.

Other real estate – Other real estate fair value is based on third-party appraisals for properties less the estimated costs to sell the asset.   

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Goodwill – Fair value of goodwill is based on the fair value of each of our reporting units to which goodwill is allocated compared with their respective carrying value. There has been no impairment during 2016 or 2015; therefore, no fair value adjustment was recorded through earnings. 

Core deposit premiums  –There has been no impairment during 2016 or 2015; therefore, no fair value adjustment was recorded through earnings. 

Mortgage loan servicing rights – Mortgage loan servicing rights are carried at the lower of cost or market. There is no active trading market for loan servicing rights. The fair value of loan servicing rights is estimated by calculating the present value of net servicing revenue over the anticipated life of each loan. A cash flow model is used to determine fair value. Key assumptions and estimates, including projected prepayment speeds and assumed servicing costs, earnings on escrow deposits, ancillary income, and discount rates, used by this model are based on current market sources. A separate third party model is used to estimate prepayment speeds based on interest rates, housing turnover rates, estimated loan curtailment, anticipated defaults, and other relevant factors. The prepayment model is updated for changes in market conditions.

Assets that are measured at fair value on a nonrecurring basis as of December 31, 2016 and 2015 are summarized below.   

			Fair Value Measurements Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
(Dollars in thousands)	Total		(Level 1)		(Level 2)		(Level 3)
At December 31, 2016
Impaired loans at fair value :
Commercial real estate	$	6,053	$	-	$		$	6,053
One-to-four family residential		1,593		-		-		1,593
Real estate construction		207		-		-		207
Commercial		5,357		-				5,357
Loans held for sale:
One-to-four family residential		4,386		-		4,386		-
Total	$	17,596	$	-	$	4,386	$	13,210
At December 31, 2015
Impaired loans at fair value :
Commercial real estate	$	11,182	$	-	$		$	11,182
One-to-four family residential		185		-		-		185
Real estate construction		390		-		-		390
Commercial		9,845		-				9,845
Loans held for sale:
One-to-four family residential		7,453		-		7,453		-
Other real estate		2,274		-		-		2,274
Mortgage loan servicing rights		3,721		-		3,721		-
Total	$	35,050	$	-	$	11,174	$	23,876

Impaired loans measured at fair value with a carrying amount of $19.7 million were written down to a fair value of $13.2 million, resulting in a life-to-date impairment of $6.5 million. As of December 31, 2015, impaired loans measured at fair value with a carrying amount of $25.9 million were written down to the fair value of $21.6 million at December 31, 2015, resulting in a life-to-date impairment charge of $4.3 million.

No impairment was recognized for other real estate during the period ended December 31, 2016.As of December 31, 2015, other real estate assets were written down to their fair values, resulting in an impairment charge of approximately $0.1 million, which was included in noninterest expense for the year ended December 31, 2015. 

As of December 31, 2016, mortgage loan servicing rights had a fair value of $4.2 million, which exceeded the book value of $3.5 million. Because the fair value exceeded the book value, there was no impairment charge at December 31, 2016. During the first three quarters of 2016, the mortgage loan servicing rights were written down to their fair values, resulting in total impairment charges of $0.6 million, which was included in noninterest income.  As of December 31, 2015,

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mortgage loan servicing rights were written down to their fair values, resulting in an impairment charge of$0.1 million, which was included in noninterest income.

ASC 825, Financial Instruments, requires an entity to provide disclosures about fair value of financial instruments, including those that are not measured and reported at fair value on a recurring or nonrecurring basis. The methodologies used in estimating the fair value of financial instruments that are measured on a recurring or nonrecurring basis are discussed above. The methodologies for the other financial instruments are discussed below: 

Cash and cash equivalents – For cash and cash equivalents, the carrying amount is a reasonable estimate of fair value. 

Securities held to maturity – The investment securities held to maturity are carried at cost. The fair value of the held to maturity securities is estimated based on quoted market prices or dealer quotes. 

Loans, net of allowance – Fair values are estimated for certain homogenous categories of loans adjusted for differences in loan characteristics. Our loans have been aggregated by categories consisting of commercial, real estate, and other consumer. The fair value of loans is estimated by discounting the cash flows using risks inherent in the loan category and interest rates currently offered for loans with similar terms and credit risks. 

Accrued interest receivable – The carrying amount is a reasonable estimate of fair value for accrued interest receivable. 

Investments included in other assets – The estimated fair value of investments included in other assets, which primarily consists of investments carried at cost, approximates their carrying values. 

Deposits – The fair value of demand deposits, savings accounts, and certain money market deposits is the amount payable on demand at the statement of financial condition date. The fair value of fixed maturity certificates of deposit is estimated using the rates currently offered for deposits of similar remaining maturities. 

Other liabilities and accrued interest payable – The estimated fair value of other liabilities, which primarily includes trade accounts payable, employee benefits, and accrued interest payable, approximates their carrying values. 

Other borrowings – Included in other borrowings are FHLB advances and securities sold under agreements to repurchase. The fair value for fixed rate FHLB advances is based upon discounted cash flow analysis using interest rates currently being offered for similar instruments. The fair values of other borrowings are the amounts payable at the statement of financial condition date, as the carrying amount is a reasonable estimate of fair value due to the short-term maturity rates.   

Subordinated debentures – All subordinated debentures have floating rates that reset quarterly.  The fair value of the floating rate subordinated debentures approximates carrying value at December 31, 2016 and December 31, 2015. 

The carrying values and estimated fair values of our financial instruments segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value are as follows:

	At December 31, 2016				At December 31, 2015
	Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Values		Values		Values		Values
Financial assets:
Level 2 inputs:
Cash and cash equivalents	$	75,650	$	75,650	$	78,129	$	78,129
Securities held to maturity		10,443		10,677		11,797		12,282
Accrued interest receivable		6,194		6,194		5,767		5,767
Mortgage loan servicing rights		3,491		4,159		3,721		3,721
Bank-owned life insurance		28,575		28,575		27,676		27,676
Investments included in other assets		14,627		14,627		10,383		10,383
Level 3 inputs:
Total loans, net of allowance		1,849,586		1,839,960		1,753,323		1,728,114
Financial liabilities:
Level 2 inputs:
Deposits		1,946,018		1,897,927		1,884,105		1,780,954
Accrued interest payable		1,132		1,132		867		867
Other liabilities		9,516		9,516		10,314		10,314
Other borrowings		183,814		183,926		110,927		112,149
Subordinated debentures		46,393		46,393		51,548		51,548

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Note 9:  Deposits

The following table summarizes deposits as of December 31, 2016 and 2015.

(Dollars in thousands)	2016		2015
Noninterest-bearing demand	$	551,709	$	596,494
Interest-bearing demand		152,656		151,015
Money market accounts		567,058		534,357
Savings accounts		56,410		56,333
Time deposits of $100,000 or more		360,307		311,538
Other time deposits		257,878		234,368
Total deposits	$	1,946,018	$	1,884,105

The total amount of overdrawn deposit accounts that were reclassified as loans atDecember 31, 2016 and 2015 was $0.3 million for both years.

The aggregate amounts of time deposits in denominations of $250,000 or more at December 31, 2016 and 2015 were $122.0 million and $95.4 million, respectively.

Some of our interest-bearing deposits were obtained through brokered transactions and we participate in the Certificate of Deposit Account Registry Service (“CDARS”). CDARS deposits totaled $29.0 million at December 31, 2016 and $22.5 million at December 31, 2015.  There were capital market certificate of deposits of $35.6 million at December 31, 2016 and $17.3 million at December 31, 2015.

Scheduled time deposit maturities as of December 31, 2016 are as follows: 

(Dollars in thousands)
2017	$465,324
2018	115,862
2019	22,025
2020	8,372
2021	6,575
Thereafter	27
Total time deposits	$618,185

Note 10:  Borrowed Funds

We have available various forms of other borrowings for cash management and liquidity purposes. These forms of borrowings include short-term federal funds purchased and securities sold under agreements to repurchase, and advances from the FHLB and the FRB. The following table summarizes borrowed funds for the periods indicated:

	2016						2015
(Dollars in thousands)	Balance at December 31		Average Balance		Weighted Average Rate		Balance at December 31		Average Balance		Weighted Average Rate
Securities sold under repurchase
agreements	$	45,814	$	45,812	0.05	%	$	37,273	$	44,218	0.07	%
Federal Home Loan Bank advances		138,000		97,569	1.31			73,654		28,289	3.11
	$	183,814					$	110,927

We have approved federal funds purchase lines totaling $60.0 million  with three financial entities. We sell securities under agreements to repurchase with us retaining custody of the collateral. Collateral consists of direct obligations of U.S. Government and Federal Agency issues, which are designated as pledged with our safekeeping agent. The type of

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collateral required, the retention of the collateral, and the security sold, minimize our risk of exposure to loss. These transactions are for one-to-four day periods. At December 31, 2016 and 2015, the amount of collateral pledged is $61.5 million and $58.9 million, respectively.

We have entered into an agreement with the FHLB to obtain advances from the FHLB from time to time. At December 31, 2016,  Bank SNB had an outstanding balance of  $138.0 million in advances from the FHLB. The terms of the agreement are set forth in the Advance, Pledge and Security Agreement between Bank SNB and FHLB (the “Agreement”). The FHLB requires that we pledge collateral on such advances. Under the terms of the Agreement, the discounted value of the collateral, as defined by the FHLB, should at all times be at least equal to the amount borrowed by us. Such advances outstanding are subject to a blanket collateral arrangement, which requires the pledging of eligible collateral to secure such advances. Such collateral principally includes certain loans and securities. At December 31, 2016 and 2015, loans pledged under the Agreement were $577.7 million and $447.9 million, and investment securities pledged (at carrying value) were $0 for both years. Scheduled minimum future principal payments to the FHLB as of December 31, 2016 are as follows: $138.0million in 2017.

We are qualified to borrow funds from the FRB through their Borrower-In-Custody program. Collateral under this program consists of pledged selected commercial and industrial loans. Currently, the collateral will allow us to borrow up to $106.7 million.At December 31, 2016 and 2015, we had no outstanding FRB borrowings.

Note 11:  Trust Preferred Securities and Subordinated Debentures

At December 31, 2016 and 2015,  wehad the following issues of trust preferred securities outstanding and subordinated debentures owed to the Trusts.

At December 31, 2016
(Dollars in thousands)		Subordinated Debentures Owed to Trusts		Trust Preferred Securities of the Trusts	Rates	Final Maturity Date
OKSB Statutory Trust I	$	20,619	$	20,000	4.10%	June 26, 2033
SBI Capital Trust II		25,774		25,000	3.73%	October 7, 2033
	$	46,393	$	45,000

At December 31, 2015
(Dollars in thousands)		Subordinated Debentures Owed to Trusts		Trust Preferred Securities of the Trusts	Rates	Final Maturity Date
OKSB Statutory Trust I	$	20,619	$	20,000	3.70%	June 26, 2033
SBI Capital Trust II		25,774		25,000	3.17%	October 7, 2033
FCBI Statutory Trust I		5,155		5,000	3.33%	September 4, 2033
	$	51,548	$	50,000

On June 26, 2003, our subsidiary, OKSB Statutory Trust I, sold to investors in a private placement offering $20.0 million of adjustable rate trust preferred securities (the “OKSB Trust Preferred”). The OKSB Trust Preferred bear interest, adjustable quarterly, at 90-day LIBOR plus 3.10%. In addition to these adjustable rate securities, OKSB Statutory Trust I sold $0.6 million of trust common equity to Southwest. The aggregate proceeds of $20.6 million were used to purchase an equal principal amount of adjustable rate subordinated debentures that bear interest, adjustable quarterly, at 90-day LIBOR plus 3.10% (the “OKSB Subordinated Debentures”). After deducting underwriter’s compensation and noninterest expenses of the offering, the net proceeds were available to us to increase capital and for general corporate purposes. Interest payments on the OKSB Subordinated Debentures are deductible for federal income tax purposes.

On October 14, 2003, our subsidiary, SBI Capital Trust II, sold to investors in a private placement offering $25.0 million of adjustable rate trust preferred securities (the “SBI II Trust Preferred”). The SBI II Trust Preferred bear interest, adjustable quarterly, at 90-day LIBOR plus 2.85%. In addition to these adjustable rate securities, SBI Capital Trust II sold $0.8 million of trust common equity to us. The aggregate proceeds of $25.8 million were used to purchase an equal principal amount of our adjustable rate subordinated debenturesthat bear interest, adjustable quarterly 90-day LIBOR plus 2.85% (the “SBI II Subordinated Debentures”). The proceeds were available to us to increase capital and for general

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corporate purposes. Interest payments on the SBI II Subordinated Debentures are deductible for federal income tax purposes.

On  September 4, 2003, FCBIStatutory Trust I sold to investors in a private placement offering $5.0 million of adjustable rate trust preferred securities (the “FCBII  Trust Preferred”). The FCBI I Trust Preferred bear interest, adjustable quarterly, at 90-day LIBOR plus 3.00%. In addition to these adjustable rate securities, FCBI Statutory Trust I sold $0.2 million of trust common equity. The aggregate proceeds of $5.2 million were used to purchase an equal principal amount of our adjustable rate subordinated debenturesthat bear interest, adjustable quarterly 90-day LIBOR plus 3.00% (the “FCBII  Subordinated Debentures”). The proceeds were available to us to increase capital and for general corporate purposes. Interest payments on the FCBII  Subordinated Debentures are deductible for federal income tax purposes. These trust preferred security and subordinated debentures were inherited with the acquisition of FCBI and were redeemed on February 8, 2016.

At December 31, 2016, we had an aggregate of $46.4 million of subordinated debentures outstanding and had an asset of $1.4 million representing our total investment in the common equity issued by the Trusts. The sole assets of the Trusts are the subordinated debentures and the liabilities of the Trusts of the OKSB Trust Preferred and SBI II Trust Preferred. We have, through various contractual arrangements, unconditionally guaranteed payment of all obligations of our Trusts with respect to our OKSB Trust Preferred and our SBI II Trust Preferred.

The OKSB Trust Preferred, the OKSB Subordinated Debentures, the SBI II Trust Preferred, and the SBI II Subordinated Debentures, mature at or near the thirtieth anniversary date of their issuance. However, if certain conditions are met, the OKSB Trust Preferred and the OKSB Subordinated Debentures and the SBI II Trust Preferred and the SBI II Subordinated Debentures may be called at our discretion with thirty days’ notice.

We, OKSB Statutory Trust I, and SBI Capital Trust II believe that, taken together, our obligations under the Trust Preferred Guarantee Agreements, the Amended and Restated Trust Agreements, the Subordinated Debentures, the Indentures and the Agreements as to Expenses and Liabilities, entered into in connection with the offering of the Trust Preferred and the Subordinated Debentures, in the aggregate constitute a full and unconditional guarantee by us of the obligations of OKSB Statutory Trust I and SBI Capital Trust II under the Trust Preferred.

OKSB Statutory Trust I is a Connecticut statutory trust created for the purpose of issuing the OKSB Trust Preferred and purchasing the OKSB Subordinated Debentures, which are its sole assets. We own all of the 619 outstanding common securities of OKSB Statutory Trust I; the liquidation value is $1,000 per share.

SBI Capital Trust II is a Delaware statutory trust created for the purpose of issuing the SBI II Trust Preferred and purchasing the SBI II Subordinated Debentures, which are its sole assets. We own all of the 774 outstanding common securities of SBI Capital Trust II; the liquidation value is $1,000 per share.

FCBI Statutory Trust I is a statutory trust created for the purpose of issuing the FCBI I Trust Preferred and purchasing the FCBI I Subordinated Debentures, which are its sole assets. All trust assets were redeemed on February 8, 2016. 

Each of the Trust Preferred issuances meets the regulatory criteria for Tier I capital, subject to Federal Reserve guidelines that limit the amount of the Trust Preferred and cumulative perpetual preferred stock to an aggregate of 25% of Tier I capital. At December 31, 2016, $45.0 million of the Trust Preferred was included in Tier I capital.

We de-consolidate our investments in OKSB Statutory Trust I, SBI Capital Trust II, and FCBI Statutory Trust I (the “Trusts”) in this Annual Report. Due to this required de-consolidation, the trust preferred securities are not presented on the Consolidated Statements of Financial Condition and the subordinated debentures are presented on the Consolidated Statements of Financial Condition as a separate liability category.

The terms of the debentures allow us to defer payments of interest for up to 20 consecutive quarterly periods without default or penalty. These terms also allow us to resume payments at the end of any deferral period, or to extend the deferral up to the maximum 20 quarters in total. No deferral can extend past the maturity date of the debenture.

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Note 12:  Derivative Instruments

We utilize derivatives instruments to manage exposure to various types of interest rate risk for us and our customers within policy guidelines. All derivative instruments are carried at fair value, in which credit risk is considered in determining fair value.

Derivative contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have an investment grade credit rating and be approved by our asset/liability management and executive loan committees. Our credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps with each counterparty. Access to collateral in the event of default is reasonably assured. Therefore, credit exposure may be reduced by the amount of collateral pledged by the counterparty.

Customer Risk Management Interest Rate Swaps

Our qualified customers have the opportunity to participate in our interest rate swap program for the purpose of managing interest rate risk on their variable rate loans with us. We enter into such agreements with customers, then offsetting agreements are executed between us and approved dealer counterparties to minimize our market risk from changes in interest rates. The counterparty contracts are identical to customer contracts in terms of notional amounts, interest rates, and maturity dates, except for a fixed pricing spread or fee paid to us by the dealer counterparty. These interest rate swaps carry varying degrees of credit, interest rate and market or liquidity risks. The fair value of these derivative instruments are recognized as either non-hedge derivative assets or liabilities in the Consolidated Statements of Financial Condition. 

We have entered into nine customer interest rate swap agreements that effectively convert the loan interest rate from floating rate based on LIBOR to a fixed rate for the customer. As of December 31, 2016, these loans had an outstanding balance of $124.0 million. We have entered into offsetting agreements with dealer counterparties. The following table summarizes the fair values of derivative contracts recorded as “non-hedge derivative assets” and “non-hedge derivative liabilities” in the Consolidated Statements of Financial Condition.

	As of December 31,2016				As of December 31,2015
(Dollars in thousands)	Notional		Fair Value		Notional		Fair Value
Non-hedge derivative assets	$	123,953	$	1,235	$	101,629	$	1,793
Non-hedge derivative liabilities		123,953		1,235		101,629		1,793

The floating rate paid in connection with these interest rate swap agreements is a contractual percentage rate spread to one-month LIBOR or to the Prime rate as of December 31, 2016. From time to time it may be necessary to post collateral with our dealer counterparties to secure the market values of these contracts. As of December 31, 2016, there was no collateral requirement with any of our dealer counterparties given the current market values of these contracts. These interest rate swaps are not designated as hedging instruments.

Interest Rate Swap on Trust Preferred Securities

We have an interest rate swap agreement with a total notional amount of $25.0 million. The interest rate swap contract was designated as a cash flow hedging instrument with the objective of protecting the overall cash flow from our quarterly interest payments on the SBI Capital Trust II preferred securities throughout the seven year period beginning February 11, 2011 and ending April 7, 2018 from the risk of variability of those payments resulting from changes in the three-month LIBOR. Under the swap, we will pay a fixed interest rate of 6.15% and receive a variable interest rate of three-month LIBOR plus a margin of 2.85% on a total notional amount of $25.0 million, with quarterly settlements. The rate received by us as of December 31, 2016  was 3.73%.

The estimated fair value of the interest rate derivative contract outstanding as of December 31, 2016 and 2015 resulted in a pre-tax loss of $0.7 million and $1.4 million, respectively, and was included in other liabilities in the Consolidated Statements of Financial Condition. 

The effective portion of the gain or loss due to changes in the fair value of the derivative hedging instrument, a  $0.4 million gain and a $0.1 million gain for the year ended December 31, 2016 and 2015, respectively, is included in other

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comprehensive income, net of tax, while the ineffective portion (indicated by the excess of the cumulative change in the fair value of the derivative over that which is necessary to offset the cumulative change in expected future cash flows on the hedge transaction) is included in other noninterest income or other noninterest expense. No ineffectiveness related to the interest rate derivative was recognized during either reporting period.   

Net cash flows as a result of the interest rate swap agreement were $0.7 million for the year ended December 31, 2016 and $0.8 million for each of the years ended December 31,2015and 2014 and were included in interest expense on subordinated debentures.   

We posted cash collateral with our counterparty related to the derivative contract in excess of the required $0.7 million and $1.4 million at December 31, 2016 and 2015, respectively.

There are no credit-risk-related contingent features associated with our derivative contract. 

Note 13:  Taxes on Income

The components of taxes on income follow:

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Current tax (benefit) expense:
Federal	$	8,809	$	7,534	$	3,251
State		173		143		186
Deferred tax expense (benefit):
Federal		44		1,126		7,970
State		783		990		1,210
Taxes on income	$	9,809	$	9,793	$	12,617

A reconciliation from the expected tax expense (benefit) using the U.S. Federal income tax rate of 35% to consolidated effective income tax expense (benefit) follows:

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Computed tax (benefit) expense at statutory rates	$	9,630	$	9,520	$	11,777
Increase (decrease) in income taxes resulting from:
Benefit of income not subject to U.S. Federal income tax		(632)		(621)		(209)
Expenses not deductible for U.S. Federal income tax		216		220		129
State income taxes, net of Federal income tax benefit		621		736		907
Other		(26)		(62)		13
Taxes on income	$	9,809	$	9,793	$	12,617

The calculated year-to-date effective tax rate is  35.7% for 2016,  36.0% for 2015, and 37.5% for 2014.

At December 31, 2013,  we had $10.7 million federal net operating loss carryforward expiring in2031, $53.1 million of state net operating loss carryforward expiring in 2031, and $0.6 million of state net operating loss carryforward expiring in 2021. In addition, we had $2.5 million alternative minimum tax credit that can be carried forward indefinitely.During 2014,we fully utilized the remaining federal net operating loss carryforward and the alternative minimum tax credit that had been carried forward. At December 31, 2016,  we had $10.3 million of state net operating loss carryforward expiring in2031.

A deferred tax asset or liability is recognized for the tax consequences of temporary differences in the recognition of certain income and expense items for financial statement reporting purposes. A valuation allowance is provided when itis more likely than not that some portion or all of a deferred tax asset will not be realized. It was determined that no valuation allowance was required for both 2016 and 2015.

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Net deferred tax assets of $13.2 million and $14.0 million at December 31, 2016 and 2015, respectively, are reflected in the accompanying Consolidated Statements of Financial Condition in other assets. 

Temporary differences that give rise to the deferred tax assets include the following:

		At December 31,
(Dollars in thousands)		2016		2015
Deferred tax assets:
	Provision for loan losses	$	10,976	$	10,291
	Net operating loss carryforward		380		858
	Write-downs on other real estate		-		57
	Nonaccrual loan interest		510		603
	Deferred compensation & profit sharing accrual		782		711
	Investments		306		311
	Section 597 gain - FDIC-assisted acquisition		388		472
	Accrued expenses		859		1,013
	Loan purchase accounting adjustment		1,392		2,725
	Stock-based compensation		805		629
	Other		659		(2)
Total deferred tax assets			17,057		17,668
Deferred tax liabilities:
	Accumulated depreciation		(2,966)		(2,877)
	Amortizable assets		(933)		(1,089)
	Dividend - Equity vs. Cost Method		(471)		(393)
	Prepaid expenses		(110)		(109)
	FHLB stock dividends		(65)		(132)
Total deferred tax liabilities			(4,545)		(4,600)
	Deferred taxes payable on investment
	securities available for sale		643		885
Net deferred tax asset		$	13,155	$	13,953

We or one of our subsidiaries files income tax returns in the U.S. federal jurisdiction and various state jurisdictions. Weare no longer subject to U.S. federal or state tax examinations for years before 2013. Additionally, as procedurally required, our company’s 2010 and 2011 federal returns were examined in connection with the 2011 net operating loss carryback and no adjustments were required.

Unrecognized Tax Benefits – ASC 740, Income Taxes, provides guidance on the recognition, measurement, and classification of income tax uncertainties, along with any related interest and penalties. As of December 31, 2016, we have no unrecognized tax benefits related to Federal or State income tax matters and do not anticipate any changes within the next twelve months. Additionally, no interest and penalties have been accrued related to uncertain tax positions.

Note 14:  Shareholders’ Equity

We have reserved for issuance 150,000 shares of common stock pursuant to the terms of the Employee Stock Purchase Plan. The Employee Stock Purchase Plan allows our employees to acquire additional common shares through payroll deductions. From July 1999 to August 2009, shares issued out of this plan came from treasury shares, subsequent shares issued came from the reserved shares. As of December 31, 2016,  61,115 total shares had been issued and 52,500total treasury shares had been reissued under this plan. As of December 31, 2015, 59,873 total shares had been issued and 52,500total treasury shares had been reissued under this plan.

We have reserved 800,000 shares of common stock pursuant to the terms of the 2008 Stock Plan. The 2008 Stock Plan provides selected key employees with the opportunity to acquire common stock. As of December 31, 2016, 603,545 new

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shares had been issued and 25,725 treasury shares had been reissued by the 2008 Stock Plan.As of December 31, 2015,  512,101 new shares had been issued and  25,725 treasury shares had been reissued by the 2008 Stock Plan.

Stock Repurchase Program – On May 25, 2016, the Board authorized our fourth stock repurchase program since August 2014. The program authorizes the repurchase of up to another 5.0%, or approximately 921,000 shares, of our outstanding common stock and became effective February 23, 2017, which was the original expiration date of the third program. During 2016, we repurchased 1,398,026 shares for a total of $22.1million, and since August 2014, we have repurchased a total of 2,519,584 shares for a total of  $40.8 million. Repurchases under the program are available at the discretion of management based upon market, business, legal, and other factors. Our ability to repurchase our common stock is limited during the time that the Merger is pending.

Note 15:  Earnings per Common Share

The following table shows the computation of basic and diluted earnings per common share: 

(Dollars in thousands, except earnings per share data)	2016		2015		2014
Numerator:
Net income	$	17,704	$	17,407	$	21,030
Earnings allocated to participating securities		(279)		(258)		(253)
Numerator for earnings per common share	$	17,425	$	17,149	$	20,777
Denominator:
Denominator for basic earnings per common share		18,660,951		18,975,450		19,417,486
Dilutive effect of stock compensation		205,916		148,059		142,877
Denominator for diluted earnings per common share		18,866,867		19,123,509		19,560,363
Earnings per common share:
Basic	$	0.93	$	0.90	$	1.07
Diluted	$	0.92	$	0.90	$	1.06

At December 31, 2016 and December 31, 2015, there were 6,573and 38,145anti-dilutive restricted stock awards outstanding, respectively. There were no anti-dilutive restricted stock awards outstanding at December 31, 2014.

Note 16:  Capital Requirements and Regulatory Matters

We and Bank SNB are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could have a direct material effect on our andBank SNB’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, we and Bank SNB must meet specific capital guidelines that involve quantitative measures of our and Bank SNB’s assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. Our and Bank SNB’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Quantitative measures established by regulation to ensure capital adequacy require us and Bank SNB to maintain minimum amounts of Total, Tier I Capital (as defined in the regulations), and CET1 Capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier I Capital (as defined) to average assets (as defined). 

Management believes that, as of December 31, 2016 and December 31, 2015, we and Bank SNB met all capital adequacy requirements.

As of December 31, 2016 and December 31, 2015, Bank SNB was categorized as well-capitalized under the regulatory framework for prompt corrective action. To be categorized as well-capitalized, the Bank must maintain minimum Total risk-based, Tier I risk-based, CET1 risk-based, and Tier I leverage ratios as set forth in the following table.

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A summary of actual capital amounts and ratios as of December 31, 2016 are presented below.

					Required to be Considered				For Capital
	Actual				Well-Capitalized				Adequacy Purposes
(Dollars in thousands)	Amount		Ratio			Amount	Ratio			Amount	Ratio
As of December 31, 2016:
Total CET1 Capital (to risk-weighted assets)
Southwest	$	272,882	12.36	%	$	143,488	6.50	%	$	99,338	4.50	%
Bank SNB		301,023	13.66			143,189	6.50			99,131	4.50
Total Capital (to risk-weighted assets)
Southwest		345,597	15.66			220,751	10.00			176,601	8.00
Bank SNB		328,681	14.92			220,291	10.00			176,232	8.00
Tier 1 Capital (to risk-weighted assets)
Southwest		317,882	14.40			176,601	8.00			132,450	6.00
Bank SNB		301,023	13.66			176,232	8.00			132,174	6.00
Tier 1 Leverage (to average assets)
Southwest		317,882	13.02			122,046	5.00			97,637	4.00
Bank SNB		301,023	12.37			121,686	5.00			97,349	4.00

A summary of actual capital amounts and ratios as of December 31, 2015 are presented below.

					Required to be Considered				For Capital
	Actual				Well-Capitalized				Adequacy Purposes
(Dollars in thousands)	Amount		Ratio			Amount	Ratio			Amount	Ratio
As of December 31, 2015:
Total CET1 Capital (to risk-weighted assets)
Southwest	$	282,737	13.21	%	$	139,122	6.50	%	$	96,316	4.50	%
Bank SNB		291,125	13.65			138,637	6.50			95,980	4.50
Total Capital (to risk-weighted assets)
Southwest		359,300	16.79			214,034	10.00			171,228	8.00
Bank SNB		317,865	14.90			213,288	10.00			170,631	8.00
Tier 1 Capital (to risk-weighted assets)
Southwest		332,468	15.53			171,228	8.00			128,421	6.00
Bank SNB		291,125	13.65			170,631	8.00			127,973	6.00
Tier 1 Leverage (to average assets)
Southwest		332,468	14.41			115,371	5.00			92,297	4.00
Bank SNB		291,125	12.66			114,939	5.00			91,951	4.00

The approval of the Oklahoma State Banking Department and the Federal Reserve Bank is required if the total of all dividends declared by Bank SNB in any calendar year exceeds the total of its net profits of that year combined with its retained net profits of the preceding two years. In addition, Bank SNB may not pay a dividend if, after paying the dividend, Bank SNB would be undercapitalized. 

Note 17:  Employee Benefits

We sponsor a 401(k) defined contribution savings plan. The plan permitsemployees to make salary deferral contributions and Roth deferral contributions and permits us to make matching contributions and nonelective contributions. For salary deferral contributions and Roth deferral contributions, employees may become participants in the plan immediately upon their hire date. For the matching contributions, employees who have completed 30 days of service and have attained the age of 21 may become participants in the plan.For the nonelective contributions, employees who have completed one year of service and have attained the age of 21 may become participants in the plan. The plan is subject to the Employee Retirement Income Security Act of 1974, as amended. The plan permits participants to make before or after-tax

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contributions in an amount not exceeding 90% of eligible compensation and subject to dollar limits from Internal Revenue Service regulations. 

Matching contributions and minimum contributions, if any, become vested based on employees’ years of service with us. The vested percentage of matching contributions is determined by employees’ completed years of service:  less than one year equals 0% vested, one year equals 33% vested, two years equal 66% vested, and three or more years equal 100% vested. Nonelective contributions and minimum contributions, if any, also become vested based on employees’ years of service with us. The vested percentage of nonelective contributions is determined by employees’ completed years of service:  less than two years equal 0% vested, two years equal 20% vested, three years equal 40% vested, four years equal 60% vested, and five or more years equal 100% vested. Employees that terminate employment with us will not be entitled to any portion of their accounts that are not vested. The portion not yet vested will be considered a forfeiture. If the employees returns to work for us before five consecutive one-year breaks in service, the forfeited portions of their accounts may be restored if they repay any distributions received at termination. For those that did not receive a distribution and are reemployed by us, their accounts will automatically be restored.

During 2015 and 2014, we made an annual nonelective contribution of 3% of eligible compensation.We made contributions of $0.7 million and $0.6 million in 2015 and 2014, respectively. Effective January 1, 2016, we changed our plan to permit us to make a matching contribution equal to 50% of the first 8% of employees’ pre-tax or Roth salary deferral contributions up to a maximum of 4% of their salaries on an annual basis. We may choose to make a nonelective contribution in an amount in the same ratio that employees’ salaries bear to the total salary of all participants in the plan. The amount of the contribution, if any, is determined each plan year and announced to all participants. During 2016, we  made matching contributions of $0.8million and no nonelective contributions.

Stock Options – We recorded no share-based compensation expense with respect to stock options for the years ended December 31, 2016, 2015, and 2014. The share-based compensation is calculated using the accrual method, which treats each vesting tranche as a separate award and amortizes expense evenly from grant date to vest date for each tranche. 

There were no outstanding options as of December 31, 2016 and 2015.  

No stock options were exercised in 2016, 2015 and 2014.  

Restricted Stock -Restricted shares granted as of December 31, 2016, 2015 and 2014 were546,895,  462,024, and 453,987, respectively. We recognized $1.5 millionfor the year ended December 31, 2016 and $1.3 million for the year ended December 31, 2015 and $0.6 million for the year ended December 31, 2014, in compensation expense, related to all restricted shares outstanding. At December 31, 2016, there was $1.6 million of total unrecognized compensation expense related to restricted shares granted under the 2008 Stock Plan. Of the total unrecognized compensation expense at December 31, 2016, $1.0 million will be recognized in 2017, and the remainder will be recognized the following two years.

The 2016 and 2015 grants of restricted stock have a vesting period between one to three years. The restrictions on the shares expire one year after the award date or upon the earlier to occur of satisfaction of vesting conditions, a change in control of us, or the permanent and total disability or death of the participant. We recognize compensation expense over the restricted period.

Supplemental Executive Retirement Plan  – Through the acquisition of Bancshares, we inherited a nonqualified supplemental executive retirement plan for certain officers. The plan is closed to any future employees and is funded by the bank owned life insurance acquired from Bancshares. This plan provides for postretirement salary and life insurance benefits, as determined by the plan document. As of December 31, 2016, the accrued deferred compensation was $1.4 million.

Note 18:  Related Party Transactions

Directors and officers of us and Bank SNB were customers of, and had transactions with,usin the ordinary course of business, and similar transactions are expected in the future. All loans included in such transactions were made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable

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transactions with other persons and in management’s opinion did not involve more than normal risk of loss or present other unfavorable features. Certain directors, and companies in which they have ownership interests, had indebtedness to us totaling $14.2  million and $26.1 million at December 31, 2016 and 2015, respectively. During 2016, $26.9million of new loans and advances on existing loans were made to these persons and repayments totaled $38.9 million.During 2015,  $41.2 million of new loans and advances on existing loans were made to these persons and repayments totaled $24.2 million.

At December 31, 2016 and 2015, directors, officers and other related parties had demand, non-interest bearing deposits of $1.8 million and $2.1 million, respectively, savings and interest-bearing transaction accounts of $13.2 million and $14.0 million, respectively, and time certificates of deposit of $0 and $0.5 million, respectively.

Note  19:  Off-Balance-Sheet Arrangements, Commitments, Guarantees and Contingencies

Financial Instruments with Off-Balance-Sheet Risk –In the normal course of business, wemake use of a number of different financial instruments to help meet the financial needs of ourcustomers. In accordance with U.S. generally accepted accounting principles, these transactions are not presented in the accompanying consolidated financial statements and are referred to as off-balance sheet instruments. These transactions and activities include commitments to extend lines of commercial and real estate mortgage credit and standby and commercial letters of credit. The following table provides a summary of ouroff-balance sheet financial instruments:

	At December 31,
(Dollars in thousands)	2016		2015
Commitments to extend commercial and real estate mortgage credit	$	429,383	$	446,412
Standby and commercial letters of credit		7,160		6,595
Total	$	436,543	$	453,007

A loan commitment is a binding contract to lend up to a maximum amount for a specified period of time provided there is no violation of any financial, economic, or other terms of the contract. A standby letter of credit obligates us to honor a financial commitment to a third party should our customer fail to perform. Many loan commitments and most standby letters of credit expire unfunded, and, therefore, total commitments do not represent our future funding obligations. Loan commitments and letters of credit are made under normal credit terms, including interest rates and collateral prevailing at the time, and usually require the payment of a fee by the customer. Commercial letters of credit are commitments generally issued to finance the movement of goods between buyers and sellers. Our exposure to credit loss, assuming commitments are funded, in the event of nonperformance by the other party to the financial instrument is represented by the contractual amount of those instruments. We do not anticipate any material losses as a result of the commitments.

Litigation – In the normal course of business, we areat all times subject to various pending and threatened legal actions. The relief or damages sought in some of these actions may be substantial. After reviewing pending and threatened actions with counsel, management considers that the outcome of such actions will not have a material adverse effect on our financial position; however, we are not able to predict whether the outcome of such actions may or may not have a material adverse effect on results of operations in a particular future period as the timing and amount of any resolution of such actions and relationship to the future results of operations are not known.

Severance Compensation Plan and Change in Control Agreements –We have adopted a Severance Compensation Plan and a Change of Control Agreement (the “Plans”) for the benefit of certain officers and key members of management. The Plan’s purpose is to protect and retain certain qualified employees in the event of a change in control and to reward those qualified employees for loyal service to us by providing severance compensation to them upon their involuntary termination of employment after a change in control of Southwest. At December 31, 2016,  we have not recorded any amounts in the Consolidated Financial Statements relating to the Plans. If a change of control were to occur, the maximum amount payable to certain officers and key members of management would approximate $12.1 million.

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Note 20:  Operating Segments

We operatefour principal segments:  Oklahoma Banking, Texas Banking, Kansas Banking, and Other Operations. The Oklahoma Banking segment provides deposit and lending services and consists of residential mortgage lending services to customers. Due to its size and the management structure, Colorado Banking is included within Oklahoma Banking. The Texas Banking segment and the Kansas Banking segment provide deposit and lending services.  Other Operations includes our funds management unit and corporate investments. Prior to the fourth quarter of 2015,  we disclosed a Mortgage Banking segment, which included 1-4 family mortgages and the available for sale loans.For segment reporting, the Mortgage Banking segment has been combined with and into the Oklahoma Banking segment due to those loans being managed from that location. Prior period numbers have been adjusted to reflect this change. This adjustment has no financial statement impact.

The primary purpose of the funds management unit is to manage our overall internal liquidity needs and interest rate risk. Each segment borrows funds from or provides funds to the funds management unit as needed to support its operations. 

The value of funds provided to and the cost of funds borrowed from the funds management unit by each segment are internally priced at rates that approximate market rates for funds with similar duration. The yield used in the funds transfer pricing curve is a blend of rates based on the volume usage of retail and brokered certificates of deposit and FHLB advances. 

The accounting policies of each reportable segment are the same as ours. Expenses for consolidated back-office operations are allocated to operating segments based on estimated uses of those services. General overhead expenses such as executive administration, accounting, and audit are allocated based on the direct expense and/or deposit and loan volumes of the operating segment. Income tax expense for the operating segments is calculated at statutory rates. The Other Operations segment records the tax expense or benefit necessary to reconcile to the consolidated financial statements. 

Capital is assigned to each of the segments using a risk-based capital pricing methodology that assigns capital ratios by asset, deposit, or revenue category based on credit risk, interest rate risk, market risk, operational risk, and liquidity risk factors.  There were no significant changes in 2016 due to funds transfer pricing, capital assignments, or expense allocations.

The following table summarizes financial results by operating segment: 

For the year ended December 31, 2016
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	50,590	$	22,697	$	6,694	$	(538)	$	79,443
Provision for loan losses		2,007		973		1,786		3		4,769
Noninterest income		11,576		1,273		1,202		2,034		16,085
Noninterest expenses		40,083		13,734		5,275		4,154		63,246
Income (loss) before taxes		20,076		9,263		835		(2,661)		27,513
Taxes on income		7,157		3,303		298		(949)		9,809
Net income (loss)	$	12,919	$	5,960	$	537	$	(1,712)	$	17,704
* Includes externally generated revenue of $3.0 million, primarily from investing services, and an internally generated loss of $1.5 million from the funds management unit.
Total loans at period end	$	1,095,930	$	636,643	$	144,559	$	-	$	1,877,132
Total assets at period end		1,138,969		633,328		143,558		559,537		2,475,392
Total goodwill at period end		12,525		1,020		-		-		13,545
Total deposits at period end		1,330,176		195,603		147,823		272,416		1,946,018

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For the year ended December 31, 2015
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	42,019	$	21,168	$	6,277	$	(2,047)	$	67,417
Provision (credit) for loan losses		(2,068)		(632)		(868)		2		(3,566)
Noninterest income		10,134		1,485		1,473		1,365		14,457
Noninterest expenses		33,136		14,324		6,152		4,628		58,240
Income (loss) before taxes		21,085		8,961		2,466		(5,312)		27,200
Taxes on income		7,591		3,227		888		(1,913)		9,793
Net income (loss)	$	13,494	$	5,734	$	1,578	$	(3,399)	$	17,407
* Includes externally generated revenue of $2.1 million, primarily from investing services, and an internally generated loss of $2.8 million from the funds management unit.
Total loans at period end	$	1,048,473	$	580,476	$	150,480	$	-	$	1,779,429
Total assets at period end		1,098,735		578,749		149,847		529,691		2,357,022
Total goodwill at period end		12,447		1,020		-		-		13,467
Total deposits at period end		1,374,227		209,146		119,313		181,419		1,884,105

For the year ended December 31, 2014
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	38,846	$	19,187	$	9,469	$	(2,498)	$	65,004
Provision (credit) for loan losses		(2,561)		(3,640)		(425)		2		(6,624)
Noninterest income		9,030		1,594		1,576		6,731		18,931
Noninterest expenses		31,363		13,387		8,616		3,546		56,912
Income before taxes		19,074		11,034		2,854		685		33,647
Taxes on income		7,152		4,138		1,070		257		12,617
Net income	$	11,922	$	6,896	$	1,784	$	428	$	21,030
* Includes externally generated revenue of $7.6 million, primarily from investing services, and an internally generated loss of $3.3 million from the funds management unit.
Total loans at period end	$	793,262	$	460,680	$	146,043	$	6	$	1,399,991
Total assets at period end		805,704		458,489		147,256		530,585		1,942,034
Total goodwill at period end		194		1,020		-		-		1,214
Total deposits at period end		1,113,477		224,634		110,901		84,987		1,533,999

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Note 21:  Parent Company Condensed Financial Information 

Following are the condensed financial statements of Southwest Bancorp, Inc. (“Parent Company only”) for the periods indicated:

	At December 31,
(Dollars in thousands)	2016		2015
Statements of Financial Condition
Assets:
Cash and cash equivalents	$	12,105	$	30,469
Investment in subsidiary banks		315,181		305,064
Investments in other subsidiaries		2,084		8,444
Other assets		5,499		6,393
Total	$	334,869	$	350,370
Liabilities:
Subordinated debentures		46,393		51,548
Other liabilities		1,847		2,724
Shareholders' Equity:
Common stock and related accounts		286,629		296,098
Total	$	334,869	$	350,370

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Statements of Operations
Income:
Cash dividends from subsidiaries	$	10,052	$	20,046	$	18,045
Noninterest income		25		45		34
Investment income		-		20		1,337
Other operating income		15		25		3
Security gains		-		163		-
Total income		10,092		20,299		19,419
Expense:
Interest on subordinated debentures		1,740		1,566		1,505
Noninterest expense		2,191		1,756		1,317
Total expense		3,931		3,322		2,822
Total income before taxes and equity in
undistributed income of subsidiaries		6,161		16,977		16,597
Taxes on income		(1,377)		(1,167)		(582)
Income before equity in undistributed
income of subsidiaries		7,538		18,144		17,179
Equity in undistributed income (loss) of subsidiaries		10,166		(737)		3,851
Net income	$	17,704	$	17,407	$	21,030

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	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Statements of Cash Flows
Operating activities:
Net income	$	17,704	$	17,407	$	21,030
Equity in undistributed (income) loss of subsidiaries		(10,166)		737		(3,851)
Other, net		6,823		2,295		2,937
Net cash provided by operating activities		14,361		20,439		20,116
Investing activities:
Available for sale securities:
Purchases		-		-		(1,121)
Sales / Maturities		-		750		2,540
Outlays for business acquisitions		-		(4,697)		-
Other, net		-		(155)		-
Net cash provided by (used in) investing activities		-		(4,102)		1,419
Financing activities:
Net proceeds from issuance of common stock		1,239		682		1,386
Purchases of treasury stock		(22,721)		(8,624)		(10,302)
Common stock dividend		(6,088)		(4,607)		(3,132)
Other, net		(5,155)		5,155		-
Net cash used in financing activities		(32,725)		(7,394)		(12,048)
Net increase (decrease) in cash and cash equivalents		(18,364)		8,943		9,487
Cash and cash equivalents,
Beginning of year		30,469		21,526		12,039
End of year	$	12,105	$	30,469	$	21,526

Note  22:  Commitments and Contingencies

Customer Risk Management Interest Rate Swap

On September 9, 2014, we entered into an agreement to provide one of our commercial borrowers a customer interest rate swap that effectively converts the loan interest rate from floating rate based on LIBOR to a fixed rate for the customer. As of December 31, 2016, the floating rate loan had an outstanding balance of $14.7 million. The option to execute the swap is conditional on compliance with the loan and swap agreements, and will be subject to the terms of the International Swaps and Derivatives Association Master Agreement. The fixed pay amount will be based on the market rates at the time of execution, and it is our intention to simultaneously execute an offsetting trade with an approved swap dealer counterparty with identical terms. 

We have seven risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract with the financial institution. As of December 31, 2016, the current notional amount for these seven transactions total $34.7 million.

Legal Action

On March 18, 2011,  an action entitled Ubaldi, et al. v SLM Corporation (“Sallie Mae”), et al., Case No. 3:11-cv-01320 EDL (the “Ubaldi Case”) was filed in the U.S. District Court for the Northern District of California as a putative class action with respect to certain loans that the plaintiffs claim were made by Sallie Mae. The loans in question were made by various banks, including Bank SNB, and sold to Sallie Mae. Plaintiffs claim that Sallie Mae entered into arrangements with chartered banks in order to evade California law and that Sallie Mae is the de facto lender on the loans in question and, as the lender on such loan, Sallie Mae charged interest and late fees that violates California usury law and theCalifornia Business and Professions Code. Sallie Mae has denied all claims asserted against it and has stated that it intends to vigorously defend the action. On March 26, 2014, the Court denied the plaintiffs’ request to certify the class; however, the Court permitted the plaintiffs to amend the filing to redefine the class. Plaintiffs filed a renewed motion on June 23,

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2014. On December 19, 2014, the Court issued a decision on the renewed motion, certifying a class with respect to claims of improper late fees, but denying class certification with respect to plaintiffs’ usury claims. Plaintiffs thereafter filed a motion seeking leave to amend their complaint to add additional parties, which Sallie Mae opposed, and, on March 24, 2015, the Court denied the plaintiffs’ motion. On June 5, 2015, the law firm Cohen Milstein Sellers & Toll based in Washington, D.C. entered its appearance as co-counsel on behalf of plaintiffs.

Bank SNB is not specifically named in the action. However, in the first quarter of 2014, Sallie Mae provided Bank SNB with a notice of claims that have been asserted against Sallie Mae in the Ubaldi Case (the “Notice”). Sallie Mae asserts in the Notice that Bank SNB may have indemnification and/or repurchase obligations pursuant to the ExportSS Agreement dated July 1, 2002 between Sallie Mae and Bank SNB, pursuant to which the loans in question were made by Bank SNB. Bank SNB has substantial defenses with respect to any claim for indemnification or repurchase ultimately made by Sallie Mae, if any, and intends to vigorously defend against any such claims.

Due to the uncertainty regarding (i) the size and scope of the class, (ii) the particular class members, (iii) the late fees charged to particular class members, (iv) the theories, if any, under which the plaintiffs might prevail, (v) whether Sallie Mae will make a claim against us for indemnification or repurchase, and (vi) the likelihood that Sallie Mae would prevail if it makes such a claim, we cannot estimate the amount or the range of losses that may arise as a result of the Ubaldi Case.

In the normal course of business, we are at all times subject to various pending and threatened legal actions. The relief or damages sought in some of these actions may be substantial. After reviewing pending and threatened actions with counsel, management currently does not expect that the outcome of such actions will have a material adverse effect on our financial position; however, we are not able to predict whether the outcome of such actions may or may not have a material adverse effect on results of operations in a particular future period as the timing and amount of any resolution of such actions and relationship to the future results of operations are not known.

Note23:  New Authoritative Accounting Guidance

In May 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606), which establishes a five-step model that entities must follow to recognize revenue. The guidance would have become effective for us on January 1, 2017. However, in August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606)—Deferral of the Effective Date, which deferred the effective date of ASU 2014-09 by one year. The guidance will now become effective for us on January 1, 2018, and is not expected to have a material impact on our financial statements and disclosures.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurements of Financial Assets and Financial Liabilities. This ASU requires that all equity investments be measured at fair value with changes in the fair value recognized through net income (other than those accounted for under the equity method of accounting or those that result in consolidation of the investee). This ASU also requires that an entity present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. In addition, this ASU eliminates the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities and the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet for public business entities. The guidance becomes effective for us on January 1, 2018, and we are evaluating the impact of this ASU on our financial statements and disclosures. 

In February 2016, the FASB issued ASU 2016-02, Leases. This ASU requires lessees to put most leases on their balance sheets but recognize expenses in the income statement in a manner similar to current accounting treatment. This ASU changes the guidance on sale-leaseback transactions, initial direct costs and lease execution costs, and, for lessors, modifies the classification criteria and the accounting for sales-type and direct financing leases. The guidance becomes effective for us on January 1, 2019. Entities are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. We are evaluating the impact of this ASU on our financial statements and disclosures.

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In March 2016, the FASB issued ASU 2016-05, Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships. This ASU clarifies that a change in the counterparty of a derivative contract (i.e., a novation) in a hedge accounting relationship does not, in and of itself, require dedesignation of the hedge accounting relationship. This guidance becomes effective for us on January 1, 2017, and it is not expected to have a material impact on our financial statements and disclosures.  

In March 2016, the FASB issued ASU 2016-06, Contingent Put and Call Options in Debt Instruments. This ASU clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. An entity performing the assessment under this ASU is required to assess the embedded call (put) options solely in accordance with the four-step decision sequence. The amendments apply to all entities that are issuers of or investors in debt instruments (or hybrid financial instruments that are determined to have a debt host) with embedded call (put) options. This guidance becomes effective for us on January 1, 2017, and it is not expected to have a material impact on our financial statements and disclosures.

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting. This ASU simplifies several aspects of the accounting for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This guidance becomes effective for us on January 1, 2017, and it is not expected to have a material impact on our financial statements and disclosures.

In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing. While this ASU does not change the core principles of the guidance in Topic 606, it does clarify the guidance related to identifying performance obligations as well as the accounting for licenses of intellectual property. This guidance becomes effective for us on January 1, 2017, and it is not expected to have a material impact on our financial statements and disclosures.

In May 2016, the FASB issued ASU 2016-11, Revenue Recognition (Topic 605) and Derivatives Hedging (Topic 815), Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting (SEC Update). This ASU rescinds from the FASB Accounting Standards Codification certain SEC Observer comments that are codified in FASB ASC Topic 605, Revenue Recognition, and ASC 932, Extractive Activities – Oil and Gas, effective upon an entity’s adoption of FASB ASC 606, Revenue from Contracts with Customers. This ASU also rescinds the SEC Staff Announcement:  Determining the Nature of a Host Contract Related to a Hybrid Instrument Issued in the Form of a Share under Topic 815,” which is codified in FASB ASC Topic 815, Derivatives and Hedging, effective on adoption of FASB ASU 2014-16, Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share is More Akin to Debt or Equity. This guidance becomes effective for us on January 1, 2018, and it is not expected to have a material impact on our financial statements and disclosures.

In May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers (Topic 606), Narrow-Scope Improvements and Practical Expedients. While this ASU does not change the core principles of the new revenue recognition standard, it does make the standard more operational and clarifies the guidance on assessing collectability, presenting sales taxes, measuring noncash consideration, and certain transition matters. This guidance becomes effective for us on January 1, 2018, and it is not expected to have a material impact on our financial statements and disclosures.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326):  Measurement of Credit Losses on Financial Instruments. This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that estimates credit losses on most financial instruments measured at amortized cost, such as loans, receivables, and held-to-maturity securities, using the current expected credit loss (CECL) model. Under this model, entities will estimate credit losses over the financial instrument’s entire contractual term from the date of initial recognition of that instrument. The ASU also requires incremental disclosures on how the entity developed its estimates. This guidance becomes effective for us on January 1, 2020. We are evaluating the impact of this ASU on our financial statements and disclosures.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), which is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. The new guidance specifically addresses eight classification issues:  debt prepayment or debt extinguishment costs; settlement of zero-coupon bonds;

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contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance (COLI) policies, including bank-owned life insurance (BOLI) policies; distributions received from equity method investments; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. This guidance becomes effective for us on January 1, 2018. We are evaluating the impact of the ASU on our financial statements and disclosures.

In October 2016, the FASB issued ASU 2016-16,  Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory.  The ASU requires companies to recognize the income tax consequences of an intercompany asset transfer when the transfer occurs. The amendments in this ASU do not change accounting for the pre-tax effects of intra-entity asset transfers under Topic 810, Consolidation, and do not apply to intra-entity inventory transfers. The economic consequences of intra-entity asset sales—other than inventory—will be recognized in the period in which the transaction occurs and no longer deferred. A reporting entity’s effective tax rate likely will be affected due to the immediate recognition of the seller’s taxes and buyer’s deferred taxes, particularly when the transaction has no effect on consolidated pre-tax income. This guidance becomes effective for us on January 1, 2018. We are evaluating the impact of this ASU on our financial statement disclosures.

In January 2016, the FASB issued ASU 2017-01, Business Combinations (Topic 805):  Clarifying the Definition of a Business, which provides guidance on evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses.  The guidance is generally expected to result in fewer transactions qualifying as business combinations. Under the new guidance, an entity first determines whether substantially all of the fair value of the gross assets acquired (or disposed of)is concentrated in a single identifiable asset or a group of similar identifiable assets. If this threshold is met, the set is not considered a business. If this threshold is not met, a set cannot be considered a business unless it includes an input and a substantive process that together significantly contribute to the ability to create outputs. This guidance becomes effective for us on January 1, 2018, and is not expected to have a material impact on our financial statements and disclosures.

Item 9.  Change in and disagreements with accountants on accounting and financial disclosures

None.

Item 9A.  Controls and Procedures

Management’s Assessment of the Effectiveness of Disclosure Controls and Procedures

As required by SEC rules, our management evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2016. Our Chief Executive Officer and Chief Financial Officer participated in the evaluation. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of December 31, 2016.

Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. As required by SEC rules, our management evaluated the effectiveness of our internal control over financial reporting as defined in SEC Rule 13a-15 as of December 31, 2016. Our Chief Executive Officer and Chief Financial Officer participated in the evaluation, which was based upon the criteria for effective internal control over financial reporting included in the “Internal Control-Integrated Framework” issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013. Based on this evaluation, our management concluded that our internal control over financial reporting was  effective as of December 31, 2016.

The report by our independent registered public accounting firm, BKD LLP, on our internal control over financial reporting is included on page97.

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Report of Independent Registered Public Accounting Firm

Audit Committee, Board of Directors and Shareholders

Southwest Bancorp, Inc.

Stillwater, Oklahoma

We have audited Southwest Bancorp, Inc.’s (the Company) internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control – Integrated Framework (2013 edition),issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that 1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the Company; 2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the Company are being made only in accordance with authorizations of management and directors of the Company; and 3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control – Integrated Framework (2013 edition), issued by COSO.

We have also audited, in accordance with the standards of the PCAOB, the consolidated financial statements of the Company and our report dated March 9, 2017, expressed an unqualified opinion thereon.

/s/ BKD LLP

Oklahoma City, Oklahoma

March 9, 2017

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Item 9B.  Other Information

None.

PART III

Item 10.  Directors, Executive Officers and Corporate Governance

The information required by this Item is incorporated herein by reference to the Proxy Statement (Schedule 14A) for its 2017Annual Meeting of Shareholders to be filed with the SEC within 120 days of our fiscal year-end.

Item 11.  Executive Compensation

The information required by this Item is incorporated herein by reference to the Proxy Statement (Schedule 14A) for its 2017Annual Meeting of Shareholders to be filed with the SEC within 120 days of our fiscal year-end.

Item 12.  Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by this Item is incorporated herein by reference to the Proxy Statement (Schedule 14A) for its 2017 Annual Meeting of Shareholders to be filed with the SEC within 120 days of our fiscal year-end.

Item 13.  Certain Relationships and Related Transactions and Director Independence

The information required by this Item is incorporated herein by reference to the Proxy Statement (Schedule 14A) for its 2017Annual Meeting of Shareholders to be filed with the SEC within 120 days of our fiscal year-end.

ITEM 14.  pRINCIPAL aCCOUNTING fEES AND sERVICES

The information required by this Item is incorporated herein by reference to the Proxy Statement (Schedule 14A) for its 2017Annual Meeting of Shareholders to be filed with the SEC within 120 days of our fiscal year-end.

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PART IV

Item 15.  Exhibits, Financial Statement Schedules

(a) Documents Filed as Part of this Report

(1) Financial Statements.  The following financial statements are filed as part of this report:

Independent Registered Public Accounting Firm’s Reports for the Years Ended December 31, 2016 and 2015

Consolidated Statements of Financial Condition at December 31, 2016 and 2015

Consolidated Statements of Operations for the Years Ended December 31, 2016,  2015, and 2014

Consolidated Statements of Comprehensive Income for the Years Ended December 31, 2016,  2015, and 2014

Consolidated Statements of Shareholders’ Equity for the Years Ended December 31, 2016,  2015, and 2014

Consolidated Statements of Cash Flows for the Years Ended December 31, 2016,  2015, and 2014

Notes to the Consolidated Financial Statements for the Years Ended December 31, 2016,  2015, and 2014

(2) Financial Statement Schedules.  All schedules for which provision is made in the applicable accounting regulations of the SEC are omitted because of the absence of conditions under which they are required or because the required information is included in the consolidated financial statements and related notes thereto.

(3) Exhibits. The following is a list of exhibits filed as part of this Annual Report on Form 10‑K.

99

	Exhibit Number	Exhibit Description
	3.1	Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 5.1 to Current Report on Form 8-K filed October 2, 2012)
	3.2	Amended and Restated Bylaws of Southwest Bancorp, Inc. (incorporated by reference to Exhibit 3.1 to Current Report on Form 8-K filed December 27, 2012)
*	10.1	Southwest Bancorp, Inc. Employee Stock Purchase Plan (incorporated by reference to Exhibit 4.1 to Registration Statement on Form S-8 (File No. 33-97850))
*	10.2	Southwest Bancorp, Inc. and Affiliates Amended and Restated Severance Compensation Plan (incorporated by reference to Exhibit 10.6 to Current Report on Form 8-K filed January 2, 2008)
*	10.3	Stillwater National Bank and Trust Company 2002 and 2003 Deferred Compensation Plans (incorporated by reference to Exhibit 10.5 to Annual Report on Form 10-K for the fiscal year ended December 31, 2002)
	10.4	Indemnification Agreements by and between Southwest Bancorp, Inc. and James E. Berry II, Thomas D. Berry, Russell W. Teubner, and John Cohlmia (incorporated by reference to Exhibit 10.9 to Annual Report on Form 10-K for the fiscal year ended December 31, 2005)
	10.5	Indemnification Agreements by and between Southwest Bancorp, Inc. and David S. Crockett, Jr. (incorporated by reference to Exhibit 10(a) to Quarterly Report on Form 10-Q for the quarter ended September 30, 2006)
	10.6	Indemnification Agreements by and between Southwest Bancorp, Inc. and James M. Johnson (incorporated by reference to Exhibit 10(b) to Quarterly Report on Form 10-Q for the quarter ended September 30, 2006)
	10.7	Director’s Deferred Compensation Plan by and between Southwest Bancorp, Inc. and James M. Johnson (incorporated by reference to Exhibit 10 to Current Report on Form 8-K filed January 3, 2007)
*	10.8	Amendment to Director’s Deferred Compensation Plan by and between Southwest Bancorp, Inc. and James M. Johnson (incorporated by reference to Exhibit 10.1 to Current Report on Form 8-K filed January 2, 2008)
	10.9	Audit Committee Financial Expert Agreement by and between Southwest Bancorp, Inc. and David S. Crockett, Jr. (incorporated by reference to Exhibit 10.15 to Annual Report on Form 10-K for the fiscal year ended December 31, 2006)
*	10.10	Southwest Bancorp, Inc. 2008 Stock Based Award Plan (incorporated by reference to Exhibit 10.1 to Quarterly Report on Form 10-Q for the quarter ended June 30, 2008)
*	10.11	Southwest Bancorp, Inc. Form of Restricted Stock Agreement Amendments (incorporated by reference to Exhibit 10.2 to Quarterly Report on Form 10-Q for the quarter ended June 30, 2008)
*	10.12	Change of Control Agreement by and between Southwest Bancorp, Inc. and Priscilla Barnes dated August 3, 2012(incorporated by reference to Exhibit 10.1 to Quarterly Report on Form 10-Q for the quarter ended June 30, 2012)
*	10.13	Amendment to Change of Control Agreement dated December 15, 2015 by and between Southwest Bancorp, Inc. and Priscilla Barnes (incorporated by reference to Exhibit 10.3 to Current Report on Form 8-K filed December 15, 2015)
*	10.14	Employment Agreement dated August 30, 2012 by and among Southwest Bancorp, Inc., the Stillwater National Bank and Trust Company, Bank of Kansas, and Mark W. Funke (incorporated by reference to Exhibit 10.1 to Current Report on Form 8-K filed September 5, 2012)
*	10.15	Amendment to Employment Agreement dated February 24, 2015 by and among Southwest Bancorp, Inc., Bank SNB, and Mark W. Funke (incorporated by reference to Exhibit 10.1 to Current Report on Form 8-K filed February 26, 2015
*	10.16	Amendment to Employment Agreement dated December 15, 2015 by and among Southwest Bancorp, Inc., Bank SNB, and Mark W. Funke (incorporated by reference to Exhibit 10.1 to Current Report on Form 8-K filed December 15, 2015)
*	10.17	Mandatory Retirement Age Policy—Chief Executive Officer (incorporated by reference to Exhibit 10.2 to Current Report on Form 8-K filed September 5, 2012)

100

*	10.18	Employment Agreement dated November 15, 2012 by and among Southwest Bancorp, Inc., Stillwater National Bank and Trust Company, Bank of Kansas, and Joe T. Shockley, Jr. (incorporated by reference to Exhibit 10.1 to Current Report on Form 8-K filed November 16, 2012)
*	10.19	Amendment to Employment Agreement dated December 15, 2015 by and among Southwest Bancorp, Inc., Bank SNB, and Joe T. Shockley, Jr. (incorporated by reference to Exhibit 10.2 to Current Report on Form 8-K filed December 15, 2015)
*	10.20	Description of Stillwater National Bank and Trust Company 2013 Elective Non-Qualified Deferred Compensation Plan (incorporated by reference to Current Report on Form 8-K filed December 27, 2012)
*	10.21	Description of Southwest Bancorp, Inc.Executive Leadership Team Incentive Plan (incorporated by reference to Current Report on Form 8-K filed December 27, 2012)
*	10.22	Description of Amendment to Southwest Bancorp, Inc.Executive Leadership Team Incentive Plan (incorporated by reference to Current Report on Form 8-K filed February 26, 2015)
*	10.23	Change of Control Agreement by and between Southwest Bancorp, Inc. and Brent Bates dated July 27, 2012 (incorporated by reference to Exhibit 10.22 to Annual Report on Form 10-K for the fiscal year ended December 31, 2013)
*	10.24	Amendment to Change of Control Agreement dated December 15, 2015 by and between Southwest Bancorp, Inc. and Brent Bates (filed herewith)
*	10.25	Change of Control Agreement by and between Southwest Bancorp, Inc. and Rusty LaForge dated July 27, 2012 (incorporated by reference to Exhibit 10.23 to Annual Report on Form 10-K for the fiscal year ended December 31, 2013)
*	10.26	Amendment to Change of Control Agreement dated December 15, 2015 by and between Southwest Bancorp, Inc. and Rusty LaForge (filed herewith)
	10.27	Agreement and Plan of Reorganization, dated as of May 27, 2015, by and among Southwest Bancorp, Inc., First Commercial Bancshares, Inc., and First Commercial Bank (incorporated by reference to Exhibit 10.1 to Current Report on Form 8-K filed May 27, 2015)
	10.28	First Amendment to Agreement and Plan of Reorganization, dated as of June 23, 2015, by and among Southwest Bancorp, Inc., First Commercial Bancshares, Inc., and First Commercial Bank (incorporated by reference to Exhibit 2.2 to Registration Statement on Form S-4 (File No. 333-205521))
	10.29	Agreement and Plan of Merger by and between Southwest and Simmons First National Corporation, dated as of December 14, 2016 (incorporated by reference to Exhibit 2.1 to Current Report on Form 8-K filed December 14, 2016)
	21	Subsidiaries of the Registrant
	23 (a), (b)	Consent of Independent Registered Public Accounting Firms
	31(a), (b)	Rule 13a-14(a)/15d-14(a) Certifications
	32(a), (b)	18 U.S.C. Section 1350 Certifications

Exhibit Number	Exhibit Description
101	Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Statements of Financial Condition, (ii) the Consolidated Statements of Operations, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Shareholders’ Equity, (v) the Consolidated Statements of Cash Flows, and (v) the Notes to the Consolidated Financial Statements
*  Management contract or compensatory plan or arrangement required to be filed pursuant to Item 14(c) of Form 10-K.

101

Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SOUTHWEST BANCORP, INC.

March 9,  2017	by: /s/ Mark W. Funke
	Mark W. Funke
	Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

Officers

/s/ Mark W. Funke	March 9,  2017
Mark W. Funke
Director and Chief Executive Officer
(Principal Executive Officer)
/s/ Joe T. Shockley, Jr.	March 9,  2017
Joe T. Shockley, Jr.
Executive Vice President and Chief Financial Officer
(Principal Financial and Accounting Officer)

Directors

/s/ James E. Berry, II	March 9,  2017	/s/ James M. Johnson	March 9,  2017
James E. Berry, II		James M. Johnson
/s/ Thomas D. Berry	March 9,  2017	/s/ Larry J. Lanie	March 9,  2017
Thomas D. Berry		Larry J. Lanie
/s/ John M. Cohlmia	March 9,  2017	/s/ James M Morris, II	March 9,  2017
John Cohlmia		James M. Morris, II
/s/ David S. Crockett, Jr.	March 9,  2017	/s/ Kayse M. Shrum, D.O.	March 9,  2017
David S. Crockett, Jr.		Kayse M. Shrum, D.O.
/s/ StevenC.  Davis	March 9,  2017	/s/ Russell W. Teubner	March 9,  2017
StevenC.  Davis		Russell W. Teubner
/s/ Patrice Douglas	March 9,  2017
Patrice Douglas

102

EX-10.24

AMENDMENT TOCHANGE OF CONTROL AGREEMENT

THIS AMENDMENTTO CHANGE OF CONTROL AGREEMENT (the “Amendment”) is made and entered into as ofthis 15thday of December, 2015 (the “Effective Date”) by and between Southwest Bancorp, Inc., a bank holding company organized under the laws of the State of Oklahoma (“Southwest”), Bank SNB, an Oklahoma banking corporation (“Bank SNB”),  successor by conversion to Bank SNB, National Association, formerly known as Stillwater National Bank and Trust Companyand Brent Bates (“Executive”) with reference to the following:

WHEREAS, Southwest and Executive entered into the Change of Control Agreement dated July 27, 2012(the “Agreement”); and

WHEREAS, Southwest and the Executive have agreed to amendthe Agreement to revise the definition of Change of Control,the severance payable in the event of termination following a Change of Control and to add Bank SNB as a party to the Agreement; and

WHEREAS, pursuant to Section 15 of the Agreement, Southwestand Executive mutuallydesire to amendthe Agreement as set forth herein.

NOW, THEREFORE, BE IT RESOLVED, that the Agreement is hereby amended as follows:  

I.  Amendment to Section 2

Section 2 of the Agreement is hereby replaced in its entirety with the following:

“‘Change of Control’  For purposes of this Agreement, a ‘Change of Control’ shall mean:

(a) the date any entity or person, including a group as defined in Section 13(d)(iii) of the Securities Exchange Act of 1934, (“Person”) shall become the beneficial owner of, or shall have obtained voting control over, thirty percent (30%) or more of either (i) the outstanding common shares of either Southwest or Bank SNB or (ii) the combined voting power of the then outstanding voting securities of Southwest or Bank SNB entitled to vote in the election of directors.  For purposes of this paragraph, any acquisition, ownership, or voting control over Bank SNB by Southwest shall not be a “Change of Control;”

(b) the consummation of a plan of reorganization, merger or consolidation involving Southwest or Bank SNB or the sale of all or substantially all of the assets or deposits of Southwest or Bank SNB, except for a reorganization, merger, consolidation or sale where (A) the stockholders of Southwestor Bank SNB immediately before such reorganization, merger, consolidation or sale own directly or indirectly at least 60% of the combined voting power of the outstanding voting securities of Southwest,  Bank SNB or other entity resulting from such reorganization, merger or consolidation or

purchasing the assets or deposits (the “Surviving Company”) in substantially the same proportion as their ownership of voting securities of Southwest immediately before such reorganization, merger, consolidation or sale, (B) no Person beneficially owns, or has voting control over, thirty percent (30%) or more of either (i) the then outstanding shares of common stock of the Surviving Company, or (ii) the combined voting power of the then outstanding voting securities of the Surviving Company entitled to vote in the election of directors,and (C) the members of the Board immediately before the execution of the agreement providing for such reorganization, merger, consolidation or sale constitute at least half of the members of the board of directors of the Surviving Company, or of a company beneficially owning, directly or indirectly, a majority of the voting securities of the Surviving Company.  For purposes of this paragraph, any acquisition, ownership, or voting control over Bank SNB by Southwest shall not be a “Change of Control;” or

(c) the date there shall have been change in a majority of the Board of either Southwest or Bank SNB within a 12-month period unless the nomination of each new director was approved by the vote of two-thirds (2/3) of directors then still in office who were in office at the beginning of the 12-month period.”

II. Amendment to Subsection 5(a)

Subsection 5(a) of the Agreement is hereby replaced in its entirety with the following:

“(a)Good Reason; Termination Other Than for Cause, Disability or Death.  If, within twenty-four (24) months after the Effective Date, the Company terminates the Executive’s employment other than for Cause, Disability or death, or if the Executive terminates his employment for Good Reason:

(i) the Company will pay to the Executive in a single lump sum payment within 30 days of the Date of Termination base salary and accrued vacation pay through the Date of Termination;

(ii) the Company will pay to Executive in a single lump sum payment within 30 days of the Date of Termination an amount equal to the sum of:  (A) two (2) times the Executive’s base salary in effect on the Effective Date and (B) one (1) times the average of the “Company Incentive Portion” of the annual bonus paid to Executive under the Southwest Bancorp Executive Leadership Team Incentive Plan during the three (3) years immediately prior to the Effective Date;

(iii) the Company will maintain in full force and effect, for the continued benefit of Executive (and Executive’s spouse and/or eligible dependents, as applicable) for a period of twelve (12) months following the Termination Date, participation by Executive (and Executive’s spouse and/or eligible dependents, as applicable) in the medical, hospitalization, and dental programs maintained by the Company for the benefit of its executive officers as in effect on the Termination Date, at such level and terms and conditions

2

(including, without limitation, contributions required by Executive for such benefits) as in effect on the Termination Date; provided, if Executive (or his spouse) is eligible for Medicare or a similar type of governmental medical benefit, such benefit shall be the primary provider before Company medical benefits are provided.  However, if Executive becomes reemployed with another employer and is eligible to receive medical, hospitalization and dental benefits under another employer-provided plan, the medical, hospitalization and dental benefits described herein shall be secondary to those provided under such other plan during the applicable period.  If any plan pursuant to which such benefits are provided is not, or ceases prior to the expiration of the period of continuation coverage to be, exempt from the application of Section 409A of the Code under Treasury Regulation Section 1.409A-1(a)(5), then an amount equal to each remaining premium payment shall thereafter be paid to Executive as currently taxable compensation in substantially equal monthly installments over the continuation coverage period (or the remaining portion thereof);

(iv) the Company will reimburse Executive pursuant to the Company’s policy for reasonable business expenses incurred, but not paid, prior to termination of employment, unless such termination resulted from a misappropriation of Company funds;

(v) any service condition contained in any equity awards outstanding in favor of Executive shall be deemed to have been satisfied immediately prior to the Termination Date; and

(vi) Executive will be entitled to any other rights, compensation and/or benefits as may be due to Executive following termination to which he is otherwise entitled in accordance with the terms and provisions of any plans or programs of the Company.”

III. Amendment to Definition of Company

The definition of “Company” as provided in the first paragraph of the Agreement shall be amended to include both Southwest Bancorp and Bank SNB.

Except as provided in this Amendment, the Agreement shall remain in full force and effect.

[Signature Page Follows]

3

EXECUTED as of the day and year first written above.

SOUTHWEST:SOUTHWEST BANCORP, INC.

By:/s/ Mark W. Funke

Name: Mark Funke

Title: Chief Executive Officer

BANK SNB:BANK SNB

By:/s/ Mark W. Funke

Name:Mark Funke

Title:Chief Executive Officer

EXECUTIVE:/s/ Brent Bates

Brent Bates

4

EX-10.26

AMENDMENT TOCHANGE OF CONTROL AGREEMENT

THIS AMENDMENTTO CHANGE OF CONTROL AGREEMENT (the “Amendment”) is made and entered into as ofthis 15thday of December, 2015 (the “Effective Date”) by and between Southwest Bancorp, Inc., a bank holding company organized under the laws of the State of Oklahoma (“Southwest”), Bank SNB, an Oklahoma banking corporation (“Bank SNB”),  successor by conversion to Bank SNB, National Association, formerly known as Stillwater National Bank and Trust Companyand Rusty LaForge (“Executive”) with reference to the following:

WHEREAS, Southwest and Executive entered into the Change of Control Agreement dated July 27, 2012 (the “Agreement”); and

WHEREAS, Southwest and the Executive have agreed to amendthe Agreement to revise the definition of Change of Control,the severance payable in the event of termination following a Change of Control and to add Bank SNB as a party to the Agreement; and

WHEREAS, pursuant to Section 15 of the Agreement, Southwestand Executive mutuallydesire to amendthe Agreement as set forth herein.

NOW, THEREFORE, BE IT RESOLVED, that the Agreement is hereby amended as follows:  

I.  Amendment to Section 2

Section 2 of the Agreement is hereby replaced in its entirety with the following:

“‘Change of Control’  For purposes of this Agreement, a ‘Change of Control’ shall mean:

(a) the date any entity or person, including a group as defined in Section 13(d)(iii) of the Securities Exchange Act of 1934, (“Person”) shall become the beneficial owner of, or shall have obtained voting control over, thirty percent (30%) or more of either (i) the outstanding common shares of either Southwest or Bank SNB or (ii) the combined voting power of the then outstanding voting securities of Southwest or Bank SNB entitled to vote in the election of directors.  For purposes of this paragraph, any acquisition, ownership, or voting control over Bank SNB by Southwest shall not be a “Change of Control;”

(b) the consummation of a plan of reorganization, merger or consolidation involving Southwest or Bank SNB or the sale of all or substantially all of the assets or deposits of Southwest or Bank SNB, except for a reorganization, merger, consolidation or sale where (A) the stockholders of Southwestor Bank SNB immediately before such reorganization, merger, consolidation or sale own directly or indirectly at least 60% of the combined voting power of the outstanding voting securities of Southwest,  Bank SNB or other entity resulting from such reorganization, merger or consolidation or

purchasing the assets or deposits (the “Surviving Company”) in substantially the same proportion as their ownership of voting securities of Southwest immediately before such reorganization, merger, consolidation or sale, (B) no Person beneficially owns, or has voting control over, thirty percent (30%) or more of either (i) the then outstanding shares of common stock of the Surviving Company, or (ii) the combined voting power of the then outstanding voting securities of the Surviving Company entitled to vote in the election of directors,and (C) the members of the Board immediately before the execution of the agreement providing for such reorganization, merger, consolidation or sale constitute at least half of the members of the board of directors of the Surviving Company, or of a company beneficially owning, directly or indirectly, a majority of the voting securities of the Surviving Company.  For purposes of this paragraph, any acquisition, ownership, or voting control over Bank SNB by Southwest shall not be a “Change of Control;” or

(c) the date there shall have been change in a majority of the Board of either Southwest or Bank SNB within a 12-month period unless the nomination of each new director was approved by the vote of two-thirds (2/3) of directors then still in office who were in office at the beginning of the 12-month period.”

II. Amendment to Subsection 5(a)

Subsection 5(a) of the Agreement is hereby replaced in its entirety with the following:

“(a)Good Reason; Termination Other Than for Cause, Disability or Death.  If, within twenty-four (24) months after the Effective Date, the Company terminates the Executive’s employment other than for Cause, Disability or death, or if the Executive terminates his employment for Good Reason:

(i) the Company will pay to the Executive in a single lump sum payment within 30 days of the Date of Termination base salary and accrued vacation pay through the Date of Termination;

(ii) the Company will pay to Executive in a single lump sum payment within 30 days of the Date of Termination an amount equal to the sum of:  (A) two (2) times the Executive’s base salary in effect on the Effective Date and (B) one (1) times the average of the “Company Incentive Portion” of the annual bonus paid to Executive under the Southwest Bancorp Executive Leadership Team Incentive Plan during the three (3) years immediately prior to the Effective Date;

(iii) the Company will maintain in full force and effect, for the continued benefit of Executive (and Executive’s spouse and/or eligible dependents, as applicable) for a period of twelve (12) months following the Termination Date, participation by Executive (and Executive’s spouse and/or eligible dependents, as applicable) in the medical, hospitalization, and dental programs maintained by the Company for the benefit of its executive officers as in effect on the Termination Date, at such level and terms and conditions

2

(including, without limitation, contributions required by Executive for such benefits) as in effect on the Termination Date; provided, if Executive (or his spouse) is eligible for Medicare or a similar type of governmental medical benefit, such benefit shall be the primary provider before Company medical benefits are provided.  However, if Executive becomes reemployed with another employer and is eligible to receive medical, hospitalization and dental benefits under another employer-provided plan, the medical, hospitalization and dental benefits described herein shall be secondary to those provided under such other plan during the applicable period.  If any plan pursuant to which such benefits are provided is not, or ceases prior to the expiration of the period of continuation coverage to be, exempt from the application of Section 409A of the Code under Treasury Regulation Section 1.409A-1(a)(5), then an amount equal to each remaining premium payment shall thereafter be paid to Executive as currently taxable compensation in substantially equal monthly installments over the continuation coverage period (or the remaining portion thereof);

(iv) the Company will reimburse Executive pursuant to the Company’s policy for reasonable business expenses incurred, but not paid, prior to termination of employment, unless such termination resulted from a misappropriation of Company funds;

(v) any service condition contained in any equity awards outstanding in favor of Executive shall be deemed to have been satisfied immediately prior to the Termination Date; and

(vi) Executive will be entitled to any other rights, compensation and/or benefits as may be due to Executive following termination to which he is otherwise entitled in accordance with the terms and provisions of any plans or programs of the Company.”

III. Amendment to Definition of Company

The definition of “Company” as provided in the first paragraph of the Agreement shall be amended to include both Southwest Bancorp and Bank SNB.

Except as provided in this Amendment, the Agreement shall remain in full force and effect.

[Signature Page Follows]

3

EXECUTED as of the day and year first written above.

SOUTHWEST:SOUTHWEST BANCORP, INC.

By: /s/ Mark W. Funke

Name:Mark Funke

Title:Chief Executive Officer

BANK SNB:BANK SNB

By: /s/ Mark W. Funke

Name: Mark Funke

Title: Chief Executive Officer

EXECUTIVE:/s/ Rusty LaForge

Rusty LaForge

4

EX-21

Exhibit21

SUBSIDIARIESOFTHEREGISTRANT

ThefollowingisalistofallsubsidiariesoftheRegistrantasofMarch9,2017:

Name	Jurisdiction of Incorporation
OKSBStatutoryTrustI	Connecticut
SBICapitalTrustII	Delaware
First Commercial Statutory Trust I	Delaware
SNBCapitalCorporation	Oklahoma
Bank SNB	Oklahoma
QuadJHoldings,LLC*	Oklahoma
CashSource,Inc.*	Oklahoma
StillwaterNationalBuildingCorporation*	Oklahoma
CRKProperties,Inc.*	Oklahoma
CRKTechnologies,LLC**	Oklahoma
CRKStretford,LLC**	Oklahoma
BastropCRK,LLC**	Oklahoma
SNBRealEstateHoldings,Inc.*	Delaware
SNBREIT,Inc.***	Delaware
StillwaterProperties,Inc.*	Oklahoma
GrandHillInvestments,LLC****	Oklahoma
Rockwell Community Development, Inc.*	Oklahoma
FNBE Real Estate, Inc.*	Oklahoma

*	DirectsubsidiaryofBank SNB
**	DirectsubsidiaryofCRKProperties,Inc.
***	DirectsubsidiaryofSNBRealEstateHoldings,Inc.
****	DirectsubsidiaryofStillwaterProperties,Inc.

EX-23.A

Exhibit23(a)

CONSENTOFINDEPENDENTREGISTEREDPUBLICACCOUNTINGFIRM

We have issued our reports dated March 9, 2017, with respect to the consolidated financial statements and effectiveness of internal control over financial reporting included in this Annual Report (Form 10-K) of Southwest Bancorp, Inc. for the year ended December 31, 2016.  We hereby consent to the incorporation by reference of said reports in the following Registration Statements of Southwest Bancorp, Inc.:

1) Registration Statement (Form S-8, No. 33-97850) pertaining to the Employee Stock Purchase Plan of Southwest Bancorp, Inc.

2) Registration Statement (Form S-8, No. 333-155648) pertaining to the 2008 Stock Based Award Plan of Southwest Bancorp, Inc.

/s/BKD, LLP

Oklahoma City,Oklahoma

March9,2017

EX-23.B

Exhibit23(b)

CONSENTOFINDEPENDENTREGISTEREDPUBLICACCOUNTINGFIRM

We consent to the use of our report dated March 10, 2015 included in the Annual Report on Form 10-K of Southwest Bancorp, Inc., for the year ended December 31, 2016, with respect to the consolidated financial statements of Southwest Bancorp, Inc. 

In addition, we consent to the incorporation by reference in the following Registration Statements:

(1)   Registration Statement (Form S-8, No. 33-97850) pertaining to the Employee Stock Purchase Plan of Southwest Bancorp, Inc.

(2)  RegistrationStatement(Form S-8,No.333-155648)pertainingtothe2008Stock BasedAwardPlan ofSouthwestBancorp,Inc.

of our report dated March 10, 2015, with respect to the consolidated financial statements of Southwest Bancorp, Inc., included in this Form 10-K of Southwest Bancorp, Inc. for the  year ended December 31, 2016.

/s/ Ernst & Young, LLP

Tulsa, Oklahoma

March 9, 2017

EX-31.A

Exhibit 31(a)

Rule 13a-14(a)/15d-14(a) Certifications

I, Mark W. Funke, certify that:

1.   I have reviewed this report on Form 10-K of Southwest Bancorp, Inc.;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes, in accordance with generally accepted accounting principles;

(c)  Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based upon such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent function):

(a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 9, 2017	/s/ Mark W. Funke
	Mark W. Funke
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.B

Exhibit 31(b)

Rule 13a-14(a)/15d-14(a) Certifications

I, Joe T. Shockley, Jr., certify that:

1.   I have reviewed this report on Form 10-K of Southwest Bancorp, Inc.;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes, in accordance with generally accepted accounting principles;

(c)  Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based upon such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent function):

(a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:  March 9, 2017	/s/ Joe T. Shockley, Jr.
	Joe T. Shockley, Jr.
	Executive Vice President, Chief Financial Officer
	(Principal Financial Officer)

EX-32.A

Exhibit 32(a)

18 U.S.C. Section 1350 Certifications

I hereby certify pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of2002, to the best of my knowledge and belief, that the accompanying Form 10-K of Southwest Bancorp, Inc. (“Southwest”) for the three and twelve months ended December31, 2016, fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and that the information contained in this Form 10-K fairly presents, in all material respects, the financial condition and results of operations of Southwest.

By:  /s/ Mark W. Funke	March 9, 2017
Mark W. Funke	Date
President and Chief Executive Officer
(Principal Executive Officer)

EX-32.B

Exhibit 32(b)

18 U.S.C. Section 1350 Certifications

I hereby certify pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of2002, to the best of my knowledge and belief, that the accompanying Form 10-K of Southwest Bancorp, Inc. (“Southwest”) for the three and twelve months ended December31, 2016, fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and that the information contained in this Form 10-K fairly presents, in all material respects, the financial condition and results of operations of Southwest.

By: /s/ Joe T. Shockley, Jr.	March 9, 2017
Joe T. Shockley, Jr.	Date
Executive Vice President, Chief Financial
Officer
(Principal Financial Officer)

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Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Mar. 09, 2017	Jun. 30, 2016
Document And Entity Information [Abstract]
Entity Registrant Name	SOUTHWEST BANCORP INC
Entity Central Index Key	0000914374
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Amendment Flag	false
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Trading Symbol	oksb
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 297.0
Entity Common Stock, Shares Outstanding		18,689,022
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes

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Consolidated Statements Of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 36,831	$ 24,971
Interest-bearing deposits	38,819	53,158
Cash and cash equivalents	75,650	78,129
Securities held to maturity (fair values of $10,677 and $12,282, respectively)	10,443	11,797
Securities available for sale (amortized cost of $427,113 and $401,136, respectively)	426,218	400,331
Loans held for sale	4,386	7,453
Loans receivable	1,872,746	1,771,976
Less: Allowance for loan losses	(27,546)	(26,106)
Net loans receivable	1,845,200	1,745,870
Accrued interest receivable	6,194	5,767
Non-hedge derivative asset	1,235	1,793
Premises and equipment, net	22,808	23,819
Other real estate	350	2,274
Goodwill	13,545	13,467
Other intangible assets, net	5,790	6,615
Bank owned life insurance	28,575	27,676
Other assets	34,998	32,031
Total assets	2,475,392	2,357,022
Deposits:
Noninterest-bearing demand	551,709	596,494
Interest-bearing demand	152,656	151,015
Money market accounts	567,058	534,357
Savings accounts	56,410	56,333
Time deposits of $100,000 or more	360,307	311,538
Other time deposits	257,878	234,368
Total deposits	1,946,018	1,884,105
Accrued interest payable	1,132	867
Non-hedge derivative liability	1,235	1,793
Other liabilities	10,171	11,684
Other borrowings	183,814	110,927
Subordinated debentures	46,393	51,548
Total liabilities	2,188,763	2,060,924
Shareholders' equity:
Common stock - $1 par value; 40,000,000 shares authorized; 21,230,714 and 21,138,028 shares issued, respectively	21,231	21,138
Additional paid in capital	123,112	121,966
Retained earnings	184,840	173,210
Accumulated other comprehensive loss	(907)	(1,290)
Treasury stock, at cost; 2,555,987 and 1,131,226 shares, respectively	(41,647)	(18,926)
Total shareholders' equity	286,629	296,098
Total liabilities & shareholders' equity	$ 2,475,392	$ 2,357,022

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Consolidated Statements Of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements Of Financial Condition [Abstract]
Held to maturity securities, fair value	$ 10,677	$ 12,282
Available for sale securities, amortized cost	$ 427,113	$ 401,136
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	21,230,714	21,138,028
Treasury Stock, Shares	2,555,987	1,131,226

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Consolidated Statements Of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest income:
Interest and fees on loans	$ 81,527	$ 67,644	$ 64,224
Investment securities:
U.S. Government and agency obligations	1,104	1,186	1,490
Mortgage-backed securities	3,845	3,326	3,459
State and political subdivisions	1,383	1,212	1,171
Other securities	1,075	835	1,026
Other interest-earning assets	206	280	422
Total interest income	89,140	74,483	71,792
Interest expense:
Interest-bearing demand	243	153	146
Money market accounts	1,391	830	620
Savings accounts	74	44	38
Time deposits of $100,000 or more	2,031	910	1,428
Other time deposits	2,229	1,861	1,423
Other borrowings	1,379	984	900
Subordinated debentures	2,350	2,284	2,233
Total interest expense	9,697	7,066	6,788
Net interest income	79,443	67,417	65,004
Provision (credit) for loan losses	4,769	(3,566)	(6,624)
Net interest income after provision (credit) for loan losses	74,674	70,983	71,628
Noninterest income:
Service charges and fees	10,558	9,995	10,222
Other noninterest income	2,561	2,121	898
Gain on sale of bank branches, net			4,378
Gain on sales of mortgage loans, net	2,672	2,179	1,549
Gain on sales/calls of investment securities, net	294	162	1,884
Total noninterest income	16,085	14,457	18,931
Noninterest expense:
Salaries and employee benefits	37,724	34,850	31,830
Occupancy	11,059	9,359	9,193
Data processing	1,886	2,178	1,776
FDIC and other insurance	1,376	1,353	1,305
Other real estate, net	(222)	161	594
Provision for Other Losses	130	(255)	(380)
Provision (credit) for unfunded loan commitments	2,500	2,400
General and administrative	11,293	10,594	12,594
Total noninterest expense	63,246	58,240	56,912
Income before taxes	27,513	27,200	33,647
Taxes on income	9,809	9,793	12,617
Net income	17,704	17,407	21,030
Net income available to common shareholders	$ 17,704	$ 17,407	$ 21,030
Basic earnings per common share	$ 0.93	$ 0.90	$ 1.07
Diluted earnings per common share	0.92	0.90	1.06
Common dividends declared per share	$ 0.32	$ 0.24	$ 0.16

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Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 17,704	$ 17,407	$ 21,030
Other comprehensive income:
Unrealized gain (loss) on available for sale securities	204	(1,599)	5,784
Reclassification adjustment for net gains arising during the period	(294)	(162)	(1,884)
Change in fair value of derivative used for cash flow hedge	715	216	381
Other comprehensive income (loss), before tax	625	(1,545)	4,281
Tax (expense) benefit related to items of other comprehensive income (loss)	(242)	650	(1,665)
Other comprehensive income (loss), net of tax	383	(895)	2,616
Comprehensive income	$ 18,087	$ 16,512	$ 23,646

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Consolidated Statements Of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities:
Net income	$ 17,704,000	$ 17,407,000	$ 21,030,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision (credit) for loan losses	4,769,000	(3,566,000)	(6,624,000)
Adjustments to other real estate		63,000	576,000
Deferred tax expense	556,000	2,116,000	9,180,000
Asset depreciation	2,814,000	2,468,000	2,829,000
Securities premium amortization, net of discount accretion	3,724,000	2,658,000	2,624,000
Amortization of intangibles	1,901,000	1,085,000	780,000
Goodwill impairment	0	0	0
Restricted stock amortization expense	769,000	1,139,000	210,000
Net gain on sales/calls of investment securities	(294,000)	(162,000)	(1,884,000)
Net gain on sales of mortgage loans	(2,672,000)	(2,179,000)	(1,549,000)
Net (gain) loss on sales of premises/equipment	99,000	(16,000)	19,000
Net (gain) loss on sales of other real estate	(275,000)	123,000	(200,000)
Net gain from sale of bank branches			(4,378,000)
Bank owned life insurance	(899,000)	(523,000)
Proceeds from sales of held for sale loans	126,459,000	105,648,000	83,258,000
Held for sale loans originated for resale	(120,909,000)	(110,161,000)	(75,887,000)
Net changes in assets and liabilities:
Accrued interest receivable	(427,000)	(254,000)	311,000
Other assets	(5,130,000)	(1,886,000)	(4,152,000)
Excess tax expense from share-based payment arrangements			(2,000)
Accrued interest payable	265,000	57,000	(76,000)
Other liabilities	(1,473,000)	915,000	638,000
Net cash provided by operating activities	26,981,000	14,932,000	26,703,000
Investing activities:
Proceeds from sales of available for sale securities	43,593,000		1,419,000
Held to maturity securities	1,650,000	2,060,000	2,250,000
Available for sale securities	86,691,000	98,904,000	79,282,000
Redemptions of other investments			696,000
Purchases of held to maturity securities	(444,000)	(1,629,000)	(1,725,000)
Purchases of available for sale securities	(159,542,000)	(115,710,000)	(51,344,000)
Purchases of bank owned life insurance		(20,000,000)
Loans originated, net of principal repayments	(104,262,000)	(169,426,000)	(166,971,000)
Cash outflows from sale of bank branches, net			(94,806,000)
Cash received in business combinations, net of cash paid		12,284,000
Purchases of premises and equipment	(2,078,000)	(2,177,000)	(2,096,000)
Proceeds from sales of premises and equipment	176,000	76,000	99,000
Proceeds from sales of other real estate	2,681,000	1,185,000	1,401,000
Net cash used in investing activities	(131,535,000)	(194,433,000)	(231,795,000)
Financing activities:
Net increase in deposits	61,913,000	104,876,000	80,488,000
Net increase (decrease) in other borrowings	72,887,000	24,367,000	(1,253,000)
Net proceeds from issuance of common stock	1,239,000	682,000	385,000
Purchases of treasury stock	(22,721,000)	(8,624,000)	(10,302,000)
Redemption of trust preferred securities	(5,155,000)
Excess tax expense from share-based payment arrangements			2,000
Common stock dividends paid	(6,088,000)	(4,607,000)	(3,131,000)
Net cash provided by financing activities	102,075,000	116,694,000	66,189,000
Net decrease in cash and cash equivalents	(2,479,000)	(62,807,000)	(138,903,000)
Cash and cash equivalents:
Beginning of period	78,129,000	140,936,000	279,839,000
End of period	$ 75,650,000	$ 78,129,000	$ 140,936,000

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Consolidated Statement Of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Gain/(Loss) [Member]	Treasury Stock [Member]	Total
Beginning balance, Shares at Dec. 31, 2013	19,732,926
Beginning balance at Dec. 31, 2013	$ 19,733	$ 99,937	$ 142,528	$ (3,011)		$ 259,187
Dividends declared:
Common			(3,131)			(3,131)
Net common stock issued under employee plans and related tax expense	$ 78	1,308				1,386
Net common stock issued under employee plans and related tax expense, shares	77,951
Other comprehensive income (loss), net of tax				2,616		2,616
Treasury shares purchased					$ (10,302)	(10,302)
Treasury shares purchased, shares	(617,818)
Net income			21,030			21,030
Ending balance, Shares at Dec. 31, 2014	19,193,059
Ending balance at Dec. 31, 2014	$ 19,811	101,245	160,427	(395)	(10,302)	270,786
Dividends declared:
Common			(4,624)			(4,624)
Stock issued for Bancshares acquisition	$ 1,214	20,152				21,366
Stock issued for Bancshares acquisition, shares	1,213,985
Net common stock issued under employee plans and related tax expense	$ 113	569				682
Net common stock issued under employee plans and related tax expense, shares	113,166
Other comprehensive income (loss), net of tax				(895)		(895)
Treasury shares purchased					(8,624)	(8,624)
Treasury shares purchased, shares	(513,408)
Net income			17,407			17,407
Ending balance, Shares at Dec. 31, 2015	20,006,802
Ending balance at Dec. 31, 2015	$ 21,138	121,966	173,210	(1,290)	(18,926)	296,098
Dividends declared:
Common			(6,074)			(6,074)
Net common stock issued under employee plans and related tax expense	$ 93	1,146				1,239
Net common stock issued under employee plans and related tax expense, shares	92,686
Other comprehensive income (loss), net of tax				383		383
Treasury shares purchased					(22,721)	(22,721)
Treasury shares purchased, shares	(1,424,761)
Net income			17,704			17,704
Ending balance, Shares at Dec. 31, 2016	18,674,727
Ending balance at Dec. 31, 2016	$ 21,231	$ 123,112	$ 184,840	$ (907)	$ (41,647)	$ 286,629

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Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statement Of Shareholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.32	$ 0.24	$ 0.16

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Summary of Significant Accounting And Reporting Policies

12 Months Ended

Dec. 31, 2016

Significant Accounting And Reporting Policies [Abstract]

Significant Accounting And Reporting Policies

SOUTHWEST BANCORP, INC.

Notes to the Consolidated Financial Statements

For the Years Ended December 31, 2016, 2015 and 2014

Note 1:Summary of Significant Accounting and Reporting Policies

Organization and Nature of Operations – Southwest Bancorp Inc. (“we”, “our”, “us”, or “Southwest”), incorporated in 1981, is a financial holding company headquartered in Stillwater, Oklahoma engaged primarily in commercial and retail financial services in the states of Oklahoma, Texas, Kansas, and Colorado. The accompanying consolidated financial statements include the accounts of Bank SNB, an Oklahoma banking corporation established in 1894, and the consolidated subsidiaries of Bank SNB. Bank SNB is a  wholly owned, direct subsidiary of ours.All significant intercompany balances and transactions have been eliminated in consolidation.

On October 9, 2015, we completed the acquisition of Bancshares through the merger of Bancshares with and into us. The Bancshares Merger was consummated pursuant to the Bancshares Merger Agreement dated as of May 27, 2015. The Bancshares Merger expanded our presence in the Oklahoma City metro area with five additional banking centers, increasing our total to ten. It also expanded our geographic footprint to Colorado with three full-service banking centers and one loan production office in Denver.

Basis of Presentation – The accounting and reporting policies conform to accounting principles generally accepted in the United States and to generally accepted practices within the banking industry. The Consolidated Financial Statements include the accounts of Southwest and all other entities in which we have a controlling financial interest. All significant intercompany accounts and transactions have been eliminated in consolidation.

Certain reclassifications have been made to prior year amounts on the Consolidated Statements of Operations to conform to current year presentation.

We have evaluated subsequent events for potential recognition and disclosure through the issue date of the Consolidated Financial Statements included in this Annual Report on Form 10-K. 

Management Estimates – In preparing our financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the dates shown on the Consolidated Statements of Financial Condition and revenues and expenses during the periods reported. Actual results could differ significantly from those estimates. Changes in economic conditions could affect the determination of material estimates such as the allowance for loan losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, income taxes, and the fair value of financial instruments.

Cash and Cash Equivalents – For purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from depository institutions, and federal funds sold. Interest-bearing balances held at depository institutions were $38.8 million at December 31, 2016 and $53.2 million at December 31, 2015. Federal funds sold are sold for one-to-four day periods.

Cash paid for interest totaled $9.7 million in 2016, $7.0 million in 2015, and $6.9 million in 2014. Cash paid for income taxes totaled  $9.4 million in 2016, $7.1 million in 2015, and $4.0 million in 2014. Noncash transactions included stock issued for the acquisition of Bancshares of $21.4 million in 2015 and transfer of loans to other real estate totaling $0.5 million in 2016 and $0.3 million in 2015 and $2.2 million in 2014.

Bank SNB is required by the FRB to maintain average reserve balances. Cash and cash equivalents in the Consolidated Statements of Financial Condition include restricted amounts of $1.0 million and $7.0 million at December 31, 2016 and December 31, 2015, respectively.

Investment Securities – Investments in debt and equity securities are identified as held to maturity or available for sale based on management considerations of asset/liability strategy, changes in interest rates and prepayment risk, the need to increase liquidity, and other factors, including management’s intent and ability to hold securities to maturity. We have the ability and intent to hold to maturity our investment securities classified as held to maturity. We had no investments held for trading purposes for any period presented. Under certain circumstances (including the deterioration of the issuer’s creditworthiness, a change in tax law, or statutory or regulatory requirements), we may change the investment security classification. The classifications we utilize determine the related accounting treatment for each category of investments. Available for sale securities are accounted for at fair value with unrealized gains or losses, net of taxes, excluded from operations and reported as accumulated other comprehensive income or loss. Held to maturity securities are accounted for at amortized cost. Securities with limited marketability, such as FRB stock, FHLB stock, and certain other investments, are carried at cost and included in other assets.

All investment securities are adjusted for amortization of premiums and accretion of discounts. Amortization of premiums and accretion of discounts are recorded to operations over the contractual maturity or estimated life of the individual investment using the level yield method. Gain or loss on sale of investments is based upon the specific identification method. Income earned on our investments in state and political subdivisions generally is not subject to ordinary Federal income tax.

In accordance with authoritative accounting guidance under ASC 320, Debt and Equity Securities, declines in fair value of held-to-maturity and available-for-sale securities below their cost that are deemed to be other-than-temporary are reflected in earnings as realized losses to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income. Under this guidance, we evaluate investment securities for other-than-temporary impairment on at least a quarterly basis, or more frequently when economic or market conditions warrant such an evaluation.

Federal Reserve Bank and Federal Home Loan Bank Stock – Bank SNB is a member of its regional FRB and FHLB system. FHLB members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional accounts. Both FRB and FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income.

Loans – Interest on loans is accrued and credited to operations based upon the principal amount outstanding. Loan origination fees and certain costs of originated loans are amortized as an adjustment to the yield over the term of the loan. Net unamortized deferred loan fees were  $2.5 million at December 31, 2016 and $1.5 million at 2015. Loans are reported at the principal balance outstanding net of the unamortized deferred loan fees.

In general, our policy for nonaccrual loans requires that accrued interest income on nonaccrual loans is written off after the loan is 90 days past due, and that subsequent interest income is recorded when cash receipts are received from the borrower. We identify past due loans based on contractual terms on a loan by loan basis. 

A loan is considered to be impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. The allowance for loan losses related to loans that are evaluated for impairment is based either on the discounted cash flows using the loan’s initial effective interest rate or on the fair value of the collateral for certain collateral dependent loans. Smaller balance, homogeneous loans, including mortgage, and consumer, are collectively evaluated for impairment. This evaluation is inherently subjective as it requires material estimates including the amounts and timing of future cash flows expected to be received on impaired loans that may be susceptible to significant change. 

Loans Held for Sale -- We originate real estate mortgage loans for either portfolio investment or sale in the secondary market. During the period of origination, real estate mortgage loans are designated as held either for investment purposes or sale. Mortgage loans held for sale are generally sold within a one-month period from loan closing at amounts determined by the investor commitment based upon the pricing of the loan.

Loans Acquired through Business Combination with Deteriorated Credit Quality  – The accounting guidance of ASC 310.30, Loan and Debt Securities Acquired with Deteriorated Credit Quality,  applies to loans acquired in a business combination that have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that we will be unable to collect all contractually required payment receivables. In accordance with this guidance, these loans are initially recorded at fair value (as determined by the present value of expected future cash flows) with no valuation allowance. The difference between the undiscounted cash flows expected at acquisition and the investment in the loan, or the “accretable yield”, is recognized as interest income over the life of the loan using a method that approximates the level-yield method. Contractually required payments for interest and principal that exceed the undiscounted cash flows expected at acquisition, or the “nonaccretable difference”, are not recognized as a yield adjustment, a loss accrual, or a valuation allowance. Increases in expected cash flows subsequent to the initial investment are recognized prospectively through adjustment of the yield on the loan over its remaining life. Decreases in expected cash flows are recognized as impairments. Valuation allowances on these impaired loans reflect only losses incurred after the acquisition.

Allowance for Loan Losses – The allowance for loan losses is a reserve established through a provision for loan losses charged to operations. Loan amounts which are determined to be uncollectible are charged against this allowance, and recoveries, if any, are added to the allowance. The appropriate amount of the allowance is based on continuous review and evaluation of the loan portfolio and ongoing, quarterly assessments of the probable losses inherent in the loan portfolio. The allowance for loan losses is determined in accordance with regulatory guidelines and generally accepted accounting principles and is comprised of two primary components, specific and general. Allocations of the allowance for loan losses may be made for specific loans, but the entire allowance is available for any loan that, in management’s judgment, should be charged off. 

The specific component relates to loans that are individually classified as impaired. Loans deemed to be impaired are evaluated on an individual basis consistent with ASC 310.10.35, Receivables:  Subsequent Measurement. The amount and level of the impairment allowance is ultimately determined by management’s estimate of the amount of expected future cash flows or, if the loan is collateral dependent, on the value of the collateral, which may vary from period to period depending on changes in the financial condition of the borrower or changes in the estimated value of the collateral. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and deemed as impaired, and classified as nonperforming, potential problem, or performing restructured as applicable. Charge-offs against the allowance for impaired loans are made when and to the extent the loan is deemed uncollectible. 

The general component of the allowance is calculated based on ASC 450, Contingencies. Loans not evaluated for specific allowance are segmented into loan pools by type of loan. The commercial real estate and real estate construction pools are further segmented by the market in which the loan collateral is located. Our primary markets are Oklahoma, Texas, Kansas, and Colorado, and loans secured by real estate in those states are included in the “in-market” pool, with the remaining defaulting to the “out-of-market” pool. Estimated allowances are based on historical loss trends with adjustments factored in based on qualitative risk factors both internal and external to us. The historical loss trend is determined by loan pool and segmentation and is based on the actual loss history experienced by us over the most recent three years. The qualitative risk factors include, but are not limited to, economic and business conditions, changes in lending staff, lending policies and procedures, quality of loan review, changes in the nature and volume of the portfolios, loss and recovery trends, asset quality trends, and legal and regulatory considerations. 

Independent appraisals on real estate collateral securing loans are obtained at origination. New appraisals are obtained periodically and upon discovery of factors that may significantly affect the value of the collateral. Appraisals usually are received within 30 days of request. Results of appraisals on nonperforming and potential problem loans are reviewed promptly upon receipt and also are reviewed monthly and considered in the determination of the allowance for loan losses. We are not aware of any significant time lapses in the process that have resulted, or would result in, a significant delay in determination of a credit weakness, the identification of a loan as nonperforming, or the measurement of an impairment.

Management strives to carefully monitor credit quality and to identify loans that may become nonperforming. At any time, however, there are loans included in the portfolio that will result in losses but that have not been identified as nonperforming or potential problem loans. Because the loan portfolio contains a significant number of commercial and commercial real estate loans with relatively large balances, the unexpected deterioration of one or a few of such loans may cause a significant increase in nonperforming assets and may lead to a material increase in charge-offs and the provision for loan losses in future periods.

Liability for Credit Losses on Unfunded Loan Commitments – Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. 

The reserve for unfunded loan commitments is a liability on ourConsolidated Statements of Financial Condition in other liabilities. The reserve is computed using a methodology similar to that used to determine the allowance for loan losses, modified to take into account the probability of a drawdown on the commitment. At December 31, 2016 and 2015, the balances were  $2.5 million and $2.4 million, respectively.

Premises and Equipment – Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are recorded on a straight-line basis over the estimated useful life of each asset. Useful lives range from 10 years to 40 years for buildings and improvements, and 3 years to 10 years for furniture, fixtures, and equipment. We review the carrying value of long-lived assets used in operations when changes in events or circumstances indicate that the assets might have become impaired. If circumstances required, the review would initially include a comparison of carrying value to the undiscounted cash flows estimated to be generated by those assets. If this review indicates that an asset is impaired, wewould record a charge to operations to reduce the asset’s carrying value to fair value, which is based on estimated discounted cash flows. Long-lived assets that are held for disposal are valued at the lower of the carrying amount or fair value less costs to sell.

Other Real Estate – Assets acquired through or instead of loan foreclosure are considered other real estate. Other real estate is initially recorded at the lesser of the carrying value or fair value less the estimated costs to sell the asset. Write-downs of carrying value required at the time of foreclosure are recorded as a charge to the allowance for loan losses. Costs related to the development of such real estate are capitalized, and costs related to holding the property are expensed. Foreclosed property is subject to periodic revaluation based upon estimates of fair value. In determining the valuation of other real estate, management obtains independent appraisals for significant properties. Valuation adjustments are provided, as necessary, by charges to operations. Profits and losses from operations or sales of foreclosed property are recognized as incurred. At December 31, 2016 and 2015, the balances of other real estate were $0.4  million and $2.3 million, respectively.

Goodwill and Other Intangible Assets – Intangible assets consist of goodwill, core deposit intangibles, and loan servicing rights. Goodwill and core deposit intangibles, which generally result from a business combination, are accounted for under the provisions of ASC 350, Intangibles - Goodwill and Other, and ASC 805, Business Combinations. Loan servicing rights are accounted for under the provisions of ASC 860, Transfers and Servicing.

Goodwill represents the excess of the cost of businesses acquired over the fair value of the net assets acquired and is assigned to reporting units. Goodwill is not amortized, but is tested for impairment at least annually or more frequently if conditions indicate impairment may exist. The evaluation of possible impairment involves significant judgment based upon short-term and long-term projections of future performance of each reporting unit. 

Core deposit intangibles are amortized using an economic life method based on deposit attrition. As a result, amortization will decline over time with most of the amortization occurring during the initial years. The net book value of core deposit intangibles is adjusted for applicable branch sales, if any, and is evaluated for impairment when economic conditions indicate impairment may exist.

When real estate mortgage loans and other loans are sold with servicing retained, an intangible servicing right is initially capitalized based on estimated fair value at the point of origination with the income statement effect recorded in gains on sales of loans. The servicing rights are amortized over the period of estimated net servicing income. Impairment of loan servicing rights is assessed based on the fair value of those rights. We review the carrying value of loan servicing rights quarterly for impairment. At least annually, we obtain estimates of fair value from outside sources to corroborate the results of the valuation model. At December 31, 2016 and 2015, the fair values of loan servicing rights were $4.2 million and $3.7 million, respectively. 

Fair Value Measurements – ASC 820, Fair Value Measurements, defines fair value, establishes a framework for measuring fair value in accordance with generally accepted accounting principles, and expands disclosures about fair value measurements. In general, fair values of financial instruments are based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include amounts to reflect counterparty credit quality and our creditworthiness, among other things, as well as unobservable parameters. Any such valuation adjustments are applied consistently over time.

Derivative Financial Instruments – Ourderivative credit risk policy and our hedging policy permits the use of various derivative financial instruments to manage interest rate risk or to hedge specified assets and liabilities. All derivatives are recorded at fair value on our balance sheet. 

To qualify for hedge accounting, derivatives must be highly effective at reducing the risk associated with the exposure being hedged and must be designated as a hedge at the inception of the derivative contract. We consider a hedge to be highly effective if the change in fair value of the derivative hedging instrument is within 80% to 125% of the opposite change in the fair value of the hedged item attributable to the hedged risk. If derivative instruments are designated as hedges of fair values, and such hedges are highly effective, both the change in the fair value of the hedge and the hedged item are included in current earnings. Fair value adjustments related to cash flow hedges are recorded in other comprehensive income and are reclassified to earnings when the hedged transaction is reflected in earnings. Ineffective portions of hedges are reflected in earnings as they occur. Actual cash receipts and/or payments and related accruals on derivatives related to hedges are recorded as adjustments to the interest income or interest expense associated with the hedged item. During the life of the hedge, we will formally assess whether derivatives designated as hedging instruments continue to be highly effective in offsetting changes in the fair value or cash flows of hedged items. If it is determined that a hedge has ceased to be highly effective, we will discontinue hedge accounting prospectively. At such time, previous adjustments to the carrying value of the hedged item are reversed into current earnings and the derivative instrument is reclassified to a trading position recorded at fair value.

Our qualified customers have the opportunity to participate in our interest rate swap program for the purpose of managing interest rate risk on their variable rate loans with us. If we enter into such agreements with customers, then offsetting agreements are executed between us and approved dealer counterparties to minimize our market risk from changes in interest rates. The counterparty contracts are identical to customer contracts in terms of notional amounts, interest rates, and maturity dates, except for a fixed pricing spread or fee paid to us by the dealer counterparty. These interest rate swaps carry varying degrees of credit, interest rate and market or liquidity risks. The fair value of such derivative instrumentsare recognized as either non-hedge derivative assets or liabilities in the Consolidated Statements of Financial Condition. 

Loan Servicing Income – We earn fees for servicing real estate mortgages and other loans owned by others. These fees are generally calculated on the outstanding principal balance of the loans serviced and are recorded as income when earned.

Taxes on Income – We file consolidated income tax returns with our subsidiaries. Income tax expense is the total of the current year income tax due or refundable, adjusted for permanent differences between items reported in the financial statements and those reported for tax purposes and the change in deferred tax assets and liabilities. Under the asset and liability method, deferred tax assets and liabilities are determined on the basis of the differences between the financial statements and tax basis of assets and liabilities using the enacted tax rates in effect for the year in which the differences are expected to reverse. The net deferred tax asset is reflected as a component of other assets on the Consolidated Statements of Financial Condition.

A valuation allowance, if needed, reduces deferred tax assets to the expected amount most likely to be realized. Realization of deferred tax assets is dependent upon the generation of a sufficient level of future taxable income and recoverable taxes paid in prior years. We recognize net deferred tax assets to the extent that we believe these assets are more likely than not to be realized. In making such determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies, and results of recent operations. Management reviewed all evidence and concluded that a valuation allowance was not needed.

Earnings per Common Share –  ASC 260,  Earnings Per Share, provides that unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and shall be included in the computation of earnings per share pursuant to the two-class method. We have determined that our unvested restricted stock awards are participating securities. Accordingly, earnings per common share is computed using the two-class method prescribed by ASC 260. Using this method, basic earnings per common share is computed based upon net income available to common shareholders divided by the weighted average number of common shares outstanding during each period, which exclude the outstanding unvested restricted stock. Diluted earnings per share is computed using the weighted average number of common shares determined for the basic earnings per common share computation plus the dilutive effect of restricted stock awards using the treasury stock method. Restricted stock awards, where the exercise price was greater than the average market price of common shares, were not included in the computation of earnings per diluted share as they would have been anti-dilutive. At December 31, 2016 and 2015, there were 6,573 and 38,145 anti-dilutive restricted stock awards outstanding, respectively. 

A reconciliation of the weighted-average common shares used in the calculations of basic and diluted earnings per common share for the reported periods is provided at“Note 15:  Earnings per Common Share” on page 86.  

Share-Based Compensation – The Southwest Bancorp, Inc. 2008 Stock Based Award Plan (the “2008 Stock Plan”), provides selected key employees with the opportunity to acquire common stock through stock options or restricted stock awards. Compensation cost is recognized based on the fair value of these awards at the date of grant. The exercise price of all options granted under the 2008 Stock Plan is the fair market value on the grant date, while the market price of our common stock at the date of grant is used for restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period. Depending upon terms of the stock option agreements, stock options generally become exercisable on an annual basis and expire from five to ten years after the date of grant.

The 2008 Stock Plan authorized awards for up to 800,000 shares of our common stock over its ten-year term.

Comprehensive Income – Our comprehensive income (net income plus all other changes in shareholders’ equity from non-equity sources) consists of our net income, the after tax effect of changes in the net unrealized gains (losses) in our available for sale securities, reclassification adjustments for net (gains) losses, and changes in the accumulated gain (loss) on the effective cash flow hedging instrument.

Simmons First National Corporation (Pending Merger)–On December 14, 2016, we entered into a Merger Agreement with Simmons, an Arkansas corporation, pursuant to which, and subject to its terms and conditions, Simmons will acquire all of our outstanding capital stock for $95.0 million in cash and 7,250,000 shares of Simmons’s common stock, representing an aggregate Merger consideration of approximately $564.4 million (based on Simmons’ common stock closing price as of December 13, 2016), subject to potential adjustments.

Simmons conducts banking operations through 150 financial centers located in communities throughout Arkansas, Kansas, Missouri and Tennessee. As of December 31, 2016, Simmons had $8.4 billion in total assets, $5.6 billion in loans and $6.7 billion in deposits. The completion of the Merger is subject to, among other things, regulatory and shareholder approval and other customary closing conditions.

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Acquisitions

12 Months Ended

Dec. 31, 2016

Acquisitions [Abstract]

Acquisitions

Note 2:  Acquisitions

On October 9, 2015, we completed the acquisition of Bancshares, through the merger of Bancshares with and into us. The Bancshares Merger was consummated pursuant to the Bancshares Merger Agreement dated as of May 27, 2015. The Bancshares Merger expanded our presence in the Oklahoma City metro area with five additional banking centers, increasing our total to ten. It also expanded our geographic footprint to Colorado with three full-service banking centers and one loan production office in Denver.

Under the terms of the Bancshares Merger Agreement, at the effective time of the Bancshares Merger, all outstanding shares of Bancshares common stock were converted into the right to receive an aggregate merger consideration of $41.8 million, 51% paid in shares of our common stock, representing an aggregate 1,213,985 shares of our common stock, plus cash in lieu of any fractional shares, and 49% paid in cash in an aggregate amount equal to $20.4 million. 

The Bancshares Merger added$301.5 million in assets, $202.4 million in loans, $245.2 million in deposits, $12.3 million in goodwill, and $2.7 million in core deposit intangible.

In connection with the Bancshares Merger, First Commercial Bank was merged with and into Bank SNB, with Bank SNB the surviving bank, and all systems, products, and services were successfully integrated to our platform.

The following is a reconciliation of cash received from the acquisition of Bancshares as of the acquisition date:

(Dollars in thousands)
Fair value of assets acquired	$	301,499
Liabilities assumed		(259,718)
Net assets acquired		41,781
Stock issued as consideration		(21,366)
Cash acquired		(32,699)
Cash received in business combination, net of cash paid	$	(12,284)

The acquisition of the net assets of Bancshares constitutes a business combination as defined by the FASB ASC Topic 805, Business Combinations. Accordingly, the assets acquired and liabilities assumedare presented at their fair values as required. Fair values were determined based on the requirements of FASB ASCTopic 820, Fair Value Measurements. In many cases, the determination of these fair values required management tomake estimates about discount rates, future expected cash flows, market conditions and other future events that arehighly subjective in nature and subject to change. The following schedule is a breakdown of the assets acquired andliabilities assumed as of the acquisition date:

	First Commercial Bancshares, Inc.
		Acquired from Bancshares		Fair Value Adjustments		Fair Value
(Dollars in thousands)
Assets, Acquired
Cash and due from banks	$	5,874	$	-	$	5,874
Interest-bearing deposits with other banks		17,196		-		17,196
Federal funds sold		9,629		-		9,629
Cash and cash equivalents		32,699		-		32,699
Investment securities		34,762		(184)		34,578
Loans		210,223		(7,790)		202,433
Allowance for loan losses		4,298		(4,298)		-
Total loans receivable		205,925		(3,492)		202,433
Bank premises and equipment, net		4,241		1,341		5,582
Cash value of life insurance		7,153		-		7,153
Accrued interest receivable		790		-		790
Deferred tax asset		1,650		15		1,665
Core deposit intangible		55		2,646		2,701
Other assets		1,644		-		1,644
Total assets acquired	$	288,919	$	326	$	289,245
Liabilities, Assumed
Deposits
Demand and non-interest bearing	$	101,464	$	-	$	101,464
Savings and interest-bearing transaction accounts		59,356		-		59,356
Time deposits		84,410		-		84,410
Total Deposits		245,230		-		245,230
Other borrowings		7,180		-		7,180
Accrued interest payable and other liabilities		1,833		320		2,153
Subordinated debentures		5,155		-		5,155
Total liabilities assumed		259,398		320		259,718
Equity
Equity		31,158		(31,158)		-
Total equity assumed		31,158		(31,158)		-
Total liabilities and equity assumed	$	290,556	$	(30,838)	$	259,718
Net assets acquired						29,527
Purchase price						41,781
Goodwill					$	12,254

The following is a description of the methods used to determine the fair values of significant assets and liabilities presented above:

Cash and due from banks, interest-bearing deposits with other banks and federal funds sold– The carrying amount ofthese assets is a reasonable estimate of fair value based on the short-term nature of these assets.

Investment securities – Investment securities were acquired from Bancshares with a $0.2 million adjustment to marketvalue based upon quoted market prices or other observable inputs.

Loans – Fair values for loans were based on a discounted cash flow methodology that considered factors including the type of loan and related collateral, classification status, fixed or variable interest rate, term of loan and whether or not the loan was amortizing, and current discount rates. The discount rates used for loans are based on current market rates for new originations of comparable loans and include adjustments for liquidity concerns.

We evaluated $200.0million of the loans purchased in conjunction with the acquisition in accordance with the provisions of FASB ASC Topic 310-20, Nonrefundable Fees and Other Costs, and those loans were recorded with a $4.5million discount. As a result, the fair value discount on these loans is being accreted into interest income over theweighted average life of the loans using a constant yield method. The remaining $7.8 million of loans evaluated wereconsidered purchased credit impaired loans within the provisions of FASB ASC Topic 310-30, Loans and DebtSecurities Acquired with Deteriorated Credit Quality, and were recorded with a $3.3 million discount. These purchased  credit impaired loans will recognize interest income through accretion of the difference between the carrying amount ofthe loans and the expected cash flows.

Bank premises and equipment – Bank buildings and landwere acquired with an adjustment to fair value. Other bank premises and equipment were acquired at the carrying amount of the assets.

Cash value of life insurance – Cash value of life insurance was acquired at market value.

Accrued interest receivable – Accrued interest receivable was acquired at market value.

Deferred tax asset – The current and deferred income tax assets and liabilities are recorded to reflect the differencesin the carrying values of the acquired assets and assumed liabilities for financial reporting purposes and the cost basisfor federal income tax purposes, at ourestimated federal income tax rate of 36.00%.

Goodwill – The consideration paid as a result of the acquisition exceeded the fair value of the net assets acquired;therefore, the Company recorded $12.3 million of goodwill. Goodwill established prior to the acquisition was written off.

Core deposit intangible – This intangible asset represents the value of the relationships that Bancshares had with its deposit customers. The fair value of this intangible asset was estimated based on a discounted cash flow methodologythat gave appropriate consideration to expected customer attrition rates, cost of the deposit base, and the netmaintenance cost attributable to customer deposits. The Company recorded $2.7 million of gross core deposit intangible.

Other assets – Other assets were acquired at carrying value, which approximates market value.

Deposits – The fair values used for the demand and savings deposits that comprise the transaction accounts acquired, by definition equal the amount payable on demand at the acquisition date. No fair value adjustment wasapplied for time deposits because the weighted average interest rate of Bancshare’s certificates of deposits were at themarket rates for similar funding at the time of acquisition

Other borrowings – The fair value of other borrowings is estimated based on borrowing rates currentlyavailable to us for borrowings with similar terms and maturities.

Accrued interest payable and other liabilities – The fair value used represents the adjustment of certain estimated liabilities from Bancshares.

Subordinated debentures – Subordinated debentures were acquired at carrying value, which approximates market value.

The following unaudited pro forma condensed financial information presents our results of operations, including the effects of the purchase accounting adjustments and acquisition expenses, had the acquisition taken place at the beginning of the period presented:

		For the year ended December 31,
		2015(1)		2014
(Dollars in thousands except per share data)
Interest income	$	84,399	$	84,710
Interest expense		8,049		8,236
Net interest income		76,350		76,474
Provision for loan losses		(3,080)		(6,398)
Non-interest income		16,292		21,439
Non-interest expense (2)		68,860		67,779
Income before taxes		26,862		36,532
Income taxes		9,601		13,646
Net income		17,261		22,886
Earnings allocated to participating securities		(258)		(253)
Numerator for earnings per common share	$	17,003	$	22,633
Earnings per share:
Basic	$	0.90	$	1.10
Diluted		0.89		1.09
Basic weighted average shares outstanding		18,975,450		20,631,471
Diluted weighted average shares outstanding		19,129,533		20,774,348

(1)  Subsequent to the Bancshares Merger date, activity related to Bancshares contributed pre-tax revenues of $2.9 million and incurred pre-tax expenses of $1.2 million, resulting in $1.1 million total contribution to our net income. We incurred pre-tax non-recurring expenses totaling $1.9 million, including: $0.5 million in personnel related expenses, $0.4 million in data processing expenses, $0.5 million in legal, accounting and investment banker expenses, and $0.5 million in marketing and other expenses.

(2) The 2015 pro forma non-interest expense is adjusted to exclude $2.5 million of pre-tax non-recurring expenses incurred by Bancshares prior to the Bancshares Merger date attributed to the following: $0.7 million in employee related expenses, $0.4 million in legal expenses, and $1.4 million to discount a loan pursuant to a provision of the Bancshares Merger Agreement. 

Acquired Loans.  Changes in the carrying amounts and accretable yields for all ASC 310.30 loans were as follows for the year ended December 31, 2016 and 2015. 

	For the year ended December 31,
	2016				2015
			Carrying				Carrying
	Accretable		amount		Accretable		amount
(Dollars in thousands)	Yield		of loans		Yield		of loans
Balance at beginning of period	$	807	$	7,914	$	540	$	4,971
Acquisition		-		-		(11)		4,396
Payments received		-		(2,964)		1		(1,814)
Transfers to other real estate / repossessed assets		-		-		541		-
Net charge-offs		(11)		(318)		-		(81)
Net reclassifications to / from nonaccretable amount		-		-		240		-
Accretion		(166)		-		(504)		442
Balance at end of period	$	630	$	4,632	$	807	$	7,914

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Disposals

12 Months Ended

Dec. 31, 2016

Disposals [Abstract]

Disposals

Note 3:  Disposals

During the second quarter of 2014, we sold a banking center in Overland Park, Kansas, to Fidelity Bank in Wichita, Kansas, and banking centers in Anthony and Harper, Kansas, to BancCentral, National Association, in Alva, Oklahoma. The sold banking centers had combined total deposits of $130.6 million and loans of $27.9 million.

These transactions resulted in a net gain of $4.4 million, which is included under noninterest income in the gain on sale of bank branches, net  as a separate line item on the Consolidated Statements of Operations. 

During 2016, we closed a banking center in Colorado Springs, Colorado, a banking center in Fort Worth, Texas, and a banking center in Frisco, Texas. We incurred $0.4 million in restructuring charges due to the banking center closures.

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Investment Securities

12 Months Ended

Dec. 31, 2016

Investment Securities [Abstract]

Investment Securities

Note 4:  Investment Securities

A summary of the amortized cost and fair values of investment securities follows:

	Amortized		Gross Unrealized				Fair
(Dollars in thousands)	Cost		Gains		Losses		Value
At December 31, 2016
Held to Maturity:
Obligations of state and political subdivisions	$	10,443	$	242	$	(8)	$	10,677
Total	$	10,443	$	242	$	(8)	$	10,677
Available for Sale:
Federal agency securities	$	69,691	$	201	$	(198)	$	69,694
Obligations of state and political subdivisions		46,105		461		(191)		46,375
Residential mortgage-backed securities		282,035		573		(1,966)		280,642
Asset-backed securities		9,265		-		(88)		9,177
Corporate debt		20,017		385		(72)		20,330
Total	$	427,113	$	1,620	$	(2,515)	$	426,218
At December 31, 2015
Held to Maturity:
Obligations of state and political subdivisions	$	11,797	$	488	$	(3)	$	12,282
Total	$	11,797	$	488	$	(3)	$	12,282
Available for Sale:
Federal agency securities	$	78,363	$	220	$	(373)	$	78,210
Obligations of state and political subdivisions		47,079		620		(134)		47,565
Residential mortgage-backed securities		240,804		936		(1,852)		239,888
Asset-backed securities		9,639		-		(224)		9,415
Corporate debt		25,251		148		(146)		25,253
Total	$	401,136	$	1,924	$	(2,729)	$	400,331

Residential mortgage-backed securities consist of agency securities underwritten and guaranteed by Government National Mortgage Association, Federal Home Loan Mortgage Corporation, and Federal National Mortgage Association. 

Securities with limited marketability, such as FRB stock, FHLB stock, and certain other investments, are carried at cost and included in other assets on our Consolidated Statements of Financial Condition. Total investments carried at cost were $14.6 million and  $10.4 million at December 31, 2016 and 2015, respectively. There are no identified events or changes in circumstances that may have a significant adverse effect on the investments carried at cost.  

A comparison of the amortized cost and approximate fair value of our investment securities by maturity date at December 31, 2016 follows:  

	Available for Sale				Held to Maturity
	Amortized		Fair		Amortized		Fair
(Dollars in thousands)	Cost		Value		Cost		Value
One year or less	$	7,702	$	7,747	$	-	$	-
More than one year through five years		309,028		308,505		9,298		9,535
More than five years through ten years		76,505		75,976		1,145		1,142
More than ten years		33,878		33,990		-		-
Total	$	427,113	$	426,218	$	10,443	$	10,677

The foregoing analysis assumes that our residential mortgage-backed securities mature during the period in which they are estimated to prepay. No other prepayment or repricing assumptions have been applied to our investment securities for this analysis. 

Gain or loss on sale of investments is based upon the specific identification method. Sales of securities available for sale are as follows: 

(Dollars in thousands)		2016		2015		2014
Proceeds from sales	$	43,593	$	162	$	2,545
Gross realized gains		348		162		1,120
Gross realized losses		(54)		-		-

The following table shows securities with gross unrealized losses and their fair values by the length of time that the individual securities had been in a continuous unrealized loss position at December 31, 2016 and 2015. Securities whose market values exceed cost are excluded from this table. 

				Continuous Unrealized
		Amortized cost of		Loss Existing for:				Fair value of
	Number of	securities with		Less Than		More Than		securities with
(Dollars in thousands)	Securities	unrealized losses		12 Months		12 Months		unrealized losses
At December 31, 2016
Held to Maturity:
Obligations of state and political subdivisions	7	$	1,987	$	(8)	$	-	$	1,979
	7	$	1,987	$	(8)	$	-	$	1,979
Available for Sale:
Federal agency securities	13	$	34,734	$	(111)	$	(87)	$	34,536
Obligations of state and political subdivisions	36		18,283		(145)		(46)		18,092
Residential mortgage-backed securities	89		225,986		(1,618)		(348)		224,020
Asset-backed securities	3		9,265		-		(88)		9,177
Other Securities	2		5,005		-		(72)		4,933
Total	143	$	293,273	$	(1,874)	$	(641)	$	290,758
At December 31, 2015
Held to Maturity:
Obligations of state and political subdivisions	1	$	1,677	$	-	$	(3)	$	1,674
	1	$	1,677	$	-	$	(3)	$	1,674
Available for Sale:
Federal agency securities	14	$	42,438	$	(138)	$	(235)	$	42,065
Obligations of state and political subdivisions	14		11,765		(57)		(77)		11,631
Residential mortgage-backed securities	87		175,043		(1,247)		(605)		173,191
Asset-backed securities	3		9,639		(115)		(109)		9,415
Other Securities	6		14,987		(75)		(71)		14,841
Total	124	$	253,872	$	(1,632)	$	(1,097)	$	251,143

We evaluate all securities on an individual basis for other-than-temporary impairment on at least a quarterly basis. Consideration is given to the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability of us to retain our investment in the issuer for a period of time sufficient to allow for an anticipated recovery in fair value. 

Management has the ability and intent to hold the securities classified as held to maturity in the table above until they mature, at which time we expect to receive full value for the securities. Furthermore, as of December 31, 2016, management does not have the intent to sell any of the securities classified as available for sale in the table above and believes that we will most likely not have to sell any such securities before a recovery of cost. The declines in fair value were attributable to increases in market interest rates over the yields available at the time the underlying securities were purchased or increases in spreads over market interest rates. Management does not believe any of the securities are impaired due to credit quality. Accordingly, as of December 31, 2016, management believes the impairment of these investments is not deemed to be other-than-temporary. 

As required by law, available for sale investment securities are pledged to secure public and trust deposits, sweep agreements, borrowings from the FHLB, and for other applicable purposes. Securities with an amortized cost of $199.0 million and $174.0 million were pledged to meet such requirements at December 31, 2016 and 2015, respectively. Any amount over-pledged can be released at any time.

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Loans And Allowance For Loan Losses

12 Months Ended

Dec. 31, 2016

Loans And Allowance For Loan Losses [Abstract]

Loans And Allowance For Loan Losses

Note 5:  Loans and Allowance for Loan Losses

We extend commercial and consumer credit primarily to customers in the states of Oklahoma, Texas, Kansas, and Colorado.  Our commercial lending operations are concentrated in Oklahoma City, Dallas, Tulsa, and other metropolitan markets in Texas, Kansas, Oklahoma, and Colorado. As a result, the collectability of our loan portfolio can be affected by changes in the economic conditions in those states and markets. Please see “Note 20:  Operating Segments” for more detail regarding loans by market. At December 31, 2016 and 2015, substantially all of our loans were collateralized with real estate, inventory, accounts receivable, and/or other assets or were guaranteed by agencies of the United States government. 

Our loan classifications were as follows: 

(Dollars in thousands)	At December 31, 2016		At December 31, 2015
Real estate mortgage:
Commercial	$	882,071	$	938,462
One-to-four family residential		199,123		161,958
Real estate construction:
Commercial		199,113		129,070
One-to-four family residential		20,946		21,337
Commercial		556,248		507,173
Installment and consumer		19,631		21,429
Total loans, including held for sale		1,877,132		1,779,429
Less allowance for loan losses		(27,546)		(26,106)
Total loans, net	$	1,849,586	$	1,753,323

Concentrations of Credit. At December 31, 2016,  $608.6 million, or 32%, and $423.8 million, or 23%, of our loans consisted of loans to individuals and businesses in the real estate and healthcare industries, respectively.  We do not have any other concentrations of loans to individuals or businesses involved in a single industry totaling 10% or more of total loans.

Loans Held for Sale.  We had loans which were held for sale of $4.4 million and $7.5million at December 31, 2016 and 2015, respectively. The loans currently classified as held for sale, primarily residential mortgage loans, are carried at the lower of cost or market value.A substantial portion of the one-to-four family residential loans and loan servicing rights, if not retained, are primarily sold to one investor. These mortgage loans are generally sold within a one-month period from loan closing at amounts determined by the investor commitment based upon the pricing of the loan. 

Loan Servicing.  We earn fees for servicing real estate mortgages and other loans owned by others. The fees are generally calculated on the outstanding principal balance of the loans serviced and are recorded as noninterest income when earned. The unpaid principal balance of real estate mortgage loans serviced for others totaled $460.1 million and $432.3 million at December 31, 2016 and 2015, respectively. Loan servicing rights are capitalized based on estimated fair value at the point of origination. The servicing rights are amortized over the period of estimated net servicing income.   

Nonperforming / Past Due Loans. The following table shows the recorded investment in loans on nonaccrual status. 

	At December 31,
(Dollars in thousands)	2016		2015
Real estate mortgage:
Commercial	$	6,471	$	3,543
One-to-four family residential		2,766		1,729
Real estate construction:
Commercial		522		562
One-to-four family residential		448		448
Commercial		5,949		13,491
Other consumer		111		85
Total nonaccrual loans	$	16,267	$	19,858

If interest on nonaccrual loans had been accrued, the interest income as reported in the accompanying Consolidated Statements of Operations would have increased by approximately $1.0 million, $0.8 million, and $0.7 million, for 2016, 2015, and 2014, respectively.

Net cumulative charge-offs against nonaccrual loans at December 31, 2016 and 2015were $3.3 million and  $6.1 million, respectively.

The following table shows the delinquency status of past due loans at the end of the respective reporting period.

			90 days and								Recorded loans
	30-89 days		greater		Total past				Total		> 90 days and
(Dollars in thousands)	past due		past due		due		Current		loans		accruing
At December 31, 2016
Real estate mortgage:
Commercial	$	24	$	6,472	$	6,496	$	875,575	$	882,071	$	-
One-to-four family residential		631		2,903		3,534		195,589		199,123		138
Real estate construction:
Commercial		-		522		522		198,591		199,113		-
One-to-four family residential		-		448		448		20,498		20,946		-
Commercial		2,530		6,142		8,672		547,576		556,248		193
Other		359		123		482		19,149		19,631		12
Total	$	3,544	$	16,610	$	20,154	$	1,856,978	$	1,877,132	$	343
At December 31, 2015
Real estate mortgage:
Commercial	$	272	$	3,992	$	4,264	$	934,198	$	938,462	$	449
One-to-four family residential		549		1,777		2,326		159,632		161,958		48
Real estate construction:
Commercial		-		493		493		128,577		129,070		-
One-to-four family residential		-		517		517		20,820		21,337		-
Commercial		278		13,491		13,769		493,404		507,173		-
Other		65		88		153		21,276		21,429		3
Total	$	1,164	$	20,358	$	21,522	$	1,757,907	$	1,779,429	$	500

Impaired Loans. The following table presents loans individually evaluated for impairment by class of loans at the end of the respective reporting period.

	With No Specific Allowance				With A Specific Allowance
			Unpaid				Unpaid
	Recorded		Principal		Recorded		Principal		Related
(Dollars in thousands)	Investment		Balance		Investment		Balance		Allowance
At December 31, 2016
Commercial real estate	$	1,536	$	3,057	$	6,053	$	6,529	$	2,219
One-to-four family residential		1,188		1,535		1,593		1,698		63
Real estate construction		762		926		207		245		40
Commercial		1,032		2,861		4,963		7,480		1,346
Other		111		115		-		-		-
Total	$	4,629	$	8,494	$	12,816	$	15,952	$	3,668
At December 31, 2015
Commercial real estate	$	12,166	$	15,747	$	10,940	$	10,940	$	1,575
One-to-four family residential		1,688		2,195		185		186		11
Real estate construction		1,078		1,327		-		-		-
Commercial		4,095		5,430		9,844		15,968		2,526
Other		85		94		-		-		-
Total	$	19,112	$	24,793	$	20,969	$	27,094	$	4,112

The following table presents the average recorded investment and interest income recognized on impaired loans for the year ended December 31, 2016, 2015, and 2014.

	As of and for the year ended December 31,
	2016				2015				2014
	Average				Average				Average
	Recorded		Interest		Recorded		Interest		Recorded		Interest
(Dollars in thousands)	Investment		Income		Investment		Income		Investment		Income
Commercial real estate	$	7,394	$	750	$	25,044	$	970	$	30,257	$	968
One-to-four family residential		3,448		15		2,323		1		2,764		1
Real estate construction		1,050		14		997		-		222		-
Commercial		6,905		96		8,527		215		7,718		68
Other		52		3		51		-		16		-
Total	$	18,848	$	878	$	36,942	$	1,186	$	40,977	$	1,037

Included in interest income recognized on impaired loans are  $0.9 million, $1.2 million, and $1.0 million,  for December 31, 2016, 2015, and 2014, respectively.

Troubled Debt Restructurings. The loan portfolio also includes certain loans that have been modified in a troubled debt restructuring, where economic concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from loss mitigation activities and can include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance, or other actions. Troubled debt restructurings are classified as impaired at the time of restructuring and classified as nonperforming, potential problem, or performing restructured, as applicable. Loans modified in troubled debt restructurings may be returned to performing status after considering the borrowers’ sustained repayment for a reasonable period of at least six months. 

When we modify loans in a troubled debt restructuring, an evaluation of any possible impairment is performed similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, or use of the current fair value of the collateral, less selling costs for collateral dependent loans. If it is determined that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs, and unamortized premium or discount), an impairment is recognized through an allowance estimate or a charge-off to the allowance. In periods subsequent to modification, all loans modified in troubled debt restructurings are evaluated, including those that have payment defaults, for possible impairment. 

Troubled debt restructured loans outstanding as of December 31, 2016 and 2015 are as follows: 

	At December 31, 2016				At December 31, 2015
(Dollars in thousands)	Accruing		Nonaccrual		Accruing		Nonaccrual
Commercial real estate	$	1,118	$	475	$	19,563	$	448
One-to-four family residential		15		46		13		48
Commercial		45		3,323		659		5,796
Total	$	1,178	$	3,844	$	20,235	$	6,292

At December 31, 2016 and 2015,  we had no significant commitments to lend additional funds to debtors whose loan terms have been modified in troubled debt restructuring.

Loans modified as troubled debt restructurings that occurred during the year ended December 31, 2016 and 2015 are shown in the following tables:  

	For the year ended December 31,
	2016				2015
	Number of		Recorded		Number of		Recorded
(Dollars in thousands)	Modifications		Investment		Modifications		Investment
Commercial real estate		1	$	164		-	$	-
Commercial		1		24		1		5,511
Total		2	$	188		1	$	5,511

The modifications of loans identified as troubled debt restructurings primarily related to payment extensions and/or reductions in the interest rate. The financial impact of troubled debt restructurings is not significant.   

As of December 31, 2016 and 2015, there were no loans modified as a troubled debt restructuring which subsequently defaulted. Default, for this purpose, is deemed to occur when a loan is 90 days or more past due or transferred to nonaccrual and is within twelve months of restructuring.   

Credit Quality Indicators.  To assess the credit quality of loans, we categorize loans into risk categories based on relevant information about the ability of the borrowers to service their debts such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. This analysis is performed on a quarterly basis. We use the following definitions for risk ratings:   

Special mention – Loans classified as special mention have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for these loans or of the institution’s credit position at some future date. 

Substandard – Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligors or of the collateral pledged, if any. Loans so classified have one or more well-defined weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected. These loans are considered potential problem or nonperforming loans depending on the accrual status of the loans. 

Doubtful – Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristics that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. These loans are considered nonperforming. 

Loans not meeting the criteria above that are analyzed as part of the above described process are considered to be pass rated loans. As of December 31, 2016 and 2015, based on the most recent analysis performed as of those dates, the risk category of loans by class is as follows: 

	Commercial		1-4 Family		Real Estate
(Dollars in thousands)	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2016
Grade:
Pass	$	857,290	$	192,395	$	210,780	$	498,039	$	19,518	$	1,778,022
Special Mention		4,479		1,983		7,720		24,639		-		38,821
Substandard		20,302		4,745		1,559		33,175		113		59,894
Doubtful		-		-		-		395		-		395
Total	$	882,071	$	199,123	$	220,059	$	556,248	$	19,631	$	1,877,132
At December 31, 2015
Grade:
Pass	$	902,034	$	157,912	$	148,811	$	480,928	$	21,284	$	1,710,969
Special Mention		5,916		29		586		2,941		50		9,522
Substandard		30,512		4,017		1,010		18,848		95		54,482
Doubtful		-		-		-		4,456		-		4,456
Total	$	938,462	$	161,958	$	150,407	$	507,173	$	21,429	$	1,779,429

Allowance for Loan Losses. The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment evaluation method as of December 31, 2016, 2015 and 2014.  

	Commercial		1-4 Family		Real Estate
(Dollars in thousands)	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2016
Balance at beginning of period	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Loans charged-off		(193)		(134)		-		(6,148)		(522)		(6,997)
Recoveries		400		77		-		3,079		112		3,668
Provision (credit) for loan losses		(416)		520		969		3,162		534		4,769
Balance at end of period	$	12,507	$	1,163	$	3,502	$	10,058	$	316	$	27,546
Allowance for loan losses ending balance:
Individually evaluated for impairment	$	2,219	$	63	$	-	$	1,346	$	-	$	3,628
Collectively evaluated for impairment		10,288		1,100		3,462		8,712		316		23,878
Acquired with deteriorated credit quality		-		-		40		-		-		40
Total ending allowance balance	$	12,507	$	1,163	$	3,502	$	10,058	$	316	$	27,546
Loans receivable ending balance:
Individually evaluated for impairment	$	6,606	$	1,766	$	390	$	5,357	$	-	$	14,119
Collectively evaluated for impairment		872,997		196,123		219,015		550,615		19,631		1,858,381
Acquired with deteriorated credit quality		2,468		1,234		654		276		-		4,632
Total ending loans balance	$	882,071	$	199,123	$	220,059	$	556,248	$	19,631	$	1,877,132

	Commercial		1-4 Family		Real Estate
	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2015
Balance at beginning of period	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Loans charged-off		(489)		(20)		(21)		(628)		(193)		(1,351)
Recoveries		282		558		47		1,479		205		2,571
Provision (credit) for loan losses		(755)		(550)		(1,652)		(500)		(109)		(3,566)
Balance at end of period	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Allowance for loan losses ending balances:
Individually evaluated for impairment	$	1,575	$	11	$	-	$	2,526	$	-	$	4,112
Collectively evaluated for impairment		11,141		689		2,533		7,439		192		21,994
Acquired with deteriorated credit quality		-		-		-		-		-		-
Total ending allowance balance	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Loans receivable ending balance:
Individually evaluated for impairment	$	20,332	$	695	$	391	$	13,396	$	47	$	34,861
Collectively evaluated for impairment		913,242		159,672		149,344		493,026		21,370		1,736,654
Acquired with deteriorated credit quality		4,888		1,591		672		751		12		7,914
Total ending loans balance	$	938,462	$	161,958	$	150,407	$	507,173	$	21,429	$	1,779,429

	Commercial		1-4 Family		Real Estate
	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2014
Balance at beginning of period	$	18,854	$	850	$	5,523	$	10,985	$	451	$	36,663
Loans charged-off		(1,400)		(289)		(655)		(4,014)		(558)		(6,916)
Recoveries		3,733		213		-		1,119		264		5,329
Provision (credit) for loan losses		(7,509)		(62)		(709)		1,524		132		(6,624)
Balance at end of period	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Allowance for loan losses ending balances:
Individually evaluated for impairment	$	2,047	$	-	$	-	$	1,822	$	-	$	3,869
Collectively evaluated for impairment		11,631		712		4,159		7,792		289		24,583
Acquired with deteriorated credit quality		-		-		-		-		-		-
Total ending allowance balance	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Loans receivable ending balance:
Individually evaluated for impairment	$	23,907	$	538	$	104	$	13,560	$	2	$	38,111
Collectively evaluated for impairment		725,635		75,598		196,905		336,818		21,953		1,356,909
Acquired with deteriorated credit quality		3,429		1,395		114		32		1		4,971
Total ending loans balance	$	752,971	$	77,531	$	197,123	$	350,410	$	21,956	$	1,399,991

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Premises And Equipment

12 Months Ended

Dec. 31, 2016

Premises And Equipment [Abstract]

Premises And Equipment

Note 6:  Premises and Equipment

Year-end premises and equipment were as follows:

	At December 31,
(Dollars in thousands)	2016		2015
Land	$	6,630	$	6,630
Buildings and improvements		25,861		25,219
Furniture, fixtures, and equipment		32,409		30,813
Construction/remodeling in progress		38		965
		64,938		63,627
Accumulated depreciation and amortization		(42,130)		(39,808)
Total premises and equipment, net	$	22,808	$	23,819

Depreciation of premises and equipment totaled$2.8 million in 2016,  $2.5 million in 2015, and $2.8million in 2014.

We lease certain equipment and premises for our operations. Future minimum annual rental payments required under operating leases, net of sublease agreements, that have initial or remaining lease terms in excess of one year as of December 31, 2016 were as follows: 

(Dollars in thousands)
2017	$	2,723
2018		2,277
2019		2,091
2020		2,016
2021		1,333
Thereafter		2,822
Total	$	13,262

The total rental expense was $3.6 million, $2.9 million, and $2.4 million in 2016, 2015, and 2014, respectively.

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Goodwill And Other Intangible Assets

12 Months Ended

Dec. 31, 2016

Goodwill And Other Intangible Assets [Abstract]

Goodwil And Other Intangible Assets

Note 7:  Goodwill and Other Intangible Assets

We have recorded goodwill and other identifiable intangible assets associated with purchase business combinations. Goodwill is not amortized, but is periodically evaluated for impairment. We perform an annual goodwill impairment test each year and assess qualitative factors on a quarterly basis that would indicate events or circumstances that an impairment might have taken place.

At December 31, 2016 and 2015, goodwill totaled $13.5 million, of which  $12.5 million of goodwill is reported in the Oklahoma Banking segment and $1.0 million is reported in the Texas Banking segment. In 2015, $12.3 million of goodwill was recorded as a result of the acquisition of Bancshares. Further information regarding operating segments can be found in “Note 20 Operating Segments”.

Based on our annual goodwill impairment test through December 31, 2016, management does not believe any of its goodwill is impaired as of December 31, 2016.  We did not recognize an impairment during the years ended December 31, 2016,  2015 and 2014.

The following table presents the gross carrying amount of other intangible assets and accumulated amortization.

	At December 31,
(Dollars in thousands)	2016		2015
Core deposit premiums	$	6,119	$	6,119
Less accumulated amortization		(3,820)		(3,225)
Core deposit premiums, net		2,299		2,894
Loan servicing rights		14,710		13,635
Less accumulated amortization		(11,219)		(9,914)
Loan servicing rights, net		3,491		3,721
Other intangible assets, net	$	5,790	$	6,615

Core deposit intangibles are amortized using an economic life method based on deposit attrition. As a result, amortization will decline over time with most of the amortization occurring during the initial years. The weighted average amortization period for core deposit intangibles is approximately 10 years. Amortization expense related to core deposit intangibles totaled $0.6 million in 2016, $0.3  million in 2015, and $0.4 million in 2014.In 2015, $2.7 million of core deposit intangibles was recorded as a result of the acquisition of Bancshares.  As of December 31, 2016, economic conditions did not indicate that impairment existed for the core deposit intangibles and therefore no impairment evaluation was performed. We did not recognize any impairment during the years ended December 31, 2016,  2015, and 2014.

During 2016, 2015, and 2014,  we had recorded loan servicing rights amortization expense of $0.7 million, $0.6 million, and $0.4 million, respectively. As of December 31, 2016, mortgage loan servicing rights had a fair value of $4.2 million, which exceeded the book value of $3.5 million. Because the fair value exceeded the book value, there was no impairment charge at December 31, 2016. During the first three quarters of 2016, the mortgage loan servicing rights were written down to their fair values, resulting in total impairment charges of $0.6 million, which was included in noninterest income. As of December 31, 2015, mortgage loan servicing rights were written down to their fair values, resulting in an impairment charge of$0.1 million, which was included in noninterest income. We did not recognize any impairment during the year ended December 31, 2014.

The estimated aggregate future amortization expense for other intangible assets remaining as of December 31, 2016 is as follows:

(Dollars in thousands)	Core Deposit Premiums		Loan Servicing Rights		Total
2017	$	451	$	654	$	1,105
2018		391		571		962
2019		386		478		864
2020		386		396		782
2021		386		323		709
Thereafter		299		1,069		1,368
	$	2,299	$	3,491	$	5,790

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Fair Value Measurements

12 Months Ended

Dec. 31, 2016

Fair Value Measurements [Abstract]

Fair Value Measurements

Note 8:  Fair Value Measurements

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. In estimating fair value, we utilize valuation techniques that are consistent with the market approach, the income approach, and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability.   

ASC 820, Fair Value Measurements, establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: 

Level 1Quoted prices in active markets for identical instruments. 

Level 2Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.   

Level 3Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.   

The estimated fair value amounts have been determined by us using available market information and appropriate valuation methodologies. However, considerable judgment is required to interpret market data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amount we could realize in a current market exchange. The use of different market assumptions and/or estimation methodologies could have a material effect on the estimated fair value amounts. There were no significant changes in valuation methods used to estimate fair value during the year ended December 31, 2016. 

A description of the valuation methodologies used for instruments measured at fair value on a recurring basis is as follows: 

Available for sale securities – The fair value of U.S. Government and federal agency securities, equity securities, and residential mortgage-backed securities is estimated based on quoted market prices or dealer quotes. The fair value of other investments such as obligations of state and political subdivisions is estimated based on quoted market prices, when available.  We obtain fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information, and bond’s terms and conditions, among other things. We review the prices supplied by the independent pricing service, as well as their underlying pricing methodologies, for reasonableness and to ensure such prices are aligned with traditional pricing matrices. 

Derivative instruments – We utilize an interest rate swap agreement to convert one of our variable-rate subordinated debentures to a fixed rate. This has been designated as a cash flow hedge. During 2014, we began offering an interest rate swap program that permits qualified customers to manage interest rate risk on variable rate loans with Bank SNB. Derivative contracts are executed between our customers and Bank SNB. Offsetting contracts are executed by Bank SNB and approved counterparties. The counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to us. The fair value of the interest rate swap agreements are obtained from dealer quotes.

The following table summarizes financial assets measured at fair value on a recurring basis as of December 31, 2016 and 2015. 

			Fair Value Measurement at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
(Dollars in thousands)	Total		(Level 1)		(Level 2)		(Level 3)
At December 31, 2016
Available for sale securities:
Federal agency securities		69,694		-		69,694		-
Obligations of state and political subdivisions		46,375		-		46,375		-
Residential mortgage-backed securities		280,642		-		280,642		-
Asset-backed securities		9,177		-		9,177		-
Corporate debt		20,330		213		20,117		-
Derivative asset		1,235				1,235
Derivative liability		(1,890)		-		(1,890)		-
Total	$	425,563	$	213	$	425,350	$	-
At December 31, 2015
Available for sale securities:
Federal agency securities		78,211		-		78,211		-
Obligations of state and political subdivisions		47,564		-		47,564		-
Residential mortgage-backed securities		239,888		-		239,888		-
Asset-backed securities		9,415		-		9,415		-
Corporate debt		25,253		137		25,116		-
Derivative asset		1,793				1,793		-
Derivative liability		(3,163)		-		(3,163)		-
Total	$	398,961	$	137	$	398,824	$	-

Certain financial assets are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). These assets are recorded at the lower of cost or fair value. Valuation methodologies for assets measured on a nonrecurring basis are as follows: 

Impaired loans – Certain impaired loans are reported at the fair value of the underlying collateral if repayment is expected solely from collateral. Collateral values are estimated using Level 3 inputs based on third-party appraisals. Certain other impaired loans are remeasured and reported through a specific valuation allowance allocation of the allowance for loan losses based upon the net present value of cash flows.

Loans held for sale – Real estate mortgage loans held for sale are carried at the lower of cost or market, which is determined on an individual loan basis. The fair value of loans held for sale is based on existing investor commitments.

Other real estate – Other real estate fair value is based on third-party appraisals for properties less the estimated costs to sell the asset.   

Goodwill – Fair value of goodwill is based on the fair value of each of our reporting units to which goodwill is allocated compared with their respective carrying value. There has been no impairment during 2016 or 2015; therefore, no fair value adjustment was recorded through earnings. 

Core deposit premiums  –There has been no impairment during 2016 or 2015; therefore, no fair value adjustment was recorded through earnings. 

Mortgage loan servicing rights – Mortgage loan servicing rights are carried at the lower of cost or market. There is no active trading market for loan servicing rights. The fair value of loan servicing rights is estimated by calculating the present value of net servicing revenue over the anticipated life of each loan. A cash flow model is used to determine fair value. Key assumptions and estimates, including projected prepayment speeds and assumed servicing costs, earnings on escrow deposits, ancillary income, and discount rates, used by this model are based on current market sources. A separate third party model is used to estimate prepayment speeds based on interest rates, housing turnover rates, estimated loan curtailment, anticipated defaults, and other relevant factors. The prepayment model is updated for changes in market conditions.

Assets that are measured at fair value on a nonrecurring basis as of December 31, 2016 and 2015 are summarized below.   

			Fair Value Measurements Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
(Dollars in thousands)	Total		(Level 1)		(Level 2)		(Level 3)
At December 31, 2016
Impaired loans at fair value :
Commercial real estate	$	6,053	$	-	$		$	6,053
One-to-four family residential		1,593		-		-		1,593
Real estate construction		207		-		-		207
Commercial		5,357		-				5,357
Loans held for sale:
One-to-four family residential		4,386		-		4,386		-
Total	$	17,596	$	-	$	4,386	$	13,210
At December 31, 2015
Impaired loans at fair value :
Commercial real estate	$	11,182	$	-	$		$	11,182
One-to-four family residential		185		-		-		185
Real estate construction		390		-		-		390
Commercial		9,845		-				9,845
Loans held for sale:
One-to-four family residential		7,453		-		7,453		-
Other real estate		2,274		-		-		2,274
Mortgage loan servicing rights		3,721		-		3,721		-
Total	$	35,050	$	-	$	11,174	$	23,876

Impaired loans measured at fair value with a carrying amount of $19.7 million were written down to a fair value of $13.2 million, resulting in a life-to-date impairment of $6.5 million. As of December 31, 2015, impaired loans measured at fair value with a carrying amount of $25.9 million were written down to the fair value of $21.6 million at December 31, 2015, resulting in a life-to-date impairment charge of $4.3 million.

No impairment was recognized for other real estate during the period ended December 31, 2016.As of December 31, 2015, other real estate assets were written down to their fair values, resulting in an impairment charge of approximately $0.1 million, which was included in noninterest expense for the year ended December 31, 2015. 

As of December 31, 2016, mortgage loan servicing rights had a fair value of $4.2 million, which exceeded the book value of $3.5 million. Because the fair value exceeded the book value, there was no impairment charge at December 31, 2016. During the first three quarters of 2016, the mortgage loan servicing rights were written down to their fair values, resulting in total impairment charges of $0.6 million, which was included in noninterest income. As of December 31, 2015, mortgage loan servicing rights were written down to their fair values, resulting in an impairment charge of$0.1 million, which was included in noninterest income.

ASC 825, Financial Instruments, requires an entity to provide disclosures about fair value of financial instruments, including those that are not measured and reported at fair value on a recurring or nonrecurring basis. The methodologies used in estimating the fair value of financial instruments that are measured on a recurring or nonrecurring basis are discussed above. The methodologies for the other financial instruments are discussed below: 

Cash and cash equivalents – For cash and cash equivalents, the carrying amount is a reasonable estimate of fair value. 

Securities held to maturity – The investment securities held to maturity are carried at cost. The fair value of the held to maturity securities is estimated based on quoted market prices or dealer quotes. 

Loans, net of allowance – Fair values are estimated for certain homogenous categories of loans adjusted for differences in loan characteristics. Our loans have been aggregated by categories consisting of commercial, real estate, and other consumer. The fair value of loans is estimated by discounting the cash flows using risks inherent in the loan category and interest rates currently offered for loans with similar terms and credit risks. 

Accrued interest receivable – The carrying amount is a reasonable estimate of fair value for accrued interest receivable. 

Investments included in other assets – The estimated fair value of investments included in other assets, which primarily consists of investments carried at cost, approximates their carrying values. 

Deposits – The fair value of demand deposits, savings accounts, and certain money market deposits is the amount payable on demand at the statement of financial condition date. The fair value of fixed maturity certificates of deposit is estimated using the rates currently offered for deposits of similar remaining maturities. 

Other liabilities and accrued interest payable – The estimated fair value of other liabilities, which primarily includes trade accounts payable, employee benefits, and accrued interest payable, approximates their carrying values. 

Other borrowings – Included in other borrowings are FHLB advances and securities sold under agreements to repurchase. The fair value for fixed rate FHLB advances is based upon discounted cash flow analysis using interest rates currently being offered for similar instruments. The fair values of other borrowings are the amounts payable at the statement of financial condition date, as the carrying amount is a reasonable estimate of fair value due to the short-term maturity rates.   

Subordinated debentures – All subordinated debentures have floating rates that reset quarterly.  The fair value of the floating rate subordinated debentures approximates carrying value at December 31, 2016 and December 31, 2015. 

The carrying values and estimated fair values of our financial instruments segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value are as follows:

	At December 31, 2016				At December 31, 2015
	Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Values		Values		Values		Values
Financial assets:
Level 2 inputs:
Cash and cash equivalents	$	75,650	$	75,650	$	78,129	$	78,129
Securities held to maturity		10,443		10,677		11,797		12,282
Accrued interest receivable		6,194		6,194		5,767		5,767
Mortgage loan servicing rights		3,491		4,159		3,721		3,721
Bank-owned life insurance		28,575		28,575		27,676		27,676
Investments included in other assets		14,627		14,627		10,383		10,383
Level 3 inputs:
Total loans, net of allowance		1,849,586		1,839,960		1,753,323		1,728,114
Financial liabilities:
Level 2 inputs:
Deposits		1,946,018		1,897,927		1,884,105		1,780,954
Accrued interest payable		1,132		1,132		867		867
Other liabilities		9,516		9,516		10,314		10,314
Other borrowings		183,814		183,926		110,927		112,149
Subordinated debentures		46,393		46,393		51,548		51,548

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Deposits

12 Months Ended

Dec. 31, 2016

Deposits [Abstract]

Deposits

Note 9:  Deposits

The following table summarizes deposits as of December 31, 2016 and 2015.

(Dollars in thousands)	2016		2015
Noninterest-bearing demand	$	551,709	$	596,494
Interest-bearing demand		152,656		151,015
Money market accounts		567,058		534,357
Savings accounts		56,410		56,333
Time deposits of $100,000 or more		360,307		311,538
Other time deposits		257,878		234,368
Total deposits	$	1,946,018	$	1,884,105

The total amount of overdrawn deposit accounts that were reclassified as loans at December 31, 2016 and 2015 was $0.3 million for both years.

The aggregate amounts of time deposits in denominations of $250,000 or more at December 31, 2016 and 2015 were $122.0 million and $95.4 million, respectively.

Some of our interest-bearing deposits were obtained through brokered transactions and we participate in the Certificate of Deposit Account Registry Service (“CDARS”). CDARS deposits totaled $29.0 million at December 31, 2016 and $22.5 million at December 31, 2015.  There were capital market certificate of deposits of $35.6 million at December 31, 2016 and $17.3 million at December 31, 2015.

Scheduled time deposit maturities as of December 31, 2016 are as follows: 

(Dollars in thousands)
2017	$465,324
2018	115,862
2019	22,025
2020	8,372
2021	6,575
Thereafter	27
Total time deposits	$618,185

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Borrowed Funds

12 Months Ended

Dec. 31, 2016

Borrowed Funds [Abstract]

Borrowed Funds

Note 10:  Borrowed Funds

We have available various forms of other borrowings for cash management and liquidity purposes. These forms of borrowings include short-term federal funds purchased and securities sold under agreements to repurchase, and advances from the FHLB and the FRB. The following table summarizes borrowed funds for the periods indicated:

	2016						2015
(Dollars in thousands)	Balance at December 31		Average Balance		Weighted Average Rate		Balance at December 31		Average Balance		Weighted Average Rate
Securities sold under repurchase
agreements	$	45,814	$	45,812	0.05	%	$	37,273	$	44,218	0.07	%
Federal Home Loan Bank advances		138,000		97,569	1.31			73,654		28,289	3.11
	$	183,814					$	110,927

We have approved federal funds purchase lines totaling $60.0 million  with three financial entities. We sell securities under agreements to repurchase with us retaining custody of the collateral. Collateral consists of direct obligations of U.S. Government and Federal Agency issues, which are designated as pledged with our safekeeping agent. The type of collateral required, the retention of the collateral, and the security sold, minimize our risk of exposure to loss. These transactions are for one-to-four day periods. At December 31, 2016 and 2015, the amount of collateral pledged is $61.5 million and $58.9 million, respectively.

We have entered into an agreement with the FHLB to obtain advances from the FHLB from time to time. At December 31, 2016, Bank SNB had an outstanding balance of  $138.0 million in advances from the FHLB. The terms of the agreement are set forth in the Advance, Pledge and Security Agreement between Bank SNB and FHLB (the “Agreement”). The FHLB requires that we pledge collateral on such advances. Under the terms of the Agreement, the discounted value of the collateral, as defined by the FHLB, should at all times be at least equal to the amount borrowed by us. Such advances outstanding are subject to a blanket collateral arrangement, which requires the pledging of eligible collateral to secure such advances. Such collateral principally includes certain loans and securities. At December 31, 2016 and 2015, loans pledged under the Agreement were $577.7 million and $447.9 million, and investment securities pledged (at carrying value) were $0 for both years. Scheduled minimum future principal payments to the FHLB as of December 31, 2016 are as follows: $138.0million in 2017.

We are qualified to borrow funds from the FRB through their Borrower-In-Custody program. Collateral under this program consists of pledged selected commercial and industrial loans. Currently, the collateral will allow us to borrow up to $106.7 million.At December 31, 2016 and 2015, we had no outstanding FRB borrowings.

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Trust Preferred Securities and Subordinated Debentures

12 Months Ended

Dec. 31, 2016

Subordinated Debentures [Abstract]

Subordinated Debentures

Note 11:  Trust Preferred Securities and Subordinated Debentures

At December 31, 2016 and 2015,  wehad the following issues of trust preferred securities outstanding and subordinated debentures owed to the Trusts.

At December 31, 2016
(Dollars in thousands)		Subordinated Debentures Owed to Trusts		Trust Preferred Securities of the Trusts	Rates	Final Maturity Date
OKSB Statutory Trust I	$	20,619	$	20,000	4.10%	June 26, 2033
SBI Capital Trust II		25,774		25,000	3.73%	October 7, 2033
	$	46,393	$	45,000

At December 31, 2015
(Dollars in thousands)		Subordinated Debentures Owed to Trusts		Trust Preferred Securities of the Trusts	Rates	Final Maturity Date
OKSB Statutory Trust I	$	20,619	$	20,000	3.70%	June 26, 2033
SBI Capital Trust II		25,774		25,000	3.17%	October 7, 2033
FCBI Statutory Trust I		5,155		5,000	3.33%	September 4, 2033
	$	51,548	$	50,000

On June 26, 2003, our subsidiary, OKSB Statutory Trust I, sold to investors in a private placement offering $20.0 million of adjustable rate trust preferred securities (the “OKSB Trust Preferred”). The OKSB Trust Preferred bear interest, adjustable quarterly, at 90-day LIBOR plus 3.10%. In addition to these adjustable rate securities, OKSB Statutory Trust I sold $0.6 million of trust common equity to Southwest. The aggregate proceeds of $20.6 million were used to purchase an equal principal amount of adjustable rate subordinated debentures that bear interest, adjustable quarterly, at 90-day LIBOR plus 3.10% (the “OKSB Subordinated Debentures”). After deducting underwriter’s compensation and noninterest expenses of the offering, the net proceeds were available to us to increase capital and for general corporate purposes. Interest payments on the OKSB Subordinated Debentures are deductible for federal income tax purposes.

On October 14, 2003, our subsidiary, SBI Capital Trust II, sold to investors in a private placement offering $25.0 million of adjustable rate trust preferred securities (the “SBI II Trust Preferred”). The SBI II Trust Preferred bear interest, adjustable quarterly, at 90-day LIBOR plus 2.85%. In addition to these adjustable rate securities, SBI Capital Trust II sold $0.8 million of trust common equity to us. The aggregate proceeds of $25.8 million were used to purchase an equal principal amount of our adjustable rate subordinated debenturesthat bear interest, adjustable quarterly 90-day LIBOR plus 2.85% (the “SBI II Subordinated Debentures”). The proceeds were available to us to increase capital and for general corporate purposes. Interest payments on the SBI II Subordinated Debentures are deductible for federal income tax purposes.

On  September 4, 2003, FCBIStatutory Trust I sold to investors in a private placement offering $5.0 million of adjustable rate trust preferred securities (the “FCBII  Trust Preferred”). The FCBI I Trust Preferred bear interest, adjustable quarterly, at 90-day LIBOR plus 3.00%. In addition to these adjustable rate securities, FCBI Statutory Trust I sold $0.2 million of trust common equity. The aggregate proceeds of $5.2 million were used to purchase an equal principal amount of our adjustable rate subordinated debenturesthat bear interest, adjustable quarterly 90-day LIBOR plus 3.00% (the “FCBII  Subordinated Debentures”). The proceeds were available to us to increase capital and for general corporate purposes. Interest payments on the FCBII  Subordinated Debentures are deductible for federal income tax purposes. These trust preferred security and subordinated debentures were inherited with the acquisition of FCBI and were redeemed on February 8, 2016.

At December 31, 2016, we had an aggregate of $46.4million of subordinated debentures outstanding and had an asset of $1.4 million representing our total investment in the common equity issued by the Trusts. The sole assets of the Trusts are the subordinated debentures and the liabilities of the Trusts of the OKSB Trust Preferred and SBI II Trust Preferred. We have, through various contractual arrangements, unconditionally guaranteed payment of all obligations of our Trusts with respect to our OKSB Trust Preferred and our SBI II Trust Preferred.

The OKSB Trust Preferred, the OKSB Subordinated Debentures, the SBI II Trust Preferred, and the SBI II Subordinated Debentures, mature at or near the thirtieth anniversary date of their issuance. However, if certain conditions are met, the OKSB Trust Preferred and the OKSB Subordinated Debentures and the SBI II Trust Preferred and the SBI II Subordinated Debentures may be called at our discretion with thirty days’ notice.

We, OKSB Statutory Trust I, and SBI Capital Trust II believe that, taken together, our obligations under the Trust Preferred Guarantee Agreements, the Amended and Restated Trust Agreements, the Subordinated Debentures, the Indentures and the Agreements as to Expenses and Liabilities, entered into in connection with the offering of the Trust Preferred and the Subordinated Debentures, in the aggregate constitute a full and unconditional guarantee by us of the obligations of OKSB Statutory Trust I and SBI Capital Trust II under the Trust Preferred.

OKSB Statutory Trust I is a Connecticut statutory trust created for the purpose of issuing the OKSB Trust Preferred and purchasing the OKSB Subordinated Debentures, which are its sole assets. We own all of the 619 outstanding common securities of OKSB Statutory Trust I; the liquidation value is $1,000 per share.

SBI Capital Trust II is a Delaware statutory trust created for the purpose of issuing the SBI II Trust Preferred and purchasing the SBI II Subordinated Debentures, which are its sole assets. We own all of the 774 outstanding common securities of SBI Capital Trust II; the liquidation value is $1,000 per share.

FCBI Statutory Trust I is a statutory trust created for the purpose of issuing the FCBI I Trust Preferred and purchasing the FCBI I Subordinated Debentures, which are its sole assets. All trust assets were redeemed on February 8, 2016. 

Each of the Trust Preferred issuances meets the regulatory criteria for Tier I capital, subject to Federal Reserve guidelines that limit the amount of the Trust Preferred and cumulative perpetual preferred stock to an aggregate of 25% of Tier I capital. At December 31, 2016, $45.0 million of the Trust Preferred was included in Tier I capital.

We de-consolidate our investments in OKSB Statutory Trust I, SBI Capital Trust II, and FCBI Statutory Trust I (the “Trusts”) in this Annual Report. Due to this required de-consolidation, the trust preferred securities are not presented on the Consolidated Statements of Financial Condition and the subordinated debentures are presented on the Consolidated Statements of Financial Condition as a separate liability category.

The terms of the debentures allow us to defer payments of interest for up to 20 consecutive quarterly periods without default or penalty. These terms also allow us to resume payments at the end of any deferral period, or to extend the deferral up to the maximum 20 quarters in total. No deferral can extend past the maturity date of the debenture.

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Derivative Instruments

12 Months Ended

Dec. 31, 2016

Derivative Instruments [Abstract]

Derivative Instruments

Note 12:  Derivative Instruments

We utilize derivatives instruments to manage exposure to various types of interest rate risk for us and our customers within policy guidelines. All derivative instruments are carried at fair value, in which credit risk is considered in determining fair value.

Derivative contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have an investment grade credit rating and be approved by our asset/liability management and executive loan committees. Our credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps with each counterparty. Access to collateral in the event of default is reasonably assured. Therefore, credit exposure may be reduced by the amount of collateral pledged by the counterparty.

Customer Risk Management Interest Rate Swaps

Our qualified customers have the opportunity to participate in our interest rate swap program for the purpose of managing interest rate risk on their variable rate loans with us. We enter into such agreements with customers, then offsetting agreements are executed between us and approved dealer counterparties to minimize our market risk from changes in interest rates. The counterparty contracts are identical to customer contracts in terms of notional amounts, interest rates, and maturity dates, except for a fixed pricing spread or fee paid to us by the dealer counterparty. These interest rate swaps carry varying degrees of credit, interest rate and market or liquidity risks. The fair value of these derivative instruments are recognized as either non-hedge derivative assets or liabilities in the Consolidated Statements of Financial Condition. 

We have entered into nine customer interest rate swap agreements that effectively convert the loan interest rate from floating rate based on LIBOR to a fixed rate for the customer. As of December 31, 2016, these loans had an outstanding balance of $124.0 million. We have entered into offsetting agreements with dealer counterparties. The following table summarizes the fair values of derivative contracts recorded as “non-hedge derivative assets” and “non-hedge derivative liabilities” in the Consolidated Statements of Financial Condition.

	As of December 31,2016				As of December 31,2015
(Dollars in thousands)	Notional		Fair Value		Notional		Fair Value
Non-hedge derivative assets	$	123,953	$	1,235	$	101,629	$	1,793
Non-hedge derivative liabilities		123,953		1,235		101,629		1,793

The floating rate paid in connection with these interest rate swap agreements is a contractual percentage rate spread to one-month LIBOR or to the Prime rate as of December 31, 2016. From time to time it may be necessary to post collateral with our dealer counterparties to secure the market values of these contracts. As of December 31, 2016, there was no collateral requirement with any of our dealer counterparties given the current market values of these contracts. These interest rate swaps are not designated as hedging instruments.

Interest Rate Swap on Trust Preferred Securities

We have an interest rate swap agreement with a total notional amount of $25.0 million. The interest rate swap contract was designated as a cash flow hedging instrument with the objective of protecting the overall cash flow from our quarterly interest payments on the SBI Capital Trust II preferred securities throughout the seven year period beginning February 11, 2011 and ending April 7, 2018 from the risk of variability of those payments resulting from changes in the three-month LIBOR. Under the swap, we will pay a fixed interest rate of 6.15% and receive a variable interest rate of three-month LIBOR plus a margin of 2.85% on a total notional amount of $25.0 million, with quarterly settlements. The rate received by us as of December 31, 2016  was 3.73%.

The estimated fair value of the interest rate derivative contract outstanding as of December 31, 2016 and 2015 resulted in a pre-tax loss of $0.7 million and $1.4 million, respectively, and was included in other liabilities in the Consolidated Statements of Financial Condition. 

The effective portion of the gain or loss due to changes in the fair value of the derivative hedging instrument, a  $0.4 million gain and a $0.1 million gain for the year ended December 31, 2016 and 2015, respectively, is included in other comprehensive income, net of tax, while the ineffective portion (indicated by the excess of the cumulative change in the fair value of the derivative over that which is necessary to offset the cumulative change in expected future cash flows on the hedge transaction) is included in other noninterest income or other noninterest expense. No ineffectiveness related to the interest rate derivative was recognized during either reporting period.   

Net cash flows as a result of the interest rate swap agreement were $0.7 million for the year ended December 31, 2016 and $0.8 million for each of the years ended December 31, 2015and 2014 and were included in interest expense on subordinated debentures.   

We posted cash collateral with our counterparty related to the derivative contract in excess of the required $0.7 million and $1.4 million at December 31, 2016 and 2015, respectively.

There are no credit-risk-related contingent features associated with our derivative contract. 

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Taxes On Income

12 Months Ended

Dec. 31, 2016

Taxes On Income [Abstract]

Taxes On Income

Note 13:  Taxes on Income

The components of taxes on income follow:

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Current tax (benefit) expense:
Federal	$	8,809	$	7,534	$	3,251
State		173		143		186
Deferred tax expense (benefit):
Federal		44		1,126		7,970
State		783		990		1,210
Taxes on income	$	9,809	$	9,793	$	12,617

A reconciliation from the expected tax expense (benefit) using the U.S. Federal income tax rate of 35% to consolidated effective income tax expense (benefit) follows:

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Computed tax (benefit) expense at statutory rates	$	9,630	$	9,520	$	11,777
Increase (decrease) in income taxes resulting from:
Benefit of income not subject to U.S. Federal income tax		(632)		(621)		(209)
Expenses not deductible for U.S. Federal income tax		216		220		129
State income taxes, net of Federal income tax benefit		621		736		907
Other		(26)		(62)		13
Taxes on income	$	9,809	$	9,793	$	12,617

The calculated year-to-date effective tax rate is  35.7% for 2016,  36.0% for 2015, and 37.5% for 2014.

At December 31, 2013,  we had $10.7 million federal net operating loss carryforward expiring in2031, $53.1 million of state net operating loss carryforward expiring in 2031, and $0.6 million of state net operating loss carryforward expiring in 2021. In addition, we had $2.5 million alternative minimum tax credit that can be carried forward indefinitely. During 2014,we fully utilized the remaining federal net operating loss carryforward and the alternative minimum tax credit that had been carried forward. At December 31, 2016,  we had $10.3 million of state net operating loss carryforward expiring in2031.

A deferred tax asset or liability is recognized for the tax consequences of temporary differences in the recognition of certain income and expense items for financial statement reporting purposes. A valuation allowance is provided when itis more likely than not that some portion or all of a deferred tax asset will not be realized. It was determined that no valuation allowance was required for both 2016 and 2015.

Net deferred tax assets of $13.2 million and $14.0 million at December 31, 2016 and 2015, respectively, are reflected in the accompanying Consolidated Statements of Financial Condition in other assets. 

Temporary differences that give rise to the deferred tax assets include the following:

		At December 31,
(Dollars in thousands)		2016		2015
Deferred tax assets:
	Provision for loan losses	$	10,976	$	10,291
	Net operating loss carryforward		380		858
	Write-downs on other real estate		-		57
	Nonaccrual loan interest		510		603
	Deferred compensation & profit sharing accrual		782		711
	Investments		306		311
	Section 597 gain - FDIC-assisted acquisition		388		472
	Accrued expenses		859		1,013
	Loan purchase accounting adjustment		1,392		2,725
	Stock-based compensation		805		629
	Other		659		(2)
Total deferred tax assets			17,057		17,668
Deferred tax liabilities:
	Accumulated depreciation		(2,966)		(2,877)
	Amortizable assets		(933)		(1,089)
	Dividend - Equity vs. Cost Method		(471)		(393)
	Prepaid expenses		(110)		(109)
	FHLB stock dividends		(65)		(132)
Total deferred tax liabilities			(4,545)		(4,600)
	Deferred taxes payable on investment
	securities available for sale		643		885
Net deferred tax asset		$	13,155	$	13,953

We or one of our subsidiaries files income tax returns in the U.S. federal jurisdiction and various state jurisdictions. Weare no longer subject to U.S. federal or state tax examinations for years before 2013. Additionally, as procedurally required, our company’s 2010 and 2011 federal returns were examined in connection with the 2011 net operating loss carryback and no adjustments were required.

Unrecognized Tax Benefits – ASC 740, Income Taxes, provides guidance on the recognition, measurement, and classification of income tax uncertainties, along with any related interest and penalties. As of December 31, 2016, we have no unrecognized tax benefits related to Federal or State income tax matters and do not anticipate any changes within the next twelve months. Additionally, no interest and penalties have been accrued related to uncertain tax positions.

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Shareholders' Equity

12 Months Ended

Dec. 31, 2016

Shareholders' Equity [Abstract]

Shareholders' Equity

Note 14:  Shareholders’ Equity

We have reserved for issuance 150,000 shares of common stock pursuant to the terms of the Employee Stock Purchase Plan. The Employee Stock Purchase Plan allows our employees to acquire additional common shares through payroll deductions. From July 1999 to August 2009, shares issued out of this plan came from treasury shares, subsequent shares issued came from the reserved shares. As of December 31, 2016,  61,115 total shares had been issued and 52,500total treasury shares had been reissued under this plan. As of December 31, 2015, 59,873 total shares had been issued and 52,500total treasury shares had been reissued under this plan.

We have reserved 800,000 shares of common stock pursuant to the terms of the 2008 Stock Plan. The 2008 Stock Plan provides selected key employees with the opportunity to acquire common stock. As of December 31, 2016, 603,545 new shares had been issued and 25,725 treasury shares had been reissued by the 2008 Stock Plan.As of December 31, 2015,  512,101 new shares had been issued and  25,725 treasury shares had been reissued by the 2008 Stock Plan.

Stock Repurchase Program – On May 25, 2016, the Board authorized our fourth stock repurchase program since August 2014. The program authorizes the repurchase of up to another 5.0%, or approximately 921,000 shares, of our outstanding common stock and became effective February 23, 2017, which was the original expiration date of the third program. During 2016, we repurchased 1,398,026 shares for a total of $22.1million, and since August 2014, we have repurchased a total of 2,519,584 shares for a total of  $40.8 million. Repurchases under the program are available at the discretion of management based upon market, business, legal, and other factors. Our ability to repurchase our common stock is limited during the time that the Merger is pending.

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Earnings Per Common Share

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Earnings Per Share

Note 15:  Earnings per Common Share

The following table shows the computation of basic and diluted earnings per common share: 

(Dollars in thousands, except earnings per share data)	2016		2015		2014
Numerator:
Net income	$	17,704	$	17,407	$	21,030
Earnings allocated to participating securities		(279)		(258)		(253)
Numerator for earnings per common share	$	17,425	$	17,149	$	20,777
Denominator:
Denominator for basic earnings per common share		18,660,951		18,975,450		19,417,486
Dilutive effect of stock compensation		205,916		148,059		142,877
Denominator for diluted earnings per common share		18,866,867		19,123,509		19,560,363
Earnings per common share:
Basic	$	0.93	$	0.90	$	1.07
Diluted	$	0.92	$	0.90	$	1.06

At December 31, 2016 and December 31, 2015, there were 6,573and 38,145 anti-dilutive restricted stock awards outstanding, respectively. There were no anti-dilutive restricted stock awards outstanding at December 31, 2014.

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Capital Requirements and Regulatory Matters

12 Months Ended

Dec. 31, 2016

Capital Requirements And Regulatory Matters [Abstract]

Capital Requirements And Regulatory Matters

Note 16:  Capital Requirements and Regulatory Matters

We and Bank SNB are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could have a direct material effect on our andBank SNB’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, we and Bank SNB must meet specific capital guidelines that involve quantitative measures of our and Bank SNB’s assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. Our and Bank SNB’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Quantitative measures established by regulation to ensure capital adequacy require us and Bank SNB to maintain minimum amounts of Total, Tier I Capital (as defined in the regulations), and CET1 Capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier I Capital (as defined) to average assets (as defined). 

Management believes that, as of December 31, 2016 and December 31, 2015, we and Bank SNB met all capital adequacy requirements.

As of December 31, 2016 and December 31, 2015, Bank SNB was categorized as well-capitalized under the regulatory framework for prompt corrective action. To be categorized as well-capitalized, the Bank must maintain minimum Total risk-based, Tier I risk-based, CET1 risk-based, and Tier I leverage ratios as set forth in the following table.

A summary of actual capital amounts and ratios as of December 31, 2016 are presented below.

					Required to be Considered				For Capital
	Actual				Well-Capitalized				Adequacy Purposes
(Dollars in thousands)	Amount		Ratio			Amount	Ratio			Amount	Ratio
As of December 31, 2016:
Total CET1 Capital (to risk-weighted assets)
Southwest	$	272,882	12.36	%	$	143,488	6.50	%	$	99,338	4.50	%
Bank SNB		301,023	13.66			143,189	6.50			99,131	4.50
Total Capital (to risk-weighted assets)
Southwest		345,597	15.66			220,751	10.00			176,601	8.00
Bank SNB		328,681	14.92			220,291	10.00			176,232	8.00
Tier 1 Capital (to risk-weighted assets)
Southwest		317,882	14.40			176,601	8.00			132,450	6.00
Bank SNB		301,023	13.66			176,232	8.00			132,174	6.00
Tier 1 Leverage (to average assets)
Southwest		317,882	13.02			122,046	5.00			97,637	4.00
Bank SNB		301,023	12.37			121,686	5.00			97,349	4.00

A summary of actual capital amounts and ratios as of December 31, 2015 are presented below.

					Required to be Considered				For Capital
	Actual				Well-Capitalized				Adequacy Purposes
(Dollars in thousands)	Amount		Ratio			Amount	Ratio			Amount	Ratio
As of December 31, 2015:
Total CET1 Capital (to risk-weighted assets)
Southwest	$	282,737	13.21	%	$	139,122	6.50	%	$	96,316	4.50	%
Bank SNB		291,125	13.65			138,637	6.50			95,980	4.50
Total Capital (to risk-weighted assets)
Southwest		359,300	16.79			214,034	10.00			171,228	8.00
Bank SNB		317,865	14.90			213,288	10.00			170,631	8.00
Tier 1 Capital (to risk-weighted assets)
Southwest		332,468	15.53			171,228	8.00			128,421	6.00
Bank SNB		291,125	13.65			170,631	8.00			127,973	6.00
Tier 1 Leverage (to average assets)
Southwest		332,468	14.41			115,371	5.00			92,297	4.00
Bank SNB		291,125	12.66			114,939	5.00			91,951	4.00

The approval of the Oklahoma State Banking Department and the Federal Reserve Bank is required if the total of all dividends declared by Bank SNB in any calendar year exceeds the total of its net profits of that year combined with its retained net profits of the preceding two years. In addition, Bank SNB may not pay a dividend if, after paying the dividend, Bank SNB would be undercapitalized. 

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Employee Benefits

12 Months Ended

Dec. 31, 2016

Employee Benefits [Abstract]

Employee Benefits

Note 17:  Employee Benefits

We sponsor a 401(k) defined contribution savings plan. The plan permitsemployees to make salary deferral contributions and Roth deferral contributions and permits us to make matching contributions and nonelective contributions. For salary deferral contributions and Roth deferral contributions, employees may become participants in the plan immediately upon their hire date. For the matching contributions, employees who have completed 30 days of service and have attained the age of 21 may become participants in the plan. For the nonelective contributions, employees who have completed one year of service and have attained the age of 21 may become participants in the plan. The plan is subject to the Employee Retirement Income Security Act of 1974, as amended. The plan permits participants to make before or after-tax contributions in an amount not exceeding 90% of eligible compensation and subject to dollar limits from Internal Revenue Service regulations. 

Matching contributions and minimum contributions, if any, become vested based on employees’ years of service with us. The vested percentage of matching contributions is determined by employees’ completed years of service:  less than one year equals 0% vested, one year equals 33% vested, two years equal 66% vested, and three or more years equal 100% vested. Nonelective contributions and minimum contributions, if any, also become vested based on employees’ years of service with us. The vested percentage of nonelective contributions is determined by employees’ completed years of service:  less than two years equal 0% vested, two years equal 20% vested, three years equal 40% vested, four years equal 60% vested, and five or more years equal 100% vested. Employees that terminate employment with us will not be entitled to any portion of their accounts that are not vested. The portion not yet vested will be considered a forfeiture. If the employees returns to work for us before five consecutive one-year breaks in service, the forfeited portions of their accounts may be restored if they repay any distributions received at termination. For those that did not receive a distribution and are reemployed by us, their accounts will automatically be restored.

During 2015 and 2014, we made an annual nonelective contribution of 3% of eligible compensation.We made contributions of $0.7 million and $0.6 million in 2015 and 2014, respectively. Effective January 1, 2016, we changed our plan to permit us to make a matching contribution equal to 50% of the first 8% of employees’ pre-tax or Roth salary deferral contributions up to a maximum of 4% of their salaries on an annual basis. We may choose to make a nonelective contribution in an amount in the same ratio that employees’ salaries bear to the total salary of all participants in the plan. The amount of the contribution, if any, is determined each plan year and announced to all participants. During 2016, we made matching contributions of $0.8 million and no nonelective contributions.

Stock Options – We recorded no share-based compensation expense with respect to stock options for the years ended December 31, 2016, 2015, and 2014. The share-based compensation is calculated using the accrual method, which treats each vesting tranche as a separate award and amortizes expense evenly from grant date to vest date for each tranche. 

There were no outstanding options as of December 31, 2016 and 2015.

No stock options were exercised in 2016, 2015 and 2014.  

Restricted Stock -Restricted shares granted as of December 31, 2016, 2015 and 2014 were 546,895,  462,024, and 453,987, respectively. We recognized $1.5 million for the year ended December 31, 2016 and $1.3 million for the year ended December 31, 2015 and $0.6 million for the year ended December 31, 2014, in compensation expense, related to all restricted shares outstanding. At December 31, 2016, there was $1.6 million of total unrecognized compensation expense related to restricted shares granted under the 2008 Stock Plan. Of the total unrecognized compensation expense at December 31, 2016, $1.0 million will be recognized in 2017, and the remainder will be recognized the following two years.

The 2016 and 2015 grants of restricted stock have a vesting period betweenone to three years. The restrictions on the shares expire one year after the award date or upon the earlier to occur of satisfaction of vesting conditions, a change in control of us, or the permanent and total disability or death of the participant. We recognize compensation expense over the restricted period.

Supplemental Executive Retirement Plan – Through the acquisition of Bancshares, we inherited a nonqualified supplemental executive retirement plan for certain officers. The plan is closed to any future employees and is funded by the bank owned life insurance acquired from Bancshares. This plan provides for postretirement salary and life insurance benefits, as determined by the plan document. As of December 31, 2016, the accrued deferred compensation was $1.4 million.

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Related Party Transactions

12 Months Ended

Dec. 31, 2016

Related Party Transactions [Abstract]

Related Party Transactions

Note 18:  Related Party Transactions

Directors and officers of us and Bank SNB were customers of, and had transactions with,us in the ordinary course of business, and similar transactions are expected in the future. All loans included in such transactions were made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other persons and in management’s opinion did not involve more than normal risk of loss or present other unfavorable features. Certain directors, and companies in which they have ownership interests, had indebtedness to us totaling $14.2  million and $26.1 million at December 31, 2016 and 2015, respectively. During 2016, $26.9 million of new loans and advances on existing loans were made to these persons and repayments totaled $38.9 million.During 2015, $41.2 million of new loans and advances on existing loans were made to these persons and repayments totaled $24.2 million.

At December 31, 2016 and 2015, directors, officers and other related parties had demand, non-interest bearing deposits of $1.8 million and $2.1 million, respectively, savings and interest-bearing transaction accounts of $13.2 million and $14.0 million, respectively, and time certificates of deposit of $0 and $0.5 million, respectively.

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Off Balance Sheet Arrangements, Commitments, Guarantees, And Contractual Obligations

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies [Abstract]

Off-Balance-Sheet Arrangements, Commitments, Guarantees And Contingencies

Note 19:  Off-Balance-Sheet Arrangements, Commitments, Guarantees and Contingencies

Financial Instruments with Off-Balance-Sheet Risk – In the normal course of business, we make use of a number of different financial instruments to help meet the financial needs of our customers. In accordance with U.S. generally accepted accounting principles, these transactions are not presented in the accompanying consolidated financial statements and are referred to as off-balance sheet instruments. These transactions and activities include commitments to extend lines of commercial and real estate mortgage credit and standby and commercial letters of credit. The following table provides a summary of our off-balance sheet financial instruments:

	At December 31,
(Dollars in thousands)	2016		2015
Commitments to extend commercial and real estate mortgage credit	$	429,383	$	446,412
Standby and commercial letters of credit		7,160		6,595
Total	$	436,543	$	453,007

A loan commitment is a binding contract to lend up to a maximum amount for a specified period of time provided there is no violation of any financial, economic, or other terms of the contract. A standby letter of credit obligates us to honor a financial commitment to a third party should our customer fail to perform. Many loan commitments and most standby letters of credit expire unfunded, and, therefore, total commitments do not represent our future funding obligations. Loan commitments and letters of credit are made under normal credit terms, including interest rates and collateral prevailing at the time, and usually require the payment of a fee by the customer. Commercial letters of credit are commitments generally issued to finance the movement of goods between buyers and sellers. Our exposure to credit loss, assuming commitments are funded, in the event of nonperformance by the other party to the financial instrument is represented by the contractual amount of those instruments. We do not anticipate any material losses as a result of the commitments.

Litigation – In the normal course of business, we are at all times subject to various pending and threatened legal actions. The relief or damages sought in some of these actions may be substantial. After reviewing pending and threatened actions with counsel, management considers that the outcome of such actions will not have a material adverse effect on our financial position; however, we are not able to predict whether the outcome of such actions may or may not have a material adverse effect on results of operations in a particular future period as the timing and amount of any resolution of such actions and relationship to the future results of operations are not known.

Severance Compensation Plan and Change in Control Agreements – We have adopted a Severance Compensation Plan and a Change of Control Agreement (the “Plans”) for the benefit of certain officers and key members of management. The Plan’s purpose is to protect and retain certain qualified employees in the event of a change in control and to reward those qualified employees for loyal service to us by providing severance compensation to them upon their involuntary termination of employment after a change in control of Southwest. At December 31, 2016, we have not recorded any amounts in the Consolidated Financial Statements relating to the Plans. If a change of control were to occur, the maximum amount payable to certain officers and key members of management would approximate $12.1 million.

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Operating Segments

12 Months Ended

Dec. 31, 2016

Operating Segments [Abstract]

Operating Segments

Note 20:  Operating Segments

We operatefour principal segments:  Oklahoma Banking, Texas Banking, Kansas Banking, and Other Operations. The Oklahoma Banking segment provides deposit and lending services and consists of residential mortgage lending services to customers. Due to its size and the management structure, Colorado Banking is included within Oklahoma Banking. The Texas Banking segment and the Kansas Banking segment provide deposit and lending services.  Other Operations includes our funds management unit and corporate investments. Prior to the fourth quarter of 2015,  we disclosed a Mortgage Banking segment, which included 1-4 family mortgages and the available for sale loans.For segment reporting, the Mortgage Banking segment has been combined with and into the Oklahoma Banking segment due to those loans being managed from that location. Prior period numbers have been adjusted to reflect this change. This adjustment has no financial statement impact.

The primary purpose of the funds management unit is to manage our overall internal liquidity needs and interest rate risk. Each segment borrows funds from or provides funds to the funds management unit as needed to support its operations. 

The value of funds provided to and the cost of funds borrowed from the funds management unit by each segment are internally priced at rates that approximate market rates for funds with similar duration. The yield used in the funds transfer pricing curve is a blend of rates based on the volume usage of retail and brokered certificates of deposit and FHLB advances. 

The accounting policies of each reportable segment are the same as ours. Expenses for consolidated back-office operations are allocated to operating segments based on estimated uses of those services. General overhead expenses such as executive administration, accounting, and audit are allocated based on the direct expense and/or deposit and loan volumes of the operating segment. Income tax expense for the operating segments is calculated at statutory rates. The Other Operations segment records the tax expense or benefit necessary to reconcile to the consolidated financial statements. 

Capital is assigned to each of the segments using a risk-based capital pricing methodology that assigns capital ratios by asset, deposit, or revenue category based on credit risk, interest rate risk, market risk, operational risk, and liquidity risk factors.  There were no significant changes in 2016 due to funds transfer pricing, capital assignments, or expense allocations.

The following table summarizes financial results by operating segment: 

For the year ended December 31, 2016
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	50,590	$	22,697	$	6,694	$	(538)	$	79,443
Provision for loan losses		2,007		973		1,786		3		4,769
Noninterest income		11,576		1,273		1,202		2,034		16,085
Noninterest expenses		40,083		13,734		5,275		4,154		63,246
Income (loss) before taxes		20,076		9,263		835		(2,661)		27,513
Taxes on income		7,157		3,303		298		(949)		9,809
Net income (loss)	$	12,919	$	5,960	$	537	$	(1,712)	$	17,704
* Includes externally generated revenue of $3.0 million, primarily from investing services, and an internally generated loss of $1.5 million from the funds management unit.
Total loans at period end	$	1,095,930	$	636,643	$	144,559	$	-	$	1,877,132
Total assets at period end		1,138,969		633,328		143,558		559,537		2,475,392
Total goodwill at period end		12,525		1,020		-		-		13,545
Total deposits at period end		1,330,176		195,603		147,823		272,416		1,946,018

For the year ended December 31, 2015
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	42,019	$	21,168	$	6,277	$	(2,047)	$	67,417
Provision (credit) for loan losses		(2,068)		(632)		(868)		2		(3,566)
Noninterest income		10,134		1,485		1,473		1,365		14,457
Noninterest expenses		33,136		14,324		6,152		4,628		58,240
Income (loss) before taxes		21,085		8,961		2,466		(5,312)		27,200
Taxes on income		7,591		3,227		888		(1,913)		9,793
Net income (loss)	$	13,494	$	5,734	$	1,578	$	(3,399)	$	17,407
* Includes externally generated revenue of $2.1 million, primarily from investing services, and an internally generated loss of $2.8 million from the funds management unit.
Total loans at period end	$	1,048,473	$	580,476	$	150,480	$	-	$	1,779,429
Total assets at period end		1,098,735		578,749		149,847		529,691		2,357,022
Total goodwill at period end		12,447		1,020		-		-		13,467
Total deposits at period end		1,374,227		209,146		119,313		181,419		1,884,105

For the year ended December 31, 2014
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	38,846	$	19,187	$	9,469	$	(2,498)	$	65,004
Provision (credit) for loan losses		(2,561)		(3,640)		(425)		2		(6,624)
Noninterest income		9,030		1,594		1,576		6,731		18,931
Noninterest expenses		31,363		13,387		8,616		3,546		56,912
Income before taxes		19,074		11,034		2,854		685		33,647
Taxes on income		7,152		4,138		1,070		257		12,617
Net income	$	11,922	$	6,896	$	1,784	$	428	$	21,030
* Includes externally generated revenue of $7.6 million, primarily from investing services, and an internally generated loss of $3.3 million from the funds management unit.
Total loans at period end	$	793,262	$	460,680	$	146,043	$	6	$	1,399,991
Total assets at period end		805,704		458,489		147,256		530,585		1,942,034
Total goodwill at period end		194		1,020		-		-		1,214
Total deposits at period end		1,113,477		224,634		110,901		84,987		1,533,999

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Parent Company Condensed Financial Information

12 Months Ended

Dec. 31, 2016

Parent Company Condensed Financial Information [Abstract]

Parent Company Condensed Financial Information

Note 21:  Parent Company Condensed Financial Information 

Following are the condensed financial statements of Southwest Bancorp, Inc. (“Parent Company only”) for the periods indicated:

	At December 31,
(Dollars in thousands)	2016		2015
Statements of Financial Condition
Assets:
Cash and cash equivalents	$	12,105	$	30,469
Investment in subsidiary banks		315,181		305,064
Investments in other subsidiaries		2,084		8,444
Other assets		5,499		6,393
Total	$	334,869	$	350,370
Liabilities:
Subordinated debentures		46,393		51,548
Other liabilities		1,847		2,724
Shareholders' Equity:
Common stock and related accounts		286,629		296,098
Total	$	334,869	$	350,370

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Statements of Operations
Income:
Cash dividends from subsidiaries	$	10,052	$	20,046	$	18,045
Noninterest income		25		45		34
Investment income		-		20		1,337
Other operating income		15		25		3
Security gains		-		163		-
Total income		10,092		20,299		19,419
Expense:
Interest on subordinated debentures		1,740		1,566		1,505
Noninterest expense		2,191		1,756		1,317
Total expense		3,931		3,322		2,822
Total income before taxes and equity in
undistributed income of subsidiaries		6,161		16,977		16,597
Taxes on income		(1,377)		(1,167)		(582)
Income before equity in undistributed
income of subsidiaries		7,538		18,144		17,179
Equity in undistributed income (loss) of subsidiaries		10,166		(737)		3,851
Net income	$	17,704	$	17,407	$	21,030

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Statements of Cash Flows
Operating activities:
Net income	$	17,704	$	17,407	$	21,030
Equity in undistributed (income) loss of subsidiaries		(10,166)		737		(3,851)
Other, net		6,823		2,295		2,937
Net cash provided by operating activities		14,361		20,439		20,116
Investing activities:
Available for sale securities:
Purchases		-		-		(1,121)
Sales / Maturities		-		750		2,540
Outlays for business acquisitions		-		(4,697)		-
Other, net		-		(155)		-
Net cash provided by (used in) investing activities		-		(4,102)		1,419
Financing activities:
Net proceeds from issuance of common stock		1,239		682		1,386
Purchases of treasury stock		(22,721)		(8,624)		(10,302)
Common stock dividend		(6,088)		(4,607)		(3,132)
Other, net		(5,155)		5,155		-
Net cash used in financing activities		(32,725)		(7,394)		(12,048)
Net increase (decrease) in cash and cash equivalents		(18,364)		8,943		9,487
Cash and cash equivalents,
Beginning of year		30,469		21,526		12,039
End of year	$	12,105	$	30,469	$	21,526

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies [Abstract]

Commitments and contingencies

Note 22:  Commitments and Contingencies

Customer Risk Management Interest Rate Swap

On September 9, 2014, we entered into an agreement to provide one of our commercial borrowers a customer interest rate swap that effectively converts the loan interest rate from floating rate based on LIBOR to a fixed rate for the customer. As of December 31, 2016, the floating rate loan had an outstanding balance of $14.7 million. The option to execute the swap is conditional on compliance with the loan and swap agreements, and will be subject to the terms of the International Swaps and Derivatives Association Master Agreement. The fixed pay amount will be based on the market rates at the time of execution, and it is our intention to simultaneously execute an offsetting trade with an approved swap dealer counterparty with identical terms. 

We have seven risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract with the financial institution. As of December 31, 2016, the current notional amount for these seven transactions total $34.7 million.

Legal Action

On March 18, 2011,  an action entitled Ubaldi, et al. v SLM Corporation (“Sallie Mae”), et al., Case No. 3:11-cv-01320 EDL (the “Ubaldi Case”) was filed in the U.S. District Court for the Northern District of California as a putative class action with respect to certain loans that the plaintiffs claim were made by Sallie Mae. The loans in question were made by various banks, including Bank SNB, and sold to Sallie Mae. Plaintiffs claim that Sallie Mae entered into arrangements with chartered banks in order to evade California law and that Sallie Mae is the de facto lender on the loans in question and, as the lender on such loan, Sallie Mae charged interest and late fees that violates California usury law and theCalifornia Business and Professions Code. Sallie Mae has denied all claims asserted against it and has stated that it intends to vigorously defend the action. On March 26, 2014, the Court denied the plaintiffs’ request to certify the class; however, the Court permitted the plaintiffs to amend the filing to redefine the class. Plaintiffs filed a renewed motion on June 23, 2014. On December 19, 2014, the Court issued a decision on the renewed motion, certifying a class with respect to claims of improper late fees, but denying class certification with respect to plaintiffs’ usury claims. Plaintiffs thereafter filed a motion seeking leave to amend their complaint to add additional parties, which Sallie Mae opposed, and, on March 24, 2015, the Court denied the plaintiffs’ motion. On June 5, 2015, the law firm Cohen Milstein Sellers & Toll based in Washington, D.C. entered its appearance as co-counsel on behalf of plaintiffs.

Bank SNB is not specifically named in the action. However, in the first quarter of 2014, Sallie Mae provided Bank SNB with a notice of claims that have been asserted against Sallie Mae in the Ubaldi Case (the “Notice”). Sallie Mae asserts in the Notice that Bank SNB may have indemnification and/or repurchase obligations pursuant to the ExportSS Agreement dated July 1, 2002 between Sallie Mae and Bank SNB, pursuant to which the loans in question were made by Bank SNB. Bank SNB has substantial defenses with respect to any claim for indemnification or repurchase ultimately made by Sallie Mae, if any, and intends to vigorously defend against any such claims.

Due to the uncertainty regarding (i) the size and scope of the class, (ii) the particular class members, (iii) the late fees charged to particular class members, (iv) the theories, if any, under which the plaintiffs might prevail, (v) whether Sallie Mae will make a claim against us for indemnification or repurchase, and (vi) the likelihood that Sallie Mae would prevail if it makes such a claim, we cannot estimate the amount or the range of losses that may arise as a result of the Ubaldi Case.

In the normal course of business, we are at all times subject to various pending and threatened legal actions. The relief or damages sought in some of these actions may be substantial. After reviewing pending and threatened actions with counsel, management currently does not expect that the outcome of such actions will have a material adverse effect on our financial position; however, we are not able to predict whether the outcome of such actions may or may not have a material adverse effect on results of operations in a particular future period as the timing and amount of any resolution of such actions and relationship to the future results of operations are not known.

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New Authoritative Accounting Guidance

12 Months Ended

Dec. 31, 2016

New Authoritative Accounting Guidance [Abstract]

New Authoritative Accounting Guidance

Note 23:  New Authoritative Accounting Guidance

In May 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606), which establishes a five-step model that entities must follow to recognize revenue. The guidance would have become effective for us on January 1, 2017. However, in August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606)—Deferral of the Effective Date, which deferred the effective date of ASU 2014-09 by one year. The guidance will now become effective for us on January 1, 2018, and is not expected to have a material impact on our financial statements and disclosures.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurements of Financial Assets and Financial Liabilities. This ASU requires that all equity investments be measured at fair value with changes in the fair value recognized through net income (other than those accounted for under the equity method of accounting or those that result in consolidation of the investee). This ASU also requires that an entity present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. In addition, this ASU eliminates the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities and the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet for public business entities. The guidance becomes effective for us on January 1, 2018, and we are evaluating the impact of this ASU on our financial statements and disclosures. 

In February 2016, the FASB issued ASU 2016-02, Leases. This ASU requires lessees to put most leases on their balance sheets but recognize expenses in the income statement in a manner similar to current accounting treatment. This ASU changes the guidance on sale-leaseback transactions, initial direct costs and lease execution costs, and, for lessors, modifies the classification criteria and the accounting for sales-type and direct financing leases. The guidance becomes effective for us on January 1, 2019. Entities are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. We are evaluating the impact of this ASU on our financial statements and disclosures.

In March 2016, the FASB issued ASU 2016-05, Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships. This ASU clarifies that a change in the counterparty of a derivative contract (i.e., a novation) in a hedge accounting relationship does not, in and of itself, require dedesignation of the hedge accounting relationship. This guidance becomes effective for us on January 1, 2017, and it is not expected to have a material impact on our financial statements and disclosures.  

In March 2016, the FASB issued ASU 2016-06, Contingent Put and Call Options in Debt Instruments. This ASU clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. An entity performing the assessment under this ASU is required to assess the embedded call (put) options solely in accordance with the four-step decision sequence. The amendments apply to all entities that are issuers of or investors in debt instruments (or hybrid financial instruments that are determined to have a debt host) with embedded call (put) options. This guidance becomes effective for us on January 1, 2017, and it is not expected to have a material impact on our financial statements and disclosures.

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting. This ASU simplifies several aspects of the accounting for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This guidance becomes effective for us on January 1, 2017, and it is not expected to have a material impact on our financial statements and disclosures.

In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing. While this ASU does not change the core principles of the guidance in Topic 606, it does clarify the guidance related to identifying performance obligations as well as the accounting for licenses of intellectual property. This guidance becomes effective for us on January 1, 2017, and it is not expected to have a material impact on our financial statements and disclosures.

In May 2016, the FASB issued ASU 2016-11, Revenue Recognition (Topic 605) and Derivatives Hedging (Topic 815), Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting (SEC Update). This ASU rescinds from the FASB Accounting Standards Codification certain SEC Observer comments that are codified in FASB ASC Topic 605, Revenue Recognition, and ASC 932, Extractive Activities – Oil and Gas, effective upon an entity’s adoption of FASB ASC 606, Revenue from Contracts with Customers. This ASU also rescinds the SEC Staff Announcement:  Determining the Nature of a Host Contract Related to a Hybrid Instrument Issued in the Form of a Share under Topic 815,” which is codified in FASB ASC Topic 815, Derivatives and Hedging, effective on adoption of FASB ASU 2014-16, Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share is More Akin to Debt or Equity. This guidance becomes effective for us on January 1, 2018, and it is not expected to have a material impact on our financial statements and disclosures.

In May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers (Topic 606), Narrow-Scope Improvements and Practical Expedients. While this ASU does not change the core principles of the new revenue recognition standard, it does make the standard more operational and clarifies the guidance on assessing collectability, presenting sales taxes, measuring noncash consideration, and certain transition matters. This guidance becomes effective for us on January 1, 2018, and it is not expected to have a material impact on our financial statements and disclosures.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326):  Measurement of Credit Losses on Financial Instruments. This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that estimates credit losses on most financial instruments measured at amortized cost, such as loans, receivables, and held-to-maturity securities, using the current expected credit loss (CECL) model. Under this model, entities will estimate credit losses over the financial instrument’s entire contractual term from the date of initial recognition of that instrument. The ASU also requires incremental disclosures on how the entity developed its estimates. This guidance becomes effective for us on January 1, 2020. We are evaluating the impact of this ASU on our financial statements and disclosures.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), which is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. The new guidance specifically addresses eight classification issues:  debt prepayment or debt extinguishment costs; settlement of zero-coupon bonds; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance (COLI) policies, including bank-owned life insurance (BOLI) policies; distributions received from equity method investments; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. This guidance becomes effective for us on January 1, 2018. We are evaluating the impact of the ASU on our financial statements and disclosures.

In October 2016, the FASB issued ASU 2016-16,  Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory. The ASU requires companies to recognize the income tax consequences of an intercompany asset transfer when the transfer occurs. The amendments in this ASU do not change accounting for the pre-tax effects of intra-entity asset transfers under Topic 810, Consolidation, and do not apply to intra-entity inventory transfers. The economic consequences of intra-entity asset sales—other than inventory—will be recognized in the period in which the transaction occurs and no longer deferred. A reporting entity’s effective tax rate likely will be affected due to the immediate recognition of the seller’s taxes and buyer’s deferred taxes, particularly when the transaction has no effect on consolidated pre-tax income. This guidance becomes effective for us on January 1, 2018. We are evaluating the impact of this ASU on our financial statement disclosures.

In January 2016, the FASB issued ASU 2017-01, Business Combinations (Topic 805):  Clarifying the Definition of a Business, which provides guidance on evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The guidance is generally expected to result in fewer transactions qualifying as business combinations. Under the new guidance, an entity first determines whether substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets. If this threshold is met, the set is not considered a business. If this threshold is not met, a set cannot be considered a business unless it includes an input and a substantive process that together significantly contribute to the ability to create outputs. This guidance becomes effective for us on January 1, 2018, and is not expected to have a material impact on our financial statements and disclosures.

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Summary Of Significant Accounting And Reporting Policies

12 Months Ended

Dec. 31, 2016

Significant Accounting And Reporting Policies [Abstract]

Organization and Nature of Operations

Organization and Nature of Operations – Southwest Bancorp Inc. (“we”, “our”, “us”, or “Southwest”), incorporated in 1981, is a financial holding company headquartered in Stillwater, Oklahoma engaged primarily in commercial and retail financial services in the states of Oklahoma, Texas, Kansas, and Colorado. The accompanying consolidated financial statements include the accounts of Bank SNB, an Oklahoma banking corporation established in 1894, and the consolidated subsidiaries of Bank SNB. Bank SNB is a  wholly owned, direct subsidiary of ours.All significant intercompany balances and transactions have been eliminated in consolidation.

On October 9, 2015, we completed the acquisition of Bancshares through the merger of Bancshares with and into us. The Bancshares Merger was consummated pursuant to the Bancshares Merger Agreement dated as of May 27, 2015. The Bancshares Merger expanded our presence in the Oklahoma City metro area with five additional banking centers, increasing our total to ten. It also expanded our geographic footprint to Colorado with three full-service banking centers and one loan production office in Denver.

Basis of Presentation

Basis of Presentation – The accounting and reporting policies conform to accounting principles generally accepted in the United States and to generally accepted practices within the banking industry. The Consolidated Financial Statements include the accounts of Southwest and all other entities in which we have a controlling financial interest. All significant intercompany accounts and transactions have been eliminated in consolidation.

Certain reclassifications have been made to prior year amounts on the Consolidated Statements of Operations to conform to current year presentation.

We have evaluated subsequent events for potential recognition and disclosure through the issue date of the Consolidated Financial Statements included in this Annual Report on Form 10-K. 

Management Estimates

Management Estimates – In preparing our financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the dates shown on the Consolidated Statements of Financial Condition and revenues and expenses during the periods reported. Actual results could differ significantly from those estimates. Changes in economic conditions could affect the determination of material estimates such as the allowance for loan losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, income taxes, and the fair value of financial instruments.

Cash and Cash Equivalents

Cash and Cash Equivalents – For purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from depository institutions, and federal funds sold. Interest-bearing balances held at depository institutions were $38.8 million at December 31, 2016 and $53.2 million at December 31, 2015. Federal funds sold are sold for one-to-four day periods.

Cash paid for interest totaled $9.7 million in 2016, $7.0 million in 2015, and $6.9 million in 2014. Cash paid for income taxes totaled  $9.4 million in 2016, $7.1 million in 2015, and $4.0 million in 2014. Noncash transactions included stock issued for the acquisition of Bancshares of $21.4 million in 2015 and transfer of loans to other real estate totaling $0.5 million in 2016 and $0.3 million in 2015 and $2.2 million in 2014.

Bank SNB is required by the FRB to maintain average reserve balances. Cash and cash equivalents in the Consolidated Statements of Financial Condition include restricted amounts of $1.0 million and $7.0 million at December 31, 2016 and December 31, 2015, respectively.

Investment Securities

Investment Securities – Investments in debt and equity securities are identified as held to maturity or available for sale based on management considerations of asset/liability strategy, changes in interest rates and prepayment risk, the need to increase liquidity, and other factors, including management’s intent and ability to hold securities to maturity. We have the ability and intent to hold to maturity our investment securities classified as held to maturity. We had no investments held for trading purposes for any period presented. Under certain circumstances (including the deterioration of the issuer’s creditworthiness, a change in tax law, or statutory or regulatory requirements), we may change the investment security classification. The classifications we utilize determine the related accounting treatment for each category of investments. Available for sale securities are accounted for at fair value with unrealized gains or losses, net of taxes, excluded from operations and reported as accumulated other comprehensive income or loss. Held to maturity securities are accounted for at amortized cost. Securities with limited marketability, such as FRB stock, FHLB stock, and certain other investments, are carried at cost and included in other assets.

All investment securities are adjusted for amortization of premiums and accretion of discounts. Amortization of premiums and accretion of discounts are recorded to operations over the contractual maturity or estimated life of the individual investment using the level yield method. Gain or loss on sale of investments is based upon the specific identification method. Income earned on our investments in state and political subdivisions generally is not subject to ordinary Federal income tax.

In accordance with authoritative accounting guidance under ASC 320, Debt and Equity Securities, declines in fair value of held-to-maturity and available-for-sale securities below their cost that are deemed to be other-than-temporary are reflected in earnings as realized losses to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income. Under this guidance, we evaluate investment securities for other-than-temporary impairment on at least a quarterly basis, or more frequently when economic or market conditions warrant such an evaluation.

Federal Reserve Bank and Federal Home Loan Bank Stock

Federal Reserve Bank and Federal Home Loan Bank Stock – Bank SNB is a member of its regional FRB and FHLB system. FHLB members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional accounts. Both FRB and FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income.

Loans

Loans – Interest on loans is accrued and credited to operations based upon the principal amount outstanding. Loan origination fees and certain costs of originated loans are amortized as an adjustment to the yield over the term of the loan. Net unamortized deferred loan fees were  $2.5 million at December 31, 2016 and $1.5 million at 2015. Loans are reported at the principal balance outstanding net of the unamortized deferred loan fees.

In general, our policy for nonaccrual loans requires that accrued interest income on nonaccrual loans is written off after the loan is 90 days past due, and that subsequent interest income is recorded when cash receipts are received from the borrower. We identify past due loans based on contractual terms on a loan by loan basis. 

A loan is considered to be impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. The allowance for loan losses related to loans that are evaluated for impairment is based either on the discounted cash flows using the loan’s initial effective interest rate or on the fair value of the collateral for certain collateral dependent loans. Smaller balance, homogeneous loans, including mortgage, and consumer, are collectively evaluated for impairment. This evaluation is inherently subjective as it requires material estimates including the amounts and timing of future cash flows expected to be received on impaired loans that may be susceptible to significant change. 

Loans Held for Sale -- We originate real estate mortgage loans for either portfolio investment or sale in the secondary market. During the period of origination, real estate mortgage loans are designated as held either for investment purposes or sale. Mortgage loans held for sale are generally sold within a one-month period from loan closing at amounts determined by the investor commitment based upon the pricing of the loan.

Loans Acquired through Business Combination with Deteriorated Credit Quality

Loans Acquired through Business Combination with Deteriorated Credit Quality  – The accounting guidance of ASC 310.30, Loan and Debt Securities Acquired with Deteriorated Credit Quality,  applies to loans acquired in a business combination that have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that we will be unable to collect all contractually required payment receivables. In accordance with this guidance, these loans are initially recorded at fair value (as determined by the present value of expected future cash flows) with no valuation allowance. The difference between the undiscounted cash flows expected at acquisition and the investment in the loan, or the “accretable yield”, is recognized as interest income over the life of the loan using a method that approximates the level-yield method. Contractually required payments for interest and principal that exceed the undiscounted cash flows expected at acquisition, or the “nonaccretable difference”, are not recognized as a yield adjustment, a loss accrual, or a valuation allowance. Increases in expected cash flows subsequent to the initial investment are recognized prospectively through adjustment of the yield on the loan over its remaining life. Decreases in expected cash flows are recognized as impairments. Valuation allowances on these impaired loans reflect only losses incurred after the acquisition.

Allowance for Loan Losses

Allowance for Loan Losses – The allowance for loan losses is a reserve established through a provision for loan losses charged to operations. Loan amounts which are determined to be uncollectible are charged against this allowance, and recoveries, if any, are added to the allowance. The appropriate amount of the allowance is based on continuous review and evaluation of the loan portfolio and ongoing, quarterly assessments of the probable losses inherent in the loan portfolio. The allowance for loan losses is determined in accordance with regulatory guidelines and generally accepted accounting principles and is comprised of two primary components, specific and general. Allocations of the allowance for loan losses may be made for specific loans, but the entire allowance is available for any loan that, in management’s judgment, should be charged off. 

The specific component relates to loans that are individually classified as impaired. Loans deemed to be impaired are evaluated on an individual basis consistent with ASC 310.10.35, Receivables:  Subsequent Measurement. The amount and level of the impairment allowance is ultimately determined by management’s estimate of the amount of expected future cash flows or, if the loan is collateral dependent, on the value of the collateral, which may vary from period to period depending on changes in the financial condition of the borrower or changes in the estimated value of the collateral. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and deemed as impaired, and classified as nonperforming, potential problem, or performing restructured as applicable. Charge-offs against the allowance for impaired loans are made when and to the extent the loan is deemed uncollectible. 

The general component of the allowance is calculated based on ASC 450, Contingencies. Loans not evaluated for specific allowance are segmented into loan pools by type of loan. The commercial real estate and real estate construction pools are further segmented by the market in which the loan collateral is located. Our primary markets are Oklahoma, Texas, Kansas, and Colorado, and loans secured by real estate in those states are included in the “in-market” pool, with the remaining defaulting to the “out-of-market” pool. Estimated allowances are based on historical loss trends with adjustments factored in based on qualitative risk factors both internal and external to us. The historical loss trend is determined by loan pool and segmentation and is based on the actual loss history experienced by us over the most recent three years. The qualitative risk factors include, but are not limited to, economic and business conditions, changes in lending staff, lending policies and procedures, quality of loan review, changes in the nature and volume of the portfolios, loss and recovery trends, asset quality trends, and legal and regulatory considerations. 

Independent appraisals on real estate collateral securing loans are obtained at origination. New appraisals are obtained periodically and upon discovery of factors that may significantly affect the value of the collateral. Appraisals usually are received within 30 days of request. Results of appraisals on nonperforming and potential problem loans are reviewed promptly upon receipt and also are reviewed monthly and considered in the determination of the allowance for loan losses. We are not aware of any significant time lapses in the process that have resulted, or would result in, a significant delay in determination of a credit weakness, the identification of a loan as nonperforming, or the measurement of an impairment.

Management strives to carefully monitor credit quality and to identify loans that may become nonperforming. At any time, however, there are loans included in the portfolio that will result in losses but that have not been identified as nonperforming or potential problem loans. Because the loan portfolio contains a significant number of commercial and commercial real estate loans with relatively large balances, the unexpected deterioration of one or a few of such loans may cause a significant increase in nonperforming assets and may lead to a material increase in charge-offs and the provision for loan losses in future periods.

Liability for Credit Losses on Unfunded Loan Commitments

Liability for Credit Losses on Unfunded Loan Commitments – Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. 

The reserve for unfunded loan commitments is a liability on ourConsolidated Statements of Financial Condition in other liabilities. The reserve is computed using a methodology similar to that used to determine the allowance for loan losses, modified to take into account the probability of a drawdown on the commitment. At December 31, 2016 and 2015, the balances were  $2.5 million and $2.4 million, respectively.

Premises and Equipment

Premises and Equipment – Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are recorded on a straight-line basis over the estimated useful life of each asset. Useful lives range from 10 years to 40 years for buildings and improvements, and 3 years to 10 years for furniture, fixtures, and equipment. We review the carrying value of long-lived assets used in operations when changes in events or circumstances indicate that the assets might have become impaired. If circumstances required, the review would initially include a comparison of carrying value to the undiscounted cash flows estimated to be generated by those assets. If this review indicates that an asset is impaired, wewould record a charge to operations to reduce the asset’s carrying value to fair value, which is based on estimated discounted cash flows. Long-lived assets that are held for disposal are valued at the lower of the carrying amount or fair value less costs to sell.

Other Real Estate

Other Real Estate – Assets acquired through or instead of loan foreclosure are considered other real estate. Other real estate is initially recorded at the lesser of the carrying value or fair value less the estimated costs to sell the asset. Write-downs of carrying value required at the time of foreclosure are recorded as a charge to the allowance for loan losses. Costs related to the development of such real estate are capitalized, and costs related to holding the property are expensed. Foreclosed property is subject to periodic revaluation based upon estimates of fair value. In determining the valuation of other real estate, management obtains independent appraisals for significant properties. Valuation adjustments are provided, as necessary, by charges to operations. Profits and losses from operations or sales of foreclosed property are recognized as incurred. At December 31, 2016 and 2015, the balances of other real estate were $0.4  million and $2.3 million, respectively.

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets – Intangible assets consist of goodwill, core deposit intangibles, and loan servicing rights. Goodwill and core deposit intangibles, which generally result from a business combination, are accounted for under the provisions of ASC 350, Intangibles - Goodwill and Other, and ASC 805, Business Combinations. Loan servicing rights are accounted for under the provisions of ASC 860, Transfers and Servicing.

Goodwill represents the excess of the cost of businesses acquired over the fair value of the net assets acquired and is assigned to reporting units. Goodwill is not amortized, but is tested for impairment at least annually or more frequently if conditions indicate impairment may exist. The evaluation of possible impairment involves significant judgment based upon short-term and long-term projections of future performance of each reporting unit. 

Core deposit intangibles are amortized using an economic life method based on deposit attrition. As a result, amortization will decline over time with most of the amortization occurring during the initial years. The net book value of core deposit intangibles is adjusted for applicable branch sales, if any, and is evaluated for impairment when economic conditions indicate impairment may exist.

When real estate mortgage loans and other loans are sold with servicing retained, an intangible servicing right is initially capitalized based on estimated fair value at the point of origination with the income statement effect recorded in gains on sales of loans. The servicing rights are amortized over the period of estimated net servicing income. Impairment of loan servicing rights is assessed based on the fair value of those rights. We review the carrying value of loan servicing rights quarterly for impairment. At least annually, we obtain estimates of fair value from outside sources to corroborate the results of the valuation model. At December 31, 2016 and 2015, the fair values of loan servicing rights were $4.2 million and $3.7 million, respectively. 

Fair Value Measurements

Fair Value Measurements – ASC 820, Fair Value Measurements, defines fair value, establishes a framework for measuring fair value in accordance with generally accepted accounting principles, and expands disclosures about fair value measurements. In general, fair values of financial instruments are based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include amounts to reflect counterparty credit quality and our creditworthiness, among other things, as well as unobservable parameters. Any such valuation adjustments are applied consistently over time.

Derivative Financial Instruments

Derivative Financial Instruments – Ourderivative credit risk policy and our hedging policy permits the use of various derivative financial instruments to manage interest rate risk or to hedge specified assets and liabilities. All derivatives are recorded at fair value on our balance sheet. 

To qualify for hedge accounting, derivatives must be highly effective at reducing the risk associated with the exposure being hedged and must be designated as a hedge at the inception of the derivative contract. We consider a hedge to be highly effective if the change in fair value of the derivative hedging instrument is within 80% to 125% of the opposite change in the fair value of the hedged item attributable to the hedged risk. If derivative instruments are designated as hedges of fair values, and such hedges are highly effective, both the change in the fair value of the hedge and the hedged item are included in current earnings. Fair value adjustments related to cash flow hedges are recorded in other comprehensive income and are reclassified to earnings when the hedged transaction is reflected in earnings. Ineffective portions of hedges are reflected in earnings as they occur. Actual cash receipts and/or payments and related accruals on derivatives related to hedges are recorded as adjustments to the interest income or interest expense associated with the hedged item. During the life of the hedge, we will formally assess whether derivatives designated as hedging instruments continue to be highly effective in offsetting changes in the fair value or cash flows of hedged items. If it is determined that a hedge has ceased to be highly effective, we will discontinue hedge accounting prospectively. At such time, previous adjustments to the carrying value of the hedged item are reversed into current earnings and the derivative instrument is reclassified to a trading position recorded at fair value.

Our qualified customers have the opportunity to participate in our interest rate swap program for the purpose of managing interest rate risk on their variable rate loans with us. If we enter into such agreements with customers, then offsetting agreements are executed between us and approved dealer counterparties to minimize our market risk from changes in interest rates. The counterparty contracts are identical to customer contracts in terms of notional amounts, interest rates, and maturity dates, except for a fixed pricing spread or fee paid to us by the dealer counterparty. These interest rate swaps carry varying degrees of credit, interest rate and market or liquidity risks. The fair value of such derivative instrumentsare recognized as either non-hedge derivative assets or liabilities in the Consolidated Statements of Financial Condition. 

Loan Servicing Income

Loan Servicing Income – We earn fees for servicing real estate mortgages and other loans owned by others. These fees are generally calculated on the outstanding principal balance of the loans serviced and are recorded as income when earned.

Taxes on Income

Taxes on Income – We file consolidated income tax returns with our subsidiaries. Income tax expense is the total of the current year income tax due or refundable, adjusted for permanent differences between items reported in the financial statements and those reported for tax purposes and the change in deferred tax assets and liabilities. Under the asset and liability method, deferred tax assets and liabilities are determined on the basis of the differences between the financial statements and tax basis of assets and liabilities using the enacted tax rates in effect for the year in which the differences are expected to reverse. The net deferred tax asset is reflected as a component of other assets on the Consolidated Statements of Financial Condition.

A valuation allowance, if needed, reduces deferred tax assets to the expected amount most likely to be realized. Realization of deferred tax assets is dependent upon the generation of a sufficient level of future taxable income and recoverable taxes paid in prior years. We recognize net deferred tax assets to the extent that we believe these assets are more likely than not to be realized. In making such determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies, and results of recent operations. Management reviewed all evidence and concluded that a valuation allowance was not needed.

Earnings per Common Share

Earnings per Common Share –  ASC 260,  Earnings Per Share, provides that unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and shall be included in the computation of earnings per share pursuant to the two-class method. We have determined that our unvested restricted stock awards are participating securities. Accordingly, earnings per common share is computed using the two-class method prescribed by ASC 260. Using this method, basic earnings per common share is computed based upon net income available to common shareholders divided by the weighted average number of common shares outstanding during each period, which exclude the outstanding unvested restricted stock. Diluted earnings per share is computed using the weighted average number of common shares determined for the basic earnings per common share computation plus the dilutive effect of restricted stock awards using the treasury stock method. Restricted stock awards, where the exercise price was greater than the average market price of common shares, were not included in the computation of earnings per diluted share as they would have been anti-dilutive. At December 31, 2016 and 2015, there were 6,573 and 38,145 anti-dilutive restricted stock awards outstanding, respectively. 

A reconciliation of the weighted-average common shares used in the calculations of basic and diluted earnings per common share for the reported periods is provided at“Note 15:  Earnings per Common Share” on page 86.

Share-Based Compensation

Share-Based Compensation – The Southwest Bancorp, Inc. 2008 Stock Based Award Plan (the “2008 Stock Plan”), provides selected key employees with the opportunity to acquire common stock through stock options or restricted stock awards. Compensation cost is recognized based on the fair value of these awards at the date of grant. The exercise price of all options granted under the 2008 Stock Plan is the fair market value on the grant date, while the market price of our common stock at the date of grant is used for restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period. Depending upon terms of the stock option agreements, stock options generally become exercisable on an annual basis and expire from five to ten years after the date of grant.

The 2008 Stock Plan authorized awards for up to 800,000 shares of our common stock over its ten-year term.

Comprehensive Income

Comprehensive Income – Our comprehensive income (net income plus all other changes in shareholders’ equity from non-equity sources) consists of our net income, the after tax effect of changes in the net unrealized gains (losses) in our available for sale securities, reclassification adjustments for net (gains) losses, and changes in the accumulated gain (loss) on the effective cash flow hedging instrument.

Simmons First National Corporation (Pending Merger)–On December 14, 2016, we entered into a Merger Agreement with Simmons, an Arkansas corporation, pursuant to which, and subject to its terms and conditions, Simmons will acquire all of our outstanding capital stock for $95.0 million in cash and 7,250,000 shares of Simmons’s common stock, representing an aggregate Merger consideration of approximately $564.4 million (based on Simmons’ common stock closing price as of December 13, 2016), subject to potential adjustments.

Simmons conducts banking operations through 150 financial centers located in communities throughout Arkansas, Kansas, Missouri and Tennessee. As of December 31, 2016, Simmons had $8.4 billion in total assets, $5.6 billion in loans and $6.7 billion in deposits. The completion of the Merger is subject to, among other things, regulatory and shareholder approval and other customary closing conditions.

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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2016

Acquisitions [Abstract]

Reconciliation Of Cash Received From The Acquisition

(Dollars in thousands)
Fair value of assets acquired	$	301,499
Liabilities assumed		(259,718)
Net assets acquired		41,781
Stock issued as consideration		(21,366)
Cash acquired		(32,699)
Cash received in business combination, net of cash paid	$	(12,284)

Schedule Of Assets Acquired And Liabilities Assumed

	First Commercial Bancshares, Inc.
		Acquired from Bancshares		Fair Value Adjustments		Fair Value
(Dollars in thousands)
Assets, Acquired
Cash and due from banks	$	5,874	$	-	$	5,874
Interest-bearing deposits with other banks		17,196		-		17,196
Federal funds sold		9,629		-		9,629
Cash and cash equivalents		32,699		-		32,699
Investment securities		34,762		(184)		34,578
Loans		210,223		(7,790)		202,433
Allowance for loan losses		4,298		(4,298)		-
Total loans receivable		205,925		(3,492)		202,433
Bank premises and equipment, net		4,241		1,341		5,582
Cash value of life insurance		7,153		-		7,153
Accrued interest receivable		790		-		790
Deferred tax asset		1,650		15		1,665
Core deposit intangible		55		2,646		2,701
Other assets		1,644		-		1,644
Total assets acquired	$	288,919	$	326	$	289,245
Liabilities, Assumed
Deposits
Demand and non-interest bearing	$	101,464	$	-	$	101,464
Savings and interest-bearing transaction accounts		59,356		-		59,356
Time deposits		84,410		-		84,410
Total Deposits		245,230		-		245,230
Other borrowings		7,180		-		7,180
Accrued interest payable and other liabilities		1,833		320		2,153
Subordinated debentures		5,155		-		5,155
Total liabilities assumed		259,398		320		259,718
Equity
Equity		31,158		(31,158)		-
Total equity assumed		31,158		(31,158)		-
Total liabilities and equity assumed	$	290,556	$	(30,838)	$	259,718
Net assets acquired						29,527
Purchase price						41,781
Goodwill					$	12,254

Pro Forma Condensed Financial Information

		For the year ended December 31,
		2015(1)		2014
(Dollars in thousands except per share data)
Interest income	$	84,399	$	84,710
Interest expense		8,049		8,236
Net interest income		76,350		76,474
Provision for loan losses		(3,080)		(6,398)
Non-interest income		16,292		21,439
Non-interest expense (2)		68,860		67,779
Income before taxes		26,862		36,532
Income taxes		9,601		13,646
Net income		17,261		22,886
Earnings allocated to participating securities		(258)		(253)
Numerator for earnings per common share	$	17,003	$	22,633
Earnings per share:
Basic	$	0.90	$	1.10
Diluted		0.89		1.09
Basic weighted average shares outstanding		18,975,450		20,631,471
Diluted weighted average shares outstanding		19,129,533		20,774,348

(1)  Subsequent to the Bancshares Merger date, activity related to Bancshares contributed pre-tax revenues of $2.9 million and incurred pre-tax expenses of $1.2 million, resulting in $1.1 million total contribution to our net income. We incurred pre-tax non-recurring expenses totaling $1.9 million, including: $0.5 million in personnel related expenses, $0.4 million in data processing expenses, $0.5 million in legal, accounting and investment banker expenses, and $0.5 million in marketing and other expenses.

(2) The 2015 pro forma non-interest expense is adjusted to exclude $2.5 million of pre-tax non-recurring expenses incurred by Bancshares prior to the Bancshares Merger date attributed to the following: $0.7 million in employee related expenses, $0.4 million in legal expenses, and $1.4 million to discount a loan pursuant to a provision of the Bancshares Merger Agreement. 

Changes In The Carrying Amounts And Accretable Yields For ASC 310.30 Loans

	For the year ended December 31,
	2016				2015
			Carrying				Carrying
	Accretable		amount		Accretable		amount
(Dollars in thousands)	Yield		of loans		Yield		of loans
Balance at beginning of period	$	807	$	7,914	$	540	$	4,971
Acquisition		-		-		(11)		4,396
Payments received		-		(2,964)		1		(1,814)
Transfers to other real estate / repossessed assets		-		-		541		-
Net charge-offs		(11)		(318)		-		(81)
Net reclassifications to / from nonaccretable amount		-		-		240		-
Accretion		(166)		-		(504)		442
Balance at end of period	$	630	$	4,632	$	807	$	7,914

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Investment Securities (Tables)

12 Months Ended

Dec. 31, 2016

Investment Securities [Abstract]

Summary Of Amortized Cost And Fair Values Of Investment Securities

	Amortized		Gross Unrealized				Fair
(Dollars in thousands)	Cost		Gains		Losses		Value
At December 31, 2016
Held to Maturity:
Obligations of state and political subdivisions	$	10,443	$	242	$	(8)	$	10,677
Total	$	10,443	$	242	$	(8)	$	10,677
Available for Sale:
Federal agency securities	$	69,691	$	201	$	(198)	$	69,694
Obligations of state and political subdivisions		46,105		461		(191)		46,375
Residential mortgage-backed securities		282,035		573		(1,966)		280,642
Asset-backed securities		9,265		-		(88)		9,177
Corporate debt		20,017		385		(72)		20,330
Total	$	427,113	$	1,620	$	(2,515)	$	426,218
At December 31, 2015
Held to Maturity:
Obligations of state and political subdivisions	$	11,797	$	488	$	(3)	$	12,282
Total	$	11,797	$	488	$	(3)	$	12,282
Available for Sale:
Federal agency securities	$	78,363	$	220	$	(373)	$	78,210
Obligations of state and political subdivisions		47,079		620		(134)		47,565
Residential mortgage-backed securities		240,804		936		(1,852)		239,888
Asset-backed securities		9,639		-		(224)		9,415
Corporate debt		25,251		148		(146)		25,253
Total	$	401,136	$	1,924	$	(2,729)	$	400,331

Amortized Cost And Approximate Fair Value Of Investment Securities By Maturity Date

	Available for Sale				Held to Maturity
	Amortized		Fair		Amortized		Fair
(Dollars in thousands)	Cost		Value		Cost		Value
One year or less	$	7,702	$	7,747	$	-	$	-
More than one year through five years		309,028		308,505		9,298		9,535
More than five years through ten years		76,505		75,976		1,145		1,142
More than ten years		33,878		33,990		-		-
Total	$	427,113	$	426,218	$	10,443	$	10,677

Summary Of Sales Of Available For Sale Securities

(Dollars in thousands)		2016		2015		2014
Proceeds from sales	$	43,593	$	162	$	2,545
Gross realized gains		348		162		1,120
Gross realized losses		(54)		-		-

Summary Of Securities With Gross Unrealized Losses And Their Fair Values

				Continuous Unrealized
		Amortized cost of		Loss Existing for:				Fair value of
	Number of	securities with		Less Than		More Than		securities with
(Dollars in thousands)	Securities	unrealized losses		12 Months		12 Months		unrealized losses
At December 31, 2016
Held to Maturity:
Obligations of state and political subdivisions	7	$	1,987	$	(8)	$	-	$	1,979
	7	$	1,987	$	(8)	$	-	$	1,979
Available for Sale:
Federal agency securities	13	$	34,734	$	(111)	$	(87)	$	34,536
Obligations of state and political subdivisions	36		18,283		(145)		(46)		18,092
Residential mortgage-backed securities	89		225,986		(1,618)		(348)		224,020
Asset-backed securities	3		9,265		-		(88)		9,177
Other Securities	2		5,005		-		(72)		4,933
Total	143	$	293,273	$	(1,874)	$	(641)	$	290,758
At December 31, 2015
Held to Maturity:
Obligations of state and political subdivisions	1	$	1,677	$	-	$	(3)	$	1,674
	1	$	1,677	$	-	$	(3)	$	1,674
Available for Sale:
Federal agency securities	14	$	42,438	$	(138)	$	(235)	$	42,065
Obligations of state and political subdivisions	14		11,765		(57)		(77)		11,631
Residential mortgage-backed securities	87		175,043		(1,247)		(605)		173,191
Asset-backed securities	3		9,639		(115)		(109)		9,415
Other Securities	6		14,987		(75)		(71)		14,841
Total	124	$	253,872	$	(1,632)	$	(1,097)	$	251,143

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Loans And Allowance For Loan Losses (Tables)

12 Months Ended

Dec. 31, 2016

Loans And Allowance For Loan Losses [Abstract]

Southwest's Loan Classifications

(Dollars in thousands)	At December 31, 2016		At December 31, 2015
Real estate mortgage:
Commercial	$	882,071	$	938,462
One-to-four family residential		199,123		161,958
Real estate construction:
Commercial		199,113		129,070
One-to-four family residential		20,946		21,337
Commercial		556,248		507,173
Installment and consumer		19,631		21,429
Total loans, including held for sale		1,877,132		1,779,429
Less allowance for loan losses		(27,546)		(26,106)
Total loans, net	$	1,849,586	$	1,753,323

Recorded Investment In Loans On Nonaccrual Status

	At December 31,
(Dollars in thousands)	2016		2015
Real estate mortgage:
Commercial	$	6,471	$	3,543
One-to-four family residential		2,766		1,729
Real estate construction:
Commercial		522		562
One-to-four family residential		448		448
Commercial		5,949		13,491
Other consumer		111		85
Total nonaccrual loans	$	16,267	$	19,858

Age Analysis Of Past Due Loans

			90 days and								Recorded loans
	30-89 days		greater		Total past				Total		> 90 days and
(Dollars in thousands)	past due		past due		due		Current		loans		accruing
At December 31, 2016
Real estate mortgage:
Commercial	$	24	$	6,472	$	6,496	$	875,575	$	882,071	$	-
One-to-four family residential		631		2,903		3,534		195,589		199,123		138
Real estate construction:
Commercial		-		522		522		198,591		199,113		-
One-to-four family residential		-		448		448		20,498		20,946		-
Commercial		2,530		6,142		8,672		547,576		556,248		193
Other		359		123		482		19,149		19,631		12
Total	$	3,544	$	16,610	$	20,154	$	1,856,978	$	1,877,132	$	343
At December 31, 2015
Real estate mortgage:
Commercial	$	272	$	3,992	$	4,264	$	934,198	$	938,462	$	449
One-to-four family residential		549		1,777		2,326		159,632		161,958		48
Real estate construction:
Commercial		-		493		493		128,577		129,070		-
One-to-four family residential		-		517		517		20,820		21,337		-
Commercial		278		13,491		13,769		493,404		507,173		-
Other		65		88		153		21,276		21,429		3
Total	$	1,164	$	20,358	$	21,522	$	1,757,907	$	1,779,429	$	500

Impaired Loans

	With No Specific Allowance				With A Specific Allowance
			Unpaid				Unpaid
	Recorded		Principal		Recorded		Principal		Related
(Dollars in thousands)	Investment		Balance		Investment		Balance		Allowance
At December 31, 2016
Commercial real estate	$	1,536	$	3,057	$	6,053	$	6,529	$	2,219
One-to-four family residential		1,188		1,535		1,593		1,698		63
Real estate construction		762		926		207		245		40
Commercial		1,032		2,861		4,963		7,480		1,346
Other		111		115		-		-		-
Total	$	4,629	$	8,494	$	12,816	$	15,952	$	3,668
At December 31, 2015
Commercial real estate	$	12,166	$	15,747	$	10,940	$	10,940	$	1,575
One-to-four family residential		1,688		2,195		185		186		11
Real estate construction		1,078		1,327		-		-		-
Commercial		4,095		5,430		9,844		15,968		2,526
Other		85		94		-		-		-
Total	$	19,112	$	24,793	$	20,969	$	27,094	$	4,112

Average Recorded Investment And Interest Income Recognized On Impaired Loans

	As of and for the year ended December 31,
	2016				2015				2014
	Average				Average				Average
	Recorded		Interest		Recorded		Interest		Recorded		Interest
(Dollars in thousands)	Investment		Income		Investment		Income		Investment		Income
Commercial real estate	$	7,394	$	750	$	25,044	$	970	$	30,257	$	968
One-to-four family residential		3,448		15		2,323		1		2,764		1
Real estate construction		1,050		14		997		-		222		-
Commercial		6,905		96		8,527		215		7,718		68
Other		52		3		51		-		16		-
Total	$	18,848	$	878	$	36,942	$	1,186	$	40,977	$	1,037

Troubled Debt Restructured Loans Outstanding

	At December 31, 2016				At December 31, 2015
(Dollars in thousands)	Accruing		Nonaccrual		Accruing		Nonaccrual
Commercial real estate	$	1,118	$	475	$	19,563	$	448
One-to-four family residential		15		46		13		48
Commercial		45		3,323		659		5,796
Total	$	1,178	$	3,844	$	20,235	$	6,292

Loans Modified As Troubled Debt Restructurings

	For the year ended December 31,
	2016				2015
	Number of		Recorded		Number of		Recorded
(Dollars in thousands)	Modifications		Investment		Modifications		Investment
Commercial real estate		1	$	164		-	$	-
Commercial		1		24		1		5,511
Total		2	$	188		1	$	5,511

Classification Of Risk Category Of Loans, By Classes

	Commercial		1-4 Family		Real Estate
(Dollars in thousands)	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2016
Grade:
Pass	$	857,290	$	192,395	$	210,780	$	498,039	$	19,518	$	1,778,022
Special Mention		4,479		1,983		7,720		24,639		-		38,821
Substandard		20,302		4,745		1,559		33,175		113		59,894
Doubtful		-		-		-		395		-		395
Total	$	882,071	$	199,123	$	220,059	$	556,248	$	19,631	$	1,877,132
At December 31, 2015
Grade:
Pass	$	902,034	$	157,912	$	148,811	$	480,928	$	21,284	$	1,710,969
Special Mention		5,916		29		586		2,941		50		9,522
Substandard		30,512		4,017		1,010		18,848		95		54,482
Doubtful		-		-		-		4,456		-		4,456
Total	$	938,462	$	161,958	$	150,407	$	507,173	$	21,429	$	1,779,429

By Balance In The Allowance For Loan Losses And The Recorded Investment In Loans Portfolio Classification Disaggregated On The Basis Of Impairment Evaluation Method

	Commercial		1-4 Family		Real Estate
(Dollars in thousands)	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2016
Balance at beginning of period	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Loans charged-off		(193)		(134)		-		(6,148)		(522)		(6,997)
Recoveries		400		77		-		3,079		112		3,668
Provision (credit) for loan losses		(416)		520		969		3,162		534		4,769
Balance at end of period	$	12,507	$	1,163	$	3,502	$	10,058	$	316	$	27,546
Allowance for loan losses ending balance:
Individually evaluated for impairment	$	2,219	$	63	$	-	$	1,346	$	-	$	3,628
Collectively evaluated for impairment		10,288		1,100		3,462		8,712		316		23,878
Acquired with deteriorated credit quality		-		-		40		-		-		40
Total ending allowance balance	$	12,507	$	1,163	$	3,502	$	10,058	$	316	$	27,546
Loans receivable ending balance:
Individually evaluated for impairment	$	6,606	$	1,766	$	390	$	5,357	$	-	$	14,119
Collectively evaluated for impairment		872,997		196,123		219,015		550,615		19,631		1,858,381
Acquired with deteriorated credit quality		2,468		1,234		654		276		-		4,632
Total ending loans balance	$	882,071	$	199,123	$	220,059	$	556,248	$	19,631	$	1,877,132

	Commercial		1-4 Family		Real Estate
	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2015
Balance at beginning of period	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Loans charged-off		(489)		(20)		(21)		(628)		(193)		(1,351)
Recoveries		282		558		47		1,479		205		2,571
Provision (credit) for loan losses		(755)		(550)		(1,652)		(500)		(109)		(3,566)
Balance at end of period	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Allowance for loan losses ending balances:
Individually evaluated for impairment	$	1,575	$	11	$	-	$	2,526	$	-	$	4,112
Collectively evaluated for impairment		11,141		689		2,533		7,439		192		21,994
Acquired with deteriorated credit quality		-		-		-		-		-		-
Total ending allowance balance	$	12,716	$	700	$	2,533	$	9,965	$	192	$	26,106
Loans receivable ending balance:
Individually evaluated for impairment	$	20,332	$	695	$	391	$	13,396	$	47	$	34,861
Collectively evaluated for impairment		913,242		159,672		149,344		493,026		21,370		1,736,654
Acquired with deteriorated credit quality		4,888		1,591		672		751		12		7,914
Total ending loans balance	$	938,462	$	161,958	$	150,407	$	507,173	$	21,429	$	1,779,429

	Commercial		1-4 Family		Real Estate
	Real Estate		Residential		Construction		Commercial		Other		Total
At December 31, 2014
Balance at beginning of period	$	18,854	$	850	$	5,523	$	10,985	$	451	$	36,663
Loans charged-off		(1,400)		(289)		(655)		(4,014)		(558)		(6,916)
Recoveries		3,733		213		-		1,119		264		5,329
Provision (credit) for loan losses		(7,509)		(62)		(709)		1,524		132		(6,624)
Balance at end of period	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Allowance for loan losses ending balances:
Individually evaluated for impairment	$	2,047	$	-	$	-	$	1,822	$	-	$	3,869
Collectively evaluated for impairment		11,631		712		4,159		7,792		289		24,583
Acquired with deteriorated credit quality		-		-		-		-		-		-
Total ending allowance balance	$	13,678	$	712	$	4,159	$	9,614	$	289	$	28,452
Loans receivable ending balance:
Individually evaluated for impairment	$	23,907	$	538	$	104	$	13,560	$	2	$	38,111
Collectively evaluated for impairment		725,635		75,598		196,905		336,818		21,953		1,356,909
Acquired with deteriorated credit quality		3,429		1,395		114		32		1		4,971
Total ending loans balance	$	752,971	$	77,531	$	197,123	$	350,410	$	21,956	$	1,399,991

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Premises And Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Premises And Equipment [Abstract]

Premises And Equipment

	At December 31,
(Dollars in thousands)	2016		2015
Land	$	6,630	$	6,630
Buildings and improvements		25,861		25,219
Furniture, fixtures, and equipment		32,409		30,813
Construction/remodeling in progress		38		965
		64,938		63,627
Accumulated depreciation and amortization		(42,130)		(39,808)
Total premises and equipment, net	$	22,808	$	23,819

Future Minimum Annual Rental Payments

(Dollars in thousands)
2017	$	2,723
2018		2,277
2019		2,091
2020		2,016
2021		1,333
Thereafter		2,822
Total	$	13,262

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Goodwill And Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill And Other Intangible Assets [Abstract]

Gross Carrying Amount Of Other Intangible Assets And Accumulated Amortization

	At December 31,
(Dollars in thousands)	2016		2015
Core deposit premiums	$	6,119	$	6,119
Less accumulated amortization		(3,820)		(3,225)
Core deposit premiums, net		2,299		2,894
Loan servicing rights		14,710		13,635
Less accumulated amortization		(11,219)		(9,914)
Loan servicing rights, net		3,491		3,721
Other intangible assets, net	$	5,790	$	6,615

Future Amortization Expense For Other Intangibles Assets

(Dollars in thousands)	Core Deposit Premiums		Loan Servicing Rights		Total
2017	$	451	$	654	$	1,105
2018		391		571		962
2019		386		478		864
2020		386		396		782
2021		386		323		709
Thereafter		299		1,069		1,368
	$	2,299	$	3,491	$	5,790

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Measurements [Abstract]

Summary Of Financial Assets Measured At Fair Value On A Recurring Basis

			Fair Value Measurement at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
(Dollars in thousands)	Total		(Level 1)		(Level 2)		(Level 3)
At December 31, 2016
Available for sale securities:
Federal agency securities		69,694		-		69,694		-
Obligations of state and political subdivisions		46,375		-		46,375		-
Residential mortgage-backed securities		280,642		-		280,642		-
Asset-backed securities		9,177		-		9,177		-
Corporate debt		20,330		213		20,117		-
Derivative asset		1,235				1,235
Derivative liability		(1,890)		-		(1,890)		-
Total	$	425,563	$	213	$	425,350	$	-
At December 31, 2015
Available for sale securities:
Federal agency securities		78,211		-		78,211		-
Obligations of state and political subdivisions		47,564		-		47,564		-
Residential mortgage-backed securities		239,888		-		239,888		-
Asset-backed securities		9,415		-		9,415		-
Corporate debt		25,253		137		25,116		-
Derivative asset		1,793				1,793		-
Derivative liability		(3,163)		-		(3,163)		-
Total	$	398,961	$	137	$	398,824	$	-

Asset Measured At Fair Value On A Nonrecurring Basis

			Fair Value Measurements Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
(Dollars in thousands)	Total		(Level 1)		(Level 2)		(Level 3)
At December 31, 2016
Impaired loans at fair value :
Commercial real estate	$	6,053	$	-	$		$	6,053
One-to-four family residential		1,593		-		-		1,593
Real estate construction		207		-		-		207
Commercial		5,357		-				5,357
Loans held for sale:
One-to-four family residential		4,386		-		4,386		-
Total	$	17,596	$	-	$	4,386	$	13,210
At December 31, 2015
Impaired loans at fair value :
Commercial real estate	$	11,182	$	-	$		$	11,182
One-to-four family residential		185		-		-		185
Real estate construction		390		-		-		390
Commercial		9,845		-				9,845
Loans held for sale:
One-to-four family residential		7,453		-		7,453		-
Other real estate		2,274		-		-		2,274
Mortgage loan servicing rights		3,721		-		3,721		-
Total	$	35,050	$	-	$	11,174	$	23,876

Carrying Values And Estimated Fair Values Of Financial Instruments Segregated By The Level Of The Valuation Inputs

	At December 31, 2016				At December 31, 2015
	Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Values		Values		Values		Values
Financial assets:
Level 2 inputs:
Cash and cash equivalents	$	75,650	$	75,650	$	78,129	$	78,129
Securities held to maturity		10,443		10,677		11,797		12,282
Accrued interest receivable		6,194		6,194		5,767		5,767
Mortgage loan servicing rights		3,491		4,159		3,721		3,721
Bank-owned life insurance		28,575		28,575		27,676		27,676
Investments included in other assets		14,627		14,627		10,383		10,383
Level 3 inputs:
Total loans, net of allowance		1,849,586		1,839,960		1,753,323		1,728,114
Financial liabilities:
Level 2 inputs:
Deposits		1,946,018		1,897,927		1,884,105		1,780,954
Accrued interest payable		1,132		1,132		867		867
Other liabilities		9,516		9,516		10,314		10,314
Other borrowings		183,814		183,926		110,927		112,149
Subordinated debentures		46,393		46,393		51,548		51,548

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Deposits (Tables)

12 Months Ended

Dec. 31, 2016

Deposits [Abstract]

Schedule Of Deposits

(Dollars in thousands)	2016		2015
Noninterest-bearing demand	$	551,709	$	596,494
Interest-bearing demand		152,656		151,015
Money market accounts		567,058		534,357
Savings accounts		56,410		56,333
Time deposits of $100,000 or more		360,307		311,538
Other time deposits		257,878		234,368
Total deposits	$	1,946,018	$	1,884,105

Scheduled Time Deposits

(Dollars in thousands)
2017	$465,324
2018	115,862
2019	22,025
2020	8,372
2021	6,575
Thereafter	27
Total time deposits	$618,185

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Borrowed Funds (Tables)

12 Months Ended

Dec. 31, 2016

Borrowed Funds [Abstract]

Schedule Of Borrowed Funds

	2016						2015
(Dollars in thousands)	Balance at December 31		Average Balance		Weighted Average Rate		Balance at December 31		Average Balance		Weighted Average Rate
Securities sold under repurchase
agreements	$	45,814	$	45,812	0.05	%	$	37,273	$	44,218	0.07	%
Federal Home Loan Bank advances		138,000		97,569	1.31			73,654		28,289	3.11
	$	183,814					$	110,927

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Trust Preferred Securities and Subordinated Debentures (Tables)

12 Months Ended

Dec. 31, 2016

Subordinated Debentures [Abstract]

Schedule of Trust Preferred Securities

At December 31, 2016
(Dollars in thousands)		Subordinated Debentures Owed to Trusts		Trust Preferred Securities of the Trusts	Rates	Final Maturity Date
OKSB Statutory Trust I	$	20,619	$	20,000	4.10%	June 26, 2033
SBI Capital Trust II		25,774		25,000	3.73%	October 7, 2033
	$	46,393	$	45,000

At December 31, 2015
(Dollars in thousands)		Subordinated Debentures Owed to Trusts		Trust Preferred Securities of the Trusts	Rates	Final Maturity Date
OKSB Statutory Trust I	$	20,619	$	20,000	3.70%	June 26, 2033
SBI Capital Trust II		25,774		25,000	3.17%	October 7, 2033
FCBI Statutory Trust I		5,155		5,000	3.33%	September 4, 2033
	$	51,548	$	50,000

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Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2016

Derivative Instruments [Abstract]

Non-Hedge Derivative Assets and Liabilities

	As of December 31,2016				As of December 31,2015
(Dollars in thousands)	Notional		Fair Value		Notional		Fair Value
Non-hedge derivative assets	$	123,953	$	1,235	$	101,629	$	1,793
Non-hedge derivative liabilities		123,953		1,235		101,629		1,793

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Taxes On Income (Tables)

12 Months Ended

Dec. 31, 2016

Taxes On Income [Abstract]

Components of taxes on income

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Current tax (benefit) expense:
Federal	$	8,809	$	7,534	$	3,251
State		173		143		186
Deferred tax expense (benefit):
Federal		44		1,126		7,970
State		783		990		1,210
Taxes on income	$	9,809	$	9,793	$	12,617

Reconciliation from the expected tax exense (benefit) to consolidated effective income tax expense (benefit)

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Computed tax (benefit) expense at statutory rates	$	9,630	$	9,520	$	11,777
Increase (decrease) in income taxes resulting from:
Benefit of income not subject to U.S. Federal income tax		(632)		(621)		(209)
Expenses not deductible for U.S. Federal income tax		216		220		129
State income taxes, net of Federal income tax benefit		621		736		907
Other		(26)		(62)		13
Taxes on income	$	9,809	$	9,793	$	12,617

Temporary differences that give rise to the deferred tax assets

		At December 31,
(Dollars in thousands)		2016		2015
Deferred tax assets:
	Provision for loan losses	$	10,976	$	10,291
	Net operating loss carryforward		380		858
	Write-downs on other real estate		-		57
	Nonaccrual loan interest		510		603
	Deferred compensation & profit sharing accrual		782		711
	Investments		306		311
	Section 597 gain - FDIC-assisted acquisition		388		472
	Accrued expenses		859		1,013
	Loan purchase accounting adjustment		1,392		2,725
	Stock-based compensation		805		629
	Other		659		(2)
Total deferred tax assets			17,057		17,668
Deferred tax liabilities:
	Accumulated depreciation		(2,966)		(2,877)
	Amortizable assets		(933)		(1,089)
	Dividend - Equity vs. Cost Method		(471)		(393)
	Prepaid expenses		(110)		(109)
	FHLB stock dividends		(65)		(132)
Total deferred tax liabilities			(4,545)		(4,600)
	Deferred taxes payable on investment
	securities available for sale		643		885
Net deferred tax asset		$	13,155	$	13,953

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Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Computation Of Basic And Diluted Earnings Per Common Share

(Dollars in thousands, except earnings per share data)	2016		2015		2014
Numerator:
Net income	$	17,704	$	17,407	$	21,030
Earnings allocated to participating securities		(279)		(258)		(253)
Numerator for earnings per common share	$	17,425	$	17,149	$	20,777
Denominator:
Denominator for basic earnings per common share		18,660,951		18,975,450		19,417,486
Dilutive effect of stock compensation		205,916		148,059		142,877
Denominator for diluted earnings per common share		18,866,867		19,123,509		19,560,363
Earnings per common share:
Basic	$	0.93	$	0.90	$	1.07
Diluted	$	0.92	$	0.90	$	1.06

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Capital Requirements And Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2016

Capital Requirements And Regulatory Matters [Abstract]

Southwest’s and Bank SNB’s Actual Capital Amounts And Ratios

A summary of actual capital amounts and ratios as of December 31, 2016 are presented below.

					Required to be Considered				For Capital
	Actual				Well-Capitalized				Adequacy Purposes
(Dollars in thousands)	Amount		Ratio			Amount	Ratio			Amount	Ratio
As of December 31, 2016:
Total CET1 Capital (to risk-weighted assets)
Southwest	$	272,882	12.36	%	$	143,488	6.50	%	$	99,338	4.50	%
Bank SNB		301,023	13.66			143,189	6.50			99,131	4.50
Total Capital (to risk-weighted assets)
Southwest		345,597	15.66			220,751	10.00			176,601	8.00
Bank SNB		328,681	14.92			220,291	10.00			176,232	8.00
Tier 1 Capital (to risk-weighted assets)
Southwest		317,882	14.40			176,601	8.00			132,450	6.00
Bank SNB		301,023	13.66			176,232	8.00			132,174	6.00
Tier 1 Leverage (to average assets)
Southwest		317,882	13.02			122,046	5.00			97,637	4.00
Bank SNB		301,023	12.37			121,686	5.00			97,349	4.00

A summary of actual capital amounts and ratios as of December 31, 2015 are presented below.

					Required to be Considered				For Capital
	Actual				Well-Capitalized				Adequacy Purposes
(Dollars in thousands)	Amount		Ratio			Amount	Ratio			Amount	Ratio
As of December 31, 2015:
Total CET1 Capital (to risk-weighted assets)
Southwest	$	282,737	13.21	%	$	139,122	6.50	%	$	96,316	4.50	%
Bank SNB		291,125	13.65			138,637	6.50			95,980	4.50
Total Capital (to risk-weighted assets)
Southwest		359,300	16.79			214,034	10.00			171,228	8.00
Bank SNB		317,865	14.90			213,288	10.00			170,631	8.00
Tier 1 Capital (to risk-weighted assets)
Southwest		332,468	15.53			171,228	8.00			128,421	6.00
Bank SNB		291,125	13.65			170,631	8.00			127,973	6.00
Tier 1 Leverage (to average assets)
Southwest		332,468	14.41			115,371	5.00			92,297	4.00
Bank SNB		291,125	12.66			114,939	5.00			91,951	4.00

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Off-Balance-Sheet Arrangments, Commitments, Guarantees And Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies [Abstract]

Summary Of Off-Balance-Sheet Financial Instruments

	At December 31,
(Dollars in thousands)	2016		2015
Commitments to extend commercial and real estate mortgage credit	$	429,383	$	446,412
Standby and commercial letters of credit		7,160		6,595
Total	$	436,543	$	453,007

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Operating Segments (Tables)

12 Months Ended

Dec. 31, 2016

Operating Segments [Abstract]

Financial Results By Operating Segment

For the year ended December 31, 2016
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	50,590	$	22,697	$	6,694	$	(538)	$	79,443
Provision for loan losses		2,007		973		1,786		3		4,769
Noninterest income		11,576		1,273		1,202		2,034		16,085
Noninterest expenses		40,083		13,734		5,275		4,154		63,246
Income (loss) before taxes		20,076		9,263		835		(2,661)		27,513
Taxes on income		7,157		3,303		298		(949)		9,809
Net income (loss)	$	12,919	$	5,960	$	537	$	(1,712)	$	17,704
* Includes externally generated revenue of $3.0 million, primarily from investing services, and an internally generated loss of $1.5 million from the funds management unit.
Total loans at period end	$	1,095,930	$	636,643	$	144,559	$	-	$	1,877,132
Total assets at period end		1,138,969		633,328		143,558		559,537		2,475,392
Total goodwill at period end		12,525		1,020		-		-		13,545
Total deposits at period end		1,330,176		195,603		147,823		272,416		1,946,018

For the year ended December 31, 2015
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	42,019	$	21,168	$	6,277	$	(2,047)	$	67,417
Provision (credit) for loan losses		(2,068)		(632)		(868)		2		(3,566)
Noninterest income		10,134		1,485		1,473		1,365		14,457
Noninterest expenses		33,136		14,324		6,152		4,628		58,240
Income (loss) before taxes		21,085		8,961		2,466		(5,312)		27,200
Taxes on income		7,591		3,227		888		(1,913)		9,793
Net income (loss)	$	13,494	$	5,734	$	1,578	$	(3,399)	$	17,407
* Includes externally generated revenue of $2.1 million, primarily from investing services, and an internally generated loss of $2.8 million from the funds management unit.
Total loans at period end	$	1,048,473	$	580,476	$	150,480	$	-	$	1,779,429
Total assets at period end		1,098,735		578,749		149,847		529,691		2,357,022
Total goodwill at period end		12,447		1,020		-		-		13,467
Total deposits at period end		1,374,227		209,146		119,313		181,419		1,884,105

For the year ended December 31, 2014
	Oklahoma		Texas		Kansas		Other		Total
(Dollars in thousands)	Banking		Banking		Banking		Operations*		Company
Net interest income	$	38,846	$	19,187	$	9,469	$	(2,498)	$	65,004
Provision (credit) for loan losses		(2,561)		(3,640)		(425)		2		(6,624)
Noninterest income		9,030		1,594		1,576		6,731		18,931
Noninterest expenses		31,363		13,387		8,616		3,546		56,912
Income before taxes		19,074		11,034		2,854		685		33,647
Taxes on income		7,152		4,138		1,070		257		12,617
Net income	$	11,922	$	6,896	$	1,784	$	428	$	21,030
* Includes externally generated revenue of $7.6 million, primarily from investing services, and an internally generated loss of $3.3 million from the funds management unit.
Total loans at period end	$	793,262	$	460,680	$	146,043	$	6	$	1,399,991
Total assets at period end		805,704		458,489		147,256		530,585		1,942,034
Total goodwill at period end		194		1,020		-		-		1,214
Total deposits at period end		1,113,477		224,634		110,901		84,987		1,533,999

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Parent Company Condensed Financial Information (Tables)

12 Months Ended

Dec. 31, 2016

Parent Company Condensed Financial Information [Abstract]

Parent Company Statements of Financial Condition

	At December 31,
(Dollars in thousands)	2016		2015
Statements of Financial Condition
Assets:
Cash and cash equivalents	$	12,105	$	30,469
Investment in subsidiary banks		315,181		305,064
Investments in other subsidiaries		2,084		8,444
Other assets		5,499		6,393
Total	$	334,869	$	350,370
Liabilities:
Subordinated debentures		46,393		51,548
Other liabilities		1,847		2,724
Shareholders' Equity:
Common stock and related accounts		286,629		296,098
Total	$	334,869	$	350,370

Parent Company Statements of Operations

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Statements of Operations
Income:
Cash dividends from subsidiaries	$	10,052	$	20,046	$	18,045
Noninterest income		25		45		34
Investment income		-		20		1,337
Other operating income		15		25		3
Security gains		-		163		-
Total income		10,092		20,299		19,419
Expense:
Interest on subordinated debentures		1,740		1,566		1,505
Noninterest expense		2,191		1,756		1,317
Total expense		3,931		3,322		2,822
Total income before taxes and equity in
undistributed income of subsidiaries		6,161		16,977		16,597
Taxes on income		(1,377)		(1,167)		(582)
Income before equity in undistributed
income of subsidiaries		7,538		18,144		17,179
Equity in undistributed income (loss) of subsidiaries		10,166		(737)		3,851
Net income	$	17,704	$	17,407	$	21,030

Parent Company Statements of Cash Flows

	For the Year Ended December 31,
(Dollars in thousands)	2016		2015		2014
Statements of Cash Flows
Operating activities:
Net income	$	17,704	$	17,407	$	21,030
Equity in undistributed (income) loss of subsidiaries		(10,166)		737		(3,851)
Other, net		6,823		2,295		2,937
Net cash provided by operating activities		14,361		20,439		20,116
Investing activities:
Available for sale securities:
Purchases		-		-		(1,121)
Sales / Maturities		-		750		2,540
Outlays for business acquisitions		-		(4,697)		-
Other, net		-		(155)		-
Net cash provided by (used in) investing activities		-		(4,102)		1,419
Financing activities:
Net proceeds from issuance of common stock		1,239		682		1,386
Purchases of treasury stock		(22,721)		(8,624)		(10,302)
Common stock dividend		(6,088)		(4,607)		(3,132)
Other, net		(5,155)		5,155		-
Net cash used in financing activities		(32,725)		(7,394)		(12,048)
Net increase (decrease) in cash and cash equivalents		(18,364)		8,943		9,487
Cash and cash equivalents,
Beginning of year		30,469		21,526		12,039
End of year	$	12,105	$	30,469	$	21,526

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Summary Of Significant Accounting And Reporting Policies (Details) $ in Thousands		12 Months Ended
	Oct. 09, 2015 USD ($)	Dec. 31, 2016 USD ($) entity item shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares
Number Of Total Branches | item		1
Interest-bearing balances held at depository institutions		$ 38,800	$ 53,200
Interest paid		9,700	7,000	$ 6,900
Income taxes paid		9,400	7,100	4,000
Stock issued for Bancshares acquisition	$ 21,400		21,366
Other real estate		350	2,274
Transfer to Other Real Estate		500	300	2,200
Restricted cash and cash equivalents		$ 1,000	7,000
Threshold Period Past Due for Write-off of Financing Receivable		90 days
Net unamortized deferred loan fees		$ 2,500	1,500
Assets, Total		2,475,392	2,357,022	1,214
Deposits, Total		$ 1,946,018	1,884,105	$ 1,533,999
Number Of Days For Independent Appraisals On Real Estate Collateral		30 days
Reserve For Unfunded Loan Commitments		$ 2,500	$ 2,400
Antidilutive options to purchase common shares | shares		6,573	38,145	0
Fair value of loan servicing rights		$ 4,200	$ 3,700
Simmons First National Corporation [Member]
Number Of Total Branches | entity		150
Assets, Total		$ 8,400
Deposits, Total		6,700
Loans and Leases Receivable, Net Reported Amount		$ 5,600
Minimum [Member]
Percentage change in fair value to be considered highly effective		80.00%
Stock option expiration period after grant		5 years
Minimum [Member] | Building and Building Improvements [Member]
Premises and equipmet, useful life		10 years
Minimum [Member] | Furniture, Fixtures and Equipment [Member]
Premises and equipmet, useful life		3 years
Maximum [Member]
Percentage change in fair value to be considered highly effective		125.00%
Stock option expiration period after grant		10 years
Maximum [Member] | Building and Building Improvements [Member]
Premises and equipmet, useful life		40 years
Maximum [Member] | Furniture, Fixtures and Equipment [Member]
Premises and equipmet, useful life		10 years
2008 Stock Based Award Plan [Member]
Stock Plan Term		10 years
Common stock reserved for issuance | shares		800,000

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Acquisitions (Narrative) (Details) $ in Thousands			12 Months Ended
	Dec. 14, 2016 USD ($) shares	Oct. 09, 2015 USD ($) item shares	Dec. 31, 2016 USD ($) entity item	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Business Acquisition [Line Items]
Number of total branches | item			1
Business Combination, Consideration Transferred	$ 564,400
Assets, Total			$ 2,475,392	$ 2,357,022	$ 1,214
Deposits, Total			1,946,018	1,884,105	1,533,999
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	7,250,000
Payments to Acquire Businesses, Gross	$ 95,000
Business Combination, Fair Value Of Assets Acquired		$ 301,500
Goodwill		12,300	$ 13,545	$ 13,467	$ 1,942,034
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits		245,200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 2,700
Effective tax rate			35.70%	36.00%	37.50%
Oklahoma City [Member]
Business Acquisition [Line Items]
Number of branches acquired | entity			5
Number of total branches		10	10
Denver [Member]
Business Acquisition [Line Items]
Number of branches acquired | entity			3
Number of total branches | entity			1
Parent Company [Member]
Business Acquisition [Line Items]
Assets, Total			$ 334,869	$ 350,370
Bancshares [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 41,781
Business Acquisition, Percentage of Voting Interests Acquired		51.00%
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares		1,213,985
Business Acquisition, Percentage of Cash		49.00%
Payments to Acquire Businesses, Gross		$ 20,400
Business Combination, Fair Value Of Assets Acquired		301,499
Loans from merger		202,433
Goodwill		12,254
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits		245,230
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 2,701
Loans purchased evaluated in conjunction with the acquisition				200,000
Loans purchased evaluated in conjunction with the acquisition, discount				4,500
Loans, purchase credit impaired				7,800
Loans and debt securities acquired with deteriorated credit quality, discount				$ 3,300
Effective tax rate				36.00%
Bancshares [Member] | Oklahoma City [Member]
Business Acquisition [Line Items]
Number of branches acquired | item		5
Bancshares [Member] | Denver [Member]
Business Acquisition [Line Items]
Number of branches acquired | item		3

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Acquisitions (Reconciliation Of Cash Received From The Acquisition) (Details) $ in Thousands	Oct. 09, 2015 USD ($)
Business Acquisition [Line Items]
Fair value of assets acquired	$ 301,500
Bancshares [Member]
Business Acquisition [Line Items]
Fair value of assets acquired	301,499
Liabilities assumed	(259,718)
Net assets acquired	41,781
Stock issued as consideration	(21,366)
Cash acquired	(32,699)
Cash received in business combination, net of cash paid	$ (12,284)

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Acquisitions (Schedule Of Assets Acquired And Liabilities Assumed ) (Details) - USD ($) $ in Thousands	Dec. 14, 2016	Oct. 09, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Loans		$ 202,400
Core deposit intangible		2,700
Total Deposits		245,200
Purchase price	$ 564,400
Goodwill		12,300	$ 13,545	$ 13,467	$ 1,942,034
Bancshares [Member]
Business Acquisition [Line Items]
Cash and due from banks		5,874
Interest-bearing deposits with other banks		17,196
Federal funds sold		9,629
Cash and cash equivalents		32,699
Investment securities		34,578
Loans		202,433
Total loans receivable		202,433
Bank premises and equipment, net		5,582
Cash value of life insurance		7,153
Accrued interest receivable		790
Deferred tax asset		1,665
Core deposit intangible		2,701
Other assets		1,644
Total assets acquired		289,245
Demand and non-interest bearing		101,464
Savings and interest-bearing transaction accounts		59,356
Time deposits		84,410
Total Deposits		245,230
Other borrowings		7,180
Accrued interest payable and other liabilities		2,153
Subordinated debentures		5,155
Total liabilities assumed		259,718
Total liabilities and equity assumed		259,718
Net assets acquired		29,527
Purchase price		41,781
Goodwill		12,254
Bancshares [Member] | Acquired From Bancshares [Member]
Business Acquisition [Line Items]
Cash and due from banks		5,874
Interest-bearing deposits with other banks		17,196
Federal funds sold		9,629
Cash and cash equivalents		32,699
Investment securities		34,762
Loans		210,223
Allowance for loan losses		4,298
Total loans receivable		205,925
Bank premises and equipment, net		4,241
Cash value of life insurance		7,153
Accrued interest receivable		790
Deferred tax asset		1,650
Core deposit intangible		55
Other assets		1,644
Total assets acquired		288,919
Demand and non-interest bearing		101,464
Savings and interest-bearing transaction accounts		59,356
Time deposits		84,410
Total Deposits		245,230
Other borrowings		7,180
Accrued interest payable and other liabilities		1,833
Subordinated debentures		5,155
Total liabilities assumed		259,398
Equity		31,158
Total equity assumed		31,158
Total liabilities and equity assumed		290,556
Bancshares [Member] | Fair Value Adjustments [Member]
Business Acquisition [Line Items]
Investment securities		(184)
Loans		(7,790)
Allowance for loan losses		(4,298)
Total loans receivable		(3,492)
Bank premises and equipment, net		1,341
Deferred tax asset		15
Core deposit intangible		2,646
Total assets acquired		326
Accrued interest payable and other liabilities		320
Total liabilities assumed		320
Equity		(31,158)
Total equity assumed		(31,158)
Total liabilities and equity assumed		$ (30,838)

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Acquisitions (Pro Forma Condensed Financial Information) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	12 Months Ended
		Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Business Acquisition [Line Items]
Net income			$ 17,704	$ 17,407		$ 21,030
Parent Company [Member]
Business Acquisition [Line Items]
Net income			$ 17,704	17,407		21,030
Bancshares [Member]
Business Acquisition [Line Items]
Interest Income				84,399	[1]	84,710
Interest expense				8,049	[1]	8,236
Net interest income				76,350	[1]	76,474
Provision for loan losses				(3,080)	[1]	(6,398)
Non-interest income				16,292	[1]	21,439
Non-interest expense	[2]			68,860	[1]	67,779
Income before taxes				26,862	[1]	36,532
Income taxes				9,601	[1]	13,646
Net income				17,261	[1]	22,886
Earnings allocated to participating securities				(258)	[1]	(253)
Numerator for earnings per common share				$ 17,003	[1]	$ 22,633
Earnings per share: Basic				$ 0.90	[1]	$ 1.10
Earnings per share: Diluted				$ 0.89	[1]	$ 1.09
Basic weighted average shares outstanding				18,975,450	[1]	20,631,471
Diluted weighted average shares outstanding				19,129,533	[1]	20,774,348
Revenues		$ 2,900
Costs and Expenses		1,200
Net income		1,100
Other Nonrecurring Expense		1,900
Nonrecurring Personnel Related Expense		500
Nonrecurring Data Processing Expenses		400
Nonrecurring Legal, Accounting And Investment Banker Expenses		500
Nonrecurring Marketing And Other Expenses		$ 500
Pro Forma Non-Recurring Expense				$ 2,500
Pro Forma Non-Recurring Expense, Employee Related Expense				700
Pro Forma Non-Recurring Expense, Legal Expenses				400
Pro Forma Non-Recurring Expense, Discount Loan Provision				$ 1,400

[1] Subsequent to the Bancshares Merger date, activity related to Bancshares contributed pre-tax revenues of $2.9 million and incurred pre-tax expenses of $1.2 million, resulting in $1.1 million total contribution to our net income. We incurred pre-tax non-recurring expenses totaling $1.9 million, including: $0.5 million in personnel related expenses, $0.4 million in data processing expenses, $0.5 million in legal, accounting and investment banker expenses, and $0.5 million in marketing and other expenses.

[2] The 2015 pro forma non-interest expense is adjusted to exclude $2.5 million of pre-tax non-recurring expenses incurred by Bancshares prior to the Bancshares Merger date attributed to the following: $0.7 million in employee related expenses, $0.4 million in legal expenses, and $1.4 million to discount a loan pursuant to a provision of the Bancshares Merger Agreement.

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Acquisitions (Changes In Carryng Amounts And Accretable Yields) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Acquisitions [Abstract]
Balance at beginning of period, Accretable Yield	$ 807	$ 540
Acquisition, Accretable Yield		(11)
Payments received, Accretable Yield		1
Transfers to other real estate/ repossessed assets, Accretable Yield		541
Net charge-offs, Accretable Yield	(11)
Net reclassifications to / from nonaccretable amount, Accretable Yield		240
Accretion, Accretable yield	(166)	(504)
Balance at end of period, Accretable Yield	630	807
Balance at beginning of period, Carrying amount of loans	7,914	4,971
Acquisition, Carrying amount of loans		4,396
Payments Received, Carrying amount of loans	(2,964)	(1,814)
Net charged-offs, Carrying amount of loans	(318)	(81)
Accretion, Carrying amount of loans		442
Balance at end of period, Carrying amount of loans	$ 4,632	$ 7,914

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Disposals (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2016
Disposals [Abstract]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 4.4
Loans in disposal	27.9
Deposits in disposal	$ 130.6
Restructuring and Related Cost, Incurred Cost		$ 0.4

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Investment Securities (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Investment Securities [Abstract]
Total investments carried at cost	$ 14.6	$ 10.4
Available for sale debt securities amortized cost pledged as collateral	$ 199.0	$ 174.0

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Investment Securities (Summary Of Amortized Cost And Fair Values Of Investment Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Held to Maturity	$ 10,443	$ 11,797
Gross Unrealized Gains, Held-to-maturity	242	488
Gross Unrealized Losses, Held to Maturity	(8)	(3)
Fair Value, Held to Maturity	10,677	12,282
Amortized Cost, Available for Sale	427,113	401,136
Gross Unrealized Gains, Available for Sale	1,620	1,924
Gross Unrealized Losses, Available for Sale	(2,515)	(2,729)
Available-for-sale Securities	426,218	400,331
Federal Agency Securities [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Available for Sale	69,691	78,363
Gross Unrealized Gains, Available for Sale	201	220
Gross Unrealized Losses, Available for Sale	(198)	(373)
Available-for-sale Securities	69,694	78,210
Obligations Of State And Political Subdivisions [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Held to Maturity	10,443	11,797
Gross Unrealized Gains, Held-to-maturity	242	488
Gross Unrealized Losses, Held to Maturity	(8)	(3)
Fair Value, Held to Maturity	10,677	12,282
Amortized Cost, Available for Sale	46,105	47,079
Gross Unrealized Gains, Available for Sale	461	620
Gross Unrealized Losses, Available for Sale	(191)	(134)
Available-for-sale Securities	46,375	47,565
Residential Mortgage-Backed Securities [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Available for Sale	282,035	240,804
Gross Unrealized Gains, Available for Sale	573	936
Gross Unrealized Losses, Available for Sale	(1,966)	(1,852)
Available-for-sale Securities	280,642	239,888
Asset-Backed Securities [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Available for Sale	9,265	9,639
Gross Unrealized Losses, Available for Sale	(88)	(224)
Available-for-sale Securities	9,177	9,415
Corporate Debt [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Available for Sale	20,017	25,251
Gross Unrealized Gains, Available for Sale	385	148
Gross Unrealized Losses, Available for Sale	(72)	(146)
Available-for-sale Securities	$ 20,330	$ 25,253

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Investment Securities (Amortized Cost And Approximate Fair Value Of Investment Securities By Maturity Date) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Amortized cost and approximate fair value [Abstract]
One year or less, Amortized cost, Available for Sale	$ 7,702
One year or less, Fair Value, Available for Sale	7,747
More than one year through five years, Amortized Cost, Available for Sale	309,028
More than one year through five years, Fair Value, Available for Sale	308,505
More than one year through five years, Amortized Cost, Held to Maturity	9,298
More than one year through five years, Fair Value, Held to Maturity	9,535
More than five years through ten years, Amortized Cost, Available for Sale	76,505
More than five years through ten years, Fair Value, Available for Sale	75,976
More than five years through ten years, Amortized Cost, Held to Maturity	1,145
More than five years through ten years, Fair Value, Held to Maturity	1,142
More than ten years, Amortized Cost, Available for Sale	33,878
More than ten years, Fair Value, Available for Sale	33,990
Total, Amortized Cost, Available for Sale	427,113
Total, Fair Value, Available for Sale	426,218
Held-to-maturity Securities, Total	10,443	$ 11,797
Fair Value, Held to Maturity	$ 10,677	$ 12,282

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Investment Securities (Summary Of Sales Of Available For Sale Securities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Investment Securities [Abstract]
Proceeds from sales	$ 43,593	$ 162	$ 2,545
Gross realized gains	348	$ 162	$ 1,120
Gross realized losses	$ (54)

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Investment Securities (Summary Of Securities With Gross Unrealized Losses And Their Fair Values) (Details) $ in Thousands	Dec. 31, 2016 USD ($) security	Dec. 31, 2015 USD ($) security
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	143	124
Number of Securities, Held to Maturity | security	7	1
Amortized cost of securities with unrealized losses, Available for Sale	$ 293,273	$ 253,872
Amortized cost of securities with unrealized losses, Held to Maturity	1,987	1,677
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(1,874)	(1,632)
Continuous Unrealized Loss Existing for Less Than 12 Months, Held to Maturity	(8)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(641)	(1,097)
Continuous Unrealized Loss Existing for More Than 12 Months, Held to Maturity		(3)
Fair value of securities with unrealized losses, Available for Sale	290,758	251,143
Fair value of securities with unrealized losses, Held to Maturity	$ 1,979	$ 1,674
Federal Agency Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	13	14
Amortized cost of securities with unrealized losses, Available for Sale	$ 34,734	$ 42,438
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(111)	(138)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(87)	(235)
Fair value of securities with unrealized losses, Available for Sale	$ 34,536	$ 42,065
Obligations Of State And Political Subdivisions [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	36	14
Number of Securities, Held to Maturity | security	7
Amortized cost of securities with unrealized losses, Available for Sale	$ 18,283	$ 11,765
Amortized cost of securities with unrealized losses, Held to Maturity	1,987
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(145)	(57)
Continuous Unrealized Loss Existing for Less Than 12 Months, Held to Maturity	(8)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(46)	(77)
Fair value of securities with unrealized losses, Available for Sale	18,092	$ 11,631
Fair value of securities with unrealized losses, Held to Maturity	$ 1,979
Residential Mortgage-Backed Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	89	87
Amortized cost of securities with unrealized losses, Available for Sale	$ 225,986	$ 175,043
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(1,618)	(1,247)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(348)	(605)
Fair value of securities with unrealized losses, Available for Sale	$ 224,020	$ 173,191
Asset-Backed Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	3	3
Amortized cost of securities with unrealized losses, Available for Sale	$ 9,265	$ 9,639
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale		(115)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(88)	(109)
Fair value of securities with unrealized losses, Available for Sale	$ 9,177	$ 9,415
Other Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	2	6
Amortized cost of securities with unrealized losses, Available for Sale	$ 5,005	$ 14,987
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale		(75)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(72)	(71)
Fair value of securities with unrealized losses, Available for Sale	$ 4,933	$ 14,841

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Loans And Allowance For Loan Losses (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days for independent appraisals on real estate collateral	30 days
Loans held for sale	$ 4,400	$ 7,500
Period to sell loans from the date of closing	1 month
Accrued additional interest income	$ 1,000	800	$ 700
Cumulative charge-offs against noncovered nonaccrual loans	3,300	6,100
Interest income recognized on troubled debt restructurings	$ 900	1,200	$ 1,000
Troubled debt restructuring default period	90 days
Troubled debt restructuring Period	12 months
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 0
Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans to individuals and businesses	$ 608,600
Percentage of loans to individuals and businesses	32.00%
Healthcare [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans to individuals and businesses	$ 423,800
Percentage of loans to individuals and businesses	23.00%
Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal of mortgage loans serviced for others	$ 460,100	$ 432,300

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Loans And Allowance For Loan Losses (Southwest's Loan Classifications) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 1,877,132	$ 1,779,429
Less: Allowance for loan losses	(27,546)	(26,106)
Total loans, net	1,849,586	1,753,323
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	556,248	507,173
Installment And Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	19,631	21,429
Commercial Real Estate [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	882,071	938,462
Commercial Real Estate [Member] | Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	199,113	129,070
One-To-Four Family Residential [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	199,123	161,958
One-To-Four Family Residential [Member] | Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 20,946	$ 21,337

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Loans And Allowance For Loan Losses (Recorded Investment In Loans On Nonaccrual Status) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 16,267	$ 19,858
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	6,471	3,543
Commercial Real Estate Portfolio Segment [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	2,766	1,729
Residential Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	522	562
Residential Portfolio Segment [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	448	448
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	5,949	13,491
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 111	$ 85

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Loans And Allowance For Loan Losses (Age Analysis Of Past Due Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 20,154	$ 21,522
Current	1,856,978	1,757,907
Loans receivable	1,877,132	1,779,429	$ 1,399,991
Recorded loans > 90 days and accruing	343	500
30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,544	1,164
90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	16,610	20,358
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	882,071	938,462	752,971
One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	199,123	161,958	77,531
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	6,496	4,264
Current	875,575	934,198
Loans receivable	882,071	938,462
Recorded loans > 90 days and accruing		449
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	24	272
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	6,472	3,992
Commercial Real Estate Portfolio Segment [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,534	2,326
Current	195,589	159,632
Loans receivable	199,123	161,958
Recorded loans > 90 days and accruing	138	48
Commercial Real Estate Portfolio Segment [Member] | One-To-Four Family Residential [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	631	549
Commercial Real Estate Portfolio Segment [Member] | One-To-Four Family Residential [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,903	1,777
Residential Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	522	493
Current	198,591	128,577
Loans receivable	199,113	129,070
Residential Portfolio Segment [Member] | Commercial Real Estate [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	522	493
Residential Portfolio Segment [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	448	517
Current	20,498	20,820
Loans receivable	20,946	21,337
Residential Portfolio Segment [Member] | One-To-Four Family Residential [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	448	517
Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	220,059	150,407	197,123
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	8,672	13,769
Current	547,576	493,404
Loans receivable	556,248	507,173	$ 350,410
Recorded loans > 90 days and accruing	193
Commercial Portfolio Segment [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,530	278
Commercial Portfolio Segment [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	6,142	13,491
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	482	153
Current	19,149	21,276
Loans receivable	19,631	21,429
Recorded loans > 90 days and accruing	12	3
Consumer Portfolio Segment [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	359	65
Consumer Portfolio Segment [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 123	$ 88

XML

Loans And Allowance For Loan Losses (Impaired Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	$ 4,629	$ 19,112
With No Specific Allowance Unpaid Principal Balance	8,494	24,793
With A Specific Allowance Recorded Investment	12,816	20,969
With A Specific Allowance Unpaid Principal Balance	15,952	27,094
With A Specific Allowance Related Allowance	3,668	4,112
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	1,536	12,166
With No Specific Allowance Unpaid Principal Balance	3,057	15,747
With A Specific Allowance Recorded Investment	6,053	10,940
With A Specific Allowance Unpaid Principal Balance	6,529	10,940
With A Specific Allowance Related Allowance	2,219	1,575
One-To-Four Family Residential [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	1,188	1,688
With No Specific Allowance Unpaid Principal Balance	1,535	2,195
With A Specific Allowance Recorded Investment	1,593	185
With A Specific Allowance Unpaid Principal Balance	1,698	186
With A Specific Allowance Related Allowance	63	11
Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	762	1,078
With No Specific Allowance Unpaid Principal Balance	926	1,327
With A Specific Allowance Recorded Investment	207
With A Specific Allowance Unpaid Principal Balance	245
With A Specific Allowance Related Allowance	40
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	1,032	4,095
With No Specific Allowance Unpaid Principal Balance	2,861	5,430
With A Specific Allowance Recorded Investment	4,963	9,844
With A Specific Allowance Unpaid Principal Balance	7,480	15,968
With A Specific Allowance Related Allowance	1,346	2,526
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	111	85
With No Specific Allowance Unpaid Principal Balance	$ 115	$ 94

XML

Loans And Allowance For Loan Losses (Average Recorded Investment And Interest Income Recognized On Impaired Loans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 18,848	$ 36,942	$ 40,977
Interest Income	878	1,186	1,037
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	7,394	25,044	30,257
Interest Income	750	970	968
One-To-Four Family Residential [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	3,448	2,323	2,764
Interest Income	15	1	1
Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,050	997	222
Interest Income	14
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	6,905	8,527	7,718
Interest Income	96	215	68
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	52	$ 51	$ 16
Interest Income	$ 3

XML

Loans And Allowance For Loan Losses (Troubled Debt Restructured Loans Outstanding) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Accruing	$ 1,178	$ 20,235
Nonaccrual	3,844	6,292
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Accruing	45	659
Nonaccrual	3,323	5,796
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	1,118	19,563
Nonaccrual	475	448
One-To-Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Accruing	15	13
Nonaccrual	$ 46	$ 48

XML

Loans And Allowance For Loan Losses (Loans Modified As Troubled Debt Restructurings) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) contract	Dec. 31, 2015 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract	2	1
Recorded Investment | $	$ 188	$ 5,511
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract	1
Recorded Investment | $	$ 164
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract	1	1
Recorded Investment | $	$ 24	$ 5,511

XML

Loans And Allowance For Loan Losses (Recorded Investment And The Number Of Loans Modified As Troubled Debt Restructuring Which Subsequently Defaulted) (Details)	24 Months Ended
	Dec. 31, 2016 loan
Loans And Allowance For Loan Losses [Abstract]
Number of Contracts	0

XML

Loans And Allowance For Loan Losses (Classification Of Risk Category Of Loans, By Classes) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 1,877,132	$ 1,779,429	$ 1,399,991
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,778,022	1,710,969
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	38,821	9,522
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	59,894	54,482
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	395	4,456
Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	220,059	150,407	197,123
Real Estate Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	210,780	148,811
Real Estate Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	7,720	586
Real Estate Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,559	1,010
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	556,248	507,173	350,410
Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	498,039	480,928
Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	24,639	2,941
Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	33,175	18,848
Commercial Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	395	4,456
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	19,631	21,429	21,956
Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	19,518	21,284
Other [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable		50
Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	113	95
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	882,071	938,462	752,971
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	857,290	902,034
Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,479	5,916
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	20,302	30,512
Commercial Real Estate [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	882,071	938,462
Commercial Real Estate [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	199,113	129,070
One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	199,123	161,958	$ 77,531
One-To-Four Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	192,395	157,912
One-To-Four Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,983	29
One-To-Four Family Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,745	4,017
One-To-Four Family Residential [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	199,123	161,958
One-To-Four Family Residential [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 20,946	$ 21,337

XML

Loans And Allowance For Loan Losses (By Balance In The Allowance For Loan Losses And The Recorded Investment In Loans Portfolio Classification Disaggregated On The Basis Of Impairment Evaluation Method) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period	$ 26,106	$ 28,452	$ 36,663
Loans charged-off	(6,997)	(1,351)	(6,916)
Recoveries	3,668	2,571	5,329
Provision (credit) for loan losses	4,769	(3,566)	(6,624)
Balance at end of period	27,546	26,106	28,452
Individually evaluated for impairment				$ 3,628	$ 4,112	$ 3,869
Collectively evaluated for impairment				23,878	21,994	24,583
Total ending allowance balance	26,106	28,452	36,663	27,546	26,106	28,452
Individually evaluated for impairment				14,119	34,861	38,111
Collectively evaluated for impairment				1,858,381	1,736,654	1,356,909
Acquired With Deteriorated Credit Quality				4,632	7,914	4,971
Total ending loans balance				1,877,132	1,779,429	1,399,991
Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at end of period	40
Total ending allowance balance	40			40
Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period	2,533	4,159	5,523
Loans charged-off		(21)	(655)
Recoveries		47
Provision (credit) for loan losses	969	(1,652)	(709)
Balance at end of period	3,502	2,533	4,159
Collectively evaluated for impairment				3,462	2,533	4,159
Total ending allowance balance	2,533	4,159	5,523	3,502	2,533	4,159
Individually evaluated for impairment				390	391	104
Collectively evaluated for impairment				219,015	149,344	196,905
Acquired With Deteriorated Credit Quality				654	672	114
Total ending loans balance				220,059	150,407	197,123
Real Estate Construction [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at end of period	40
Total ending allowance balance	40			40
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period	9,965	9,614	10,985
Loans charged-off	(6,148)	(628)	(4,014)
Recoveries	3,079	1,479	1,119
Provision (credit) for loan losses	3,162	(500)	1,524
Balance at end of period	10,058	9,965	9,614
Individually evaluated for impairment				1,346	2,526	1,822
Collectively evaluated for impairment				8,712	7,439	7,792
Total ending allowance balance	9,965	9,614	10,985	10,058	9,965	9,614
Individually evaluated for impairment				5,357	13,396	13,560
Collectively evaluated for impairment				550,615	493,026	336,818
Acquired With Deteriorated Credit Quality				276	751	32
Total ending loans balance				556,248	507,173	350,410
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance				19,631	21,429
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period	192	289	451
Loans charged-off	(522)	(193)	(558)
Recoveries	112	205	264
Provision (credit) for loan losses	534	(109)	132
Balance at end of period	316	192	289
Collectively evaluated for impairment				316	192	289
Total ending allowance balance	192	289	451	316	192	289
Individually evaluated for impairment					47	2
Collectively evaluated for impairment				19,631	21,370	21,953
Acquired With Deteriorated Credit Quality					12	1
Total ending loans balance				19,631	21,429	21,956
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period	12,716	13,678	18,854
Loans charged-off	(193)	(489)	(1,400)
Recoveries	400	282	3,733
Provision (credit) for loan losses	(416)	(755)	(7,509)
Balance at end of period	12,507	12,716	13,678
Individually evaluated for impairment				2,219	1,575	2,047
Collectively evaluated for impairment				10,288	11,141	11,631
Total ending allowance balance	12,716	13,678	18,854	12,507	12,716	13,678
Individually evaluated for impairment				6,606	20,332	23,907
Collectively evaluated for impairment				872,997	913,242	725,635
Acquired With Deteriorated Credit Quality				2,468	4,888	3,429
Total ending loans balance				882,071	938,462	752,971
Commercial Real Estate [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance				882,071	938,462
Commercial Real Estate [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance				199,113	129,070
One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period	700	712	850
Loans charged-off	(134)	(20)	(289)
Recoveries	77	558	213
Provision (credit) for loan losses	520	(550)	(62)
Balance at end of period	1,163	700	712
Individually evaluated for impairment				63	11
Collectively evaluated for impairment				1,100	689	712
Total ending allowance balance	$ 700	$ 712	$ 850	1,163	700	712
Individually evaluated for impairment				1,766	695	538
Collectively evaluated for impairment				196,123	159,672	75,598
Acquired With Deteriorated Credit Quality				1,234	1,591	1,395
Total ending loans balance				199,123	161,958	$ 77,531
One-To-Four Family Residential [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance				199,123	161,958
One-To-Four Family Residential [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance				$ 20,946	$ 21,337

XML

Premises And Equipment (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Premises And Equipment [Abstract]
Depreciation of premises and equipment	$ 2.8	$ 2.5	$ 2.8
Total rental expense	$ 3.6	$ 2.9	$ 2.4

XML

Premises And Equipment (Premises And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Premises And Equipment [Abstract]
Land	$ 6,630	$ 6,630
Buildings and improvements	25,861	25,219
Furniture, fixtures, and equipment	32,409	30,813
Construction/remodeling in progress	38	965
Total premises and equipment, gross	64,938	63,627
Accumulated depreciation and amortization	(42,130)	(39,808)
Total premises and equipment, net	$ 22,808	$ 23,819

XML

Premises And Equipment (Future Minimum Annual Rental Payments) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Premises And Equipment [Abstract]
2017	$ 2,723
2018	2,277
2019	2,091
2020	2,016
2021	1,333
Thereafter	2,822
Total	$ 13,262

XML

Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Oct. 09, 2015
Goodwill impairment		$ 0	$ 0	$ 0
Goodwill		$ 13,545,000	13,467,000	1,942,034,000	$ 12,300,000
Weighted average amortization period for Core Deposit Intangibles		10 years
Impairment on Core Deposit Premiums		$ 0	0	0
Servicing Asset at Amortized Cost		3,500,000
Fair value of loan servicing rights		4,200,000	3,700,000
Mortgage Servicing Rights (MSR) Impairment (Recovery)	$ 600,000		100,000
Oklahoma Banking [Member]
Goodwill		12,525,000		805,704,000	$ 12,300,000
Texas Banking [Member]
Goodwill		1,020,000		458,489,000
Core Deposits [Member]
Amortization		600,000	300,000	400,000
Servicing Contracts [Member]
Amortization		$ 700,000	$ 600,000	$ 400,000

XML

Goodwill and Other Intangible Assets (Gross Carrying Amount of Other Intangible Assets and Accumulated Amortization) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Intangible assets, net	$ 5,790	$ 6,615
Core Deposits [Member]
Finite-Lived Intangible Assets, Gross	6,119	6,119
Finite-Lived Intangible Assets, Accumulated Amortization	(3,820)	(3,225)
Other Intangible assets, net	2,299	2,894
Servicing Contracts [Member]
Finite-Lived Intangible Assets, Gross	14,710	13,635
Finite-Lived Intangible Assets, Accumulated Amortization	(11,219)	(9,914)
Other Intangible assets, net	$ 3,491	$ 3,721

XML

Goodwill and Other Intangible Assets (Estimated Aggregate Future Amortization Expense for Other Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
2017	$ 1,105
2018	962
2019	864
2020	782
2021	709
Thereafter	1,368
Other Intangible assets, net	5,790	$ 6,615
Core Deposits [Member]
2017	451
2018	391
2019	386
2020	386
2021	386
Thereafter	299
Other Intangible assets, net	2,299	2,894
Servicing Contracts [Member]
2017	654
2018	571
2019	478
2020	396
2021	323
Thereafter	1,069
Other Intangible assets, net	$ 3,491	$ 3,721

XML

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Fair value of loan servicing rights		$ 3.7	$ 4.2
Mortgage Servicing Rights (MSR) Impairment (Recovery)	$ 0.6	0.1
Noncovered [Member]
Finite-Lived Intangible Assets [Line Items]
Noncovered impaired loans carrying amount		25.9	19.7
Noncovered impaired loans measured at fair value		21.6	13.2
Noncovered impaired loans life to date impairment		4.3	$ 6.5
Impairment charge of other real estate assets		$ 0.1

XML

Fair Value Measurements (Summary Of Financial Assets Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	$ 426,218	$ 400,331
Derivative asset	1,235	1,793
Derivative liability	(1,235)	(1,793)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	1,235	1,793
Total Assets at Fair Value on a recurring basis	425,563	398,961
Fair Value, Measurements, Recurring [Member] | Federal Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	69,694	78,211
Fair Value, Measurements, Recurring [Member] | Obligations Of State And Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	46,375	47,564
Fair Value, Measurements, Recurring [Member] | Residential Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	280,642	239,888
Fair Value, Measurements, Recurring [Member] | Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	9,177	9,415
Fair Value, Measurements, Recurring [Member] | Corporate Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	20,330	25,253
Fair Value, Measurements, Recurring [Member] | Derivative Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(1,890)	(3,163)
Fair Value, Measurements, Recurring [Member] | Level 1 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets at Fair Value on a recurring basis	213	137
Fair Value, Measurements, Recurring [Member] | Level 1 Inputs [Member] | Corporate Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	213	137
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	1,235	1,793
Total Assets at Fair Value on a recurring basis	425,350	398,824
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Federal Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	69,694	78,211
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Obligations Of State And Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	46,375	47,564
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Residential Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	280,642	239,888
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	9,177	9,415
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Corporate Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	20,117	25,116
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Derivative Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	$ (1,890)	$ (3,163)

XML

Fair Value Measurements (Asset Measured At Fair Value On A Nonrecurring Basis) (Details) - Fair Value Measurements Nonrecurring [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Noncovered impaired loans at fair value:
Assets fair value, Total	$ 17,596	$ 35,050
Commercial Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	6,053	11,182
One-To-Four Family Residential [Member]
Noncovered impaired loans at fair value:
Loans held for sale	4,386	7,453
Assets fair value, Total	1,593	185
Real Estate Construction [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	207	390
Commercial [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	5,357	9,845
Noncovered Other Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total		2,274
Mortgage Loan Servicing Rights [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total		3,721
Level 2 Inputs [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	4,386	11,174
Level 2 Inputs [Member] | One-To-Four Family Residential [Member]
Noncovered impaired loans at fair value:
Loans held for sale	4,386	7,453
Level 2 Inputs [Member] | Mortgage Loan Servicing Rights [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total		3,721
Level 3 Inputs [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	13,210	23,876
Level 3 Inputs [Member] | Commercial Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	6,053	11,182
Level 3 Inputs [Member] | One-To-Four Family Residential [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	1,593	185
Level 3 Inputs [Member] | Real Estate Construction [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	207	390
Level 3 Inputs [Member] | Commercial [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	$ 5,357	9,845
Level 3 Inputs [Member] | Noncovered Other Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total		$ 2,274

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Fair Value Measurements (Carrying Values And Estimated Fair Values Of Financial Instruments Segregated By The Level Of The Valuation Inputs) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financial Assets:
Held to maturity securities, fair value	$ 10,677	$ 12,282
Accrued interest receivable	6,194	5,767
Servicing Asset at Amortized Cost	3,500
Mortgage loan servicing rights	4,200
Bank owned life insurance	28,575	27,676
Derivative Assets	1,235	1,793
Financial Liabilities:
Accrued interest payable	1,132	867
Derivative instrument	1,235	1,793
Other borrowings	183,814	110,927
Carrying Values [Member] | Level 2 Inputs [Member]
Financial Assets:
Cash and cash equivalents	75,650	78,129
Held to maturity securities, fair value	10,443	11,797
Accrued interest receivable	6,194	5,767
Mortgage loan servicing rights	3,491	3,721
Bank owned life insurance	28,575	27,676
Investments included in other assets	14,627	10,383
Financial Liabilities:
Deposits	1,946,018	1,884,105
Accrued interest payable	1,132	867
Other liabilities	9,516	10,314
Other borrowings	183,814	110,927
Subordinated debentures	46,393	51,548
Carrying Values [Member] | Level 3 Inputs [Member]
Financial Assets:
Total loans, net of allowance	1,849,586	1,753,323
Fair Values [Member] | Level 2 Inputs [Member]
Financial Assets:
Cash and cash equivalents	75,650	78,129
Held to maturity securities, fair value	10,677	12,282
Accrued interest receivable	6,194	5,767
Mortgage loan servicing rights	4,159	3,721
Bank owned life insurance	28,575	27,676
Investments included in other assets	14,627	10,383
Financial Liabilities:
Deposits	1,897,927	1,780,954
Accrued interest payable	1,132	867
Other liabilities	9,516	10,314
Other borrowings	183,926	112,149
Subordinated debentures	46,393	51,548
Fair Values [Member] | Level 3 Inputs [Member]
Financial Assets:
Total loans, net of allowance	$ 1,839,960	$ 1,728,114

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Deposits (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deposits [Abstract]
Deposit Liabilities Reclassified as Loans Receivable	$ 300	$ 300
Time Deposits $250,000 or More	122,000	95,400
Certificate of Deposits Account Registry Services Deposits	29,000	22,500
Capital Market Certificate of Deposits	$ 35,600	$ 17,300

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Deposits (Schedule Of Deposits) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Deposits [Abstract]
Noninterest-bearing demand	$ 551,709	$ 596,494
Interest-bearing demand	152,656	151,015
Money market accounts	567,058	534,357
Savings accounts	56,410	56,333
Time deposits of $100,000 or more	360,307	311,538
Other time deposits	257,878	234,368
Total deposits	$ 1,946,018	$ 1,884,105	$ 1,533,999

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Deposits (Time Deposits Maturities) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Deposits [Abstract]
2017	$ 465,324
2018	115,862
2019	22,025
2020	8,372
2021	6,575
Thereafter	27
Total time deposits	$ 618,185

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Borrowed Funds (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) entity	Dec. 31, 2015 USD ($)
Federal funds purchase line available under repurchase agreements	$ 60.0
Number of Entities with Repurchase Agreement Lines Available | entity	3
Repurchase Agreement transaction period	one-to-four day
Loans pledged under FHLB agreement	$ 577.7	$ 447.9
Investment Securities Pledged Under FHLB Agreement	0.0	0.0
Collateral Pledged For Repurchase Agreements	61.5	$ 58.9
First Year of Scheduled FHLB Principal Payments	138.0
Line of Credit Facility, Maximum Borrowing Capacity	106.7
Bank SNB [Member]
Federal Home Loan Bank Advances	$ 138.0

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Borrowed Funds (Schedule Of Borrowed Funds) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Short-term Debt	$ 183,814	$ 110,927
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt	45,814	37,273
Short-term Debt, Average Outstanding Amount	$ 45,812	$ 44,218
Short-term Debt, Weighted Average Interest Rate	0.05%	0.07%
Federal Home Loan Bank Advances [Member]
Short-term Debt	$ 138,000	$ 73,654
Short-term Debt, Average Outstanding Amount	$ 97,569	$ 28,289
Short-term Debt, Weighted Average Interest Rate	1.31%	3.11%

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Trust Preferred Securities and Subordinated Debentures (Narrative) (Details) - USD ($)			12 Months Ended
	Oct. 14, 2003	Jun. 26, 2003	Dec. 31, 2016	Dec. 31, 2015	Sep. 04, 2003
Subordinated Borrowing [Line Items]
Trust Preferred Securities			$ 45,000,000	$ 50,000,000
Subordinated debentures			46,393,000	51,548,000
Investment in common equity issued by Trusts			$ 1,400,000
Federal Reserve Limit On Trust Preferred			25.00%
OKSB Statutory Trust I [Member]
Subordinated Borrowing [Line Items]
Trust Preferred Securities		$ 20,000,000	$ 20,000,000	20,000,000
Adjustable rate			90-day LIBOR
Adjustable rate, additional percentage			3.10%
Amount of trust common equity sold to Southwest		$ 600,000
Subordinated debentures			$ 20,619,000	20,619,000
Outstanding common securities of the Trust		619
Trust liquidation value per share		$ 1,000
SBI Capital Trust II [Member]
Subordinated Borrowing [Line Items]
Trust Preferred Securities	$ 25,000,000		$ 25,000,000	25,000,000
Adjustable rate			90-day LIBOR
Adjustable rate, additional percentage			2.85%
Amount of trust common equity sold to Southwest	$ 800,000
Subordinated debentures			$ 25,774,000	25,774,000
Outstanding common securities of the Trust	774
Trust liquidation value per share	$ 1,000
FCBI Statutory Trust I [Member]
Subordinated Borrowing [Line Items]
Trust Preferred Securities				5,000,000	$ 5,000,000
Adjustable rate			90-day LIBOR
Adjustable rate, additional percentage			3.00%
Amount of trust common equity sold to Southwest					200,000
Subordinated debentures				$ 5,155,000
OKSB Subordinated Debentures [Member]
Subordinated Borrowing [Line Items]
Adjustable rate			90-day LIBOR
Adjustable rate, additional percentage			3.10%
Principal amount of subordinated debentures		$ 20,600,000
SBI II Subordinated Debentures [Member]
Subordinated Borrowing [Line Items]
Adjustable rate			90-day LIBOR
Adjustable rate, additional percentage			2.85%
Principal amount of subordinated debentures	$ 25,800,000
FCBI I Subordinated Debentures [Member]
Subordinated Borrowing [Line Items]
Adjustable rate			90-day LIBOR
Adjustable rate, additional percentage			3.00%
Principal amount of subordinated debentures					$ 5,200,000
Trust Preferred Securities [Member]
Subordinated Borrowing [Line Items]
Tier one capital			$ 45,000,000

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Trust Preferred Securities and Subordinated Debentures (Schedule of Trust Preferred Securities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Oct. 14, 2003	Sep. 04, 2003	Jun. 26, 2003
Subordinated Borrowing [Line Items]
Subordinated debentures	$ 46,393	$ 51,548
Trust Preferred Securities of the Trusts	45,000	50,000
OKSB Statutory Trust I [Member]
Subordinated Borrowing [Line Items]
Subordinated debentures	20,619	20,619
Trust Preferred Securities of the Trusts	$ 20,000	$ 20,000			$ 20,000
Rates	4.10%	3.70%
Final Maturity Date	Jun. 26, 2033	Jun. 26, 2033
SBI Capital Trust II [Member]
Subordinated Borrowing [Line Items]
Subordinated debentures	$ 25,774	$ 25,774
Trust Preferred Securities of the Trusts	$ 25,000	$ 25,000	$ 25,000
Rates	3.73%	3.17%
Final Maturity Date	Oct. 07, 2033	Oct. 07, 2033
FCBI Statutory Trust I [Member]
Subordinated Borrowing [Line Items]
Subordinated debentures		$ 5,155
Trust Preferred Securities of the Trusts		$ 5,000		$ 5,000
Rates		3.33%
Final Maturity Date		Sep. 04, 2033

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Derivative Instruments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) agreement	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Derivative [Line Items]
Interest rate swap agreement Notional amount	$ 34,700
The fair value of cash and securities posted as collateral	700	$ 1,400
Interest Rate Swap on Trust Preferred Securities [Member]
Derivative [Line Items]
Interest rate swap agreement Notional amount	$ 25,000
Interest payment period	7 years
Fixed interest rate	6.15%
Variable interest rate	2.85%
Rate received by Southwest	3.73%
Pretax loss related to derivative contracts	$ 700	1,400
Gain or loss due to changes in the fair value of the derivative hedging instrument	400	100
Net cash flows as a result of the interest rate swap agreement	$ 700	800	$ 800
Customer Risk Management Swaps [Member]
Derivative [Line Items]
Number of customer interest rate swap agreements | agreement	9
Derivative Asset, Notional Amount	$ 123,953	101,629
Derivative Liability, Notional Amount	123,953	101,629
Non-hedge derivative asset, fair value	1,235	1,793
Non-hedge derivative liability, fair value	$ 1,235	$ 1,793

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Taxes On Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Effective tax rate	35.70%	36.00%	37.50%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax				$ 2,500
Net deferred tax assets	$ 13,155	$ 13,953
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforward Expiration Date				2031
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration				$ 10,700
State and Local Jurisdiction [Member]
Operating Loss Carryforward Expiration Date	2031			2031
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	$ 10,300			$ 53,100
State And Local Jurisdiction Second Expiration [Member]
Operating Loss Carryforward Expiration Date				2021
Deferred Tax Assets, Operating Loss Carryforwards, State and Local				$ 600

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Taxes On Income (Tax Components) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current tax (benefit) expense:
Federal	$ 8,809	$ 7,534	$ 3,251
State	173	143	186
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	44	1,126	7,970
State	783	990	1,210
Income Tax Expense (Benefit), Total	$ 9,809	$ 9,793	$ 12,617

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Taxes On Income (Reconciliation from the Expected Tax Expense (Benefit) Using the U.S. Federal Income Tax Rate) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Taxes On Income [Abstract]
Computed tax (benefit) expense at statutory rates	$ 9,630	$ 9,520	$ 11,777
Increase (decrease) in income taxes results from:
Benefit of income not subject to U.S. Federal income tax	(632)	(621)	(209)
Expenses not deductible for U.S. Federal income tax	216	220	129
State income taxes, net of Federal income tax benefit	621	736	907
Other	(26)	(62)	13
Income Tax Expense (Benefit), Total	$ 9,809	$ 9,793	$ 12,617

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Taxes on Income (Temporary Differences That Give Rise to the Deferred Tax Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Provision for loan losses	$ 10,976	$ 10,291
Net operating loss carryforward	380	858
Write-down on other real estate		57
Nonaccrual loan interest	510	603
Deferred compensation & profit sharing accrual	782	711
Investments	306	311
Section 597 gain - FDIC-assisted acquistion	388	472
Accrued expenses	859	1,013
Loan purchase accounting adjustment	1,392	2,725
Stock-based compensation	805	629
Other	659	(2)
Total deferred tax assets	17,057	17,668
Deferred tax liabilities:
Accumulated depreciation	(2,966)	(2,877)
Amortizable assets	(933)	(1,089)
Dividend - Equity vs. Cost Method	(471)	(393)
Prepaid expenses	(110)	(109)
FHLB stock dividends	(65)	(132)
Total deferred tax liabilities	(4,545)	(4,600)
Deferred taxes payable on investment securities available for sale	643	885
Net deferred tax assets	$ 13,155	$ 13,953

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Shareholders' Equity (Details) - USD ($) $ in Millions	12 Months Ended		29 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	May 25, 2016
Treasury Stock, Shares, Acquired	1,398,026		2,519,584
Treasury Stock, Amount, Acquired	$ 22.1		$ 40.8
Employee Stock Purchase Plan [Member]
Common stock reserved for issuance	150,000		150,000
Common stock issued, shares	61,115	59,873
Treasury shares reissued	52,500	52,500
2008 Stock Based Award Plan [Member]
Common stock reserved for issuance	800,000		800,000
Common stock issued, shares	603,545	512,101
Treasury shares reissued	25,725	25,725
2016 Stock Repurchase Program [Member]
Stock Repurchase Program Authorized Percent Of Common Stock				5.00%
Stock Repurchase Program, Number of Shares Authorized to be Repurchased				921,000

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Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Numerator:
Net income	$ 17,704	$ 17,407	$ 21,030
Earnings allocated to participating securities	(279)	(258)	(253)
Numerator for earnings per common share	$ 17,425	$ 17,149	$ 20,777
Denominator:
Denominator for basic earnings per common share	18,660,951	18,975,450	19,417,486
Effect of dilutive securities:
Stock compensation	205,916	148,059	142,877
Denominator for diluted earnings per common share	18,866,867	19,123,509	19,560,363
Earnings per common share:
Basic	$ 0.93	$ 0.90	$ 1.07
Diluted	$ 0.92	$ 0.90	$ 1.06
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	6,573	38,145	0

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Capital Requirements And Regulatory Agreements (Southwest’s and Bank SNB's Actual Capital Amounts And Ratios) (Details) $ in Thousands	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Southwest [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 Capital, Actual, Amount	$ 272,882	$ 282,737
CET1 Capital to risk-weighted assets, Actual, Ratio	12.36	13.21
CET1 Capital, To Be Well Capitalized, Amount	$ 143,488	$ 139,122
CET1 Capital to risk-weighted assets, To Be Well Capitalized, Ratio	6.50	6.50
CET1 Capital, For Capital Adequacy Purposes, Amount	$ 99,338	$ 96,316
CET1 Capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio	4.50	4.50
Total Capital, Actual, Amount	$ 345,597	$ 359,300
Total Capital to risk-weighted assets, Actual, Ratio	15.66%	16.79%
Total Capital, To Be Well Capitalized, Amount	$ 220,751	$ 214,034
Total Capital to risk-weighted assets, To Be Well Capitalized, Ratio	10.00%	10.00%
Total Capital, For Capital Adequacy Purposes, Amount	$ 176,601	$ 171,228
Total Capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio	8.00%	8.00%
Tier 1 Capital, Actual, Amount	$ 317,882	$ 332,468
Tier 1 Capital to risk-weighted assets, Actual, Ratio	14.40%	15.53%
Tier 1 Capital, To Be Well Capitalized, Amount	$ 176,601	$ 171,228
Tier 1 Capital to risk-weighted assets, To Be Well Capitalized, Ratio	8.00%	8.00%
Tier 1 Capital, For Capital Adequacy Purposes, Amount	$ 132,450	$ 128,421
Tier 1 Capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio	6.00%	6.00%
Tier 1 Leverage, Actual, Amount	$ 317,882	$ 332,468
Tier 1 Leverage to average assets, Actual, Ratio	13.02%	14.41%
Tier 1 Leverage, To Be Well Capitalized, Amount	$ 122,046	$ 115,371
Tier 1 Leverage to average assets, To Be Well Capitalized, Ratio	5.00%	5.00%
Tier 1 Leverage, For Capital Adequacy Purposes, Amount	$ 97,637	$ 92,297
Tier 1 Leverage to average assets, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
Bank SNB [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 Capital, Actual, Amount	$ 301,023	$ 291,125
CET1 Capital to risk-weighted assets, Actual, Ratio	13.66	13.65
CET1 Capital, To Be Well Capitalized, Amount	$ 143,189	$ 138,637
CET1 Capital to risk-weighted assets, To Be Well Capitalized, Ratio	6.50	6.50
CET1 Capital, For Capital Adequacy Purposes, Amount	$ 99,131	$ 95,980
CET1 Capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio	4.50	4.50
Total Capital, Actual, Amount	$ 328,681	$ 317,865
Total Capital to risk-weighted assets, Actual, Ratio	14.92%	14.90%
Total Capital, To Be Well Capitalized, Amount	$ 220,291	$ 213,288
Total Capital to risk-weighted assets, To Be Well Capitalized, Ratio	10.00%	10.00%
Total Capital, For Capital Adequacy Purposes, Amount	$ 176,232	$ 170,631
Total Capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio	8.00%	8.00%
Tier 1 Capital, Actual, Amount	$ 301,023	$ 291,125
Tier 1 Capital to risk-weighted assets, Actual, Ratio	13.66%	13.65%
Tier 1 Capital, To Be Well Capitalized, Amount	$ 176,232	$ 170,631
Tier 1 Capital to risk-weighted assets, To Be Well Capitalized, Ratio	8.00%	8.00%
Tier 1 Capital, For Capital Adequacy Purposes, Amount	$ 132,174	$ 127,973
Tier 1 Capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio	6.00%	6.00%
Tier 1 Leverage, Actual, Amount	$ 301,023	$ 291,125
Tier 1 Leverage to average assets, Actual, Ratio	12.37%	12.66%
Tier 1 Leverage, To Be Well Capitalized, Amount	$ 121,686	$ 114,939
Tier 1 Leverage to average assets, To Be Well Capitalized, Ratio	5.00%	5.00%
Tier 1 Leverage, For Capital Adequacy Purposes, Amount	$ 97,349	$ 91,951
Tier 1 Leverage to average assets, For Capital Adequacy Purposes, Ratio	4.00%	4.00%

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Employee Benefits (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Maximum percentage of elegible compensation able to be contributed to the defined contribution plan	90.00%
Employer match contribution		3.00%	3.00%
Amount contributed to the defined contribution plan	$ 800,000	$ 700,000	$ 600,000
Share-based compensation expense	$ 0	$ 0	$ 0
Restricted shares granted	546,895	462,024	453,987
Recognized compensation expense related to restricted shares outstanding	$ 1,500,000	$ 1,300,000	$ 600,000
Unrecognized compensation expense, expected to be recognized in next fiscal year	$ 1,000,000
Unrecognized compensation expense, period of recognition	2 years
Number of Options Outstanding	0	0
Exercised, Number of Options	0	0	0
Expiration period of restricted shares	1 year
Restricted Stock [Member]
Unrecognized compensation expense related to restricted shares granted	$ 1,600,000
Maximum [Member]
Vesting period of restriced stock	3 years
Minimum [Member]
Vesting period of restriced stock	1 year

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Related Party Transactions (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Related Party Transactions [Abstract]
Related party indebtedness	$ 14,200,000	$ 26,100,000
New loans and advances on existing loans	26,900,000	41,200,000
Related party loan repayments	38,900,000	24,200,000
Related party deposits	1,800,000	2,100,000
Related party savings and interest-bearing transaction accounts	13,200,000	14,000,000
Related party time certificates of deposit	$ 0	$ 500,000

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Off-Balance-Sheet Arrangements, Commitments, Guarantees And Contingencies (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Commitments and Contingencies [Abstract]
Commitments to extend commercial and real estate mortgage credit	$ 429,383	$ 446,412
Standby and commercial letters of credit	7,160	6,595
Total	436,543	$ 453,007
Maximum amount payable for Severance Compensation Plan	$ 12,100

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Operating Segments (Narrative) (Details)	12 Months Ended
	Dec. 31, 2016 segment
Operating Segments [Abstract]
Number of principal segments	4

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Operating Segments (Financial Results By Operating Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Oct. 09, 2015
Financial results by operating segment
Net interest income (loss)	$ 79,443	$ 67,417	$ 65,004
Provision (credit) for loan losses	4,769	(3,566)	(6,624)
Noninterest income	16,085	14,457	18,931
Noninterest expenses	63,246	58,240	56,912
Income before taxes	27,513	27,200	33,647
Taxes on income (loss)	9,809	9,793	12,617
Net income	17,704	17,407	21,030
Total loans at period end	1,877,132	1,779,429	1,399,991
Total assets at period end	2,475,392	2,357,022	1,214
Total goodwill at period end	13,545	13,467	1,942,034	$ 12,300
Total deposits at period end	1,946,018	1,884,105	1,533,999
Oklahoma Banking [Member]
Financial results by operating segment
Net interest income (loss)	50,590		38,846
Provision (credit) for loan losses	2,007		(2,561)
Noninterest income	11,576		9,030
Noninterest expenses	40,083		31,363
Income before taxes	20,076		19,074
Taxes on income (loss)	7,157		7,152
Net income	12,919		11,922
Total loans at period end	1,095,930		793,262
Total assets at period end	1,138,969		194
Total goodwill at period end	12,525		805,704	$ 12,300
Total deposits at period end	1,330,176		1,113,477
Texas Banking [Member]
Financial results by operating segment
Net interest income (loss)	22,697		19,187
Provision (credit) for loan losses	973		(3,640)
Noninterest income	1,273		1,594
Noninterest expenses	13,734		13,387
Income before taxes	9,263		11,034
Taxes on income (loss)	3,303		4,138
Net income	5,960		6,896
Total loans at period end	636,643		460,680
Total assets at period end	633,328		1,020
Total goodwill at period end	1,020		458,489
Total deposits at period end	195,603		224,634
Kansas Banking [Member]
Financial results by operating segment
Net interest income (loss)	6,694		9,469
Provision (credit) for loan losses	1,786		(425)
Noninterest income	1,202		1,576
Noninterest expenses	5,275		8,616
Income before taxes	835		2,854
Taxes on income (loss)	298		1,070
Net income	537		1,784
Total loans at period end	144,559		146,043
Total assets at period end	143,558
Total goodwill at period end			147,256
Total deposits at period end	147,823		110,901
Other Operations [Member]
Financial results by operating segment
Net interest income (loss)	(538)		(2,498)
Provision (credit) for loan losses	3		2
Noninterest income	2,034		6,731
Noninterest expenses	4,154		3,546
Income before taxes	(2,661)		685
Taxes on income (loss)	(949)		257
Net income	(1,712)		428
Externally generated revenue from investing activities	3,000	2,100	7,600
Internally generated loss from fund management	1,500	$ 2,800	3,300
Total loans at period end			6
Total assets at period end	559,537
Total goodwill at period end			530,585
Total deposits at period end	$ 272,416		$ 84,987

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Parent Company Condensed Financial Information (Statements Of Financial Condition) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash and cash equivalents	$ 75,650	$ 78,129	$ 140,936	$ 279,839
Available-for-sale Securities	426,218	400,331
Other assets	34,998	32,031
Total assets	2,475,392	2,357,022	1,214
Subordinated debentures	46,393	51,548
Other liabilities	10,171	11,684
Common stock and related accounts	21,231	21,138
Total liabilities & shareholders' equity	2,475,392	2,357,022
Parent Company [Member]
Cash and cash equivalents	12,105	30,469	$ 21,526	$ 12,039
Investment in subsidiary banks	315,181	305,064
Investments in other subsidiaries	2,084	8,444
Other assets	5,499	6,393
Total assets	334,869	350,370
Subordinated debentures	46,393	51,548
Other liabilities	1,847	2,724
Common stock and related accounts	286,629	296,098
Total liabilities & shareholders' equity	$ 334,869	$ 350,370

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Parent Company Condensed Financial Information (Statements Of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Noninterest income	$ 16,085	$ 14,457	$ 18,931
Subordinated debentures	2,350	2,284	2,233
Noninterest expenses	63,246	58,240	56,912
Total income (loss) before taxes and equity in undistributed income of subsidiaries	27,513	27,200	33,647
Taxes on income (loss)	9,809	9,793	12,617
Net income	17,704	17,407	21,030
Parent Company [Member]
Cash dividends from subsidiaries	10,052	20,046	18,045
Noninterest income	25	45	34
Investment income		20	1,337
Other operating income	15	25	3
Security gains		163
Total income	10,092	20,299	19,419
Subordinated debentures	1,740	1,566	1,505
Noninterest expenses	2,191	1,756	1,317
Total expense	3,931	3,322	2,822
Total income (loss) before taxes and equity in undistributed income of subsidiaries	6,161	16,977	16,597
Taxes on income (loss)	(1,377)	(1,167)	(582)
Income (loss) before equity in undistributed income of subsidiaries	7,538	18,144	17,179
Equity in undistributed income (loss) of subsidiaries	10,166	(737)	3,851
Net income	$ 17,704	$ 17,407	$ 21,030

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Parent Company Condensed Financial Information (Statements Of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income	$ 17,704	$ 17,407	$ 21,030
Net cash provided by operating activities	26,981	14,932	26,703
Payments to Acquire Available-for-sale Securities	159,542	115,710	51,344
Purchases of available for sale securities	(159,542)	(115,710)	(51,344)
Net cash used in investing activities	(131,535)	(194,433)	(231,795)
Net proceeds from issuance of common stock	1,239	682	385
Purchases of treasury stock	(22,721)	(8,624)	(10,302)
Common stock dividends paid	(6,088)	(4,607)	(3,131)
Net cash provided by financing activities	102,075	116,694	66,189
Net decrease in cash and cash equivalents	(2,479)	(62,807)	(138,903)
Beginning of period	78,129	140,936	279,839
End of period	75,650	78,129	140,936
Parent Company [Member]
Net income	17,704	17,407	21,030
Equity in undistributed (income) loss of subsidiaries	(10,166)	737	(3,851)
Other, net	6,823	2,295	2,937
Net cash provided by operating activities	14,361	20,439	20,116
Payments to Acquire Available-for-sale Securities			1,121
Purchases of available for sale securities			(1,121)
Sales/Maturities of available for sale securities		750	2,540
Proceeds from Sale and Maturity of Available-for-sale Securities		750	2,540
Outlays For Business Acquisitions		(4,697)
Other, net		(155)
Net cash used in investing activities		(4,102)	1,419
Net proceeds from issuance of common stock	1,239	682	1,386
Purchases of treasury stock	(22,721)	(8,624)	(10,302)
Common stock dividends paid	(6,088)	(4,607)	(3,132)
Other, net	(5,155)	5,155
Net cash provided by financing activities	(32,725)	(7,394)	(12,048)
Net decrease in cash and cash equivalents	(18,364)	8,943	9,487
Beginning of period	30,469	21,526	12,039
End of period	$ 12,105	$ 30,469	$ 21,526

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Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Thousands	Mar. 18, 2011	Dec. 31, 2016
Loss Contingency, Information about Litigation Matters [Abstract]
Loan Balance of Swap Commitment		$ 14,700
Loss Contingency, Lawsuit Filing Date	March 18, 2011
Interest rate swap agreement Notional amount		$ 34,700