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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-K





(Mark One)



|x | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (D) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | -------------------------------------------------------------------------------------



| |  | For The Fiscal Year Ended December 31, 2009
| |  | -------------------------------------------

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | -----------------------------------------------------------------------------------------



| |  | For the transition period from              to
| |  | ----------------------------------------------

Commission File Number 0-25051





PROSPERITY BANCSHARES, INC.®

(Exact name of registrant as
specified in its charter)







|                                                               |  |                                     
|-------------------------------------------------------------- |  | ------------------------------------
|Texas                                                          |  | 74-2331986                          
|(State or other jurisdiction of incorporation or organization) |  | (I.R.S. Employer Identification No.)



|                                                     |  |           
|---------------------------------------------------- |  | ----------
|Prosperity Bank Plaza 4295 San Felipe Houston, Texas |  | 77027     
|(Address of principal executive offices)             |  | (Zip Code)

Registrants Telephone Number, Including Area Code: (713) 693-9300

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



|                        |  |                                            
|----------------------- |  | -------------------------------------------
|Common Stock, par value |  |                                            
|$1.00 per share         |  | NASDAQ Global Select Market                
|(Title of each class)   |  | (Name of each exchange on which registered)

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   ̈    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 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.    Yes  x    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 during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files).    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 the Form 10-K or any amendment of this Form 10-K.  x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated
filer or a smaller reporting company. See the definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act. (Check One):



|                           |  |                      |  |                          |  |                             
|-------------------------- |  | -------------------- |  | ------------------------ |  | ----------------------------
|Large Accelerated Filer  x |  | Accelerated Filer   ̈ |  | 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   ̈    No  x

The aggregate market value of the shares of Common Stock held by non-affiliates as of June 30, 2009, based on the closing price of the
Common Stock on the NASDAQ Global Select Market on June 30, 2009 was approximately $1.26 billion.

As of February 24,
2010, the number of outstanding shares of Common Stock was 46,546,576.

Documents Incorporated by Reference:

Portions of the Companys Proxy Statement relating to the 2010 Annual Meeting of Shareholders, which will be filed within 120 days
after December 31, 2009, are incorporated by reference into Part III, Items 10-14 of this Annual Report on Form 10-K.









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PROSPERITY BANCSHARES, INC.®

2009 ANNUAL REPORT ON FORM 10-K

TABLE OF CONTENTS



|         |  |            |  |                                                                                                              |  |   
|-------- |  | ---------- |  | ------------------------------------------------------------------------------------------------------------ |  | --
|PART I   |  |            |  |                                                                                                              |  |   
|         |  | Item 1.    |  | Business                                                                                                     |  | 1 
|         |  |            |  | General                                                                                                      |  | 1 
|         |  |            |  | Subsequent Events                                                                                            |  | 2 
|         |  |            |  | Available Information                                                                                        |  | 3 
|         |  |            |  | Officers and Associates                                                                                      |  | 3 
|         |  |            |  | Banking Activities                                                                                           |  | 3 
|         |  |            |  | Business Strategies                                                                                          |  | 4 
|         |  |            |  | Competition                                                                                                  |  | 5 
|         |  |            |  | Supervision and Regulation                                                                                   |  | 5 
|         |  | Item 1A.   |  | Risk Factors                                                                                                 |  | 16
|         |  | Item 1B.   |  | Unresolved Staff Comments                                                                                    |  | 25
|         |  | Item 2.    |  | Properties                                                                                                   |  | 25
|         |  | Item 3.    |  | Legal Proceedings                                                                                            |  | 25
|         |  | Item 4.    |  | Reserved                                                                                                     |  | 25
|         |  |            | 
|PART II  |  |            |  |                                                                                                              |  |   
|         |  | Item 5.    |  | Market for Registrants Common Equity, Related Shareholder Matters and Issuer Purchases of Equity Securities |  | 26
|         |  | Item 6.    |  | Selected Consolidated Financial Data                                                                         |  | 29
|         |  | Item 7.    |  | Managements Discussion and Analysis of Financial Condition and Results of
Operations                        |  | 31
|         |  |            |  | Overview                                                                                                     |  | 32
|         |  |            |  | Subsequent Events                                                                                            |  | 33
|         |  |            |  | Critical Accounting Policies                                                                                 |  | 34
|         |  |            |  | Results of Operations                                                                                        |  | 35
|         |  |            |  | Financial Condition                                                                                          |  | 42
|         |  | Item 7A.   |  | Quantitative and Qualitative Disclosures about Market Risk                                                   |  | 63
|         |  | Item 8.    |  | Financial Statements and Supplementary Data                                                                  |  | 64
|         |  | Item 9.    |  | Changes in and Disagreements with Accountants on Accounting and Financial
Disclosure                         |  | 65
|         |  | Item 9A.   |  | Controls and Procedures                                                                                      |  | 65
|         |  | Item 9B.   |  | Other Information                                                                                            |  | 68
|         |  |            | 
|PART III |  |            |  |                                                                                                              |  |   
|         |  | Item 10.   |  | Directors, Executive Officers and Corporate Governance                                                       |  | 68
|         |  | Item 11.   |  | Executive Compensation                                                                                       |  | 68
|         |  | Item 12.   |  | Security Ownership of Certain Beneficial Owners and Management and Related Shareholder
Matters               |  | 68
|         |  | Item 13.   |  | Certain Relationships and Related Transactions and Director Independence                                     |  | 68
|         |  | Item 14.   |  | Principal Accountant Fees and Services                                                                       |  | 68
|         |  |            | 
|PART IV  |  |            |  |                                                                                                              |  |   
|         |  | Item 15.   |  | Exhibits and Financial Statement Schedules                                                                   |  | 69
|         |  | Signatures |  | 72                                                                                                          



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PART I

ITEM 1. BUSINESS

General

Prosperity Bancshares, Inc.®, a Texas corporation (the Company), was formed in 1983 as a vehicle to acquire the former Allied Bank in Edna, Texas which was chartered in 1949 as The
First National Bank of Edna and is now known as Prosperity Bank. The Company is a registered financial holding company that derives substantially all of its revenues and income from the operation of its bank subsidiary, Prosperity Bank® (Prosperity Bank® or the Bank). The Bank provides a broad line of financial products and services to small and medium-sized businesses and consumers. As of
December 31, 2009, the Bank operated one hundred fifty-eight (158) full-service banking locations; with fifty-one (51) in the Houston area, twenty-seven (27) in the South Texas area including Corpus Christi and Victoria,
twenty-seven (27) in the Central Texas area including Austin and San Antonio, twenty (20) in East Texas, nine (9) in Bryan/College Station and twenty-four (24) in the Dallas/Fort Worth, Texas area. The Companys headquarters
are located at Prosperity Bank Plaza, 4295 San Felipe in Houston, Texas and its telephone number is (281) 269-7199. The Companys website address is www.prosperitybanktx.com.

The Companys market consists of the communities served by its banking centers. The diverse nature of the economies in each local
market served by the Company provides the Company with a varied customer base and allows the Company to spread its lending risk throughout a number of different industries including professional service firms and their principals, manufacturing,
tourism, recreation, petrochemicals, farming and ranching. The Companys market areas outside of Houston, Dallas, Corpus Christi and Austin are dominated by either small community banks or branches of large regional banks. Management believes
that the Company, as one of the few mid-sized financial institutions that combines responsive community banking with the sophistication of a regional bank holding company, has a competitive advantage in its market areas and excellent growth
opportunities through acquisitions, including acquisitions of failed financial institutions, new banking center locations and additional business development.

Operating under a community banking philosophy, the Company seeks to develop broad customer relationships based on service and convenience while maintaining its conservative approach to lending and strong
asset quality. The Company has grown through a combination of internal growth, the acquisition of community banks, branches of banks and the opening of new banking centers. Utilizing a low cost of funds and employing stringent cost controls, the
Company has been profitable in every full year of its existence, including the period of adverse economic conditions in Texas in the late 1980s and more recently in 2008 and 2009. From 1988 to 1992 as a sound and profitable institution, the Company
took advantage of this economic downturn and acquired the deposits and certain assets of failed banks in West Columbia, El Campo and Cuero, Texas and two failed banks in Houston, which diversified the Companys franchise and increased its core
deposits. The Company opened a full-service banking center in Victoria, Texas in 1993 and the following year established a banking center in Bay City, Texas. The Company expanded its Bay City presence in 1996 with the acquisition of an additional
branch location from Norwest Bank Texas (now Wells Fargo), and in 1997, the Company acquired the Angleton, Texas branch of Wells Fargo Bank. In 1998, the Company enhanced its West Columbia Banking Center with the purchase of a commercial bank branch
located in West Columbia and acquired Union State Bank in East Bernard, Texas. In 2008, the Company again took advantage of the economic downturn and acquired approximately $3.6 billion in deposits and certain assets of Franklin Bank headquartered
in Houston, Texas from the FDIC.



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From December 31, 1998 through December 31, 2009, the Company grew through
internal growth and the completion of the following acquisitions:



|                                        |  |                                                                         |  |                |  |                                                  |    
|--------------------------------------- |  | ----------------------------------------------------------------------- |  | -------------- |  | ------------------------------------------------ | ---
|Acquired Entity                         |  | Acquired Bank                                                           |  | CompletionDate |  | Number ofBanking CentersAs ofDecember 31,2009(1) |    
|South Texas Bancshares, Inc.            |  | Commercial National Bank                                                |  | 1999           |  | 3                                                |    
|Compass Bank (5 branches)               |  | N/A                                                                     |  | 2000           |  | 4                                                |    
|Commercial Bancshares, Inc.             |  | Heritage Bank                                                           |  | 2001           |  | 12                                               |    
|Texas Guaranty Bank, N.A.               |  | Same                                                                    |  | 2002           |  | 2                                                |    
|The First State Bank of Needville       |  | Same                                                                    |  | 2002           |  |                                                 | (2)
|Paradigm Bancorporation, Inc.           |  | Paradigm Bank Texas                                                     |  | 2002           |  | 8                                                |    
|Southwest Bank Holding Company          |  | Bank of the Southwest                                                   |  | 2002           |  | 2                                                |    
|First National Bank of Bay City         |  | Same                                                                    |  | 2002           |  |                                                 | (2)
|Abrams Centre Bancshares, Inc.          |  | Abrams Centre National Bank                                             |  | 2003           |  | 1                                                |    
|Dallas Bancshares, Inc.                 |  | BankDallas                                                              |  | 2003           |  | 1                                                |    
|MainBancorp, Inc.                       |  | mainbank, n.a.                                                          |  | 2003           |  | 3                                                |    
|First State Bank of North Texas         |  | Same                                                                    |  | 2003           |  | 3                                                |    
|Liberty Bancshares, Inc.                |  | Liberty Bank, S.S.B.                                                    |  | 2004           |  | 4                                                |    
|Village Bank and Trust, s.s.b           |  | Same                                                                    |  | 2004           |  | 1                                                |    
|First Capital Bankers, Inc.             |  | FirstCapital Bank, s.s.b.                                               |  | 2005           |  | 20                                               |    
|Grapeland Bancshares, Inc.              |  | First State Bank of Grapeland                                           |  | 2005           |  | 2                                                |    
|SNB Bancshares, Inc                     |  | Southern National Bank of Texas                                         |  | 2006           |  | 6                                                | (3)
|Texas United Bancshares, Inc            |  | State Bank, GNB Financial, n.a.,Gateway National Bank andNorthwest Bank |  | 2007           |  | 34                                               |    
|The Bank of Navasota                    |  | Same                                                                    |  | 2007           |  | 1                                                |    
|Banco Popular, NA (6 branches)          |  | N/A                                                                     |  | 2008           |  | 5                                                |    
|1stChoice Bancorp                       |  | 1stChoice Bank                                                          |  | 2008           |  | 1                                                |    
|FDIC (as receiver for Franklin Bank)(4) |  | N/A                                                                     |  | 2008           |  | 33                                               |    



|(1) | The number of banking centers added does not include any locations of the acquired entity that were closed and consolidated with existing banking centers of the Company
upon consummation of the transaction or closed after consummation of the transaction.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | The only banking center of the acquired entity was closed and consolidated into an existing banking center of the Company.
|--- | --------------------------------------------------------------------------------------------------------------------------

|(3) | Included one banking center under construction at the time of consummation.
|--- | ---------------------------------------------------------------------------

|(4) | Assumed approximately $3.6 billion of deposits and acquired certain assets, including thirty-three (33) banking centers, from the FDIC, acting in its capacity as
receiver for Franklin Bank.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Subsequent Events

On January 19, 2010, the Company announced the signing of a definitive agreement by Prosperity Bank to acquire the three (3) Texas
retail bank branches of U.S. Bank. Prosperity Bank will pay a premium for approximately $420 million in deposits, as well as purchase certain loans and other assets attributable to the branches. The three locations being acquired by the Company are
the Texas locations U.S. Bank acquired from the FDIC on October 30, 2009 when U.S. Bank acquired the nine (9) subsidiary banks of FBOP Corporation. The Texas banks were Madisonville State Bank in Madisonville, Texas; Citizens National
Bank in Teague, Texas; and North Houston Bank in Houston, Texas. The agreement has been approved by the Board of Directors of both banks and is expected to close during the first quarter of 2010, although delays could occur. The transaction is
subject to certain conditions, including customary regulatory approvals.



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On February 8, 2010, the Company announced the signing by Prosperity Bank of a
definitive agreement to acquire the nineteen (19) Texas retail bank branches of First Bank, a Missouri state-chartered bank. Prosperity Bank will pay a premium of 5.5% for approximately $500 million in deposits, as well as purchase
approximately $100 million in loans and other assets attributable to the branches. First Banks Texas locations are all in the Houston and Dallas metropolitan areas. After the consolidation of locations near existing Company banking centers and
the acquisition of the Houston branch of U.S. Bank, the Company will operate thirty-one (31) Dallas/Fort Worth area banking centers and fifty-eight (58) Houston area banking centers. The agreement has been approved by the Board of
Directors of both banks and is expected to close during the second quarter of 2010, although delays could occur. The transaction is subject to certain conditions, including customary regulatory approvals.

Available Information

The Companys website address is www.prosperitybanktx.com. The Company makes available free of charge on or through its website its Annual Report on Form 10-K, quarterly reports on Form 10-Q,
current reports on Form 8-K and all amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (Exchange Act), as soon as reasonably practicable after such
material is electronically filed with or furnished to the Securities and Exchange Commission. Information contained on the Companys website is not incorporated by reference into this Annual Report on Form 10-K and is not part of this or any
other report.

Officers and Associates

The Companys directors and officers are important to the Companys success and play a key role in the Companys business
development efforts by actively participating in civic and public service activities in the communities served by the Company.

The Company has invested heavily in its officers and associates by recruiting talented officers in its market areas and providing them with economic incentive in the form of stock-based compensation and bonuses based on cross-selling
performance. The senior management team has substantial experience in the Houston, Dallas, Austin, Bryan/College Station, East Texas, Corpus Christi and San Antonio markets and the surrounding communities in which the Company has a presence. Each
banking center location is administered by a local president or manager with knowledge of the community and lending expertise in the specific industries found in the community. The Company entrusts its banking center presidents and managers with
authority and flexibility within general parameters with respect to product pricing and decision making in order to avoid the bureaucratic structure of larger banks. The Company operates each banking center as a separate profit center, maintaining
separate data with respect to each banking centers net interest income, efficiency ratio, deposit growth, loan growth and overall profitability. Banking center presidents and managers are accountable for performance in these areas and
compensated accordingly. The Companys local banking centers have no 1-800 telephone numbers. Each banking center has its own listed local business telephone number. Customers are served by a local banker with decision making authority.

As of December 31, 2009, the Company and the Bank had 1,594 full-time equivalent associates, 605 of whom were officers
of the Bank. The Company provides medical and hospitalization insurance to its full-time associates. The Company considers its relations with associates to be excellent. Neither the Company nor the Bank is a party to any collective bargaining
agreement.

Banking Activities

The Company, through the Bank, offers a variety of traditional loan and deposit products to its customers, which consist primarily of consumers and small and medium-sized businesses. The Bank tailors its
products to the specific needs of customers in a given market. At December 31, 2009, the Bank maintained approximately



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359,000 separate deposit accounts including certificates of deposit, 36,000 separate loan accounts and 20.6% of the Banks total deposits were noninterest-bearing demand deposits. For the
year ended December 31, 2009, the Companys average cost of funds was 1.37% and the Companys average cost of deposits (excluding all borrowings) was 1.33%.

The Company has been an active real estate lender, with commercial mortgage and 1-4 family residential loans comprising 37.4% and 21.0% of
the Companys total loans as of December 31, 2009, respectively. The Company also offers commercial loans, loans for automobiles and other consumer durables, home equity loans, debit cards, internet banking and other cash management
services and automated telephone banking. By offering certificates of deposit, interest checking accounts, savings accounts and overdraft protection at competitive rates, the Company gives its depositors a full range of traditional deposit products.

The businesses targeted by the Company in its lending efforts are primarily those that require loans in the $100,000 to $8.0
million range. The Company offers these businesses a broad array of loan products including term loans, lines of credit and loans for working capital, business expansion and the purchase of equipment and machinery, interim construction loans for
builders and owner-occupied commercial real estate loans.

Business Strategies

The Companys main objective is to increase deposits and loans internally, as well as through additional expansion opportunities, while
maintaining efficiency and individualized customer service and maximizing profitability. To achieve this objective, the Company has employed the following strategic goals:

Continue Community Banking Emphasis. The Company intends to continue operating as a community banking organization focused on meeting
the specific needs of consumers and small and medium-sized businesses in its market areas. The Company provides a high degree of responsiveness combined with a wide variety of banking products and services. The Company staffs its banking centers
with experienced bankers with lending expertise in the specific industries found in the given community, and gives them authority to make certain pricing and credit decisions, avoiding the bureaucratic structure of larger banks.

Expand Market Share Through Internal Growth and a Disciplined Acquisition Strategy. The Company intends to continue seeking
opportunities, both inside and outside its existing markets, to expand either by acquiring existing banks or branches of banks, including FDIC assisted purchases, or by establishing new banking centers. All of the Companys acquisitions have
been accretive to earnings within 12 months after acquisition date and generally have supplied the Company with relatively low-cost deposits which have been used to fund the Companys lending and investing activities. However, the Company makes
no guarantee that future acquisitions, if any, will be accretive to earnings within any particular time period. Factors used by the Company to evaluate expansion opportunities include (i) the similarity in management and operating philosophies,
(ii) whether the acquisition will be accretive to earnings and enhance shareholder value, (iii) the ability to improve the efficiency ratio through economies of scale, (iv) whether the acquisition will strategically expand the
Companys geographic footprint, and (v) the opportunity to enhance the Companys market presence in existing market areas.

Increase Loan Volume and Diversify Loan Portfolio. While maintaining its conservative approach to lending, the Company has emphasized both new and existing loan products, focusing on managing its
commercial mortgage and commercial loan portfolios. During the two-year period from December 31, 2007 to December 31, 2009, the Companys commercial and industrial loans decreased from $436.3 million to $393.0 million, or 9.9%, and
represented 13.9% and 11.6% of the total portfolio, respectively. Commercial mortgages increased from $1.08 billion to $1.26 billion, or 17.3%, and represented 34.2% and 37.4% of the total portfolio, respectively, for the same period. In addition,
the Company targets professional service firms, including legal and medical practices, for both loans secured by owner-occupied premises and personal loans to their principals.



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Maintain Strong Asset Quality. The Company continues to maintain the strong asset
quality that has been representative of its historical loan portfolio. As the Company continues to diversify and increase its lending activities and acquire loans in acquisitions, it may face higher risks of nonpayment and increased risks in the
event of continued economic downturns. The Company intends to continue to employ the strict underwriting guidelines and comprehensive loan review process that have contributed to its low incidence of nonperforming assets and its minimal charge-offs
in relation to its size.

Continue Focus on Efficiency. The Company plans to maintain its stringent cost control
practices and policies. The Company has invested significantly in the infrastructure required to centralize many of its critical operations, such as data processing and loan processing. For its banking centers, which the Company operates as
independent profit centers, the Company supplies complete support in the areas of loan review, internal audit, compliance and training. Management believes that this centralized infrastructure can accommodate additional growth while enabling the
Company to minimize operational costs through economies of scale.

Enhance Cross-Selling. The Company recognizes that
its customer base provides significant opportunities to cross-sell various products and it seeks to develop broader customer relationships by identifying cross-selling opportunities. The Company uses incentives and friendly competition to encourage
cross-selling efforts and increase cross-selling results among its associates. Officers and associates have access to each customers existing and related account relationships and are better able to inform customers of additional products when
customers visit or call the various banking centers or use their drive-in facilities. In addition, the Company includes product information in monthly statements and other mailings.

Competition

The banking business is highly
competitive, and the profitability of the Company depends principally on its ability to compete in its market areas. The Company competes with other commercial banks, savings banks, savings and loan associations, credit unions, finance companies,
mutual funds, insurance companies, brokerage and investment banking firms, asset-based nonbank lenders and certain other nonfinancial entities, including retail stores which may maintain their own credit programs and certain governmental
organizations which may offer more favorable financing than the Company. The Company believes it has been able to compete effectively with other financial institutions by emphasizing customer service, technology and responsive decision-making with
respect to loans, by establishing long-term customer relationships and building customer loyalty and by providing products and services designed to address the specific needs of its customers.

Supervision and Regulation

The supervision and regulation of bank holding companies and their subsidiaries is intended primarily for the protection of depositors, the Deposit Insurance Fund (DIF) of the Federal Deposit
Insurance Corporation (FDIC) and the banking system as a whole, and not for the protection of the bank holding companys shareholders or creditors. The banking agencies have broad enforcement power over bank holding companies and
banks including the power to impose substantial fines and other penalties for violations of laws and regulations.

The
following description summarizes some of the laws to which the Company and the Bank are subject. References in this Annual Report on Form 10-K to applicable statutes and regulations are brief summaries thereof, do not purport to be complete, and are
qualified in their entirety by reference to such statutes and regulations.

The Company

The Company is a financial holding company pursuant to the Gramm-Leach-Bliley Act and a bank holding company registered under the Bank
Holding Company Act of 1956, as amended (BHCA). Accordingly, the Company is subject to supervision, regulation and examination by the Board of Governors of the Federal Reserve



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##### Index to Financial Statements

System (Federal Reserve Board). The Gramm-Leach-Bliley Act, the BHCA and other federal laws subject financial and bank holding companies to particular restrictions on the types of
activities in which they may engage, and to a range of supervisory requirements and activities, including regulatory enforcement actions for violations of laws and regulations.

Regulatory Restrictions on Dividends; Source of Strength. It is the policy of the Federal Reserve Board that bank holding companies
should pay cash dividends on common stock only out of income available over the past year and only if prospective earnings retention is consistent with the organizations expected future needs and financial condition. The policy provides that
bank holding companies should not maintain a level of cash dividends that undermines the bank holding companys ability to serve as a source of strength to its banking subsidiaries.

Under Federal Reserve Board policy, a bank holding company is expected to act as a source of financial strength to each of its banking
subsidiaries and commit resources to their support. Such support may be required at times when, absent this Federal Reserve Board policy, a holding company may not be inclined to provide it. As discussed below, a bank holding company, in certain
circumstances, could be required to guarantee the capital plan of an undercapitalized banking subsidiary.

In the event of a
bank holding companys bankruptcy under Chapter 11 of the U.S. Bankruptcy Code, the trustee will be deemed to have assumed and is required to cure immediately any deficit under any commitment by the debtor holding company to any of the federal
banking agencies to maintain the capital of an insured depository institution. Any claim for breach of such obligation will generally have priority over most other unsecured claims.

Scope of Permissible Activities. Under the BHCA, bank holding companies generally may not acquire a direct or indirect interest in or
control of more than 5% of the voting shares of any company that is not a bank or bank holding company or from engaging in activities other than those of banking, managing or controlling banks or furnishing services to or performing services for its
subsidiaries, except that it may engage in, directly or indirectly, certain activities that the Federal Reserve Board has determined to be closely related to banking or managing and controlling banks as to be a proper incident thereto. In approving
acquisitions or the addition of activities, the Federal Reserve considers, among other things, whether the acquisition or the additional activities can reasonably be expected to produce benefits to the public, such as greater convenience, increased
competition, or gains in efficiency, that outweigh such possible adverse effects as undue concentration of resources, decreased or unfair competition, conflicts of interest or unsound banking practices.

Notwithstanding the foregoing, the Gramm-Leach-Bliley Act, effective March 11, 2000, eliminated the barriers to affiliations among
banks, securities firms, insurance companies and other financial service providers and permits bank holding companies to become financial holding companies and thereby affiliate with securities firms and insurance companies and engage in other
activities that are financial in nature. The Gramm-Leach- Bliley Act defines financial in nature to include securities underwriting, dealing and market making; sponsoring mutual funds and investment companies; insurance underwriting and
agency; merchant banking activities; and activities that the Federal Reserve Board has determined to be closely related to banking. No regulatory approval will be required for a financial holding company to acquire a company, other than a bank or
savings association, engaged in activities that are financial in nature or incidental to activities that are financial in nature, as determined by the Federal Reserve Board.

A bank holding company may become a financial holding company by filing a declaration with the Federal Reserve Board if each of its
subsidiary banks is well capitalized under the Federal Deposit Insurance Corporation Improvement Act prompt-corrective-action provisions, is well managed, and has at least a satisfactory rating under the Community Reinvestment Act of 1977
(CRA). The Company became a financial holding company on April 18, 2000.



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While the Federal Reserve Board is the umbrella regulator for financial holding
companies and has the power to examine banking organizations engaged in new activities, regulation and supervision of activities which are financial in nature or determined to be incidental to such financial activities will be handled along
functional lines. Accordingly, activities of subsidiaries of a financial holding company will be regulated by the agency or authorities with the most experience regulating that activity as it is conducted in a financial holding company.

Safe and Sound Banking Practices. Bank holding companies are not permitted to engage in unsafe and unsound banking practices. The
Federal Reserve Boards Regulation Y, for example, generally requires a holding company to give the Federal Reserve Board prior notice of any redemption or repurchase of its own equity securities, if the consideration to be paid, together with
the consideration paid for any repurchases or redemptions in the preceding year, is equal to 10% or more of the companys consolidated net worth. The Federal Reserve Board may oppose the transaction if it believes that the transaction would
constitute an unsafe or unsound practice or would violate any law or regulation. Depending upon the circumstances, the Federal Reserve Board could take the position that paying a dividend would constitute an unsafe or unsound banking practice.

The Federal Reserve Board has broad authority to prohibit activities of bank holding companies and their nonbanking
subsidiaries which represent unsafe and unsound banking practices or which constitute violations of laws or regulations, and can assess civil money penalties for certain activities conducted on a knowing and reckless basis, if those activities
caused a substantial loss to a depository institution. The penalties can be as high as $1.0 million for each day the activity continues.

Anti-Tying Restrictions. Bank holding companies and their affiliates are prohibited from tying the provision of certain services, such as extensions of credit, to other services offered by a
holding company or its affiliates.

Capital Adequacy Requirements. The Federal Reserve Board has adopted a system using
risk-based capital guidelines to evaluate the capital adequacy of bank holding companies. Under the guidelines, specific categories of assets are assigned different risk weights, based generally on the perceived credit risk of the asset. These risk
weights are multiplied by corresponding asset balances to determine a risk-weighted asset base. The guidelines require a minimum ratio of total capital to total risk-weighted assets of 8.0% (of which at least 4.0% is required to consist
of Tier 1 capital elements). Total capital is the sum of Tier 1 and Tier 2 capital. As of December 31, 2009, the Companys ratio of Tier 1 capital to total risk-weighted assets was 12.61% and its ratio of total capital to total
risk-weighted assets was 13.86%. Risk-weighted assets exclude intangible assets such as goodwill and core deposit intangibles.

In addition to the risk-based capital guidelines, the Federal Reserve Board uses a leverage ratio as an additional tool to evaluate the capital adequacy of bank holding companies. The leverage ratio is a companys Tier 1 capital
divided by its average total consolidated assets. Certain highly rated bank holding companies may maintain a minimum leverage ratio of 3.0%, but other bank holding companies are required to maintain a leverage ratio of 4.0%. As of December 31,
2009, the Companys leverage ratio was 6.47%.

The federal banking agencies risk-based and leverage capital ratios
are minimum supervisory ratios generally applicable to banking organizations that meet certain specified criteria. Banking organizations not meeting these criteria are expected to operate with capital positions well above the minimum ratios. The
federal bank regulatory agencies may set capital requirements for a particular banking organization that are higher than the minimum ratios when circumstances warrant. Federal Reserve Board guidelines also provide that banking organizations
experiencing internal growth or making acquisitions will be expected to maintain strong capital positions substantially above the minimum supervisory levels, without significant reliance on intangible assets.

On September 3, 2009, the United States Treasury Department issued a policy statement (the Treasury Policy Statement)
entitled Principles for Reforming the U.S. and International Regulatory Capital Framework for Banking Firms. The Treasury Policy Statement was developed in consultation with federal banking regulatory agencies and contemplates changes to
the existing regulatory capital regime and affects all regulated



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banking organizations and other systemically important institutions. The Treasury Policy Statement calls for, among other things, higher and stronger capital requirements for all banking firms.
The Treasury Policy Statement suggested that changes to the regulatory capital framework be phased in over a period of several years. The recommended schedule provides for a comprehensive international agreement by December 31, 2010, with the
implementation of reforms by December 31, 2012, although it does remain possible that federal banking regulatory agencies could officially adopt, or informally implement, new capital standards at an earlier date.

On December 17, 2009, the Basel Committee on Banking Supervision issued a set of proposals (the Capital Proposals) that
would significantly revise the definitions of Tier 1 capital and Tier 2 capital, with the most significant changes being to Tier 1 capital. Most notably, the Capital Proposals would disqualify certain structured capital instruments, such as trust
preferred securities, from Tier 1 capital status. The Capital Proposals would also re-emphasize that common equity is the predominant component of Tier 1 capital by adding a minimum common equity to risk-weighted assets ratio and requiring that
goodwill, general intangibles and certain other items that currently must be deducted from Tier 1 capital instead be deducted from common equity as a component of Tier 1 capital. The Capital Proposals also leave open the possibility that the
committee will recommend changes to the minimum Tier 1 capital and total capital ratios of 4.0% and 8.0%, respectively.

Concurrently with the release of the Capital Proposals, the committee also released a set of proposals related to liquidity risk exposure (the Liquidity Proposals). The Liquidity Proposals have three key elements, including the
implementation of (i) a liquidity coverage ratio designed to ensure that a bank maintains an adequate level of unencumbered, high-quality assets sufficient to meet the banks liquidity needs over a 30-day time horizon under an
acute liquidity stress scenario, (ii) a net stable funding ratio designed to promote more medium and long-term funding of the assets and activities of banks over a one-year time horizon, and (iii) a set of monitoring tools that
the committee indicates should be considered as the minimum types of information that banks should report to supervisors and that supervisors should use in monitoring the liquidity risk profiles of supervised entities.

Imposition of Liability for Undercapitalized Subsidiaries. Bank regulators are required to take prompt corrective action
to resolve problems associated with insured depository institutions whose capital declines below certain levels. In the event an institution becomes undercapitalized, it must submit a capital restoration plan. The capital restoration
plan will not be accepted by the regulators unless each company having control of the undercapitalized institution guarantees the subsidiarys compliance with the capital restoration plan up to a certain specified amount. Any such guarantee
from a depository institutions holding company is entitled to a priority of payment in bankruptcy.

The aggregate
liability of the holding company of an undercapitalized bank is limited to the lesser of 5% of the institutions assets at the time it became undercapitalized or the amount necessary to cause the institution to be adequately
capitalized. The bank regulators have greater power in situations where an institution becomes significantly or critically undercapitalized or fails to submit a capital restoration plan. For example, a bank holding
company controlling such an institution can be required to obtain prior Federal Reserve Board approval of proposed dividends, or might be required to consent to a consolidation or to divest the troubled institution or other affiliates.

Acquisitions by Bank Holding Companies. The BHCA requires every bank holding company to obtain the prior approval of the Federal
Reserve Board before it may acquire all or substantially all of the assets of any bank, or ownership or control of any voting shares of any bank, if after such acquisition it would own or control, directly or indirectly, more than 5% of the voting
shares of such bank. In approving bank acquisitions by bank holding companies, the Federal Reserve Board is required to consider, among other things, the financial and managerial resources and future prospects of the bank holding company and the
banks concerned, the convenience and needs of the communities to be served and various competitive factors.



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Control Acquisitions. The Change in Bank Control Act (CBCA) prohibits a
person or group of persons from acquiring control of a bank holding company unless the Federal Reserve Board has been notified and has not objected to the transaction. Under a rebuttable presumption established by the Federal Reserve
Board, the acquisition of 10% or more of a class of voting stock of a bank holding company with a class of securities registered under Section 12 of the Exchange Act, such as the Company, would, under the circumstances set forth in the
presumption, constitute acquisition of control of the Company.

In addition, the CBCA prohibits any entity from acquiring 25%
(5% in the case of an acquiror that is a bank holding company) or more of a bank holding companys or banks voting securities, or otherwise obtaining control or a controlling influence over a bank holding company or bank without the
approval of the Federal Reserve Board. In most circumstances, an entity that owns 25% or more of the voting securities of a banking organization owns enough of the capital resources to have a controlling influence over such banking organization for
purposes of the CBCA. On September 22, 2008, the Federal Reserve Board issued a policy statement on equity investments in bank holding companies and banks, which allows the Federal Reserve Board to generally be able to conclude that an
entitys investment is not controlling if the entity does not own in excess of 15% of the voting power and 33% of the total equity of the bank holding company or bank. Depending on the nature of the overall investment and the
capital structure of the banking organization, the Federal Reserve Board will permit, based on the policy statement, noncontrolling investments in the form of voting and nonvoting shares that represent in the aggregate (i) less than one-third
of the total equity of the banking organization (and less than one-third of any class of voting securities, assuming conversion of all convertible nonvoting securities held by the entity) and (ii) less than 15% of any class of voting securities
of the banking organization.

The Bank

The Bank is a Texas-chartered banking association, the deposits of which are insured by the DIF of the FDIC. The Bank is not a member of the Federal Reserve System; therefore, the Bank is subject to
supervision and regulation by the FDIC and the Texas Banking Department. Such supervision and regulation subject the Bank to special restrictions, requirements, potential enforcement actions and periodic examination by the FDIC and the Texas Banking
Department. Because the Federal Reserve Board regulates the Company, the Federal Reserve Board also has supervisory authority which directly affects the Bank.

Equivalence to National Bank Powers. The Texas Constitution, as amended in 1986, provides that a Texas-chartered bank has the same rights and privileges that are or may be granted to national banks
domiciled in Texas. To the extent that the Texas laws and regulations may have allowed state-chartered banks to engage in a broader range of activities than national banks, the Federal Deposit Insurance Corporation Improvement Act of 1991
(FDICIA) has operated to limit this authority. FDICIA provides that no state bank or subsidiary thereof may engage as principal in any activity not permitted for national banks, unless the institution complies with applicable capital
requirements and the FDIC determines that the activity poses no significant risk to the DIF. In general, statutory restrictions on the activities of banks are aimed at protecting the safety and soundness of depository institutions.

Financial Modernization. Under the Gramm-Leach-Bliley Act, a national bank may establish a financial subsidiary and engage, subject
to limitations on investment, in activities that are financial in nature, other than insurance underwriting as principal, insurance company portfolio investment, real estate development, real estate investment, annuity issuance and merchant banking
activities. To do so, a bank must be well capitalized, well managed and have a CRA rating of satisfactory or better. Subsidiary banks of a financial holding company or national banks with financial subsidiaries must remain well capitalized and well
managed in order to continue to engage in activities that are financial in nature without regulatory actions or restrictions, which could include divestiture of the financial in nature subsidiary or subsidiaries. In addition, a financial holding
company or a bank may not acquire a company that is engaged in activities that are financial in nature unless each of the subsidiary banks of the financial holding company or the bank has a CRA rating of satisfactory of better.



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Although the powers of state chartered banks are not specifically addressed in the
Gramm-Leach-Bliley Act, Texas-chartered banks such as the Bank, will have the same if not greater powers as national banks through the parity provision contained in the Texas Constitution.

Branching. Texas law provides that a Texas-chartered bank can establish a branch anywhere in Texas provided that the branch is
approved in advance by the Texas Banking Department. The branch must also be approved by the FDIC, which considers a number of factors, including financial history, capital adequacy, earnings prospects, character of management, needs of the
community and consistency with corporate powers.

Restrictions on Transactions with Affiliates and Insiders.
Transactions between the Bank and its nonbanking affiliates, including the Company, are subject to Section 23A of the Federal Reserve Act. In general, Section 23A imposes limits on the amount of such transactions, and also requires certain
levels of collateral for loans to affiliated parties. It also limits the amount of advances to third parties which are collateralized by the securities or obligations of the Company or its subsidiaries.

Affiliate transactions are also subject to Section 23B of the Federal Reserve Act which generally requires that certain transactions
between the Bank and its affiliates be on terms substantially the same, or at least as favorable to the Bank, as those prevailing at the time for comparable transactions with or involving other nonaffiliated persons. The Federal Reserve has also
issued Regulation W which codifies prior regulations under Sections 23A and 23B of the Federal Reserve Act and interpretive guidance with respect to affiliate transactions.

The restrictions on loans to directors, executive officers, principal shareholders and their related interests (collectively referred to
herein as insiders) contained in the Federal Reserve Act and Regulation O apply to all insured institutions and their subsidiaries and holding companies. These restrictions include limits on loans to one borrower and conditions that must
be met before such a loan can be made. There is also an aggregate limitation on all loans to insiders and their related interests. These loans cannot exceed the institutions total unimpaired capital and surplus, and the FDIC may determine that
a lesser amount is appropriate. Insiders are subject to enforcement actions for knowingly accepting loans in violation of applicable restrictions.

Restrictions on Distribution of Subsidiary Bank Dividends and Assets. Dividends paid by the Bank have provided a substantial part of the Companys operating funds and for the foreseeable
future it is anticipated that dividends paid by the Bank to the Company will continue to be the Companys principal source of operating funds. Capital adequacy requirements serve to limit the amount of dividends that may be paid by the Bank.
Under federal law, the Bank cannot pay a dividend if, after paying the dividend, the Bank will be undercapitalized. The FDIC may declare a dividend payment to be unsafe and unsound even though the Bank would continue to meet its capital
requirements after the dividend. Because the Company is a legal entity separate and distinct from its subsidiaries, its right to participate in the distribution of assets of any subsidiary upon the subsidiarys liquidation or reorganization
will be subject to the prior claims of the subsidiarys creditors. In the event of a liquidation or other resolution of an insured depository institution, the claims of depositors and other general or subordinated creditors are entitled to a
priority of payment over the claims of holders of any obligation of the institution to its shareholders, including any depository institution holding company (such as the Company) or any shareholder or creditor thereof.

Examinations. The FDIC periodically examines and evaluates state member banks. Based on such an evaluation, the FDIC may revalue the
assets of the institution and require that it establish specific reserves to compensate for the difference between the FDIC-determined value and the book value of such assets. The Texas Banking Department also conducts examinations of state banks
but may accept the results of a federal examination in lieu of conducting an independent examination. In addition, the FDIC and Texas Banking Department may elect to conduct a joint examination.

Audit Reports. Insured institutions with total assets of $500 million or more must submit annual audit reports prepared by
independent auditors to federal and state regulators. In some instances, the audit report of the



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##### Index to Financial Statements

institutions holding company can be used to satisfy this requirement. Auditors must receive examination reports, supervisory agreements and reports of enforcement actions. For institutions
with total assets of $1 billion or more, financial statements prepared in accordance with generally accepted accounting principles, managements certifications concerning responsibility for the financial statements, internal controls and
compliance with legal requirements designated by the FDIC, and an attestation by the auditor regarding the statements of management relating to the internal controls must be submitted. For institutions with total assets of more than $3 billion,
independent auditors may be required to review quarterly financial statements. FDICIA requires that independent audit committees be formed, consisting of outside directors only. The committees of such institutions must include members with
experience in banking or financial management, must have access to outside counsel, and must not include representatives of large customers.

Capital Adequacy Requirements. The FDIC has adopted regulations establishing minimum requirements for the capital adequacy of insured institutions. The FDIC may establish higher minimum
requirements if, for example, a bank has previously received special attention or has a high susceptibility to interest rate risk.

The FDICs risk-based capital guidelines generally require state banks to have a minimum ratio of Tier 1 capital to total risk-weighted assets of 4.0% and a ratio of total capital to total risk-weighted assets of 8.0%. The capital
categories have the same definitions for the Bank as for the Company. As of December 31, 2009, the Banks ratio of Tier 1 capital to total risk-weighted assets was 12.30% and its ratio of total capital to total risk-weighted assets was
13.55%.

The FDICs leverage guidelines require state banks to maintain Tier 1 capital of no less than 4.0% of average
total assets, except in the case of certain highly rated banks for which the requirement is 3.0% of average total assets. The Texas Banking Department has issued a policy which generally requires state chartered banks to maintain a leverage ratio
(defined in accordance with federal capital guidelines) of 5.0%. As of December 31, 2009, the Banks ratio of Tier 1 capital to average total assets (leverage ratio) was 6.31%.

Corrective Measures for Capital Deficiencies. The federal banking regulators are required to take prompt corrective
action with respect to capital-deficient institutions. Agency regulations define, for each capital category, the levels at which institutions are well-capitalized, adequately capitalized, under capitalized,
significantly under capitalized and critically under capitalized. A well-capitalized bank has a total risk-based capital ratio of 10.0% or higher; a Tier 1 risk-based capital ratio of 6.0% or higher; a leverage
ratio of 5.0% or higher; and is not subject to any written agreement, order or directive requiring it to maintain a specific capital level for any capital measure. An adequately capitalized bank has a total risk-based capital ratio of
8.0% or higher; a Tier 1 risk-based capital ratio of 4.0% or higher; a leverage ratio of 4.0% or higher (3.0% or higher if the bank was rated a composite 1 in its most recent examination report and is not experiencing significant growth); and does
not meet the criteria for a well capitalized bank. A bank is under capitalized if it fails to meet any one of the ratios required to be adequately capitalized. The Bank is classified as well-capitalized for purposes of the
FDICs prompt corrective action regulations.

In addition to requiring undercapitalized institutions to submit a capital
restoration plan, agency regulations contain broad restrictions on certain activities of undercapitalized institutions including asset growth, acquisitions, branch establishment and expansion into new lines of business. With certain exceptions, an
insured depository institution is prohibited from making capital distributions, including dividends, and is prohibited from paying management fees to control persons if the institution would be undercapitalized after any such distribution or
payment.

As an institutions capital decreases, the FDICs enforcement powers become more severe. A significantly
undercapitalized institution is subject to mandated capital raising activities, restrictions on interest rates paid and transactions with affiliates, removal of management and other restrictions. The FDIC has only very limited discretion in dealing
with a critically undercapitalized institution and is virtually required to appoint a receiver or conservator.



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Banks with risk-based capital and leverage ratios below the required minimums may also be
subject to certain administrative actions, including the termination of deposit insurance upon notice and hearing, or a temporary suspension of insurance without a hearing in the event the institution has no tangible capital.

Deposit Insurance Assessments. Substantially all of the deposits of the Bank are insured up to applicable limits by the DIF of the
FDIC and the Bank must pay deposit insurance assessments to the FDIC for such deposit insurance protection.

The FDIC
maintains the DIF by designating a reserve ratio between a range of 1.15% to 1.50%. If the reserve ratio falls below 1.15%, the FDIC must adopt a restoration plan that provides that the DIF will return to 1.15% generally within 5 years. If the
reserve ratio equals or exceeds 1.35%, the FDIC must determine whether to declare a dividend to DIF members. Generally and unless otherwise determined by the FDIC, if the reserve ratio equals or exceeds 1.35% the FDIC declares a dividend equal to
50% of the amount in excess of the amount required to maintain the reserve ratio at 1.35% and when the reserve ratio exceeds 1.50% the FDIC declares a dividend equal to the amount in excess of the amount required to maintain the reserve ration at
1.50%. The designated reserve ratio is currently set at 1.25%. The FDIC has the discretion to price deposit insurance according to the risk for all insured institutions regardless of the level of the reserve ratio.

The DIF reserve ratio is maintained by assessing depository institutions an insurance premium based upon statutory factors that include the
balance of insured deposits as well as the degree of risk the institution poses to the insurance fund. Under a risk-based assessment system required by the FDICIA, FDIC-insured depository institutions pay quarterly insurance premiums at rates based
on their risk classification. Institutions assigned to higher-risk classifications (that is, institutions that pose a greater risk of loss to their respective deposit insurance funds) pay assessments at higher rates than institutions that pose a
lower risk. An institutions risk classification is assigned based on its capital levels and the level of supervisory concern the institution poses to regulators. An institutions risk assignment includes assignment to Risk Category I, II,
III, or IV.

On January 1, 2009, the FDIC increased the DIF assessment rates as part of the FDICs DIF restoration
plan. Effective April 1, 2009, total base assessment rates range from 7 to 24 basis points for Risk Category I institutions, 17 to 43 basis points for Risk Category II institutions, 27 to 58 basis points for Risk Category III institutions, and
40 to 77.5 basis points for Risk Category IV institutions. Assessments are paid quarterly by all institutions and are based upon the assessment base that an institution reports at the end of that quarter. Risk assessments remain in effect for future
assessment periods until changed by the FDIC.

In May 2009, the FDIC issued a final rule which levied a special assessment
applicable to all insured depository institutions totaling 5 basis points of each institutions total assets less Tier 1 capital as of June 30, 2009, not to exceed 10 basis points of domestic deposits. The special assessment was paid
September 30, 2009 and was part of the FDICs efforts to rebuild the DIF. The Companys deposit insurance expense during 2009 included approximately $4.2 million recognized in the second quarter related to the special assessment.

In November 2009, the FDIC issued a rule that required all insured depository institutions, with limited exceptions, to
prepay their estimated quarterly risk-based assessments for the fourth quarter of 2009 and for all of 2010, 2011 and 2012 on December 30, 2009. The assessment was calculated by taking the institutions actual September 30, 2009
assessment base and increasing it quarterly by an estimated 5% annual growth rate through the end of 2012. The FDIC also adopted a uniform three basis point increase in assessment rates effective on January 1, 2011. Under GAAP accounting rules,
the prepaid assessments would not immediately affect a banks earnings. Each institution records the entire amount of the prepaid assessment as a prepaid expense, an asset on its balance sheet, as of December 30, 2009, the date the payment
was made. As of December 31, 2009, and each quarter thereafter, each institution records an expense for its quarterly assessment invoiced on its quarterly statement and an offsetting credit to the prepaid assessment until the asset is
exhausted. The FDIC would also have the authority to exercise its discretion as supervisor and insurer to exempt an institution from the prepayment requirement if the FDIC determines that the prepayment would significantly impair the
institutions liquidity or would otherwise create significant hardship.



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##### Index to Financial Statements

In December 2009, the Company paid $35.6 million in prepaid risk-based assessments, which
included $2.2 million related to the fourth quarter of 2009 that would have otherwise been payable in the first quarter of 2010. The $2.2 million is included as a noninterest expense under regulatory assessments and FDIC insurance for 2009. The
remaining balance of pre-paid assessments is included in other assets in the accompanying consolidated balance sheet as of December 31, 2009.

Temporary Liquidity Guarantee Program. In November 2008, the Board of Directors of the FDIC adopted a final rule relating to the Temporary Liquidity Guarantee Program (TLG Program).
Under the TLG Program, the FDIC will (i) guarantee, through the earlier of maturity or December 31, 2012 (extended from June 30, 2012 by subsequent amendment), certain newly issued senior unsecured debt issued by participating
institutions on or after October 14, 2008, and before October 31, 2009 (extended from June 30, 2009 by subsequent amendment) and (ii) provide full FDIC deposit insurance coverage for non-interest bearing transaction deposit
accounts, Negotiable Order of Withdrawal (NOW) accounts paying less than 0.5% interest per annum and Interest on Lawyers Trust Accounts held at participating FDIC insured institutions through June 30, 2010 (extended from
December 31, 2009, subject to an opt-out provision, by subsequent amendment). The Company elected to participate in both guarantee programs and did not opt out of the six-month extension of the transaction account guarantee program. The Company
does not intend to issue any senior unsecured dept under the TLG Program. Coverage under the TLG Program was available for the first 30 days without charge. The fee assessment for deposit insurance coverage was 10 basis points per quarter during
2009 on amounts in covered accounts exceeding $250,000. During the six-month extension period in 2010, the fee assessment increases to 15 basis points per quarter for institutions that are in Risk Category 1 of the risk-based premium system.

Brokered Deposit Restrictions. Adequately capitalized institutions cannot accept, renew or roll over brokered deposits
except with a waiver from the FDIC, and are subject to restrictions on the interest rates that can be paid on any deposits. Undercapitalized institutions may not accept, renew, or roll over brokered deposits.

Concentrated Commercial Real Estate Lending Regulations. The federal banking agencies, including the FDIC, have promulgated guidance
governing financial institutions with concentrations in commercial real estate lending. The guidance provides that a bank has a concentration in commercial real estate lending if (i) total reported loans for construction, land development, and
other land represent 100% or more of total capital or (ii) total reported loans secured by multifamily and non-farm residential properties and loans for construction, land development, and other land represent 300% or more of total capital and
the banks commercial real estate loan portfolio has increased 50% or more during the prior 36 months. Owner occupied loans are excluded from this second category. If a concentration is present, management must employ heightened risk management
practices that address the following key elements: including board and management oversight and strategic planning, portfolio management, development of underwriting standards, risk assessment and monitoring through market analysis and stress
testing, and maintenance of increased capital levels as needed to support the level of commercial real estate lending.

Cross-Guarantee Provisions. The Financial Institutions Reform, Recovery and Enforcement Act of 1989 (FIRREA) contains a cross-guarantee provision which generally makes commonly controlled insured depository
institutions liable to the FDIC for any losses incurred in connection with the failure of a commonly controlled depository institution.

Community Reinvestment Act. The CRA and the regulations issued thereunder are intended to encourage banks to help meet the credit needs of their service area, including low and moderate income
neighborhoods, consistent with the safe and sound operations of the banks. These regulations also provide for regulatory assessment of a banks record in meeting the needs of its service area when considering applications to establish branches,
merger applications and applications to acquire the assets and assume the liabilities of another bank. FIRREA requires federal banking agencies to make public a rating of a banks performance under the CRA. In the case of a bank holding
company, the CRA performance record of the banks involved in the transaction are reviewed in connection with the filing of an application to acquire ownership or control of shares or assets of a bank or to merge with any other bank holding company.
An unsatisfactory record can substantially delay or block the transaction.



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##### Index to Financial Statements

Consumer Laws and Regulations. In addition to the laws and regulations discussed
herein, the Bank is also subject to certain consumer laws and regulations that are designed to protect consumers in transactions with banks. While the list set forth herein is not exhaustive, these laws and regulations include the Truth in Lending
Act, the Truth in Savings Act, the Electronic Funds Transfer Act, the Expedited Funds Availability Act, the Equal Credit Opportunity Act, and the Fair Housing Act, among others. These laws and regulations mandate certain disclosure requirements and
regulate the manner in which financial institutions must deal with customers when taking deposits or making loans to such customers. The Bank must comply with the applicable provisions of these consumer protection laws and regulations as part of
their ongoing customer relations.

Anti-Money Laundering and Anti-Terrorism Legislation. Congress enacted the Bank
Secrecy Act of 1970 (BSA) to require financial institutions, including the Company and the Bank, to maintain certain records and to report certain transactions to prevent such institutions from being used to hide money derived from
criminal activity and tax evasion. The BSA establishes, among other things, (i) record keeping requirements to assist government enforcement agencies in tracing financial transactions and flow of funds; (ii) reporting requirements for
Suspicious Activity Reports and Currency Transaction Reports to assist government enforcement agencies in detecting patterns of criminal activity; (iii) enforcement provisions authorizing criminal and civil penalties for illegal activities and
violations of the BSA and its implementing regulations; and (iv) safe harbor provisions that protect financial institutions from civil liability for their cooperative efforts.

Title III of the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001
(Patriot Act) enacted in October 2001 amended the BSA and incorporates anti-terrorist financing provisions into the requirements of the BSA and its implementing regulations. Among other things, the Patriot Act requires all financial
institutions, including the Company and the Bank, to institute and maintain a risk-based anti-money laundering compliance program that (i) includes a customer identification program, (ii) provides for information sharing with law
enforcement and between certain financial institutions by means of an exemption from the privacy provisions of the Gramm-Leach-Bliley Act, (iii) prohibits U.S. banks and broker-dealers from maintaining accounts with foreign shell
banks, (iv) establishes due diligence and enhanced due diligence requirements for certain foreign correspondent banking and foreign private banking accounts and (v) imposes additional record keeping requirements for certain correspondent
banking arrangements. The Patriot Act also grants broad authority to the Secretary of the Treasury to take actions to combat money laundering, and federal bank regulators are required to evaluate the effectiveness of an applicant in combating money
laundering in determining whether to approve any application submitted by a financial institution. The Company and the Bank have adopted policies, procedures and controls designed to comply with the BSA and the Patriot Act.

The Department of the Treasurys Office of Foreign Asset Control (OFAC) administers and enforces economic and trade
sanctions against targeted foreign countries, entities and individuals based on U.S. foreign policy and national security goals. As a result, financial institutions, including the Company and the Bank, must scrutinize transactions to ensure that
they do not represent obligations of, or ownership interests in, entities owned or controlled by sanctioned targets. In addition, the Company and the Bank restrict transactions with certain targeted countries except as permitted by OFAC.

Privacy. In addition to expanding the activities in which banks and bank holding companies may engage, the Gramm-Leach-Bliley Act
also imposed new requirements on financial institutions with respect to customer privacy. The Gramm-Leach-Bliley Act generally prohibits disclosure of customer information to non-affiliated third parties unless the customer has been given the
opportunity to object and has not objected to such disclosure. Financial institutions are further required to disclose their privacy policies to customers annually. Financial institutions, however, will be required to comply with state law if it is
more protective of customer privacy than the Gramm-Leach-Bliley Act.



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##### Index to Financial Statements

Legislative Initiatives

In light of current conditions and the market outlook for continuing weak economic conditions, regulators have increased their focus on the
regulation of financial institutions. A number of government initiatives, including those described below, designed to respond to the current conditions have been introduced recently and proposals for legislation that could substantially intensify
the regulation of financial institutions are expected to be introduced in Congress and state legislatures. Such initiatives may change banking statutes and the operating environment of the Company and the Bank in substantial and unpredictable ways.
The Company cannot determine the ultimate effect that any potential legislation, if enacted, or implementing regulations with respect thereto, would have, upon the financial condition or results of operations of the Company or the Bank. A change in
statutes, regulations or regulatory policies applicable to the Company or the Bank could have a material effect on the financial condition, results of operations or business of the Company and the Bank.

Regulatory Reform. In June 2009, the U.S. Presidents administration proposed a wide range of regulatory reforms that, if
enacted, may have significant effects on the financial services industry in the United States. Significant aspects of the administrations proposals that may affect the Company included, among other things, proposals: (i) to reassess and
increase capital requirements for banks and bank holding companies and examine the types of instruments that qualify as regulatory capital; (ii) to expand the current eligibility requirements for financial holding companies such as the Company
so that the financial holding company must be well capitalized and well managed on a consolidated basis; (iii) to create a federal consumer financial protection agency to be the primary federal consumer protection
supervisor with broad examination, supervision and enforcement authority with respect to consumer financial products and services; and (iv) to further limit the ability of banks to engage transactions with affiliates.

Separate comprehensive financial reform bills intended to address the proposals set forth by the administration were introduced in both
houses of Congress in the second half of 2009 and remain under review by both the U.S. House of Representatives and the U.S. Senate. The Company cannot predict whether or in what form further legislation or regulations may be adopted or the extent
to which the Company may be affected thereby.

Incentive Compensation. On October 22, 2009, the Federal Reserve
issued a comprehensive proposal on incentive compensation policies (the Incentive Compensation Proposal) intended to ensure that the incentive compensation policies of banking organizations do not undermine the safety and soundness of
such organizations by encouraging excessive risk-taking. The Incentive Compensation Proposal, which covers all employees that have the ability to materially affect the risk profile of an organization, either individually or as part of a group, is
based upon the key principles that a banking organizations incentive compensation arrangements should (i) provide incentives that do not encourage risk-taking beyond the organizations ability to effectively identify and manage
risks, (ii) be compatible with effective internal controls and risk management, and (iii) be supported by strong corporate governance, including active and effective oversight by the organizations board of directors. Banking
organizations are instructed to begin an immediate review of their incentive compensation policies to ensure that they do not encourage excessive risk-taking and implement corrective programs as needed. Where there are deficiencies in the incentive
compensation arrangements, they must be immediately addressed. The Federal Reserve will review, as part of the regular, risk-focused examination process, the incentive compensation arrangements of banking organizations, such as the Company, that are
not large, complex banking organizations. These reviews will be tailored to each organization based on the scope and complexity of the organizations activities and the prevalence of incentive compensation arrangements. The findings
of the supervisory initiatives will be included in reports of examination. Deficiencies will be incorporated into the organizations supervisory ratings, which can affect the organizations ability to make acquisitions and take other
actions. Enforcement actions may be taken against a banking organization if its incentive compensation arrangements, or related risk-management control or governance processes, pose a risk to the organizations safety and soundness and the
organization is not taking prompt and effective measures to correct the deficiencies.



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##### Index to Financial Statements

The scope and content of the U.S. banking regulators policies on executive
compensation are continuing to develop and are likely to continue evolving in the near future. It cannot be determined at this time whether compliance with such policies will adversely affect the Companys ability to hire, retain and motivate
its key employees.

Enforcement Powers of Federal and State Banking Agencies

The federal banking agencies have broad enforcement powers, including the power to terminate deposit insurance, impose substantial fines and
other civil and criminal penalties, and appoint a conservator or receiver. Failure to comply with applicable laws, regulations, and supervisory agreements could subject the Company or the Bank and their subsidiaries, as well as officers, directors,
and other institution-affiliated parties of these organizations, to administrative sanctions and potentially substantial civil money penalties. In addition to the grounds discussed above under The BankCorrective Measures for
Capital Deficiencies, the appropriate federal banking agency may appoint the FDIC as conservator or receiver for a banking institution (or the FDIC may appoint itself, under certain circumstances) if any one or more of a number of
circumstances exist, including, without limitation, the fact that the banking institution is undercapitalized and has no reasonable prospect of becoming adequately capitalized; fails to become adequately capitalized when required to do so; fails to
submit a timely and acceptable capital restoration plan; or materially fails to implement an accepted capital restoration plan. The Texas Department of Banking also has broad enforcement powers over the Bank, including the power to impose orders,
remove officers and directors, impose fines and appoint supervisors and conservators.

Effect on Economic Environment

The policies of regulatory authorities, including the monetary policy of the Federal Reserve Board, have a significant
effect on the operating results of bank holding companies and their subsidiaries. Among the means available to the Federal Reserve Board to affect the money supply are open market operations in U.S. government securities, changes in the discount
rate on member bank borrowings, and changes in reserve requirements against member bank deposits. These means are used in varying combinations to influence overall growth and distribution of bank loans, investments and deposits, and their use may
affect interest rates charged on loans or paid for deposits.

Federal Reserve Board monetary policies have materially affected
the operating results of commercial banks in the past and are expected to continue to do so in the future. The nature of future monetary policies and the effect of such policies on the business and earnings of the Company and its subsidiaries cannot
be predicted.

ITEM 1A. RISK FACTORS

An investment in the Companys Common Stock involves risks. The following is a description of the material risks and uncertainties that
the Company believes affect its business and an investment in the Common Stock. Additional risks and uncertainties that the Company is unaware of, or that it currently deems immaterial, also may become important factors that affect the Company and
its business. If any of the risks described in this Annual Report on Form 10-K were to occur, the Companys financial condition, results of operations and cash flows could be materially and adversely affected. If this were to happen, the value
of the Common Stock could decline significantly and you could lose all or part of your investment.

Risks Associated with the
Companys Business

If the Company is not able to continue its historical levels of growth, it may not be able to maintain its
historical earnings trends.

To achieve its past levels of growth, the Company has initiated internal growth programs
and completed a number of acquisitions. The Company may not be able to sustain its historical rate of growth or may not be able



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##### Index to Financial Statements

to grow at all. In addition, the Company may not be able to obtain the financing necessary to fund additional growth and may not be able to find suitable candidates for acquisition. Various
factors, such as economic conditions and competition, may impede or prohibit the opening of new banking centers. Further, the Company may be unable to attract and retain experienced bankers, which could adversely affect its internal growth. If the
Company is not able to continue its historical levels of growth, it may not be able to maintain its historical earnings trends.

If the
Company is unable to manage its growth effectively, its operations could be negatively affected.

Companies that
experience rapid growth face various risks and difficulties, including:



| |  |  | finding suitable markets for expansion;
| | - |  | ---------------------------------------



| |  |  | finding suitable candidates for acquisition;
| | - |  | --------------------------------------------



| |  |  | attracting funding to support additional growth;
| | - |  | ------------------------------------------------



| |  |  | maintaining asset quality;
| | - |  | --------------------------



| |  |  | attracting and retaining qualified management; and
| | - |  | --------------------------------------------------



| |  |  | maintaining adequate regulatory capital.
| | - |  | ----------------------------------------

In addition, in order to manage its growth and maintain adequate information and reporting systems within its organization, the Company must identify, hire and retain additional qualified associates,
particularly in the accounting and operational areas of its business.

If the Company does not manage its growth effectively,
its business, financial condition, results of operations and future prospects could be negatively affected, and the Company may not be able to continue to implement its business strategy and successfully conduct its operations.

Difficult market conditions and economic trends have adversely affected the banking industry and could adversely affect the Companys business,
financial condition, results of operations and cash flows.

The Company is operating in a challenging and uncertain
economic environment, including generally uncertain conditions nationally and locally in its markets. Financial institutions continue to be affected by declines in the real estate market that have negatively impacted the credit performance of 1-4
family residential, construction and land development and commercial real estate loans and resulted in significant write-downs of assets by many financial institutions. Concerns over the stability of the financial markets and the economy have
resulted in decreased lending by financial institutions to their customers and to each other. The Company retains direct exposure to the residential and commercial real estate markets, and it is affected by these events. Continued declines in real
estate values, home sales volumes and financial stress on borrowers as a result of the uncertain economic environment, including job losses, could have an adverse affect on the Companys borrowers or their customers, which could adversely
affect the Companys business, financial condition, results of operations and cash flows.

The Companys ability to
assess the creditworthiness of customers and to estimate the losses inherent in its loan portfolio is made more complex by these difficult market and economic conditions. The Company also expects to face increased regulation and government oversight
as a result of these downward trends. This increased government action may increase the Companys costs and limit its ability to pursue certain business opportunities. In addition, the Company may be required to pay even higher FDIC deposit
insurance assessments than the recently increased level, because financial institution failures resulting from the depressed market conditions and other factors have depleted and may continue to deplete the DIF and reduce its ratio of reserves to
insured deposits.



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##### Index to Financial Statements

A prolonged national economic recession or further deterioration of these conditions in the
Companys markets could drive losses beyond that which is provided for in its allowance for credit losses and result in the following consequences:



| |  |  | increases in loan delinquencies;
| | - |  | --------------------------------



| |  |  | increases in nonperforming assets and foreclosures;
| | - |  | ---------------------------------------------------



| |  |  | decreases in demand for the Companys products and services, which could adversely affect its liquidity position; and
| | - |  | ---------------------------------------------------------------------------------------------------------------------



| |  |  | decreases in the value of the collateral securing the Companys loans, especially real estate, which could reduce customers borrowing power.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------

While economic conditions in the State of Texas and the U.S. are showing signs of recovery, there can be no
assurance that these difficult conditions will continue to improve. A worsening of these conditions would likely exacerbate the adverse effects of these difficult economic conditions on the Company, its customers and the other financial institutions
in its market. As a result, the Company may experience increases in foreclosures, delinquencies and customer bankruptcies, as well as more restricted access to funds.

Liquidity risk could impair the Companys ability to fund operations and jeopardize its financial condition.

Liquidity is essential to the Companys business. An inability to raise funds through deposits, borrowings, the sale of loans and
other sources could have a substantial negative effect on its liquidity. The Companys access to funding sources in amounts adequate to finance its activities or on terms which are acceptable to it could be impaired by factors that affect the
Company specifically or the financial services industry or economy in general. Factors that could detrimentally impact the Companys access to liquidity sources include a decrease in the level of its business activity as a result of a downturn
in the markets in which its loans are concentrated or adverse regulatory action against it. The Companys ability to borrow could also be impaired by factors that are not specific to it, such as a disruption in the financial markets or negative
views and expectations about the prospects for the financial services industry in light of the recent turmoil faced by banking organizations and the continued deterioration in credit markets.

If the Company is unable to identify and acquire other financial institutions and successfully integrate its acquired businesses, its business and
earnings may be negatively affected.

The market for acquisitions remains highly competitive, and the Company may be
unable to find acquisition candidates in the future that fit its acquisition and growth strategy. To the extent that the Company is unable to find suitable acquisition candidates, an important component of its growth strategy may be lost.

Acquisitions of financial institutions involve operational risks and uncertainties and acquired companies may have unforeseen
liabilities, exposure to asset quality problems, key employee and customer retention problems and other problems that could negatively affect the Companys organization. The Company may not be able to complete future acquisitions and, if
completed, the Company may not be able to successfully integrate the operations, management, products and services of the entities that it acquires and eliminate redundancies. The integration process could result in the loss of key employees or
disruption of the combined entitys ongoing business or inconsistencies in standards, controls, procedures and policies that adversely affect the Companys ability to maintain relationships with customers and employees or achieve the
anticipated benefits of the transaction. The integration process may also require significant time and attention from the Companys management that they would otherwise direct at servicing existing business and developing new business. The
Companys failure to successfully integrate the entities it acquires into its existing operations may increase its operating costs significantly and adversely affect its business and earnings.



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##### Index to Financial Statements

The Companys dependence on loans secured by real estate subjects it to risks relating to
fluctuations in the real estate market and related interest rates and legislation that could require additional capital and could adversely affect its financial condition, results of operations and cash flows.

Approximately 83.5% of the Companys total loans as of December 31, 2009 consisted of loans included in the real estate loan
portfolio with 16.5% in construction and land development, 24.5% in residential real estate and 42.5% in commercial real estate. The real estate collateral in each case provides an alternate source of repayment in the event of default by the
borrower and may deteriorate in value during the time the credit is extended. A weakening of the real estate market in the Companys primary market areas could have an adverse effect on the demand for new loans, the ability of borrowers to
repay outstanding loans, the value of real estate and other collateral securing the loans and the value of real estate owned by the Company. If real estate values decline, it is also more likely that the Company would be required to increase its
allowance for credit losses, which could adversely affect its financial condition, results of operations and cash flows.

As
of December 31, 2009, the Company had $557.2 million or 16.5% of total loans in construction and land development loans. Construction loans are subject to risks during the construction phase that are not present in standard residential real
estate and commercial real estate loans. These risks include:



| |  |  | the viability of the contractor;
| | - |  | --------------------------------



| |  |  | the contractors ability to complete the project, to meet deadlines and time schedules and to stay within cost estimates; and
| | - |  | -----------------------------------------------------------------------------------------------------------------------------



| |  |  | concentrations of such loans with a single contractor and its affiliates.
| | - |  | -------------------------------------------------------------------------

Real estate construction loans also present risks of default in the event of declines in property values or volatility in the real estate
market during the construction phase. If the Company is forced to foreclose on a project prior to completion, it may not be able to recover the entire unpaid portion of the loan, may be required to fund additional amounts to complete a project and
may have to hold the property for an indeterminate amount of time. If any of these risks were to occur, it could adversely affect the Companys financial condition, results of operations and cash flows.

The federal banking agencies have issued guidance regarding high concentrations of commercial real estate loans within bank loan portfolios.
The guidance requires financial institutions that exceed certain levels of commercial real estate lending compared with their total capital to maintain heightened risk management practices that address the following key elements: including board and
management oversight and strategic planning, portfolio management, development of underwriting standards, risk assessment and monitoring through market analysis and stress testing, and maintenance of increased capital levels as needed to support the
level of commercial real estate lending. If there is any deterioration in the Companys commercial mortgage or construction and land development portfolios or if its regulators conclude that the Company has not implemented appropriate risk
management practices, it could adversely affect the Companys business and result in a requirement of increased capital levels, and such capital may not be available at that time.

The Companys business is subject to interest rate risk and fluctuations in interest rates may adversely affect its earnings and capital levels.

The majority of the Companys assets are monetary in nature and, as a result, the Company is subject to significant risk from changes in
interest rates. Changes in interest rates can impact the Companys net interest income as well as the valuation of its assets and liabilities. The Companys earnings and cash flows are significantly dependent on its net interest income.
Net interest income is the difference between the interest income earned on loans, investment securities and other interest-earning assets and the interest expense paid on deposits, borrowings and other interest-bearing liabilities. Therefore, any
change in general market interest rates, such as a change in the monetary policy of the Federal Reserve Board or otherwise, can have a significant effect on the Companys net interest income. The Companys assets and liabilities may react
differently to changes in overall market rates or conditions because there may be mismatches between the repricing or maturity characteristics of the assets and liabilities.



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##### Index to Financial Statements

The Companys profitability depends significantly on local economic conditions.

The Companys success depends primarily on the general economic conditions of the primary markets in Texas in
which it operates and where its loans are concentrated. Unlike larger banks that are more geographically diversified, the Company provides banking and financial services to customers primarily in the greater Houston and Dallas metropolitan areas and
in the east, central, north central, south central and southeast areas of Texas. The local economic conditions in these areas have a significant impact on the Companys commercial, real estate and construction and land development loans, the
ability of its borrowers to repay their loans and the value of the collateral securing these loans. In addition, if the population or income growth in the Companys market areas is slower than projected, income levels, deposits and housing
starts could be adversely affected and could result in a reduction of the Companys expansion, growth and profitability. Although economic conditions in Texas have not deteriorated to the same extent as in other areas, such conditions could
decline further. If the Companys market areas experience a downturn or a recession for a prolonged period of time, the Company would likely experience significant increases in nonperforming loans, which could lead to operating losses, impaired
liquidity and eroding capital. A significant decline in general economic conditions, caused by inflation, recession, acts of terrorism, outbreak of hostilities or other international or domestic calamities, unemployment or other factors could impact
these local economic conditions and could negatively affect the Companys financial condition, results of operations and cash flows.

The Companys allowance for credit losses may not be sufficient to cover actual credit losses, which could adversely affect its earnings.

As a lender, the Company is exposed to the risk that its loan customers may not repay their loans according to the terms of these loans and the collateral securing the payment of these loans may be
insufficient to fully compensate the Company for the outstanding balance of the loan plus the costs to dispose of the collateral. Management makes various assumptions and judgments about the collectibility of the Companys loan portfolio,
including the diversification by industry of its commercial loan portfolio, the amount of nonperforming assets and related collateral, the volume, growth and composition of its loan portfolio, the effects on the loan portfolio of current economic
indicators and their probable impact on borrowers and the evaluation of its loan portfolio through its internal loan review process and other relevant factors.

The Company maintains an allowance for credit losses in an attempt to cover estimated losses inherent in its loan portfolio. Additional credit losses will likely occur in the future and may occur at a
rate greater than the Company has experienced to date. In determining the size of the allowance, the Company relies on an analysis of its loan portfolio, its historical loss experience and its evaluation of general economic conditions. Continuing
deterioration in economic conditions affecting borrowers, new information regarding existing loans, identification of additional problem loans and other factors, both within and outside of the Companys control, may require an increase in the
allowance for credit losses. If the Companys assumptions prove to be incorrect or if it experiences significant loan losses in future periods, its current allowance may not be sufficient to cover actual loan losses and adjustments may be
necessary to allow for different economic conditions or adverse developments in its loan portfolio. A material addition to the allowance could cause net income and possibly, capital, to decrease.

In addition, federal and state regulators periodically review the Companys allowance for credit losses and may require the Company to
increase its provision for credit losses or recognize further charge-offs, based on judgments different than those of the Companys management. Any increase in the Companys allowance for credit losses or charge-offs as required by these
regulatory agencies could have a material adverse effect on the Companys operating results and financial condition.



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##### Index to Financial Statements

The small to medium-sized businesses that the Company lends to may have fewer resources to weather a
downturn in the economy, which may impair a borrowers ability to repay a loan to the Company that could materially harm the Companys operating results.

The Company targets its business development and marketing strategy primarily to serve the banking and financial services needs of small to medium-sized businesses. These small to medium-sized businesses
frequently have smaller market share than their competition, may be more vulnerable to economic downturns, often need substantial additional capital to expand or compete and may experience significant volatility in operating results. Any one or more
of these factors may impair the borrowers ability to repay a loan. In addition, the success of a small to medium-sized business often depends on the management talents and efforts of one or two persons or a small group of persons, and the
death, disability or resignation of one or more of these persons could have a material adverse impact on the business and its ability to repay a loan. Economic downturns and other events that negatively impact the Companys market areas could
cause the Company to incur substantial credit losses that could negatively affect the Companys results of operations and financial condition.

If the goodwill that the Company recorded in connection with a business acquisition becomes impaired, it could require charges to earnings, which would have a negative impact on the Companys financial condition, results of
operations and cash flows.

Goodwill represents the amount of acquisition cost over the fair value of net assets the
Company acquired in the purchase of another financial institution. The Company reviews goodwill for impairment at least annually, or more frequently if events or changes in circumstances indicate the carrying value of the asset might be impaired.

The Company determines impairment by comparing the implied fair value of the reporting unit goodwill with the carrying amount
of that goodwill. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. Any such adjustments are reflected in the Companys
results of operations in the periods in which they become known. At December 31, 2009, the Companys goodwill totaled $877.0 million. While the Company has not recorded any such impairment charges since it initially recorded the goodwill,
there can be no assurance that the Companys future evaluations of goodwill will not result in findings of impairment and related write-downs, which may have a material adverse effect on its financial condition, results of operations and cash
flows.

The Company may be required to pay significantly higher FDIC deposit insurance assessments in the future.

Recent insured depository institution failures, as well as deterioration in banking and economic conditions generally, have significantly
increased the loss provisions of the FDIC, resulting in a decline in the designated reserve ratio of the FDIC to historical lows. The FDIC expects a higher rate of insured depository institution failures in the next few years compared to recent
years; thus, the reserve ratio may continue to decline. In addition, the deposit insurance limit on FDIC deposit insurance coverage generally has increased to $250,000 through December 31, 2013. These developments will cause the premiums
assessed on the Company by the FDIC to increase and materially increase its noninterest expense.

On January 1, 2009, the
FDIC increased the DIF assessment rates as part of the FDICs DIF restoration plan. Effective April 1, 2009, the assessment rate applicable to the Company increased to 7 to 24 basis points per $100 of deposits. In May 2009, the FDIC issued
a final rule which levied a special assessment applicable to all insured depository institutions totaling 5 basis points of each institutions total assets less Tier 1 capital as of June 30, 2009, not to exceed 10 basis points of domestic
deposits. The Company paid a special assessment of $4.2 million on September 30, 2009.

In November 2009, the FDIC issued
a rule that required all insured depository institutions, with limited exceptions, to prepay their estimated quarterly risk-based assessments for the fourth quarter of 2009 and for all of 2010, 2011 and 2012 on December 30, 2009. The assessment
was calculated by taking the institutions actual September 30, 2009 assessment base and adjusting it quarterly by an estimated 5% annual growth rate through



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##### Index to Financial Statements

the end of 2012. Under GAAP accounting rules, the prepaid assessments would not immediately affect a banks earnings. Each institution records the entire amount of the prepaid assessment as
a prepaid expense, an asset on its balance sheet, as of December 30, 2009, the date the payment was made. As of December 31, 2009, and each quarter thereafter, each institution records an expense for its quarterly assessment invoiced on
its quarterly statement and an offsetting credit to the prepaid assessment until the asset is exhausted. The FDIC also adopted a uniform three basis point increase in assessment rates effective on January 1, 2011.

These higher FDIC assessment rates will have an adverse impact on the Companys results of operations. For the year ended
December 31, 2009, the Companys FDIC insurance related costs were $13.7 million compared with $1.8 million and $1.0 million for the years ended December 31, 2008 and 2007, respectively. The Company is unable to predict the impact in
future periods, including whether and when additional special assessments may occur.

The Company may be adversely affected by the
soundness of other financial institutions.

Financial services institutions are interrelated as a result of trading,
clearing, counterparty, or other relationships. The Company has exposure to many different industries and counterparties, and routinely executes transactions with counterparties in the financial services industry, including commercial banks, brokers
and dealers, investment banks, and other institutional clients. Many of these transactions expose the Company to credit risk in the event of a default by a counterparty or client. In addition, the Companys credit risk may be exacerbated when
the collateral held by the Company cannot be realized upon or is liquidated at prices not sufficient to recover the full amount of the credit or derivative exposure due to the Company. Any such losses could have a material adverse effect on the
Companys financial condition, results of operations and cash flows.

The Company may need to raise additional capital in the
future and such capital may not be available when needed or at all.

The Company may need to raise additional capital
in the future to provide it with sufficient capital resources and liquidity to meet its commitments and business needs. In addition, the Company may elect to raise additional capital to support its business or to finance acquisitions, if any. The
Companys ability to raise additional capital, if needed, will depend on, among other things, conditions in the capital markets at that time, which are outside of its control, and its financial performance. The ongoing liquidity crisis and the
loss of confidence in financial institutions may increase the Companys cost of funding and limit its access to some of its customary sources of capital, including, but not limited to, inter-bank borrowings, repurchase agreements and borrowings
from the discount window of the Federal Reserve.

The Company cannot assure you that such capital will be available to it on
acceptable terms or at all. Any occurrence that may limit its access to the capital markets, such as a decline in the confidence of investors, depositors of the Banks or counterparties participating in the capital markets, may adversely affect the
Companys capital costs and its ability to raise capital and, in turn, its liquidity. An inability to raise additional capital on acceptable terms when needed could have a material adverse effect on the Companys business, financial
condition and results of operations.

An interruption in or breach in security of the Companys information systems may result in a
loss of customer business and have an adverse effect on the Companys results of operations, financial condition and cash flows.

The Company relies heavily on communications and information systems to conduct its business. Any failure, interruption or breach in security of these systems could result in failures or disruptions in
the Companys customer relationship management, general ledger, deposits, servicing or loan origination systems. Although the Company has policies and procedures designed to prevent or minimize the effect of a failure, interruption or breach in
security of its communications or information systems, there can be no assurance that any such failures,



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##### Index to Financial Statements

interruptions or security breaches will not occur, or if they do occur, that they will be adequately addressed by the Company. The occurrence of any such failures, interruptions or security
breaches could result in a loss of customer business and have a negative effect on the Companys results of operations, financial condition and cash flows.

The business of the Company is dependent on technology and the Companys inability to invest in technological improvements may adversely affect its results of operations, financial condition
and cash flows.

The financial services industry is undergoing rapid technological changes with frequent introductions
of new technology-driven products and services. In addition to better serving customers, the effective use of technology increases efficiency and enables financial institutions to reduce costs. The Companys future success depends in part upon
its ability to address the needs of its customers by using technology to provide products and services that will satisfy customer demands for convenience as well as create additional efficiencies in its operations. Many of the Companys
competitors have substantially greater resources to invest in technological improvements. The Company may not be able to effectively implement new technology-driven products and services or be successful in marketing these products and services to
its customers, which may negatively affect the Companys results of operations, financial condition and cash flows.

The Company
operates in a highly regulated environment and, as a result, is subject to extensive regulation and supervision; and changes in federal, state and local laws and regulations could adversely affect its financial performance.

The Company and the Bank are subject to extensive federal and state regulation and supervision. Banking regulations are primarily intended to
protect depositors funds, federal deposit insurance funds and the banking system as a whole, not the Companys shareholders. These regulations affect the Companys lending practices, capital structure, investment practices, dividend
policy and growth, among other things. Congress and federal regulatory agencies continually review banking laws, regulations and policies for possible changes. Any change in applicable regulations or federal or state legislation could have a
substantial impact on the Company, the Bank and their respective operations. The current administration has proposed major changes to the banking and financial institutions regulatory regimes in the near future in light of the recent performance of
and government intervention in the financial services sector and legislation to implement these changes is pending in the U.S. House of Representatives and the U.S. Senate. These proposed reforms and additional legislation and regulations or
regulatory policies, including changes in interpretation or implementation of statutes, regulations or policies, could significantly affect the Companys powers, authority and operations, or the powers, authority and operations of the Bank in
substantial and unpredictable ways. Further, regulators have significant discretion and power to prevent or remedy unsafe or unsound practices or violations of laws by banks and bank holding companies in the performance of their supervisory and
enforcement duties. The exercise of this regulatory discretion and power could have a negative impact on the Company. Failure to comply with laws, regulations or policies could result in sanctions by regulatory agencies, civil money penalties and/or
reputation damage, which could have a material adverse effect on the Companys business, financial condition and results of operations.

The Company is subject to losses resulting from fraudulent and negligent acts on the part of loan applicants, correspondents or other third parties.

The Company relies heavily upon information supplied by third parties, including the information contained in credit applications, property appraisals, title information, equipment pricing and valuation
and employment and income documentation, in deciding which loans the Company will originate, as well as the terms of those loans. If any of the information upon which the Company relies is misrepresented, either fraudulently or inadvertently, and
the misrepresentation is not detected prior to asset funding, the value of the asset may be significantly lower than expected, or the Company may fund a loan that it would not have funded or on terms it would not have extended. Whether a
misrepresentation is made by the applicant or another third party, the Company generally bears the risk of loss associated with the misrepresentation. A loan subject to a material



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##### Index to Financial Statements

misrepresentation is typically unsellable or subject to repurchase if it is sold prior to detection of the misrepresentation. The sources of the misrepresentations are often difficult to locate,
and it is often difficult to recover any of the monetary losses the Company may suffer.

Risks Associated with the Companys Common
Stock

The Companys corporate organizational documents and the provisions of Texas law to which it is subject may delay or
prevent a change in control of the Company that you may favor.

The Companys amended and restated articles of
incorporation and amended and restated bylaws contain various provisions which may delay, discourage or prevent an attempted acquisition or change of control of the Company. These provisions include:



| |  |  | a board of directors classified into three classes of directors with the directors of each class having staggered three-year terms;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------



| |  |  | a provision that any special meeting of the Companys shareholders may be called only by the chairman of the board and chief executive officer,
the president, a majority of the board of directors or the holders of at least 50% of the Companys shares entitled to vote at the meeting;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | a provision establishing certain advance notice procedures for nomination of candidates for election as directors and for shareholder proposals to be
considered at an annual or special meeting of shareholders; and
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | a provision that denies shareholders the right to amend the Companys bylaws.
| | - |  | -----------------------------------------------------------------------------

The Companys articles of incorporation provide for noncumulative voting for directors and authorize the board of directors to issue
shares of its preferred stock without shareholder approval and upon such terms as the board of directors may determine. The issuance of the Companys preferred stock could have the effect of making it more difficult for a third party to
acquire, or of discouraging a third party from acquiring, a controlling interest in the Company. In addition, certain provisions of Texas law, including a provision which restricts certain business combinations between a Texas corporation and
certain affiliated shareholders, may delay, discourage or prevent an attempted acquisition or change in control of the Company.

The
holders of the Companys junior subordinated debentures have rights that are senior to those of the Companys shareholders.

As of December 31, 2009, the Company had $92.3 million in junior subordinated debentures outstanding that were issued to the Companys unconsolidated subsidiary trusts. The subsidiary trusts
purchased the junior subordinated debentures from the Company using the proceeds from the sale of trust preferred securities to third party investors. Payments of the principal and interest on the trust preferred securities are conditionally
guaranteed by the Company to the extent not paid or made by each trust, provided the trust has funds available for such obligations.

The junior subordinated debentures are senior to the Companys shares of Common Stock. As a result, the Company must make interest payments on the junior subordinated debentures (and the related trust preferred securities) before any
dividends can be paid on its Common Stock; and, in the event of the Companys bankruptcy, dissolution or liquidation, the holders of the debentures must be satisfied before any distributions can be made to the holders of the Common Stock.
Additionally, the Company has the right to defer periodic distributions on the junior subordinated debentures (and the related trust preferred securities) for up to five years, during which time the Company would be prohibited from paying dividends
on its Common Stock. The Companys ability to pay the future distributions depends upon the earnings of the Bank and dividends from the Bank to the Company, which may be inadequate to service the obligations.



24



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##### Table of Contents

##### Index to Financial Statements

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 2. PROPERTIES

As of December 31, 2009, the Company conducted business
at one hundred fifty-eight (158) full-service banking centers. The Companys headquarters are located at Prosperity Bank Plaza, 4295 San Felipe, in the Galleria area in Houston, Texas. The Company also owns or leases other facilities in
which its banking centers are located as listed below by geographical market area. The expiration dates of the leases range from 2010 to 2015 and do not include renewal periods which may be available at the Companys option.

The following table sets forth specific information regarding the banking centers located in each of the Companys geographical market
areas at December 31, 2009:



|                                          |  |                          |  |                                 |  |                              |          
|----------------------------------------- |  | ------------------------ |  | ------------------------------- |  | ---------------------------- | ---------
|Geographical Area                         |  | Number ofBanking Centers |  | Number ofLeased Banking Centers |  | Deposits atDecember 31, 2009
|                                          |  |                          |  |                                 |  | (Dollars inthousands)       
|Bryan/College Station                     |  | 9                        |  |                                |  | $                            | 468,569  
|Houston area                              |  | 51                       |  | 16                              |  |                              | 3,502,400
|Central Texas area                        |  | 27                       |  | 8                               |  |                              | 822,997  
|Dallas/Fort Worth Texas area              |  | 24                       |  | 5                               |  |                              | 893,965  
|East Texas area                           |  | 20                       |  |                                |  |                              | 656,250  
|South Texas area including Corpus Christi |  | 27                       |  | 5                               |  |                              | 914,369  
|                                          |  |                          |  |                                 |  |                              |          
|Total                                     |  | 158                      |  | 34                              |  | $                            | 7,258,550
|                                          |  |                          |  |                                 |  |                              |          

ITEM 3. LEGAL PROCEEDINGS

The Company and the Bank are defendants, from time to time, in legal actions arising from transactions conducted in the ordinary course of
business. The Company and Bank believe, after consultations with legal counsel, that the ultimate liability, if any, arising from such actions will not have a material adverse effect on their financial statements.

ITEM 4.[RESERVED]



25



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##### Table of Contents

##### Index to Financial Statements

PART II.

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

Common Stock Market Prices

The Companys Common Stock is listed on the NASDAQ Global Select Market under the symbol PRSP. As of February 24, 2010,
there were 46,546,576 shares outstanding and 2,049 shareholders of record. The number of beneficial owners is unknown to the Company at this time.

The following table presents the high and low intra-day sales prices for the Common Stock as reported by NASDAQ during the two years ended December 31, 2009:



|               |  |      |       |     |   |      
|-------------- |  | ---- | ----- | --- | - | -----
|2009           |  | High |       | Low
|Fourth Quarter |  | $    | 41.18 |     | $ | 33.62
|Third Quarter  |  |      | 37.36 |     |   | 28.13
|Second Quarter |  |      | 31.23 |     |   | 26.20
|First Quarter  |  |      | 30.00 |     |   | 20.04
|               |  |     
|2008           |  | High |       | Low
|Fourth Quarter |  | $    | 36.98 |     | $ | 25.08
|Third Quarter  |  |      | 46.48 |     |   | 23.32
|Second Quarter |  |      | 32.29 |     |   | 25.37
|First Quarter  |  |      | 31.46 |     |   | 21.96

Dividends

Holders of Common Stock are entitled to receive dividends when, as and if declared by the
Companys Board of Directors out of funds legally available therefor. While the Company has declared dividends on its Common Stock since 1994, and paid quarterly dividends aggregating $0.5675 per share in 2009 and $0.5125 share in 2008, there
is no assurance that the Company will continue to pay dividends in the future. Future dividends on the Common Stock will depend upon the Companys earnings and financial condition, liquidity and capital requirements, the general economic and
regulatory climate, the Companys ability to service any equity or debt obligations senior to the Common Stock and other factors deemed relevant by the board of directors of the Company.

As a holding company, the Company is ultimately dependent upon its subsidiaries to provide funding for its operating expenses, debt service
and dividends. Various banking laws applicable to the Bank limit the payment of dividends and other distributions by the Bank to the Company, and may therefore limit the Companys ability to pay dividends on its Common Stock. If required
payments on the Companys outstanding junior subordinated debentures held by its unconsolidated subsidiary trusts are not made or suspended, the Company will be prohibited from paying dividends on its Common Stock. Regulatory authorities could
impose administratively stricter limitations on the ability of the Bank to pay dividends to the Company if such limits were deemed appropriate to preserve certain capital adequacy requirements.

The cash dividends declared per share by quarter (and paid on the first business day of the subsequent quarter) for the Companys last
two fiscal years were as follows:



|               |  |      |        |      |   |       
|-------------- |  | ---- | ------ | ---- | - | ------
|               |  | 2009 |        | 2008
|Fourth quarter |  | $    | 0.1550 |      | $ | 0.1375
|Third quarter  |  |      | 0.1375 |      |   | 0.1250
|Second quarter |  |      | 0.1375 |      |   | 0.1250
|First quarter  |  |      | 0.1375 |      |   | 0.1250



26



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##### Table of Contents

##### Index to Financial Statements

Recent Sales of Unregistered Securities

None.

Securities Authorized
for Issuance under Equity Compensation Plans

As of December 31, 2009, the Company had outstanding stock options
granted under three stock option plans, all of which were approved by the Companys shareholders. As of such date, the Company also had outstanding stock options granted under stock option plans that it assumed in connection with various
acquisition transactions. The following table provides information as of December 31, 2009 regarding the Companys equity compensation plans under which the Companys equity securities are authorized for issuance:



|                                                           |  |                                                                                             |     |  |                                                                             |       |                                                                                                                                          |        
|---------------------------------------------------------- |  | ------------------------------------------------------------------------------------------- | --- |  | --------------------------------------------------------------------------- | ----- | ---------------------------------------------------------------------------------------------------------------------------------------- | -------
|Plan category                                              |  | Number of securities tobe issued upon exerciseof outstanding options,warrants and rights(a) |     |  | Weighted-averageexercise price ofoutstanding options,warrants and
rights(b) |       | Number of securitiesremaining available forfuture issuance underequity compensationplans (excludingsecurities reflected incolumn (a))(c)
|Equity compensation plans approved by security holders     |  | 855,578                                                                                     | (1) |  | $                                                                           | 25.88 |                                                                                                                                          | 602,909
|Equity compensation plans not approved by security holders |  |                                                                                            |     |  |                                                                             |      |                                                                                                                                          |       
|                                                           |  |                                                                                             |     |  |                                                                             |       |                                                                                                                                          |        
|Total                                                      |  | 855,578                                                                                     |     |  | $                                                                           | 25.88 |                                                                                                                                          | 602,909
|                                                           |  |                                                                                             |     |  |                                                                             |       |                                                                                                                                          |        



|(1) | Includes (a) 760 shares which may be issued upon exercise of options outstanding assumed by the Company in connection with the acquisition of Paradigm
Bancorporation, Inc. at a weighted average exercise price of $11.50, (b) 8,957 shares which may be issued upon exercise of options outstanding assumed by the Company in connection with the acquisition of First Capital Bankers, Inc. at a
weighted average exercise price of $9.10 (c) 20,904 shares which may be issued upon exercise of options outstanding assumed by the Company in connection with the acquisition of SNB Bancshares, Inc. at a weighted average exercise price of $15.54
and (d) 18,500 shares which may be issued upon exercise of options outstanding assumed by the Company in connection with the acquisition Texas United Bancshares, Inc. at a weighted average exercise price of $18.70.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

None.



27



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##### Table of Contents

##### Index to Financial Statements

Performance Graph

The following Performance Graph compares the cumulative total shareholder return on the Companys Common Stock for the period beginning at the close of trading on December 31, 2004 to
December 31, 2009, with the cumulative total return of the S&P 500 Total Return Index and the Nasdaq Bank Index for the same period. Dividend reinvestment has been assumed. The Performance Graph assumes $100 invested on December 31,
2004 in the Companys Common Stock, the S&P 500 Total Return Index and the Nasdaq Bank Index. The historical stock price performance for the Companys Common Stock shown on the graph below is not necessarily indicative of future stock
performance.

Comparison of 5 Year Cumulative Total Return

Prosperity Bancshares, Inc., the S&P 500 Index

And the Nasdaq Bank Index

Prosperity Bancshares, Inc.®

LOGO



|                             |  |               |  |          |  |          |  |          |  |          |  |         
|---------------------------- |  | ------------- |  | -------- |  | -------- |  | -------- |  | -------- |  | --------
|                             |  | Period Ending
|Index                        |  | 12/31/04      |  | 12/31/05 |  | 12/31/06 |  | 12/31/07 |  | 12/31/08 |  | 12/31/09
|Prosperity Bancshares, Inc.® |  | 100.00        |  | 99.60    |  | 121.11   |  | 104.61   |  | 107.18   |  | 149.32  
|S&P 500                      |  | 100.00        |  | 104.91   |  | 121.48   |  | 128.16   |  | 80.74    |  | 102.11  
|NASDAQ Bank                  |  | 100.00        |  | 95.67    |  | 106.20   |  | 82.76    |  | 62.96    |  | 51.31   



|                                               |  |               
|---------------------------------------------- |  | --------------
|Source : SNL Financial LC, Charlottesville, VA |  | (434) 977-1600
|© 2010                                         |  | www.snl.com   



28



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##### Table of Contents

##### Index to Financial Statements

|ITEM | 6. SELECTED CONSOLIDATED FINANCIAL DATA
|---- | ---------------------------------------

The following selected consolidated financial data of the Company for, and as of the end of, each of the years in the five-year period ended December 31, 2009 is derived from and should be read in
conjunction with the Companys consolidated financial statements and the notes thereto appearing elsewhere in this Annual Report on Form 10-K.



|                                                             |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|------------------------------------------------------------ |  | --------------------------------------------- | --------- | --- | ------- | - | --------- | ---- |  | - | --------- | --- |  | ---- | --------- | - |  | - | --------- | -
|                                                             |  | As of and for the Years Ended December 31,    |          
|                                                             |  | 2009                                          |           |     | 2008(1) |   |           | 2007 |  |   | 2006      |     |  | 2005 |          
|                                                             |  | (Dollars in thousands, except per share data) |          
|Income Statement Data:                                       |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|Interest income                                              |  | $                                             | 409,614   |     |         | $ | 347,878   |      |  | $ | 340,608   |     |  | $    | 231,739   |   |  | $ | 162,123   |  
|Interest expense                                             |  |                                               | 102,513   |     |         |   | 120,149   |      |  |   | 140,173   |     |  |      | 93,594    |   |  |   | 51,226    |  
|                                                             |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|Net interest income                                          |  |                                               | 307,101   |     |         |   | 227,729   |      |  |   | 200,435   |     |  |      | 138,145   |   |  |   | 110,897   |  
|Provision for credit losses                                  |  |                                               | 28,775    |     |         |   | 9,867     |      |  |   | 760       |     |  |      | 504       |   |  |   | 480       |  
|                                                             |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|Net interest income after provision for credit losses        |  |                                               | 278,326   |     |         |   | 217,862   |      |  |   | 199,675   |     |  |      | 137,641   |   |  |   | 110,417   |  
|Noninterest income                                           |  |                                               | 60,097    |     |         |   | 52,370    |      |  |   | 52,923    |     |  |      | 33,982    |   |  |   | 30,021    |  
|Noninterest expense                                          |  |                                               | 169,700   |     |         |   | 143,796   |      |  |   | 126,843   |     |  |      | 77,669    |   |  |   | 68,957    |  
|                                                             |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|Income before taxes                                          |  |                                               | 168,723   |     |         |   | 126,436   |      |  |   | 125,755   |     |  |      | 93,954    |   |  |   | 71,481    |  
|Provision for income taxes                                   |  |                                               | 56,844    |     |         |   | 41,929    |      |  |   | 41,604    |     |  |      | 32,229    |   |  |   | 23,621    |  
|                                                             |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|Net income                                                   |  | $                                             | 111,879   |     |         | $ | 84,507    | (2)  |  | $ | 84,151    | (2) |  | $    | 61,725    |   |  | $ | 47,860    |  
|                                                             |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|                                                             |  |                                               |           |     |        
|Per Share Data:                                              |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|Basic earnings per share                                     |  | $                                             | 2.42      |     |         | $ | 1.87      | (2)  |  | $ | 1.96      | (2) |  | $    | 1.96      |   |  | $ | 1.79      |  
|Diluted earnings per share                                   |  |                                               | 2.41      |     |         |   | 1.86      | (2)  |  |   | 1.94      | (2) |  |      | 1.94      |   |  |   | 1.77      |  
|Book value per share                                         |  |                                               | 29.03     |     |         |   | 27.24     |      |  |   | 25.51     |     |  |      | 20.26     |   |  |   | 16.69     |  
|Cash dividends declared                                      |  |                                               | 0.57      |     |         |   | 0.51      |      |  |   | 0.46      |     |  |      | 0.41      |   |  |   | 0.35      |  
|Dividend payout ratio                                        |  |                                               | 23.45     | %   |         |   | 27.66     | %    |  |   | 24.15     | %   |  |      | 21.10     | % |  |   | 20.11     | %
|Weighted average shares outstanding (basic) (in thousands)   |  |                                               | 46,177    |     |         |   | 45,300    |      |  |   | 42,928    |     |  |      | 31,491    |   |  |   | 26,706    |  
|Weighted average shares outstanding (diluted) (in thousands) |  |                                               | 46,354    |     |         |   | 45,479    |      |  |   | 43,310    |     |  |      | 31,893    |   |  |   | 27,024    |  
|Shares outstanding at end of period (in thousands)           |  |                                               | 46,541    |     |         |   | 46,080    |      |  |   | 44,188    |     |  |      | 32,793    |   |  |   | 27,821    |  
|                                                             |  |                                               |           |     |        
|Balance Sheet Data (at period end):                          |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|Total assets                                                 |  | $                                             | 8,850,400 |     |         | $ | 9,072,364 |      |  | $ | 6,372,343 |     |  | $    | 4,586,769 |   |  | $ | 3,585,982 |  
|Securities                                                   |  |                                               | 4,118,290 |     |         |   | 4,160,401 |      |  |   | 1,857,606 |     |  |      | 1,590,303 |   |  |   | 1,572,602 |  
|Loans                                                        |  |                                               | 3,376,703 |     |         |   | 3,567,057 |      |  |   | 3,142,971 |     |  |      | 2,176,507 |   |  |   | 1,542,125 |  
|Allowance for credit losses                                  |  |                                               | 51,863    |     |         |   | 36,970    |      |  |   | 32,543    |     |  |      | 23,990    |   |  |   | 17,203    |  
|Total goodwill and intangibles                               |  |                                               | 912,372   |     |         |   | 912,850   |      |  |   | 799,978   |     |  |      | 447,371   |   |  |   | 284,425   |  
|Other real estate owned                                      |  |                                               | 7,829     |     |         |   | 4,450     |      |  |   | 10,207    |     |  |      | 140       |   |  |   | 239       |  
|Total deposits                                               |  |                                               | 7,258,550 |     |         |   | 7,303,297 |      |  |   | 4,966,407 |     |  |      | 3,725,678 |   |  |   | 2,920,318 |  
|Borrowings and notes payable                                 |  |                                               | 98,736    |     |         |   | 325,412   |      |  |   | 116,047   |     |  |      | 73,633    |   |  |   | 102,389   |  
|Junior subordinated debentures                               |  |                                               | 92,265    | (3) |         |   | 92,265    |      |  |   | 112,885   |     |  |      | 100,519   |   |  |   | 75,775    |  
|Total shareholders equity                                   |  |                                               | 1,351,245 |     |         |   | 1,255,106 |      |  |   | 1,127,431 |     |  |      | 664,411   |   |  |   | 464,717   |  
|                                                             |  |                                               |           |     |        
|Average Balance Sheet Data:                                  |  |                                               |           |     |         |   |           |      |  |   |           |     |  |      |           |   |  |   |           |  
|Total assets                                                 |  | $                                             | 8,851,694 |     |         | $ | 7,025,418 |      |  | $ | 6,094,064 |     |  | $    | 4,283,795 |   |  | $ | 3,361,617 |  
|Securities                                                   |  |                                               | 4,052,989 |     |         |   | 2,409,758 |      |  |   | 1,849,613 |     |  |      | 1,612,221 |   |  |   | 1,471,067 |  
|Loans                                                        |  |                                               | 3,455,761 |     |         |   | 3,250,447 |      |  |   | 3,092,797 |     |  |      | 2,037,379 |   |  |   | 1,435,376 |  
|Allowance for credit losses                                  |  |                                               | 42,279    |     |         |   | 33,004    |      |  |   | 34,705    |     |  |      | 22,476    |   |  |   | 16,334    |  
|Total goodwill and intangibles                               |  |                                               | 914,384   |     |         |   | 842,580   |      |  |   | 759,733   |     |  |      | 406,920   |   |  |   | 253,703   |  
|Total deposits                                               |  |                                               | 7,212,015 |     |         |   | 5,471,441 |      |  |   | 4,727,519 |     |  |      | 3,449,100 |   |  |   | 2,791,813 |  
|Junior subordinated debentures                               |  |                                               | 92,265    |     |         |   | 99,998    |      |  |   | 124,613   |     |  |      | 92,271    |   |  |   | 69,869    |  
|Total shareholders equity                                   |  |                                               | 1,304,749 |     |         |   | 1,192,293 |      |  |   | 1,039,955 |     |  |      | 602,712   |   |  |   | 413,864   |  

(Table continued on
next page)



29



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##### Table of Contents

##### Index to Financial Statements

|                                                          |  |                                               |   |  |         |      |  |       |      |  |         |   |  |         |  
|--------------------------------------------------------- |  | --------------------------------------------- | - |  | ------- | ---- |  | ----- | ---- |  | ------- | - |  | ------- | -
|                                                          |  | As of and for the Years Ended December 31,    |  
|                                                          |  | 2009                                          |   |  | 2008(1) |      |  | 2007  |      |  | 2006    |   |  | 2005    |  
|                                                          |  | (Dollars in thousands, except per share data) |  
|Performance Ratios:                                       |  |                                               |   |  |         |      |  |       |      |  |         |   |  |         |  
|Return on average assets                                  |  | 1.26                                          | % |  | 1.20    | %(4) |  | 1.38  | %(5) |  | 1.44    | % |  | 1.42    | %
|Return on average equity                                  |  | 8.57                                          |   |  | 7.09    | (4)  |  | 8.09  | (5)  |  | 10.24   |   |  | 11.56   |  
|Net interest margin (tax equivalent)                      |  | 4.08                                          |   |  | 3.96    |      |  | 4.06  |      |  | 3.80    |   |  | 3.81    |  
|Efficiency ratio(6)                                       |  | 46.27                                         |   |  | 46.51   |      |  | 46.19 |      |  | 45.27   |   |  | 48.91   |  
|                                                          |  |                                               |   |  |        
|Asset Quality Ratios(7):                                  |  |                                               |   |  |         |      |  |       |      |  |         |   |  |         |  
|Nonperforming assets to total loans and other real estate |  | 0.48                                          | % |  | 0.40    | %    |  | 0.49  | %    |  | 0.05    | % |  | 0.09    | %
|Net charge-offs to average loans                          |  | 0.40                                          |   |  | 0.23    |      |  | 0.18  |      |  | 0.04    |   |  | 0.03    |  
|Allowance for credit losses to total loans                |  | 1.54                                          |   |  | 1.04    |      |  | 1.04  |      |  | 1.10    |   |  | 1.12    |  
|Allowance for credit losses to nonperforming loans(8)     |  | 616.6                                         |   |  | 379.7   |      |  | 634.7 |      |  | 2,530.6 |   |  | 1,505.1 |  
|                                                          |  |                                               |   |  |        
|Capital Ratios(7):                                        |  |                                               |   |  |         |      |  |       |      |  |         |   |  |         |  
|Leverage ratio                                            |  | 6.47                                          | % |  | 5.68    | %    |  | 8.09  | %    |  | 7.76    | % |  | 7.83    | %
|Average shareholders equity to average total assets      |  | 14.74                                         |   |  | 16.97   |      |  | 17.07 |      |  | 14.07   |   |  | 12.31   |  
|Tier 1 risk-based capital ratio                           |  | 12.61                                         |   |  | 10.27   |      |  | 13.13 |      |  | 13.52   |   |  | 15.34   |  
|Total risk-based capital ratio                            |  | 13.86                                         |   |  | 11.17   |      |  | 14.11 |      |  | 14.55   |   |  | 16.37   |  



|(1) | The Company completed the acquisition of six branches of Banco Popular on January 10, 2008, the acquisition of 1stChoice Bancorp, Inc. on June 1, 2008 and the assumption of $3.6
billion in deposits and $724.0 million in assets from the FDIC related to Franklin Bank on November 7, 2008.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Net income for the year ended December 31, 2008 includes a $14.0 million pre-tax, or $9.1 million after-tax, impairment charge on write-down of securities which
resulted in a decrease of basic and diluted earnings per share of $0.20 for the year ended December 31, 2008. Net income for the year ended December 31, 2007 includes a $10.0 million pre-tax, or $6.5 million after-tax, impairment charge on
write-down of securities, which resulted in a decrease of basic and diluted earnings per share of $0.15 for the year ended December 31, 2007.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Consists of $15.5 million of junior subordinated debentures of Prosperity Statutory Trust II due July 31, 2031, $12.9 million of junior subordinated debentures of
Prosperity Statutory Trust III due September 17, 2033, $12.9 million of junior subordinated debentures of Prosperity Statutory Trust IV due December 30, 2033, $10.3 million of junior subordinated debentures of SNB Capital Trust IV due
September 25, 2033 (assumed by the Company on April 1, 2006), $7.2 million of junior subordinated debentures of TXUI Statutory Trust I due September 7, 2030 (assumed by the Company on January 31, 2007), $5.2 million of junior
subordinated debentures of TXUI Statutory Trust II due December 19, 2033 (assumed by the Company on January 3l, 2007), $16.0 million of junior subordinated debentures of TXUI Statutory Trust III due December 15, 2035 (assumed by the
Company on January 3l, 2007) and $12.4 million of junior subordinated debentures of TXUI Statutory Trust IV due June 30, 2036 (assumed by the Company on January 3l, 2007).
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | Includes a $14.0 million pre-tax, or $9.1 million after-tax, impairment charge on write-down of securities, which resulted in a decrease of return on average assets of
13 basis points and a decrease of return on average equity of 76 basis points for the year ended December 31, 2008.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(5) | Includes a $10.0 million pre-tax, or $6.5 million after-tax, impairment charge on write-down of securities, which resulted in a decrease of return on average assets of
11 basis points and a decrease of return on average equity of 63 basis points for the year ended December 31, 2007.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(6) | Calculated by dividing total noninterest expense, excluding credit loss provisions and impairment write-down on securities, by net interest income plus noninterest
income, excluding net gains and losses on the sale of securities and assets. Additionally, taxes are not part of this calculation.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(7) | At period end, except for net charge-offs to average loans and average shareholders equity to average total assets, which is for periods ended at such dates.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------

|(8) | Nonperforming loans consist of nonaccrual loans, loans contractually past due 90 days or more, restructured loans and any other loan management deems to be
nonperforming.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Index to Financial Statements

ITEM 7. MANAGEMENTS DISCUSSION AND
ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Special Cautionary Notice Regarding Forward-Looking Statements

Statements and financial discussion and analysis contained in this Annual Report on Form 10-K that are not statements of
historical fact constitute forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on assumptions and involve a number of risks and
uncertainties, many of which are beyond the Companys control. Many possible events or factors could affect the future financial results and performance of the Company and could cause such results or performance to differ materially from those
expressed in the forward-looking statements. These possible events or factors include, but are not limited to:



| |  |  | changes in interest rates and market prices, which could reduce the Companys net interest margins, asset valuations and expense expectations;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | changes in the levels of loan prepayments and the resulting effects on the value of the Companys loan portfolio;
| | - |  | -----------------------------------------------------------------------------------------------------------------



| |  |  | changes in the strength of the United States economy in general and the local economies in the Companys market areas adversely affect the
Companys customers and their ability to transact profitable business with the Company, including the ability of the Companys borrowers to repay their loans according to their terms or a change in the value of the related collateral;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | increased competition for deposits and loans adversely affecting rates and terms;
| | - |  | ---------------------------------------------------------------------------------



| |  |  | the timing, impact and other uncertainties of future acquisitions, including the Companys ability to identify suitable future acquisition
candidates, the success or failure in the integration of their operations, and the ability to enter new markets successfully and capitalize on growth opportunities;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the possible impairment of goodwill associated with an acquisition and possible adverse short-term effects on the results of operations;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | increased credit risk in the Companys assets and increased operating risk caused by a material change in commercial, consumer and/or real estate
loans as a percentage of the total loan portfolio;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the concentration of the Companys loan portfolio in loans collateralized by real estate;
| | - |  | -----------------------------------------------------------------------------------------



| |  |  | the failure of assumptions underlying the establishment of and provisions made to the allowance for credit losses;
| | - |  | ------------------------------------------------------------------------------------------------------------------



| |  |  | changes in the availability of funds resulting in increased costs or reduced liquidity;
| | - |  | ---------------------------------------------------------------------------------------



| |  |  | a deterioration or downgrade in the credit quality and credit agency ratings of the securities in the Companys securities portfolio;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------



| |  |  | increased asset levels and changes in the composition of assets and the resulting impact on the Companys capital levels and regulatory capital
ratios;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the Companys ability to acquire, operate and maintain cost effective and efficient systems without incurring unexpectedly difficult or expensive
but necessary technological changes;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the loss of senior management or operating personnel and the potential inability to hire qualified personnel at reasonable compensation levels;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | government intervention in the U.S. financial system;
| | - |  | -----------------------------------------------------



| |  |  | changes in statutes and government regulations or their interpretations applicable to financial holding companies and the Companys present and
future banking and other subsidiaries, including changes in tax requirements and tax rates;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | increases in FDIC deposit insurance assessments;
| | - |  | ------------------------------------------------



| |  |  | acts of terrorism, an outbreak of hostilities or other international or domestic calamities, weather or other acts of God and other matters beyond the
Companys control; and
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



31



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##### Table of Contents

##### Index to Financial Statements

| |  |  | other risks and uncertainties listed from time to time in the Companys reports and documents filed with the Securities and Exchange Commission.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------

A forward-looking statement may include a statement of the assumptions or bases underlying the
forward-looking statement. The Company believes it has chosen these assumptions or bases in good faith and that they are reasonable. However, the Company cautions you that assumptions or bases almost always vary from actual results, and the
differences between assumptions or bases and actual results can be material. Therefore, the Company cautions you not to place undue reliance on its forward-looking statements. The forward-looking statements speak only as of the date the statements
are made. The Company undertakes no obligation to publicly update or otherwise revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Managements Discussion and Analysis of Financial Condition and Results of Operations analyzes the major elements of the Companys
balance sheets and statements of income. This section should be read in conjunction with the Companys consolidated financial statements and accompanying notes and other detailed information appearing elsewhere in this Annual Report on Form
10-K.

For the Years Ended December 31, 2009, 2008 and 2007

Overview

The Company generates the majority of its revenues from interest income on loans, service charges on customer accounts and income from investment in securities. The revenues are partially offset by interest expense paid on deposits and
other borrowings and noninterest expenses such as administrative and occupancy expenses. Net interest income is the difference between interest income on earning assets such as loans and securities and interest expense on liabilities such as
deposits and borrowings which are used to fund those assets. Net interest income is the Companys largest source of revenue. The level of interest rates and the volume and mix of earning assets and interest-bearing liabilities impact net
interest income and margin. The Company has recognized increased net interest income due primarily to an increase in the volume of interest-earning assets.

Three principal components of the Companys growth strategy are internal growth, stringent cost control practices
and acquisitions, including strategic merger transactions and FDIC assisted transactions. The Company focuses on continual internal growth. Each banking center is operated as a separate profit center, maintaining separate data with respect to its
net interest income, efficiency ratio, deposit growth, loan growth and overall profitability. Banking center presidents and managers are accountable for performance in these areas and compensated accordingly. The Company also focuses on maintaining
stringent cost control practices and policies. The Company has invested significantly in the infrastructure required to centralize many of its critical operations, such as data processing and loan processing. Management believes that this
centralized infrastructure can accommodate substantial additional growth while enabling the Company to minimize operational costs through certain economies of scale. The Company also intends to continue to seek expansion opportunities. On
January 31, 2007, forty-one (41) banking centers were acquired in the acquisition of Texas United Bancshares, Inc. (the TXUI acquisition). The acquisition of The Bank of Navasota, N.A. (the Navasota acquisition) was
completed on September 1, 2007 and added one (1) banking center. During 2008, the Company acquired six (6) branches of Banco Popular North America in January, completed the acquisition of 1stChoice Bancorp, Inc on June 1 which added one (1) banking
center and assumed $3.6 billion in deposits and acquired certain assets from the FDIC acting in its capacity as receiver for Franklin Bank in November which initially added forty-five (45) banking centers, twelve (12) of which were closed
and consolidated with nearby banking centers (the Franklin Bank acquisition or Franklin transaction).

Net income was $111.9 million, $84.5 million and $84.2 million for the years ended December 31, 2009, 2008 and 2007, respectively, and diluted earnings per share were $2.41, $1.86 and $1.94,
respectively, for these same periods. The change in net income during both 2009 and 2008 resulted principally from an increase in net interest income and acquisitions, including the acquisition of six (6) branches of Banco Popular and the
1st



32



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##### Table of Contents

##### Index to Financial Statements

Choice and Franklin Bank acquisitions, partially offset by an increase in write-down on perpetual preferred securities issued by Federal Home Loan Mortgage Corporation (FHLMC or
Freddie Mac) and Federal National Mortgage Association (FNMA or Fannie Mae) in 2008. Net income growth during 2007 resulted principally from an increase in loan volume and acquisitions. The Company posted returns on average assets of
1.26%, 1.20% and 1.38% and returns on average equity of 8.57%, 7.09% and 8.09% for the years ended December 31, 2009, 2008 and 2007, respectively. The Companys efficiency ratio was 46.27% in 2009, 46.51% in 2008 and 46.19% in 2007. The
efficiency ratio is calculated by dividing total noninterest expense (excluding credit loss provisions and impairment write-down on securities) by net interest income plus noninterest income (excluding net gains and losses on the sale of securities
and assets). Additionally, taxes are not part of this calculation.

The Company recognized an other-than-temporary impairment
charge of $14.0 million pre-tax ($9.1 million after tax) and an impairment charge of $10.0 million pre-tax ($6.5 million after tax) for the years ended December 31, 2008 and 2007, respectively, on Freddie Mac and on Fannie Mae government
sponsored, investment grade perpetual callable preferred securities. The other-than-temporary-impairment charges were recorded on perpetual preferred stock issues classified as available for sale investment securities with a total book value (prior
to recognition of the impairment charges) of $24.0 million. The Company reclassified the unrealized mark-to-market loss on these investment grade securities to an other-than-temporary impairment charge because of the significant decline in the
market value of these securities and because management believes it is unlikely that these securities will recover their original book value within a reasonable amount of time. Both Fannie Mae and Freddie Mac securities were investment grade at the
time of purchase. Market value decreases on available for sale securities which are not other-than-temporary are recorded as an unrealized mark-to-market loss and reflected as a reduction to shareholders equity through other comprehensive
income. Accordingly, the reclassification of the unrealized after tax loss to an other-than-temporary impairment non-cash charge did not affect shareholders equity or tangible shareholders equity.

Total assets at December 31, 2009 and 2008 were $8.850 billion and $9.072 billion, respectively. Total deposits at December 31,
2009 and 2008 were $7.259 billion and $7.303 billion, respectively. Total loans were $3.377 billion at December 31, 2009, a decrease of $190.4 million or 5.3% compared with $3.567 billion at December 31, 2008. At December 31, 2009,
the Company had $8.4 million in nonperforming loans and its allowance for credit losses was $51.9 million compared with $9.7 million in nonperforming loans and an allowance for credit losses of $37.0 million at December 31, 2008.
Shareholders equity was $1.351 billion and $1.255 billion at December 31, 2009 and 2008, respectively.

In response
to global credit and liquidity issues involving a number of financial institutions, the United States government, particularly the U.S. Treasury and the FDIC, have taken a variety of extraordinary measures designed to restore confidence in the
financial markets and to strengthen financial institutions, including capital injections, guarantees of bank liabilities and the acquisition of illiquid assets from banks. The Company cannot predict at this time the effect that the recent
legislative initiatives may have on its business, financial condition or results of operations. For additional details about the recent legislative initiatives, please refer to the section captioned Supervision and RegulationLegislative
Initiatives in Part I, Item 1 of this Annual Report on Form 10-K.

Subsequent Events

On January 19, 2010, the Company announced the signing by Prosperity Bank of a definitive agreement to acquire the three
(3) Texas retail bank branches of U.S. Bank. Prosperity Bank will pay a premium for approximately $420 million in deposits, as well as purchase certain loans and other assets attributable to the branches. The three locations being acquired by
the Company are the Texas locations U.S. Bank acquired from the FDIC on October 30, 2009 when U.S. Bank acquired the nine (9) subsidiary banks of FBOP Corporation. The Texas banks were Madisonville State Bank in Madisonville, Texas;
Citizens National Bank in Teague, Texas; and North Houston Bank in Houston, Texas. The agreement has been approved by the Board of Directors of both banks and is expected to close during the first quarter of 2010, although delays could occur.
The transaction is subject to certain conditions, including customary regulatory approvals.



33



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##### Table of Contents

##### Index to Financial Statements

On February 8, 2010, the Company announced the signing by Prosperity Bank of a
definitive agreement to acquire the nineteen (19) Texas retail bank branches of First Bank, a Missouri state-chartered bank. Prosperity Bank will pay a premium of 5.5% for approximately $500 million in deposits, as well as purchase
approximately $100 million in loans and other assets attributable to the branches. First Banks Texas locations are all in the Houston and Dallas metropolitan areas. After the consolidation of locations near existing Company banking centers and
the acquisition of the Houston branch of U.S. Bank, the Company will operate thirty-one (31) Dallas/Fort Worth area banking centers and fifty-eight (58) Houston area banking centers. The agreement has been approved by the Board of
Directors of both banks and is expected to close during the second quarter of 2010, although delays could occur. The transaction is subject to certain conditions, including customary regulatory approvals.

Critical Accounting Policies

The Companys significant accounting policies are integral to understanding the results reported. The Companys accounting policies are described in detail in Note 1 to the consolidated
financial statements, appearing elsewhere is this Annual Report on Form 10-K. The Company believes that of its significant accounting policies, the following may involve a higher degree of judgment and complexity:

Allowance for Credit LossesThe allowance for credit losses is established through charges to earnings in the form of a
provision for credit losses. Management has established an allowance for credit losses which it believes is adequate for estimated losses in the Companys loan portfolio. Based on an evaluation of the loan portfolio, management presents a
monthly review of the allowance for credit losses to the Banks Board of Directors, indicating any change in the allowance since the last review and any recommendations as to adjustments in the allowance. In making its evaluation, management
considers factors such as historical loan loss experience, industry diversification of the Companys commercial loan portfolio, the amount of nonperforming assets and related collateral, the volume, growth and composition of the Companys
loan portfolio, current economic conditions that may affect the borrowers ability to pay and the value of collateral, the evaluation of the Companys loan portfolio through its internal loan review process and other relevant factors.
Portions of the allowance may be allocated for specific credits; however, the entire allowance is available for any credit that, in managements judgment, should be charged off. Charge-offs occur when loans are deemed to be uncollectible. The
allowance for credit losses includes allowance allocations calculated in accordance with FASB ASC Topic 310, Receivables, and allowance allocations determined in accordance with FASB ASC Topic 450,
Contingencies.

Goodwill and Intangible AssetsGoodwill and intangible assets that have
indefinite useful lives are subject to an impairment test at least annually, or more often, if events or circumstances indicate that it is more likely than not that the fair value of Prosperity Bank, the Companys only reporting unit with
assigned goodwill, is below the carrying value of its equity. Goodwill is tested for impairment using a two-step process that begins with an estimation of the fair value of the Companys reporting unit compared with its carrying value. If the
carrying amount exceeds the fair value of the 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 that are subject to amortization are amortized on an accelerated basis over the years expected to be benefited, which the Company believes is between eight and ten years. These amortizable intangible assets are reviewed for impairment if
circumstances indicate their value may not be recoverable based on a comparison of fair value to carrying value. Based on the Companys annual goodwill impairment test as of September 30, 2009, management does not believe any of its
goodwill is impaired as of December 31, 2009 because the fair value of the Companys equity exceeded its carrying value. While the Company believes no impairment existed at December 31, 2009 under accounting standards applicable at
that date, different conditions or assumptions, or changes in cash flows or profitability, if significantly negative or unfavorable, could have a material adverse effect on the outcome of the Companys impairment evaluation and financial
condition or future results of operations.



34



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##### Index to Financial Statements

Stock-Based CompensationThe Company accounts for stock-based employee
compensation plans using the fair value-based method of accounting in accordance with FASB ASC Topic 718, Stock Compensation.ASC 718 was effective for companies in 2006; however, the Company had been recognizing compensation expense since
January 1, 2003. The Companys results of operations reflect compensation expense for all employee stock-based compensation, including the unvested portion of stock options granted prior to 2003. ASC 718 requires that management make
assumptions including stock price volatility and employee turnover that are utilized to measure compensation expense. The fair value of stock options granted is estimated at the date of grant using the Black-Scholes option-pricing model. This model
requires the input of subjective assumptions.

Other Than Temporarily Impaired SecuritiesThe Companys
available for sale securities portfolio is reported at fair value. When the fair value of a security is below its amortized cost, and depending on the length of time the condition exists and the extent the fair market value is below amortized cost,
additional analysis is performed to determine whether an impairment exists. Available for sale and held to maturity securities are analyzed quarterly for possible other-than-temporary impairment. The analysis considers (i) the length of time
and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, (iii) whether the market decline was affected by macroeconomic conditions, and (iv) whether the entity
has the intent to sell the debt security or more likely than not will be required to sell the debt security before its anticipated recovery. Often, the information available to conduct these assessments is limited and rapidly changing, making
estimates of fair value subject to judgment. If actual information or conditions are different than estimated, the extent of the impairment of the security may be different than previously estimated, which could have a material effect on the
Companys results of operations and financial condition.

Results of Operations

Net Interest Income

The
Companys operating results depend primarily on its net interest income, which is the difference between interest income on interest-earning assets, including securities and loans, and interest expense incurred on interest-bearing liabilities,
including deposits and other borrowed funds. Interest rate fluctuations, as well as changes in the amount and type of earning assets and liabilities, combine to affect net interest income. The Companys net interest income is affected by
changes in the amount and mix of interest-earning assets and interest-bearing liabilities, referred to as a volume change. It is also affected by changes in yields earned on interest-earning assets and rates paid on interest-bearing
deposits and other borrowed funds, referred to as a rate change.

2009 versus 2008. Net interest income
before the provision for credit losses for the year ended December 31, 2009 was $307.1 million compared with $227.7 million for the year ended December 31, 2008, an increase of $79.4 million or 34.9%. The improvement in net interest income
for 2009 was principally due to a $1.76 billion or 30.3% increase in average interest-earning assets to $7.586 billion at December 31, 2009 compared with $5.824 billion at December 31, 2008. The increase in average interest-earning assets
was primarily due to the Franklin Bank transaction. The improvement in net interest income for 2009 was also partially due to a decrease in the yield on interest-earning assets that was less than the decrease in rates paid on interest-bearing
liabilities. The average rate paid on interest-bearing liabilities decreased 95 basis points from 2.66% for the year ended December 31, 2008 to 1.71% for the year ended December 31, 2009 and the average yield on interest-earning assets
decreased 57 basis points from 5.97% at December 31, 2008 to 5.40% at December 31, 2009. At December 31, 2009, period end demand deposits represented an important component of funding and were 20.6% of total period end deposits
compared with 20.9% at December 31, 2008.

Net interest margin on a tax equivalent basis, defined as net interest income
divided by average interest-earning assets, for 2009 was 4.08%, an increase of 12 basis points compared with 3.96% for 2008.



35



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##### Table of Contents

##### Index to Financial Statements

2008 versus 2007. Net interest income before the provision for credit losses for the
year ended December 31, 2008 was $227.7 million compared with $200.4 million for the year ended December 31, 2007, an increase of $27.3 million or 13.6%. The improvement in net interest income for 2008 was principally due to a $810.1
million or 16.2% increase in average interest-earning assets to $5.824 billion at December 31, 2008 compared with $5.014 billion at December 31, 2007. The increase in average interest-earning assets was primarily due to the Franklin
transaction. The improvement in net interest income for 2008 was also partially due to a decrease in the yield on interest-earning assets that was less than the decrease in rates paid on interest-bearing liabilities. The average rate paid on
interest-bearing liabilities decreased 97 basis points from 3.63% for the year ended December 31, 2007 to 2.66% for the year ended December 31, 2008 and the average yield on interest-earning assets decreased 82 basis points from 6.79% at
December 31, 2007 to 5.97% at December 31, 2008. At December 31, 2008, period end demand deposits represented an important component of funding and were 20.9% of total period end deposits compared with 23.5% at December 31, 2007.

Net interest margin on a tax equivalent basis, defined as net interest income divided by average interest-earning assets, for
2008 was 3.96%, down 10 basis points from 4.06% for 2007.



36



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##### Table of Contents

##### Index to Financial Statements

The following table presents, for the periods indicated, the total dollar amount of average
balances, interest income from average interest-earning assets and the resultant yields, as well as the interest expense on average interest-bearing liabilities, expressed both in dollars and rates. Except as indicated in the footnotes, no
tax-equivalent adjustments were made and all average balances are daily average balances. Any nonaccruing loans have been included in the table as loans carrying a zero yield.



|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|-------------------------------------------------------- |  | ------------------------- | --------- | - | ------------------- | - | ----------------- | ---- | ---- | ------------------------- |  | - | ------------------- | - | ----------------- | - | ------- | ------------------------- | ---- | - | ------------------- | - | ----------------- | - |  | - | ------- |  | ---- | -
|                                                         |  | Years Ended December 31,  |          
|                                                         |  | 2009                      |           |   | 2008                |   |                   | 2007 |     
|                                                         |  | AverageOutstandingBalance |           |   | InterestEarned/Paid |   | AverageYield/Rate |      |      | AverageOutstandingBalance |  |   | InterestEarned/Paid |   | AverageYield/Rate |   |         | AverageOutstandingBalance |      |   | InterestEarned/Paid |   | AverageYield/Rate |  
|                                                         |  | (Dollars in thousands)    |          
|Assets                                                   |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Interest-earning assets:                                 |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Loans                                                    |  | $                         | 3,455,761 |   |                     | $ | 219,320           |      | 6.35 | %                         |  | $ | 3,250,447           |   |                   | $ | 227,466 |                           | 7.00 | % |                     | $ | 3,092,797         |   |  | $ | 247,600 |  | 8.01 | %
|Securities(1)                                            |  |                           | 4,052,989 |   |                     |   | 190,106           |      | 4.69 |                           |  |   | 2,409,758           |   |                   |   | 118,185 |                           | 4.90 |   |                     |   | 1,849,613         |   |  |   | 89,467  |  | 4.84 |  
|Federal funds sold and other temporary investments       |  |                           | 77,328    |   |                     |   | 188               |      | 0.24 |                           |  |   | 163,746             |   |                   |   | 2,227   |                           | 1.36 |   |                     |   | 71,462            |   |  |   | 3,541   |  | 4.96 |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Total interest-earning assets                            |  |                           | 7,586,078 |   |                     |   | 409,614           |      | 5.40 | %                         |  |   | 5,823,951           |   |                   |   | 347,878 |                           | 5.97 | % |                     |   | 5,013,872         |   |  |   | 340,608 |  | 6.79 | %
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Less allowance for credit losses                         |  |                           | (42,279   | ) |                     |   |                   |      |      |                           |  |   | (33,004             | ) |                   |   |         |                           |      |   |                     |   | (34,705           | ) |  |   |         |  |      |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Total interest-earning assets, net of allowance          |  |                           | 7,543,799 |   |                     |   |                   |      |      |                           |  |   | 5,790,947           |   |                   |   |         |                           |      |   |                     |   | 4,979,167         |   |  |   |         |  |      |  
|Noninterest-earning assets                               |  |                           | 1,307,895 |   |                     |   |                   |      |      |                           |  |   | 1,234,471           |   |                   |   |         |                           |      |   |                     |   | 1,114,897         |   |  |   |         |  |      |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Total assets                                             |  | $                         | 8,851,694 |   |                     |   |                   |      |      |                           |  | $ | 7,025,418           |   |                   |   |         |                           |      |   |                     | $ | 6,094,064         |   |  |   |         |  |      |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Liabilities and shareholders equity                     |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Interest-bearing liabilities:                            |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Interest-bearing demand deposits                         |  | $                         | 1,082,332 |   |                     | $ | 8,587             |      | 0.79 | %                         |  | $ | 791,739             |   |                   | $ | 7,967   |                           | 1.01 | % |                     | $ | 829,757           |   |  | $ | 16,313  |  | 1.97 | %
|Savings and money market accounts                        |  |                           | 1,910,721 |   |                     |   | 19,405            |      | 1.02 |                           |  |   | 1,411,142           |   |                   |   | 27,770  |                           | 1.97 |   |                     |   | 1,205,584         |   |  |   | 35,089  |  | 2.91 |  
|Certificates of deposit                                  |  |                           | 2,730,263 |   |                     |   | 67,842            |      | 2.48 |                           |  |   | 1,997,152           |   |                   |   | 71,955  |                           | 3.60 |   |                     |   | 1,549,064         |   |  |   | 71,280  |  | 4.60 |  
|Junior subordinated debentures                           |  |                           | 92,265    |   |                     |   | 3,760             |      | 4.08 |                           |  |   | 99,998              |   |                   |   | 6,439   |                           | 6.44 |   |                     |   | 124,613           |   |  |   | 10,058  |  | 8.07 |  
|Securities sold under repurchase agreements              |  |                           | 93,625    |   |                     |   | 1,166             |      | 1.25 |                           |  |   | 84,289              |   |                   |   | 2,388   |                           | 2.83 |   |                     |   | 71,165            |   |  |   | 3,026   |  | 4.25 |  
|Other borrowings                                         |  |                           | 75,747    |   |                     |   | 1,753             |      | 2.31 |                           |  |   | 124,619             |   |                   |   | 3,630   |                           | 2.91 |   |                     |   | 83,478            |   |  |   | 4,407   |  | 5.28 |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Total interest-bearing liabilities                       |  |                           | 5,984,953 |   |                     |   | 102,513           |      | 1.71 | %                         |  |   | 4,508,939           |   |                   |   | 120,149 |                           | 2.66 | % |                     |   | 3,863,661         |   |  |   | 140,173 |  | 3.63 | %
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Noninterest-bearing liabilities:                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Noninterest-bearing demand deposits                      |  |                           | 1,488,699 |   |                     |   |                   |      |      |                           |  |   | 1,271,408           |   |                   |   |         |                           |      |   |                     |   | 1,143,114         |   |  |   |         |  |      |  
|Other liabilities                                        |  |                           | 73,293    |   |                     |   |                   |      |      |                           |  |   | 52,778              |   |                   |   |         |                           |      |   |                     |   | 47,334            |   |  |   |         |  |      |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Total liabilities                                        |  |                           | 7,546,945 |   |                     |   |                   |      |      |                           |  |   | 5,833,125           |   |                   |   |         |                           |      |   |                     |   | 5,054,109         |   |  |   |         |  |      |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Shareholders equity                                     |  |                           | 1,304,749 |   |                     |   |                   |      |      |                           |  |   | 1,192,293           |   |                   |   |         |                           |      |   |                     |   | 1,039,955         |   |  |   |         |  |      |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Total liabilities and shareholders equity               |  | $                         | 8,851,694 |   |                     |   |                   |      |      |                           |  | $ | 7,025,418           |   |                   |   |         |                           |      |   |                     | $ | 6,094,064         |   |  |   |         |  |      |  
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Net interest rate spread                                 |  |                           |           |   |                     |   |                   |      | 3.69 | %                         |  |   |                     |   |                   |   |         |                           | 3.31 | % |                     |   |                   |   |  |   |         |  | 3.16 | %
|Net interest income and margin(2)                        |  |                           |           |   |                     | $ | 307,101           |      | 4.05 | %                         |  |   |                     |   |                   | $ | 227,729 |                           | 3.91 | % |                     |   |                   |   |  | $ | 200,435 |  | 4.00 | %
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  
|Net interest income and margin (tax-equivalent basis)(3) |  |                           |           |   |                     | $ | 309,866           |      | 4.08 | %                         |  |   |                     |   |                   | $ | 230,592 |                           | 3.96 | % |                     |   |                   |   |  | $ | 203,554 |  | 4.06 | %
|                                                         |  |                           |           |   |                     |   |                   |      |      |                           |  |   |                     |   |                   |   |         |                           |      |   |                     |   |                   |   |  |   |         |  |      |  



|(1) | Yield is based on amortized cost and does not include any component of unrealized gains or losses.
|--- | --------------------------------------------------------------------------------------------------

|(2) | The net interest margin is equal to net interest income divided by average interest-earning assets.
|--- | ---------------------------------------------------------------------------------------------------

|(3) | In order to make pretax income and resultant yields on tax-exempt investments and loans comparable to those on taxable investments and loans, a tax-equivalent
adjustment has been computed using a federal income tax rate of 35% for the years ended December 31, 2009, 2008 and 2007 and other applicable effective tax rates.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



37



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##### Table of Contents

##### Index to Financial Statements

The following table presents information regarding the dollar amount of changes in interest
income and interest expense for the periods indicated for each major component of interest-earning assets and interest-bearing liabilities and distinguishes between the changes attributable to changes in volume and changes in interest rates. For
purposes of this table, changes attributable to both rate and volume which cannot be segregated have been allocated to rate.



|                                                   |  |                                    |        |   |               |   |         |                                    |        |   |         |      |  |   |        |   |  |   |         |   |  |   |         |  
|-------------------------------------------------- |  | ---------------------------------- | ------ | - | ------------- | - | ------- | ---------------------------------- | ------ | - | ------- | ---- |  | - | ------ | - |  | - | ------- | - |  | - | ------- | -
|                                                   |  | Years Ended December 31,           |       
|                                                   |  | 2009 vs. 2008                      |        |   | 2008 vs. 2007 |  
|                                                   |  | Increase(Decrease)Due to Change in |        |   | Total         |   |         | Increase(Decrease)Due to Change in |        |   | Total   |     
|                                                   |  | Volume                             |        |   | Rate          |   |         |                                    | Volume |   |         | Rate |  |  
|                                                   |  | (Dollars in thousands)             |       
|Interest-earning assets:                           |  |                                    |        |   |               |   |         |                                    |        |   |         |      |  |   |        |   |  |   |         |   |  |   |         |  
|Loans                                              |  | $                                  | 14,368 |   |               | $ | (22,514 | )                                  |        | $ | (8,146  | )    |  | $ | 12,621 |   |  | $ | (32,755 | ) |  | $ | (20,134 | )
|Securities                                         |  |                                    | 80,591 |   |               |   | (8,670  | )                                  |        |   | 71,921  |      |  |   | 27,095 |   |  |   | 1,623   |   |  |   | 28,718  |  
|Federal funds sold and other temporary investments |  |                                    | (1,175 | ) |               |   | (864    | )                                  |        |   | (2,039  | )    |  |   | 4,573  |   |  |   | (5,887  | ) |  |   | (1,314  | )
|                                                   |  |                                    |        |   |               |   |         |                                    |        |   |         |      |  |   |        |   |  |   |         |   |  |   |         |  
|Total increase (decrease) in interest income       |  |                                    | 93,784 |   |               |   | (32,048 | )                                  |        |   | 61,736  |      |  |   | 44,289 |   |  |   | (37,019 | ) |  |   | 7,270   |  
|                                                   |  |                                    |        |   |               |   |         |                                    |        |   |         |      |  |   |        |   |  |   |         |   |  |   |         |  
|Interest-bearing liabilities:                      |  |                                    |        |   |               |   |         |                                    |        |   |         |      |  |   |        |   |  |   |         |   |  |   |         |  
|Interest-bearing demand deposits                   |  |                                    | 2,924  |   |               |   | (2,304  | )                                  |        |   | 620     |      |  |   | (747   | ) |  |   | (7,599  | ) |  |   | (8,346  | )
|Savings and money market accounts                  |  |                                    | 9,831  |   |               |   | (18,196 | )                                  |        |   | (8,365  | )    |  |   | 5,983  |   |  |   | (13,302 | ) |  |   | (7,319  | )
|Certificates of deposit                            |  |                                    | 26,413 |   |               |   | (30,526 | )                                  |        |   | (4,113  | )    |  |   | 20,619 |   |  |   | (19,944 | ) |  |   | 675     |  
|Junior subordinated debentures                     |  |                                    | (498   | ) |               |   | (2,181  | )                                  |        |   | (2,679  | )    |  |   | (1,987 | ) |  |   | (1,632  | ) |  |   | (3,619  | )
|Securities sold under repurchase agreements        |  |                                    | 264    |   |               |   | (1,486  | )                                  |        |   | (1,222  | )    |  |   | 558    |   |  |   | (1,196  | ) |  |   | (638    | )
|Other borrowings                                   |  |                                    | (1,424 | ) |               |   | (453    | )                                  |        |   | (1,877  | )    |  |   | 2,172  |   |  |   | (2,949  | ) |  |   | (777    | )
|                                                   |  |                                    |        |   |               |   |         |                                    |        |   |         |      |  |   |        |   |  |   |         |   |  |   |         |  
|Total increase (decrease) in interest expense      |  |                                    | 37,510 |   |               |   | (55,146 | )                                  |        |   | (17,636 | )    |  |   | 26,598 |   |  |   | (46,622 | ) |  |   | (20,024 | )
|                                                   |  |                                    |        |   |               |   |         |                                    |        |   |         |      |  |   |        |   |  |   |         |   |  |   |         |  
|Increase in net interest income                    |  | $                                  | 56,274 |   |               | $ | 23,098  |                                    |        | $ | 79,372  |      |  | $ | 17,691 |   |  | $ | 9,603   |   |  | $ | 27,294  |  
|                                                   |  |                                    |        |   |               |   |         |                                    |        |   |         |      |  |   |        |   |  |   |         |   |  |   |         |  

Provision for Credit Losses

The Companys provision for credit losses is established through charges to income in the form of the provision in order to bring the Companys allowance for credit losses to a level deemed
appropriate by management based on the factors discussed under Financial ConditionAllowance for Credit Losses. The allowance for credit losses at December 31, 2009 was $51.9 million, representing 1.54% of outstanding loans as
of such date. The provision for credit losses for the year ended December 31, 2009 was $28.8 million compared with $9.9 million for the year ended December 31, 2008. Net charge-offs for the year ended December 31, 2009 were $13.9
million compared with $7.6 million in net charge-offs for the year ended December 31, 2008. The provision for credit losses for the year ended December 31, 2008 was $9.9 million compared with $760,000 for the year ended December 31,
2007. Net charge-offs for the year ended December 31, 2007 were $5.6 million.

Noninterest Income

The Companys primary sources of recurring noninterest income are service charges on deposit accounts and other banking service related
fees. Noninterest income does not include loan origination fees which are recognized over the life of the related loan as an adjustment to yield using the interest method. Banking related service fees include check cashing fees, official check fees,
safe deposit box rent and currency handling fees. For the year ended December 31, 2009, noninterest income totaled $60.1 million, an increase of $7.7 million or



38



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##### Table of Contents

##### Index to Financial Statements

14.8% compared with $52.4 million in 2008. The increase was primarily due to an increase in insufficient funds charges and customer service charges which resulted from an increase in the number
of accounts due to the acquisition of six (6) branches of Banco Popular and the 1stChoice and Franklin Bank acquisitions in 2008 and a decrease in net losses on sale of other real estate partially offset by a decrease in income from leased assets. The decrease in income from leased
assets was due to the expiration of various lease agreements in 2009. Noninterest income for 2008 was $52.4 million, a decrease of $553,000 or 1.0% compared with $52.9 million in 2007.

The following table presents, for the periods indicated, the major categories of noninterest income:



|                                        |  |                          |        |     |      |   |        |      |  |   |        |    
|--------------------------------------- |  | ------------------------ | ------ | --- | ---- | - | ------ | ---- |  | - | ------ | ---
|                                        |  | Years Ended December 31, |       
|                                        |  | 2009                     |        |     | 2008 |   |        | 2007 | 
|                                        |  | (Dollars in thousands)   |       
|Service charges on deposit accounts.    |  | $                        | 51,742 |     |      | $ | 45,785 |      |  | $ | 40,937 |    
|Banking related service fees            |  |                          | 2,009  |     |      |   | 1,963  |      |  |   | 1,737  |    
|Brokered mortgage income                |  |                          | 305    |     |      |   | 330    |      |  |   | 679    |    
|Trust and investment income             |  |                          | 585    |     |      |   | 393    |      |  |   | 1,202  |    
|Income from leased assets               |  |                          | 318    |     |      |   | 1,079  |      |  |   | 1,323  |    
|Bank Owned Life Insurance income (BOLI) |  |                          | 1,344  |     |      |   | 2,011  |      |  |   | 1,893  |    
|Gains (losses) on sales of assets (net) |  |                          | 839    | (1) |      |   | (1,486 | )(2) |  |   | 819    | (3)
|Net gain on sale of securities          |  |                          |       |     |      |   |       |      |  |   | 86     |    
|Gain on held for sale loans             |  |                          |       |     |      |   | 229    |      |  |   | 1,334  |    
|Other noninterest income                |  |                          | 2,955  |     |      |   | 2,066  |      |  |   | 2,913  |    
|                                        |  |                          |        |     |      |   |        |      |  |   |        |    
|Total noninterest income.               |  | $                        | 60,097 |     |      | $ | 52,370 |      |  | $ | 52,923 |    
|                                        |  |                          |        |     |      |   |        |      |  |   |        |    



|(1) | Includes net gains on the sale of various other real estate properties of $417,000 and gains on the sale of real estate.
|--- | ------------------------------------------------------------------------------------------------------------------------

|(2) | Includes net losses on the sale of various other real estate properties of $2.3 million and gains on the sale of real estate.
|--- | -----------------------------------------------------------------------------------------------------------------------------

|(3) | Includes net gains on the sale of various other real estate properties of $546,000 and gains on the sale of real estate.
|--- | ------------------------------------------------------------------------------------------------------------------------

Noninterest Expense

For
the year ended December 31, 2009, noninterest expense totaled $169.7 million, an increase of $25.9 million or 18.0% compared with $143.8 million for the same period in 2008. This increase was principally due to increases in salaries and
employee benefits, net occupancy and increases in FDIC assessments, partially offset by a $14.0 million impairment write-down on Fannie Mae and Freddie Mac preferred stock in 2008 discussed further under Securities. For the year
ended December 31, 2008, noninterest expense totaled $143.8 million, an increase of $17.0 million or 13.4% compared with $126.8 million for the same period in 2007. The increase was primarily attributable to increases in salaries and employee
benefits, impairment write-down on securities and the additional general operating costs associated with the acquisitions completed in 2007. These items and other changes in the various components of noninterest expense are discussed in more detail
below.



39



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##### Table of Contents

##### Index to Financial Statements

The following table presents, for the periods indicated, the major categories of noninterest
expense:



|                                          |  |                          |         |      |   |         |  |   |        
|----------------------------------------- |  | ------------------------ | ------- | ---- | - | ------- |  | - | -------
|                                          |  | Years Ended December 31,
|                                          |  | 2009                     |         | 2008 |   | 2007   
|                                          |  | (Dollars in thousands)  
|Salaries and employee benefits            |  | $                        | 84,395  |      | $ | 70,818  |  | $ | 63,910 
|Non-staff expenses:                       |  |                          |         |      |   |         |  |   |        
|Net occupancy expense                     |  |                          | 14,910  |      |   | 12,470  |  |   | 10,534 
|Depreciation expense                      |  |                          | 8,226   |      |   | 7,666   |  |   | 7,611  
|Data processing                           |  |                          | 6,449   |      |   | 5,580   |  |   | 4,570  
|Regulatory assessments and FDIC insurance |  |                          | 13,662  |      |   | 1,843   |  |   | 1,035  
|Ad valorem and franchise taxes            |  |                          | 3,561   |      |   | 2,884   |  |   | 2,462  
|Core deposit intangibles amortization     |  |                          | 10,076  |      |   | 9,797   |  |   | 9,917  
|Communications expense(1)                 |  |                          | 8,466   |      |   | 6,582   |  |   | 6,351  
|Impairment write-down on securities       |  |                          |        |      |   | 14,025  |  |   | 9,975  
|Other                                     |  |                          | 19,955  |      |   | 12,131  |  |   | 10,478 
|                                          |  |                          |         |      |   |         |  |   |        
|Total noninterest expense(2)              |  | $                        | 169,700 |      | $ | 143,796 |  | $ | 126,843
|                                          |  |                          |         |      |   |         |  |   |        



|(1) | Communications expense includes telephone, data circuits, postage and courier expenses.
|--- | ---------------------------------------------------------------------------------------

|(2) | Total noninterest expense includes $1.5 million, $1.5 million and $2.0 million in 2009, 2008 and 2007, respectively, in stock-based compensation expense.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------

Salaries and Employee Benefits. Salaries and employee benefits increased $13.6 million to $84.4 million
at December 31, 2009 compared with $70.8 million at December 31, 2008 primarily due to the full year effect of the staff added with the Franklin Bank acquisition in November 2008. The number of associates employed by the Company increased
from 1,359 at December 31, 2007 to 1,594 at December 31, 2009. Salaries and employee benefits increased $6.9 million from $63.9 million at December 31, 2007 to $70.8 million at December 31, 2008 primarily due to staff added with
the Franklin acquisition. Total noninterest expense for the year ended December 31, 2009 includes $1.5 million in stock-based compensation expense compared with $1.5 million and $2.0 million recorded for the years ended December 31, 2008
and 2007, respectively.

Net Occupancy and Depreciation Expenses. Net occupancy expense increased $2.4 million or 19.6%
to $14.9 million for the year ended December 31, 2009 compared with $12.5 million for the year ended December 31, 2008. The increase was primarily attributable to the additional banking centers acquired in 2008. Depreciation expense
increased $560,000 to $8.2 million for the year ended December 31, 2009 compared with $7.7 million for the same period in 2008. Net occupancy expense increased $1.9 million or 18.4% to $12.5 million for the year ended December 31, 2008
compared with $10.5 million for the year ended December 31, 2007. Depreciation expense increased $55,000 million to $7.7 million compared with $7.6 million for the same periods. These increases were primarily attributable to the
acquisitions in 2007 and 2008.

Regulatory Assessments and FDIC Insurance. Regulatory assessments and FDIC insurance
assessments increased $11.8 million or 641.3% from $1.8 million for the year ended December 31, 2008 to $13.7 million for the year ended December 31, 2009. The increase was primarily due to higher FDIC assessment rates and an increase in
the amount of the Companys deposits in connection with its 2008 acquisitions. On January 1, 2009, the FDIC increased the DIF assessment rates effective April 1, 2009 as part of the FDICs DIF restoration plan as discussed under
the section captioned Supervision and RegulationThe BankDeposit Insurance Assessments in Part I, Item 1 of this Annual Report on Form 10-K. Additionally, in May 2009, the FDIC issued a rule which levied a special assessment
of 5 basis points on an institutions total assets less its Tier 1 capital as of June 30, 2009 to restore the DIF to an acceptable level. The special assessment, which for the Company was $4.2 million, was accrued on June 30, 2009 and
paid on September 30, 2009. Regulatory assessments and FDIC insurance assessments increased $808,000 or 78.1% from $1.0 million for the year ended December 31, 2007 to $1.8 million for the year ended December 31, 2008.



40



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##### Table of Contents

##### Index to Financial Statements

Core Deposit Intangibles Amortization. Core deposit intangibles
(CDI) amortization increased $279,000 or 2.8% from $9.8 million for the year December 31, 2008 to $10.1 million for the year ended December 31, 2009. The increase was primarily due to the 1stChoice, Banco Popular and Franklin Bank acquisitions. Core deposit
intangibles amortization decreased $120,000 or 1.2% from $9.9 million for the year ended December 31, 2007 to $9.8 million for the year ended December 31, 2008. Core deposit intangibles are being amortized on an accelerated basis over an
estimated life of eight to ten years.

Communications Expense. Communications expense includes telephone, data
circuits, postage and courier expenses. Communications expense increased $1.9 million or 28.6% from $6.6 million for the year ended December 31, 2008 to $8.5 million for the year ended December 31, 2009. Communications expense increased
$231,000 or 3.6% from $6.4 million for the year ended December 31, 2007 to $6.6 million for the year ended December 31, 2008.

Other Noninterest Expense.Other operating expenses increased $7.8 million or 64.5% from $12.1 million at December 31, 2008 to $20.0 million for the year ended December 31, 2009. The
increase was primarily attributable to the additional general expenses incurred due to the Franklin Bank acquisition and increases in advertising and legal fees. Other operating expenses increased $1.7 million or 15.8% from $10.5 million at
December 31, 2007 to $12.1 million for the year ended December 31, 2008. The increase was primarily attributable to the additional general expenses incurred due to the 2008 acquisitions.

Efficiency Ratio. The efficiency ratio is a supplemental financial measure utilized in managements internal evaluation of the
Company and is not defined under generally accepted accounting principles. The efficiency ratio is calculated by dividing total noninterest expense, excluding credit loss provisions and impairment write-down on available for sale securities, by net
interest income plus noninterest income, excluding net gains and losses on the sale of securities and on the sale of assets. Taxes are not part of this calculation. An increase in the efficiency ratio indicates that more resources are being utilized
to generate the same volume of income, while a decrease would indicate a more efficient allocation of resources. The Companys efficiency ratio was 46.27% at December 31, 2009, compared with 46.51% at December 31, 2008. The
Companys efficiency ratio was 46.19% at December 31, 2007.

Income Taxes

The amount of federal income tax expense is influenced by the amount of taxable income, the amount of tax-exempt income, the amount of
nondeductible interest expense and the amount of other nondeductible expenses. For the year ended December 31, 2009, income tax expense was $56.8 million compared with $41.9 million for the year ended December 31, 2008 and $41.6
million for the year ended December 31, 2007. The increases were primarily attributable to higher pretax net earnings which resulted primarily from an increase in net interest income for the year ended December 31, 2009 compared with the
same period in 2008 and 2007. The effective tax rate for the years ended December 31, 2009, 2008 and 2007 was 33.7%, 33.2% and 33.1%, respectively. The effective income tax rates differed from the U.S. statutory rate of 35% during the
comparable periods primarily due to the effect of tax-exempt income from loans and securities.

Impact of Inflation

The Companys consolidated financial statements and related notes included in this Annual Report on Form 10-K have been prepared in
accordance with generally accepted accounting principles. These require the measurement of financial position and operating results in terms of historical dollars, without considering changes in the relative purchasing power of money over time due
to inflation.

Unlike many industrial companies, substantially all of the Companys assets and liabilities are monetary
in nature. As a result, interest rates have a more significant impact on the Companys performance than the effects of general levels of inflation. Interest rates may not necessarily move in the same direction or in the same magnitude as the
prices of goods and services. However, other expenses do reflect general levels of inflation.



41



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##### Table of Contents

##### Index to Financial Statements

Financial Condition

Loan Portfolio

At December 31, 2009, total loans were $3.377 billion, a decrease of $190.4 million or 5.3% compared with $3.567 billion at December 31, 2008. The decrease was primarily attributable to a reduction in construction and land
development loans and commercial and industrial loans due to decreased demand as a result of a general weakening of the economy. At December 31, 2009, total loans were 46.5% of deposits and 38.2% of total assets. At December 31, 2008,
total loans were $3.567 billion, an increase of $424.1 million or 13.5% compared with $3.143 billion at December 31, 2007. The growth in loans from December 31, 2007 to December 31, 2008 was primarily attributable to the Franklin Bank
acquisition, the 1stChoice acquisition and the
acquisition of six (6) branches of Banco Popular. At December 31, 2008, total loans were 48.8% of deposits and 39.3% of total assets.

The following table summarizes the Companys loan portfolio by type of loan as of the dates indicated:



|                                    |  |                        |           |     |         |       |   |        |   |           |      |       |        |      |         |           |  |        |   |         |   |           |        |       |         |  |   |           |  |       |  
|----------------------------------- |  | ---------------------- | --------- | --- | ------- | ----- | - | ------ | - | --------- | ---- | ----- | ------ | ---- | ------- | --------- |  | ------ | - | ------- | - | --------- | ------ | ----- | ------- |  | - | --------- |  | ----- | -
|                                    |  | December 31,           |          
|                                    |  | 2009                   |           |     | 2008    |       |   | 2007   |   |           | 2006 |       |        | 2005 |        
|                                    |  | Amount                 |           |     | Percent |       |   | Amount |   | Percent   |      |       | Amount |      | Percent |           |  | Amount |   | Percent |   |           | Amount |       | Percent | 
|                                    |  | (Dollars in thousands) |          
|Commercial and industrial           |  | $                      | 392,975   |     |         | 11.6  | % |        | $ | 482,476   |      | 13.5  | %      |      | $       | 436,338   |  | 13.9   | % |         | $ | 280,957   |        | 12.9  | %       |  | $ | 222,773   |  | 14.4  | %
|Real estate:                        |  |                        |           |     |         |       |   |        |   |           |      |       |        |      |         |           |  |        |   |         |   |           |        |       |         |  |   |           |  |       |  
|Construction and land development   |  |                        | 557,245   |     |         | 16.5  |   |        |   | 666,081   |      | 18.7  |        |      |         | 683,171   |  | 21.7   |   |         |   | 433,178   |        | 19.9  |         |  |   | 206,653   |  | 13.4  |  
|1-4 family residential              |  |                        | 709,101   |     |         | 21.0  |   |        |   | 668,097   |      | 18.7  |        |      |         | 526,338   |  | 16.7   |   |         |   | 376,996   |        | 17.3  |         |  |   | 313,184   |  | 20.3  |  
|Home equity                         |  |                        | 117,661   |     |         | 3.5   |   |        |   | 107,048   |      | 3.0   |        |      |         | 93,877    |  | 3.0    |   |         |   | 63,427    |        | 2.9   |         |  |   | 58,729    |  | 3.8   |  
|Commercial mortgage                 |  |                        | 1,261,267 | (1) |         | 37.4  |   |        |   | 1,268,340 |      | 35.6  |        |      |         | 1,075,285 |  | 34.3   |   |         |   | 803,145   |        | 36.9  |         |  |   | 566,356   |  | 36.7  |  
|Farmland                            |  |                        | 93,288    |     |         | 2.8   |   |        |   | 96,970    |      | 2.7   |        |      |         | 63,873    |  | 2.0    |   |         |   | 30,925    |        | 1.4   |         |  |   | 30,920    |  | 2.0   |  
|Multifamily residential             |  |                        | 77,952    |     |         | 2.3   |   |        |   | 75,063    |      | 2.1   |        |      |         | 73,424    |  | 2.3    |   |         |   | 77,980    |        | 3.6   |         |  |   | 32,039    |  | 2.1   |  
|Agriculture                         |  |                        | 42,241    |     |         | 1.3   |   |        |   | 48,679    |      | 1.3   |        |      |         | 50,146    |  | 1.6    |   |         |   | 26,504    |        | 1.2   |         |  |   | 25,429    |  | 1.6   |  
|Consumer (net of unearned discount) |  |                        | 102,436   |     |         | 3.0   |   |        |   | 137,639   |      | 3.9   |        |      |         | 123,213   |  | 3.9    |   |         |   | 66,675    |        | 3.1   |         |  |   | 65,183    |  | 4.3   |  
|Other                               |  |                        | 22,537    |     |         | 0.6   |   |        |   | 16,664    |      | 0.5   |        |      |         | 17,306    |  | 0.6    |   |         |   | 16,720    |        | 0.8   |         |  |   | 20,859    |  | 1.4   |  
|                                    |  |                        |           |     |         |       |   |        |   |           |      |       |        |      |         |           |  |        |   |         |   |           |        |       |         |  |   |           |  |       |  
|Total loans(2)                      |  | $                      | 3,376,703 |     |         | 100.0 | % |        | $ | 3,567,057 |      | 100.0 | %      |      | $       | 3,142,971 |  | 100.0  | % |         | $ | 2,176,507 |        | 100.0 | %       |  | $ | 1,542,125 |  | 100.0 | %
|                                    |  |                        |           |     |         |       |   |        |   |           |      |       |        |      |         |           |  |        |   |         |   |           |        |       |         |  |   |           |  |       |  



|(1) | Commercial mortgage loans include approximately $613.6 million of owner-occupied loans for the year ended December 31, 2009.
|--- | ----------------------------------------------------------------------------------------------------------------------------

|(2) | Includes loans held for sale for all applicable years.
|--- | ------------------------------------------------------

The Companys commercial and industrial loans decreased from $482.5 million at December 31, 2008 to $393.0 million at December 31, 2009, a decrease of $89.5 million or 18.6%. The
Companys commercial mortgages decreased from $1.268 billion at December 31, 2008 to $1.261 billion at December 31, 2009, a decrease of $7.1 million or 0.5%. The Company offers a variety of commercial lending products including
term loans and lines of credit. The Company offers a broad range of short to medium-term commercial loans, primarily collateralized, to businesses for working capital (including inventory and receivables), business expansion (including acquisitions
of real estate and improvements) and the purchase of equipment and machinery. Historically, the Company has originated loans for its own account and has not securitized its loans. The purpose of a particular loan generally determines its structure.
All loans in the 1-4 family residential category were originated by the Company.

All loans over $500,000 and below $2.5
million are evaluated and acted upon on a daily basis by two of the six company-wide loan concurrence officers. All loans above $2.5 million are evaluated and acted upon by an officers loan committee which meets weekly. In addition to the
officers loan committee evaluation, loans from $15.0 million to $25.0 million are evaluated and acted upon by the directors loan committee which consists of three directors of the Bank and meets as necessary. Loans over $25.0 million are
evaluated and acted upon by the Banks board of directors either at a regularly scheduled monthly board meeting or by teleconference or written consent.



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##### Index to Financial Statements

Commercial and Industrial Loans. In nearly all cases, the Companys commercial
loans are made in the Companys market areas and are underwritten on the basis of the borrowers ability to service the debt from income. As a general practice, the Company takes as collateral a lien on any available real estate, equipment
or other assets owned by the borrower and obtains a personal guaranty of the borrower or principal. Working capital loans are primarily collateralized by short-term assets whereas term loans are primarily collateralized by long-term assets. In
general, commercial loans involve more credit risk than residential mortgage loans and commercial mortgage loans and, therefore, usually yield a higher return. The increased risk in commercial loans is due to the type of collateral securing these
loans. The increased risk also derives from the expectation that commercial loans generally will be serviced principally from the operations of the business, and those operations may not be successful. Historical trends have shown these types of
loans to have higher delinquencies than mortgage loans. As a result of these additional complexities, variables and risks, commercial loans require more thorough underwriting and servicing than other types of loans.

Commercial Mortgages. The Company makes commercial mortgage loans collateralized by real estate to finance the purchase of real
estate. The Companys commercial mortgage loans are collateralized by first liens on real estate, typically have variable interest rates (or five year or less fixed rates) and amortize over a 15 to 20 year period. Payments on loans secured by
such properties are often dependent on the successful operation or management of the properties. Accordingly, repayment of these loans may be subject to adverse conditions in the real estate market or the economy to a greater extent than other types
of loans. The Company seeks to minimize these risks in a variety of ways, including giving careful consideration to the propertys operating history, future operating projections, current and projected occupancy, location and physical condition
in connection with underwriting these loans. The underwriting analysis also includes credit verification, analysis of global cash flow, appraisals and a review of the financial condition of the borrower.

1-4 Family Residential Loans. The Companys lending activities also includes the origination of 1-4 family residential mortgage
loans collateralized by owner-occupied residential properties located in the Companys market areas. The Company offers a variety of mortgage loan products which generally are amortized over five to 25 years. Loans collateralized by 1-4 family
residential real estate generally have been originated in amounts of no more than 89% of appraised value or have mortgage insurance. The Company requires mortgage title insurance and hazard insurance. Other than with respect to mortgage banking
activities acquired in the TXUI acquisition, the Company has elected to keep all 1-4 family residential loans for its own account rather than selling such loans into the secondary market. By doing so, the Company is able to realize a higher yield on
these loans; however, the Company also incurs interest rate risk as well as the risks associated with nonpayments on such loans.

Construction and Land Development Loans. The Company makes loans to finance the construction of residential and, to a lesser extent, nonresidential properties. Construction loans generally are collateralized by first liens on real
estate and have floating interest rates. The Company conducts periodic inspections, either directly or through an agent, prior to approval of periodic draws on these loans. Underwriting guidelines similar to those described above are also used in
the Companys construction lending activities. Construction loans involve additional risks attributable to the fact that loan funds are advanced upon the security of a project under construction, and the project is of uncertain value prior to
its completion. Because of uncertainties inherent in estimating construction costs, the market value of the completed project and the effects of governmental regulation on real property, it can be difficult to accurately evaluate the total funds
required to complete a project and the related loan to value ratio. As a result of these uncertainties, construction lending often involves the disbursement of substantial funds with repayment dependent, in part, on the success of the ultimate
project rather than the ability of a borrower or guarantor to repay the loan. If the Company is forced to foreclose on a project prior to completion, there is no assurance that the Company will be able to recover all of the unpaid portion of the
loan. In addition, the Company may be required to fund additional amounts to complete a project and may have to hold the property for an indeterminate period of time. While the Company has underwriting procedures designed to identify what it
believes to be acceptable levels of risks in construction lending, no assurance can be given that these procedures will prevent losses from the risks described above.



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##### Index to Financial Statements

Agriculture Loans. The Company provides agriculture loans for short-term crop
production, including rice, cotton, milo and corn, farm equipment financing and agriculture real estate financing. The Company evaluates agriculture borrowers primarily based on their historical profitability, level of experience in their particular
agriculture industry, overall financial capacity and the availability of secondary collateral to withstand economic and natural variations common to the industry. Because agriculture loans present a higher level of risk associated with events caused
by nature, the Company routinely makes on-site visits and inspections in order to identify and monitor such risks.

Consumer Loans. Consumer loans made by the Company include direct A-credit automobile loans, recreational vehicle loans, boat loans, home improvement loans, home equity loans, personal loans (collateralized and
uncollateralized) and deposit account collateralized loans. The terms of these loans typically range from 12 to 120 months and vary based upon the nature of collateral and size of loan. Generally, consumer loans entail greater risk than do real
estate secured loans, particularly in the case of consumer loans that are unsecured or collateralized by rapidly depreciating assets such as automobiles. In such cases, any repossessed collateral for a defaulted consumer loan may not provide an
adequate source of repayment for the outstanding loan balance. The remaining deficiency often does not warrant further substantial collection efforts against the borrower beyond obtaining a deficiency judgment. In addition, consumer loan collections
are dependent on the borrowers continuing financial stability, and thus are more likely to be adversely affected by job loss, divorce, illness or personal bankruptcy. Furthermore, the application of various federal and state laws may limit the
amount which can be recovered on such loans.

The contractual maturity ranges of the 1-4 family residential, home equity,
commercial and industrial, commercial mortgage, construction and land development and agriculture portfolios and the amount of such loans with predetermined interest rates and floating rates in each maturity range as of December 31, 2009 are
summarized in the following table:



|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          
|----------------------------------------- |  | ---------------------- | ------- | -------------------------- | - | --------------- |  | ----- | --------- |  | - | ---------
|                                          |  | December 31, 2009     
|                                          |  | One Yearor Less        |         | After OneThroughFive Years |   | After FiveYears |  | Total
|                                          |  | (Dollars in thousands)
|1-4 family residential and home equity    |  | $                      | 17,236  |                            | $ | 68,102          |  | $     | 741,424   |  | $ | 826,762  
|Commercial and industrial                 |  |                        | 172,945 |                            |   | 152,456         |  |       | 67,574    |  |   | 392,975  
|Commercial mortgages                      |  |                        | 60,187  |                            |   | 138,943         |  |       | 1,062,137 |  |   | 1,261,267
|Construction and land development         |  |                        | 154,685 |                            |   | 105,506         |  |       | 297,054   |  |   | 557,245  
|Agriculture                               |  |                        | 27,483  |                            |   | 13,990          |  |       | 768       |  |   | 42,241   
|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          
|Total                                     |  | $                      | 432,536 |                            | $ | 478,997         |  | $     | 2,168,957 |  | $ | 3,080,490
|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          
|Loans with a predetermined interest rate. |  | $                      | 142,225 |                            | $ | 289,979         |  | $     | 797,186   |  | $ | 1,229,390
|Loans with a floating interest rate.      |  |                        | 290,311 |                            |   | 189,018         |  |       | 1,371,771 |  |   | 1,851,100
|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          
|Total                                     |  | $                      | 432,536 |                            | $ | 478,997         |  | $     | 2,168,957 |  | $ | 3,080,490
|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          

Nonperforming Assets

The Company has several procedures in place to assist it in maintaining the overall quality of its loan portfolio. The Company has
established underwriting guidelines to be followed by its officers and the Company also monitors its delinquency levels for any negative or adverse trends. There can be no assurance, however, that the Companys loan portfolio will not become
subject to increasing pressures from deteriorating borrower credit due to general economic conditions.

The Company generally
places a loan on nonaccrual status and ceases accruing interest when the payment of principal or interest is delinquent for 90 days, or earlier in some cases, unless the loan is in the process of collection and the underlying collateral fully
supports the carrying value of the loan.



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##### Index to Financial Statements

The Company requires appraisals on loans collateralized by real estate. With respect to
potential problem loans, an evaluation of the borrowers overall financial condition is made to determine the need, if any, for possible writedowns or appropriate additions to the allowance for credit losses.

The Companys conservative lending approach has resulted in strong asset quality. The Company had $16.4 million in nonperforming assets
at December 31, 2009 compared with $14.4 million at December 31, 2008 and $15.4 million at December 31, 2007. The nonperforming assets at December 31, 2009 consisted of one hundred-thirteen (113) separate credits or ORE
properties, of which forty-six (46) credits were related to loans acquired in the Companys 2008 and 2007 acquisitions. If interest on nonaccrual loans had been accrued under the original loan terms, approximately $434,000, $121,000 and
$47,000 would have been recorded as income for the years ended December 31, 2009, 2008 and 2007, respectively.

The
following table presents information regarding past due loans and nonperforming assets at the dates indicated:



|                                                          |  |                        |        |   |      |   |        |      |  |   |        |   |  |      |       |   |  |   |       |  
|--------------------------------------------------------- |  | ---------------------- | ------ | - | ---- | - | ------ | ---- |  | - | ------ | - |  | ---- | ----- | - |  | - | ----- | -
|                                                          |  | December 31,           |       
|                                                          |  | 2009                   |        |   | 2008 |   |        | 2007 |  |   | 2006   |   |  | 2005 |      
|                                                          |  | (Dollars in thousands) |       
|Nonaccrual loans                                          |  | $                      | 6,079  |   |      | $ | 2,142  |      |  | $ | 1,035  |   |  | $    | 181   |   |  | $ | 355   |  
|Accruing loans 90 or more days past due                   |  |                        | 2,332  |   |      |   | 7,594  |      |  |   | 4,092  |   |  |      | 767   |   |  |   | 788   |  
|                                                          |  |                        |        |   |      |   |        |      |  |   |        |   |  |      |       |   |  |   |       |  
|Total nonperforming loans                                 |  |                        | 8,411  |   |      |   | 9,736  |      |  |   | 5,127  |   |  |      | 948   |   |  |   | 1,143 |  
|Repossessed assets                                        |  |                        | 116    |   |      |   | 182    |      |  |   | 56     |   |  |      | 32    |   |  |   | 26    |  
|Other real estate                                         |  |                        | 7,829  |   |      |   | 4,450  |      |  |   | 10,207 |   |  |      | 140   |   |  |   | 239   |  
|                                                          |  |                        |        |   |      |   |        |      |  |   |        |   |  |      |       |   |  |   |       |  
|Total nonperforming assets                                |  | $                      | 16,356 |   |      | $ | 14,368 |      |  | $ | 15,390 |   |  | $    | 1,120 |   |  | $ | 1,408 |  
|                                                          |  |                        |        |   |      |   |        |      |  |   |        |   |  |      |       |   |  |   |       |  
|Nonperforming assets to total loans and other real estate |  |                        | 0.48   | % |      |   | 0.40   | %    |  |   | 0.49   | % |  |      | 0.05  | % |  |   | 0.09  | %
|Nonperforming assets to average earning assets            |  |                        | 0.22   | % |      |   | 0.25   | %    |  |   | 0.31   | % |  |      | 0.03  | % |  |   | 0.05  | %



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##### Index to Financial Statements

Allowance for Credit Losses

The following table presents, as of and for the periods indicated, an analysis of the allowance for credit losses and other related data:



|                                                        |  |                          |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|------------------------------------------------------- |  | ------------------------ | --------- | - | ---- | - | --------- | ---- |  | - | --------- | - |  | ---- | --------- | - |  | - | --------- | -
|                                                        |  | Years Ended December 31, |          
|                                                        |  | 2009                     |           |   | 2008 |   |           | 2007 |  |   | 2006      |   |  | 2005 |          
|                                                        |  | (Dollars in thousands)   |          
|Average loans outstanding                               |  | $                        | 3,455,761 |   |      | $ | 3,250,447 |      |  | $ | 3,092,797 |   |  | $    | 2,037,379 |   |  | $ | 1,435,376 |  
|                                                        |  |                          |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Gross loans outstanding at end of period                |  | $                        | 3,376,703 |   |      | $ | 3,567,057 |      |  | $ | 3,142,971 |   |  | $    | 2,176,507 |   |  | $ | 1,542,125 |  
|                                                        |  |                          |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Allowance for credit losses at beginning of period      |  | $                        | 36,970    |   |      | $ | 32,543    |      |  | $ | 23,990    |   |  | $    | 17,203    |   |  | $ | 13,105    |  
|Balance acquired with acquisitions                      |  |                          |          |   |      |   | 2,182     |      |  |   | 13,386    |   |  |      | 7,054     |   |  |   | 4,028     |  
|Provision for credit losses                             |  |                          | 28,775    |   |      |   | 9,867     |      |  |   | 760       |   |  |      | 504       |   |  |   | 480       |  
|Charge-offs:                                            |  |                          |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Commercial and industrial                               |  |                          | (3,816    | ) |      |   | (2,799    | )    |  |   | (1,045    | ) |  |      | (353      | ) |  |   | (410      | )
|Real estate and agriculture                             |  |                          | (8,585    | ) |      |   | (3,650    | )    |  |   | (4,143    | ) |  |      | (128      | ) |  |   | (242      | )
|Consumer                                                |  |                          | (2,998    | ) |      |   | (2,733    | )    |  |   | (2,974    | ) |  |      | (696      | ) |  |   | (240      | )
|Recoveries:                                             |  |                          |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Commercial and industrial                               |  |                          | 275       |   |      |   | 308       |      |  |   | 1,175     |   |  |      | 95        |   |  |   | 188       |  
|Real estate and agriculture                             |  |                          | 236       |   |      |   | 220       |      |  |   | 208       |   |  |      | 59        |   |  |   | 184       |  
|Consumer                                                |  |                          | 1,006     |   |      |   | 1,032     |      |  |   | 1,186     |   |  |      | 252       |   |  |   | 110       |  
|                                                        |  |                          |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Net charge-offs                                         |  |                          | (13,882   | ) |      |   | (7,622    | )    |  |   | (5,593    | ) |  |      | (771      | ) |  |   | (410      | )
|                                                        |  |                          |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Allowance for credit losses at end of period            |  | $                        | 51,863    |   |      | $ | 36,970    |      |  | $ | 32,543    |   |  | $    | 23,990    |   |  | $ | 17,203    |  
|                                                        |  |                          |           |   |      |   |           |      |  |   |           |   |  |      |           |   |  |   |           |  
|Ratio of allowance to end of period loans               |  |                          | 1.54      | % |      |   | 1.04      | %    |  |   | 1.04      | % |  |      | 1.10      | % |  |   | 1.12      | %
|Ratio of net charge-offs to average loans               |  |                          | 0.40      |   |      |   | 0.23      |      |  |   | 0.18      |   |  |      | 0.04      |   |  |   | 0.03      |  
|Ratio of allowance to end of period nonperforming loans |  |                          | 616.6     |   |      |   | 379.7     |      |  |   | 634.7     |   |  |      | 2,530.6   |   |  |   | 1,505.1   |  

The allowance for
credit losses is a valuation established through charges to earnings in the form of a provision for credit losses. Management has established an allowance for credit losses which it believes is adequate for estimated losses in the Companys
loan portfolio. The amount of the allowance for credit losses is affected by the following: (i) charge-offs of loans that occur when loans are deemed uncollectible and decrease the allowance, (ii) recoveries on loans previously charged off that
increase the allowance and (iii) provisions for credit losses charged to earnings that increase the allowance. Based on an evaluation of the loan portfolio and consideration of the factors listed below, management presents a quarterly review of the
allowance for credit losses to the Banks Board of Directors, indicating any change in the allowance since the last review and any recommendations as to adjustments in the allowance.

The Companys allowance for credit losses consists of two components: a specific valuation allowance based on probable losses on
specifically identified loans and a general valuation allowance based on historical loan loss experience, general economic conditions and other qualitative risk factors both internal and external to the Company.

In setting the specific valuation allowance, the Company follows a loan review program to evaluate the credit risk in the loan portfolio.
Through this loan review process, the Company maintains an internal list of impaired loans which, along with the delinquency list of loans, helps management assess the overall quality of the loan portfolio and the adequacy of the allowance for
credit losses. All loans that have been identified as impaired are reviewed on a quarterly basis in order to determine whether a specific reserve is required. For each



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##### Index to Financial Statements

impaired loan, the Company allocates a specific loan loss reserve primarily based on the value of the collateral securing the impaired loan in accordance with ASC Topic 310. The specific reserves
are determined on an individual loan basis. Loans for which specific reserves are provided are excluded from the general valuation allowance described below.

In determining the amount of the general valuation allowance, management considers factors such as historical loan loss experience, industry diversification of the Companys commercial loan
portfolio, concentration risk of specific loan types, the volume, growth and composition of the Companys loan portfolio, current economic conditions that may affect the borrowers ability to pay and the value of collateral, the evaluation
of the Companys loan portfolio through its internal loan review process, general economic conditions and other qualitative risk factors both internal and external to the Company and other relevant factors in accordance with ASC Topic 450.
Based on a review of these factors for each loan type, the Company applies an estimated percentage to the outstanding balance of each loan type, excluding any loan that has a specific reserve allocated to it. The Company uses this information to
establish the amount of the general valuation allowance.

In connection with its review of the loan portfolio, the Company
considers risk elements attributable to particular loan types or categories in assessing the quality of individual loans. Some of the risk elements include:



| |  |  | for 1-4 family residential mortgage loans, the borrowers ability to repay the loan, including a consideration of the debt to income ratio and
employment and income stability, the loan to value ratio, and the age, condition and marketability of collateral;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | for commercial mortgage loans and multifamily residential loans, the debt service coverage ratio (income from the property in excess of operating
expenses compared to loan payment requirements), operating results of the owner in the case of owner-occupied properties, the loan to value ratio, the age and condition of the collateral and the volatility of income, property value and future
operating results typical of properties of that type;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | for agricultural real estate loans, the experience and financial capability of the borrower, projected debt service coverage of the operations of the
borrower and loan to value ratio;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | for construction and land development loans, the perceived feasibility of the project including the ability to sell developed lots or improvements
constructed for resale or ability to lease property constructed for lease, the quality and nature of contracts for presale or preleasing, if any, experience and ability of the developer and loan to value ratio;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | for commercial and industrial loans, the operating results of the commercial, industrial or professional enterprise, the borrowers business,
professional and financial ability and expertise, the specific risks and volatility of income and operating results typical for businesses in that category and the value, nature and marketability of collateral; and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | for non-real estate agricultural loans, the operating results, experience and financial capability of the borrower, historical and expected market
conditions and the value, nature and marketability of collateral.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

In addition, for each category, the
Company considers secondary sources of income and the financial strength and credit history of the borrower and any guarantors.

At December 31, 2009, the allowance for credit losses totaled $51.9 million, or 1.54% of total loans. At December 31, 2008, the allowance aggregated $37.0 million or 1.04% of total loans and at December 31, 2007, the
allowance was $32.5 million or 1.04% of total loans.



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##### Index to Financial Statements

The following tables show the allocation of the allowance for credit losses among various
categories of loans and certain other information as of the dates indicated. The allocation is made for analytical purposes and is not necessarily indicative of the categories in which future losses may occur. The total allowance is available to
absorb losses from any loan category.



|                                                      |  |                        |        |                               |       |   |        |   |                               |  |       |  
|----------------------------------------------------- |  | ---------------------- | ------ | ----------------------------- | ----- | - | ------ | - | ----------------------------- |  | ----- | -
|                                                      |  | December 31,           |       
|                                                      |  | 2009                   |        |                               | 2008  |  
|                                                      |  | Amount                 |        | Percent ofLoans toTotal Loans |       |   | Amount |   | Percent ofLoans toTotal Loans | 
|                                                      |  | (Dollars in thousands) |       
|Balance of allowance for credit losses applicable to: |  |                        |        |                               |       |   |        |   |                               |  |       |  
|Commercial and industrial                             |  | $                      | 5,107  |                               | 11.6  | % |        | $ | 6,159                         |  | 13.5  | %
|Real estate                                           |  |                        | 44,799 |                               | 83.4  |   |        |   | 27,953                        |  | 80.8  |  
|Agriculture                                           |  |                        | 221    |                               | 1.3   |   |        |   | 313                           |  | 1.3   |  
|Consumer and other                                    |  |                        | 1,736  |                               | 3.7   |   |        |   | 2,545                         |  | 4.4   |  
|Unallocated                                           |  |                        |       |                               |      |   |        |   |                              |  |      |  
|                                                      |  |                        |        |                               |       |   |        |   |                               |  |       |  
|Total allowance for credit losses                     |  | $                      | 51,863 |                               | 100.0 | % |        | $ | 36,970                        |  | 100.0 | %
|                                                      |  |                        |        |                               |       |   |        |   |                               |  |       |  



|                                                      |  |                        |        |                               |         |   |        |      |                               |  |       |        |  |                               |        |  |       |  
|----------------------------------------------------- |  | ---------------------- | ------ | ----------------------------- | ------- | - | ------ | ---- | ----------------------------- |  | ----- | ------ |  | ----------------------------- | ------ |  | ----- | -
|                                                      |  | December 31,           |       
|                                                      |  | 2007                   |        |                               | 2006(1) |   |        | 2005 |                              
|                                                      |  | Amount                 |        | Percent ofLoans toTotal Loans |         |   | Amount |      | Percent ofLoans toTotal Loans |  |       | Amount |  | Percent ofLoans toTotal Loans |       
|                                                      |  | (Dollars in thousands) |       
|Balance of allowance for credit losses applicable to: |  |                        |        |                               |         |   |        |      |                               |  |       |        |  |                               |        |  |       |  
|Commercial and industrial                             |  | $                      | 4,790  |                               | 13.9    | % |        | $    | 3,660                         |  | 12.9  | %      |  | $                             | 636    |  | 14.4  | %
|Real estate                                           |  |                        | 22,505 |                               | 80.0    |   |        |      | 18,140                        |  | 82.0  |        |  |                               | 923    |  | 78.3  |  
|Agriculture                                           |  |                        | 506    |                               | 1.6     |   |        |      | 131                           |  | 1.2   |        |  |                               | 28     |  | 1.6   |  
|Consumer and other                                    |  |                        | 2,153  |                               | 4.5     |   |        |      | 732                           |  | 3.9   |        |  |                               | 53     |  | 5.7   |  
|Unallocated                                           |  |                        | 2,589  |                               |        |   |        |      | 1,327                         |  |      |        |  |                               | 15,563 |  |      |  
|                                                      |  |                        |        |                               |         |   |        |      |                               |  |       |        |  |                               |        |  |       |  
|Total allowance for credit losses                     |  | $                      | 32,543 |                               | 100.0   | % |        | $    | 23,990                        |  | 100.0 | %      |  | $                             | 17,203 |  | 100.0 | %
|                                                      |  |                        |        |                               |         |   |        |      |                               |  |       |        |  |                               |        |  |       |  



|(1) | In 2006, the Company revised its allowance methodology to provide for more specific allocation of its reserves. The revised methodology did not have a material impact
on the Companys determination of the overall allowance for credit losses.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The Company believes that the
allowance for credit losses at December 31, 2009 is adequate to cover estimated losses in the loan portfolio as of such date. There can be no assurance, however, that the Company will not sustain losses in future periods, which could be
substantial in relation to the size of the allowance at December 31, 2009.

Securities

The Company uses its securities portfolio as a source of income, as a source of liquidity for cash requirements and to manage interest rate
risk. At December 31, 2009, the carrying amount of investment securities totaled $4.118 billion, a decrease of $42.1 million or 1.0% compared with $4.160 billion at December 31, 2008. Securities increased to $4.160 billion at
December 31, 2008 from $1.858 billion at December 31, 2007, an increase of $2.30 billion or 124.0%. The increase in securities was primarily due to the purchase of new securities with the funds acquired in the Franklin Bank acquisition. At
December 31, 2009, securities represented 46.5% of total assets compared with 45.9% of total assets at December 31, 2008.



48



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##### Table of Contents

##### Index to Financial Statements

At the date of purchase, the Company is required to classify debt and equity securities into
one of three categories: held-to-maturity, trading or available-for-sale. At each reporting date, the appropriateness of the classification is reassessed. Investments in debt securities are classified as held-to-maturity and measured at amortized
cost in the financial statements only if management has the positive intent and ability to hold those securities to maturity. Securities that are bought and held principally for the purpose of selling them in the near term are classified as trading
and measured at fair value in the financial statements with unrealized gains and losses included in earnings. Investments not classified as either held-to-maturity or trading are classified as available-for-sale and measured at fair value in the
financial statements with unrealized gains and losses reported, net of tax, in a separate component of shareholders equity until realized.

The following table summarizes the amortized cost of securities as of the dates shown (available-for-sale securities are not adjusted for unrealized gains or losses):



|                                                                                  |  |                        |           |      |   |           |  |      |           |      |   |           |  |   |          
|--------------------------------------------------------------------------------- |  | ---------------------- | --------- | ---- | - | --------- |  | ---- | --------- | ---- | - | --------- |  | - | ---------
|                                                                                  |  | December 31,          
|                                                                                  |  | 2009                   |           | 2008 |   | 2007      |  | 2006 |           | 2005
|                                                                                  |  | (Dollars in thousands)
|U.S. Treasury securities and obligations of U.S. government agencies              |  | $                      | 41,715    |      | $ | 151,147   |  | $    | 229,119   |      | $ | 402,328   |  | $ | 296,349  
|70% non-taxable preferred stock                                                   |  |                        |          |      |   |          |  |      | 14,025    |      |   | 24,000    |  |   | 24,000   
|States and political subdivisions                                                 |  |                        | 82,174    |      |   | 84,569    |  |      | 87,517    |      |   | 44,378    |  |   | 31,250   
|Corporate debt securities                                                         |  |                        | 3,227     |      |   | 3,221     |  |      | 3,215     |      |   | 6,218     |  |   | 8,550    
|Collateralized mortgage obligations                                               |  |                        | 296,923   |      |   | 179,389   |  |      | 223,952   |      |   | 276,629   |  |   | 222,615  
|Mortgage-backed securities                                                        |  |                        | 3,640,208 |      |   | 3,711,629 |  |      | 1,282,338 |      |   | 829,195   |  |   | 987,088  
|Qualified Zone Academy Bond (QZAB) and Qualified School Construction Bonds (QSCB) |  |                        | 20,900    |      |   | 8,000     |  |      | 8,000     |      |   | 8,000     |  |   | 8,000    
|Other                                                                             |  |                        | 7,288     |      |   | 7,288     |  |      | 7,260     |      |   | 4,093     |  |   | 814      
|                                                                                  |  |                        |           |      |   |           |  |      |           |      |   |           |  |   |          
|Total                                                                             |  | $                      | 4,092,435 |      | $ | 4,145,243 |  | $    | 1,855,426 |      | $ | 1,594,841 |  | $ | 1,578,666
|                                                                                  |  |                        |           |      |   |           |  |      |           |      |   |           |  |   |          



49



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##### Table of Contents

##### Index to Financial Statements

The following table summarizes the contractual maturity of securities and their weighted
average yields as of December 31, 2009. The contractual maturity of a mortgage-backed security is the date at which the last underlying mortgage matures. Available-for-sale securities are shown at fair value and held-to-maturity securities are
shown at amortized cost. Other securities are included in the corporate debt securities category. For purposes of the table below, tax-exempt states and political subdivisions are calculated on a tax equivalent basis. The QZAB and QSCB bonds are not
calculated on a tax equivalent basis and the bonds generate tax credits as follows: QZAB at 7.18% and the QSCBs at 6.11% and 5.95%. The tax credits are shown as a reduction to federal income tax expense.



|                                                                                  |  |                        |        |       |                                    |   |        |                                     |         |  |                |        |  |       |           |  |        |   |       |   |           |       |      |       |  |   |           |  |      |  
|--------------------------------------------------------------------------------- |  | ---------------------- | ------ | ----- | ---------------------------------- | - | ------ | ----------------------------------- | ------- |  | -------------- | ------ |  | ----- | --------- |  | ------ | - | ----- | - | --------- | ----- | ---- | ----- |  | - | --------- |  | ---- | -
|                                                                                  |  | December 31, 2009      |       
|                                                                                  |  | Within OneYear         |        |       | After One YearbutWithin Five Years |   |        | After Five YearsbutWithin Ten Years |         |  | After TenYears |        |  | Total |          
|                                                                                  |  | Amount                 |        | Yield |                                    |   | Amount |                                     | Yield   |  |                | Amount |  | Yield |           |  | Amount |   | Yield |   |           | Total |      | Yield | 
|                                                                                  |  | (Dollars in thousands) |       
|U.S. Treasury securities and obligations of U.S. government agencies              |  | $                      | 19,999 |       | 4.79                               | % |        | $                                   | 10,951  |  | 5.12           | %      |  | $     | 10,791    |  | 5.63   | % |       | $ |          |       |     |       |  | $ | 41,741    |  | 5.09 | %
|States and political subdivisions.                                                |  |                        | 1,816  |       | 6.14                               |   |        |                                     | 7,533   |  | 6.88           |        |  |       | 28,863    |  | 6.32   |   |       |   | 45,005    |       | 6.42 |       |  |   | 83,217    |  | 6.42 |  
|Corporate debt securities and other                                               |  |                        | 7,288  |       | 4.25                               |   |        |                                     | 3,263   |  | 7.66           |        |  |       |          |  |       |   |       |   |          |       |     |       |  |   | 10,551    |  | 5.46 |  
|Collateralized mortgage obligations.                                              |  |                        |       |       |                                   |   |        |                                     | 21,719  |  | 4.88           |        |  |       | 134,787   |  | 3.59   |   |       |   | 140,386   |       | 3.43 |       |  |   | 296,892   |  | 3.61 |  
|Mortgage-backed securities                                                        |  |                        | 21,354 |       | 3.60                               |   |        |                                     | 151,502 |  | 4.20           |        |  |       | 1,389,718 |  | 4.56   |   |       |   | 2,101,833 |       | 4.60 |       |  |   | 3,664,407 |  | 4.56 |  
|Qualified Zone Academy Bond (QZAB) and Qualified School Construction Bonds (QSCB) |  |                        |       |       |                                   |   |        |                                     | 8,582   |  | 2.00           |        |  |       |          |  |       |   |       |   | 12,900    |       | 1.58 |       |  |   | 21,482    |  | 1.74 |  
|                                                                                  |  |                        |        |       |                                    |   |        |                                     |         |  |                |        |  |       |           |  |        |   |       |   |           |       |      |       |  |   |           |  |      |  
|Total                                                                             |  | $                      | 50,457 |       | 4.26                               | % |        | $                                   | 203,550 |  | 4.49           | %      |  | $     | 1,564,159 |  | 4.52   | % |       | $ | 2,300,124 |       | 4.54 | %     |  | $ | 4,118,290 |  | 4.52 | %
|                                                                                  |  |                        |        |       |                                    |   |        |                                     |         |  |                |        |  |       |           |  |        |   |       |   |           |       |      |       |  |   |           |  |      |  

The contractual maturity of mortgage-backed securities and collateralized mortgage obligations is not a
reliable indicator of their expected life because borrowers have the right to prepay their obligations at any time. Mortgage-backed securities monthly pay downs cause the average lives of the securities to be much different than their stated lives.
The weighted average life of the Companys complete portfolio is 3.1 years with an effective duration of 2.8 years at December 31, 2009.

At December 31, 2009 and 2008, the Company did not own securities of any one issuer (other than the U.S. government and its agencies) for which aggregate adjusted cost exceeded 10% of the
consolidated shareholders equity at such respective dates.

The average yield of the securities portfolio was 4.69% in
2009 compared with 4.90% in 2008 and 4.84% in 2007. The 21 basis point decrease in 2009 was primarily due to the Company reinvesting funds at lower rates in 2009 compared to 2008. The overall growth in the average securities portfolio over the
comparable periods was primarily funded by deposit growth and securities acquired in acquisitions.

The following table
summarizes the carrying value by classification of securities as of the dates shown:



|                   |  |                        |           |      |   |           |  |      |           |      |   |           |  |   |          
|------------------ |  | ---------------------- | --------- | ---- | - | --------- |  | ---- | --------- | ---- | - | --------- |  | - | ---------
|                   |  | December 31,          
|                   |  | 2009                   |           | 2008 |   | 2007      |  | 2006 |           | 2005
|                   |  | (Dollars in thousands)
|Available-for-sale |  | $                      | 599,503   |      | $ | 817,244   |  | $    | 260,444   |      | $ | 434,331   |  | $ | 410,361  
|Held-to-maturity   |  |                        | 3,518,787 |      |   | 3,343,157 |  |      | 1,597,162 |      |   | 1,155,972 |  |   | 1,162,241
|                   |  |                        |           |      |   |           |  |      |           |      |   |           |  |   |          
|Total              |  | $                      | 4,118,290 |      | $ | 4,160,401 |  | $    | 1,857,606 |      | $ | 1,590,303 |  | $ | 1,572,602
|                   |  |                        |           |      |   |           |  |      |           |      |   |           |  |   |          



50



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##### Table of Contents

##### Index to Financial Statements

The following tables present the amortized cost and fair value of securities classified as
available-for-sale at December 31, 2009, 2008 and 2007:



|                                                                     |  |                        |         |                        |   |                       |  |   |           |   |               |   |                      |  |                       |         |  |           |        |  |   |        |   |  |   |        
|-------------------------------------------------------------------- |  | ---------------------- | ------- | ---------------------- | - | --------------------- |  | - | --------- | - | ------------- | - | -------------------- |  | --------------------- | ------- |  | --------- | ------ |  | - | ------ | - |  | - | -------
|                                                                     |  | December 31, 2009      |         | December 31, 2008     
|                                                                     |  | AmortizedCost          |         | GrossUnrealizedGains   |   | GrossUnrealizedLosses |  |   | FairValue |   | AmortizedCost |   | GrossUnrealizedGains |  | GrossUnrealizedLosses |         |  | FairValue
|                                                                     |  | (Dollars in thousands) |         | (Dollars in thousands)
|U.S. Treasury securities and obligations of U.S. government agencies |  | $                      | 1,014   |                        | $ | 26                    |  | $ |          |   |               | $ | 1,040                |  | $                     | 91,103  |  | $         | 28     |  | $ |       |   |  | $ | 91,131 
|States and political subdivisions                                    |  |                        | 49,280  |                        |   | 1,398                 |  |   | (356      | ) |               |   | 50,322               |  |                       | 50,008  |  |           | 763    |  |   | (1,846 | ) |  |   | 48,925 
|Collateralized mortgage obligations                                  |  |                        | 1,169   |                        |   |                      |  |   | (31       | ) |               |   | 1,138                |  |                       | 1,437   |  |           |       |  |   | (58    | ) |  |   | 1,379  
|Mortgage-backed securities                                           |  |                        | 505,170 |                        |   | 24,306                |  |   | (106      | ) |               |   | 529,370              |  |                       | 642,529 |  |           | 16,914 |  |   | (744   | ) |  |   | 658,699
|Qualified Zone Academy Bond (QZAB)                                   |  |                        | 8,000   |                        |   | 582                   |  |   |          |   |               |   | 8,582                |  |                       | 8,000   |  |           |       |  |   |       |   |  |   | 8,000  
|Other                                                                |  |                        | 9,015   |                        |   | 36                    |  |   |          |   |               |   | 9,051                |  |                       | 9,009   |  |           | 101    |  |   |       |   |  |   | 9,110  
|                                                                     |  |                        |         |                        |   |                       |  |   |           |   |               |   |                      |  |                       |         |  |           |        |  |   |        |   |  |   |        
|Total                                                                |  | $                      | 573,648 |                        | $ | 26,348                |  | $ | (493      | ) |               | $ | 599,503              |  | $                     | 802,086 |  | $         | 17,806 |  | $ | (2,648 | ) |  | $ | 817,244
|                                                                     |  |                        |         |                        |   |                       |  |   |           |   |               |   |                      |  |                       |         |  |           |        |  |   |        |   |  |   |        



|                                                                     |  |                        |         |                      |   |                       |  |   |           |   |  |   |        
|-------------------------------------------------------------------- |  | ---------------------- | ------- | -------------------- | - | --------------------- |  | - | --------- | - |  | - | -------
|                                                                     |  | December 31, 2007     
|                                                                     |  | AmortizedCost          |         | GrossUnrealizedGains |   | GrossUnrealizedLosses |  |   | FairValue
|                                                                     |  | (Dollars in thousands)
|U.S. Treasury securities and obligations of U.S. government agencies |  | $                      | 3,986   |                      | $ | 15                    |  | $ | (2        | ) |  | $ | 3,999  
|70% non-taxable preferred stock                                      |  |                        | 14,025  |                      |   |                      |  |   |          |   |  |   | 14,025 
|States and political subdivisions                                    |  |                        | 51,119  |                      |   | 962                   |  |   | (148      | ) |  |   | 51,933 
|Collateralized mortgage obligations                                  |  |                        | 1,890   |                      |   |                      |  |   | (38       | ) |  |   | 1,852  
|Mortgage-backed securities                                           |  |                        | 170,269 |                      |   | 1,614                 |  |   | (276      | ) |  |   | 171,607
|Qualified Zone Academy Bond (QZAB)                                   |  |                        | 8,000   |                      |   |                      |  |   |          |   |  |   | 8,000  
|Other                                                                |  |                        | 8,975   |                      |   | 53                    |  |   |          |   |  |   | 9,028  
|                                                                     |  |                        |         |                      |   |                       |  |   |           |   |  |   |        
|Total                                                                |  | $                      | 258,264 |                      | $ | 2,644                 |  | $ | (464      | ) |  | $ | 260,444
|                                                                     |  |                        |         |                      |   |                       |  |   |           |   |  |   |        



51



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##### Index to Financial Statements

The following tables present the amortized cost and fair value of securities classified as
held-to-maturity at December 31, 2009, 2008 and 2007:



|                                                                      |  |                        |           |                        |   |                       |  |   |           |   |               |   |                      |  |                       |           |  |           |        |  |   |        |   |  |   |          
|--------------------------------------------------------------------- |  | ---------------------- | --------- | ---------------------- | - | --------------------- |  | - | --------- | - | ------------- | - | -------------------- |  | --------------------- | --------- |  | --------- | ------ |  | - | ------ | - |  | - | ---------
|                                                                      |  | December 31, 2009      |           | December 31, 2008     
|                                                                      |  | AmortizedCost          |           | GrossUnrealizedGains   |   | GrossUnrealizedLosses |  |   | FairValue |   | AmortizedCost |   | GrossUnrealizedGains |  | GrossUnrealizedLosses |           |  | FairValue
|                                                                      |  | (Dollars in thousands) |           | (Dollars in thousands)
|U.S. Treasury securities and obligations of U.S. government agencies. |  | $                      | 40,701    |                        | $ | 1,621                 |  | $ |          |   |               | $ | 42,322               |  | $                     | 60,044    |  | $         | 2,328  |  | $ |       |   |  | $ | 62,372   
|States and political subdivisions                                     |  |                        | 32,895    |                        |   | 809                   |  |   | (1,050    | ) |               |   | 32,654               |  |                       | 34,561    |  |           | 201    |  |   | (3,152 | ) |  |   | 31,610   
|Corporate debt securities                                             |  |                        | 1,500     |                        |   | 10                    |  |   |          |   |               |   | 1,510                |  |                       | 1,500     |  |           | 63     |  |   |       |   |  |   | 1,563    
|Collateralized mortgage obligations                                   |  |                        | 295,754   |                        |   | 3,652                 |  |   | (1,156    | ) |               |   | 298,250              |  |                       | 177,952   |  |           | 2,222  |  |   | (1,012 | ) |  |   | 179,162  
|Mortgage-backed securities                                            |  |                        | 3,135,037 |                        |   | 111,045               |  |   | (22       | ) |               |   | 3,246,060            |  |                       | 3,069,100 |  |           | 65,236 |  |   | (62    | ) |  |   | 3,134,274
|Qualified School Construction Bonds (QSCB)                            |  |                        | 12,900    |                        |   | 57                    |  |   |          |   |               |   | 12,957               |  |                       |           |  |           |        |  |   |        |   |  |   |          
|                                                                      |  |                        |           |                        |   |                       |  |   |           |   |               |   |                      |  |                       |           |  |           |        |  |   |        |   |  |   |          
|Total                                                                 |  | $                      | 3,518,787 |                        | $ | 117,194               |  | $ | (2,228    | ) |               | $ | 3,633,753            |  | $                     | 3,343,157 |  | $         | 70,050 |  | $ | (4,226 | ) |  | $ | 3,408,981
|                                                                      |  |                        |           |                        |   |                       |  |   |           |   |               |   |                      |  |                       |           |  |           |        |  |   |        |   |  |   |          



|                                                                     |  |                        |           |                      |   |                       |  |   |           |   |  |   |          
|-------------------------------------------------------------------- |  | ---------------------- | --------- | -------------------- | - | --------------------- |  | - | --------- | - |  | - | ---------
|                                                                     |  | December 31, 2007     
|                                                                     |  | AmortizedCost          |           | GrossUnrealizedGains |   | GrossUnrealizedLosses |  |   | FairValue
|                                                                     |  | (Dollars in thousands)
|U.S. Treasury securities and obligations of U.S. government agencies |  | $                      | 225,133   |                      | $ | 1,572                 |  | $ | (28       | ) |  | $ | 226,677  
|States and political subdivisions                                    |  |                        | 36,398    |                      |   | 286                   |  |   | (304      | ) |  |   | 36,380   
|Corporate debt securities                                            |  |                        | 1,500     |                      |   | 14                    |  |   |          |   |  |   | 1,514    
|Collateralized mortgage obligations                                  |  |                        | 222,062   |                      |   | 744                   |  |   | (1,914    | ) |  |   | 220,892  
|Mortgage-backed securities                                           |  |                        | 1,112,069 |                      |   | 6,603                 |  |   | (6,537    | ) |  |   | 1,112,135
|                                                                     |  |                        |           |                      |   |                       |  |   |           |   |  |   |          
|Total                                                                |  | $                      | 1,597,162 |                      | $ | 9,219                 |  | $ | (8,783    | ) |  | $ | 1,597,598
|                                                                     |  |                        |           |                      |   |                       |  |   |           |   |  |   |          

Management evaluates securities for
other-than-temporary impairment (OTTI) at least on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. The investment securities portfolio is evaluated for OTTI by segregating the
portfolio into two general segments and applying the appropriate OTTI model. Investment securities classified as available for sale or held-to-maturity are generally evaluated for OTTI under FASB ASC Topic 320, InvestmentsDebt and Equity
Securities. Certain purchased beneficial interests, including non-agency mortgage-backed securities, asset-backed securities, and collateralized debt obligations, that had credit ratings at the time of purchase of below AA are evaluated using
the model outlined in ASC Topic 325, Investments-Other. The Company currently does not own any securities that are accounted for under ASC Topic 325.

In determining OTTI under ASC Topic 320, management considers many factors, including: (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial
condition and near-term prospects of the issuer, (iii) whether the market decline was affected by macroeconomic conditions, and (iv) whether the entity has the intent to sell the debt security or more likely than not will be required to
sell the



52



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##### Table of Contents

##### Index to Financial Statements

debt security before its anticipated recovery. The assessment of whether an other-than-temporary decline exists involves a high degree of subjectivity and judgment and is based on the information
available to management at a point in time. If applicable, the second segment of the portfolio uses the OTTI guidance provided by ASC Topic 325 that is specific to purchased beneficial interests that, on the purchase date, were rated below AA. Under
the ASC Topic 325 model, the Company compares the present value of the remaining cash flows as estimated at the preceding evaluation date to the current expected remaining cash flows. An OTTI is deemed to have occurred if there has been an adverse
change in the remaining expected future cash flows.

When OTTI occurs under either model, the amount of the
other-than-temporary-impairment recognized in earnings depends on whether an entity intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis less any current-period credit
loss. If an entity intends to sell or more likely than not will be required to sell the security before recovery of its amortized cost basis less any current-period credit loss, the OTTI shall be recognized in earnings equal to the entire difference
between the investments amortized cost basis and its fair value at the balance sheet date. If an entity does not intend to sell the security and it is not more likely than not that the entity will be required to sell the security before
recovery of its amortized cost basis less any current-period loss, the OTTI shall be separated into the amount representing the credit loss and the amount related to all other factors. The amount of the total OTTI related to the credit loss is
determined based on the present value of cash flows expected to be collected and is recognized in earnings. The amount of the total OTTI related to other factors shall be recognized in other comprehensive income, net of applicable taxes. The
previous amortized cost basis less the OTTI recognized in earnings shall become the new amortized cost basis of the investment.

Management does not intend to sell any debt securities or more likely than not will not be required to sell any debt securities before their anticipated recovery, at which time the Company will receive full value for the securities.
Furthermore, management has the intent to hold the securities classified as available for sale that were in a loss position as of December 31, 2009 for a period of time sufficient for an entire recovery of the cost basis of the securities.
The unrealized losses are largely due to increases in market interest rates over the yields available at the time the underlying securities were purchased. The fair value is expected to recover as the securities approach their maturity date or
repricing date or if market yields for such investments decline. Management does not believe any of the securities are impaired due to reasons of credit quality. Accordingly, as of December 31, 2009, management believes any impairment in the
Companys securities are temporary and no impairment loss has been realized in the Companys consolidated income statement.

During 2008, as part of its regular quarterly review for impairment of marketable securities, the Company recognized an other-than-temporary impairment charge on Fannie Mae and Freddie Mac government sponsored, investment grade perpetual
callable preferred securities of $14.0 million pre-tax during the year ended December 31, 2008 and $10.0 million pre-tax during the year ended December 31, 2007. The Company recorded no other-than-temporary impairment charges in 2009. The
other-than-temporary impairment charges were recorded on perpetual preferred stock issues classified as available-for-sale investment securities, which are included in the tables above as 70% non-taxable preferred stock, with a total book value of
$24.0 million prior to recognition of the initial 2007 impairment charge and no book value after the 2008 impairment charge. The Company reclassified the unrealized mark-to-market loss on these investment grade securities to an other-than-temporary
impairment charge because of the recent significant decline in the market value of these securities and because management believes it is unlikely that these securities will recover their original book value within a reasonable amount of time. Both
Fannie Mae and Freddie Mac securities were investment grade at the time of purchase.

Mortgage-backed securities are
securities that have been developed by pooling a number of real estate mortgages and which are principally issued by federal agencies such as Government National Mortgage Association (Ginnie Mae), Fannie Mae and Freddie Mac. These securities are
deemed to have high credit ratings, and minimum regular monthly cash flows of principal and interest are guaranteed by the issuing agencies.



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##### Index to Financial Statements

Unlike U.S. Treasury and U.S. government agency securities, which have a lump sum payment at
maturity, mortgage-backed securities provide cash flows from regular principal and interest payments and principal prepayments throughout the lives of the securities. Mortgage-backed securities which are purchased at a premium will generally suffer
decreasing net yields as interest rates drop because home owners tend to refinance their mortgages. Thus, the premium paid must be amortized over a shorter period. Therefore, these securities purchased at a discount will obtain higher net yields in
a decreasing interest rate environment. As interest rates rise, the opposite will generally be true. During a period of increasing interest rates, fixed rate mortgage-backed securities do not tend to experience heavy prepayments of principal and
consequently, the average life of this security will be lengthened. If interest rates begin to fall, prepayments will increase, thereby shortening the estimated life of this security. At December 31, 2009, 57.4% of the mortgage-backed
securities held by the Company had contractual final maturities of more than ten years with a weighted average life of 2.9 years.

Collateralized mortgage obligations (CMOs) are bonds that are backed by pools of mortgages. The pools can be Ginnie Mae, Fannie Mae or Freddie Mac pools or they can be private-label pools. CMOs are designed so that the mortgage
collateral will generate a cash flow sufficient to provide for the timely repayment of the bonds. The mortgage collateral pool can be structured to accommodate various desired bond repayment schedules, provided that the collateral cash flow is
adequate to meet scheduled bond payments. This is accomplished by dividing the bonds into classes to which payments on the underlying mortgage pools are allocated in different order. The bonds cash flow, for example, can be dedicated to one
class of bondholders at a time, thereby increasing call protection to bondholders. In private-label CMOs, losses on underlying mortgages are directed to the most junior of all classes and then to the classes above in order of increasing seniority,
which means that the senior classes have enough credit protection to be given the highest credit rating by the rating agencies.

Deposits

The Companys lending and investing activities are primarily funded by deposits. The Company offers a variety of
deposit accounts having a wide range of interest rates and terms including demand, savings, money market and time accounts. The Company relies primarily on competitive pricing policies and customer service to attract and retain these deposits. The
Company does not have or accept any brokered deposits.

Total deposits at December 31, 2009 were
$7.26 billion, a decrease of $44.7 million or 0.6% compared with $7.30 billion at December 31, 2008. Total deposits at December 31, 2008 were $7.30 billion, an increase of $2.34 billion or 47.1% compared with $4.97 billion at
December 31, 2007. The increase was primarily attributable to the Franklin Bank and 1stChoice acquisitions and the acquisition of six (6) branches of Banco Popular in 2008. Noninterest-bearing deposits at December 31, 2009 were $1.49 billion compared with $1.52 billion at
December 31, 2008. Noninterest-bearing deposits were $1.52 billion at December 31, 2008, an increase of $354.9 million or 30.4% compared with $1.17 billion at December 31, 2007. Interest-bearing deposits at December 31, 2009 of
$5.77 billion represented a $14.4 million decrease compared with $5.78 billion at December 31, 2008. Interest-bearing deposits at December 31, 2008 were $5.78 billion, up $1.98 billion or 52.2% compared with $3.80 billion at
December 31, 2007. Total deposits at December 31, 2007 were $4.97 billion. There were no major concentrations of deposits at December 31, 2009, 2008 or 2007.



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##### Index to Financial Statements

The daily average balances and weighted average rates paid on deposits for each of the years
ended December 31, 2009, 2008 and 2007 are presented below:



|                                |  |                          |           |             |      |   |                |      |             |  |      |                |  |             |           |  |      |  
|------------------------------- |  | ------------------------ | --------- | ----------- | ---- | - | -------------- | ---- | ----------- |  | ---- | -------------- |  | ----------- | --------- |  | ---- | -
|                                |  | Years Ended December 31, |          
|                                |  | 2009                     |           |             | 2008 |   |                | 2007 |            
|                                |  | AverageBalance           |           | AverageRate |      |   | AverageBalance |      | AverageRate |  |      | AverageBalance |  | AverageRate |          
|                                |  | (Dollars in thousands)   |          
|Interest-bearing checking       |  | $                        | 1,082,332 |             | 0.79 | % |                | $    | 791,739     |  | 1.01 | %              |  | $           | 829,757   |  | 1.97 | %
|Regular savings                 |  |                          | 320,530   |             | 0.56 |   |                |      | 253,090     |  | 0.74 |                |  |             | 222,397   |  | 0.99 |  
|Money market savings            |  |                          | 1,590,191 |             | 1.11 |   |                |      | 1,158,052   |  | 2.24 |                |  |             | 983,187   |  | 3.34 |  
|Time deposits                   |  |                          | 2,730,263 |             | 2.48 |   |                |      | 1,997,152   |  | 3.60 |                |  |             | 1,549,064 |  | 4.60 |  
|                                |  |                          |           |             |      |   |                |      |             |  |      |                |  |             |           |  |      |  
|Total interest-bearing deposits |  |                          | 5,723,316 |             | 1.67 |   |                |      | 4,200,033   |  | 2.56 |                |  |             | 3,584,405 |  | 3.42 |  
|Noninterest-bearing deposits    |  |                          | 1,488,699 |             |     |   |                |      | 1,271,408   |  |     |                |  |             | 1,143,114 |  |     |  
|                                |  |                          |           |             |      |   |                |      |             |  |      |                |  |             |           |  |      |  
|Total deposits                  |  | $                        | 7,212,015 |             | 1.33 | % |                | $    | 5,471,441   |  | 1.97 | %              |  | $           | 4,727,519 |  | 2.60 | %
|                                |  |                          |           |             |      |   |                |      |             |  |      |                |  |             |           |  |      |  

The Companys ratio of average noninterest-bearing deposits to average total deposits for the years
ended December 31, 2009, 2008, and 2007 was 20.6%, 23.2%, and 24.2%, respectively.

The following table sets forth the
amount of the Companys certificates of deposit that are $100,000 or greater by time remaining until maturity:



|                               |  |                        |          
|------------------------------ |  | ---------------------- | ---------
|                               |  | December 31, 2009     
|                               |  | (Dollars in thousands)
|Three months or less           |  | $                      | 333,576  
|Over three through six months. |  |                        | 359,691  
|Over six through 12 months     |  |                        | 416,647  
|Over 12 months                 |  |                        | 112,251  
|                               |  |                        |          
|Total                          |  | $                      | 1,222,165
|                               |  |                        |          

Other Borrowings

The Company utilizes borrowings to supplement deposits to fund its lending and investment activities. Borrowings consist of funds from the
Federal Home Loan Bank (FHLB) and correspondent banks. FHLB advances are considered short-term, overnight borrowings. At December 31, 2009, the Company had $26.1 million in FHLB borrowings, all of which consisted of long-term
FHLB notes payable compared with $229.4 million in FHLB borrowings at December 31, 2008, of which $29.4 million consisted of long-term FHLB notes payable and $200.0 million consisted of short-term advances. FHLB advances are available to the
Company under a security and pledge agreement. At December 31, 2009, the Company had total funds of $2.73 billion available under this agreement of which $26.1 million was outstanding. The weighted average interest rate paid on the FHLB notes
payable at December 31, 2009 was 5.5%. The maturity dates on the FHLB notes payable range from the years 2010 to 2028 and have interest rates ranging from 3.08% to 6.10%. The highest outstanding balance of FHLB advances during 2009 was $231.0
million compared with $280.0 million during 2008. The average rate paid on FHLB advances for the year ended December 31, 2009 was 0.36%.

At December 31, 2009, the Company had $72.6 million in overnight securities sold under repurchase agreements compared with $96.0 million at December 31, 2008, a decrease of $23.4 million or
24.4% with average rates paid of 1.25% and 2.83%, respectively.



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##### Index to Financial Statements

The following table presents the Companys borrowings at December 31, 2009 and
2008:



|                                            |  |                        |        |                  |   |        
|------------------------------------------- |  | ---------------------- | ------ | ---------------- | - | -------
|                                            |  | December 31,2009       |        | December 31,2008
|                                            |  | (Dollars in thousands)
|FHLB advances                               |  | $                      |       |                  | $ | 200,000
|FHLB long-term notes payable                |  |                        | 26,140 |                  |   | 29,395 
|                                            |  |                        |        |                  |   |        
|Total other borrowings                      |  |                        | 26,140 |                  |   | 229,395
|Securities sold under repurchase agreements |  |                        | 72,596 |                  |   | 96,017 
|                                            |  |                        |        |                  |   |        
|Total                                       |  | $                      | 98,736 |                  | $ | 325,412
|                                            |  |                        |        |                  |   |        

At December 31, 2009 and 2008, the Company had
outstanding $92.3 million in junior subordinated debentures issued to the Companys unconsolidated subsidiary trusts.

A
summary of pertinent information related to the Companys eight issues of junior subordinated debentures outstanding at December 31, 2009 is set forth in the table below:



|                               |  |                |  |                                     |            |                  |                                           |                                      |   |                 |  |               
|------------------------------ |  | -------------- |  | ----------------------------------- | ---------- | ---------------- | ----------------------------------------- | ------------------------------------ | - | --------------- |  | --------------
|Description                    |  | Issuance Date  |  | TrustPreferredSecuritiesOutstanding |            | Interest Rate(1) |                                           | JuniorSubordinatedDebt Owedto Trusts |   | MaturityDate(2)
|Prosperity Statutory Trust II  |  | July 31, 2001  |  | $                                   | 15,000,000 |                  | 3 month LIBOR+ 3.58%, not
toexceed 12.50% |                                      | $ | 15,464,000      |  | July 31, 2031 
|                               |  |                |  |                                     |           
|Prosperity Statutory Trust III |  | Aug. 15, 2003  |  |                                     | 12,500,000 |                  | 3 month LIBOR+ 3.00%(3)                   |                                      |   | 12,887,000      |  | Sept. 17, 2033
|                               |  |                |  |                                     |           
|Prosperity Statutory Trust IV  |  | Dec. 30, 2003  |  |                                     | 12,500,000 |                  | 3 month LIBOR+ 2.85%(4)                   |                                      |   | 12,887,000      |  | Dec. 30, 2033 
|                               |  |                |  |                                     |           
|SNB Capital Trust IV(5)        |  | Sept. 25, 2003 |  |                                     | 10,000,000 |                  | 3 month LIBOR+ 3.00%                      |                                      |   | 10,310,000      |  | Sept. 25, 2033
|                               |  |                |  |                                     |           
|TXUI Statutory Trust I(6)      |  | Sept. 07, 2000 |  |                                     | 7,000,000  |                  | 10.60%                                    |                                      |   | 7,210,000       |  | Sept. 07, 2030
|                               |  |                |  |                                     |           
|TXUI Statutory Trust II(6)     |  | Dec. 19, 2003  |  |                                     | 5,000,000  |                  | 3 month LIBOR+ 2.85%(7)                   |                                      |   | 5,155,000       |  | Dec. 19, 2033 
|                               |  |                |  |                                     |           
|TXUI Statutory Trust III(6)    |  | Nov. 30, 2005  |  |                                     | 15,500,000 |                  | 3 month LIBOR+ 1.39%                      |                                      |   | 15,980,000      |  | Dec. 15, 2035 
|                               |  |                |  |                                     |           
|TXUI Statutory Trust IV(6)     |  | Mar. 31, 2006  |  |                                     | 12,000,000 |                  | 3 month LIBOR+ 1.39%                      |                                      |   | 12,372,000      |  | June 30, 2036 
|                               |  |                |  |                                     |            |                  |                                           |                                      |   |                 |  |               
|                               |  |                |  |                                     |            |                  |                                           |                                      | $ | 92,265,000      |  |               
|                               |  |                |  |                                     |            |                  |                                           |                                      |   |                 |  |               



|(1) | The 3-month LIBOR in effect as of December 31, 2009 was 0.25063%.
|--- | -----------------------------------------------------------------

|(2) | All debentures are callable five years from issuance date except for TXUI Statutory Trust I which is callable ten years from issuance date.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------

|(3) | The debentures bore a fixed interest rate of 6.50% until September 17, 2008, when the rate began to float on a quarterly basis based on the 3-month LIBOR plus
3.00%.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | The debentures bore a fixed interest rate of 6.50% until December 30, 2008, when the rate began to float on a quarterly basis based on the 3-month LIBOR plus
2.85%.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(5) | Assumed in connection with the SNB acquisition on April 1, 2006.
|--- | ----------------------------------------------------------------

|(6) | Assumed in connection with the TXUI acquisition on January 31, 2007.
|--- | --------------------------------------------------------------------

|(7) | The debentures bore a fixed interest rate until January 23, 2009, when the rate began to float on a quarterly basis based on the 3-month LIBOR plus 2.85%.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Index to Financial Statements

Each of the trusts is a capital or statutory business trust organized for the sole purpose
of issuing trust securities and investing the proceeds in the Companys junior subordinated debentures. The preferred trust securities of each trust represent preferred beneficial interests in the assets of the respective trusts and are subject
to mandatory redemption upon payment of the junior subordinated debentures held by the trust. The common securities of each trust are wholly owned by the Company. Each trusts ability to pay amounts due on the trust preferred securities is
solely dependent upon the Company making payment on the related junior subordinated debentures. The debentures, which are the only assets of each trust, are subordinate and junior in right of payment to all of the Companys present and future
senior indebtedness. The Company has fully and unconditionally guaranteed each trusts obligations under the trust securities issued by such trust to the extent not paid or made by each trust, provided such trust has funds available for such
obligations.

Under the provisions of each issue of the debentures, the Company has the right to defer payment of interest on
the debentures at any time, or from time to time, for periods not exceeding five years. If interest payments on either issue of the debentures are deferred, the distributions on the applicable trust preferred securities and common securities will
also be deferred.

Interest Rate Sensitivity and Market Risk

The Companys asset liability and funds management policy provides management with the guidelines for effective funds management, and
the Company has established a measurement system for monitoring its net interest rate sensitivity position. The Company manages its sensitivity position within established guidelines.

As a financial institution, the Companys primary component of market risk is interest rate volatility. Fluctuations in interest rates
will ultimately impact both the level of income and expense recorded on most of the Companys assets and liabilities, and the market value of all interest-earning assets and interest-bearing liabilities, other than those which have a short term
to maturity. Interest rate risk is the potential of economic losses due to future interest rate changes. These economic losses can be reflected as a loss of future net interest income and/or a loss of current fair market values. The objective is to
measure the effect on net interest income and to adjust the balance sheet to minimize the inherent risk while at the same time maximizing income.

The Company manages its exposure to interest rates by structuring its balance sheet in the ordinary course of business. The Company does not enter into instruments such as leveraged derivatives, interest
rate swaps, financial options, financial future contracts or forward delivery contracts for the purpose of reducing interest rate risk. Based upon the nature of the Companys operations, the Company is not subject to foreign exchange or
commodity price risk. The Company does not own any trading assets.

The Companys exposure to interest rate risk is
managed by the Asset Liability Committee (ALCO), which is composed of senior officers of the Company, in accordance with policies approved by the Companys Board of Directors. The ALCO formulates strategies based on appropriate
levels of interest rate risk. In determining the appropriate level of interest rate risk, the ALCO considers the impact on earnings and capital of the current outlook on interest rates, potential changes in interest rates, regional economies,
liquidity, business strategies and other factors. The ALCO meets regularly to review, among other things, the sensitivity of assets and liabilities to interest rate changes, the book and market values of assets and liabilities, unrealized gains and
losses, purchase and sale activities, commitments to originate loans and the maturities of investments and borrowings. Additionally, the ALCO reviews liquidity, cash flow flexibility, maturities of deposits and consumer and commercial deposit
activity. Management uses two methodologies to manage interest rate risk: (1) an analysis of relationships between interest-earning assets and interest-bearing liabilities; and (2) an interest rate shock simulation model. The Company has
traditionally managed its business to reduce its overall exposure to changes in interest rates.

An interest rate sensitive
asset or liability is one that, within a defined time period, either matures or experiences an interest rate change in line with general market interest rates. The management of interest rate risk is performed by analyzing the maturity and repricing
relationships between interest-earning assets and interest-



57



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##### Index to Financial Statements

bearing liabilities at specific points in time (GAP) and by analyzing the effects of interest rate changes on net interest income over specific periods of time by projecting the
performance of the mix of assets and liabilities in varied interest rate environments. Interest rate sensitivity reflects the potential effect on net interest income of a movement in interest rates. A company is considered to be asset sensitive, or
having a positive GAP, when the amount of its interest-earning assets maturing or repricing within a given period exceeds the amount of its interest-bearing liabilities also maturing or repricing within that time period. Conversely, a company is
considered to be liability sensitive, or having a negative GAP, when the amount of its interest-bearing liabilities maturing or repricing within a given period exceeds the amount of its interest-earning assets also maturing or repricing within that
time period. During a period of rising interest rates, a negative GAP would tend to affect net interest income adversely, while a positive GAP would tend to result in an increase in net interest income. During a period of falling interest rates, a
negative GAP would tend to result in an increase in net interest income, while a positive GAP would tend to affect net interest income adversely.

The following table sets forth the Companys interest rate sensitivity analysis at December 31, 2009:



|                                                        |  |                                     |            |    |            |   |            |             |  |   |                      |    |  |       |           |   |  |   |          
|------------------------------------------------------- |  | ----------------------------------- | ---------- | -- | ---------- | - | ---------- | ----------- |  | - | -------------------- | -- |  | ----- | --------- | - |  | - | ---------
|                                                        |  | Volumes Subject to Repricing Within
|                                                        |  | 0-30days                            |            |    | 31-180days |   |            | 181-365days |  |   | Greater thanone year |    |  | Total
|                                                        |  | (Dollars in thousands)             
|Interest-earning assets:                                |  |                                     |            |    |            |   |            |             |  |   |                      |    |  |       |           |   |  |   |          
|Securities (excluding unrealized gain of $25.9 million) |  | $                                   | 153,822    |    |            | $ | 549,316    |             |  | $ | 547,533              |    |  | $     | 2,841,764 |   |  | $ | 4,092,435
|Loans                                                   |  |                                     | 749,436    |    |            |   | 265,787    |             |  |   | 286,610              |    |  |       | 2,074,873 |   |  |   | 3,376,706
|Federal funds sold and other temporary investments      |  |                                     | 21,554     |    |            |   |           |             |  |   |                     |    |  |       |          |   |  |   | 21,554   
|                                                        |  |                                     |            |    |            |   |            |             |  |   |                      |    |  |       |           |   |  |   |          
|Total interest-earning assets                           |  | $                                   | 924,812    |    |            | $ | 815,103    |             |  | $ | 834,143              |    |  | $     | 4,916,637 |   |  | $ | 7,490,695
|                                                        |  |                                     |            |    |            |   |            |             |  |   |                      |    |  |       |           |   |  |   |          
|Interest-bearing liabilities:                           |  |                                     |            |    |            |   |            |             |  |   |                      |    |  |       |           |   |  |   |          
|Demand, money market and savings deposits               |  | $                                   | 3,333,501  |    |            | $ |           |             |  | $ |                     |    |  | $     |          |   |  | $ | 3,333,501
|Certificates of deposit and other time deposits.        |  |                                     | 240,560    |    |            |   | 1,070,762  |             |  |   | 856,075              |    |  |       | 265,040   |   |  |   | 2,432,437
|Junior subordinated debentures                          |  |                                     | 85,265     |    |            |   |           |             |  |   | 7,000                |    |  |       |          |   |  |   | 92,265   
|Securities sold under repurchase agreements             |  |                                     | 72,596     |    |            |   |           |             |  |   |                     |    |  |       |          |   |  |   | 72,596   
|Other borrowings                                        |  |                                     | 952        |    |            |   | 10,133     |             |  |   | 889                  |    |  |       | 14,166    |   |  |   | 26,140   
|                                                        |  |                                     |            |    |            |   |            |             |  |   |                      |    |  |       |           |   |  |   |          
|Total interest-bearing liabilities                      |  | $                                   | 3,732,874  |    |            | $ | 1,080,895  |             |  | $ | 863,964              |    |  | $     | 279,206   |   |  | $ | 5,956,939
|                                                        |  |                                     |            |    |            |   |            |             |  |   |                      |    |  |       |           |   |  |   |          
|Period GAP                                              |  | $                                   | (2,808,062 | )  |            | $ | (265,792   | )           |  | $ | (29,821              | )  |  | $     | 4,637,431 |   |  | $ | 1,533,756
|Cumulative GAP                                          |  | $                                   | (2,808,062 | )  |            | $ | (3,073,854 | )           |  | $ | (3,103,675           | )  |  | $     | 1,533,756 |   |  |   |          
|Period GAP to total assets                              |  |                                     | (31.73     | )% |            |   | (3.00      | )%          |  |   | (0.34                | )% |  |       | 52.40     | % |  |   |          
|Cumulative GAP to total assets                          |  |                                     | (31.73     | )% |            |   | (34.73     | )%          |  |   | (35.07               | )% |  |       | 17.33     | % |  |   |          

While the GAP position is a useful tool in measuring interest rate risk and contributes toward
effective asset and liability management, it is difficult to predict the effect of changing interest rates solely on that measure, without accounting for alterations in the maturity or repricing characteristics of the balance sheet that occur during
changes in market interest rates. For example, the GAP position reflects only the prepayment assumptions pertaining to the current rate environment. Assets tend to prepay more rapidly during periods of declining interest rates than during periods of
rising interest rates. Because of this and other risk factors not contemplated by the GAP position, an institution could have a matched GAP position in the current rate environment and still have its



58



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##### Table of Contents

##### Index to Financial Statements

net interest income exposed to increased rate risk. Additionally, the Company had $1.493 billion in noninterest-bearing deposits at December 31, 2009 that are not reflected in the table
above and are not directly impacted by interest rate changes.

The assumptions used are inherently uncertain and, as a result,
the model cannot precisely measure future net interest income or precisely predict the impact of fluctuations in market interest rates on net interest income. Actual results will differ from the models simulated results due to timing,
magnitude and frequency of interest rate changes as well as changes in market conditions and the application and timing of various management strategies.

In addition to GAP analysis, the Company uses an interest rate risk simulation model and shock analysis to test the interest rate sensitivity of net interest income and the balance sheet, respectively.
Contractual maturities and repricing opportunities of loans are incorporated in the model as are prepayment assumptions, maturity data and call options within the investment portfolio. Assumptions based on past experience are incorporated into the
model for nonmaturity deposit accounts. The assumptions used are inherently uncertain and, as a result, the model cannot precisely measure future net interest income or precisely predict the impact of fluctuations in market interest rates on net
interest income. Actual results will differ from the models simulated results due to timing, magnitude and frequency of interest rate changes as well as changes in market conditions and the application and timing of various management
strategies.

The Company utilizes static balance sheet rate shocks to estimate the potential impact on net interest income of
changes in interest rates under various rate scenarios. This analysis estimates a percentage of change in the metric from the stable rate base scenario versus alternative scenarios of rising and falling market interest rates by instantaneously
shocking a static balance sheet. The following table summarizes the simulated change in net interest income over a 12-month horizon as of December 31, 2009:



|                                        |  |                                      |   
|--------------------------------------- |  | ------------------------------------ | --
|Change in Interest Rates (Basis Points) |  | Percent Changein Net Interest Income |   
|+200                                    |  | (5.7                                 | )%
|+100                                    |  | (1.7                                 | )%
|Base                                    |  |                                     |   
|-100                                    |  | (2.6                                 | )%

The results
are primarily due to behavior of demand, money market and savings deposits during such rate fluctuations. The Company has found that historically, interest rates on these deposits change more slowly than changes in the discount and federal funds
rates. This assumption is incorporated into the simulation model and is generally not fully reflected in a GAP analysis. The assumptions incorporated into the model are inherently uncertain and, as a result, the model cannot precisely measure future
net interest income or precisely predict the impact of fluctuations in market interest rates on net interest income. Actual results will differ from the models simulated results due to timing, magnitude and frequency of interest rate changes
as well as changes in market conditions and the application and timing of various strategies.

Liquidity

Liquidity involves the Companys ability to raise funds to support asset growth and acquisitions or reduce assets to meet deposit
withdrawals and other payment obligations, to maintain reserve requirements and otherwise to operate the Company on an ongoing basis and manage unexpected events. During the two years ended December 31, 2009, the Companys liquidity needs
have primarily been met by growth in core deposits, security and loan maturities and amortizing investment and loan portfolios. Although access to purchased funds from correspondent banks and over-night advances from Federal Home Loan Bank-Dallas is
available and has been utilized on occasion to take advantage of investment opportunities, the Company does not generally rely on these external funding sources.



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##### Index to Financial Statements

The following table illustrates, during the years presented, the mix of the Companys
funding sources and the average assets in which those funds are invested as a percentage of the Companys average total assets for the period indicated. Average assets totaled $8.85 billion in 2009 compared to $7.03 billion in 2008.



|                                                                |  |        |   |  |        |  
|--------------------------------------------------------------- |  | ------ | - |  | ------ | -
|                                                                |  | 2009   |   |  | 2008   |  
|Source of Funds:                                                |  |        |   |  |        |  
|Deposits:                                                       |  |        |   |  |        |  
|Non-interest-bearing                                            |  | 16.82  | % |  | 18.10  | %
|Interest-bearing                                                |  | 64.65  |   |  | 59.78  |  
|Junior subordinated debentures                                  |  | 1.04   |   |  | 1.42   |  
|Securities sold under repurchase agreements                     |  | 1.06   |   |  | 1.20   |  
|Other borrowings                                                |  | 0.86   |   |  | 1.77   |  
|Other non-interest-bearing liabilities                          |  | 0.83   |   |  | 0.75   |  
|Shareholders equity                                            |  | 14.74  |   |  | 16.98  |  
|                                                                |  |        |   |  |        |  
|Total                                                           |  | 100.00 | % |  | 100.00 | %
|                                                                |  |        |   |  |        |  
|Uses of Funds:                                                  |  |        |   |  |        |  
|Loans                                                           |  | 39.04  | % |  | 46.27  | %
|Securities                                                      |  | 45.79  |   |  | 34.30  |  
|Federal funds sold and other interest-earning assets            |  | 0.87   |   |  | 2.33   |  
|Other non-interest-earning assets                               |  | 14.30  |   |  | 17.10  |  
|                                                                |  |        |   |  |        |  
|Total                                                           |  | 100.00 | % |  | 100.00 | %
|                                                                |  |        |   |  |        |  
|Average non-interest bearing deposits to total average deposits |  | 20.64  | % |  | 23.24  | %
|Average loans to average deposits                               |  | 47.92  | % |  | 59.41  | %

The
Companys largest source of funds is deposits and its largest uses of funds are securities and loans. The Company does not expect a change in the source or use of its funds in the future. The Companys average loans grew 6.3% for the year
ended December 31, 2009 compared with the year ended December 31, 2008. The increase in average loans has primarily been funded by an increase in deposits through acquisitions and internal growth. The Company predominantly invests excess
deposits in government backed securities until the funds are needed to fund loan growth. The Companys securities portfolio has a weighted average life of 3.0 years and an effective duration of 2.8 years at December 31, 2009.

As of December 31, 2009, the Company had outstanding $496.7 million in commitments to extend credit and $13.4 million in commitments
associated with outstanding standby letters of credit. Since commitments associated with letters of credit and commitments to extend credit may expire unused, the total outstanding may not necessarily reflect the actual future cash funding
requirements.

The Company has no exposure to future cash requirements associated with known uncertainties or capital
expenditures of a material nature.

As of December 31, 2009, the Company had cash and cash equivalents of $195.3 million
compared with $228.6 million at December 31, 2008. The decrease was primarily due to a decrease in cash and due from banks of $38.6 million.

Contractual Obligations

The following table summarizes the Companys contractual obligations and other
commitments to make future payments as of December 31, 2009 (other than deposit obligations and securities sold repurchase agreements). The Companys future cash payments associated with its contractual obligations pursuant to its junior
subordinated debentures, FHLB notes payable and operating leases as of December 31, 2009 are summarized below. Payments for junior subordinated debentures include interest of $73.4 million that will be



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##### Index to Financial Statements

paid over the future periods. The future interest payments were calculated using the current rate in effect at December 31, 2009. With respect to floating interest rates, the payments were
determined based on the 3-month LIBOR in effect at December 31, 2009. The current principal balance of the junior subordinated debentures at December 31, 2009 was $92.3 million. Payments for FHLB notes payable include interest of $5.0
million that will be paid over the future periods. Payments related to leases are based on actual payments specified in underlying contracts.



|                                     |  |                        |        |                                      |   |                                     |  |                |        |       |   |         |  |   |        
|------------------------------------ |  | ---------------------- | ------ | ------------------------------------ | - | ----------------------------------- |  | -------------- | ------ | ----- | - | ------- |  | - | -------
|                                     |  | Payments due in:      
|                                     |  | 1 year or less         |        | More than 1year but lessthan 3 years |   | 3 years ormore but lessthan 5 years |  | 5 yearsor more |        | Total
|                                     |  | (Dollars in thousands)
|Junior subordinated debentures       |  | $                      | 3,057  |                                      | $ | 6,114                               |  | $              | 6,114  |       | $ | 150,402 |  | $ | 165,687
|Federal Home Loan Bank notes payable |  |                        | 12,388 |                                      |   | 4,062                               |  |                | 3,258  |       |   | 11,458  |  |   | 31,166 
|Operating leases                     |  |                        | 4,219  |                                      |   | 6,440                               |  |                | 3,828  |       |   | 796     |  |   | 15,283 
|                                     |  |                        |        |                                      |   |                                     |  |                |        |       |   |         |  |   |        
|Total.                               |  | $                      | 19,664 |                                      | $ | 16,616                              |  | $              | 13,200 |       |   | 162,656 |  | $ | 212,136
|                                     |  |                        |        |                                      |   |                                     |  |                |        |       |   |         |  |   |        

Off-Balance Sheet Items

In the normal course of business, the Company enters into various transactions, which, in accordance with accounting principles generally
accepted in the United States, are not included in its consolidated balance sheets. The Company enters into these transactions to meet the financing needs of its customers. These transactions include commitments to extend credit and standby letters
of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets.

The Companys commitments associated with outstanding standby letters of credit and commitments to extend credit expiring by period as of December 31, 2009 are summarized below. Since
commitments associated with letters of credit and commitments to extend credit may expire unused, the amounts shown do not necessarily reflect the actual future cash funding requirements:



|                             |  |                        |         |                                      |   |                                     |  |                |       |       |   |         |  |   |        
|---------------------------- |  | ---------------------- | ------- | ------------------------------------ | - | ----------------------------------- |  | -------------- | ----- | ----- | - | ------- |  | - | -------
|                             |  | 1 year or less         |         | More than 1year but lessthan 3 years |   | 3 years ormore but lessthan 5 years |  | 5 yearsor more |       | Total
|                             |  | (Dollars in thousands)
|Standby letters of credit    |  | $                      | 11,147  |                                      | $ | 2,212                               |  | $              | 60    |       | $ |        |  | $ | 13,419 
|Commitments to extend credit |  |                        | 327,816 |                                      |   | 22,203                              |  |                | 3,193 |       |   | 143,529 |  |   | 496,741
|                             |  |                        |         |                                      |   |                                     |  |                |       |       |   |         |  |   |        
|Total                        |  | $                      | 338,963 |                                      | $ | 24,415                              |  | $              | 3,253 |       | $ | 143,529 |  | $ | 510,160
|                             |  |                        |         |                                      |   |                                     |  |                |       |       |   |         |  |   |        

Standby Letters of Credit.Standby letters of
credit are written conditional commitments issued by the Company to guarantee the performance of a customer to a third party. In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Company
would be required to fund the commitment. The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount of the commitment. If the commitment is funded, the Company would be entitled to
seek recovery from the customer. The Companys policies generally require that standby letter of credit arrangements contain security and debt covenants similar to those contained in loan agreements.

Commitments to Extend Credit.The Company enters into contractual commitments to extend credit, normally with fixed expiration dates
or termination clauses, at specified rates and for specific purposes. Substantially all of the Companys commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding. The Company
minimizes its exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures. Management assesses the credit risk associated with certain commitments to extend credit in determining the level of the
allowance for credit losses.



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Capital Resources

Capital management consists of providing equity to support the Companys current and future operations. The Company is subject to capital adequacy requirements imposed by the Federal Reserve Board
and the Bank is subject to capital adequacy requirements imposed by the FDIC. Both the Federal Reserve Board and the FDIC have adopted risk-based capital requirements for assessing bank holding company and bank capital adequacy. These standards
define capital and establish minimum capital requirements in relation to assets and off-balance sheet exposure, adjusted for credit risk. The risk-based capital standards currently in effect are designed to make regulatory capital requirements more
sensitive to differences in risk profiles among bank holding companies and banks, to account for off-balance sheet exposure and to minimize disincentives for holding liquid assets. Assets and off-balance sheet items are assigned to broad risk
categories, each with appropriate relative risk weights. The resulting capital ratios represent capital as a percentage of total risk-weighted assets and off-balance sheet items.

The risk-based capital standards issued by the Federal Reserve Board require all bank holding companies to have Tier 1 capital
of at least 4.0% and total risk-based capital (Tier 1 and Tier 2) of at least 8.0% of total risk-weighted assets. Tier 1 capital generally includes common shareholders equity and qualifying perpetual preferred stock
together with related surpluses and retained earnings, less deductions for goodwill and various other intangibles. Tier 2 capital may consist of a limited amount of intermediate-term preferred stock, a limited amount of term subordinated
debt, certain hybrid capital instruments and other debt securities, perpetual preferred stock not qualifying as Tier 1 capital, and a limited amount of the general valuation allowance for loan losses. The sum of Tier 1 capital and Tier 2 capital is
total risk-based capital.

The Federal Reserve Board has also adopted guidelines which supplement the risk-based
capital guidelines with a minimum ratio of Tier 1 capital to average total consolidated tangible assets, or leverage ratio, of 3.0% for institutions with well diversified risk, including no undue interest rate exposure; excellent asset
quality; high liquidity; good earnings; and that are generally considered to be strong banking organizations, rated composite 1 under applicable federal guidelines, and that are not experiencing or anticipating significant growth. Other banking
organizations are required to maintain a leverage ratio of at least 4.0%. These rules further provide that banking organizations experiencing internal growth or making acquisitions will be expected to maintain capital positions substantially above
the minimum supervisory levels and comparable to peer group averages, without significant reliance on intangible assets.

Pursuant to FDICIA, each federal banking agency revised its risk-based capital standards to ensure that those standards take adequate account of interest rate risk, concentration of credit risk and the risks of nontraditional activities, as
well as reflect the actual performance and expected risk of loss on multifamily mortgages. The Bank is subject to capital adequacy guidelines of the FDIC that are substantially similar to the Federal Reserve Boards guidelines. Also pursuant to
FDICIA, the FDIC has promulgated regulations setting the levels at which an insured institution such as the Bank would be considered well-capitalized, adequately capitalized, undercapitalized, significantly
undercapitalized and critically undercapitalized. Under the FDICs regulations, the Bank is classified well-capitalized for purposes of prompt corrective action.

Total shareholders equity increased to $1.351 billion at December 31, 2009 compared with $1.255 billion at
December 31, 2008, an increase of $96.1 million or 7.7%. This increase was primarily the result of net income of $111.9 million and an increase in the change in unrealized gains on available for sale securities of $7.0 million, partially offset
by dividends paid on the Common Stock of $26.2 million. During 2008, shareholders equity increased to $1.255 billion at December 31, 2008 compared with $1.127 billion at December 31, 2007, an increase of $127.7 million or 11.3%. This
increase was primarily the result of net income of $84.5 million and $56.1 million in Common Stock issued in connection with the 1stChoice acquisition, partially offset by dividends paid on the Common Stock of $23.4 million.



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The following table provides a comparison of the Companys and the Banks leverage
and risk-weighted capital ratios as of December 31, 2009 to the minimum and well-capitalized regulatory standards:



|                                |  |                                              |      |  |                                                                              |   |  |                                  |  
|------------------------------- |  | -------------------------------------------- | ---- |  | ---------------------------------------------------------------------------- | - |  | -------------------------------- | -
|                                |  | Minimum Requiredfor CapitalAdequacy Purposes |      |  | To Be Categorized asWell-Capitalized Under PromptCorrective ActionProvisions |   |  | Actual Ratio atDecember 31, 2009 |  
|The Company                     |  |                                              |      |  |                                                                              |   |  |                                  |  
|Leverage ratio                  |  | 3.00                                         | %(1) |  | N/A                                                                          |   |  | 6.47                             | %
|Tier 1 risk-based capital ratio |  | 4.00                                         |      |  | N/A                                                                          |   |  | 12.61                            |  
|Total risk-based capital ratio  |  | 8.00                                         |      |  | N/A                                                                          |   |  | 13.86                            |  
|The Bank                        |  |                                              |      |  |                                                                              |   |  |                                  |  
|Leverage ratio                  |  | 3.00                                         | %(2) |  | 5.00                                                                         | % |  | 6.31                             | %
|Tier 1 risk-based capital ratio |  | 4.00                                         |      |  | 6.00                                                                         |   |  | 12.30                            |  
|Total risk-based capital ratio  |  | 8.00                                         |      |  | 10.00                                                                        |   |  | 13.55                            |  



|(1) | The Federal Reserve Board may require the Company to maintain a leverage ratio above the required minimum.
|--- | ----------------------------------------------------------------------------------------------------------

|(2) | The FDIC may require the Bank to maintain a leverage ratio above the required minimum.
|--- | --------------------------------------------------------------------------------------

As of December 31, 2009, all trust preferred securities were counted as Tier 1 capital.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

For information regarding the market risk of the Companys financial instruments, see Item 7. Managements Discussion and
Analysis of Financial Condition and Results of OperationFinancial ConditionInterest Rate Sensitivity and Market Risk. The Companys principal market risk exposure is to changes in interest rates.



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|ITEM | 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
|---- | ----------------------------------------------

The financial statements, the report thereon, the notes thereto and supplementary data commence at page 74 of this Annual Report on Form 10-K.

The following table presents certain unaudited quarterly financial information concerning the Companys results of operations for each
of the two years indicated below. The information should be read in conjunction with the historical consolidated financial statements of the Company and the notes thereto appearing elsewhere in this Annual Report on Form 10-K.

CONSOLIDATED QUARTERLY FINANCIAL DATA OF THE COMPANY



|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|----------------------------------- |  | --------------------------------------------- | ------ | ------------ | - | ------- | ------- |  | -------- | ------- |  | - | -------
|                                    |  | Quarter Ended 2009                           
|                                    |  | December 31                                   |        | September 30 |   |         | June 30 |  | March 31
|                                    |  | (Dollars in thousands, except per share data)
|                                    |  | (unaudited)                                  
|Interest income                     |  | $                                             | 99,585 |              | $ | 101,695 |         |  | $        | 102,768 |  | $ | 105,566
|Interest expense                    |  |                                               | 19,496 |              |   | 24,282  |         |  |          | 27,247  |  |   | 31,488 
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Net interest income                 |  |                                               | 80,089 |              |   | 77,413  |         |  |          | 75,521  |  |   | 74,078 
|Provision for credit losses         |  |                                               | 8,500  |              |   | 7,250   |         |  |          | 6,900   |  |   | 6,125  
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Net interest income after provision |  |                                               | 71,589 |              |   | 70,163  |         |  |          | 68,621  |  |   | 67,953 
|Noninterest income                  |  |                                               | 14,711 |              |   | 15,236  |         |  |          | 15,133  |  |   | 15,017 
|Noninterest expense                 |  |                                               | 40,176 |              |   | 41,201  |         |  |          | 44,300  |  |   | 44,023 
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Income before income taxes          |  |                                               | 46,124 |              |   | 44,198  |         |  |          | 39,454  |  |   | 38,947 
|Provision for income taxes          |  |                                               | 15,555 |              |   | 14,876  |         |  |          | 12,944  |  |   | 13,469 
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Net income                          |  | $                                             | 30,569 |              | $ | 29,322  |         |  | $        | 26,510  |  | $ | 25,478 
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Earnings per share(1):              |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Basic                               |  | $                                             | 0.66   |              | $ | 0.64    |         |  | $        | 0.57    |  | $ | 0.55   
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Diluted                             |  | $                                             | 0.65   |              | $ | 0.63    |         |  | $        | 0.57    |  | $ | 0.55   
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|                                    | 
|                                    |  | Quarter Ended 2008                           
|                                    |  | December 31                                   |        | September 30 |   |         | June 30 |  | March 31
|                                    |  | (Dollars in thousands, except per share data)
|                                    |  | (unaudited)                                  
|Interest income                     |  | $                                             | 96,588 |              | $ | 84,846  |         |  | $        | 81,979  |  | $ | 84,465 
|Interest expense                    |  |                                               | 32,631 |              |   | 27,040  |         |  |          | 28,008  |  |   | 32,470 
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Net interest income                 |  |                                               | 63,957 |              |   | 57,806  |         |  |          | 53,971  |  |   | 51,995 
|Provision for credit losses         |  |                                               | 6,000  |              |   | 1,700   |         |  |          | 1,000   |  |   | 1,167  
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Net interest income after provision |  |                                               | 57,957 |              |   | 56,106  |         |  |          | 52,971  |  |   | 50,828 
|Noninterest income                  |  |                                               | 13,508 |              |   | 13,117  |         |  |          | 13,066  |  |   | 12,679 
|Noninterest expense                 |  |                                               | 37,586 |              |   | 46,230  |         |  |          | 30,860  |  |   | 29,120 
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Income before income taxes          |  |                                               | 33,879 |              |   | 22,993  |         |  |          | 35,177  |  |   | 34,387 
|Provision for income taxes          |  |                                               | 11,194 |              |   | 7,546   |         |  |          | 11,740  |  |   | 11,449 
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Net income                          |  | $                                             | 22,685 |              | $ | 15,447  | (2)     |  | $        | 23,437  |  | $ | 22,938 
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Earnings per share(1):              |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Basic                               |  | $                                             | 0.49   |              | $ | 0.34    | (2)     |  | $        | 0.52    |  | $ | 0.52   
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        
|Diluted                             |  | $                                             | 0.49   |              | $ | 0.33    | (2)     |  | $        | 0.52    |  | $ | 0.52   
|                                    |  |                                               |        |              |   |         |         |  |          |         |  |   |        



|(1) | Earnings per share are computed independently for each of the quarters presented and therefore may not total earnings per share for the year.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Includes a $14.0 million pre-tax, or $9.1 million after-tax, impairment charge on write-down of securities for the quarter ended September 30, 2008.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------



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ITEM 9. CHANGES IN AND DISAGREEMENTS WITH
ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of disclosure controls and procedures. As of the end of the period covered by this report, the Company carried out an evaluation, under the supervision and with the participation of its management, including its Chief
Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of its disclosure controls and procedures. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls
and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management was required to apply judgment in evaluating its controls and procedures. Based on this
evaluation, the Companys Chief Executive Officer and Chief Financial Officer concluded that the Companys disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act were effective as of the end
of the period covered by this report.

Changes in internal control over financial reporting.There were no changes in
the Companys internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the quarter ended December 31, 2009, that have materially affected, or are reasonably likely
to materially affect, the Companys internal control over financial reporting.



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MANAGEMENTS REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

The management of the Company is responsible for establishing and maintaining adequate internal control over financial reporting. The
Companys internal control over financial reporting is a process designed under the supervision of the Companys Chief Executive Officer and Chief Financial Officer to provide reasonable assurance regarding the reliability of financial
reporting and the preparation of the Companys financial statements for external purposes in accordance with generally accepted accounting principles.

As of December 31, 2009, management assessed the effectiveness of the Companys internal control over financial reporting based on the criteria for effective internal control over financial
reporting established in Internal ControlIntegrated Framework, issued by the Committee of Sponsoring Organizations (COSO) of the Treadway Commission. This assessment included controls over the preparation of the
schedules equivalent to the basic financial statements in accordance with the instructions for the Consolidated Financial Statements for Bank Holding Companies (Form FR Y-9C) to meet the reporting requirements of Section 112 of the Federal
Deposit Insurance Corporation Improvement Act. Based on the assessment, management determined that the Company maintained effective internal control over financial reporting as of December 31, 2009.

Deloitte & Touche LLP the independent registered public accounting firm that audited the consolidated financial statements of the
Company included in this Annual Report on Form 10-K, has issued an attestation report on the Companys internal control over financial reporting as of December 31, 2009. The report is included in this Item under the heading Report of
Independent Registered Public Accounting Firm.

Compliance with Designated Laws and Regulations

Management is also responsible for ensuring compliance with the federal laws and regulations concerning loans to insiders and the federal and
state laws and regulations concerning dividend restrictions, both of which are designated by the Federal Deposit Insurance Corporation (FDIC) as safety and soundness laws and regulations.

Management assessed its compliance with the designated safety and soundness laws and regulations and has maintained records of its
determinations and assessments as required by the FDIC. Based on this assessment, management believes that the Company has complied, in all material respects, with the designated safety and soundness laws and regulations for the year ended
December 31, 2009.



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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of

Prosperity Bancshares, Inc.

Houston, Texas

We have audited the internal control over financial reporting of
Prosperity Bancshares, Inc. and subsidiaries (the Company) as of December 31, 2009, based on criteria established in Internal ControlIntegrated Frameworkissued by the Committee of Sponsoring Organizations of the
Treadway Commission. Because managements assessment and our audit were conducted to meet the reporting requirements of Section 112 of the Federal Deposit Insurance Corporation Improvement Act (FDICIA), managements assessment and our
audit of the Companys internal control over financial reporting included controls over the preparation of the schedules equivalent to the basic financial statements in accordance with the instructions for the Consolidated Financial Statements
for Bank Holding Companies (Form FR Y-9C). 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). 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, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and 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 by, or under the supervision of, the companys principal executive and principal financial officers, or persons performing similar functions, and effected by the companys
board of directors, management, and other personnel 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 the
inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis.
Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the 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, 2009, based on the criteria established inInternal ControlIntegrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have not examined and, accordingly, we do not express an opinion or any other form of assurance on managements
statement referring to compliance with laws and regulations.



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We have also audited, in accordance with the standards of the Public Company Accounting
Oversight Board (United States), the financial statements as of and for the year ended December 31, 2009 of the Company and our report dated March 1, 2010 expressed an unqualified opinion on those financial statements.

/s/ Deloitte & Touche LLP

Houston, Texas

March 1, 2010

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 information under the captions Election of
Directors, Continuing Directors and Executive Officers,  Section 16(a) Beneficial Ownership Reporting Compliance, Corporate GovernanceCommittees of the BoardAudit Committee, Corporate
GovernanceDirector Nomination Process and Corporate GovernanceCode of Ethics in the Companys definitive Proxy Statement for its 2010 Annual Meeting of Shareholders (the 2010 Proxy Statement) to be
filed with the Commission pursuant to Regulation 14A under the Exchange Act within 120 days of the Companys fiscal year end.

ITEM 11. EXECUTIVE COMPENSATION

The information required by this Item is incorporated herein by reference to the
information under the captions Executive Compensation and Other Matters and Director Compensation in the 2010 Proxy Statement.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED SHAREHOLDER MATTERS

Certain information required by this Item 12 is included under Securities Authorized for Issuance under Equity Compensation
Plans in Part II, Item 5 of this Annual Report on Form 10-K. The other information required by this Item is incorporated herein by reference to the information under the caption Beneficial Ownership of Common Stock by Management of
the Company and Principal Shareholders in the 2010 Proxy Statement.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE

The information required by this Item is incorporated herein by reference to the information under the captions Corporate GovernanceDirector Independence and Certain Relationships and Related Transactions in
the 2010 Proxy Statement.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information required by this Item is incorporated herein by reference to the information under the caption Fees and Services of
Independent Registered Public Accounting Firm in the 2010 Proxy Statement.



68



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##### Index to Financial Statements

PART IV.

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a) The following documents are filed as part of this Annual Report on Form 10-K:

1. Consolidated
Financial Statements. Reference is made to the Consolidated Financial Statements, the report thereon and the notes thereto commencing at page 74 of this Annual Report on Form 10-K. Set forth below is a list of such Consolidated Financial Statements:

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets as of December 31, 2009 and 2008

Consolidated Statements of Income for the Years Ended December 31, 2009, 2008, and 2007

Consolidated Statements of Changes in Shareholders Equity for the Years Ended December 31, 2009, 2008 and 2007

Consolidated Statements of Cash Flows for the Years Ended December 31, 2009, 2008 and 2007

Notes to Consolidated Financial Statements

2. Financial Statement Schedules. All supplemental schedules are omitted as inapplicable or because the required information
is included in the Consolidated Financial Statements or notes thereto.

3. The exhibits to this Annual Report
on Form 10-K listed below have been included only with the copy of this report filed with the Securities and Exchange Commission. The Company will furnish a copy of any exhibit to shareholders upon written request to the Company and payment of a
reasonable fee not to exceed the Companys reasonable expense.

Each exhibit marked with an asterisk is filed or
furnished with this Annual Report on Form 10-K as noted below.



|                  |  |   |  |                                                                                                                                                                                                                                                                                                                                                                                                                                       
|----------------- |  | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit Number(1) |  |   |  | Description                                                                                                                                                                                                                                                                                                                                                                                                                           
|2.1               |  |  |  | Purchase and Assumption Agreement dated November 7, 2008, by and among Prosperity Bank and the Federal Deposit Insurance Corporation in its corporate capacity and in its capacity
as receiver of Franklin Bank, S.S.B., Houston, Texas (incorporated herein by reference to Exhibit 2.1 to the Companys Current Report on Form 8-K filed November 13, 2008)                                                                         
|                  |  |  
|3.1               |  |  |  | Amended and Restated Articles of Incorporation of Prosperity Bancshares, Inc. (incorporated herein by reference to Exhibit 3.1 to the Companys Registration Statement on
Form S-1 (Registration No. 333-63267))                                                                                                                                                                                                                      
|                  |  |  
|3.2               |  |  |  | Articles of Amendment to Amended and Restated Articles of Incorporation of Prosperity Bancshares, Inc. (incorporated herein by reference to Exhibit 3.2 to the Companys
Quarterly Report on Form 10-Q for the quarter ended March 31, 2006)                                                                                                                                                                                          
|                  |  |  
|3.3               |  |  |  | Amended and Restated Bylaws of Prosperity Bancshares, Inc. (incorporated herein by reference to Exhibit 3.1 to the Companys Current Report on Form 8-K filed October 19,
2007)                                                                                                                                                                                                                                                       
|                  |  |  
|4.1               |  |  |  | Form of certificate representing shares of Prosperity Bancshares, Inc. common stock (incorporated herein by reference to Exhibit 4 to the Companys Registration Statement on
Form S-1 (Registration No. 333-63267))                                                                                                                                                                                                                  
|                  |  |  
|4.2               |  |  |  | Indenture dated as of July 31, 2001 by and between Prosperity Bancshares, Inc., as Issuer, and State Street Bank and Trust Company of Connecticut, National Association, with
respect to the Floating Rate Junior Subordinated Deferrable Interest Debentures of Prosperity Bancshares, Inc. (incorporated herein by reference to Exhibit 4.1 to the Companys Quarterly Report on Form 10-Q for the quarter ended September 30,
2001)



69



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|                 |  |   |  |                                                                                                                                                                                                                                                                                                                
|---------------- |  | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber(1) |  |   |  | Description                                                                                                                                                                                                                                                                                                    
|4.3              |  |  |  | Amended and Restated Declaration of Trust of Prosperity Statutory Trust II dated as of July 31, 2001 (incorporated herein by reference to Exhibit 4.2 to the Companys
Quarterly Report on Form 10-Q for the quarter ended September 30, 2001)                                                                 
|                 |  |  
|4.4              |  |  |  | Guarantee Agreement dated as of July 31, 2001 by and between Prosperity Bancshares, Inc. and State Street Bank and Trust Company of Connecticut, National Association
(incorporated herein by reference to Exhibit 4.3 to the Companys Quarterly Report on Form 10-Q for the quarter ended September 30, 2001)
|                 |  |  
|10.1            |  |  |  | Prosperity Bancshares, Inc. 1995 Stock Option Plan (incorporated herein by reference to Exhibit 10.1 to the Companys Registration Statement on Form S-1 (Registration
No. 333-63267))                                                                                                                         
|                 |  |  
|10.2            |  |  |  | Prosperity Bancshares, Inc. 1998 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.2 to the Companys Registration Statement on Form S-1
(Registration No. 333-63267))                                                                                                                      
|                 |  |  
|10.3            |  |  |  | Prosperity Bancshares, Inc. 2004 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.3 to the Companys Registration Statement on Form S-4
(Registration No. 333-121767))                                                                                                                     
|                 |  |  
|10.4            |  |  |  | Second Amended and Restated Employment Agreement effective January 1, 2009 by and among Prosperity Bancshares, Inc., Prosperity Bank and David Zalman (incorporated herein by
reference to Exhibit 10.1 to the Companys Current Report on Form 8-K filed January 7, 2009)                                     
|                 |  |  
|10.5            |  |  |  | Second Amended and Restated Employment Agreement effective January 1, 2009 by and among Prosperity Bancshares, Inc., Prosperity Bank and H. E. Timanus, Jr.
(incorporated herein by reference to Exhibit 10.4 to the Companys Current Report on Form 8-K filed January 7, 2009)                               
|                 |  |  
|10.6            |  |  |  | Amended and Restated Employment Agreement effective January 1, 2009 by and among Prosperity Bancshares, Inc., Prosperity Bank and James D. Rollins III (incorporated herein by
reference to Exhibit 10.3 to the Companys Current Report on Form 8-K filed on January 7, 2009)                                 
|                 |  |  
|10.7            |  |  |  | Amended and Restated Employment Agreement effective January 1, 2009 by and among Prosperity Bancshares, Inc., Prosperity Bank and David Hollaway (incorporated herein by reference
to Exhibit 10.2 to the Companys Current Report on Form 8-K filed on January 7, 2009)                                       
|                 |  |  
|10.8            |  |  |  | Paradigm Bancorporation, Inc. 1999 Stock Incentive Plan (incorporated herein by reference to Exhibit 4.2 to the Companys Registration Statement on Form S-8 (Registration
No. 333-100815))                                                                                                                    
|                 |  |  
|10.9            |  |  |  | MainBancorp, Inc. 1996 Employee Stock Option Plan (incorporated herein by reference to Exhibit 4.2 to the Companys Registration Statement on Form S-8 (Registration No.
333-110755))                                                                                                                          
|                 |  |  
|10.10           |  |  |  | Form of MainBancorp, Inc. Non-Qualified Stock Option Agreement (incorporated herein by reference to Exhibit 4.3 to the Companys Registration Statement on Form S-8
(Registration No. 333-110755))                                                                                                             
|                 |  |  
|10.11           |  |  |  | First Capital Bankers, Inc. 1996 Executive Stock Option Plan (incorporated herein by reference to Exhibit 10.11 to the Companys Annual Report on Form 10-K for the year
ended December 31, 2004)                                                                                                              
|                 |  |  
|10.12           |  |  |  | First Capital Bankers, Inc. Amended and Restated 1998 Stock Option Plan (incorporated herein by reference to Exhibit 10.12 to the Companys Annual Report on Form 10-K for
the year ended December 31, 2004)                                                                                                   



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|                 |  |   |  |                                                                                                                                                                                                         
|---------------- |  | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber(1) |  |   |  | Description                                                                                                                                                                                             
|10.13           |  |  |  | SNB Bancshares, Inc. 2002 Stock Option Plan, as amended and restated (incorporated herein by reference to Exhibit 4.2 to the Companys Registration Statement on Form S-8
(Registration No. 333-133214))
|                 |  |  
|10.14           |  |  |  | Texas United Bancshares, Inc. 1998 Incentive Stock Option Plan (incorporated herein by reference to Exhibit 4.2 to the Companys Registration Statement on Form S-8
(Registration No. 333-140425))      
|                 |  |  
|10.15           |  |  |  | Texas United Bancshares, Inc. 2004 Stock Incentive Plan (incorporated herein by reference to Exhibit 4.3 to the Companys Registration Statement on Form S-8 (Registration
No. 333-140425))             
|                 |  |  
|21.1*            |  |  |  | Subsidiaries of Prosperity Bancshares, Inc.                                                                                                                                                             
|                 |  |  
|23.1*            |  |  |  | Consent of Deloitte & Touche LLP                                                                                                                                                                        
|                 |  |  
|31.1*            |  |  |  | Certification of the Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.                                                                             
|                 |  |  
|31.2*            |  |  |  | Certification of the Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.                                                                             
|                 |  |  
|32.1**           |  |  |  | Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                     
|                 |  |  
|32.2**           |  |  |  | Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                     



| | Management contract or compensatory plan or arrangement.
|- | --------------------------------------------------------

|* | Filed with this Annual Report on Form 10-K.
|- | -------------------------------------------

|** | Furnished with this Annual Report on Form 10-K.
|-- | -----------------------------------------------

|(1) | The Company has other long-term debt agreements that meet the exclusion set forth in Section 601(b)(4)(iii)(A) of Regulation S-K. The Company hereby agrees to
furnish a copy of such agreements to the Commission upon request.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

(b) Exhibits. See the exhibit list included
in Item 15(a)3 of this Annual Report on Form 10-K.

(c) Financial Statement Schedules. See Item 15(a)2 of this
Annual Report on Form 10-K.



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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.

Date: March 1,
2010



PROSPERITY BANCSHARES, INC.® (Registrant)By:

/s/    DAVID
ZALMANDavid Zalman Chairman of the Board and Chief Executive Officer


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



|                                                             |  |                                                                                           |  |              
|------------------------------------------------------------ |  | ----------------------------------------------------------------------------------------- |  | -------------
|Signature                                                    |  | Positions                                                                                 |  | Date         
|                                                             |  |                                                                                          
|/s/    DAVID
ZALMAN David Zalman                             |  | Chairman of the Board and Chief Executive Officer (principal executive officer); Director |  | March 1, 2010
|                                                             |  |                                                                                          
|/s/    DAVID
HOLLAWAY David Hollaway                         |  | Chief Financial Officer (principal financial officer and principal accounting officer)    |  | March 1, 2010
|                                                             |  |                                                                                          
|/s/    JAMES A.
BOULIGNY James A. Bouligny                   |  | Director                                                                                  |  | March 1, 2010
|                                                             |  |                                                                                          
|/s/    WILLIAM H. FAGAN,
M.D. William Fagan, M.D.            |  | Director                                                                                  |  | March 1,2010 
|                                                             |  |                                                                                          
|/s/    LEAH
HENDERSON Leah Henderson                         |  | Director                                                                                  |  | March 1,2010 
|                                                             |  |                                                                                          
|/s/    NED S.
HOLMES Ned S. Holmes                           |  | Director                                                                                  |  | March 1, 2010
|                                                             |  |                                                                                          
|/s/    PERRY MUELLER,
JR., D.D.S. Perry Mueller, Jr., D.D.S. |  | Director                                                                                  |  | March 1, 2010
|                                                             |  |                                                                                          
|/s/    JAMES D. ROLLINS
III James D. Rollins III             |  | Director                                                                                  |  | March 1, 2010
|                                                             |  |                                                                                          
|/s/    HARRISON STAFFORD
II Harrison Stafford II             |  | Director                                                                                  |  | March 1, 2010
|                                                             |  |                                                                                          
|/s/    ROBERT
STEELHAMMER Robert Steelhammer                 |  | Director                                                                                  |  | March 1, 2010



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|                                           |  |           |  |              
|------------------------------------------ |  | --------- |  | -------------
|Signature                                  |  | Positions |  | Date         
|                                           |  |          
|/s/    H.E. TIMANUS,
JR. H.E. Timanus, Jr. |  | Director  |  | March 1, 2010
|                                           |  |          
|/s/    ERVAN
ZOUZALIK Ervan Zouzalik       |  | Director  |  | March 1, 2010



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TABLE OF CONTENTS TO CONSOLIDATED FINANCIAL STATEMENTS



|                                                                                                                 |  |     
|---------------------------------------------------------------------------------------------------------------- |  | ----
|                                                                                                                 |  | Page
|Prosperity Bancshares, Inc.®                                                                                     |  |     
|                                                                                                                 | 
|Report of Independent Registered Public Accounting Firm                                                          |  | 75  
|                                                                                                                 | 
|Consolidated Balance Sheets as of December 31, 2009 and 2008                                                     |  | 76  
|                                                                                                                 | 
|Consolidated Statements of Income for the Years Ended December 31, 2009, 2008 and
2007                           |  | 77  
|                                                                                                                 | 
|Consolidated Statements of Changes in Shareholders Equity for the Years Ended December 
31, 2009, 2008 and 2007 |  | 78  
|                                                                                                                 | 
|Consolidated Statements of Cash Flows for the Years Ended December 31, 2009, 2008 and
2007                       |  | 79  
|                                                                                                                 | 
|Notes to Consolidated Financial Statements                                                                       |  | 80  



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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of

Prosperity Bancshares, Inc.

Houston, Texas

We have audited the accompanying consolidated balance sheets of
Prosperity Bancshares Inc. and subsidiaries (the Company) as of December 31, 2009 and 2008, and the related consolidated statements of income, changes in shareholders equity, and cash flows for each of the three years in the
period ended December 31, 2009. These financial statements are the responsibility of the Companys management. 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). 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 audits provide a reasonable
basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the
financial position of Prosperity Bancshares, Inc. and subsidiaries at December 31, 2009 and 2008, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2009, in conformity
with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the
standards of the Public Company Accounting Oversight Board (United States), the Companys internal control over financial reporting as of December 31, 2009, based on the criteria established in Internal ControlIntegrated
Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 1, 2010 expressed an unqualified opinion on the Companys internal control over financial reporting.

/s/ Deloitte & Touche LLP

Houston, Texas

March 1, 2010



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS



|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ---------------------- | --------- | - | ---- | - | --------- | -
|                                                                                                                                                                                                                                         |  | December 31,           |          
|                                                                                                                                                                                                                                         |  | 2009                   |           |   | 2008 |  
|                                                                                                                                                                                                                                         |  | (Dollars in thousands) |          
|ASSETS                                                                                                                                                                                                                                   |  |                        |           |   |      |   |           |  
|Cash and due from banks                                                                                                                                                                                                                  |  | $                      | 194,963   |   |      | $ | 212,335   |  
|Federal funds sold                                                                                                                                                                                                                       |  |                        | 354       |   |      |   | 16,298    |  
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|Total cash and cash equivalents                                                                                                                                                                                                          |  |                        | 195,317   |   |      |   | 228,633   |  
|Interest bearing deposits in financial institutions                                                                                                                                                                                      |  |                        |          |   |      |   | 106       |  
|Available for sale securities, at fair value                                                                                                                                                                                             |  |                        | 599,503   |   |      |   | 817,244   |  
|Held to maturity securities, at cost (fair value of $3,633,753 and $3,408,981, respectively)                                                                                                                                             |  |                        | 3,518,787 |   |      |   | 3,343,157 |  
|Loans held for investment                                                                                                                                                                                                                |  |                        | 3,376,703 |   |      |   | 3,566,958 |  
|Loans held for sale                                                                                                                                                                                                                      |  |                        |          |   |      |   | 99        |  
|Less allowance for credit losses                                                                                                                                                                                                         |  |                        | (51,863   | ) |      |   | (36,970   | )
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|Loans, net                                                                                                                                                                                                                               |  |                        | 3,324,840 |   |      |   | 3,530,087 |  
|Accrued interest receivable                                                                                                                                                                                                              |  |                        | 30,571    |   |      |   | 34,617    |  
|Goodwill                                                                                                                                                                                                                                 |  |                        | 876,987   |   |      |   | 874,654   |  
|Core deposit intangibles, net of accumulated amortization of $41,362 and $31,287, respectively                                                                                                                                           |  |                        | 35,385    |   |      |   | 38,196    |  
|Bank premises and equipment, net                                                                                                                                                                                                         |  |                        | 148,855   |   |      |   | 123,638   |  
|Other real estate owned                                                                                                                                                                                                                  |  |                        | 7,829     |   |      |   | 4,450     |  
|Bank Owned Life Insurance (BOLI), net                                                                                                                                                                                                    |  |                        | 48,091    |   |      |   | 46,794    |  
|Federal Home Loan Bank of Dallas stock                                                                                                                                                                                                   |  |                        | 16,019    |   |      |   | 15,483    |  
|Leased assets                                                                                                                                                                                                                            |  |                        | 326       |   |      |   | 928       |  
|Other assets                                                                                                                                                                                                                             |  |                        | 47,890    |   |      |   | 14,377    |  
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|TOTAL ASSETS                                                                                                                                                                                                                             |  | $                      | 8,850,400 |   |      | $ | 9,072,364 |  
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|LIABILITIES AND SHAREHOLDERS EQUITY                                                                                                                                                                                                     |  |                        |           |   |      |   |           |  
|LIABILITIES:                                                                                                                                                                                                                             |  |                        |           |   |      |   |           |  
|Deposits:                                                                                                                                                                                                                                |  |                        |           |   |      |   |           |  
|Noninterest-bearing                                                                                                                                                                                                                      |  | $                      | 1,492,612 |   |      | $ | 1,522,983 |  
|Interest-bearing                                                                                                                                                                                                                         |  |                        | 5,765,938 |   |      |   | 5,780,314 |  
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|Total deposits                                                                                                                                                                                                                           |  |                        | 7,258,550 |   |      |   | 7,303,297 |  
|Other borrowings                                                                                                                                                                                                                         |  |                        | 26,140    |   |      |   | 229,395   |  
|Securities sold under repurchase agreements                                                                                                                                                                                              |  |                        | 72,596    |   |      |   | 96,017    |  
|Accrued interest payable                                                                                                                                                                                                                 |  |                        | 7,343     |   |      |   | 14,625    |  
|Other liabilities                                                                                                                                                                                                                        |  |                        | 42,261    |   |      |   | 81,659    |  
|Junior subordinated debentures                                                                                                                                                                                                           |  |                        | 92,265    |   |      |   | 92,265    |  
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|Total liabilities                                                                                                                                                                                                                        |  |                        | 7,499,155 |   |      |   | 7,817,258 |  
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|COMMITMENTS AND CONTINGENCIES                                                                                                                                                                                                            |  |                        |           |   |      |   |           |  
|SHAREHOLDERS EQUITY:                                                                                                                                                                                                                    |  |                        |           |   |      |   |           |  
|Preferred stock, $1 par value; 20,000,000 shares authorized; none issued or outstanding                                                                                                                                                  |  |                        |          |   |      |   |          |  
|Common stock, $1 par value; 200,000,000 shares authorized; 46,577,968 and 46,116,801 shares issued at December 31, 2009 and
2008, respectively; 46,540,880 and 46,079,713 shares outstanding at December 31, 2009 and 2008, respectively |  |                        | 46,578    |   |      |   | 46,117    |  
|Capital surplus                                                                                                                                                                                                                          |  |                        | 870,460   |   |      |   | 867,380   |  
|Retained earnings                                                                                                                                                                                                                        |  |                        | 418,008   |   |      |   | 332,363   |  
|Accumulated other comprehensive incomenet unrealized gain on available for sale securities, net of tax of $9,049 and
$5,305, respectively                                                                                               |  |                        | 16,806    |   |      |   | 9,853     |  
|Less treasury stock, at cost, 37,088 shares                                                                                                                                                                                              |  |                        | (607      | ) |      |   | (607      | )
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|Total shareholders equity                                                                                                                                                                                                               |  |                        | 1,351,245 |   |      |   | 1,255,106 |  
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  
|TOTAL LIABILITIES AND SHAREHOLDERS EQUITY                                                                                                                                                                                               |  | $                      | 8,850,400 |   |      | $ | 9,072,364 |  
|                                                                                                                                                                                                                                         |  |                        |           |   |      |   |           |  

See notes to consolidated financial statements.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME



|                                                      |  |                                               |         |      |   |         |  |   |        
|----------------------------------------------------- |  | --------------------------------------------- | ------- | ---- | - | ------- |  | - | -------
|                                                      |  | For the Years Ended December 31,             
|                                                      |  | 2009                                          |         | 2008 |   | 2007   
|                                                      |  | (Dollars in thousands, except per share data)
|INTEREST INCOME:                                      |  |                                               |         |      |   |         |  |   |        
|Loans, including fees                                 |  | $                                             | 219,320 |      | $ | 227,466 |  | $ | 247,600
|Securities                                            |  |                                               | 190,106 |      |   | 118,186 |  |   | 89,467 
|Federal funds sold                                    |  |                                               | 188     |      |   | 2,217   |  |   | 3,526  
|Deposits in financial institutions                    |  |                                               |        |      |   | 9       |  |   | 15     
|                                                      |  |                                               |         |      |   |         |  |   |        
|Total interest income                                 |  |                                               | 409,614 |      |   | 347,878 |  |   | 340,608
|                                                      |  |                                               |         |      |   |         |  |   |        
|INTEREST EXPENSE:                                     |  |                                               |         |      |   |         |  |   |        
|Deposits                                              |  |                                               | 95,834  |      |   | 107,692 |  |   | 122,682
|Junior subordinated debentures                        |  |                                               | 3,760   |      |   | 6,439   |  |   | 10,058 
|Securities sold under repurchase agreements           |  |                                               | 1,166   |      |   | 2,388   |  |   | 3,026  
|Other borrowings                                      |  |                                               | 1,753   |      |   | 3,630   |  |   | 4,407  
|                                                      |  |                                               |         |      |   |         |  |   |        
|Total interest expense                                |  |                                               | 102,513 |      |   | 120,149 |  |   | 140,173
|                                                      |  |                                               |         |      |   |         |  |   |        
|NET INTEREST INCOME                                   |  |                                               | 307,101 |      |   | 227,729 |  |   | 200,435
|PROVISION FOR CREDIT LOSSES                           |  |                                               | 28,775  |      |   | 9,867   |  |   | 760    
|                                                      |  |                                               |         |      |   |         |  |   |        
|NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES |  |                                               | 278,326 |      |   | 217,862 |  |   | 199,675
|                                                      |  |                                               |         |      |   |         |  |   |        
|NONINTEREST INCOME:                                   |  |                                               |         |      |   |         |  |   |        
|Service charges on deposit accounts                   |  |                                               | 51,742  |      |   | 45,785  |  |   | 40,937 
|Gain on sale of securities, net                       |  |                                               |        |      |   |        |  |   | 86     
|Other                                                 |  |                                               | 8,355   |      |   | 6,585   |  |   | 11,900 
|                                                      |  |                                               |         |      |   |         |  |   |        
|Total noninterest income                              |  |                                               | 60,097  |      |   | 52,370  |  |   | 52,923 
|                                                      |  |                                               |         |      |   |         |  |   |        
|NONINTEREST EXPENSE:                                  |  |                                               |         |      |   |         |  |   |        
|Salaries and employee benefits                        |  |                                               | 84,396  |      |   | 70,818  |  |   | 63,910 
|Net occupancy expense                                 |  |                                               | 14,910  |      |   | 12,469  |  |   | 10,534 
|Data processing                                       |  |                                               | 6,449   |      |   | 5,580   |  |   | 4,570  
|Core deposit intangibles amortization                 |  |                                               | 10,076  |      |   | 9,797   |  |   | 9,917  
|Depreciation expense                                  |  |                                               | 8,226   |      |   | 7,666   |  |   | 7,611  
|Impairment write-down on securities                   |  |                                               |        |      |   | 14,025  |  |   | 9,975  
|Other                                                 |  |                                               | 45,643  |      |   | 23,441  |  |   | 20,326 
|                                                      |  |                                               |         |      |   |         |  |   |        
|Total noninterest expense                             |  |                                               | 169,700 |      |   | 143,796 |  |   | 126,843
|                                                      |  |                                               |         |      |   |         |  |   |        
|INCOME BEFORE INCOME TAXES                            |  |                                               | 168,723 |      |   | 126,436 |  |   | 125,755
|PROVISION FOR INCOME TAXES                            |  |                                               | 56,844  |      |   | 41,929  |  |   | 41,604 
|                                                      |  |                                               |         |      |   |         |  |   |        
|NET INCOME                                            |  | $                                             | 111,879 |      | $ | 84,507  |  | $ | 84,151 
|                                                      |  |                                               |         |      |   |         |  |   |        
|EARNINGS PER SHARE:                                   |  |                                               |         |      |   |         |  |   |        
|Basic                                                 |  | $                                             | 2.42    |      | $ | 1.87    |  | $ | 1.96   
|                                                      |  |                                               |         |      |   |         |  |   |        
|Diluted                                               |  | $                                             | 2.41    |      | $ | 1.86    |  | $ | 1.94   
|                                                      |  |                                               |         |      |   |         |  |   |        

See notes to consolidated financial statements.



77



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##### Table of Contents

##### Index to Financial Statements

PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS EQUITY



|                                                                                                 |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|------------------------------------------------------------------------------------------------ |  | ----------------------------------------------- |  | -------------- | ------ | ---------------- | - | ------- | ------------------------------------------ | - | ------- | ------------- |  | - | ------------------------ | - |  | - | ---- | - |  | - | --------- | -
|                                                                                                 |  | Common Stock                                    |  | CapitalSurplus |        | RetainedEarnings |   |         | AccumulatedOtherComprehensiveIncome (Loss) |   |         | TreasuryStock |  |   | TotalShareholdersEquity |  
|                                                                                                 |  | Shares                                          |  | Amount         |        |                  |   |         |                                           
|                                                                                                 |  | (In thousands, except share and per share data) | 
|BALANCE AT DECEMBER 31, 2006                                                                     |  | 32,829,873                                      |  | $              | 32,830 |                  | $ | 425,557 |                                            | $ | 209,581 |               |  | $ | (2,950                   | ) |  | $ | (607 | ) |  | $ | 664,411   |  
|Comprehensive Income:                                                                            |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|Net income                                                                                       |  |                                                 |  |                |        |                  |   |         |                                            |   | 84,151  |               |  |   |                          |   |  |   |      |   |  |   | 84,151    |  
|Net change in unrealized gain on available for sale securities (net of tax of $2,351)            |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   | 4,367                    |   |  |   |      |   |  |   | 4,367     |  
|                                                                                                 |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|Total comprehensive income                                                                       |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 88,518    |  
|Common stock issued in connection with the exercise of stock options and restricted stock awards |  | 337,148                                         |  |                | 337    |                  |   | 3,148   |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 3,485     |  
|Common stock issued in connection with the TXUI acquisition                                      |  | 10,769,942                                      |  |                | 10,770 |                  |   | 370,116 |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 380,886   |  
|Common stock issued in connection with the Bank of Navasota acquisition                          |  | 251,360                                         |  |                | 251    |                  |   | 8,237   |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 8,488     |  
|Stock based compensation expense                                                                 |  |                                                 |  |                |        |                  |   | 1,968   |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 1,968     |  
|Cash dividends declared, $0.425 per share                                                        |  |                                                 |  |                |        |                  |   |         |                                            |   | (20,325 | )             |  |   |                          |   |  |   |      |   |  |   | (20,325   | )
|                                                                                                 |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|BALANCE AT DECEMBER 31, 2007                                                                     |  | 44,188,323                                      |  |                | 44,188 |                  |   | 809,026 |                                            |   | 273,407 |               |  |   | 1,417                    |   |  |   | (607 | ) |  |   | 1,127,431 |  
|Cumulative effectsplit dollar insurance adjustment                                              |  |                                                 |  |                |        |                  |   |         |                                            |   | (2,174  | )             |  |   |                          |   |  |   |      |   |  |   | (2,174    | )
|Comprehensive income:                                                                            |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|Net income                                                                                       |  |                                                 |  |                |        |                  |   |         |                                            |   | 84,507  |               |  |   |                          |   |  |   |      |   |  |   | 84,507    |  
|Net change in unrealized gain on available for sale securities (net of tax of $4,542)            |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   | 8,436                    |   |  |   |      |   |  |   | 8,436     |  
|                                                                                                 |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|Total comprehensive income                                                                       |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 92,943    |  
|Common stock issued in connection with the 1st Choice acquisition                                |  | 1,757,752                                       |  |                | 1,758  |                  |   | 54,385  |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 56,143    |  
|Common stock issued in connection with the exercise of stock options and restricted stock awards |  | 170,726                                         |  |                | 171    |                  |   | 2,427   |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 2,598     |  
|Stock based compensation expense                                                                 |  |                                                 |  |                |        |                  |   | 1,542   |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 1,542     |  
|Cash dividends declared, $0.513 per share                                                        |  |                                                 |  |                |        |                  |   |         |                                            |   | (23,377 | )             |  |   |                          |   |  |   |      |   |  |   | (23,377   | )
|                                                                                                 |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|BALANCE AT DECEMBER 31, 2008                                                                     |  | 46,116,801                                      |  |                | 46,117 |                  |   | 867,380 |                                            |   | 332,363 |               |  |   | 9,853                    |   |  |   | (607 | ) |  |   | 1,255,106 |  
|Comprehensive income:                                                                            |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|Net income                                                                                       |  |                                                 |  |                |        |                  |   |         |                                            |   | 111,879 |               |  |   |                          |   |  |   |      |   |  |   | 111,879   |  
|Net change in unrealized gain on available for sale securities (net of tax of $3,744)            |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   | 6,953                    |   |  |   |      |   |  |   | 6,953     |  
|                                                                                                 |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|Total comprehensive income                                                                       |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 118,832   |  
|Common stock issued in connection with the exercise of stock options and restricted stock awards |  | 461,167                                         |  |                | 461    |                  |   | 1,565   |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 2,026     |  
|Stock based compensation expense                                                                 |  |                                                 |  |                |        |                  |   | 1,515   |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   | 1,515     |  
|Cash dividends declared, $0.568 per share                                                        |  |                                                 |  |                |        |                  |   |         |                                            |   | (26,234 | )             |  |   |                          |   |  |   |      |   |  |   | (26,234   | )
|                                                                                                 |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  
|BALANCE AT DECEMBER 31, 2009                                                                     |  | 46,577,968                                      |  | $              | 46,578 |                  | $ | 870,460 |                                            | $ | 418,008 |               |  | $ | 16,806                   |   |  | $ | (607 | ) |  | $ | 1,351,245 |  
|                                                                                                 |  |                                                 |  |                |        |                  |   |         |                                            |   |         |               |  |   |                          |   |  |   |      |   |  |   |           |  

See notes to consolidated financial statements.



78



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##### Table of Contents

##### Index to Financial Statements

PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS



|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|----------------------------------------------------------------------------------- |  | -------------------------------- | ---------- | - | ---- | - | ---------- | ---- |  | - | ---------- | -
|                                                                                    |  | For the Years Ended December 31, |           
|                                                                                    |  | 2009                             |            |   | 2008 |   |            | 2007 | 
|                                                                                    |  | (Dollars in thousands)           |           
|CASH FLOWS FROM OPERATING ACTIVITIES:                                               |  |                                  |            |   |      |   |            |      |  |   |            |  
|Net income                                                                          |  | $                                | 111,879    |   |      | $ | 84,507     |      |  | $ | 84,151     |  
|Adjustments to reconcile net income to net cash provided by operating activities:   |  |                                  |            |   |      |   |            |      |  |   |            |  
|Depreciation and amortization                                                       |  |                                  | 18,302     |   |      |   | 17,463     |      |  |   | 17,528     |  
|Provision for credit losses                                                         |  |                                  | 28,775     |   |      |   | 9,867      |      |  |   | 760        |  
|Net accretion (amortization) of premium/discount on investments                     |  |                                  | 930        |   |      |   | (3,181     | )    |  |   | (7,279     | )
|(Gain) loss on sale or write down of premises, equipment and other real estate      |  |                                  | (623       | ) |      |   | 1,487      |      |  |   | (819       | )
|Gain on sale of loans held for sale                                                 |  |                                  |           |   |      |   | (229       | )    |  |   | (1,334     | )
|Gain on sale of securities                                                          |  |                                  |           |   |      |   |           |      |  |   | (86        | )
|Impairment write-down of securities                                                 |  |                                  |           |   |      |   | 14,025     |      |  |   | 9,975      |  
|Net amortization of premium on loans and deposits                                   |  |                                  | (6,917     | ) |      |   | (2,010     | )    |  |   | (1,264     | )
|Funding of loans held for sale                                                      |  |                                  |           |   |      |   |           |      |  |   | (52,258    | )
|Proceeds from sale of loans held for sale                                           |  |                                  | 99         |   |      |   | 11,076     |      |  |   | 165,488    |  
|Stock based compensation expense                                                    |  |                                  | 1,515      |   |      |   | 1,542      |      |  |   | 1,968      |  
|(Increase) decrease in accrued interest receivable and other assets                 |  |                                  | (31,290    | ) |      |   | (8,315     | )    |  |   | 23,690     |  
|Decrease in accrued interest payable and other liabilities                          |  |                                  | (49,042    | ) |      |   | (2,552     | )    |  |   | (4,444     | )
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|Net cash provided by operating activities                                           |  |                                  | 73,628     |   |      |   | 123,680    |      |  |   | 236,076    |  
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|CASH FLOWS FROM INVESTING ACTIVITIES:                                               |  |                                  |            |   |      |   |            |      |  |   |            |  
|Proceeds from maturities and principal paydowns of held to maturity securities      |  |                                  | 898,293    |   |      |   | 548,960    |      |  |   | 304,964    |  
|Purchase of held to maturity securities                                             |  |                                  | (1,076,085 | ) |      |   | (2,274,872 | )    |  |   | (603,605   | )
|Proceeds from maturities and principal paydowns of available for sale securities    |  |                                  | 829,639    |   |      |   | 594,317    |      |  |   | 1,014,952  |  
|Proceeds from the sales of available for sale securities                            |  |                                  |           |   |      |   |           |      |  |   | 722,904    |  
|Purchase of available for sale securities                                           |  |                                  | (599,999   | ) |      |   | (789,735   | )    |  |   | (1,434,953 | )
|Net decrease (increase) in loans held for investment                                |  |                                  | 148,533    |   |      |   | (257,334   | )    |  |   | 137,802    |  
|Purchase of bank premises and equipment                                             |  |                                  | (34,974    | ) |      |   | (7,901     | )    |  |   | (7,175     | )
|Proceeds from sale of bank premises, equipment and other real estate                |  |                                  | 27,697     |   |      |   | 20,416     |      |  |   | 9,132      |  
|Purchase of Banco Popular branches                                                  |  |                                  | (50        | ) |      |   | (437       | )    |  |   |           |  
|Net cash acquired in the purchase of Banco Popular branches                         |  |                                  |           |   |      |   | 112,788    |      |  |   |           |  
|Purchase of 1st Choice Bancorp, Inc.                                                |  |                                  | (17        | ) |      |   | (19,230    | )    |  |   |           |  
|Cash and cash equivalents acquired in the purchase of 1st Choice Bancorp, Inc.      |  |                                  |           |   |      |   | 84,240     |      |  |   |           |  
|Cash and cash equivalents acquired in the Franklin Bank acquisition.                |  |                                  |           |   |      |   | 3,953,125  |      |  |   |           |  
|Purchase of assets of Franklin Bank.                                                |  |                                  | (865       | ) |      |   | (724,262   | )    |  |   |           |  
|Premium paid for deposits of Franklin Bank.                                         |  |                                  |           |   |      |   | (60,918    | )    |  |   |           |  
|Purchase of Texas United Bancshares, Inc                                            |  |                                  |           |   |      |   | (70        | )    |  |   | (2,152     | )
|Cash and cash equivalents acquired in the purchase of Texas United Bancshares, Inc. |  |                                  |           |   |      |   |           |      |  |   | 114,469    |  
|Purchase of the Bank of Navasota                                                    |  |                                  |           |   |      |   |           |      |  |   | (8,858     | )
|Cash and cash equivalents acquired in the purchase of the Bank of Navasota          |  |                                  |           |   |      |   |           |      |  |   | 19,175     |  
|Net decrease in interest-bearing deposits in financial institutions                 |  |                                  | 106        |   |      |   | 429        |      |  |   | 197        |  
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|Net cash provided by investing activities                                           |  |                                  | 192,278    |   |      |   | 1,179,516  |      |  |   | 266,852    |  
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|CASH FLOWS FROM FINANCING ACTIVITIES:                                               |  |                                  |            |   |      |   |            |      |  |   |            |  
|Net decrease in noninterest-bearing deposits                                        |  |                                  | (33,187    | ) |      |   | (151,101   | )    |  |   | (78,238    | )
|Net decrease in interest-bearing deposits                                           |  |                                  | (15,151    | ) |      |   | (1,456,412 | )    |  |   | (72,384    | )
|(Repayments of) proceeds from other short-term borrowings                           |  |                                  | (200,000   | ) |      |   | 200,000    |      |  |   | (212,809   | )
|Repayments of other long-term borrowings                                            |  |                                  | (3,255     | ) |      |   | (2,071     | )    |  |   | (9,973     | )
|Net (decrease) increase in securities sold under repurchase agreements              |  |                                  | (23,421    | ) |      |   | 5,330      |      |  |   | 21,160     |  
|Redemption of junior subordinated debentures                                        |  |                                  |           |   |      |   | (20,620    | )    |  |   | (32,475    | )
|Proceeds from stock option exercises                                                |  |                                  | 2,026      |   |      |   | 2,598      |      |  |   | 3,485      |  
|Payments of cash dividends                                                          |  |                                  | (26,234    | ) |      |   | (23,377    | )    |  |   | (20,325    | )
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|Net cash used in financing activities                                               |  |                                  | (299,222   | ) |      |   | (1,445,653 | )    |  |   | (401,559   | )
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS                                |  |                                  | (33,316    | ) |      |   | (142,457   | )    |  |   | 101,369    |  
|CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD                                      |  |                                  | 228,633    |   |      |   | 371,090    |      |  |   | 269,721    |  
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|CASH AND CASH EQUIVALENTS, END OF PERIOD                                            |  | $                                | 195,317    |   |      | $ | 228,633    |      |  | $ | 371,090    |  
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|NONCASH ACTIVITIES:                                                                 |  |                                  |            |   |      |   |            |      |  |   |            |  
|Stock issued in connection with the 1st Choice Bancorp, Inc. acquisition            |  | $                                |           |   |      | $ | 56,143     |      |  | $ |           |  
|Stock issued in connection with the Texas United Bancshares, Inc. acquisition       |  |                                  |           |   |      |   |           |      |  |   | 380,886    |  
|Stock issued in connection with the Bank of Navasota acquisition                    |  |                                  |           |   |      |   |           |      |  |   | 8,488      |  
|SUPPLEMENTAL INFORMATION:                                                           |  |                                  |            |   |      |   |            |      |  |   |            |  
|Income taxes paid                                                                   |  |                                  | 61,100     |   |      |   | 37,100     |      |  |   | 34,400     |  
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  
|Interest paid                                                                       |  | $                                | 109,795    |   |      | $ | 144,677    |      |  | $ | 140,268    |  
|                                                                                    |  |                                  |            |   |      |   |            |      |  |   |            |  

See notes to consolidated financial statements.



79



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##### Table of Contents

##### Index to Financial Statements

PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. NATURE
OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES

Nature of
OperationsProsperity Bancshares, Inc.® (Bancshares) and its subsidiaries, Prosperity
Holdings of Delaware, LLC (Holdings) and Prosperity Bank® (the Bank, and together with
Bancshares and Holdings, collectively referred to as the Company) provide retail and commercial banking services. The Company operates its business as one domestic segment.

The Bank operates one hundred fifty-eight (158) full-service banking locations; with fifty-one (51) in the Houston area,
twenty-seven (27) in the South Texas area including Corpus Christi and Victoria, twenty-seven (27) in the Central Texas area including Austin and San Antonio, twenty (20) in East Texas, twenty-four (24) in the Dallas/Fort Worth,
Texas area and nine (9) in the Bryan/College Station area.

Accounting Standards CodificationThe Financial
Accounting Standards Boards (FASB) Accounting Standards Codification (ASC) became effective on July 1, 2009. At that date, the ASC became FASBs officially recognized source of authoritative U.S. generally
accepted accounting principles (GAAP) applicable to all public and non-public non-governmental entities, superseding existing FASB, American Institute of Certified Public Accountants Emerging Issues Task Force and related literature. Rules and
interpretive releases of the SEC under the authority of federal securities laws are also sources of authoritative GAAP for SEC registrants. All other accounting literature is considered non-authoritative. The switch to the ASC affects the way
companies refer to U.S. GAAP in financial statements and accounting policies. Citing particular content in the ASC involves specifying the unique numeric path to the content through the Topic, Subtopic, Section and Paragraph structure.

Principles of ConsolidationThe consolidated financial statements include the accounts of Bancshares and its wholly owned
subsidiaries. All intercompany transactions have been eliminated in consolidation. The accounting and reporting policies of the Company conform to accounting principles generally accepted in the United States of America (GAAP) and the
prevailing practices within the banking industry. A summary of significant accounting and reporting policies is as follows:

Use of EstimatesThe preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent
assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Such estimates include, but are not limited to, the calculation of stock-based compensation and the
allowance for credit losses as well as the valuation of goodwill and available for sale securities. Actual results could differ from these estimates.

SecuritiesSecurities held to maturity are carried at cost, adjusted for the amortization of premiums and the accretion of discounts. Management has the positive intent and the Company has the
ability to hold these assets as long-term securities until their estimated maturities.

Securities available for sale are
carried at fair value. Unrealized gains and losses are excluded from earnings and reported, net of tax, as a separate component of shareholders equity until realized. Securities within the available for sale portfolio may be used as part of
the Companys asset/liability strategy and may be sold in response to changes in interest risk, prepayment risk or other similar economic factors.

Net other-than-temporary impairment (OTTI) losses on individual investment securities are recognized as a realized loss through earnings when it is more likely than not that the Company will
not collect all of the contractual cash flows or is unable to hold the securities to recovery.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



For debt securities that are considered other-than-temporarily impaired and that the
Company does not intend to sell and will not be required to sell prior to recovery of its amortized cost basis, OTTI is separated into the amount that is credit-related and the amount that is due to all other factors. The credit loss component is
recognized in earnings and is the difference between a securitys amortized cost basis and the present value of expected future cash flows discounted at the securitys effective interest rate. The amount due to all other factors is
recognized in other comprehensive income.

Premiums and discounts are amortized and accreted to operations using the
level-yield method of accounting, adjusted for prepayments as applicable. The specific identification method of accounting is used to compute gains or losses on the sales of these assets. Interest earned on these assets is included in interest
income.

Loans Held for InvestmentLoans are stated at the principal amount outstanding, net of unearned discount
and fees. Unearned discount relates principally to consumer installment loans. The related interest income for multipayment loans is recognized principally by the simple interest method; for single payment loans, such income is recognized using the
straight-line method.

Nonrefundable Fees and Costs Associated with Lending ActivitiesLoan origination fees in
excess of the associated costs are recognized over the life of the related loan as an adjustment to yield using the interest method.

Loan commitment fees and loan origination costs are deferred and recognized as an adjustment of yield by the interest method over the related loan life or, if the commitment expires unexercised, recognized in income upon expiration of the
commitment.

Nonperforming and Past Due LoansIncluded in the nonperforming loan category are loans which have
been categorized by management as nonaccrual because collection of interest is doubtful and loans which have been restructured to provide a reduction in the interest rate or a deferral of interest or principal payments. When the payment of principal
or interest on a loan is delinquent for 90 days, or earlier in some cases, the loan is placed on nonaccrual status unless the loan is in the process of collection and the underlying collateral fully supports the carrying value of the loan. If the
decision is made to continue accruing interest on the loan, periodic reviews are made to confirm the accruing status of the loan. When a loan is placed on nonaccrual status, interest accrued during the current year prior to the judgment of
uncollectibility is charged to operations. Interest accrued during prior periods is charged to the allowance for credit losses. Any payments received on nonaccrual loans are applied first to outstanding loan amounts and next to the recovery of
charged-off loan amounts. Any excess is treated as recovery of lost interest.

Restructured loans are those loans on which
concessions in terms have been granted because of a borrowers financial difficulty. Interest is generally accrued on such loans in accordance with the new terms.

Allowance for Credit LossesThe allowance for credit losses is a valuation allowance available for losses incurred on loans. All losses are charged to the allowance when the loss actually
occurs or when a determination is made that such a loss is probable. Recoveries are credited to the allowance at the time of recovery.

Throughout the year, management estimates the probable level of losses to determine whether the allowance for credit losses is adequate to absorb losses inherent in the loan portfolio. Based on these estimates, an amount is charged to the
provision for credit losses and credited to the allowance for credit losses in order to adjust the allowance to a level determined to be adequate to absorb losses.

In making its evaluation of the adequacy of the allowance for credit losses, management considers factors such as historical loan loss experience, industry diversification of the Companys commercial
loan portfolio, the



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



amount of nonperforming assets and related collateral, the volume, growth and composition of the Companys loan portfolio, current economic conditions that may affect the borrowers
ability to pay and the value of collateral, the evaluation of the Companys loan portfolio through its internal loan review process and other relevant factors.

Estimates of credit losses involve an exercise of judgment. While it is possible that in the short term the Company may sustain losses which are substantial in relation to the allowance for credit losses,
it is the judgment of management that the allowance for credit losses reflected in the consolidated balance sheets is adequate to absorb probable losses that exist in the current loan portfolio.

The Companys allowance for credit losses consists of two elements: (i) specific valuation allowances determined in accordance
with ASC Topic 310, Receivables based on probable losses on specific loans; and (ii) a general valuation allowance based on historical loan loss experience, general economic conditions and other qualitative risk factors both
internal and external to the Company in accordance with ASC Topic 450. A loan is defined as impaired by ASC Topic 310 if, based on current information and events, it is probable that a creditor will be unable to collect all amounts due, both
interest and principal, according to the contractual terms of the loan agreement. Specifically, ASC Topic 310 requires that the allowance for credit losses related to impaired loans be determined based on the difference of carrying value of loans
and the present value of expected cash flows discounted at the loans effective interest rate or, as a practical expedient, the loans observable market price or the fair value of the collateral if the loan is collateral dependent. At
December 31, 2009, the Company had $6.1 million in nonaccrual loans, $2.3 million in 90 days or more past due loans and no restructured loans. At December 31, 2008, the Company had $2.1 million in nonaccrual loans, $7.6 million in 90 days
or more past due loans and no restructured loans. The recorded investment in impaired loans was $21.7 million and $12.8 million at December 31, 2009 and 2008, respectively. Such impaired loans required an allowance for credit losses of
$5.4 million and $3.5 million at December 31, 2009 and 2008, respectively. Interest revenue received on impaired loans is either applied against principal or realized as interest revenue, according to managements judgment as to the
collectibility of principal.

Premises and EquipmentPremises and equipment are carried at cost less accumulated
depreciation. Depreciation expense is computed principally using the straight-line method over the estimated useful lives of the assets which range from three to 30 years. Leasehold improvements are amortized using the straight-line method over the
periods of the leases or the estimated useful lives, whichever is shorter.

GoodwillGoodwill is annually assessed
for impairment or when events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. The Company bases its evaluation on such impairment factors as the nature of the assets, the future economic benefit of
the assets, any historical or future profitability measurements, as well as other external market conditions or factors that may be present.

Amortization of Core Deposit IntangiblesCore deposit intangibles are amortized using an accelerated amortization method over an 8 to 10 year period.

Income TaxesBancshares files a consolidated federal income tax return.

Deferred tax assets and liabilities are recognized for the estimated tax consequences attributable to differences between the financial
statement carrying amounts of existing assets and liabilities and their respective tax basis.

Effective January 1, 2008,
the Company adopted the provisions of FASB Codification Topic 740: Income Taxes, which discusses the accounting for uncertainty in income taxes recognized in an entitys financial



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



statements. U.S. GAAP also prescribes a specified recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be
taken in a tax return, as well as, provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure, and transition.

Stock-Based CompensationThe Company accounts for stock-based employee compensation plans using the fair value-based method of accounting in accordance with FASB ASC Topic 718, Stock
Compensation.ASC Topic 718 was effective for companies in 2006, however, the Company has been recognizing stock-based compensation expense since January 1, 2003. The Companys results of operations reflect compensation expense for all
employee stock-based compensation, including the unvested portion of stock options granted prior to 2003. ASC Topic 718 requires that management make assumptions including stock price volatility and employee turnover that are utilized to measure
compensation expense. The fair value of stock options granted is estimated at the date of grant using the Black-Scholes option-pricing model. This model requires the input of subjective assumptions (see note 13).

Cash and Cash EquivalentsFor purposes of reporting cash flows, cash and cash equivalents include cash and due from banks as
well as federal funds sold that mature in three days or less.

Earnings Per ShareOn January 1, 2009, the
Company adopted new authoritative accounting guidance under ASC Topic 260, Earnings Per Share, which 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.

ASC Topic 260, Earnings Per Share requires presentation of basic and diluted earnings per share. Under the two-class method, basic earnings per common share is computed by dividing net
earnings allocated to common stock by the weighted-average number of common shares outstanding during the applicable period, excluding outstanding participating securities. Diluted earnings per common share is computed using the weighted-average
number of shares determined for the basic earnings per common share computation plus the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock using the treasury
stock method.

Net income per common share for all periods presented has been calculated in accordance with ASC Topic 260.
Outstanding stock options issued by the Company represent the only dilutive effect reflected in diluted weighted average shares.

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



|                                      |  |                                       |         |                 |   |        |  |                 |        |        |   |                 |  |   |        |  |   |     
|------------------------------------- |  | ------------------------------------- | ------- | --------------- | - | ------ |  | --------------- | ------ | ------ | - | --------------- |  | - | ------ |  | - | ----
|                                      |  | December 31,                         
|                                      |  | 2009                                  |         | 2008            |   | 2007  
|                                      |  | Amount                                |         | Per ShareAmount |   | Amount |  | Per ShareAmount |        | Amount |   | Per ShareAmount
|                                      |  | (In thousands, except per share data)
|Net income                            |  | $                                     | 111,879 |                 |   |        |  | $               | 84,507 |        |   |                 |  | $ | 84,151 |  |   |     
|Basic:                                |  |                                       |         |                 |   |        |  |                 |        |        |   |                 |  |   |        |  |   |     
|Weighted average shares outstanding   |  |                                       | 46,177  |                 | $ | 2.42   |  |                 | 45,300 |        | $ | 1.87            |  |   | 42,928 |  | $ | 1.96
|                                      |  |                                       |         |                 |   |        |  |                 |        |        |   |                 |  |   |        |  |   |     
|Diluted:                              |  |                                       |         |                 |   |        |  |                 |        |        |   |                 |  |   |        |  |   |     
|Weighted average shares outstanding   |  |                                       | 46,177  |                 |   |        |  |                 | 45,300 |        |   |                 |  |   | 42,928 |  |   |     
|Effect of dilutive securitiesoptions |  |                                       | 177     |                 |   |        |  |                 | 179    |        |   |                 |  |   | 382    |  |   |     
|                                      |  |                                       |         |                 |   |        |  |                 |        |        |   |                 |  |   |        |  |   |     
|Total                                 |  |                                       | 46,354  |                 | $ | 2.41   |  |                 | 45,479 |        | $ | 1.86            |  |   | 43,310 |  | $ | 1.94
|                                      |  |                                       |         |                 |   |        |  |                 |        |        |   |                 |  |   |        |  |   |     



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The incremental shares for the assumed exercise of the outstanding options were
determined by application of the treasury stock method. There were no stock options exercisable at December 31, 2009, 2008 and 2007 that would have had an anti-dilutive effect on the above computation.

New Accounting Standards

As discussed in Note 1Accounting Standards Codification, on July 1, 2009, the Accounting Standards Codification became FASBs officially recognized source of authoritative U.S. generally
accepted accounting principles applicable to all public and non-public non-governmental entities, superseding existing FASB, AICPA, EITF and related literature. Rules and interpretive releases of the SEC under the authority of federal securities
laws are also sources of authoritative GAAP for SEC registrants. All other accounting literature is considered non-authoritive. The switch to the ASC affects the way companies refer to U.S. GAAP in financial statements and accounting policies.
Citing particular content in the ASC involves specifying the unique numeric path to the content through the Topic, Subtopic, Section and Paragraph structure.

FASB ASC Topic 260, Earnings Per Share.On January 1, 2009, the Company adopted new authoritative accounting guidance under ASC Topic 260 which 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.

ASC Topic 260 requires presentation of basic and diluted earnings per share. Under the two-class method, basic earnings per
common share is computed by dividing net earnings allocated to common stock by the weighted-average number of common shares outstanding during the applicable period, excluding outstanding participating securities. Diluted earnings per common share
is computed using the weighted-average number of shares determined for the basic earnings per common share computation plus the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted
into common stock using the treasury stock method.

FASB ASC Topic 320, InvestmentsDebt and Equity
Securities. New authoritative accounting guidance under ASC Topic 320 (i) changes existing guidance for determining whether an impairment is other than temporary to debt securities and (ii) replaces the existing requirement
that the entitys management assert it has both the intent and ability to hold an impaired security until recovery with a requirement that management assert: (a) it does not have the intent to sell the security; and (b) it is more
likely than not it will not have to sell the security before recovery of its cost basis. Under ASC Topic 320, declines in the 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. The Company adopted the provisions of
the new authoritative accounting guidance under ASC Topic 320 during the first quarter of 2009. Adoption of the new guidance did not significantly impact the Companys financial statements.

FASB ASC Topic 805, Business Combinations. On January 1, 2009, new authoritative accounting guidance under ASC Topic
805 became applicable to the Companys accounting for business combinations closing on or after January 1, 2009. ASC Topic 805 applies to all transactions and other events in which one entity obtains control over one or more other
businesses. ASC Topic 805 requires an acquirer, upon initially obtaining control of another entity, to recognize the assets, liabilities and any non-controlling interest in the acquiree at fair value as of the acquisition date. Contingent
consideration is required to be recognized and measured at fair value on the date of acquisition rather than at a later date when the amount of that consideration may be determinable beyond a reasonable doubt. This fair value approach replaces the
cost-allocation process required under previous accounting guidance whereby the cost of an acquisition was allocated to the individual assets acquired and liabilities assumed based on their estimated fair value. ASC Topic 805 requires acquirers to



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



expense acquisition-related costs as incurred rather than allocating such costs to the assets acquired and liabilities assumed, as was previously the case under prior accounting guidance. Assets
acquired and liabilities assumed in a business combination that arise from contingencies are to be recognized at fair value if fair value can be reasonably estimated. If fair value of such an asset or liability cannot be reasonably estimated, the
asset or liability would generally be recognized in accordance with ASC Topic 450. Under ASC Topic 805, the requirements of ASC Topic 420, Exit or Disposal Cost Obligations, would have to be met in order to accrue for a restructuring
plan in purchase accounting. Pre-acquisition contingencies are to be recognized at fair value, unless it is a non-contractual contingency that is not likely to materialize, in which case, nothing should be recognized in purchase accounting and,
instead, that contingency would be subject to the probable and estimable recognition criteria of ASC Topic 450. Adoption of the new guidance will have a significant impact on the Companys accounting for business combinations closing on or
after January 1, 2009.

FASB ASC Topic 810, Consolidation. New authoritative accounting guidance
under ASC Topic 810 amended prior guidance to establish accounting and reporting standards for the non-controlling interest in a subsidiary and for the deconsolidation of a subsidiary. Under ASC Topic 810, a non-controlling interest in a
subsidiary, which is sometimes referred to as minority interest, is an ownership interest in the consolidated entity that should be reported as a component of equity in the consolidated financial statements. Among other requirements, ASC
Topic 810 requires consolidated net income to be reported at amounts that include the amounts attributable to both the parent and the non-controlling interest. It also requires disclosure, on the face of the consolidated income statement, of
the amounts of consolidated net income attributable to the parent and to the non-controlling interest. The new authoritative accounting guidance under ASC Topic 810 became effective for the Company on January 1, 2009 and did not have a
significant impact on the Companys financial statements.

Further new authoritative accounting guidance under ASC
Topic 810 amends prior guidance to change how a company determines when an entity that is insufficiently capitalized or is not controlled through voting (or similar rights) should be consolidated. The determination of whether a company is
required to consolidate an entity is based on, among other things, an entitys purpose and design and a companys ability to direct the activities of the entity that most significantly impact the entitys economic performance. The new
authoritative accounting guidance requires additional disclosures about the reporting entitys involvement with variable-interest entities and any significant changes in risk exposure due to that involvement as well as its affect on the
entitys financial statements. The new authoritative accounting guidance under ASC Topic 810 will be effective January 1, 2010 and is not expected to have a significant impact on the Companys financial statements.

FASB ASC Topic 820.ASC Topic 820, Fair Value Measurements and Disclosures, defines fair value, establishes a
framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value measurements. The provisions of ASC Topic 820 became effective for the Company on January 1, 2008 for financial assets
and financial liabilities and on January 1, 2009 for non-financial assets and non-financial liabilities (see Note 8Fair Value).

Additional new authoritative accounting guidance under ASC Topic 820 affirms that the objective of fair value when the market for an asset is not active is the price that would be received to sell
the asset in an orderly transaction, and clarifies and includes additional factors for determining whether there has been a significant decrease in market activity for an asset when the market for that asset is not active. ASC Topic 820
requires an entity to base its conclusion about whether a transaction was not orderly on the weight of the evidence. The new accounting guidance amended prior guidance to expand certain disclosure requirements. The Company adopted the new
authoritative accounting guidance under ASC Topic 820 during the first quarter of 2009. Adoption of the new guidance did not significantly impact the Companys financial statements.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Further new authoritative accounting guidance under ASC Topic 820 provides guidance
for measuring the fair value of a liability in circumstances in which a quoted price in an active market for the identical liability is not available. In such instances, a reporting entity is required to measure fair value utilizing a valuation
technique that uses (i) the quoted price of the identical liability when traded as an asset, (ii) quoted prices for similar liabilities or similar liabilities when traded as assets, or (iii) another valuation technique that is
consistent with the existing principles of ASC Topic 820, such as an income approach or market approach. The new authoritative accounting guidance also clarifies that when estimating the fair value of a liability, a reporting entity is not
required to include a separate input or adjustment to other inputs relating to the existence of a restriction that prevents the transfer of the liability. The forgoing new authoritative accounting guidance under ASC Topic 820 became effective
for the Companys financial statements for periods ending after October 1, 2009 and did not have a significant impact on the Companys financial statements.

FASB ASC Topic 825.New authoritative accounting guidance under ASC Topic 825, Financial Instruments, requires an entity
to provide disclosures about the fair value of financial instruments in interim financial information and amends prior guidance to require those disclosures in summarized financial information at interim reporting periods. The new interim
disclosures required under ASC Topic 825 are included in Note 8Fair Value.

FASB ASC Topic 855.New authoritative
accounting guidance under ASC Topic 855, Subsequent Events, establishes general standards of accounting for and disclosure of events that occur after the balance sheet date but before financial statements are issued or available to be
issued. ASC Topic 855 defines (i) the period after the balance sheet date during which a reporting entitys management should evaluate events or transactions that may occur for potential recognition or disclosure in the financial
statements, (ii) the circumstances under which an entity should recognize events or transactions occurring after the balance sheet date in its financial statements, and (iii) the disclosures an entity should make about events or
transactions that occurred after the balance sheet date. The new authoritative accounting guidance under ASC Topic 855 became effective for the Companys financial statements for periods ending after June 15, 2009 and did not have a
significant impact on the Companys financial statements.

FASB ASC Topic 860.New authoritative accounting
guidance under ASC Topic 860, Transfers and Servicing, amends prior accounting guidance to enhance reporting about transfers of financial assets, including securitizations, and where companies have continuing exposure to the risks
related to transferred financial assets. The new authoritative accounting guidance eliminates the concept of a qualifying special-purpose entity and changes the requirements for derecognizing financial assets. The new authoritative
accounting guidance also requires additional disclosures about all continuing involvements with transferred financial assets including information about gains and losses resulting from transfers during the period. The new authoritative accounting
guidance under ASC Topic 860 will be effective January 1, 2010 and is not expected to have a significant impact on the Companys financial statements.

2. ACQUISITIONS

Acquisitions are an integral part of the Companys growth strategy. All acquisitions were accounted for using the purchase method of accounting. Accordingly, the assets and liabilities of the
acquired entities were recorded at their fair values at the acquisition date. The excess of the purchase price over the estimated fair value of the net assets for each acquisition was recorded as goodwill, none of which is deductible for tax
purposes. The identified core deposit intangibles for each acquisition are being amortized using an accelerated amortization method over an 8 to 10 year life. The results of operations for each acquisition have been included in the Companys
consolidated financial results beginning on the respective acquisition date. The following acquisitions were completed on the dates indicated:



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The Company had no acquisitions in 2009.

On January 10, 2008, the Company completed its acquisition of six (6) Houston banking centers from Banco Popular North America. In
connection with the acquisition, the Company assumed approximately $125.0 million in deposits. In the second quarter of 2008, one banking center was closed and consolidated with a nearby Company banking center. The Company paid a premium of $13.0
million or 10.1% to assume the deposits of Banco Popular.

In connection with the purchase, the Company recorded a premium of
$14.4 million, of which $1.3 million was identified as core deposit intangibles. The remaining $13.1 million of the premium was recorded as goodwill.

On June 1, 2008, the Company completed its acquisition of 1st Choice Bancorp, Inc and its wholly-owned subsidiary, 1st Choice Bank. 1st Choice operated two (2) banking offices in Houston, Texas,
with one location in South Houston and another in the Heights area. The Companys Heights banking center was consolidated with the 1st Choice Heights location, with the resulting banking center being located in 1st Choices Heights banking
office. As of March 31, 2008, 1st Choice had, on a consolidated basis, total assets of $313.9 million, loans of $198.9 million, deposits of $285.1 million and stockholders equity of $27.5 million. Under the terms of the definitive
agreement, Prosperity issued 1,757,752 shares of Prosperity common stock plus approximately $18,758,000 in cash for all outstanding shares of 1st Choice.

In connection with the purchase, the Company recorded a premium of $51.1 million, of which $637,000 was identified as core deposit intangibles. The remaining $50.5 million of the premium was recorded as
goodwill.

On November 7, 2008, the Bank assumed approximately $3.6 billion of deposits and acquired certain assets from
the FDIC, acting in its capacity as receiver for Franklin Bank (the Franklin acquisition or the Franklin Bank acquisition). The FDIC entered into a purchase and assumption agreement with the Bank, in which the Bank paid a
premium of $60.9 million to ensure that all deposits of Franklin Bank, both insured and uninsured, were transferred to it. Under terms of the purchase and assumption agreement, the Bank acquired certain assets from the FDIC, including approximately
$350 million in U.S. Treasury and Agency Securities and approximately $360 million in performing loans. The remaining net proceeds from deposits assumed in the transaction were predominately invested in mortgage backed securities primarily issued by
federal government agencies such as Ginnie Mae, Freddie Mac and Fannie Mae.

While Franklin Bank operated forty-five
(45) full service banking offices, the Company currently operates thirty-three (33) of these locations. The former Franklin Bank locations closed were consolidated into nearby Company banking centers.

In connection with the purchase, the Company recorded a premium of $70.8 million, of which $7.3 million was identified as core deposit
intangibles. The remaining $63.5 million of the premium was recorded as goodwill.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The following condensed statement of net liabilities acquired reflects the value
assigned to the Franklin Bank net liabilities as of November 7, 2008.



|                                               |  |                       |          
|---------------------------------------------- |  | --------------------- | ---------
|                                               |  | As of November 7,2008
|ASSETS:                                        |  |                       |          
|Cash and due from banks                        |  | $                     | 360,978  
|Securities                                     |  |                       | 346,218  
|Loans(1)                                       |  |                       | 14,907   
|Accrued interest receivable and other assets   |  |                       | 2,159    
|                                               |  |                       |          
|TOTAL ASSETS                                   |  | $                     | 724,262  
|                                               |  |                       |          
|LIABILITIES:                                   |  |                       |          
|Deposits                                       |  | $                     | 3,532,985
|Securities sold under repurchase agreements    |  |                       | 6,106    
|Accrued interest payable and other liabilities |  |                       | 53,056   
|                                               |  |                       |          
|TOTAL LIABILITIES                              |  | $                     | 3,592,147
|                                               |  |                       |          
|FRANKLIN NET LIABILITIES                       |  | $                     | 2,867,885
|                                               |  |                       |          



|(1) | Subsequent to November 7, 2008, pursuant to the terms of the purchase and assumption agreement, the Bank purchased an additional $344.8 million in performing loans
from the FDIC during the fourth quarter of 2008. These loans were originated at the Franklin Bank community banking offices.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The table below summarizes select pro forma data for the combined company for the periods indicated assuming the Franklin acquisition was effective on January 1 of the indicated periods. The
information in the table below was calculated based on pro forma data related to the assets acquired and the liabilities assumed from Franklin Bank for the period of November 7, 2008 to December 31, 2008 because historical financial
statements and data of Franklin Bank for the periods presented was unavailable. The information in the table below also gives effect to the Companys acquisition of TXUI in January 2007.



|                                |  |                                         |         |     |      |   |         |    
|------------------------------- |  | --------------------------------------- | ------- | --- | ---- | - | ------- | ---
|                                |  | For the twelve months endedDecember 31, |        
|                                |  | 2008                                    |         |     | 2007 |  
|                                |  | (In thousands)                          |        
|                                |  | (unaudited)                             |        
|Net interest income             |  | $                                       | 274,978 |     |      | $ | 256,727 |    
|Net income                      |  | $                                       | 104,464 | (1) |      | $ | 108,510 | (2)
|Earnings per share (diluted)    |  | $                                       | 2.30    | (1) |      | $ | 2.45    | (2)
|Weighted average diluted shares |  |                                         | 45,479  |     |      |   | 44,254  |    



|(1) | Includes a $14.0 million pre-tax, or $9.1 million after-tax, impairment charge on write-down of securities.
|--- | -----------------------------------------------------------------------------------------------------------

|(2) | Includes a $10.0 million pre-tax, or $6.5 million after-tax, impairment charge on write-down of securities.
|--- | -----------------------------------------------------------------------------------------------------------

The pro forma results are not necessarily indicative of what actually would have occurred if the Franklin acquisition had occurred on
January 1 of each indicated period, or of any future consolidated results.

On January 31, 2007, the Company
completed its acquisition of Texas United Bancshares, Inc., La Grange, Texas (TXUI). Under the terms of the merger agreement, TXUI was merged into the Company and subsequently each of TXUIs wholly owned subsidiary banks, State
Bank, GNB Financial, n.a., Gateway National Bank and Northwest Bank, was merged into the Bank. The Company issued approximately 10.770 million shares of its common stock for all of the issued and outstanding capital stock of TXUI. In addition,
options to acquire 179,956 shares of TXUI common stock were converted into options to acquire



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



179,956 shares of Company common stock. In connection with the acquisition, the Company assumed $44.8 million in junior subordinated debentures issued to five subsidiary trusts. TXUI was publicly
traded and operated forty-one (41) banking offices in Texas. As of December 31, 2006, TXUI had, on a consolidated basis, total assets of $1.806 billion, loans (including loans held for sale) of $1.212 billion, deposits of $1.362 billion
and shareholders equity of $161.9 million.

The table below summarizes select pro forma data for the combined company
for the periods indicated assuming the TXUI acquisition was effective on January 1 of the indicated periods. The information in the table below also gives effect to the Companys acquisition of SNB in April 2006.



|                                |  |                                         |         |     |      |   |        
|------------------------------- |  | --------------------------------------- | ------- | --- | ---- | - | -------
|                                |  | For the twelve months endedDecember 31,
|                                |  | 2007                                    |         |     | 2006
|                                |  | (In thousands)                         
|                                |  | (unaudited)                            
|Net interest income             |  | $                                       | 206,685 |     |      | $ | 218,986
|Net income                      |  | $                                       | 86,063  | (1) |      | $ | 87,039 
|Earnings per share (diluted)    |  | $                                       | 1.94    | (1) |      | $ | 2.04   
|Weighted average diluted shares |  |                                         | 44,254  |     |      |   | 42,612 



|(1) | Includes a $10.0 million pre-tax, or $6.5 million after-tax, impairment charge on write-down of securities.
|--- | -----------------------------------------------------------------------------------------------------------

The pro forma results are not necessarily indicative of what actually would have occurred if the TXUI acquisition had occurred on
January 1 of each indicated period, or of any future consolidated results.

In connection with the purchase, the Company
recorded a premium of $353.5 million, of which $31.0 million was identified as core deposit intangibles. The remaining $322.5 million of the premium was recorded as goodwill.

On September 1, 2007, the Company completed its acquisition of The Bank of Navasota, N.A., Navasota, Texas through the merger of the
Bank of Navasota into the Bank. The Company issued 251,360 shares of its common stock and paid approximately $8.6 million in cash for all of the issued and outstanding capital stock of the Bank of Navasota. The Bank of Navasota operated one
banking office in Navasota, Texas, which became a full-service banking center of Prosperity Bank. As of June 30, 2007, the Bank of Navasota had total assets of $73.4 million, loans of $33.0 million, deposits of $63.8 million and
shareholders equity of $9.1 million.

In connection with the purchase, the Company recorded a premium of $9.1 million,
of which $2.0 million was identified as core deposit intangibles. The remaining $7.1 million of the premium was recorded as goodwill.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



3. GOODWILL AND CORE DEPOSIT INTANGIBLES

Changes in the carrying amount of the Companys goodwill and core deposit intangibles for fiscal 2009 and 2008 were as follows:



|                                                                                      |  |                        |         |   |                         |   |         |  
|------------------------------------------------------------------------------------- |  | ---------------------- | ------- | - | ----------------------- | - | ------- | -
|                                                                                      |  | Goodwill               |         |   | Core DepositIntangibles |  
|                                                                                      |  | (Dollars in thousands) |        
|Balance as of December 31, 2007                                                       |  | $                      | 753,909 |   |                         | $ | 46,069  |  
|Less:                                                                                 |  |                        |         |   |                         |   |         |  
|Amortization                                                                          |  |                        |        |   |                         |   | (9,797  | )
|Add:                                                                                  |  |                        |         |   |                         |   |         |  
|Acquisition of Franklin Bank.                                                         |  |                        | 61,303  |   |                         |   |        |  
|Acquisition of 1stChoice Bancorp, Inc.                                                |  |                        | 50,460  |   |                         |   | 637     |  
|Acquisition of Banco Popular branches                                                 |  |                        | 13,122  |   |                         |   | 1,287   |  
|Prior year acquisition of Bank of Navasota                                            |  |                        | 426     |   |                         |   |        |  
|Prior year acquisition of Texas United Bancshares, Inc.                               |  |                        | (3,073  | ) |                         |   |        |  
|Purchase accounting adjustments to prior year acquisitions (deferred tax adjustments) |  |                        | (1,493  | ) |                         |   |        |  
|                                                                                      |  |                        |         |   |                         |   |         |  
|Balance as of December 31, 2008                                                       |  |                        | 874,654 |   |                         |   | 38,196  |  
|Less:                                                                                 |  |                        |         |   |                         |   |         |  
|Amortization                                                                          |  |                        |        |   |                         |   | (10,075 | )
|Add:                                                                                  |  |                        |         |   |                         |   |         |  
|Prior year acquisition of Franklin Bank.                                              |  |                        | 2,266   |   |                         |   | 7,264   |  
|Prior year acquisition of 1stChoice Bancorp, Inc.                                     |  |                        | 17      |   |                         |   |        |  
|Prior year acquisition of Banco Popular branches                                      |  |                        | 50      |   |                         |   |        |  
|                                                                                      |  |                        |         |   |                         |   |         |  
|Balance as of December 31, 2009                                                       |  | $                      | 876,987 |   |                         | $ | 35,385  |  
|                                                                                      |  |                        |         |   |                         |   |         |  

Purchase accounting adjustments to prior year acquisitions were made to adjust deferred tax asset and
liability balances. Goodwill is recorded on the acquisition date of each entity. The Company may record subsequent adjustments to goodwill for amounts undeterminable at acquisition date, such as deferred taxes and real estate valuations, and
therefore the goodwill amounts reflected in the table above may change accordingly. The Company initially records the total premium paid on acquisitions as goodwill. After finalizing the valuation, core deposit intangibles are identified and
reclassified from goodwill to core deposit intangibles on the balance sheet. This reclassification has no effect on total assets or liabilities. Management performs an evaluation annually, and more frequently if a triggering event occurs, of whether
any impairment of the goodwill and other intangibles has occurred. If any such impairment is determined, a write down is recorded. As of December 31, 2009, there was no impairment recorded on goodwill.

Core deposit intangibles (CDI) are amortized on an accelerated basis over their estimated lives, which the Company believes is
between 8 and 10 years. Gross core deposit intangibles outstanding were $76.7 million and $69.5 million at December 31, 2009 and December 31, 2008, respectively. Net core deposit intangibles outstanding were $35.4 million and $38.2 million
at the same dates, respectively. Amortization expense related to intangible assets totaled $10.1 million and $9.8 million for the years ended December 31, 2009 and 2008, respectively. The changes are primarily due to the core deposit
intangibles from the Franklin Bank acquisition and amortization.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The estimated aggregate future amortization expense for CDI remaining as of
December 31, 2009 is as follows (dollars in thousands):



|           |  |   |       
|---------- |  | - | ------
|2010       |  | $ | 8,662 
|2011       |  |   | 7,420 
|2012       |  |   | 6,033 
|2013       |  |   | 4,189 
|2014       |  |   | 3,073 
|Thereafter |  |   | 6,008 
|           |  |   |       
|Total      |  | $ | 35,385
|           |  |   |       

4. CASH AND DUE FROM BANKS

The Bank is required by the Federal Reserve Bank of Dallas to maintain average reserve balances. Cash and due from banks in the
consolidated balance sheets includes amounts so restricted of $39.0 million and $71.3 million at December 31, 2009 and 2008, respectively.

5. SECURITIES

The amortized cost and fair value of investment securities as of December 31, 2009 are as
follows:



|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|-------------------------------------------------------------------- |  | ------------- | --------- | -------------------- | - | --------------------- |  | - | --------- | - |  | - | ---------
|                                                                     |  | AmortizedCost |           | GrossUnrealizedGains |   | GrossUnrealizedLosses |  |   | FairValue
|Available for Sale                                                   |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|U.S. Treasury securities and obligations of U.S. government agencies |  | $             | 1,014     |                      | $ | 26                    |  | $ |          |   |  | $ | 1,040    
|States and political subdivisions                                    |  |               | 49,280    |                      |   | 1,398                 |  |   | (356      | ) |  |   | 50,322   
|Collateralized mortgage obligations                                  |  |               | 1,169     |                      |   |                      |  |   | (31       | ) |  |   | 1,138    
|Mortgage-backed securities                                           |  |               | 505,170   |                      |   | 24,306                |  |   | (106      | ) |  |   | 529,370  
|Qualified Zone Academy Bond                                          |  |               | 8,000     |                      |   | 582                   |  |   |          |   |  |   | 8,582    
|Other securities                                                     |  |               | 9,015     |                      |   | 36                    |  |   |          |   |  |   | 9,051    
|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|Total                                                                |  | $             | 573,648   |                      | $ | 26,348                |  | $ | (493      | ) |  | $ | 599,503  
|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|Held to Maturity                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|U.S. Treasury securities and obligations of U.S. government agencies |  | $             | 40,701    |                      | $ | 1,621                 |  | $ |          |   |  | $ | 42,322   
|States and political subdivisions                                    |  |               | 32,895    |                      |   | 809                   |  |   | (1,050    | ) |  |   | 32,654   
|Corporate debt securities                                            |  |               | 1,500     |                      |   | 10                    |  |   |          |   |  |   | 1,510    
|Collateralized mortgage obligations                                  |  |               | 295,754   |                      |   | 3,652                 |  |   | (1,156    | ) |  |   | 298,250  
|Mortgage-backed securities                                           |  |               | 3,135,037 |                      |   | 111,045               |  |   | (22       | ) |  |   | 3,246,060
|Qualified School Construction Bonds (QSCB)                           |  |               | 12,900    |                      |   | 57                    |  |   |          |   |  |   | 12,957   
|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|Total                                                                |  | $             | 3,518,787 |                      | $ | 117,194               |  | $ | (2,228    | ) |  | $ | 3,633,753
|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The amortized cost and fair value of investment securities as of December 31, 2008
are as follows:



|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|-------------------------------------------------------------------- |  | ------------- | --------- | -------------------- | - | --------------------- |  | - | --------- | - |  | - | ---------
|                                                                     |  | AmortizedCost |           | GrossUnrealizedGains |   | GrossUnrealizedLosses |  |   | FairValue
|Available for Sale                                                   |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|U.S. Treasury securities and obligations of U.S. government agencies |  | $             | 91,103    |                      | $ | 28                    |  | $ |          |   |  | $ | 91,131   
|States and political subdivisions                                    |  |               | 50,008    |                      |   | 763                   |  |   | (1,846    | ) |  |   | 48,925   
|Collateralized mortgage obligations                                  |  |               | 1,437     |                      |   |                      |  |   | (58       | ) |  |   | 1,379    
|Mortgage-backed securities                                           |  |               | 642,529   |                      |   | 16,914                |  |   | (744      | ) |  |   | 658,699  
|Qualified Zone Academy Bond                                          |  |               | 8,000     |                      |   |                      |  |   |          |   |  |   | 8,000    
|Other securities                                                     |  |               | 9,009     |                      |   | 101                   |  |   |          |   |  |   | 9,110    
|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|Total                                                                |  | $             | 802,086   |                      | $ | 17,806                |  | $ | (2,648    | ) |  | $ | 817,244  
|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|Held to Maturity                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|U.S. Treasury securities and obligations of U.S. government agencies |  | $             | 60,044    |                      | $ | 2,328                 |  | $ |          |   |  | $ | 62,372   
|States and political subdivisions                                    |  |               | 34,561    |                      |   | 201                   |  |   | (3,152    | ) |  |   | 31,610   
|Corporate debt securities                                            |  |               | 1,500     |                      |   | 63                    |  |   |          |   |  |   | 1,563    
|Collateralized mortgage obligations                                  |  |               | 177,952   |                      |   | 2,222                 |  |   | (1,012    | ) |  |   | 179,162  
|Mortgage-backed securities                                           |  |               | 3,069,100 |                      |   | 65,236                |  |   | (62       | ) |  |   | 3,134,274
|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          
|Total                                                                |  | $             | 3,343,157 |                      | $ | 70,050                |  | $ | (4,226    | ) |  | $ | 3,408,981
|                                                                     |  |               |           |                      |   |                       |  |   |           |   |  |   |          

Management evaluates securities for
other-than-temporary impairment (OTTI) at least on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. The investment securities portfolio is evaluated for OTTI by segregating the
portfolio into two general segments and applying the appropriate OTTI model. Investment securities classified as available for sale or held-to-maturity are generally evaluated for OTTI under FASB ASC Topic 320, InvestmentsDebt and Equity
Securities. Certain purchased beneficial interests, including non-agency mortgage-backed securities, asset-backed securities, and collateralized debt obligations, that had credit ratings at the time of purchase of below AA are evaluated using
the model outlined in ASC Topic 325, Investments-Other. The Company currently does not own any securities that are accounted for under ASC Topic 325.

In determining OTTI under ASC Topic 320, management considers many factors, including: (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial
condition and near-term prospects of the issuer, (3) whether the market decline was affected by macroeconomic conditions, and (4) whether the entity has the intent to sell the debt security or more likely than not will be required to sell
the debt security before its anticipated recovery. The assessment of whether an other-than-temporary decline exists involves a high degree of subjectivity and judgment and is based on the information available to management at a point in time. If
applicable, the second segment of the portfolio uses the OTTI guidance provided by ASC Topic 325 that is specific to purchased beneficial interests that, on the purchase date, were rated below AA. Under the ASC Topic 325 model, the Company compares
the present value of the remaining cash flows as estimated at the preceding evaluation date to the current expected remaining cash flows. An OTTI is deemed to have occurred if there has been an adverse change in the remaining expected future cash
flows.

When OTTI occurs under either model, the amount of the other-than-temporary-impairment recognized in earnings depends
on whether an entity intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis less any current-period credit loss. If an entity intends to



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



sell or more likely than not will be required to sell the security before recovery of its amortized cost basis less any current-period credit loss, the OTTI shall be recognized in earnings equal
to the entire difference between the investments amortized cost basis and its fair value at the balance sheet date. If an entity does not intend to sell the security and it is not more likely than not that the entity will be required to sell
the security before recovery of its amortized cost basis less any current-period loss, the OTTI shall be separated into the amount representing the credit related portion of the impairment loss (credit loss) and the noncredit portion of
the impairment loss (noncredit portion). The amount of the total OTTI related to the credit loss is determined based on the difference between the present value of cash flows expected to be collected and the amortized cost basis and such
difference is recognized in earnings. The amount of the total OTTI related to the noncredit portion shall be recognized in other comprehensive income, net of applicable taxes. The previous amortized cost basis less the OTTI recognized in earnings
shall become the new amortized cost basis of the investment.

Management believes the Company does not intend to sell any debt
securities or more likely than not will not be required to sell any debt securities before their anticipated recovery, at which time the Company will receive full value for the securities. Furthermore, management has the ability and intent to hold
the securities classified as available for sale that were in a loss position as of December 31, 2009 for a period of time sufficient for an entire recovery of the cost basis of the securities. The unrealized losses are largely due to
increases in market interest rates over the yields available at the time the underlying securities were purchased. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such
investments decline. Management does not believe any of the securities are impaired due to reasons of credit quality. Accordingly, as of December 31, 2009, management believes any impairment in the Companys securities are temporary and no
impairment loss has been realized in the Companys consolidated income statement.

As part of its regular quarterly
review for impairment of marketable securities, the Company recognized an other-than-temporary impairment charge of $14.0 million pre-tax and $10.0 million pre-tax on Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac) and on
Federal National Mortgage Association (FNMA or Fannie Mae) government sponsored, investment grade perpetual callable preferred securities during the years ended December 31, 2008 and 2007, respectively. The
other-than-temporary-impairment charges were recorded on six perpetual preferred stock issues classified as available for sale investment securities with a total book value (prior to recognition of the impairment charges) of $24.0 million. The
Company decided to recognize the unrealized mark-to-market loss on these investment grade securities as an other-than-temporary impairment charge because of the significant decline in the market value of these securities and because management
believes it is unlikely that these securities will recover their original book value within a reasonable amount of time. Market value decreases on available for sale securities are recorded as an unrealized mark-to-market loss and reflected as a
reduction to shareholders equity through other comprehensive income. Accordingly, the recognition of the other-than-temporary impairment non-cash charge did not affect shareholders equity, or tangible shareholders equity.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Securities with unrealized losses segregated by length of time such securities have been
in a continuous loss position at December 31, 2009 were as follows:



|                                                                     |  |                        |         |                  |                     |      |                     |       |                  |        |  |                     |        |                  |  |   |         |  |   |        |  
|-------------------------------------------------------------------- |  | ---------------------- | ------- | ---------------- | ------------------- | ---- | ------------------- | ----- | ---------------- | ------ |  | ------------------- | ------ | ---------------- |  | - | ------- |  | - | ------ | -
|                                                                     |  | Less than 12 Months    |         |                  | More than 12 Months |      |                     | Total |                 
|                                                                     |  | EstimatedFair Value    |         | UnrealizedLosses |                     |      | EstimatedFair Value |       | UnrealizedLosses |        |  | EstimatedFair Value |        | UnrealizedLosses | 
|                                                                     |  | (Dollars in thousands) |        
|Available for Sale                                                   |  |                        |         |                  |                     |      |                     |       |                  |        |  |                     |        |                  |  |   |         |  |   |        |  
|U.S. Treasury securities and obligations of U.S. government agencies |  | $                      |        |                  | $                   |     |                     |       | $                |       |  | $                   |       |                  |  | $ |        |  | $ |       |  
|States and political subdivisions                                    |  |                        | 3,152   |                  |                     | (42  | )                   |       |                  | 5,882  |  |                     | (314   | )                |  |   | 9,034   |  |   | (356   | )
|Collateralized mortgage obligations                                  |  |                        |        |                  |                     |     |                     |       |                  | 1,139  |  |                     | (31    | )                |  |   | 1,139   |  |   | (31    | )
|Mortgage-backed securities                                           |  |                        | 3,807   |                  |                     | (20  | )                   |       |                  | 8,875  |  |                     | (86    | )                |  |   | 12,682  |  |   | (106   | )
|                                                                     |  |                        |         |                  |                     |      |                     |       |                  |        |  |                     |        |                  |  |   |         |  |   |        |  
|Total                                                                |  | $                      | 6,959   |                  | $                   | (62  | )                   |       | $                | 15,896 |  | $                   | (431   | )                |  | $ | 22,855  |  | $ | (493   | )
|                                                                     |  |                        |         |                  |                     |      |                     |       |                  |        |  |                     |        |                  |  |   |         |  |   |        |  
|Held to Maturity                                                     |  |                        |         |                  |                     |      |                     |       |                  |        |  |                     |        |                  |  |   |         |  |   |        |  
|U.S. Treasury securities and obligations of U.S. government agencies |  | $                      |        |                  | $                   |     |                     |       | $                |       |  | $                   |       |                  |  | $ |        |  | $ |       |  
|States and political subdivisions                                    |  |                        | 1,268   |                  |                     | (67  | )                   |       |                  | 11,630 |  |                     | (983   | )                |  |   | 12,898  |  |   | (1,050 | )
|Corporate debt securities                                            |  |                        |        |                  |                     |     |                     |       |                  |       |  |                     |       |                  |  |   |        |  |   |       |  
|Collateralized mortgage obligations                                  |  |                        | 100,666 |                  |                     | (193 | )                   |       |                  | 9,322  |  |                     | (963   | )                |  |   | 109,988 |  |   | (1,156 | )
|Mortgage-backed securities                                           |  |                        | 1,514   |                  |                     | (6   | )                   |       |                  | 2,863  |  |                     | (16    | )                |  |   | 4,377   |  |   | (22    | )
|                                                                     |  |                        |         |                  |                     |      |                     |       |                  |        |  |                     |        |                  |  |   |         |  |   |        |  
|Total                                                                |  | $                      | 103,448 |                  | $                   | (266 | )                   |       | $                | 23,815 |  | $                   | (1,962 | )                |  | $ | 127,263 |  | $ | (2,228 | )
|                                                                     |  |                        |         |                  |                     |      |                     |       |                  |        |  |                     |        |                  |  |   |         |  |   |        |  

At December 31, 2009, there were approximately 339 securities in an unrealized loss position for more
than 12 months.

Securities with unrealized losses segregated by length of time such securities have been in a continuous loss
position at December 31, 2008 were as follows:



|                                                                     |  |                        |        |                  |                     |        |                     |       |                  |        |  |                     |        |                  |  |   |        |  |   |        |  
|-------------------------------------------------------------------- |  | ---------------------- | ------ | ---------------- | ------------------- | ------ | ------------------- | ----- | ---------------- | ------ |  | ------------------- | ------ | ---------------- |  | - | ------ |  | - | ------ | -
|                                                                     |  | Less than 12 Months    |        |                  | More than 12 Months |        |                     | Total |                 
|                                                                     |  | EstimatedFair Value    |        | UnrealizedLosses |                     |        | EstimatedFair Value |       | UnrealizedLosses |        |  | EstimatedFair Value |        | UnrealizedLosses | 
|                                                                     |  | (Dollars in thousands) |       
|Available for Sale                                                   |  |                        |        |                  |                     |        |                     |       |                  |        |  |                     |        |                  |  |   |        |  |   |        |  
|U.S. Treasury securities and obligations of U.S. government agencies |  | $                      |       |                  | $                   |       |                     |       | $                |       |  | $                   |       |                  |  | $ |       |  | $ |       |  
|States and political subdivisions                                    |  |                        | 20,409 |                  |                     | (1,067 | )                   |       |                  | 4,039  |  |                     | (779   | )                |  |   | 24,448 |  |   | (1,846 | )
|Collateralized mortgage obligations                                  |  |                        | 24     |                  |                     | (1     | )                   |       |                  | 1,356  |  |                     | (57    | )                |  |   | 1,380  |  |   | (58    | )
|Mortgage-backed securities                                           |  |                        | 33,777 |                  |                     | (537   | )                   |       |                  | 11,706 |  |                     | (207   | )                |  |   | 45,483 |  |   | (744   | )
|                                                                     |  |                        |        |                  |                     |        |                     |       |                  |        |  |                     |        |                  |  |   |        |  |   |        |  
|Total                                                                |  | $                      | 54,210 |                  | $                   | (1,605 | )                   |       | $                | 17,101 |  | $                   | (1,043 | )                |  | $ | 71,311 |  | $ | (2,648 | )
|                                                                     |  |                        |        |                  |                     |        |                     |       |                  |        |  |                     |        |                  |  |   |        |  |   |        |  
|Held to Maturity                                                     |  |                        |        |                  |                     |        |                     |       |                  |        |  |                     |        |                  |  |   |        |  |   |        |  
|U.S. Treasury securities and obligations of U.S. government agencies |  | $                      |       |                  | $                   |       |                     |       | $                |       |  | $                   |       |                  |  | $ |       |  | $ |       |  
|States and political subdivisions                                    |  |                        | 18,297 |                  |                     | (2,754 | )                   |       |                  | 1,639  |  |                     | (398   | )                |  |   | 19,936 |  |   | (3,152 | )
|Corporate debt securities                                            |  |                        |       |                  |                     |       |                     |       |                  |       |  |                     |       |                  |  |   |       |  |   |       |  
|Collateralized mortgage obligations                                  |  |                        | 14,402 |                  |                     | (925   | )                   |       |                  | 1,091  |  |                     | (87    | )                |  |   | 15,493 |  |   | (1,012 | )
|Mortgage-backed securities                                           |  |                        | 3,260  |                  |                     | (36    | )                   |       |                  | 2,670  |  |                     | (26    | )                |  |   | 5,930  |  |   | (62    | )
|                                                                     |  |                        |        |                  |                     |        |                     |       |                  |        |  |                     |        |                  |  |   |        |  |   |        |  
|Total                                                                |  | $                      | 35,959 |                  | $                   | (3,715 | )                   |       | $                | 5,400  |  | $                   | (511   | )                |  | $ | 41,359 |  | $ | (4,226 | )
|                                                                     |  |                        |        |                  |                     |        |                     |       |                  |        |  |                     |        |                  |  |   |        |  |   |        |  



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The amortized cost and fair value of investment securities at December 31, 2009, by
contractual maturity, are shown below. Actual maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations at any time with or without call or prepayment penalties.



|                                                                   |  |                        |           |                    |   |               |  |           |         |  |   |        
|------------------------------------------------------------------ |  | ---------------------- | --------- | ------------------ | - | ------------- |  | --------- | ------- |  | - | -------
|                                                                   |  | December 31, 2009     
|                                                                   |  | Held to Maturity       |           | Available for Sale
|                                                                   |  | AmortizedCost          |           | FairValue          |   | AmortizedCost |  | FairValue
|                                                                   |  | (Dollars in thousands)
|Due in one year or less                                            |  | $                      | 20,774    |                    | $ | 21,048        |  | $         | 8,303   |  | $ | 8,328  
|Due after one year through five years                              |  |                        | 16,282    |                    |   | 17,342        |  |           | 13,369  |  |   | 14,047 
|Due after five years through ten years                             |  |                        | 20,817    |                    |   | 21,759        |  |           | 18,003  |  |   | 18,838 
|Due after ten years                                                |  |                        | 30,123    |                    |   | 29,294        |  |           | 27,634  |  |   | 27,782 
|                                                                   |  |                        |           |                    |   |               |  |           |         |  |   |        
|Subtotal                                                           |  |                        | 87,996    |                    |   | 89,443        |  |           | 67,309  |  |   | 68,995 
|Mortgage-backed securities and collateralized mortgage obligations |  |                        | 3,430,791 |                    |   | 3,544,310     |  |           | 506,339 |  |   | 530,508
|                                                                   |  |                        |           |                    |   |               |  |           |         |  |   |        
|Total                                                              |  | $                      | 3,518,787 |                    | $ | 3,633,753     |  | $         | 573,648 |  | $ | 599,503
|                                                                   |  |                        |           |                    |   |               |  |           |         |  |   |        

There were no sales of securities classified as
available for sale for the year ended December 31, 2009 or 2008.

At December 31, 2009 and 2008, the Company did not
own securities of any one issuer (other than the U.S. government and its agencies) for which aggregate adjusted cost exceeded 10% of the consolidated shareholders equity at such respective dates.

Securities with an amortized cost of $2.35 billion and $1.90 billion and a fair value of $2.44 billion and $1.93 billion at
December 31, 2009 and 2008, respectively, were pledged to collateralize public deposits and for other purposes required or permitted by law.

6. LOANS

The loan portfolio consists of various types of loans made principally to borrowers located in South
and Southeast Texas, Houston, Central Texas, East Texas, Corpus Christi and Dallas/Fort Worth and is classified by major type as follows:



|                                    |  |                        |           |      |   |          
|----------------------------------- |  | ---------------------- | --------- | ---- | - | ---------
|                                    |  | December 31,          
|                                    |  | 2009                   |           | 2008
|                                    |  | (Dollars in thousands)
|Commercial and industrial           |  | $                      | 392,975   |      | $ | 482,476  
|Real estate:                        |  |                        |           |      |   |          
|Construction and land development   |  |                        | 557,245   |      |   | 666,081  
|1-4 family residential              |  |                        | 709,101   |      |   | 668,097  
|Home equity                         |  |                        | 117,661   |      |   | 107,048  
|Commercial mortgage                 |  |                        | 1,261,267 |      |   | 1,268,340
|Farmland                            |  |                        | 93,288    |      |   | 96,970   
|Multi-family residential            |  |                        | 77,952    |      |   | 75,063   
|Agriculture                         |  |                        | 42,241    |      |   | 48,679   
|Consumer (net of unearned discount) |  |                        | 102,436   |      |   | 137,639  
|Other                               |  |                        | 22,537    |      |   | 16,664   
|                                    |  |                        |           |      |   |          
|Total(1)                            |  | $                      | 3,376,703 |      | $ | 3,567,057
|                                    |  |                        |           |      |   |          



|(1) | Includes loans held for sale.
|--- | -----------------------------



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The Company had $16.4 million in nonperforming assets at December 31, 2009 compared
with $14.4 million at December 31, 2008. The nonperforming assets at December 31, 2009 consisted of one hundred-thirteen (113) separate credits or ORE properties, of which forty-six (46) credits were related to loans acquired in
the Companys 2008 and 2007 acquisitions. The nonperforming assets at December 31, 2008 consisted of ninety-eight (98) separate credits or ORE properties, of which 45 credits were related to loans acquired in the Companys 2007
and 2008 acquisitions. Interest foregone on nonaccrual loans for the years ended December 31, 2009, 2008 and 2007 was $434,000, $121,000 and $47,000, respectively.

The contractual maturity ranges of the 1-4 family residential, home equity, commercial and industrial, commercial mortgage, construction and land development, and agriculture portfolios and the amount of
such loans with predetermined interest rates and floating rates in each maturity range are summarized in the following table:



|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          
|----------------------------------------- |  | ---------------------- | ------- | -------------------------- | - | --------------- |  | ----- | --------- |  | - | ---------
|                                          |  | December 31, 2009     
|                                          |  | One Yearor Less        |         | After OneThroughFive Years |   | After FiveYears |  | Total
|                                          |  | (Dollars in thousands)
|1-4 family residential and home equity    |  | $                      | 17,236  |                            | $ | 68,102          |  | $     | 741,424   |  | $ | 826,762  
|Commercial and industrial                 |  |                        | 172,945 |                            |   | 152,456         |  |       | 67,574    |  |   | 392,975  
|Commercial mortgage                       |  |                        | 60,187  |                            |   | 138,943         |  |       | 1,062,137 |  |   | 1,261,267
|Construction and land development         |  |                        | 154,685 |                            |   | 105,506         |  |       | 297,054   |  |   | 557,245  
|Agriculture                               |  |                        | 27,483  |                            |   | 13,990          |  |       | 768       |  |   | 42,241   
|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          
|Total                                     |  | $                      | 432,536 |                            | $ | 478,997         |  | $     | 2,168,957 |  | $ | 3,080,490
|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          
|Loans with a predetermined interest rate. |  | $                      | 142,225 |                            | $ | 289,979         |  | $     | 797,186   |  | $ | 1,229,390
|Loans with a floating interest rate.      |  |                        | 290,311 |                            |   | 189,018         |  |       | 1,371,771 |  |   | 1,851,100
|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          
|Total                                     |  | $                      | 432,536 |                            | $ | 478,997         |  | $     | 2,168,957 |  | $ | 3,080,490
|                                          |  |                        |         |                            |   |                 |  |       |           |  |   |          

As of December 31, 2009 and 2008, loans
outstanding to directors, officers and their affiliates totaled $15.5 million and $15.1 million, respectively. All transactions entered into between the Company and such related parties are done in the ordinary course of business, made on the same
terms and conditions as similar transactions with unaffiliated persons.

An analysis of activity with respect to these
related-party loans is as follows:



|                                         |  |                         |        |   |      |   |        |  
|---------------------------------------- |  | ----------------------- | ------ | - | ---- | - | ------ | -
|                                         |  | Year Ended December 31, |       
|                                         |  | 2009                    |        |   | 2008 |  
|                                         |  | (Dollars in thousands)  |       
|Beginning balance                        |  | $                       | 15,067 |   |      | $ | 6,685  |  
|New loans and reclassified related loans |  |                         | 3,521  |   |      |   | 12,046 |  
|Repayments                               |  |                         | (3,048 | ) |      |   | (3,664 | )
|                                         |  |                         |        |   |      |   |        |  
|Ending balance                           |  | $                       | 15,540 |   |      | $ | 15,067 |  
|                                         |  |                         |        |   |      |   |        |  



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



7. ALLOWANCE FOR CREDIT LOSSES

An analysis of activity in the allowance for credit losses is as follows:



|                                                       |  |                         |         |   |      |   |        |      |  |   |        |  
|------------------------------------------------------ |  | ----------------------- | ------- | - | ---- | - | ------ | ---- |  | - | ------ | -
|                                                       |  | Year Ended December 31, |        
|                                                       |  | 2009                    |         |   | 2008 |   |        | 2007 | 
|                                                       |  | (Dollars in thousands)  |        
|Balance at beginning of year.                          |  | $                       | 36,970  |   |      | $ | 32,543 |      |  | $ | 23,990 |  
|Balance acquired in the 1stChoice acquisition          |  |                         |        |   |      |   | 2,182  |      |  |   |       |  
|Balance acquired in the TXUI and Navasota acquisitions |  |                         |        |   |      |   |       |      |  |   | 13,386 |  
|Additionprovision charged to operations               |  |                         | 28,775  |   |      |   | 9,867  |      |  |   | 760    |  
|Charge-offs and recoveries:                            |  |                         |         |   |      |   |        |      |  |   |        |  
|Loans charged off                                      |  |                         | (15,399 | ) |      |   | (9,182 | )    |  |   | (8,162 | )
|Loan recoveries                                        |  |                         | 1,517   |   |      |   | 1,560  |      |  |   | 2,569  |  
|                                                       |  |                         |         |   |      |   |        |      |  |   |        |  
|Net charge-offs                                        |  |                         | (13,882 | ) |      |   | (7,622 | )    |  |   | (5,593 | )
|                                                       |  |                         |         |   |      |   |        |      |  |   |        |  
|Balance at end of year.                                |  | $                       | 51,863  |   |      | $ | 36,970 |      |  | $ | 32,543 |  
|                                                       |  |                         |         |   |      |   |        |      |  |   |        |  

The Companys allowance for credit losses consists of two elements: (i) specific valuation
allowances determined in accordance with ASC Topic 310, Receivables based on probable losses on specific loans; and (ii) a general valuation allowance based on historical loan loss experience, general economic conditions and other
qualitative risk factors both internal and external to the Company in accordance with ASC Topic 450. The recorded investment in impaired loans was $21.7 million and $12.8 million at December 31, 2009 and 2008, respectively. Such impaired
loans required an allowance for credit losses of $5.4 million and $3.5 million at December 31, 2009 and 2008, respectively.

8. FAIR
VALUE

Effective January 1, 2008, the Company adopted FASB ASC Topic 820, which defines fair value, addresses aspects
of the expanding application of fair value accounting and establishes a consistent framework for measuring fair value. Fair values represent the estimated price that would be received from selling an asset or paid to transfer a liability, otherwise
knows as an exit price.

Fair Value Hierarchy

ASC Topic 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. In accordance with ASC Topic 820, these inputs are
summarized in the three broad levels listed below:



| |  |  | Level 1Quoted prices in active markets for identical assets or liabilities. Level 1 assets include US Treasury securities that are highly liquid
and are actively traded in over-the-counter markets.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Level 2Other significant observable inputs (including quoted prices in active markets for similar assets or liabilities) or other inputs that are
observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. The Companys Level 2 assets include US government and agency mortgage-backed securities, corporate securities, municipal
bonds and CRA funds.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Level 3Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or
liabilities. Level 3 assets and liabilities include financial instruments
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair values requires significant
management judgment or estimation.
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

In determining the appropriate levels, the Company performs a detailed
analysis of the assets and liabilities that are subject to ASC Topic 820.

The following tables present fair value
measurements as of December 31, 2009 and 2008:



|                                                    |  |                        |     |         |   |         |  |       |   |  |   |        
|--------------------------------------------------- |  | ---------------------- | --- | ------- | - | ------- |  | ----- | - |  | - | -------
|                                                    |  | Level 1                |     | Level 2 |   | Level 3 |  | Total
|                                                    |  | (Dollars in thousands)
|2009:                                               |  |                        |     |         |   |         |  |       |   |  |   |        
|Measured on a recurring basis:                      |  |                        |     |         |   |         |  |       |   |  |   |        
|Available for sale securities (at fair value)       |  | $                      |    |         | $ | 599,503 |  | $     |  |  | $ | 599,503
|                                                    |  |                        |     |         |   |         |  |       |   |  |   |        
|Total December 31, 2009                             |  | $                      |    |         | $ | 599,503 |  | $     |  |  | $ | 599,503
|                                                    |  |                        |     |         |   |         |  |       |   |  |   |        
|                                                    |  |                        |     |        
|2008:                                               |  |                        |     |         |   |         |  |       |   |  |   |        
|Measured on a recurring basis:                      |  |                        |     |         |   |         |  |       |   |  |   |        
|Interest bearing deposits in financial institutions |  | $                      | 106 |         | $ |        |  | $     |  |  | $ | 106    
|Available for sale securities (at fair value)       |  |                        |    |         |   | 817,244 |  |       |  |  | $ | 817,244
|                                                    |  |                        |     |         |   |         |  |       |   |  |   |        
|Total December 31, 2008                             |  | $                      | 106 |         | $ | 817,244 |  | $     |  |  | $ | 817,350
|                                                    |  |                        |     |         |   |         |  |       |   |  |   |        

Certain assets and liabilities are measured at fair
value on a non-recurring 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
instruments include other real estate owned, repossessed assets, held to maturity debt securities and impaired loans per ASC Topic 310. For the year ended December 31, 2009, the Company had additions to other real estate owned of
$27.4 million of which $7.1 million were outstanding December 31, 2009. For the year ended December 31, 2009, the Company had additions to impaired loans of $18.3 million of which $14.7 million were outstanding December 31, 2009. The
remaining financial assets and financial liabilities measured at fair value on a non-recurring basis that were recorded in 2009 and remained outstanding at December 31, 2009 were not significant.

The fair value of an asset or liability is the price that would be received to sell that asset or paid to transfer that liability in an
orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. In estimating fair value, the Company utilizes 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 Topic
820 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 disclosures below represent the Companys estimates based on relevant market information and information about the
financial instruments. Fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of the various instruments, and other factors. These estimates are subjective in nature
and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in the above methodologies and assumptions could significantly affect the estimates.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The following methods and assumptions were used to estimate the fair value of each class
of financial instruments for which it is practicable to estimate that value:

Cash and Cash Equivalents, Interest Bearing
Deposits in Financial Institutions and Federal Funds SoldThe carrying amount is a reasonable estimate of fair value for these short-term instruments.

SecuritiesThe fair value of securities is determined by quoted market price, if available. If a quoted market price is not available, fair value is estimated using quoted market prices for
similar securities.

Loans Held for Investment and SaleFor certain homogeneous fixed-rate categories of loans
(such as some residential mortgages and other consumer loans), fair value is estimated by discounting the future cash flows using the risk-free Treasury rate for the applicable maturity, adjusted for servicing and credit risk. The carrying value of
variable rate loans approximates fair value because the loans reprice frequently to current market rates.

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

Junior Subordinated DebenturesThe fair
value of the junior subordinated debentures was calculated using the quoted market prices, if available. If quoted market prices are not available, fair value is estimated using quoted market prices for similar subordinated debentures.

Other BorrowingsRates currently available to the Company for debt with similar terms and remaining maturities are used to
estimate the fair value of other borrowings using a discounted cash flows methodology.

Securities Sold Under Repurchase
AgreementsThe fair value of securities sold under repurchase agreements is the amount payable on demand at the reporting date.

Off-Balance Sheet Financial InstrumentsThe fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar
agreements, taking into account the remaining terms of the agreement and the present creditworthiness of the counterparties.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



FASB ASC Topic 825, requires disclosure of the fair value of financial assets and
financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The carrying amount and estimated fair values of the Companys
financial instruments are as follows:



|                                                                       |  |                        |           |                     |   |                |  |                     |           |  |   |          
|---------------------------------------------------------------------- |  | ---------------------- | --------- | ------------------- | - | -------------- |  | ------------------- | --------- |  | - | ---------
|                                                                       |  | December 31,          
|                                                                       |  | 2009                   |           | 2008               
|                                                                       |  | CarryingAmount         |           | EstimatedFair Value |   | CarryingAmount |  | EstimatedFair Value
|                                                                       |  | (Dollars in thousands)
|Financial assets:                                                      |  |                        |           |                     |   |                |  |                     |           |  |   |          
|Cash and due from banks                                                |  | $                      | 194,963   |                     | $ | 194,963        |  | $                   | 212,335   |  | $ | 212,335  
|Interest bearing deposits in financial institutions                    |  |                        |          |                     |   |               |  |                     | 106       |  |   | 106      
|Federal funds sold                                                     |  |                        | 354       |                     |   | 354            |  |                     | 16,298    |  |   | 16,298   
|Held to maturity securities                                            |  |                        | 3,518,787 |                     |   | 3,633,753      |  |                     | 3,343,157 |  |   | 3,408,981
|Available for sale securities                                          |  |                        | 599,503   |                     |   | 599,503        |  |                     | 817,244   |  |   | 817,244  
|Loans held for investment and sale, net of allowance for credit losses |  |                        | 3,324,840 |                     |   | 3,328,393      |  |                     | 3,530,087 |  |   | 3,577,158
|                                                                       |  |                        |           |                     |   |                |  |                     |           |  |   |          
|Total                                                                  |  | $                      | 7,638,447 |                     | $ | 7,756,966      |  | $                   | 7,919,227 |  | $ | 8,032,122
|                                                                       |  |                        |           |                     |   |                |  |                     |           |  |   |          
|Financial liabilities:                                                 |  |                        |           |                     |   |                |  |                     |           |  |   |          
|Deposits                                                               |  | $                      | 7,258,550 |                     | $ | 7,279,201      |  | $                   | 7,303,297 |  | $ | 7,337,773
|Junior subordinated debentures                                         |  |                        | 92,265    |                     |   | 92,538         |  |                     | 92,265    |  |   | 95,801   
|Other borrowings                                                       |  |                        | 26,140    |                     |   | 27,331         |  |                     | 229,395   |  |   | 232,716  
|Securities sold under repurchase agreements                            |  |                        | 72,596    |                     |   | 72,596         |  |                     | 96,017    |  |   | 96,017   
|                                                                       |  |                        |           |                     |   |                |  |                     |           |  |   |          
|Total                                                                  |  | $                      | 7,449,551 |                     | $ | 7,471,666      |  | $                   | 7,720,974 |  | $ | 7,762,307
|                                                                       |  |                        |           |                     |   |                |  |                     |           |  |   |          

The Companys off-balance sheet commitments are
funded at current market rates at the date they are drawn upon. It is managements opinion that the fair value of these commitments would approximate their carrying value, if drawn upon.

The fair value estimates presented herein are based on pertinent information available to management as of the dates indicated. Although
management is not aware of any factors that would significantly affect the estimated fair value amounts, such amounts have not been comprehensively revalued for purposes of these financial statements since those dates and, therefore, current
estimates of fair value may differ significantly from the amounts presented herein.

9. PREMISES AND EQUIPMENT

Premises and equipment are summarized as follows:



|                                  |  |                         |         |   |      |   |         |  
|--------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------- | -
|                                  |  | Year Ended December 31, |        
|                                  |  | 2009                    |         |   | 2008 |  
|                                  |  | (Dollars in thousands)  |        
|Land                              |  | $                       | 48,684  |   |      | $ | 37,291  |  
|Buildings                         |  |                         | 110,229 |   |      |   | 95,385  |  
|Furniture, fixtures and equipment |  |                         | 22,445  |   |      |   | 24,449  |  
|Construction in progress          |  |                         | 1,266   |   |      |   | 88      |  
|                                  |  |                         |         |   |      |   |         |  
|Total                             |  |                         | 182,624 |   |      |   | 157,213 |  
|Less accumulated depreciation     |  |                         | (33,769 | ) |      |   | (33,575 | )
|                                  |  |                         |         |   |      |   |         |  
|Premises and equipment, net       |  | $                       | 148,855 |   |      | $ | 123,638 |  
|                                  |  |                         |         |   |      |   |         |  



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Depreciation expense was $8.2 million, $7.7 million and $7.6 million for the years ended
December 31, 2009, 2008 and 2007 respectively.

10. DEPOSITS

Included in interest-bearing deposits are certificates of deposit in amounts of $100,000 or more. These certificates and their remaining
maturities at December 31, 2009 were as follows:



|                               |  |                        |          
|------------------------------ |  | ---------------------- | ---------
|                               |  | December 31, 2009     
|                               |  | (Dollars in thousands)
|Three months or less           |  | $                      | 333,576  
|Over three through six months. |  |                        | 359,691  
|Over six through 12 months     |  |                        | 416,647  
|Over 12 months                 |  |                        | 112,251  
|                               |  |                        |          
|Total                          |  | $                      | 1,222,165
|                               |  |                        |          

Interest expense for certificates of deposit in excess
of $100,000 was $36.3 million, $37.5 million and $36.4 million, for the years ended December 31, 2009, 2008 and 2007, respectively.

The Company has no brokered deposits and there are no major concentrations of deposits with any one depositor.

11. OTHER BORROWINGS AND SECURITIES SOLD UNDER REPURCHASE AGREEMENTS

The
Company utilizes borrowings to supplement deposits to fund its lending and investment activities. Borrowings consist of funds from the Federal Home Loan Bank (FHLB) and correspondent banks. FHLB advances are considered short-term,
overnight borrowings and FHLB notes payable are considered long-term borrowings. At December 31, 2009, the Company had $26.1 million in FHLB borrowings, all of which consisted of long-term FHLB notes payable compared with $229.4 million in
FHLB borrowings at December 31, 2008, of which $29.4 million consisted of long-term FHLB notes payable and $200.0 million consisted of short-term advances. FHLB advances are available to the Company under a security and pledge agreement. At
December 31, 2009, the Company had total funds of $2.73 billion available under this agreement of which $26.1 million was outstanding. The weighted average interest rate paid on the FHLB notes payable at December 31, 2009 was 5.5%. As of
December 31, 2009, the maturity dates on the FHLB notes payable ranged from the years 2010 to 2028 and had interest rates ranging from 3.08% to 6.10%. The highest outstanding balance of FHLB advances during 2009 was $231.0 million compared with
$280.0 million during 2008. The average rate paid on FHLB advances for the year ended December 31, 2009 was 0.36%.

At
December 31, 2009, the Company had $72.6 million in overnight securities sold under repurchase agreements compared with $96.0 million at December 31, 2008, a decrease of $23.4 million or 24.4% with average rates paid of 1.25% and 2.83%,
respectively.

The following table presents the Companys borrowings at December 31, 2009 and December 31,
2008:



|                                            |  |                        |        |                  |   |        
|------------------------------------------- |  | ---------------------- | ------ | ---------------- | - | -------
|                                            |  | December 31,2009       |        | December 31,2008
|                                            |  | (Dollars in thousands)
|FHLB advances                               |  | $                      |       |                  | $ | 200,000
|FHLB long-term notes payable                |  |                        | 26,140 |                  |   | 29,395 
|                                            |  |                        |        |                  |   |        
|Total other borrowings                      |  |                        | 26,140 |                  |   | 229,395
|Securities sold under repurchase agreements |  |                        | 72,596 |                  |   | 96,017 
|                                            |  |                        |        |                  |   |        
|Total                                       |  | $                      | 98,736 |                  | $ | 325,412
|                                            |  |                        |        |                  |   |        



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



12. INCOME TAXES

The components of the provision for federal income taxes are as follows:



|          |  |                         |        |   |      |   |        |  |   |       
|--------- |  | ----------------------- | ------ | - | ---- | - | ------ |  | - | ------
|          |  | Year Ended December 31,
|          |  | 2009                    |        |   | 2008 |   | 2007  
|          |  | (Dollars in thousands) 
|Current   |  | $                       | 61,794 |   |      | $ | 35,214 |  | $ | 35,709
|Deferred. |  |                         | (4,950 | ) |      |   | 6,715  |  |   | 5,895 
|          |  |                         |        |   |      |   |        |  |   |       
|Total     |  | $                       | 56,844 |   |      | $ | 41,929 |  | $ | 41,604
|          |  |                         |        |   |      |   |        |  |   |       

The provision for federal income taxes differs from
the amount computed by applying the federal income tax statutory rate on income as follows:



|                                          |  |                         |        |   |      |   |        |      |  |   |        |  
|----------------------------------------- |  | ----------------------- | ------ | - | ---- | - | ------ | ---- |  | - | ------ | -
|                                          |  | Year Ended December 31, |       
|                                          |  | 2009                    |        |   | 2008 |   |        | 2007 | 
|                                          |  | (Dollars in thousands)  |       
|Taxes calculated at statutory rate        |  | $                       | 59,053 |   |      | $ | 44,253 |      |  | $ | 44,014 |  
|Increase (decrease) resulting from:       |  |                         |        |   |      |   |        |      |  |   |        |  
|Tax-exempt interest                       |  |                         | (1,825 | ) |      |   | (1,698 | )    |  |   | (1,579 | )
|Qualified Zone Academy Bond credit        |  |                         | (373   | ) |      |   | (373   | )    |  |   | (373   | )
|Qualified School Construction Bond credit |  |                         | (29    | ) |      |   |       |      |  |   |       |  
|Dividends received deduction              |  |                         |       |   |      |   | (106   | )    |  |   | (288   | )
|BOLI income                               |  |                         | (470   | ) |      |   | (704   | )    |  |   | (663   | )
|Qualified stock options                   |  |                         | 148    |   |      |   | 205    |      |  |   | 280    |  
|Other, net                                |  |                         | 340    |   |      |   | 352    |      |  |   | 213    |  
|                                          |  |                         |        |   |      |   |        |      |  |   |        |  
|Total                                     |  | $                       | 56,844 |   |      | $ | 41,929 |      |  | $ | 41,604 |  
|                                          |  |                         |        |   |      |   |        |      |  |   |        |  



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Deferred tax assets and liabilities are as follows:



|                                                 |  |                        |         |   |      |   |         |  
|------------------------------------------------ |  | ---------------------- | ------- | - | ---- | - | ------- | -
|                                                 |  | December 31,           |        
|                                                 |  | 2009                   |         |   | 2008 |  
|                                                 |  | (Dollars in thousands) |        
|Deferred tax assets:                             |  |                        |         |   |      |   |         |  
|Allowance for credit losses                      |  | $                      | 17,854  |   |      | $ | 12,605  |  
|Accrued liabilities                              |  |                        | 3,484   |   |      |   | 3,459   |  
|Certificates of deposit                          |  |                        | 64      |   |      |   | 149     |  
|Deferred compensation                            |  |                        | 338     |   |      |   | 341     |  
|Securities                                       |  |                        | 989     |   |      |   | 1,543   |  
|Restricted stock                                 |  |                        | 791     |   |      |   | 630     |  
|                                                 |  |                        |         |   |      |   |         |  
|Total deferred tax assets                        |  |                        | 23,520  |   |      |   | 18,727  |  
|                                                 |  |                        |         |   |      |   |         |  
|Deferred tax liabilities:                        |  |                        |         |   |      |   |         |  
|Loans                                            |  | $                      | (325    | ) |      | $ | (159    | )
|Goodwill and core deposit intangibles            |  |                        | (13,032 | ) |      |   | (16,902 | )
|Unrealized gain on available for sale securities |  |                        | (9,049  | ) |      |   | (5,305  | )
|Bank premises and equipment                      |  |                        | (6,019  | ) |      |   | (3,298  | )
|Deferred loan fees and costs                     |  |                        | (399    | ) |      |   | (322    | )
|Investments in partnerships                      |  |                        | (7,857  | ) |      |   | (6,909  | )
|Prepaid expenses                                 |  |                        | (707    | ) |      |   | (851    | )
|FHLB dividends                                   |  |                        |        |   |      |   | (41     | )
|Other                                            |  |                        | (8      | ) |      |   | (22     | )
|                                                 |  |                        |         |   |      |   |         |  
|Total deferred tax liabilities.                  |  |                        | (37,396 | ) |      |   | (33,809 | )
|                                                 |  |                        |         |   |      |   |         |  
|Net deferred tax liabilities                     |  | $                      | (13,876 | ) |      | $ | (15,082 | )
|                                                 |  |                        |         |   |      |   |         |  

The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income
during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies in making this assessment. Based upon
the level of historical taxable income and estimates of future taxable income over the periods for which the deferred tax assets are deductible, management believes it is more likely than not the Company will realize the benefits of these deductible
differences at December 31, 2009. The change in the Companys deferred tax assets and liabilities include purchase accounting adjustments.

ASC Topic 740 prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return.
Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all
relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that
previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the
more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. The Company had no tax positions at December 31, 2009 that did not meet the
more-likely-than not recognition threshold. ASC Topic 740 also provides guidance on the accounting for and disclosure of unrecognized tax benefits, interest and penalties. The Companys policy for recording interest and penalties associated
with audits is to record such items as a



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



component of income before taxes. Penalties are recorded in other (gains) losses and interest paid or received is recorded in interest expense or interest income, respectively, in the
consolidated statement of income. As of December 31, 2009, the Company has not accrued any interest and penalties related to unrecognized tax benefits. The Company has identified its federal tax return and its state tax return in Texas as
major tax jurisdictions, as defined. The only periods subject to examination for the Companys federal return are the 2006 through 2008 tax years.

13. STOCK INCENTIVE PROGRAMS

At December 31, 2009, the Company had
three stock-based employee compensation plans and four stock option plans assumed in connection with acquisitions under which no additional options will be granted. The Company accounts for stock-based employee compensation plans using the fair
value-based method of accounting in accordance with ASC Topic 718.ASC Topic 718 was effective for companies in 2006; however, the Company has been recognizing compensation expense since January 1, 2003. The Company recognized $1.5
million in stock-based compensation expense for each year ended December 31, 2009 and 2008 and $2.0 million for the year ended December 31, 2007. There was approximately $383,000, $334,000 and $409,000 of income tax benefit recorded for
the stock-based compensation expense for the same periods, respectively.

During 1995, the Companys Board of Directors
approved a stock option plan (the 1995 Plan) for executive officers and key associates to purchase common stock of Bancshares. A total of 675,000 options have been granted under the 1995 Plan as of December 31, 2009. The maximum
number of shares reserved for issuance pursuant to options granted under the 1995 Plan was 680,000 (after two-for-one and four-for-one stock splits). Options to purchase a total of 15,000 shares of common stock of Bancshares were outstanding at
December 31, 2009, of which 7,500 options were exercisable. The 1995 Plan has expired and therefore no additional options may be issued from the 1995 Plan.

During 1998, the Companys Board of Directors and shareholders approved the Prosperity Bancshares, Inc. 1998 Stock Incentive Plan (the 1998 Plan) which authorizes the issuance of up to
920,000 (after two-for-one stock split) shares of the common stock of Bancshares under both non-qualified and incentive stock options to employees and non-qualified stock options to directors who are not employees. The 1998 Plan also provides for
the granting of restricted stock awards, stock appreciation rights, phantom stock awards and performance awards on substantially similar terms. A total of 834,500 options have been granted under the 1998 Plan as of December 31, 2009. Options to
purchase a total of 591,957 shares of common stock of Bancshares were outstanding at December 31, 2009, of which 393,232 options were exercisable. The 1998 Plan has expired and therefore no additional options may be issued from the 1995 Plan.

In December 2004, the Companys Board of Directors established the Prosperity Bancshares, Inc. 2004 Stock Incentive Plan
(the 2004 Plan), which was approved by the Companys shareholders on February 23, 2005. The 2004 Plan authorizes the issuance of up to 1,250,000 shares of common stock upon the exercise of options granted under the 2004 Plan or
upon the grant or exercise, as the case may be, of other awards granted under the 2004 Plan. The 2004 Plan provides for the granting of incentive and nonqualified stock options to employees and nonqualified stock options to directors who are not
employees. The 2004 Plan also provides for the granting of shares of restricted stock, stock appreciation rights, phantom stock awards and performance awards on substantially similar terms. A total of 199,500 options and 447,591 shares of restricted
stock have been granted under the 2004 Plan as of December 31, 2009. Options to purchase a total of 199,500 shares of common stock of Bancshares were outstanding at December 31, 2009, of which 29,750 were exercisable. At December 31,
2009, 385,898 shares of restricted stock were outstanding and subject to forfeiture restrictions. Remaining shares available for grant under the 2004 Plan totaled 602,909 at December 31, 2009.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



On September 1, 2002, the Company acquired Paradigm Bancorporation. The options to
purchase shares of Paradigm common stock outstanding at the effective time of the transaction were converted into options to purchase a total of 34,673 shares of Bancshares common stock at exercise prices ranging from $8.28 to $11.50 per share. The
converted options are governed by the original plan under which they were issued. Options to purchase a total of 760 shares of common stock of Bancshares were outstanding at December 31, 2009.

On March 1, 2005, the Company acquired First Capital Bankers, Inc. The options to purchase shares of First Capital Bankers, Inc. common
stock outstanding at the effective time of the transaction were converted into options to purchase a total of 233,779 shares of Bancshares common stock at exercise prices ranging from $8.60 to $20.26 per share. The converted options are governed by
the original plans under which they were issued. Options to purchase a total of 8,957 shares of common stock of Bancshares were outstanding at December 31, 2009.

On April 1, 2006, the Company acquired SNB Bancshares, Inc. The options to purchase shares of SNB Bancshares, Inc. common stock outstanding at the effective time of the transaction were converted
into options to purchase a total of 467,578 shares of Bancshares common stock at exercise prices ranging from $8.15 to $19.65 per share. The converted options are governed by the original plan under which they were issued. Options to purchase a
total of 20,904 shares of common stock of Bancshares were outstanding at December 31, 2009.

On January 31, 2007,
the Company acquired Texas United Bancshares, Inc. The options to purchase shares of Texas United Bancshares, Inc. common stock outstanding at the effective time of the transaction were converted into options to purchase a total of 179,956 shares of
Bancshares common stock at exercise prices ranging from $5.00 to $20.16 per share. The converted options are governed by the original plan under which they were issued. Options to purchase a total of 18,500 shares of common stock of Bancshares were
outstanding at December 31, 2009.

Stock options are issued at the current market price on the date of the grant, subject
to a pre-determined vesting period with a contractual term of 10 years. Options assumed in connection with acquisitions have contractual terms as established in the original option grant agreements entered into prior to acquisition. The fair value
of stock options granted is estimated at the date of grant using the Black-Scholes option-pricing model. Stock-based compensation expense is recognized ratably over the requisite service period for all awards.

The fair value of options was estimated using an option-pricing model with the following weighted average assumptions:



|                        |  |              |   |  |       |   |  |       |  
|----------------------- |  | ------------ | - |  | ----- | - |  | ----- | -
|                        |  | December 31, |  
|                        |  | 2009         |   |  | 2008  |   |  | 2007  |  
|Expected life in years  |  | 5.12         |   |  | 5.03  |   |  | 4.69  |  
|Risk free interest rate |  | 3.94         | % |  | 4.13  | % |  | 4.20  | %
|Volatility(1)           |  | 21.25        | % |  | 21.21 | % |  | 21.04 | %
|Dividend yield          |  | 1.25         | % |  | 1.21  | % |  | 1.23  | %



|(1) | Volatility is a measure of fluctuations in the Companys share price.
|--- | ---------------------------------------------------------------------



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



A summary of changes in outstanding vested and unvested options during the three year
period ended December 31, 2009 is set forth below:



|                                                      |  |                  |   |  |                              |       |                                                    |      |                         |   |       
|----------------------------------------------------- |  | ---------------- | - |  | ---------------------------- | ----- | -------------------------------------------------- | ---- | ----------------------- | - | ------
|                                                      |  | Number ofOptions |   |  | WeightedAverageExercisePrice |       | WeightedAverageRemainingContractualTerm (in years) |      | AggregateIntrinsicValue
|                                                      |  | (In thousands)   |   |  |                              |       |                                                    |      | (In thousands)         
|Options outstanding, January 1, 2007                  |  | 1,142            |   |  | $                            | 21.68 |                                                    |      |                         |   |       
|Options granted                                       |  | 235              |   |  |                              | 17.84 |                                                    |      |                         |   |       
|Options forfeited                                     |  | (27              | ) |  |                              | 24.42 |                                                    |      |                         |   |       
|Options exercised                                     |  | (262             | ) |  |                              | 13.29 |                                                    |      |                         |   |       
|Options outstanding, December 31, 2007                |  | 1,088            |   |  | $                            | 23.26 |                                                    | 5.87 |                         | $ | 6,668 
|                                                      |  |                  |   |  |                              |       |                                                    |      |                         |   |       
|Options granted                                       |  | 5                |   |  |                              | 24.43 |                                                    |      |                         |   |       
|Options forfeited                                     |  | (15              | ) |  |                              | 21.11 |                                                    |      |                         |   |       
|Options exercised                                     |  | (161             | ) |  |                              | 16.16 |                                                    |      |                         |   |       
|Options outstanding, December 31, 2008                |  | 917              |   |  | $                            | 24.58 |                                                    | 5.36 |                         | $ | 4,600 
|                                                      |  |                  |   |  |                              |       |                                                    |      |                         |   |       
|Options granted                                       |  | 72               |   |  |                              | 30.64 |                                                    |      |                         |   |       
|Options forfeited                                     |  | (20              | ) |  |                              | 28.40 |                                                    |      |                         |   |       
|Options exercised                                     |  | (113             | ) |  |                              | 17.86 |                                                    |      |                         |   |       
|Options outstanding, December 31, 2009                |  | 856              |   |  | $                            | 25.88 |                                                    | 4.97 |                         | $ | 12,481
|                                                      |  |                  |   |  |                              |       |                                                    |      |                         |   |       
|Options vested or expected to vest, December 31, 2009 |  | 830              |   |  | $                            | 25.60 |                                                    | 4.90 |                         | $ | 12,343
|Options exercisable, December 31,2009                 |  | 480              |   |  | $                            | 23.37 |                                                    | 4.03 |                         | $ | 8,201 
|                                                      |  |                  |   |  |                              |       |                                                    |      |                         |   |       

The total intrinsic value of the options exercised
during the year ended December 31, 2009 and 2008 was $2.6 million and $2.2 million, respectively. The total fair value of shares vested and forfeited during the year ended December 31, 2009 was $1.4 million and $101,000, respectively.

A summary of changes in unvested options during the three year period ended December 31, 2009 is set forth below:



|                                                |  |                  |   |  |                                     |     
|----------------------------------------------- |  | ---------------- | - |  | ----------------------------------- | ----
|                                                |  | Number ofOptions |   |  | WeightedAverage GrantDate FairValue
|                                                |  | (In thousands)   |   |  |                                    
|Unvested options outstanding, January 1, 2007   |  | 778              |   |  | $                                   | 5.93
|Options granted                                 |  | 55               |   |  |                                     | 8.28
|Unvested options forfeited                      |  | (27              | ) |  |                                     | 5.17
|Options vested                                  |  | (99              | ) |  |                                     | 3.23
|                                                |  |                  |   |  |                                     |     
|Unvested options outstanding, December 31, 2007 |  | 707              |   |  | $                                   | 6.52
|Options granted                                 |  | 5                |   |  |                                     | 3.85
|Unvested options forfeited                      |  | (4               | ) |  |                                     | 5.52
|Options vested                                  |  | (179             | ) |  |                                     | 5.54
|                                                |  |                  |   |  |                                     |     
|Unvested options outstanding, December 31, 2008 |  | 529              |   |  | $                                   | 6.83
|Options granted                                 |  | 72               |   |  |                                     | 6.31
|Unvested options forfeited                      |  | (15              | ) |  |                                     | 6.98
|Options vested                                  |  | (210             | ) |  |                                     | 6.63
|                                                |  |                  |   |  |                                     |     
|Unvested options outstanding, December 31, 2009 |  | 376              |   |  | $                                   | 6.78
|                                                |  |                  |   |  |                                     |     



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The Company received $2.0 million, $2.6 million and $3.5 million in cash from the
exercise of stock options during the years ended December 31, 2009, 2008 and 2007, respectively. There was no tax benefit realized from exercises of the stock-based compensation arrangements during the years ended December 31, 2009 and
2008.

As of December 31, 2009, there was $13.1 million of total unrecognized compensation expense related to stock-based
compensation arrangements. That cost is expected to be recognized over a weighted average period of 2.9 years.

The following
table presents information relating to the Companys stock options outstanding at December 31, 2009:



|                         |  |                     |  |                               |       |                                       |      |                   |         |                               |   |      
|------------------------ |  | ------------------- |  | ----------------------------- | ----- | ------------------------------------- | ---- | ----------------- | ------- | ----------------------------- | - | -----
|                         |  | Options Outstanding |  | Options Exercisable          
|Range of Exercise Prices |  | NumberOutstanding   |  | WeightedAverageExercise Price |       | WeightedAverage RemainingLife (years) |      | NumberOutstanding |         | WeightedAverageExercise Price
|$  0.00 - $  5.00        |  |                    |  | $                             |      |                                       |     |                   |        |                               | $ |     
|$  5.01 - $10.00         |  | 11,931              |  |                               | 8.43  |                                       | 1.46 |                   | 11,931  |                               |   | 8.43 
|$10.01 - $15.00          |  | 36,888              |  |                               | 10.10 |                                       | 1.01 |                   | 36,888  |                               |   | 10.10
|$15.01 - $20.00          |  | 101,302             |  |                               | 18.11 |                                       | 3.17 |                   | 101,302 |                               |   | 18.11
|$20.01 - $25.00          |  | 45,625              |  |                               | 23.63 |                                       | 4.80 |                   | 34,750  |                               |   | 23.47
|$25.01 - $30.00          |  | 517,832             |  |                               | 26.53 |                                       | 4.85 |                   | 284,982 |                               |   | 27.25
|$30.01 - $35.00          |  | 142,000             |  |                               | 32.31 |                                       | 8.16 |                   | 9,750   |                               |   | 32.96
|                         |  |                     |  |                               |       |                                       |      |                   |         |                               |   |      
|                         |  | 855,578             |  | $                             | 25.88 |                                       | 4.97 |                   | 479,603 |                               | $ | 23.37
|                         |  |                     |  |                               |       |                                       |      |                   |         |                               |   |      

14. OTHER NONINTEREST INCOME AND EXPENSE

Other noninterest income and expense totals are presented in the following tables. Components of these totals exceeding 1% of the aggregate
of total net interest income and total noninterest income for any of the years presented and other amounts the Company elected to present are stated separately.



|                                          |  |                          |        |      |   |        |  |   |       
|----------------------------------------- |  | ------------------------ | ------ | ---- | - | ------ |  | - | ------
|                                          |  | Years Ended December 31,
|                                          |  | 2009                     |        | 2008 |   | 2007  
|                                          |  | (Dollars in thousands)  
|Other noninterest income                  |  |                          |        |      |   |        |  |   |       
|Banking related service fees              |  | $                        | 2,009  |      | $ | 1,963  |  | $ | 1,737 
|Brokered mortgage income                  |  |                          | 305    |      |   | 330    |  |   | 679   
|Income from leased assets                 |  |                          | 318    |      |   | 1,079  |  |   | 1,323 
|BOLI                                      |  |                          | 1,344  |      |   | 2,011  |  |   | 1,893 
|Other                                     |  |                          | 4,379  |      |   | 1,202  |  |   | 6,268 
|                                          |  |                          |        |      |   |        |  |   |       
|Total                                     |  | $                        | 8,355  |      | $ | 6,585  |  | $ | 11,900
|                                          |  |                          |        |      |   |        |  |   |       
|Other noninterest expense                 |  |                          |        |      |   |        |  |   |       
|Communications expense                    |  | $                        | 8,466  |      | $ | 6,582  |  | $ | 6,351 
|Ad valorem and franchise taxes            |  |                          | 3,561  |      |   | 2,884  |  |   | 2,462 
|Regulatory assessments and FDIC insurance |  |                          | 13,662 |      |   | 1,843  |  |   | 1,035 
|Printing and supply expense               |  |                          | 2,250  |      |   | 1,832  |  |   | 1,699 
|Travel and development expense            |  |                          | 1,749  |      |   | 2,155  |  |   | 1,520 
|Professional fee expense                  |  |                          | 4,419  |      |   | 1,688  |  |   | 1,707 
|Other                                     |  |                          | 11,536 |      |   | 6,457  |  |   | 5,552 
|                                          |  |                          |        |      |   |        |  |   |       
|Total                                     |  | $                        | 45,643 |      | $ | 23,441 |  | $ | 20,326
|                                          |  |                          |        |      |   |        |  |   |       



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



15. PROFIT SHARING PLAN

The Company has adopted a profit sharing plan pursuant to Section 401(k) of the Internal Revenue Code whereby the participants may
contribute a percentage of their compensation as permitted under the Code. Matching contributions are made at the discretion of the Company. Presently, the Company matches 50% of an employees contributions,
up to 15% of such employees compensation, not to exceed the maximum allowable pursuant to the Internal Revenue Code and excluding catch-up contributions. Such matching contributions were approximately $1.9 million,
$1.7 million and $1.6 million for the years ended December 31, 2009, 2008 and 2007, respectively.

16. OFF-BALANCE SHEET ARRANGEMENTS,
COMMITMENTS AND CONTINGENCIES

The following table summarizes the Companys contractual obligations and other
commitments to make future payments as of December 31, 2009 (other than deposit obligations and securities sold under repurchase agreements). The Companys future cash payments associated with its contractual obligations pursuant to its
junior subordinated debentures, FHLB notes payable and operating leases as of December 31, 2009 are summarized below. Payments for junior subordinated debentures include interest of $73.4 million that will be paid over the future periods. The
future interest payments were calculated using the current rate in effect at December 31, 2009. With respect to floating interest rates, the payments were determined based on the 3-month LIBOR in effect at December 31, 2009. The current
principal balance of the junior subordinated debentures at December 31, 2009 was $92.3 million. Payments for FHLB notes payable include interest of $5.0 million that will be paid over the future periods. Payments related to leases are based on
actual payments specified in underlying contracts.



|                                     |  |                        |        |                                      |   |                                     |  |                |        |       |   |         |  |   |        
|------------------------------------ |  | ---------------------- | ------ | ------------------------------------ | - | ----------------------------------- |  | -------------- | ------ | ----- | - | ------- |  | - | -------
|                                     |  | Payments due in:      
|                                     |  | 1 year or less         |        | More than 1year but lessthan 3 years |   | 3 years ormore but lessthan 5 years |  | 5 yearsor more |        | Total
|                                     |  | (Dollars in thousands)
|Junior subordinated debentures       |  | $                      | 3,057  |                                      | $ | 6,114                               |  | $              | 6,114  |       | $ | 150,402 |  | $ | 165,687
|Federal Home Loan Bank notes payable |  |                        | 12,388 |                                      |   | 4,062                               |  |                | 3,258  |       |   | 11,458  |  |   | 31,166 
|Operating leases                     |  |                        | 4,219  |                                      |   | 6,440                               |  |                | 3,828  |       |   | 796     |  |   | 15,283 
|                                     |  |                        |        |                                      |   |                                     |  |                |        |       |   |         |  |   |        
|Total.                               |  | $                      | 19,664 |                                      | $ | 16,616                              |  | $              | 13,200 |       |   | 162,656 |  | $ | 212,136
|                                     |  |                        |        |                                      |   |                                     |  |                |        |       |   |         |  |   |        

Off-Balance Sheet Items

In the normal course of business, the Company enters into various transactions, which, in accordance with accounting principles generally
accepted in the United States, are not included in its consolidated balance sheets. The Company enters into these transactions to meet the financing needs of its customers. These transactions include commitments to extend credit and standby letters
of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The Companys commitments associated with outstanding standby letters of credit and
commitments to extend credit expiring by period as of December 31, 2009 are summarized below.



|                             |  |                        |         |                                      |   |                                     |  |                |       |       |   |         |  |   |        
|---------------------------- |  | ---------------------- | ------- | ------------------------------------ | - | ----------------------------------- |  | -------------- | ----- | ----- | - | ------- |  | - | -------
|                             |  | 1 year or less         |         | More than 1year but lessthan 3 years |   | 3 years ormore but lessthan 5 years |  | 5 yearsor more |       | Total
|                             |  | (Dollars in thousands)
|Standby letters of credit    |  | $                      | 11,147  |                                      | $ | 2,212                               |  | $              | 60    |       | $ |        |  | $ | 13,419 
|Commitments to extend credit |  |                        | 327,816 |                                      |   | 22,203                              |  |                | 3,193 |       |   | 143,529 |  |   | 496,741
|                             |  |                        |         |                                      |   |                                     |  |                |       |       |   |         |  |   |        
|Total                        |  | $                      | 338,963 |                                      | $ | 24,415                              |  | $              | 3,253 |       | $ | 143,529 |  | $ | 510,160
|                             |  |                        |         |                                      |   |                                     |  |                |       |       |   |         |  |   |        

Standby Letters of Credit.Standby letters of
credit are written conditional commitments issued by the Company to guarantee the performance of a customer to a third party. In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Company
would be required to fund the commitment. The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount of the commitment. If the commitment is funded, the Company would be entitled to
seek recovery from the customer. The Companys policies generally require that standby letter of credit arrangements contain security and debt covenants similar to those contained in loan agreements.

Commitments to Extend Credit.The Company enters into contractual commitments to extend credit, normally with fixed expiration dates
or termination clauses, at specified rates and for specific purposes. Substantially all of the Companys commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding. The Company
minimizes its exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures. Management assesses the credit risk associated with certain commitments to extend credit in determining the level of the
allowance for credit losses. Since many of the commitments are expected to expire without being fully drawn upon, the total commitment amounts disclosed above do not necessarily represent future cash funding requirements. At December 31, 2009,
$79.1 million of commitments to extend credit have fixed rates ranging from 2.50% to 18.00%.

The Company evaluates customer
creditworthiness on a case-by-case basis. The amount of collateral obtained, if considered necessary by the Company upon extension of credit, is based on managements credit evaluation of the customer.

LeasesThe following table presents a summary of non-cancelable future operating lease commitments as of December 31, 2009
(dollars in thousands):



|           |  |   |       
|---------- |  | - | ------
|2010       |  | $ | 4,219 
|2011       |  |   | 3,405 
|2012       |  |   | 3,035 
|2013       |  |   | 2,342 
|2014       |  |   | 1,486 
|Thereafter |  |   | 796   
|           |  |   |       
|Total      |  | $ | 15,283
|           |  |   |       

It is expected that in the normal course of business,
expiring leases will be renewed or replaced by leases on other property or equipment.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Rent expense under all noncancelable operating lease obligations aggregated
approximately $5.1 million for the year ended December 31, 2009, $4.7 million for the year ended December 31, 2008 and $3.9 million for the year ended December 31, 2007.

LitigationThe Company has been named as a defendant in various legal actions arising in the normal course of business. In the opinion
of management, after reviewing such claims with outside counsel, resolution of such matters will not have a materially adverse impact on the consolidated financial statements.

17. REGULATORY MATTERS

The Company and the Bank are subject to various
regulatory capital requirements administered by the federal banking agencies. Any institution that fails to meet its minimum capital requirements is subject to actions by regulators that could have a direct material effect on the Companys and
the Banks financial statements. Under the capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines based on the Banks assets, liabilities and certain
off-balance-sheet items as calculated under regulatory accounting practices. The Companys and the Banks capital amounts and the Banks classification under the regulatory framework for prompt corrective action are also subject to
qualitative judgments by the regulators about the components, risk weightings and other factors.

To meet the capital adequacy
requirements, the Company and the Bank must maintain minimum capital amounts and ratios as defined in the regulations. As of December 31, 2009, the Company and the Bank met all capital adequacy requirements to which they are subject.

As of December 31, 2009, the most recent notification from the FDIC categorized the Bank 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 and Tier I leverage ratios as set forth in the table. There have been no conditions
or events since that notification which management believes have changed the Banks category.

The following is a summary
of the Companys and the Banks capital ratios at December 31, 2009 and 2008:



|                                           |  |                        |         |       |                              |   |        |                                                                              |         |  |      |        |  |       |  |    
|------------------------------------------ |  | ---------------------- | ------- | ----- | ---------------------------- | - | ------ | ---------------------------------------------------------------------------- | ------- |  | ---- | ------ |  | ----- |  | ---
|                                           |  | Actual                 |         |       | For CapitalAdequacy Purposes |   |        | To Be Categorized AsWell Capitalized UnderPrompt CorrectiveAction
Provisions
|                                           |  | Amount                 |         | Ratio |                              |   | Amount |                                                                              | Ratio   |  |      | Amount |  | Ratio
|                                           |  | (Dollars in thousands)
|CONSOLIDATED:                              |  |                        |         |       |                              |   |        |                                                                              |         |  |      |        |  |       |  |    
|As of December 31, 2009:                   |  |                        |         |       |                              |   |        |                                                                              |         |  |      |        |  |       |  |    
|Total Capital(to Risk Weighted Assets)     |  | $                      | 562,295 |       | 13.86                        | % |        | $                                                                            | 324,654 |  | 8.00 | %      |  | N/A   |  | N/A
|Tier I Capital(to Risk Weighted Assets)    |  |                        | 511,567 |       | 12.61                        |   |        |                                                                              | 162,327 |  | 4.00 |        |  | N/A   |  | N/A
|Tier I Capital(to Average Tangible Assets) |  |                        | 511,567 |       | 6.47                         |   |        |                                                                              | 237,199 |  | 3.00 |        |  | N/A   |  | N/A
|                                           |  |                        |         |       |                              |  
|As of December 31, 2008:                   |  |                        |         |       |                              |   |        |                                                                              |         |  |      |        |  |       |  |    
|Total Capital(to Risk Weighted Assets)     |  | $                      | 458,872 |       | 11.17                        | % |        | $                                                                            | 328,686 |  | 8.00 | %      |  | N/A   |  | N/A
|Tier I Capital(to Risk Weighted Assets)    |  |                        | 421,902 |       | 10.27                        |   |        |                                                                              | 164,343 |  | 4.00 |        |  | N/A   |  | N/A
|Tier I Capital(to Average Tangible Assets) |  |                        | 421,902 |       | 5.68                         |   |        |                                                                              | 222,931 |  | 3.00 |        |  | N/A   |  | N/A



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|                                           |  |                        |         |       |                              |   |        |                                                                              |         |  |      |        |  |       |         |  |       |  
|------------------------------------------ |  | ---------------------- | ------- | ----- | ---------------------------- | - | ------ | ---------------------------------------------------------------------------- | ------- |  | ---- | ------ |  | ----- | ------- |  | ----- | -
|                                           |  | Actual                 |         |       | For CapitalAdequacy Purposes |   |        | To Be Categorized AsWell Capitalized UnderPrompt CorrectiveAction
Provisions |        
|                                           |  | Amount                 |         | Ratio |                              |   | Amount |                                                                              | Ratio   |  |      | Amount |  | Ratio |        
|                                           |  | (Dollars in thousands) |        
|PROSPERITY BANK® ONLY:                     |  |                        |         |       |                              |   |        |                                                                              |         |  |      |        |  |       |         |  |       |  
|As of December 31, 2009:                   |  |                        |         |       |                              |   |        |                                                                              |         |  |      |        |  |       |         |  |       |  
|Total Capital(to Risk Weighted Assets)     |  | $                      | 548,906 |       | 13.55                        | % |        | $                                                                            | 324,166 |  | 8.00 | %      |  | $     | 405,208 |  | 10.00 | %
|Tier I Capital(to Risk Weighted Assets)    |  |                        | 498,255 |       | 12.30                        |   |        |                                                                              | 162,083 |  | 4.00 |        |  |       | 243,125 |  | 6.00  |  
|Tier I Capital(to Average Tangible Assets) |  |                        | 498,255 |       | 6.31                         |   |        |                                                                              | 236,994 |  | 3.00 |        |  |       | 394,991 |  | 5.00  |  
|                                           |  |                        |         |       |                              |  
|As of December 31, 2008:                   |  |                        |         |       |                              |   |        |                                                                              |         |  |      |        |  |       |         |  |       |  
|Total Capital(to Risk Weighted Assets)     |  | $                      | 443,311 |       | 10.91                        | % |        | $                                                                            | 325,034 |  | 8.00 | %      |  | $     | 406,292 |  | 10.00 | %
|Tier I Capital(to Risk Weighted Assets)    |  |                        | 406,341 |       | 10.00                        |   |        |                                                                              | 162,517 |  | 4.00 |        |  |       | 243,775 |  | 6.00  |  
|Tier I Capital(to Average Tangible Assets) |  |                        | 406,341 |       | 5.48                         |   |        |                                                                              | 222,605 |  | 3.00 |        |  |       | 371,008 |  | 5.00  |  

Dividends
paid by Bancshares and the Bank are subject to restrictions by certain regulatory agencies. Dividends paid by Bancshares during the years ended December 31, 2009, 2008 and 2007 were $26.2 million, $23.4 million and $20.3 million, respectively.
Dividends paid by the Bank to Bancshares during the years ended December 31, 2009, 2008 and 2007 were $24.5 million, $63.0 million and $69.0 million, respectively.

18. JUNIOR SUBORDINATED DEBENTURES

At December 31, 2009 and 2008, the
Company had outstanding $92.3 million in junior subordinated debentures issued to the Companys unconsolidated subsidiary trusts.

A summary of pertinent information related to the Companys eight issues of junior subordinated debentures outstanding at December 31, 2009 is set forth in the table below:



|                               |  |                |  |                                     |            |                  |                                           |                                      |   |                 |  |               
|------------------------------ |  | -------------- |  | ----------------------------------- | ---------- | ---------------- | ----------------------------------------- | ------------------------------------ | - | --------------- |  | --------------
|Description                    |  | Issuance Date  |  | TrustPreferredSecuritiesOutstanding |            | Interest Rate(1) |                                           | JuniorSubordinatedDebt Owedto Trusts |   | MaturityDate(2)
|Prosperity Statutory Trust II  |  | July 31, 2001  |  | $                                   | 15,000,000 |                  | 3 month LIBOR+ 3.58%, not to
exceed12.50% |                                      | $ | 15,464,000      |  | July 31, 2031 
|                               |  |                |  |                                     |           
|Prosperity Statutory Trust III |  | Aug. 15, 2003  |  |                                     | 12,500,000 |                  | 3 month LIBOR + 3.00%(3)                  |                                      |   | 12,887,000      |  | Sept. 17, 2033
|                               |  |                |  |                                     |           
|Prosperity Statutory Trust IV  |  | Dec. 30, 2003  |  |                                     | 12,500,000 |                  | 3 month LIBOR + 2.85%(4)                  |                                      |   | 12,887,000      |  | Dec. 30, 2033 
|                               |  |                |  |                                     |           
|SNB Capital Trust IV(5)        |  | Sept. 25, 2003 |  |                                     | 10,000,000 |                  | 3 month LIBOR + 3.00%                     |                                      |   | 10,310,000      |  | Sept. 25, 2033
|                               |  |                |  |                                     |           
|TXUI Statutory Trust I(6)      |  | Sept. 07, 2000 |  |                                     | 7,000,000  |                  | 10.60%                                    |                                      |   | 7,210,000       |  | Sept. 07, 2030
|                               |  |                |  |                                     |           
|TXUI Statutory Trust II(6)     |  | Dec. 19, 2003  |  |                                     | 5,000,000  |                  | 3 month LIBOR + 2.85%(7)                  |                                      |   | 5,155,000       |  | Dec. 19, 2033 
|                               |  |                |  |                                     |           
|TXUI Statutory Trust III(6)    |  | Nov. 30, 2005  |  |                                     | 15,500,000 |                  | 3 month LIBOR + 1.39%                     |                                      |   | 15,980,000      |  | Dec. 15, 2035 
|                               |  |                |  |                                     |           
|TXUI Statutory Trust IV(6)     |  | Mar. 31, 2006  |  |                                     | 12,000,000 |                  | 3 month LIBOR + 1.39%                     |                                      |   | 12,372,000      |  | June 30, 2036 
|                               |  |                |  |                                     |            |                  |                                           |                                      |   |                 |  |               
|TOTAL:                         |  |                |  |                                     |            |                  |                                           |                                      | $ | 92,265,000      |  |               
|                               |  |                |  |                                     |            |                  |                                           |                                      |   |                 |  |               



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)





|(1) | The 3-month LIBOR in effect as of December 31, 2009 was 0.25063%.
|--- | -----------------------------------------------------------------

|(2) | All debentures are callable five years from issuance date except for TXUI Statutory Trust I which is callable ten years from issuance date.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------

|(3) | The debentures bore a fixed interest rate of 6.50% until September 17, 2008, when the rate began to float on a quarterly basis based on the 3-month LIBOR plus
3.00%.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | The debentures bore a fixed interest rate of 6.50% until December 30, 2008, when the rate began to float on a quarterly basis based on the 3-month LIBOR plus
2.85%.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(5) | Assumed in connection with the SNB acquisition on April 1, 2006.
|--- | ----------------------------------------------------------------

|(6) | Assumed in connection with the TXUI acquisition on January 31, 2007.
|--- | --------------------------------------------------------------------

|(7) | The debentures bore a fixed interest rate until January 23, 2009, when the rate began to float on a quarterly basis based on the 3-month LIBOR plus 2.85%.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

Each of the trusts is a capital or statutory business trust organized for the sole purpose of issuing trust
securities and investing the proceeds in the Companys junior subordinated debentures. The preferred trust securities of each trust represent preferred beneficial interests in the assets of the respective trusts and are subject to mandatory
redemption upon payment of the junior subordinated debentures held by the trust. The common securities of each trust are wholly-owned by the Company. Each trusts ability to pay amounts due on the trust preferred securities is solely dependent
upon the Company making payment on the related junior subordinated debentures. The debentures, which are the only assets of each trust, are subordinate and junior in right of payment to all of the Companys present and future senior
indebtedness. The Company has fully and unconditionally guaranteed each trusts obligations under the trust securities issued by such trust to the extent not paid or made by each trust, provided such trust has funds available for such
obligations.

Under the provisions of each issue of the debentures, the Company has the right to defer payment of interest on
the debentures at any time, or from time to time, for periods not exceeding five years. If interest payments on either issue of the debentures are deferred, the distributions on the applicable trust preferred securities and common securities will
also be deferred.



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



19. PARENT COMPANY ONLY FINANCIAL STATEMENTS

PROSPERITY BANCSHARES, INC.

(Parent Company Only)

CONDENSED BALANCE SHEETS



|                                                                     |  |                        |           |   |      |   |           |  
|-------------------------------------------------------------------- |  | ---------------------- | --------- | - | ---- | - | --------- | -
|                                                                     |  | December 31,           |          
|                                                                     |  | 2009                   |           |   | 2008 |  
|                                                                     |  | (Dollars in thousands) |          
|ASSETS                                                               |  |                        |           |   |      |   |           |  
|Cash                                                                 |  | $                      | 562       |   |      | $ | 6,345     |  
|Investment in subsidiary                                             |  |                        | 1,423,499 |   |      |   | 1,325,115 |  
|Investment in capital and statutory trusts                           |  |                        | 2,765     |   |      |   | 2,765     |  
|Goodwill                                                             |  |                        | 3,982     |   |      |   | 4,335     |  
|Other assets                                                         |  |                        | 13,511    |   |      |   | 9,760     |  
|                                                                     |  |                        |           |   |      |   |           |  
|TOTAL                                                                |  | $                      | 1,444,319 |   |      | $ | 1,348,320 |  
|                                                                     |  |                        |           |   |      |   |           |  
|LIABILITIES AND SHAREHOLDERS EQUITY                                 |  |                        |           |   |      |   |           |  
|LIABILITIES:                                                         |  |                        |           |   |      |   |           |  
|Accrued interest payable and other liabilities                       |  | $                      | 809       |   |      | $ | 949       |  
|Junior subordinated debentures                                       |  |                        | 92,265    |   |      |   | 92,265    |  
|                                                                     |  |                        |           |   |      |   |           |  
|Total liabilities                                                    |  |                        | 93,074    |   |      |   | 93,214    |  
|                                                                     |  |                        |           |   |      |   |           |  
|SHAREHOLDERS EQUITY:                                                |  |                        |           |   |      |   |           |  
|Common stock                                                         |  |                        | 46,578    |   |      |   | 46,117    |  
|Capital surplus.                                                     |  |                        | 870,460   |   |      |   | 867,380   |  
|Retained earnings                                                    |  |                        | 418,008   |   |      |   | 332,363   |  
|Unrealized gain on available for sale securities, net of tax benefit |  |                        | 16,806    |   |      |   | 9,853     |  
|Less treasury stock, at cost, 37,088 shares                          |  |                        | (607      | ) |      |   | (607      | )
|                                                                     |  |                        |           |   |      |   |           |  
|Total shareholders equity                                           |  |                        | 1,351,245 |   |      |   | 1,255,106 |  
|                                                                     |  |                        |           |   |      |   |           |  
|TOTAL                                                                |  | $                      | 1,444,319 |   |      | $ | 1,348,320 |  
|                                                                     |  |                        |           |   |      |   |           |  



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



PROSPERITY BANCSHARES, INC.

(Parent Company Only)

CONDENSED STATEMENTS OF INCOME



|                                                                                      |  |                                  |         |      |   |        |  |   |       
|------------------------------------------------------------------------------------- |  | -------------------------------- | ------- | ---- | - | ------ |  | - | ------
|                                                                                      |  | For the Years Ended December 31,
|                                                                                      |  | 2009                             |         | 2008 |   | 2007  
|                                                                                      |  | (Dollars in thousands)          
|OPERATING INCOME:                                                                     |  |                                  |         |      |   |        |  |   |       
|Dividends from subsidiaries                                                           |  | $                                | 24,500  |      | $ | 63,000 |  | $ | 69,000
|Other income                                                                          |  |                                  | 164     |      |   | 265    |  |   | 383   
|                                                                                      |  |                                  |         |      |   |        |  |   |       
|Total income                                                                          |  |                                  | 24,664  |      |   | 63,265 |  |   | 69,383
|                                                                                      |  |                                  |         |      |   |        |  |   |       
|OPERATING EXPENSE:                                                                    |  |                                  |         |      |   |        |  |   |       
|Junior subordinated debentures interest expense                                       |  |                                  | 3,760   |      |   | 6,440  |  |   | 10,058
|Stock-based compensation expense (includes restricted stock)                          |  |                                  | 1,515   |      |   | 1,542  |  |   | 1,968 
|Other expenses                                                                        |  |                                  | 380     |      |   | 672    |  |   | 432   
|                                                                                      |  |                                  |         |      |   |        |  |   |       
|Total operating expense                                                               |  |                                  | 5,655   |      |   | 8,654  |  |   | 12,458
|                                                                                      |  |                                  |         |      |   |        |  |   |       
|INCOME BEFORE INCOME TAX BENEFIT AND EQUITY IN UNDISTRIBUTED EARNINGS OF SUBSIDIARIES |  |                                  | 19,009  |      |   | 54,611 |  |   | 56,925
|FEDERAL INCOME TAX BENEFIT                                                            |  |                                  | 1,792   |      |   | 2,753  |  |   | 4,018 
|                                                                                      |  |                                  |         |      |   |        |  |   |       
|INCOME BEFORE EQUITY IN UNDISTRIBUTED EARNINGS OF SUBSIDIARIES                        |  |                                  | 20,801  |      |   | 57,364 |  |   | 60,943
|EQUITY IN UNDISTRIBUTED EARNINGS OF SUBSIDIARIES                                      |  |                                  | 91,078  |      |   | 27,143 |  |   | 23,208
|                                                                                      |  |                                  |         |      |   |        |  |   |       
|NET INCOME                                                                            |  | $                                | 111,879 |      | $ | 84,507 |  | $ | 84,151
|                                                                                      |  |                                  |         |      |   |        |  |   |       



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PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



PROSPERITY BANCSHARES, INC.

(Parent Company Only)

CONDENSED STATEMENTS OF CASH FLOWS



|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  
|--------------------------------------------------------------------------------- |  | -------------------------------- | ------- | - | ---- | - | ------- | ---- |  | - | ------- | -
|                                                                                  |  | For the Years Ended December 31, |        
|                                                                                  |  | 2009                             |         |   | 2008 |   |         | 2007 | 
|                                                                                  |  | (Dollars in thousands)           |        
|CASH FLOWS FROM OPERATING ACTIVITIES:                                             |  |                                  |         |   |      |   |         |      |  |   |         |  
|Net income                                                                        |  | $                                | 111,879 |   |      | $ | 84,507  |      |  | $ | 84,151  |  
|Adjustments to reconcile net income to net cash provided by operating activities: |  |                                  |         |   |      |   |         |      |  |   |         |  
|Equity in undistributed earnings of subsidiaries                                  |  |                                  | (91,078 | ) |      |   | (27,143 | )    |  |   | (23,208 | )
|Stock based compensation expense (includes restricted stock)                      |  |                                  | 1,515   |   |      |   | 1,543   |      |  |   | 1,968   |  
|(Increase) decrease in other assets                                               |  |                                  | (3,751  | ) |      |   | 4,512   |      |  |   | (2,065  | )
|Decrease in accrued interest payable and other liabilities                        |  |                                  | (140    | ) |      |   | (276    | )    |  |   | (8,192  | )
|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  
|Net cash provided by operating activities                                         |  |                                  | 18,425  |   |      |   | 63,143  |      |  |   | 52,654  |  
|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  
|CASH FLOWS FROM INVESTING ACTIVITIES:                                             |  |                                  |         |   |      |   |         |      |  |   |         |  
|Cash paid for acquisitions                                                        |  |                                  |        |   |      |   | (18,758 | )    |  |   | (8,629  | )
|Cash acquired from acquisitions                                                   |  |                                  |        |   |      |   | 431     |      |  |   | 5,491   |  
|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  
|Net cash used in investing activities                                             |  |                                  |        |   |      |   | (18,327 | )    |  |   | (3,138  | )
|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  
|CASH FLOWS FROM FINANCING ACTIVITIES:                                             |  |                                  |         |   |      |   |         |      |  |   |         |  
|Proceeds from stock option exercises                                              |  |                                  | 2,026   |   |      |   | 2,598   |      |  |   | 3,485   |  
|Redemption of junior subordinated debentures (net)                                |  |                                  |        |   |      |   | (20,620 | )    |  |   | (32,475 | )
|Payments of cash dividends                                                        |  |                                  | (26,234 | ) |      |   | (23,377 | )    |  |   | (20,325 | )
|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  
|Net cash used in financing activities                                             |  |                                  | (24,208 | ) |      |   | (41,399 | )    |  |   | (49,315 | )
|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  
|NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS                              |  |                                  | (5,783  | ) |      |   | 3,417   |      |  |   | 201     |  
|CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD                                    |  |                                  | 6,345   |   |      |   | 2,928   |      |  |   | 2,727   |  
|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  
|CASH AND CASH EQUIVALENTS, END OF PERIOD                                          |  | $                                | 562     |   |      | $ | 6,345   |      |  | $ | 2,928   |  
|                                                                                  |  |                                  |         |   |      |   |         |      |  |   |         |  

20. SUBSEQUENT EVENTS

On January 19, 2010, the Company announced the signing of a definitive agreement by Prosperity Bank to acquire the three (3) Texas retail bank branches of U.S. Bank. Prosperity Bank will pay a
premium for approximately $420 million in deposits, as well as purchase certain loans and other assets attributable to the branches. The three branches being acquired by the Company are the Texas locations U.S. Bank acquired from the FDIC on
October 30, 2009 when U.S. Bank acquired the nine (9) subsidiary banks of FBOP Corporation. The Texas banks were Madisonville State Bank in Madisonville, Texas; Citizens National Bank in Teague, Texas; and North Houston Bank in
Houston, Texas. The agreement has been approved by the Board of Directors of both banks and is expected to close during the first quarter of 2010, although delays could occur. The transaction is subject to certain conditions, including
customary regulatory approvals.

On February 8, 2010, the Company announced the signing of a definitive agreement by
Prosperity Bank to acquire the nineteen (19) Texas retail bank branches of First Bank, a Missouri state-chartered bank. Prosperity Bank will pay a premium of 5.5% for approximately $500 million in deposits, as well as purchase approximately



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##### Table of Contents

##### Index to Financial Statements

PROSPERITY BANCSHARES, INC.® AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



$100 million in loans and other assets attributable to the branches. First Banks Texas locations are all in the Houston and Dallas metropolitan areas. After the consolidation of branches
near existing Company banking centers and the acquisition of the Houston branch of U.S. Bank, the Company will operate thirty-one (31) Dallas/Fort Worth area banking centers and fifty-eight (58) Houston area banking centers. The agreement
has been approved by the Board of Directors of both banks and is expected to close during the second quarter of 2010, although delays could occur. The transaction is subject to certain conditions, including customary regulatory approvals.



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