FORM 10-K
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                      For the Year Ended December 31, 2000

                         Commission File Number 0-23064

                             SOUTHWEST BANCORP, INC.
             (Exact name of registrant as specified in its charter)

            Oklahoma                                     73-1136584
(State or other jurisdiction of             (I.R.S. Employer Identification No.)
 incorporation or organization)

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

       Registrant's telephone number, including area code: (405) 372-2230.

        Securities registered pursuant to Section 12(b) of the Act: None.

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

                     Common Stock, par value $1.00 per share
                     ---------------------------------------
                                (Title of Class)

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

The registrant's  Common Stock is traded on the NASDAQ National Market under the
symbol OKSB. The aggregate  market value of the 2,474,426 shares of Common Stock
of the registrant issued and outstanding held by nonaffiliates on March 20, 2001
was  approximately  $55.7 million based on the closing sales price of $22.50 per
share of the registrant's Common Stock on March 27, 2001. Solely for purposes of
this calculation, it is assumed that directors,  officers and 5% stockholders of
the registrant are affiliates..

As of the  close  of  business  on  March  20,  2001,  3,794,953  shares  of the
registrant's Common Stock were outstanding.

                       Documents Incorporated By Reference

Parts I and II:   Portions  of the Annual  Report to  Shareholders  for the year
                  ended December 31, 2000 (the "Annual Report").

Part III:         Portions  of the  definitive  proxy  statement  for the Annual
                  Meeting  of  Shareholders  to be held on April  26,  2001 (the
                  "Proxy Statement").





                    CAUTION ABOUT FORWARD-LOOKING STATEMENTS

         Southwest Bancorp, Inc. ("Southwest") makes forward-looking  statements
in  this  Form  10-K  that  are  subject  to  risks  and  uncertainties.   These
forward-looking statements include:

         o        Statements of goals, intentions, and expectations;

         o        Estimates of risks and of future costs and benefits;

         o        Assessments of loan quality and of probable loan losses; and

         o        Statements  of  Southwest's  ability to achieve  financial and
                  other goals.

         These   forward-looking   statements   are   subject   to   significant
uncertainties because they are based upon or are affected by:

         o        Management's  estimates  and  projections  of future  interest
                  rates and other economic conditions;

         o        Future laws and regulations; and

         o        A variety of other matters.

         Because  of these  uncertainties,  the  actual  future  results  may be
materially  different  from  the  results  indicated  by  these  forward-looking
statements.  In  addition,   Southwest's  past  results  of  operations  do  not
necessarily indicate its future results.


                                     PART I

ITEM 1. BUSINESS

General

         Southwest is a financial  holding company  headquartered in Stillwater,
Oklahoma.  Southwest  provides  commercial and consumer banking services through
its  sole  banking   subsidiary,   Stillwater  National  Bank  &  Trust  Company
("Stillwater  National" or the "Bank").  Southwest  was organized in 1981 as the
holding company for Stillwater National,  which was chartered in 1894. Southwest
is registered as a bank holding company pursuant to the Bank Holding Company Act
of 1956, as amended (the "Holding  Company Act"). As such,  Southwest is subject
to supervision  and regulation by the Board of Governors of the Federal  Reserve
System (the "Federal  Reserve").  Southwest  became a financial  holding company
during 2000  pursuant to the Holding  Company Act.  The Bank is a national  bank
subject to supervision  and  regulation by the Office of the  Comptroller of the
Currency  (the  "OCC").  The Bank's  deposit  accounts  are  insured by the Bank
Insurance  Fund  (the  "BIF")  administered  by the  Federal  Deposit  Insurance
Corporation (the "FDIC") to the maximum permitted by law.

Products and Services

         Southwest  offers a wide variety of commercial and consumer lending and
deposit  services.  Southwest has developed  internet banking  services,  called
"DirectBanker,"  for  consumer  and  commercial  customers,  a highly  automated
lockbox,  imaging  and  information  service  for  commercial  customers  called
"Business Mail  Processing,"  and a deposit  product that  automatically  sweeps
excess  funds from  commercial  demand  deposit  accounts  and  invests  them in
short-term  borrowings  ("Sweep  Repurchase  Agreements").  The commercial loans
offered by Southwest  include (i)  commercial  real estate  loans,  (ii) working
capital and other commercial  loans,  (iii)  construction  loans, and (iv) Small
Business  Administration  ("SBA")  guaranteed  loans.  Consumer lending services
include (i)  government-guaranteed  student loans,  (ii) residential real estate
loans and mortgage  banking  services,  and (iii)  personal  lines of credit and
other  installment  loans.  Southwest also offers  deposit and personal  banking
services,  including  (i)  commercial  deposit  services  such as Business  Mail
Processing,  commercial  checking and other  deposit  accounts,  and (ii) retail
deposit  services  such as  certificates  of  deposit,  money  market  accounts,
checking accounts,  NOW accounts,  savings accounts and automatic teller machine
("ATM") access. Trust services,  personal brokerage and credit cards are offered
through independent institutions.

Strategic Focus

         Southwest's  banking  philosophy is to provide a high level of customer
service, a wide range of financial services, and products



                                       1


responsive to customer  needs.  This  philosophy has led to the development of a
line of deposit and lending  products that responds to customer needs for speed,
efficiency  and  information.   These  include   Southwest's   Sweep  Repurchase
Agreements,  Business Mail  Processing,  and Southwest's  DirectBanker and other
internet banking products, which complement Southwest's more traditional banking
products.  Southwest also emphasizes marketing to highly educated,  professional
and  business   persons  in  its  markets.   Southwest   seeks  to  build  close
relationships with businesses, professionals and their principals and to service
their banking needs  throughout  their  business  development  and  professional
lives.

Organization

         Southwest's  business  operations are conducted  through three regional
divisions that offer commercial,  consumer, and real estate lending services and
retail and commercial  deposit products in their market areas, and a home office
that  provides   technology   driven  products,   residential   mortgages,   and
government-guaranteed  student loans.  Southwest's support and control functions
are  centralized,  although each region includes  support and control staff. The
organizational structure is designed to facilitate high customer service, prompt
response,  efficiency,  and  appropriate,  uniform  credit  standards  and other
controls.

         Regional  Divisions.  The three  regional  divisions are the Stillwater
division,  the Central  Oklahoma  division  (which  includes  Oklahoma  City and
Chickasha) and the Tulsa division. The Stillwater division serves the Stillwater
market as a full-service community bank emphasizing both commercial and consumer
lending. The Central Oklahoma division and the Tulsa division each have followed
a more focused  marketing  strategy,  targeting  managers and  professionals and
Oklahoma-based  businesses for lending, and offering more specialized  services.
All of the  regional  divisions  focus  on  consumer  and  commercial  financial
services to local  businesses  and their senior  employees and to other managers
and professionals living and working in Southwest's market areas.  Southwest has
a high-service  philosophy.  Loan officers often meet at the customer's  home or
place of business to close loans. Third-party courier services often are used to
collect commercial deposits.

         Home Office Business Operations.  Southwest manages and offers products
that are  technology  based,  or that  otherwise  are more  efficiently  offered
centrally,  through its home office.  These  include  products that are marketed
through the regional offices,  such as Southwest's internet banking products for
commercial and retail customers (DirectBanker),  commercial information and item
processing services (Business Mail Processing),  and residential mortgage loans,
and products  marketed and managed  directly by central  staff,  such as student
lending and cash dispensing machines.

         Southwest's technology products are marketed both to existing customers
and to help  develop  new  customer  relationships.  Use of  these  products  by
customers  enables  Southwest to serve its customers more  effectively,  use its
resources more efficiently, and increase fee income.

         Southwest  also  manages its mortgage  and student  lending  operations
through its home office.  Southwest markets its student lending program directly
to financial aid directors at Oklahoma  colleges and  universities.  These loans
are generally  sold as they enter  repayment.  Southwest also  originates  first
mortgage loans for sale to the Federal National Mortgage Association ("FNMA") or
private  investors.  Servicing on these loans may be released in connection with
the sale.

         Support  and Control  Functions.  Support  and  control  functions  are
centralized,  although each regional division has support and control personnel.
Southwest's  philosophy of customer  service  extends to its support and control
functions.  Senior managers  headquartered  in the Stillwater  offices travel to
Oklahoma City and Tulsa to help in marketing and management.  Southwest's  Chief
Executive  Officer,  Chief Lending Officer,  and others meet in committee in the
regional  offices to consider credit  proposals in order to ensure customers are
given prompt decisions while maintaining uniform credit standards.

Banking Offices

         Banking Offices. Southwest has six full-service banking offices, two of
which are located in each of  Stillwater  and Tulsa,  Oklahoma,  and one each in
Oklahoma City and Chickasha,  Oklahoma,  loan production offices on the campuses
of the  University  of  Oklahoma  Health  Sciences  Center  and  Oklahoma  State
University-Tulsa and a marketing presence in the Student Union at Oklahoma State
University-Stillwater and in two AAA Oklahoma offices, and the Internet, through
DirectBanker.  See  "Item 2.  Properties."  Before  1999,  laws of the  state of
Oklahoma  limited the number and location of de novo  branches that a bank could
establish.  Southwest has



                                       2


developed a business strategy that does not rely on an extensive branch network.
National  banks in Oklahoma now have broad ability to establish de novo branches
anywhere in the state.

Regulation, Supervision, and Governmental Policy

         Following is a brief summary of certain  statutes and regulations  that
significantly  affect  Southwest  and  Stillwater  National.  A number  of other
statutes and regulations  affect  Southwest and Stillwater  National but are not
summarized below.

         Bank Holding  Company  Regulation.  Southwest is  registered  as a bank
holding  company  under the  Holding  Company  Act and,  as such,  is subject to
supervision and regulation by the Federal  Reserve.  As a bank holding  company,
Southwest  is required to furnish to the Federal  Reserve  annual and  quarterly
reports of its operations and additional  information and reports.  Southwest is
also subject to regular examination by the Federal Reserve.

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

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

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

         The Holding  Company Act also limits the  investments and activities of
bank holding  companies.  In general,  a bank holding company is prohibited from
acquiring direct or indirect  ownership or control of more than 5% of the voting
shares  of a  company  that  is not a bank  or a bank  holding  company  or from
engaging  directly  or  indirectly  in  activities  other than those of banking,
managing or controlling banks, providing services for its subsidiaries, non-bank
activities that are closely related to banking,  and other  financially  related
activities. However, as a result of the Gramm-Leach-Bliley Act of 1999 (the "GLB
Act"),  bank holding companies that qualify as financial holding companies under
the Holding Company Act also may engage in a broad range of additional  non-bank
activities. Southwest qualified as a financial holding company in 2000.

         The  activities of Southwest are subject to these legal and  regulatory
limitations under the Holding Company Act and Federal Reserve  regulations.  The
GLB Act also created a new regulatory framework by expanding the extent to which
non-bank and financially related activities of bank holding companies, including
companies that become financial holding companies, are subject to regulation and
oversight by regulators other than the Federal Reserve.

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

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

         The Federal Reserve has the power to prohibit dividends by bank holding
companies if their actions constitute unsafe or unsound



                                       3

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

         Bank Regulation.  As a national bank, Stillwater National is subject to
the  primary  supervision  of the OCC under  the  National  Bank Act.  The prior
approval of the OCC is required for a national  bank to establish or relocate an
additional  branch  office  or  to  engage  in  any  merger,  consolidation,  or
significant purchase or sale of assets.

         Before 1999, laws of the state of Oklahoma  severely limited the number
and location of de novo branches that a bank could establish.  National banks in
Oklahoma now have broad  ability to establish de novo  branches  anywhere in the
state as a result of changes in state laws enacted in 1999, and  interpretations
of those laws by the OCC.

         The OCC regularly  examines the  operations and condition of Stillwater
National,  including but not limited to its capital adequacy,  reserves,  loans,
investments, and management practices. These examinations are for the protection
of  Stillwater  National's  depositors  and the  BIF.  In  addition,  Stillwater
National is required to furnish  quarterly  and annual  reports to the OCC.  The
OCC's enforcement  authority includes the power to remove officers and directors
and the  authority  to issue  cease-and-desist  orders  to  prevent  a bank from
engaging  in  unsafe or  unsound  practices  or  violating  laws or  regulations
governing its business.

         The OCC has  adopted  regulations  regarding  the  capital  adequacy of
national  banks,  which require  national  banks to maintain  specified  minimum
ratios of capital to total  assets and  capital  to  risk-weighted  assets.  See
"Regulatory Capital Requirements."

         No  national  bank may pay  dividends  from its  paid-in  capital.  All
dividends must be paid out of current or retained net profits,  after  deducting
reserves for losses and bad debts.  The National Bank Act further  restricts the
payment of  dividends  out of net profits by  prohibiting  a national  bank from
declaring a dividend on its shares of common stock until the surplus fund equals
the amount of capital stock or, if the surplus fund does not equal the amount of
capital  stock,  until  one-tenth of a bank's net profits for the preceding half
year in the case of quarterly or  semi-annual  dividends,  or the  preceding two
half-year  periods  in the case of  annual  dividends,  are  transferred  to the
surplus fund.

         The approval of the OCC is required  prior to the payment of a dividend
if the total of all  dividends  declared by a national bank in any calendar year
would  exceed  the  total of its net  profits  for that year  combined  with its
retained net profits for the two preceding years, less any required transfers to
surplus  or a fund for the  retirement  of any  preferred  stock.  In  addition,
Stillwater  National is prohibited by federal  statute from paying  dividends or
making any other capital  distribution  that would cause Stillwater  National to
fail to meet its  regulatory  capital  requirements.  Further,  the OCC also has
authority  to  prohibit  the  payment of  dividends  by a national  bank when it
determines that their payment would be an unsafe and unsound banking practice.

         Stillwater  National is a member of the Federal  Reserve System and its
deposits  are  insured  by the FDIC to the legal  maximum of  $100,000  for each
insured  depositor.  Some of the aspects of the lending and deposit  business of
Stillwater  National that are subject to  regulation by the Federal  Reserve and
the FDIC include reserve requirements and disclosure  requirements in connection
with personal and mortgage loans and deposit accounts.  In addition,  Stillwater
National is subject to  numerous  federal  and state laws and  regulations  that
include specific  restrictions and procedural  requirements  with respect to the
establishment  of  branches,  investments,   interest  rates  on  loans,  credit
practices,  the  disclosure  of  credit  terms,  and  discrimination  in  credit
transactions.


         Stillwater  National is subject to restrictions  imposed by federal law
on extensions of credit to, and certain other transactions  with,  Southwest and
other affiliates,  and on investments in their stock or other securities.  These
restrictions  prevent Southwest and Stillwater  National's other affiliates from
borrowing  from  Stillwater  National  unless the loans are secured by specified
collateral,  and require those transactions to have terms comparable to terms of
arms-length  transactions  with third  persons.  In addition,  secured loans and
other transactions and investments by Stillwater  National are generally limited
in amount as to Southwest  and as to any other  affiliate  to 10% of  Stillwater
National's  capital  and surplus and as to  Southwest  and all other  affiliates
together to an aggregate of 20% of  Stillwater  National's  capital and surplus.
Certain  exemptions to these  limitations  apply to extensions of credit by, and
other  transactions  between,  Stillwater  National to its  subsidiaries.  These
regulations and restrictions may limit Southwest's  ability to obtain funds from
Stillwater National for its cash needs, including funds for acquisitions and for
payment of dividends, interest, and operating expenses.

                                       4

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

         The  FDIC  has  established  a  risk-based  deposit  insurance  premium
assessment system for insured  depository  institutions.  Under the system,  the
assessment rate for an insured depository  institution depends on the assessment
risk  classification  assigned to the  institution  by the FDIC,  based upon the
institution's  capital  level  and  supervisory  evaluations.  Institutions  are
assigned  to  one  of  three  capital  groups  --  well-capitalized,  adequately
capitalized,  or  undercapitalized  -- based on the data reported to regulators.
Well-capitalized  institutions are institutions satisfying the following capital
ratio standards:  (i) total risk-based  capital ratio of 10.0% or greater;  (ii)
Tier 1 risk-based  capital  ratio of 6.0% or greater;  and (iii) Tier 1 leverage
ratio of 5.0% or greater.  Adequately capitalized  institutions are institutions
that do not  meet  the  standards  for  well-capitalized  institutions  but that
satisfy the following  capital ratio  standards:  (i) total  risk-based  capital
ratio  of 8.0% or  greater;  (ii)  Tier 1  risk-based  capital  ratio of 4.0% or
greater;  and (iii) Tier 1 leverage ratio of 4.0% or greater.  Institutions that
do not qualify as either  well-capitalized or adequately  capitalized are deemed
to be undercapitalized.  Within each capital group, institutions are assigned to
one  of  three  subgroups  on  the  basis  of  supervisory  evaluations  by  the
institution's  primary  supervisory  authority and such other information as the
FDIC determines to be relevant to the institution's  financial condition and the
risk it poses to the deposit insurance fund.  Subgroup A consists of financially
sound  institutions  with only a few minor  weaknesses.  Subgroup B consists  of
institutions with demonstrated  weaknesses that, if not corrected,  could result
in significant  deterioration  of the  institution and increased risk of loss to
the deposit  insurance  fund.  Subgroup C consists of  institutions  that pose a
substantial  probability of loss to the deposit  insurance fund unless effective
corrective action is taken.  Stillwater National has been informed that it is in
the lowest-cost/best risk assessment category for the first assessment period of
2001.

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

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


         The risk-based capital rules of the Federal Reserve and the OCC require
bank holding companies and national banks to maintain minimum regulatory capital
levels based upon a weighting of their assets and off-balance  sheet obligations
according to risk. The  risk-based  capital rules have two basic  components:  a
core  capital  (Tier  1)  requirement  and  a  supplementary  capital  (Tier  2)
requirement.  Core capital consists  primarily of common  stockholders'  equity,
certain perpetual preferred stock (noncumulative  perpetual preferred stock with
respect to banks), and minority interests in the equity accounts of consolidated
subsidiaries;  less all intangible assets, except for certain mortgage servicing
rights and purchased credit card relationships.  Supplementary  capital elements
include,  subject to certain limitations,  the allowance for losses on loans and
leases;  perpetual  preferred  stock  that does not  qualify  as Tier 1 capital;
long-term  preferred  stock with an original  maturity of at least 20 years from
issuance;  hybrid capital  instruments,  including  perpetual debt and mandatory
convertible securities;  subordinated debt,  intermediate-term  preferred stock,
and up to 45% of pre-tax  net  unrealized  gains on  available  for sale  equity
securities.
                                       5


         The  risk-based  capital  regulations  assign  balance sheet assets and
credit equivalent  amounts of off-balance sheet obligations to one of four broad
risk categories  based  principally on the degree of credit risk associated with
the obligor.  The assets and off-balance sheet items in the four risk categories
are weighted at 0%, 20%, 50% and 100%.  These  computations  result in the total
risk-weighted assets.

         The risk-based capital  regulations  require all banks and bank holding
companies to maintain a minimum  ratio of total  capital to total  risk-weighted
assets of 8%, with at least 4% as core capital.  For the purpose of  calculating
these ratios: (i) supplementary  capital is limited to no more than 100% of core
capital; and (ii) the aggregate amount of certain types of supplementary capital
is limited. In addition,  the risk-based capital regulations limit the allowance
for loan losses that may be included in capital to 1.25% of total  risk-weighted
assets.

         The  federal  bank  regulatory   agencies,   including  the  OCC,  have
established a joint policy regarding the evaluation of commercial banks' capital
adequacy for interest  rate risk.  Under the policy,  the OCC's  assessment of a
bank's capital adequacy includes an assessment of Stillwater National's exposure
to adverse  changes in interest  rates.  The OCC has  determined  to rely on its
examination process for such evaluations rather than on standardized measurement
systems or  formulas.  The OCC may  require  banks that are found to have a high
level of interest  rate risk  exposure  or weak  interest  rate risk  management
systems to take corrective  actions.  Management believes its interest rate risk
management  systems  and its  capital  relative  to its  interest  rate risk are
adequate.

         Federal banking regulations also require banks with significant trading
assets or liabilities  to maintain  supplemental  risk-based  capital based upon
their levels of market risk. Stillwater National did not have any trading assets
or  liabilities  during 2000 or 1999,  and was not  required  to  maintain  such
supplemental capital.

         The OCC has  established  regulations  that classify  national banks by
capital  levels  and  provide  for the OCC to take  various  "prompt  corrective
actions" to resolve  the  problems of any bank that fails to satisfy the capital
standards.  Under these regulations,  a well-capitalized bank is one that is not
subject to any regulatory  order or directive to meet any specific capital level
and  that  has a  total  risk-based  capital  ratio  of  10% or  more,  a Tier 1
risk-based  capital ratio of 6% or more,  and a leverage ratio of 5% or more. An
adequately capitalized bank is one that does not qualify as well-capitalized but
meets or exceeds the following capital requirements:  a total risk-based capital
ratio of 8%, a Tier 1 risk-based  capital  ratio of 4%, and a leverage  ratio of
either  (i) 4% or (ii) 3% if  Stillwater  National  has  the  highest  composite
examination  rating. A bank that does not meet these standards is categorized as
undercapitalized,      significantly     undercapitalized,     or     critically
undercapitalized,  depending on its capital  levels.  A national bank that falls
within any of the three  undercapitalized  categories  established by the prompt
corrective action regulation is subject to severe  regulatory  sanctions.  As of
December 31, 2000,  Stillwater  National was  well-capitalized as defined in the
OCC's regulations.

         For  information   regarding   Southwest's  and  Stillwater  National's
compliance  with  their  respective   regulatory   capital   requirements,   see
"Management's  Discussion  and Analysis -- Capital  Resources" on page 14 of the
Annual Report,  and, in the Notes to  Consolidated  Financial  Statements in the
Annual Report "Note  6-Long-Term  Debt" on pages 32 and 33, and "Note 9- Capital
Requirements" on pages 35 and 36.



                                       6

Supervision and Regulation of Mortgage Banking Operations

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

Competition

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

         Stillwater  National also competes in its lending activities with other
financial institutions such as savings institutions,  credit unions,  securities
firms, insurance companies,  small loan companies,  finance companies,  mortgage
companies and other  sources of funds.  Many of  Stillwater  National's  nonbank
competitors  are not  subject to the same  extensive  federal  regulations  that
govern bank holding companies and federally-insured  banks and state regulations
governing state  chartered  banks. As a result,  such nonbank  competitors  have
advantages over Stillwater  National in providing certain services.  A number of
the  financial  institutions  with which  Stillwater  National  competes in both
lending and deposit  activities are larger than Stillwater  National.  In recent
periods,  competition has increased in Stillwater  National's market area as new
entrants and existing  competitors have sought to more aggressively expand their
loan and deposit market share, and as a result of Stillwater  National's efforts
to  solicit  larger  loan  customers,  for whom  there is  greater  competition.
Southwest  anticipates that competition may intensify as a result of acquisition
of Oklahoma banks by out-of-state bank holding companies, increased branching by
financial institutions taking advantage of Oklahoma's expanded branching powers,
and the special advantages given to federal credit unions under current law.

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

         The Holding  Company  Act  permits  the  Federal  Reserve to approve an
application of an adequately  capitalized  and  adequately  managed bank holding
company to acquire control of, or acquire all or substantially all of the assets
of, a bank located in a state other than that holding  company's home state. The
Federal  Reserve may not approve the  acquisition of a bank that has not been in
existence for the minimum time period (not  exceeding  five years)  specified by
the statutory law of the host state.  The Holding Company Act also prohibits the
Federal  Reserve  from  approving  an  application  if the  applicant  (and  its
depository  institution  affiliates)  controls or would control more than 10% of
the insured  deposits in the United States or 30% or more of the deposits in the
target bank's home state or in any state in which

                                       7


the target bank maintains a branch.  The Holding Company Act does not affect the
authority of states to limit the  percentage  of total  insured  deposits in the
state which may be held or controlled  by a bank or bank holding  company to the
extent such limitation does not discriminate  against out-of-state banks or bank
holding companies.

         Federal  banking laws also  authorize the federal  banking  agencies to
approve   interstate  merger   transactions   without  regard  to  whether  such
transactions  are  prohibited by the law of any state,  unless the home state of
one of the banks expressly prohibits merger transactions  involving out-of-state
banks. The State of Oklahoma allows out-of-state financial institutions to merge
with Oklahoma  banks and to establish  branches in Oklahoma,  subject to certain
limitations.

         The GLB Act permits the creation of a new type of regulated entity, the
financial holding company,  that can offer a broad range of financial  products.
These new financial  holding companies may engage in banking as well as types of
securities,  insurance,  and other financial activities that had been prohibited
for bank holding  companies under prior law. The GLB Act also permits banks with
or without  holding  companies to establish and operate  financial  subsidiaries
that  may  engage  in most  financial  activities  in  which  financial  holding
companies  may engage.  Competition  may increase as bank holding  companies and
other large financial service companies take advantage of the new activities and
provide a wider  array of  products.  By  removing  historical  restrictions  on
affiliations  between banks and certain types of companies,  the GLB Act expands
the number of potential  acquirors of existing banks and bank holding companies,
and  makes it  possible  for bank  holding  companies  to  acquire  new types of
existing businesses.

Employees

         As of December 31, 2000, Southwest and Stillwater National employed 312
persons on a full-time equivalent basis, including executive officers,  loan and
other banking  officers,  branch personnel,  and others.  None of Southwest's or
Stillwater  National's  employees is  represented  by a union or covered under a
collective bargaining agreement. Management of Southwest and Stillwater National
consider their employee relations to be excellent.

Executive Officers

         The  following  table sets forth  information  regarding  the executive
officers of Southwest and Stillwater National who are not directors.



Name                                       Age                Position
- ----                                       ---                --------
                                                        
Kerby E. Crowell.........................  51                 Executive Vice President and Chief Financial
                                                              Officer of Southwest and the Bank

Jerry L. Lanier..........................  52                 Executive Vice President, Credit Administration of the Bank

Mark A. Poole............................  41                 President, Tulsa division of the Bank

Joseph P. Root...........................  36                 President, Central Oklahoma division of the Bank

Connie Saldivar..........................  28                 Senior Vice President, Retail Sales of the Bank

Kimberly G. Sinclair.....................  45                 Executive Vice President and Chief Administrative
                                                              Officer of the Bank

Charles H. Westerheide...................  52                 Executive Vice President and Treasurer of the Bank


         The principal  occupations  and business  experience of each  executive
officer of Southwest are shown below.



                                       8


         Kerby E. Crowell has served as Executive Vice President,  Treasurer and
Chief Financial Officer of Southwest and the Bank since 1986. Mr. Crowell joined
the Bank in 1969.  He is a Past  President and Board member of the Oklahoma City
Chapter  of the  Financial  Executives  Institute,  and a  member  of  the  Bank
Operations  Committee of the  Independent  Community  Bankers of America and the
Federal Reserve's Industry Advisory Group on Electronic Check Presentment. He is
past President and Director of the Oklahoma 4-H Foundation,  Inc.,  Director and
past  President  of  the  Payne  County  Affiliate  of  the  American   Diabetes
Association,  past President of the Stillwater  Breakfast Kiwanis Club, the Bank
Administration  Institute's  Northern  Oklahoma  Chapter,  and the North Central
Chapter  of  Certified  Public  Accountants,  and  past  Vice  Chairman  of  the
Independent Community Bankers of America's Bank Services Committee.  Mr. Crowell
is also a graduate of the Leadership Stillwater Class XI.

         Jerry  L.  Lanier  was  appointed  Executive  Vice  President,   Credit
Administration  in  December  1999,  supervising  this area  Company-wide.  From
January 1998 to December  1999,  Mr. Lanier  served as Senior Vice  President in
Credit Administration.  From 1992 until joining the Bank in 1998, Mr. Lanier was
a consultant specializing in loan review. During this same period he also served
as court-appointed  receiver for a number of Oklahoma-based insurance companies.
From  1982-1992,  Mr. Lanier  served as President of American  National Bank and
Trust Co. of Shawnee, Oklahoma including service as Chief Executive Officer from
1987-92. From 1970-1981, he was a National Bank Examiner for the OCC in Oklahoma
City,  Oklahoma and Dallas,  Texas,  and, while an examiner,  served as Regional
Director  of  Special  Surveillance  from  1979  to  1981,  and  conducted  bank
examinations  in Europe.  Mr. Lanier has served as United Way Drive Chairman and
President;   Chairman  of  the  Shawnee   Advisory  Board  of  Oklahoma  Baptist
University;  Director of the Shawnee Chamber of Commerce;  Director and Chairman
of the Youth and  Family  Resource  Center;  and  President  and  Trustee of the
Shawnee Educational Foundation.

         Mark A. Poole was appointed President of the Tulsa division of the Bank
in December  1998.  Prior to joining the Bank in 1998, Mr. Poole was Senior Vice
President/Sales  Manager of Bank One,  Oklahoma in Tulsa from 1996 to 1998;  and
served as  commercial  lending  officer for BankIV in Oklahoma City from 1994 to
1996; Bank of Oklahoma in Oklahoma City from 1991 to 1994; and Security  Pacific
Bank of Arizona from 1987 to 1991. In 1981, Mr. Poole was drafted by the Toronto
Blue Jays and played  professional  baseball in the A, AA and AAA leagues  until
1986.  Mr.  Poole is a board  member of the Tulsa Area  United  Way  Allocations
Committee and Downtown Tulsa Unlimited.  He is a former board member of Citizens
Caring for Children,  was chairman of the 1996 OBA Basic Banking  School,  and a
member of the Advisory Board for the 1994 OBA Commercial Lending School.

         Joseph P. Root was appointed President of the Central Oklahoma division
of the Bank in November 1997. Previously,  Mr. Root was Senior Vice President in
the  Central  Oklahoma  division.  Prior to joining  the Bank in 1992,  Mr. Root
served as Credit  Analyst from November  1987 to April 1989 and Private  Banking
Officer from May 1989 to July 1992 with Comerica Bank in Dallas,  Texas. He is a
member of the  Oklahoma  City  Chamber  of  Commerce  and the State  Chamber  of
Commerce of Oklahoma,  and of Robert  Morris  Associates.  In addition,  he is a
member of the Oklahoma City Men's Dinner Club.

         Connie Saldivar was appointed Senior Vice President, Retail Sales, upon
joining the Bank in  September  2000.  Prior to joining the Bank,  Ms.  Saldivar
served as National  Performance and Quality  Manager,  Vice  President,  for the
Midwest Region of Bank of America  (previously  NationsBank) during 2000, and as
Oklahoma  West Sales  Manager,  Vice  President,  of Bank of  America  (formerly
NationsBank)  from 1997 to 2000. Ms. Saldivar  served in various  capacities for
previously Boatmen's Bank, which was acquired by Nations Bank.

         Kimberly G. Sinclair was appointed Chief Administrative Officer in 1995
and has been Executive Vice President of the Bank since 1991. Prior to 1991, she
had been Senior Vice  President and Chief  Operations  Officer of the Bank since
1985.  Ms.  Sinclair  joined the Bank in 1975. She is a member of the Stillwater
Junior  Service  League,  Treasurer  of the Board of Trustees of the  Stillwater
Public Education  Foundation,  and a graduate of the Leadership Stillwater Class
IX. She has been an  Ambassador  with the  Stillwater  Chamber of  Commerce  and
active with the Pioneer Booster Club and Stillwater PTA.

         Charles H.  Westerheide  was  appointed  Executive  Vice  President and
Treasurer of the Bank in 2000.  Prior to that he served as Senior Vice President
and  Treasury  Manager.  He joined the Bank in 1997  coming from Bank of America
(previously  NationsBank),  Wichita, Kansas (previously BankIV), where he served
as Treasury/Funding  Manager. Prior to joining BankIV, Mr. Westerheide served as
Executive Vice President and Chief Financial  Officer of Security Bank and Trust
Co.,  Ponca  City,  Oklahoma.  Mr.  Westerheide  has held a number of  community
leadership  positions  including Chairman of the Ponca City Chamber of Commerce,
President of the Ponca City  Foundation  for Progress,  Inc., and a director and
officer of  numerous  community  foundations  and clubs.  Mr.  Westerheide  is a
graduate of



                                       9


Leadership Oklahoma, Class II.

Tabular Financial Information

         The  following  tabular  financial   information   should  be  read  in
conjunction with the Management's Discussion and Analysis of Financial Condition
and Results of Operations and the  Consolidated  Financial  Statements and Notes
thereto  included in the Annual Report and  incorporated by reference in Items 7
and 8 of this Form 10-K.


                              Rate/Volume Analysis

         The following  table analyzes  changes in interest  income and interest
expense  of  Southwest  for  the  periods   indicated.   For  each  category  of
interest-earning asset and interest-bearing  liability,  information is provided
on changes  attributable to: (i) changes in volume (changes in volume multiplied
by the  prior  period's  rate);  and  (ii)  changes  in rates  (changes  in rate
multiplied by the prior period's  volume).  Changes in  rate-volume  (changes in
rate multiplied by the changes in volume) are allocated  between changes in rate
and changes in volume in proportion to the relative contribution of each.



                                                 Year ended                             Year ended
                                             December 31, 2000                      December 31, 1999
                                                Compared to                            Compared to
                                             December 31, 1999                      December 31, 1998
                                     -----------------------------------    -----------------------------------
                                                  Increase (decrease) attributable to change in:
                                                  Yield/        Net                      Yield/        Net
                                       Volume      Rate       Change          Volume      Rate       Change
                                     -----------------------------------    -----------------------------------
                                                              (dollars in thousands)
                                                                                        
Interest earned on:
     Loans receivable (1)                $8,195      $5,912     $14,107         $2,726     $(2,373)       $353
     Investment securities                1,775         711       2,486            251        (220)         31
     Federal funds sold                      75          11          86            (35)         (6)        (41)
                                     -----------------------------------    -----------------------------------
         Total interest income           10,045       6,634      16,679          2,942      (2,599)        343

Interest paid on:
     NOW accounts                            44         343         387             40        (171)       (131)
     Money market accounts                   31       1,048       1,079            246           9         255
     Savings accounts                        20          --          20             12         (14)         (2)
     Time deposits                        4,884       4,809       9,693           (957)     (2,145)     (3,102)
     Short-term borrowings                2,036       1,445       3,481          3,272         (71)      3,201
     Long-term debt                          --          --          --             --          --          --
                                     -----------------------------------    -----------------------------------
         Total interest expense           7,015       7,645      14,660          2,613      (2,392)        221
                                     -----------------------------------    -----------------------------------

         Net interest income             $3,030     $(1,011)     $2,019           $329       $(207)       $122
                                     ===================================    ===================================
<FN>
(1)      Average balances include  nonaccrual  loans.  Fees included in interest
         income on loans  receivable  are not considered  material.  Interest on
         tax-exempt loans and securities is not shown on a tax-equivalent  basis
         because it is not considered material.
</FN>



                                       10


                        Investment Portfolio Composition




                                                                      At December 31,
                                                         -----------------------------------------
                                                            2000           1999          1998
                                                         ------------   ------------  ------------
                                                                (Dollars in thousands)
                                                                                
U.S. Government and agency obligations                      $106,210       $105,763      $121,656
Obligations of states and political subdivisions              41,026         31,170        15,372
Mortgage-backed securities                                    70,567         64,202        31,020
Other securities                                              11,989         10,547         6,623
                                                         ------------   ------------  ------------
         Total investment securities                        $229,792       $211,682      $174,671
                                                         ============   ============  ============


Available for sale (fair value)                             $156,947       $131,379       $92,960
Held to maturity (amortized cost)                             64,406         71,814        77,575
Federal Reserve Bank and Federal Home
     Loan Bank Stock                                           8,439          8,489         4,136
                                                         ------------   ------------  ------------
         Total investment securities                        $229,792       $211,682      $174,671
                                                         ============   ============  ============




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


                                       11


                          Investment Portfolio Maturity

         The following  table shows the  maturities,  carrying value  (amortized
cost for  investment  securities  being held to maturity or estimated fair value
for investment securities available for sale),  estimated fair market values and
average yields for Southwest's investment portfolio at December 31, 2000. Yields
are not  presented on a  tax-equivalent  basis.  Maturities  of  mortgage-backed
securities are based on expected  maturities.  Expected  maturities  will differ
from contractual maturities due to scheduled repayments and because borrowers on
the underlying  mortgages may have the right to call or prepay  obligations with
or without prepayment penalties.  The securities of no single issuer (other than
the United States or its agencies), or in the case of securities issued by state
and  political  subdivisions,  no  source  or group  of  sources  of  repayment,
accounted for more than 10% of shareholders' equity of Southwest at December 31,
2000.




                                              Two through         Five through           More than
                       One Year or Less        Five Years           Ten Years            Ten Years       Total Investment Securities
                      ------------------   ------------------   ------------------   ------------------  ---------------------------
                      Amortized  Average   Amortized  Average   Amortized  Average   Amortized  Average   Amortized  Market  Average
                        Cost      Yield      Cost      Yield       Cost     Yield       Cost     Yield       Cost     Value   Yield
                      --------- --------   ---------  -------   ---------  -------   ---------  -------   ---------  ------  -------
                                                               (Dollars in thousands)
                                                                                                    
Held to Maturity:
U.S. government and
  agency obligations  $  9,505    6.30%    $ 18,693    6.23%    $    --       --%     $    --      --%    $ 28,198  $ 28,433   6.25%
Obligations of states
  and political
  subdivisions           3,977    5.93       32,231    6.44          --       --           --      --       36,208    36,182   6.35
                      --------             --------             -------               -------             --------  --------
    Total               13,482    6.19       50,924    6.36          --       --           --      --       64,406    64,615   6.33
                      --------             --------             -------               -------             --------  --------


Available for Sale:
U.S. government and
  agency obligations    15,409    4.24       58,026    6.56       3,969     6.78           --      --       77,404    78,012   6.11
Obligations of states
  and political
  subdivisions             220    5.99        2,867    6.47       1,700     6.74           --      --        4,787     4,818   6.54
Mortgage-backed
  securities             3,154    5.83       48,168    6.70       8,535     7.21       10,676    7.92       70,533    70,567   6.91
Other securities            --      --       10,030    6.40          --       --        2,000    8.60       12,030    11,989   6.77
                      --------             --------             -------               -------             --------  --------
    Total               18,783    6.02      119,091    6.60      14,204     7.03       12,676    8.03      164,754   165,386   6.51
                      --------             --------             -------               -------             --------  --------

  Total investment
    securities        $ 32,265             $170,015             $14,204               $12,676             $229,160  $230,001
                      ========             ========             =======               =======             ========  ========



                                       12


                                 Loan Portfolio

         The  following  table  presents the  composition  of  Southwest's  loan
portfolio, net of unearned interest:



                                                                       At December 31,
                                -----------------------------------------------------------------------------------------------
                                      2000                1999               1998                1997                1996
                                ---------------     ---------------    ----------------    ----------------    ----------------
                                Amount      %       Amount      %       Amount      %       Amount      %       Amount      %
                                -------   -----     -------   -----    --------   -----    --------   -----    --------   -----
                                                                    (Dollars in thousands)
                                                                                            
Real estate mortgage -
  One to four family
    residential                 107,360   11.76%    102,973   12.07%   $ 83,657   10.55%   $ 79,843   11.10%   $ 61,175    9.49%
  Commercial                    276,525   30.30     263,216   30.86     275,729   34.75     223,672   31.10     196,163   30.43
Real estate construction        103,951   11.39      85,511   10.03      76,544    9.65      72,454   10.08      54,369    8.43
Commercial                      311,953   34.19     296,415   34.77     252,341   31.81     241,007   33.52     218,515   33.90
Installment and consumer -
  Government-guaranteed
    student loans                77,846    8.53      69,873    8.19      65,242    8.22      64,390    8.95      61,959    9.61
  Credit cards                       --      --          --      --          --      --          73    0.01      20,839    4.11
  Other                          34,915    3.83      34,820    4.08      39,806    5.02      37,674    5.24      31,626    4.91
                               --------   -----    --------   -----    --------   -----    --------   -----    --------   -----
                                912,550   100.0%    852,808  100.00%    793,319     100%    719,113  100.00%    644,646  100.00%
                                          ======              =====               ======              =====               =====

Less:  Allowance
       for loan loss            (12,125)            (11,190)            (10,401)             (8,282)             (7,139)
                               --------            --------            --------            --------            --------
  Total                         900,425             841,618             782,982             710,831             637,507
                               ========            ========            ========            ========            ========



         Potential   Nonperforming  Loans.  Those  performing  loans  considered
potential  nonperforming  loans,  loans which are not  included in the past due,
nonaccrual or restructured  categories,  but for which known  information  about
possible credit  problems cause  management to be uncertain as to the ability of
the borrowers to comply with the present loan repayment  terms over the next six
months,  amounted to approximately  $53.1 million at December 31, 2000, compared
to $17.8 million at December 31, 1999.  Loans may be monitored by management and
reported as potential  nonperforming loans for an extended period of time during
which  management  continues  to be  uncertain  as to  the  ability  of  certain
borrowers  to comply  with the present  loan  repayment  terms.  These loans are
subject to continuing  management  attention and are considered by management in
determining the level of the allowance for loan losses.


                                       13


                   Allocation of the Allowance for Loan Losses

         Southwest's  methodology  for  assessing  the  appropriateness  of  the
allowance includes determination of a formula allowance, specific allowances and
an unallocated  allowance.  The formula allowance is calculated by applying loss
factors to  corresponding  categories  of  outstanding  loans and  leases.  Loss
factors  are based on  Southwest's  historical  loss  experience  in the various
portfolio categories over the prior six quarters or four quarters,  whichever is
greater.  The use of these loss  factors is intended  to reduce the  differences
between estimated losses inherent in the portfolio and observed losses. Specific
allowances are established in cases where management has identified  significant
conditions  or  circumstances  related  to a  credit  that  management  believes
indicate the probability that a loss may be incurred in an amount different from
the amount determined by application of the formula allowance. The allowance for
loan losses related to loans that are identified for evaluation of impairment is
based on discounted cash flows using the loan's initial effective  interest rate
or the fair value of the  collateral  for certain  collateral  dependent  loans.
Allowances  are  established  for credits that do not have  specific  allowances
according to the  application  of credit risk factors.  These factors are set by
management to reflect its  assessment of the relative  level of risk inherent in
each grade. The unallocated  allowance is based upon management's  evaluation of
various  conditions that are not directly  measured in the  determination of the
formula and specific allowances.  Management reviews these conditions quarterly.
During 2000,  there were no changes in estimation  methods or  assumptions  that
affected the allowance methodology.

         Management  believes  that the allowance for credit losses is adequate.
However, the determination of the allowance requires significant  judgment,  and
estimates  of  probable   losses   inherent  in  the  loan  portfolio  can  vary
significantly  from  the  amounts  actually  observed.   While  management  uses
available  information to recognize  probable  losses,  future  additions to the
allowance may be necessary  based on changes in the credits  comprising the loan
and lease portfolio and changes in the financial condition of borrowers, such as
may result from changes in economic conditions. In addition,  various regulatory
agencies,  as an integral part of their  examination  process,  and  independent
consultants engaged by Stillwater National,  periodically review the Bank's loan
portfolio and allowance for credit losses. Such review may result in recognition
of additions to the allowance based on their judgments of information  available
to them at the time of their examination.


                                       14


         The following table presents a five-year  history for the allocation of
the allowance for credit  losses,  reflecting use of the  methodology  presented
above,  along with the  percentage  of total  loans and leases in each  category
(dollars in thousands).  The unallocated  allowance  increased from December 31,
1999,  to December 31, 2000,  due  primarily to growth in loans.  When  measured
against  the  total  allowance,  unallocated  reserves  decreased  to  24.96% at
December 31, 2000, from 26.74% a year earlier.




                                                                         At December 31,
                               -----------------------------------------------------------------------------------------------------
                                        2000                    1999                      1998                      1997
                               -----------------------   -----------------------   -----------------------   -----------------------
                                         Percent of                Percent of                Percent of                Percent of
                                         Loans in Each             Loans in Each             Loans in Each             Loans in Each
                                         Category to               Category to               Category to               Category to
                                Amount   Total Loans      Amount   Total Loans      Amount   Total Loans      Amount   Total Loans
                               --------  -------------   -------- --------------   --------  -------------   -------- -------------
                                                                       (Dollars  in thousands)
                                                                                                  
Real estate mortgage -
  One to four family
    residential                $    546     11.76%      $    602      12.07%       $    321      10.55%      $    488      11.10%
  Commercial                        916     30.30          1,128      30.86             851      34.75          1,073      31.10
Real estate construction          3,003     11.39          1,893      10.03             912       9.65            732      10.08
Commercial                        4,286     34.19          4,028      34.77           5,353      31.81          4,477      33.52
Installment and consumer -
  Government-guaranteed
    student loans                    --      8.53             56       8.19              --       8.22             --       8.95
  Credit cards                       --        --             --         --              --         --              1       0.01
  Other                             347      3.83            491       4.08             510       5.02            573       5.24
Unallocated                       3,027                    2,992                      2,454                       938
                               --------   -------       --------    -------        --------    -------       --------    -------
  Total                        $ 12,125    100.00%      $ 11,190     100.00%       $ 10,401     100.00%      $  8,282     100.00%
                               ========   =======       ========    =======        ========    =======       ========    =======


                                  At December 31,
                               -----------------------
                                       1996
                               -----------------------
                                         Percent of
                                         Loans in Each
                                         Category to
                                Amount   Total Loans
                               --------  --------------
                                 (Dollars in thousands)
                                          
Real estate mortgage -
  One to four family
    residential                    $    294       9.49%
  Commercial                            584      30.43
Real estate construction                457       8.43
Commercial                            4,597      33.90
Installment and consumer -
  Government-guaranteed
    student loans                        --       9.61
  Credit cards                          670       3.23
  Other                                 263       4.91
Unallocated                             274
                                   --------    -------
  Total                            $  7,139     100.00%
                                   ========    =======



                                       15


                   Certificates of Deposit of $100,000 or More

         The following table indicates the amount of Southwest's certificates of
deposit of $100,000 or more by time remaining  until maturity as of December 31,
2000:



                 Maturity Period                            Amount
- ---------------------------------------------------       ------------
              (Dollars in thousands)
                                                         
Three months or less (1)                                     $ 95,304
Over three through six months (1)                             112,228
Over six through 12 months (1)                                 68,723
Over 12 months                                                 28,559
                                                          ------------
         Total                                               $304,814
                                                          ============
<FN>
(1) The amount of certificates of deposit that mature within 12 months is $276.3
million.  The Company  does not have any  liquidity  concerns as a result of the
volume of these maturities.
</FN>



Other Material

         The Letter to  Shareholder  from the CEO on pages 2 and 3 of the Annual
Report,  the  information  set forth on pages 5 through 17 of the Annual Report,
Note  1-"Summary of Significant  Accounting and Reporting  Policies" on pages 24
through 26 of the Annual Report,  Note 3-"Loans  Receivable" on pages 28 through
30 of the Annual Report, and Note 5-"Other Borrowed Funds" on pages 31 and 32 of
the Annual Report are incorporated herein by reference.


ITEM 2.  PROPERTIES

         Page 46 of the Annual Report  (listing  executive and other offices) is
hereby  incorporated  by  reference.  The  Corporate  Headquarters,  Drive-in  &
Mortgage  Lending,  Chickasha  Branch,  and Tulsa Utica Branch are owned.  Other
facilities are held under lease or similar arrangement.

ITEM 3.  LEGAL PROCEEDINGS

         Note  15--"Commitments  and  Contingencies"  on page  40 of the  Annual
Report is hereby incorporated by reference.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         No matter was submitted to a vote of security holders during the fourth
quarter of 2000, through solicitation of proxies or otherwise.


                                     PART II

ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED SHAREHOLDER MATTERS

         As of March 20, 2001, there were  approximately  2000 holders of record
of Southwest's  Common Stock. The section titled "Stock  Information" on page 45
of the Annual Report is hereby incorporated by reference.

         For  information   regarding  regulatory   restrictions  on  Stillwater
National's  and,  therefore,  Southwest's  payment of  dividends,  see Note 8 --
"Shareholders'  Equity" on pages 34 and 35 of the Annual Report, which is hereby
incorporated by reference.

ITEM 6.  SELECTED FINANCIAL DATA



                                       16


         The table titled "Selected  Consolidated Financial Data" on pages 4 and
5 of the Annual Report is hereby incorporated by reference.

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

         Pages 7 through 17 of the Annual  Report  are  hereby  incorporated  by
reference.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

         The section titled  "Asset/Liability  Management and  Quantitative  and
Qualitative  Disclosures  about  Market  Risk" on pages 15 and 16 of the  Annual
Report is hereby incorporated by reference.

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

         Pages 19  through 42 of the Annual  Report are hereby  incorporated  by
reference. The Independent Auditors' Report as of December 31, 1999 and for each
of the two years in the period ended December 31, 1999 is included as Exhibit 99
to the Report.

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

         The  section  titled,  "Change  in  Auditors"  on page 17 of the Annual
Report is incorporated herein by reference.

                                    PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

         Information regarding directors and nominees for directors of Southwest
and  compliance  with Section  16(a) of the  Securities  Exchange Act of 1934 is
included under the captions titled "Proposal  I--Election of Directors" on pages
2 through 7 of the Proxy  Statement,  and Section  16(a)  "Beneficial  Ownership
Reporting  Compliance"  on  page  15 of  the  Proxy  Statement,  and  is  hereby
incorporated by reference.

         Information  concerning the executive officers of Southwest is included
under the caption titled "Item 1. Business -- Executive Officers" of this report
and is hereby incorporated by reference.

ITEM 11. EXECUTIVE COMPENSATION

         Information  regarding the  compensation  of Southwest's  directors and
executive  officers is included under the captions  "Director  Compensation," on
page 7 and "Executive  Compensation and Other Benefits," and "Stock  Performance
Comparisons"  on pages 10  through  14 of the  Proxy  Statement,  and is  hereby
incorporated by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         Information  regarding beneficial ownership of Southwest's common stock
by certain  beneficial owners and directors and executive  officers of Southwest
is included  under the caption  "Common  Stock Owned by Directors  and Executive
Officers"  on  page 8 of the  Proxy  Statement  and is  hereby  incorporated  by
reference.


                                       17


ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         Information  regarding certain  relationships and related  transactions
with management is included under the caption "Certain  Transactions" on page 14
of the Proxy Statement and is hereby incorporated by reference.


                                     PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

         (a) Documents Filed as Part of this Report

         (1) Financial  Statements.  The  consolidated  financial  statements of
         Southwest  included in the Annual Report to  Shareholders  for the year
         ended December 31, 2000, are incorporated herein by reference in Item 8
         of this  Report.  The  remaining  information  appearing  in the Annual
         Report  to  Shareholders  is not  deemed  to be  filed  as part of this
         Report, except as expressly provided herein.

         The following financial statements are filed as a part of this report:

                  Independent Auditors' Report

                  Consolidated Statements of Financial Condition at December 31,
                  2000 and 1999

                  Consolidated  Statements  of  Operations  for the Years  Ended
                  December 31, 2000, 1999 and 1998

                  Consolidated  Statements of Comprehensive Income for the Years
                  Ended December 31, 2000, 1999 and 1998

                  Consolidated  Statements of Shareholders' Equity for the Years
                  Ended December 31, 2000, 1999 and 1998

                  Consolidated  Statements  of Cash  Flows for the  Years  Ended
                  December 31, 2000, 1999 and 1998

                  Notes to Consolidated Financial Statements for the Years Ended
                  December 31, 2000, 1999 and 1998

                  Independent  Auditors'  Report as of December 31, 1999 and for
                  each of the two years in the period ended December 31, 1999

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

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

         No.      Exhibit
         ---      -------

         3.1      Amended and Restated Certificate of Incorporation of Southwest
                  Bancorp,  Inc.  (incorporated  by  reference to Exhibit 3.1 to
                  Quarterly  Report on Form 10-Q for the quarter  ended June 30,
                  1996)
         3.2      Bylaws of Southwest Bancorp,  Inc.  (incorporated by reference
                  to Exhibit 3.2 to Registration Statement on Form S-1 (File No.
                  33-71168))
         4.1      Rights  Agreement,   dated  as  of  April  22,  1999,  between
                  Southwest  Bancorp,  Inc. and Harris Trust & Savings  Bank, as
                  rights agent and Form of Certificate of  Designations  setting
                  forth terms of Class B, Series 1 Preferred  Stock of Southwest
                  Bancorp,   Inc.   referred   to  in   the   rights   agreement
                  (incorporated  by  reference  to  Exhibits  1 and 2 to Current
                  Report on Form 8-K dated April 22, 1999)
*        10.1     Southwest   Bancorp,   Inc.   Employee   Stock  Purchase  Plan
                  (incorporated  by reference  from Exhibit 4.1 to  Registration
                  Statement on Form S-8 (File No. 33-97850))
*        10.2     Severance  Compensation  Plan  (incorporated  by  reference as
                  Exhibit 10.2 to  Registration  Statement on Form S-1 (File No.
                  33-71168))
*        10.3     Southwest  Bancorp,  Inc. 1994 Stock Option Plan (incorporated
                  by reference from Exhibit 10.3 to Annual Report on

                                       18


                  Form 10-K for the fiscal year ended December 31, 1993)
*        10.4     Southwest  Bancorp,  Inc. 1999 Stock Option Plan (incorporated
                  by reference from Exhibit 4 to Registration  Statement on Form
                  S-8 (File No. 333-92143))
         13       Annual Report to Shareholders  for the Year Ended December 31,
                  2000
         21       Subsidiaries of the Registrant
         23.1     Independent Auditors' Consent
         23.2     Independent Auditors' Consent
         24       Power of Attorney
         99       Independent  Auditors'  Report as of December 31, 1999 and for
                  each of the two years in the period ended December 31, 1999

- --------------
*        Management contract or compensatory plan or arrangement  required to be
         filed pursuant to Item 14(c) of Form 10-K.

         (b)  Reports on Form 8-K.

         Southwest filed an 8-K dated December 14, 2000, reporting, in Item 5 of
such form, the restructuring of a large problem credit.

         (c) Exhibits.  See (a)(3) above for all exhibits filed herewith and the
Exhibit Index.


                                       19


                                   SIGNATURES

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


                                           SOUTHWEST BANCORP, INC.

March 29, 2001                             By: /s/ Rick Green
                                              ------------------------------
                                                Rick Green
                                                Chief Executive Officer

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


/s/ Rick Green                                              March 29, 2001
- ----------------------------------------
Rick Green
Director and Chief Executive Officer
(Principal Executive Officer)


/s/ Kerby E. Crowell                                        March 29, 2001
- ----------------------------------------
Kerby E. Crowell
Executive Vice President
  and Chief Financial Officer
  (Principal Financial and
  Accounting Officer)


         A majority of the  directors of Southwest  executed a power of attorney
appointing  Rick Green as their  attorney-in-fact,  empowering  him to sign this
report  on  their  behalf.  This  power of  attorney  has  been  filed  with the
Securities and Exchange  Commission  under Part IV, Exhibit 24 of this Form 10-K
for the year ended December 31, 2000.  This report has been signed below by such
attorney-in-fact as of March 29, 2001.

By:  /s/ Rick Green
   ---------------------------------------
     Rick Green
     Attorney-in-Fact for Majority of the
     Directors of Southwest


                                       20