EXHIBIT 10T

                            OFFICE LEASE AGREEMENT

                                   between

                          HULEN SOUTH TOWER LIMITED,
                                 as Landlord

                                     and

                              SUMMIT BANK, N.A.,
                                  as Tenant

                           Dated: November 21, 2002

3880 Hulen Street
Fort Worth, Texas


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                           BASIC LEASE INFORMATION

Lease Date:             November 21, 2002

Tenant:                 Summit Bank, N.A.

Address of Tenant:      Summit Bank, N.A.
                        P.O. Box 2665
                        Fort Worth, Texas 76113

Tenant Contact:         Philip E. Norwood Telephone: (817) 336-6817

Landlord:               Hulen South Tower Limited

Address of Landlord:    Hulen South Tower Limited
                        c/o Isenberg Management Associates
                        1005 W. Jefferson Boulevard, Suite 305
                        Dallas, Texas 75208

Landlord Contact:       Jason Morahan     Telephone: (214) 943-7697

Premises:               Suite Nos. 100, 200 and 300 (being all of the first,
                        second and third floors) containing approximately 34,339
                        rentable square feet in the office building known as
                        3880 Hulen Street (the "Building"), located in the City
                        of Fort Worth, Tarrant County, Texas, on the land (the
                        "Land") described on Exhibit B. The Premises are
                        outlined on the plan attached to the Lease as Exhibit A.
                        The rentable square feet leased hereunder is subject to
                        adjustment as provided in Exhibit I attached hereto.

Secured Areas:          Those areas denoted by Tenant on Exhibit A as being
                        Secured Areas.

Commencement Date:      May 1, 2003

Term:                   Commencing on the Commencement Date and ending at 5:00
                        p.m., on the last day of the eighty-fourth (84th) full
                        calendar month following the Commencement Date, subject
                        to adjustment and earlier termination as provided in the
                        Lease.

Basic Rental:           Payable monthly based on an annual Basic Rental of
                        $13.50 per rentable square foot.


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Base Year:              2003

Tenant's Proportionate
Share:                  A percentage, the numerator of which is the rentable
                        square feet in the Premises, and the denominator of
                        which is the rentable square feet in the Building (i.e.,
                        68,862 rentable square feet).

Initial Estimate of
Electrical Costs:       $2.25 per rentable square foot

Security Deposit:       None.

Rent:                   Basic Rental and all other sums that Tenant may owe to
                        Landlord under the Lease.

Permitted Use:          Retail bank and general office

Tenant's Broker:        Kelly, Geren & Searcy (Byron Searcy)

Landlord's Broker:      Richard D. Minker Co. (Richard D. Minker)

The foregoing Basic Lease Information is incorporated into and made a part of
the Lease identified above. If any conflict exists between any Basic Lease
Information and the Lease, then the Lease shall control.

                                    LANDLORD

                                    HULEN SOUTH TOWER LIMITED, a Texas limited
                                    partnership

                                    By:   Isenberg Management Associates, Inc.,
                                          a Texas corporation, its sole general
                                          partner

                                    By:   /s/ Ralph Isenberg
                                          --------------------------------------
                                          Ralph Isenberg
                                          President


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                                    TENANT

                                    SUMMIT BANK, N.A., a national banking
                                    Association

                                    By: /s/ Bob G. Scott
                                       ---------------------------------------
                                    Name: Bob G. Scott
                                         -------------------------------------
                                    Title:  Executive Vice President
                                          ------------------------------------


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                              TABLE OF CONTENTS

                                                                            Page
                                                                            ----

Definitions and Basic Provisions.............................................1

Lease Grant .................................................................1

Delivery of Premises.........................................................1

Rent.........................................................................1

Delinquent Payment; Handling Charges.........................................2

Landlord's Obligations.......................................................2

Improvements; Alterations; Repairs; Maintenance..............................4

Use; Smoke-Free Environment..................................................5

Assignment and Subletting....................................................6

Insurance; Waivers; Subrogation; Indemnity...................................7

Subordination, Attornment; Notice to Landlord's Mortgagee....................8

Rules and Regulations........................................................9

Condemnation.................................................................9

Fire or Other Casualty......................................................10

Taxes.......................................................................11

Events of Default...........................................................11

Remedies....................................................................11

Payment by Tenant; Non-Waiver...............................................13

Surrender of Premises.......................................................13

Holding Over................................................................13


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Certain Rights Reserved by Landlord.........................................13

Miscellaneous...............................................................14

Special Provisions..........................................................17


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                            OFFICE LEASE AGREEMENT

      This OFFICE LEASE AGREEMENT (the "Lease") is entered into as of November
21, 2002, between Hulen South Tower Limited, a Texas limited partnership
("Landlord"), and Summit Bank, N.A., a national banking association ("Tenant").

      1. Definitions and Basic Provisions. The definitions and basic provisions
set forth in the Basic Lease Information (the "Basic Lease Information")
executed by Landlord and Tenant contemporaneously herewith are incorporated
herein by reference for all purposes.

      2. Lease Grant. Subject to the terms of this Lease, Landlord leases to
Tenant, and Tenant leases from Landlord, the Premises.

      3. Delivery of Premises. Subject to Landlord's Work, as set forth in
Section 25a. and Exhibit E-1, being done in a good and workmanlike manner, the
Premises is being leased "AS IS," and "WITH ALL DEFECTS." The occupancy of the
Premises by Tenant shall constitute the acknowledgment and agreement of Tenant
that Tenant has been given the opportunity to inspect the Premises and to have
qualified experts inspect the Premises prior to the execution of this Lease,
that Tenant is familiar with the physical condition of the Premises, that Tenant
has received the same in good order and condition, and that the Premises comply
with the requirements of this Lease, and are suitable for the purposes for which
the Premises are hereby leased. In that regard, LANDLORD HEREBY DISCLAIMS, AND
TENANT HEREBY WAIVES, ANY WARRANTY OF SUITABILITY WITH RESPECT TO THE PREMISES.
In addition, LANDLORD MAKES NO WARRANTY AS TO THE ABSENCE OF ANY TOXIC OR
OTHERWISE HAZARDOUS SUBSTANCES.

      4. Rent.

            a. Tenant shall timely pay to Landlord the Basic Rental and all
additional sums to be paid by Tenant to Landlord under this Lease, including the
amounts set forth in subparagraph b. below and Exhibit D, without deduction or
set off, except as otherwise provided herein, at the address specified for
Landlord in the Basic Lease Information (or such other address as Landlord may
from time to time designate in writing to Tenant). Basic Rental, adjusted as
herein provided, shall be payable monthly in advance. The first monthly
installment of Basic Rental shall be payable on the Commencement Date and a like
monthly installment of Basic Rental shall be due on the first day of the second
full calendar month of the Term and continuing thereafter on the first day of
each succeeding calendar month during the Term.

            b. On the first day of each calendar month during the Term, Tenant
shall pay to Landlord an amount equal to the cost of all electricity used by the
Premises (the "Electrical Costs") for the prior calendar month. Landlord will
determine the amount of Tenant's consumption of electricity by a separate
sub-meter in the Premises, installed, maintained, and read by Landlord, at
Tenant's expense (provided, however, that the cost of installing and maintaining


                                       1


the software associated with the sub-metering will be at Landlord's expense).
Until such time as Landlord is able to calculate the actual Electrical Costs
based upon the reading of the sub-meter, but in no event more than three (3)
calendar months, Tenant shall pay to Landlord an estimated amount of Electrical
Costs equal to the product of (i) $2.25, multiplied by (ii) the rentable square
feet in the Premises. As soon as practicable, Landlord shall furnish to Tenant a
statement (the "Initial Electrical Cost Statement") of Tenant's actual
Electrical Costs for any calendar months where the estimate was used. If the
Initial Electrical Cost Statement reveals that Tenant paid more for Electrical
Costs than was actually incurred for such calendar months, then Landlord shall
promptly reimburse Tenant such excess, or Landlord will credit such excess
against the next Rent payment due from Tenant; likewise, if Tenant paid less
than the amount actually incurred for Electrical Costs, then Tenant shall
promptly pay Landlord such deficiency. Electrical Costs due for the last
calendar month of the Term shall be due within ten (10) days of Tenant's receipt
of an invoice therefor.

      5. Delinquent Payment; Handling Charges. All payments required of Tenant
hereunder shall bear interest after an Event of Default until paid at the
maximum lawful rate. Alternatively, Landlord may charge Tenant a fee equal to
10% of the delinquent payment to reimburse Landlord for its cost and
inconvenience incurred as a consequence of Tenant's delinquency. In no event,
however, shall the charges permitted under this Section 5 or elsewhere in this
Lease, to the extent the same are considered to be interest under applicable
law, exceed the maximum lawful rate of interest.

      6. Landlord's Obligations.

            a. Services. Provided no Event of Default exists, Landlord shall
furnish to Tenant (i) water (hot and cold) at those points of supply provided
for general use of tenants of the Building; (ii) heated and refrigerated air
conditioning, as appropriate, during the Building hours established by Landlord
from time to time, and at such temperatures and in such amounts as is customary
for office buildings located in the central business district of Fort Worth,
Texas; (iii) janitorial service to the Premises (other than the Secured Areas)
on weekdays other than holidays for Building-standard installations (Landlord
reserves the right to bill Tenant separately for extra janitorial service
required for non-standard installations) and such window washing as may from
time to time in Landlord's judgment be reasonably required but not less than two
times per year; (iv) elevators for ingress and egress to the floor on which the
Premises are located, in common with other tenants, provided that Landlord may
reasonably limit the number of elevators to be in operation at times other than
during customary Building hours and on holidays; (v) replacement of
Building-standard light bulbs and fluorescent tubes; and (vi) electrical current
during normal Building hours other than for special lighting, equipment that
requires more than 277/480 volts, or other equipment whose electrical energy
consumption exceeds normal office usage. Landlord shall maintain the common
areas of the Building in reasonably good order and condition, except for damage
occasioned by Tenant or its employees, agents or invitees. If Tenant desires any
of the services specified in this Section 6a. at any time other than times
herein designated, such services shall be supplied to Tenant upon the written
request of Tenant delivered to Landlord before 3:00 p.m. two (2) business days
preceding such extra usage, and Tenant shall


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pay to Landlord the cost of such services within ten (10) days after Landlord
has delivered to Tenant an invoice therefor. Notwithstanding anything to the
contrary contained in the preceding sentence, Tenant may obtain heated and
refrigerated air conditioning at times other than herein designated without any
notice to Landlord, and Tenant will pay for the cost of such additional usage in
accordance with Section 4b.

            b. Excess Utility Use. Landlord shall not be required to furnish
electrical current for special lighting, equipment that requires more than
277/480 volts, or other equipment whose electrical energy consumption exceeds
normal office usage. If Tenant's requirements for or consumption of electricity
exceed the electricity to be provided by Landlord as described in Section 6a.,
Landlord shall, at Tenant's expense, make reasonable efforts to supply such
service through the then-existing feeders and risers serving the Building and
the Premises, and Tenant shall pay to Landlord the cost of such service in
accordance with Section 4b. Tenant shall not install any electrical equipment
requiring special wiring or requiring voltage in excess of 277/480 volts or
otherwise exceeding Building capacity unless approved in advance by Landlord.
The use of electricity in the Premises shall not exceed the capacity of existing
feeders and risers to or wiring in the Premises. Any risers or wiring required
to meet Tenant's excess electrical requirements shall, upon Tenant's written
request, be installed by Landlord, at Tenant's cost, if, in Landlord's sole and
absolute judgment, the same are necessary and shall not cause permanent damage
or injury to the Building or the Premises, cause or create a dangerous or
hazardous condition, entail excessive or unreasonable alterations, repairs, or
expenses, or interfere with or disturb other tenants of the Building. If Tenant
uses machines or equipment (other than general office machines) in the Premises
which affect the temperature otherwise maintained by the air conditioning system
or otherwise overload any utility, Landlord may install supplemental air
conditioning units or other supplemental equipment in the Premises, and the cost
thereof, including the cost of installation, operation, use, and maintenance,
shall be paid by Tenant to Landlord within ten (10) days after Landlord has
delivered to Tenant an invoice therefor.

            c. Changes in Service Providers. If permitted by law, Landlord shall
have the sole and exclusive right, in its absolute discretion, at any time
during the Term to either contract for service from an alternate supplier or
suppliers of services, including without limitation electrical services (each an
"Alternate Supplier") or continue to contract for service from the current
supplier (the "Current Supplier") of such services. Tenant agrees to cooperate
with Landlord, the Current Supplier and any Alternate Supplier at all times, and
as reasonably necessary, shall allow Landlord, Current Supplier and any
Alternate Supplier reasonable access to the Premises (including without
limitation access to any electric lines, feeders, risers, wiring and other
machinery located in the Premises, but excluding the Secured Areas) in
connection with such services. Landlord shall not be liable or responsible for
any loss, damage, or expense that Tenant may sustain or incur by reason of any
change, failure, interference, disruption, or defect in the supply or character
of the services, including without limitation electric energy, furnished to the
Premises, or if the quantity or character of the services varies from the
quantity or character of the services provided to the Premises as of the
Commencement Date. No change, failure, defect, unavailability, or unsuitability
resulting from a change in any service shall constitute an actual or
constructive eviction, in whole or in part, or entitle Tenant to any abatement
or diminution of


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rent, or relieve Tenant from any of its obligations under the Lease, except as
provided in Section 6d. below.

            d. Restoration of Services; Abatement. Landlord shall use reasonable
efforts to restore any service that Landlord has contracted to provide to Tenant
that becomes unavailable; however, such unavailability shall not render Landlord
liable for any damages caused thereby, be a constructive eviction of Tenant,
constitute a breach of any implied warranty, or, except as provided in the next
sentences entitle Tenant to any abatement of Tenant's obligations hereunder. If
because of the unavailability of any service that Landlord has contracted to
provide to Tenant, Tenant is prevented from using the bank lobby area or the
second floor computer operations, then Tenant shall, as an additional remedy
therefore, be entitled to a reasonable abatement of Rent for each day that
Tenant is so prevented from using the bank lobby or the computer operations on
the second floor; provided however if the unavailability of service is due to
factors beyond the control of Landlord, and is unrelated to the actions or
inaction of Landlord, then Tenant shall be entitled to a reasonable abatement of
Rent for each day after the 5th day that Tenant is so prevented from using the
bank lobby or the computer operations on the second floor. If Tenant is
prevented from using the entire remaining portion of the Premises (i.e., all of
the Premises other than the bank lobby and the second floor computer operations)
for more than five (5) consecutive days because of the unavailability of any
service that Landlord has contracted to provide to Tenant, then Tenant shall, as
an additional remedy therefore, be entitled to a reasonable abatement of Rent
for each day (after such 5-day period) that Tenant is so prevented from using
that portion of the Premises other than the bank lobby and the computer
operations on the second floor. Rent shall not abate, however, in any event in
which Tenant's actions caused the unavailability of such service.

      7. Improvements; Alterations; Repairs; Maintenance.

            a. Improvements; Alterations. Except as otherwise expressly provided
herein, improvements to the Premises shall be installed (i) by Landlord or by
contractors approved in writing by Landlord, (ii) at the expense of Tenant, and
(iii) only in accordance with plans and specifications which have been
previously submitted to and approved in writing by Landlord. After the initial
Tenant improvements are made, if any, no alterations or physical additions in or
to the Premises may be made without Landlord's prior written consent, which
consent shall not be unreasonably withheld. Unless otherwise authorized under
the provisions of this Lease, Tenant shall not paint or install lighting or
decorations, signs, window or door lettering, or advertising media of any type
on or about the Premises without the prior written consent of Landlord, which
consent shall not be unreasonably withheld. All alterations, additions, or
improvements (whether temporary or permanent in character, and including without
limitation all air-conditioning equipment and all other equipment that is in any
manner connected to the Building's plumbing system) made in or upon the
Premises, either by Landlord or Tenant, shall be Landlord's property at the end
of the Term and shall remain on the Premises without compensation to Tenant.
Approval by Landlord of any of Tenant's drawings and plans and specifications
prepared in connection with any improvements in the Premises shall not
constitute a representation or warranty of Landlord as to the adequacy or
sufficiency of such drawings, plans and specifications,


                                       4


or the improvements to which they relate, for any use, purpose, or condition,
but such approval shall merely be the consent of Landlord as required hereunder.

            b. Repairs; Maintenance. Tenant shall maintain the Premises in a
clean, safe, operable, attractive condition, and shall not permit or allow to
remain any waste or damage to any portion of the Premises. Tenant shall repair
or replace, subject to Landlord's direction and supervision, any damage to the
Building caused by Tenant or Tenant's agents, contractors, or invitees. If (1)
Tenant fails to commence such repairs or replacements within fifteen (15) days
after the occurrence of such damage, or thereafter fails to pursue diligently
the completion thereof, or (2) notwithstanding such diligence, Tenant fails to
complete such repairs or replacements within forty-five (45) days after the
occurrence of such damage, then Landlord may make the same at Tenant's cost,
which shall be payable to Landlord within ten (10) days after Landlord has
delivered to Tenant an invoice therefore

            c. Performance of Work. All work described in this Section 7 (that
is, all improvements, alterations, repairs and maintenance) shall be performed
only by Landlord or by contractors approved in writing by Landlord. Tenant shall
cause all contractors and subcontractors to procure and maintain insurance
coverage against such risks, in such amounts, and with such companies as
Landlord may reasonably require, and if required by Landlord to procure payment
and performance bonds reasonably satisfactory to Landlord covering the cost of
the work. All such work shall be performed in accordance with all legal
requirements and in a good and workmanlike manner so as not to damage the
Premises, the primary structure or structural qualities of the Building, or
plumbing, electrical lines, or any other utility transmission facilities. All
such work which may affect the HVAC, electrical system, or plumbing must be
approved by the Landlord, which approval shall not be unreasonably withheld.

            d. Mechanic's Liens. Tenant shall not permit any mechanic's liens to
be filed against the Premises or the Building for any work performed, materials
furnished, or obligation incurred by or at the request of Tenant. If such a lien
is filed, then Tenant shall, within ten (10) days after Landlord has delivered
notice of the filing to Tenant, either pay the amount of the lien or diligently
contest such lien and if required by Landlord deliver to Landlord a bond or
other security reasonably satisfactory to Landlord. If Tenant fails to timely
take either such action, then Landlord may pay the lien claim without inquiry as
to the validity thereof, and any amounts so paid, including expenses and
interest, shall be paid by Tenant to Landlord within ten (10) days after
Landlord has delivered to Tenant an invoice therefor.

      8. Use; Smoke-Free Environment. Tenant shall continuously occupy and use
the Premises only for the Permitted Use and shall comply with all laws, orders,
rules, and regulations relating to the use, condition, and occupancy of the
Premises, including without limitation, any requirements of the Americans With
Disabilities Act (Public Law (July 28, 1990)), as amended, and the Texas
Architectural Barriers Act (Article 9102, Tex. Rev. Civ. St. (1991)), as amended
(collectively, the "Accessibility Laws"). The Premises shall not be used for any
use which is disreputable or creates extraordinary fire hazards or results in an
increased rate of insurance on the Building or its contents or the storage of
any hazardous materials or substances. If, because


                                       5


of Tenant's acts, the rate of insurance on the Building or its contents
increases, then such acts shall be an Event of Default, Tenant shall pay to
Landlord the amount of such increase on demand, and acceptance of such payment
shall not constitute a waiver of any of Landlord's other rights. Tenant shall
conduct its business and control its agents, employees, and invitees in such a
manner as not to create any nuisance or interfere with other tenants or Landlord
in its management of the Building. Tenant acknowledges that the Building has
been declared a smoke-free building. No smoking is allowed in the Premises nor
anywhere in the Building, including stairwells and restrooms. If Tenant violates
the no-smoking rule, Tenant can be declared in default of this Lease and the
remedies available to Landlord in Section 17 may be exercised.

      9. Assignment and Subletting.

            a. Transfers; Consent. Tenant shall not, without the prior written
consent of Landlord (which Landlord may grant or deny in its sole discretion),
(i) advertise that any portion of the Premises is available for lease, (ii)
assign, transfer, or encumber this Lease or any estate or interest herein,
whether directly or by operation of law, (iii) permit any other entity to become
Tenant hereunder by merger, consolidation, or other reorganization, (iv) if
Tenant is an entity other than a corporation whose stock is publicly traded,
permit the transfer of an ownership interest in Tenant so as to result in a
change in the current control of Tenant, (v) sublet any portion of the Premises,
(vi) grant any license, concession, or other right of occupancy of any portion
of the Premises, or (vii) permit the use of the Premises by any parties other
than Tenant (any of the events listed in clauses (ii) through (vii) being a
"Transfer"). Notwithstanding the foregoing provisions, Landlord shall not
unreasonably withhold such consent to such sublessee or assignee if (1) the
creditworthiness of such sublessee or assignee is equal or greater to the
creditworthiness of Tenant as determined by Landlord, (2) any such sublessee or
assignee is of a character, kind and type customarily found in first-class
office buildings in Fort Worth, Texas, (3) such sublease or assignment does not
violate any lease agreement with any other tenant or potential tenant with which
Landlord has entered into a lease or a letter of intent (as applicable) in the
Building, and (4) the use of the Premises by such proposed assignee or sublessee
is permitted under this Lease.

            Without limiting the foregoing, in no event shall the following be
considered as suitable assignees or sublessees under this subsection a: any
party with whom Landlord has, within the prior ninety (90) days, been actively
negotiating to lease space in the Building directly from Landlord; any health
care professional or health care service organization; schools or similar
organizations; employment agencies; radio, television or other communication
stations; restaurants; and retailers offering retail services from the Premises.

            Tenant shall, however, have the absolute and unconditional right to
assign or sublease the Premises or any portion thereof to a corporation that is
controlled by, controlling, or under common control with, Tenant, or is the
surviving corporation in a merger, consolidation or other reorganization
involving Tenant, or is the purchaser of all or substantially all of Tenant's
assets.


                                       6


            If Tenant requests Landlord's consent to a Transfer, then Tenant
shall provide Landlord with a written description of all terms and conditions of
the proposed Transfer, copies of the proposed documentation, and the following
information about the proposed transferee: name and address; reasonably
satisfactory information about its business and business history; its proposed
use of the Premises; banking, financial, and other credit information reasonably
available to Tenant; and general references sufficient to enable Landlord to
determine the proposed transferee's creditworthiness and character. Tenant shall
reimburse Landlord for its reasonable attorneys' fees and other reasonable
expenses incurred in connection with considering any request for its consent to
a Transfer. If Landlord consents to a proposed Transfer, then the proposed
transferee shall deliver to Landlord a written agreement whereby it expressly
assumes the Tenant's obligations hereunder; however, any transferee of less than
all of the space in the Premises shall be liable only for obligations under this
Lease that are properly allocable to the space subject to the Transfer, and only
to the extent of the rent it has agreed to pay Tenant therefor. Landlord's
consent to any Transfer shall not waive Landlord's rights as to any subsequent
Transfers. If an Event of Default occurs while the Premises or any part thereof
are subject to a Transfer, then Landlord, in addition to its other remedies, may
collect directly from such transferee all rents becoming due to Tenant and apply
such rents against Rent. Tenant authorizes its transferees to make payments of
rent directly to Landlord upon receipt of notice from Landlord to do so.

            b. Additional Compensation. Tenant shall pay to Landlord,
immediately upon receipt thereof, all compensation received by Tenant for a
Transfer that exceeds the Rent allocable to the portion of the Premises covered
thereby.

      10. Insurance; Waivers; Subrogation; Indemnity

            a. Insurance. Tenant shall at its expense procure and maintain
throughout the Term the following insurance policies: (i) commercial general
liability insurance in amounts of not less than a combined single limit of
$2,000,000 or such other amounts as Landlord may from time to time reasonably
require, insuring Tenant, Landlord, and Landlord's property manager against all
liability for injury to or death of a person or persons or damage to or loss of
use of property arising from the use and occupancy of the Premises, (ii) special
form or all risk insurance covering the replacement value of Tenant's property
and improvements, and other property (including property of others), in the
Premises, and (iii) business income and extra expense insurance. Tenant's
insurance shall provide primary coverage to Landlord when any policy issued to
Landlord provides duplicate or similar coverage, and in such circumstance
Landlord's policy will be excess over Tenant's policy. Tenant shall furnish
certificates of such insurance and such other evidence satisfactory to Landlord
(including copies of policies) of the maintenance of all insurance coverages
required hereunder, and Tenant shall obtain a written obligation on the part of
each insurance company to notify Landlord at least ten (10) days before
cancellation or a material change of any such insurance. All such insurance
policies shall be in form, and issued by companies, reasonably satisfactory to
Landlord.

            b. Waiver; No Subrogation. Landlord shall not be liable to Tenant or
those claiming by, through, or under Tenant for any injury to or death of any
person or persons or the


                                       7


damage to or theft, destruction, loss, or loss of use of any property (a "Loss")
caused by casualty, theft, fire, third parties, or any other matter beyond the
control of Landlord, or for any injury or damage or inconvenience which may
arise through repair or alteration of any part of the Building, or failure to
make repairs, or from any lapse or failure of any security measure, or from any
other cause, except if such Loss is caused by Landlord's negligence or
misconduct. Landlord and Tenant each waives any claim it might have against the
other for any damage to or theft, destruction, loss, or loss of use of any
property, to the extent the same is insured against under any insurance policy
that covers the Building, the Premises, Landlord's or Tenant's fixtures,
personal property, leasehold improvements, or business, or is required to be
insured against under the terms hereof, regardless of whether the negligence or
fault of the other party caused such loss; however, either Landlord's or
Tenant's waiver shall not include any deductible amounts on insurance policies
carried by either Landlord or Tenant. If required to effect the foregoing
waiver, each party shall cause its insurance carrier to endorse all applicable
policies waiving the carrier's rights of recovery under subrogation or otherwise
against the other party.

            c. Indemnity. Subject to Section 10b., Tenant shall defend,
indemnify, and hold harmless Landlord and its agents from and against all
claims, demands, liabilities, causes of action, suits, damages, judgments, and
expenses (including attorneys' fees) for any Loss arising from any occurrence on
the Premises or from Tenant's failure to perform its obligations under this
Lease (other than a Loss arising from the negligence or misconduct of Landlord
or its agents). This indemnity provision shall survive termination or expiration
of this Lease.

      11. Subordination, Attornment; Notice to Landlord's Mortgagee

            a. Subordination. This Lease shall be subordinate to any first lien
deed of trust, mortgage, or other security instrument (a "Mortgage"), or any
ground lease, master lease, or primary lease (a "Primary Lease"), that now or
hereafter covers all or any part of the Premises (the mortgagee under any
Mortgage or the lessor under any Primary Lease is referred to herein as
"Landlord's Mortgagee").

            b. Attornment. Tenant shall attorn to any party succeeding to
Landlord's interest in the Premises, whether by purchase, foreclosure, deed in
lieu of foreclosure, power of sale, termination of lease, or otherwise, upon
such party's request, and shall execute such agreements confirming such
attornment as such party may reasonably request; provided that with respect to
any party succeeding to Landlord's interest by foreclosure, deed in lieu of
foreclosure or power of sale, Tenant shall have previously received an
acceptable non-disturbance agreement from the party succeeding to Landlord's
interest, which non-disturbance agreement provides, among other things, that the
party succeeding to Landlord's interest will not include Tenant in any
foreclosure proceedings; and will authorize Tenant to rely on any notice from
the Landlord's lender to pay Rent to it rather than to Landlord.

            c. Self Operative Clause. The above subordination clause is
self-operative and no further instruments of subordination need be required by
any Landlord's Mortgagee.


                                       8


Tenant agrees that upon the request of Landlord or any Landlord's Mortgagee,
Tenant will, within ten (10) days of such request, to execute such further
instruments subordinating this Lease as Landlord or Landlord's Mortgagee may
request.

            d. Notice to Landlord's Mortgagee. Tenant shall not seek to enforce
any remedy it may have for any default on the part of the Landlord without first
giving written notice by certified mail, return receipt requested, specifying
the default in reasonable detail, to any Landlord's Mortgagee whose address has
been given to Tenant, and affording such Landlord's Mortgagee a reasonable
opportunity to perform Landlord's obligations hereunder.

      12. Rules and Regulations. Tenant shall comply with the rules and
regulations of the Building which are attached hereto as Exhibit C. Landlord
may, from time to time, change such rules and regulations for the safety, care,
or cleanliness of the Building and related facilities, provided that such
changes are applicable to all tenants of the Building and will not unreasonably
interfere with Tenant's use of the Premises. Tenant shall be responsible for the
compliance with such rules and regulations by its employees, agents, and
invitees.

      13. Condemnation.

            a. Taking - Landlord's and Tenant's Rights. If any part of the
Building is taken by right of eminent domain or conveyed in lieu thereof (a
"Taking"), and such Taking prevents Tenant from conducting its business in the
Premises in a manner reasonably comparable to that conducted immediately before
such Taking, then Tenant may terminate this Lease as of the date of such Taking
by giving written notice to Landlord within sixty (60) after the Taking, and the
Rent shall be apportioned as of the date of such Taking. If Tenant does not
terminate this Lease, then Basic Rental shall be abated on a reasonable basis as
to that portion of the Premises rendered untenantable by the Taking.

            b. Taking - Landlord's Rights. If any material portion, but less
than all, of the Building becomes subject to a Taking, or if Landlord is
required to pay any of the proceeds received for a Taking to Landlord's
Mortgagee, then this Lease, at the option of either Landlord or Tenant,
exercised by written notice to either Landlord or Tenant, as the case may be,
within thirty (30) days after such Taking, shall terminate and Rent shall be
apportioned as of the date of such Taking. If either Landlord or Tenant does not
so terminate this Lease, then this Lease will continue, but if any portion of
the Premises has been taken, Basic Rental shall abate as provided in the last
sentence of Section 13a.

            c. Award. If any Taking occurs, then Landlord shall receive the
entire award or other compensation for the Land, the Building, and other
improvements taken, and Tenant may separately pursue a claim against the
condemnor for the value of Tenant's personal property which Tenant is entitled
to remove under this Lease, moving costs, loss of business, and other claims it
may have, provided such claims to not reduce the award payable to Landlord.

      14. Fire or Other Casualty.


                                       9


            a. Repair Estimate. If the Premises or the Building are damaged by
fire or other casualty (a "Casualty"), Landlord shall, within sixty (60) days
after such Casualty, deliver to Tenant a good faith estimate (the "Damage
Notice") of the time needed to repair the damage caused by such Casualty.

            b. Landlord's and Tenant's Rights. If a material portion of the
Premises or the Building is damaged by Casualty such that (i) Tenant is
prevented from conducting its business in the Premises in a manner reasonably
comparable to that conducted immediately before such Casualty either because, as
a result of such Casualty, Tenant is prevented from conducting its computer
operations on the second floor, or because, as a result of such Casualty, the
public does not have access to the lobby area, or (ii) Landlord estimates that
the damage caused thereby cannot be repaired within 180 days after the
commencement of repair, then Tenant may terminate this Lease by delivering
written notice to Landlord of its election to terminate within thirty (30) days
after the Damage Notice has been delivered to Tenant. If Tenant does not
terminate this Lease, then (subject to Landlord's rights under Section 14c.)
Landlord shall repair the Building or the Premises, as the case may be, as
provided below, and Basic Rental for the portion of the Premises rendered
untenantable by the damage shall be abated on a reasonable basis from the date
of damage until the completion of the repair, unless Tenant caused such damage,
in which case, Tenant shall continue to pay Rent without abatement.

            c. Landlord's Rights. If a Casualty damages a material portion of
the Building, and Landlord makes a good faith determination that restoring the
Premises would be uneconomical, or if Landlord is required to pay any insurance
proceeds arising out of the Casualty to Landlord's Mortgagee, then Landlord may
terminate this Lease by giving written notice of its election to terminate
within thirty (30) days after the Damage Notice has been delivered to Tenant,
and Basic Rental hereunder shall be abated as of the date of the Casualty.

            d. Repair Obligation. If (i) Tenant is able to conduct its business
in the Premises in a manner reasonably comparable to that conducted immediately
before such Casualty, and (ii) the damage caused by such Casualty can be
repaired within 180 days after the commencement of repair, and (iii) neither
party exercises its right, if any, to terminate this Lease following a Casualty,
then Landlord shall, within a reasonable time after such Casualty, commence to
repair the Building and the Premises and shall proceed with reasonable diligence
to restore the Building and Premises to substantially the same condition as they
existed immediately before such Casualty; however, Landlord shall not be
required to repair or replace any part of the furniture, equipment, fixtures,
and other improvements which may have been placed by, or at the request of,
Tenant or other occupants in the Building or the Premises, and Landlord's
obligation to repair or restore the Building or Premises shall be limited to the
extent of the insurance proceeds actually received by Landlord for the Casualty
in question.

      15. Taxes. Tenant shall be liable for all taxes levied or assessed against
personal property, furniture, or fixtures placed by Tenant in the Premises. If
any taxes for which Tenant is liable are levied or assessed against Landlord or
Landlord's property and Landlord elects to pay


                                       10


the same, or if the assessed value of Landlord's property is increased by
inclusion of such personal property, furniture or fixtures and Landlord elects
to pay the taxes based on such increase, then Tenant shall pay to Landlord, upon
demand, that part of such taxes for which Tenant is primarily liable hereunder.

      16. Events of Default. Each of the following occurrences shall constitute
an "Event of Default":

            a. Tenant's failure to pay Rent, or any other sums due from Tenant
to Landlord under the Lease (or any other lease executed by Tenant for space in
the Building), when due and such failure continues for five (5) business days
following written notice thereof (provided, however, that Landlord shall be
obligated to give only two such notices in any calendar year, and after such two
notices, Landlord will no longer be obligated to give any other notice under
this Section 16a. within such calendar year);

            b. Tenant's failure to perform, comply with, or observe any other
agreement or obligation of Tenant under this Lease (or any other lease executed
by Tenant for space in the Building), and such failure continues for twenty (20)
days following written notice thereof; provided that if such failure cannot
reasonably be cured within said twenty (20) day period and Tenant commences to
cure such failure within such 20-day period and thereafter diligently pursues
such cure to completion, then such failure shall not be an Event of Default
unless it is not fully cured within an additional twenty (20) days after the
expiration of the original 20-day period;

            c. The filing of a petition by or against Tenant (the term "Tenant"
shall include, for the purpose of this Section 16c., any guarantor of the
Tenant's obligations hereunder) (i) in any bankruptcy or other insolvency
proceeding; (ii) seeking any relief under any state or federal debtor relief
law; (iii) for the appointment of a liquidator or receiver for all or
substantially all of Tenant's property or for Tenant's interest in this Lease;
or (iv) for the reorganization or modification of Tenant's capital structure;

            d. Tenant shall desert or vacate any portion of the bank lobby that
is located on the first floor of the Building; and

            e. The admission by Tenant that it cannot meet its obligations as
they become due or the making by Tenant of an assignment for the benefit of its
creditors.

      17. Remedies. Upon any Event of Default, Landlord may, in addition to all
other rights and remedies afforded Landlord hereunder or by law or equity, take
any of the following actions:

            a. Terminate this Lease by giving Tenant written notice thereof, in
which event, Tenant shall pay to Landlord the sum of (i) all Rent accrued
hereunder through the date of termination, and (ii) all amounts due under
Section 18a; or


                                       11


            b. Terminate Tenant's right to possession of the Premises without
terminating this Lease by giving written notice thereof to Tenant, in which
event Tenant shall pay to Landlord (i) all Rent and other amounts accrued
hereunder to the date of termination of possession, (ii) all amounts due from
time to time under Section 18a., and (iii) all Rent and other sums required
hereunder to be paid by Tenant during the remainder of the Term, diminished by
any net sums thereafter received by Landlord through reletting the Premises
during such period. Reentry by Landlord in the Premises shall not affect
Tenant's obligations hereunder for the unexpired Term; rather, Landlord may,
from time to time, bring action against Tenant to collect amounts due from
Tenant, without the necessity of Landlord's waiting until the expiration of the
Term. Unless Landlord delivers written notice to Tenant expressly stating that
it has elected to terminate this Lease, all actions taken by Landlord to exclude
or dispossess Tenant of the Premises shall be deemed to be taken under this
Section 17b. If Landlord elects to proceed under this Section 17b., it may at
any time elect to terminate this Lease under Section 17a.

            c. Additionally, without notice, Landlord may alter locks or other
security devices at the Premises to deprive Tenant of access thereto, and
Landlord shall not be required to provide a new key or right of access to
Tenant.

            d. To the extent Landlord is required by applicable law or
undertakes to mitigate Landlord's damages, Tenant nevertheless acknowledges and
agrees that so long as Landlord markets the Premises after Tenant's default in a
manner not materially inconsistent with Landlord's marketing plan for the
Building, as revised from time to time, Landlord shall be conclusively deemed to
have made objectively reasonable efforts to relet the Premises and to have
fulfilled any obligation to mitigate damages by reason of Tenant's default,
without regard to (i) when and if the Premises are in fact relet; (ii) offers or
expressions of willingness to lease the Premises by prospective tenants who do
not meet Landlord's criteria for the Premises; and (iii) whether or not Landlord
leases other space in the Building prior to leasing the Premises. Tenant further
agrees that Landlord may, without breaching any duty to Tenant, lease all or any
part of the Premises to such tenant or tenants as Landlord may deem appropriate,
and on such terms and conditions as Landlord deems appropriate, and that to the
extent Landlord locates prospective tenants meeting Landlord's criteria, the
fact that Landlord may lease other space in the Building prior to leasing the
Premises shall not, in and of itself, be conclusively deemed to be a failure on
Landlord's part to make a reasonable effort to relet the Premises. In no event
shall Landlord be obligated to employ any particular advertising or marketing
means or methods other than those usually employed by Landlord or its leasing
agents without regard to how the space became available for lease. Landlord may
at any time modify the manner, means, or methods employed to market available
space in the Building as long as such modifications are commercially reasonable.

      18. Payment by Tenant; Non-Waiver.

            a. Payment by Tenant. Upon the exercise of any remedy by Landlord
under Section 17 resulting from an Event of Default, Tenant shall pay to
Landlord all costs incurred by Landlord (including court costs and reasonable
attorneys' fees and expenses) in (i) obtaining possession of the Premises, (ii)
removing and storing Tenant's or any other occupant's property,


                                       12


(iii) reasonable costs of repairing, restoring, altering, remodeling, or
otherwise putting the Premises into condition reasonably acceptable to a new
tenant, (iv) if Tenant is dispossessed of the Premises and this Lease is not
terminated, reletting all or any part of the Premises (including brokerage
commissions, reasonable costs of tenant finish work, and other reasonable costs
incidental to such reletting), and (v) enforcing, or advising Landlord of, its
rights, remedies, and recourses arising out of the Event of Default.

            b. No Waiver. Landlord's acceptance of Rent following an Event of
Default shall not waive Landlord's rights regarding such Event of Default. No
waiver by Landlord of any violation or breach of any of the terms contained
herein shall waive Landlord's rights regarding any future violation of such term
or violation of any other term.

      19. Intentionally Deleted

      20. Surrender of Premises. No act by Landlord shall be deemed an
acceptance of a surrender of the Premises, and no agreement to accept a
surrender of the Premises shall be valid unless the same is made in writing and
signed by Landlord. At the expiration or termination of this Lease, Tenant shall
deliver to Landlord the Premises with all improvements located thereon in good
repair and condition, reasonable wear and tear (and condemnation and fire or
other casualty damage not caused by Tenant, as to which Sections 13 and 14 shall
control) excepted, and shall deliver to Landlord all keys to the Premises.
Provided that Tenant has performed all of its obligations hereunder, Tenant may
remove all unattached trade fixtures, furniture, and personal property placed in
the Premises by Tenant (but Tenant shall not remove any such item which was paid
for, in whole or in part, by Landlord), and shall remove such alterations,
additions, improvements, trade fixtures, equipment, and furniture as Landlord
may request. Tenant shall repair all damage caused by such removal. All items
not so removed shall be deemed to have been abandoned by Tenant and may be
appropriated, sold, stored, destroyed, or otherwise disposed of by Landlord
without notice to Tenant and without any obligation to account for such items.
The provisions of this Section 20 shall survive the end of the Term.

      21. Holding Over. If Tenant fails to vacate the Premises at the end of the
Term, then Tenant shall be a tenant at will and, in addition to all other
damages and remedies to which Landlord may be entitled for such holding over,
Tenant shall pay, in addition to the other Rent, a daily Basic Rental equal to
the greater of (a) 150% of the daily Basic Rental payable during the last month
of the Term, or (b) the prevailing rental rate in the Building for similar
space.

      22. Certain Rights Reserved by Landlord. Provided that the exercise of
such rights does not unreasonably interfere with Tenant's occupancy or use of
the Premises nor unreasonably interfere with the conduct of Tenant's business,
Landlord shall have the following rights:

            a. To decorate and to make inspections, repairs, alterations,
additions, changes, or improvements, whether structural or otherwise, in and
about the Building, or any part thereof; for such purposes, to enter upon the
Premises and, during the continuance of any such work, to temporarily close
doors, entryways, public space, and corridors in the Building; to


                                       13


interrupt or temporarily suspend Building services and facilities; and to change
the arrangement and location of entrances or passageways, doors, doorways,
corridors (other than entrances, passageways, doors, doorways and corridors to
the lobby of that portion of the Premises being leased by Tenant for use as a
bank lobby), elevators, stairs, restrooms, or other public parts of the
building.

            b. To take such reasonable measures as Landlord deems advisable for
the security of the Building and its occupants, including without limitation
searching all persons entering or leaving the Building; evacuating the Building
for cause, suspected cause, or for drill purposes; temporarily denying access to
the Building; and closing the Building after normal business hours and on
Saturdays, Sundays, and holidays, subject, however, to Tenant's right to enter
when the Building is closed after normal business hours under such reasonable
regulations as Landlord may prescribe from time to time which may include by way
of example, but not of limitation, access by means of a controlled access
system, or that persons entering or leaving the Building, whether or not during
normal business hours, identify themselves to a security officer by registration
or otherwise and that such persons establish their right to enter or leave the
Building;

            c. To change the name by which the Building is designated; and

            d. To enter the Premises (other than the Secured Areas) at all
reasonable hours to show the Premises to prospective purchasers, lenders, or
tenants.

      23. Intentionally Deleted.

      24. Miscellaneous.

            a. Landlord Transfer. Landlord may transfer, in whole or in part,
the Building and any of its rights under this Lease. If Landlord assigns its
rights under this Lease, then Landlord shall thereby be released from any
further obligations hereunder conditioned upon the assignee assuming in writing
all of Landlord's obligations hereunder.

            b. Landlord's Liability. The liability of Landlord to Tenant for any
default by Landlord under the terms of this Lease shall be limited to Tenant's
actual direct, but not consequential, damages therefor and Landlord's liability
shall be limited to the interest of Landlord in the Building and the Land, and
Landlord shall not be personally liable for any deficiency. This section shall
not be deemed to limit or deny any remedies which Tenant may have in the event
of default by Landlord hereunder which do not involve the personal liability of
Landlord. If Landlord, or any subsequent owner of the Building, sells the
Building, its liability for the performance of its agreements and obligations
under this Lease (except for acts arising prior to such sale) will terminate
upon the sale of the Building, and Tenant agrees to look solely to the purchaser
for the performance of such agreements and obligations. For the purposes of this
paragraph, any holder of a mortgage or deed of trust that affects the Premises
at any time, and any landlord under any lease to which this Lease is subordinate
at any time, will be a subsequent owner of the Building when it succeeds to the
interest of Landlord or any subsequent owner of


                                       14


the Building. Tenant agrees to attorn to any subsequent owners of the Building;
provided, however, that Tenant's attornment to any holder of a mortgage or deed
of trust is subject to the terms and conditions of Section 11b.

            c. Force Majeure. Other than for Tenant's monetary obligations under
this Lease, whenever a period of time is herein prescribed for action to be
taken by either party hereto, such party shall not be liable or responsible for,
and there shall be excluded from the computation for any such period of time,
any delays due to strikes, riots, acts of God, shortages of labor or materials,
war, governmental laws, regulations, or restrictions, or any other causes of any
kind whatsoever which are beyond the control of such party.

            d. Brokerage. Landlord and Tenant each warrant to the other that it
has not dealt with any broker or agent in connection with the negotiation or
execution of this Lease, other than the brokers set forth in the Basic Lease
Information. Tenant and Landlord shall each indemnify the other against all
costs, expenses, attorneys' fees, and other liability for commissions or other
compensation claimed by any broker or agent claiming the same by, through, or
under the indemnifying party.

            e. Estoppel Certificates. From time to time, Tenant shall furnish to
any party designated by Landlord, within ten (10) days after Landlord has made a
request therefor, a certificate signed by Tenant confirming and containing such
factual certifications and representations as to this Lease as Landlord may
reasonably request.

            f. Notices. All notices and other communications given pursuant to
this Lease shall be in writing and shall be (i) mailed by first class, United
States Mail, postage prepaid, certified, with return receipt requested, and
addressed to the parties hereto at the address specified in the Basic Lease
Information, (ii) hand delivered to the intended address, or (iii) sent by
prepaid telegram, cable, facsimile transmission, or telex followed by a
confirmatory letter. Notice sent by certified mail, postage prepaid, shall be
effective three (3) business days after being deposited in the United States
Mail; all other notices shall be effective upon delivery to the address of the
addressee. The parties hereto may change their addresses by giving notice
thereof to the other in conformity with this provision.

            g. Separability. If any clause or provision of this Lease is
illegal, invalid, or unenforceable under present or future laws, then the
remainder of this Lease shall not be affected thereby and in lieu of such clause
or provision, there shall be added as a part of this Lease a clause or provision
as similar in terms to such illegal, invalid, or unenforceable clause or
provision as may be possible and be legal, valid and enforceable.

            h. Entire Agreement; Amendments; Binding Effect. This Lease contains
the entire agreement between the parties, and no rights are created in favor of
either party other than as specified or expressly contemplated in this Lease. No
brochure, rendering, information or correspondence will be deemed to be a part
of this agreement unless specifically incorporated herein by reference. This
Lease may not be amended except by instrument in writing signed by


                                       15


Landlord and Tenant. No provision of this Lease shall be deemed to have been
waived by Landlord unless such waiver is in writing signed by Landlord, and no
custom or practice which may evolve between the parties in the administration of
the terms hereof shall waive or diminish the rights of either Landlord or Tenant
to insist upon the performance by the other in strict accordance with the terms
hereof. The terms and conditions contained in this Lease shall inure to the
benefit of and be binding upon the parties hereto, and upon their respective
successors in interest and legal representatives, except as otherwise herein
expressly provided. This Lease is for the sole benefit of Landlord and Tenant,
and, other than Landlord's Mortgagee, no third party shall be deemed a third
party beneficiary hereof.

            i. Quiet Enjoyment. Provided Tenant has performed all of the terms
and conditions of this Lease to be performed by Tenant, Tenant shall peaceably
and quietly hold and enjoy the Premises for the Term, without hindrance from
Landlord or any party claiming by, through, or under Landlord, subject to the
terms and conditions of this Lease.

            j. Joint and Several Liability. If there is more than one Tenant,
then the obligations hereunder imposed upon Tenant shall be joint and several.
If there is a guarantor of Tenant's obligations hereunder, then the obligations
hereunder imposed upon Tenant shall be the joint and several obligations of
Tenant and such guarantor, and Landlord need not first proceed against Tenant
before proceeding against such guarantor nor shall any such guarantor be
released from its guaranty for any reason whatsoever.

            k. Captions. The captions contained in this Lease are for
convenience of reference only, and do not limit or enlarge the terms and
conditions of this Lease.

            l. No Merger. There shall be no merger of the leasehold estate
hereby created with the fee estate in the Premises or any part thereof if the
same person acquires or holds, directly or indirectly, this Lease or any
interest in this Lease and the fee estate in the leasehold Premises or any
interest in such fee estate.

            m. No Offer. The submission of this Lease to Tenant shall not be
construed as an offer, nor shall Tenant have any rights under this Lease unless
Landlord executes a copy of this Lease and delivers it to Tenant.

            n. Representations and Warranties. LANDLORD'S DUTIES AND WARRANTIES
ARE EXPRESSLY LIMITED TO THOSE SET FORTH IN THIS LEASE. SIMILARLY, THE
WARRANTIES DISCLAIMED BY LANDLORD AND WAIVED BY TENANT ARE EXPRESSLY LIMITED TO
THOSE SET FORTH IN THIS LEASE.

            o. Governing Law. The laws of the State of Texas govern the
interpretation, validity, performance and enforcement of this Lease. Venue for
any action under this Lease is in Tarrant County, Texas.


                                       16


            p. Exhibits. All exhibits and attachments attached hereto are
incorporated herein by this reference.

                              Exhibit A - Outline of Premises
                              Exhibit B - Property Description
                              Exhibit C - Building Rules and Regulations
                              Exhibit D - Operating Expense Escalator
                              Exhibit D-1 - Operating Expense Escalator
                                            Illustration
                              Exhibit E - Completion of Premises
                              Exhibit E-1 - HVAC Installation and Upgrade
                              Exhibit F - Parking
                              Exhibit G - Renewal Options
                              Exhibit H - Right of First Notice
                              Exhibit I - Re-Measure of Premises

      25. Special Provisions.

      a. Landlord's Work. As soon as possible following Tenant's completion of
the Work in accordance with Exhibit E (and in any event within the earlier of
thirty [30] days of Tenant's completion of the Work or the Commencement Date),
Landlord will, at Landlord's expense, and in a good and workmanlike manner, (i)
renovate the elevator cabs to include new flooring and plastic laminate wall
coverings, (ii) renovate the Building lobby area in accordance with the standard
of finish approved by Landlord and Tenant prior to the date hereof, (iii)
upgrade the heating, ventilation, and air conditioning system in accordance with
Exhibit E-1, and (v) ensure that the first floor entrances to the Building which
exclusively serve the Premises satisfy the Accessibility Laws. Within six (6)
full calendar months following the execution of this Lease, Landlord will, at
Landlord's expense, (i) power wash or re-paint the exterior of the Building and
clean the windows of the Building, and (ii) ensure that the fire sprinkler
system includes all areas of the Building (other than the Premises and the sixth
floor of the Building). At such time as the sixth floor of the Building is
leased or remodeled, Landlord will ensure that the fire sprinkler system
includes all areas of the sixth floor.

      b. Signage. Notwithstanding anything to the contrary contained in this
Lease, Tenant may, at Tenant's expense, install signage on the east and south
facia on top of the Building and above the door located at the south entrance to
the Building. All signage is subject to Landlord's requirements and written
approval as to construction, method of attachment, size, shape, height,
lighting, color and general appearance. Tenant agrees to install first-class
signage and to maintain such signage in a first-class manner during the term of
this Lease. If Tenant fails to maintain the signage in a first-class manner,
then Landlord may make any necessary repairs at Tenant's cost, which shall be
payable to Landlord within ten (10) days after Landlord has delivered to Tenant
an invoice therefor.

      c. ATM Machine. Landlord hereby grants to Tenant, upon Tenant's written
election, the right to construct and operate, at Tenant's sole cost and expense,
an ATM drive up machine


                                       17


(the "ATM") on the Land. The ATM will be located on that part of the Land (the
"Kiosk Land") where a kiosk leased to Federal Express is currently located. The
Kiosk Land will be leased to Tenant and included as part of the Premises upon
the same terms and conditions set forth in this Lease, except that: (i) the
rentable square footage will not be modified to include the ATM or the Kiosk
Land, (ii) there will be no adjustment in the Basic Rental, (iii) Landlord will
not provide any allowances with respect to the ATM or the Kiosk Land (e.g.,
construction allowance) or other inducements, (iv) Tenant will be solely
responsible for the construction of the ATM, and (iv) Tenant, at its sole cost
and expense, will be solely responsible for the maintenance of the ATM. Tenant
covenants and agrees that the ATM will not displace more parking spaces than
currently displaced by the existing kiosk leased to Federal Express. Tenant
acknowledges that on the date hereof, the Kiosk Land is currently leased to
Federal Express, and that Tenant can not utilize the Kiosk Land until Federal
Express has vacated the Kiosk Land. Upon Landlord's receipt of Tenant's written
election to lease the Kiosk Land, Landlord will endeavor to deliver the Kiosk
Land to Tenant within forty-five (45) days of Landlord's receipt of such notice.
Following Tenant's exercise of the election provided in this Section 25c., and
upon the request of either Landlord or Tenant, Landlord and Tenant shall execute
an amendment to the Lease confirming the terms upon which the Kiosk Land is
being leased.

      d. Covered Parking. Landlord will construct a covered parking area (the
"Covered Parking Area") for the ten (10) covered reserved parking spaces
allotted to Tenant pursuant to Exhibit F provided that, prior to the start of
construction, Landlord and Tenant mutually agree upon and approve in writing (i)
the cost of constructing the Covered Parking Area, and (ii) the method by which
Tenant will pay for the cost of construction. Tenant agrees to pay for the cost
of construction by either (i) increasing annual Basic Rental by an amount
sufficient to amortize the cost of constructing the Covered Parking Area over
the Term at an interest rate of nine percent (9%), or (ii) by applying a
sufficient amount of the Construction Allowance (as defined in Exhibit E) to the
payment of the cost of constructing the Covered Parking Area. Once the cost of
construction and method of payment has been approved by Landlord and Tenant,
Landlord and Tenant will execute and deliver an amendment to this Lease
confirming either the change in Basic Rental, or the application of the
Construction Allowance to such cost.

      DATED as of the date first above written.

                                    LANDLORD

                                    HULEN SOUTH TOWER LIMITED, a Texas
                                    limited partnership

                                    By:   Isenberg Management Associates,
                                          Inc., a Texas corporation, its sole
                                          general partner

                                          By: /s/ Ralph Isenberg
                                              --------------------------------
                                                Ralph Isenberg
                                                President


                                       18


                                    TENANT

                                    SUMMIT BANK, N.A., a national organization

                                    By:    /s/ Bob G. Scott
                                       ---------------------------------------
                                    Name:  Bob G. Scott
                                         -------------------------------------
                                    Title: Executive Vice President
                                          ------------------------------------


                                       19


                                  EXHIBIT A

The Premises

34,339 rentable square feet, subject to adjustment


                                       20


                                  EXHIBIT B

                                   THE LAND

Being all of Lot 1, Block 1, Hulen Towers Addition to the City of Fort Worth,
Tarrant County, Texas, as recorded in Volume 388/154, pages 86 and 87, Tarrant
County Plat Records.


                                       21


                                    EXHIBIT C

                         BUILDING RULES AND REGULATIONS

      The following rules and regulations shall apply to the Premises, the
Building, the parking garage associated therewith (where applicable), the Land
and the appurtenances thereto. In the event of any conflict between this EXHIBIT
C and the Lease, the terms of the Lease shall control.

1.    Upon initial occupancy, Tenant will receive two (2) suite keys, two (2)
      restroom keys (where applicable), and one (1) post office box key, free of
      charge. Tenant agrees to pay a charge, in an amount fixed by Landlord from
      time to time, for any additional keys issued by Landlord to Tenant. Tenant
      shall not duplicate any keys. No locks shall be allowed on any door of the
      Premises except those installed by Landlord or those installed at the
      Secured Areas.

2.    Landlord will provide and maintain a directory board in the ground floor
      of the Building and allot Tenant's Proportionate Share of the name strips
      for Tenant's use, which in any event will be no less than ten (10) name
      strips.

3.    Tenant will refer all contractor, contractors' representatives and
      installation technicians, rendering any service to Tenant, to Landlord for
      Landlord's supervision, approval and control before performance of any
      contractual service. This provision shall apply to all work performed in
      the Building, including installations of telephones, telegraph equipment
      or any other physical portion of the Building.

4.    Movement in or out of the Building of furniture or office equipment shall
      be restricted to hours designated by Landlord, and all persons in or
      entering the Building shall observe Landlord's security procedures. All
      such movements through the Building entrances, lobby or building common
      areas shall be conducted under Landlord's supervision at such times and in
      such a manner as Landlord may reasonably require. Tenant is to assume all
      risk as to damage to article moved and injury to persons or public engaged
      or not engaged in such movement, including equipment, property and
      personnel of Landlord if damaged or injured as a result of acts in
      connection with carrying out this service for Tenant from time of entering
      the property to completion of work; and Landlord shall not be liable for
      acts of any person engaged in, or any damage or loss to any said property
      or persons resulting from any act in connection with such performed for
      Tenant.

5.    No signs will be allowed in any form on the exterior of the Building or
      windows inside or out, and no signs except in location and style fixed by
      Landlord will be permitted in the public corridors or on corridor doors or
      entrances to the Premises. All signs shall be contracted for by Landlord
      for Tenant at the rate fixed by Landlord from time to time, and Tenant
      will be billed and pay for such service accordingly.


                                       22


6.    No portion of the Premises or any other part of the Building shall at any
      time be used or occupied as sleeping or lodging quarters.

7.    Tenant shall not place, install or operate on the Premises or in any part
      of the Building, any engine, or machinery, or place or use in or about the
      Premises any explosive, gasoline, kerosene, oil, acids, caustics or any
      other flammable, explosive or hazardous material without written consent
      of Landlord. Tenant will, however, be allowed to use a stove, microwave
      and ice maker.

8.    Landlord will not be responsible for lost, damaged or stolen property in
      the Premises or in the common areas, regardless of whether such loss or
      damage occurs when such area is locked against entry or not.

9.    No fish, dogs (except seeing-eye dogs), cats, reptiles or other pets or
      animals shall be brought into or kept in or about the Building, and no
      cages, pens, aquariums or the like for any such animals shall be brought
      into or kept in the Building.

10.   Employees of Landlord shall not receive or carry messages for or to any
      Tenant or other person, nor contract with or render free or paid services
      to any Tenant or Tenant's agents, employees or invitees.

11.   None of the entryways, passages, doors, elevators, elevator doors,
      hallways or stairways shall be blocked or obstructed, nor shall any
      rubbish, litter, trash or material of any nature be placed, emptied or
      thrown into these areas, or such areas be used at any time except for
      access or egress by Tenant's agents, employees or invitees.

12.   The slatted mini-blinds on the exterior windows shall remain in place and
      not be moved or removed by Tenant. No curtains or other window treatments
      shall be placed between the glass and the Building standard window
      treatment, nor added to the Building standard window treatment.

13.   No smoking shall be allowed in the Building, including common areas and
      the Premises.

14.   Landlord may prescribe weight limitations and determine the locations for
      safes and other heavy equipment or items, which shall in all cases be
      placed in the Building so as to distribute weight in a manner acceptable
      to Landlord which may include the use of such supporting devices as
      Landlord may require. All damages to the Building caused by the
      installation or removal of any property of a tenant, or done by a tenant's
      property while in the Building, shall be repaired at the expense of such
      tenant.

15.   Tenant shall not make or permit any improper, objectionable or unpleasant
      noises or odors in the Building or otherwise interfere in any way with
      other tenants or persons having business with them.


                                       23


16.   The Building hours will be between the hours of 7:00 a.m. to 7:00 p.m.
      Monday through Friday (excluding Building holidays), and 8:00 a.m. to 1:00
      p.m. on Saturdays (excluding Building holidays). Building holidays are:
      New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving
      Day and Christmas Day.


                                       24


                                    EXHIBIT D

                           OPERATING EXPENSE ESCALATOR

(a)   Tenant shall pay an amount (per each rentable square foot in the Premises)
      equal to the excess ("Excess") from time to time of actual Basic Cost per
      rentable square foot in the Building over the Basic Cost per rentable
      square foot for calendar year 2003 (the "Base Year"). Landlord will
      collect such amount in a lump sum, to be due within thirty (30) days after
      Landlord furnishes to Tenant the Annual Cost Statement (as defined in
      paragraph [d] of this Exhibit).

(b)   For the purposes of this Exhibit, the term "Basic Cost" shall mean all
      expenses and disbursements of every kind (subject to the limitations set
      forth below) which Landlord incurs, pays or becomes obligated to pay in
      connection with the ownership, operation, and maintenance of the Building
      (including appurtenant rights and easements and the associated parking
      facilities), determined in accordance with generally accepted federal
      income tax basis accounting principles consistently applied, including but
      not limited to the following:

      (i)   Wages and salaries (including management fees) of all employees
            engaged in the operation, repair, replacement, maintenance, and
            security of the Building, including taxes, insurance and benefits
            relating thereto;

      (ii)  All supplies and materials used in the operation, maintenance,
            repair, replacement, and security of the Building;

      (iii) Annual cost of all capital improvements made to the Building which
            although capital in nature can reasonably be expected to reduce the
            normal operating costs of the Building, as well as all capital
            improvements made in order to comply with any law hereafter
            promulgated by any governmental authority relating to energy,
            accessibility, conservation, public safety or security, as amortized
            over the useful economic life of such improvements as determined by
            Landlord in its reasonable discretion (without regard to the period
            over which such improvements may be depreciated or amortized for
            federal income tax purposes);

      (iv)  Cost of all utilities, other than the cost of utilities actually
            reimbursed to Landlord by the Building's tenants;

      (v)   Cost of any insurance or insurance related expense applicable to the
            Building and Landlord's personal property used in connection
            therewith;


                                       25


      (vi)  Cost of repairs, replacements, and general maintenance of the
            Building;

      (vii) Cost of service or maintenance contracts with independent
            contractors for the operation, maintenance, repair, replacement, or
            security of the Building (including, without limitation, elevator
            maintenance, alarm service, window cleaning, HVAC maintenance,
            fountain and sprinkler system maintenance, and interior and exterior
            landscaping); and

      (viii)Subject to the following sentence, all taxes and assessments and
            governmental charges whether federal, state, county or municipal,
            and whether they be by taxing districts or authorities presently
            taxing or by others, subsequently created or otherwise, and any
            other taxes and assessments attributable to the Building (or its
            operation), and the grounds, parking areas, driveways, and alleys
            around the Building, excluding, however, federal and state taxes on
            income (collectively, "Taxes"); if the present method of taxation
            changes so that in lieu of the whole or any part of any Taxes levied
            on the Land or Building, there is levied on Landlord a capital tax
            directly on the rents received therefrom or a franchise tax,
            assessment, or charge based, in whole or in part, upon such rents
            for the Building, then all such taxes, assessments, or charges, or
            the part thereof so based, shall be deemed to be included within the
            term "Taxes" for the purposes hereof. Notwithstanding anything to
            the contrary contained herein, Landlord agrees that for purposes of
            calculating the ad valorem tax portion of the Basic Cost per
            rentable square foot for the Base Year, Landlord will assume that
            the assessed value of the Building and the Land for calendar year
            2003 is $4,500,000, and apply the 2003 tax rate to such assumed
            value. The number derived from applying the 2003 tax rate to
            $4,500,000 is referred to herein as the "Agreed Tax Cost."
            Accordingly, for purposes of calculating the Excess applicable to
            calendar year 2004 and thereafter, Landlord will include the Agreed
            Tax Cost in its calculation of Basic Cost for the Base Year, and the
            greater of (i) the Agreed Tax Cost, or (ii) actual ad valorem taxes
            for such calendar year in its calculation of actual Basic Cost for
            the calendar years following the Base Year. An illustration is
            attached hereto as Exhibit D-1.

(c)   Notwithstanding anything to the contrary contained above, the following
      are specifically excluded from the definition of the term "Basic Cost":

      (i)   Costs to provide goods, services or other benefits to one or more
            tenants or occupants of the Building (other than Tenant) that
            Landlord does not provide to Tenant;

      (ii)  Any costs (including permit, license and inspection fees) incurred
            renovating, improving, decorating, painting or redecorating space
            for tenants, for other occupants or in vacant space, and any cash or
            other consideration paid by Landlord on account of, with respect to
            or in lieu thereof;


                                       26


      (iii) Costs to provide goods, services or other benefits to other tenants
            or occupants for which (a) Landlord is entitled to reimbursement as
            an additional charge or rental over and above Basic Rental
            (including any escalations), or (b) the other tenant or occupant is
            obligated to pay a third party;

      (iv)  Advertising, leasing and promotional costs;

      (v)   Real estate brokerage commissions;

      (vi)  Any rental and any associated costs, either actual or imputed, for
            the Landlord's on site management or leasing office;

      (vii) Any compensation paid to clerks, attendants or other persons working
            in or managing commercial food concessions operated by Landlord;

     (viii) Landlord's general overhead and general administrative expenses
            (but included in Basic Cost will be any general administrative
            expenses incurred by Landlord which are directly attributable to the
            Building);

      (ix)  Wages, salaries or other compensation paid to any executive of
            Landlord or employee above the grade of building manager;

      (x)   Any expenses which, under generally accepted accounting principles
            and sound management practices consistently applied, would not be
            considered a normal building operating expense, unless such expense
            is included in accordance with subparagraph (b)(iii) above;

      (xi)  Costs incurred by Landlord in connection with correcting defects in
            construction and performing Landlord's obligations under Subsections
            25a. and 25d. of the Lease or incurred because of Landlord's
            negligence;

      (xii) Leasing commissions, attorneys' fees and any other expenses incurred
            in connection with negotiations or disputes with tenants or other
            occupants or prospective tenants or other occupants, or associated
            with the enforcement of any leases;

     (xiii) Costs associated with the installation, maintenance and removal of
            any signs for Tenant or any other tenant;

      (xiv) Costs incurred due to Landlord's or any tenant's breach of any
            lease;

      (xv)  Depreciation and amortization of the Building;

      (xvi) Interest on any debt or amortization payments or any mortgages or


                                       27


            deeds of trust or any other debt service or instrument encumbering
            the Building and rental payment and any related costs pursuant to
            any ground lease of land underlying all or any portion of the
            Building;

     (xvii) The costs of repairs or other work incurred by reason of fire,
            windstorm or other casualty (except that deductibles paid will be
            included as Basic Cost) or by the exercise of the right of eminent
            domain to the extent that Landlord is compensated therefor through
            proceeds of insurance or condemnation awards or would have been
            reimbursed if Landlord had in force all insurance required to be
            carried by Landlord under this Lease;

    (xviii) Any loss or cost for which Landlord is reimbursed by its insurance
            carrier or by any tenant's insurance carrier or by any other entity;

      (xix) Landlord's gross receipts taxes, personal and corporate income
            taxes; other business taxes; assessments, franchise, gift and
            transfer taxes; and

      (xx)  Costs incurred to make structural or other changes to the Building
            (including, without limitation, renovating the Building and
            upgrading major Building systems), unless such costs are included in
            accordance with subparagraph (b)(iii) above, or such costs are
            incurred as a result of the actions or negligence of Tenant (in
            which event such costs will be included in Basic Cost).

(d)   The term "Annual Cost Statement" shall mean a statement of Landlord's
      actual Basic Cost for the previous year adjusted as provided in paragraph
      (e) of this Exhibit. By April 1 of each calendar year, Landlord shall
      furnish to Tenant the Annual Cost Statement.

(e)   With respect to any calendar year or partial calendar year in which the
      Building is not occupied to the extent of ninety-five percent (95%) of the
      rentable area thereof, the Basic Cost for such period shall, for the
      purposes hereof, be increased to the amount which would have been incurred
      had the Building been occupied to the extent of ninety-five percent (95%)
      of the rentable area thereof. In making the foregoing determination and
      gross-up adjustment, only those cost components of the Basic Cost actually
      incurred for such calendar year that are considered to be variable costs
      under generally accepted accounting principles (i.e., those costs that
      vary directly with the level of occupancy of the Building) shall be
      adjusted to reflect the amount thereof that would have been incurred if
      the Building were 95% occupied for the entire calendar year. Such gross-up
      adjustment shall be made separately with respect to each such item of cost
      on the basis that each such item of cost varies with Building occupancy,
      as, for example and not by way of limitation, on the basis of the number
      of tenant-occupied square feet of the Building receiving janitorial
      services as to the cost of such services, and on the basis of the number
      of floors served by elevators as to the cost of elevator maintenance. If
      any such item of cost is subject to a contract for the provision of such
      service, such adjustment shall be based upon the level of services and the
      cost of such services under such contract. In no event shall


                                       28


      the application of the foregoing provisions result in any profit to
      Landlord. Notwithstanding any contrary provision contained herein,
      Landlord agrees that the gross-up of costs shall be limited to variable
      costs, and the following items shall not be adjusted in the "gross-up"
      calculation: (i) property taxes, (ii) amortized capital improvement costs,
      (iii) insurance premiums, (iv) landscaping expenses, (v) building security
      costs, and (vi) any other costs that do not vary as a direct function of
      occupancy. Landlord further represents and agrees that the Base Year Basic
      Cost will be calculated on a consistent basis with the calculation of
      Tenant's share of Basic Costs (i.e., that is, with variable Basic Costs
      grossed up if the Landlord is charging Tenant on a grossed up basis).

(f)   Notwithstanding anything to the contrary contained herein, in no event
      will the amount per rentable square foot paid by Tenant for Controllable
      Basic Costs increase by more than six percent (6%) over the amount per
      rentable square foot paid by Tenant for Controllable Basic Costs for the
      previous calendar year. As used herein, the term "Controllable Basic
      Costs" means all items of Basic Costs other than Uncontrollable Basic
      Costs. As used herein, the term "Uncontrollable Basic Costs" means (i) all
      taxes and assessments and governmental charges whether federal, state,
      county or municipal, and whether they be by taxing districts or
      authorities presently taxing or by others, subsequently created or
      otherwise, and any other taxes and assessments attributable to the
      Building (or its operation), and the grounds, parking areas, driveways,
      and alleys around the Building, excluding, however, federal and state
      taxes on income, (ii) dues, taxes or assessments payable under covenants
      attributable to any reciprocal agreement or recorded restriction, (iii)
      cost of any insurance or insurance related expense applicable to the
      Building and Landlord's personal property used in connection therewith,
      (iv) cost of all utilities, including without limitation, the cost of
      water, sewer, trash removal, gas and telephone, and (v) management fees
      calculated as a percentage of gross revenues or as a fixed minimum rate.

(g)   Within thirty (30) days after Landlord delivers to Tenant the Annual Cost
      Statement, Tenant may give Landlord written notice of Tenant's election to
      audit Landlord's records relating to Basic Costs for the prior calendar
      year. If Tenant timely gives this notice, Tenant, at its sole cost, may
      audit Landlord records relating to Basic Costs for only the prior calendar
      year during Landlord's normal business hours, subject to these conditions:
      (i) the audit must be completed within thirty (30) days after Landlord
      makes Landlord's books and records available to Tenant's auditor; (ii) the
      audit must be conducted where Landlord maintains its books and records and
      must not unreasonably interfere with the conduct of Landlord's business;
      and (iii) Tenant and its auditors must treat any audit in a confidential
      manner. This paragraph shall not be construed to limit or abate Tenant's
      obligation to pay any Rent when due. If Landlord and Tenant mutually agree
      that an error occurred and mutually agree as to the amount of the error,
      Landlord shall credit any overpayment determined by the approved audit
      against the next Rent due and owing by Tenant or, if no further Rent is
      due, refund such overpayment directly to Tenant. Likewise, Tenant shall
      pay Landlord any underpayment determined by the approved audit within
      thirty (30) days of determination. If the parties cannot agree on whether
      errors


                                       29


      exist or the cumulative amount of any errors, then the parties shall
      submit such dispute for resolution to a panel of not more than three (3)
      arbitrators with one arbitrator selected by Landlord, one selected by
      Tenant and one selected by the foregoing arbitrators. The arbitrators
      shall hold a Certified Public Accountant certification with experience in
      the real estate industry and none of the arbitrators shall have worked for
      or been employed by Landlord or Tenant for at least three (3) years prior
      to such appointment. After at least ten (10) days prior written notice to
      Landlord and Tenant, the arbitrators shall hold a hearing at which
      Landlord and Tenant may present evidence and the arbitrators shall render
      a decision within twenty (20) days after the date of the hearing. The
      non-prevailing party in the dispute will pay the prevailing party the
      reasonable costs of the arbitration. These obligations will survive the
      expiration of this Lease.


                                       30


                                   EXHIBIT D-1

                    OPERATING EXPENSE ESCALATOR ILLUSTRATION

Disclaimer: This Exhibit is for illustration purposes only. This Exhibit does
not reflect the format of the Annual Cost Statement but is merely a means of
illustrating the manner in which the ad valorem tax component of Basic Cost will
be calculated. All of the numbers utilized in this Exhibit are rough estimates
for illustration purposes only; as such, these numbers have no relationship to,
or bearing on, the actual Basic Cost that Landlord will incur in the Base Year
and subsequent years.

Assumptions
      Rentable square feet in the Building                                68,862
      Rentable square feet in the Premises:                               34,339
      Tax assessed value:                                             $4,500,000
      Tax rate for 2003:                                                   .0322
      All numbers depicted below have been "grossed up"

Summary of Base Year (2003) Basic Cost

Basic Cost excluding ad valorem taxes:                                  $225,800
Basic Cost excluding ad valorem taxes per rentable square foot
  in the Building:                                                         $3.29
Agreed Tax Cost:                                                        $145,000
Agreed Tax Cost per rentable square foot in the Building:                  $2.11


Calculation of Excess for Calendar Year 2004

Base Year Basic Cost excluding ad valorem taxes:                        $225,800
     a. Per rentable square foot in the Building:                          $3.29
2.   2004 Basic Cost excluding ad valorem taxes:                        $250,000
     a. Per rentable square foot in the Building:                          $3.64
3.      Excess excluding ad valorem taxes (line 2 less line 1):        $  24,200
     a. Per rentable square foot in the Building:                         $  .35
4.   Agreed Tax Cost:                                                   $145,000
5.   Ad valorem tax cost for 2004 equals the greater of line
       5a or 5b:                                                        $145,000
     a. Agreed Tax Cost of $145,000, or
     b. Actual ad valorem taxes for 2004 of $130,000
6.   Excess attributable to taxes (line 5 less line 4):                      -0-
     a. Per rentable square foot in the Building:                              0


                                       31


7.   Total Excess including ad valorem taxes (line 3 plus line 6):     $  24,200
     a. Per rentable square foot in the Building:                            .35
8.   Excess to be paid by Tenant (line 7a multiplied by 34,339):       $  12,018


Calculation of Excess for Calendar Year 2005

1.      Base Year Basic Cost excluding ad valorem taxes:                $225,800
     a. Per rentable square foot in the Building:                          $3.29
2.   2005 Basic Cost excluding ad valorem taxes:                        $255,000
     a. Per rentable square foot in the Building:                          $3.71
3.   Excess excluding ad valorem taxes (line 2 less line 1):           $  29,200
     a. Per rentable square foot in the Building:                         $  .42
4.   Agreed Tax Cost:                                                   $145,000
5.   Ad valorem tax cost for 2005 equals the greater of
      line 5a or 5b:                                                    $150,000
     a. Agreed Tax Cost of $145,000, or
     b. Actual ad valorem taxes for 2005 of $150,000
6.   Excess attributable to taxes (line 5 less line 4):                 $  5,000
     a. Per rentable square foot in the Building:                         $  .07
7.      Total Excess including ad valorem taxes (line 3
         plus line 6):                                                 $  34,200
     a. Per rentable square foot in the Building:                            .49
8.      Excess to be paid by Tenant (line 7a multiplied
         by 34,339):                                                   $  16,826


                                       32


                                    EXHIBIT E

                             COMPLETION OF PREMISES
                           (Tenant Performs the Work)

      1. Acceptance of Premises. Subject to Landlord's Work as set forth in
Section 25a. and Exhibit E-1 being done in a good and workmanlike manner, and
except as set forth in this Exhibit, Tenant accepts the Premises in their
"AS-IS" condition as of the date hereof.

      2. Space Plans.

            (a) Preparation and Delivery. On or before fifteen (15) days
following the execution of this Lease (such date is referred to herein as the
"Space Plans Delivery Deadline"), Tenant shall deliver to Landlord a space plan
prepared by a design consultant reasonably acceptable to Landlord (the
"Architect") depicting improvements to be installed in the Premises (the "Space
Plans").

            (b) Approval Process. Landlord shall notify Tenant whether it
approves of the submitted Space Plans within ten (10) business days after
Tenant's submission thereof. If Landlord disapproves of such Space Plans, then
Landlord shall notify Tenant thereof specifying in reasonable detail the reasons
for such disapproval, in which case Tenant shall, within three (3) business days
after such notice, revise such Space Plans in accordance with Landlord's
objections and submit to Landlord for its review and approval. Landlord shall
notify Tenant in writing whether it approves of the resubmitted Space Plans
within three (3) business days after its receipt thereof. This process shall be
repeated until the Space Plans have been finally approved by Landlord and
Tenant. If Landlord fails to notify Tenant that it disapproves of the initial
Space Plans within ten (10) business days (or, in the case of resubmitted Space
Plans, within three [3] business days) after the submission thereof, then
Landlord shall be deemed to have approved the Space Plans in question.

      3. Working Drawings.

            (a) Preparation and Delivery. On or before the thirtieth (30th) day
following the date on which the Space Plans are approved (or deemed approved) by
Landlord and Tenant (such earlier date is referred to herein as the "Working
Drawings Delivery Deadline"), Tenant shall provide to Landlord for its approval
final working drawings, prepared by the Architect, of all improvements that
Tenant proposes to install in the Premises; such working drawings shall include
the partition layout, ceiling plan, electrical outlets and switches, telephone
outlets, drawings for any modifications to the mechanical and plumbing systems
of the Building, and detailed plans and specifications for the construction of
the improvements called for under this Exhibit in accordance with all applicable
Laws.


                                       33


            (b) Approval Process. Landlord shall notify Tenant whether it
approves of the submitted working drawings within ten (10) business days after
Tenant's submission thereof. If Landlord disapproves of such working drawings,
then Landlord shall notify Tenant thereof specifying in reasonable detail the
reasons for such disapproval, in which case Tenant shall, within three (3)
business days after such notice, revise such working drawings in accordance with
Landlord's objections and submit the revised working drawings to Landlord for
its review and approval. Landlord shall notify Tenant in writing whether it
approves of the resubmitted working drawings within three (3) business days
after its receipt thereof. This process shall be repeated until the working
drawings have been finally approved by Tenant and Landlord. If Landlord fails to
notify Tenant that it disapproves of the initial working drawings within ten
(10) business days (or, in the case of resubmitted working drawings, within
three (3) business days) after the submission thereof, then Landlord shall be
deemed to have approved the working drawings in questions.

            (c) Landlord's Approval; Performance of Work. If any of Tenant's
proposed construction work will affect the Building's structure or the
Building's systems, then the working drawings pertaining thereto must be
approved by the Building's engineer of record. Landlord's approval of such
working drawings shall not be unreasonably withheld, provided that (1) they
comply with all Laws, (2) the improvements depicted thereon do not adversely
affect (in the reasonable discretion of Landlord) the Building's structure or
the Building's systems (including the Building's restrooms or mechanical rooms),
the exterior appearance of the Building, or the appearance of the Building's
common areas or elevator lobby areas, (3) such working drawings are sufficiently
detailed to allow construction of the improvements in a good and workmanlike
manner, and (4) the improvements depicted thereon conform to the rules and
regulations promulgated from time to time by Landlord for the construction of
tenant improvements. As used herein, "Working Drawings" shall mean the final
working drawings approved by Landlord, as amended from time to time by any
approved changes thereto, and "Work" shall mean all improvements to be
constructed in accordance with and as indicated on the Working Drawings,
together with any work required by governmental authorities to be made to other
areas of the Building as a result of the improvements indicated by the Working
Drawings. Landlord's approval of the Working Drawings shall not be a
representation or warranty of Landlord that such drawings are adequate for any
use or comply with any Law, but shall merely be the consent of Landlord thereto.
Tenant shall, at Landlord's request, sign the Working Drawings to evidence its
review and approval thereof. After the Working Drawings have been approved,
Tenant shall cause the Work to be performed in accordance with the Working
Drawings.

      4. Contractors; Performance of Work. The Work shall be performed only by
licensed contractors approved in writing by Landlord, which approval shall not
be unreasonably withheld. Any portion of the Work that relates to the
installation or modification of the heating, ventilation and air conditioning
system shall be performed by Landlord's contractor, and the cost of such work
shall be allocated to Landlord and Tenant in accordance with Exhibit E-1. All
contractors shall be required to procure and maintain insurance against such
risks, in such amounts, and with such companies as Landlord may reasonably
require. Certificates of such insurance, with paid receipts therefor, must be
received by Landlord before the Work is


                                       34


commenced. The Work shall be performed in a good and workmanlike manner free of
defects, shall conform strictly with the Working Drawings, and shall be
performed in such a manner and at such times as and not to interfere with or
delay Landlord's other contractors, the operation of the Building, and the
occupancy thereof by other tenants. All contractors shall contact Landlord and
schedule time periods during which they may use Building facilities in
connection with the Work (e.g., elevators, excess electricity, etc.).

      5. Construction Contracts. Unless otherwise agreed in writing by Landlord
and Tenant, each of Tenant's construction contracts shall: (1) provide a
schedule and sequence of construction activities and completion reasonably
acceptable to Landlord, (2) provide that such contractor maintain general
commercial liability insurance of not less than a combined single limit of
$3,000,000 (or with respect to the paint and tile contractors, such other
amounts as may be approved by Landlord) naming Landlord, Landlord's property
management company, Landlord's Mortgagee, Tenant and each of their respective
affiliates as additional insureds, (3) require the contractor to name Landlord,
Landlord's property management company, and Tenant as additional insured on such
contractor's insurance maintained in connection with the construction of the
Work, (4) provide that the contractor perform the Work in substantial accordance
with the Space Plans and Working Drawings and in a good and workmanlike manner;
(5) provide that the contractor is responsible for its daily clean-up work and
final clean-up (including removal of all debris); (6) be assignable following an
Event of Default by Tenant under the lease to landlord and Landlord's
Mortgagees. Tenant shall make a reasonable effort to require that each
construction contract contain a one-year warranty for all defective work and
contain at least a one-year warranty for all workmanship and materials. Tenant
shall notify Landlord if Tenant is unable to obtain these warranties. Landlord
shall have three (3) business days to notify Tenant whether it approves the
proposed construction agreements. If Landlord disapproves of the proposed
construction agreements, then it shall specify in reasonable detail the reasons
for such disapproval, in which case Tenant shall revise the proposed
construction agreements to correct the objections and resubmit them to Landlord
within two (2) business days after Landlord notifies Tenant of its objections
thereto, following which Landlord shall have two (2) business days to notify
Tenant whether it approves the revised construction agreements. If Landlord
fails to notify Tenant that it disapproves of the construction agreements within
three (3) business days after the initial construction agreements or two (2)
business days after the revised construction agreements (as the case may be) are
delivered to Landlord, then Landlord shall be deemed to have approved the
construction agreements.

      6. Change Orders. Tenant may initiate changes in the Work. Each such
change costing in excess of $20,000 must receive the prior written approval of
Landlord, such approval not to be unreasonably withheld or delayed; however, if
such requested change would adversely affect (in the reasonable discretion of
Landlord) (a) the Building's structure or the Building's systems (including the
Building's restrooms or mechanical rooms), (b) the exterior appearance of the
Building, or (c) the appearance of the Building's common areas or elevator lobby
areas, Landlord's approval shall be required and such approval may be withheld
in Landlord's sole and absolute discretion. Tenant shall, upon completion of the
Work, furnish Landlord with an


                                       35


accurate architectural "as-built" plan of the Work as constructed, which plan
shall be incorporated into this Exhibit E by this reference for all purposes.

      7. Costs. Landlord shall bear the cost of performing the Work in an amount
not to exceed $13.00 per rentable square foot, which is estimated to be 34,339
rentable square feet, for a total of $446,407 (the "Construction Allowance").
The Construction Allowance shall be adjusted based upon the actual rentable
square footage. The amount by which the total cost of performing the Work
exceeds the Construction Allowance shall be paid by Tenant. The Construction
Allowance shall be paid to Tenant within thirty (30) days following the date all
of the following conditions have been satisfied: (i) completion of the Work,
(ii) Landlord's receipt of a copy of the certificate of occupancy from the
appropriate municipal authority, and (iii) Landlord's receipt of lien waivers
and releases from all contractors performing the Work.

      In addition to the Construction Allowance, Landlord shall pay to Tenant,
concurrently with the payment of the Construction Allowance, an amount equal to
(i) the cost of constructing a one room unisex bathroom on the first floor of
the Building which will satisfy the Accessibility Laws as they relate to the
bank lobby, plus (ii) the cost of converting and renovating the second floor
bathrooms so that they will satisfy the Accessibility Laws; provided that, prior
to the start of the construction of the Work, Landlord and Tenant mutually agree
upon and approve in writing the cost of constructing or renovating, as the case
may be, such bathrooms. In the event Landlord and Tenant cannot agree upon the
cost of the bathrooms, Landlord will construct or renovate the bathrooms, as the
case may be, at Landlord's expense and in a good and workmanlike manner.

      Furthermore, and in addition to the Construction Allowance, Landlord shall
pay to Tenant, concurrently with the payment of the Construction Allowance, an
amount equal to the actual cost of the sprinkler heads that will be installed in
that portion of the first floor of the Premises that, as of the date of this
Lease, has no sprinkler heads.

      8. Commencement of Construction. Tenant shall commence construction of the
Work on or before the fifth (5th) day after the building permit is issued by the
City of Fort Worth.

      9. Coordination of Construction; Construction Management. All work
required of Tenant under this Exhibit E, must be coordinated with Landlord and
the work to be performed by Landlord under Section 25a. of the Lease. Landlord,
at its expense, shall have the right, but not the obligation, to supervise the
Work and coordinate the relationship between the Work, the Building and the
Building's systems.

      10. Construction Representatives. Landlord's and Tenant's representatives
for coordination of construction and approval of change orders will be as
follows, provided that either party may change its representative upon written
notice to the other:

      Landlord's Representative:          Jason Morahan


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                                          Isenberg Management Associates
                                          1005 W. Jefferson  Boulevard,  Suite
                                          305
                                          Dallas, Texas 75208
                                          Telephone:  214.943.7697
                                          Telecopy:  214.943.7171

      Tenant's Representative:            Mike Fisher
                                          Fisher-Pearson, Inc.
                                          1904 Wenneca
                                          Fort Worth, Texas 76102
                                          Telephone: 817.336.1161
                                          Telecopy:   817.336.1164


                                       37


                                   EXHIBIT E-1

                          HVAC INSTALLATION AND UPGRADE

Landlord's Financial Responsibilities:

o     Installing a new chilled water system for the additional Building
      capacity.
o     Providing Tenant with additional air conditioning on the third floor of
      the Premises as needed.
o     Purchasing hardware for full DDC control of all VAV boxes and fan coils
      including sensors.

Tenant's Financial Responsibilities:

o     Re-ducting entire Premises as needed.
o     Purchase and installation of Liebert Unit needed for second floor of the
      Premises (cooling of all Data Processing areas).
o     Labor for installing DDC hardware on all Tenant VAV boxes and fan coils. o
      Air balance entire Premises.


                                       38


                                    EXHIBIT F

                                     PARKING

Tenant shall be permitted to use eight (8) reserved vehicular parking spaces in
the parking lot associated with the Building (the "Parking Area") during the
Term at no charge. (The eight (8) reserved parking spaces will be located
adjoining the south entrance of the Building and designated for bank customer
use only.) Tenant may also use ninety-two (92) undesignated vehicular parking
spaces in the Parking Area during the Term at no charge; provided that in the
event Landlord constructs the Covered Parking Area as provided in Section 25d.,
then Tenant may use (i) eighty-two (82) undesignated vehicular parking spaces in
the Parking Area during the Term at no charge, and (ii) ten (10) covered
reserved vehicular parking spaces in the Covered Parking Area during the Term at
no charge, with two (2) of such ten (10) spaces to be designated for certain
specified bank officers. Tenant's use of all parking spaces shall be subject to
such terms, conditions and regulations as are from time to time charged or
applicable to patrons of the Parking Area, including, without limitation, the
terms and conditions of that certain Easement for Ingress and Egress and
Reciprocal Parking Agreement which encumbers the Land and which is recorded in
the Real Property Records of Tarrant County, Texas, as amended from time to
time. Landlord shall have no liability if Landlord fails or is unable to
provide, or Tenant is not permitted to use, all or any portion of the parking
spaces to which it is entitled hereunder. If Tenant sublets any portion of the
Premises or assigns any of its interest in this Lease, then the parking spaces
allocated to Tenant hereunder shall be reduced to the extent the ratio between
the rentable square feet of the Premises and the parking spaces granted to
Tenant hereunder exceeds the Building standard ratio of parking space per
rentable square foot as established by Landlord from time to time.


                                       39


                                    EXHIBIT G

                                 RENEWAL OPTIONS

Provided no Event of Default exists and Tenant is occupying the entire Premises
at the time of such election, Tenant may renew this Lease for two (2) additional
periods of five (5) years each on the same terms provided in this Lease (except
as set forth below), by delivering written notice of the exercise thereof to
Landlord no later than six (6) calendar months before the expiration of the then
existing Term. On or before the commencement date of the extended Term in
question, Landlord and Tenant shall execute an amendment to this Lease extending
the Term on the same terms provided in this Lease, except as follows:

      (1)   The Basic Rental payable for each month during each such extended
            Term shall be the greater of (a) the prevailing rental rate for
            office space in the Building at the commencement of such extended
            Term, for space of equivalent quality and size, with the length of
            the extended Term and the credit standing of Tenant to be taken into
            account, or (b) the Basic Rental which was payable hereunder for the
            last year of the immediately preceding Term, as adjusted in the
            manner provided in Exhibit D of this Lease;

      (2)   Tenant shall have no further renewal options unless expressly
            granted by Landlord in writing; and

      (3)   Landlord shall lease to Tenant the Premises in their then-current
            as-is condition.

Tenant's rights under this Exhibit shall terminate if (i) this Lease or Tenant's
right to possession of the Premises is terminated, or (ii) Tenant fails to
timely exercise its option under this Exhibit, time being of the essence with
respect to Tenant's exercise thereof. Tenant may assign this renewal option to
any assignee (but not a sublessee) of the Lease, provided that either (i) such
assignee is a corporation that is controlled by, controlling, or under common
control with, Tenant, or is the surviving corporation in a merger, consolidation
or other reorganization involving Tenant, or is the purchaser of all or
substantially all of Tenant's assets, or (ii) Landlord has expressly consented
to the assignment of this renewal option to such assignee, such consent not to
be unreasonably withheld. Tenant and Landlord shall promptly execute and deliver
an appropriate amendment of this Lease to evidence such terms following
commencement of the extended Term.


                                       40


                                    EXHIBIT H

                              RIGHT OF FIRST NOTICE

(a)   If during the initial term of this Lease, Landlord receives a letter of
      intent or other expression of interest in the First Notice Space from a
      prospective tenant (the "Letter of Intent") regarding any vacant space on
      the fourth floor (the "First Notice Space"), Landlord shall deliver a
      notice to Tenant offering to lease the First Notice Space to Tenant.

(b)   Tenant may elect to lease the First Notice Space in its then as-is
      condition by delivering a notice (the "Response Notice") to Landlord
      within five (5) business days after the date of Landlord's notice
      specifying that Tenant elects either (i) to lease all, but not less than
      all, of the First Notice Space, or (ii) to decline to lease the First
      Notice Space. If (i) Landlord does not receive the Response Notice within
      the 5-day period, or (ii) in the Response Notice Tenant does not elect to
      lease all of the First Notice Space, then Tenant is deemed to have waived
      its right to lease the First Notice Space and Tenant will have no further
      rights to lease the First Notice Space. If, however, Landlord does not
      lease the First Notice Space to the prospective tenant identified in the
      Letter of Intent, then Tenant's right of first notice as outlined in this
      exhibit will continue in full force and effect with respect to the First
      Notice Space.

(c)   If Tenant timely delivers a Response Notice electing to lease all of the
      First Notice Space, then Tenant shall have no right to revoke its right to
      lease the First Notice Space. Tenant's lease of the First Notice Space
      will be upon the same terms and conditions set forth in this Lease except
      that:

      (i)   the First Notice Space will be leased to Tenant for a term
            commencing on the earlier of (x) the date specified in the Letter of
            Intent, (y) the sixtieth day following the date of the Response
            Notice, or (z) such other date mutually agreed upon by Landlord and
            Tenant, and such term shall continue through the termination date of
            this Lease;

      (ii)  if Tenant's election to lease the First Notice Space occurs during
            the first twelve (12) calendar months of the Term, then the Basic
            Rental for the First Notice Space will be calculated at the same
            rate per rentable square foot in effect under this Lease for the
            original Premises; but if Tenant's election to lease the First
            Notice Space occurs after the first twelve (12) calendar months of
            the Term, then the Basic Rental for the First Notice Space will be
            calculated at the same rate per rentable square foot that is quoted
            in the Letter of Intent; and


                                       41


      (iii) if Tenant's election to lease the First Notice Space occurs during
            the first twelve (12) calendar months of the Term, then Tenant will
            receive the same finish-out allowance it received with respect to
            the original Premises; but if Tenant's election to lease the First
            Notice Space occurs after the first twelve (12) calendar months of
            the Term, then Tenant will receive the same finish-out allowance
            quoted in the Letter of Intent.

(d)   Landlord shall prepare, and Landlord and Tenant will execute and deliver,
      within ten (10) days after Landlord's receipt of the Response Notice, an
      amendment to the Lease confirming that the First Notice Space is part of
      the Premises and setting forth the terms and conditions upon which the
      First Notice Space is being leased to Tenant.

(e)   Landlord is not obligated to offer the First Notice Space to Tenant, and
      Tenant may not exercise its option to lease the First Notice Space, if at
      the time Landlord would otherwise be obligated to give the Notice to
      Tenant, Tenant is in default under this Lease.

(f)   Tenant may not assign this option to lease the First Notice Space to any
      assignee of the Lease, nor may any sublessee or assignee exercise this
      option; however, Tenant may assign this right of first notice to any
      assignee of the Lease that is a corporation that is controlled by,
      controlling, or under common control with, Tenant, or is the surviving
      corporation in a merger, consolidation or other reorganization involving
      Tenant, or is the purchaser of all or substantially all of Tenant's
      assets.


                                       42


                                    EXHIBIT I

                             RE-MEASURE OF PREMISES

Landlord and Tenant are each entitled, within fifteen (15) days after the
Commencement Date, to re-measure the Premises. If the Premises does not contain
34,339 square feet, the re-measuring party is entitled, within such thirty (30)
day period, to notify the other party of such fact, which notice must show the
results of such re-measurement and must include the name of the architect who
re-measured the space and copies of such architect's worksheets and
computations. If either Landlord or Tenant does not send such notification
within such fifteen (15) day period, then the party that does not send such
notification will be deemed to have waived the right of re-measurement. If they
both fail to send the notice, then they both will be deemed to have waived the
right of re-measurement and the Premises will be deemed for all purposes to
contain 34,339 square feet. If one party sends the notification of measurement
discrepancy within such 15-day period, then the party so notified will have
fifteen (15) days after the receipt of such notice in which to re-measure the
Premises and provide a written response to the first party indicating that it
either accepts or rejects that party's re-measurement figures, which response
must show the results of such re-measurement and must include the name of the
architect who re-measured the space for the responding party and copies of such
architect's worksheets and computations. Should the party to whom such notice
was sent fail to respond as set forth in the immediately-preceding sentence,
then it will be deemed to have accepted the other party's measurement for all
purposes under this Lease. If, on the other hand, such party notifies the other
party in accordance with the requirements of this paragraph that it does not
accept such other party's calculations, then Tenant and Landlord must select
another, independent architect to re-measure the Premises and such architect's
measurement will be binding unless it varies from either of the other two (2)
measurements by more than two percent (2%), in which event the average of the
two measurements that are numerically closest will be deemed to be the total
square footage of the Premises for all purposes under this Lease. In the event
that the final determination of the total square footage of the Premises is not
the same as the approximate total square footage of the Premises set forth in
the Basic Lease Information, then all terms and provisions of this Lease that
are dependent upon the size of the Premises, including, but not limited to,
Basic Rental and Tenant's Proportionate Share, will automatically be altered
without the need for any further documentation, although each party agrees to
execute an amendment to this Lease reflecting such changes within ten (10) days
after the other party delivers to it a written lease amendment reflecting such
changes, with a request for execution. All notices to be given under the
provisions of this EXHIBIT I shall be in writing.


                                       43