UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington D.C. 20549

                                    FORM 8-K


                Current Report Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported):

                                November 12, 2008

                                TriCo Bancshares
             (Exact name of registrant as specified in its charter)

             California                  0-10661                94-2792841
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(State or other jurisdiction of     (Commission File No.)    (I.R.S. Employer
incorporation or organization)                               Identification No.)

63 Constitution Drive, Chico, California   95973
--------------------------------------------------------------------------------
(Address of principal executive offices)  (Zip Code)

Registrant's telephone number, including area code:(530) 898-0300

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR
    230.425)

[ ] Soliciting  material  pursuant to rule 14a-12 under the Exchange Act (17 CFR
    240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))

Item 5.02  Departure of Directors or Certain  Officers;  Election of  Directors;
Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On  November  12,  2008,  Tri  Counties  Bank (the  "Bank"),  the  wholly  owned
subsidiary of TriCo  Bancshares  (the  "Company")  amended the 2005 Tri Counties
Bank Deferred  Compensation  Plan for Executives and Directors.  On December 30,
2008,  the Company  amended  the 2004 TriCo  Bancshares  Supplemental  Executive
Retirement Plan.  Descriptions of these amendments,  which the Company considers
to be nonmaterial, are included in Item 8.01 below.:


Item 8.01 Other Events.

On November 12,  2008,  the Bank  amended the 2005 Tri  Counties  Bank  Deferred
Compensation  Plan for Executives and Directors to comply with Internal  Revenue
Code Section 409A. These amendments included; increased restrictions on the form
and  timing  of  deferrals,   increased  restrictions  on  changes  to  deferral
elections,  and increased  restrictions on the form and timing of distributions.
These  amendments were effective as of January 1, 2005. These amendments are not
expected to have a material impact on the financial statements of the Company.

On December 30, 2008, the Company amended the 2004 TriCo Bancshares Supplemental
Executive  Retirement  Plan (the  "SERP") to comply with  Internal  Revenue Code
Section 409A and make various other  modifications.  The  amendments to the SERP
included:

     Removal  of  discretion  by the  Compensation  Committee  of the Board (the
     "Committee") to allow payments to terminated participants to begin prior to
     age 62, but not before age 55, and replace it with  payments  automatically
     beginning  upon  termination  but not before age 55.  Reductions in payment
     amounts for payments beginning prior to age 62 remain unchanged.

     Establishment  of a delay in receipt  of  payouts  under the SERP until six
     months after termination for all participants  that become  participants on
     or after  January 1, 2009 and for  participants  designated  as  "Specified
     Employees" under Internal Revenue Code Section 409A that were  participants
     as of December 31, 2008.




     For participants  who become  participants on or after January 1, 2009, the
     Normal  Retirement  Benefit  is equal to the  participant's  final  average
     compensation  multiplied  by the Target  Retirement  Percentage,  which can
     range  from 0% to 45%  depending  on the  participant's  Years of  Credited
     Service.  For participants  who were  participants as of December 31, 2008,
     the  Normal   Retirement   Benefit  remains  unchanged  and  equal  to  the
     participant's   final  average   compensation   multiplied  by  the  Target
     Retirement  Percentage,  which can range  from 0% to 75%  depending  on the
     participant's  Years of Credit Service,  the product of which is reduced by
     the sum of 100% of the  participant's  Estimated  Primary  Social  Security
     Benefit and the participant's ESOP Offset.

These  amendments  were  effective  January 1, 2009.  These  amendments  are not
expected to have a material impact on the financial statements of the Company.

This  description  of the  amendments  to the 2005 Tri  Counties  Bank  Deferred
Compensation  Plan for Executives and Directors and the SERP is qualified in its
entirety by reference to the copies of such plans filed as exhibits to this Form
8-K. Item 1.01 Entry into a Material Definitive Agreement


Item 9.01  Financial Statements and Exhibits

(d) Exhibits

     99.1 2005 Tri Counties Bank Deferred  Compensation  Plan for Executives and
          Directors

     99.2 TriCo Bancshares Supplemental Executive Retirement Plan

SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
     registrant  has duly  caused  this report to be signed on its behalf by the
     undersigned hereunto duly authorized.

Date: January 8, 2009          TRICO BANCSHARES
                               (Registrant)

                            By:/s/Thomas J. Reddish
                               -------------------------------------------------
                               Thomas J. Reddish
                               Executive Vice President
                               Chief Financial Officer




Exhibit 99.1


                           THE 2005 TRI COUNTIES BANK

             DEFERRED COMPENSATION PLAN FOR EXECUTIVES AND DIRECTORS



                                TABLE OF CONTENTS
                                                                        Page
ARTICLE I - PURPOSE........................................................1
ARTICLE II - DEFINITIONS...................................................1
2.1. Participant...........................................................1
2.2. Plan Benefit..........................................................1
2.3. Board.................................................................1
2.4. Committee.............................................................1
2.5. Compensation..........................................................2
2.6. Elective Deferred Compensation........................................2
2.7. Deferral Election.....................................................2
2.8. Deferral Period.......................................................2
2.9. Account...............................................................2
2.10.Distribution Election.................................................3
2.11.Actuarial Equivalent..................................................3
2.12.Determination Date....................................................3
2.13.Interest Rate.........................................................3
2.14.Bonus Interest Rate...................................................3
2.15.Change in Control.....................................................3
2.16.Disability............................................................4
2.17.Termination or Removal For Cause .....................................4
2.18.Unforeseeable Emergency ..............................................5
2.19.Lifetime Deferral Limit...............................................5
2.20.Beneficiary...........................................................5
ARTICLE III - PARTICIPATION AND DEFERRAL COMMITMENTS ......................5
3.1. Eligibility and Participation.........................................5
3.2. Form of Deferral and Minimum Deferral.................................6
ARTICLE IV - DEFERRED COMPENSATION ACCOUNT.................................6
4.1. Accounts........................... ..................................6
4.2. Elective Deferred Compensation........................................6
4.3. Employer Discretionary Contributions..................................6
4.4. Interest..............................................................7
4.5. Determination of Accounts.............................................7
4.6. Vesting of Accounts...................................................7
4.7. Statement of Accounts.................................................7
ARTICLE V - PLAN BENEFITS .................................................7
5.1. Plan Benefit..........................................................7
5.2. Death Benefit.........................................................8
5.3. Unforeseeable Emergency Distributions ................................8
5.4. Distribution Following a Separation From Service......................8
5.5. Distribution Upon a Change in Control.................................9
5.6. Benefit Payment Elections and Subsequent Modifications Thereto .......9
5.7. Withholding Payroll Taxes.............. .............................10
5.8. Commencement of Payments.............................................10
5.9. Payment to Guardian..................................................10
ARTICLE VI - BENEFICIARY DESIGNATION......................................11
6.1. Beneficiary Designation..............................................11
6.2. Amendments...........................................................11
6.3. No Beneficiary Designation...........................................11
6.4. Effect of Payment....................................................11
ARTICLE VII - ADMINISTRATION..............................................11
7.1. Committee and Duties.................................................11
7.2. Agents...............................................................11
7.3. Binding Effect of Decisions .........................................12
7.4. Indemnity of Committee ..............................................12
ARTICLE VIII - CLAIMS PROCEDURE...........................................12
8.1. Claim................................................................12
8.2. Denial of Claim......................................................12
8.3. Review of Claim......................................................12
8.4. Final.. Decision.....................................................12
ARTICLE IX - AMENDMENT AND TERMINATION OF PLAN............................13
9.1. Amendment............................................................13
9.2. Right to Terminate...................................................13
ARTICLE X - MISCELLANEOUS.................................................13
10.1.Unfunded Plan........................................................13
10.2.Unsecured General Creditor...........................................14
10.3.Trust Fund...........................................................14
10.4.Nonassignability.....................................................14
10.5 Not a Contract of Employment.........................................14
10.6.Protective Provisions................................................15
10.7.Terms................................................................15
10.8.Captions.............................................................15
10.9.Governing Laws.......................................................15
10.10.Validity............................................................15
10.11.Notice..............................................................15
10.12.Successors..........................................................15
SIGNATURE PAGE ...........................................................16




                           THE 2005 TRI COUNTIES BANK
             DEFERRED COMPENSATION PLAN FOR EXECUTIVES AND DIRECTORS

This Tri Counties Bank Deferred  Compensation  Plan for Executives and Directors
is effective January 1, 2005 and applies only to those  Participants in the Plan
who serve as certain key Executives of TriCo Bancshares,  Tri Counties Bank, and
subsidiaries  or  affiliates  thereof  (hereinafter,  these  entities  shall  be
referred to as the "Bank" or the "Employer") who are employed by the Employer on
or after  January 1, 2005 and those  Directors  of the Employer on or after this
date.  It is  intended  that  the  Plan  will aid in  retaining  and  attracting
individuals of exceptional ability by providing them with these benefits.

                               ARTICLE I - PURPOSE

The purpose of this Deferred Compensation Plan for Executives and Directors (the
"Plan")  is  to  provide  current  tax  planning   opportunities,   as  well  as
supplemental  funds for retirement or death, for Executives and Directors of the
Employer. It is also intended that the Plan will aid in retaining and attracting
Executives  and Directors of  exceptional  ability by providing  them with these
benefits.  The Plan was  originally  adopted  effective  January  1, 2005 and is
amended and restated as of that date  principally to clarify certain  provisions
governed  by IRC 409A and to reflect  the Plan  operations  under IRC 409A since
January 1, 2005.

                            ARTICLE II - DEFINITIONS

For the  purposes of this Plan,  the  following  terms  shall have the  meanings
indicated, unless the context clearly indicates otherwise:

2.1. Participant

The term  "Participant"  shall mean those  certain key employees or Directors of
the Employer who are participating in this Plan as provided in Article III.

2.2. Plan Benefit

"Plan Benefit" means the benefit payable to a Participant as calculated pursuant
to Articles IV through V.

2.3. Board

"Board" means the Board of Directors of the Employer.

2.4. Committee

"Committee" means the Compensation and Management  Succession Committee of TriCo
Bancshares.

                                       1


2.5. Compensation

As it  applies  to an  Executive,  the term  "Compensation"  shall  refer to the
salary,  bonuses or commissions paid to the Executive during his employment with
Employer for services  performed  during a given Deferral  Period.  The Deferral
Period to which a  commission  relates  shall be the  Deferral  Period  when the
Executive actually performs the services for which the commission is paid. As it
applies to a Director,  "Compensation" shall refer to the retainer,  meeting and
Committee  chairmanship  fees paid to a Director by the Employer with respect to
services  performed as a Board member  during a given  Deferral  Period,  before
reduction for any amounts deferred pursuant to this Plan.  Compensation does not
include expense  reimbursements,  any form of non-cash compensation or benefits.
Compensation  payable after  December 31 of a given  Deferral  Period solely for
services  performed during the Employer's  final payroll period  containing that
December 31 is treated as  Compensation  payable for  services  performed in the
subsequent Deferral Period in which the Compensation is paid.

2.6. Elective Deferred Compensation

The term "Elective Deferred  Compensation" shall mean the amount of Compensation
that a Participant elects to defer pursuant to a Deferral Election Form.

2.7. Deferral Election

"Deferral Election" means an irrevocable  election to defer Compensation made by
a Participant pursuant to Article III and for which a Deferral Election Form, as
prescribed by the Committee, has been timely submitted by the Participant to the
Committee.  The Deferral Election with respect to any particular Deferral Period
cannot be modified  or revoked  after the  deadline  provided in Section 3.1 for
submitting the Deferral Election Form to the Committee for that Deferral Period.
The Committee may prescribe any Deferral  Election Form that is consistent  with
the terms of this Plan. In the event that he fails to file a subsequent Deferral
Election (or a timely subsequent  Deferral  Election) for a particular  Deferral
Period,  the  Participant's  most recent prior  Deferral  Election  shall remain
effective as if completed for that  subsequent  particular  Deferral  Period and
cannot be  modified  or  revoked  after the  December  15 of the  calendar  year
immediately preceding that Deferral Period.

2.8. Deferral Period

"Deferral Period" means the period over which a Participant has elected to defer
a portion of his  Compensation.  Each calendar year shall be a separate Deferral
Period;  provided,  however,  that a Participant's  prior Deferral  Election may
remain effective for a subsequent Deferral Period as described in Section 2.7.

2.9. Account

"Account" means the Account as maintained by the Bank in accordance with Article
IV with  respect to any  deferral  of  Compensation  pursuant  to this  Plan.  A
Participant's Account shall be utilized solely as a device for the determination
and measurement of the amounts to be paid to the Participant pursuant to the
Plan. A Participant's Account shall not constitute or be treated as a trust fund
of any kind.

                                       2


2.10. Distribution Election

The term  "Distribution  Election"  shall mean the form of  distribution  of the
Account  selected  by the  Participant  on the most  recent  valid  Distribution
Election Form. The Committee may prescribe any  Distribution  Election Form that
is consistent with the terms of this Plan.

2.11. Actuarial Equivalent

"Actuarial  Equivalent" means equivalence in value between two (2) or more forms
and/or times of payment  based on a  determination  by an actuary  chosen by the
Bank, using sound actuarial assumptions at the time of such determination.

2.12. Determination Date

"Determination Date" means the last day of each calendar month.

2.13. Interest Rate

"Interest  Rate"  means,  with  respect  to  any  calendar  month,  the  monthly
equivalent of the annual yield of the Moody's Average Corporate Bond Yield Index
for the preceding calendar month as published by Moody's Investor Service,  Inc.
(or any  successor  thereto)  or,  if  such  index  is no  longer  published,  a
substantially similar index selected by the Board.

2.14. Bonus Interest Rate

"Bonus  Interest Rate" means,  with respect to any calendar  month,  the monthly
equivalent of three (3)  percentage  points greater than the annual yield of the
Moody's Average  Corporate Bond Yield Index for the preceding  calendar month as
published by Moody's Investor  Service,  Inc. (or any successor  thereto) or, if
such index is no longer published, a substantially similar index selected by the
Board. The Bonus Interest Rate shall be applied to all deferrals of compensation
and the Account provided the Participant  remains a Director or Executive of the
Company until December 31, 2008. Thereafter,  the Bonus Interest Rate applied to
all  subsequent  deferrals  and the  Account  shall be defined  as: the  monthly
equivalent  of one (1)  percentage  point  greater  than the annual yield of the
Moody's Average  Corporate Bond Yield Index for the preceding  calendar month as
published by Moody's Investor  Service,  Inc. (or any successor  thereto) or, if
such index is no longer published, a substantially similar index selected by the
Board.

2.15. Change in Control

A "Change in  Control"  shall be defined  as  follows to be  interpreted  by the
Committee in a manner that is consistent with IRC 409A and the related  Treasury
regulations:

     (a) The acquisition of more than fifty percent (50%) of the value or voting
     power of the Employer's stock by a person or group;

     (b) The  acquisition  in a period of twelve (12) months or less of at least
     thirtyfive percent (35%) of the Employer's stock by a person or group;

     (c) The  replacement of a majority of the  Employer's  board in a period of
     twelve (12) months or less by Directors who were not endorsed by a majority
     of the current board members; or

     (d) The  acquisition  in a period  of twelve  (12)  months or less of forty
     percent (40%) or more of the Employer's assets by an unrelated entity.

For the purpose of this Agreement, transfers made on account of deaths or gifts,
transfers  between  family members or transfers to a qualified  retirement  plan
maintained by the Employer shall not be considered in determining  whether there
has been a Change in Control.

                                       3


2.16. Disability

For the purpose of this Plan, the Participant will be considered disabled if:

     (a) He is unable to engage in any substantial gainful activity by reason of
     any  medically  determinable  physical  or mental  impairment  which can be
     expected  to result in death or can be  expected  to last for a  continuous
     period of not less than twelve (12) months, or

     (b) He is, by  reason  of any  medically  determinable  physical  or mental
     impairment  which can be  expected to result in death or can be expected to
     last for a continuous period of not less than twelve (12) months, receiving
     income replacement  benefits for a period of not less than three (3) months
     under an  accident  and health plan  covering  employees  of  Participant's
     employer.

2.17. Termination or Removal For Cause

A Termination of an  Executive's  employment or a Removal of a Director shall be
"For Cause" if for any of the following reasons:

     (a) Gross negligence or gross neglect;

     (b) The  commission  of a felony,  misdemeanor,  or any other act involving
     moral  turpitude,  fraud, or dishonesty which has a material adverse impact
     on the Bank;

     (c) The willful  and  intentional  disclosure,  without  authority,  of any
     secret or confidential  information concerning the Bank that has a material
     adverse impact on the Bank; or

     (d) The willful and  intentional  violation of the rules or  regulations of
     any regulatory agency or government  authority having jurisdiction over the
     Bank, which has a material adverse impact on the Bank.

                                       4


2.18. Unforeseeable Emergency

For the purposes of this Plan, an "Unforeseeable Emergency" shall mean a severe
financial hardship to the Participant due to (a) uninsured medical expenses
resulting from an illness or accident of the Participant, the Participant's
spouse, or a dependent of the Participant (as defined in IRC 152

     (a) without regard to IRC  152(b)(1),  152(b)(2) and  152(d)(1)(B))  of the
     Participant;

     (b)  an  uninsured  casualty  loss  pertaining  to  property  owned  by the
     Participant; or,

     (c) other similar extraordinary and unforeseeable  circumstances  involving
     an uninsured loss arising as a result of an event beyond the control of the
     Participant.

2.19. Lifetime Deferral Limit

Total deferred  compensation  is subject to a lifetime limit of one million five
hundred thousand dollars  ($1,500,000.00) and includes all deferred compensation
under this Plan or any prior Tri Counties Bank deferred compensation plan.

2.20. Beneficiary

"Beneficiary"  means the person,  persons or entity entitled under Article VI to
receive any Plan benefits payable after a Participant's death.

              ARTICLE III - PARTICIPATION AND DEFERRAL COMMITMENTS

3.1. Eligibility and Participation

     (a) Eligibility. Eligibility to participate in the Plan shall be limited to
     key Executives and Directors of the Employer.

     (b) Participation.  A Participant may elect to participate in the Plan with
     respect to any Deferral  Period by  submitting a Deferral  Election Form to
     the Committee by December 15 of the calendar year immediately preceding the
     Deferral  Period.  This Section 3.1(b) applies for any Deferral  Period for
     which Section 3.1(c) does not apply.

     (c) Part-Year Participation.  In the case of the Deferral Period in which a
     Participant  first becomes  eligible to  participate in the Plan and who is
     not  participating  in any  other  account  balance  plan  of the  Employer
     (determined  according to Treasury Regulation  1.409A-1(c)(2)),  a Deferral
     Election  Form must be submitted to the  Committee  within thirty (30) days
     after the Participant first becomes eligible to participate in the Plan. In
     addition,  such Deferral  Election Form shall be effective only with regard
     to Compensation paid for services performed following the submission of the
     Deferral Election Form to the Committee  (determined on a pro-rata basis to
     the  extent  required  by  Treasury  regulation   1.409A-2(a)(7)(i)).   The
     determination  of when a Participant  first becomes eligible to participate
     in  the   Plan   shall   be   made   according   to   Treasury   regulation
     1.409A-2(a)(7)(ii).

                                       5


3.2. Form of Deferral and Minimum Deferral

     (a) Deferral  Election.  A Participant  may elect in the Deferral  Election
     Form to defer any  portion  of his  Compensation  for the  Deferral  Period
     immediately  following the calendar year when the Deferral Election Form is
     submitted to the Committee as provided in Section 3.1(b).  The amount to be
     deferred  shall be stated as a dollar amount or percentage of  Compensation
     and must not be less than two thousand four hundred dollars ($2,400) during
     the Deferral Period.

     (b) Deferrals in the Event of Part-Year  Participation.  In the case of the
     first year in which a Participant  becomes  eligible to  participate in the
     Plan (see  paragraph  3.1(c))  he must defer at least two  hundred  dollars
     ($200) per month (stated as a dollar amount or percentage of  Compensation)
     for each of the months  remaining in the Deferral  Period ($200 x number of
     months remaining).

     (c) Transition Rules.  Notwithstanding any provision in this Section 3.2 to
     the contrary, the Committee may authorize a deferral election to the extent
     consistent  with the  transition  rules and  during the  transition  relief
     period provided under IRC 409A and the related  guidance issued in Treasury
     regulations and by the Internal Revenue Service.

                   ARTICLE IV - DEFERRED COMPENSATION ACCOUNT

4.1. Accounts

For record  keeping  purposes  only,  an Account  shall be  maintained  for each
Participant.

4.2. Elective Deferred Compensation

A  Participant's  Elective  Deferred  Compensation  shall  be  credited  to  the
Participant's   Account  as  the  corresponding   non-deferred  portion  of  the
Compensation  becomes or would have become payable.  Any withholding of taxes or
other amounts with respect to Elective Deferred Compensation that is required by
state,   federal  or  local  law  shall  be  withheld  from  the   Participant's
non-deferred  Compensation  to the maximum extent possible with any excess being
withheld from the Participant's  Account. Any such withholding of taxes or other
amounts from the  Participant's  Account shall comply with  Treasury  regulation
1.409A-3(j)(4)(vi) and 1.409A- 3(j)(4)(xi), to the extent applicable.

4.3. Employer Discretionary Contributions

Employer  may  make  Discretionary   Contributions  to  Participants'  Accounts.
Discretionary  Contributions shall be credited at such times and in such amounts
as the  Board  in  its  sole  discretion  shall  determine.  The  amount  of the
Discretionary  Contributions  shall be evidenced in a special Deferral  Election
Form approved by the Board.

                                       6


4.4. Interest

Beginning  January 1, 2005 and  subject to the  provisions  of Section  5.4 with
respect to a Termination for Cause, each Participant's Account shall be credited
monthly with interest  earned based on the Interest Rate or Bonus Interest Rate.
Interest earned shall be calculated as of each Determination Date based upon the
average daily balance of the Account since the preceding  Determination Date and
shall  be  credited  to  the  Participant's  Account  at  that  time.  For  each
Determination   Date  preceding  the   Participant's   Separation  from  Service
(including a Separation  from Service after a Change in Control),  as defined in
Section 5.4, his Account  shall be credited  with  interest  earned at the Bonus
Interest Rate specified in Section 2.14. For each  Determination  Date following
the Participant's  Separation from Service  (including a Separation from Service
after a Change in Control),  his Account shall be credited with interest  earned
at the Interest Rate specified in Section 2.13.

4.5. Determination of Accounts

Each  Participant's  Account as of each  Determination Date shall consist of the
balance  of  the   Participant's   Account  as  of  the  immediately   preceding
Determination  Date,  plus  the  Participant's  Elective  Deferred  Compensation
credited and any Employer  Discretionary  Contributions and any interest earned,
minus the  amount of any  distributions  made  since the  immediately  preceding
Determination Date.

4.6. Vesting of Accounts

Each Participant  shall be vested in the amounts credited to such  Participant's
Account and earnings thereon as follows:

     (a) Amounts  Deferred.  A Participant  shall be one hundred  percent (100%)
     vested at all times in the amount of  Compensation  elected to be  deferred
     under this Plan and Interest thereon,  subject to the provisions of Section
     5.6.

     (b)   Employer   Discretionary   Contributions.    Employer   Discretionary
     Contributions  and  Interest  thereon  shall be  vested as set forth in the
     special  Deferral  Election Form  described in Section 4.3,  subject to the
     provisions of Section 5.6.

4.7. Statement of Accounts

The Bank shall  submit to each  Participant,  within  thirty (30) days after the
close of each  calendar year and at such other time as determined by the Bank, a
statement setting forth the balance to the credit of the Account  maintained for
a Participant.

                            ARTICLE V - PLAN BENEFITS

5.1. Plan Benefit

The  Employer  shall pay a Plan  Benefit  according  to the  provisions  of this
Article V.

                                       7


5.2. Death Benefit

Upon receiving  notice of the death of a Participant,  the Employer shall pay to
the Participant's Beneficiary(ies) a Plan Benefit as follows:

     (a) If the  Participant  dies  after  his Plan  Benefit  payment  has begun
     pursuant to the terms of this Plan,  then the amount  payable  shall be the
     remaining unpaid balance of the Participant's Account, and shall be paid in
     the same form as payments were being made prior to the Participant's death.

     (b) If the  Participant  dies while  serving as an Executive or Director of
     the Employer,  or before his Plan Benefit payment has begun pursuant to the
     terms  of this  Plan,  then  the  amount  payable  shall  be  equal  to the
     Participant's Account, and shall be payable as provided in Section 5.4. Any
     notice  required under this provision shall be in writing and shall include
     an original death certificate.

5.3. Unforeseeable Emergency Distributions

Upon a finding that a Participant has suffered an Unforeseeable  Emergency,  the
Committee may, in its sole discretion, make distributions from the Participant's
Account  prior to the time  specified  for payment of his Plan Benefit under the
Plan.  Any  distribution  made  pursuant  to  this  provision  must  be  made in
accordance  with IRC 409A and the  related  Treasury  regulations,  and must not
exceed the amount required (including  anticipated taxes on the distribution) to
meet the  emergency  financial  need and not  reasonably  available  from  other
resources  of  the  Participant  (including  reimbursement  or  compensation  by
insurance,   liquidation  of  the  Participant's   assets  to  the  extent  such
liquidation itself would not cause severe financial hardship).  Each request for
distribution due to an Unforeseeable Emergency shall be made at such time and in
such  manner  as the  Committee  shall  determine,  and  shall be  effective  in
accordance  with such rules as the Committee  shall establish from time to time.
Any  distribution  under this Section 5.3 shall be paid to the  Participant in a
single lump sum as soon as administratively practicable following receipt of the
appropriate forms and information required by and acceptable to the Committee.

5.4. Distribution Following a Separation From Service

Upon his  Separation  from Service,  a  Participant  shall be entitled to a Plan
Benefit  equal  to his  Account.  In  the  event  of a  Termination  for  Cause,
notwithstanding the preceding sentence,  the Plan Administrator shall retain the
sole discretion to determine whether the interest on such  contributions will be
forfeited.  A Separation  from Service means the  Participant's  separation from
service  (within the meaning of IRC 409A and related  Treasury  regulations  and
Internal  Revenue  Service  guidance,  including  death or Disability)  from the
Employer,  and any  Related  Employer  as  defined  in IRC  414(b)  and  (c).  A
Separation  from  Service  shall  occur  as of the  date  that  a  Participant's
performance of bona-fide  services for the Employer and any Related  Employer is
permanently  reduced to a level less than  twenty  percent  (20%) of the average
level of services performed in the preceding thirty-six (36) month period.

In the event,  however, that the Participant is a Specified Employee at the time
of  his  Separation  from  Service,  the  Participant's  right  to  receive  any
distribution of the  Participant's  Account will be delayed until the earlier of
his death or the first day of the seventh month  following his  Separation  from
Service. A Specified Employee shall have the meaning given this term in IRC 409A
and the related  Treasury  regulations;  provided,  that as  permitted  in those
Treasury  regulations,  the  Specified  Employees  and  the  application  of the
six-month delay rule of IRC 409A(a)(2)(B)(i) to the Specified Employees shall be
determined  according to rules adopted and consistently applied by the Committee
in its sole discretion.

                                       8


5.5. Distribution Upon a Change in Control

If he so elects, a Participant  shall be entitled to a Plan Benefit equal to his
Account if he is serving as an  Executive  or Director  upon a Change in Control
prior to the Participant's Separation from Service.

5.6. Benefit Payment Elections and Subsequent Modifications Thereto

Other than for those circumstances that specifically  provide to the contrary, a
Plan Benefit  shall be paid in  accordance  with the  Participant's  most recent
valid Distribution  Election.  A Participant must irrevocably elect the time and
form for the payment of his Plan  Benefit by the later of (i)  December 31, 2008
or (ii) the date by which his first Deferral  Election Form must be submitted to
the Committee according to Section 3.1(b) or 3.1(c), as the case may be.

A  Participant  can elect  payment of his Plan  Benefit upon a Change in Control
prior to his Separation from Service. If he does not elect such a payment of his
Plan  Benefit or if a Change in Control  does not occur prior to his  Separation
from  Service,  a  Participant's  Plan  Benefit  shall be payable  only upon his
Separation  from Service as provided in Section 5.4. A Participant can elect the
following form of payment for his entire Plan Benefit:

          (i) A lump sum.

          (ii) Substantially equal annual payments for a period as designated by
          the  Participant  of five (5),  ten (10) or fifteen  (15)  years.  The
          amount of each annual  payment  shall be  determined  by dividing  the
          Participant's  Account on the Determination Date immediately preceding
          the month of the annual  payment by the number of years  remaining  in
          the designated installment period.

A  Participant  may  irrevocably  elect one form of payment  for his entire Plan
Benefit  upon a Change in  Control  prior to his  Separation  from  Service  and
another  form of payment for his entire Plan Benefit  upon his  Separation  from
Service. A Participant's election as to the form of payment for his Plan Benefit
upon his Separation from Service shall apply for the payment of his Plan Benefit
in the event of his death,  as provided  in Section  5.2. A  Participant's  Plan
Benefit shall be paid according to his most recent valid  Distribution  Election
submitted to the Committee. In the event that a Participant has not submitted to
the Committee a valid Distribution  Election,  his Plan Benefit shall be paid in
annual payments for ten (10) years.

A Participant may modify his Distribution Election as to the form of payment for
his Plan Benefit upon a Change in Control and/or his Separation from Service,
however any such modification

          (i) shall not be valid or effective if made within  twelve (12) months
          of the date of the  first  payment  under the  Participant's  previous
          valid Distribution Election;

          (ii)  may not add an  election  for or  remove  a  previously  elected
          payment upon a Change in Control under Section 5.5; and

          (iii) except in the case of the Participant's  Separation from Service
          due to  hisdeath  or  Disability,  the first  payment  for which  such
          election  is made must be  deferred  for a period of at least five (5)
          years from the date of the Participant's  previous valid  Distribution
          Election  for  that  payment.  For  the  purposes  of a  Participant's
          modification of his Distribution  Election,  a Participant's  right to
          receive  any annual  installment  payment  under this  Section  5.6 is
          treated  as the  right to  receive a single  payment  as  provided  in
          Treasury  regulation  1.409A-2(b)(2)(iii).  A  Participant's  modified
          Distribution  Election shall be made by submitting a Deferral Election
          Form to the Committee.

Notwithstanding  any  provision in the  immediately  preceding  paragraph to the
contrary,  the Committee may authorize changes to the times and forms of payment
permitted  under this Section 5.6 to the extent  consistent  with the transition
rules and during the  transition  relief period  provided under IRC 409A and the
related  guidance  issued in Treasury  regulations  and by the Internal  Revenue
Service.

                                       9


5.7. Withholding Payroll Taxes

The Employer shall withhold from payments made hereunder any taxes required to
be withheld from such payments under federal, state or local law. However, a
Beneficiary may elect not to have withholding for federal income tax pursuant to
Section 3405(a)(2) of Internal Revenue Code, or any successor provision thereto.

5.8. Commencement of Payments

Subject to the  provisions of Section 5.4 with respect to a Specified  Employee,
payment  of  a   Participant's   Plan   Benefit   shall   commence  as  soon  as
administratively   practicable   (determined  in  the  sole  discretion  of  the
Committee) but no later than sixty (60) days after

     (a)  the  date  selected  by the  Participant  in  his  most  recent  valid
     Distribution Election Form or

     (b) absent such a valid  Distribution  Election Form,  his Separation  from
     Service. All payments shall be made as of the first day of the month.

5.9. Payment to Guardian

If a Plan benefit is payable to a minor or a person declared incompetent or to a
person incapable of handling the disposition of his property,  the Committee may
direct  payment of such Plan Benefit to the guardian,  legal  representative  or
person  having the care and custody of such minor,  incompetent  or person.  The
Committee  may  require   proof  of   incompetency,   minority,   incapacity  or
guardianship  as it may  deem  appropriate  prior  to  distribution  of the Plan
benefit.  Such  distribution  shall completely  discharge the Committee from all
liability with respect to the benefit.

                                       10


                      ARTICLE VI - BENEFICIARY DESIGNATION

6.1. Beneficiary Designation

Each  Participant  shall have the right, at any time, to designate any person or
persons as his Beneficiary or Beneficiaries  (both primary as well as secondary)
to whom  benefits  under this Plan  shall be paid in the event of  Participant's
death prior to complete  distribution  of the benefits due under the Plan.  Each
beneficiary designation shall be in written form prescribed by the Committee and
will be effective  only when filed with the Committee  during the  Participant's
lifetime.

6.2. Amendments

Any Beneficiary  designation may be changed by a Participant without the consent
of any  designated  Beneficiary by the filing of a new  Beneficiary  designation
with the Committee. The filing of a new Beneficiary designation form will cancel
all Beneficiary  designations previously filed. If a Participant's  Compensation
is community property,  any Beneficiary  designation shall be valid or effective
only as permitted under applicable law.

6.3. No Beneficiary Designation

In the  absence  of a valid  or  effective  Beneficiary  designation,  or if all
designated  Beneficiaries  predecease  the  Participant or die prior to complete
distribution of the Participant's  benefits,  then the Participant's  designated
Beneficiary shall be deemed to be the Participant's estate.

6.4. Effect of Payment

The payment to the deemed  Beneficiary  shall  completely  discharge  Employer's
obligations under this Plan.

                          ARTICLE VII - ADMINISTRATION

7.1. Committee and Duties

This Plan shall be administered  by the Committee.  The Committee shall have the
authority  to make,  amend,  interpret,  and enforce all  appropriate  rules and
regulations  for the  administration  of this Plan and decide or resolve any and
all questions including interpretations of this Plan, as may arise in connection
with the Plan.

7.2. Agents

The Committee  may, from time to time,  employ other agents and delegate to them
such  administrative  duties as it sees fit,  and may from time to time  consult
with counsel who may be counsel to the Employer.

                                       11


7.3. Binding Effect of Decisions

The decision or action of the  Committee in respect of any question  arising out
of or in connection with the administration,  interpretation, and application of
the Plan and the rules and regulations  promulgated hereunder shall be final and
conclusive and binding upon all persons having any interest in the Plan.

7.4. Indemnity of Committee

The Employer  shall  indemnify  and hold  harmless the members of the  Committee
against any and all claims, loss, damage, expense, or liability arising from any
action or failure to act with respect to this Plan,  except in the case of gross
negligence or willful misconduct.

                         ARTICLE VIII - CLAIMS PROCEDURE

8.1. Claim

Any person claiming a benefit,  requesting an interpretation or ruling under the
Plan,  or  requesting  information  under the Plan shall  present the request in
writing to the  Committee,  which shall  respond in writing  within  thirty (30)
days.

8.2. Denial of Claim

If the claim or request is denied, the written notice of denial shall state:

     (a) The reasons for denial,  with specific reference to the Plan provisions
     on which the denial is based.

     (b) A description of any additional material or information required and an
     explanation of why it is necessary.

     (c) An explanation of the Plan's claim review procedure.

8.3. Review of Claim

Any person  whose claim or request is denied or who has not  received a response
within  thirty  (30) days may request  review by notice  given in writing to the
Committee.  The claim or request shall be reviewed by the Committee who may, but
shall not be required to, grant the claimant a hearing.  On review, the claimant
may have  representation,  examine  pertinent  documents,  and submit issues and
comments in writing.

8.4. Final Decision

The  decision on review  shall  normally be made within  sixty (60) days.  If an
extension  of time is required for a hearing or other  specified  circumstances,
the claimant  shall be notified  and the time limit shall be one hundred  twenty
(120) days. The decision shall be in writing and shall state the reasons and the
relevant  plan  provisions.  All decisions on review shall be final and bind all
parties concerned.

                                       12


                 ARTICLE IX - AMENDMENT AND TERMINATION OF PLAN

9.1. Amendment

The Board may at any time amend the Plan in whole or in part, provided, however,
that no amendment  shall be effective to decrease or restrict the amount accrued
to the date of Amendment in any Account or to change the Interest  Rate credited
to  amounts  already  held in an  Account  under the Plan.  Upon a change in the
Interest Rate,  thirty (30) days' advance  written notice shall be given to each
Participant  and any deferral  after the  effective  date of the change shall be
held in a separate Account which shall be credited with the new Interest Rate.

9.2. Right to Terminate

The Board may at any time partially or completely  terminate the Plan if, in its
judgment, the tax, accounting,  or other effects of the continuance of the Plan,
or  potential  payments  thereunder  would not be in the best  interests  of the
Employer.

     (a) Partial  Termination.  The Board may  partially  terminate  the Plan by
     instructing  the Committee not to accept any additional  Deferrals.  In the
     event of such a Partial Termination, the Plan shall continue to operate and
     be effective  with regard to Deferral  Elections  entered into prior to the
     effective date of such Partial Termination.

     (b)  Complete  Termination.  Subject  to the  provisions  of IRC  409A  and
     Treasury regulation 1.409A-3(j)(4)(ix),  the Board may completely terminate
     the Plan by instructing the Committee not to accept any additional Deferral
     Elections,  and by terminating all ongoing Deferral Elections. In the event
     of Complete  Termination,  the Plan shall cease to operate and the Employer
     shall  pay out to  each  Participant  (or  Participant's  Beneficiary)  his
     Account in a single lump sum as if that  Participant  had a Separation from
     Service on the first day of the second  twelve (12) month period that began
     with the date of the  Complete  Termination.  Only  Plan  Benefit  payments
     otherwise payable under Article V, absent the Complete  Termination,  shall
     be made during the first  twelve (12) month period  following  the Complete
     Termination.  Notwithstanding  any  provision in the Plan to the  contrary,
     interest earned on the unpaid balance in each  Participant's  Account shall
     be the  Interest  Rate in  effect  on the  Determination  Date  immediately
     preceding the effective date of the Complete Termination.

                            ARTICLE X - MISCELLANEOUS
10.1. Unfunded Plan

This Plan is intended to be an unfunded  plan  maintained  primarily  to provide
deferred   compensation   benefits  for  a  select  group  of   "management   or
highly-compensated employees" within the meaning of Sections 201, 301 and 401 of
the Employee  Retirement Income Security Act of 1974, as amended ("ERISA"),  and
therefore  to be exempt from the  provisions  of Parts 2, 3, and 4 of Title I of
ERISA.  Accordingly,  no  further  benefits  shall  accrue and the Plan shall be
terminated  according  to the  provisions  of Section  9.2(b) in the event it is
determined by a court of competent jurisdiction or by an opinion of counsel that
the Plan  constitutes  an employee  pension  benefit  plan within the meaning of
Section 3(2) of ERISA which is not so exempt.

                                       13


10.2. Unsecured General Creditor

In the event of Employer's  insolvency,  Participants  and their  Beneficiaries,
heirs, successors, and assigns shall have no legal or equitable rights, interest
or claims in any property or assets of Employer, nor shall they be Beneficiaries
of, or have any rights,  claims or  interests  in any life  insurance  policies,
annuity  contracts or the proceeds  therefrom  owned or which may be acquired by
Employer. In that event, any and all of Employer's assets and policies shall be,
and remain, the general, unpledged,  unrestricted assets of Employer. Employer's
obligation under the Plan shall be that of an unfunded and unsecured  promise of
Employer to pay money in the future.

10.3. Trust Fund

The Employer shall be responsible for the payment of all benefits provided under
the Plan. At its discretion,  the Employer may establish one (1) or more trusts,
with such  trustees as the Board may approve,  for the purpose of providing  for
the payment of such benefits.  Such trust or trusts maybe  irrevocable,  but the
assets  thereof shall be subject to the claims of the Employer's  creditors.  To
the extent any benefits  provided under the Plan are actually paid from any such
trust, the Employer shall have no further  obligation with respect thereto,  but
to the extent not so paid,  such benefits  shall remain the  obligation  of, and
shall be paid by, the Employer.

10.4. Nonassignability

Neither a  Participant  nor any other  person  shall have any right to  commute,
sell, assign,  transfer,  pledge,  anticipate,  mortgage or otherwise  encumber,
transfer,  hypothecate  or convey in advance of actual  receipt the amounts,  if
any, payable hereunder,  or any part thereof, which are, and all rights to which
are, expressly declared to be unassignable and  nontransferable.  No part of the
amounts  payable  shall,  prior to actual  payment,  be  subject  to  seizure or
sequestration  for the  payment of any  debts,  judgments,  alimony or  separate
maintenance  owed by a Participant or any other person,  nor be  transferable by
operation  of  law  in the  event  of a  Participant's  or  any  other  person's
bankruptcy or insolvency.

10.5. Not a Contract of Employment

The  terms and  conditions  of this Plan  shall  not be deemed to  constitute  a
contract  of  employment  between  the  Employer  and the  Participant,  and the
Participant  (or his  Beneficiary)  shall have no rights  against  the  Employer
except as may otherwise be specifically  provided herein.  Moreover,  nothing in
this Plan shall be deemed to give a Participant  the right to be retained in the
service  of the  Employer  or to  interfere  with the right of the  Employer  to
discipline or discharge him at any time.

                                       14


10.6. Protective Provisions

A  Participant  will  cooperate  with the  Employer  by  furnishing  any and all
information  requested by the Employer,  in order to  facilitate  the payment of
benefits hereunder, and by taking such physical examinations as the Employer may
deem  necessary  and  taking  such  other  actions  as may be  requested  by the
Employer.

10.7. Terms

Whenever  any words are used herein the  masculine,  they shall be  construed as
though  they were used in the  feminine  in all cases where they would so apply;
and wherever  any words are used herein in the  singular or in the plural,  they
shall be  construed as though they were used in the plural or the  singular,  as
the case may be, in all cases where they would so apply.

10.8. Captions

The captions of the  articles,  sections,  and  paragraphs  of this Plan are for
convenience  only and shall not control or affect the meaning or construction of
any of its provisions.

10.9. Governing Law

The provisions of this Plan shall be construed, interpreted, and governed in all
respects  in  accordance  with  applicable  federal  law and,  to the extent not
preempted  by such  federal  law,  in  accordance  with the laws of the State of
California.

10.10. Validity

In case any  provision  of this Plan shall be held  illegal  or invalid  for any
reason,  said  illegality  or invalidity  shall not affect the  remaining  parts
hereof,  but this Plan shall be  construed  and  enforced as if such illegal and
invalid provision had never been inserted herein.

10.11. Notice

Any notice or filing  required or permitted to be given to the  Committee  under
the  Plan  shall  be  sufficient  in  writing  and  hand  delivered,  or sent by
registered or certified mail, to any member of the Committee or the Secretary of
the  Employer.  Such notice shall be deemed given as of the date of delivery or,
if such  delivery is made by mail,  as of the date shown on the  postmark on the
receipt for registration or certification.

10.12. Successors

The  provisions of this Plan shall bind and inure to the benefit of the Employer
and its successors and assigns. The term successors as used herein shall include
any  corporate  or  other  business  entity  which  shall,  whether  by  merger,
consolidation,  purchase or otherwise  acquire all or  substantially  all of the
business and assets of TriCo Bancshares,  and successors of any such corporation
or other business entity.

Signatures on the following page

                                       15


                                 SIGNATURE PAGE

The 2005 Tri  Counties  Bank  Deferred  Compensation  Plan  for  Executives  and
Directors


                    TRICO BANCSHARES

                   By: ______________________________________

                   Title: ____________________________________

                   Date: ____________________________________


                   TRI COUNTIES BANK

                   By: ______________________________________

                   Title: ____________________________________

                   Date: ____________________________________

                                       16


Exhibit 99.2


                                TRICO BANCSHARES

                     SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

                  Amended and Restated Effective January 1,2009

                                TABLE OF CONTENTS
                                                                         Page
ARTICLE I             PURPOSE; EFFECTIVE DATE                              4

ARTICLE II            DEFINITIONS                                          4
                  2.1 Actuarial Equivalent                                 4
                  2.2 Board                                                4
                  2.3 Change in Control                                    4
                  2.4 Committee                                            5
                  2.5 Compensation                                         5
                  2.6 Disability                                           5
                  2.7 Early Retirement Date                                5
                  2.8 Employer                                             5
                  2.9 Final Average Compensation                           6
                  2.10 Normal Retirement Date                              6
                  2.11 Participant                                         6
                  2.12 Participation Agreement                             6
                  2.13 Retirement                                          6
                  2.14 Supplemental Retirement Benefit                     6
                  2.15 Target Retirement Percentage                        6
                  2.16 Years of Credited Service                           7
                  2.17 Applicable Percentage                               7
                  2.18 ESOP Offset                                         7
                  2.19 Estimated Primary Social Security Benefit           7
                  2.20 Termination                                         9

ARTICLE III           PARTICIPATION AND VESTING                            8
                  3.1 Eligibility and Participation                        8
                  3.2 Change in Employment Status                          8
                  3.3 Eligibility for Benefits                             8
                  3.4 Termination with Cause                               9

ARTICLE IV            SUPPLEMENTAL RETIREMENT BENEFITS                    10
                  4.1 Normal Retirement Benefit                           10
                  4.2 Early Retirement Benefit                            10
                  4.3 Early Termination Benefits                          10
                  4.4 Reduction for Early Commencement of Benefits        10
                  4.5 Form of Benefit Payment                             10
                  4.6 Commencement of Benefit Payments                    11
                  4.7 Withholding; Payroll Taxes                          11
                  4.8 Payment to Guardian                                 11

ARTICLE V             ADMINISTRATION                                      11
                  5.1 Committee; Duties                                   11
                  5.2 Agents                                              11
                  5.3 Binding Effect of Decisions                         11
                  5.4 Indemnity of Committee                              11

ARTICLE VI            BENEFICIARY DESIGNATION
                  6.1 Beneficiary Designation                             12
                  6.2 Amendments: Marital Status                          12
                  6.3 Default Beneficiary Designation                     12
                  6.4 Effect of Payment                                   12
                  6.5 Divorce/Beneficiary Designation                     12

ARTICLE VII           CLAIMS PROCEDURE
                  7.1 Claim                                               12
                  7.2 Denial of Claim                                     12
                  7.3 Review of Claim                                     13
                  7.4 Final Decision                                      13

ARTICLE VIII          TERMINATION, SUSPENSION OR AMENDMENT                13
                  8.1 Plan Termination                                    13

ARTICLE IX              MISCELLANEOUS
                  9.1 Unfunded Plan                                       14
                  9.2 Unsecured General Creditor                          14
                  9.3 Trust Fund                                          15
                  9.4 Nonassignability                                    15
                  9.5 Not a Contract of Employment                        15
                  9.6 Terms                                               15
                  9.7 Captions                                            15
                  9.8 Governing Law                                       15
                  9.9 Validity                                            15
                  9.10 Notice                                             15
                  9.11 Successors                                         16

EXHIBIT 1: Participation Agreement                                        17

EXHIBIT 2: Beneficiary Agreement                                          18



                                TRICO BANCSHARES

                     SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

                                    ARTICLE I

                             PURPOSE; EFFECTIVEDATE

The purpose of this  Supplemental  Executive  Retirement Plan (the "Plan") is to
provide  supplemental  retirement  benefits  for certain key  employees of TriCo
Bancshares,  Tri Counties  Bank,  and  subsidiaries  or affiliates  thereof (the
"Employer")  who are employed by the Employer on, or after  January I, 2004 . It
is intended that the Plan will aid in retaining and  attracting  individuals  of
exceptional  ability by providing them with these  benefits.  The Plan is hereby
amended and restated effective January 1, 2009.



                                   ARTICLE II

                                   DEFINITIONS

For the  purposes of this Plan,  the  following  terms  shall have the  meanings
indicated, unless the context clearly indicates otherwise:

2.1 Actuarial  Equivalent.
     "Actuarial Equivalent" means equivalence in value between two or more forms
     and/or  times of  payment  based on the fully  phased in (i.e.,  applicable
     percentage of 100%) Applicable Interest Rate and Applicable Mortality table
     defined  in IRS  Code  417(e)(3).  The  Applicable  Interest  Rate  will be
     determined by the rate for the month prior to the beginning of the calendar
     year in which a distribution occurs or would occur. The Applicable Interest
     Rate and  Applicable  Mortality  table are  selected  and  published by the
     Secretary of the Treasury.

2.2 Board.
    "Board" means the Board of Directors of TriCo Bancshares.

2.3 Change in Control.
     A "Change in Control" means the  occurrence of any of the following  events
     with  respect to Tri  Counties  Bank (the  "Bank")  or its  parent  holding
     company, TriCo Bancshares ("Bancorp"):

     (a) Merger: A merger into or  consolidation  with another  corporation,  or
     merger of another  corporation  into Bank or Bancorp,  and as a result less
     than  50%  of the  combined  voting  power  of  the  resulting  corporation
     immediately  after the merger or  consolidation is held by persons who were
     stockholders  of  Bank  or  Bancorp   immediately   before  the  merger  or
     consolidation;

     (b) Acquisition of Significant  Share Ownership:  One person,  or more than
     one person acting as a group,  acquires (or has acquired  during the twelve
     (12) month period ending on the date of the most recent acquisition by such
     person or persons)  ownership of stock  possessing  thirty percent (30%) or
     more of the  total  voting  power  of the  stock of Bank or  Bancorp  (this
     constitutes acquisition of "Effective Control"). No Change in Control shall
     occur if  additional  voting shares are acquired by a person or persons who
     possessed  Effective  Control prior to acquiring  additional  shares.  This
     subpart (b) shall not apply to  beneficial  ownership of voting shares held
     in a fiduciary  capacity by an entity of which Bank or Bancorp  directly or
     indirectly  beneficially  owns  50%  or  more  of  the  outstanding  voting
     securities,  or voting shares held by an employee  benefit plan  maintained
     for the benefit of the Bank's employees.

     (c) Change in Board Composition:  A majority of the members of the Board of
     Directors  of Bank or Bancorp is  replaced  during any  12-month  period by
     directors  whose  appointment  or election is not endorsed by a majority of
     the members of the Board of Directors of Bank or Bancorp before the date of
     the  appointment  or  election.  This  subparagraph  shall  only apply with
     respect to Bancorp if no other  corporation  is a majority  shareholder  of
     Bancorp.

     (d) A sale of substantially all of the assets of Bank or Bancorp.  A Change
     in Control  shall only  occur with  respect to Bancorp if Bancorp  (i) is a
     majority  shareholder  of the Bank;  (ii) is a majority  shareholder of any
     corporation  in a chain of  corporations  in which  each  corporation  is a
     majority  shareholder of another  corporation  in the chain,  ending in the
     Bank; or (iii) is otherwise a "Relevant  Corporation"  as that term is used
     and defined in Code section 409A.  For purposes of this  section,  majority
     shareholder  means a  shareholder  owning  more than 50% of the total  fair
     market value and total voting power of the Bank,  Bancorp, or a corporation
     in the chain referenced  above. No Change in Control shall occur unless the
     event  constitutes a "Change in the Ownership of a  Corporation," a "Change
     in the Effective  Control of a Corporation,"  or a "Change in the Ownership
     of a Substantial  Portion of the Assets of a Corporation," as defined under
     Code section 409A.

                                       4


2.4 Committee.
     "Committee"  means the Compensation and Benefits  Committee of the Board of
     Directors of TriCo Bancshares.

2.5 Compensation.
     "Compensation"  means the base salary and bonuses paid to a Participant and
     considered  to be "wages" for purposes of federal  income tax  withholding.
     Compensation  shall be calculated before reduction for any amounts deferred
     pursuant to any deferral arrangement by which the Participant can defer the
     current   receipt  of  income.   Compensation   does  not  include  expense
     reimbursements, or any form of non-cash compensation or benefits.

2.6 Disability.
     "Disabled"  means  that the  Participant  is

     (a) unable to engage in any
     substantial  gainful  activity  by  reason  of any  medically  determinable
     physical or mental  impairment  which can be expected to result in death or
     can be  expected  to last for a  continuous  period of not less than twelve
     months; or

     (b) by reason of any medically  determinable  physical or mental impairment
     which can be  expected  to result in death or can be expected to last for a
     continuous  period  of  not  less  than  twelve  months,  receiving  income
     replacement  benefits  for a period of not less than three  months under an
     accident and health plan  covering the Bank's  employees.  The Bank may, in
     its   discretion,   rely  on  a   determination   by  the  Social  Security
     Administration  or an insurance  carrier (if the definition of "disability"
     applied by the carrier is  consistent  with this  section)  in  determining
     whether a  Participant  is  Disabled,  and may require the  Participant  to
     submit  proof  of  such   determination.   The  term  "Disabled"  shall  be
     interpreted consistently with Code section 409A.

2.7 Early Retirement Date.
     "Early  Retirement  Date" means the date on which a Participant  terminates
     employment with the Employer,  if such  termination date occurs on or after
     such  Participant's  attainment  of age 55 and  completion  of fifteen (15)
     Years of Credited Service, but prior to his Normal Retirement Date.

2.8 Employer.
     "Employer" means TriCo Bancshares, Tri Counties Bank, and any affiliated or
     subsidiary  corporation  designated by the Board,  or any successors to the
     businesses thereof.

                                       5


2.9 Final Average Compensation.
     "Final Average  Compensation"  means the Participant's  Compensation during
     the 36 full consecutive  calendar months out of the last 60 calendar months
     of employment with the Employer during which the Participant's Compensation
     is the highest, divided by 36.

2.10 Normal Retirement Date.
     "Normal  Retirement  Date"  shall  mean the date on which  the  Participant
     terminates  employment with the Employer if such termination date occurs on
     or after the Participant's  attainment of age 62. "Normal  Retirement Date"
     shall  also mean the date on which the  Participant  terminates  employment
     pursuant to Article 3.3 (e) following a Change in Control.

2.11 Participant.
     "Participant"   means  any  individual  who  is  participating  in  or  has
     participated  in this Plan,  and who has not yet  received his full benefit
     hereunder, as provided in Article III.

2.12 Participation Agreement.
     "Participation  Agreement"  means the agreement  filed by a Participant and
     approved by the Board pursuant to Article III.

2.13 Retirement.
     "Retirement"  means a  Participant's  termination  from employment with the
     Employer at the  Participant's  Early Retirement Date or Normal  Retirement
     Date, as applicable.

2.14 Supplemental Retirement Benefit.
     "Supplemental  Retirement  Benefit"  means  the  benefit  determined  under
     Article IV of this Plan.

2.15 Target Retirement Percentage.
     For  Participants  who enter the Plan prior to January 1, 2009, the "Target
     Retirement  Percentage"  shall  equal  70%  multiplied  by  the  percentage
     presented in the table below:

     Full Years of Credited Service 1:    7%
     Full Years of Credited Service 2:   13%
     Full Years of Credited Service 3:   20%
     Full Years of Credited Service 4:   27%
     Full Years of Credited Service 5:   33%
     Full Years of Credited Service 6:   40%
     Full Years of Credited Service 7:   47%
     Full Years of Credited Service 8:   53%
     Full Years of Credited Service 9:   60%
     Full Years of Credited Service 10:  67%
     Full Years of Credited Service 11:  73%
     Full Years of Credited Service 12:  80%
     Full Years of Credited Service 13:  87%
     Full Years of Credited Service 14:  93%
     Full Years of Credited Service 15  100%

     For  Participants  who  enter the Plan on or after  January  1,  2009,  the
     "Target Retirement Percentage" shall accrue according to the table below.

      Full Years of Credited Service 1:   3%
      Full Years of Credited Service 2:   6%
      Full Years of Credited Service 3:   9%
      Full Years of Credited Service 4:  12%
      Full Years of Credited Service 5:  15%
      Full Years of Credited Service 6:  18%
      Full Years of Credited Service 7:  21%
      Full Years of Credited Service 8:  24%
      Full Years of Credited Service 9:  27%
      Full Years of Credited Service 10: 30%
      Full Years of Credited Service 11: 33%
      Full Years of Credited Service 12: 36%
      Full Years of Credited Service 13: 39%
      Full Years of Credited Service 14: 42%
      Full Years of Credited Service 15: 45%

                                       6


2.16 Years of Credited Service.
     "Years of Credited  Service" means the number of years of credited  vesting
     service   determined  in  accordance  with  the  provisions  of  the  TriCo
     Bancshares Employee Stock Ownership Plan, or any successor thereto, whether
     or not the  Participant is a participant in such plan, or designated at the
     discretion of the Committee.

2.17 Applicable Percentage.
     The  term  "Applicable  Percentage"  shall  mean  that  percentage  of  the
     Supplemental  Retirement  Benefits  that the  Participant  is  entitled  to
     receive  based  on  the   circumstances   surrounding  the  termination  of
     Employment.  The Applicable Percentage of Supplemental  Retirement Benefits
     shall accrue on the following basis:

     Full Years of Credited Service 1:    0%
     Full Years of Credited Service 2:    0%
     Full Years of Credited Service 3:    0%
     Full Years of Credited Service 4:    0%
     Full Years of Credited Service 5:   33%
     Full Years of Credited Service 6:   40%
     Full Years of Credited Service 7:   47%
     Full Years of Credited Service 8:   53%
     Full Years of Credited Service 9:   60%
     Full Years of Credited Service 10:  67%
     Full Years of Credited Service 11:  73%
     Full Years of Credited Service 12:  80%
     Full Years of Credited Service 13:  87%
     Full Years of Credited Service 14:  93%
     Full Years of Credited Service 15: 100%

2.18 ESOP Offset.
     On or after a Participant's  Normal  Retirement  Date, the term ESOP Offset
     will be defined as the Participant's  benefit in the form of an Actuarially
     Equivalent  monthly  single-life  annuity as defined in 2.1 under the TriCo
     Bancshares  Employee Stock  Ownership  Plan, or any successor plan thereto,
     using the most recent  valuation  date prior to  termination  of employment
     with the Employer.  Prior to Normal  Retirement Date, a Participant's  ESOP
     Offset  will be  defined  as the  Participant's  benefit  in the  form of a
     monthly single life annuity commencing at age 62 under the TriCo Bancshares
     Employee Stock Ownership  Plan, or any successor plan thereto,  assuming no
     interest  is  earned  by the  Participant's  account  from the most  recent
     valuation  date prior to date of  termination  of employment  with Employer
     until age 62. The ESOP  Offset  will be  adjusted  to include  ESOP  shares
     liquidated  or  distributed  to  a  Participant  prior  to  termination  of
     employment as part of an ESOP distribution or exercise of the Participant's
     diversification  rights under the ESOP.  Shares  distributed or diversified
     will be valued at the same stock price as shares remaining in the ESOP. For
     determining  the most  recent  valuation  date prior to  termination,  if a
     participant terminates on or after January 1 in a given year, the valuation
     date is December 31 preceding the year of termination.

2.19 Estimated Primary Social Security Benefit.
     The age 62 Social Security  Primary  Insurance Amount payable under the law
     in effect at the time of  termination  based on the  maximum pay and career
     length allowed and as determined by the Social Security Administration.

2.20 Termination.
     "Termination Of Employment"  means the Participant's  death,  retirement or
     other voluntary or involuntary termination of employment with the Employer.
     A Participant  will not be considered to have  experienced a Termination Of
     Employment if the Participant's employment is continued by a successor with
     or into which the Employer merges,  consolidates or transfers substantially
     all of the assets of the  Employer  and which  assumes  the Plan after such
     merger,  consolidation or transfer. A Termination Of Employment will not be
     deemed to have occurred  because a Participant is on an authorized leave of
     absence  if the  period of such leave does not exceed the longer of six (6)
     months  or as long as the  individual's  right  to  reemployment  with  the
     Employer is provided  either by statute or  contract.  If the period of the
     authorized  leave of  absence  exceeds  the longer of six (6) months or the
     period during which the  Participant's  right to  reemployment  is provided
     either by statute or contract,  the Participant shall be deemed to have had
     a Termination Of Employment on the first business day immediately following
     the end of the  longer  of the two  such  periods.  A  Participant  will be
     considered to have experienced a Termination Of Employment, notwithstanding
     the  fact  that the  Participant  continues  to  perform  services  for the
     Employer  on a  reduced-time  basis,  provided  that the  Employer  and the
     Participant reasonably anticipate that the level of bona fide services that
     the  Participant  will  perform  after a  specified  date will  permanently
     decrease to less than fifty percent (50%) of the average level of bona fide
     services   provided  by  the  Participant  in  the  immediately   preceding
     thirty-six (36) months.

                                       7


                                   ARTICLE III

                            PARTICIPATION AND VESTING

3.1  Eligibility and Participation

     (a) Eligibility. Eligibility to participate in the Plan is limited to those
     employees of the Employer  that are  designated,  from time to time, by the
     Board.

     (b)  Participation.  An  employee's  participation  in the  Plan  shall  be
     effective upon  notification of such person by the Committee of eligibility
     to participate,  completion of a  Participation  Agreement by such person ,
     and acceptance of the Participation  Agreement by the Committee.  Except as
     modified by paragraph 3.2 below,  participation  in the Plan shall continue
     until such time as the Participant  terminates employment with the Employer
     and as long thereafter as the  Participant is eligible to receive  benefits
     under this Plan.

3.2 Change in Employment Status.
     If the Board determines that a Participant's  employment  performance is no
     longer at a level which deserves reward through participation in this Plan,
     but does not  terminate  the  Participant's  employment  with the Employer,
     participation herein and eligibility to receive benefits hereunder shall be
     limited  to  the  Participant's  vested  interest  in  such  benefits,   as
     determined by the Applicable  Percentage,  as of the date designated by the
     Board. In such an event, the benefits  payable to the Participant  shall be
     based  solely  on  the   Participant's   Years  of  Credited   Service  and
     Compensation as of the date designated by the Board.

3.3  Eligibility for Benefits.

     (a) Retirement on Normal  Retirement Date: The Applicable  Percentage for a
     Participant  whose employment with the Employer  terminates on or after the
     Normal Retirement Date shall be 100%.

     (b)  Retirement  on or  after  Early  Retirement  Date  but  before  Normal
     Retirement  Date:  The  Participant  may  elect to  retire  on a date  that
     constitutes an Early Retirement Date provided the Applicable  Percentage is
     100% as of the effective date of Retirement.

     (c)  Termination  Without  Cause  (termination  other  than Early or Normal
     retirement,  death,  Disability,  Voluntary Termination or Termination with
     Cause as defined in 3.4). If the Participant's  employment is terminated by
     the Employer without cause, the Participant's  Applicable  Percentage shall
     be 100% and the Participant  shall be eligible to receive benefits pursuant
     to the Target  Retirement  Percentage  accrued as of the effective  date of
     Termination.

     (d) Voluntary  Termination.  If the Employee's  employment is terminated by
     voluntary  resignation other than for Early Retirement,  the Employee shall
     be entitled to be paid the following benefits:

          (i) If the Applicable  Percentage is one hundred  percent (100%) as of
          the date of termination,  the Participant shall be entitled to be paid
          the  Target  Retirement  Percentage  of  the  Supplemental  Retirement
          Benefits.

          (ii) If the  Applicable  Percentage  is less than one hundred  percent
          (100%) as of the date of termination,  the  Participant  shall forfeit
          any and all rights and  benefits  the  Participant  may have under the
          terms of this  Agreement and shall have no right to be paid any of the
          amounts which would otherwise be due or paid to the Participant by the
          Employer pursuant to the terms of this Agreement.

     (e) Termination  Following a Change in Control:  In the event a Participant
     is terminated  pursuant to a Change in Control,  the Applicable  Percentage
     shall be 100%. A  termination  shall be deemed to be in  connection  with a
     Change in Control if, within two (2) years  following  the  occurrence of a
     Change in  Control:  The  Participant's  employment  with the  Employer  is
     terminated  by either the Employee or the Employer  other than because of a
     Termination for Cause, as defined in 3.4 .

     (f) Termination  Following the Determination of Disability:  The Applicable
     Percentage for a Participant whose employment with the Employer  terminates
     because of Disability shall be 100%.

                                       8


3.4 Termination with Cause.
     If a Participant is terminated for any reason  identified in (a) (b) (c) or
     (d) below,  the Participant  shall forfeit all benefits  payable under this
     Plan.

     (a) Gross negligence or gross neglect

     (b) The  commission  of a felony,  misdemeanor,  or any other act involving
     moral  turpitude,  fraud, or dishonesty which has a material adverse impact
     on the Bank

     (c) The willful  and  intentional  disclosure,  without  authority,  of any
     secret or confidential information concerning the Bank which has a material
     adverse impact on the Bank.

     (d) The  willful and  intentional  violation  which has a material  adverse
     effect upon the Bank of the rules or regulations  of any regulatory  agency
     or government authority having jurisdiction over the Bank.

                                       9


                                   ARTICLE IV

                        SUPPLEMENTAL RETIREMENT BENEFITS

4.1  Normal Retirement Benefit.

     (a) For Participants of the Plan prior to January,  1, 2009,  commencing on
     the first day of the month  coinciding or following a Participant's  Normal
     Retirement  Date,  the  Employer  shall  pay to the  Participant  a monthly
     Supplemental  Retirement Benefit equal to the Target Retirement  Percentage
     multiplied by the Participant's  Final Average  Compensation,  less the sum
     of:

          1) 100% of the Participant's monthly Estimated Primary Social Security
          Benefit; and,

          2) The Participant's ESOP Offset.

     (b) For  participants  who enter  the Plan on or after  January,  1,  2009,
     commencing on the first day of the month following a  Participant's  Normal
     Retirement  Date,  the  Employer  shall  pay to the  Participant  a monthly
     Supplemental  Retirement Benefit equal to the Target Retirement  Percentage
     multiplied by the Participant's Final Average Compensation.

4.2 Early Retirement Benefit.
     If a Participant  retires at an Early  Retirement  Date, the Employer shall
     pay to the Participant, commencing on the first day of the month coinciding
     or  following a  Participant's  Early  Retirement  Date,  the  Supplemental
     Retirement Benefit as determined under Sections 4.1(a) or 4.1(b) and 4.4.

4.3 Early Termination Benefit.
     If a Participant  terminates  employment  with the Employer  prior to Early
     Retirement,  the Employer shall pay to the  Participant,  commencing on the
     first  day of the  month  coinciding  or  following  the date on which  the
     Participant  attains  age  55,  the  Supplemental   Retirement  Benefit  as
     determined under Sections 4.1(a) or 4.1(b) and 4.4.


4.4 Reduction for Early Commencement of Benefits.
     If a Participant receives a Supplemental Retirement Benefit under this Plan
     before the Participant's  Normal Retirement Date, the monthly  Supplemental
     Retirement  Benefit as determined under Section 4.1 shall be reduced by .5%
     per month for each month by which the benefit  commencement  date  precedes
     the  Participant's  age 62; In no event shall the  commencement of benefits
     precede the Participant's 55th birthday. The percentages stated above shall
     be prorated for partial months.

4.5 Form of Benefit Payment.
     The  Supplemental  Retirement  Benefit  shall  be  paid in the  basic  form
     provided below, unless, at the Participant's request, the Committee, in its
     sole  discretion,  selects an  alternative  form. Any form requested by the
     Participant shall be considered by the Committee, but shall not be binding.
     Any alternative form shall be the Actuarial Equivalent of the basic form of
     benefit  payments.  The  basic  and  alternative  forms of  payment  are as
     follows:

     (a) Basic Form of Benefit  Payments.  Monthly  single life  annuity for the
     participant's life.

     (b) Alternative Forms of Benefit Payment.

          (i) A joint and survivor  annuity with an Actuarial  Equivalent  Value
          equal to the Basic Form of Benefit  Payments  described in 4.5(a) with
          payment  continued  to the  survivor  in the same amount as the amount
          paid to the Participant.

          (ii) A joint and survivor  annuity with an Actuarial  Equivalent Value
          equal to the Basic Form of Benefit  Payments  described in 4.5(a) with
          one-half of the payment continued to the survivor.

          (iii) Any other Actuarial  Equivalent life annuity method which is not
          a change in payment  form under Code  section  409A and as approved by
          the Board.

                                       10


4.6 Commencement of Benefit Payments.
     Notwithstanding  any  other  provision  of the  Plan  to the  contrary,  no
     benefits shall be paid until six (6) months after Termination of Employment
     for any individual  participating in the Plan on December 31, 2008 who is a
     Specified Employee at the time his or her employment  terminates (or at the
     time  benefit  payments  are  otherwise  scheduled  to  commence).  For all
     individuals  who  become  Participants  on or after  January  1,  2009,  no
     benefits  shall be paid under  this  Article 4 until  (six) 6 months  after
     Termination  of  Employment.  In the  event  that the six (6)  month  delay
     applies to a Participant, payments that would have been made during the six
     (6) month  period,  but for this section 4.6, will be paid on the first day
     of the seventh  (7th) month  following  the  Participant's  Termination  of
     Employment  and will accrue at an interest  rate equal to the first segment
     rate of the applicable  interest rate under section 2.1.  Regular  payments
     will continue monthly thereafter.

     "Specified Employee" - if an Executive is a Key Employee (defined below) of
     the Company or any entity that is  aggregated  with the Company  under Code
     section  414(b) or (c) as of December 31st of any year (the  "Determination
     Date"),  and the Company (or any entity that is aggregated with the Company
     under Code section  414(b) or (c)) has stock that is publicly  traded on an
     established  securities  market or otherwise,  then the Executive  shall be
     treated as a Specified Employee during the 12-month period beginning on the
     April 1st following the Determination  Date. An Executive is a Key Employee
     as of a Determination  Date if the Executive meets the requirements of Code
     section  416(i)(1)(A)(i),  (ii), or (iii)  (applied in accordance  with the
     regulations  thereunder  and  disregarding  section  416(i)(5)) at any time
     during the twelve months preceding the Determination Date.

4.7 Withholding; Payroll Taxes.
     The Employer shall withhold from payments made hereunder any taxes required
     to be withheld from a Participant's pay under federal,  state or local law.
     However, a Beneficiary may elect not to have withholding for federal income
     tax purposes  pursuant to Section 3405(a) (2) of the Internal Revenue Code,
     or any successor provision thereto.

4.8 Payment to Guardian.
     If a Plan benefit is payable to a minor or a person declared incompetent or
     to a person  incapable of handling the  disposition  of his  property,  the
     Committee may direct  payment of such Plan benefit to the  guardian,  legal
     representative  or such  person  having the care and custody of such minor,
     incompetent  or person . The Committee  may require proof of  incompetency,
     minority,  incapacity or guardianship as it may deem  appropriate  prior to
     distribution  of the  Plan  benefit.  Such  distribution  shall  completely
     discharge the Committee and the Employer from all liability with respect to
     such benefit.


                                    ARTICLE V

                                 ADMINISTRATION

5.1 Committee; Duties.
     This Plan shall be administered by the Committee.  The Committee shall have
     the authority to make, amend, interpret,  and enforce all appropriate rules
     and regulations for the  administration  of this Plan and decide or resolve
     any and all questions including  interpretations of this Plan, as may arise
     in connection with the Plan.

5.2 Agents.
     In the  administration  of this Plan, the Committee may, from time to time,
     employ  agents and delegate to them such  administrative  duties as it sees
     fit,  and may from time to time  consult with counsel who may be counsel to
     the Employer.

5.3 Binding Effect of Decisions.
     The decision or action of the Committee in respect of any question  arising
     out  of  or in  connection  with  the  administration,  interpretation  and
     application of the Plan and the rules and regulations promulgated hereunder
     shall be final and  conclusive  and  binding  upon all  persons  having any
     interest in the Plan.

5.4 Indemnity of Committee.
     The Employer shall indemnify and hold harmless the members of the Committee
     against any and all claims,  loss,  damage,  expense,  or liability arising
     from any action or failure to act with respect to this Plan,  except in the
     case of gross negligence or willful misconduct.

                                       11


                                   ARTICLE VI

                             BENEFICIARY DESIGNATION

6.1 Beneficiary Designation.
     Each Participant shall have the right, at any time, to designate any person
     or persons as his  Beneficiary  or  Beneficiaries  (both primary as well as
     secondary) to whom  benefits  under this Plan shall be paid in the event of
     his death prior to complete distribution to the Participant of the benefits
     due under the Plan. Each Beneficiary designation shall be in a written form
     prescribed by the Committee, and will be effective only when filed with the
     Committee during the Participant's lifetime.

6.2 Amendments:
     Marital Status. Any Beneficiary designation may be changed by a Participant
     without the consent of any  designated  Beneficiary  by the filing of a new
     Beneficiary designation with the Committee. The filing of a new Beneficiary
     designation form will cancel all Beneficiary designations previously filed.
     If a  Participant's  Compensation  is community  property,  any Beneficiary
     designation  shall be valid or effective only as permitted under applicable
     law.

6.3 Default Beneficiary Designation.
     If a Participant  fails to designate a  Beneficiary,  or if all  designated
     Beneficiaries   predecease  the   Participant  or  die  prior  to  complete
     distribution  of  the  Participant's   benefits,   then  the  Participant's
     designated  Beneficiary  shall be deemed to be his or her surviving spouse.
     If the Participant has no surviving spouse,  any Plan benefits remaining to
     be paid to a Beneficiary shall be payable to the Participant's children. If
     the Participant has no surviving  children,  any Plan benefits remaining to
     be paid to a Beneficiary shall be payable to the Participant's estate.

6.4 Effect of Payment.
     The  payment to the  deemed  Beneficiary  shall  completely  discharge  the
     Employer's obligations under this Plan.

6.5 Divorce/Beneficiary Designation.
     A beneficiary  designation  naming a  Participant's  spouse as  Beneficiary
     shall be deemed revoked upon the Participant's  subsequent divorce from the
     spouse.

                                   ARTICLE VII

                                CLAIMS PROCEDURE

7.1 Claim.
     Any person claiming a benefit, requesting an interpretation or ruling under
     the Plan,  or  requesting  information  under the Plan  shall  present  the
     request in writing.

     Following receipt of a claim for benefits, the Committee shall consider the
     claim,  and shall  provide the  Claimant  with notice of its  determination
     regarding  the claim  within a reasonable  period of time,  but in no event
     later than thirty (90) days following receipt, unless special circumstances
     require  an  extension  of time to process  the  claim.  In such a case the
     Committee may have up to an additional ninety (90) days from the end of the
     initial  ninety (90) day period in which to make its  determination  on the
     claim. If such an extension is required,  written notice shall be furnished
     to the  Claimant.  The  notice of  extension  shall  indicate  the  special
     circumstances  requiring  the extension and the date by which the Committee
     expects to render a determination on the claim.

7.2 Denial of Claim.

     If the claim or request  is denied,  the  written  notice of denial  should
     state:

     (a) The reason for denial,  with specific  reference to the Plan provisions
     on which the denial is based.

     (b) A description of any additional material or information required and an
     explanation of why it is necessary.

     (c) An explanation of the Plan's claim review procedure.

                                       12


7.3 Review of Claim.
     Any  person  whose  claim or  request  is denied or who has not  received a
     response  within 90 days may  request a review by filing a written  request
     for review with the Committee no later than sixty (60) days after receiving
     written notice of the denial. The claim or request shall be reviewed by the
     Committee  who may,  but shall not be  required  to,  grant the  claimant a
     hearing. On review, the claimant may have representation, examine pertinent
     documents, and submit issues and comments in writing.

7.4 Final Decision.
     The  decision  on review  shall  normally  be made  within  60 days.  If an
     extension of time is required for a hearing or other special circumstances,
     the claimant  shall be notified  and the time limit shall be 120 days.  The
     decision  shall be in writing and shall  state the reason and the  relevant
     Plan  provisions.  All  decisions  on  review  shall be final  and bind all
     parties concerned.

                                  ARTICLE VIII

                      TERMINATION, SUSPENSION OR AMENDMENT

8.1 Plan Termination.
     The Employer,  by action of the Board or its designee,  can terminate  this
     Plan in whole or in part at any  time  and for any  reason  in its sole and
     absolute discretion, in which event all Benefit accruals under the Plan for
     affected Participants shall cease, and all Participants'  Benefits shall be
     paid at the time and in the manner  otherwise  specified  in this Plan.  In
     addition,  the Employer  anticipates  that it will  continue to sponsor the
     Plan for an indefinite  period of time, there is no guarantee that the Plan
     will  be  continued.  Accordingly,  the  Employer  reserves  the  right  to
     discontinue  its  sponsorship  of the Plan or to  terminate  the Plan  with
     respect to its  Employees at any time by action of its Board of  Directors.
     Upon the  termination  of the Plan, the affected  Participants  shall cease
     participation  in the Plan and  shall  not  accrue  any  further  benefits.
     Notwithstanding the foregoing, the Employer's discretionary  termination of
     this Plan shall not result in the acceleration of payment to a Participant,
     except where the right to payment arises in connection  with the Employer's
     discretionary   termination   of  the  Plan  under  one  of  the  following
     circumstances:

     (a) Within twelve (12) months following a corporate dissolution taxed under
     Code section 331, or with the  approval of a bankruptcy  court  pursuant to
     section  503(b)(1)(A) of Title 11 of the United States Code,  provided that
     an  affected  Participant's  Benefits  under the Plan are  included in such
     Participant's income on the latest of:

          (i) The calendar year in which the Plan terminates;

          (ii) The calendar  year in which the amount is no longer  subject to a
          substantial risk of forfeiture; or

          (iii) The first calendar year in which the payment is administratively
          practicable;

     (b)  Within the  thirty  (30) days  preceding  or the  twelve  (12)  months
     following a Change In Control,  provided that all arrangements sponsored by
     the Employer,  that would be  aggregated  with any  terminated  arrangement
     under   Treasury   regulations   section   1.409A-1(c)   if  a  Participant
     participated  in all of  the  arrangements,  are  terminated,  such  that a
     Participant  and  all  other  participants  under   substantially   similar
     arrangements  are required to receive all amounts of compensation  deferred
     under the terminated  arrangements within twelve (12) months of the date of
     termination of the arrangements;

     (c) Where:

          (i) The  termination  and  liquidation  does not occur  proximate to a
          downturn in the financial health of the Employer;

          (ii)  The  Employer  terminates  all  arrangements  sponsored  by  the
          Employer  that would be  aggregated  with any  terminated  arrangement
          under  Treasury  regulations  section  1.409A-1(c)  if  a  Participant
          participated in all of the arrangements;

          (iii)  No  payments  are  made  within   twelve  (12)  months  of  the
          termination,  other than  payments that would have been payable if the
          termination had not occurred;

          (iv) All  payments  are made  within  twenty-four  (24)  months of the
          termination; and

          (v) The Employer does not adopt a new deferred  compensation plan that
          would be aggregated  with any  terminated  arrangement  under Treasury
          regulations section 1.409A-1(c), if a Participant participated in both
          arrangements,  within three (3) years  following the date the Employer
          takes all necessary action to irrevocably  terminate and liquidate the
          Plan; or

     (d) Upon such  other  events  and  conditions  as the  Commissioner  of the
     Internal  Revenue  Service may prescribe in generally  applicable  guidance
     published in the Internal Revenue Bulletin

8.2 Amendment.
     The  Board  may  amend  this  Plan at any time or from  time to  time.  Any
     amendment may provide different  benefits or amounts of benefits from those
     herein set forth.  However,  no such amendment shall  adversely  affect the
     benefits of  Participants  which have  accrued  prior to such  action,  the
     benefits of any Participant who has previously  retired, or the benefits of
     any Beneficiary of a Participant who has previously died.  Furthermore,  no
     amendment shall alter the  applicability  of the percentage in Section 2.17
     with  respect  to a  Participant's  accrued  benefit  at the  time  of such
     amendment.

                                       13


                                   ARTICLE IX

                                  MISCELLANEOUS

9.1 Unfunded Plan.
     This Plan is  intended  to be an  unfunded  plan  maintained  primarily  to
     provide deferred compensation benefits for a select group of "management or
     highly compensated  employees" within the meaning of Sections 201, 301, and
     401 of the Employee  Retirement  Income  Security  Act of 1974,  as amended
     ("ERISA"),  and  therefore to be exempt from the  provisions of Parts 2, 3,
     and 4 of Title I ERlSA Accordingly, the Plan shall terminate and no further
     benefits  shall be paid  hereunder in the event it is determined by a court
     of  competent  jurisdiction  or by an  opinion  of  counsel  that  the Plan
     constitutes an employee  pension benefit plan within the meaning of Section
     3(2) of ERlSA which is not so exempt.

9.2 Unsecured General Creditor.
     Participants and their Beneficiaries,  heirs, successors, and assigns shall
     have no legal or  equitable  rights,  interest or claims in any property or
     assets of the  Employer,  nor shall they be  Beneficiaries  of, or have any
     rights,  claims  or  interests  in any  life  insurance  policies,  annuity
     contracts,  or the proceeds therefrom owned or which may be acquired by the
     Employer. Except as may be provided in Section 8.3, such policies,  annuity
     contracts or other assets of the Employer shall not be held under any trust
     for the benefit of Participants, their Beneficiaries,  heirs, successors or
     assigns,  or held in any way as collateral  security for the  fulfilling of
     the  obligations  of the  Employer  under  this  Plan.  Any  and all of the
     Employer's  assets  and  policies  shall  be,  and  remain,   the  general,
     unpledged,  unrestricted assets of the Employer.  The Employer's obligation
     under the Plan shall be that of an unfunded  and  unsecured  promise to pay
     money in the future.

                                       14


9.3 Trust Fund.
     The Employer shall be responsible for the payment of all benefits  provided
     under the Plan. At its  discretion,  the Employer may establish one or more
     trusts,  with such  trustee as the Board may  approve,  for the  purpose of
     providing  for the  payment of such  benefits.  Such trust or trusts may be
     irrevocable,  but the assets  thereof shall be subject to the claims of the
     Employer's  creditors.  To the extent any benefits  provided under the Plan
     are actually paid from any such trust,  the Employer  shall have no further
     obligation  with  respect  thereto,  but to the  extent  not so paid,  such
     benefits  shall  remain  the  obligation  of,  and  shall be paid  by,  the
     Employer.

9.4 Nonassignabiliy.
     Neither a Participant nor any other person shall have any right to commute,
     sell, assign, transfer, pledge, anticipate, mortgage or otherwise encumber,
     transfer,  hypothecate  or convey in advance of actual receipt the amounts,
     if any, payable hereunder,  or any part thereof,  which are, and all rights
     to which are, expressly declared to be unassignable and nontransferable. No
     part of the Amount payable shall,  prior to actual  payment,  be subject to
     seizure or sequestration for the payment of any debts,  judgments,  alimony
     or separate  maintenance owed by a Participant or any other person,  nor be
     transferable  by  operation of law in the event of a  Participant's  or any
     other person's bankruptcy or insolvency.

9.5 Not a Contract of Employment.
     The terms and  conditions  of this Plan shall not be deemed to constitute a
     contract of employment  between the Employer and the  Participant,  and the
     Participant (or his Beneficiary)  shall have no rights against the Employer
     except as may otherwise be specifically provided herein. Moreover,  nothing
     in this Plan shall be deemed to give a Participant the right to be retained
     in the  service  of the  Employer  or to  interfere  with the  right of the
     Employer to discipline or discharge him at any time.

9.6 Terms.
     Whenever  any  words  are  used  herein  in the  masculine,  they  shall be
     construed  as though they were used in the feminine in all cases where they
     would so apply;  and  wherever any words are used herein in the singular or
     in the  plural,  they shall be  construed  as though  they were used in the
     plural or  singular,  as the case may be, in all cases  where they would so
     apply.

9.7 Captions.
     The captions of the articles, sections, and paragraphs of this Plan are for
     convenience   only  and  shall  not   control  or  affect  the  meaning  or
     construction of any of its provisions.

9.8 Governing Law.
     The provisions of this Plan shall be construed,  interpreted,  and governed
     in all  respects  in  accordance  with  applicable  federal law and, to the
     extent not  preempted by such federal law, in  accordance  with the laws of
     the State of California.

9.9 Validity.
     If any  provision  of this Plan shall be held  illegal  or invalid  for any
     reason, the remaining provisions shall nevertheless  continue in full force
     and effect without being impaired or invalidated in any way.

9.10 Notice.
     Any notice or filing  required or  permitted  to be given to the  Committee
     under the Plan shall be sufficient in writing and hand  delivered,  or sent
     by registered or certified mail, to any member of the Committee,  or to the
     Employer's  statutory  agent.  Such notice  shall be deemed given as of the
     date of delivery  or, if delivery is made by mail,  as of the date shown on
     the postmark on the receipt for registration or certification.

                                       15


9.11 Successors.
     The  provisions  of this Plan  shall  bind and inure to the  benefit of the
     Employer and its successors and assigns. The term successors as used herein
     shall include any corporate or other business  entity which shall,  whether
     by  merger,   consolidation,   purchase   or   otherwise   acquire  all  or
     substantially  all  of  the  business  and  assets  of  the  Employer,  and
     successors of any such corporation or other business entity.

TRICO BANCSHARES


By:      _________________________
         William Casey, Chairman


By:      _________________________
         Secretary

                                       16


Exhibit 1

Participation Agreement
The TriCo Bancshares 2009 Supplemental Executive Retirement Plan

Participant:   (INSERT NAME)___________________

Eligibility Date: (INSERT DATE OF ELIGIBILITY)______

The above named  Participant is authorized to receive  benefits  pursuant to the
2009 TriCo Bancshares  Supplemental  Executive  Retirement Plan. Benefit accrual
shall commence as of the Eligibility Date listed above.

Waiver and Release of Claims
In  granting  this  benefit  to  the  Participant,   TriCo  Bancshares  and  the
Participant  acknowledge that any benefits earned in the 1987 Plan are frozen at
the level accrued as of December 31, 2003. The parties mutually agree that these
benefits will be provided by the 2009 TriCo  Bancshares  Supplemental  Executive
Retirement  Plan which  replaces  any  benefits  the  Participant  may have been
eligible to receive  pursuant to the Tri Counties  Bank  Supplemental  Executive
Retirement Plan effective September 1, 1987. The parties mutually agree that any
obligations  due the  Participant  under  the  terms of the 1987  Plan are fully
satisfied by the benefits  provided by the TriCo  Bancshares  2009  Supplemental
Executive Retirement Plan.

Participant:       __________________________   __________________________
                   (Signature)                  (Print Name)

TriCo Bancshares:  __________________________
                  (authorized executive)


Date:  ___________________

                                       17


EXHIBIT 2

                          Beneficiary Designation Form

        The 2009 TriCo Bancshares Supplemental Executive Retirement Plan

I. PRIMARY DESIGNATION
   (You  may  refer  to  the  beneficiary  designation  information  prior  to
   completion of this form.)

A. Person(s) as a Primary Designation:
   (please indicate the percentage for each beneficiary.)


Name______________________________  Relationship ____________ / ________%

Address:________________________________________________________________
                  (Street)        City)          (State)         (Zip)

Name______________________________  Relationship ____________ / ________%

Address:________________________________________________________________
                  (Street)       (City)          (State)         (Zip)

Name______________________________  Relationship ____________ / ________%

Address:________________________________________________________________
                  (Street)       (City)          (State)         (Zip)

B. Estate as a Primary Designation:

   My Primary Beneficiary is The Estate of ____________________________.

C. Trust as a Primary Designation:

   Name of the Trust: __________________________________________________

   Execution Date of the Trust: ______ / ______ / ___________

   Name of the Trustee: ________________________________________________

   Beneficiary(ies)  of the Trust  (please  indicate the  percentage  for each
   beneficiary):

       ------------------------------------------------------------------

       ------------------------------------------------------------------


   Is this an Irrevocable Life Insurance Trust? Yes _____ No _____
   (If yes and this designation is for a Split Dollar agreement, an Assignment
    of Rights form should be completed.)

                                       18


II.SECONDARY (CONTINGENT) DESIGNATION

A. Person(s) as a Secondary  (Contingent)  Designation:  (please  indicate the
   percentage for each beneficiary.)

Name______________________________  Relationship ____________ / ________%

Address:________________________________________________________________
                  (Street)       (City)          (State)         (Zip)

Name______________________________  Relationship ____________ / ________%

Address:________________________________________________________________
                  (Street)       (City)          (State)         (Zip)

Name______________________________  Relationship ____________ / ________%

Address:________________________________________________________________
                  (Street)       (City)          (State)         (Zip)


B. Estate as a Secondary (Contingent) Designation:

My Secondary Beneficiary is The Estate of _____________________________.

C. Trust as a Secondary (Contingent) Designation:

   Name of the Trust: __________________________________________________

   Execution Date of the Trust: ______ / ______ / ___________

   Name of the Trustee: ________________________________________________

   Beneficiary(ies) of the Trust (please indicate the percentage for each
   beneficiary):

       ------------------------------------------------------------------

       ------------------------------------------------------------------

All sums payable under this Agreement by reason of my death shall be paid to the
Primary  Beneficiary(ies),  if  he  or  she  survives  me,  and  if  no  Primary
Beneficiary(ies)   shall  survive  me,  then  to  the   Secondary   (Contingent)
Beneficiary(ies).  This  beneficiary  designation is valid until the participant
notifies the bank in writing.




_________________________                 ____________________
Participant's Signature                   Date