EXHIBIT 10.3

                        INCENTIVE STOCK OPTION AGREEMENT
                                KIRBY CORPORATION
                          2005 STOCK AND INCENTIVE PLAN


     An  Incentive Stock Option for a total of _________ shares of common stock,
par  value  $0.10  per  share,  of  Kirby  Corporation (the "Company") is hereby
granted  pursuant  to  the  2005  Stock  and  Incentive Plan of the Company (the
"Plan")  to




(the  "Optionee").  This  Option  is in all respects subject to the definitions,
terms,  conditions  and limitations contained in the Plan, which is incorporated
herein  by  reference.

     1.   Exercise  Price.  The  exercise  price  is  $_________ for each share,
          ---------------
being  ____%  of the Fair Market Value of the common stock on the Date of Grant.

     2.   Date  of  Grant.  The  Date  of  Grant of this Option is ____________,
          ---------------
_____.

     3.   Exercise  of  Option.  This  Option  shall  be exercisable as follows:
          --------------------

          (a)  Date  of Exercise.  This Option shall become exercisable in whole
               -----------------
or  in  part  with  respect  to  the  following  numbers  of Shares on the dates
indicated:

               (i)    _____  Shares  on  ____________,  _____;

               (ii)   _____  Shares  on  ____________,  _____;  and

               (iii)  _____  Shares  on  ____________,  _____;

provided  that this Option shall become immediately exercisable in full upon the
occurrence  of  a  Change  in  Control.

          (b)  Term  of  Option.  This  Option  may  not  be exercised after the
               ----------------
expiration  of  _______  (__)  years  from  the  Date of Grant and is subject to
earlier  termination  as  provided  in  the  Plan.  This Option may be exercised
during  such time only in accordance with the Plan and the terms of this Option.

          (c)  Method  of  Exercise.  This  Option  shall  be  exercisable  by a
               --------------------
written  notice  delivered  to  the  Company  which  shall:

               (i)  state  the election to exercise the Option and the number of
shares  in  respect  of  which  it  is  being  exercised;  and

               (ii) be  signed by the person or persons entitled to exercise the
Option and, if the Option is being exercised by any person or persons other than
the  Optionee,  be



accompanied  by  proof, satisfactory to the Company, of the right of such person
or persons to exercise the Option.

          (d)  Payment.  Payment  of  the  exercise  price  of  any  shares with
               -------
respect  to  which this Option is being exercised shall be by cash, certified or
cashier's  check,  money  order,  personal  check, shares of common stock of the
Company  owned  by  the Optionee for at least six months, or by a combination of
the  above,  delivered  to  the  Company and the exercise shall not be effective
until  such  payment is made.  If the exercise price is paid in whole or in part
with  shares of common stock of the Company, the value of the shares surrendered
shall  be  their  Fair  Market  Value  on the date received by the Company.  The
certificate  or  certificates  for shares of common stock as to which the Option
shall  be  exercised  shall  be  registered in the name of the person or persons
exercising  the  Option.

          (e)  Withholding.  The  Optionee  shall make satisfactory arrangements
               -----------
for  the withholding of any amounts necessary for withholding in accordance with
applicable  federal  or  state  income  tax  laws.

          (f)  Restrictions  on  Exercise.
               --------------------------

               (i)  This  Option  may  not  be  exercised if the issuance of the
shares upon such exercise would constitute a violation of any applicable federal
or  state  securities  or  other law or valid regulation.  As a condition to the
exercise  of  this  Option,  the  Company may require the person exercising this
Option  to  make  any  agreements  and  undertakings that may be required by any
applicable  law  or  regulation.

               (ii) Shares  issued  upon  the  exercise  of  this Option without
registration  of  such  shares under the Securities Act of 1933, as amended (the
"Act"),  shall  be  restricted securities subject to the terms of Rule 144 under
the  Act.  The  certificates  representing  any  such  shares  shall  bear  an
appropriate  legend  restricting  transfer and the transfer agent of the Company
shall  be  given  stop  transfer  instructions  with  respect  to  such  shares.

          (g)  Partial  Exercise.  Upon the exercise of this Option in part, the
               -----------------
Optionee  shall deliver this agreement to the Company which shall endorse on the
agreement  a notation of such exercise and return the agreement to the Optionee.

     4.   Nontransferability  of  Option.  This Option may not be transferred by
          ------------------------------
the  Optionee otherwise than by will or the laws of descent and distribution and
so  long  as  the  Optionee  lives,  only  the Optionee or his guardian or legal
representative  shall have the right to exercise this Option.  The terms of this
Option  shall  be  binding upon the executors, administrators, heirs, successors
and  assigns  of  the  Optionee.

                                        KIRBY  CORPORATION

                                        By  ____________________________________
                                        Name  __________________________________
                                        Title __________________________________



     The  Optionee  acknowledges  receipt  of a copy of the Plan, and represents
that  he  or  she  is familiar with the terms and provisions thereof, and hereby
accepts this Option subject to all of the terms and provisions of the Plan.  The
Optionee  hereby agrees to accept as binding, conclusive and final all decisions
or  interpretations  of  the  Committee on any questions arising under the Plan.


                                        ________________________________________
                                                       Optionee