EXHIBIT 4.4


                       NONINCENTIVE STOCK OPTION AGREEMENT
                                KIRBY CORPORATION

                         2000 DIRECTOR STOCK OPTION PLAN

         A Nonincentive  Stock Option for a total of _________  shares of Common
Stock,  par value $0.10 per share,  of Kirby  Corporation  (the  "Company"),  is
hereby granted to

(the  "Optionee")  at the price  determined  as provided in, and in all respects
subject to the terms,  definitions  and  provisions  of, the 2000 Director Stock
Option Plan for Kirby Corporation (the "Plan"),  which is incorporated herein by
reference.

     1. Option Price. The option price is $_________ for each share,  being 100%
of the  ------------  Fair  Market  Value (as defined in the Plan) of the Common
Stock on __________, the date the Optionee was first elected as a Director.

     2. Exercise of Option. This Option shall be exercisable in whole or in part
on or ------------------ after the Date of Grant as follows:

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

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

               (b) 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.

          (ii) Payment. Payment of the purchase 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, 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.

          (iii) Withholding.  Optionee shall make satisfactory  arrangements for
     the  -----------  withholding of any amounts  necessary for  withholding in
     accordance with applicable Federal or State income tax laws.













          (iv) Restrictions on Exercise. ------------------------

               (a) 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.

               (b)  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.

     3.  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.

     4. Term of Option. This Option may not be exercised after the expiration of
ten (10) years  from the Date of Grant of this  Option and is subject to earlier
termination  as provided in the Plan.  This Option may be exercised  during such
times only in accordance with the Plan and the terms of this Option.

Date of Grant:                              KIRBY CORPORATION

                                            --------------------------------
_______________                             By


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


                                             ------------------------------
                                             Optionee