KIRBY



KIRBY CORPORATION                                       CONTACT:  STEVE HOLCOMB
                                                                  713-435-1135

FOR IMMEDIATE RELEASE
- ---------------------


                           KIRBY CORPORATION ANNOUNCES
                           2003 THIRD QUARTER RESULTS

  -  2003  THIRD  QUARTER EARNINGS PER SHARE WERE $.46 VERSUS $.49 EARNED IN THE
     2002  THIRD QUARTER (2002 THIRD QUARTER INCLUDED A $.06 PER SHARE FAVORABLE
     ADJUSTMENT  TO  ACCRUED  INSURANCE  LIABILITIES)

  -  2003  FOURTH  QUARTER  EARNINGS PER SHARE GUIDANCE IS $.44 TO $.48 VERSUS A
     LOSS  OF  $.09  FOR THE 2002 FOURTH QUARTER (2002 FOURTH QUARTER INCLUDED A
     $.52  PER  SHARE  IMPAIRMENT  CHARGE)

  -  2003  YEAR  EARNINGS  PER SHARE GUIDANCE TIGHTENED TO $1.66 TO $1.70 VERSUS
     $1.13  FOR  THE  2002  YEAR (2002 YEAR INCLUDED A $.51 PER SHARE IMPAIRMENT
     CHARGE)

HOUSTON, TEXAS (OCTOBER 23, 2003) - Kirby Corporation ("Kirby") (NYSE:KEX) today
announced  net  earnings  for  the  third  quarter  ended  September 30, 2003 of
$11,211,000,  or  $.46  per share, compared with $11,957,000, or $.49 per share,
for  the  third  quarter  of  2002.  The  2002  third quarter results included a
$2,200,000  ($1,364,000 after taxes), or $.06 per share, favorable adjustment to
accrued insurance liabilities.  Consolidated revenues for the 2003 third quarter
were $154,507,000 compared with $134,607,000 for the 2002 third quarter.  EBITDA
per share for the 2003 third quarter was $1.43 compared with $1.38 for the prior
year  third  quarter.

Kirby reported net earnings for the first nine months of 2003 of $29,868,000, or
$1.22  per  share,  compared with $29,521,000, or $1.21 per share, for the first
nine  months  of  2002.  Consolidated revenues for the first nine months of 2003
were  $461,446,000  compared  with  $395,522,000  for  the prior year first nine
months.  EBITDA  per  share for the first nine months of 2003 was $4.00 compared
with  $3.75  for  the  same  period  of  2002.

Revenue  from the marine transportation segment increased 19% for the 2003 third
quarter  compared  with  the 2002 third quarter, while operating income declined
6%.  Marine  transportation  revenue for the first nine months of 2003 increased
20%,  while  operating  income  increased  4%.  Marine  transportation operating
income  for  both  2002  periods  included  the  pre-tax  $2,200,000  favorable
adjustment  in  accrued insurance liabilities.  The 2003 third quarter and first
nine  months results reflected the October


                                   Page 1 of 7

2002  transaction with Coastal Towing, Inc. ("Coastal"), whereby Kirby purchased
10  double hull inland tank barges and 13 towboats and assumed the management of
Coastal's  remaining  54  active  black  oil  tank barges. In addition, the 2003
results  also  reflect  the  January 2003 purchase of the inland marine fleet of
SeaRiver  Maritime,  Inc. ("SeaRiver"), the U.S. marine transportation affiliate
of  Exxon  Mobil  Corporation. The SeaRiver fleet included 48 double hull inland
tank  barges  and  seven towboats, and the assumption of the leases on 16 double
hull  tank  barges.  Kirby also entered into a contract to provide inland marine
transportation  services  to  SeaRiver.

During  the 2003 third quarter, the marine transportation segment benefited from
improved  petrochemical  volumes  from  several of its significant customers and
continued  strong  volumes for petrochemicals used in the production of gasoline
blending  components.    Black  oil  products and river refined products volumes
remained  firm  in  the  third  quarter.    Liquid  fertilizer  volumes,  which
historically  are  seasonally slow in the third quarter, remained very weak when
compared  with  the prior year third quarter, as the U.S. production of nitrogen
based fertilizer continued to be curtailed due to high natural gas prices.

Revenues  for the diesel engine services segment for the 2003 third quarter were
down  5%  from  2002  third  quarter levels, while operating income for the same
comparable  quarters  was down 19%.  Continued weakness in the Midwest dry cargo
barge market and rail market, and the timing of engine overhauls in the East and
West  Coast  marine markets negatively affected the segment's third quarter 2003
results.  The  Gulf  Coast  market  improved,  benefiting  from  parts  sales to
international  offshore  oilfield  services  customers.

Equity  in earnings of marine affiliates, which primarily consist of a 35% owned
offshore  partnership operating four offshore dry-cargo barge and tug units, was
$1,022,000  for  the  2003  third quarter and $2,209,000 for the 2003 first nine
months,  significantly  higher  than the corresponding 2002 periods.  The higher
results  in  2003  reflect  close  to  full  utilization  of the four unit fleet
compared  with  2002  when  results  were negatively impacted by weather delays,
maintenance  days  and  dock  facility  closures.

Joe  Pyne,  Kirby's  President  and  Chief  Executive  Officer,  commented, "Our
operating  margins  in both our marine transportation and diesel engine services
segments  weakened  during  the third quarter.  The marine transportation margin
was  15.5% in the 2003 third quarter compared with a reported 2002 third quarter
margin  of  19.5%,  or  17.6% when adjusted for the pre-tax $2,200,000 favorable
adjustment  to  accrued  insurance liabilities.  The acquisitions of the Coastal
and SeaRiver inland tank barge assets have helped add to revenues and profits in
2003;  however, our margins have declined, as we have not been able to raise our
transportation rates sufficiently to offset our increases in costs and expenses.
Our  core petrochemical market has been under pressure since the summer of 2000.
On  the  diesel  engine  services  side of our business, the decline in the 2003
third  quarter  operating  margin  was  primarily  due  to  lower  revenues."

Mr.  Pyne  further commented, "We are encouraged by the recent comments from our
petrochemical  customers  forecasting  higher  production levels, which are more
optimistic  concerning  improving conditions in the U.S. petrochemical industry.
We  are  not  forecasting  much  strengthening  of petrochemicals volumes in our
fourth  quarter


                                   Page 2 of 7

guidance.  We  anticipate  black  oil volumes to remain strong, refined products
volumes  to  return  to  normal  fourth quarter seasonal levels and for a normal
liquid  fertilizer  fall  season."

Further  commenting  on  the  fourth  quarter as well as the 2003 year, Mr. Pyne
said, "Based on the recent comments from our marine transportation petrochemical
customers,  current  market  conditions  and  the  more  recent  positive  tones
regarding  the U.S. economy, our earnings per share guidance for the 2003 fourth
quarter  is  $.44 to $.48. This guidance compares with a $.09 per share net loss
in  the  2002 fourth quarter, which included a $.52 per share impairment charge.
For  the  2003  year,  our  earnings per share guidance is $1.66 to $1.70.  This
guidance  compares  with  2002  net earnings per share of $1.13 per share, which
included  an  impairment  charge  of  $.51  per  share."

This  earnings  press  release  includes  condensed  consolidated  statements of
earnings,  separate  marine transportation and diesel engine services statements
of earnings, and marine transportation performance measurements for the 2003 and
2002 third quarters and first nine months.  The performance measurements include
ton miles, revenues per ton mile, towboats operated and delay days.  Definitions
of the performance measurements are included after the measurement table on page
7  of  this  press  release.  Comparable  marine  transportation  performance
measurements  by  quarter for the 2002 year and the first three quarters of 2003
are  available at Kirby's web site under the caption Performance Measurements in
the  Investor  Relations  section.  Kirby's homepage can be accessed by visiting
www.kirbycorp.com.
- -----------------

Kirby  has scheduled a conference call at 10:00 a.m. central time today, October
23,  2003,  to  discuss  the  2003  third quarter and first nine months, and the
outlook  for  the  2003  fourth quarter and year.  The conference call number is
888-455-9641  for  domestic  callers and 773-756-4700 for international callers.
The passcode is Kirby and the leader's name is Steve Holcomb.  An audio playback
will  be  available starting at approximately 12:00 noon central time on October
23  through  5:00 p.m. on Friday, November 21, 2003, by dialing 800-297-0768 for
domestic  callers  and  402-220-3822  for international callers.  The conference
call  can  also  be  accessed  by  visiting  Kirby's  homepage  at
http://www.kirbycorp.com/  or  at  http://www.vcall.com/.  A  replay  will  be
- -------------------------          ---------------------
available on each of those Web Sites following the conference call.

The  financial  and  other information to be discussed in the conference call is
available  in this press release and in a Form 8-K filed with the Securities and
Exchange  Commission.  This  press  release  and the Form 8-K include a non-GAAP
financial  measure,  EBITDA, which Kirby defines as net earnings before interest
expense,  taxes  on  income, depreciation and amortization.  A reconciliation of
EBITDA  for the 2003 and 2002 third quarters and first nine months with GAAP net
earnings  for  the  same  periods  is  included  in  the  Condensed Consolidated
Financial  Information  in  this  press  release.

Kirby  Corporation,  based  in  Houston,  Texas, operates inland tank barges and
towing  vessels,  transporting  petrochemicals,  black  oil  products,  refined
petroleum  products  and  agricultural  chemicals  throughout  the United States
inland  waterway  system.  Through  the  diesel  engine  services segment, Kirby
provides  after-market  service  for  large  medium-speed diesel engines used in
marine,  power  generation  and  industrial,  and  railroad  applications.


                                   Page 3 of 7

Statements  contained  in  this  press  release  with  respect to the future are
forward-looking  statements.  These  statements  reflect management's reasonable
judgment  with  respect  to  future  events.  Forward-looking statements involve
risks  and  uncertainties.  Actual  results  could  differ materially from those
anticipated  as  a  result  of  various  factors,  including  cyclical  or other
downturns in demand, significant pricing competition, unanticipated additions to
industry  capacity,  changes  in  the  Jones  Act or in U.S. maritime policy and
practice,  fuel costs, interest rates, weather conditions, and timing, magnitude
and  the  number  of  acquisitions  made by Kirby.  A listing of additional risk
factors  can  be  found in Kirby's annual report on Form 10-K for the year ended
December  31,  2002,  filed  with  the  Securities  and  Exchange  Commission.

                           CONFERENCE CALL INFORMATION

DATE:        OCTOBER 23, 2003
TIME:        10:00 A.M. CENTRAL TIME
U.S.:        888-455-9641
INT'L:       773-756-4700
LEADER:      STEVE HOLCOMB
PASSCODE:    KIRBY
WEBCAST:     HTTP://WWW.KIRBYCORP.COM/ OR HTTP://WWW.VCALL.COM/
             -------------------------    ---------------------



                                   Page 4 of 7



A summary of the results for the third quarter and first nine months follows:

                          CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS
                          ---------------------------------------------

                                                            Third Quarter                  Nine Months
                                                     ----------------------------  ----------------------------
                                                         2003           2002           2003           2002
                                                     -------------  -------------  -------------  -------------
                                                                                      
                                                        (unaudited, $ in thousands except per share amounts)

Revenues:
  Marine transportation . . . . . . . . . . . . . .  $    134,396   $    113,343   $    396,617   $    329,679
  Diesel engine services. . . . . . . . . . . . . .        20,111         21,264         64,829         65,843
                                                     -------------  -------------  -------------  -------------
                                                          154,507        134,607        461,446        395,522
                                                     -------------  -------------  -------------  -------------
Costs and expenses:
  Costs of sales and operating expenses . . . . . .        98,800         81,652        300,804        247,868
  Selling, general and administrative . . . . . . .        18,069         16,748         54,381         49,436
  Taxes, other than on income . . . . . . . . . . .         3,385          2,627          9,921          7,185
  Depreciation and other amortization . . . . . . .        13,369         10,826         38,495         33,845
  Loss (gain) on disposition of assets. . . . . . .           (71)          (425)            62           (593)
                                                     -------------  -------------  -------------  -------------
                                                          133,552        111,428        403,663        337,741
                                                     -------------  -------------  -------------  -------------

    Operating income. . . . . . . . . . . . . . . .        20,955         23,179         57,783         57,781
  Equity in earnings (loss) of marine affiliates. .         1,022            (68)         2,209            872
  Other expense . . . . . . . . . . . . . . . . . .          (134)          (447)          (736)          (788)
  Interest expense. . . . . . . . . . . . . . . . .        (3,761)        (3,378)       (11,082)       (10,251)
                                                     -------------  -------------  -------------  -------------

    Earnings before taxes on income . . . . . . . .        18,082         19,286         48,174         47,614
  Provision for taxes on income . . . . . . . . . .        (6,871)        (7,329)       (18,306)       (18,093)
                                                     -------------  -------------  -------------  -------------

    Net earnings. . . . . . . . . . . . . . . . . .  $     11,211   $     11,957   $     29,868   $     29,521
                                                     =============  =============  =============  =============

Net earnings per share of common stock:
  Basic . . . . . . . . . . . . . . . . . . . . . .  $        .46   $        .50   $       1.24   $       1.23
  Diluted . . . . . . . . . . . . . . . . . . . . .  $        .46   $        .49   $       1.22   $       1.21
Common stock outstanding (in thousands):
  Basic . . . . . . . . . . . . . . . . . . . . . .        24,166         24,016         24,112         24,080
  Diluted . . . . . . . . . . . . . . . . . . . . .        24,545         24,217         24,429         24,438




                                    CONDENSED CONSOLIDATED FINANCIAL INFORMATION
                                    --------------------------------------------

                                                               Third Quarter                    Nine Months
                                                      -------------------------------  -----------------------------
                                                           2003             2002            2003           2002
                                                      ---------------  --------------  --------------  -------------
                                                                                           
                                                           (unaudited, $ in thousands except per share amounts)

EBITDA:  (1)
  Net earnings . . . . . . . . . . . . . . . . . . .  $       11,211   $      11,957   $       29,868  $      29,521
  Interest expense . . . . . . . . . . . . . . . . .           3,761           3,378           11,082         10,251
  Provision for taxes on income. . . . . . . . . . .           6,871           7,329           18,306         18,093
  Depreciation and other amortization. . . . . . . .          13,369          10,826           38,495         33,845
                                                      ---------------  --------------  --------------  -------------
                                                      $       35,212   $      33,490   $       97,751  $      91,710
                                                      ===============  ==============  ==============  =============

EBITDA per share - diluted (1) . . . . . . . . . . .  $         1.43   $        1.38   $         4.00  $        3.75
Capital expenditures . . . . . . . . . . . . . . . .  $       14,464   $      10,964   $       52,187  $      39,198
Acquisition of businesses and marine equipment . . .  $            -   $       1,800   $       37,816  $       4,600

                                                                                       September 30,   December 31,
                                                                                            2003           2002
                                                                                       --------------  -------------
                                                                                        (unaudited, $ in thousands)

Long-term debt, including current portion . . . . . . . . . . . . . . . . . . . . . .  $      270,049  $     266,001
Stockholders' equity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  $      356,590  $     323,311
Debt to capitalization ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . .           43.1%          45.1%



                                   Page 5 of 7



                      MARINE TRANSPORTATION STATEMENTS OF EARNINGS
                      --------------------------------------------

                                             Third Quarter             Nine Months
                                         ----------------------  ----------------------
                                            2003        2002        2003        2002
                                         ----------  ----------  ----------  ----------
                                                                 
                                                  (unaudited, $ in thousands)

Marine transportation revenues. . . . .  $ 134,396   $ 113,343   $ 396,617   $ 329,679
                                         ----------  ----------  ----------  ----------

Costs and expenses:
  Costs of sales and operating expenses     83,492      65,530     251,713     198,179
  Selling, general and administrative .     14,216      13,155      42,836      38,931
  Taxes, other than on income . . . . .      3,206       2,517       9,450       6,820
  Depreciation and other amortization .     12,654       9,983      36,304      31,447
                                         ----------  ----------  ----------  ----------
                                           113,568      91,185     340,303     275,377
                                         ----------  ----------  ----------  ----------

    Operating income. . . . . . . . . .  $  20,828   $  22,158   $  56,314   $  54,302
                                         ==========  ==========  ==========  ==========

    Operating margins . . . . . . . . .       15.5%       19.5%       14.2%       16.5%
                                         ==========  ==========  ==========  ==========




                   DIESEL ENGINE SERVICES STATEMENTS OF EARNINGS
                   ---------------------------------------------

                                             Third Quarter          Nine Months
                                         --------------------  --------------------
                                           2003       2002       2003       2002
                                         ---------  ---------  ---------  ---------
                                                              
                                                 (unaudited, $ in thousands)

Diesel engine services revenues . . . .  $ 20,111   $ 21,264   $ 64,829   $ 65,843
                                         ---------  ---------  ---------  ---------

Costs and expenses:
  Costs of sales and operating expenses    15,246     16,066     48,951     49,498
  Selling, general and administrative .     2,859      2,826      8,607      8,424
  Taxes, other than income. . . . . . .        81         65        241        214
  Depreciation and other amortization .       272        265        788        685
                                         ---------  ---------  ---------  ---------
                                           18,458     19,222     58,587     58,821
                                         ---------  ---------  ---------  ---------

    Operating income. . . . . . . . . .  $  1,653   $  2,042   $  6,242   $  7,022
                                         =========  =========  =========  =========

    Operating margins . . . . . . . . .       8.2%       9.6%       9.6%      10.7%
                                         =========  =========  =========  =========




                            OTHER COSTS AND EXPENSES
                            ------------------------

                                          Third Quarter       Nine Months
                                       ------------------  -----------------
                                         2003      2002     2003      2002
                                       --------  --------  -------  --------
                                                        
                                           (unaudited, $in thousands)

General corporate expenses. . . . . .  $ 1,597   $ 1,446   $ 4,711  $ 4,136
                                       ========  ========  =======  ========
Loss (gain) on disposition of assets.  $   (71)  $  (425)  $    62  $  (593)
                                       ========  ========  =======  ========



                                   Page 6 of 7



                  MARINE TRANSPORTATION PERFORMANCE MEASUREMENTS
                  ----------------------------------------------

                                              Third Quarter       Nine Months
                                           ------------------  ------------------
                                             2003      2002      2003      2002
                                           --------  --------  --------  --------
                                                             
Ton Miles (in millions)  (2). . . . . . .     4,021     3,473    11,467     9,652
Revenue/Ton Mile (cents/tm) (3) . . . . .       3.3       3.3       3.5       3.4
Towboats operated (average) (4) . . . . .       222       196       226       200
Delay Days (5). . . . . . . . . . . . . .     1,001     1,072     4,852     4,386
Average cost per gallon of fuel consumed.  $    .86  $    .73  $    .89  $    .68
Tank barges:
    Active. . . . . . . . . . . . . . . . . . . . . . . . . .       882       809
    Inactive. . . . . . . . . . . . . . . . . . . . . . . . .        70        67


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

(1)  Kirby  has  historically evaluated its operating performance using numerous
     measures,  one  of  which  is  EBITDA,  a non-GAAP financial measure. Kirby
     defines  EBITDA  as  net earnings before interest expense, taxes on income,
     depreciation  and  amortization.  EBITDA  is  presented because of its wide
     acceptance  as  a financial indicator. EBITDA is used by Kirby's lenders in
     loan covenants, by rating agencies in determining Kirby's credit rating and
     by  analysts  publishing research reports on Kirby, as well as by investors
     and  investment  bankers  generally  in  valuing companies. EBITDA is not a
     calculation  based  on  generally accepted accounting principles and should
     not  be  considered  as an alternative to, but should only be considered in
     conjunction  with,  Kirby's  GAAP  financial  information.
(2)  Ton  miles indicate fleet productivity by measuring the distance (in miles)
     a  loaded  tank barge is moved. Example: A typical 30,000 barrel tank barge
     loaded  with 3,300 tons of liquid cargo is moved 100 miles, thus generating
     330,000  ton  miles.
(3)  Marine transportation revenues divided by ton miles. Example: Third quarter
     2003  revenues  of  $134,396,000  divided  by 4,021,000,000 ton miles = 3.3
     cents.
(4)  Towboats  operated  are  the average number of owned and chartered towboats
     operated  during  the  period.
(5)  Delay  days  measures  the  lost  time  incurred by a tow (towboat and tank
     barges)  during  transit.  The  measure  includes  transit delays caused by
     weather,  lock  congestion  and  other  navigational  factors.


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