[GRAPHIC OMITED]

                                      KIRBY


KIRBY CORPORATION                                         CONTACT: STEVE HOLCOMB
                                                               713-435-1135

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


                   KIRBY CORPORATION ANNOUNCES RECORD RESULTS
                      FOR THE 2004 FOURTH QUARTER AND YEAR

     -    2004 FOURTH QUARTER EARNINGS PER SHARE WERE $.53, UP 18% COMPARED WITH
          $.45  EARNED  IN  THE  2003  FOURTH  QUARTER

     -    2004  YEAR  EARNINGS  PER SHARE WERE $1.97, UP 18% COMPARED WITH $1.67
          EARNED  IN  THE  2003  YEAR

     -    2005  FIRST  QUARTER  EARNINGS  PER  SHARE  GUIDANCE  IS  $.42 TO $.48
          COMPARED  WITH  $.36  EARNED  IN  THE  2004  FIRST  QUARTER

     -    2005  YEAR  EARNINGS PER SHARE GUIDANCE IS $2.20 TO $2.30 VERSUS $1.97
          EARNED  IN  THE  2004  YEAR

HOUSTON, TEXAS (JANUARY 26, 2005) - Kirby Corporation ("Kirby") (NYSE:KEX) today
announced  record net earnings for the fourth quarter ended December 31, 2004 of
$13,496,000,  a 22% increase compared with $11,050,000 for the fourth quarter of
2003.  On  a diluted per share basis, 2004 fourth quarter earnings were $.53, up
18%  from $.45 for the 2003 fourth quarter.  Kirby's published earnings guidance
range  for  the  2004  fourth  quarter was $.50 to $.54 per share.  Consolidated
revenues  for the 2004 fourth quarter were $173,739,000, a 14% increase compared
with  $152,028,000  for  the  2003  fourth  quarter.

Kirby  also reported record net earnings for the 2004 year of $49,544,000, a 21%
increase  compared  with  $40,918,000  for  the 2003 year.  Diluted earnings per
share  for  the  2004  year  were  $1.97,  up  18% from $1.67 for the 2003 year.
Kirby's  latest published earnings guidance range for the 2004 year was $1.94 to
$1.98  per  share.  Consolidated revenues for the 2004 year were $675,319,000, a
10%  increase  compared  with  $613,474,000  for  the  2003  year.

The  marine  transportation segment's revenues increased 13% for the 2004 fourth
quarter and 11% for the 2004 year when compared with the 2003 fourth quarter and
year.  Operating  income  increased  18% for the 2004 fourth quarter and 20% for
the  2004  year  when compared with the 2003 corresponding periods.  The results
for  both periods reflected improved petrochemical and black oil product volumes
when  compared  with  the


                                  Page 1 of 7

prior  year  periods.  As  a  result  of  the increased volumes, the segment was
successful in modestly increasing contract rates during the year and spot market
rates  were  generally  higher  than contract rates for most markets.  Operating
margins  for  the  2004 fourth quarter improved to 16.4% compared with 15.7% for
the  2003  fourth  quarter and for the 2004 year improved to 15.7% compared with
14.6%  for  the  2003  year.

The diesel engine services segment reported a 24% increase in revenues and a 21%
increase  in operating income for the 2004 fourth quarter when compared with the
2003  fourth  quarter.  For  the  2004 year, revenues increased 4% and operating
income rose 6% when compared with 2003.  The higher 2004 fourth quarter and year
results  were  primarily  from  increased  direct  parts  sales to nuclear power
generation  and rail customers, and the acquisition of the diesel engine service
operation and parts inventory of Walker Paducah Corp. in April 2004.   Also, the
East  Coast,  West Coast and Midwest marine markets strengthened during the 2004
fourth  quarter.  The  Gulf  Coast offshore oil and gas services market remained
weak during all of 2004.  The lower operating margin for the 2004 fourth quarter
reflected  an  increase  in  direct parts sales, as parts sales typically earn a
lower  margin  than  service  work.

Kirby  reported  record  EBITDA of $38.7 million for the 2004 fourth quarter and
$148.3  million  for the 2004 year.  Capital expenditures for 2004 totaled $93.6
million,  including  $42.7 million for new tank barges, which replace older tank
barges  removed  from  service,  and $50.9 million principally for upgrading the
existing  marine  transportation  fleet.  Acquisitions  of businesses and marine
equipment  for  2004  were $11.5 million, including $4.2 million for a one-third
interest  in  Osprey  Line  and  $5.8  million  for the acquisition from Walker.
Outstanding  debt  at  December  31, 2004 was $218.7 million, 14% lower than the
$255.3  million  reported  at December 31, 2003.  Kirby's debt-to-capitalization
ratio at December 31, 2004 declined to 33.4% compared with 40.7% at December 31,
2003.

Joe  Pyne, Kirby's President and Chief Executive Officer, commented, "2004 was a
record  setting year for Kirby.  Revenues, net earnings, earnings per share, and
EBITDA  were  at  the  highest  levels  in  Kirby's  history.  The  principal
contributing  factor  to our success was the improved U.S. and global economies.
As  a  result  of  the  improved economies, our core petrochemical market, which
represented  68%  of our 2004 marine transportation revenue, reflected increased
volumes  as  our  petrochemical customers increased their production.  Our black
oil  market  also  remained strong the entire year. Our upriver refined products
market  was  generally  at  traditional  levels  throughout  the year, while our
agricultural  chemical  market  was weak for the entire year, but reflected some
improvement  in  the  fourth  quarter."

Mr.  Pyne  continued,  "Our  record  2004 results were not achieved without some
challenges.  We  incurred  record  navigational  delay  days, including key lock
closures  for  repairs, high water conditions, principally during the second and
fourth  quarters,  Hurricane  Ivan in September, and a significant number of fog
days along the Gulf Coast in February, March, November and December.  Delay days
for the 2004 year were 30% higher than 2003, while the 2004 fourth quarter delay
days  were  59%  higher  than  the  fourth  quarter  of  2003."


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Commenting on the 2005 guidance, Mr. Pyne said, "We are forecasting net earnings
for the 2005 first quarter in the $.42 to $.48 per share range compared with net
earnings of $.36 per share reported for the 2004 first quarter.  We have a wider
earnings  guidance range for the first quarter, as our first quarter results are
more volatile due to the probability of increased delay days, the result of high
or  low  water  conditions, ice conditions in the Midwest and fog along the Gulf
Coast.  These  conditions  result  in  longer transit times and the operation of
additional  towboats to meet customer demands.   Our 2005 first quarter guidance
range  is  based  on  firm  petrochemical and black oil volumes, normal seasonal
upriver  refined products volumes, and some improvement in agricultural chemical
volumes."

Mr.  Pyne  further  commented,  "For  the  2005 year, Kirby's earnings per share
guidance  is  $2.20 to $2.30.  The guidance range includes an estimated $.04 per
share  of  expense  assuming  the adoption, effective July 1, 2005,  of the fair
value  method  of  accounting  for  stock-based  employee compensation.  Capital
spending  guidance  for  2005 is $110 to $120 million and includes approximately
$65 million for the construction of 18 double hull 30,000 barrel capacity inland
tank  barges  and 20 double hull 10,000 barrel capacity inland tank barges.  The
$65  million  estimate for the construction of new tank barges is subject to the
fluctuation  of  steel  prices."

This  earnings press release includes marine transportation performance measures
for both the 2004 and 2003 periods.  The performance measures include ton miles,
revenues per ton mile, towboats operated and delay days.  Comparable performance
measures  for  the 2003 and 2002 years and quarters 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.
                                                              -----------------

A  conference  call  is scheduled at 10:00 a.m. central time tomorrow, Thursday,
January  27,  2005,  to  discuss  the 2004 fourth quarter and full year, and the
outlook for the 2005 first quarter and full year.  The conference call number is
888-328-2514  for  domestic  callers and 706-679-3262 for international callers.
The  leader's  name  is  Steve  Holcomb.  An audio playback will be available at
approximately 11:00 a.m. central time on January 27 through 6:00 p.m. on Friday,
February 25, 2005, by dialing 800-642-1687 for domestic callers and 706-645-9291
for international callers.  The conference ID number is 3552716.  The conference
call  can  also  be  accessed  by  visiting  Kirby's  homepage  at
http://www.kirbycorp.com/  or  at  http://audioevent.mshow.com/209520.  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 2004 and 2003 fourth quarters and full years to 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


                                  Page 3 of 7

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.

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,  2003,  filed  with  the  Securities  and  Exchange  Commission.

                           CONFERENCE CALL INFORMATION

DATE:     THURSDAY, JANUARY 27, 2005
TIME:     10:00 A.M. CENTRAL TIME
U.S.:     888-328-2514
INT'L:    706-679-3262
LEADER:   STEVE HOLCOMB
PASSCODE: KIRBY
WEBCAST:  HTTP://WWW.KIRBYCORP.COM/ OR HTTP://AUDIOEVENT.MSHOW.COM/209520
          -------------------------    ----------------------------------


                                  Page 4 of 7

A summary of the results for the fourth quarter and year follows:





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


                                                    FOURTH QUARTER                     YEAR
                                           -----------------------------  -----------------------------
                                               2004            2003           2004           2003
                                           -------------  --------------  ------------  ---------------
                                            (UNAUDITED,   $ IN THOUSANDS    EXCEPT PER   SHARE AMOUNTS)
                                                                            
Revenues:
  Marine transportation . . . . . . . . .  $    151,156   $     133,794   $   588,828   $      530,411
  Diesel engine services. . . . . . . . .        22,583          18,234        86,491           83,063
                                           -------------  --------------  ------------  ---------------
                                                173,739         152,028       675,319          613,474
                                           -------------  --------------  ------------  ---------------
Costs and expenses:
  Costs of sales and operating expenses .       110,264          94,239       430,272          395,043
  Selling, general and administrative . .        22,142          18,768        82,917           73,149
  Taxes, other than on income . . . . . .         2,852           3,220        13,652           13,141
  Depreciation and other amortization . .        13,717          14,833        55,120           53,328
  Loss on disposition of assets . . . . .            58              37           299               99
                                           -------------  --------------  ------------  ---------------
                                                149,033         131,097       582,260          534,760
                                           -------------  --------------  ------------  ---------------

    Operating income. . . . . . . . . . .        24,706          20,931        93,059           78,714
  Equity in earnings of marine affiliates           468             723         1,002            2,932
  Other expense . . . . . . . . . . . . .          (152)           (285)         (889)          (1,021)
  Interest expense. . . . . . . . . . . .        (3,255)         (3,546)      (13,263)         (14,628)
                                           -------------  --------------  ------------  ---------------

    Earnings before taxes on income . . .        21,767          17,823        79,909           65,997
  Provision for taxes on income . . . . .        (8,271)         (6,773)      (30,365)         (25,079)
                                           -------------  --------------  ------------  ---------------

    Net earnings. . . . . . . . . . . . .  $     13,496   $      11,050   $    49,544   $       40,918
                                           =============  ==============  ============  ===============

Net earnings per share of common stock:
  Basic . . . . . . . . . . . . . . . . .  $        .55   $         .46   $      2.02   $         1.69
  Diluted . . . . . . . . . . . . . . . .  $        .53   $         .45   $      1.97   $         1.67
Common stock outstanding (in thousands):
  Basic . . . . . . . . . . . . . . . . .        24,692          24,273        24,505           24,153
  Diluted . . . . . . . . . . . . . . . .        25,425          24,734        25,157           24,506





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

                                                          FOURTH QUARTER                   YEAR
                                                  ---------------------------  ------------------------------
                                                      2004          2003           2004            2003
                                                  ------------  -------------  -------------  ---------------
                                                  (UNAUDITED,   $ IN THOUSANDS    EXCEPT PER   SHARE AMOUNTS)
                                                                                  
EBITDA:  (1)
  Net earnings . . . . . . . . . . . . . . . . .  $     13,496  $      11,050  $     49,544   $       40,918
  Interest expense . . . . . . . . . . . . . . .         3,255          3,546        13,263           14,628
  Provision for taxes on income. . . . . . . . .         8,271          6,773        30,365           25,079
  Depreciation and other amortization. . . . . .        13,717         14,833        55,120           53,328
                                                  ------------  -------------  -------------  ---------------
                                                  $     38,739  $      36,202  $    148,292   $      133,953
                                                  ============  =============  =============  ===============

EBITDA per share - diluted (1) . . . . . . . . .  $       1.52  $        1.46  $       5.89   $         5.47
Capital expenditures . . . . . . . . . . . . . .  $     17,794  $      20,169  $     93,604   $       72,356
Acquisitions of businesses and marine equipment.  $        389  $           -  $     11,474   $       37,816
                                                                                         December 31,
                                                                               ------------------------------
                                                                                    2004             2003
                                                                               -------------  ---------------
                                                                                 (UNAUDITED, $ IN THOUSANDS)
Long-term debt, including current portion . . . . . . . . . . . . . . . . .    $    218,740   $      255,265
Stockholders' equity. . . . . . . . . . . . . . . . . . . . . . . . . . . .    $    435,235   $      372,132
Debt to capitalization ratio. . . . . . . . . . . . . . . . . . . . . . . .            33.4%            40.7%



                                  Page 5 of 7



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

                                          FOURTH QUARTER              YEAR
                                       --------------------  --------------------
                                         2004        2003       2004      2003
                                       ---------  ---------  ---------  ---------
                                            (UNAUDITED,   $ IN THOUSANDS)

                                                            
Marine transportation revenues. . . .  $151,156   $133,794   $588,828   $530,411
                                       ---------  ---------  ---------  ---------

Costs and expenses:
  Costs of sales and operating expenses  92,964     80,887    365,590    332,600
  Selling, general and administrative .  17,659     14,435     65,278     57,271
  Taxes, other than on income . . . . .   2,874      3,374     13,349     12,824
  Depreciation and other amortization .  12,928     14,138     52,076     50,442
                                       ---------  ---------  ---------  ---------
                                        126,425    112,834    496,293    453,137
                                       ---------  ---------  ---------  ---------

    Operating income. . . . . . . . .  $ 24,731   $ 20,960   $ 92,535   $ 77,274
                                       =========  =========  =========  =========

    Operating margins . . . . . . . .      16.4%      15.7%      15.7%      14.6%
                                       =========  =========  =========  =========




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


                                                  FOURTH QUARTER                  YEAR
                                       -------------------------------  ------------------------
                                             2004            2003            2004         2003
                                       ----------------  -------------  --------------  --------
                                                          (UNAUDITED, $ IN THOUSANDS)
                                                                            
Diesel engine services revenues . . .  $        22,583   $     18,234   $      86,491   $83,063
                                       ----------------  -------------  --------------  --------

Costs and expenses:
  Costs of sales and operating expenses         17,454         13,315          64,723    62,266
  Selling, general and administrative .          2,790          2,923          11,882    11,530
  Taxes, other than income. . . . . . .             67             91             335       332
  Depreciation and amortization . . . .            280            257           1,163     1,045
                                       ----------------  -------------  --------------  --------
                                                20,591         16,586          78,103    75,173
                                       ----------------  -------------  --------------  --------

    Operating income. . . . . . . . . .$         1,992   $      1,648   $       8,388   $ 7,890
                                       ================  =============  ==============  ========

    Operating margins . . . . . . . . .            8.8%           9.0%            9.7%      9.5%
                                       ================  =============  ==============  ========




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


                                      FOURTH QUARTER              YEAR
                               -------------------------  -------------------
                                  2004          2003         2004       2003
                               ------------  -----------  -----------  ------
                                            (UNAUDITED , $ IN THOUSANDS)

                                                           
General corporate expenses. .  $      1,959  $     1,640  $     7,565  $6,351
                               ============  ===========  ===========  ======
Loss on disposition of assets  $         58  $        37  $       299  $   99
                               ============  ===========  ===========  ======



                                  Page 6 of 7



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


                                               FOURTH QUARTER        YEAR
                                           -----------------  ----------------
                                              2004      2003     2004     2003
                                           -------  --------  -------  -------
                                                           

Ton Miles (in millions)  (2). . . . . . .    3,938     4,115   16,232   15,582
Revenue/Ton Mile (cents/tm) (3) . . . . .      3.8       3.3      3.6      3.4
Towboats operated (average)  (4). . . . .      235       224      235      225
Delay Days  (5)(5). . . . . . . . . . . .    2,553     1,610    8,392    6,462
Average cost per gallon of fuel consumed.  $  1.40  $    .89  $  1.13  $   .89
Tank barges:
Active. . . . . . . . . . . . . . . . . . . . . . . . . . . .    885       885
Inactive. . . . . . . . . . . . . . . . .   . . . . . . . . .     56        60
Barrel capacities (in millions):
Active. . . . . . . . . . . . . . . . . . . . . . . . . . . .   16.4      16.2
Inactive. . . . . . . . . . . . . . . . . . . . . . . . . . .    1.1       1.1


- -----------------------
(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 one of the performance
     measures  used  in  Kirby's  incentive  bonus  plan. EBITDA is also used 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: Fourth
     quarter  2004 revenues of $151,156,000 divided by 3,938,000,000 ton miles =
     3.8  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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