Kirby : to Present at Stephens Fall Investment Conference

FOR IMMEDIATE RELEASE

Presentation date & time: Wednesday, November 8, 2017, 9:00 a.m. central / 10:00

a.m. eastern time

Presenter: David Grzebinski, President and Chief Executive Officer Location: New York, NY

A live audio webcast of the presentation will be available to the public and a replay will be available for 90 days after the presentation by visiting Kirby's website at http://www.kirbycorp.com. A copy of the material prepared by Kirby for the presentation will be available at 9:00 a.m. central time on Wednesday, November 8, 2017 on Kirby's website.

Kirby Corporation, based in Houston, Texas, is the nation's largest domestic tank barge operator transporting bulk liquid products throughout the Mississippi River System, on the Gulf Intracoastal Waterway, coastwise along all three United States coasts, and in Alaska and Hawaii. Kirby transports petrochemicals, black oil, refined petroleum products and agricultural chemicals by tank barge. Kirby also operates offshore dry-bulk barge and tugboat units engaged in the offshore transportation of dry- bulk cargoes in the United States coastal trade. Through the distribution and services segment, Kirby provides after-market service and parts for engines, transmissions, reduction gears, and related equipment used in oilfield services, marine, power generation, on-highway, and other industrial applications. Kirby also rents equipment including generators, fork lifts, pumps, and compressors for use in a variety of industrial markets, and manufactures and remanufactures oilfield service equipment, including pressure pumping units, for land-based oilfield service customers.

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 number of acquisitions made by Kirby. Forward-looking statements are based on currently available information and Kirby assumes no obligation to update any such statements. A list of additional risk factors can be found in Kirby's annual report on Form 10-K for the year ended December 31, 2016 filed with the Securities and Exchange Commission.

55 Waugh Drive Suite 1000 P. O. Box 1745 Houston, Texas 77251 713/435-1000 Fax 713/435-1010