(1) Ton miles indicate fleet productivity by measuring the distance (in miles) a loaded inland tank barge is moved. Example: A typical 30,000 barrel inland tank barge loaded with 3,300 tons of liquid cargo is moved 100 miles, thus generating 330,000 ton miles.
(2) Inland marine transportation revenues divided by ton miles. Example: First quarter 2022 inland marine revenues of $277.9 million divided by 3,168 million ton miles = 8.8 cents.
(3) Towboats operated, is the average number of owned and chartered inland towboats operated during the period.
(4) Delay days measures the lost time incurred by an inland tow (inland towboat and one or more inland tank barges) during transit. The measure includes transit delays caused by weather, lock congestion and other navigational factors.
Prepared on: April 28, 2022
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Kirby Corporation published this content on 20 April 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 28 April 2022 11:40:44 UTC.
Kirby Corporation is a domestic tank barge operator. The Company transports bulk liquid products throughout the Mississippi River System, on the Gulf Intracoastal Waterway, and coastwise along all three United States coasts. The Company, through its marine transportation segment (KMT), transports petrochemicals, black oil, refined petroleum products, and agricultural chemicals by tank barge. It also participates in the transportation of dry-bulk commodities in the United States coastwise trade. Through its distribution and services segment (KDS), it sells after-market service and genuine replacement parts for engines, transmissions, reduction gears and power generation equipment used in oil and gas and commercial and industrial applications. It also rents a variety of power generation and industrial equipment, manufactures and remanufactures oilfield service equipment, including pressure pumping units, and manufactures electric power generation equipment for oilfield service customers.
KIRBY CORPORATION 
