Key operating performance measures Q3 2021

KIRBY CORPORATION

MARINE TRANSPORTATION PERFORMANCE MEASUREMENTS

		2021					2020				2019		2018		2017		2016		2015		2014		2013		2012		2011
	1Q	2Q	3Q	YTD		1Q	2Q	3Q	4Q	Total		Year		Year		Year		Year		Year		Year		Year		Year		Year
Inland Performance Measurements:
Ton miles (in millions) (1)	2,981	3,478	3,393	9,852	3,619	3,688	2,794	2,905	13,006	14,611	14,501	11,519	11,161	12,502	13,088	11,754	12,224	13,414
Revenues/Ton mile (cents/tm) (2)	7.5	7.3	7.5	7.4	8.8	8.2	8.9	7.8	8.4	8.4	7.7	8.0	8.5	8.7	8.8	9.8	8.9	7.6
Towboats operated (3)	241	260	243	248	311	324	265	248	287	299	278	224	234	248	251	256	245	240
Delay days (4)	2,854	2,922	1,499	7,275	4,490	2,815	1,335	1,768	10,408	13,259	10,046	7,577	7,278	7,924	7,804	7,843	6,358	6,777

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: Third quarter 2021 inland marine revenues of $255,791,000 divided by 3,393,000,000 ton miles = 7.5 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: October 28, 2021