Kirby's fourth-quarter earnings were given a major boost thanks to a one-time tax reform benefit. But the company expects its marine transportation business to lessen this quarter and all of 2018.
The New York-listed owner's profit for the quarter came in at $231.5m, up 614% from net income of $32.4m a year earlier due to the one-off. As a result, diluted earnings per share came in at $3.87,
