Kirby Corp reported a better-than-expected third quarter, but the Houston company does not see the good times rolling.

For the three months ending 30 September, New York-traded Kirby posted a $48m profit, good for $0.80 per share and $0.08 better than analysts had predicted.

The performance was lead by a strong showing from its marine transportation segment, with revenue growing year-over-year by $30.7m