Covid-19 continues to drag on Kirby's business, but the company believes it has found the bottom.

The US-listed tug and barge operator posted a $27.5m profit for the third quarter, or $0.46 on a per share basis, versus $48m for the same period last year.

The dip was roughly the same as the one seen in the second quarter as the pandemic continues to hold down demand for petroleum products and oilfield services.