Kirby’s second-quarter earnings were backed by steady fundamentals in its coastal tank barge fleet that neared full utilisation, mirroring the first quarter.

The Houston tug and barge owner reported a net income of $83.9m, a significant rise from $57.4m in the first three months of 2023.

Chief executive David Grzebinski said: “Solid demand in both marine and distribution and services, continued during the quarter and led to strong financial performance.