American Shipping Co (AMSC) could follow up a huge new offshore vessel investment with more diversification deals, analysts believe.

The Oslo-listed owner has 10 Jones Act product tankers on bareboat charter to Overseas Shipholding Group (OSG).

But this month, AMSC branched out into a new sector by spending $157m to buy the 177-loa offshore construction vessel Normand Maximus (built 2016) from Norway’s Solstad Offshore.