Connecticut-based Penfield Marine says it has become the first tanker pool to execute a carbon-neutral voyage.

Penfield, a leading commercial manager and pools operator, said it carried out the voyage in conjunction with the Macquarie Group’s commodities and global markets division using the 158,400-dwt Seaways Hatteras (built 2017), a suezmax owned by New York-listed International Seaways.

Penfield is now collaborating with Macquarie to offer what it calls “environmentally differentiated freight products” to its customers.

The structure involves retiring carbon offsets sufficient to cover the carbon footprint of an entire voyage, including the ballast leg and all in-port functions.