Spot oriented suezmax tanker owner Nordic American Tankers (NAT) has locked two of its vessels into six months charters with Petco, European tanker brokers say.

The United Arab Emirates-based company is paying $55,000 per day for the 150,000-dwt Nordic Castor (built 2004) and the Nordic Pollux (built 2003) with delivery in Singapore.

New York-listed NAT has a fleet of 23 suezmax tankers and states on its website that all its vessels are employed in the spot market.