Nordic American Tankers (NAT) secured the highest cash flow in its history in 2015 despite finishing the year with a weaker than expected quarter.

Herbjorn Hansson-led NAT booked a profit of $30.15m in the final three months to take its full year bottom line to $114.63m.

While fourth quarter profit was better than the $25.83m seen a year ago, earnings per share of $0.34