Spot earnings for LR product tankers have fallen sharply over the past week as lower naphtha flows and reduced floating storage demand fuel a tonnage oversupply, market sources said.

Clarksons Platou Securities assessed LR2 earnings at $24,500 per day on Thursday morning, which was a 28% slump over the past week. The investment banking arm of shipbroking giant Clarksons showed LR1 earnings were down 31.3%