Harry Vafias has revealed that StealthGas has driven up fixed rates by as much as 10% in a series of recent charter deals.

The Nasdaq-listed LPG carrier company said in its fourth-quarter results that it had fixed three mid-sized vessels to oil majors on one-year contracts through to February and March next year.

The chief executive of the Greek owner told a conference call that the undisclosed rates for these deals were between 5% and 10% above the last fixed-rate charter levels.