Sources familiar with the business said the yard’s inability to secure a refund guarantee and the $45.5m price per vessel hull have created “a roadblock” for the deal.

One newbuilding broker says that at the time talks started, the price on the two 115,000-dwt, ice-class 1C resales looked cheap.

But following this year’s steep falls in shipbuilding prices he indicates that owners’ expectations are now closer to $43m on aframax newbuildings, suggesting that the Greek owner may be using the lack of refund guarantee to apply fresh pressure on the price.

Brokers