Shadow tanker sales continue to proliferate, something one Asia-based broker compares to a house of cards stuck together with degradable glue.

“They solidly support prices for now but one small change in policy or policing and the whole thing goes kerplunk,” he advises.

Prices for tankers are getting too punchy for some - as evidenced in our lead story this month - with Gibson noting: “Prices have crept to levels where prospective buyers are left to ponder whether they can make the numb...