Andreas Sohmen-Pao's BW LPG has fallen to a fourth quarter loss due to vessel impairments during a period its spot-trading vessels under-performed those of one-time takeover target Dorian LPG.

The VLGC owner said the net deficit to 31 December was $34.1m, against a loss of $19m in 2017.

An adjusted loss of $3m fell below the consensus forecast for an $12m profit during the quarter.