Dorian LPG may have fallen short of Wall Street expectations, but the company claims to be ahead of the game when it comes to environmental compliance.

The New York-listed LPG carrier owner said on Tuesday that it delivered an average efficiency ratio (AER) of 7.93 grams of CO2 per tonne-mile.

That is better than the expectation of 8.6 grams per tonne-mile called for by the Poseidon Principles for the VLGCs owned by the Connecticut-based shipowner.