UNI-TANKERS A/S.

Arctic Swan’s January 1997 photograph shows the logo with UNI-TANKERS beneath it. Arctic Swan demonstrates that a narrow black funnel top could accompany this and the later version.

Arctic Swan and Euro Swan provide port-side funnel evidence, while Fionia Swan’s 2006 starboard view also shows the flag. A July 2009 port-side view of Fionia Swan reverses the symbol and appears darker blue, possibly because the funnel is in shadow.

The source lists a further photographic funnel version without explicitly assigning the nearby reversal observation to this ID; no additional individual relationship is invented.