Wikipedia$1:
According to Navy Commander Vice Admiral Yuriy Ilyin, at the beginning of 2013, the fleet had 11 warships fully ready to perform complex tasks and ten aircraft and 31 supply vessels in working order.
As of March 24, 2014, most of the Ukrainian ships in Sevastopol were taken by the Russian Black Sea Fleet, including several aircraft and other equipment.
Returned to Ukrainian navy:
1 Corvette (plus 1 under construction)
1 Fast attack vessel (missile boat)
1 Landing craft tank
Status unknown:
2 Corvettes (scheduled to be returned)
1 Patrol boat
1 Landing craft
2 Diving vessels
1 Transport barge
1 Research vessel
1 Minesweeper
1 Command ship
Still Ukrainian (was in Crete during Crimea invasion):
1 Frigate
Sounds a lot more valuable than the money in Crimea banks.
All stuff in very bad conditions, Russians broke everything that could be broken. In addiction it was very old before.