Sounds like some kind of oil port facility, according to this:

https://www.devdiscourse.com/article/law-order/3696965-ukrainian-drone-strikes-shake-russian-port-of-novorossiysk

A Ukrainian drone attack on Friday damaged three apartment buildings, an oil depot, and coastal structures in the Russian Black Sea port of Novorossiysk. Fragments hit apartments, smashing windows but causing no injuries. An oil depot and coastal structures were also damaged. Further details remain sparse.

The drone attack also affected an oil depot within a trans-shipment complex and coastal facilities, though specifics on the extent of the damage have not been disclosed.

EDIT: Here's something from a more-respectable source:

https://www.reuters.com/world/ukrainian-drones-damage-ship-dwellings-oil-depot-russias-novorossiysk-2025-11-14/

Ukrainian drones damage ship, dwellings, oil depot in Russia's Novorossiysk

Nov 14 (Reuters) - A Ukrainian drone attack early on Friday damaged a ship in port, apartment buildings and an oil depot in the Russian Black Sea port of Novorossiysk, injuring three crew members of the vessel, Russian officials said.
The operational headquarters of the Krasnodar region said on Telegram that the three injured crew members were being treated in hospital.

It said drone fragments hit at least four apartments, smashing windows but causing no injuries.
The attack also triggered a fire at an oil depot in a transshipment complex, which was brought under control by emergency crews. The operational headquarters said coastal structures were also damaged, but provided no further details.
Reuters could not verify the account of the attacks and there was no immediate comment from Ukrainian officials.

EDIT2:

https://kyivindependent.com/russian-oil-terminal-in-novorossiysk-on-fire-following-ukrainian-drone-strikes/

Russian oil terminal in Novorossiysk on fire following reported Ukrainian drone strikes

The attack hit the Sheskharis oil complex, where infrastructure facilities were damaged and a blaze broke out.