Hi, this looks like oiled oak,

It does look like oiled Oak although it has quite a soft warm tone to it suggesting it may have a coloured oil applied before the clear oil coats are applied.

I would suggest you go to a local professional wood flooring company and show them the picture.

Middlesex, Wide plank in colour Silk · 詳細

This is an oak floor, rustic grade, and finished in a hard wax oil.

The floor looks like it has been smoked.

Like Millers has said, it may have had a coloured oil on top to give it a slightly warmer tone, the grain does look to be highlighted a bit, although this could just be the light.

Possibly like our colour Silk (see photo attached).

Maybe it is just smoked, and could be something similar to our smoked - see photo below:

London Fields, Chevron in colour Smoked · 詳細

Hope this is of some help.

Kind regards

Henry Hudson