Does anyone know how to remove a surface scratch from white oak hardwood flooring? Thanks

If the color is still there you might polish it out with danish oil or some other polish. If the color is gone, you may need to get a stain stick, it's like a marker, only it has stain for wood. Use the stick to color it and then polish.
If the scratch is deep, you may have to fill it with the right colored wood puddy, then stain and polish.
But then again, I'm not really a wood worker, but that's what I'm thinking.