Bobdogs
On Moderation
Gulf Oil/Elf now Murco Hebrandston still used by oil trains.Gulf Oil refinery branch near Milford Haven is still intact, I think.
Also the Trecwn branch near Fishguard.
I think both of these are more mothballed rather than disused, though the first of those is pretty overgrown.
Track has recently been lifted at the Kidwelly end, presumably all the way to the site of the former washery.Track still exists between Kidwelly and Cwmmawr on the old BPGV line. Last used over 20 years ago. There was a proposal to turn it into a velorail where you could peddle along the rails, but that seems to have come to nothing.