I've come across a couple of photos (which I've unsuccessfully tried to attach) which look very similar to the Wellington on this thread - including the unusual baggage hatch under the cockpit.
In my photos the aircraft is identified as LP 201, a Mk 10 which was named "Sister Anna" and was the personal mount of AVM Keukny, Director of Maintenance and Supply Middle East.
It's possible that this Transport variant was subsequently used as a general hack aircraft for oil exploration personnel in the Gulf area ?
(I'll have another attempt to upload the photos later)