Answer
Unfortunately not. Many Train Operating Companies offer discounts on their Travelcards in direct
relation to the quality of their past service performance. Therefore, we are unable to take into
consideration any discounts offered by National Rail Train Operating Companies.


This kind of defeats the main advantage of oyster - buying online.

P.S. Does anyone have any info on how many National Rail stations sell Oyster?

That's if you buy direct from TfL or online - there is no way they could (or would want to)
calculate the discount.

http://www.tfl.gov.uk/tfl/fares-tick...fares-2005.pdf

Page 26 of this lists the NR stations selling Oyster Cards:

Barking, Beckenham Junction, City Thameslink, Drayton Park, Ealing Broadway,
East Croydon, Essex Road, Euston, Fenchurch Street, Finsbury Park, Greenwich,
Gunnersbury, Harlesden, Harrow & Wealdstone, Kensal Green, Kensington Olympia,
Kenton, Kew Gardens, Kings Cross (Thameslink), Lewisham, Limehouse,
Liverpool Street, Marylebone, Mitcham Junction, New Cross, New Cross Gate,
North Wembley, Queen's Park, Richmond, South Kenton, Stonebridge Park,
Stratford, Upminster, Walthamstow, Wembley Central, Willesden Junction, Wimbledon