"Paul Oter" wrote in message
...

TFL's website www.oystercard.com will only sell travelcards for Zones 1-6
and A-D. Will a LUL station sell you one valid to/from a station outside
these zones, such as my example Luton?

Those LUL operated ticket offices that have TOC services, such as Moorgate,
Farringdon and Finsbury Park will certainly be able to.