Valdes, Pinto, Pique, Cesc, Puyol, Xavi, Villa, Iniesta, Alexis, Messi, Thiago, Mascherano, Busquets, Pedro, Cuenca & Cristian Tello
However there are also names the apparently are transferable:
Alves, Adriano, Keita, Afellay, Montoya, Bartra, Muniesa, Fontas & Jonathan dos Santos.
Big surprise (or not) is to see Dani Alves on the list. Apparently the player was one of three ( Pique & Cesc the others) the had a fall-out with Guardiola. Plus I am mildly surprised to see Afellay listed who is relatively doing well in the Euro 2012 comp & has recovered from injury.
Apart from this - along with Keita & Adriano - the others are all youngsters with huge talent that will have many Clubs knocking on their doors if Barça does actually decide to let them go. A long list of potential cash flow for the Club.