Wkipedia lists these as being owned by Diageo
Blair Athol, Caol Ila, Cardhu, Knockando, Glen Elgin, Clynelish, Cragganmore, Dalwhinnie, Glenkinchie, Glen Ord, Lagavulin, Oban, Royal Lochnagar, Talisker, Mannochmore, Mortlach and Glenlossie (Blue is what Diageo lists as its Classic Malts)
Diageo's corporate report says they own 29 whisky disilleries in Scotland and says they announced in 2007 their intent to build another malt distillery in the north of Scotland...I can't find a full list of properties



