Tony?s life-long relationships with grape growers throughout the Napa Valley are the key to Oberon?s quality. He is able to draw on those friendships to reliably obtain top quality fruit at a fair price year after year. For Oberon, Tony selects Cabernet Sauvignon, Merlot and Sauvignon Blanc grapes from Napa?s best winegrowing regions, including Rutherford, Oakville, Oak Knoll, Wooden Valley, and the Michael Mondavi Family?s Oso Vineyard at the northeastern end of Napa Valley.