Silver Oak was founded to focus on Cabernet Sauvignon in 1972 by entrepreneur Raymond Twomey Duncan and winemaker Justin Meyer, and makes two key wines based on their respective AVAs. The 2017 Napa Valley Cabernet Sauvignon is comprised of 80.8% Cabernet Sauvignon, 14.6% Merlot, 2.9% Petit Verdot, 1% Cabernet Franc and 0.7% Malbec. In early 2018, the final blend was transferred to American oak barrels from the winery's own cooperage, The Oak, where it aged for 24 months.