About O'Shaughnessy Estate Winery
O'Shaughnessy Estate Winery traces its roots to 1990, when Betty O'Shaughnessy acquired 32 acres of Oakville vineyard land. Working with winemaker Sean Capiaux over the following decade, the operation expanded to Howell Mountain, releasing its first wine from that mountain vineyard in 2003.
The winery's primary estate is a 120-acre Howell Mountain property that includes 42 acres of mature, roughly 30-year-old vines and estate wine caves; the broader O'Shaughnessy portfolio also draws on additional Napa Valley sites in Oakville and Mount Veeder. Farming is organic, and the winery describes an 'unhurried' approach built around each vineyard's distinct expression of place.
O'Shaughnessy's Howell Mountain estate carries 42 acres of vines roughly 30 years old, farmed organically above the valley fog line.
What Wino Notion Loved
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Three Napa AVAsThe O'Shaughnessy portfolio draws on estate vineyards across Oakville, Howell Mountain, and Mount Veeder.
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Mature Howell Mountain VinesThe 120-acre Howell Mountain estate includes 42 acres of vines roughly 30 years old, plus estate wine caves.
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Organic FarmingThe estate is organically farmed with what the winery calls an 'unhurried' commitment to terroir.
"A Howell Mountain estate built on decades-old, organically farmed vines and a multi-AVA Napa Valley portfolio."
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Featured Wines
CABERNET SAUVIGNON
O'Shaughnessy Howell Mountain Cabernet Sauvignon
Current release · Howell Mountain AVA
The estate's flagship Cabernet Sauvignon from the mature Howell Mountain vineyard.
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MERLOT
O'Shaughnessy Howell Mountain Merlot
Current release · Howell Mountain AVA
A mountain-grown Merlot from the estate's Howell Mountain vines.
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Published pricing was not confirmed in the sources reviewed; wines are sold primarily through the winery's cave tastings and wine club.
Tasting Experiences
Visit Website →Private Cave Tasting
An unhurried, by-appointment tasting in the estate caves on Howell Mountain.
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