Following Daniel's death in 1970, Napanook passed to his daughters Robin Lail and Marcia Smith who in 1982 began a partnership with Christian Moueix, acting on a recommendation by Robert Mondavi to establish production in Napa Valley. Moueix, also in charge of production at Château Pétrus and president of Établissements Jean-Pierre Moueix, became the sole owner of Dominus Estate when Lail and Smith sold their shares in 1995. Napanook, the estate's second wine, was first released in 1996.
With the previous thirteen vintages crushed and aged at the nearby facility Rombauer Winery, a new winery was constructed by the Swiss architects Jaques Herzog and Pierre de Meuron in 1996, a USD$5 million, structure. The architects' first U.S. project, it was designed to provide protection from scorching heat by day and the cold at night.
The annual production is 70,000 to 100,000 bottles (6,000 to 8,000 cases), half of which is bottled as Dominus and the remainder as Napanook.