Oscar Renteria is an American viticulturalist and California winemaker who specializes in the Napa Valley.
[1] Renteria's father, Salvador, moved to Napa Valley in 1962 from Jalisco, Mexico.
After working as a barber and pool shark, Salvador took a position working the vineyards for Sterling Vineyards in Napa where he quickly rose to crew leader due to his more advanced English-speaking abilities.
From Sterling Salvador went on to pioneer several viticultural techniques in Napa Valley including different vine training systems and advance canopy management techniques.
[1][non-primary source needed] In 1987, Salvador started Renteria Vineyard Management Co., with his son Oscar eventually assuming control of the operation upon Salvador's retirement.