XOBC Cellars is a Washington winery founded in 2019 by Brandi Carlile, rooted in the Walla Walla Valley and crafted by winemaker Sean Boyd. The winery focuses on Grenache, Pinot Noir, Chardonnay, Riesling, and Pinot Gris, drawing from Rocks Estate Vineyard. A portion of proceeds from each bottle supports The Looking Out Foundation.