Keith Tulloch produces wines from the Hunter Valley, one of Australia's most distinctive cool-climate regions. The winery focuses on two signature varieties: Shiraz, which thrives in Hunter conditions with structure and restraint, and Sémillon, the region's classic white. The Field of Mars Block 1 Shiraz and Latara Vineyard Sémillon represent the core of the portfolio, both rated 92 points by prestige critics including Wine Advocate, Decanter, Wine Spectator, Wine Enthusiast, and Falstaff. A Shiraz-Viognier blend rounds out the range, adding textural complexity through the white grape's floral and stone-fruit character. Hunter Valley's moderate temperatures and slate soils encourage wines of precision rather than power—a philosophy evident across the lineup. The winery's approach emphasizes the terroir of individual vineyard blocks, allowing vintage variation and site character to shape each release.