Robert Oatley produces wines from New South Wales that have drawn assessment from major critics including Wine Spectator, Wine Enthusiast, Wine Advocate, Decanter, and Falstaff. The winery's portfolio centers on three flagship expressions: The Pennant Chardonnay, a refined take on the classic white variety; G-17 Grenache, a signature red that showcases the grape's spiced fruit character; and The Pennant Cabernet Sauvignon, which brings structure and depth to the portfolio. Each wine reflects the conditions of its region—a landscape capable of producing both elegant whites and layered reds. The Pennant Chardonnay leads the range in critical assessment, followed by the G-17 Grenache and The Pennant Cabernet Sauvignon. These wines represent the winery's core offering, each built from its respective varietal's essential character.