The O/U certifies Wellsley Farms Blueberry & Chocolate Waffles as O/UD (dairy). Some labels were printed with a plain O/U mark, without the “D” (dairy designation).
From The KIB: Pesach News – Extra Virgin Olive Oil and Sprays
All Extra Virgin Olive Oils and Sprays (without additives), are fine for Pesach use without a special Pesach designation on the label.