An Oil Dispersion (OD) formulation is a solid active ingredient dispersed in oil. The oil can vary from paraffinic to aromatic solvent types and vegetable oil or
methylated seed oils. Ideally the active ingredient is uniformly suspended in the oil phase.

ODs are an excellent delivery system for water sensitive active ingredients such as sulfonylureas. However, ODs have extended to other active ingredients due to
their better spray retention, spreading and foliar uptake as the carrier oil often acts as an adjuvant.