The Dalia field has three main reservoirs and the adjacent Camelia reservoir. These reservoirs were formed more than 25 million years ago by the accumulation of sediment at the mouth of the Congo River. Today, they lie not very far (about ) below the seabed, forming reservoirs that contain a viscous (between 21° and 23° API) oil at relatively low temperatures of between 45 °C and 50 °C. Associated gas will not be flared but reinjected, thus contributing to maintaining the pressure of the field.