| + | General type log example, Enerplus Resources USA Corp - Hognose 152-94-18B-19H-TF (Neisheim<ref name=Neisheim>Nesheim, T. O., 2019, Examination of downward hydrocarbon charge within the Bakken-Three Forks petroleum system – Williston Basin, North America: Marine and Petroleum Geology, v. 104, p. 346-360.</ref>). |