Wettability and geochemistry of kerogen has a strong impact on the multiphase fluid-flow properties such as relative permeability of organic-rich mudrocks as well as on physical properties of rocks such as resistivity measurements. Therefore, wettability of kerogen could significantly affect water production as well as assessment of hydrocarbon reserves in organicrich mudrocks. Kerogen is often considered as hydrocarbon-wet in reservoir characterization. However, recent studies indicate that changes in kerogen structure and composition could alter its wettability. Previous molecular simulation studies on kerogen wettability used simplistic models for kerogen structure, which do not capture the complexity and heterogeneity of kerogen. Moreover, there have been no experimental studies to determine the wettability of pure kerogen. Thus, more advanced molecular and experimental studies are required to determine the impact of geochemistry on kerogen wettability.