The brine salinity, temperature, pressure, clay content and organic matter have been found to be some of the factors affecting mudrock wettability ). Among these, the total organic content was found to be one of the important factors controlling the wettability of organic-rich mudrocks. The air/water contact angle on mudrocks has been found to increase with increase in Total Organic Carbon (TOC) . Positive correlations between TOC and wettability were also observed in the Eagle Ford, Mancos, and Green River shale samples ). These studies are not tested for a wide range of thermal maturities of organic matter and assume that organic matter is always hydrocarbonwet. However other studies, such as , found that a low TOC sample imbibed water much faster when compared to high TOC samples. These observations are inconsistent with the previously mentioned observations and contradict the claim that organic content is always hydrocarbon-wet.